Review Article

Glutamine Metabolism Is Essential for Stemness of Bone Marrow Mesenchymal Stem Cells and Bone Homeostasis

Table 1

The application of glutamine in clinical trials.

Disorders/treatment/diagnosisDetailed effect

Digestive system diseasePostinfectious irritable bowel syndromeRestore tight junction proteins, increase claudin-1 expression, and improve permeability [121]
Crohn’s diseaseIncrease the insoluble fraction of claudin-1 and occludin proteins, prevent the tight junction proteins, and maintain the intercellular junction [122]
Short bowel syndromeProvide energy for enterocytes, enhance the transport of sodium and water in the ileum, and upregulate intracellular protein synthesis [123125]
Acute pancreatitisImprove lymphocyte proliferation, reduce proinflammatory cytokine, release C-reactive protein, and improve the nutritional status [126, 127]
CirrhoticIncrease blood ammonia [128]

Circulation system diseaseSickle cell diseaseRaise the NAD redox ratio within sickle cells and synthesize NAD and decrease endothelial cell adhesion in sickled red cells [129, 130]
Heart failureMaintain a positive nitrogen balance and activate the suppressed oxidative metabolism [131]

Locomotor system diseaseDuchenne muscular dystrophyInhibit whole-body protein degradation and stimulate insulin secretion [132, 133]

Systemic disordersCritically ill patientsMaintain high level of HSP70 [134]
SepsisIncrease immune response, donate nitrogen for many anabolic processes, and promote wound healing [135]
Type 2 diabetes mellitusDelay gastric emptying to lower glycemia, stimulate GLP-1 concentration, and increase circulating insulin
Low birthweight infantsAid in maturation of the intestinal tract enhances growth, development, and function of the immunologic system [136, 137]

Imaging diagnosisPET assay of tumorA potential tumor biomarker for targeted radiotracer imaging [138]

Regulatory effect on certain treatmentsRadiotherapy-induced toxicitiesProtective effects of diarrhea minimized dermatitis [139, 140]
Chemotherapy-induced toxicitiesTreat neuropathy induced by vincristine and decrease mucositis severity [141144]
Peripheral blood stem cell transplantationImprove CD3+ and CD4+lymphocyte recovery [145, 146]
Liver transplantationSynthesize glutathione and protect the liver graft against lipid peroxidation [147]
Cardiac surgeryEnhance cell survival, attenuate the systemic inflammatory response, and prevent intracellular lactate accumulation [148, 149]
Total knee replacement (TKA)Suppress the loss of muscle strength after TKA [150]