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Li X, Xu W. A change in social participation affects cognitive function in middle-aged and older Chinese adults: analysis of a Chinese longitudinal study on aging (2011-2018). Front Public Health 2024; 12:1295433. [PMID: 38371232 PMCID: PMC10869472 DOI: 10.3389/fpubh.2024.1295433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 01/12/2024] [Indexed: 02/20/2024] Open
Abstract
Background One of the biggest challenges facing older adults is cognitive decline and social participation has always been considered a protective factor. However, it is not clear whether social participation predicts cognitive function in this population, rather than depressive symptoms, self-reported health, and activities of daily life, with sufficient capacity to detect unique effects. Methods This study included adults aged 45 and above in China (N = 5,258) who participated in a large national older adult health survey and provided data from 2011, 2013, 2015, and 2018. The unique associations between the predictors of social participation and cognitive function over time and context were evaluated in the Latent Growth Model (LGM). Results Among the 5,258 participants in our study, an overall cognitive decline was observed. Social participation predicts two dimensions of cognitive function, with a degree of impact comparable to depressive symptoms, self-reported health, and activities of daily life. Among them, social participation exhibits a noteworthy prognostic impact on episodic memory during the same period. The regression coefficient is approximately 0.1 (p < 0.05) after controlling other mixed variables (depressive symptoms, self-reported health, and activities of daily life). In contrast, social participation is also a significant predictor of mental intactness in the same period, with a regression coefficient of 0.06 (p < 0.05), even if all mixed variables are controlled. Conclusion Over time, the correlation strength of social participation is comparable to other recognized cognitive function prediction indicators, indicating that promoting social participation among middle-aged and older Chinese adults is a meaningful way to improve cognitive function degradation, which has important policy and practical significance.
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Affiliation(s)
- Xuyang Li
- School of Public Health, Wuhan University, Wuhan, China
| | - Wenyan Xu
- Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
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Baenas I, Mora-Maltas B, Etxandi M, Lucas I, Granero R, Fernández-Aranda F, Tovar S, Solé-Morata N, Gómez-Peña M, Moragas L, Del Pino-Gutiérrez A, Tapia J, Diéguez C, Goudriaan AE, Jiménez-Murcia S. Cluster analysis in gambling disorder based on sociodemographic, neuropsychological, and neuroendocrine features regulating energy homeostasis. Compr Psychiatry 2024; 128:152435. [PMID: 37976998 DOI: 10.1016/j.comppsych.2023.152435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/12/2023] [Accepted: 10/26/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND The heterogeneity of gambling disorder (GD) has led to the identification of different subtypes, mostly including phenotypic features, with distinctive implications on the GD severity and treatment outcome. However, clustering analyses based on potential endophenotypic features, such as neuropsychological and neuroendocrine factors, are scarce so far. AIMS This study firstly aimed to identify empirical clusters in individuals with GD based on sociodemographic (i.e., age and sex), neuropsychological (i.e., cognitive flexibility, inhibitory control, decision making, working memory, attention, and set-shifting), and neuroendocrine factors regulating energy homeostasis (i.e., leptin, ghrelin, adiponectin, and liver-expressed antimicrobial peptide 2, LEAP-2). The second objective was to compare the profiles between clusters, considering the variables used for the clustering procedure and other different sociodemographic, clinical, and psychological features. METHODS 297 seeking-treatment adult outpatients with GD (93.6% males, mean age of 39.58 years old) were evaluated through a semi-structured clinical interview, self-reported psychometric assessments, and a protocolized neuropsychological battery. Plasma concentrations of neuroendocrine factors were assessed in peripheral blood after an overnight fast. Agglomerative hierarchical clustering was applied using sociodemographic, neuropsychological, and neuroendocrine variables as indicators for the grouping procedure. Comparisons between the empirical groups were performed using Chi-square tests (χ2) for categorical variables, and analysis of variance (ANOVA) for quantitative measures. RESULTS Three-mutually-exclusive groups were obtained, being neuropsychological features those with the greatest weight in differentiating groups. The largest cluster (Cluster 1, 65.3%) was composed by younger males with strategic and online gambling preferences, scoring higher on self-reported impulsivity traits, but with a lower cognitive impairment. Cluster 2 (18.2%) and 3 (16.5%) were characterized by a significantly higher proportion of females and older patients with non-strategic gambling preferences and a worse neuropsychological performance. Particularly, Cluster 3 had the poorest neuropsychological performance, especially in cognitive flexibility, while Cluster 2 reported the poorest inhibitory control. This latter cluster was also distinguished by a poorer self-reported emotion regulation, the highest prevalence of food addiction, as well as a metabolic profile characterized by the highest mean concentrations of leptin, adiponectin, and LEAP-2. CONCLUSIONS To the best of our knowledge, this is the first study to identify well-differentiated GD clusters using neuropsychological and neuroendocrine features. Our findings reinforce the heterogeneous nature of the disorder and emphasize a role of potential endophenotypic features in GD subtyping. This more comprehensive characterization of GD profiles could contribute to optimize therapeutic interventions based on a medicine of precision.
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Affiliation(s)
- Isabel Baenas
- Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; Ciber Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain; Doctoral Program in Medicine and Translational Research, University of Barcelona (UB), Barcelona, Spain
| | - Bernat Mora-Maltas
- Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain; Ciber Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain; Doctoral Program in Medicine and Translational Research, University of Barcelona (UB), Barcelona, Spain
| | - Mikel Etxandi
- Doctoral Program in Medicine and Translational Research, University of Barcelona (UB), Barcelona, Spain; Department of Psychiatry, Hospital Universitari Germans Trias i Pujol, IGTP Campus Can Ruti, Badalona, Spain
| | - Ignacio Lucas
- Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; Ciber Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain
| | - Roser Granero
- Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; Ciber Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain; Department of Psychobiology and Methodology, Autonomous University of Barcelona, Barcelona, Spain
| | - Fernando Fernández-Aranda
- Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; Ciber Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain; Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Sulay Tovar
- Ciber Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain; Department of Physiology, CIMUS, University of Santiago de Compostela, Instituto de Investigación Sanitaria (IDIS), Santiago de Compostela, Spain
| | - Neus Solé-Morata
- Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain
| | - Mónica Gómez-Peña
- Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Laura Moragas
- Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Amparo Del Pino-Gutiérrez
- Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; Ciber Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain; Department of Public Health, Mental Health and Perinatal Nursing, School of Nursing, University of Barcelona, Barcelona, Spain
| | - Javier Tapia
- Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; Doctoral Program in Medicine and Translational Research, University of Barcelona (UB), Barcelona, Spain; Medical Direction of Ambulatory Processes, South Metropolitan Territorial Management, Bellvitge University Hospital, Barcelona, Spain
| | - Carlos Diéguez
- Ciber Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain; Department of Physiology, CIMUS, University of Santiago de Compostela, Instituto de Investigación Sanitaria (IDIS), Santiago de Compostela, Spain
| | - Anna E Goudriaan
- Arkin Mental Health Care, Jellinek, Amsterdam Institute for Addiction Research, Amsterdam, The Netherlands; Amsterdam UMC, Department of Psychiatry, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Susana Jiménez-Murcia
- Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain; Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain; Ciber Physiopathology of Obesity and Nutrition (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain; Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain.
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Marin MCD, Pedro MOP, Perrotte G, Martins-da-Silva AS, Lassi DLS, Blaas IK, Castaldelli FI, Brisola dos Santos MB, Kortas GT, Campos MW, Torales J, Ventriglio A, Périco CDAM, Negrão AB, Leopoldo K, de Andrade AG, Malbergier A, Castaldelli-Maia JM. Pharmacological Treatment of Alcohol Cravings. Brain Sci 2023; 13:1206. [PMID: 37626562 PMCID: PMC10452441 DOI: 10.3390/brainsci13081206] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
(1) Background: The treatment of substance addiction is challenging and has persisted for decades, with only a few therapeutic options. Although there are some recommendations for specific treatments for Alcohol Use Disorder (AUD), there is no specific medication used to treat alcohol cravings, which could benefit millions of patients that are suffering from alcoholism. Cravings, or the urge to use drugs, refer to the desire to experience the effects of a previously experienced psychoactive substance. (2) Methods: We included original studies of alcohol abuse or dependence extracted from a controlled, blind, pharmacological treatment study which presented measures and outcomes related to alcohol cravings. (3) Results: Specific drugs used for the treatment of alcoholism, such as Naltrexone and Acamprosate, have had the best results in relieving craving symptoms, as well as promoting abstinence. Baclofen and anticonvulsants such as Gabapentin and Topiramate have shown good results in promoting abstinence and the cessation of cravings. (4) Conclusions: Specific drugs used for the treatment of alcoholism to obtain the best results can be considered the gold standard for promoting abstinence and relieving cravings. Anticonvulsants and Baclofen also had good results, with these medications being considered as second-line ones. Varenicline is an option for alcohol dependents who also concomitantly ingest tobacco.
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Affiliation(s)
- Matheus Cheibub David Marin
- Perdizes Institute (IPer), Clinics Hospital of the Medical School (HCFMUSP), University of São Paulo, São Paulo 05021-001, Brazil; (M.C.D.M.); (D.L.S.L.); (I.K.B.); (G.T.K.); (A.B.N.); (A.G.d.A.); (A.M.)
- Hospital Sírio-Libanês, São Paulo 01308-050, Brazil; (M.O.P.P.); (M.B.B.d.S.)
| | - Maria Olívia Pozzolo Pedro
- Hospital Sírio-Libanês, São Paulo 01308-050, Brazil; (M.O.P.P.); (M.B.B.d.S.)
- Department of Psychiatry, Medical School, University of São Paulo, São Paulo 05403-903, Brazil; (A.S.M.-d.-S.); (K.L.)
| | - Giuliana Perrotte
- Department of Neuroscience, Medical School, FMABC University Center, Santo André 09060-870, Brazil; (G.P.); (C.d.A.-M.P.)
| | - Anderson S. Martins-da-Silva
- Department of Psychiatry, Medical School, University of São Paulo, São Paulo 05403-903, Brazil; (A.S.M.-d.-S.); (K.L.)
| | - Dangela L. S. Lassi
- Perdizes Institute (IPer), Clinics Hospital of the Medical School (HCFMUSP), University of São Paulo, São Paulo 05021-001, Brazil; (M.C.D.M.); (D.L.S.L.); (I.K.B.); (G.T.K.); (A.B.N.); (A.G.d.A.); (A.M.)
| | - Israel Kanaan Blaas
- Perdizes Institute (IPer), Clinics Hospital of the Medical School (HCFMUSP), University of São Paulo, São Paulo 05021-001, Brazil; (M.C.D.M.); (D.L.S.L.); (I.K.B.); (G.T.K.); (A.B.N.); (A.G.d.A.); (A.M.)
- Department of Neuroscience, Medical School, FMABC University Center, Santo André 09060-870, Brazil; (G.P.); (C.d.A.-M.P.)
| | | | | | - Guilherme Trevizan Kortas
- Perdizes Institute (IPer), Clinics Hospital of the Medical School (HCFMUSP), University of São Paulo, São Paulo 05021-001, Brazil; (M.C.D.M.); (D.L.S.L.); (I.K.B.); (G.T.K.); (A.B.N.); (A.G.d.A.); (A.M.)
- Hospital Sírio-Libanês, São Paulo 01308-050, Brazil; (M.O.P.P.); (M.B.B.d.S.)
- Department of Psychiatry, Medical School, University of São Paulo, São Paulo 05403-903, Brazil; (A.S.M.-d.-S.); (K.L.)
| | - Marcela Waisman Campos
- Department of Cognitive Neurology, Neuropsychiatry, and Neuropsychology, Fleni, Buenos Aires C1428AQK, Argentina;
| | - Julio Torales
- Department of Medical Psychology, School of Medical Sciences, Universidad Nacional de Asunción, San Lorenzo 111454, Paraguay;
- Regional Institute of Health Research, Universidad Nacional de Caaguazú, Coronel Oviedo 050106, Paraguay
- School of Health Sciences, Universidad Sudamericana, Pedro Juan Caballero 130112, Paraguay
| | - Antonio Ventriglio
- Department of Experimental Medicine, Medical School, University of Foggia, 71100 Foggia, Italy;
| | | | - André B. Negrão
- Perdizes Institute (IPer), Clinics Hospital of the Medical School (HCFMUSP), University of São Paulo, São Paulo 05021-001, Brazil; (M.C.D.M.); (D.L.S.L.); (I.K.B.); (G.T.K.); (A.B.N.); (A.G.d.A.); (A.M.)
| | - Kae Leopoldo
- Department of Psychiatry, Medical School, University of São Paulo, São Paulo 05403-903, Brazil; (A.S.M.-d.-S.); (K.L.)
| | - Arthur Guerra de Andrade
- Perdizes Institute (IPer), Clinics Hospital of the Medical School (HCFMUSP), University of São Paulo, São Paulo 05021-001, Brazil; (M.C.D.M.); (D.L.S.L.); (I.K.B.); (G.T.K.); (A.B.N.); (A.G.d.A.); (A.M.)
- Hospital Sírio-Libanês, São Paulo 01308-050, Brazil; (M.O.P.P.); (M.B.B.d.S.)
- Department of Psychiatry, Medical School, University of São Paulo, São Paulo 05403-903, Brazil; (A.S.M.-d.-S.); (K.L.)
- Department of Neuroscience, Medical School, FMABC University Center, Santo André 09060-870, Brazil; (G.P.); (C.d.A.-M.P.)
| | - André Malbergier
- Perdizes Institute (IPer), Clinics Hospital of the Medical School (HCFMUSP), University of São Paulo, São Paulo 05021-001, Brazil; (M.C.D.M.); (D.L.S.L.); (I.K.B.); (G.T.K.); (A.B.N.); (A.G.d.A.); (A.M.)
- Department of Psychiatry, Medical School, University of São Paulo, São Paulo 05403-903, Brazil; (A.S.M.-d.-S.); (K.L.)
| | - João Maurício Castaldelli-Maia
- Hospital Sírio-Libanês, São Paulo 01308-050, Brazil; (M.O.P.P.); (M.B.B.d.S.)
- Department of Psychiatry, Medical School, University of São Paulo, São Paulo 05403-903, Brazil; (A.S.M.-d.-S.); (K.L.)
- Department of Neuroscience, Medical School, FMABC University Center, Santo André 09060-870, Brazil; (G.P.); (C.d.A.-M.P.)
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Hoffmann S, Gerhardt S, Koopmann A, Bach P, Sommer WH, Kiefer F, Mazza M, Lenz B. Body mass index interacts with sex to predict readmission in in-patients with alcohol use disorder. Addict Biol 2023; 28:e13239. [PMID: 36577723 DOI: 10.1111/adb.13239] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/19/2022] [Accepted: 09/22/2022] [Indexed: 12/23/2022]
Abstract
A previous highly controlled pilot study revealed that body mass index (BMI) predicts outcome of in-patients with alcohol use disorder (AUD) in a sex-specific manner. We here provide translational evidence from a daily clinical routine setting and investigated whether BMI and sex interact to predict 24-month readmission risk in four naturalistic cohorts of a specialized addiction clinic (i.e., all patients admitted to the clinic from 2016 to 2020): (i) in-patients (443 males and 197 females) and (ii) day clinic patients (241 males and 103 females) with a primary diagnosis of AUD; (iii) in-patients (175 males and 98 females) and (iv) day clinic patients (174 males and 64 females) with a primary substance use disorder (SUD) other than alcohol. In the in-patients with AUD, BMI interacted with sex to predict the 24-month readmission risks (p = 0.008; after adjustment for age and liver enzyme activities: p = 0.012); with higher BMI, the risk increases significantly in males, whereas for females, the risk tends to decrease. In the group of overweight in-patients, we found higher readmission rates in males relative to females with an odds ratio of 1.8 (p = 0.038). No such significant effects were found in the other cohorts. This study's findings support previous results, suggesting that the easily accessible BMI may serve as a predictive and sex-sensitive biomarker for outcome in in-patients with AUD. Future studies are necessary to elucidate the underlying aetiopathological mechanisms.
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Affiliation(s)
- Sabine Hoffmann
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.,Department of Biostatistics, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Sarah Gerhardt
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Anne Koopmann
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Patrick Bach
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Wolfgang H Sommer
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.,Department of Psychopharmacology, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.,Bethanian Hospital for Psychiatry, Psychosomatics and Psychotherapy, Greifswald, Germany
| | - Falk Kiefer
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Massimiliano Mazza
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Bernd Lenz
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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Kurt Tunagur EM, Yazici AB, Guzel D, Tunagur MT, Ermis C, Suda MA, Yazici E. Investigating associations between appetite-regulating hormones, aggression and craving in males with cannabis use disorder. Drug Alcohol Depend 2022; 238:109577. [PMID: 35905593 DOI: 10.1016/j.drugalcdep.2022.109577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/23/2022] [Accepted: 07/11/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Aggression and craving are common and important withdrawal symptoms in cannabis use disorder. The present study investigated the association between appetite-regulating hormones, aggression, and craving during cannabis withdrawal syndrome (CWS). METHODS Fifty-six male subjects diagnosed with cannabis withdrawal and 45 healthy males were included in the study. The Substance Craving Scale, the Buss-Perry Aggression Questionnaire, and the State-Trait Anxiety Inventory were implemented at baseline. Blood samples were drawn to measure ghrelin, leptin, adiponectin, and resistin levels in the serum. Then, the Point Subtraction Aggression Paradigm (PSAP) was applied. Bloodwork and psychometric assessment procedures were re-implemented after the PSAP. At the 7-day follow-up, psychometric assessments and hormone measurements were repeated in the CWS group. RESULTS Baseline serum ghrelin and adiponectin levels were lower in the CWS group than controls at baseline. After PSAP, there was a significant increase in ghrelin levels of patients with CWS compared to controls. Patients yielded higher aggression scores, while there was no significant correlation between hormonal changes and PSAP findings. At 7-day follow, ghrelin and resistin levels significantly increased, while serum leptin decreased in patients with CWS. Finally, there was a positive association between craving and resistin levels. CONCLUSIONS Our results present the changes in appetite-regulating hormones. Long-term follow-up studies are needed to shed light on neuroendocrinological aspects of cannabis withdrawal.
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Affiliation(s)
| | | | - Derya Guzel
- Department of Physiology, Sakarya University, 54290 Sakarya, Turkey
| | | | - Cagatay Ermis
- Diyarbakır Children's Hospital, 21000 Diyarbakır, Turkey
| | - Mehmet Akif Suda
- Department of Psychiatry, Sakarya University, 54290 Sakarya, Turkey
| | - Esra Yazici
- Department of Psychiatry, Sakarya University, 54290 Sakarya, Turkey
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Fioravante VC, Godoi AR, Camargo VMDB, Pinheiro PFF, Martinez M, Padovani CR, Martinez FE. Low and high postpubertal ethanol use: damage on adulthood reproduction and offspring. REPRODUCTION AND FERTILITY 2022. [PMCID: PMC9422253 DOI: 10.1530/raf-22-0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphical abstract
Abstract The relationship between adolescent ethanol uses and its impacts throughout life are not conclusive. Thus, we evaluated if the low and high consumption of ethanol at postpuberty interferes with the reproduction and ethanol-naive offspring and if the effects are dose-related. Female and male rats were divided into three groups: low drinker (L), high drinker (H) and control (C). The L and H groups were exposed to ethanol up to 10 % from 65 to 80 days with withdrawal after this period. The ethanol consumed by low drinkers was 1.41 ± 0.21 g/kg/day and by high drinkers 4.59 ± 0.45 g/kg/day. The study was conducted in two phases. The first phase verified the reproductive capacity in adulthood on generations (litter size and sex ratio). Data were collected over 10 years. The second phase analyzed the parent reproductive parameters (body weight, reproductive organ weight, sperm parameters and estrous cycle) and the pup development. We observed a reduced litter size in both drinker groups. Gestational body weight gain and feed consumption were lower in L and H. We observed an alteration in reproductive organs weight in both sexes of H. Females presented a longer estrous cycle duration. Males presented an increase in abnormal sperm, a decrease in sperm count and accelerated transit time. The ethanol-naive offspring development was also impaired. We conclude that low and high postpubertal alcohol use impairs long-term reproductive parameters, even after alcohol withdrawal. There is also impaired ethanol-naive offspring. Besides, the effects are dose-related. Lay summary The effects of alcohol use have been reported in several studies. However, better knowledge about early alcohol use and its impact on reproduction in adulthood, after abstinence and on ethanol-naive offspring could help improve preventive measures and mechanisms of action. One of the methods used was retrospective analysis which allows to evaluate the effects of postpubertal ethanol use on the reproductive capacity of rats over generations. Despite our limitations, we verified that the post-adolescent period acts as a susceptibility window, and lifestyle at this age modulates the long-term reproductive parameters. The early ethanol use impairs reproduction function since sperm parameters and the estrous cycle have been altered. The dose of alcohol also contributes to damage on the drinkers’ reproduction and on the physical development of ethanol-naive offspring. Future studies are necessary to identify the mechanism involved in long-term alcohol use effects, even in withdrawal, as well as ethanol-naive offspring outcomes.
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Affiliation(s)
- Vanessa Caroline Fioravante
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu (IBB), UNESP – Univ Estadual Paulista, São Paulo, Brazil
| | - Alana Rezende Godoi
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu (IBB), UNESP – Univ Estadual Paulista, São Paulo, Brazil
| | - Victória Mokarzel de Barros Camargo
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu (IBB), UNESP – Univ Estadual Paulista, São Paulo, Brazil
| | - Patricia Fernanda Felipe Pinheiro
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu (IBB), UNESP – Univ Estadual Paulista, São Paulo, Brazil
| | - Marcelo Martinez
- Department of Morphology and Pathology, Univ Federal de São Carlos (UFSCar), São Carlos, Brazil
| | - Carlos Roberto Padovani
- Department of Biostatistics, Institute of Biosciences of Botucatu (IBB), UNESP – Univ Estadual Paulista, São Paulo, Brazil
| | - Francisco Eduardo Martinez
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu (IBB), UNESP – Univ Estadual Paulista, São Paulo, Brazil
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Browning BD, Schwandt ML, Farokhnia M, Deschaine SL, Hodgkinson CA, Leggio L. Leptin Gene and Leptin Receptor Gene Polymorphisms in Alcohol Use Disorder: Findings Related to Psychopathology. Front Psychiatry 2021; 12:723059. [PMID: 34421692 PMCID: PMC8377199 DOI: 10.3389/fpsyt.2021.723059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 07/12/2021] [Indexed: 11/13/2022] Open
Abstract
Comorbidity between alcohol use disorder (AUD) and other addictive and psychiatric disorders is highly prevalent and disabling; however, the underlying biological correlates are not fully understood. Leptin is a peptide hormone known for its role in energy homeostasis and food intake. Furthermore, leptin plays a key role in the activity of the hypothalamic-pituitary-adrenal (HPA) axis and of several neurotransmitter systems that regulate emotionality and behavior. However, human studies that have investigated circulating leptin levels in relation to AUD and affective disorders, such as anxiety and depression, are conflicting. Genetic-based analyses of the leptin gene (LEP) and leptin receptor gene (LEPR) have the potential of providing more insight into the potential role of the leptin system in AUD and comorbid psychopathology. The aim of the current study was to investigate whether genotypic variations at LEP and LEPR are associated with measures of alcohol use, nicotine use, anxiety, and depression, all of which represent common comorbidities with AUD. Haplotype association analyses were performed, using data from participants enrolled in screening and natural history protocols at the National Institute on Alcohol Abuse and Alcoholism (NIAAA). Analyses were performed separately in European Americans and African Americans due to the variation in haplotype diversity for most genes between these groups. In the European American group, one LEP haplotype (EB2H4) was associated with lower odds of having a current AUD diagnosis, two LEPR haplotypes (EB7H3, EB8H3) were associated with lower cigarette pack years and two LEPR haplotypes (EB7H2, EB8H2) were associated with higher State-Trait Anxiety Inventory (STAI-T) scores. In the African American group, one LEP haplotype (AB2H8) was associated with higher cigarette pack years and one LEP haplotype (AB3H2) was associated with lower Fagerström Test for Nicotine Dependence (FTND) scores. Overall, this study found that variations in the leptin and leptin receptor genes are associated with measures of alcohol use, nicotine use, and anxiety. While this preliminary study adds support for a role of the leptin system in AUD and psychopathologies, additional studies are required to fully understand the underlying mechanisms and potential therapeutic implications of these findings.
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Affiliation(s)
- Brittney D Browning
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, MD, United States
| | - Melanie L Schwandt
- Office of the Clinical Director, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Bethesda, MD, United States
| | - Mehdi Farokhnia
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, MD, United States.,Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Sara L Deschaine
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, MD, United States
| | - Colin A Hodgkinson
- Laboratory of Neurogenetics, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Rockville, MD, United States
| | - Lorenzo Leggio
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, MD, United States.,Medication Development Program, National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Baltimore, MD, United States.,Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, RI, United States.,Division of Addiction Medicine, Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, United States.,Department of Neuroscience, Georgetown University Medical Center, Washington, DC, United States
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Bach P, Koopmann A, Bumb JM, Vollstädt-Klein S, Reinhard I, Rietschel M, Witt SH, Wiedemann K, Kiefer F. Leptin predicts cortical and subcortical gray matter volume recovery in alcohol dependent patients: A longitudinal structural magnetic resonance imaging study. Horm Behav 2020; 124:104749. [PMID: 32387173 DOI: 10.1016/j.yhbeh.2020.104749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 03/24/2020] [Accepted: 03/26/2020] [Indexed: 11/25/2022]
Abstract
The neuroprotective effects of leptin and its role in addictive disorders has been highlighted by several recent studies. However, its potential effects on morphological alterations in alcohol dependence are yet to be investigated. Associations between leptin and the longitudinal courses of gray matter volume (GMV) and cortical thickness (CT) were investigated in N = 62 alcohol-dependent patients that underwent structural magnetic resonance imaging after a mean abstinence of 12 (baseline) and 27 days (follow-up) respectively. Blood samples were collected at baseline to determine leptin levels. A cohort of N = 74 healthy individuals served as a reference sample. At baseline, alcohol-dependent patients compared to healthy controls displayed smaller GMV in the insula, parts of the superior, middle and inferior frontal gyri and hippocampal regions and thinner CT in the insula, parts of the superior and middle frontal cortices, the lateral orbitofrontal cortex and parts of the occipital and lingual cortices that partially recovered during abstinence (pFWE < 0.05). In alcohol-dependent patients, leptin was a significant predictor of GMV and CT recovery in the areas that showed the strongest whole-brain effects, specifically GMV in the right insula (R2 = 0.070, pFDR = 0.040) and left inferior frontal triangular gyrus (R2 = 0.076, pFDR = 0.040), as well as CT in the left insula (R2 = 0.158, pFDR = 0.004) and right superior frontal cortex (R2 = 0.180, pFDR = 0.004). Present results support the role of leptin in predicting GMV and CT recovery during the first month of abstinence in alcohol-dependent patients.
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Affiliation(s)
- Patrick Bach
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Germany; Feuerlein Center on Translational Addiction Medicine (FCTS), University of Heidelberg, Germany.
| | - Anne Koopmann
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Germany; Feuerlein Center on Translational Addiction Medicine (FCTS), University of Heidelberg, Germany
| | - J Malte Bumb
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Germany; Feuerlein Center on Translational Addiction Medicine (FCTS), University of Heidelberg, Germany
| | - Sabine Vollstädt-Klein
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Germany; Feuerlein Center on Translational Addiction Medicine (FCTS), University of Heidelberg, Germany
| | - Iris Reinhard
- Department of Biostatistics, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Germany
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Germany
| | - Stephanie H Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Germany
| | - Klaus Wiedemann
- Department of Psychiatry & Psychotherapy, University Medical Center, Hamburg, Martinistr. 52, 20246 Hamburg, Germany
| | - Falk Kiefer
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Germany; Feuerlein Center on Translational Addiction Medicine (FCTS), University of Heidelberg, Germany
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Bach P, Koopmann A, Kiefer F. The Impact of Appetite-Regulating Neuropeptide Leptin on Alcohol Use, Alcohol Craving and Addictive Behavior: A Systematic Review of Preclinical and Clinical Data. Alcohol Alcohol 2020; 56:149-165. [PMID: 32490525 DOI: 10.1093/alcalc/agaa044] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022] Open
Abstract
AIMS The appetite regulating hormone leptin, which is mainly secreted from adipose tissue, is an important regulator of food intake and modulator of reward-driven behavior. Leptin exerts its biological actions via binding to the leptin receptor, which is expressed in the hypothalamus, but also in the hippocampus, the amygdala and the substantia nigra. In the ventral tegmental area (VTA), leptin attenuates the firing rate of dopaminergic neurons that project to the Nucleus accumbens (NAc), which serves as relay to other brain areas of the "addiction network", such as the prefrontal cortex. This suggests that leptin plays a role in the processing of rewards in the context of substance use disorders such as alcohol use disorder, especially through attenuation of dopaminergic activity in the mesolimbic reward system. This supports the plausibility of leptin's potential effects in alcohol use disorder. METHODS We searched MEDLINE from 1990 to February 2020. All abstracts were screened for relevance and we only included publications reporting original data with a full text available in English language. Studies that did not report leptin-data, reviews or case reports/series were not included. RESULTS We identified a total of N=293 studies of whom a total of N=55 preclinical and clinical studies met the specified criteria. N=40 studies investigated the effects of alcohol on leptin plasma levels, N=9 studies investigated the effects of leptin on alcohol craving and N=6 studies investigated the effects of leptin on relapse and alcohol consumption. CONCLUSIONS In this review of preclinical and clinical data, we assess the role of leptin in alcohol use and the development and maintenance of an alcohol use disorder, alcohol craving and relapse. Integrating the existing preclinical and clinical data on leptin may reveal new and innovative targets for the treatment of substance use disorders in the future.
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Affiliation(s)
- Patrick Bach
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, J5/68159 Mannheim, Germany.,Feuerlein Center on Translational Addiction Medicine (FCTS), University of Heidelberg, J5/68159 Mannheim, Germany
| | - Anne Koopmann
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, J5/68159 Mannheim, Germany.,Feuerlein Center on Translational Addiction Medicine (FCTS), University of Heidelberg, J5/68159 Mannheim, Germany
| | - Falk Kiefer
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, J5/68159 Mannheim, Germany.,Feuerlein Center on Translational Addiction Medicine (FCTS), University of Heidelberg, J5/68159 Mannheim, Germany
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10
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Mehta S, Baruah A, Das S, Avinash P, Chetia D, Gupta D. Leptin levels in alcohol dependent patients and their relationship with withdrawal and craving. Asian J Psychiatr 2020; 51:101967. [PMID: 32114115 DOI: 10.1016/j.ajp.2020.101967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/27/2019] [Accepted: 02/08/2020] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Association between leptin plasma levels and alcohol craving has been seen previously. This study aims to research this correlation in a different population while comparing this correlation with respect to hyper-excitable state of alcohol withdrawal. METHODS 25 patients of alcohol dependence were assessed for withdrawal symptoms and craving for alcohol. Leptin levels were measured on 1st day, @ the end of 1st week, @ the end of 3rd week of stopping alcohol. Withdrawal was assessed using CIWA-A at day 1 and day 7, craving was assessed using PENN's scale of craving at week 1 and week 3. Control group consisted of 15 first degree relatives. RESULTS Leptin levels [t (38) = 2.95, p = 0.005] was significantly higher in alcohol dependent patients. Levels had no significant correlation with alcohol withdrawal scores [Leptin/BMI and CIWA Ar: r = 0.18, p = 0.40 on day 1] but had positive correlation with craving scores [Leptin/BMI and PACS: r = 0.684, p = 0.001]. CONCLUSION This study shows that leptin, known for balancing the energy homeostasis of body, also seem to play a role in pathways of drug dependence and craving. This relation is independent of stress hormone axis.
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Affiliation(s)
- Sumit Mehta
- Department of Psychiatry, Shri Guru Ram Rai Institute of Medical & Health Sciences, Dehradun, Uttrakhand, India.
| | - Aparjita Baruah
- Department of Psychiatry, Lokopriya Gopinath Bordoloi Regional Institute of Mental Health, Tezpur, Assam, India
| | - Sourav Das
- Department of Psychiatry, Lokopriya Gopinath Bordoloi Regional Institute of Mental Health, Tezpur, Assam, India
| | - Priyaranjan Avinash
- Department of Psychiatry, Lokopriya Gopinath Bordoloi Regional Institute of Mental Health, Tezpur, Assam, India
| | - Dhrubajyoti Chetia
- Department of Psychiatry, Lokopriya Gopinath Bordoloi Regional Institute of Mental Health, Tezpur, Assam, India
| | - Dhruv Gupta
- Department of Psychiatry, Shri Guru Ram Rai Institute of Medical & Health Sciences, Dehradun, Uttrakhand, India
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Weinland C, Tanovska P, Kornhuber J, Mühle C, Lenz B. Serum lipids, leptin, and soluble leptin receptor in alcohol dependence: A cross-sectional and longitudinal study. Drug Alcohol Depend 2020; 209:107898. [PMID: 32163828 DOI: 10.1016/j.drugalcdep.2020.107898] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 01/29/2020] [Accepted: 02/03/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Alcohol dependence affects metabolic processes. Further research is needed to apply this knowledge clinically. In this study, possible differences in serum lipids and/or leptin activities between alcohol-dependent in-patients and healthy controls and possible associations with alcohol-related blood parameters and with prospective outcomes in alcohol dependence were assessed sex-specifically. METHOD We measured and compared (median) serum lipids (triglycerides and total, HDL, and LDL cholesterol) and leptin activities (leptin, soluble leptin receptor [ObRe], and free leptin index) in 200 (males 56.5 %) early-abstinent alcohol-dependent in-patients and 240 (males 55.4 %) healthy controls and assessed alcohol-related readmissions during a 24 -month post-inclusion period. RESULTS Male patients showed higher HDL cholesterol (61 versus 48 mg/dl), lower LDL/HDL ratios (2.06 versus 3.04), and lower free leptin index (0.30 versus 0.59) at study inclusion compared to healthy controls. In patients, ObRe levels were higher than in controls and decreased from inclusion to the second study-visit (at median 5 days later; males: 16.7-13.8 versus 11.0 ng/ml; females: 17.0-13.4 versus 12.1 ng/ml). The free leptin index increased between the two time points in females (0.80 versus 1.20). Lipids and leptin activities correlated with carbohydrate-deficient transferrin levels and liver enzyme activities. None of the serum parameters were significantly associated with alcohol-related readmissions. CONCLUSION Our data support that serum lipid levels and leptin activities are involved in alcohol dependence. The parameters appear as possible indirect biomarkers for alcohol dependence.
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Affiliation(s)
- Christian Weinland
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Germany.
| | - Petya Tanovska
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Germany
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Germany
| | - Christiane Mühle
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Germany
| | - Bernd Lenz
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Germany; Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, Heidelberg University, Germany
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12
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Sun LN, Liu XL. Functions of adiponectin signaling in regulating neural plasticity and its application as the therapeutic target to neurological and psychiatric diseases. Rev Neurosci 2020; 30:485-495. [PMID: 30864396 DOI: 10.1515/revneuro-2018-0062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 10/06/2018] [Indexed: 12/15/2022]
Abstract
Convergent lines of evidence indicate the critical roles of adiponectin in regulating neural functions on different levels. Because of the importance in maintaining neural plasticity including adult neurogenesis and synaptic plasticity, adiponectin has the potential to serve as the treatment targets in therapies of neurological and psychiatric disorders. Hence, systematic review is needed to summarize how adiponectin works in the brain, and how the adiponectin pathway is employed as the treatment method needs to be determined. Moreover, the benefits of adiponectin as the regulator for neural plasticity such as synaptic plasticity and neurogenesis have been supported by many literatures. In the current article, we reviewed the functions of adiponectin in different types of neural plasticity. We also demonstrated the potential value of adiponectin as the treatment target for different types of neurodegenerative and psychiatric disorders. Taken together, this review offers a new insight about adiponectin as the ideal target to develop the new treatment methods against neurodegeneration or psychiatric diseases.
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Affiliation(s)
- Li-Na Sun
- School of PE and Sport, Beijing Normal University, Beijing 100875, China
| | - Xiao-Li Liu
- School of PE and Sport, Beijing Normal University, Beijing 100875, China
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13
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al'Absi M, Lemieux A, Hodges JS, Allen S. Circulating orexin changes during withdrawal are associated with nicotine craving and risk for smoking relapse. Addict Biol 2019; 24:743-753. [PMID: 30117237 DOI: 10.1111/adb.12643] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 05/11/2018] [Accepted: 05/17/2018] [Indexed: 01/09/2023]
Abstract
We examined the extent to which orexin measured during smoking and the early phase of abstinence was related to craving, withdrawal, stress hormones, and risk for smoking relapse in men and women. Considering its role in modulating nicotine-related reward, we predicted that a reduction in circulating orexin during withdrawal would be associated with increased craving and risk for smoking relapse. Two hundred and eighty five participants provided biological samples and self-report information to identify predictors of smoking relapse. All participants attended two laboratory sessions, which were before and after a period of required abstinence from smoking. After quitting, participants also attended four weekly sessions to track smoking relapse. Only smokers who relapsed within the follow-up period exhibited reduced orexin levels during the initial withdrawal period; ACTH, but not craving nor cortisol, increased across the abstinence period for successful abstainers but not for relapsers. Sex differences in orexin and craving or withdrawal associations also emerged. Adding sex, HPA hormones, and self-reported measures of craving and withdrawal as potential mediators had minimal effects on the above abstinence and orexin effects. These results provide the first evidence that circulating orexin may be a useful marker of risk for relapse; and sex, adrenal hormones, and self-reported craving and withdrawal were not mediators of this effect. The results point to a promising pathway to investigate objective biological markers for craving and smoking relapse and highlight the complexity of the neurobiology of relapse.
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Affiliation(s)
- Mustafa al'Absi
- Department of Family Medicine and Biobehavioral HealthUniversity of Minnesota Medical School Duluth MN USA
- PsychiatryUniversity of Minnesota, Twin Cities Minneapolis MN USA
| | - Andrine Lemieux
- Department of Family Medicine and Biobehavioral HealthUniversity of Minnesota Medical School Duluth MN USA
| | - James S. Hodges
- Division of BiostatisticsUniversity of Minnesota, Twin Cities Minneapolis MN USA
| | - Sharon Allen
- Department of Family Medicine and Community HealthUniversity of Minnesota, Twin Cities Minneapolis MN USA
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Weinland C, Mühle C, Kornhuber J, Lenz B. Body mass index and craving predict 24-month hospital readmissions of alcohol-dependent in-patients following withdrawal. Prog Neuropsychopharmacol Biol Psychiatry 2019; 90:300-307. [PMID: 30496769 DOI: 10.1016/j.pnpbp.2018.11.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/31/2018] [Accepted: 11/24/2018] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Addictive alcohol drinking, craving, and overeating share common etiopathological mechanisms. We investigated whether body mass index (BMI) and craving predict outcome of alcohol-dependent in-patients. METHOD The prospective study included 101 male and 72 female early-abstinent alcohol-dependent in-patients. Craving was quantified by Obsessive-Compulsive Drinking Scale (OCDS) scores. We documented alcohol-related readmissions over 24 months. RESULTS In males, a higher BMI was associated with alcohol-related hospital readmission (median 26.1 vs. 23.1 kg/m2, P = .007) and correlated with more (ρ = 0.286, P = .004) and earlier readmissions (ρ = -0.256, P = .010). These associations were stronger in the subgroup of active smokers (n = 79; median 25.9 vs. 22.3 kg/m2, P = .005; ρ = 0.350, P = .002; ρ = -0.340, P = .002). BMI did not significantly predict outcome in females. Males with at least one readmission reported higher OCDS scores than those without (OCDS-total, OCDS-obsessive, OCDS-compulsive, P < .040), and the OCDS scores correlated with more readmissions (males: OCDS-total, OCDS-obsessive, OCDS-compulsive, ρ > 0.244, P < .014; females: OCDS-compulsive, ρ = 0.341, P = .003) and fewer days to first readmission (males: OCDS-total, OCDS-compulsive, ρ < -0.195, P < .050; females: OCDS-compulsive, ρ = -0.335, P = .004). The OCDS scores explained 9 to 19% of the relationship between BMI and outcome in males. CONCLUSION BMI and craving are easily accessible outcome predictors of alcohol-related readmission following in-patient withdrawal treatment. They might be used to individualize relapse prevention in the future.
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Affiliation(s)
- Christian Weinland
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Germany.
| | - Christiane Mühle
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Germany
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Germany
| | - Bernd Lenz
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Germany
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15
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Effects of leptin and ghrelin on neural cue-reactivity in alcohol addiction: Two streams merge to one river? Psychoneuroendocrinology 2019; 100:1-9. [PMID: 30268001 DOI: 10.1016/j.psyneuen.2018.09.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 08/31/2018] [Accepted: 09/16/2018] [Indexed: 11/22/2022]
Abstract
Leptin and ghrelin and a "cross-talk" between both hormones were implicated in the pathophysiology of alcohol dependence, both modulating alcohol craving and drug-seeking. To date, the neurobiological mechanisms underlying those effects are still little-known. We thus investigated the effect of leptin and ghrelin on alcohol cue-induced brain response, alcohol craving and relapse risk in alcohol-dependent subjects. Seventy abstinent alcohol dependent individuals underwent a functional magnetic resonance imaging (fMRI) alcohol cue-reactivity task and patients` alcohol craving was assessed. Plasma levels of leptin, total and acylated, active ghrelin were measured prior to the fMRI session. Additionally, relapse data was collected during a three-month follow-up. Associations between hormone levels, mesolimbic cue-reactivity, alcohol craving and relapse risk were tested. Leptin levels showed a significant negative association to alcohol cue-induced brain response in the striatum and alcohol craving. In addition, there was a significant effect of leptin on time to first heavy relapse in which higher leptin levels predicted longer times to first heavy relapse. Moreover, positive associations between acylated ghrelin and increased cue-reactivity in bilateral insulae as well as increased craving for alcohol during the fMRI task were revealed. Leptin and acylated ghrelin show opposing effects on mesolimbic cue-reactivity and alcohol craving. We suspect that the reduced striatal cue-reactivity might be the neurobiological correlate of leptin's effect on relapse-risk. The reported results further support the relevance of appetite regulating hormones in the pathophysiology of addiction and their potential role as future treatment targets.
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Glahn A, Rhein M, Frieling H, Dette F, Bleich S, Hillemacher T, Muschler M. Smoking-induced changes in leptin serum levels and c/EBPalpha-related methylation status of the leptin core promotor during smoking cessation. Psychoneuroendocrinology 2019; 100:106-112. [PMID: 30299257 DOI: 10.1016/j.psyneuen.2018.09.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/14/2018] [Accepted: 09/16/2018] [Indexed: 12/18/2022]
Abstract
Previous studies have provided evidence of an association between serum leptin levels and smoking as well as craving during smoking cessation. As promoter methylation also regulates leptin expression, we investigated the leptin gene promoter region of smokers before and after smoking cessation. Since leptin's core promoter region contains an essential c/EBPalpha transcription binding site, we narrowed our investigation to C-300 (-300 base pairs from the transcription start site) of that binding site. Female smokers showed hypermethylation of C-300 compared to non-smokers. Global methylation status is associated with higher craving and the degree of dependence in female smokers. Serum leptin levels in female smokers were significantly higher than in non-smokers. These findings support previous results and, for the first time, point to a pathophysiological role of c/EBPalpha-related C-300 methylation in tobacco dependence.
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Affiliation(s)
- Alexander Glahn
- Department of Psychiatry, Socialpsychiatry an Psychotherapy, Hanover Medical School, Germany.
| | - Mathias Rhein
- Department of Psychiatry, Socialpsychiatry an Psychotherapy, Hanover Medical School, Germany
| | - Helge Frieling
- Department of Psychiatry, Socialpsychiatry an Psychotherapy, Hanover Medical School, Germany
| | - Franziska Dette
- Department of Psychiatry, Socialpsychiatry an Psychotherapy, Hanover Medical School, Germany
| | - Stefan Bleich
- Department of Psychiatry, Socialpsychiatry an Psychotherapy, Hanover Medical School, Germany
| | - Thomas Hillemacher
- Department of Psychiatry, Socialpsychiatry an Psychotherapy, Hanover Medical School, Germany; Paracelsus University Nuremberg, Department of Psychiatry and Psychotherapy, Germany
| | - Marc Muschler
- Department of Psychiatry, Socialpsychiatry an Psychotherapy, Hanover Medical School, Germany
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17
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Girard M, Malauzat D, Nubukpo P. Serum inflammatory molecules and markers of neuronal damage in alcohol-dependent subjects after withdrawal. World J Biol Psychiatry 2019; 20:76-90. [PMID: 28669319 DOI: 10.1080/15622975.2017.1349338] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Our aim is to describe changes in serum concentration for the pro-inflammatory factors TNF-α, IFN-γ, IL-1β, IL-8, IL-6, IL-10, IL-12 and MCP-1, for the satiety factor leptin and for factors associated with neuronal changes, neuron-specific enolase (NSE) and glial activation S100-beta protein (S100-β), and explore their association with abstinence in alcohol-dependent subjects after withdrawal. METHODS Serum sampling and clinical assessments from 115 alcohol-dependent subjects admitted to a psychiatric hospital for alcohol were repeated during the first 48 h of withdrawal (M0) and 1, 2, 4 and 6 months (M1, M2, M4 and M6) thereafter. Serum factors were determined with Luminex technology or by ELISA. RESULTS The levels of TNF-α, IL-1β, IL-8, IL-6, IL-12, MCP-1, and leptin decreased after withdrawal and remained low until M6, regardless of alcohol consumption. IFN-γ levels remained constant and IL-10 levels changed only slightly. NSE levels were not modified, whereas serum S100-β concentration increased significantly on M1 and then plateaued, regardless of abstinence status at 6 months. CONCLUSIONS Alcohol-dependent subjects present an inflammatory condition that is not dependent on alcohol consumption. An understanding of the changes in concentration of the various proteins considered here would provide insight into the physiology of withdrawal or dependence.
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Affiliation(s)
- Murielle Girard
- a Unité de Recherche et de Neurostimulation , Centre Hospitalier Esquirol , Limoges , France
| | - Dominique Malauzat
- a Unité de Recherche et de Neurostimulation , Centre Hospitalier Esquirol , Limoges , France
| | - Philippe Nubukpo
- a Unité de Recherche et de Neurostimulation , Centre Hospitalier Esquirol , Limoges , France.,b Faculté de Médecine , UMR/INSERM 1094/NET , Limoges , France
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18
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Geisel O, Hellweg R, Wiedemann K, Müller CA. Plasma levels of leptin in patients with pathological gambling, internet gaming disorder and alcohol use disorder. Psychiatry Res 2018; 268:193-197. [PMID: 30041134 DOI: 10.1016/j.psychres.2018.06.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 06/14/2018] [Accepted: 06/16/2018] [Indexed: 01/12/2023]
Abstract
Leptin has been suggested to be involved in the pathophysiology of addictive disorders via modulation of mesolimbic reward pathways. Previous studies in patients with substance use disorders (alcohol, tobacco, cocaine) found positive correlations of leptin blood levels with craving. Here, we investigated leptin blood levels in patients with non-substance related addictive disorders such as pathological gambling (PG) and internet gaming disorder (IGD) in comparison to patients with alcohol use disorder (AUD) and healthy controls. Plasma levels of leptin were measured in male patients with PG (n = 14), male patients with IGD (n = 11), male patients with AUD (n = 39) and male healthy controls (n = 12). Additionally, correlation analyses with blood levels of HPA axis hormones were performed. Leptin plasma levels of patients with PG, IGD or AUD and healthy controls did not differ significantly across groups. In patients with PG, leptin plasma levels were correlated with copeptin, a surrogate for arginine vasopressin. Our findings do not suggest an involvement of leptin in abstinent patients with AUD or in patients with active IGD. In patients with active PG, leptin blood levels were not related to craving for gambling, but leptin might be involved in PG via an interaction with the HPA axis.
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Affiliation(s)
- Olga Geisel
- Department of Psychiatry, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
| | - Rainer Hellweg
- Department of Psychiatry, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Klaus Wiedemann
- Department of Psychiatry, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Christian A Müller
- Department of Psychiatry, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
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Proskynitopoulos PJ, Rhein M, Jäckel E, Manns MP, Frieling H, Bleich S, Thum T, Hillemacher T, Glahn A. Leptin Expression and Gene Methylation Patterns in Alcohol-Dependent Patients with Ethyltoxic Cirrhosis—Normalization After Liver Transplantation and Implications for Future Research. Alcohol Alcohol 2018; 53:511-517. [DOI: 10.1093/alcalc/agy038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 05/12/2018] [Indexed: 11/12/2022] Open
Affiliation(s)
- P J Proskynitopoulos
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hanover Medical School, Hanover, Germany
- Integrated Research and Treatment Center Transplantation (IFB-Tx), Hanover Medical School, Hanover, Germany
| | - M Rhein
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hanover Medical School, Hanover, Germany
- Integrated Research and Treatment Center Transplantation (IFB-Tx), Hanover Medical School, Hanover, Germany
- Laboratory for Molecular Neuroscience, Department of Psychiatry, Social Psychiatry and Psychotherapy, Hanover Medical School, Hanover, Germany
| | - E Jäckel
- Integrated Research and Treatment Center Transplantation (IFB-Tx), Hanover Medical School, Hanover, Germany
- Department of Gastroenterology, Hepatology, and Endocrinology, Hanover Medical School, Hanover, Germany
| | - M P Manns
- Integrated Research and Treatment Center Transplantation (IFB-Tx), Hanover Medical School, Hanover, Germany
- Department of Gastroenterology, Hepatology, and Endocrinology, Hanover Medical School, Hanover, Germany
| | - H Frieling
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hanover Medical School, Hanover, Germany
- Integrated Research and Treatment Center Transplantation (IFB-Tx), Hanover Medical School, Hanover, Germany
- Laboratory for Molecular Neuroscience, Department of Psychiatry, Social Psychiatry and Psychotherapy, Hanover Medical School, Hanover, Germany
| | - S Bleich
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hanover Medical School, Hanover, Germany
- Integrated Research and Treatment Center Transplantation (IFB-Tx), Hanover Medical School, Hanover, Germany
| | - T Thum
- Integrated Research and Treatment Center Transplantation (IFB-Tx), Hanover Medical School, Hanover, Germany
- Institute of Molecular and Translational Therapeutic Strategies, Hanover Medical School, Hanover, Germany
| | - T Hillemacher
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hanover Medical School, Hanover, Germany
- Integrated Research and Treatment Center Transplantation (IFB-Tx), Hanover Medical School, Hanover, Germany
- Department of Psychiatry and Psychotherapy, Paracelsus Medical University Nuremberg, Nuremberg, Germany
| | - A Glahn
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hanover Medical School, Hanover, Germany
- Integrated Research and Treatment Center Transplantation (IFB-Tx), Hanover Medical School, Hanover, Germany
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20
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Abstract
OBJECTIVE Stress reactivity research has traditionally focused on the idea that exaggerated responses to stress may have adverse effects on health. Accumulating evidence suggests that attenuated responses to stress and delayed recovery may also be problematic. METHODS This review focuses on the role of the stress response of the hypothalamic-pituitary-adrenocortical axis, the endogenous opioid system, and the cardiovascular system in hypertension, pain perception, and addictive behaviors. Results from multiple methods of assessment and stress paradigms conducted in our laboratory over the past two decades are integrated with research from other investigators and with existing theories. RESULTS Research indicates that exaggerated biological and physiological responses to stress and attenuated pain perception are associated with hypertension and risk for cardiovascular diseases. This research complements work linking reduced stress responses with enhanced pain sensitivity and discomfort. Multiple studies have also demonstrated that an attenuated stress response is linked to exacerbation of withdrawal symptoms and relapse in nicotine addiction. Evidence indicates important moderators (i.e., sex, personality traits, and early life adversity) and hypothalamic-pituitary-adrenocortical- and endogenous opioid system-related mechanisms in the altered response to stress. I integrate these findings in a conceptual model emphasizing that robust stress responses in the context of addiction and relapse should be considered as a marker of resiliency. CONCLUSIONS A blunted stress response may indicate long-term physiological dysregulation that could usher harmful consequences for cardiovascular disease, pain perception, and addictive disorders. The impact of dysregulation is influenced by multiple individual and situational factors that should be considered in evaluating the clinical significance of stress response dysregulation.
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Affiliation(s)
- Mustafa alʼAbsi
- From the University of Minnesota Medical School, Duluth (al'Absi), Duluth, Minnesota
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22
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Martinotti G, Montemitro C, Baroni G, Andreoli S, Alimonti F, Di Nicola M, Tonioni F, Leggio L, di Giannantonio M, Janiri L. Relationship between craving and plasma leptin concentrations in patients with cocaine addiction. Psychoneuroendocrinology 2017; 85:35-41. [PMID: 28806585 DOI: 10.1016/j.psyneuen.2017.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/02/2017] [Accepted: 08/03/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND There is robust evidence indicating an overlap between neurobiological circuitry and pathways that regulate addictions and those that regulate appetite and food intake. Rodent work suggests a role of the appetitive peptide leptin in cocaine-seeking behaviours. The goal of this study was to investigate the possible relationship between plasma leptin concentrations and cocaine craving and use in patients seeking treatment for cocaine dependence. METHODS Patients (N=43) with a DSM-IV diagnosis of cocaine dependence were studied before starting detoxification (baseline; T0) and then again 14days after (T1; only those patients who abstained from cocaine during the study). Blood samples for plasma leptin concentrations were collected and cocaine craving was assessed using the Brief Cocaine Craving Questionnaire (Brief-CCQ). Food craving was also assessed using a food Visual Analogue Scale (f-VAS). Barratt Impulsiveness Scale (BIS) was used to evaluate impulsivity. RESULTS Plasma leptin concentrations at T0 significantly correlated with baseline Brief-CCQ scores (r=0.34, p<0.05). Furthermore, plasma leptin concentrations at T1 significantly correlated with the baseline amount of cocaine used (r=0.5, p<0.05). There were no significant correlations between plasma leptin concentrations and f-VAS scores either at T0 or T1 (p's>0.05). CONCLUSIONS The present study suggests a potential relationship between plasma leptin concentrations and cocaine craving and use. Future mechanistic studies are needed to determine whether manipulations of leptin signalling may lead to novel pharmacological approaches to treat cocaine addiction.
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Affiliation(s)
- Giovanni Martinotti
- Department of Neuroscience Imaging and Clinical Science, "G. d'Annunzio" University of Chieti, Italy; Department of Pharmacy, Pharmacology and Clinical Science, University of Hertfordshire, Herts, UK
| | - Chiara Montemitro
- Department of Neuroscience Imaging and Clinical Science, "G. d'Annunzio" University of Chieti, Italy.
| | - Gaia Baroni
- Department of Neuroscience Imaging and Clinical Science, "G. d'Annunzio" University of Chieti, Italy
| | - Sara Andreoli
- Department of Psychiatry, Catholic University Medical School, Rome, Italy
| | - Flaminia Alimonti
- Department of Psychiatry, Catholic University Medical School, Rome, Italy
| | - Marco Di Nicola
- Department of Psychiatry, Catholic University Medical School, Rome, Italy
| | - Federico Tonioni
- Department of Psychiatry, Catholic University Medical School, Rome, Italy
| | - Lorenzo Leggio
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism and National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA; Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, RI, USA
| | - Massimo di Giannantonio
- Department of Neuroscience Imaging and Clinical Science, "G. d'Annunzio" University of Chieti, Italy
| | - Luigi Janiri
- Department of Psychiatry, Catholic University Medical School, Rome, Italy
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Umut G, Evren C, Cansiz A, Akkus M, Karamustafalioglu N. Serum NUCB2/nesfatin-1 levels in different stages of alcohol dependence: Is there a relationship with craving? Indian J Psychiatry 2017; 59:94-99. [PMID: 28529367 PMCID: PMC5419020 DOI: 10.4103/psychiatry.indianjpsychiatry_354_16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION In the literature, the relationship between appetite regulating peptides and alcohol craving is on the debate. AIM This study aims to investigate serum level of NUCB2/nesfatin-1, which is discovered as appetite-related neuropeptide, in patients with alcohol dependence who were in craving and abstaining phase and to compare with healthy controls. SETTINGS AND DESIGN Research, Treatment, and Training Center for Alcohol and Substance Dependence, (AMATEM) Bakirkoy Training and Research Hospital for Psychiatry Neurology and Neurosurgery, Istanbul, case-control and prospective study design were used. STATISTICAL ANALYSIS Chi-square, Mann-Whitney U, paired samples, independent samples t- and Pearson correlation tests were used for analysis. MATERIALS AND METHODS Forty-three patients with alcohol dependence who have been admitted for detoxification and thirty healthy controls were included in the study. The blood samples were drawn after the 1st day of admission and postdetoxification treatment in inpatients who reached to abstinence period and from 30 healthy controls. The Penn Alcohol Craving Scale and the Obsessive Compulsive Drinking Scale were applied to detect craving scores. RESULTS Initial serum NUCB2/nesfatin-1 levels in patients were significantly lower than in the healthy control group (P < 0.001). The NUCB2/nesfatin-1 level of initial phase was significantly lower than abstinence phase (P = 0.027). No correlation was found between craving scores and NUCB2/nesfatin-1 level (P > 0.05). CONCLUSION This study is the first that showed significant differences of serum NUCB2/nesfatin-1 level according to different stages of alcohol dependence. Plasma NUCB2/nesfatin-1 levels were lower in highest craving phase and tended to normalize after abstinence. Since we could not find a correlation between craving and NUCB2/nesfatin-1 levels, the increase of NUCB2/nesfatin-1 in abstinence phase might have been resulted from other reasons apart from craving.
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Affiliation(s)
- Gokhan Umut
- Research, Treatment and Training Center for Alcohol and Substance Dependence (AMATEM), Bakirkoy Training and Research Hospital for Psychiatry Neurology and Neurosurgery, Istanbul, Turkey
| | - Cuneyt Evren
- Research, Treatment and Training Center for Alcohol and Substance Dependence (AMATEM), Bakirkoy Training and Research Hospital for Psychiatry Neurology and Neurosurgery, Istanbul, Turkey
| | - Alparslan Cansiz
- Department of Psychiatry, Siverek State Hospital, Sanliurfa, Turkey
| | - Mustafa Akkus
- Department of Psychiatry, Bakirkoy Training and Research Hospital for Psychiatry Neurology and Neurosurgery, Istanbul, Turkey
| | - Nesrin Karamustafalioglu
- Department of Psychiatry, Bakirkoy Training and Research Hospital for Psychiatry Neurology and Neurosurgery, Istanbul, Turkey
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Abstract
Many of the neurocircuits and hormones known to underlie the sensations of hunger and satiety also substantially alter the activity of the dopaminergic reward system. Much interest lies in the ways that hunger, satiety, and reward tie together, as the epidemic of obesity seems tied to the recent development and mass availability of highly palatable foods. In this review, we will first discuss the basic neurocircuitry of the midbrain and basal forebrain reward system. We will elaborate how several important mediators of hunger-the agouti-related protein neurons of the arcuate nucleus, the lateral hypothalamic nucleus, and ghrelin-enhance the sensitivity of the dopaminergic reward system. Then, we will elaborate how mediators of satiety-the nucleus tractus solitarius, pro-opiomelanocortin neurons of the arcuate nucleus, and its peripheral hormonal influences such as leptin-reduce the reward system sensitivity. We hope to provide a template by which future research may identify the ways in which highly rewarding foods bypass this balanced system to produce excessive food consumption.
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Affiliation(s)
- Ryan Michael Cassidy
- Brown Foundation of the Institute of Molecular Medicine for the Prevention of Human Diseases of McGovern Medical School, Neuroscience Program MD Anderson Cancer Center and UTHealth Graduate School of Biological Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
- *Correspondence: Ryan Michael Cassidy,
| | - Qingchun Tong
- Brown Foundation of the Institute of Molecular Medicine for the Prevention of Human Diseases of McGovern Medical School, Neuroscience Program MD Anderson Cancer Center and UTHealth Graduate School of Biological Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
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25
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Zeren U, Sönmez MB, Vardar E. Alkol Bağımlılığı Olan Hastalarda Leptin, Grelin, Prolaktin Düzeylerinin Değerlendirilmesi. ACTA ACUST UNITED AC 2016. [DOI: 10.5455/bcp.20110415053520] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Uğur Zeren
- Karamürsel Devlet Hastanesi, Karamürsel, Kocaeli-Türkiye
| | | | - Erdal Vardar
- Trakya Üniversitesi Tıp Fakültesi Psikiyatri AD, Edirne-Türkiye
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26
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Di Ciaula A, Grattagliano I, Portincasa P. Chronic alcoholics retain dyspeptic symptoms, pan-enteric dysmotility, and autonomic neuropathy before and after abstinence. J Dig Dis 2016; 17:735-746. [PMID: 27684550 DOI: 10.1111/1751-2980.12415] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 09/14/2016] [Accepted: 09/26/2016] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To carry out a comprehensive study on gastrointestinal symptoms, motility and autonomic neuropathy in chronic alcoholics before and one year after abstinence. METHODS Dyspeptic symptoms (questionnaires), fasting and postprandial gallbladder and gastric motility (ultrasonography), oro-cecal transit time (lactulose H2 -breath test), stool form score (indirect marker of colonic transit), and autonomic neuropathy (sweat spot test, R-R ratio) were assessed at baseline in 268 subjects (136 chronic alcoholics and 132 healthy controls). A subgroup of 39 patients was re-evaluated after 12 months of abstinence. RESULTS Chronic alcoholics had increased dyspepsia, delayed gastric emptying and oro-cecal transit time but faster gallbladder emptying, with slightly accelerated colonic transit. Sympathetic, but not parasympathetic, autonomic dysfunction was found. Dyspeptic symptoms and functional alterations of gastric emptying and oro-cecal transit tests were still present after 12-month abstinence, whereas gallbladder motility, stool form score and sympathetic function improved. CONCLUSIONS Chronic alcoholics exhibit combined and interdependent presence of dyspeptic symptoms, impaired motility at different levels of the gastrointestinal tract, with sympathetic dysfunction. Only a few of these abnormalities improve after one year of abstinence from alcohol.
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Affiliation(s)
| | - Ignazio Grattagliano
- Italian College of General Practitioners, Florence, Italy
- Clinica Medica 'A. Murri', Department of Biomedical Sciences and Human Oncology, 'Aldo Moro' University Medical School, Bari, Italy
| | - Piero Portincasa
- Clinica Medica 'A. Murri', Department of Biomedical Sciences and Human Oncology, 'Aldo Moro' University Medical School, Bari, Italy
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27
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Haass-Koffler CL, Giovenco DE, Lee MR, Zywiak WH, de la Monte SM, Kenna GA, Swift RM, Leggio L. Serum Insulin Levels Are Reduced by Intravenous Ghrelin Administration but Do Not Correlate with Alcohol Craving in Alcohol-Dependent Individuals. Int J Neuropsychopharmacol 2016; 19:pyw048. [PMID: 27207912 PMCID: PMC5091823 DOI: 10.1093/ijnp/pyw048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 04/25/2016] [Accepted: 05/03/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Increasing evidence supports a role for appetite-regulating pathways like ghrelin, insulin, and leptin in alcoholism. We previously reported that intravenous (i.v.) exogenous ghrelin increases alcohol craving. We also reported i.v. ghrelin reduces endogenous serum leptin, whose levels, in turn, negatively correlated with alcohol craving. Exogenous ghrelin administration decreases insulin secretion both in vitro and in vivo experiments. This study tested the hypothesis that i.v. ghrelin may also decrease endogenous serum insulin levels in alcoholic individuals. Additionally, we explored possible correlations between serum insulin and alcohol craving, since a correlation between insulin and alcohol craving was previously reported. METHODS This was a double-blind, placebo-controlled human laboratory study ( n =43). Non-treatment-seeking, alcohol-dependent, heavy drinkers were randomized to receive i.v. ghrelin or placebo, followed by an alcohol cue-reactivity procedure. RESULTS There was a main effect for i.v. ghrelin, compared to placebo in reducing serum insulin ( P <.05). There was also a time effect ( P <.001) but not ghrelin x time interaction ( P >.05). We did not find a correlation between the reduction of serum insulin and alcohol craving ( P >.05). The change in serum insulin was consistent with a parallel reduction in serum connective-peptide in the ghrelin group compared with placebo, although this difference did not reach statistical significance ( P =.076). No similar effects were found for other glucose-regulating hormones analyzed i.e. glucagon, glucagon-like peptide-1, and gastric inhibitory peptide ( P s>.05). CONCLUSIONS These findings indicate i.v. ghrelin administration has an effect on reducing serum insulin in alcohol-dependent individuals; however, the reduction of insulin did not correlate with changes in alcohol cue-elicited craving. We speculate that, unlike for leptin, the interactions between ghrelin and insulin relationship are limited at the peripheral level. However, mechanistic studies are needed to investigate this hypothesis.
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28
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You ZB, Wang B, Liu QR, Wu Y, Otvos L, Wise RA. Reciprocal Inhibitory Interactions Between the Reward-Related Effects of Leptin and Cocaine. Neuropsychopharmacology 2016; 41:1024-33. [PMID: 26243270 PMCID: PMC4748427 DOI: 10.1038/npp.2015.230] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 06/18/2015] [Accepted: 07/01/2015] [Indexed: 12/20/2022]
Abstract
Cocaine is habit-forming because of its ability to enhance dopaminergic neurotransmission in the forebrain. In addition to neuronal inputs, forebrain dopamine circuits are modulated by hormonal influences; one of these is leptin, an adipose-derived hormone that attenuates the rewarding effects of food- and hunger-associated brain stimulation reward. Here we report reciprocal inhibition between the reward-related effects of leptin and the reward-related effects of cocaine in rats. First, we report that cocaine and the expectancy of cocaine each depresses plasma leptin levels. Second, we report that exogenous leptin, given systemically or directly into the ventral tegmental area, attenuates the ability of cocaine to elevate dopamine levels in the nucleus accumbens, the ability of cocaine to establish a conditioned place preference, and the ability of cocaine-predictive stimuli to prolong responding in extinction of cocaine-seeking. Thus, whereas leptin represents an endogenous antagonist of the habit-forming and habit-sustaining effects of cocaine, this antagonism is attenuated by cocaine and comes to be attenuated by the expectancy of cocaine.
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Affiliation(s)
- Zhi-Bing You
- Department of Health and Human Services, Behavioral Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
| | - Bin Wang
- Department of Health and Human Services, Behavioral Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
| | - Qing-Rong Liu
- Department of Health and Human Services, Behavioral Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
| | - Yan Wu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Laszlo Otvos
- Department of Biology, Temple University, Philadelphia, PA, USA
| | - Roy A Wise
- Department of Health and Human Services, Behavioral Neuroscience Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
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29
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Haass-Koffler CL, Aoun EG, Swift RM, de la Monte SM, Kenna GA, Leggio L. Leptin levels are reduced by intravenous ghrelin administration and correlated with cue-induced alcohol craving. Transl Psychiatry 2015; 5:e646. [PMID: 26418274 PMCID: PMC5545639 DOI: 10.1038/tp.2015.140] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/08/2015] [Accepted: 06/01/2015] [Indexed: 01/24/2023] Open
Abstract
Increasing evidence supports the role of appetite-regulating pathways, including ghrelin and leptin, in alcoholism. This study tested the hypothesis that intravenous exogenous ghrelin administration acutely decreases endogenous serum leptin levels, and that changes in leptin levels negatively correlate with alcohol craving. This was a double-blind, placebo-controlled human laboratory study. Non-treatment-seeking, alcohol-dependent, heavy drinkers (n=45) were randomized to receive intravenous ghrelin or placebo, followed by a cue-reactivity procedure, during which participants were exposed to neutral (juice) and alcohol trial cues. There was a main effect for intravenous ghrelin administration, compared with placebo, in reducing serum leptin levels (P<0.01). Post hoc analysis showed significant differences in serum leptin levels at the alcohol trial (P<0.05) that persisted at the end of the experiment (P<0.05). By contrast, there were no significant differences in serum leptin levels at the juice trial (P=not significant (NS)). The change of serum leptin level at the alcohol trial correlated with the increase in alcohol urge (P<0.05), whereas urge to drink juice was not correlated with the leptin change at the juice trial (P=NS). These findings provide preliminary evidence of ghrelin-leptin cross-talk in alcoholic individuals and suggest that their relationship may have a role in alcohol craving.
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Affiliation(s)
- C L Haass-Koffler
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism and National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA,Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, RI, USA
| | - E G Aoun
- Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA
| | - R M Swift
- Center for Alcohol and Addiction Studies, Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA,Veterans Affairs Medical Center, Providence, RI, USA
| | - S M de la Monte
- Departments of Pathology, Neurology, and Neurosurgery, Rhode Island Hospital and the Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - G A Kenna
- Center for Alcohol and Addiction Studies, Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA
| | - L Leggio
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism and National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA,Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, RI, USA,Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism and National Institute on Drug Abuse, National Institutes of Health, 10 Center Drive (10CRC/15330) MSC 1108, Room 1-5429, Bethesda, MD 20892-1108, USA. E-mail:
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30
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Lichenstein SD, Jones BL, O'Brien JW, Zezza N, Stiffler S, Holmes B, Hill SY. Familial risk for alcohol dependence and developmental changes in BMI: the moderating influence of addiction and obesity genes. Pharmacogenomics 2015; 15:1311-21. [PMID: 25155933 DOI: 10.2217/pgs.14.86] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM Familial loading for alcohol dependence (AD) and variation in genes reported to be associated with AD or BMI were tested in a longitudinal study. MATERIALS & METHODS Growth curve analyses of BMI data collected at approximately yearly intervals and obesity status (BMI > 30) were examined. RESULTS High-risk males were found to have higher BMI than low-risk males, beginning at age 15 years (2.0 kg/m(2) difference; p = 0.046), persisting through age 19 years (3.3 kg/m(2) difference; p = 0.005). CHRM2 genotypic variance predicted longitudinal BMI and obesity status. Interactions with risk status and sex were also observed for DRD2 and FTO gene variation. CONCLUSION Variation at loci implicated in addiction may be influential in determining susceptibility to increased BMI in childhood and adolescence.
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Affiliation(s)
- Sarah D Lichenstein
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213, USA
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Schneider R, Santos CF, Clarimundo V, Dalmaz C, Elisabetsky E, Gomez R. N-acetylcysteine prevents behavioral and biochemical changes induced by alcohol cessation in rats. Alcohol 2015; 49:259-63. [PMID: 25771148 DOI: 10.1016/j.alcohol.2015.01.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 01/20/2015] [Accepted: 01/23/2015] [Indexed: 02/06/2023]
Abstract
N-acetylcysteine (NAC), a glutamate-modulating agent with antioxidant and anti-inflammatory properties, has been considered as a potential anti-addictive drug. Beneficial effects were reported for cocaine, cannabis, and tobacco addicts, but the effect of NAC in alcoholics or in alcohol animal models is unknown. The aggravation of alcohol withdrawal symptoms, such as anxiety, has been associated with increased levels of serum corticosterone and leptin. Thus, the aim of this study was to assess the effects of NAC on anxiety, as well as corticosterone and leptin serum levels, after cessation of chronic alcohol treatment in rats. Male Wistar rats were treated with 2 g/kg ethanol, twice daily, by gavage for 30 days; control animals received an appropriate dose of glucose to balance caloric intake. Rats were treated for 4 days with NAC (60 and 90 mg/kg, intra-peritoneally [i.p.]) or saline after alcohol cessation. Twenty-four hours after the last treatment, rats were exposed to a 5-min session in the open-field test (OF). Corticosterone and leptin serum levels were determined by ELISA in samples collected within 30 min after the OF. Results showed that rats were hypoactive (decreased rearing, peripheral, and total crossings), and that corticosterone and leptin levels were increased 5 days after alcohol cessation. Four days of NAC prevented the behavioral and biochemical changes brought about by alcohol cessation. We suggest that, in addition to the anti-addictive properties reported for other drugs of abuse, NAC is potentially useful in the management of alcohol withdrawal.
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Hillemacher T, Weinland C, Lenz B, Kraus T, Heberlein A, Glahn A, Muschler MAN, Bleich S, Kornhuber J, Frieling H. DNA methylation of the LEP gene is associated with craving during alcohol withdrawal. Psychoneuroendocrinology 2015; 51:371-7. [PMID: 25462909 DOI: 10.1016/j.psyneuen.2014.10.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 10/08/2014] [Accepted: 10/13/2014] [Indexed: 01/10/2023]
Abstract
Different studies have described evidence for an association between leptin serum levels and craving in alcohol dependent patients. As leptin expression is regulated by DNA methylation we investigated changes of DNA methylation of the LEP gene promoter region in alcohol dependent patients undergoing withdrawal. Results show that low methylation status is associated with increasing serum leptin levels and elevation of craving for alcohol in the referring patients group. These findings point towards a pathophysiological relevance of changes in DNA methylation of the LEP gene promoter region in alcohol dependence.
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Affiliation(s)
- Thomas Hillemacher
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany; Molecular Neurosciences Laboratory, Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany.
| | - Christian Weinland
- Department of Psychiatry and Psychotherapy, University Hospital, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Bernd Lenz
- Department of Psychiatry and Psychotherapy, University Hospital, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Thomas Kraus
- Department of Psychiatry and Psychotherapy, University Hospital, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany; Frankenalb-Klinik Engelthal, Nürnberg, Germany
| | - Annemarie Heberlein
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - Alexander Glahn
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - Marc A N Muschler
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany; Molecular Neurosciences Laboratory, Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - Stefan Bleich
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany; Molecular Neurosciences Laboratory, Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, University Hospital, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Helge Frieling
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany; Molecular Neurosciences Laboratory, Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
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Xu L. Leptin action in the midbrain: From reward to stress. J Chem Neuroanat 2014; 61-62:256-65. [DOI: 10.1016/j.jchemneu.2014.06.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 06/13/2014] [Accepted: 06/25/2014] [Indexed: 12/11/2022]
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Potretzke S, Nakajima M, Cragin T, al'Absi M. Changes in circulating leptin levels during acute stress and associations with craving in abstinent smokers: a preliminary investigation. Psychoneuroendocrinology 2014; 47:232-40. [PMID: 24954303 PMCID: PMC4087053 DOI: 10.1016/j.psyneuen.2014.05.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 05/03/2014] [Accepted: 05/13/2014] [Indexed: 01/08/2023]
Abstract
Recent research suggests a role for the appetite hormone leptin in cigarette smoking. This study examined patterns of change in leptin in response to stress and associations with craving during the initial phase of a quit attempt. Thirty-six smokers (average age±SEM, 33.4±2.4) interested in smoking cessation set a quit day and were required to be abstinent for 24h. After, they completed a laboratory session including public speaking and cognitive challenges, and attended 4 weekly post-cessation assessments. Blood samples and self-report measures were collected throughout the laboratory session. The results indicated that leptin levels significantly increased following exposure to acute stress. We also found positive correlations between leptin and craving for cigarettes. No differences were observed in leptin levels between smokers who maintained abstinence for 4 weeks and those who relapsed during this period. These findings suggest that leptin levels may change in response to stress and that leptin could be a useful marker of craving for smoking.
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Affiliation(s)
| | | | | | - Mustafa al'Absi
- University of Minnesota School of Medicine, 1035 University Drive, Duluth, MN 55812-2487, USA.
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Engel JA, Jerlhag E. Role of appetite-regulating peptides in the pathophysiology of addiction: implications for pharmacotherapy. CNS Drugs 2014; 28:875-86. [PMID: 24958205 PMCID: PMC4181507 DOI: 10.1007/s40263-014-0178-y] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Food intake and appetite are regulated by various circulating hormones including ghrelin and glucagon-like-peptide 1 (GLP-1). Ghrelin, mainly released from the stomach, increases food intake, induces appetite, enhances adiposity as well as releases growth hormone. Hypothalamic "ghrelin receptors" (GHS-R1A) have a critical role in food intake regulation, but GHS-R1A are also expressed in reward related areas. GLP-1 is produced in the intestinal mucosa as well as in the hindbrain in response to nutrient ingestion. This gut-brain hormone reduces food intake as well as regulates glucose homeostasis, foremost via GLP-1 receptors in hypothalamus and brain stem. However, GLP-1 receptors are expressed in areas intimately associated with reward regulation. Given that regulation of food and drug intake share common neurobiological substrates, the possibility that ghrelin and GLP-1 play an important role in reward regulation should be considered. Indeed, this leading article describes that the orexigenic peptide ghrelin activates the cholinergic-dopaminergic reward link, an important part of the reward systems in the brain associated with reinforcement and thereby increases the incentive salience for motivated behaviors via this system. We also review the role of ghrelin signaling for reward induced by alcohol and addictive drugs from a preclinical, clinical and human genetic perspective. In addition, the recent findings showing that GLP-1 controls reward induced by alcohol, amphetamine, cocaine and nicotine in rodents are overviewed herein. Finally, the role of several other appetite regulatory hormones for reward and addiction is briefly discussed. Collectively, these data suggest that ghrelin and GLP-1 receptors may be novel targets for development of pharmacological treatments of alcohol and drug dependence.
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Affiliation(s)
- Jörgen A. Engel
- Department of Pharmacology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, POB 431, 405 30 Gothenburg, Sweden
| | - Elisabet Jerlhag
- Department of Pharmacology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, POB 431, 405 30 Gothenburg, Sweden
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Aguiar-Nemer AS, Toffolo MCF, da Silva CJ, Laranjeira R, Silva-Fonseca VA. Leptin influence in craving and relapse of alcoholics and smokers. J Clin Med Res 2013; 5:164-7. [PMID: 23671541 PMCID: PMC3651066 DOI: 10.4021/jocmr1159w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2012] [Indexed: 12/11/2022] Open
Abstract
Leptin inhibits signaling of dopamine in the nucleus accumbens, suggesting its role in regulating stress and its possible involvement in the neurobiology of reward system. The aim of this study was to review of the literature on the influence of leptin in the craving for alcohol and tobacco and whether there is already evidence that leptin may be a biomarker to indicate risk for craving and relapse. The review used as data bases Medline, LILACS and SciElo in the period between 2000 and 2012. Keywords were leptin, substance use disorders, craving and withdrawal, in Portuguese and English. Only 12 articles were met the inclusion criteria, relating leptin with craving in alcoholics (n = 10) and smokers (n = 2). No studies were found in the LILACS database. Leptin levels increase during abstinence and this may be related to a reduction of dopaminergic action in mesolimbic system, resulting in a greater intensity of craving and maintenance of addictive behavior. Although there are few studies, the most recent results indicate the usefulness of leptin as a marker of risk for relapse among smokers and alcoholics in abstinence.
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Affiliation(s)
- Aline S Aguiar-Nemer
- Departamento de Nutricao, Instituto de Ciencias Biologicas, Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais, Brasil
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Association of V89L SRD5A2 polymorphism with craving and serum leptin levels in male alcohol addicts. Psychopharmacology (Berl) 2012; 224:421-9. [PMID: 22707254 DOI: 10.1007/s00213-012-2770-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 06/01/2012] [Indexed: 10/28/2022]
Abstract
RATIONALE A causal role of sex hormones in the onset and course of alcohol dependence is well established. We recently demonstrated that the genetics of the androgen receptor and aromatase relate to craving in alcohol addicts during withdrawal. This relationship involves the modulation of leptin, which affects the mesolimbic dopamine reward circuit. The steroid 5-α reductase 2 (SRD5A2) converts testosterone to dihydrotestosterone and thereby causes increased androgenic potency. OBJECTIVES In this study, we explored whether functionally relevant genetic polymorphisms in SRD5A2 (V89L, A49T, [TA](n)) are linked to alcohol addiction and craving. METHODS AND RESULTS We investigated 118 male alcohol-addicted inpatients admitted for withdrawal treatment and compared them to 50 healthy age- and body mass index-matched controls. The two groups did not differ in their allelic distributions. Subsequent analyses revealed an association between the V89L genotype and alcohol craving within the patient group (p < 0.05). Leptin accounted for 55 % of this relationship. Compared to VL and VV carriers, LL carriers had reduced serum leptin levels (p < 0.05) and lower levels of craving (p < 0.01). Furthermore, we observed an interaction between the V89L and the TTTAn aromatase polymorphisms (p < 0.05). No effects were found for A49T or (TA)(n). CONCLUSIONS These findings further support a crucial role of sex hormone biosynthetic genes and signaling in alcohol withdrawal. Craving is an accepted risk factor for alcohol relapse. Hence, these results might be helpful in predicting the outcomes of alcohol addicts after detoxification. With SRD5A2 inhibitors already in clinical use worldwide, this study may also guide future preventive and therapeutic strategies.
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Kenna GA, Swift RM, Hillemacher T, Leggio L. The relationship of appetitive, reproductive and posterior pituitary hormones to alcoholism and craving in humans. Neuropsychol Rev 2012; 22:211-28. [PMID: 22772772 PMCID: PMC3432156 DOI: 10.1007/s11065-012-9209-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 06/22/2012] [Indexed: 12/20/2022]
Abstract
A significant challenge for understanding alcoholism lies in discovering why some, but not other individuals, become dependent on alcohol. Genetic, environmental, cultural, developmental, and neurobiological influences are recognized as essential factors underlying a person's risk for becoming alcohol dependent (AD); however, the neurobiological processes that trigger this vulnerability are still poorly understood. Hormones are important in the regulation of many functions and several hormones are strongly associated with alcohol use. While medical consequences are important, the primary focus of this review is on the underlying confluence of appetitive/feeding, reproductive and posterior pituitary hormones associated with distinct phases of alcoholism or assessed by alcohol craving in humans. While these hormones are of diverse origin, the involvement with alcoholism by these hormone systems is unmistakable, and demonstrates the complexity of interactions with alcohol and the difficulty of successfully pursuing effective treatments. Whether alcohol associated changes in the activity of certain hormones are the result of alcohol use or are the result of an underlying predisposition for alcoholism, or a combination of both, is currently of great scientific interest. The evidence we present in this review suggests that appetitive hormones may be markers as they appear involved in alcohol dependence and craving, that reproductive hormones provide an example of the consequences of drinking and are affected by alcohol, and that posterior pituitary hormones have potential for being targets for treatment. A better understanding of the nature of these associations may contribute to diagnosing and more comprehensively treating alcoholism. Pharmacotherapies that take advantage of our new understanding of hormones, their receptors, or their potential relationship to craving may shed light on the treatment of this disorder.
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Affiliation(s)
- George A Kenna
- Center for Alcohol and Addiction Studies, Department of Psychiatry and Human Behavior, Brown University, Providence, RI 02912, USA.
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Leggio L, Ferrulli A, Cardone S, Nesci A, Miceli A, Malandrino N, Capristo E, Canestrelli B, Monteleone P, Kenna GA, Swift RM, Addolorato G. Ghrelin system in alcohol-dependent subjects: role of plasma ghrelin levels in alcohol drinking and craving. Addict Biol 2012; 17:452-64. [PMID: 21392177 DOI: 10.1111/j.1369-1600.2010.00308.x] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Animal studies suggest that the gut-brain peptide ghrelin plays an important role in the neurobiology of alcohol dependence (AD). Human studies show an effect of alcohol on ghrelin levels and a correlation between ghrelin levels and alcohol craving in alcoholics. This investigation consisted of two studies. Study 1 was a 12-week study with alcohol-dependent subjects, where plasma ghrelin determinations were assessed four times (T0-T3) and related to alcohol intake and craving [Penn Alcohol Craving Score (PACS) and Obsessive Compulsive Drinking Scale (OCDS)]. Serum growth hormone levels and assessment of the nutritional/metabolic status were also performed. Study 2 was a pilot case-control study to assess ghrelin gene polymorphisms (Arg51Gln and Leu72Met) in alcohol-dependent individuals. Study 1 showed no significant differences in ghrelin levels in the whole sample, while there was a statistical difference for ghrelin between non-abstinent and abstinent subjects. Baseline ghrelin levels were significantly and positively correlated with the PACS score at T1 and with all craving scores both at T2 and T3 (PACS, OCDS, obsessive and compulsive OCDS subscores). In Study 2, although there was a higher frequency of the Leu72Met ghrelin gene polymorphism in alcohol-dependent individuals, the distribution between healthy controls and alcohol dependent individuals was not statistically significant. This investigation suggests that ghrelin is potentially able to affect alcohol-seeking behaviors, such as alcohol drinking and craving, representing a new potential neuropharmacological target for AD.
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Affiliation(s)
- Lorenzo Leggio
- Institute of Internal Medicine, Catholic University of Rome, Rome, Italy.
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Dammann G, Walter M, Gremaud-Heitz D, Wolfersdorf M, Hartmann S, Wurst FM. Association between leptin levels and doses of clomethiazole during alcohol withdrawal: a pilot study. Eur Addict Res 2012; 18:12-5. [PMID: 22042250 DOI: 10.1159/000331017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 07/15/2011] [Indexed: 11/19/2022]
Abstract
AIMS The issue of leptin as a putative state marker of alcohol use and its role in craving has been raised in the last few years. Recently, a strong GABA-ergic modulation of leptin was postulated. The aim of the pilot study was to examine leptin levels in correlation with the strongly GABA-mimetic active substance clomethiazole. The main hypothesis was that higher doses of the strong GABA-mimetic clomethiazole are positively correlated with higher leptin levels. METHODS Twenty-eight alcohol-dependent patients (3 females, median age 36 years) undergoing alcohol withdrawal were included. In 18 patients with and 10 without clomethiazole, serum leptin was analyzed at day 1 and day 7 of alcohol withdrawal. Both groups did not differ by age, BMI, or alcohol use characteristics. RESULTS In the clomethiazole group, significant correlations were found between leptin levels at day 1 and clomethiazole dose (p = 0.004), clomethiazole and leptin at day 1/BMI (p = 0.009) and leptin at day 1 and clomethiazole/body surface (p = 0.006). Furthermore, patients with higher clomethiazole doses demonstrated significant higher leptin levels at day 1 (p = 0.044) and day 7 (p = 0.046). CONCLUSIONS Our pilot data show a strong association between leptin levels and clomethiazole doses, thus supporting further research.
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Affiliation(s)
- Gerhard Dammann
- Psychiatric Hospital, University of Basel, Basel, Switzerland.
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Lenz B, Müller CP, Stoessel C, Sperling W, Biermann T, Hillemacher T, Bleich S, Kornhuber J. Sex hormone activity in alcohol addiction: integrating organizational and activational effects. Prog Neurobiol 2011; 96:136-63. [PMID: 22115850 DOI: 10.1016/j.pneurobio.2011.11.001] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Revised: 11/03/2011] [Accepted: 11/08/2011] [Indexed: 01/06/2023]
Abstract
There are well-known sex differences in the epidemiology and etiopathology of alcohol dependence. Male gender is a crucial risk factor for the onset of alcohol addiction. A directly modifying role of testosterone in alcohol addiction-related behavior is well established. Sex hormones exert both permanent (organizational) and transient (activational) effects on the human brain. The sensitive period for these effects lasts throughout life. In this article, we present a novel early sex hormone activity model of alcohol addiction. We propose that early exposure to sex hormones triggers structural (organizational) neuroadaptations. These neuroadaptations affect cellular and behavioral responses to adult sex hormones, sensitize the brain's reward system to the reinforcing properties of alcohol and modulate alcohol addictive behavior later in life. This review outlines clinical findings related to the early sex hormone activity model of alcohol addiction (handedness, the second-to-fourth-finger length ratio, and the androgen receptor and aromatase) and includes clinical and preclinical literature regarding the activational effects of sex hormones in alcohol drinking behavior. Furthermore, we discuss the role of the hypothalamic-pituitary-adrenal and -gonadal axes and the opioid system in mediating the relationship between sex hormone activity and alcohol dependence. We conclude that a combination of exposure to sex hormones in utero and during early development contributes to the risk of alcohol addiction later in life. The early sex hormone activity model of alcohol addiction may prove to be a valuable tool in the development of preventive and therapeutic strategies.
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Affiliation(s)
- Bernd Lenz
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-University of Erlangen-Nuremberg, Germany.
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Abstract
OBJECTIVE To review the literature regarding the role of leptin in psychiatric disorders. METHODS A PubMed search was undertaken using the following keywords: leptin, psychosis, affective disorders, alcohol, psychiatry, depression, dementia, and eating disorders. The articles were restricted to the English language. RESULTS The role of leptin in psychiatric populations has been the subject of increasing investigation. Basic science and clinical observations support a role for leptin in mediating cognition and reward processes. The role of leptin in psychiatric illnesses characterized by cognitive deficits has gained increased attention in recent years. Leptin deficiency and resistance have also been associated with eating disorders as well as affective, alcohol dependence, and psychotic disorders. The mechanisms underlining these associations remain to be determined. CONCLUSIONS Clinical research suggests an important role of leptin in psychiatric illnesses. Given the morbidity associated with mental illness, clinical research on the role of leptin and related novel therapeutic modalities is needed.
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Grosshans M, Loeber S, Kiefer F. Implications from addiction research towards the understanding and treatment of obesity. Addict Biol 2011; 16:189-98. [PMID: 21371174 DOI: 10.1111/j.1369-1600.2010.00300.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Recent research indicates similarities between obesity and addictive disorders on both the phenomenological and neurobiological level. In particular, neuroendocrine and imaging studies suggest a close link between the homeostatic regulation of appetite on the on hand, and motivation and reward expectancy on the other. In addition, findings from neuropsychological studies additionally demonstrate alterations of cognitive function in both obesity and addictive disorders that possibly contribute to a lack of control in resisting consumption. In this review, recent findings on overlapping neurobiological and phenomenological pathways are summarized and the impact with regard to new treatment approaches for obesity is discussed.
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Affiliation(s)
- Martin Grosshans
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, University of Heidelberg, Germany
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al'Absi M, Hooker S, Fujiwara K, Kiefer F, von der Goltz C, Cragin T, Wittmers LE. Circulating leptin levels are associated with increased craving to smoke in abstinent smokers. Pharmacol Biochem Behav 2010; 97:509-13. [PMID: 20951159 DOI: 10.1016/j.pbb.2010.10.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 09/22/2010] [Accepted: 10/06/2010] [Indexed: 10/18/2022]
Abstract
The adipocyte hormone leptin regulates satiety and energy expenditure. Recent evidence suggests that leptin is associated with increased craving for alcohol and with shorter length of abstinence during alcohol treatment. This study examined leptin's associations with craving for cigarettes and smoking relapse among smokers interested in cessation. Participants (32 smokers; 14 women) attended a laboratory session 24h following their designated quit day where circulating leptin levels and craving for smoking were assessed. Other measures of withdrawal symptoms, affect, physical symptoms, as well as neuroendocrine and cardiovascular measures were collected before and after performing two stress tasks (public speaking and cognitive tasks). High circulating leptin levels were associated with increased craving, withdrawal symptoms, negative affect, physical symptoms, and reduced positive affect. Circulating leptin levels were not related to cardiovascular and neuroendocrine measures, responses to acute stressors, or to smoking relapse. These results indicate that circulating leptin is a promising biological marker of craving for smoking and warrant further investigation of the links between appetite regulation and nicotine dependence.
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Affiliation(s)
- Mustafa al'Absi
- Duluth Medical Research Institute and Department of Behavioral Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA.
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Orexin and leptin are associated with nicotine craving: a link between smoking, appetite and reward. Psychoneuroendocrinology 2010; 35:570-7. [PMID: 19828259 DOI: 10.1016/j.psyneuen.2009.09.005] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Revised: 09/02/2009] [Accepted: 09/04/2009] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Preclinical data suggest modulating effects of both orexin/hypocretin and leptin on dopaminergic transmission in mesolimbic reward pathways. This indicates a possible role of both peptides in reward function and motivation, and thus in addictive diseases. The aim of this study was to examine the possible association between orexin and leptin, and nicotine craving in smokers in a clinical case-control study under standardized conditions. METHODS We compared orexin and leptin, ACTH and cortisol plasma concentrations (RIA) between tobacco smokers (n=60) during early nicotine withdrawal and healthy controls (n=64). Motivational aspects of nicotine craving were additionally assessed in the smoking participants using the Questionnaire of Smoking Urges (QSU). RESULTS As main results we detected a significant negative correlation between orexin plasma concentration and nicotine craving (r=-0.28; p<.05), and a positive association between craving and leptin plasma concentration (r=0.29; p<.05). CONCLUSIONS Our results show an association between craving for nicotine and plasma concentrations of orexin and leptin suggesting that both peptides interfere with the dopaminergic transmission during nicotine withdrawal in a bidirectional manner and, thus, modulate craving for nicotine.
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Brower KJ, Perron BE. Sleep disturbance as a universal risk factor for relapse in addictions to psychoactive substances. Med Hypotheses 2009; 74:928-33. [PMID: 19910125 DOI: 10.1016/j.mehy.2009.10.020] [Citation(s) in RCA: 149] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Accepted: 10/10/2009] [Indexed: 11/16/2022]
Abstract
Relapse to uncontrolled use of a psychoactive substance is arguably the single most defining characteristic of an addiction. Relapse following addiction treatment is very common with serious consequences to individuals, families, and the public system of care, making predictors of relapse a highly significant area of study. Before the turn of the century, most of the addiction treatment outcome literature focused on psychosocial predictors of relapse. More recently, investigating biological predictors of relapse specifically and treatment outcome broadly has gained momentum. This line of research has linked sleep disturbances to the risk of relapse among persons who are recovering from an alcohol addiction. Given common neurobiological and psychosocial processes in sleep and addictive behaviors, we hypothesize that the link between sleep disturbance and relapse risk observed among alcohol addiction generalizes to all other types of psychoactive substances. This hypothesis has the potential for helping develop more effective and targeted treatment approaches for persons with addiction. As initial support for the hypothesis, this paper reviews evidence on common neurobiological processes among various types of psychoactive substances that suggests sleep is a universal risk factor for relapse. A conceptual framework is also presented to articulate causal mechanisms. The paper concludes with implications for research and practice.
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Affiliation(s)
- Kirk J Brower
- University of Michigan, Department of Psychiatry, SPC 5740, Ann Arbor, MI 48109-2700, USA.
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The modulating effect of the androgen receptor on craving in alcohol withdrawal of men is partially mediated by leptin. THE PHARMACOGENOMICS JOURNAL 2009; 10:226-31. [PMID: 19884906 DOI: 10.1038/tpj.2009.56] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We reported recently that a functional relevant CAG trinucleotide repeat of the androgen receptor influences craving of men in alcohol withdrawal. It is known to modulate serum concentrations of leptin, which affects hypothalamic appetite regulation. Its plasma levels are elevated during chronic alcohol consumption, normalize within periods of abstinence and are associated with craving. The aim of this study was to further elucidate the role of leptin in mediating the effects of the mentioned polymorphism on craving in men undergoing alcohol withdrawal. We included 110 male in-patients who were admitted for detoxification treatment. Each one had an established diagnosis of alcohol dependence according to the DSM-IV. Our results show on the one hand negative associations between the number of CAG repeats and (i) leptin serum levels (P<0.01) and (ii) craving (P<0.05), and on the other hand, a positive association between leptin and craving of man in alcohol withdrawal (P<0.001). The path analysis revealed direct and mediated effects of the number of CAG repeats on alcohol craving, direct effects (r=-0.144) accounting for 60% and indirect, leptin-mediated effects (r=-0.096) accounting for 40% of the total effect. Dysregulation of sexual hormones influences human metabolism and seems to affect leptin homeostasis. This report suggests that the investigated polymorphism mediates its effect on craving of men in alcohol withdrawal mostly through the regulation of leptin. Nevertheless future studies are needed to further explore the functionality of the androgen receptor gene in terms of craving.
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Kiefer F, Grosshans M. Beitrag der Suchtforschung zum Verständnis der Adipositas. DER NERVENARZT 2009; 80:1040-9. [DOI: 10.1007/s00115-009-2743-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Addolorato G, Leggio L, Hillemacher T, Kraus T, Jerlhag E, Bleich S. Hormones and drinking behaviour: new findings on ghrelin, insulin, leptin and volume-regulating hormones. An ESBRA Symposium report. Drug Alcohol Rev 2009; 28:160-5. [PMID: 19320701 DOI: 10.1111/j.1465-3362.2008.00023.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
There is growing evidence for a role of appetite-related peptides and volume-regulating hormones in alcoholism. In particular, recent evidence has suggested that hormones, such as ghrelin, insulin and leptin and volume-regulating hormones, could play a role in alcohol-seeking behaviour. The goal of this review is to discuss the results of recent preclinical and clinical investigations on this topic. The findings indicate that neuroendocrinological mechanisms are potentially involved in the neurobiology of alcohol craving. Accordingly, research on this topic could lead to possible development of new therapeutic approaches in the treatment of patients with alcohol problems.
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Affiliation(s)
- Giovanni Addolorato
- Institute of Internal Medicine, Catholic University of Rome, Largo A. Gemelli 8, Rome, Italy.
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Leggio L. Understanding and Treating Alcohol Craving and Dependence: Recent Pharmacological and Neuroendocrinological Findings. Alcohol Alcohol 2009; 44:341-52. [DOI: 10.1093/alcalc/agp026] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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