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Yoon HJ, Doyle MA, Altemus ME, Bethi R, Lago SH, Winder DG, Calipari ES. Operant ethanol self-administration behaviors do not predict sex differences in continuous access home cage drinking. Alcohol 2024:S0741-8329(24)00114-9. [PMID: 39218047 DOI: 10.1016/j.alcohol.2024.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 07/03/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024]
Abstract
Understanding sex differences in disease prevalence is critical to public health, particularly in the context of alcohol use disorder (AUD). The goal of this study was to understand sex differences in ethanol drinking behavior and define the precise conditions under which sex differences emerge. Consistent with prior work, C57BL/6J females drank more than males under continuous access two-bottle choice conditions. However, using ethanol self-administration - where an operant response results in access to an ethanol sipper for a fixed time period - we found no sex differences in operant response rates or ethanol consumption (volume per body weight consumed, as well as lick behavior). This remained true across a wide range of parameters including acquisition, when the ethanol sipper access period was manipulated, and when the concentration of the ethanol available was scaled. The only sex differences observed were in total ethanol consumption, which was explained by differences in body weight between males and females, rather than by sex differences in motivation to drink. Using dimensionality reduction approaches, we found that drinking behavior in the operant context did not cluster by sex, but rather clustered by high and low drinking phenotypes. Interestingly, these high and low drinking phenotypes in the operant context showed no correlation with those same categorizations in the home cage context within the same animals. These data underscore the complexity of sex differences in ethanol consumption, highlighting the important role that drinking conditions/context plays in the expression of these differences.
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Affiliation(s)
- Hye Jean Yoon
- Department of Pharmacology, Vanderbilt University, Nashville, TN, USA; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, TN, USA
| | - Marie A Doyle
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, TN, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA; Department of Neurobiology, UMass Chan Medical School, Worcester, MA, USA
| | - Megan E Altemus
- Department of Pharmacology, Vanderbilt University, Nashville, TN, USA; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, TN, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA; Department of Psychiatry and Behavioral Sciences, Vanderbilt University, Nashville, TN, USA
| | - Rishik Bethi
- Department of Pharmacology, Vanderbilt University, Nashville, TN, USA; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, TN, USA
| | - Sofia H Lago
- Department of Pharmacology, Vanderbilt University, Nashville, TN, USA; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, TN, USA
| | - Danny G Winder
- Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, TN, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA; Department of Neurobiology, UMass Chan Medical School, Worcester, MA, USA
| | - Erin S Calipari
- Department of Pharmacology, Vanderbilt University, Nashville, TN, USA; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA; Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, TN, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN, USA; Department of Psychiatry and Behavioral Sciences, Vanderbilt University, Nashville, TN, USA.
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De Oliveira Sergio T, Darevsky D, Kellner J, de Paula Soares V, de Cassia Albino M, Maulucci D, Wean S, Hopf FW. Sex- and estrous-related response patterns for alcohol depend critically on the level of compulsion-like challenge. Prog Neuropsychopharmacol Biol Psychiatry 2024; 133:111008. [PMID: 38641236 PMCID: PMC11423807 DOI: 10.1016/j.pnpbp.2024.111008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/29/2024] [Accepted: 04/14/2024] [Indexed: 04/21/2024]
Abstract
Alcohol use disorder is a substantial social and economic burden. During the last years, the number of women with drinking problems has been increasing, and one main concern is that they are particularly more vulnerable to negative consequences of alcohol. However, little is known about female-specific response patterns for alcohol, and potential underlying differences in brain mechanisms, including for compulsion-like alcohol drinking (when intake persists despite adverse consequences). We used lickometry to assess behavioral microstructure in adult Wistar male and female rats (n = 28-30) during alcohol-only drinking or moderate- or higher-challenge alcohol compulsion (10 or 60 mg/l quinine in alcohol, respectively). Estrous stages were determined and related to drinking levels and patterns of responding to alcohol, as was ovariectomy. Our findings showed that females (where we didn't determine estrus stage) had similar total licks in a session as males, but significantly longer licking bouts under alcohol-only and moderate-challenge, suggesting greater persistence. Further, greater intake under alcohol-only and moderate-challenge was related to faster licking in males, while female consumption was not related to licking speed. Thus, females could have increased persistence without greater vigor, unlike males. However, under higher-challenge, faster licking did predict higher intake in females, similar to males. To better understand female higher-challenge responding, we examined drinking in relation to phases of the estrous cycle. Higher-challenge had longer bouts only in late diestrus. In addition, ovariectomy led to longer bouts only under higher-challenge, suggesting that conditions with reduced hormone levels could increase female persistence for alcohol under higher-challenge. However, ovariectomy also reduced alcohol-only and moderate-challenge drinking but did not reduce bout length. Thus, intake level and response strategy could be regulated somewhat differently by ovarian hormones. Finally, moderate-challenge licking speed was less variable during early diestrus, and we previously showed more stereotyped responding specifically under moderate-challenge in males. By combining behavioral microstructure and sex- and estrus-related changes in drinking patterns, our results suggest that females have greater persistence for alcohol under lower-challenge drinking, while late diestrus and ovariectomy unmasked greater persistence under higher-challenge. Together, our novel insights could help develop more effective and personalized treatments for problematic alcohol use.
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Affiliation(s)
- Thatiane De Oliveira Sergio
- Department of Psychiatry, Indiana University School of Medicine (IUSOM), Indianapolis, IN, USA; Stark Neuroscience Research Institute, IUSOM, Indianapolis, IN, USA
| | - David Darevsky
- University of California at Berkeley-UCSF Graduate Program in Bioengineering, USA; UCSF Medical Scientist Training Program, San Francisco, CA, USA
| | - Jacob Kellner
- Department of Psychiatry, Indiana University School of Medicine (IUSOM), Indianapolis, IN, USA; Stark Neuroscience Research Institute, IUSOM, Indianapolis, IN, USA
| | - Vanessa de Paula Soares
- Laboratory of Psychopharmacology, Department of Biophysics and Pharmacology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Maryelle de Cassia Albino
- Laboratory of Psychopharmacology, Department of Biophysics and Pharmacology, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Danielle Maulucci
- Department of Psychiatry, Indiana University School of Medicine (IUSOM), Indianapolis, IN, USA; Stark Neuroscience Research Institute, IUSOM, Indianapolis, IN, USA
| | - Sarah Wean
- Department of Psychiatry, Indiana University School of Medicine (IUSOM), Indianapolis, IN, USA; Stark Neuroscience Research Institute, IUSOM, Indianapolis, IN, USA
| | - Frederic W Hopf
- Department of Psychiatry, Indiana University School of Medicine (IUSOM), Indianapolis, IN, USA; Stark Neuroscience Research Institute, IUSOM, Indianapolis, IN, USA.
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Starski P, Siegle A, Hopf FW. Engagement for alcohol escalates in the 5-choice serial reaction time task after intermittent access. Alcohol 2024; 115:79-92. [PMID: 38286210 PMCID: PMC11278111 DOI: 10.1016/j.alcohol.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/16/2024] [Accepted: 01/21/2024] [Indexed: 01/31/2024]
Abstract
Excessive intake plays a significant role in the development of alcohol use disorder and impacts 15 million Americans annually, with approximately 88 000 dying from alcohol related deaths. Several facets we contribute to alcohol use disorder include impulsivity, motivation, and attention. Previous studies have used the 5-Choice Serial Reaction Time Task (5-Choice) to analyze these types of behaviors using sugar, but recently we have published using 10% alcohol as the reward. This study analyzed 48 mice that were trained to respond for alcohol in the 5-Choice. All mice distributed and analyzed first by alcohol preference and then by consumption. Here, we became interested in a new classification called "engagement". High-engaged and low-engaged mice were determined by the number of correct responses during final Late-Stage training sessions. Interestingly, during Early-Stage training, the mice began to separate themselves into two groups based on their interaction with the task. Throughout both training stages, high-engaged mice displayed a greater number of trials and correct responses, as well as a lower percentage of omissions compared to low-engaged mice. Following three weeks of intermittent access homecage drinking, low-engaged mice showed greater increase in perseverative responding relative to high-engaged. Additionally, low-engaged mice decreased their reward and correct latencies compared to high-engaged mice suggesting an increase in motivation for alcohol. Overall, engagement analysis presents two clearly different groups, with only one being motivated to work for alcohol. These two distinct phenotypes in the 5-Choice could be used to model alcohol motivated behavior, which could help us further understand alcohol use disorder.
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Affiliation(s)
- Phillip Starski
- Dept. Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Addyson Siegle
- Dept. Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - F Woodward Hopf
- Dept. Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA.
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4
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Kityo A, Lee SA. Independent and additive effects of binge drinking and obesity on liver enzymes: a cross-sectional analysis using the Korean National Health Insurance Service data. Gastroenterol Rep (Oxf) 2024; 12:goad074. [PMID: 38222462 PMCID: PMC10784631 DOI: 10.1093/gastro/goad074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/07/2023] [Accepted: 12/10/2023] [Indexed: 01/16/2024] Open
Abstract
Background Binge drinking (BD) has been associated with elevated liver enzymes, but the joint association of BD and adiposity with liver enzymes is understudied. We aimed to examine the combined association of BD and obesity with elevated liver enzymes. Methods Data were obtained from 285,600 patients in the Korean National Health check-up program during 2009-2015. Level I BD (BD I) was defined as alcohol consumption of >60 g (men) or >40 g (women) on one occasion in the previous year. High-intensity BD (HIBD) corresponded to at least two times the BD I levels. General and abdominal obesity were defined by body mass index and waist circumference. Logistic regression was used to examine the independent and joint associations of BD and obesity with elevated alanine aminotransferase (ALT), aspartate aminotransferase (AST), and gamma-glutamyl transferase (GGT) levels. Relative excess risk (RERI), attributable proportion (AP), and synergy index (SI) were calculated to estimate the additive interaction effects. Results The mean age was 42.1 ± 0.03 years and 50.2% were women. Elevated ALT [odds ratio (OR) 1.09, 95% confidence interval (CI) 1.02-1.16], AST (OR 1.16, 95% CI 1.11-1.23), and GGT (OR 1.84, 95% CI 1.05-1.94) were associated with HIBD. Higher odds of elevated ALT (OR 3.57, 95% CI 3.43-3.71), AST (OR 3.47, 95% CI 3.37-3.58), and GGT (OR 2.10, 95% CI 1.98-2.12) were observed in individuals with general obesity. A similar trend was observed for abdominal obesity. The RERI, AP, and SI for the interaction effect of BD and general obesity were 23%, 7%, and 13% for elevated AST levels, and 67%, 24%, and 58% for elevated GGT levels, respectively. Similar effects were observed for the interaction between BD and abdominal obesity. Conclusions Obesity aggravated the odds of elevated liver AST and GGT levels in HIBD.
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Affiliation(s)
- Anthony Kityo
- Department of Preventive Medicine, School of Medicine, Kangwon National University, Gangwon, Republic of Korea
| | - Sang-Ah Lee
- Department of Preventive Medicine, School of Medicine, Kangwon National University, Gangwon, Republic of Korea
- Interdisciplinary Graduate Program in Medical Bigdata Convergence, Kangwon National University, Gangwon, Republic of Korea
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Sharma RR, Rashid H, Bhat AM, Sajeeda A, Gupta R, Abdullah ST. Glabridin ameliorates intracellular events caused by palmitic acid and alcohol in mouse hepatocytes and fast food diet and alcohol -induced steatohepatitis and fibrosis in C57BL/6J mice model. Food Chem Toxicol 2023; 180:114038. [PMID: 37714449 DOI: 10.1016/j.fct.2023.114038] [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: 06/07/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 09/17/2023]
Abstract
Steatohepatitis is a significant risk factor for end-stage liver disease. In this study, the therapeutic potential of Glabridin (GBD), an isoflavan derived from Glycyrrhiza glabra, is investigated in in-vitro and in-vivo models against palmitic acid (PA) or fast food (FF) diet + alcohol (EtOH). Mouse hepatocytes (AML-12 cells) were treated with PA; 250 μM + EtOH; 250 μM ± GBD (10 μM and 25 μM) for 24 h. C57BL/6J mice fed with standard chow (SC) diet, fast food (FF) diet + intermittent oral ingestion of EtOH (10-50%v/v) ± GBD (20 mg/kg and 40 mg/kg) for eight (8) weeks, were analyzed for histological features of steatohepatitis and fibrosis, biochemical indexes, and protein and gene expression studies related to oxidative stress, inflammation, lipogenesis, fibrosis, and apoptosis. GBD therapy considerably reduced intracellular events in AML-12 cells exposed to PA + EtOH. GBD treatments significantly improved body metrics, biochemical indexes, and histological features in C57BL/6J mice compared to FF + EtOH. Moreover, protein and gene expression investigations revealed a strong therapeutic effects on oxidative stress, inflammation, steatosis, fibrosis, and apoptosis -related molecular signaling cascades. In conclusion, these findings suggest that GBD has a strong therapeutic potential to be developed as anti-steatohepatitis/fibrosis medicine.
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Affiliation(s)
- Raghu Rai Sharma
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Haroon Rashid
- Department of Hospital Administration, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, 190011, India
| | - Aalim Maqsood Bhat
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Archoo Sajeeda
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Ragni Gupta
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Sheikh Tasduq Abdullah
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India.
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Luo ML, Chen H, Chen GY, Wang S, Wang Y, Yang FQ. Preparation of Alcohol Dehydrogenase-Zinc Phosphate Hybrid Nanoflowers through Biomimetic Mineralization and Its Application in the Inhibitor Screening. Molecules 2023; 28:5429. [PMID: 37513303 PMCID: PMC10386709 DOI: 10.3390/molecules28145429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/06/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
A biomimetic mineralization method was used in the facile and rapid preparation of nanoflowers for immobilizing alcohol dehydrogenase (ADH). The method mainly uses ADH as an organic component and zinc phosphate as an inorganic component to prepare flower-like ADH/Zn3(PO4)2 organic-inorganic hybrid nanoflowers (HNFs) with the high specific surface area through a self-assembly process. The synthesis conditions of the ADH HNFs were optimized and its morphology was characterized. Under the optimum enzymatic reaction conditions, the Michaelis-Menten constant (Km) of ADH HNFs (β-NAD+ as substrate) was measured to be 3.54 mM, and the half-maximal inhibitory concentration (IC50) of the positive control ranitidine (0.2-0.8 mM) was determined to be 0.49 mM. Subsequently, the inhibitory activity of natural medicine Penthorum chinense Pursh and nine small-molecule compounds on ADH was evaluated using ADH HNFs. The inhibition percentage of the aqueous extract of P. chinense is 57.9%. The vanillic acid, protocatechuic acid, gallic acid, and naringenin have obvious inhibitory effects on ADH, and their percentages of inhibition are 55.1%, 68.3%, 61.9%, and 75.5%, respectively. Moreover, molecular docking analysis was applied to explore the binding modes and sites of the four most active small-molecule compounds to ADH. The results of this study can broaden the application of immobilized enzymes through biomimetic mineralization, and provide a reference for the discovery of ADH inhibitors from natural products.
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Affiliation(s)
- Mao-Ling Luo
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Hua Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Guo-Ying Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Shengpeng Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
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7
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Yeh YT, Wu X, Ma Y, Ying Z, He L, Xue B, Shi H, Choi Y, Yu L. Single ethanol binge causes severe liver injury in mice fed Western diet. Hepatol Commun 2023; 7:e00174. [PMID: 37314747 PMCID: PMC10270551 DOI: 10.1097/hc9.0000000000000174] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 04/13/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND AND AIMS Alcohol-associated liver disease (ALD) and NAFLD often coexist in Western societies that consume energy-rich and cholesterol-containing Western diets. Increased rates of ALD mortality in young people in these societies are likely attributable to binge drinking. It is largely unknown how alcohol binge causes liver damage in the setting of Western diets. APPROACH AND RESULTS In this study, we showed that a single ethanol binge (5 g/kg body weight) induced severe liver injury as shown by marked increases in serum activities of the 2 aminotransferases AST and ALT in C57BL/6J mice that have been fed a Western diet for 3 weeks. The Western diet plus binge ethanol-fed mice also displayed severe lipid droplet deposition and high contents of triglycerides and cholesterol in the liver, which were associated with increased lipogenic and reduced fatty acid oxidative gene expression. These animals had the highest Cxcl1 mRNA expression and myeloperoxidase (MPO)-positive neutrophils in the liver. Their hepatic ROS and lipid peroxidation were the highest, but their hepatic levels of mitochondrial oxidative phosphorylation proteins remained largely unaltered. Hepatic levels of several ER stress markers, including mRNAs for CHOP, ERO1A, ERO1B, BIM, and BIP, as well as Xbp1 splicing and proteins for BIP/GRP78 and IRE-α were also the highest in these animals. Interestingly, Western diet feeding for 3 weeks or ethanol binge dramatically increased hepatic caspase 3 cleavage, and the combination of the 2 did not further increase it. Thus, we successfully established a murine model of acute liver injury by mimicking human diets and binge drinking. CONCLUSIONS This simple Western diet plus single ethanol binge model recapitulates major hepatic phenotypes of ALD, including steatosis and steatohepatitis characterized by neutrophil infiltration, oxidative stress, and ER stress.
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Affiliation(s)
- Yu-Te Yeh
- Department of Medicine, Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Xiangdong Wu
- Department of Medicine, Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Yinyan Ma
- Department of Medicine, Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Zhekang Ying
- Department of Medicine, Division of Cardiology, University of Maryland School of Medicine, Baltimore Street, Maryland, USA
| | - Ling He
- Department of Medicine, Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Bingzhong Xue
- Department of Medicine, Division of Cardiology, University of Maryland School of Medicine, Baltimore Street, Maryland, USA
| | - Hang Shi
- Department of Medicine, Division of Cardiology, University of Maryland School of Medicine, Baltimore Street, Maryland, USA
| | - Youngshim Choi
- Department of Medicine, Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Liqing Yu
- Department of Medicine, Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, Baltimore, Maryland, USA
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Sharma RR, Rashid H, Tasduq Abdullah S. A small animal model of NASH with progressive steatohepatitis -induced by fast food diet and alcohol in C57BL/6J mouse with high human pathophysiological proximity. Food Chem Toxicol 2023:113851. [PMID: 37271273 DOI: 10.1016/j.fct.2023.113851] [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: 03/13/2023] [Revised: 05/15/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023]
Abstract
Non-alcoholic steatohepatitis (NASH) and alcoholic steatohepatitis (ASH) both can progress to end-stage liver disease (ESLD). No relevant animal models are available for studying the toxic consequences of concurrent fast food diet- and alcohol usage in fibrosing NASH. As a result, dependable and short-term In-vivo models capable of recapitulating human disease pathophysiology are required for deciphering mechanistic insights and preclinical drug discovery programs. The current study aims to develop a mouse model for progressive steatohepatitis employing a fast food (FF) diet with intermittent oral alcohol (EtOH) administration. For eight (8) weeks, C57BL/6 J mice were fed standard chow (SC) diet ± EtOH or FF ± EtOH. EtOH uses enhanced the histological characteristics of FF-induced steatohepatitis and fibrosis. A dysregulated molecular signaling cascade related to oxidative stress, steatosis, fibrosis, DNA damage, and apoptosis was evident at protein and gene expression levels in the FF + EtOH. The results from the in-vivo model were replicated in mouse hepatocyte cultures (AML-12) subjected to palmitic acid (PA) ± EtOH exposures. The results of the present study indicate that the clinical hallmarks of human progressive steatohepatitis and fibrosis were achieved in our mice model, showing its suitability for preclinical research.
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Affiliation(s)
- Raghu Rai Sharma
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi, Jammu and Kashmir, India
| | - Haroon Rashid
- Department of Hospital Administration, Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir, India
| | - Sheikh Tasduq Abdullah
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi, Jammu and Kashmir, India.
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9
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Guo C, Zheng L, Chen S, Liang X, Song X, Wang Y, Hua B, Qiu L. Thymol ameliorates ethanol-induced hepatotoxicity via regulating metabolism and autophagy. Chem Biol Interact 2023; 370:110308. [PMID: 36535314 DOI: 10.1016/j.cbi.2022.110308] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/22/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Alcoholic liver disease represents a serious threat to human health. In terms of safety and acceptability, thymol is widely used in or on foodstuffs to generate odour and taste. The present study aimed to investigate the therapeutic effect and mechanism of thymol against ethanol-induced injury in liver cells. Here we found that thymol is an effective agent for reducing ethanol-induced reactive oxygen species production in mouse liver cells. Thymol improves ethanol-induced lipid accumulation, and this corresponded to altered DGAT2 mRNA expression levels. Metabolomics data analysis showed that thymol alleviated ethanol-induced changes in the levels of thirty-four metabolites including nicotinic acid and l-arginine. By utilizing pathway enrichment analysis, altered metabolites in cells treated with ethanol and ethanol plus thymol were enriched in fourteen pathways including metabolic pathways and arginine and proline metabolism. We further confirmed the alleviation of overdose nitric oxide production in cells treated with ethanol plus thymol compared with that in ethanol-treated cells. It was interesting that up-regulated LC3-II/LC3-I ratio together with higher SQSTM1 protein abundance in ethanol-treated cells were attenuated by treatment with ethanol plus thymol. Thymol ameliorated ethanol-induced reduction of HSPA8 protein abundance. In addition, chloroquine-treated cells exhibited lower HSPA8 protein abundance compared with cells simulated with ethanol plus thymol. These data reveal that improving effect of thymol on ethanol-induced metabolic alteration is related to autophagic flux restoration. Our findings indicate that thymol is an attractive option for treating ethanol-induced liver damage.
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Affiliation(s)
- Chang Guo
- School of Life Sciences, Longyan University, Longyan, 364012, PR China; Fujian Provincial Key Laboratory for the Prevention and Control of Animal Infectious Diseases and Biotechnology, Longyan, 364012, PR China; Key Laboratory of Preventive Veterinary Medicine and Biotechnology (Longyan University), Fujian Province University, Longyan, 364012, PR China
| | - Linyan Zheng
- School of Life Sciences, Longyan University, Longyan, 364012, PR China
| | - Shuyu Chen
- School of Life Sciences, Longyan University, Longyan, 364012, PR China
| | - Xuxuan Liang
- School of Life Sciences, Longyan University, Longyan, 364012, PR China
| | - Xue Song
- School of Life Sciences, Longyan University, Longyan, 364012, PR China
| | - Yue Wang
- School of Life Sciences, Longyan University, Longyan, 364012, PR China
| | - Baoyu Hua
- School of Life Sciences, Longyan University, Longyan, 364012, PR China; Fujian Provincial Key Laboratory for the Prevention and Control of Animal Infectious Diseases and Biotechnology, Longyan, 364012, PR China; Key Laboratory of Preventive Veterinary Medicine and Biotechnology (Longyan University), Fujian Province University, Longyan, 364012, PR China
| | - Longxin Qiu
- School of Life Sciences, Longyan University, Longyan, 364012, PR China; Fujian Provincial Key Laboratory for the Prevention and Control of Animal Infectious Diseases and Biotechnology, Longyan, 364012, PR China; Key Laboratory of Preventive Veterinary Medicine and Biotechnology (Longyan University), Fujian Province University, Longyan, 364012, PR China.
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10
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Starski P, Maulucci D, Mead H, Hopf F. Adaptation of the 5-choice serial reaction time task to measure engagement and motivation for alcohol in mice. Front Behav Neurosci 2022; 16:968359. [PMID: 36187376 PMCID: PMC9522902 DOI: 10.3389/fnbeh.2022.968359] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
Alcohol use disorder (AUD) is related to excessive binge alcohol consumption, and there is considerable interest in associated factors that promote intake. AUD has many behavioral facets that enhance inflexibility toward alcohol consumption, including impulsivity, motivation, and attention. Thus, it is important to understand how these factors might promote responding for alcohol and can change after protracted alcohol intake. Previous studies have explored such behavioral factors using responding for sugar in the 5-Choice Serial Reaction Time Task (5-CSRTT), which allows careful separation of impulsivity, attention, and motivation. Importantly, our studies uniquely focus on using alcohol as the reward throughout training and testing sessions, which is critical for beginning to answer central questions relating to behavioral engagement for alcohol. Alcohol preference and consumption in male C57BL/6 mice were determined from the first 9 sessions of 2-h alcohol drinking which were interspersed among 5-CSRTT training. Interestingly, alcohol preference but not consumption level significantly predicted 5-CSRTT responding for alcohol. In contrast, responding for strawberry milk was not related to alcohol preference. Moreover, high-preference (HP) mice made more correct alcohol-directed responses than low-preference (LP) during the first half of each session and had more longer reward latencies in the second half, with no differences when performing for strawberry milk, suggesting that HP motivation for alcohol may reflect “front-loading.” Mice were then exposed to an Intermittent Access to alcohol paradigm and retested in 5-CSRTT. While both HP and LP mice increased 5-CSRTT responding for alcohol, but not strawberry milk, LP performance rose to HP levels, with a greater change in correct and premature responding in LP versus HP. Overall, this study provides three significant findings: (1) alcohol was a suitable reward in the 5-CSRTT, allowing dissection of impulsivity, attention, and motivation in relation to alcohol drinking, (2) alcohol preference was a more sensitive indicator of mouse 5-CSRTT performance than consumption, and (3) intermittent alcohol drinking promoted behavioral engagement with alcohol, especially for individuals with less initial engagement.
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Affiliation(s)
- Phillip Starski
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Danielle Maulucci
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Hunter Mead
- Department of Psychology, Indiana University-Purdue University Indianapolis (IUPUI), Indianapolis, IN, United States
| | - Frederic Hopf
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, United States
- *Correspondence: Frederic Hopf,
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11
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Diurnal Variation in Biomarkers of Exposure to Endocrine-Disrupting Chemicals and Their Association with Oxidative Damage in Norwegian Adults: The EuroMix Study. TOXICS 2022; 10:toxics10040181. [PMID: 35448442 PMCID: PMC9028082 DOI: 10.3390/toxics10040181] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 03/27/2022] [Accepted: 04/02/2022] [Indexed: 11/23/2022]
Abstract
Much evidence on the adverse health effects of endocrine-disrupting chemicals (EDCs) has accumulated during recent decades. EDCs are commonly found in various foods and personal care products (PCP). Data documenting a diurnally varying EDC metabolism in humans is scarce. This study examined (i) the time-of-day effect on the diurnal magnitude and variance of urinary biomarkers of exposure to EDCs, and (ii) the association between EDC exposures and oxidative damage in a Norwegian adult subpopulation. This was a cross-sectional panel study using biobanked samples from the EuroMix project. During a typical weekday, participants were asked to collect all day’s urine voids and record dietary and PCP habitual uses in a diary. Collected time stamps of urine voids were classified into three distinct periods in the day (morning 6 a.m.−12 p.m., mid-day 12 p.m.−6 p.m., evening 6 p.m.−6 a.m.). Questionnaires regarding demographic characteristics, personal care product usage, and dietary habits were completed. Urinary levels of EDCs (phthalates, parabens, and bisphenols) were measured using mass spectrometry and adjusted for urinary volume using specific gravity. Urinary 4-hydroxynonenal (4HNE), a lipid peroxidation marker, was measured using an immunoassay kit. Linear mixed-effect models identified EDCs under the influence of a diurnal variation effect that was adjusted for dietary habits and PCP use and examined associations between EDC and 4HNE. p-values were FDR-adjusted. Most phthalates appeared to be diurnally varying with higher urinary levels towards the evening (q < 0.001) than those measured during mid-day; this strong diurnal variation effect was not present for parabens and bisphenols. Significant (q < 0.001) positive associations were observed between all phthalates, parabens, and bisphenols (except bisphenol S) and 4HNE. This study’s findings highlighted the diurnal variation of excretion for certain EDC, but not for others, in real-life conditions. The degree of EDC chronotoxicity in distinct diurnal windows of the day warrants further investigation with longitudinal human studies.
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12
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Skinner RC, Hagaman JA. The interplay of Western diet and binge drinking on the onset, progression, and outlook of liver disease. Nutr Rev 2021; 80:503-512. [PMID: 33969426 DOI: 10.1093/nutrit/nuab031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Non-alcoholic fatty liver disease and alcoholic liver disease, the two most prevalent liver diseases worldwide, share a common pathology but have largely been considered disparate diseases. Liver diseases are widely underestimated, but their prevalence is increasing worldwide. The Western diet (high-fat, high-sugar) and binge drinking (rapid consumption of alcohol in a short period of time) are two highly prevalent features of standard life in the United States, and both are linked to the development and progression of liver disease. Yet, few studies have been conducted to elucidate their potential interactions. Data shows binge drinking is on the rise in several age groups, and poor dietary trends continue to be prevalent. This review serves to summarize the sparse findings on the hepatic consequences of the combination of binge drinking and consuming a Western diet, while also drawing conclusions on potential future impacts. The data suggest the potential for a looming liver disease epidemic, indicating that more research on its progression as well as its prevention is needed on this critical topic.
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Affiliation(s)
- R Chris Skinner
- R. C. Skinner and J. A. Hagaman are with the Division of Natural Sciences and Mathematics, University of the Ozarks, Clarksville, Arkansas, USA
| | - Joel A Hagaman
- R. C. Skinner and J. A. Hagaman are with the Division of Natural Sciences and Mathematics, University of the Ozarks, Clarksville, Arkansas, USA
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13
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Yang C, Liao AM, Cui Y, Yu G, Hou Y, Pan L, Chen W, Zheng S, Li X, Ma J, He J, Huang J. Wheat embryo globulin protects against acute alcohol-induced liver injury in mice. Food Chem Toxicol 2021; 153:112240. [PMID: 33932521 DOI: 10.1016/j.fct.2021.112240] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/26/2021] [Accepted: 04/21/2021] [Indexed: 01/06/2023]
Abstract
Wheat Embryo Globulin (WEG) is a high-quality plant-derived protein with anti-inflammatory, antioxidant, and immunity enhancement effects. WEG was prepared and characterized using free amino acid analysis, circular dichroism (CD), and scanning electron microscope (SEM). The liver protection effect of WEG on mice after acute alcohol stimulation was also investigated. Male KM mice were randomly divided into four groups (n = 10). Animals were orally administrated with WEG (60 mg/kg), silymarin (50 mg/kg), and the same volume of saline solution daily for 30 days, before administering an alcohol-intragastric injection. Results displayed that the liver index, the levels of serum total cholesterol (TC), serum triglyceride (TG), liver malondialdehyde (MDA) and the mRNA expression of CYP2E1were significantly decreased in WEG-treated mice compared with the model group. Meanwhile, the levels of serum high-density lipoprotein-cholesterol (HDL-C), hepatic reduced glutathione (GSH), superoxide dismutase (SOD) and the mRNA expression of ADH2 and ALDH2 were remarkably increased. Effect of WEG on histopathology of liver tissue confirmed its protective function. Meanwhile, GSH level of ileal was significantly increased, MDA was remarkably decreased in WEG-treated mice, which also indicated that WEG possessed a positive effect on intestinal micro ecological environment health to some extent. In conclusion, WEG is a promising agent for the prevention of acute alcoholic liver injury.
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Affiliation(s)
- Canrui Yang
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China
| | - Ai-Mei Liao
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China; Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, Zhengzhou, 450001, PR China.
| | - Yixiang Cui
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China
| | - Guanghai Yu
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China; Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, Zhengzhou, 450001, PR China
| | - Yinchen Hou
- National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, Zhengzhou, 450001, PR China; College of Food and Biological Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou, 450044, PR China
| | - Long Pan
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China; Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, Zhengzhou, 450001, PR China
| | - Wenjing Chen
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China
| | - Shuainan Zheng
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China
| | - Xiaoxiao Li
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China
| | - Jiarui Ma
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China
| | - Jiangying He
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China
| | - Jihong Huang
- School of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, PR China; Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, Zhengzhou, 450001, PR China; Henan Cooperativity Medical Science and Technology Research Institute Co., LTD, Luoyang, 471000, PR China.
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14
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Nogales F, Cebadero O, Romero-Herrera I, Rua RM, Carreras O, Ojeda ML. Selenite supplementation modulates the hepatic metabolic sensors AMPK and SIRT1 in binge drinking exposed adolescent rats by avoiding oxidative stress. Food Funct 2021; 12:3022-3032. [PMID: 33710180 DOI: 10.1039/d0fo02831b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Binge drinking (BD) is the main alcohol consumption pattern among teenagers. Recently, oxidative stress (OS) generated by BD exposure has been related to hepatic metabolic deregulation and cardiovascular dysfunction. This study analyzed if BD by generating oxidative stress modulates the alteration in hepatic energy homeostasis through two important regulators of energy metabolism: the NAD+-dependent sirtuin deacetylase (SIRT1) and AMP-activated protein kinase (AMPK) and if supplementation with the antioxidant selenium (Se) improves these metabolic disorders. Four groups of adolescent rats supplemented or not with Se (0.4 ppm) and exposed to intermittent i.p. BD were used. BD rats showed an increased AST/ALT ratio, total bilirubin in serum and lipid peroxidation in the liver. The BD rats also showed a higher abdominal/thoracic ratio and increased levels of TG, gluc, and chol compared to the control group, provoking an increase in mean blood pressure (MBP). This alcohol consumption pattern decreased hepatic Se deposits, cytoplasmic GPx activity, and GSH levels as well as the expressions of two metabolic sensors and the pAMPK/AMPK ratio. Se supplementation restored antioxidant parameters and decreased lipid oxidation, avoiding OS and improving the hepatic expression of pAMPK and SIRT1, contributing to the improvement of metabolic (better lipid profile and IRS-1 expression) and vascular function (lower MBP), and to the increase of hepatic functionality (lower AST/ALT ratio). All these actions decrease cardiometabolic risk factor development in the short and long term and could disrupt the relationship between BD and MS, two problems which are currently affecting adolescents.
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Affiliation(s)
- Fátima Nogales
- Department of Physiology, Faculty of Pharmacy, Seville University, 41012 Seville, Spain.
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15
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Asiedu B, Nyakudya TT, Lembede BW, Chivandi E. Early-life exposure to alcohol and the risk of alcohol-induced liver disease in adulthood. Birth Defects Res 2021; 113:451-468. [PMID: 33577143 DOI: 10.1002/bdr2.1881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 01/13/2021] [Accepted: 01/19/2021] [Indexed: 11/10/2022]
Abstract
Alcohol consumption remains prevalent among pregnant and nursing mothers despite the well-documented adverse effects this may have on the offspring. Moderate-to-high levels of alcohol consumption in pregnancy result in fetal alcohol syndrome (FAS) disorders, with brain defects being chief among the abnormalities. Recent findings indicate that while light-to-moderate levels may not cause FAS, it may contribute to epigenetic changes that make the offspring prone to adverse health outcomes including metabolic disorders and an increased propensity in the adolescent-onset of drinking alcohol. On the one hand, prenatal alcohol exposure (PAE) causes epigenetic changes that affect lipid and glucose transcript regulating genes resulting in metabolic abnormalities. On the other hand, it can program offspring for increased alcohol intake, enhance its palatability, and increase acceptance of alcohol's flavor through associative learning, making alcohol a plausible second hit for the development of alcohol-induced liver disease. Adolescent drinking results in alcohol dependence and abuse in adulthood. Adolescent drinking results in alcohol dependence and abuse in adulthood. Alterations on the opioid system, particularly, the mu-opioid system, has been implicated in the mechanism that induces increased alcohol consumption and acceptance. This review proposes a mechanism that links PAE to the development of alcoholism and eventually to alcoholic liver disease (ALD), which results from prolonged alcohol consumption. While PAE may not lead to ALD development in childhood, there are chances that it may lead to ALD in adulthood.
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Affiliation(s)
- Bernice Asiedu
- Faculty of Health Sciences, School of Physiology, University of the Witwatersrand, Johannesburg, South Africa
| | - Trevor Tapiwa Nyakudya
- Department of Physiology, Faculty of Health Sciences, School of Medicine, University of Pretoria, Gezina, South Africa
| | - Busisani Wiseman Lembede
- Faculty of Health Sciences, School of Physiology, University of the Witwatersrand, Johannesburg, South Africa
| | - Eliton Chivandi
- Faculty of Health Sciences, School of Physiology, University of the Witwatersrand, Johannesburg, South Africa
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16
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Anwar I, Ashfaq UA, Shokat Z. Therapeutic Potential of Umbilical Cord Stem Cells for Liver Regeneration. Curr Stem Cell Res Ther 2020; 15:219-232. [PMID: 32077830 DOI: 10.2174/1568026620666200220122536] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/16/2019] [Accepted: 08/08/2019] [Indexed: 01/18/2023]
Abstract
The liver is a vital organ for life and the only internal organ that is capable of natural regeneration. Although the liver has high regeneration capacity, excessive hepatocyte death can lead to liver failure. Various factors can lead to liver damage including drug abuse, some natural products, alcohol, hepatitis, and autoimmunity. Some models for studying liver injury are APAP-based model, Fas ligand (FasL), D-galactosamine/endotoxin (Gal/ET), Concanavalin A, and carbon tetrachloride-based models. The regeneration of the liver can be carried out using umbilical cord blood stem cells which have various advantages over other stem cell types used in liver transplantation. UCB-derived stem cells lack tumorigenicity, have karyotype stability and high immunomodulatory, low risk of graft versus host disease (GVHD), low risk of transmitting somatic mutations or viral infections, and low immunogenicity. They are readily available and their collection is safe and painless. This review focuses on recent development and modern trends in the use of umbilical cord stem cells for the regeneration of liver fibrosis.
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Affiliation(s)
- Ifrah Anwar
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Usman A Ashfaq
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Zeeshan Shokat
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
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17
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Ibars M, Maier MT, Yulyaningsih E, Perez L, Cheang R, Vilhelmsson A, Louie SM, Wegner SA, Yuan X, Eltzschig HK, Hopf FW, Nomura DK, Koliwad SK, Xu AW. Neuronal modulation of hepatic lipid accumulation induced by bingelike drinking. Am J Physiol Endocrinol Metab 2020; 318:E655-E666. [PMID: 32045262 PMCID: PMC7272724 DOI: 10.1152/ajpendo.00218.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 01/27/2020] [Accepted: 01/31/2020] [Indexed: 12/20/2022]
Abstract
Excessive alcohol consumption, including binge drinking, is a common cause of fatty liver disease. Binge drinking rapidly induces hepatic steatosis, an early step in the pathogenesis of chronic liver injury. Despite its prevalence, the process by which excessive alcohol consumption promotes hepatic lipid accumulation remains unclear. Alcohol exerts potent effects on the brain, including hypothalamic neurons crucial for metabolic regulation. However, whether or not the brain plays a role in alcohol-induced hepatic steatosis is unknown. In the brain, alcohol increases extracellular levels of adenosine, a potent neuromodulator, and previous work implicates adenosine signaling as being important for the development of alcoholic fatty liver disease. Acute alcohol exposure also increases both the activity of agouti-related protein (AgRP)-expressing neurons and AgRP immunoreactivity. Here, we show that adenosine receptor A2B signaling in the brain modulates the extent of alcohol-induced fatty liver in mice and that both the AgRP neuropeptide and the sympathetic nervous system are indispensable for hepatic steatosis induced by bingelike alcohol consumption. Together, these results indicate that the brain plays an integral role in alcohol-induced hepatic lipid accumulation and that central adenosine signaling, hypothalamic AgRP, and the sympathetic nervous system are crucial mediators of this process.
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Affiliation(s)
- Maria Ibars
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Matthew T Maier
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Ernie Yulyaningsih
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Luz Perez
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Rachel Cheang
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Anna Vilhelmsson
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
| | - Sharon M Louie
- Departments of Chemistry, Molecular and Cell Biology, and Nutritional Sciences and Toxicology, University of California, Berkeley, California
| | - Scott A Wegner
- Department of Neurology, Department of Anatomy, University of California, San Francisco, California
| | - Xiaoyi Yuan
- Department of Anesthesiology, University of Texas Health Science Center at Houston, Houston, Texas
| | - Holger K Eltzschig
- Department of Anesthesiology, University of Texas Health Science Center at Houston, Houston, Texas
| | - Frederic W Hopf
- Department of Neurology, Department of Anatomy, University of California, San Francisco, California
| | - Daniel K Nomura
- Departments of Chemistry, Molecular and Cell Biology, and Nutritional Sciences and Toxicology, University of California, Berkeley, California
| | - Suneil K Koliwad
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
- Department of Medicine, Department of Anatomy, University of California, San Francisco, California
| | - Allison W Xu
- Diabetes Center, Department of Anatomy, University of California, San Francisco, California
- Department of Anatomy, University of California, San Francisco, California
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18
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Adejumo AC, Ajayi TO, Adegbala OM, Adejumo KL, Alliu S, Akinjero AM, Onyeakusi NE, Ojelabi O, Bukong TN. Cannabis use is associated with reduced prevalence of progressive stages of alcoholic liver disease. Liver Int 2018; 38:1475-1486. [PMID: 29341392 DOI: 10.1111/liv.13696] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/09/2018] [Indexed: 02/13/2023]
Abstract
BACKGROUND Abusive alcohol use has well-established health risks including causing liver disease (ALD) characterized by alcoholic steatosis (AS), steatohepatitis (AH), fibrosis, cirrhosis (AC) and hepatocellular carcinoma (HCC). Strikingly, a significant number of individuals who abuse alcohol also use Cannabis, which has seen increased legalization globally. While cannabis has demonstrated anti-inflammatory properties, its combined use with alcohol and the development of liver disease remain unclear. AIM The aim of this study was to determine the effects of cannabis use on the incidence of liver disease in individuals who abuse alcohol. METHODS We analysed the 2014 Healthcare Cost and Utilization Project-Nationwide Inpatient Sample (NIS) discharge records of patients 18 years and older, who had a past or current history of abusive alcohol use (n = 319 514). Using the International Classification of Disease, Ninth Edition codes, we studied the four distinct phases of progressive ALD with respect to three cannabis exposure groups: non-cannabis users (90.39%), non-dependent cannabis users (8.26%) and dependent cannabis users (1.36%). We accounted for the complex survey sampling methodology and estimated the adjusted odds ratio (AOR) for developing AS, AH, AC and HCC with respect to cannabis use (SAS 9.4). RESULTS Our study revealed that among alcohol users, individuals who additionally use cannabis (dependent and non-dependent cannabis use) showed significantly lower odds of developing AS, AH, AC and HCC (AOR: 0.55 [0.48-0.64], 0.57 [0.53-0.61], 0.45 [0.43-0.48] and 0.62 [0.51-0.76]). Furthermore, dependent users had significantly lower odds than non-dependent users for developing liver disease. CONCLUSIONS Our findings suggest that cannabis use is associated with a reduced incidence of liver disease in alcoholics.
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Affiliation(s)
- Adeyinka C Adejumo
- North Shore Medical Center, Salem, MA, USA.,Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Tokunbo O Ajayi
- Johns Hopkins Medicine, Howard County General Hospital, Columbia, MD, USA
| | - Oluwole M Adegbala
- Department of Medicine, Englewood Hospital and Medical Center, Englewood, NJ, USA
| | - Kelechi L Adejumo
- School of Public Health, University of Massachusetts Lowell, Lowell, MA, USA
| | - Samson Alliu
- Department of Medicine, Maimonides Medical Center, Brooklyn, NY, USA
| | - Akintunde M Akinjero
- Department of Medicine, Englewood Hospital and Medical Center, Englewood, NJ, USA
| | | | - Ogooluwa Ojelabi
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Terence N Bukong
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA.,INRS-Institut Armand-Frappier, Institut National de la Recherche Scientifique, Laval, QC, Canada
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19
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Animal models of binge drinking, current challenges to improve face validity. Neurosci Biobehav Rev 2018; 106:112-121. [PMID: 29738795 DOI: 10.1016/j.neubiorev.2018.05.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/29/2018] [Accepted: 05/01/2018] [Indexed: 01/08/2023]
Abstract
Binge drinking (BD), i.e., consuming a large amount of alcohol in a short period of time, is an increasing public health issue. Though no clear definition has been adopted worldwide the speed of drinking seems to be a keystone of this behavior. Developing relevant animal models of BD is a priority for gaining a better characterization of the neurobiological and psychobiological mechanisms underlying this dangerous and harmful behavior. Until recently, preclinical research on BD has been conducted mostly using forced administration of alcohol, but more recent studies used scheduled access to alcohol, to model more voluntary excessive intakes, and to achieve signs of intoxications that mimic the human behavior. The main challenges for future research are discussed regarding the need of good face validity, construct validity and predictive validity of animal models of BD.
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