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Albrahim T. Lycopene Modulates Oxidative Stress and Inflammation in Hypercholesterolemic Rats. Pharmaceuticals (Basel) 2022; 15:1420. [PMID: 36422550 PMCID: PMC9693203 DOI: 10.3390/ph15111420] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 07/30/2023] Open
Abstract
The complicated disorder of hypercholesterolemia has several underlying factors, including genetic and lifestyle factors. Low LDL cholesterol and elevated serum total cholesterol are its defining features. A carotenoid with antioxidant quality is lycopene. Examining lycopene activity in an animal model of hypercholesterolemia induced using food was the aim of this investigation. Triglycerides, LDL cholesterol, HDL cholesterol, and plasma total cholesterol were all measured. Biomarkers of renal and cardiac function were also examined. Apoptotic indicators, pro-inflammatory markers, and oxidative stress were also assessed. Additionally, the mRNA expression of paraoxonase 1 (PON-1), peroxisome proliferator-activated receptor gamma (PPAR-γ), and PPAR-γ coactivator 1 alpha (PGC-1α) in cardiac and renal tissues was examined. Rats showed elevated serum lipid levels, renal and cardiac dysfunction, significant oxidative stress, and pro-inflammatory and apoptotic markers at the end of the study. Treatment with lycopene significantly corrected and restored these changes. Additionally, lycopene markedly increased the mRNA expression of PGC-1α and PON-1, and decreased PPAR-γ expression. It was determined that lycopene has the capacity to modulate the PPAR-γ and PON-1 signaling pathway in order to preserve the cellular energy metabolism of the heart and kidney, which in turn reduces tissue inflammatory response and apoptosis. According to these findings, lycopene may be utilized as a medication to treat hypercholesterolemia. However, further studies should be conducted first to determine the appropriate dose and any adverse effects that may appear after lycopene usage in humans.
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Affiliation(s)
- Tarfa Albrahim
- Department of Health Sciences, Clinical Nutrition, College of Health and Rehabilitation Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
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Antitoxic Effects of Curcumin against Obesity-Induced Multi-Organs' Biochemical and Histopathological Abnormalities in an Animal Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:9707278. [PMID: 36248416 PMCID: PMC9560822 DOI: 10.1155/2022/9707278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 11/07/2022]
Abstract
Background Obesity is a significant public health problem that is characterized by an increase in oxidative stress and enhanced inflammatory responses associated with immune cell invasion of adipose tissues. This study assessed several biochemical abnormalities, apoptosis, oxidative stress status, and associated histological changes in the liver, duodenum, and heart brought on by high-fat diet-induced obesity in rats. It also assessed the mechanistic benefits of curcumin in reversing these inflammatory, metabolic, and histological impairments. Methods Rats were assigned into three groups each including ten rats: the control group (CD), the high-fat diet group (HFD), and the high-fat diet + curcumin (HFDC) group. Serum glucose, insulin, and triglycerides (TAGs) were observed. In addition, apoptosis (indicated by hepatic DNA fragmentation) and oxidative stress status (indicated by hepatic MPO, GSH, and SOD) were assessed. Histopathological examinations included the GIT (liver and duodenum) and heart in addition to quantitative real-time polymerase chain reaction (qRT-PCR) assays of the adipose tissue genetic expressions for inflammatory signaling pathways (TLR4, IL-6, and TNF-α). Results The overall findings showed that the HFD group exhibited significantly higher levels of glucose, TAGs, and insulin than the control group (P < 0.01). The histological abnormalities of the studied organs in the HFD group were paralleled by these biochemical abnormalities, which were strongly associated with increased apoptosis, increased oxidative stress, and increased expression of the inflammatory signaling markers. There were significant improvements in the HFDC group in terms of biochemical, inflammatory, and histological investigations. Conclusions This study's findings concluded that obesity is significantly associated with biochemical and microscopic alterations in many organs. Curcumin exerted potent antitoxic, antioxidant, tissue-protective, and antiobesity effects. Curcumin is recommended to be added to various dietary regimens to prevent or delay the organs' dysfunction among obese people.
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Enayati A, Ghojoghnejad M, Roufogalis BD, Maollem SA, Sahebkar A. Impact of Phytochemicals on PPAR Receptors: Implications for Disease Treatments. PPAR Res 2022; 2022:4714914. [PMID: 36092543 PMCID: PMC9453090 DOI: 10.1155/2022/4714914] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 07/10/2022] [Indexed: 11/17/2022] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) are members of the ligand-dependent nuclear receptor family. PPARs have attracted wide attention as pharmacologic mediators to manage multiple diseases and their underlying signaling targets. They mediate a broad range of specific biological activities and multiple organ toxicity, including cellular differentiation, metabolic syndrome, cancer, atherosclerosis, neurodegeneration, cardiovascular diseases, and inflammation related to their up/downstream signaling pathways. Consequently, several types of selective PPAR ligands, such as fibrates and thiazolidinediones (TZDs), have been approved as their pharmacological agonists. Despite these advances, the use of PPAR agonists is known to cause adverse effects in various systems. Conversely, some naturally occurring PPAR agonists, including polyunsaturated fatty acids and natural endogenous PPAR agonists curcumin and resveratrol, have been introduced as safe agonists as a result of their clinical evidence or preclinical experiments. This review focuses on research on plant-derived active ingredients (natural phytochemicals) as potential safe and promising PPAR agonists. Moreover, it provides a comprehensive review and critique of the role of phytochemicals in PPARs-related diseases and provides an understanding of phytochemical-mediated PPAR-dependent and -independent cascades. The findings of this research will help to define the functions of phytochemicals as potent PPAR pharmacological agonists in underlying disease mechanisms and their related complications.
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Affiliation(s)
- Ayesheh Enayati
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mobina Ghojoghnejad
- Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Basil D. Roufogalis
- Discipline of Pharmacology, School of Medical Sciences, University of Sydney, Sydney, NSW, Australia
- NICM Health Research Institute, Western Sydney University, Penrith, NSW, Australia
| | - Seyed Adel Maollem
- Department of Pharmacology and Toxicology, College of Pharmacy, Al-Zahraa University for Women, Karbala, Iraq
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Mohammadi E, Behnam B, Mohammadinejad R, Guest PC, Simental-Mendía LE, Sahebkar A. Antidiabetic Properties of Curcumin: Insights on New Mechanisms. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1291:151-164. [PMID: 34331689 DOI: 10.1007/978-3-030-56153-6_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Plant extracts have been used to treat a wide range of human diseases. Curcumin, a bioactive polyphenol derived from Curcuma longa L., exhibits therapeutic effects against diabetes while only negligible adverse effects have been observed. Antioxidant and anti-inflammatory properties of curcumin are the main and well-recognized pharmacological effects that might explain its antidiabetic effects. Additionally, curcumin may regulate novel signaling molecules and enzymes involved in the pathophysiology of diabetes, including glucagon-like peptide-1, dipeptidyl peptidase-4, glucose transporters, alpha-glycosidase, alpha-amylase, and peroxisome proliferator-activated receptor gamma (PPARγ). Recent findings from in vitro and in vivo studies on novel signaling pathways involved in the potential beneficial effects of curcumin for the treatment of diabetes are discussed in this review.
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Affiliation(s)
- Elahe Mohammadi
- Student Research Committee, School of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Behzad Behnam
- Herbal and Traditional Medicines Research Center, Kerman University of Medical Sciences, Kerman, Iran. .,Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran. .,Pharmaceutical Sciences and Cosmetic Products Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | - Reza Mohammadinejad
- Herbal and Traditional Medicines Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Paul C Guest
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | | | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran. .,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland. .,Halal Research Center of IRI, FDA, Tehran, Iran.
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Ab Rahman NS, Abdul Majid FA, Abd Wahid ME, Ismail HF, Tap FM, Zainudin AN, Zainol SN, Mohammad MA. Molecular docking analysis and anti-hyperglycaemic activity of Synacinn™ in streptozotocin-induced rats. RSC Adv 2020; 10:34581-34594. [PMID: 35514405 PMCID: PMC9058594 DOI: 10.1039/d0ra04664g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/31/2020] [Indexed: 11/21/2022] Open
Abstract
Synacinn™ is a standardized polyherbal supplement formulated from Cinnamomum zeylanicum Blume, Curcuma zanthorrhiza Roxb., Syzygium polyanthum (Wight) Walp., Orthosiphon stamineus Benth. and Andrographis paniculata (Burm.f.) Nees. It is designed for the synergistic treatment of diabetes mellitus and its complications. Although the beneficial effects are yet to be verified scientifically, it is traditionally used to improve general health in patients with diabetes. This study aimed to evaluate the anti-hyperglycemic effects of Synacinn™ in a streptozotocin-induced type 1 diabetes rat model. Initially, Synacinn™ was used for in vivo acute oral toxicity tests and 14 day repeated dose toxicity tests to determine the toxicity levels. An efficacy study of Synacinn™ was carried out via the oral administration of 10, 50, 100, 250, and 250 (b.i.d.) mg kg-1 doses to streptozotocin-induced diabetic rats. After 28 days, blood serum was collected to measure the fasting blood glucose, triglyceride, cholesterol, alanine aminotransferase, alkaline phosphatase, creatinine, and uric acid levels. The liver, kidney, and pancreas structures were histopathologically analyzed. In silico binding interaction studies of five phytochemicals in Synacinn™ identified via HPLC with glucokinase were performed using molecular docking analysis. The results showed that although no mortality was observed during the acute oral toxicity tests, notable damage to the liver and kidney occurred during the 14 day repeated dose testing at Synacinn™ levels of 600 mg kg-1 and 2000 mg kg-1. Treatment with 250 mg kg-1 (b.i.d.) Synacinn™ of the streptozotocin-induced type 1 diabetic rats significantly (p < 0.05) improved the fasting blood glucose (59%), triglyceride (58%), cholesterol (47%), alanine aminotransferase (60%), alkaline phosphatase (90%), and creatinine (32%) levels. Synacinn™ also improved the relative weights of liver (35%), kidney (36%), and pancreatic (36%) tissue. Histological analysis showed improvements in the conditions of the central vein of the liver, the kidney Bowman's capsule and glomerulus, and the pancreatic islets of Langerhans. HPLC analysis of a standardized extract identified five active phytochemicals: andrographolide (17.36 mg g-1), gallic acid (11.5 mg g-1), curcumin (2.75 mg g-1), catechin (3.9 mg g-1), and rosmarinic acid (5.54 mg g-1). Molecular docking studies with glucokinase showed that andrographolide yields the highest binding energy (-12.1 kcal mol-1), followed by catechin (-10.2 kcal mol-1), rosmarinic acid (-8.6 kcal mol-1), curcumin (-7.8 kcal mol-1), and gallic acid (-5.6 kcal mol-1). These current findings suggest that Synacinn™ at a dose of 250 mg kg-1 was non-toxic to rats. A twice-daily 250 mg kg-1 dose of Synacinn™ is an effective anti-hyperglycemic agent, lowering blood glucose, triglyceride, and cholesterol levels, and assisting the recovery of organ impairment caused by streptozotocin in type 1 diabetic rats.
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Affiliation(s)
- Nur Syukriah Ab Rahman
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu 21030 Malaysia
- Faculty of Chemical Engineering, Universiti Teknologi Mara Bukit Besi 23200 Dungun Terengganu Malaysia
| | | | | | - Hassan Fahmi Ismail
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu 21030 Malaysia
| | - Fatahiya Mohamed Tap
- Faculty of Chemical Engineering, Universiti Teknologi Mara Bukit Besi 23200 Dungun Terengganu Malaysia
| | - Ain Nabihah Zainudin
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu 21030 Malaysia
- Proliv Life Sciences Sdn Bhd D-1-16, Residensi Bistaria, Jalan Ulu Kelang, Taman Ukay Bistari 68000 Ampang Selangor Malaysia
| | - Siti Nurazwa Zainol
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu 21030 Malaysia
- Proliv Life Sciences Sdn Bhd D-1-16, Residensi Bistaria, Jalan Ulu Kelang, Taman Ukay Bistari 68000 Ampang Selangor Malaysia
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Sayehmiri K, Ahmadi I, Anvari E. Fructose Feeding and Hyperuricemia: a Systematic Review and Meta-Analysis. Clin Nutr Res 2020; 9:122-133. [PMID: 32395442 PMCID: PMC7192665 DOI: 10.7762/cnr.2020.9.2.122] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/11/2020] [Accepted: 04/16/2020] [Indexed: 12/29/2022] Open
Abstract
High fructose feeding has been suggested to involve in several features of metabolic syndrome including hyperuricemia (HP). We designed and implemented a study to determine the effect size of fructose intake and the relative risk of HP based on the type of fructose feeding (diet or solution), duration of treatment (2–6, 7–10, and > 10 weeks), and animal race. The required information was accepted from international databases, including PubMed/MEDLINE, Science Direct, Scopus, and etc., from 2009 until 2019 on the basis of predetermined eligibility criteria. The data selection and extraction and quality assessment were performed independently by two researchers. Results were pooled as random effects weighting and reported as standardized mean differences with 95% confidence intervals. Thirty-five studies including 244 rats with fructose consumption were included in the final analysis. The heterogeneity rate of parameters was high (I2 = 81.3%, p < 0.001) and estimated based on; 1) type of fructose feeding (diet; I2 = 79.3%, solution 10%; I2 = 83.4%, solution 20%; I2 = 81.3%), 2) duration of treatment (2–6 weeks; I2 = 86.8%, 7–10 weeks; I2 = 76.3%, and > 10 weeks; I2 = 82.8%), 3) the animal race (Wistar; I2 = 78.6%, Sprague-Dawley; I2 = 83.9%). Overall, the pooled estimate for the all parameters was significant (p < 0.001). The results of this study indicated that a significant relationship between HP and fructose intake regardless of the treatment duration, animal race, fructose concentration and route of consumption.
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Affiliation(s)
- Kourosh Sayehmiri
- Department of Social Medicine, Faculty of Medicine, Ilam University of Medical Sciences, Ilam 6931851147, Iran
| | - Iraj Ahmadi
- Department of Physiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam 6931851147, Iran
| | - Enayat Anvari
- Department of Physiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam 6931851147, Iran
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Vollono L, Falconi M, Gaziano R, Iacovelli F, Dika E, Terracciano C, Bianchi L, Campione E. Potential of Curcumin in Skin Disorders. Nutrients 2019; 11:E2169. [PMID: 31509968 PMCID: PMC6770633 DOI: 10.3390/nu11092169] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/05/2019] [Accepted: 08/15/2019] [Indexed: 12/12/2022] Open
Abstract
Curcumin is a compound isolated from turmeric, a plant known for its medicinal use. Recently, there is a growing interest in the medical community in identifying novel, low-cost, safe molecules that may be used in the treatment of inflammatory and neoplastic diseases. An increasing amount of evidence suggests that curcumin may represent an effective agent in the treatment of several skin conditions. We examined the most relevant in vitro and in vivo studies published to date regarding the use of curcumin in inflammatory, neoplastic, and infectious skin diseases, providing information on its bioavailability and safety profile. Moreover, we performed a computational analysis about curcumin's interaction towards the major enzymatic targets identified in the literature. Our results suggest that curcumin may represent a low-cost, well-tolerated, effective agent in the treatment of skin diseases. However, bypass of limitations of its in vivo use (low oral bioavailability, metabolism) is essential in order to conduct larger clinical trials that could confirm these observations. The possible use of curcumin in combination with traditional drugs and the formulations of novel delivery systems represent a very promising field for future applicative research.
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Affiliation(s)
- Laura Vollono
- Dermatology Unit, Department of "Medicina dei Sistemi", University of Rome Tor Vergata, Via Montpellier, 1-00133 Rome, Italy
| | - Mattia Falconi
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 1-00133 Rome, Italy
| | - Roberta Gaziano
- Microbiology Section, Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1-00133 Rome, Italy
| | - Federico Iacovelli
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 1-00133 Rome, Italy
| | - Emi Dika
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine-DIMES, University of Bologna, Via Massarenti, 1-40138 Bologna, Italy
| | - Chiara Terracciano
- Neurology Unit, Guglielmo de Saliceto Hospital, 29121-29122 Piacenza, Italy
| | - Luca Bianchi
- Dermatology Unit, Department of "Medicina dei Sistemi", University of Rome Tor Vergata, Via Montpellier, 1-00133 Rome, Italy
| | - Elena Campione
- Dermatology Unit, Department of "Medicina dei Sistemi", University of Rome Tor Vergata, Via Montpellier, 1-00133 Rome, Italy.
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Li Q, Sun J, Mohammadtursun N, Wu J, Dong J, Li L. Curcumin inhibits cigarette smoke-induced inflammation via modulating the PPARγ-NF-κB signaling pathway. Food Funct 2019; 10:7983-7994. [PMID: 31773117 DOI: 10.1039/c9fo02159k] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The PPARγ-NF-κB signaling pathway is involved in the anti-inflammatory effect of curcumin on cigarette smoke-induced COPD models.
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Affiliation(s)
- Qiuping Li
- Department of Integrative Medicine
- Huashan Hospital
- Fudan University
- Shanghai 200040
- China
| | - Jing Sun
- Department of Integrative Medicine
- Huashan Hospital
- Fudan University
- Shanghai 200040
- China
| | | | - Jinfeng Wu
- Institutes of Dermatology
- Fudan University
- Shanghai 200040
- China
| | - Jingcheng Dong
- Department of Integrative Medicine
- Huashan Hospital
- Fudan University
- Shanghai 200040
- China
| | - Lulu Li
- Department of Integrative Medicine
- Huashan Hospital
- Fudan University
- Shanghai 200040
- China
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Zhang M, Dai T, Feng N. A Novel Solubility-Enhanced Rubusoside-Based Micelles for Increased Cancer Therapy. NANOSCALE RESEARCH LETTERS 2017; 12:274. [PMID: 28410552 PMCID: PMC5391341 DOI: 10.1186/s11671-017-2054-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 04/06/2017] [Indexed: 05/06/2023]
Abstract
Many anti-cancer drugs have a common problem of poor solubility. Increasing the solubility of the drugs is very important for its clinical applications. In the present study, we revealed that the solubility of insoluble drugs was significantly enhanced by adding rubusoside (RUB). Further, it was demonstrated that RUB could form micelles, which was well characterized by Langmuir monolayer investigation, transmission electron microscopy, atomic-force microscopy, and cryogenic transmission electron microscopy. The RUB micelles were ellipsoid with the horizontal distance of ~25 nm and vertical distance of ~1.2 nm. Insoluble synergistic anti-cancer drugs including curcumin and resveratrol were loaded in RUB to form anti-cancer micelles RUB/CUR + RES. MTT assay showed that RUB/CUR + RES micelles had more significant toxicity on MCF-7 cells compared to RUB/CUR micelles + RUB/RES micelles. More importantly, it was confirmed that RUB could load other two insoluble drugs together for remarkably enhanced anti-cancer effect compared to that of RUB/one drug + RUB/another drug. Overall, we concluded that RUB-based micelles could efficiently load insoluble drugs for enhanced anti-cancer effect.
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Affiliation(s)
- Meiying Zhang
- Department of Pharmaceutical Sciences, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai, 201203, China
| | - Tongcheng Dai
- Department of Pharmaceutical Sciences, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai, 201203, China
- Department of Pharmaceutics, School of Pharmacy, Key Laboratory of Smart Drug Delivery, Ministry of Education, Fudan University, Shanghai, 201203, China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China
| | - Nianping Feng
- Department of Pharmaceutical Sciences, School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong New District, Shanghai, 201203, China.
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Qin S, Huang L, Gong J, Shen S, Huang J, Ren H, Hu H. Efficacy and safety of turmeric and curcumin in lowering blood lipid levels in patients with cardiovascular risk factors: a meta-analysis of randomized controlled trials. Nutr J 2017; 16:68. [PMID: 29020971 PMCID: PMC5637251 DOI: 10.1186/s12937-017-0293-y] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 10/05/2017] [Indexed: 02/07/2023] Open
Abstract
Background Dyslipidemia is an important and common cardiovascular risk factor in the general population. The lipid-lowering effects of turmeric and curcumin are unconfirmed. We performed a meta-analysis to assess the efficacy and safety of turmeric and curcumin in lowering blood lipids in patients at risk of cardiovascular disease (CVD). Methods A comprehensive literature search was conducted on PubMed, Embase, Ovid, Medline and Cochrane Library databases to identify randomized controlled trials (published as of November 2016) that assessed the effect of turmeric and curcumin on blood lipid levels including total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG). Pooled standardized mean difference (SMD) with 95% confidence interval (CI) was used to assess the effect. Results The analysis included 7 eligible studies (649 patients). Turmeric and curcumin significantly reduced serum LDL-C (SMD = −0.340, 95% confidence interval [CI]: −0.530 to −0.150, P < 0.0001) and TG (SMD = −0.214, 95% CI: −0.369 to −0.059, P = 0.007) levels as compared to those in the control group. These may be effective in lowering serum TC levels in patients with metabolic syndrome (MetS, SMD = −0.934, 95% CI: −1.289 to −0.579, P < 0.0001), and turmeric extract could possibly have a greater effect on reducing serum TC levels (SMD = −0.584, 95% CI: −0.980 to −0.188, P = 0.004); however, the efficacy is yet to be confirmed. Serum HDL-C levels were not obviously improved. Turmeric and curcumin appeared safe, and no serious adverse events were reported in any of the included studies. Conclusions Turmeric and curcumin may protect patients at risk of CVD through improving serum lipid levels. Curcumin may be used as a well-tolerated dietary adjunct to conventional drugs. Further research is required to resolve uncertainties related to dosage form, dose and medication frequency of curcumin. Electronic supplementary material The online version of this article (10.1186/s12937-017-0293-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Si Qin
- Department of Clinical Nutrition, The Second Affiliated Hospital of Chongqing Medical University, No.76, Linjiang Road, Chongqing, 400010, People's Republic of China
| | - Lifan Huang
- Department of Clinical Nutrition, The Second Affiliated Hospital of Chongqing Medical University, No.76, Linjiang Road, Chongqing, 400010, People's Republic of China
| | - Jiaojiao Gong
- Department of Clinical Nutrition, The Second Affiliated Hospital of Chongqing Medical University, No.76, Linjiang Road, Chongqing, 400010, People's Republic of China.,Department of Infectious Diseases, Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Shasha Shen
- Department of Clinical Nutrition, The Second Affiliated Hospital of Chongqing Medical University, No.76, Linjiang Road, Chongqing, 400010, People's Republic of China.,Department of Infectious Diseases, Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Juan Huang
- Department of Clinical Nutrition, The Second Affiliated Hospital of Chongqing Medical University, No.76, Linjiang Road, Chongqing, 400010, People's Republic of China.,Department of Infectious Diseases, Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Hong Ren
- Department of Infectious Diseases, Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Huaidong Hu
- Department of Clinical Nutrition, The Second Affiliated Hospital of Chongqing Medical University, No.76, Linjiang Road, Chongqing, 400010, People's Republic of China. .,Department of Infectious Diseases, Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.
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