International Journal of Endocrinology http://www.hindawi.com The latest articles from Hindawi Publishing Corporation © 2014 , Hindawi Publishing Corporation . All rights reserved. The Effects of Lycopene on the Methylation of the GSTP1 Promoter and Global Methylation in Prostatic Cancer Cell Lines PC3 and LNCaP Mon, 20 Oct 2014 06:59:41 +0000 http://www.hindawi.com/journals/ije/2014/620165/ DNA (cytosine-5-) methylation silencing of GSTP1 function occurs in prostate adenocarcinoma (PCa). Previous studies have shown that there is an inverse relationship between dietary lycopene intake and the risk of PCa. However, it is unknown whether lycopene reactivates the tumor suppressor gene glutathioneS-transferase-π (GSTP1) by demethylation of the hypermethylated CpGs that act to silence the GSTP1 promoter. Here, we demonstrated that lycopene treatment significantly decreased the methylation levels of the GSTP1 promoter and increased the mRNA and protein levels of GSTP1 in an androgen-independent PC-3 cell line. In contrast, lycopene treatment did not demethylate the GSTP1 promoter or increase GSTP1 expression in the androgen-dependent LNCaP cell line. DNA methyltransferase (DNMT) 3A protein levels were downregulated in PC-3 cells following lycopene treatment; however, DNMT1 and DNMT3B levels were unchanged. Furthermore, the long interspersed element (LINE-1) and short interspersed element ALU were not demethylated when treated by lycopene. In LNCaP cells, lycopene treatment did not affect any detected DNMT protein expression, and the methylation levels of LINE-1 and ALU were decreased. These results indicated that the protective effect of lycopene on the prostate is different between androgen-dependent and androgen-independent derived PCa cells. Further, in vivo studies should be conducted to confirm these promising results and to evaluate the potential role of lycopene in the protection of the prostate. Li-Juan Fu, Yu-Bin Ding, Lan-Xiang Wu, Chun-Jie Wen, Qiang Qu, Xue Zhang, and Hong-Hao Zhou Copyright © 2014 Li-Juan Fu et al. All rights reserved. Association of ATM Gene Polymorphism with PTC Metastasis in Female Patients Thu, 16 Oct 2014 13:02:01 +0000 http://www.hindawi.com/journals/ije/2014/370825/ Ataxia telangiectasia mutated (ATM) gene is critical in the process of recognizing and repairing DNA lesions and is related to invasion and metastasis of malignancy. The incidence rate of papillary thyroid cancer (PTC) has increased for several decades and is higher in females than males. In this study, we want to investigate whether ATM polymorphisms are associated with gender-specific metastasis of PTC. 358 PTC patients in Northern China, including 109 males and 249 females, were included in our study. Four ATM single nucleotide polymorphisms (SNPs) were genotyped using Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry (MALDI-TOF-MS). Association between genotypes and the gender-specific risk of metastasis was assessed by odds ratios (OR) and 95% confidence intervals (CI) under the unconditional logistic regression analysis. Significant associations were observed between rs189037 and metastasis of PTC in females under different models of inheritance (codominant model: , 95% CI 0.04–0.56, for GA versus GG and , 95% CI 0.01–0.74, for AA versus GG, resp.; dominant model: , 95% CI 0.25–0.98, ; overdominant model: , 95% CI 0.25–0.89, ). However, no association remained significant after Bonferroni correction. Our findings suggest a possible association between ATM rs189037 polymorphisms and metastasis in female PTCs. Yulu Gu, Xiaoli Liu, Yaqin Yu, Jieping Shi, Lizhe Ai, Hui Sun, Joseph Sam Kanu, Chong Wang, and Yawen Liu Copyright © 2014 Yulu Gu et al. All rights reserved. Pretransplant HbA1c Is a Useful Predictor for the Development of New-Onset Diabetes in Renal Transplant Recipients Receiving No or Low-Dose Erythropoietin Thu, 16 Oct 2014 11:40:49 +0000 http://www.hindawi.com/journals/ije/2014/436725/ Aims. To evaluate the predictive power of pretransplant HbA1c for new-onset diabetes after transplantation (NODAT) in kidney transplant candidates, who had several predispositions for fluctuated HbA1c levels. Methods. We performed a retrospective study of 119 patients without diabetes who received kidney transplantation between March 2000 and January 2012. Univariate and multivariate logistic regression analyses were used to investigate the association of several parameters with NODAT. Predictive discrimination of HbA1c was assessed using a receiver-operating characteristic curve. Results. Seventeen patients (14.3%) developed NODAT within 1 year of transplantation. Univariate logistic regression analysis revealed that recipient age, gender, and HbA1c were predictors of NODAT. In the multivariate analysis, the association between pretransplant HbA1c and NODAT development did not reach statistical significance (). To avoid the strong influence of high-dose erythropoietin on HbA1c levels, we performed subgroup analyses on 85 patients receiving no or low-dose (≤6000 IU/week) erythropoietin. HbA1c was again an independent predictor for NODAT. Receiver-operating characteristic analysis revealed a cut-off value of 5.2% with an optimal sensitivity of 64% and specificity of 78% for predicting NODAT. Conclusions. Our results reveal that the pretransplant HbA1c level is a useful predictor for NODAT in patients receiving no or low-dose erythropoietin. Kazuaki Tokodai, Noritoshi Amada, Izumi Haga, Atsushi Nakamura, Toshiaki Kashiwadate, Naoki Kawagishi, and Noriaki Ohuchi Copyright © 2014 Kazuaki Tokodai et al. All rights reserved. Imaging-Cytology Correlation of Thyroid Nodules with Initially Benign Cytology Mon, 13 Oct 2014 12:51:16 +0000 http://www.hindawi.com/journals/ije/2014/491508/ Objective. To determine the role of imaging-cytology correlation in reducing false negative results of fine-needle aspiration (FNA) at thyroid nodules. Methods. This retrospective study included 667 nodules 1 cm or larger in 649 patients diagnosed as benign at initial cytologic evaluation and that underwent follow-up ultrasound (US) or FNA following a radiologist’s opinion on concordance between imaging and cytologic results. We compared the risk of malignancy of nodules classified into subgroups according to the initial US features and imaging-cytology correlation. Results. Among included nodules, 11 nodules were proven to be malignant (1.6%) in follow-up FNA or surgery. The malignancy rate was higher in nodules with suspicious US features (11.4%) than in nodules without suspicious US features (0.5%, ). When a thyroid nodule had discordant US findings on image review after having benign FNA results, malignancy rate increased to 23.3%, significantly higher than that of nodules with suspicious US features (). However, no significant difference was found in the risk of malignancy between the nodules without suspicious US features (0.5%) and imaging-cytology concordant nodules (0.6%, ). Conclusions. Repeat FNA can be effectively limited to patients with cytologically benign thyroid nodules showing discordance in imaging-cytology correlation after initial biopsy, which reduces unnecessary repeat aspirations. Shin Hye Hwang, Ji Min Sung, Eun-Kyung Kim, Hee Jung Moon, and Jin Young Kwak Copyright © 2014 Shin Hye Hwang et al. All rights reserved. Current Iodine Nutrition Status and Awareness of Iodine Deficiency in Tuguegarao, Philippines Mon, 13 Oct 2014 10:07:56 +0000 http://www.hindawi.com/journals/ije/2014/210528/ The Philippines is one of the countries where adequate iodine status has been achieved. However, iodine deficiency still remains an important public health problem in this country. In this study, we evaluated iodine nutrition status and investigated an awareness status of iodine deficiency targeting high school students of Tuguegarao, Philippines. A total of 260 students provided samples for urinary iodine analysis, among which 146 students completed thyroid volume measurement by ultrasonography and answering the questionnaires. The median urinary iodine level was 355.3 µg/L and only 3.8% of the students were in the range of iodine deficiency status according to the ICCIDD criteria. Although 62.3% of students answered that they can list problems resulting from iodine deficiency, a majority of students (70.5%) were unable to identify problems other than goiter. They did not appreciate that adequate iodine levels are important during pregnancy and for development of children. 33.6% of students answered that they did not use iodized salt and the biggest reason was that they did not find it necessary. Based on these results, we suggest that a future strategy should be focused on vulnerable groups to completely eliminate iodine deficiency, including women at their reproductive ages and during pregnancy. Bu Kyung Kim, Jee-Yeong Jeong, Kwang-Hyuk Seok, Andrew S. Lee, Chul Ho Oak, Ghi Chan Kim, Chae-Kyeong Jeong, Sung In Choi, Pablo M. Afidchao, and Young Sik Choi Copyright © 2014 Bu Kyung Kim et al. All rights reserved. Changes in Coagulation and Fibrinolytic Indices in Women with Polycystic Ovarian Syndrome Undergoing Controlled Ovarian Hyperstimulation Mon, 13 Oct 2014 08:38:15 +0000 http://www.hindawi.com/journals/ije/2014/731498/ Background. Polycystic ovarian syndrome (PCOS) women undergoing in vitro fertilization and embryo transfer (IVF-ET) treatment always attain a low cumulative pregnancy rate disaccording with the satisfactory number of oocytes. Objective. We aim to evaluate the status of coagulation and fibrinolytic system in PCOS patients undergoing controlled ovarian hyperstimulation (COH) process. Method. Of the 97 women, 30 patients with PCOS composed the study group; 67 women of child-bearing age with normal endocrine function composed the control group. All participants underwent GnRH agonist standard long protocol, and plasma HCY, FVIII, FX, and D-dimer levels as well as hormone parameters were measured at day of full downregulation, hCG priming, and embryos transfer. Results. On day of full downregulation, FX levels were significantly higher in PCOS group (). On hCG priming day, FX and estrogen levels in PCOS group were higher than in the control group and FVIII levels were significantly lower on day of embryos transfer whereas FX and E2 levels were significantly higher in PCOS group. Conclusion. Hypercoagulable state during peri-implantation phase would probably lead to poor microcirculation of endometrium and be one of the most important disadvantages of successful implantation and subsequent clinical pregnancy. Ying Huang, Yong Zhao, Ling Yan, Yun-Hai Chuai, Ling-Ling Liu, Yi Chen, Min Li, and Ai-Ming Wang Copyright © 2014 Ying Huang et al. All rights reserved. Autoimmune and Neoplastic Thyroid Diseases Associated with Hepatitis C Chronic Infection Mon, 13 Oct 2014 07:33:23 +0000 http://www.hindawi.com/journals/ije/2014/935131/ Frequently, patients with hepatitis C virus (HCV) chronic infection have high levels of serum anti-thyroperoxidase and/or anti-thyroglobulin autoantibodies, ultrasonographic signs of chronic autoimmune thyroiditis, and subclinical hypothyroidism, in female gender versus healthy controls, or hepatitis B virus infected patients. In patients with “HCV-associated mixed cryoglobulinemia” (MC + HCV), a higher prevalence of thyroid autoimmune disorders was shown not only compared to controls, but also versus HCV patients without cryoglobulinemia. Patients with MC + HCV or HCV chronic infection show a higher prevalence of papillary thyroid cancer than controls, in particular in patients with autoimmune thyroiditis. Patients with HCV chronic infection, or with MC + HCV, in presence of autoimmune thyroiditis, show higher serum levels of T-helper (Th)1 (C-X-C motif) ligand 10 (CXCL10) chemokine, but normal levels of Th2 (C-C motif) ligand 2 chemokine, than patients without thyroiditis. HCV thyroid infection could act by upregulating CXCL10 gene expression and secretion in thyrocytes recruiting Th1 lymphocytes that secrete interferon-γ and tumor necrosis factor-α. These cytokines might induce a further CXCL10 secretion by thyrocytes, thus perpetuating the immune cascade, which may lead to the appearance of autoimmune thyroid disorders in genetically predisposed subjects. A careful monitoring of thyroid function, particularly where nodules occur, is recommended in HCV patients. Poupak Fallahi, Silvia Martina Ferrari, Ugo Politti, Dilia Giuggioli, Clodoveo Ferri, and Alessandro Antonelli Copyright © 2014 Poupak Fallahi et al. All rights reserved. Correlation of High-Molecular-Weight Adiponectin and Leptin Concentrations with Anthropometric Parameters and Insulin Sensitivity in Newborns Sun, 12 Oct 2014 08:50:39 +0000 http://www.hindawi.com/journals/ije/2014/435376/ Objective. High-molecular-weight adiponectin (HMW-adiponectin) and leptin are two important adipokines. The aim of this study was to examine the association between the two adipokines and anthropometric measurements of neonates at birth. Furthermore, we would like to explore whether HMW-adiponectin and leptin correlate with insulin sensitivity in neonates. Methods. Venous cord blood samples were obtained from 266 full-term healthy neonates consecutively born at Peking Union Medical College Hospital. HMW-adiponectin, leptin, blood glucose, and insulin concentrations were measured. Results. HMW-adiponectin and leptin were significantly higher in females compared with males ( and , resp.). Univariate correlation analysis showed that leptin concentrations in cord blood were positively associated with gestational age, birth weight, body length, ponderal index, placenta weight, insulin, and insulin sensitivity (all ). However, there was no correlation between cord blood HMW-adiponectin levels and foetal anthropometric measurements or foetal insulin sensitivity indicators (all ). Multivariate linear regression analysis indicated that leptin (, ) in cord blood was independently associated with insulin sensitivity. Conclusions. Leptin concentrations, but not HMW-adiponectin, were positively associated with foetal anthropometric measurements. Leptin concentrations are significantly associated with foetal insulin sensitivity, and there were no significant correlations between HMW-adiponectin levels and foetal insulin sensitivity. Jia Zheng, Xinhua Xiao, Qian Zhang, Lili Mao, Ming Li, Miao Yu, Jianping Xu, and Ying Wang Copyright © 2014 Jia Zheng et al. All rights reserved. Genetic Variations in the Kir6.2 Subunit (KCNJ11) of Pancreatic ATP-Sensitive Potassium Channel Gene Are Associated with Insulin Response to Glucose Loading and Early Onset of Type 2 Diabetes in Childhood and Adolescence in Taiwan Sun, 21 Sep 2014 09:31:58 +0000 http://www.hindawi.com/journals/ije/2014/983016/ To investigate the role of E23K polymorphism of the KCNJ11 gene on early onset of type 2 diabetes in school-aged children/adolescents in Taiwan, we recruited 38 subjects with type 2 diabetes (ages 18.6 ± 6.6 years; body mass index percentiles 83.3 ± 15.4) and 69 normal controls (ages 17.3 ± 3.8 years; body mass index percentiles 56.7 ± 29.0) from a national surveillance for childhood/adolescent diabetes in Taiwan. We searched for the E23K polymorphism of the KCNJ11 gene. We found that type 2 diabetic subjects had higher carrier rate of E23K polymorphism of KCNJ11 gene than control subjects (P = 0.044). After adjusting for age, gender, body mass index percentiles, and fasting plasma insulin, the E23K polymorphism contributed to an increased risk for type 2 diabetes (P = 0.047). K23-allele-containing genotypes conferring increased plasma insulin level during OGTT in normal subjects. However, the diabetic subjects with the K23-allele-containing genotypes had lower fasting plasma insulin levels after adjustment of age and BMI percentiles. In conclusion, the E23K variant of the KCNJ11 gene conferred higher susceptibility to type 2 diabetes in children/adolescents. Furthermore, in normal glucose-tolerant children/adolescents, K23 allele carriers had a higher insulin response to oral glucose loading. Yi-Der Jiang, Lee-Ming Chuang, Dee Pei, Yann-Jinn Lee, Jun-Nan Wei, Fung-Chang Sung, and Tien-Jyun Chang Copyright © 2014 Yi-Der Jiang et al. All rights reserved. Differences in the Cardiometabolic Control in Type 2 Diabetes according to Gender and the Presence of Cardiovascular Disease: Results from the eControl Study Sun, 21 Sep 2014 05:40:40 +0000 http://www.hindawi.com/journals/ije/2014/131709/ The objective of this cross-sectional study was to assess differences in the control and treatment of modifiable cardiovascular risk factors (CVRF: HbA1c, blood pressure [BP], LDL-cholesterol, body mass index, and smoking habit) according to gender and the presence of cardiovascular disease (CVD) in patients with type 2 diabetes mellitus (T2DM) in Catalonia, Spain. The study included available data from electronic medical records for a total of 286,791 patients. After controlling for sex, age, diabetes duration, and treatment received, both men and women with prior CVD had worse cardiometabolic control than patients without previous CVD; women with prior CVD had worse overall control of CVRFs than men except for smoking; and women without prior CVD were only better than men at controlling smoking and BP, with no significant differences in glycemic control. Finally, although the proportion of women treated with lipid-lowering medications was similar to (with prior CVD) or even higher (without CVD) than men, LDL-cholesterol levels were remarkably uncontrolled in both women with and women without CVD. The results stress the need to implement measures to better prevent and treat CVRF in the subgroup of diabetic women, specifically with more intensive statin treatment in those with CVD. Josep Franch-Nadal, Manel Mata-Cases, Irene Vinagre, Flor Patitucci, Eduard Hermosilla, Aina Casellas, Bonaventura Bolivar, and Dídac Mauricio Copyright © 2014 Josep Franch-Nadal et al. All rights reserved. Better Understanding in the Differentiation of Thyroid Follicular Adenoma, Follicular Carcinoma, and Follicular Variant of Papillary Carcinoma: A Retrospective Study Thu, 18 Sep 2014 07:43:40 +0000 http://www.hindawi.com/journals/ije/2014/321595/ Background. To evaluate the role of ultrasonography (US), US-guided fine-needle aspiration (USFNA) and intraoperative frozen section (FS) in follicular neoplasm. Methods. US features, USFNA cytology, and FS results were compared based on the pathology results of patients with follicular adenoma (FA), follicular carcinoma (FC), and follicular variant of papillary thyroid carcinoma (FVPTC). Results. FC and FVPTC showed significantly higher rates of suspicious US features () and positive findings on either US or cytology, 80.0% and 90.7%, compared to FA, 64.5% (). Intraoperative FS showed higher malignant rates in FVPTC and FC (81.8% and 75.0%, resp.), compared to FA (3.8%, ). Conclusion. Suspicious US features were more significantly seen in FC and FVPTC compared to FA. Intraoperative FS is useful in the differential diagnosis of these lesions and supplements cytology results of USFNA. Jung Hyun Yoon, Eun-Kyung Kim, Ji Hyun Youk, Hee Jung Moon, and Jin Young Kwak Copyright © 2014 Jung Hyun Yoon et al. All rights reserved. Augmented β-Cell Function and Mass in Glucocorticoid-Treated Rodents Are Associated with Increased Islet Ir-β/AKT/mTOR and Decreased AMPK/ACC and AS160 Signaling Wed, 17 Sep 2014 09:37:33 +0000 http://www.hindawi.com/journals/ije/2014/983453/ Glucocorticoid (GC) therapies may adversely cause insulin resistance (IR) that lead to a compensatory hyperinsulinemia due to insulin hypersecretion. The increased β-cell function is associated with increased insulin signaling that has the protein kinase B (AKT) substrate with 160 kDa (AS160) as an important downstream AKT effector. In muscle, both insulin and AMP-activated protein kinase (AMPK) signaling phosphorylate and inactivate AS160, which favors the glucose transporter (GLUT)-4 translocation to plasma membrane. Whether AS160 phosphorylation is modulated in islets from GC-treated subjects is unknown. For this, two animal models, Swiss mice and Wistar rats, were treated with dexamethasone (DEX) (1 mg/kg body weight) for 5 consecutive days. DEX treatment induced IR, hyperinsulinemia, and dyslipidemia in both species, but glucose intolerance and hyperglycemia only in rats. DEX treatment caused increased insulin secretion in response to glucose and augmented β-cell mass in both species that were associated with increased islet content and increased phosphorylation of the AS160 protein. Protein AKT phosphorylation, but not AMPK phosphorylation, was found significantly enhanced in islets from DEX-treated animals. We conclude that the augmented β-cell function developed in response to the GC-induced IR involves inhibition of the islet AS160 protein activity. André O. P. Protzek, José M. Costa-Júnior, Luiz F. Rezende, Gustavo J. Santos, Tiago Gomes Araújo, Jean F. Vettorazzi, Fernanda Ortis, Everardo M. Carneiro, Alex Rafacho, and Antonio C. Boschero Copyright © 2014 André O. P. Protzek et al. All rights reserved. Fat, Muscle, and Bone Interactions in Obesity and the Metabolic Syndrome Mon, 15 Sep 2014 06:38:01 +0000 http://www.hindawi.com/journals/ije/2014/247076/ Reina Armamento-Villareal, Nicola Napoli, Debra Waters, and Dennis Villareal Copyright © 2014 Reina Armamento-Villareal et al. All rights reserved. Investigation of the Protective Effects of Taurine against Alloxan-Induced Diabetic Retinal Changes via Electroretinogram and Retinal Histology with New Zealand White Rabbits Sun, 14 Sep 2014 13:17:03 +0000 http://www.hindawi.com/journals/ije/2014/631549/ The purpose of this study was to investigate the protective role of orally administered taurine against diabetic retinal changes via electroretinogram (ERG) and retinal histology on rabbits. Rabbits were randomly assigned into groups: Group I (vehicle administration only); Group II (diabetes: induced by 100 mg/kg alloxan injection); Group III (diabetes and fed with 200 mg/kg taurine); and Group IV (diabetes and fed with 400 mg/kg taurine). The body weight and blood glucose levels of the rabbits were monitored weekly. The ERG was measured on weeks 5 and 15. Retinal histology was analyzed in the end of the experiment. Results revealed that a taurine supplement significantly ameliorates the alloxan-induced hyperglycemia and protects the retina from electrophysiological changes. Group II showed a significant change in the mean scotopic b-wave amplitude when compared to that of Group I, whereas the diabetic rabbits treated with taurine (Group III and IV) were analogous to Group I. Histologically, the amount of Bipolar and Müller cells showed no difference between all groups and when compared with those of Group I. Our study provides solid evidences that taurine possesses an antidiabetic activity, reduced loss of body weight, and less electrophysiological changes of the diabetic retina. Samuel Tung-Hsing Chiang, Shang-Min Yeh, Yi-Chen Chen, Shiun-Long Lin, and Jung-Kai Tseng Copyright © 2014 Samuel Tung-Hsing Chiang et al. All rights reserved. Multiple Components of the VHL Tumor Suppressor Complex Are Frequently Affected by DNA Copy Number Loss in Pheochromocytoma Sun, 14 Sep 2014 07:53:16 +0000 http://www.hindawi.com/journals/ije/2014/546347/ Pheochromocytomas (PCC) are rare tumors that arise in chromaffin tissue of the adrenal gland. PCC are frequently inherited through predisposing mutations in genes such as the von Hippel-Lindau (VHL) tumor suppressor. VHL is part of the VHL elongin BC protein complex that also includes CUL2/5, TCEB1, TCEB2, and RBX1; in normoxic conditions this complex targets hypoxia-inducible factor 1 alpha (HIF1A) for degradation, thus preventing a hypoxic response. VHL inactivation by genetic mechanisms, such as mutation and loss of heterozygosity, inhibits HIF1A degradation, even in the presence of oxygen, and induces a pseudohypoxic response. However, the described <10% VHL mutation rate cannot account for the high frequency of hypoxic response observed. Indeed, little is known about genetic mechanisms disrupting other complex component genes. Here, we show that, in a panel of 171 PCC tumors, 59.6% harbored gene copy number loss (CNL) of at least one complex component. CNL significantly reduced gene expression and was associated with enrichment of gene targets controlled by HIF1. Interestingly, we show that VHL-related renal clear cell carcinoma harbored disruption of VHL alone. Our results indicate that VHL elongin BC protein complex components other than VHL could be important for PCC tumorigenesis and merit further investigation. David A. Rowbotham, Katey S. S. Enfield, Victor D. Martinez, Kelsie L. Thu, Emily A. Vucic, Greg L. Stewart, Kevin L. Bennewith, and Wan L. Lam Copyright © 2014 David A. Rowbotham et al. All rights reserved. Gender Differences in Ghrelin Association with Cardiometabolic Risk Factors in Arab Population Tue, 09 Sep 2014 00:00:00 +0000 http://www.hindawi.com/journals/ije/2014/730472/ Ghrelin is a stomach produced hormone that has been shown to have protective role against development of CVD which is a leading cause of death in the Arab world. The objective of this study is to examine the gender difference in association between traditional CVD risk factors and plasma ghrelin among Arabs. 359 Arab residents in Kuwait participated in a cross-sectional survey (≥20 years old): 191 were females and 168 were males. Plasma level of ghrelin was assessed using Luminex-based assay. Ghrelin levels were significantly higher in females (935 ± 78 pg/mL) than males (763 ± 65 pg/mL) (). Females showed inverse association with WC (, ) and HbA1C (, ) as well as SBP (, ) and DBP (, ), respectively. Higher levels of ghrelin were shown to associate with increased insulin resistance, as measured by HOMAIR, in male Arab subjects (-trend = 0.0202) but not in females. In this study we show that higher ghrelin level was negatively associated with measures of obesity, HbA1C, and blood pressure in females and positively associated with increased insulin resistance in Arab males. Mohamed Abu-Farha, Mohammed Dehbi, Fiona Noronha, Ali Tiss, Monira Alarouj, Kazem Behbehani, Abdullah Bennakhi, and Naser Elkum Copyright © 2014 Mohamed Abu-Farha et al. All rights reserved. Male Accessory Gland Infection: Relevance of Serum Total Testosterone Levels Mon, 08 Sep 2014 08:13:43 +0000 http://www.hindawi.com/journals/ije/2014/915752/ Aim of the present study was to evaluate the different ultrasound characterization of fertile symptomatic patients with MAGI (male accessory gland infection) according to different serum concentrations of total T (TT). We analyzed the ultrasound and hormonal data of 200 patients aged between 24.0 and 67.0 years. Patients were divided into six groups according to the sextile distribution of TT. Patients with serum concentrations of TT < 3.6 ng mL−1 had a higher mean duration of symptoms compared to the other examined groups. Patients with serum concentrations of TT > 6.6 ng mL−1 showed a frequency of ultrasound criteria suggestive for bilateral form of prostatitis and prostate-vesiculo-epididymitis and significantly lower compared to the other examined groups. At multivariate logistic regression analysis adjusted for age and BMI, TT was an independent predictive factor of prostatovesiculitis (OR = 0.818 [95% CI: 0.675–0.992]; ) and prostate-vesiculo-epididymitis (OR = 0.714 [95% CI: 0.578–0.880]; ), which represent the main forms of complicated MAGI. The results of this study suggest that male hypogonadism could be associated with a different ultrasound characterization of these patients. R. A. Condorelli, A. E. Calogero, E. Vicari, V. Favilla, S. Cimino, G. I. Russo, G. Morgia, and S. La Vignera Copyright © 2014 R. A. Condorelli et al. All rights reserved. The Effects of Soy Bean Flour Enriched Bread Intake on Anthropometric Indices and Blood Pressure in Type 2 Diabetic Women: A Crossover Randomized Controlled Clinical Trial Mon, 08 Sep 2014 00:00:00 +0000 http://www.hindawi.com/journals/ije/2014/240760/ Previous studies showed that soy bean has the potential to improve many aspects of diabetes state and provide metabolic benefits that aid in weight management. We aimed to determine the effects of soy bean flour enriched bread on anthropometric indices and blood pressure among type 2 diabetic patients. This randomized, crossover, clinical trial was performed in 30 type 2 diabetic women. There were two trial periods for 6 weeks and a wash-out period for 4 weeks. In the soy bread diet period, 120 g of soy bean flour enriched bread was consumed each day instead of the same amount of their usual bread or other cereal products. After a 4-week wash-out period, participants were crossed over for another 6 weeks. Mean (±SD) age of study participants was 45.7 ± 3.8 years. The results of our study showed no significant effects of soy bean flour enriched bread on anthropometric indices and blood pressure among diabetic patients. Despite the slight reduction in BMI, waist circumference, and percent of body fat, there were no significant differences in changes of these values between two groups. No significant changes in waist to hip ratio and blood pressure were seen. Asma Salari Moghaddam, Mohammad Hassan Entezari, Bijan Iraj, Gholamreza Askari, Elham Sharifi Zahabi, and Mohammad Reza Maracy Copyright © 2014 Asma Salari Moghaddam et al. All rights reserved. Endoscopic Retroperitoneal Adrenalectomy for Adrenal Metastases Mon, 08 Sep 2014 00:00:00 +0000 http://www.hindawi.com/journals/ije/2014/806194/ Objectives. To evaluate whether retroperitoneal approach for adrenalectomy is a safe and effective treatment for adrenal metastases (AM). Methods. From June 2004 to January 2014, nine consecutive patients with AM were treated with endoscopic retroperitoneal adrenalectomy (ERA). A retrospective study was conducted, and clinical data, tumor characteristics, and oncologic outcomes were acquired and analyzed. Results. Renal cancer was the primary site of malignancy in 44.4% of cases. The mean operative time was 132 ± 10.4 min. There were 5 synchronous and 4 metachronous AM. One patient required conversion to transperitoneal laparoscopic procedure. No mortality or perioperative complications were observed. The median overall survival was 11 months (range: 2–42 months). Survival rates of 50% and 25% were identified at 1 and 3 years, respectively. At the end of the study, 4 patients were alive with a mean observed follow-up of 20 months. No patients presented with local tumor relapse or port-site metastases. Conclusions. This study shows that ERA is a safe and effective procedure for resection of AM and advances the surgical treatment of adrenal disease. The use of the retroperitoneal approach for adrenal tumors less than 6 cm can provide very favorable surgical outcomes. Gintaras Simutis, Givi Lengvenis, Virgilijus Beiša, and Kęstutis Strupas Copyright © 2014 Gintaras Simutis et al. All rights reserved. Study of Microvessel Density and the Expression of Vascular Endothelial Growth Factors in Adrenal Gland Pheochromocytomas Wed, 03 Sep 2014 11:17:54 +0000 http://www.hindawi.com/journals/ije/2014/104129/ Angiogenesis (neoangiogenesis), a process of neovascularization, is an essential step for local tumor growth and distant metastasis formation. We have analysed angiogenesis status: vascular architecture, microvessel density, and vascular endothelial growth factors expression in 62 adrenal pheochromocytomas: 57 benign and 5 malignant. Immunohistochemical evaluation revealed that vascular architecture and vessel density are different in the central and subcapsular areas of the tumor. Furthermore, we have observed a strong correlation between number of macrophages and microvessel density in the central and subcapsular areas of the tumor and between the expression of VEGF-A in tumor cells and microvessel density in central and subcapsular areas of the tumor. Secondary changes in these tumors influence the results and both vascular architecture and microvessel density are markedly disturbed by hemorrhagic and cystic changes in pheochromocytomas. These changes are partially caused by laparoscopic operation technique. However, no differences in vascular parameters were found between pheochromocytomas with benign and malignant clinical behavior. Our observation showed that analysis of angiogenesis, as a single feature, does not help in differentiating malignant and benign pheochromocytomas and has no independent prognostic significance. On the other hand, high microvessel density in pheochromocytoma is a promising factor for antiangiogenic therapy in malignant cases. Magdalena Białas, Grzegorz Dyduch, Joanna Dudała, Monika Bereza-Buziak, Alicja Hubalewska-Dydejczyk, Andrzej Budzyński, and Krzysztof Okoń Copyright © 2014 Magdalena Białas et al. All rights reserved. Adrenal Disorders and the Paediatric Brain: Pathophysiological Considerations and Clinical Implications Wed, 03 Sep 2014 08:28:43 +0000 http://www.hindawi.com/journals/ije/2014/282489/ Various neurological and psychiatric manifestations have been recorded in children with adrenal disorders. Based on literature review and on personal case-studies and case-series we focused on the pathophysiological and clinical implications of glucocorticoid-related, mineralcorticoid-related, and catecholamine-related paediatric nervous system involvement. Childhood Cushing syndrome can be associated with long-lasting cognitive deficits and abnormal behaviour, even after resolution of the hypercortisolism. Exposure to excessive replacement of exogenous glucocorticoids in the paediatric age group (e.g., during treatments for adrenal insufficiency) has been reported with neurological and magnetic resonance imaging (MRI) abnormalities (e.g., delayed myelination and brain atrophy) due to potential corticosteroid-related myelin damage in the developing brain and the possible impairment of limbic system ontogenesis. Idiopathic intracranial hypertension (IIH), a disorder of unclear pathophysiology characterised by increased cerebrospinal fluid (CSF) pressure, has been described in children with hypercortisolism, adrenal insufficiency, and hyperaldosteronism, reflecting the potential underlying involvement of the adrenal-brain axis in the regulation of CSF pressure homeostasis. Arterial hypertension caused by paediatric adenomas or tumours of the adrenal cortex or medulla has been associated with various hypertension-related neurological manifestations. The development and maturation of the central nervous system (CNS) through childhood is tightly regulated by intrinsic, paracrine, endocrine, and external modulators, and perturbations in any of these factors, including those related to adrenal hormone imbalance, could result in consequences that affect the structure and function of the paediatric brain. Animal experiments and clinical studies demonstrated that the developing (i.e., paediatric) CNS seems to be particularly vulnerable to alterations induced by adrenal disorders and/or supraphysiological doses of corticosteroids. Physicians should be aware of potential neurological manifestations in children with adrenal dysfunction to achieve better prevention and timely diagnosis and treatment of these disorders. Further studies are needed to explore the potential neurological, cognitive, and psychiatric long-term consequences of high doses of prolonged corticosteroid administration in childhood. Vincenzo Salpietro, Agata Polizzi, Gabriella Di Rosa, Anna Claudia Romeo, Valeria Dipasquale, Paolo Morabito, Valeria Chirico, Teresa Arrigo, and Martino Ruggieri Copyright © 2014 Vincenzo Salpietro et al. All rights reserved. Circulating Sclerostin and Irisin Are Related and Interact with Gender to Influence Adiposity in Adults with Prediabetes Wed, 03 Sep 2014 07:54:30 +0000 http://www.hindawi.com/journals/ije/2014/261545/ Objectives. Sclerostin, an osteocyte-specific protein, has been found to be related to adiposity and glucose metabolism. Irisin, a myokine, can affect browning of white fat and influence glucose and energy homeostasis. Taken together, this suggests a probable network among fat, bone, and muscle that may influence health outcomes. The aims of this study were to investigate the relationship of circulating sclerostin and irisin and their association with adiposity (assessed by body mass index (BMI)). Materials/Methods. A cross-sectional study included 98 adults with impaired fasting glucose and/or impaired glucose tolerance. 75 gm OGTT was performed in all subjects. Fasting plasma samples were obtained for glycated hemoglobin, calcium, creatinine, serum sclerostin and irisin. Results. Circulating irisin and sclerostin were highly correlated . After controlling for age, gender, and BMI, irisin was significantly related to sclerostin . Multivariate linear regression analysis demonstrated that circulating sclerostin and irisin were negatively associated with BMI, independent of age in males. In females, no relationship of sclerostin or irisin to BMI was found. Conclusions. Circulating irisin and sclerostin are highly related. Interventions targeting irisin could affect sclerostin and vice versa. Theerawut Klangjareonchai, Hataikarn Nimitphong, Sunee Saetung, Nuttapimon Bhirommuang, Rattanapan Samittarucksa, Suwannee Chanprasertyothin, Rattana Sudatip, and Boonsong Ongphiphadhanakul Copyright © 2014 Theerawut Klangjareonchai et al. All rights reserved. Sexual Dysfunction in Women with Diabetic Kidney Wed, 03 Sep 2014 05:36:39 +0000 http://www.hindawi.com/journals/ije/2014/346834/ Few studies address alteration of sexual function in women with diabetes and chronic kidney disease (CKD). Quality of life surveys suggest that discussion of sexual function and other reproductive issues are of psychosocial assessment and that education on sexual function in the setting of chronic diseases such as diabetes and CKD is widely needed. Pharmacologic therapy with estrogen/progesterone and androgens along with glycemic control, correction of anemia, ensuring adequate dialysis delivery, and treatment of underlying depression are important. Changes in lifestyle such as smoking cessation, strength training, and aerobic exercises may decrease depression, enhance body image, and have positive impacts on sexuality. Many hormonal abnormalities which occur in women with diabetes and CKD who suffer from chronic anovulation and lack of progesterone secretion may be treated with oral progesterone at the end of each menstrual cycle to restore menstrual cycles. Hypoactive sexual desire disorder (HSDD) is the most common sexual problem reported by women with diabetes and CKD. Sexual function can be assessed in women, using the 9-item Female Sexual Function Index, questionnaire, or 19 items. It is important for nephrologists and physicians to incorporate assessment of sexual function into the routine evaluation protocols. Ersilia Satta, Carlo Magno, Alessandro Galì, Antonino Inferrera, Roberta Granese, Carmela Aloisi, Michele Buemi, Guido Bellinghieri, and Domenico Santoro Copyright © 2014 Ersilia Satta et al. All rights reserved. Factors Associated with Utilization of Dipeptidyl-4 Inhibitors in Patients with Type 2 Diabetes Mellitus: A Cross-Sectional Retrospective Study Tue, 02 Sep 2014 10:15:06 +0000 http://www.hindawi.com/journals/ije/2014/367564/ Dipeptidyl-4 (DPP-4) inhibitors are oral antidiabetic agents recently introduced to Malaysia. Thus, limited data is available on their utilization patterns and factors associated with their use. This study aims to analyse the utilization patterns of DPP-4 inhibitors, factors that influenced the choice of agent, and the rationale for treatment with DPP-4 inhibitors in patients with type 2 diabetes mellitus. This retrospective study was conducted to address the utilization pattern of DPP-4 inhibitors and factors that influence choice in type 2 diabetes mellitus patients. 299 subjects taking either sitagliptin or vildagliptin from September 2008 to September 2012 were included in the study. Sitagliptin was more frequently prescribed than vildagliptin. Of the patients prescribed DPP-4 inhibitors, 95% received combinations of these and other agents, whereas only 5% were prescribed DPP-4 inhibitors as monotherapy. Factors affecting the utilization of DPP-4 inhibitors included age and concomitant use of beta blockers and aspirin . Early identification of factors associated with DPP-4 inhibitors is essential to enhance quality use of the drugs. Hasniza Zaman Huri, NorFarahen Selamat, and Shireene Ratna Vethakkan Copyright © 2014 Hasniza Zaman Huri et al. All rights reserved. Markers of Systemic Inflammation and Apo-AI Containing HDL Subpopulations in Women with and without Diabetes Tue, 02 Sep 2014 09:49:14 +0000 http://www.hindawi.com/journals/ije/2014/607924/ Background. Besides their role in reverse cholesterol transport, HDL particles may affect the atherosclerotic process through the modulation of subclinical inflammation. HDL particles differ in size, composition, and, probably, anti-inflammatory properties. This hypothesis has never been explored in diabetic women, frequently having dysfunctional HDL. The potential relationship between lipid profile, Apo-AI containing HDL subclasses distribution, and common inflammatory markers (hsCRP, IL-6) was examined in 160 coronary heart disease- (CHD-) free women with and without type 2 diabetes. Results. Compared to controls, diabetic women showed lower levels of the atheroprotective large α-1, α-2, and pre-α-1 and higher concentration of the small, lipid-poor α-3 HDL particles ( all); diabetic women also had higher hsCRP and IL-6 serum levels (age- and BMI-adjusted ). Overall, HDL subclasses significantly correlated with inflammatory markers: hsCRP inversely correlated with α-1 and pre-α-1 ; IL-6 inversely correlated with α-1 , α-2 , and pre-α-1 and positively with α-3 HDL . Similar correlations were confirmed at univariate regression analysis. Conclusions. More atheroprotective HDL subclasses are associated with lower levels of inflammatory markers, especially in diabetic women. These data suggest that different HDL subclasses may influence CHD risk also through the modulation of inflammation. Giuseppina T. Russo, Annalisa Giandalia, Elisabetta L. Romeo, Angela Alibrandi, Katalin V. Horvath, Bela F. Asztalos, and Domenico Cucinotta Copyright © 2014 Giuseppina T. Russo et al. All rights reserved. Assessment of the Common Risk Factors Associated with Type 2 Diabetes Mellitus in Jeddah Mon, 01 Sep 2014 07:00:05 +0000 http://www.hindawi.com/journals/ije/2014/616145/ Risk factor management is important in avoiding life-threatening complications and preventing new-onset diabetes. We performed a case-control study in 2013 at ten primary health care centers in Jeddah, Saudi Arabia to determine the common risk factors of diabetes mellitus type 2 (DM2) and the demographic background of adult Saudi patients with DM2. Known diabetic patients were recruited as cases, while nondiabetic attendants were selected as controls. A pretested designed questionnaire was used to collect data from 159 cases and 128 controls. Cases were more likely than controls to be men (), less educated (), natives of eastern Saudi Arabia (), retired (), lower-salaried (), or married or divorced (). By univariate analysis cases were likely to be current smokers (), hypertensive (), or overweight/obese (). Cases were also more likely to have a history of DM in a first-degree relative (). By multivariate analysis, cases were more likely to be older than 40 years (), less educated (), married or divorced (), jobless/housewives (), or current smokers (). They were also more likely to have salaries <7000 Saudi riyals (). Overall, prediabetic and high risk groups should be identified and counseled early before the occurrence of diabetes. Manal A. Murad, Samia S. Abdulmageed, Rahila Iftikhar, and Bayan Khaled Sagga Copyright © 2014 Manal A. Murad et al. All rights reserved. Central Hypogonadotropic Hypogonadism: Genetic Complexity of a Complex Disease Mon, 01 Sep 2014 06:13:34 +0000 http://www.hindawi.com/journals/ije/2014/649154/ Central hypogonadotropic hypogonadism (CHH) is an emerging pathological condition frequently associated with overweight, metabolic syndrome, diabetes, and midline defects. The genetic mechanisms involve mutations in at least twenty-four genes regulating GnRH neuronal migration, secretion, and activity. So far, the mechanisms underlying CHH, both in prepubertal and in adulthood onset forms, remain unknown in most of the cases. Indeed, all detected gene variants may explain a small proportion of the affected patients (43%), indicating that other genes or epigenetic mechanisms are involved in the onset of CHH. The aim of this review is to summarize the current knowledge on genetic background of CHH, organizing the large amount of data present in the literature in a clear and concise manner, to produce a useful guide available for researchers and clinicians. Marco Marino, Valeria Moriondo, Eleonora Vighi, Elisa Pignatti, and Manuela Simoni Copyright © 2014 Marco Marino et al. All rights reserved. Evaluation of Postural Parathyroid Hormone Change in Patients with Primary Hyperparathyroidism Mon, 01 Sep 2014 00:00:00 +0000 http://www.hindawi.com/journals/ije/2014/628010/ Purpose. In the present study, we aimed to investigate postural change of PTH in normal individuals and in patients with primary hyperparathyroidism (PHPT). Methods. Twenty-two patients with PHPT and nine healthy controls were enrolled. Following 12 h of fast, patients stayed in recumbent position for an hour and PTH and total Ca measurements were performed at the 45th and 60th minutes of resting. Afterwards, the patients resumed an upright posture for an hour and again blood samples were taken at the 45th and 60th minutes of standing. Results. In the PHPT group, mean PTH was calculated as 153.9 pg/mL in the recumbent position while it was 206.3 during upright position (Δ change was 47.7) (). In the control group mean serum PTH was measured as 41.2 pg/mL in the recumbent position while it was 44.8 pg/mL in the upright position (Δ change was 1.7) (). In both groups, serum Ca was higher in the upright position compared to the recumbent position (). Conclusion. Postural change of serum PTH is significant only in PHPT group. Postural PTH test may give a clue to the clinician when the diagnosis of PHPT is equivocal. Cevdet Aydin, Sefika Burcak Polat, Ahmet Dirikoc, Berna Ogmen, Neslihan Cuhaci, Reyhan Ersoy, and Bekir Cakir Copyright © 2014 Cevdet Aydin et al. All rights reserved. The Study of Serum Vitamin D and Insulin Resistance in Chinese Populations with Normal Glucose Tolerance Mon, 01 Sep 2014 00:00:00 +0000 http://www.hindawi.com/journals/ije/2014/870235/ Objectives. The aim of this study was to investigate the relationship between serum vitamin D and insulin resistance in Chinese subjects without diabetes mellitus. Methods. Serum 25(OH)D was measured in 897 individuals with normal glucose tolerance (NGT). Oral glucose tolerance tests (OGTTs) were conducted to exclude cases with diabetes, impaired fasting glucose (IFG), and impaired glucose tolerance (IGT). Metabolic parameters were measured and compared between the highest and lowest 25(OH)D quartiles. The relationship between serum 25(OH)D and homeostatic model assessment-insulin resistance (HOMA-IR) was analyzed. Results. Indexes, such as HOMA-IR, FINS, and SBP, were negatively correlated with serum 25(OH)D concentrations. Compared with the lowest quartile, individuals in the highest group had decreased Lg (HOMA-IR), Lg (FINS), and SBP. Pearson correlation analyses showed that serum 25(OH)D was negatively associated with age, BMI, Lg (HOMA-IR), and Lg (FINS). Multivariate linear regression analysis confirmed the negative correlation of Lg (HOMA-IR) and 25(OH)D. Conclusions. This study showed that serum 25(OH)D could be regarded as an independent predictor of insulin resistance for subjects without diabetes mellitus in China. Adequate vitamin D supplementation may improve multiple metabolic disturbances. Lin Ding, Congcong Wang, Heliang Ma, Yuling Tian, Yong Lu, and Shuguang Pang Copyright © 2014 Lin Ding et al. All rights reserved. Effects of a New Flavonoid and Myo-Inositol Supplement on Some Biomarkers of Cardiovascular Risk in Postmenopausal Women: A Randomized Trial Sun, 31 Aug 2014 12:07:42 +0000 http://www.hindawi.com/journals/ije/2014/653561/ Background and Aim. Cardiovascular risk is increased in women with menopause and metabolic syndrome. Aim of this study was to test the effect of a new supplement formula, combining cocoa polyphenols, myo-inositol, and soy isoflavones, on some biomarkers of cardiovascular risk in postmenopausal women with metabolic syndrome. Methods and Results. A total of 60 women were enrolled and randomly assigned ( per group) to receive the supplement (NRT: 30 mg of cocoa polyphenols, 80 mg of soy isoflavones, and 2 gr of myo-inositol), or placebo for 6 months. The study protocol included three visits (baseline, 6, and 12 months) for the evaluation of glucose, triglycerides, and HDL-cholesterol (HDL-C), adiponectin, visfatin, resistin, and bone-specific alkaline phosphatase (bone-ALP). At 6 months, a significant difference between NRT and placebo was found for glucose ( versus  mg/dL), triglycerides ( versus  mg/dL), visfatin ( versus  ng/mL), resistin ( versus  µg/L), and b-ALP ( versus  µg/mL). No difference in HDL-C concentrations nor in adiponectin levels between groups was reported at 6 months. Conclusions. The supplement used in this study improves most of the biomarkers linked to metabolic syndrome. This Trial is registered with NCT01400724. Rosario D’Anna, Angelo Santamaria, Maria Letizia Cannata, Maria Lieta Interdonato, Grazia Maria Giorgianni, Roberta Granese, Francesco Corrado, and Alessandra Bitto Copyright © 2014 Rosario D’Anna et al. All rights reserved.