
Numerous brand names. XanGo is a dietary supplement that contains Garcinia mangostana and other fruit juices. But it is not synonymous with the mangosteen fruit.
Mangosteen is a plant native to Southeast Asia. The fruits are used in traditional medicine to treat skin infections, wounds, and diarrhea.
Recent studies have revealed that xanthones from the fruit hulls exhibit antibacterial (3), antifungal (4), and anti-inflammatory (5), cytototoxic (12) , aromatase-inhibitory (14) and anticancer (17) (18) properties and afford protection against doxorubicin-induced neurotoxicity (19).
Alpha-mangostin, a xanthone, inhibited growth of leukemia HL60 cells (1) (6), reduced the synthesis of prostaglandins (5), and prevented oxidative damage of LDL (7) in vitro. It was also shown to have renoprotective effects against cisplatin-induced nephrotoxocity (16). There is preliminary evidence that alpha- and gamma-mangostins act as histamine and serotonin receptor blockers (8), and inhibit HIV-1 protease (9). Garcinone E, another xanthone, exerts cytotoxic effects against hepatocellular carcinoma cells (10). Extract from the pericarp of mangosteen has antioxidant (13), antiproliferative and apoptotic effects (11).
Small studies in humans suggest its benefits as an adjunct for periodontal treatment (20) and for control of halitosis (21).
Mangosteen products may interfere with certain chemotherapeutic drugs. Long term use of mangosteen juice has been associated with lactic acidosis (15). Diabetic patients should use mangosteen juice with caution due to the sugar content.
Clinical trials are needed to determine the purported health benefits and anticancer potential of mangosteen.
The xanthones, alpha- and beta-mangostins, and garcinone B exhibit strong inhibitory effect against Mycobacterium tuberculosis in vitro (3). They also demonstrated aromatase inhibitory activity (14). Alpha-mangostin has been shown to inhibit growth of leukemia HL60 cells by inducing caspase-3-dependent apoptosis (1) (6), reduce the synthesis of prostaglandins by inhibiting the activities of COX-1 and COX-2 enzymes (5), and prevent oxidative damage of LDL by functioning as a free-radical scavenger (7). Alpha- and gamma-mangostins also antagonize the activities of histamine and serotonin by acting as receptor blockers (8). Garcinone E has cytotoxic effects against hepatocellular carcinoma cells (10). In vitro studies have also demonstrated that a crude methanolic extract from the pericarp of mangosteen has antiproliferative, antioxidative, and apoptotic effects against SKBR3 breast cancer cells (11).
Case Report: Severe lactic acidosis was reported following consumption of mangosteen juice daily for twelve months (15).
Chemotherapy: Mangosteen products have antioxidant effects (7) and may interfere with the action of anthracyclines, platinum compounds, and alkylating agents.
There are no clinical data available to support the beneficial effects of mangosteen in humans.
Bottom Line: Mangosteen has not been shown to treat cancer in humans.The fruits of mangosteen are used in traditional medicine in Southeast Asia to treat skin infections, wounds, and diarrhea. Laboratory studies have shown that compounds present in the fruits of mangosteen are effective against bacterial and fungal infections and can reduce inflammation. Other studies have shown that mangosteen can inhibit the growth of leukemia and breast cancer cells. There is also evidence that some compounds in mangosteen act as free-radical scavengers to prevent LDL (low density lipoprotein) damage. However, it is not known at the present time if the same effects occur in the human body.
Case Report: Severe lactic acidosis was reported following consumption of mangosteen juice daily for twelve months.