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Age-Related Features of the Response of the Liver and Stem Cells during Modeling of Liver Cirrhosis. Bull Exp Biol Med 2021; 171:127-133. [PMID: 34046793 DOI: 10.1007/s10517-021-05184-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Indexed: 10/21/2022]
Abstract
We studied the age-related characteristics of the response of stem cells and liver in male Wistar rats to administration of carbon tetrachloride (CCl4) and ethanol. It was shown that modeling of liver cirrhosis caused inflammation, fibrosis, damage to sinusoidal capillaries, necrosis, and disturbances in the functional activity of hepatocytes in young rats. These processes were accompanied by mobilization of profibrotic mesenchymal stem cells (MSC), proinflammatory hematopoietic stem cells (HSC) and lymphocytes (CD45hiCD133+) from the bone marrow into the blood and migration to the liver. On the other hand, the number of hepatocyte precursors expressing Sox9 (cells of Hering's canal), immature cholangiocytes, Ito cells, oval cells, and endothelial cells of the liver sinusoids) sharply increased in the liver. In young rats, mobilization and migration of MSC, HSC, and hepatocyte precursors against the background of liver cirrhosis were more intensive than in old animals. The higher resistance of old rats to exposure is associated with age-related changes in the niches as well as in mobilization and migration of cells.
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152
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Szlęzak D, Bronowicka-Adamska P, Hutsch T, Ufnal M, Wróbel M. Hypertension and Aging Affect Liver Sulfur Metabolism in Rats. Cells 2021; 10:1238. [PMID: 34069923 PMCID: PMC8157544 DOI: 10.3390/cells10051238] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/05/2021] [Accepted: 05/14/2021] [Indexed: 12/15/2022] Open
Abstract
Hypertension and age are key risk factors for cardiovascular morbidity and mortality. Hydrogen sulfide (H2S), a gaseous transmitter, contributes significantly to regulating arterial blood pressure and aging processes. This study evaluated the effects of hypertension and aging on the hepatic metabolism of sulfur-containing compounds, the activity of the enzymes involved in sulfur homeostasis, and the liver's ability to generate H2S. Livers isolated from 16- and 60-week-old normotensive Wistar Kyoto rats (WKY) and Spontaneously Hypertensive Rats (SHR) were used to evaluate gene expression using RT-PCR, and the activity of enzymes participating in H2S metabolism, including thiosulfate sulfurtransferase (rhodanese; TST), cystathionine gamma-lyase (CTH), and 3-mercaptopyruvate sulfurtransferase (MPST). The levels of cysteine, cystine, reduced and oxidized glutathione were measured using RP-HPLC. SHR livers from both age groups showed a higher capacity to generate H2S than livers from WKY. The gene expression and activity of enzymes involved in sulfur metabolism differed between WKY and SHR, and between the age groups. For example, 16-week-old SHR had significantly higher activity of TST than 16-week-old WKY. Furthermore, differences between younger and older WKY rats in the expression and/or activity of TST and MPST were present. In conclusion, our study shows that arterial hypertension and aging affect hepatic sulfur metabolism and H2S production in rats. These findings pave the way for interventional studies evaluating a potential causal relation between liver sulfur metabolism, hypertension and aging.
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Affiliation(s)
- Dominika Szlęzak
- Jagiellonian University Medical College, Faculty of Medicine, Chair of Medical Biochemistry, 7 Kopernika St., 31-034 Kraków, Poland
| | - Patrycja Bronowicka-Adamska
- Jagiellonian University Medical College, Faculty of Medicine, Chair of Medical Biochemistry, 7 Kopernika St., 31-034 Kraków, Poland
| | - Tomasz Hutsch
- Laboratory of the Centre for Preclinical Research, Department of Physiology and Experimental Pathophysiology, Medical University of Warsaw, 1B Banacha St., 02-097 Warsaw, Poland
- Veterinary Diagnostic Laboratory ALAB Bioscience, ALAB Plus Sp. z o.o., 13 Krucza St., 05-090 Rybie, Poland
| | - Marcin Ufnal
- Laboratory of the Centre for Preclinical Research, Department of Physiology and Experimental Pathophysiology, Medical University of Warsaw, 1B Banacha St., 02-097 Warsaw, Poland
| | - Maria Wróbel
- Jagiellonian University Medical College, Faculty of Medicine, Chair of Medical Biochemistry, 7 Kopernika St., 31-034 Kraków, Poland
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153
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Azman KF, Safdar A, Zakaria R. D-galactose-induced liver aging model: Its underlying mechanisms and potential therapeutic interventions. Exp Gerontol 2021; 150:111372. [PMID: 33905879 DOI: 10.1016/j.exger.2021.111372] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/20/2021] [Accepted: 04/20/2021] [Indexed: 01/02/2023]
Abstract
Aging is associated with a variety of morphological and functional changes in the liver. Oxidative stress and inflammation are now widely accepted as the main mechanisms involved in the aging process that may subsequently cause severe injury to mitochondrial DNA which leads to apoptosis. As aging may increase the risks for various liver diseases and plays as an adverse prognostic factor increasing the mortality rate, knowledge regarding the mechanisms of age-related liver susceptibility and the possible therapeutic interventions is imperative. Due to cost and time constraints, a mimetic aging model is generally preferred to naturally aged animals to study the underlying mechanisms of aging liver. The use of D-galactose in aging research is dated back to 1962 and has since been used widely. This review aims to comprehensively summarize the effects of D-galactose-induced aging on the liver and the underlying mechanisms involved. Its potential therapeutic interventions are also discussed. It is hoped that this invaluable information may facilitate researchers in choosing the appropriate aging model and provide a valuable platform for testing potential therapeutic strategies for the prevention and treatment of age-related liver diseases.
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Affiliation(s)
- Khairunnuur Fairuz Azman
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kota Bharu, Kelantan, Malaysia.
| | - Afifa Safdar
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kota Bharu, Kelantan, Malaysia
| | - Rahimah Zakaria
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kota Bharu, Kelantan, Malaysia
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154
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Chung KW. Advances in Understanding of the Role of Lipid Metabolism in Aging. Cells 2021; 10:cells10040880. [PMID: 33924316 PMCID: PMC8068994 DOI: 10.3390/cells10040880] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 02/06/2023] Open
Abstract
During aging, body adiposity increases with changes in the metabolism of lipids and their metabolite levels. Considering lipid metabolism, excess adiposity with increased lipotoxicity leads to various age-related diseases, including cardiovascular disease, cancer, arthritis, type 2 diabetes, and Alzheimer's disease. However, the multifaceted nature and complexities of lipid metabolism make it difficult to delineate its exact mechanism and role during aging. With advances in genetic engineering techniques, recent studies have demonstrated that changes in lipid metabolism are associated with aging and age-related diseases. Lipid accumulation and impaired fatty acid utilization in organs are associated with pathophysiological phenotypes of aging. Changes in adipokine levels contribute to aging by modulating changes in systemic metabolism and inflammation. Advances in lipidomic techniques have identified changes in lipid profiles that are associated with aging. Although it remains unclear how lipid metabolism is regulated during aging, or how lipid metabolites impact aging, evidence suggests a dynamic role for lipid metabolism and its metabolites as active participants of signaling pathways and regulators of gene expression. This review describes recent advances in our understanding of lipid metabolism in aging, including established findings and recent approaches.
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Affiliation(s)
- Ki Wung Chung
- College of Pharmacy, Pusan National University, Busan 46214, Korea
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155
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Lee BT, Odin JA, Grewal P. An Approach to Drug-Induced Liver Injury from the Geriatric Perspective. Curr Gastroenterol Rep 2021; 23:6. [PMID: 33846832 DOI: 10.1007/s11894-021-00804-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2021] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW With its high variability in both presentation and severity, drug-induced liver injury (DILI) is a complex condition increasingly confronting all providers. DILI has an even more muddled presentation among the geriatric population due to age-related changes in liver physiology and biochemistry as well as polypharmacy common in the geriatric population. RECENT FINDINGS Most cases of DILI are idiosyncratic and unpredictable. DILI, especially related to herbal and dietary supplement (HDS) use, is increasingly recognized as a leading cause of acute liver failure and need for liver transplantation. Unfortunately, liver transplantation is a limited option for the elderly, a population that exhibits significant HDS use. One recent study suggests that early use of N-acetylcysteine may be useful in preventing progression to acute liver failure in non-acetaminophen DILI. In the future, a personalized medicine approach using genomic signatures may be feasible to prevent DILI. This review serves to raise recognition of the unique aspects of DILI in the geriatric population to promote rapid diagnosis and early intervention to prevent progression to liver failure and death. For now, DILI remains a diagnosis of exclusion, and care providers for the elderly must focus on obtaining a thorough history that includes HDS use and intervening early in suspected DILI cases.
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Affiliation(s)
- Brian T Lee
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Joseph A Odin
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. .,Recanati/Miller Transplantation Institute, The Mount Sinai Hospital, New York, NY, USA.
| | - Priya Grewal
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Recanati/Miller Transplantation Institute, The Mount Sinai Hospital, New York, NY, USA
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156
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Hoang NMH, Kim S, Nguyen HD, Kim M, Kim J, Kim BC, Park D, Lee S, Yu BP, Chung HY, Kim MS. Age-Dependent Sensitivity to the Neurotoxic Environmental Metabolite, 1,2-Diacetylbenzene. Biomol Ther (Seoul) 2021; 29:399-409. [PMID: 33820880 PMCID: PMC8255141 DOI: 10.4062/biomolther.2020.208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/13/2021] [Accepted: 02/10/2021] [Indexed: 01/15/2023] Open
Abstract
1,2-Diacetylbenzene (DAB) is a metabolite of 1,2-diethylbenzene, which is commonly used in the manufacture of plastics and gasoline. We examined the neurotoxic effects of DAB in young and old rats, particularly its effects on hippocampus. Previously, we reported DAB impairs hippocampal neurogenesis but that the underlying mechanism remained unclear. In this study, we evaluate the toxicities exhibited by DAB in the hippocampi of 6-month-old (young) and 20-month-old (old) male SD rats by treating animals intraperitoneally with DAB at 3 mg/kg/day for 1 week. Hippocampal areas were dissected from brains and RNA was extracted and subjected to RNA-seq analysis. RNA results showed animals exhibited age-dependent sensitivity to the neurotoxic effects of DAB. We observed that inflammatory pathways were up-regulated in old rats but that metabolism- and detoxification-related pathways were up-regulated in young rats. This result in old rats, especially upregulation of the TREM1 signaling pathway (an inflammatory response involved in Alzheimer’s disease (AD)) was confirmed by RT-PCR. Our study results provide a better understanding of age-dependent responses to DAB and new insight into the association between DAB and AD.
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Affiliation(s)
- Ngoc Minh Hong Hoang
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Sungjin Kim
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Hai Duc Nguyen
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Minjo Kim
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Jin Kim
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Byoung-Chul Kim
- Systems Toxicology Research Center, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
| | - Daeui Park
- Systems Toxicology Research Center, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
| | - Sujun Lee
- Department of Pharmacology, College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Byung Pal Yu
- Department of Physiology, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Hae Young Chung
- Molecular Inflammation Research Center for Aging Intervention (MRCA), Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Min-Sun Kim
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 57922, Republic of Korea
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Genc Yavuz B, Colak S, Guven R, Altundag İ, Seyhan AU, Gunay Inanc R. Clinical Features of the 60 Years and Older Patients Infected with 2019 Novel Coronavirus: Can We Predict Mortality Earlier? Gerontology 2021; 67:433-440. [PMID: 33784699 PMCID: PMC8089449 DOI: 10.1159/000514481] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 01/15/2021] [Indexed: 11/23/2022] Open
Abstract
Introduction The novel coronavirus (COVID-19), which has affected over 100 countries in a short while, progresses more mortally in elderly patients with comorbidities. In this study, we examined the epidemiological, clinical, and laboratory characteristics of the patients aged 60 and over who had been infected with COVID-19. Methods The data of the patients admitted to the hospital within 1 month from May 8, 2020 onwards and hospitalized for COVID-19 pneumonia were obtained from the hospital medical records, and the epidemiological, clinical, and laboratory parameters of the patients during the admission to the emergency department were examined. Patients were divided into 2 groups regarding the criteria of having in-hospital mortality (mortality group) and being discharged with full recovery (survivor group). The factors, which could have an impact on the mortality, were investigated using a univariate and multivariate logistic regression analysis. Results This retrospective study included 113 patients aged 60 years and older, with a confirmed diagnosis of COVID-19 pneumonia. The mean age of the patients was 70.7 ± 7.9, and 64.6% (n = 73) of them were male. The mortality rate was 19.4% (n = 22). Among the comorbid illnesses, only renal failure was significant in the mortality group (p = 0.04). A CURB-65score ≥3 or pneumonia severity index (PSI) class ≥4 manifested a remarkable discrimination ability to predict 30-day mortality (p < 0.001). When the laboratory parameters were considered, the value of neutrophil to lymphocyte ratio (NLR) was significant in predicting mortality in univariate and multivariate analysis (odds ratio [OR] = 1.11; 95% confidence interval [95% CI], 1.03–1.21; p = 0.006, and OR = 1.51; 95% CI, 1.11–2.39; p = 0.044, respectively). Conclusion In our study, NLR was determined to be an independent marker to predict in-hospital mortality among patients with COVID-19. PSI and CURB-65 revealed a considerably precise prognostic accuracy for the patients with COVID-19 in our study as well. Moreover, thanks to that NLR results in a very short time, it can enable the clinician to predict mortality before the scoring systems are calculated and hasten the management of the patients in the chaotic environment of the emergency room.
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Affiliation(s)
- Burcu Genc Yavuz
- Department of Emergency Medicine, Haydarpasa Numune Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Sahin Colak
- Department of Emergency Medicine, Haydarpasa Numune Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Ramazan Guven
- Department of Emergency Medicine, Kanuni Sultan Süleyman Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - İbrahim Altundag
- Department of Emergency Medicine, Haydarpasa Numune Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Avni Uygar Seyhan
- Department of Emergency Medicine, Kartal Dr. Lütfi Kırdar City Hospital, University of Health Sciences, Istanbul, Turkey
| | - Rumeysa Gunay Inanc
- Department of Emergency Medicine, Haydarpasa Numune Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
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158
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Chou YT, Li CH, Sun ZJ, Shen WC, Yang YC, Lu FH, Chang CJ, Wu JS. A Positive Relationship between Betel Nut Chewing and Significant Liver Fibrosis in NAFLD Subjects, but Not in Non-NAFLD Ones. Nutrients 2021; 13:nu13030914. [PMID: 33799865 PMCID: PMC7998430 DOI: 10.3390/nu13030914] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/27/2021] [Accepted: 03/08/2021] [Indexed: 02/06/2023] Open
Abstract
Background: Betel nut chewing is associated with oral cancer, cardiovascular disease, liver cirrhosis, and hepatocellular carcinoma (HCC). The aim of this study was to explore the association of betel nut chewing with liver fibrosis in subjects with and without nonalcoholic fatty liver disease (NAFLD). Method: A total of 5967 subjects were enrolled. NAFLD was diagnosed with ultrasonography. Betel nut chewing was classified into non-chewing, ex-chewing, and current chewing, and cumulative dosages were calculated. The aspartate aminotransferase (AST)/platelet ratio index and NAFLD fibrosis scores (NFS) were calculated for evaluation of liver fibrosis. Results: NAFLD increased the associated risk of liver fibrosis in those with (odds ratio (OR): 5.51, 95% confidence interval (CI): 3.09–9.80) and without betel nut chewing (OR: 2.33, 95% CI: 1.64–3.29). In subjects without NAFLD, betel nut chewing was not associated with liver fibrosis (OR: 1.12, 95% CI: 0.44–2.86). In subjects with NAFLD, cumulative betel nut chewing and ex- and current chewing were positively associated with NFS and significant liver fibrosis. Conclusions: In subjects with NAFLD, betel nut chewing, even ex-chewing, was associated with a higher risk of liver fibrosis, where higher cumulative levels were found to increase the risk of significant liver fibrosis. However, the associated risk of liver fibrosis due to betel nut chewing was insignificant in subjects without NAFLD.
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Affiliation(s)
- Yu-Tsung Chou
- Department of Health Management Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Y.-T.C.); (C.-H.L.)
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Z.-J.S.); (W.-C.S.); (Y.-C.Y.); (F.-H.L.)
| | - Chung-Hao Li
- Department of Health Management Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Y.-T.C.); (C.-H.L.)
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Z.-J.S.); (W.-C.S.); (Y.-C.Y.); (F.-H.L.)
| | - Zih-Jie Sun
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Z.-J.S.); (W.-C.S.); (Y.-C.Y.); (F.-H.L.)
- Department of Family Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Department of Family Medicine, National Cheng Kung University Hospital Dou-Liou Branch, College of Medicine, National Cheng Kung University, Yunlin 64043, Taiwan
| | - Wei-Chen Shen
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Z.-J.S.); (W.-C.S.); (Y.-C.Y.); (F.-H.L.)
| | - Yi-Ching Yang
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Z.-J.S.); (W.-C.S.); (Y.-C.Y.); (F.-H.L.)
- Department of Family Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Feng-Hwa Lu
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Z.-J.S.); (W.-C.S.); (Y.-C.Y.); (F.-H.L.)
- Department of Family Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chih-Jen Chang
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Z.-J.S.); (W.-C.S.); (Y.-C.Y.); (F.-H.L.)
- Department of Family Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Department of Family Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi 60002, Taiwan
- Correspondence: (C.-J.C.); (J.-S.W.); Tel.: +886-6-2353535 (ext. 5210) (J.-S.W.)
| | - Jin-Shang Wu
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan; (Z.-J.S.); (W.-C.S.); (Y.-C.Y.); (F.-H.L.)
- Department of Family Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Department of Family Medicine, National Cheng Kung University Hospital Dou-Liou Branch, College of Medicine, National Cheng Kung University, Yunlin 64043, Taiwan
- Correspondence: (C.-J.C.); (J.-S.W.); Tel.: +886-6-2353535 (ext. 5210) (J.-S.W.)
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Bafna P, Sahoo RR, Hazarika K, Manoj M, Rungta S, Wakhlu A. Prevalence of liver fibrosis by Fibroscan in patients on long-term methotrexate therapy for rheumatoid arthritis. Clin Rheumatol 2021; 40:3605-3613. [PMID: 33686476 DOI: 10.1007/s10067-021-05678-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Data on the long-term use of methotrexate (MTX) causing liver fibrosis in patients with rheumatoid arthritis (RA) is sparse. Liver biopsy is the gold standard to assess fibrosis but is an invasive procedure. Transient elastography (TE) by Fibroscan is a noninvasive validated tool to detect and quantify liver fibrosis. The present study aimed to assess the prevalence of liver fibrosis by Fibroscan in patients with RA on long-term MTX therapy and its correlation with cumulative dose of MTX. METHODS This cross-sectional study included adult patients (≥ 18 years age) of RA who had been on MTX for ≥ 3 years. The patients' records were reviewed, and the cumulative dose of MTX was calculated. Liver fibrosis was assessed by TE method, and the cutoff value of 7.1 kPa (kilopascal) was considered abnormal (liver fibrosis). Spearman's rank test was used to assess the correlation between the cumulative dose of MTX and Fibroscan score. RESULTS Seventy-five patients were enrolled of which 69 were females (92%). The mean age was 47.2 ± 11.3 years. The mean body mass index and waist circumference were 24.8 ± 3.9 kg/m2 and 91.6 ± 9.9 cm, respectively. The median duration and cumulative dose of MTX were 336 weeks (interquartile range,144-912 weeks) and 6300 mg (interquartile range, 2400-22,000 mg), respectively. The mean liver stiffness was 5.22 ± 2.03 kPa. Twelve patients (16%) had Fibroscan score ≥ 7.1 kPa, of which 3 patients had severe liver stiffness (9.5 to 12.5 kPa) and one patient had liver stiffness in the range of cirrhosis (> 12.5 kPa). Fibroscan scores significantly correlated with cumulative dose of MTX (r= 0.30, p = 0.008). CONCLUSIONS Long-term MTX therapy in RA was associated with increased liver stiffness on Fibroscan. Key Points • Fibroscan is a useful tool for monitoring MTX-induced liver fibrosis. • Liver fibrosis as evidenced by increased liver stiffness on Fibroscan is prevalent among patients on long-term MTX therapy for RA.
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Affiliation(s)
- Prashant Bafna
- Department of Clinical Immunology and Rheumatology, King George's Medical University, Lucknow, 226003, India
| | - Rasmi Ranjan Sahoo
- Department of Clinical Immunology and Rheumatology, King George's Medical University, Lucknow, 226003, India
| | - Kasturi Hazarika
- Department of Clinical Immunology and Rheumatology, King George's Medical University, Lucknow, 226003, India
| | - Manesh Manoj
- Department of Clinical Immunology and Rheumatology, King George's Medical University, Lucknow, 226003, India
| | - Sumit Rungta
- Department of Medical Gastroenterology, King George's Medical University, Lucknow, 226003, India
| | - Anupam Wakhlu
- Department of Clinical Immunology and Rheumatology, King George's Medical University, Lucknow, 226003, India.
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The incidence trends of liver cirrhosis caused by nonalcoholic steatohepatitis via the GBD study 2017. Sci Rep 2021; 11:5195. [PMID: 33664363 PMCID: PMC7933440 DOI: 10.1038/s41598-021-84577-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 02/17/2021] [Indexed: 12/11/2022] Open
Abstract
Nonalcoholic steatohepatitis (NASH) has rapidly become the most common cause of chronic liver diseases. We aimed to explore the incidence and distribution characteristics of NASH by sex, region and sociodemographic index (SDI). We collected data, including sex and region, on NASH-related liver cirrhosis from the 2017 GBD study. The age-standardized incidence rates (ASRs) and estimated annual percentage changes (EAPCs) were used to estimate the incidence trend and distribution characteristics. Globally, the incidence of liver cirrhosis caused by NASH increased from 178,430 cases in 1990 to 367,780 cases in 2017, an increase of approximately 105.56%. The ASR of NASH increased by an average of 1.35% per year (95% CI 1.28–1.42). Meanwhile, large differences in the ASR and the EAPC were observed across regions. The middle-high SDI region had the highest increase among all five SDI regions, followed by middle SDI region. In addition, Eastern Europe, Andean Latin America and Central Asia showed a more significant growth trend of ASR. In contrast, the high SDI region demonstrated the slowest increasing trend of ASR, and the high-income Asia Pacific demonstrated a decreasing trend among the 21 regions. Liver cirrhosis has caused a huge and rising health burden in many countries and regions. In addition, with the growth of obesity, population and aging, NASH might replace viral hepatitis as the most important cause of liver cirrhosis in the near future. Therefore, appropriate interventions are needed in coming decades to realize early diagnosis and prevention of NASH-related liver cirrhosis.
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Nagai N, Kudo Y, Aki D, Nakagawa H, Taniguchi K. Immunomodulation by Inflammation during Liver and Gastrointestinal Tumorigenesis and Aging. Int J Mol Sci 2021; 22:ijms22052238. [PMID: 33668122 PMCID: PMC7956754 DOI: 10.3390/ijms22052238] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 02/19/2021] [Indexed: 12/19/2022] Open
Abstract
Chronic inflammation is thought to promote tumorigenesis and metastasis by several mechanisms, such as affecting tumor cells directly, establishing a tumor-supporting microenvironment, enhancing tumor angiogenesis, and suppressing antitumor immunity. In this review, we discuss the recent advances in our understanding of how inflammation induces the immunosuppressive tumor microenvironment, such as increasing the level of pro-inflammatory cytokines, chemokines, and immunosuppressive molecules, inducing immune checkpoint molecules and cytotoxic T-cell exhaustion, and accumulating regulatory T (Treg) cells and myeloid-derived suppressor cells (MDSCs). The suppression of antitumor immunity by inflammation is especially examined in the liver and colorectal cancer. In addition, chronic inflammation is induced during aging and causes age-related diseases, including cancer, by affecting immunity. Therefore, we also discuss the age-related diseases regulated by inflammation, especially in the liver and colon.
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Affiliation(s)
- Nao Nagai
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; (N.N.); (D.A.)
| | - Yotaro Kudo
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; (Y.K.); (H.N.)
| | - Daisuke Aki
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; (N.N.); (D.A.)
| | - Hayato Nakagawa
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; (Y.K.); (H.N.)
| | - Koji Taniguchi
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; (N.N.); (D.A.)
- Department of Pathology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan
- Correspondence: ; Tel.: +81-3-5363-3483
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Subramaniyan V, Chakravarthi S, Jegasothy R, Seng WY, Fuloria NK, Fuloria S, Hazarika I, Das A. Alcohol-associated liver disease: A review on its pathophysiology, diagnosis and drug therapy. Toxicol Rep 2021; 8:376-385. [PMID: 33680863 PMCID: PMC7910406 DOI: 10.1016/j.toxrep.2021.02.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 12/13/2022] Open
Abstract
One of the global burdens of health care is an alcohol-associated liver disease (ALD) and liver-related death which is caused due to acute or chronic consumption of alcohol. Chronic consumption of alcohol damage the normal defense mechanism of the liver and likely to disturb the gut barrier system, mucosal immune cells, which leads to decreased nutrient absorption. Therapy of ALD depends upon the spectrum of liver injury that causes fatty liver, hepatitis, and cirrhosis. The foundation of therapy starts with abstinence from alcohol. Corticosteroids are used for the treatment of ALD but due to poor acceptance, continuing mortality, and identification of tumor necrosis factor-alpha as an integral component in pathogenesis, recent studies focus on pentoxifylline and, antitumor necrosis factor antibody to neutralize cytokines in the therapy of severe alcoholic hepatitis. Antioxidants also play a significant role in the treatment but till today there is no universally accepted therapy available for any stage of ALD. The treatment aspects need to restore the gut functions and require nutrient-based treatments to regulate the functions of the gut system and prevent liver injury. The vital action of saturated fatty acids greatly controls the gut barrier. Overall, this review mainly focuses on the mechanism of alcohol-induced metabolic dysfunction, contribution to liver pathogenesis, the effect of pregnancy, and targeted therapy of ALD.
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Key Words
- ALD, alcohol associated liver disease
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- Alcohol
- CD14, cluster of differentiation14
- CHD, congenital heart disease
- ECM, extracellualr matrix
- FASD, fetal alcohol spectrum disorders
- FDA, food and drug administration
- GGTP, gamma-glutamyl transpeptidase
- GSH, Glutathione
- H2O2, hydrogen peroxide
- HCV, chronic hepatitis C
- HSC, hepatic stellate cells
- IGR, intrauterine growth retardation
- IL, interleukin
- Immune modulation
- JECH, Japan Environment and Children's Study
- Liver pathogenesis
- MDF, maddrey’s discriminant function
- NA, nutritional assessment
- NAC, N-acetylcysteine
- NADPH, Nicotinamide adenine dinucleotide phosphate
- OLT, Orthotopic liver transplantation
- Pregnancy
- ROS, reactive oxygen species
- TLR4, toll-like receptor 4
- TNF, Tumor necrosis factor
- Targeted therapy
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Affiliation(s)
- Vetriselvan Subramaniyan
- Department of Pharmacology, Faculty of Medicine, Bioscience and Nursing, MAHSA University, SP 2, Bandar Saujana Putra, 42610, Malaysia
| | - Srikumar Chakravarthi
- Department of Pathology, Faculty of Medicine, Bioscience and Nursing, MAHSA University, SP 2, Bandar Saujana Putra, 42610, Malaysia
| | - Ravindran Jegasothy
- Department of Obstetrics and Gynecology, Faculty of Medicine, Bioscience and Nursing, MAHSA University, SP 2, Bandar Saujana Putra, 42610, Malaysia
| | - Wu Yuan Seng
- Department of Biochemistry, Faculty of Medicine, Bioscience and Nursing, MAHSA University, SP 2, Bandar Saujana Putra, 42610, Malaysia
| | - Neeraj Kumar Fuloria
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy AIMST University, Jalan Bedong-Semeling, 08100, Malaysia
| | - Shivkanya Fuloria
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy AIMST University, Jalan Bedong-Semeling, 08100, Malaysia
| | - Iswar Hazarika
- Department of Pharmacology, Girijananda Chowdhury Institute of Pharmaceutical Sciences, Guwahati, 781017, India
| | - Anju Das
- Department of Pharmacology, Royal School of Pharmacy, Royal Global University, Guwahati, 781035, India
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163
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Welch N, Attaway A, Bellar A, Alkhafaji H, Vural A, Dasarathy S. Compound Sarcopenia in Hospitalized Patients with Cirrhosis Worsens Outcomes with Increasing Age. Nutrients 2021; 13:nu13020659. [PMID: 33670535 PMCID: PMC7923160 DOI: 10.3390/nu13020659] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/10/2021] [Accepted: 02/13/2021] [Indexed: 02/07/2023] Open
Abstract
Background: There are limited data on outcomes of older patients with chronic diseases. Skeletal muscle loss of aging (primary sarcopenia) has been extensively studied but the impact of secondary sarcopenia of chronic disease is not as well evaluated. Older patients with chronic diseases have both primary and secondary sarcopenia that we term compound sarcopenia. We evaluated the clinical impact of compound sarcopenia in hospitalized patients with cirrhosis given the increasing number of patients and high prevalence of sarcopenia in these patients. Design: The Nationwide Inpatients Sample (NIS) database (years 2010–2014) was analyzed to study older patients with cirrhosis. Since there is no universal hospital diagnosis code for “muscle loss”, we used a comprehensive array of codes for “muscle loss phenotype” in the international classification of diseases-9 (ICD-9). A randomly selected 2% sample of hospitalized general medical population (GMP) and inpatients with cirrhosis were stratified into 3 age groups based on age-related changes in muscle mass. In-hospital mortality, length of stay (LoS), cost of hospitalization (CoH), comorbidities and discharge disposition were analyzed. Results. Of 517,605 hospitalizations for GMP and 106,835 hospitalizations for treatment of cirrhosis or a cirrhosis-related complication, 207,266 (40.4%) GMP and 29,018 (27.7%) patients with cirrhosis were >65 years old, respectively. Muscle loss phenotype in both GMP and inpatients with cirrhosis 51–65 years old and >65 years old was significantly (p < 0.001 for all) associated with higher mortality, LoS, and CoH compared to those ≤50 years old. Patients >65 years old with cirrhosis and muscle loss phenotype had higher mortality (adjusted OR: 1.06, 95% CI [1.04, 1.08] and CoH (adjusted odds ratio (OR): 1.10, 95% confidence interval (CI) [1.04, 1.08])) when compared to >65 years old GMP with muscle loss phenotype. Muscle loss in younger patients with cirrhosis (≤50 years old) was associated with worse outcomes compared to GMP >65 years old. Non-home discharges (nursing, skilled, long-term care) were more frequent with increasing age to a greater extent in patients with cirrhosis with muscle loss phenotype for each age stratum. Conclusion: Muscle loss is more frequent in older patients with cirrhosis than younger patients with cirrhosis and older GMP. Younger patients with cirrhosis had clinical outcomes similar to those of older GMP, suggesting an accelerated senescence in cirrhosis. Compound sarcopenia in older patients with cirrhosis is associated with higher inpatient mortality, increased LoS, and CoH compared to GMP with sarcopenia.
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Affiliation(s)
- Nicole Welch
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH 44195, USA;
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA; (A.B.); (H.A.); (A.V.)
| | - Amy Attaway
- Department of Pulmonary Medicine, Cleveland Clinic, Cleveland, OH 44195, USA;
| | - Annette Bellar
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA; (A.B.); (H.A.); (A.V.)
| | - Hayder Alkhafaji
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA; (A.B.); (H.A.); (A.V.)
| | - Adil Vural
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA; (A.B.); (H.A.); (A.V.)
| | - Srinivasan Dasarathy
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, OH 44195, USA;
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, OH 44195, USA; (A.B.); (H.A.); (A.V.)
- Correspondence:
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164
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Xu F, Tautenhahn HM, Dirsch O, Dahmen U. Modulation of Autophagy: A Novel "Rejuvenation" Strategy for the Aging Liver. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6611126. [PMID: 33628363 PMCID: PMC7889356 DOI: 10.1155/2021/6611126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/08/2020] [Accepted: 01/23/2021] [Indexed: 12/11/2022]
Abstract
Aging is a natural life process which leads to a gradual decline of essential physiological processes. For the liver, it leads to alterations in histomorphology (steatosis and fibrosis) and function (protein synthesis and energy generation) and affects central hepatocellular processes (autophagy, mitochondrial respiration, and hepatocyte proliferation). These alterations do not only impair the metabolic capacity of the liver but also represent important factors in the pathogenesis of malignant liver disease. Autophagy is a recycling process for eukaryotic cells to degrade dysfunctional intracellular components and to reuse the basic substances. It plays a crucial role in maintaining cell homeostasis and in resisting environmental stress. Emerging evidence shows that modulating autophagy seems to be effective in improving the age-related alterations of the liver. However, autophagy is a double-edged sword for the aged liver. Upregulating autophagy alleviates hepatic steatosis and ROS-induced cellular stress and promotes hepatocyte proliferation but may aggravate hepatic fibrosis. Therefore, a well-balanced autophagy modulation strategy might be suitable to alleviate age-related liver dysfunction. Conclusion. Modulation of autophagy is a promising strategy for "rejuvenation" of the aged liver. Detailed knowledge regarding the most devastating processes in the individual patient is needed to effectively counteract aging of the liver without causing obvious harm.
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Affiliation(s)
- Fengming Xu
- Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena 07747, Germany
| | - Hans-Michael Tautenhahn
- Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena 07747, Germany
| | - Olaf Dirsch
- Institute of Pathology, Klinikum Chemnitz gGmbH, Chemnitz 09111, Germany
| | - Uta Dahmen
- Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena 07747, Germany
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165
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Wei J, Xiang J, Yasin Y, Barszczyk A, Wah DTO, Yu M, Huang WW, Feng ZP, Lee K, Luo H. Physical Features and Vital Signs Predict Serum Albumin and Globulin Concentrations Using Machine Learning. Asian Pac J Cancer Prev 2021; 22:333-340. [PMID: 33639645 PMCID: PMC8190348 DOI: 10.31557/apjcp.2021.22.2.333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 01/19/2021] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE Serum protein concentrations are diagnostically and prognostically valuable in cancer and other diseases, but their measurement via blood test is uncomfortable, inconvenient, and costly. This study investigates the possibility of predicting albumin, globulin, and albumin-globulin ratio from easily accessible physical characteristics (height, weight, Body Mass Index, age, gender) and vital signs (systolic blood pressure, diastolic blood pressure, mean arterial pressure, pulse pressure, pulse) using advanced machine learning techniques. METHODS We obtained albumin concentration, globulin concentration, albumin-globulin ratio and predictor information (physical characteristics, vital signs) from physical exam records of 46,951 healthy adult participants in Hangzhou, China. We trained a computational model to predict each serum protein concentration from the predictors and then evaluated the predictive accuracy of each model on an independent portion of the dataset that was not used in model training. We also determined the relative importance of each feature within the model. RESULTS Prediction accuracies were r=0.540 (95% CI: 0.539-0.540; Pearson r) for albumin, r=0.250 (95% CI: 0.249-0.251) for globulin, and r=0.373 (95% CI: 0.372-0.374) for albumin-globulin ratio. The most important predictive features were age (100% ± 0.0%; mean ± 95% CI of normalized importance), gender (34.4% ± 0.7%), pulse (25.6% ± 1.3%) and Body Mass Index (24.4% ± 2.3%) for albumin, pulse (83.7% ± 3.8%) for globulin, and age (99.2% ± 1.0%), gender (59.2% ± 1.7%), Body Mass Index (46.1% ± 4.2%) and height (40.0% ± 3.8%) for albumin-globulin ratio. CONCLUSIONS Our models predicted serum protein concentrations with appreciable accuracy showing the promise of this approach. Such models could serve to augment existing tools for identifying "at-risk" individuals for follow-up with a blood test.
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Affiliation(s)
- Jing Wei
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University. Hangzhou, Zhejiang, People’s Republic of China.
| | - Jie Xiang
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University. Hangzhou, Zhejiang, People’s Republic of China.
| | - Yousef Yasin
- Department of Applied Psychology and Human Development, Ontario Institute for Studies in Education, University of Toronto, Toronto, Ontario, Canada.
| | - Andrew Barszczyk
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada.
| | - Deanne Tak On Wah
- Department of Applied Psychology and Human Development, Ontario Institute for Studies in Education, University of Toronto, Toronto, Ontario, Canada.
| | - Meifen Yu
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University. Hangzhou, Zhejiang, People’s Republic of China.
| | - Wendy Wenyu Huang
- Department of Applied Psychology and Human Development, Ontario Institute for Studies in Education, University of Toronto, Toronto, Ontario, Canada.
| | - Zhong-Ping Feng
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada.
| | - Kang Lee
- Department of Applied Psychology and Human Development, Ontario Institute for Studies in Education, University of Toronto, Toronto, Ontario, Canada.
| | - Hong Luo
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University. Hangzhou, Zhejiang, People’s Republic of China.
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166
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Wang Y, Brodin E, Nishii K, Frieboes HB, Mumenthaler SM, Sparks JL, Macklin P. Impact of tumor-parenchyma biomechanics on liver metastatic progression: a multi-model approach. Sci Rep 2021; 11:1710. [PMID: 33462259 PMCID: PMC7813881 DOI: 10.1038/s41598-020-78780-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 11/24/2020] [Indexed: 12/17/2022] Open
Abstract
Colorectal cancer and other cancers often metastasize to the liver in later stages of the disease, contributing significantly to patient death. While the biomechanical properties of the liver parenchyma (normal liver tissue) are known to affect tumor cell behavior in primary and metastatic tumors, the role of these properties in driving or inhibiting metastatic inception remains poorly understood, as are the longer-term multicellular dynamics. This study adopts a multi-model approach to study the dynamics of tumor-parenchyma biomechanical interactions during metastatic seeding and growth. We employ a detailed poroviscoelastic model of a liver lobule to study how micrometastases disrupt flow and pressure on short time scales. Results from short-time simulations in detailed single hepatic lobules motivate constitutive relations and biological hypotheses for a minimal agent-based model of metastatic growth in centimeter-scale tissue over months-long time scales. After a parameter space investigation, we find that the balance of basic tumor-parenchyma biomechanical interactions on shorter time scales (adhesion, repulsion, and elastic tissue deformation over minutes) and longer time scales (plastic tissue relaxation over hours) can explain a broad range of behaviors of micrometastases, without the need for complex molecular-scale signaling. These interactions may arrest the growth of micrometastases in a dormant state and prevent newly arriving cancer cells from establishing successful metastatic foci. Moreover, the simulations indicate ways in which dormant tumors could "reawaken" after changes in parenchymal tissue mechanical properties, as may arise during aging or following acute liver illness or injury. We conclude that the proposed modeling approach yields insight into the role of tumor-parenchyma biomechanics in promoting liver metastatic growth, and advances the longer term goal of identifying conditions to clinically arrest and reverse the course of late-stage cancer.
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Affiliation(s)
- Yafei Wang
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, USA
| | - Erik Brodin
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
| | - Kenichiro Nishii
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA
| | - Hermann B Frieboes
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
- Center for Predictive Medicine, University of Louisville, Louisville, KY, USA
| | - Shannon M Mumenthaler
- Lawrence J. Ellison Institute for Transformative Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jessica L Sparks
- Department of Chemical, Paper and Biomedical Engineering, Miami University, Oxford, OH, USA.
| | - Paul Macklin
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, USA.
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167
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Lamas-Paz A, Morán L, Peng J, Salinas B, López-Alcántara N, Sydor S, Vilchez-Vargas R, Asensio I, Hao F, Zheng K, Martín-Adrados B, Moreno L, Cogolludo A, Gómez Del Moral M, Bechmann L, Martínez-Naves E, Vaquero J, Bañares R, Nevzorova YA, Cubero FJ. Intestinal Epithelial Cell-Derived Extracellular Vesicles Modulate Hepatic Injury via the Gut-Liver Axis During Acute Alcohol Injury. Front Pharmacol 2020; 11:603771. [PMID: 33408632 PMCID: PMC7779758 DOI: 10.3389/fphar.2020.603771] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 10/05/2020] [Indexed: 12/12/2022] Open
Abstract
Binge drinking, i.e., heavy episodic drinking in a short time, has recently become an alarming societal problem with negative health impact. However, the harmful effects of acute alcohol injury in the gut-liver axis remain elusive. Hence, we focused on the physiological and pathological changes and the underlying mechanisms of experimental binge drinking in the context of the gut-liver axis. Eight-week-old mice with a C57BL/6 background received a single dose (p.o.) of ethanol (EtOH) [6 g/kg b.w.] as a preclinical model of acute alcohol injury. Controls received a single dose of PBS. Mice were sacrificed 8 h later. In parallel, HepaRGs and Caco-2 cells, human cell lines of differentiated hepatocytes and intestinal epithelial cells intestinal epithelial cells (IECs), respectively, were challenged in the presence or absence of EtOH [0–100 mM]. Extracellular vesicles (EVs) isolated by ultracentrifugation from culture media of IECs were added to hepatocyte cell cultures. Increased intestinal permeability, loss of zonula occludens-1 (ZO-1) and MUCIN-2 expression, and alterations in microbiota—increased Lactobacillus and decreased Lachnospiraceae species—were found in the large intestine of mice exposed to EtOH. Increased TUNEL-positive cells, infiltration of CD11b-positive immune cells, pro-inflammatory cytokines (e.g., tlr4, tnf, il1β), and markers of lipid accumulation (Oil Red O, srbep1) were evident in livers of mice exposed to EtOH, particularly in females. In vitro experiments indicated that EVs released by IECs in response to ethanol exerted a deleterious effect on hepatocyte viability and lipid accumulation. Overall, our data identified a novel mechanism responsible for driving hepatic injury in the gut-liver axis, opening novel avenues for therapy.
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Affiliation(s)
- Arantza Lamas-Paz
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, Madrid, Spain.,12 de Octubre Health Research Institute (imas12), Madrid, Spain
| | - Laura Morán
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, Madrid, Spain.,Servicio de Aparato Digestivo del Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Jin Peng
- Department of Hepatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Beatriz Salinas
- Servicio de Aparato Digestivo del Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain.,Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain.,Bioengineering and Aerospace Engineering Department, Universidad Carlos III de Madrid, Madrid, Spain.,Centro de Investigación Biomédico en Red de Salud Mental (CIBERSAM), Madrid, Spain
| | - Nuria López-Alcántara
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, Madrid, Spain
| | - Svenja Sydor
- Department of Internal Medicine, University Hospital Knappschaftskrankenhaus, Ruhr-University Bochum, Bochum, Germany
| | - Ramiro Vilchez-Vargas
- Department of Gastroenterology, Hepatology, and Infectious Diseases, Otto von Guericke University Hospital Magdeburg, Magdeburg, Germany
| | - Iris Asensio
- Servicio de Aparato Digestivo del Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain.,Centre for Biomedical Research, Network on Liver and Digestive Diseases (CIBEREHD), Madrid, Spain
| | - Fengjie Hao
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, Madrid, Spain.,12 de Octubre Health Research Institute (imas12), Madrid, Spain.,Department of General Surgery, Hepatobiliary Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kang Zheng
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, Madrid, Spain.,12 de Octubre Health Research Institute (imas12), Madrid, Spain.,Department of Anesthesiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Beatriz Martín-Adrados
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, Madrid, Spain.,12 de Octubre Health Research Institute (imas12), Madrid, Spain
| | - Laura Moreno
- Department of Internal Medicine, University Hospital Knappschaftskrankenhaus, Ruhr-University Bochum, Bochum, Germany.,Department of Pharmacology and Toxicology, Complutense University School of Medicine and Centre for Biomedical Research, Network on Respiratory Diseases (CIBERES), Madrid, Spain
| | - Angel Cogolludo
- Department of Internal Medicine, University Hospital Knappschaftskrankenhaus, Ruhr-University Bochum, Bochum, Germany.,Department of Pharmacology and Toxicology, Complutense University School of Medicine and Centre for Biomedical Research, Network on Respiratory Diseases (CIBERES), Madrid, Spain
| | - Manuel Gómez Del Moral
- 12 de Octubre Health Research Institute (imas12), Madrid, Spain.,Department of Cell Biology, Complutense University School of Medicine, Madrid, Spain
| | - Lars Bechmann
- Department of Internal Medicine, University Hospital Knappschaftskrankenhaus, Ruhr-University Bochum, Bochum, Germany
| | - Eduardo Martínez-Naves
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, Madrid, Spain.,12 de Octubre Health Research Institute (imas12), Madrid, Spain
| | - Javier Vaquero
- Servicio de Aparato Digestivo del Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain.,Centre for Biomedical Research, Network on Liver and Digestive Diseases (CIBEREHD), Madrid, Spain
| | - Rafael Bañares
- Servicio de Aparato Digestivo del Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain.,Centre for Biomedical Research, Network on Liver and Digestive Diseases (CIBEREHD), Madrid, Spain
| | - Yulia A Nevzorova
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, Madrid, Spain.,12 de Octubre Health Research Institute (imas12), Madrid, Spain.,Department of Internal Medicine III, University Hospital RWTH Aachen, Aachen, Germany
| | - Francisco Javier Cubero
- Department of Immunology, Ophthalmology and ENT, Complutense University School of Medicine, Madrid, Spain.,12 de Octubre Health Research Institute (imas12), Madrid, Spain
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168
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Mann SN, Hadad N, Nelson Holte M, Rothman AR, Sathiaseelan R, Ali Mondal S, Agbaga MP, Unnikrishnan A, Subramaniam M, Hawse J, Huffman DM, Freeman WM, Stout MB. Health benefits attributed to 17α-estradiol, a lifespan-extending compound, are mediated through estrogen receptor α. eLife 2020; 9:59616. [PMID: 33289482 PMCID: PMC7744101 DOI: 10.7554/elife.59616] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023] Open
Abstract
Metabolic dysfunction underlies several chronic diseases, many of which are exacerbated by obesity. Dietary interventions can reverse metabolic declines and slow aging, although compliance issues remain paramount. 17α-estradiol treatment improves metabolic parameters and slows aging in male mice. The mechanisms by which 17α-estradiol elicits these benefits remain unresolved. Herein, we show that 17α-estradiol elicits similar genomic binding and transcriptional activation through estrogen receptor α (ERα) to that of 17β-estradiol. In addition, we show that the ablation of ERα completely attenuates the beneficial metabolic effects of 17α-E2 in male mice. Our findings suggest that 17α-E2 may act through the liver and hypothalamus to improve metabolic parameters in male mice. Lastly, we also determined that 17α-E2 improves metabolic parameters in male rats, thereby proving that the beneficial effects of 17α-E2 are not limited to mice. Collectively, these studies suggest ERα may be a drug target for mitigating chronic diseases in male mammals.
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Affiliation(s)
- Shivani N Mann
- Department of Nutritional Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, United States.,Oklahoma Center for Geroscience, University of Oklahoma Health Sciences Center, Oklahoma City, United States.,Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, United States
| | - Niran Hadad
- The Jackson Laboratory, Bar Harbor, United States
| | - Molly Nelson Holte
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, United States
| | - Alicia R Rothman
- Department of Nutritional Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, United States
| | - Roshini Sathiaseelan
- Department of Nutritional Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, United States
| | - Samim Ali Mondal
- Department of Nutritional Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, United States
| | - Martin-Paul Agbaga
- Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, United States.,Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, United States.,Dean McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, United States
| | - Archana Unnikrishnan
- Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, United States.,Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, United States
| | | | - John Hawse
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, United States
| | - Derek M Huffman
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, New York, United States
| | - Willard M Freeman
- Oklahoma Center for Geroscience, University of Oklahoma Health Sciences Center, Oklahoma City, United States.,Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, United States.,Oklahoma City Veterans Affairs Medical Center, Oklahoma City, United States
| | - Michael B Stout
- Department of Nutritional Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, United States.,Oklahoma Center for Geroscience, University of Oklahoma Health Sciences Center, Oklahoma City, United States.,Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, United States
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Jakhmola-Mani R, Islam A, Katare DP. Liver-Brain Axis in Sporadic Alzheimer's Disease: Role of Ten Signature Genes in a Mouse model. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2020; 20:871-885. [PMID: 33297922 DOI: 10.2174/1871527319666201209111006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 08/23/2020] [Accepted: 09/08/2020] [Indexed: 12/12/2022]
Abstract
AIM Poor nutritional effect of junk food induces injurious adversities to the liver and brain but still most of the developing nations survives on these diets to compensate for fast-paced lifestyle. Aim of the study is to infer the proteinconnections behind liver-brain axis and identify the role of these proteins in causing neurodegenerative disorders. BACKGROUND Chronic consumption of fructose and fat rich food works as a toxin in body and have the ability to cause negative metabolic shift. Recently a study was published in Annals of Internal Medicine (2019) citing the loss of vision and hearing in a 14-year-old boy whose diet was strictly restricted to fries and junk-food for almost a decade. This puts the entire body on insulin resistance and related co-morbidities and causes simultaneous damaging effects in liver as well brain. This work provides insights into liver-brain axis and explains how liver is involved in brain related disorders. OBJECTIVE In this study transcriptomic data relating to chronic eating of junk-food was analyzed and simultaneous damage that happens in liver and brain was assessed at molecular level. METHOD Transcriptomic study was taken from GEO database and analysed to find out the genes dysregulated in both liver and brain during this metabolic stress. Cytoscapev3.7 was used to decipher the signalling between liver and brain. This connection between both was called as Liver-Brain axis. RESULT The results obtained from our study indicates the role of TUBB5-HYOU1-SDF2L1-DECR1-CDH1-EGFR-SKP2- SOD1-IRAK1-FOXO1 gene signature towards the decline of concurrent liver and brain health. Dysregulated levels of these genes are linked to molecular processes like cellular senescence, hypoxia, glutathione synthesis, amino acid modification, increased nitrogen content, synthesis of BCAAs, cholesterol biosynthesis, steroid hormone signalling and VEGF pathway. CONCLUSION We strongly advocate that prolonged consumption of junk food is a major culprit in brain related disorders like Alzheimer's disease and propose that receptors for brain diseases lie outside the brain and aiming them for drug discovery and design may be beneficial in future clinical studies. This study also discusses the connection between NAFLD (nonalcoholic fatty liver disease) and sAD (sporadic Alzheimer's disease) owing to liver-brain axis.
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Affiliation(s)
- Ruchi Jakhmola-Mani
- Proteomics and Translational Research Lab, Centre for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida. India
| | - Anam Islam
- Proteomics and Translational Research Lab, Centre for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida. India
| | - Deepshikha Pande Katare
- Proteomics and Translational Research Lab, Centre for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida. India
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170
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Minimal Hepatic Encephalopathy and Mild Cognitive Impairment Worsen Quality of Life in Elderly Patients With Cirrhosis. Clin Gastroenterol Hepatol 2020; 18:3008-3016.e2. [PMID: 32205222 PMCID: PMC7502426 DOI: 10.1016/j.cgh.2020.03.033] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 03/03/2020] [Accepted: 03/13/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Patients with cirrhosis are growing older. The overlap between minimal hepatic encephalopathy (MHE) and predementia mild cognitive impairment (MCI) could affect quality of life (QOL). We investigated the performance of elderly patients with cirrhosis on tests for MHE and MCI and their effects on QOL. METHODS We recruited outpatients with cirrhosis (n = 109) and without cirrhosis (controls, n = 100), 65 years or older, at 4 centers (derivation cohort). All study participants were assessed for psychometric hepatic encephalopathy score (PHES), EncephalApp score, and QOL. MCI was tested in patients with cirrhosis using the repeatable battery for assessment of neuropsychological status and assigned to the following groups: unimpaired, MCI only, MHE only, and MCI+MHE. We created adjusted norms to detect MHE using PHES and EncephalApp scores from the controls. Findings were validated using data from a separate cohort of 77 patients with cirrhosis (mean age, 69.49 ± 4.36 y; 72% men) at the same study sites. RESULTS Controls were older but were more educated, performed better cognitively, and had better QOL. Among patients with cirrhosis, age, education, model for end-stage liver disease score, EncephalApp score, and QOL were similar, but PHES and repeatable battery for assessment of neuropsychological status differed among sites. In the derivation cohort, the presence of MHE, with or without MCI, was associated with poor QOL, which was lowest in the MCI+MHE group. When we adjusted for age, sex, and education, 49% of patients with cirrhosis had MHE based on the EncephalApp and 8% had MHE based on the PHES. A similar pattern (49% MHE based on EncephalApp and 6% MHE based on PHES) was found in a validation cohort. CONCLUSIONS In a multicenter study of patients with cirrhosis (>65 y) and controls, the presence of MHE, regardless of MCI, was associated with poor cognition and QOL. We created adjusted norms that defined the high sensitivity of EncephalApp for the detection of MHE in older individuals and validated it in a separate cohort.
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171
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Rivero-Segura NA, Bello-Chavolla OY, Barrera-Vázquez OS, Gutierrez-Robledo LM, Gomez-Verjan JC. Promising biomarkers of human aging: In search of a multi-omics panel to understand the aging process from a multidimensional perspective. Ageing Res Rev 2020; 64:101164. [PMID: 32977058 DOI: 10.1016/j.arr.2020.101164] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/18/2020] [Accepted: 08/26/2020] [Indexed: 12/14/2022]
Abstract
The aging process has been linked to the occurrence of chronic diseases and functional impairments, including cancer, sarcopenia, frailty, metabolic, cardiovascular, and neurodegenerative diseases. Nonetheless, aging is highly variable and heterogeneous and represents a challenge for its characterization. In this sense, intrinsic capacity (IC) stands as a novel perspective by the World Health Organization, which integrates the individual wellbeing, environment, and risk factors to understand aging. However, there is a lack of quantitative and qualitative attributes to define it objectively. Therefore, in this review we attempt to summarize the most relevant and promising biomarkers described in clinical studies at date over different molecular levels, including epigenomics, transcriptomics, proteomics, metabolomics, and the microbiome. To aid gerontologists, geriatricians, and biomedical researchers to understand the aging process through the IC. Aging biomarkers reflect the physiological state of individuals and the underlying mechanisms related to homeostatic changes throughout an individual lifespan; they demonstrated that aging could be measured independently of time (that may explain its heterogeneity) and to be helpful to predict age-related syndromes and mortality. In summary, we highlight the areas of opportunity and gaps of knowledge that must be addressed to fully integrate biomedical findings into clinically useful tools and interventions.
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Affiliation(s)
| | - O Y Bello-Chavolla
- Dirección de Investigación, Instituto Nacional de Geriatría, Mexico; Department of Physiology, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - O S Barrera-Vázquez
- Departamento de Famacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - J C Gomez-Verjan
- Dirección de Investigación, Instituto Nacional de Geriatría, Mexico.
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172
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Association Between Nonvitamin K Antagonist Oral Anticoagulants or Warfarin and Liver Injury: A Cohort Study. Am J Gastroenterol 2020; 115:1513-1524. [PMID: 32467502 DOI: 10.14309/ajg.0000000000000678] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION The risk of liver injury in patients with atrial fibrillation (AF) using nonvitamin K antagonist oral anticoagulants (NOACs) has not been previously examined using liver function tests as the primary outcome in the real-world setting. This study assessed the association between NOACs (dabigatran, rivaroxaban, and apixaban) and warfarin and the risk of liver injury, as defined by laboratory tests. METHODS Patients newly diagnosed with AF and prescribed NOACs or warfarin between 2010 and 2016, identified using the Hong Kong Clinical Database and Reporting System, were matched on age, sex, health status scores, comorbidities, and medications by propensity score on a 1:1 ratio. Risk of liver injury, defined as laboratory test values >3 times the upper limit of normal of alanine aminotransferase or aspartate aminotransferase and >2 times the upper limit of normal of total bilirubin, was compared between NOAC and warfarin users using Cox proportional hazards regression. RESULTS After propensity score matching, 13,698 patients were included, of which 141 (2.1%) NOAC users and 232 (3.4%) warfarin users developed liver injury. The hazard ratio (HR) for NOAC vs warfarin users was 0.71 (95% confidence interval: 0.58-0.89). When comparing individual NOACs, only dabigatran (hazard ratio: 0.63; 95% confidence interval: 0.48-0.82) was associated with a lower risk of liver injury. DISCUSSION Among patients with AF, NOACs as a group, and dabigatran alone were associated with a significantly lower risk of laboratory-based liver injury when compared with warfarin. However, liver injury occurs more frequently in real-world practice than in NOAC randomized controlled trials.
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173
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Chen TP, Lai M, Lin WY, Huang KC, Yang KC. Metabolic profiles and fibrosis of nonalcoholic fatty liver disease in the elderly: A community-based study. J Gastroenterol Hepatol 2020; 35:1636-1643. [PMID: 32333452 DOI: 10.1111/jgh.15073] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/11/2020] [Accepted: 04/16/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS There are sparse data on the epidemiology of fatty liver in the elderly Asian population. We evaluated for predictors of fatty liver and high risk of advanced fibrosis in a community-based elderly population. METHODS A total of 1091 participants (mean age was 74.6 ± 6.3 years) were enrolled from 2017 to 2018. Subjects with age younger than 65 years, alcoholism, and history of hepatitis B and hepatitis C were excluded. Fatty liver was diagnosed with abdominal ultrasound by using ultrasonographic fatty liver indicator, a semi-quantitative measurement grading the severity (normal, mild, and moderate-to-severe). Fibrosis-4 score was used for the prediction of the high risk of advanced fibrosis. Using a multivariable logistic regression model, we identified predictors of fatty liver and high risk of advanced fibrosis. RESULTS In this ambulatory elderly Asian population, the prevalence of fatty liver is 41.9% and of high risk of advanced fibrosis is 12.3%. The prevalence of fatty liver decreases (44.5% to 31.8%), and the high risk of advanced fibrosis increases (3.9% to 27.0%) with aging significantly (both P < 0.05). Metabolic syndrome is a risk factor for fatty liver (odds ratio [OR], 3.19; 95% CI, 2.41-4.22) but not for high risk of advanced fibrosis (OR, 0.67; 95% CI, 0.41-1.08). Hypertriglyceridemia decreases the risk for high risk of advanced fibrosis (OR, 0.53; 95% CI, 0.33-0.87). CONCLUSION Fatty liver is prevalent in the ambulatory elderly Asian population, affecting over 40% of this population. Age is a risk factor for high risk of advanced fibrosis, with the disease likely progressing from a steatotic to a fibrotic picture with age.
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Affiliation(s)
- Tsung-Po Chen
- Department of Community and Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Michelle Lai
- Division of Gastroenterology and Hepatology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Wen-Yuan Lin
- Department of Community and Family Medicine, China Medical University Hospital, Taichung, Taiwan.,Department of Social Medicine and Family Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Kuo-Chin Huang
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Department of Family Medicine, National Taiwan University Hospital Bei-Hu Branch, Taipei, Taiwan
| | - Kuen-Cheh Yang
- Department of Family Medicine, National Taiwan University Hospital Bei-Hu Branch, Taipei, Taiwan.,Community and Geriatric Medicine Research Center, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan
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174
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Wasityastuti W, Habib NA, Sari DCR, Arfian N. Effects of low and moderate treadmill exercise on liver of d-galactose-exposed aging rat model. Physiol Rep 2020; 7:e14279. [PMID: 31724278 PMCID: PMC6854106 DOI: 10.14814/phy2.14279] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 10/08/2019] [Accepted: 10/10/2019] [Indexed: 12/15/2022] Open
Abstract
Aging increases liver susceptibility to diseases and it causes inflammation in liver tissue which can lead to fibrosis. Studies suggest that aging is caused by the accumulation of free radicals. Lack of physical activity can lower hormone levels and increase free radicals that can accelerate the aging process. Hence, physical activity is very important to maintain functions of organs. This research was aimed to study the effects of low and moderate treadmill exercise on d‐Galactose‐exposed aging rat model by evaluating the degree of hepatic fibrosis, number of M1 and M2, and M1/M2 ratio. Twenty‐four 3‐month‐old male Wistar aging model rats were randomly divided into four groups, that is, three treatment groups with daily 300 mg kgBW−1d‐Galactose injection administrated intraperitoneally for 4 weeks and 1 control group with normal saline injection. Two of the d‐Galactose treated groups were given low and moderate treadmill exercise for 4 weeks. It was concluded that low intensity treadmill exercise significantly lowered the degree of d‐Galactose‐exposed hepatic fibrosis, and moderate treadmill exercise was able to restore the injured liver tissue back to the non‐aging state. Administration of d‐Galactose causes inflammation marked by the elevated number of M1 and M2 macrophages. Moderate treadmill exercise drove M1/M2 ratio back to the control condition.
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Affiliation(s)
- Widya Wasityastuti
- Department of Physiology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Nurfatma A Habib
- Master in Biomedical Sciences, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Dwi C R Sari
- Department of Anatomy, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Nur Arfian
- Department of Anatomy, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
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175
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Fenugreek ( Trigonella foenum-graecum L.) Seeds Dietary Supplementation Regulates Liver Antioxidant Defense Systems in Aging Mice. Nutrients 2020; 12:nu12092552. [PMID: 32846876 PMCID: PMC7551560 DOI: 10.3390/nu12092552] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 12/22/2022] Open
Abstract
Fenugreek seeds are widely used in Asia and other places of the world for their nutritive and medicinal properties. In Asia, fenugreek seeds are also recommended for geriatric populations. Here, we evaluated for the first time the effect of fenugreek seed feed supplementation on the liver antioxidant defense systems in aging mice. The study was conducted on 12-months aged mice which were given fenugreek seed dietary supplement. We evaluated the activities of various antioxidant defense enzymes such as superoxide dismutase (SOD), glutathione reductase (GR), and glutathione peroxidase (GPx), and also estimated the phenolics and free radical scavenging properties in mice liver upon fenugreek supplementation. The estimation of SOD, GPx, and GR activities in aged mice liver revealed a significant (p < 0.01) difference among all the liver enzymes. Overall, this study reveals that fenugreek seed dietary supplementation has a positive effect on the activities of the hepatic antioxidant defense enzymes in the aged mice.
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176
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Aslam S, Buggs J, Melo S, Ermekbaeva A, Rogers E, Shaw R, Kumar A, Kemmer N. The Association Between Alcoholic Liver Disease and Alcohol Tax. Am Surg 2020; 87:92-96. [DOI: 10.1177/0003134820945223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background The incidence of alcoholic liver disease (ALD) has increased, causing it to become a primary indication for liver transplantation in the United States. We hypothesized an association between alcohol taxation and prevalence of ALD. Methods We conducted a retrospective study of united network for organ sharing (UNOS) waitlist additions for liver transplantation between January 2007 and December 2016. We also analyzed the average excise tax (2007-2016) for beer, wine, and spirits in listing states of liver transplant waitlist additions (LTWA). Results There were 104 805 adult UNOS LTWA with assigned diagnoses, an annual increase from 22% to 28%. There were 24 316 LTWA with ALD diagnosis. The mean value for beer tax was significantly lower for ALD patients than for non-ALD patients across all age groups ( P < .001). The analysis demonstrated significantly more ALD in waitlisted patients 35-54 years of age (30%), compared with 18-34 years (10%) and ≥55 years (20%), P < .001. The data confirmed significantly more ALD Medicaid patients in the 35-54 year age group (28%) compared with other age groups, P < .001. Discussion Our research demonstrated an association between lower beer tax and higher ALD prevalence across all age groups. We found a larger percentage of middle-aged (35-54 years) Medicaid patients listed with ALD. These findings raise the need for further investigation of a potential public health concern for an association between ALD and beer tax, especially for middle-aged patients of lower socioeconomic status.
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Affiliation(s)
- Sadaf Aslam
- Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Jacentha Buggs
- Department of Transplant Surgery, Tampa General Medical Group, Tampa, FL, USA
| | - Samantha Melo
- Indiana University School of Medicine, Indianapolis, IN, USA
| | | | - Ebonie Rogers
- Office of Clinical Research, Tampa General Hospital, Tampa, FL, USA
| | - Robert Shaw
- Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Ambuj Kumar
- Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Nyingi Kemmer
- Department of Transplant Hepatology, Tampa General Medical Group, Tampa, FL, USA
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177
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Value of Liver Regeneration in Predicting Short-Term Prognosis for Patients with Hepatitis B-Related Acute-on-Chronic Liver Failure. BIOMED RESEARCH INTERNATIONAL 2020; 2020:5062873. [PMID: 32832550 PMCID: PMC7428825 DOI: 10.1155/2020/5062873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/21/2020] [Accepted: 07/14/2020] [Indexed: 12/30/2022]
Abstract
Background and Aims The value of hepatocyte regeneration in predicting the outcomes of hepatitis B-related acute-on-chronic liver failure (HBV-ACLF) is not fully assessed. The present study was aimed at establishing a novel scoring system to predict patients' outcomes within 3 months by applying serological indicators of hepatic regeneration and liver injury. Methods Patients with chronic hepatitis B who had a rapid deterioration were investigated. Patients were observed for 90 days, and the endpoint of follow-up was death or liver transplantation. Serum parameters were estimated on the diagnosis of acute-on-chronic liver failure (ACLF). Cox proportional hazard regression was used to identify independent prognostic factors and create a novel prognostic scoring system, and a receiver operating characteristic (ROC) curve was used to analyze the performance of the model. Results A total of 308 patients with HBV-ACLF were incorporated and divided into the training cohort (n = 206) and testing cohort (n = 102) randomly. Creatine (Cre), age, total bilirubin (TBil), alpha-fetoprotein (AFP), and international normalized ratio (INR) were found to be independent prognostic factors. According to the results of Cox regression analysis, a new prognostic model (we named it the TACIA score) was calculated. The areas under ROC (AUROC) for the new model were 0.861 and 0.763 in the training and testing cohorts, respectively, and patients with lower TACIA scores (<4.34) would survive longer (P < 0.001). Conclusions A pertinent prognostic scoring system for patients with HBV-ACLF was established in our study, and the novel model could predict patients' short-term survival effectively.
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Amelioration of age-related alterations in rat liver: Effects of curcumin C3 complex, Astragalus membranaceus and blueberry. Exp Gerontol 2020; 137:110982. [DOI: 10.1016/j.exger.2020.110982] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/04/2020] [Accepted: 05/19/2020] [Indexed: 12/21/2022]
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179
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Pinto C, Ninfole E, Gaggiano L, Benedetti A, Marzioni M, Maroni L. Aging and the Biological Response to Liver Injury. Semin Liver Dis 2020; 40:225-232. [PMID: 31887774 DOI: 10.1055/s-0039-3402033] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Interest in understanding the aging process has recently risen in the scientific community. Aging, commonly defined as the functional decline in the function of organs and tissues, is indeed the major risk factor for the development of many chronic diseases, such as cardiovascular diseases, pathologies of nervous system, or cancer. To date, the influence of aging in the pathophysiology of liver and biliary diseases is not fully understood. Although liver cells have a high regenerative capacity, hepatocytes and cholangiocytes undergo extensive molecular changes in response to aging. Following time-dependent damage induced by aging, liver cells initially activate compensatory mechanisms that, if hyperstimulated, may lead to the decline of regenerative capacity and the development of pathologies. A deeper understanding of molecular aging has undoubtedly the potential to improve the clinical management of patients, possibly unveiling new pathways for selective drug treatment.
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Affiliation(s)
- Claudio Pinto
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Elisabetta Ninfole
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Laura Gaggiano
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Antonio Benedetti
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Marco Marzioni
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Luca Maroni
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
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180
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Singh BK, Tripathi M, Sandireddy R, Tikno K, Zhou J, Yen PM. Decreased autophagy and fuel switching occur in a senescent hepatic cell model system. Aging (Albany NY) 2020; 12:13958-13978. [PMID: 32712601 PMCID: PMC7425478 DOI: 10.18632/aging.103740] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/18/2020] [Indexed: 02/05/2023]
Abstract
Although aging in the liver contributes to the development of chronic liver diseases such as NAFLD and insulin resistance, little is known about the molecular and metabolic details of aging in hepatic cells. To examine these issues, we used sequential oxidative stress with hydrogen peroxide to induce premature senescence in AML12 hepatic cells. The senescent cells exhibited molecular and metabolic signatures, increased SA-βGal and γH2A.X staining, and elevated senescence and pro-inflammatory gene expression that resembled livers from aged mice. Metabolic phenotyping showed fuel switching towards glycolysis and mitochondrial glutamine oxidation as well as impaired energy production. The senescent AML12 cells also had increased mTOR signaling and decreased autophagy which likely contributed to the fuel switching from β-oxidation that occurred in normal AML12 cells. Additionally, senescence-associated secretory phenotype (SASP) proteins from conditioned media of senescent cells sensitized normal AML12 cells to palmitate-induced toxicity, a known pathological effect of hepatic aging. In summary, we have generated senescent AML12 cells which displayed the molecular hallmarks of aging and also exhibited the aberrant metabolic phenotype, mitochondrial function, and cell signaling that occur in the aged liver.
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Affiliation(s)
- Brijesh Kumar Singh
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Madhulika Tripathi
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Reddemma Sandireddy
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Keziah Tikno
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Jin Zhou
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Paul Michael Yen
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore 169857, Singapore.,Duke University School of Medicine, Durham, NC 27710, USA
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181
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Womack JA, Justice AC. The OATH Syndemic: opioids and other substances, aging, alcohol, tobacco, and HIV. Curr Opin HIV AIDS 2020; 15:218-225. [PMID: 32487817 PMCID: PMC7422477 DOI: 10.1097/coh.0000000000000635] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Persons living with HIV (PLWH) are aging, continue to use alcohol and other substances, and experience age-associated adverse effects. We explore a new syndemic: OATH (opioids and other substances, aging, alcohol, tobacco, and HIV). RECENT FINDINGS Frailty and falls are important problems that affect the health status of PLWH who continue to use alcohol and other substances. HIV, alcohol and other substance use, and aging each contributes to inflammaging. Multimorbidity and polypharmacy are also important pathways as alcohol and other substances interact with prescribed medications resulting in adverse-drug interactions leading to potentially serious consequences. Social conditions including racism, poverty, sex bias, stress, and stigma contribute to the existence and persistence of this syndemic. SUMMARY Substance use, HIV, and aging are linked in a new syndemic (OATH) that drives age-related outcomes such as frailty and falls. We need to expand our understanding of the 'healthcare team' so that we include social and political advocates who can support necessary structural change. Treatment of substance use should be better incorporated into the management of HIV, including a focus on potential medication/substance interactions. Finally, we need to explore treatment of frailty rather than individual manifestations of frailty (e.g., atherosclerosis, neurodegeneration).
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Affiliation(s)
- Julie A. Womack
- VA Connecticut Healthcare System, West Haven, CT
- Yale School of Nursing, Orange, CT
| | - Amy C. Justice
- VA Connecticut Healthcare System, West Haven, CT
- Yale School of Medicine, New Haven, CT
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182
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Ortega‐Ribera M, Hunt NJ, Gracia‐Sancho J, Cogger VC. The Hepatic Sinusoid in Aging and Disease: Update and Advances From the 20th Liver Sinusoid Meeting. Hepatol Commun 2020; 4:1087-1098. [PMID: 32626839 PMCID: PMC7327202 DOI: 10.1002/hep4.1517] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 12/13/2022] Open
Abstract
This is a meeting report of the 2019 Liver Sinusoid Meeting, 20th International Symposium on Cells of the Hepatic Sinusoid, held in Sydney, Australia, in September 2019. The meeting, which was organized by the International Society for Hepatic Sinusoidal Research, provided an update on the recent advances in the field of hepatic sinusoid cells in relation to cell biology, aging, and liver disease, with particular focus on the molecular and cellular targets involved in hepatic fibrosis, nonalcoholic hepatic steatohepatitis, alcoholic liver disease, hepatocellular carcinoma, and cirrhosis. In addition, the meeting highlighted the recent advances in regenerative medicine, targeted nanotechnologies, therapeutics, and novel methodologies.
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Affiliation(s)
- Martí Ortega‐Ribera
- Liver Vascular Biology Research GroupBarcelona Hepatic Hemodynamic UnitInstitut d’Investigacions Biomèdiques August Pi i SunyerCentro de Investigación Biomédica en Red de Enfermedades Hepáticas y DigestivasBarcelonaSpain
| | - Nicholas J. Hunt
- Centre for Education and Research on AgeingConcord Repatriation General HospitalANZAC Research InstituteAustralian Ageing and Alzheimers InstituteConcordSydneyNSWAustralia
- Faculty of Medicine and HealthUniversity of SydneySydneyNSWAustralia
| | - Jordi Gracia‐Sancho
- Liver Vascular Biology Research GroupBarcelona Hepatic Hemodynamic UnitInstitut d’Investigacions Biomèdiques August Pi i SunyerCentro de Investigación Biomédica en Red de Enfermedades Hepáticas y DigestivasBarcelonaSpain
- HepatologyDepartment of Biomedical ResearchUniversity of BernInselspitalBernSwitzerland
| | - Victoria C. Cogger
- Centre for Education and Research on AgeingConcord Repatriation General HospitalANZAC Research InstituteAustralian Ageing and Alzheimers InstituteConcordSydneyNSWAustralia
- Faculty of Medicine and HealthUniversity of SydneySydneyNSWAustralia
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183
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Fallatah HI, Al-Dabbagh A, Hiejazi MT, Hanbazazah SAA, Hussein AO, Al-Sahafi MA, Akbar HO. Prevalence and Clinical Characteristics of NAFLD in Chronic Liver Disease Patients from King Abdulaziz University Hospital, Jeddah. SAUDI JOURNAL OF MEDICINE & MEDICAL SCIENCES 2020; 8:118-124. [PMID: 32587493 PMCID: PMC7305671 DOI: 10.4103/sjmms.sjmms_272_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/20/2019] [Accepted: 03/23/2020] [Indexed: 11/18/2022]
Abstract
Background: Nonalcoholic fatty liver disease (NAFLD) is a common cause of chronic liver disease (CLD). NAFLD is also related to obesity and metabolic syndromes, which are common in Saudi Arabia. However, it is yet unclear what proportion of CLD cases is because of NAFLD in Saudi Arabia. Objective: To investigate the prevalence and clinical characteristics of NAFLD among patients with CLD in Saudi Arabia. Materials and Methods: This retrospective study included all patients with any CLD who had successfully undergone transient elastography (FibroScan) examination at King Abdulaziz University Hospital, Jeddah, Saudi Arabia, between April 2015 and April 2018. These CLD patients were then grouped as NAFLD and non-NAFLD patients. Serum hemoglobin, alanine aminotransferase, gamma-glutamyl transferase, albumin and bilirubin levels; platelet count and international normalized ratio within 1 month after the FibroScan examination were assessed. For NAFLD patients, glycated hemoglobin levels and abdominal ultrasound examination results were also assessed. Statistical analysis was carried out using Student’s t-test and linear regression. Results: The prevalence of NAFLD among CLD patients was 22.5% (111 of 494 CLD patients), and it was the third most common CLD after chronic hepatitis B and C. Compared with non-NAFLD patients, NAFLD patients had significantly higher mean age (53.65 ± 12.7 vs. 48.07 ± 14.6 years; P < 0.001), mean serum alanine aminotransferase level (61.84 vs. 50.23 IU/L; P < 0.001) and mean controlled attenuation parameter (297.83 vs. 238.41; P < 0.001). NAFLD patients also had a higher rate of ultrasound-detected features of cirrhosis (16.2% vs. 3.7%, P < 0.001), but there was no significant difference in fibrosis severity. In addition, their mean glycated hemoglobin level (6.85) was elevated (range: 5–13). Age and platelet count were significantly correlated with presence of cirrhosis. Conclusion: NAFLD is the third most common CLD in Western Saudi Arabia, and it is associated with older age and metabolic syndromes, with one-third of the patients having advanced fibrosis or cirrhosis.
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Affiliation(s)
- Hind Ibrahim Fallatah
- Division of Gastroenterology and Hepatology, Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ammar Al-Dabbagh
- Department of Medicine, Section of Gastroenterology and Hepatology, Fakeeh Hospital, Jeddah, Saudi Arabia
| | - Mohammead T Hiejazi
- Division of Gastroenterology and Hepatology, Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sulaiman A A Hanbazazah
- Division of Gastroenterology and Hepatology, Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ali O Hussein
- Division of Gastroenterology and Hepatology, Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Majed A Al-Sahafi
- Division of Gastroenterology and Hepatology, Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hisham O Akbar
- Division of Gastroenterology and Hepatology, Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
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184
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Saghir SA, Ansari RA, Dorato MA. Rethinking toxicity testing: Influence of aging on the outcome of long-term toxicity testing and possible remediation. Food Chem Toxicol 2020; 141:111327. [PMID: 32380075 DOI: 10.1016/j.fct.2020.111327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/27/2020] [Accepted: 04/06/2020] [Indexed: 10/24/2022]
Abstract
Traditionally, toxicity testing is conducted at fixed dose rates (i.e., mg/kg/day) without considering life-changing events, e.g., stress, sickness, aging- and/or pregnancy-related changes in physical, physiological and biochemical parameters. In humans, life-changing events may cause systemic dose non-proportionality requiring modulation of drug dosage; similar changes occur in animals altering systemic dose during chronic/carcinogenic testing leading to "late-occurring" effects in some studies. For example, propylene monomethyl ether, an industrial chemical, initially induced sedation in rats and mice with recovery upon induction of hepatic CYPs after ~1 week. Sedation reappeared in rats but not in mice after ~12 months of exposure due to decreased CYP activity in rats, elderly mice were able to maintain slightly higher CYP activity avoiding recurrence of sedation. The systemic dose of two pharmaceuticals (doxazosin and brimonidine tartrate) increased up to 6-fold in ≥12-month old rats with no toxicity. In a rat reproductive toxicity study, systemic dose of 2,4-D, an herbicide, rapidly increased due to increased consumption of 2,4-D-fortified diet during pregnancy, lactation and neonatal growth, requiring adjustment to maintain the targeted systemic dose. Ideally, toxicological studies should be based on systemic dose with the option of modulating external dose rates to maintain the targeted systemic dose. Systemic dose can easily be monitored in selected core study animals at desired intervals considering recent developments in sampling and analysis at a fraction of the overall cost of a study.
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Affiliation(s)
- Shakil Ahmed Saghir
- Scotts Miracle-Gro, 14111 Scottslawn Road, Marysville, OH, 43041, USA; Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan; ToxInternational, Inc., 5057 Stonecroft Ct., Hilliard, OH 43026, USA.
| | - Rais Ahmad Ansari
- Department of Pharmaceutical Sciences, College of Pharmacy, Health Professions Division, Nova Southeastern University, 3200 S University Drive, Fort Lauderdale, FL, 33328, USA.
| | - Michael A Dorato
- Inotiv, 13 Firstfield Road, Suite 110, Gaithersburg, MD, 20878, USA.
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185
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Yong SH, Leem AY, Kim YS, Park MS, Chang J, Kim SU, Jung JY. Hepatic Fibrosis Assessed Using Fibrosis-4 Index Is Predictive of All-Cause Mortality in Patients with Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2020; 15:831-839. [PMID: 32368029 PMCID: PMC7173842 DOI: 10.2147/copd.s242863] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 03/30/2020] [Indexed: 12/16/2022] Open
Abstract
Background Various comorbidities influence the prognosis of patients with chronic obstructive pulmonary disease (COPD). We investigated if liver fibrosis assessed using fibrosis-4 index (FIB-4) is associated with all-cause mortality in patients with COPD. Methods We included 756 patients diagnosed with COPD between 2006 and 2010. Medical records were retrospectively reviewed until 2018. FIB-4 was calculated using the following equation: [age (years) × aspartate aminotransferase (IU/L)/(platelet count (109/L) × √alanine aminotransferase (IU/L))]. Results From a total of 756 patients, 582 (76.9%) patients were categorized into survivor and 174 (23.1%) into non-survivor groups. The non-survivor group was significantly older with a higher proportion of male, smoker and lower FEV1/FVC ratio than the survivor group (all P<0.05). Various comorbidities were more frequently observed in the non-survivor group (P<0.05). In addition, the non-survivor group had significantly higher FIB-4 than the survivor group (1.8 vs 1.4, P<0.001). In multivariate analysis, older age (hazard ratio [HR]=1.05), underlying malignancy (HR=2.94), coronary artery occlusive disease (HR=1.58), higher FIB-4 (HR=1.15), and higher GOLD stage (HR=1.26) were significantly associated with the increased risk of all-cause mortality (P<0.05), whereas body mass index (HR=0.95) was independently protective for all-cause mortality (all P<0.05). The high FIB-4 (>1.57) group showed a significantly lower cumulative survival rate than the low FIB-4 (≤1.05) group (P=0.031, Log-rank test). In multivariate regression analysis, higher FIB-4 independently predicted the risk of acute exacerbation (odds ratio=1.08, P=0.034). Conclusion Higher fibrotic burden assessed using FIB-4 was independently predictive of the increased risk of all-cause mortality and acute exacerbation in patients with COPD.
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Affiliation(s)
- Seung Hyun Yong
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ah Young Leem
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Sam Kim
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Moo Suk Park
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joon Chang
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Up Kim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea
| | - Ji Ye Jung
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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186
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Sun X, Harris EN. New aspects of hepatic endothelial cells in physiology and nonalcoholic fatty liver disease. Am J Physiol Cell Physiol 2020; 318:C1200-C1213. [PMID: 32374676 DOI: 10.1152/ajpcell.00062.2020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The liver is the central metabolic hub for carbohydrate, lipid, and protein metabolism. It is composed of four major types of cells, including hepatocytes, endothelial cells (ECs), Kupffer cells, and stellate cells. Hepatic ECs are highly heterogeneous in both mice and humans, representing the second largest population of cells in liver. The majority of them line hepatic sinusoids known as liver sinusoidal ECs (LSECs). The structure and biology of LSECs and their roles in physiology and liver disease were reviewed recently. Here, we do not give a comprehensive review of LSEC structure, function, or pathophysiology. Instead, we focus on the recent progress in LSEC research and other hepatic ECs in physiology and nonalcoholic fatty liver disease and other hepatic fibrosis-related conditions. We discuss several current areas of interest, including capillarization, scavenger function, autophagy, cellular senescence, paracrine effects, and mechanotransduction. In addition, we summarize the strengths and weaknesses of evidence for the potential role of endothelial-to-mesenchymal transition in liver fibrosis.
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Affiliation(s)
- Xinghui Sun
- Department of Biochemistry, University of Nebraska-Lincoln, Beadle Center, Lincoln, Nebraska.,Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, Nebraska.,Nebraska Center for the Prevention of Obesity Diseases through Dietary Molecules, University of Nebraska-Lincoln, Lincoln, Nebraska
| | - Edward N Harris
- Department of Biochemistry, University of Nebraska-Lincoln, Beadle Center, Lincoln, Nebraska.,Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln, Nebraska.,Fred & Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
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187
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Imran T, Wong A, Schneeweiss S, Desai RJ. Statin Lipophilicity and the Risk of Incident Heart Failure. Cardiology 2020; 145:375-383. [PMID: 32289796 DOI: 10.1159/000506003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 01/19/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND To compare the risk of incident heart failure (HF) between initiators of hydrophilic and lipophilic statins. METHODS Using claims data for commercial health insurance program enrollees in the USA (2005-2014), we identified new initiators of hydrophilic or lipophilic statins. Follow-up for the primary outcome of incident HF began after a lag period of 1 year after statin initiation. The outcome was defined as 1 inpatient or 2 outpatient diagnosis codes for HF and the use of loop diuretics. Propensity scores (PS) were used to account for confounding. Hazard ratios (HR) for incident HF were computed separately for low and high-intensity statin users, and then pooled to provide dose-adjusted effect estimates. RESULTS A total of 7,820,204 patients met all our inclusion criteria for statin initiation (hydrophilic and lipophilic statins). Mean age was 58 years, 40% had hypertension, and 23% had diabetes mellitus. After PS matching, there were 691,584 patients in the low-intensity statin group and 807,370 patients in the high-intensity statin group. After a median follow-up of 725 days (IQR 500-1,153),there were 8,389 cases of incident HF (incidence rate 4.5/1,000 person years, 95% confidence interval [CI] 4.4-4.6). The unadjusted HR for the risk of HF was 0.77 (95% CI 0.76-0.79) and the pooled adjusted HR for incident HF after PS matching was 0.94 (95% CI 0.90-0.98) for hydrophilic versus lipophilic statins. The HR for incident HF was 1.06 (95% CI 1.00-1.12) for hydrophilic versus lipophilic statins for the low-intensity statin group and 0.82 (95% CI 0.78-0.87) for the high-intensity statin group. In subgroup analyses, a similar trend persisted for those younger and older than 65 years and when comparing rosuvastatin with atorvastatin. CONCLUSION In this observational cohort study, hydrophilic statins were associated with a modest risk reduction in incident HF as compared to lipophilic statins. Future research replicating these findings in different populations is recommended.
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Affiliation(s)
- Tasnim Imran
- Cardiology Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts, USA.,Division of Aging, Department of Medicine, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts, USA
| | - Adrian Wong
- Division of General Internal Medicine and Primary Care, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Sebastian Schneeweiss
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Rishi J Desai
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA,
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188
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Jadeja RN, Jones MA, Fromal O, Powell FL, Khurana S, Singh N, Martin PM. Loss of GPR109A/HCAR2 induces aging-associated hepatic steatosis. Aging (Albany NY) 2020; 11:386-400. [PMID: 30659164 PMCID: PMC6366969 DOI: 10.18632/aging.101743] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 12/20/2018] [Indexed: 12/31/2022]
Abstract
GPR109A agonists have been used for the treatment of obesity however, the role of GPR109A in regulating aging-associated alterations in lipid metabolism is unknown. In this study we used Gpr109a-/- mice to investigate the effect of aging in the regulation of lipid accumulation. We observed that in mouse and human livers, in addition to Kupffer cells, GPR109A is expressed in hepatocytes. Over 12 months, compared to wild type (WT), Gpr109a-/- mice gained significantly more weight. Food intake and levels of serum lipids were similar among both groups. Compared to age-matched WT mice, 12-months old Gpr109a-/- mice had significantly increased liver weight, hepatic steatosis and serum markers of liver injury. The fatty liver phenotype in Gpr109a-/- mice was associated with increased hepatic expression of lipogenesis genes and decreased expression of lipolysis genes. Gpr109a-/- mice had significantly increased fat tissues, which was associated with significant increase in adipocyte diameter and surface area. Adipose tissue from Gpr109a-/- mice had increased expression of lipogenesis genes; however, expression of lipolytic genes was similar in both groups. Collectively, these results indicate that during aging, GPR109A modulates de novo lipid accumulation in liver and adipose tissue, and its dysregulation can lead to age-associated obesity and hepatic steatosis.
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Affiliation(s)
- Ravirajsinh N Jadeja
- Department of Biochemistry and Molecular Biology, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA.,James and Jean Culver Vision Discovery Institute, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
| | - Malita A Jones
- Department of Biochemistry and Molecular Biology, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
| | - Ollya Fromal
- Department of Biochemistry and Molecular Biology, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
| | - Folami L Powell
- Department of Biochemistry and Molecular Biology, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA.,James and Jean Culver Vision Discovery Institute, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA.,Education Innovation Institute, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
| | - Sandeep Khurana
- Division of Gastroenterology, Hepatology and Nutrition and Weight Management, Geisinger Medical Center, Danville, PA 17822, USA
| | - Nagendra Singh
- Department of Biochemistry and Molecular Biology, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA.,Georgia Cancer Center, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
| | - Pamela M Martin
- Department of Biochemistry and Molecular Biology, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA.,James and Jean Culver Vision Discovery Institute, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA.,Georgia Cancer Center, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA.,Department of Ophthalmology, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA
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189
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Khaltourina D, Matveyev Y, Alekseev A, Cortese F, Ioviţă A. Aging Fits the Disease Criteria of the International Classification of Diseases. Mech Ageing Dev 2020; 189:111230. [PMID: 32251691 DOI: 10.1016/j.mad.2020.111230] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/04/2020] [Accepted: 03/09/2020] [Indexed: 12/24/2022]
Abstract
The disease criteria used by the World Health Organization (WHO) were applied to human biological aging in order to assess whether aging can be classified as a disease. These criteria were developed for the 11th revision of the International Classification of Diseases (ICD) and included disease diagnostics, mechanisms, course and outcomes, known interventions, and linkage to genetic and environmental factors. RESULTS: Biological aging can be diagnosed with frailty indices, functional, blood-based biomarkers. A number of major causal mechanisms of human aging involved in various organs have been described, such as inflammation, replicative cellular senescence, immune senescence, proteostasis failures, mitochondrial dysfunctions, fibrotic propensity, hormonal aging, body composition changes, etc. We identified a number of clinically proven interventions, as well as genetic and environmental factors of aging. Therefore, aging fits the ICD-11 criteria and can be considered a disease. Our proposal was submitted to the ICD-11 Joint Task force, and this led to the inclusion of the extension code for "Ageing-related" (XT9T) into the "Causality" section of the ICD-11. This might lead to greater focus on biological aging in global health policy and might provide for more opportunities for the new therapy developers.
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Affiliation(s)
- Daria Khaltourina
- Department of Risk Factor Prevention, Federal Research Institute for Health Organization and Informatics of Ministry of Health of the Russian Federation, Dobrolyubova St. 11, Moscow, 127254, Russia; International Longevity Alliance, 19 avenue Jean Jaurès, Sceaux, 92330, France.
| | - Yuri Matveyev
- Research Lab, Moscow Regional Research and Clinical Institute, Schepkina St. 61/2 k.1, Moscow, 129110, Russia
| | - Aleksey Alekseev
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, GSP-1, Moscow, 119991, Russia
| | - Franco Cortese
- Biogerontology Research Foundation, Apt 2354 Chynoweth House, Trevissome Park, Truro, London, TR4 8UN, UK
| | - Anca Ioviţă
- International Longevity Alliance, 19 avenue Jean Jaurès, Sceaux, 92330, France
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190
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Jin CJ, Baumann A, Brandt A, Engstler AJ, Nier A, Hege M, Schmeer C, Kehm R, Höhn A, Grune T, Witte OW, Bergheim I. Aging-related liver degeneration is associated with increased bacterial endotoxin and lipopolysaccharide binding protein levels. Am J Physiol Gastrointest Liver Physiol 2020; 318:G736-G747. [PMID: 32090603 DOI: 10.1152/ajpgi.00345.2018] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Aging is a risk factor in the development of many diseases, including liver-related diseases. The two aims of the present study were 1) to determine how aging affects liver health in mice in the absence of any interventions and 2) if degenerations observed in relation to blood endotoxin levels are critical in aging-associated liver degeneration. Endotoxin levels and markers of liver damage, mitochondrial dysfunction, insulin resistance, and apoptosis as well as the Toll-like receptor 4 (Tlr-4) signaling cascade were studied in liver tissue and blood, respectively, of 3- and 24-mo-old male C57BL/6J mice. In a second set of experiments, 3- to 4-mo-old and 14-mo-old female lipopolysaccharide-binding protein (LBP)-/- mice and littermates fed standard chow, markers of liver damage, insulin resistance, and mitochondrial dysfunction were assessed. Plasma activity of aspartate aminotransferase and histological signs of hepatic inflammation and fibrosis were significantly higher in old C57BL/6J mice than in young animals. The number of neutrophils, CD8α-positive cells, and mRNA expression of markers of apoptosis were also significantly higher in livers of old C57BL/6J mice compared with young animals, being also associated with a significant induction of hepatic Tlr-4 and LBP expression as well as higher endotoxin levels in peripheral blood. Compared with age-matched littermates, LBP-/- mice display less signs of senescence in liver. Taken together, our data suggest that, despite being fed standard chow, old mice developed liver inflammation and beginning fibrosis and that bacterial endotoxin may play a critical role herein.NEW & NOTEWORTHY Old age in mice is associated with marked signs of liver degeneration, hepatic inflammation, and fibrosis. Aging-associated liver degeneration is associated with elevated bacterial endotoxin levels and an induction of lipopolysaccharide-binding protein (LBP) and Toll-like receptor 4-dependent signaling cascades in liver tissue. Furthermore, in old aged LBP-/- mice, markers of senescence seem to be lessened, supporting the hypothesis that bacterial endotoxin levels might be critical in aging-associated decline of liver.
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Affiliation(s)
- Cheng Jun Jin
- Institute of Nutrition, SD Model Systems of Molecular Nutrition, Friedrich-Schiller-University Jena, Jena, Germany.,Clinic for Gastroenterology, Hepatology, and Infectiology, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Anja Baumann
- Institute of Nutrition, SD Model Systems of Molecular Nutrition, Friedrich-Schiller-University Jena, Jena, Germany.,Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
| | - Annette Brandt
- Institute of Nutrition, SD Model Systems of Molecular Nutrition, Friedrich-Schiller-University Jena, Jena, Germany.,Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
| | - Anna Janina Engstler
- Institute of Nutrition, SD Model Systems of Molecular Nutrition, Friedrich-Schiller-University Jena, Jena, Germany.,Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
| | - Anika Nier
- Institute of Nutrition, SD Model Systems of Molecular Nutrition, Friedrich-Schiller-University Jena, Jena, Germany.,Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
| | - Marianne Hege
- Institute of Nutrition, SD Model Systems of Molecular Nutrition, Friedrich-Schiller-University Jena, Jena, Germany
| | - Christian Schmeer
- Hans-Berger Department of Neurology, University Hospital Jena, Jena, Germany
| | - Richard Kehm
- German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany
| | - Annika Höhn
- German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany
| | - Tilman Grune
- German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany.,German Center for Diabetes Research, Munich-Neuherberg, Germany
| | - Otto W Witte
- Hans-Berger Department of Neurology, University Hospital Jena, Jena, Germany
| | - Ina Bergheim
- Institute of Nutrition, SD Model Systems of Molecular Nutrition, Friedrich-Schiller-University Jena, Jena, Germany.,Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
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191
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Zhou S, Hui TCH, Pua U. Percutaneous thermal ablation of hepatocellular carcinoma in the older population. J Geriatr Oncol 2020; 11:1161-1163. [PMID: 32247666 DOI: 10.1016/j.jgo.2020.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/25/2020] [Accepted: 03/04/2020] [Indexed: 01/23/2023]
Affiliation(s)
- Shicheng Zhou
- Singapore Health Services, 31 Third Hospital Ave, #03-03 Bowyer Block C, Singapore 168753, Singapore.
| | - Terrence Chi Hong Hui
- Department of Diagnostic Radiology, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore 308433, Singapore
| | - Uei Pua
- Department of Diagnostic Radiology, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore 308433, Singapore.
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192
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Abstract
The aging of the population, the increased prevalence of chronic liver diseases in elderly and the need to broaden the list of potential liver donors enjoin us to better understand what is an aged liver. In this review, we provide a brief introduction to cellular senescence, revisit the main morphological and functional modifications of the liver induced by aging, particularly concerning metabolism, immune response and regeneration, and try to elude some of the signalling pathways responsible for these modifications. Finally, we discuss the clinical consequences of aging on chronic liver diseases and the implications of older age for donors and recipients in liver transplantation.
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193
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Morales-Prieto N, López de Lerma N, Pacheco IL, Huertas-Abril PV, Pérez J, Peinado R, Abril N. Protective effect of Pedro-Ximénez must against p,p'-DDE-induced liver damages in aged Mus spretus mice. Food Chem Toxicol 2020; 136:110984. [DOI: 10.1016/j.fct.2019.110984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 11/14/2019] [Accepted: 11/17/2019] [Indexed: 02/07/2023]
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194
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Guo D, Shen Y, Li W, Li Q, Miao Y, Zhong Y. Upregulation of flavin-containing monooxygenase 3 mimics calorie restriction to retard liver aging by inducing autophagy. Aging (Albany NY) 2020; 12:931-944. [PMID: 31927537 PMCID: PMC6977670 DOI: 10.18632/aging.102666] [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: 09/21/2019] [Accepted: 12/24/2019] [Indexed: 02/06/2023]
Abstract
Flavin-containing monooxygenase 3 (FMO3) gene expression is often upregulated in long-lived murine models. However, the specific relationship between FMO3 and aging remains unknown. Here, we show that 40% calorie restriction (CR), which is considered to be one of the most robust interventions to delay aging progression, markedly upregulates FMO3. Most importantly, upregulation of hepatocyte FMO3 in murine models prevented or reversed hepatic aging. Accordingly, the upregulation of FMO3 mimicked the effects of CR: reduced serum levels of pro-inflammatory cytokine interleukin-6 and fasting insulin; relief of oxidative stress, with lower hepatic malondialdehyde levels and higher superoxide dismutase activity; reduced serum and hepatic levels of total cholesterol and triglyceride, as well as reduced lipid deposition in the liver; and diminished levels of aging-related markers β-gal and p16. There were also synergistic effects between FMO3 upregulation and CR. Inhibition of autophagy blocked the anti-aging effects of upregulation of hepatocyte FMO3, including reversing the amelioration of the serum and hepatic parameters related to inflammation, oxidative stress, lipid metabolism, liver function, and hepatocyte senescence. Our results suggest that the upregulation of FMO3 mimics CR to prevent or reverse hepatic aging by promoting autophagy.
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Affiliation(s)
- Donghao Guo
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Yun Shen
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Wei Li
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qinjie Li
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Ya Miao
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yuan Zhong
- Department of Geriatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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195
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Omidi M, Ahangarpour A, Khorsandi L, Ramezani- AliAkbari F. The antidiabetic and hepatoprotective effects of myricitrin on aged mice with D-galactose. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH 2020; 13:247-253. [PMID: 32821355 PMCID: PMC7417486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM The present study aims to evaluate the effects of antidiabetic and hepatoprotective of myricitrin in the aged mice induced by D-galactose (D-gal). BACKGROUND Aging occurs during a person's life; there has been no way to stop the aging process, but antioxidant and changing lifestyles can delay it. METHODS In this experimental study, 72 female adult mice (weighing30-35g) were randomly divided into six groups: 1: control, 2: D-gal at 500mg/kg/d, 3-5: D-gal+ Myricitrin at 5, 10 and 20mg/kg/d 6: D-gal+ Vitamin E at 100mg/kg/d. Aging induced by D-gal for 45 days via intraperitoneal. Myricitrin and Vitamin E administrated orally by gavage for the last 28 days. The blood glucose, insulin level, β-cell function, insulin resistance, hepatic enzymes, lipid profile, and histology of the liver, and pancreas were evaluated. RESULTS D-gal injection increased the glucose (p<0.001) and insulin levels (p<0.01) compared to control group. Myricitrin (p<0.01) and Vitamin E (p<0.001) increased insulin and decreased blood glucose levels compared to D-gal group. Myricitrin had a similar impact on insulin levels to vitamin E. Insulin resistance induced in the D-gal group (p<0.001). Myricitrin reduced insulin resistance and increased β-cell function (p<0.01) compared to D-gal group. D-gal elevated (p<0.01) cholesterol, LDL and triglyceride level, myricitrin (p<0.001), and Vitamin E (p<0.05) were reduced. CONCLUSION D-gal-induced aging causes the accumulation of RBCs, inflammation in the liver, and changes in the number and diameter of Langerhans islets in the pancreas. Myricitrin improved these D-gal effects. Myricitrin had the anti-diabetic and hepatoprotective effects on the aged mice induced by D-galactose.
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Affiliation(s)
- Mina Omidi
- Student Research Committee, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
| | - Akram Ahangarpour
- Department of Physiology, Health Research Institute, Diabetes Research Center, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Layasadat Khorsandi
- Department of Anatomical Sciences, School of Medicine, Cell & Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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196
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Shykholeslami Z, Abdi A, Barari A, Hosseini SA. The effect of aerobic training with Citrus aurantium L. on SIRT1 and PGC-1α gene expression levels in the liver tissue of elderly rats. JORJANI BIOMEDICINE JOURNAL 2019. [DOI: 10.29252/jorjanibiomedj.7.4.57] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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197
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Qian L, Zhang H, Gu Y, Li D, He S, Wang H, Cheng Y, Yang W, Yu H, Zhao X, Cai W, Meng L, Jin M, Wang Y, Zhang Y. Reduced production of laminin by hepatic stellate cells contributes to impairment in oval cell response to liver injury in aged mice. Aging (Albany NY) 2019; 10:3713-3735. [PMID: 30513510 PMCID: PMC6326669 DOI: 10.18632/aging.101665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/15/2018] [Indexed: 12/13/2022]
Abstract
Aged liver is usually impaired in response to hepatic injury. Tissue-specific stem cells participate in the repair of tissue injury. However, how oval cells (OCs) respond to injury and how the process is regulated by tissue microenvironment in aged mice have not been fully understood. In this study, taking advantage of well-established murine OC activation model, we demonstrated that OCs were less activated upon injury in aged mice and the impairment was mainly attributed to dysfunction in their niche. Through analyzing global gene expression, we found that the genes differentially expressed in damaged young and aged mouse liver tissues were predominantly those required for the formation and remodeling of extracellular matrix. As one of the most important extracellular matrix components in the OC niche, laminin was shown to promote the proliferation of OCs. Not surprisingly, laminin was downregulated with aging. Consistent with the downregulation of genes encoding DNA-dependent protein kinase (DNA-PK) proteins in aged hepatic stellate cells (HSCs), inhibition of DNA-PK also led to reduced expression of laminin in HSCs. Moreover, impairment in OC activation caused by less supporting from DNA-damaged HSCs could be rescued by laminin. This study reveals a new cellular mechanism underlying impaired OCs functionality during aging.
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Affiliation(s)
- Liu Qian
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China.,Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Hui Zhang
- Department of General Surgery, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Yuting Gu
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Dechun Li
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China
| | - Songbing He
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China
| | - Hui Wang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China.,Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yiji Cheng
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Wanlin Yang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China
| | - Hongshuang Yu
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xiaonan Zhao
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Wei Cai
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Lijun Meng
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China
| | - Min Jin
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yanan Wang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China
| | - Yanyun Zhang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Institutes for Translational Medicine, Soochow University, Suzhou, China.,Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine and Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
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198
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Mabuza LP, Gamede MW, Maikoo S, Booysen IN, Nguban PS, Khathi A. Hepatoprotective Effects of a Ruthenium(II) Schiff Base Complex in Rats with Diet-Induced Prediabetes. Curr Ther Res Clin Exp 2019; 91:66-72. [PMID: 31871510 PMCID: PMC6911857 DOI: 10.1016/j.curtheres.2019.100570] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 10/13/2019] [Indexed: 12/18/2022] Open
Abstract
Ruthenium(II) Schiff-base complex normalizes liver damage biomarker enzymes. Ruthenium(II) Schiff-base complex reduced hepatic lipid accumulation and restored liver and body weight. Ruthenium(II) Schiff-base complex decreased plasma SREBP-1c levels. Ruthenium(II) Schiff-base complex prevented hepatomegaly and prediabetes-related NAFLD progression.
Background Progressive insulin resistance in a prediabetic state has been reported to be the predominant causative factor for the development of nonalcoholic fatty liver disease. The combination of dietary modification and pharmacotherapy has been recommended to manage diabetic liver complications. However, poor patient compliance and toxicity of current drug therapy on liver function still results; thus, newer alternative drugs are required. Objective This study sought to investigate the hepatoprotective effects of the ruthenium(II) Schiff base complex in the presence and absence of dietary intervention in a diet-induced pre-diabetic rat model. Methods Prediabetic rats were randomly allocated to respective treatment groups. The ruthenium-based compound (15 mg/kg) was administered to the prediabetic rats in both the presence and absence of dietary intervention once a day every third day for 12 weeks. Results The administration of the ruthenium compound in both the presence and absence of dietary intervention resulted in the restoration of liver and body weights. This treatment also reduced liver damage enzyme biomarkers, bilirubin, and sterol regulatory element binding protein 1c concentrations in the plasma. Conclusions The ruthenium(II) complex showed beneficial effects as it ameliorated and prevented the progression of diabetes-related liver derangements while eliminating the hepatotoxicity associated with the use of metal compounds. However, further studies are still required to further determine the physiological mechanisms behind this effect.
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Affiliation(s)
- Lindokuhle Patience Mabuza
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
- Address correspondence to: L.P. Mabuza, Lindokuhle Patience Mabuza, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, South Africa.
| | - Mlindeli Wilkinson Gamede
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Sanam Maikoo
- School of Chemistry and Physics, College of Engineering and Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Irvin Noel Booysen
- School of Chemistry and Physics, College of Engineering and Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Phikelelani Siphosethu Nguban
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Andile Khathi
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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Nam JS, Kim WJ, An SM, Choi DK, Chin JH, Lee EH, Choi IC. Age-dependent relationship between preoperative serum aminotransferase and mortality after cardiovascular surgery. Aging (Albany NY) 2019; 11:9060-9074. [PMID: 31627189 PMCID: PMC6834416 DOI: 10.18632/aging.102374] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 10/12/2019] [Indexed: 12/27/2022]
Abstract
Although serum aminotransferase levels are frequently measured for preoperative evaluation, their prognostic value to postoperative outcomes remain unclear. This study aimed to investigate the relationship between preoperative serum aminotransferase levels and postoperative 90-day mortality in patients undergoing cardiovascular surgery. We included adult patients (n=6264) who underwent cardiovascular surgery between January 2010 and December 2016 at a tertiary academic hospital. Preoperative serum alanine aminotransferase (ALT), serum aspartate aminotransferase (AST), and De Ritis ratio (defined as AST/ALT) were categorized into three groups: low (≤20th percentile), middle (20th–80th percentile), and high (>80th percentile). Of the 6264 patients enrolled (40.4% women; median age, 62 years), 183 (2.9%) died within 90 days postoperatively. Multivariable-adjusted analyses revealed low ALT (hazard ratio 1.58, 95% confidence interval, 1.14–2.18) and high De Ritis ratio (hazard ratio 1.59, 95% confidence interval, 1.15–2.20) were independent predictors of postoperative mortality, but AST did not have a statistically significant association. The association of low ALT and high De Ritis ratio with 90-day mortality was more pronounced in patients older than 60 years (P-values for interaction <0.05). Therefore, preoperative serum aminotransferase levels may be a valuable prognostic marker in patients with cardiovascular surgery, particularly in the elderly.
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Affiliation(s)
- Jae-Sik Nam
- Department of Anesthesiology and Pain Medicine, Laboratory for Perioperative Outcomes Analysis and Research, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Wook-Jong Kim
- Department of Anesthesiology and Pain Medicine, Laboratory for Perioperative Outcomes Analysis and Research, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Sang-Mee An
- Department of Anesthesiology and Pain Medicine, Laboratory for Perioperative Outcomes Analysis and Research, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Dae-Kee Choi
- Department of Anesthesiology and Pain Medicine, Laboratory for Perioperative Outcomes Analysis and Research, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Ji-Hyun Chin
- Department of Anesthesiology and Pain Medicine, Laboratory for Perioperative Outcomes Analysis and Research, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Eun-Ho Lee
- Department of Anesthesiology and Pain Medicine, Laboratory for Perioperative Outcomes Analysis and Research, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - In-Cheol Choi
- Department of Anesthesiology and Pain Medicine, Laboratory for Perioperative Outcomes Analysis and Research, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
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Wiraagni IA, Mohd MA, bin Abd Rashid R, Haron DEBM. Validation of a simple extraction procedure for bisphenol A identification from human plasma. PLoS One 2019; 14:e0221774. [PMID: 31581189 PMCID: PMC6776257 DOI: 10.1371/journal.pone.0221774] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 08/14/2019] [Indexed: 12/16/2022] Open
Abstract
The general population is exposed to bisphenol A (BPA) orally, parenterally, transdermally, and environmentally as a result of the use of BPA in food packaging, plastics, and personal care products. The majority of the population nowadays (91-99%) has detectable levels of BPA inside their body. In this study, we successfully performed an inexpensive, rapid, and simple protein precipitation procedure for extraction of BPA from human plasma, followed by analysis by LC-MS/MS. This method was specifically developed for handling large numbers of samples with minimum cost and volume of sample. The developed method was accurate, precise, and reproducible for quantification of BPA from human plasma samples in the concentration range of 10-2000 ng/mL. The method was performed on samples from 150 healthy volunteers who were enrolled in the study. The mean of observed BPA level was 2.22 ± 9.91 ng/mL. Higher BPA levels were observed for females compare to that of males (p-value = 0.002), the BPA levels were higher in participants 33 years of age and older compared to those less than 33 years of age (p-value = 0.000), then the BPA levels higher in subjects with tap water as source of drinking (p-value = 0.005). This method may be valuable for general risk assessment of BPA for a large and varied population because of its efficiency and economical aspects.
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Affiliation(s)
- Idha Arfianti Wiraagni
- Department of Pathology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- Department of Forensic Medicine and Medicolegal, Faculty of Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Mustafa Ali Mohd
- Shimadzu‐UM Center for Xenobiotics Studies (SUCXeS), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Rusdi bin Abd Rashid
- Department of Psychological Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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