Five Pistacia species (P. vera, P. atlantica, P. terebinthus, P. khinjuk, and P. lentiscus): A Review of Their Traditional Uses, Phytochemistry, and Pharmacology
Table 3
Pharmacological activities of selected Pistacia species.
Pharmacological activity
Plant
Plant part
Assay
Extract/essential oil/isolated component
Dose or concentration
Observations
Ref.
Antioxidant
P. lentiscus
Fruits
In vitro DPPH method
Polyphenols: galic acid (GA) and 1,2,3,4,6 pentagalloyl-glucose (PGA)
1, 3, 10, 30, and 100 µg/mL
Dose dependent radical scavenging activity of GA (IC50: 2 µg/mL) and PGA (IC50: 1 µg/mL)
Superoxide anions scavenger at a concentration as low as 0.0625 mg/mL
P. atlantica subsp. mutica
Hull
FRAP test
The unsaponifiable matter (USM) of fruit’s hull oil
100 mg in 10 mL of n-hexane
Significant reducing power; the highest reducing power amongst the USM fractions belonged to the tocopherols and tocotrienols and linear and triterpenic alcohols respectively
(1) Reducing power of significantly higher than -tocopherol and BHT and nearly similar to BHA (2) The chelating activity of 1.0 mg/mL was nearly fourfold less than EDTA at 0.037 mg/mL and has slightly effective capacity for iron binding (3) 85% inhibition rate at 15 μg/mL. nearly similar to ascorbic acid and BHA (4) Higher antioxidant activity than -tocopherol and similar to BHA, BHT, and trolox (5) Concentration-dependent scavenging compared to BHA, BHT, and -tocopherol
(AFB1)-induced mutagenicity in S. typhimurium TA100 or TA98
Essential oil
0.3, 250, 500, 1000 µg/plate
In TA100: 76, 82.8, and 96.5%, mutagenic inhibition rate for 250, 500, and 1000 µg/plate, respectively; in TA98: 99 and 100% mutagenic inhibition rate with 250 and 500 µg/plate
50 µg/plate: 23% inhibition in TA100 and 52.2% in TA98; 300 and 600 µg/plate: 67.7 and 87.8% for TA100 and 58–76.8% for TA98
Flavonoid-enriched extract extracts
50, 300, 600 µg/plate
TA100: 47, 75.3, and 88.6% inhibition by 50, 300, and 600 µg/plate, respectively; TA98: 62.5, 77, and 93.5% inhibition by 50, 300, and 600 µg/plate, respectively
Sodium azide- induced mutagenicity in S. typhimurium TA1535 and TA100
Essential oil
1.5, 10, 15, 30 µg/Plate
TA100: 79, 83, and 94% inhibition by 10, 15, and 30 µg/plate, respectively; TA1535:, 62, 76, and 93% inhibition by 10, 15, and 30 µg/plate, respectively
Aqueous extract
1.5, 50, 300, 600 µg/plate
TA100: 92, 96, and 98% inhibition by 50, 300, and 600 µg, respectively; TA 1535: 62, 80, and 94% for the same concentrations
Flavonoid-enriched extract extracts
50, 300, 600 µg/plate
50 and 300 µg/plate: from 54 to 68% inhibition in TA1535 and from 84 to 93% in TA100
Anitmicrobial and antiviral
P. lentiscus
Leaf
Disc diffusion
Essential oil
0.03, 0.15, 0.62, 2.5, 10.0, 40.0 mg/mL
Noticeable activity against S. enteritidis (MIC: 30 µg/mL) and St. aureus (30 µg/mL); less important activity against S. typhimurium, (MIC: 150 µg/mL); No significant inhibitory activity towards Escherichia coli, Pseudomonas aeruginosa, and Enterococcus faecalis
Most active against S. typhimurium, (MIC: 4 μg/mL), significant inhibitory activity towards P. aeruginosa and S. enteritidis (MIC: 40 μg/mL), and no activity against S. aureus, E. coli, and Ent. faecalis up to 1000 μg/mL
TOF extract exhibited antibacterial activity only against S. typhimurium (MIC: 100 μg/mL)
Microdilution agar
Essential oil
ND
Activity against S. enteritidis, S. typhimurium, and S. aureus (MICs between 30 and 620 μg/mL). No effect on Ent. foecalis, P. aeruginosa, and E. coli up to 1000 μg/mL
P. lentiscus var. chia
Gum
Disc diffusion
Essential oil and its fractions and components
ND
Escherichia coli, Staphylococcus aureus, and Bacillus subtilis were resistant to -pinene. E. coli is resistant to -myrcene, S. aureus showed an intermediate response, and B. subtilis is sensitive to it. p-Cymene, -caryophyllene, methyl isoeugenol, limonene, -terpinene, and trans-anethole showed moderate antibacterial activity, and in some cases, the bacteria were resistant to them. E. coli and S. aureus were resistant to -pinene, slightly inhibited B. subtilis. Verbenone, R-terpineol, and linalool showed higher antibacterial activity than other components
The broadest average inhibition zones were for E. coli and S. aureus by (+)--terpineol and -linalool compared to the positive control (gentamicin 10 µg); significant antifungal activity against Candida albicans by MWR
4%, 2%, 1%, 0.5%, 0.25%, 0.125%, 0.063%, and 0.032% (v/v)
The most potent antimicrobial constituents were -linalool and -terpineol against E. coli and S. aureus. Significant antifungal activity of MWR, -linalool, (−)-verbenone, and (+)--terpineol against C. albicans
P. lentiscus
Gum
ND
Liquid mastic
2% liquid mastic
Activity against Porphyromonas gingivalis and Prevotella melaninogenica
In vivo administration of extract in infected mice with H. pylori
Total mastic extract without polymer (TMEWP)
180 µg/mL
Moderately reduced H. pylori colonization in the antrum and corpus of the mice stomach. Visible reduction in H. pylori colonization observed in histopathology evaluations
P. lentiscus, P. atlantica (sp. cabulica, kurdica, and mutica)
Gum
Broth microdilution
Isolated components of the acidic fractions of the gum
ND
The MIC values for the components ranged from 0.1 to 50 μg/mL against the strains of H. pylori and all Gram-negative bacteria including Escherichia coli, Salmonella typhimurium, Serratia marcescens, Pseudomonas aeruginosa, Alcaligenes faecalis, Enterobacter aerogenes Pseudomonas fluorescens, Porphyromonas gingivalis, and Proteus vulgaris and ranged from 2 to 100 μg/mL against Gram-positive bacteria including Bacillus cereus, Staphylococcus aureus, Streptococcus faecalis, Staphylococcus epidermidis, Bacillus subtilis, and Corynebacterium sp
Methanol, ethanol, ethanol + water, and water extracts
25, 50 and 75 mg/mL
Dose dependent activity against E. coli, Staphylococcus aureus, and Staphylococcus epidermidis; less activity in comparison with gentamicin (10 μg/disk), tobramycin (10 μg/disk), and kanamycin (30 μg/disk)
Klebsiella pneumoniae and Escherichia coli were not sensitive to the extract. Candida albicans, Staphylococcus aureus, and Salmonella typhi showed a sensitizing effect at the 5 μL and a very significant effect at 10 μL
Delayed not block fungal growth in Fomitopsis pinicola and Penicillium sp. by volatile constituents of galls; volatile constituents of leaf inhibited only the growth of Penicillium sp
Gum
Agar disc diffusion
Essential oil
10−1, 10−2, 10−3, and 10−4μg/mL
Most active against E. coli followed by S. aureus and S. pyogenes.
Activity of essential oil against all tested bacteria including Bacillus subtilis, Salmonella typhi, Escherichia coli, Staphylococcus epidermidis, and Pseudomonas aeruginosa; activity of nonpolar smoke fraction on all of strains especially on S. dysenteriae, E. coli, B. subtilis, and P. aeruginosa
Chloroform, ethyl acetate, ethyl alcohol, and diethyl ether extracts
ND
Activity against bacteria including Bacillus subtilis, Enterococcus faecalis, Staphylococcus aureus Staphylococcus epidermidis, Escherichia coli, and Klebsiella pneumoniae (MIC = 0.02–0.5 mg/mL) and fungi including Candida albicans and Saccharomyces cerevisiae (MIC = 0.06–0.4 mg/mL). Chloroform extract inhibited growth of fungi more than others
Hydroalcoholic extract of fruits derm on E. coli, water extract on S. epidermidis, and methanolic extract on S. aureus (all in 75 mg/mL) had higher antibacterial activity than tobramycin and same as gentamicin and kanamycin
4-week pilot study on 10 patients with Crohn’s disease and 8 controls
Capsules of fine powder
2.22 g/day (6 caps/d, 0.37 g/cap)
Crohn’s disease activity index and plasma inflammatory mediators such as C-reactive protein, interleukin-6 (IL-6) without any side effects; immunomodulatory effect by tumor necrosis factor-alpha (TNF-) and ↑macrophage migration inhibitory factor
1, 5, 10, 12.5, 25, 50, and 100 mg/mL 125, 250, and 500 mg/kg
In vitro: significant dose dependent dual inhibition of -amylase and -glucosidase comparable to acarbose In vivo: significant acute postprandial antihyperglycemic activity comparable to metformin and glipizide and improved glucose intolerance in oral starch tolerance test
0–200 μg/mL (solid mastic) or 0–2 (v/v)% of liquid mastic
The most cytotoxic effect against promyelocytic leukemia HL-60 among 13 human cell types; inhibition of natural apoptosis of oral polymorphonuclear leukocytes
The human prostate cancer cell lines (PC-3), MTT assay, gene assay, RT-PCR, and Western blotting
ND
10, 20, and 30 µg/mL
Inhibited proliferation and blocked the cell cycle progression in androgen-independent prostate cancer PC-3 cells by suppressing NF-κB activity and the NF-κB signal pathway
A time-dependent modification in the expression of 925 genes and phenomena in Lewis lung carcinoma cells by its antiproliferative, proapoptotic, and anti-inflammatory activities
45 mg/kg intraperitoneally, 3 times a week for 3 weeks
Significant inhibition on tumor growth without signs of toxicity related to apoptosis induction, reduced neovascularization, and inhibiting chemokine expression
Cells line and the in vivo chicken embryo CAM angiogenesis model
Essential oil
0.01–0.1% v/v
Antiproliferative and proapoptotic effect on K562 human leukemia cells; inhibited the release of vascular endothelial growth factor from K562 and B16 mouse melanoma cell; concentration-dependent inhibition of endothelial cell proliferation without affecting cell survival; significant decrease of microvessel formation
In vitro cytotoxic activity against human cell lines
Crud methanolic extract fractionated against petroleum ether, chloroform, and n-butanol
ND
Moderate cytotoxic effect against breast cancer cell line (MCF7), hepatocellular carcinoma cell line (HEPG2), cervix cancer cell line (HELA), and normal melanocytes (HFB4); n-hexane fraction showed strong cytotoxic effect (IC50: 3.15–4.17 µg/mL) against all of the tested cell lines, except for MCF7 (IC50: 13.5 µg/mL)
Hepatic fibrosis, an inflammatory response, mild cholestasis, and depletion of reduced glutathione associated with an increase in its oxidized form for five weeks administration in healthy rats; in thioacetamide-induced rat liver lesions, it aggravated the inflammatory, fibrotic, and glutathione depleting responses without affecting the extent of lipid peroxidation
Serum total cholesterol, LDL, total cholesterol/HDL ratio, lipoprotein, apolipoprotein A-1, apolipoprotein B, AST, ALP, and gamma-GT were reduced in human subjects
Mercury induced toxicity in rabbits caused increase in the level of ALP, AST, and urea serum, while it was reported that P. lentiscus oil-treated rabbits showed none of those changes
Beneficial effects on HDL, LDL, and aortic intimal thickness. The methanolic extract additionally showed an antioxidant activity and remarkable decrease in aortic surface lesions
Ellman’s colorimetric method and the modified dopachrome method
Ethyl acetate and methanol extracts
25, 50, 100, and 200 µg/mL
No inhibitory activity against AChE and tyrosinase while selectively inhibited butyrylcholinesterase (BChE) at moderate levels (below 50%) at the tested concentrations