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Shaik Mohamed Sayed UF, Moshawih S, Goh HP, Kifli N, Gupta G, Singh SK, Chellappan DK, Dua K, Hermansyah A, Ser HL, Ming LC, Goh BH. Natural products as novel anti-obesity agents: insights into mechanisms of action and potential for therapeutic management. Front Pharmacol 2023; 14:1182937. [PMID: 37408757 PMCID: PMC10318930 DOI: 10.3389/fphar.2023.1182937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/06/2023] [Indexed: 07/07/2023] Open
Abstract
Obesity affects more than 10% of the adult population globally. Despite the introduction of diverse medications aimed at combating fat accumulation and obesity, a significant number of these pharmaceutical interventions are linked to substantial occurrences of severe adverse events, occasionally leading to their withdrawal from the market. Natural products serve as attractive sources for anti-obesity agents as many of them can alter the host metabolic processes and maintain glucose homeostasis via metabolic and thermogenic stimulation, appetite regulation, pancreatic lipase and amylase inhibition, insulin sensitivity enhancing, adipogenesis inhibition and adipocyte apoptosis induction. In this review, we shed light on the biological processes that control energy balance and thermogenesis as well as metabolic pathways in white adipose tissue browning, we also highlight the anti-obesity potential of natural products with their mechanism of action. Based on previous findings, the crucial proteins and molecular pathways involved in adipose tissue browning and lipolysis induction are uncoupling protein-1, PR domain containing 16, and peroxisome proliferator-activated receptor-γ in addition to Sirtuin-1 and AMP-activated protein kinase pathway. Given that some phytochemicals can also lower proinflammatory substances like TNF-α, IL-6, and IL-1 secreted from adipose tissue and change the production of adipokines like leptin and adiponectin, which are important regulators of body weight, natural products represent a treasure trove for anti-obesity agents. In conclusion, conducting comprehensive research on natural products holds the potential to accelerate the development of an improved obesity management strategy characterized by heightened efficacy and reduced incidence of side effects.
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Affiliation(s)
| | - Said Moshawih
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Hui Poh Goh
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Nurolaini Kifli
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jaipur, India
- Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College and Hospitals, Saveetha University, Chennai, India
| | - Sachin Kumar Singh
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, Australia
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, Australia
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, Australia
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Andi Hermansyah
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas AirlanggaSurabaya, Indonesia
| | - Hooi Leng Ser
- School of Medical and Life Sciences, Sunway University, Sunway, Malaysia
| | - Long Chiau Ming
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas AirlanggaSurabaya, Indonesia
- School of Medical and Life Sciences, Sunway University, Sunway, Malaysia
| | - Bey Hing Goh
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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Mohammed RA, Danda AK, Kotakadi SM, Nannepaga JS. Anti-obesity Effect of Bioengineered Silver Nanoparticles Synthesized from Persea americana on Obese Albino Rats. Pharm Nanotechnol 2023; 11:433-446. [PMID: 37106516 DOI: 10.2174/2211738511666230427145944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/28/2022] [Accepted: 01/09/2023] [Indexed: 04/29/2023]
Abstract
BACKGROUND Obesity is an immoderate or abnormal accretion of fat or adipose tissue in the body that is prone to damage the health of mankind. Persea americana (Avocados) is a nutritious fruit known for its several health benefits. The current research was planned to evaluate the anti-obesity activity of bioengineered Silver Nanoparticles (AgNPs) against a high-fat diet (HFD) treated obese albino rats. METHODS AgNPs were synthesized and characterized for the Phytochemical constituents, UV-vis Spectroscopy, FTIR, SEM and XRD. Furthermore, the lipid profile in serum, biochemical parameters and histopathological changes in tissues of albino rats were determined. RESULTS The present study revealed the presence of tannins, flavonoids, steroids and saponins, carbohydrates, alkaloids, phenols and glycosides. The peak was disclosed at 402 nm in UV-vis spectroscopy, confirming the synthesis of AgNPs. FTIR analysis showed two peaks at 3332.25 cm-1 which correspond to the O-H stretch of the carboxylic acid band, and 1636.40 cm-1 represents the N-H stretch of the amide of proteins, respectively. This result confirms their contribution to the capping and stabilization of AgNPs. The XRD results confirm the crystalline nature of AgNPs, and SEM results indicated that the synthesized AgNPs were spherical. Further, the results of the current study showed the improved lipid profile and biochemical parameters in rats supplemented with methanolic pulp extract of Persea americana AgNPs when compared with other experimental groups. The histopathological findings displayed improved results with reduced hepatocyte degradation under the influence of AgNPs treatment. CONCLUSION All the experimental evidence indicated the possible anti-obesity effect of silver nanoparticles synthesized from the methanolic pulp extract of Persea americana.
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Affiliation(s)
- Reshma Anjum Mohammed
- Department of Biotechnology, Sri Padmavati Mahila Visvavidyalayam (Women's University), Tirupati, 517 502, Andhra, India
| | - Aruna Kumari Danda
- Department of Zoology, Government Degree College, Anantapur, 515001, Andhra Pradesh, India
| | - Sai Manogna Kotakadi
- Department of Biotechnology, Sri Padmavati Mahila Visvavidyalayam (Women's University), Tirupati, 517 502, Andhra, India
| | - John Sushma Nannepaga
- Department of Biotechnology, Sri Padmavati Mahila Visvavidyalayam (Women's University), Tirupati, 517 502, Andhra, India
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Anti-Obesity Effect of DKB-117 through the Inhibition of Pancreatic Lipase and α-Amylase Activity. Nutrients 2020; 12:nu12103053. [PMID: 33036193 PMCID: PMC7600053 DOI: 10.3390/nu12103053] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/29/2020] [Accepted: 10/02/2020] [Indexed: 01/08/2023] Open
Abstract
This study sought to evaluate the effects of Phaseolus multiflorus var. albus Bailey extract (PM extract) and Pleurotus eryngii var. ferulae extract (PF extract) on the inhibition of digestive enzymes and to confirm the anti-obesity effect of DKB-117 (a mixture of PM extract and PF extract) in digestive enzyme inhibition in a mouse model of obesity induced by a high-fat diet. In in vitro studies, PM extract and PF extract have increased dose-dependent inhibitory activity on α-amylase (Inhibitory concentration (IC50 value: 6.13 mg/mL)) and pancreatic lipase (IC50 value; 1.68 mg/mL), respectively. High-fat diet-induced obese mice were orally administered DKB-117 extracts at concentrations of 100, 200, and 300 mg/kg/day, while a positive control group was given orlistat (pancreatic lipase inhibitor) and Garcinia cambogia (inhibiting the enzymes needed to synthesize carbohydrates into fat) at concentrations of 40 and 200 mg/kg/day, respectively, for eight weeks. As a result, body weight, fat mass (total fat mass, abdominal fat, and subcutaneous fat) detected with microcomputed tomography, fat mass (abdominal fat and inguinal fat) after an autopsy, and liver triglyceride levels were decreased significantly in the DKB-117 (300 mg/kg/day) group compared to those in the HFD control group. Additionally, we obtained results indicating that the presence of carbohydrates was found more in the DKB-117-300 (300 mg/kg/day) group than in the HFD control group. These data clearly show that DKB-117 extracts are expected to have an anti-obesity effect through a complex mechanism that promotes carbohydrate release through the inhibition of carbohydrate-degrading enzymes while blocking lipid absorption through lipase inhibition.
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Wu W, Liu L, Zhu H, Sun Y, Wu Y, Liao H, Gui Y, Li L, Liu L, Sun F, Lin H. Butyrolactone-I, an efficient α-glucosidase inhibitor, improves type 2 diabetes with potent TNF-α-lowering properties through modulating gut microbiota in db/db mice. FASEB J 2019; 33:12616-12629. [PMID: 31450982 DOI: 10.1096/fj.201901061r] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The aim of this study was to evaluate the effects of butyrolactone-I (A6) on type 2 diabetes (T2D) in db/db mice because A6 was found to inhibit α-glucosidase activities and TNF-α release, which were associated with improving T2D. Male db/db mice were divided into 6 groups and given an equivalent volume of olive oil, acarbose, or different doses of A6 for 4 wk (n = 8/group). In this study, 11 butenolide derivatives were screened for their α-glucosidase and TNF-α suppressive activity in vitro. A6, an efficient α-glucosidase inhibitor, exerts hypoglycemic and multiple activities in reducing weight, improving glucose tolerance and insulin resistance, increasing short-chain fatty acid (SCFA) levels, activating SCFA-induced increases in glucagon-like peptide 1 and peroxisome proliferator-activated receptor-γ expression, enhancing intestinal mucosal barrier function and mitigating endoxemia in db/db mice. These effects may result from mediation of gut microbiota by A6. Meanwhile, A6, with potent TNF-α-lowering properties, was demonstrated to have multiple salutary effects with excellent structural stability and long-term safety in vivo. A6, an effective α-glucosidase inhibitor with high security and stability, exerted potent antidiabetic effects in vivo. Furthermore, the modulation of gut microbiota of A6 was demonstrated to be one of the mechanisms contributing to anti-inflammation properties and improving endoxemia. Our work confirms that the compound A6 is a prospective drug candidate for T2D.-Wu, W., Liu, L., Zhu, H., Sun, Y., Wu, Y., Liao, H., Gui, Y., Li, L., Liu, L., Sun, F., Lin, H. Butyrolactone-I, an efficient α-glucosidase inhibitor, improves type 2 diabetes with potent TNF-α-lowering properties through modulating gut microbiota in db/db mice.
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Affiliation(s)
- Wei Wu
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Liyun Liu
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Hongrui Zhu
- School of Life Sciences and Biopharmaceutical Sciences, Shenyang Pharmaceutical University, Liaoning, China
| | - Yating Sun
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ying Wu
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Hongze Liao
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yuhan Gui
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Li
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Liu
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Fan Sun
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Houwen Lin
- State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, Research Center for Marine Drugs, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
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BrahmaNaidu P, Nemani H, Meriga B, Mehar SK, Potana S, Ramgopalrao S. Mitigating efficacy of piperine in the physiological derangements of high fat diet induced obesity in Sprague Dawley rats. Chem Biol Interact 2014; 221:42-51. [PMID: 25087745 DOI: 10.1016/j.cbi.2014.07.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 07/13/2014] [Accepted: 07/17/2014] [Indexed: 01/14/2023]
Abstract
An increased risk of obesity has become a common public health concern as it is associated with hypertension, diabetes, osteoarthritis, heart diseases, liver steatosis etc. Pharmacological intervention with natural product-based drugs is considered a healthier alternative to treat obesity. This study was aimed to evaluate anti-obesity effects of piperine on high fat diet (HFD) induced obesity in rats. Piperine was isolated from methanolic extract of Piper nigrum by using column chromatography and confirmed by LC-MS analysis. Male SD rats were fed HFD initially for 15weeks to induce obesity. After induction of obesity, piperine was supplemented in different doses (20, 30 and 40mg/kgb.wt) through HFD for 42days to experimental rats. HFD induced changes in body weight, body composition, fat percentage, adiposity index, blood pressure, plasma levels of glucose, insulin resistance, leptin, adiponectin, plasma and tissue lipid profiles, liver antioxidants were explained. The activities of lipase, amylase and lipid metabolic marker enzymes such as HMG-CoA reductase, carnitine palmitoyl transferase (CPT), fatty acid synthase (FAS), acetyl-CoA carboxylase (ACC), lecithin-cholesterol acyl transferase (LCAT) and lipoprotein lipase (LPL) were assessed in experimental rats. Supplementation of piperine at a dose of 40mg/kgb.wt has significantly (p<0.05) reversed the HFD-induced alterations in experimental rats in a dose dependant manner, the maximum therapeutic effect being noted at a dose of 40mg/kgb.wt. Our study concludes that piperine can be well considered as an effective bioactive molecule to suppress of body weight, improve insulin and leptin sensitivity, ultimately leading to regulate obesity.
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Affiliation(s)
- Parim BrahmaNaidu
- Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Harishankar Nemani
- National Center for Laboratory Animal Sciences, National Institute of Nutrition (Indian Council of Medical Research), Hyderabad 500007, Andhra Pradesh, India
| | - Balaji Meriga
- Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India.
| | - Santosh Kumar Mehar
- Department of Botany, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Sailaja Potana
- National Center for Laboratory Animal Sciences, National Institute of Nutrition (Indian Council of Medical Research), Hyderabad 500007, Andhra Pradesh, India
| | - Sajjalaguddam Ramgopalrao
- Department of Biotechnology, Sreenidhi Institute of Science and Technology, Hyderabad, Andhra Pradesh, India
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Zarrati M, Salehi E, Nourijelyani K, Mofid V, Zadeh MJH, Najafi F, Ghaflati Z, Bidad K, Chamari M, Karimi M, Shidfar F. Effects of probiotic yogurt on fat distribution and gene expression of proinflammatory factors in peripheral blood mononuclear cells in overweight and obese people with or without weight-loss diet. J Am Coll Nutr 2014; 33:417-25. [PMID: 25079040 DOI: 10.1080/07315724.2013.874937] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES The purpose of this study was to investigate whether probiotics had an effect on proinflammatory markers and cytokines in overweight and obese individuals and whether they could have synergistic effects with weight-loss diets. METHODS A total of 75 healthy overweight and obese individuals completed this randomized doubled-blind controlled clinical trial. Participants were randomly assigned to groups consuming regular yogurt with a low-calorie diet (LCD, RLCD; n = 25) or receiving probiotic yogurt with LCD (PLCD; n = 25) or consuming probiotic yogurt without LCD (PWLCD; n = 25) for 8 weeks. The pribiotic regimen contained 200 g/day yogurt, enriched by Lactobacillus acidophilus La5, Bifidobacterium BB12, and Lactobacillus casei DN001 10(8) colony-forming units/g. Body fat percentage, high-sensitive C-reactive protein (hs-CRP), tumor necrosis factor-alpha (TNF-α), leptin, and mRNA levels of inflammation-related genes (TNF-α and RAR-related orphan receptor gamma [ROR-γt]) in peripheral blood mononuclear cells (PBMCs) were measured. RESULTS A reduction in body mass index (BMI), fat percentage, and leptin level was observed that was more obvious in groups who received the weight-loss diet with probiotic yogurt. Reduction in the gene expression of ROR-γt was significant in the PLCD group (p < 0.001). The expression of TNF-α did not change among all groups after intervention. The mean concentration of leptin was significantly decreased in all groups after the dietary intervention, but the mean changes in leptin level in the PLCD group was more prominent compared to the other two groups (-2.38, p < 0.001 [PLCD] vs -1.75, p = 0.002 [RLCD] and -0.55 ng/mL, p = 0.12 [PWLCD]). The reduction in serum levels of hs-CRP was more evident in the PWLCD group compared to the PLCD and RLCD groups after the 8-week intervention (-3.4, p = 0.03 vs -1.76, p < 0.001 and -2.98 pg/mL, p < 0.001, respectively). CONCLUSION Our results suggested that the weight-loss diet and probiotic yogurt had synergistic effects on T-cells subset specific gene expression in PBMCs, fat percentage, and body weight among overweight and obese individuals.
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Affiliation(s)
- Mitra Zarrati
- a Department of Nutrition, School of Health , Tehran University of Medical Sciences , Tehran , IRAN
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Rani N, Vasudeva N, Sharma SK. Quality assessment and anti-obesity activity of Stellaria media (Linn.) Vill. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 12:145. [PMID: 22943464 PMCID: PMC3468403 DOI: 10.1186/1472-6882-12-145] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Accepted: 08/24/2012] [Indexed: 01/22/2023]
Abstract
BACKGROUND Obesity is recognized as a social problem, associated with serious health risks and increased mortality. Numerous trials have been conducted to find and develop new anti-obesity drugs through herbal sources to minimize side effects associated with the present anti-obesity drugs. The present study was designed to evaluate the quality control parameters, quantitative phytochemical analysis (total phenolic, total flavonoids and total saponin content), and the anti-obesity effect of lyophilized juice (LJ) of Stellaria media (Linn.) Vill. by employing in vitro and in vivo models. METHODS In vitro studies were performed to evaluate the inhibitory activity of LJ on pancreatic amylase and lipase. The in vivo pancreatic lipase activity was evaluated by measurement of plasma triacylglycerol levels after oral administration of lipid emulsion to swiss albino mice. Furthermore, the anti-obesity effect of LJ was assessed at two doses, 400 mg/kg and 900 mg/kg body weight in mice fed a high-fat-diet with or without LJ for 6 weeks. RESULTS The LJ inhibited pancreatic amylase and lipase activity in vitro and elevated plasma triacylglycerol level in mice. LJ suppressed the increase in body weight, retroperitoneal adipose tissue, liver weights and serum parameters viz., total cholesterol, total triglyceride, LDL-cholesterol level at the dose of 900 mg/kg body weight of the mice fed with high fat diet. The total phenolic, flavonoid and saponin contents were found to be 0.26 mg/g, 1.4 mg/g and 1.19 μg/g respectively of LJ. CONCLUSION The anti-obesity effects of LJ in high-fat-diet fed mice may be partly mediated through delaying the intestinal absorption of dietary fat and carbohydrate by inhibiting digestive enzymes.
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Assessment of Antiobesity Potential of Achyranthes aspera Linn. Seed. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:715912. [PMID: 22919417 PMCID: PMC3418711 DOI: 10.1155/2012/715912] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 04/29/2012] [Accepted: 04/30/2012] [Indexed: 11/28/2022]
Abstract
The present study was designed to evaluate the quality control parameters, quantitative phytochemical analysis (total phenols, total flavonoids, and total saponin content), and the antiobesity effect of ethanol extract of Achyranthes aspera Linn. seed (EAA) by employing in vitro and in vivo models. In in vitro study, the inhibitory activity of EAA on pancreatic amylase and lipase was measured. The in vivo pancreatic lipase activity was evaluated by measurement of plasma triacylglycerol levels after oral administration of EAA along with lipid emulsion to Swiss albino mice. The EAA inhibited pancreatic amylase and lipase activity in vitro and elevations of plasma triacylglycerol level in mice. Furthermore, the antiobesity effect of EAA (900 mg/kg) was assessed in mice fed a high-fat diet with or without EAA for 6 weeks. EAA significantly suppressed the increase in body, retroperitoneal adipose tissue, liver weights, and serum parameters, namely; total cholesterol, total triglyceride, and LDL-cholesterol level. The anti obesity effects of EAA in high-fat-diet-treated mice may be partly mediated through delaying the intestinal absorption of dietary fat by inhibiting pancreatic amylase and lipase activity. Histopathological effects of EAA on the liver of mice were also assessed.
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An HM, Park SY, Lee DK, Kim JR, Cha MK, Lee SW, Lim HT, Kim KJ, Ha NJ. Antiobesity and lipid-lowering effects of Bifidobacterium spp. in high fat diet-induced obese rats. Lipids Health Dis 2011; 10:116. [PMID: 21745411 PMCID: PMC3146849 DOI: 10.1186/1476-511x-10-116] [Citation(s) in RCA: 290] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 07/12/2011] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Recent studies have reported the preventive effects of probiotics on obesity. Among commensal bacteria, bifidobacteria is one of the most numerous probiotics in the mammalian gut and are a type of lactic acid bacteria. The aim of this study was to assess the antiobesity and lipid-lowering effects of Bifidobacterium spp. isolated from healthy Korean on high fat diet-induced obese rats. METHODS Thirty-six male Sprague-Dawley rats were divided into three groups as follows: (1) SD group, fed standard diet; (2) HFD group, fed high fat diet; and (3) HFD-LAB group, fed high fat diet supplemented with LAB supplement (B. pseudocatenulatum SPM 1204, B. longum SPM 1205, and B. longum SPM 1207; 108 ~ 109 CFU). After 7 weeks, the body, organ, and fat weights, food intake, blood serum levels, fecal LAB counts, and harmful enzyme activities were measured. RESULTS Administration of LAB reduced body and fat weights, blood serum levels (TC, HDL-C, LDL-C, triglyceride, glucose, leptin, AST, ALT, and lipase levels), and harmful enzyme activities (β-glucosidase, β-glucuronidase, and tryptophanase), and significantly increased fecal LAB counts. CONCLUSION These data suggest that Bifidobacterium spp. used in this study may have beneficial antiobesity effects.
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Affiliation(s)
- Hyang Mi An
- College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
| | - Shin Young Park
- College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
| | - Do Kyung Lee
- College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
| | - Jung Rae Kim
- College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
| | - Min Kyeong Cha
- College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
| | - Si Won Lee
- College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
| | - Hyung Taeck Lim
- Jahayun oriental medicine clinic, Seoul 135-897, Republic of Korea
| | - Kyung Jae Kim
- College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
| | - Nam Joo Ha
- College of Pharmacy, Sahmyook University, Seoul 139-742, Republic of Korea
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Ono Y, Hattori E, Fukaya Y, Imai S, Ohizumi Y. Anti-obesity effect of Nelumbo nucifera leaves extract in mice and rats. JOURNAL OF ETHNOPHARMACOLOGY 2006; 106:238-44. [PMID: 16495025 DOI: 10.1016/j.jep.2005.12.036] [Citation(s) in RCA: 202] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2005] [Revised: 12/16/2005] [Accepted: 12/29/2005] [Indexed: 05/06/2023]
Abstract
The leaf of Nelumbo nucifera Gaertn. (family Nymphaeaceae) has been used for summer heat syndrome as home remedy in Japan and China, and it has recently been used to treat obesity in China. So we investigate the pharmacological mechanism of the anti-obesity effect of Nelumbo nucifera leaves extract (NNE). We examined the effect of NNE on digestive enzyme activity, lipid metabolism and theromogenesis and evaluated the effects of anti-obesity using high-fat diet-induced obesity in mice that were treated with NNE for 5 weeks. NNE caused a concentration-dependent inhibition of the activities of alpha-amylase and lipase, and up-regulated lipid metabolism and expression of UCP3 mRNA in C2C12 myotubes. NNE prevented the increase in body weight, parametrial adipose tissue weight and liver triacylglycerol levels in mice with obesity induced by a high-fat diet. UCP3 mRNA expression in skeletal muscle tended to be higher, when mice were administrated by NNE and were exercised. Therefore, NNE impaired digestion, inhibited absorption of lipids and carbohydrates, accelerated lipid metabolism and up-regulated energy expenditure. Consequently, NNE is beneficial for the suppression of obesity.
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Affiliation(s)
- Yuka Ono
- Matsuura Yakugyo Co. Ltd., Enjo-cho, Showa-ku, Nagoya 459-8001, Japan
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Delzenne NM, Kok NN. Biochemical basis of oligofructose-induced hypolipidemia in animal models. J Nutr 1999; 129:1467S-70S. [PMID: 10395622 DOI: 10.1093/jn/129.7.1467s] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Oligofructose (OFS), a mixture of nondigestible/fermentable fructooligosaccharides, decreases serum triacylglycerol (TAG) when it is included in the standard, fiber-free or high fat diet of rats. This paper summarizes in vivo and in vitro data to establish a biochemical mechanism underlying the hypolipidemic effect of OFS. When OFS is added to the standard (carbohydrate-rich) diet of rats at the dose of 10 g/100 g, a TAG-lowering action occurs as a consequence of a reduction of de novo liver fatty acid synthesis. The depression in the activity of all lipogenic enzymes and fatty acid synthase mRNA suggests that OFS modifies the gene expression of lipogenic enzymes. Through its modulation of de novo lipogenesis, OFS can protect against liver lipid accumulation induced by providing 10% fructose-enriched water for 48 h. OFS also significantly decreases serum insulin and glucose, which are both known to participate in the nutritional regulation of lipogenesis. It also increases the intestinal production of incretins, namely, glucose-dependent insulinotropic peptide and glucagon-like peptide 1. This latter phenomenon results mainly from promotion of intestinal tissue proliferation by oligofructose fermentation end-products. Collectively, a link likely exists between the modulation of hormone and incretin production by OFS, and its antilipogenic effect.
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Affiliation(s)
- N M Delzenne
- Unité de Biochimie Toxicologique et Cancérologique, Université Catholique de Louvain, UCL-PMNT 7369-B-1200 Brussels, Belgium
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Kok NN, Morgan LM, Williams CM, Roberfroid MB, Thissen JP, Delzenne NM. Insulin, glucagon-like peptide 1, glucose-dependent insulinotropic polypeptide and insulin-like growth factor I as putative mediators of the hypolipidemic effect of oligofructose in rats. J Nutr 1998; 128:1099-103. [PMID: 9649591 DOI: 10.1093/jn/128.7.1099] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The addition of oligofructose as a dietary fiber decreases the serum concentration and the hepatic release of VLDL-triglycerides in rats. Because glucose, insulin, insulin-like growth factor I (IGF-I) and gut peptides [i.e., glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1)]) are factors involved in the metabolic response to nutrients, this paper analyzes their putative role in the hypolipidemic effect of oligofructose. Male Wistar rats were fed a nonpurified diet with or without 10% oligofructose for 30 d. Glucose, insulin, IGF-I and GIP concentrations were measured in the serum of rats after eating. GIP and GLP-1 contents were also assayed in small intestine and cecal extracts, respectively. A glucose tolerance test was performed in food-deprived rats. Serum insulin level was significantly lower in oligofructose-fed rats both after eating and in the glucose tolerance test, whereas glycemia was lower only in the postprandial state. IGF-I serum level did not differ between groups. GIP concentration was significantly higher in the serum of oligofructose-fed rats. The GLP-1 cecal pool was also significantly higher. In this study, we have shown that cecal proliferation induced by oligofructose leads to an increase in GLP-1 concentration. This latter incretin could be involved in the maintenance of glycemia despite a lower insulinemia in the glucose tolerance test in oligofructose-fed rats. We discuss also the role of hormonal changes in the antilipogenic effect of oligofructose.
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Affiliation(s)
- N N Kok
- Unité de Biochimie Toxicologique et Cancérologique, Département des Sciences Pharmaceutiques, Université Catholique de Louvain, B-1200 Bruxelles, Belgium
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Gletsu NA, Clandinin MT. Impact of dietary fatty acid composition on insulin action at the nucleus. Ann N Y Acad Sci 1997; 827:188-99. [PMID: 9329754 DOI: 10.1111/j.1749-6632.1997.tb51834.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- N A Gletsu
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Canada
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Girard J, Ferré P, Foufelle F. Mechanisms by which carbohydrates regulate expression of genes for glycolytic and lipogenic enzymes. Annu Rev Nutr 1997; 17:325-52. [PMID: 9240931 DOI: 10.1146/annurev.nutr.17.1.325] [Citation(s) in RCA: 254] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Regulation of gene expression by nutrients is an important mechanism in the adaptation of mammals to their nutritional environment. This is especially true for enzymes involved in the storage of energy, such as the lipogenic and glycolytic enzymes in liver and adipose tissue. Transcription of the genes for lipogenic and glycolytic enzymes is stimulated by glucose in adipose tissue, liver, and pancreatic beta-cells. Several lines of evidence suggest that glucose must be metabolized to glucose-6-phosphate to stimulate gene transcription. In adipose tissue, insulin increases the expression of lipogenic enzymes indirectly by stimulating glucose uptake. In the liver, insulin also acts indirectly by stimulating the expression of glucokinase and, hence, by increasing glucose metabolism. Glucose response elements have been characterized for the L-pyruvate kinase and S14 genes. They have in common the presence of a sequence 5'-CACGTG-3', which binds a transcription factor called USF (upstream stimulatory factor). Another glucose response element, which uses a transcription factor named Sp1, has been characterized in the gene for the acetyl-coenzyme A carboxylase. The mechanisms linking glucose-6-phosphate to the glucose-responsive transcription complex are largely unknown.
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Affiliation(s)
- J Girard
- Centre de Recherches sur l'Endocrinologie Moléculaire et le Dévelopement, UPR 1511 CNRS, Meudon, France
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Kok N, Roberfroid M, Robert A, Delzenne N. Involvement of lipogenesis in the lower VLDL secretion induced by oligofructose in rats. Br J Nutr 1996; 76:881-90. [PMID: 9014656 DOI: 10.1079/bjn19960094] [Citation(s) in RCA: 118] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Dietary supplementation with oligofructose (OFS; 100 g/kg), a non-digestible oligomer of beta-D-fructose, decreases serum triacylglycerols in serum and VLDL of rats. In order to investigate the role of hepatic metabolism in the hypolipidaemic effect of OFS, male Wistar rats were fed on a standard diet with or without 100 g Raftilose P95/kg as OFS source for 30 d. OFS feeding (1) significantly decreased triacylglycerol and phospholipid concentrations in both blood and liver, (2) increased the glycerol-3-phosphate liver content but decreased the hepatic activity of glycerol-3-phosphate acyltransferase (EC 2.3.1.15), suggesting a decrease in acylglycerol synthesis, (3) did not affect the blood non-esterified fatty acid concentrations, but (4) reduced by 54% the capacity of isolated hepatocytes to synthesize and secrete triacylglycerols from labelled acetate; the activity of fatty acid synthase, a key lipogenic enzyme was also significantly decreased. These findings suggest that OFS decreases serum triacylglycerols by reducing de novo fatty acid synthesis in the liver; the lower insulin level in the serum of OFS-fed rats could explain, at least partly, the metabolic effect induced by such non-digestible carbohydrates.
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Affiliation(s)
- N Kok
- Déparetment des Sciences Pharmaceutiques. Université Catholique de Louvain, Brussels, Belgium
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Foufelle F, Girard J, Ferré P. Regulation of lipogenic enzyme expression by glucose in liver and adipose tissue: a review of the potential cellular and molecular mechanisms. ADVANCES IN ENZYME REGULATION 1996; 36:199-226. [PMID: 8869748 DOI: 10.1016/0065-2571(95)00010-0] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Regulation of gene expression by nutrients is an important part of the mechanisms allowing mammals to adapt to their nutritional environment. This is especially true for enzymes involved in the storage of energy such as the lipogenic and glycolytic enzymes in the liver and adipose tissue. We review in the present paper the cellular and molecular mechanisms involved in the regulation of glycolytic and lipogenic enzyme gene expression by glucose. In vivo and in vitro experiments have demonstrated that FAS and ACC gene expression is upregulated by glucose in adipose tissue, FAS, ACC and L-PK expression in the liver and ACC and L-PK expression in a pancreatic beta-cell line. This regulation involves the stimulation of their transcription. In order for glucose to act as a gene inducer, it must be metabolized. In adipose tissue, insulin increases indirectly the expression of FAS and ACC by stimulating glucose metabolism through its well-known effect on glucose transport. In the liver, the action of insulin is also indirect by allowing the expression of glucokinase and hence by increasing glucose metabolism. In the liver, fructose has a potentiating effect on the stimulation of gene expression by glucose through its stimulatory effect on glucokinase activity. Several evidences suggest that glucose-6-phosphate is the signal metabolite: (i) the effect of glucose is mimicked by 2-deoxyglucose (a glucose analogue whose metabolism stops after its phosphorylation by hexokinase) in adipose tissue and beta-cell line but not in the liver in which 2-deoxyglucose-6-phosphate does not accumulate, (ii) intracellular glucose-6-phosphate concentration varies in parallel with ACC, FAS and L-PK mRNA concentrations in liver, adipose tissue and beta-cell line, (iii) in vivo, the kinetics of hexose-phosphate fits with the time-related pattern of gene induction. Glucose response elements have been characterized on three genes, L-PK, S14 (a gene which codes for a protein of unknown function but which is directly related to lipogenesis) and FAS. These glucose response elements have all in common the presence of a sequence 5'-CACGTG-3' which binds a transcription factor of the basic domain, helix-loop-helix, leucine zipper family called USF/MLTF, although the organization of the overall glucose response element probably differs from one gene to another. The mechanisms linking glucose-6-phosphate to the glucose responsive transcription complex are presently largely unknown.
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Affiliation(s)
- F Foufelle
- Unité INSERM 342, Hôpital Saint-Vincent-de-Paul, Paris, France
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Girard J, Issad T, Maury J, Foufelle F, Postic C, Leturque A, Ferre P. Influence of the weaning diet on the changes of glucose metabolism and of insulin sensitivity. Proc Nutr Soc 1993; 52:325-33. [PMID: 8234354 DOI: 10.1079/pns19930068] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- J Girard
- Centre de Recherche sur l'Endocrinologie Moléculaire et le Développement, CNRS, Meudon-Bellevue, France
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