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Effect of Ganoderma lucidum on serum lipid profiles: A systematic review and meta-analysis on animal studies.

ABSTRACT:

Background

Ganoderma lucidum (G. lucidum) is one of the most popular edible mushrooms in the world which has various pharmacological components. Recently, some animal studies have investigated the lipid-lowering effects of G. lucidum and have shown contradictory results. This study aims to systematically review the effects of G. lucidum on lipid parameters in animal studies.

Materials and methods

A systematic search was conducted in the Medline database (PubMed), Scopus, Web of Science, Cochrane Library, and Google Scholar up to the end of January 2022. Only animal studies and all eligible randomized controlled trials (RCTs), including cluster RCTs and randomized crossover trials were included. The English language studies that assessed the effects of G. lucidum on lipid profiles including total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and very low-density lipoproteins (VLDL) were selected.

Results

Among 358 studies, 49 articles were included in the systematic review and meta-analysis. G. lucidum consumption was associated with decreased levels of TG (standardized mean difference [SMD] = -1.52, 95% CI: -1.79, -1.24), TC (SMD = -1.51, 95% CI: -1.75, -1.27), LDL-C (SMD = -2.03, 95% CI: -2.37, -1.69) and VLDL (SMD =-1.06, 95% CI: -1.638, -0.482). Furthermore, G. lucidum consumption was associated with increased levels of HDL-C (SMD = 1.03, 95% CI: 0.73, 1.33).

Conclusion

G. lucidum has favorable effects on TG, TC, LDL-C, HDL-C, and VLDL. Different doses of G. lucidum have various degrees of effectiveness on lipid profiles.

SUBMITTER: Aref M

PROVIDER: S-EPMC10729684 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Effect of <i>Ganoderma lucidum</i> on serum lipid profiles: A systematic review and meta-analysis on animal studies.

Aref Maryam M Khoshhali Mehri M Ghasemi Pouria P Adeli Shaghayegh S Heidari-Beni Motahar M Kelishadi Roya R

Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences 20230929

<h4>Background</h4><i>Ganoderma lucidum</i> (<i>G. lucidum</i>) is one of the most popular edible mushrooms in the world which has various pharmacological components. Recently, some animal studies have investigated the lipid-lowering effects of <i>G. lucidum</i> and have shown contradictory results. This study aims to systematically review the effects of <i>G. lucidum</i> on lipid parameters in animal studies.<h4>Materials and methods</h4>A systematic search was conducted in the Medline database ...[more]

PMID: 38116485

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Project description:BackgroundThe fruiting body of Ganoderma lucidum has been used as a traditional herbal medicine for many years. However, to the date, there is no detailed study for describing the effect of G. lucidum spores on oxidative stress, blood glucose level and lipid compositions in animal models of type 2 diabetic rats, in particular the effect on the gene expression profiles associated with glucose and lipid metabolisms.MethodsG. lucidum spores powder (GLSP) with a shell-broken rate >99.9 % was used. Adult male Sprague-Dawley rats were randomly divided into three groups (n = 8/group). Group 1: Normal control, normal rats with ordinary feed; Group 2: Model control, diabetic rats with ordinary feed without intervention; Group 3: GLSP, diabetic rats with ordinary feed, an intervention group utilizing GLSP of 1 g per day by oral gavages for 4 consecutive weeks. Type 2 diabetic rats were obtained by streptozocin (STZ) injection. The changes in the levels of glucose, triglycerides, total cholesterol and HDL-cholesterol in blood samples were analyzed after GLSP intervention. Meanwhile, gene expressions associated with the possible molecular mechanism of GLSP regulation were also investigated using a quantitative RT-PCR.ResultsThe reduction of blood glucose level occurred within the first 2 weeks of GLSP intervention and the lipid synthesis in the diabetic rats of GLSP group was significantly decreased at 4 weeks compared to the model control group. Furthermore, it was also found that GLSP intervention greatly attenuated the level of oxidative stress in the diabetic rats. Quantitative RT-PCR analysis showed up-regulation of lipid metabolism related genes (Acox1, ACC, Insig-1 and Insig-2) and glycogen synthesis related genes (GS2 and GYG1) in GLSP group compared to model control group. Additionally, there were no significant changes in the expression of other genes, such as SREBP-1, Acly, Fas, Fads1, Gpam, Dgat1, PEPCK and G6PC1.ConclusionThis study might indicate that GLSP consumption could provide a beneficial effect in terms of lowering the blood glucose levels by promoting glycogen synthesis and inhibiting gluconeogenesis. Meanwhile, GLSP treatment was also associated with the improvement of blood lipid compositions through the regulation of cholesterol homeostasis in the type 2 diabetic rats.