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Oh MR, Jung SJ, Chae SW, Park BH, Lee SO. Lycium chinense Miller fruit extract lowers liver enzyme levels in subjects with mild hepatic dysfunction: a randomized, double-blind, placebo-controlled clinical trial. Eur J Nutr 2023; 62:1415-1425. [PMID: 36629892 DOI: 10.1007/s00394-022-03075-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 12/12/2022] [Indexed: 01/12/2023]
Abstract
PURPOSE In our previous study, we showed that Lycium chinense Miller fruit extract (LFE) exerted hepatoprotective effects in mice. In the current study, we examined the effect of LFE on liver enzyme levels in subjects with mild hepatic dysfunction. METHODS A total of 90 subjects, aged 19 to 70 years old, with abnormal alanine aminotransferase (ALT) levels, were randomly placed into either an LFE (n = 45) treatment group or a placebo group (n = 45). During the 12-week clinical trial, subjects in each group received either LFE or placebo capsules, and were instructed to take four tablets per day (1760 mg/day). The primary outcome of the study was the changes of ALT and γ-glutamyltransferase (GGT) levels in each subject. The safety of LFE supplementation was assessed and adverse events were recorded. RESULTS LFE supplementation for 12 weeks resulted in a significant reduction of ALT (P = 0.0498) and GGT (P = 0.0368) levels in comparison to the placebo. No clinically significant changes were observed in any safety parameters. CONCLUSION These results suggest that LFE can be applied to subjects with mild hepatic dysfunction with no possible side effects. TRIAL REGISTRATION This study was registered at the Clinical Research Information Service (CRIS) as no. KCT0003985.
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Affiliation(s)
- Mi-Ra Oh
- Clinical Trial Center for Functional Foods, Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, Republic of Korea
| | - Su-Jin Jung
- Clinical Trial Center for Functional Foods, Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, Republic of Korea
- Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, Republic of Korea
| | - Soo-Wan Chae
- Clinical Trial Center for Functional Foods, Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, Republic of Korea
- Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, Republic of Korea
| | - Byung-Hyun Park
- Department of Biochemistry and Research Institute for Endocrine Sciences, Jeonbuk National University Medical School, Jeonju, Jeonbuk, 54896, Republic of Korea.
| | - Seung-Ok Lee
- Clinical Trial Center for Functional Foods, Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, Republic of Korea.
- Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Jeonbuk, 54907, Republic of Korea.
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, Jeonbuk, 54896, Republic of Korea.
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Ulbricht C, Bryan JK, Costa D, Culwell S, Giese N, Isaac R, Nummy K, Pham T, Rapp C, Rusie E, Weissner W, Windsor RC, Woods J, Zhou S. An Evidence-Based Systematic Review of Goji (Lycium spp.) by the Natural Standard Research Collaboration. J Diet Suppl 2014; 12:184-240. [PMID: 24806435 DOI: 10.3109/19390211.2014.904128] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An evidence-based systematic review of goji (Lycium spp.) by the Natural Standard Research Collaboration consolidates the safety and efficacy data available in the scientific literature using a validated, reproducible grading rationale. This article includes written and statistical analysis of clinical trials, plus a compilation of expert opinion, folkloric precedent, history, pharmacology, kinetics/dynamics, interactions, adverse effects, toxicology, and dosing.
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Tang T, He B. Treatment of d-galactose induced mouse aging with Lycium barbarum polysaccharides and its mechanism study. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2013; 10:12-7. [PMID: 24146495 DOI: 10.4314/ajtcam.v10i4.3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We evaluated the effects of Lycium barbarum polysaccharides LBP) on D-galactose aging model mouse, and explored its possible mechanism. Kunming mice were randomly divided into the control group, the model group, the high-dose LBP group, and the low-dose LBP group. Except the control group, D-galactose was used for modelling. The drug was administrated when modelling. Mouse behavioural, learning and memory changes were observed, and the contents of lipid peroxidation (LPO), lipofuscin (LF) and monoamine oxidase B (MAO-B) in mouse brain tissue and the weight of immune organs were measured after 6 weeks. Compared with the control group, mouse weight gain in the model group reduced significantly. Compared with model group, after mice drank LBP, the times of electric shock was less than aging mice (in which, the high-dose LBP group, P<0.05), and electric shock incubation period was longer (P<0.01). On Day 45 after modelling and drug administration, the contents of LPO, LF and MAO-B in mouse brain tissue in the model group increased significantly, while those in the drug administration groups decreased significantly. The thymus index in the aging model group decreased significantly; the thymus index and the spleen index in the high-dose LBP group and the low-dose LBP group rebounded significantly (P<0.01). We concluded that LBP has an anti-aging effect on D-galactose induced aging model mouse, and its mechanism may be related with the alleviation of glucose metabolism disorder and the resistance of the generation of lipid peroxide and other substances, which damage cell membrane lipid.
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Affiliation(s)
- Tao Tang
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
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Niu Y, Nan Y, Yuan L, Wang R. Study on antibacterial effect of medlar and hawthorn compound extract in vitro. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2013; 10:567-73. [PMID: 24146490 DOI: 10.4314/ajtcam.v10i3.27] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This paper evaluated the antibacterial effect of medlar and hawthorn compound extract in vitro. Water extract method and ethanol extraction method was adopted to prepare the compound extracts, and disc diffusion method and improved test tube doubling dilution method were used to conduct the antibacterial test on the two common pathogenic bacteria, Staphylococcus aureus and Klebsiella pneumonia, in vitro. The results showed that medlar and hawthorn compound extract was moderately sensitive to Staphylococcus aureus, while its inhibiting effect on Klebsiella pneumoniae was particularly significant, moreover, the antibacterial effect of ethanol extract was better than water extract. Medlar and hawthorn compounds had good antibacterial effect on the two pathogenic bacteria.
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Affiliation(s)
- Yang Niu
- Traditional Chinese Medicine college of Ningxia Medical University, Yinchuan City, Ningxia Province. 750004, PR China
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Effects of Lycium barbarum aqueous and ethanol extracts on high-fat-diet induced oxidative stress in rat liver tissue. Molecules 2011; 16:9116-28. [PMID: 22045040 PMCID: PMC6264384 DOI: 10.3390/molecules16119116] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Accepted: 10/26/2011] [Indexed: 11/17/2022] Open
Abstract
This study evaluated the protective effects of aqueous extract of Lycium barbarum (LBAE) and ethanol extract of Lycium barbarum (LBEE) on blood lipid levels, serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) activities and liver tissue antioxidant enzyme activities in rats fed a high fat diet (HF). The rats were randomly divided into seven groups of ten rats each and fed a different diet for eight weeks as follows: One group (NC group) was fed a standard diet, one group was fed a high-fat diet (HF group), one group was fed a high-fat diet and orally fed with 20 mg/kg b.w. simvastatin (HF + simvastatin group), and the other group was fed the high fat diet and orally fed with 50 mg/kg b.w. or 100 mg/kg b.w. LBAE (HF + LBAE), or 50 mg/kg b.w. or 100 mg/kg b.w. LBEE (HF + LBEE), respectively. After eight weeks, the HF diet caused deleterious metabolic effects. Rats fed the HF diet alone showed increased hepatocellular enzyme activities in plasma, a significant decline in antioxidant enzyme activities, and elevated liver lipid peroxidation indices. LBAE and LBEE administration significantly reduced liver damage and oxidative changes, and brought back the antioxidants and lipids towards normal levels. These data suggest that these antioxidants protect against toxicity parameters in HF rats.
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Yao X, Peng Y, Xu LJ, Li L, Wu QL, Xiao PG. Phytochemical and Biological Studies of Lycium Medicinal Plants. Chem Biodivers 2011; 8:976-1010. [DOI: 10.1002/cbdv.201000018] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wu PS, Wu SJ, Tsai YH, Lin YH, Chao JCJ. Hot Water Extracted Lycium Barbarumand Rehmannia GlutinosaInhibit Liver Inflammation and Fibrosis in Rats. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2011; 39:1173-1191. [DOI: 10.1142/s0192415x11009482] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Polysaccharide-rich Lycium barbarum and Rehmannia glutinosa have been considered to have immune-modulating activity. This study investigated the effects of water extracted Lycium barbarum and Rehmannia glutinosa (HE) on carbon tetrachloride ( CCl4)-induced liver injury in rats. Male Sprague-Dawley rats were randomly divided into: normal diet + peritoneal injection of olive oil (control), normal diet + CCl4injection ( CCl4), 1 × HE (0.05% HE for each) + CCl4(1 × HE), and 3 × HE (0.15% HE for each) + CCl4(3 × HE) groups. Rats were injected with 40% CCl4at a dose of 0.75 ml/kg body weight once a week for seven weeks, one week after herbal extract treatment. After eight week herbal extract treatment, pathohistological examination showed that both 1× and 3 × HE treatments diminished necrotic hepatocytes, chemoattraction of inflammatory cells, and liver fibrosis. Both 1× and 3 × HE treatments decreased plasma alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities, and reduced hepatic levels of pro-inflammatory cytokines — tumor necrosis factor-α and interleukin-1β — compared to CCl4treatment alone. The 1 × HE treatment increased hepatic anti-inflammatory cytokine IL-10 levels. Both the 1× and 3 × HE treatments suppressed liver fibrosis biomarkers — transforming growth factor-β1 and hydroxyproline. Therefore, treatment with water extracted Lycium barbarum and Rehmannia glutinosa (0.05% and 0.15% for each) for eight weeks protects against necrotic damage, indicated by decreases in plasma ALT and AST activities, and suppresses liver fibrosis by down-regulation of liver inflammation in rats with CCl4-induced liver injury.
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Affiliation(s)
- Po-Shan Wu
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110, Taiwan
- Department of Food and Nutrition, Taipei Veterans General Hospital, Taipei 112, Taiwan
| | - Shu-Ju Wu
- Department of Nutrition and Health Sciences, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan
| | - Ya-Hui Tsai
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110, Taiwan
- School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Yun-Ho Lin
- Department of Pathology, School of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Jane C.-J. Chao
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110, Taiwan
- Nutrition Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
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Zhang R, Kang KA, Piao MJ, Kim KC, Kim AD, Chae S, Park JS, Youn UJ, Hyun JW. Cytoprotective effect of the fruits of Lycium chinense Miller against oxidative stress-induced hepatotoxicity. JOURNAL OF ETHNOPHARMACOLOGY 2010; 130:299-306. [PMID: 20546868 DOI: 10.1016/j.jep.2010.05.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 04/26/2010] [Accepted: 05/05/2010] [Indexed: 05/29/2023]
Abstract
AIM OF THE STUDY Fruits of Lycium chinense Miller (Solanaceae), distributed in northeast Asia, have gained attraction for their hepatoprotective role in traditional oriental medicine. The excessive production of reactive oxygen species (ROS) is hazardous for living organisms and damage major cellular constituents such as DNA, lipid, and protein. The cytoprotective effect of Lycium chinense fruits (Lycium extract) was assessed against H(2)O(2)-induced Chang liver cell damage. MATERIALS AND METHODS The effect of Lycium extract against H(2)O(2)-induced cell death was determined by the MTT assay. Radical scavenging activity was determined through the assessments of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals, intracellular ROS, hydroxyl radicals, and superoxide. The inductions of antioxidant enzymes were determined via their protein expressions and activities. DNA damage was measured using comet assay and expression of phospho-histone H2A.X. Lipid peroxidation was measured using 8-isoprostane level and fluorescent probe. Protein modification was measured using protein carbonyl moiety. RESULTS AND CONCLUSION Lycium extract scavenged the DPPH free radicals, intracellular ROS, hydroxyl radicals, and superoxide. Lycium extract recovered activities of catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) decreased by H(2)O(2). Lycium extract decreased DNA damage, lipid peroxidation and protein carbonyl values increased by H(2)O(2) exposure. In addition, Lycium extract increased the cell viability of Chang liver cells exposed to H(2)O(2) via inhibition of apoptosis. These results show that Lycium extract protected Chang liver cells against oxidative stressed cell damage by H(2)O(2) via scavenging ROS and enhancing antioxidant enzyme activity.
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Affiliation(s)
- Rui Zhang
- School of Medicine, Jeju National University, Jeju-si, Republic of Korea
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Kim SH, Lee HS, Lee S, Cho J, Ze K, Sung J, Kim YC. Mycelial culture of Phellinus linteus protects primary cultured rat hepatocytes against hepatotoxins. JOURNAL OF ETHNOPHARMACOLOGY 2004; 95:367-372. [PMID: 15507362 DOI: 10.1016/j.jep.2004.08.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2004] [Revised: 07/20/2004] [Accepted: 08/12/2004] [Indexed: 05/24/2023]
Abstract
Hepatoprotective activity of Phellinus linteus was studied using H(2)O(2)- or galactosamine-injured primary cultures of rat hepatocytes as screening systems. The methanolic extract of the mycelial culture of Phellinus linteus significantly protected against hepatotoxins-induced toxicity in primary cultured rat hepatocytes as seen from the decreased level of glutamic pyruvic transaminase released from the injured hepatocytes. The methanolic extract of the mycelial culture of Phellinus linteus was subsequently fractionated with n-hexane, ethyl acetate, n-butanol and water. Among these fractions, 100 microg/mL of the ethyl acetate fraction was the most active one. The relative protections were 68.9 +/- 5.3% in H(2)O(2)-injured hepatocytes and 46.8 +/- 3.9% in galactosamine-injured hepatocytes, respectively. The ethyl acetate fraction appeared to maintain the glutathione level which was decreased by the treatment of H(2)O(2) or galactosamine and restored the level of RNA synthesis more than two times compared to galactosamine-injured hepatocytes. These results suggest that the ethyl acetate fraction of the mycelial culture of Phellinus linteus protects hepatocytes from H(2)O(2)- or galactosamine-induced injury by maintaining hepatic glutathione level and RNA synthesis as well.
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Affiliation(s)
- S H Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, San 56-1, Shillim-Dong, Seoul 151-742, Republic of Korea
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