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Xu Y, Yi M, Sun S, Wang L, Zhang Z, Ling Y, Cao H. The regulatory mechanism of garlic skin improving the growth performance of fattening sheep through metabolism and immunity. Front Vet Sci 2024; 11:1409518. [PMID: 38872796 PMCID: PMC11171129 DOI: 10.3389/fvets.2024.1409518] [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: 03/30/2024] [Accepted: 05/08/2024] [Indexed: 06/15/2024] Open
Abstract
Objective Garlic skin (GAS) has been proven to improve the growth performance of fattening sheep. However, the mechanism by which GAS affects fattening sheep is not yet clear. The aim of this study is to investigate the effects of adding GAS to feed on the growth performance, rumen and fecal microbiota, serum and urine metabolism, and transcriptomics of rumen epithelial cells in fattening sheep. Methods GAS with 80 g/kg dry matter (DM) was added to the diet of fattening sheep to study the effects of GAS on gut microbiota, serum and urine metabolism, and transcriptome of rumen epithelial tissue in fattening sheep. Twelve Hu sheep (body weights; BW, 23.0 ± 2.3 kg and ages 120 ± 3.5 d) were randomly divided into two groups. The CON group was the basal diet, while the GAS group was supplemented with GAS in the basal diet. The trial period was 10 weeks, with the first 2 weeks being the pre-trial period. Results The daily average weight gain of fattening sheep in the GAS group was significantly higher than that in the CON group (p < 0.05), and the serum GSH-Px of the GAS group fattening sheep was significantly increased, while MDA was significantly reduced (p < 0.05). Based on the genus classification level, the addition of garlic peel in the diet changed the intestinal microbial composition, and the relative abundance was significantly upregulated by Metanobrevibater (p < 0.05), while significantly downregulated by Akkermansia, Parasutterella, and Guggenheimella (p < 0.05). Metabolomics analysis found that there were 166 significantly different metabolites in serum and 68 significantly different metabolites in urine between the GAS and CON groups (p < 0.05). GAS had an impact on amino acid metabolism, pyrimidine metabolism, methane metabolism, riboflavin metabolism, and unsaturated fatty acid synthesis pathways (p < 0.05). Transcriptome sequencing showed that differentially expressed genes were mainly enriched in immune regulatory function, improving the health of fattening sheep. Conclusion Adding GAS can improve the energy metabolism and immune function of fattening sheep by altering gut microbiota, metabolome, and transcriptome, thereby improving the growth performance of fattening sheep.
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Affiliation(s)
- Yongjie Xu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Mingliang Yi
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Shixin Sun
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Lei Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Zijun Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, China
| | - Yinghui Ling
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, China
| | - Hongguo Cao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, China
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Luo J, Luo M, Kaminga AC, Wei J, Dai W, Peng Y, Zhao K, Duan Y, Xiao X, Ouyang S, Yao Z, Liu Y, Pan X. Integrative metabolomics highlights gut microbiota metabolites as novel NAFLD-related candidate biomarkers in children. Microbiol Spectr 2024; 12:e0523022. [PMID: 38445874 PMCID: PMC10986516 DOI: 10.1128/spectrum.05230-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 12/29/2023] [Indexed: 03/07/2024] Open
Abstract
Altered gut microbiota and metabolites are important for non-alcoholic fatty liver disease (NAFLD) in children. We aimed to comprehensively examine the effects of gut metabolites on NAFLD progression. We performed integrative metabolomics (untargeted discovery and targeted validation) analysis of non-alcoholic fatty liver (NAFL), non-alcoholic steatohepatitis (NASH), and obesity in children. Fecal samples were collected from 75 subjects in the discovery cohort (25 NAFL, 25 NASH, and 25 obese control children) and 145 subjects in an independent validation cohort (53 NAFL, 39 NASH, and 53 obese control children). Among 2,491 metabolites, untargeted metabolomics revealed a complete NAFLD metabolic map containing 318 increased and 123 decreased metabolites. Then, machine learning selected 65 important metabolites that can distinguish the severity of the NAFLD. Furthermore, precision-targeted metabolomics selected 5 novel gut metabolites from 20 typical metabolites. The functionality of candidate metabolites was validated in hepatocyte cell lines. In the end, this study annotated two novel elevated pathogenic metabolites (dodecanoic acid and creatinine) and a relationship between depleted protective gut microbiota (Butyricicoccus and Alistipes), increased inflammation (IL-1β), lipid metabolism (TG), and liver function (ALT and AST). This study demonstrates the role of novel gut metabolites (dodecanoic acid and creatinine), as the fatty acid metabolism regulator contributing to NAFLD development through its influence on inflammation and liver function. IMPORTANCE Altered gut microbiota and metabolites are a major cause of non-alcoholic fatty liver disease (NAFLD) in children. This study demonstrated a complete gut metabolic map of children with NAFLD, containing 318 increased and 123 decreased metabolites by untargeted metabolomic. Multiple validation approaches (machine learning and targeted metabolomic) selected five novel gut metabolites for targeted metabolomics, which can distinguish NAFLD status and severity. The gut microbiota (Butyricicoccus and Alistipes) and metabolites (creatinine and dodecanoic acid) were novel biomarkers associated with impaired liver function and inflammation and validated by experiments of hepatocyte cell lines. The data provide a better understanding of the importance of gut microbiota and metabolite alterations in NAFLD, which implies that the altered gut microbiota and metabolites may represent a potential target to prevent NAFLD development.
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Affiliation(s)
- Jiayou Luo
- Pediatrics Research Institute of Hunan Province, Hunan Children’s Hospital, Changsha, China
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Miyang Luo
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | | | - Jia Wei
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Wen Dai
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Yunlong Peng
- Department of Epidemiology and Health Statistics, Medical College of Soochow University, Suzhou, China
| | - Kunyan Zhao
- School of Public Health, University of South China, Hengyang, China
| | - Yamei Duan
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Xiang Xiao
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - SiSi Ouyang
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Zhenzhen Yao
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Yixu Liu
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
| | - Xiongfeng Pan
- Pediatrics Research Institute of Hunan Province, Hunan Children’s Hospital, Changsha, China
- Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China
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Adedara IA, Ileola-Gold AV, Adelaja UA, Njoku CA, Ikeji CN, Owoeye O, Farombi EO. Exogenous taurine administration abates reproductive dysfunction in male rats exposed to silver nanoparticles. ENVIRONMENTAL TOXICOLOGY 2024; 39:61-74. [PMID: 37638810 DOI: 10.1002/tox.23945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/18/2023] [Accepted: 08/13/2023] [Indexed: 08/29/2023]
Abstract
The broad contemporary applications of silver nanoparticles (AgNPs) have been associated with various toxicities including reproductive toxicity. Taurine is well acknowledged for its potent pharmacological role in numerous disease models and chemically-mediated toxicity. We investigated the effect of taurine on AgNPs-induced reproductive toxicity in male rats. The animals were intraperitoneally injected with AgNPs (200 μg/kg) alone or co-administered with taurine at 50 and 100 mg/kg for 21 successive days. Exogenous taurine administration significantly abated AgNPs-induced oxidative injury by decreasing the levels of oxidative stress indices while boosting antioxidant enzymes activities and glutathione level in the hypothalamus, testes and epididymis of exposed animals. Taurine administration alleviated AgNPs-induced inflammatory response and caspase-3 activity, an apoptotic biomarker. Moreover, taurine significantly improved spermiogram, reproductive hormones and the marker enzymes of testicular function in AgNPs-treated animals. The ameliorative effect of taurine on pathological lesions induced by AgNPs in the exposed animals was substantiated by histopathological data. This study provides the first mechanistic evidence that taurine supplementation affords therapeutic effect against reproductive dysfunction associated with AgNPs exposure in male rats.
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Affiliation(s)
- Isaac A Adedara
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ayomitan V Ileola-Gold
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Uthman A Adelaja
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Chiwueze A Njoku
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Cynthia N Ikeji
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olatunde Owoeye
- Department of Anatomy, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ebenezer O Farombi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
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Muhammed TM, Jalil AT, Taher WM, Aminov Z, Alsaikhan F, Ramírez-Coronel AA, Ramaiah P, Farhood B. The Effects of Apigenin in the Treatment of Diabetic Nephropathy: A Systematic Review of Non-clinical Studies. Mini Rev Med Chem 2024; 24:341-354. [PMID: 38282447 DOI: 10.2174/1389557523666230811092423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/10/2023] [Accepted: 07/13/2023] [Indexed: 01/30/2024]
Abstract
PURPOSE Diabetes is one of the important and growing diseases in the world. Among the most common diabetic complications are renal adverse effects. The use of apigenin may prevent the development and progression of diabetes-related injuries. The current study aims to review the effects of apigenin in the treatment of diabetic nephropathy. METHODS In this review, a systematic search was performed based on PRISMA guidelines for obtaining all relevant studies on "the effects of apigenin against diabetic nephropathy" in various electronic databases up to September 2022. Ninety-one articles were obtained and screened in accordance with the predefined inclusion and exclusion criteria. Seven eligible articles were finally included in this review. RESULTS The experimental findings revealed that hyperglycemia led to the decreased cell viability of kidney cells and body weight loss and an increased kidney weight of rats; however, apigenin administration had a reverse effect on these evaluated parameters. It was also found that hyperglycemia could induce alterations in the biochemical and renal function-related parameters as well as histopathological injuries in kidney cells or tissue; in contrast, the apigenin administration could ameliorate the hyperglycemia-induced renal adverse effects. CONCLUSION The results indicated that the use of apigenin could mitigate diabetes-induced renal adverse effects, mainly through its antioxidant, anti-apoptotic, and anti-inflammatory activities. Since the findings of this study are based on experimental studies, suggesting the use of apigenin (as a nephroprotective agent) against diabetic nephropathy requires further clinical studies.
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Affiliation(s)
- Thikra Majid Muhammed
- Department of Biotechnology, College of Applied Sciences, University of Fallujah, Al-anbar, Iraq
| | - Abduladheem Turki Jalil
- Medical Laboratories Techniques Department, Al-Mustaqbal University College, Babylon, Hilla, 51001, Iraq
| | - Waam Mohammed Taher
- National University of Science and Technology, Thi Qar University, Dhi Qar, Iraq
| | - Zafar Aminov
- Department of Public Health and Healthcare management, Samarkand State Medical University, 18 Amir Temur Street, Samarkand, Uzbekistan
- Department of Scientific Affairs, Tashkent State Dental Institute, 103 Makhtumkuli Str., Tashkent, Uzbekistan
| | - Fahad Alsaikhan
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
| | - Andrés Alexis Ramírez-Coronel
- Azogues Campus Nursing Career, Health and Behavior Research Group (HBR), Psychometry and Ethology Laboratory, Catholic University of Cuenca, Cuenca, Ecuador
- Epidemiology and Biostatistics Research Group, CES University, Medellín, Antioquia, 4440555, Colombia
- Educational Statistics Research Group (GIEE), National University of Education, Cvenca, Ecuador
| | | | - Bagher Farhood
- Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran
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Li C, Gao L, Lv C, Li Z, Fan S, Liu X, Rong X, Huang Y, Liu J. Active role of amino acid metabolism in early diagnosis and treatment of diabetic kidney disease. Front Nutr 2023; 10:1239838. [PMID: 37781128 PMCID: PMC10539689 DOI: 10.3389/fnut.2023.1239838] [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: 06/23/2023] [Accepted: 08/23/2023] [Indexed: 10/03/2023] Open
Abstract
Diabetic Kidney Disease (DKD) is one of the significant microvascular consequences of type 2 diabetes mellitus with a complex etiology and protracted course. In the early stages of DKD, the majority of patients experience an insidious onset and few overt clinical symptoms and indicators, but they are prone to develop end-stage renal disease in the later stage, which is life-threatening. The abnormal amino acid metabolism is tightly associated with the development of DKD, which involves several pathological processes such as oxidative stress, inflammatory response, and immune response and is also closely related to autophagy, mitochondrial dysfunction, and iron death. With a focus on taurine, branched-chain amino acids (BCAAs) and glutamine, we explored the biological effects of various amino acid mechanisms linked to DKD, the impact of amino acid metabolism in the early diagnosis of DKD, and the role of amino acid metabolism in treating DKD, to offer fresh objectives and guidelines for later early detection and DKD therapy.
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Affiliation(s)
- Chenming Li
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Clinical Pharmacology Department, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lidong Gao
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Modern Chinese Medicine Theory of Innovation and Application, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Chunxiao Lv
- Clinical Pharmacology Department, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ziqiang Li
- Clinical Pharmacology Department, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shanshan Fan
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Clinical Pharmacology Department, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinyue Liu
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Clinical Pharmacology Department, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinyi Rong
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Clinical Pharmacology Department, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuhong Huang
- Clinical Pharmacology Department, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jia Liu
- Clinical Pharmacology Department, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Chen VCH, Huang SL, Huang JY, Hsu TC, Tzang BS, McIntyre RS. Combined Administration of Escitalopram Oxalate and Nivolumab Exhibits Synergistic Growth-Inhibitory Effects on Liver Cancer Cells through Inducing Apoptosis. Int J Mol Sci 2023; 24:12630. [PMID: 37628813 PMCID: PMC10454364 DOI: 10.3390/ijms241612630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Liver cancer is one of the most lethal malignant cancers worldwide. However, the therapeutic options for advanced liver cancers are limited and reveal scant efficacy. The current study investigated the effects of nivolumab (Niv) and escitalopram oxalate (Esc) in combination on proliferation of liver cancer cells both in vitro and in vivo. Significantly decreased viability of HepG2 cells that were treated with Esc or Niv was observed in a dose-dependent manner at 24 h, 48 h, and 72 h. Administration of Esc (50 μM) + Niv (20 μM), Esc (75 μM) + Niv (5 μM), and Esc (75 μM) + Niv (20 μM) over 24 h exhibited synergistic effects, inhibiting the survival of HepG2 cells. Additionally, treatment with Esc (50 μM) + Niv (1 μM), Esc (50 μM) + Niv (20 μM), and Esc (75 μM) + Niv (20 μM) over 48 h exhibited synergistic effects, inhibiting the survival of HepG2 cells. Finally, treatment with Esc (50 μM) + Niv (1 μM), Esc (50 μM) + Niv (20 μM), and Esc (75 μM) + Niv (20 μM) for 72 h exhibited synergistic effects, inhibiting HepG2 survival. Com-pared with controls, HepG2 cells treated with Esc (50 μM) + Niv (20 μM) exhibited significantly increased sub-G1 portion and annexin-V signals. In a xenograft animal study, Niv (6.66 mg/kg) + Esc (2.5 mg/kg) significantly suppressed the growth of xenograft HepG2 tumors in nude mice. This study reports for the first time the synergistic effects of combined administration of Niv and Esc for inhibiting HepG2 cell proliferation, which may provide an alternative option for liver cancer treatment.
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Affiliation(s)
- Vincent Chin-Hung Chen
- Department of Psychiatry, School of Medicine, Chang Gung University, Taoyuan 33302, Taiwan;
- Department of Psychiatry, Chang Gung Medical Foundation, Chiayi Chang Gung Memorial Hospital, Chiayi 61303, Taiwan; (S.-L.H.); (J.-Y.H.)
| | - Shao-Lan Huang
- Department of Psychiatry, Chang Gung Medical Foundation, Chiayi Chang Gung Memorial Hospital, Chiayi 61303, Taiwan; (S.-L.H.); (J.-Y.H.)
| | - Jing-Yu Huang
- Department of Psychiatry, Chang Gung Medical Foundation, Chiayi Chang Gung Memorial Hospital, Chiayi 61303, Taiwan; (S.-L.H.); (J.-Y.H.)
| | - Tsai-Ching Hsu
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
- Immunology Center, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Bor-Show Tzang
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
- Immunology Center, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
- Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Roger S. McIntyre
- Mood Disorders Psychopharmacology Unit, University Health Network, University of Toronto, Toronto, ON M5T2S8, Canada;
- Department of Psychiatry, University of Toronto, Toronto, ON M5T1R8, Canada
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Sun J, Guo F, Ran J, Wu H, Li Y, Wang M, Wang X. Bibliometric and Visual Analysis of Global Research on Taurine, Creatine, Carnosine, and Anserine with Metabolic Syndrome: From 1992 to 2022. Nutrients 2023; 15:3374. [PMID: 37571314 PMCID: PMC10420945 DOI: 10.3390/nu15153374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Red meat and animal-sourced protein are often disparaged as risk factors for developing metabolic syndrome, while emerging research has shown the beneficial effects of dietary taurine, creatine, carnosine, and anserine which are all exclusively abundant in red meat. Thus, it is imperative to highlight the available evidence to help promote red meat as part of a well-balanced diet to optimize human health. In this study, a bibliometric analysis was conducted to investigate the current research status of dietary taurine, creatine, carnosine, and anserine with metabolic syndrome, identify research hotspots, and delineate developmental trends by utilizing the visualization software CiteSpace. A total of 1094 publications were retrieved via the Web of Science Core Collection from 1992 to 2022. There exists a gradual increase in the number of publications on this topic, but there is still much room for research papers to rise. The United States has participated in the most studies, followed by China and Japan. The University of Sao Paulo was the research institute contributing the most; Kyung Ja Chang and Sanya Roysommuti have been identified as the most prolific authors. The analysis of keywords reveals that obesity, lipid profiles, blood pressure, and glucose metabolism, as well as ergogenic aid and growth promoter have been the research hotspots. Inflammation and diabetic nephropathy will likely be frontiers of future research related to dietary taurine, creatine, carnosine, and anserine. Overall, this paper may provide insights for researchers to further delve into this field and enlist the greater community to re-evaluate the health effects of red meat.
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Affiliation(s)
- Jiaru Sun
- Department of Nursing, Xi’an Jiaotong University Health Science Center, 76 Yanta West Road, Xi’an 710061, China;
| | - Fang Guo
- School of Public Health, The University of Hong Kong, 7 Sassoon Road, Pok Fu Lam, Hong Kong, China; (H.W.); (Y.L.)
| | - Jinjun Ran
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China;
| | - Haisheng Wu
- School of Public Health, The University of Hong Kong, 7 Sassoon Road, Pok Fu Lam, Hong Kong, China; (H.W.); (Y.L.)
| | - Yang Li
- School of Public Health, The University of Hong Kong, 7 Sassoon Road, Pok Fu Lam, Hong Kong, China; (H.W.); (Y.L.)
| | - Mingxu Wang
- School of Public Health, Xi’an Jiaotong University Health Science Center, 76 Yanta West Road, Xi’an 710061, China
| | - Xiaoqin Wang
- Department of Nursing, Xi’an Jiaotong University Health Science Center, 76 Yanta West Road, Xi’an 710061, China;
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Liu H, Nguyen HH, Yoon KT, Lee SS. Pathogenic Mechanisms Underlying Cirrhotic Cardiomyopathy. FRONTIERS IN NETWORK PHYSIOLOGY 2022; 2:849253. [PMID: 36926084 PMCID: PMC10013066 DOI: 10.3389/fnetp.2022.849253] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/18/2022] [Indexed: 12/14/2022]
Abstract
Cardiac dysfunction associated with cirrhosis in the absence of preexisting heart disease is a condition known as cirrhotic cardiomyopathy (CCM). Cardiac abnormalities consist of enlargement of cardiac chambers, attenuated systolic and diastolic contractile responses to stress stimuli, and repolarization changes. CCM may contribute to cardiovascular morbidity and mortality after liver transplantation and other major surgeries, and also to the pathogenesis of hepatorenal syndrome. The underlying mechanisms of CCM are poorly understood and as such medical therapy is an area of unmet medical need. The present review focuses on the pathogenic mechanisms responsible for development of CCM. The two major concurrent mechanistic pathways are the inflammatory phenotype due to portal hypertension, and protein/lipid synthetic/metabolic defects due to cirrhosis and liver insufficiency. The inflammatory phenotype arises from intestinal congestion due to portal hypertension, resulting in bacteria/endotoxin translocation into the systemic circulation. The cytokine storm associated with inflammation, particularly TNFα acting via NFκB depresses cardiac function. They also stimulate two evanescent gases, nitric oxide and carbon monoxide which produce cardiodepression by cGMP. Inflammation also stimulates the endocannabinoid CB-1 pathway. These systems inhibit the stimulatory beta-adrenergic contractile pathway. The liver insufficiency of cirrhosis is associated with defective synthesis or metabolism of several substances including proteins and lipids/lipoproteins. The protein defects including titin and collagen contribute to diastolic dysfunction. Other protein abnormalities such as a switch of myosin heavy chain isoforms result in systolic dysfunction. Lipid biochemical changes at the cardiac sarcolemmal plasma membrane result in increased cholesterol:phospholipid ratio and decreased membrane fluidity. Final common pathway changes involve abnormal cardiomyocyte intracellular ion kinetics, particularly calcium. In conclusion, cirrhotic cardiomyopathy is caused by two pathways of cellular and molecular dysfunction/damage due to hepatic insufficiency and portal hypertension.
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Affiliation(s)
- Hongqun Liu
- Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB, Canada
| | - Henry H Nguyen
- Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB, Canada
| | - Ki Tae Yoon
- Liver Center, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Samuel S Lee
- Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB, Canada
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