Anti-obesity effect of garlic oil on obese rats via Shenque point administration.

Published on Mar 1, 2019in Journal of Ethnopharmacology3.69
· DOI :10.1016/J.JEP.2018.11.030
Yumeng Zhang4
Estimated H-index: 4
(SPU: Shenyang Pharmaceutical University),
Lei Xu2
Estimated H-index: 2
(Yanbian University)
+ 2 AuthorsYuqing Zhao16
Estimated H-index: 16
(SPU: Shenyang Pharmaceutical University)
Abstract Ethnopharmacological relevance Shenque is an acupoint located in the umbilicus and connected with the meridians. Thus, acupoint herbs applied at Shenque plays a pivotal role in the Chinese traditional medicine due to its sensitivity, permeability, and absorption. Many studies reported the use of Shenque point as a successful therapeutic approach. However, the effect of garlic oil (GO) applied at Shenque point to combat obesity is unmet. Consequently, we investigated the potential benefit of GO applied at Shenque point against obesity. Aim of the study To investigate GO effects on obese rats applied at Shenque acupoint and orally administered, and to identify the chemical constituents of GO. Materials and methods Rats were randomly divided into 2 groups: naive and model group. The model group rats were fed with a high fat diet for 7 weeks to induce obesity, and then they were randomly divided into 5 groups: model, GO Shenque point treated groups (25, 50 and 100 mg/kg/day) and oral group (50 mg/kg/day). Biochemical indexes in the serum, weight of adipose tissue and liver histopathology were evaluated after 6 weeks of GO treatment using a Hitachi 7080 analyzer (Hitachi, Japan). Moreover, GO chemical components were detected by gas chromatography-mass spectrometer (GC-MS). Results Compared with the naive rats, model rats exhibited higher body and liver weight, increased fat deposition, higher triglyceride concentration and alveolar development. In contrast, GO Shenque point treated groups showed a substantial decrease in body weight (P = 0.358, 0.028, 0.031, respectively), fat mass, cholesterol (P = 0.004, 0.041, 0.001, respectively), triglyceride (P = 0.001, 0.001, 0.001, respectively), and low density lipoprotein concentrations (P = 0.001, 0.000, 0.001, respectively). The effect was more remarkable than the GO orally administered. In addition, twelve GO organosulfur compounds were identified by GC-MS and diallyl trisulfide (DATS) was detected as the main compound, with a 32.08% concentration. Conclusions These findings demonstrated that GO had a significant anti-obesity effect on obese rats by reducing the body weight and protecting the liver from damage, and the effect of Shenque point treatment was better than oral administration, suggesting that GO was an effective weight-loss drug and Shenque point administration might be considered as a new anti-obesity approach.
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