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Chronic inflammatory pain reduces fentanyl intake during early acquisition of fentanyl self-administration, but does not change motivation to take fentanyl in male and female rats 慢性炎症性疼痛会减少雄性和雌性大鼠在早期获得芬太尼自我给药过程中的芬太尼摄入量,但不会改变其服用芬太尼的动机。
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-10-02 DOI: 10.1016/j.pbb.2024.173890
Angela E. Barattini , Nicholas W. Gilpin , Amanda R. Pahng
{"title":"Chronic inflammatory pain reduces fentanyl intake during early acquisition of fentanyl self-administration, but does not change motivation to take fentanyl in male and female rats","authors":"Angela E. Barattini ,&nbsp;Nicholas W. Gilpin ,&nbsp;Amanda R. Pahng","doi":"10.1016/j.pbb.2024.173890","DOIUrl":"10.1016/j.pbb.2024.173890","url":null,"abstract":"<div><div>The co-occurrence of chronic pain and opioid misuse has led to numerous preclinical investigations of pain-opioid interactions to examine how pain manipulations alter the reinforcing properties of opioids. However, preclinical investigations of chronic pain effects on opioid drug self-administration have produced inconsistent results. Our previous work demonstrated that established fentanyl self-administration is resistant to change by induction of chronic inflammatory pain (Complete Freund's Adjuvant; CFA) in male and female rats, while other laboratories have shown that CFA increased fentanyl self-administration in male but not female rats when pain induction precedes self-administration, which may be a critical factor in determining the effects of chronic pain on self-administration. The present study was designed similarly to <span><span>Higginbotham et al. (2022)</span></span> to test the effects of CFA on fentanyl self-administration in rats that underwent pain prior to acquisition of fentanyl self-administration. Male and female rats treated with hindpaw CFA or saline were trained to intravenously self-administer (IVSA) fentanyl for 3 weeks under limited access to fentanyl (2 h per day) conditions. After 3 weeks of fentanyl IVSA acquisition, we tested motivation to take fentanyl using progressive ratio testing and dose-response testing. CFA male and female rats self-administered less fentanyl than saline-treated controls during week 1 of acquisition, but not during weeks 2–3 of acquisition. Intra-session analysis of week 1 data demonstrated that chronic inflammatory pain suppressed fentanyl intake towards the end of week 1 and at the end of each operant session. We also report no effects of chronic inflammatory pain on motivation to take fentanyl. We discuss potential methodological explanations for differences between these results and prior reports. Our findings demonstrate that CFA temporarily suppresses fentanyl IVSA in animals without changing motivation to take fentanyl or promoting escalation of opioid use, suggesting that chronic inflammatory pain is unlikely to promote long-term risk of opioid misuse.</div></div>","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173890"},"PeriodicalIF":3.3,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Incentive motivation for palatable food blocked by intra-accumbens melanin-concentrating hormone (MCH) receptor-1 antagonist in female rats 雌性大鼠脑内黑色素集中激素(MCH)受体-1拮抗剂阻断了对美味食物的刺激动机。
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-09-26 DOI: 10.1016/j.pbb.2024.173884
Yonca Cam, Courtney G. Kocum, Ella R. Konrad, Tim A. Schweizer, Tabitha K. Houska, Carlos A. Sardina, Sanya K. Suri, Matthew J. Will
{"title":"Incentive motivation for palatable food blocked by intra-accumbens melanin-concentrating hormone (MCH) receptor-1 antagonist in female rats","authors":"Yonca Cam,&nbsp;Courtney G. Kocum,&nbsp;Ella R. Konrad,&nbsp;Tim A. Schweizer,&nbsp;Tabitha K. Houska,&nbsp;Carlos A. Sardina,&nbsp;Sanya K. Suri,&nbsp;Matthew J. Will","doi":"10.1016/j.pbb.2024.173884","DOIUrl":"10.1016/j.pbb.2024.173884","url":null,"abstract":"<div><div>Melanin-concentrating hormone (MCH) activity in the nucleus accumbens (Acb) has been shown to influence feeding behavior, yet this has not been characterized in terms of homeostatic vs. hedonic feeding processes. Hedonic feeding, driven by palatability rather than energy deficit, can be modeled through intra-Acb administration of the selective μ-opioid receptor agonist <span>d</span>-Ala2, NMe-Phe4, Glyol5-enkephalin (DAMGO), which preferentially increases consumption and incentive motivation to obtain preferred palatable food. Pharmacological activation of MCH 1 receptors (MCHR1) within Acb has been shown to promote general feeding of chow in males, but not females. However, the effects of MCH on the incentive motivation to obtain preferred palatable food have not been explored. Here, we investigated the role of MCHR1 within the Acb in DAMGO-induced incentive motivation to obtain a sucrose pellet reward. Female Sprague Dawley rats were trained and tested for operant responding under a progressive ratio (PR) breakpoint in response to concurrent intra-Acb administration of DAMGO (0 μg and 0.025 μg/.5 μl/side) immediately following intra-Acb administration of the MCHR1 antagonist (N-(3-{1-[4-(3,4-difluoro-phenoxy)-benzyl]-piperdin-4-yl}-4-methyl-phenyl)-isobutyramide (SNAP-94847; 0 μg, 1.5 μg, and 15 μg/.5 μl/side), in a counterbalanced fashion. As expected, DAMGO significantly increased PR breakpoint and overall active lever presses. SNAP-94847 did not influence PR breakpoint by itself, compared to vehicle; however, both 1.5 and 15 μg doses of SNAP-94847 significantly blocked the increased PR breakpoint produced by intra-Acb DAMGO. The results of the study demonstrate that Acb MCHR1 may play a specific role in the hedonically-driven motivation for palatable food in females.</div></div>","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173884"},"PeriodicalIF":3.3,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142351684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Orally administered Cannabigerol (CBG) in rats: Cannabimimetic actions, anxiety-like behavior, and inflammation-induced pain 大鼠口服大麻萜醇(CBG):大麻拟效作用、焦虑样行为和炎症引起的疼痛。
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-09-23 DOI: 10.1016/j.pbb.2024.173883
Elise M. Weerts, Bryan W. Jenkins, Robbie Y. Kuang, Alma Hausker, Catherine F. Moore
{"title":"Orally administered Cannabigerol (CBG) in rats: Cannabimimetic actions, anxiety-like behavior, and inflammation-induced pain","authors":"Elise M. Weerts,&nbsp;Bryan W. Jenkins,&nbsp;Robbie Y. Kuang,&nbsp;Alma Hausker,&nbsp;Catherine F. Moore","doi":"10.1016/j.pbb.2024.173883","DOIUrl":"10.1016/j.pbb.2024.173883","url":null,"abstract":"<div><div>Cannabigerol (CBG) is a phytocannabinoid found in cannabis that is promoted for medical use and other health benefits, but current empirical data on the behavioral effects of CBG are lacking. The purpose of this study was to evaluate the effects of a wide dose range of orally administered CBG on outcomes related to its potential cannabimimetic effects (cannabinoid tetrad), as well as effects on anxiety-like behavior, inflammation and related pain hypersensitivity. In a series of experiments, male and female Sprague Dawley rats received oral CBG (per os [p.o.]) or vehicle prior to testing of effects on 1) the cannabinoid tetrad (30–600 mg/kg, p.o.): assessments of locomotor activity, body temperature, antinociception (tail flick test), and catalepsy (bar test); 2) acoustic startle response (ASR) test of anxiety-like behavior (30–300 mg/kg, p.o.); 3) carrageenan-induced inflammation (paw edema), hyperalgesia (Hargreaves test), and allodynia (von Frey test) tests (10–60 mg/kg, p.o.). Positive control groups were administered THC (0–30 mg/kg, p.o.) for the cannabinoid tetrad assay, the benzodiazepine lorazepam (0–3 mg/kg, intraperitoneal [i.p.]) for the ASR test, or the opioid analgesic morphine (0–10 mg/kg, i.p.) for the carrageenan-induced inflammation and pain hypersensitivity tests. CBG did not produce cannabimimetic actions in the tetrad, but increased locomotor activity at the highest doses (300–600 mg/kg). THC produced typical dose-related cannabimimetic effects. CBG did not produce anxiolytic effects in the ASR test, while groups pretreated with lorazepam showed reductions in ASR. Finally, pretreatment with CBG prior to an intraplantar injection of carrageenan did not prevent the induction of an acute inflammatory state (i.e., increased paw edema and associated hyperalgesia and allodynia). In contrast, morphine alleviated hyperalgesia and allodynia induced by intraplantar carrageenan but did not affect the development of paw edema. In sum, these data do not support the use of oral CBG for anxiety or inflammatory pain.</div></div>","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173883"},"PeriodicalIF":3.3,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142351685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cannabidiol attenuates prepulse inhibition disruption by facilitating TRPV1 and 5-HT1A receptor-mediated neurotransmission 大麻二酚通过促进 TRPV1 和 5-HT1A 受体介导的神经传递来减轻前脉冲抑制干扰
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-09-19 DOI: 10.1016/j.pbb.2024.173879
João F.C. Pedrazzi , Danyelle Silva-Amaral , Ana C. Issy , Felipe V. Gomes , José A. Crippa , Francisco S. Guimarães , Elaine Del Bel
{"title":"Cannabidiol attenuates prepulse inhibition disruption by facilitating TRPV1 and 5-HT1A receptor-mediated neurotransmission","authors":"João F.C. Pedrazzi ,&nbsp;Danyelle Silva-Amaral ,&nbsp;Ana C. Issy ,&nbsp;Felipe V. Gomes ,&nbsp;José A. Crippa ,&nbsp;Francisco S. Guimarães ,&nbsp;Elaine Del Bel","doi":"10.1016/j.pbb.2024.173879","DOIUrl":"10.1016/j.pbb.2024.173879","url":null,"abstract":"","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173879"},"PeriodicalIF":3.3,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interaction of age and sex as factors in understanding the anxiolytic effects of alcohol: Unasked questions limiting the understanding of a critical health issue 年龄和性别的相互作用是理解酒精抗焦虑作用的因素:未提出的问题限制了对一个重要健康问题的理解
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-09-14 DOI: 10.1016/j.pbb.2024.173881
Douglas B. Matthews, Emily Kerr
{"title":"Interaction of age and sex as factors in understanding the anxiolytic effects of alcohol: Unasked questions limiting the understanding of a critical health issue","authors":"Douglas B. Matthews,&nbsp;Emily Kerr","doi":"10.1016/j.pbb.2024.173881","DOIUrl":"10.1016/j.pbb.2024.173881","url":null,"abstract":"<div><p>Understanding the reasons why people consume alcohol is a critical health issue. Alcohol produces a variety of effects, including a reduction in stress or negative emotional states termed an anxiolytic effect. The anxiolytic effect of alcohol is an often-reported reason for why people begin consuming the drug. However, several factors concerning the stress-reducing effect of alcohol need to be investigated. For example, research has demonstrated that both age and sex are factors that impact alcohol's anxiolytic effect producing differential outcomes in aged female rats compared to aged male rats. In light of these findings, the current commentary highlights critical questions in need of research with the goal of better understanding how age and sex interact to influence the anxiolytic effect of alcohol. For example, the central nucleus of the amygdala has been identified as a critical brain region mediating the anxiolytic effect of drugs, but additional research is needed to understand how aging alters the neurological functioning of the central nucleus of the amygdala in both females and males. Furthermore, specific receptor isoforms, such as GABA<sub>A</sub> receptor α2, have been shown to be critical for anxiolysis and understanding how aging and sex alter receptor isoform expression by brain region is needed. Finally, age and sex interact to alter allopregnanolone levels in brain and differential neurosteroid levels may mediate alcohol's unique anxiolytic effect in aged female rats compared to aged male rats. Given the increasing age of the population in most countries and the increasing alcohol consumption levels in females compared to males, investigating the interaction of sex and age on alcohol's anxiolytic effect has great promise to discover critical answers to what are currently unasked questions.</p></div>","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173881"},"PeriodicalIF":3.3,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anxiety and the brain: Neuropeptides as emerging factors 焦虑与大脑:作为新兴因素的神经肽
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-09-14 DOI: 10.1016/j.pbb.2024.173878
Kiran S. Satao, Gaurav M. Doshi
{"title":"Anxiety and the brain: Neuropeptides as emerging factors","authors":"Kiran S. Satao,&nbsp;Gaurav M. Doshi","doi":"10.1016/j.pbb.2024.173878","DOIUrl":"10.1016/j.pbb.2024.173878","url":null,"abstract":"<div><p>Anxiety disorders are characterized by intense feelings of worry and fear, which can significantly interfere with daily functioning. Current treatment options primarily include selective serotonin reuptake inhibitors, benzodiazepines, non-benzodiazepine anxiolytics, gabapentinoids, and beta-blockers. Neuropeptides have shown an important role in the regulation of complex behaviours, such as psychopathology and anxiety-related reactions. Neuropeptides have a great deal of promise to advance our understanding of and ability to help people with anxiety disorders. This review focuses on the expanding role of neuropeptides in anxiety management, particularly examining the impact of substance P, neuropeptide Y, corticotropin-releasing hormone, arginine-vasopressin, pituitary adenylate cyclase-activating polypeptide, and cholecystokinin. Furthermore, the paper discusses the neuropeptides that are becoming more and more recognized for their impact on anxiety-related reactions and their potential as therapeutic targets.</p></div>","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173878"},"PeriodicalIF":3.3,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fluoxetine attenuates the anxiolytic effects of the probiotic VSL#3 in a stress-vulnerable genetic line of aves in the chick social-separation stress test, a dual screening assay 在小鸡社会分离应激试验(一种双重筛选试验)中,氟西汀可减弱益生菌 VSL#3 对应激易感基因系鸟类的抗焦虑作用
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-09-12 DOI: 10.1016/j.pbb.2024.173880
Stephen W. White , Haylie Callahan , Sequioa J. Smith , Felicia M. Padilla
{"title":"Fluoxetine attenuates the anxiolytic effects of the probiotic VSL#3 in a stress-vulnerable genetic line of aves in the chick social-separation stress test, a dual screening assay","authors":"Stephen W. White ,&nbsp;Haylie Callahan ,&nbsp;Sequioa J. Smith ,&nbsp;Felicia M. Padilla","doi":"10.1016/j.pbb.2024.173880","DOIUrl":"10.1016/j.pbb.2024.173880","url":null,"abstract":"<div><p>Anxiety disorders represent one of the most common and debilitating illnesses worldwide. However, the development of novel therapeutics for anxiety disorders has lagged compared to other mental illnesses. A growing body of research suggests the gut microbiota plays a role in the etiopathology of anxiety disorders and may, therefore, serve as a novel target for their treatment through the use of probiotics. The use of dietary supplements like probiotics is increasing and their interaction with pharmacotherapies is not well understood. Utilizing the chick social-separation stress test, the primary aim of this study was to evaluate the commercially-available multi-strain probiotic found in VSL#3 for potential anxiolytic-like and/or antidepressant-like effects in the stress-vulnerable Black Australorp genetic line. A secondary aim was to evaluate the interaction between probiotics and the SSRI fluoxetine. Animals were treated with either saline, probiotics, fluoxetine, or probiotics + fluoxetine for 8 days prior to exposure to a 90-min isolation stressor that produces both a panic-like (i.e., anxiety-like) state followed by a state of behavioral despair (i.e., depression-like). The 8-day probiotic regimen produced anxiolytic-like effects but did not attenuate behavioral despair. Fluoxetine failed to significantly alter behavior in either of the two phases. Moreover, the combination of fluoxetine with probiotics attenuated the anxiolytic-like effects of probiotics. The fluoxetine + probiotics combination had no effect on behavioral despair. The results of the current study align with other preclinical studies and some clinical trials suggesting probiotics may offer beneficial effects on anxiety. Investigations examining the anxiolytic-like mechanism of probiotics are needed before any conclusions can be made. Additionally, as the use of probiotics becomes more popular, research on the interactions between probiotic-microbiota and psychotropic medications is necessary.</p></div>","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173880"},"PeriodicalIF":3.3,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sleep debt-induced anxiety and addiction to substances of abuse: A narrative review 睡眠债务引发的焦虑和滥用药物成瘾:叙述性综述
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-09-10 DOI: 10.1016/j.pbb.2024.173874
Aline Ostos-Valverde , Andrea Herrera-Solís , Alejandra E. Ruiz-Contreras , Mónica Méndez-Díaz , Oscar E. Prospéro-García
{"title":"Sleep debt-induced anxiety and addiction to substances of abuse: A narrative review","authors":"Aline Ostos-Valverde ,&nbsp;Andrea Herrera-Solís ,&nbsp;Alejandra E. Ruiz-Contreras ,&nbsp;Mónica Méndez-Díaz ,&nbsp;Oscar E. Prospéro-García","doi":"10.1016/j.pbb.2024.173874","DOIUrl":"10.1016/j.pbb.2024.173874","url":null,"abstract":"<div><p>Substance Use Disorder (SUD) has been conceptualized as an outcome of a dysregulated reward system. However, individuals with SUD suffer from anxiety with an intensity depending on the abstinence period length. This review discusses the role of anxiety as a major contributor to the initiation and perpetuation of SUD, and its dependence on an up-regulated defense-antireward system. In addition, it is discussed that sleep debt, and its psychosocial consequences, promote anxiety, contributing to SUD generation and maintenance. Healthy sleep patterns can be disrupted by diverse medical conditions and negative psychosocial interactions, resulting in accumulated sleep debt and anxiety. Within this narrative review, we discuss the interplay between the motivation-reward and defense-antireward systems, framing the progression from recreational drug use to addiction. This interplay is nuanced by sleep debt-induced anxiety and its psychosocial consequences as contributory vulnerability factors in the genesis of addiction.</p></div>","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173874"},"PeriodicalIF":3.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142173518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sex-based differences in neuropsychiatric symptoms are due to estradiol/ERα-dependent transcriptional regulation via the modulation of steroid levels by sirolimus 神经精神症状的性别差异是由于西罗莫司通过调节类固醇水平而产生的雌二醇/ERα依赖性转录调控所致
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-09-06 DOI: 10.1016/j.pbb.2024.173875
Makiko Koike-Kumagai , Manabu Fujimoto , Mari Wataya-Kaneda
{"title":"Sex-based differences in neuropsychiatric symptoms are due to estradiol/ERα-dependent transcriptional regulation via the modulation of steroid levels by sirolimus","authors":"Makiko Koike-Kumagai ,&nbsp;Manabu Fujimoto ,&nbsp;Mari Wataya-Kaneda","doi":"10.1016/j.pbb.2024.173875","DOIUrl":"10.1016/j.pbb.2024.173875","url":null,"abstract":"<div><p>The sex of the patient often affects the prevalence, progression, and severity of many psychiatric disorders. The incidence, progression, and severity of Parkinson's disease and Alzheimer's disease, the most common neurodegenerative diseases, also differ between the sexes. Sex differences in autism spectrum disorder (ASD), attention deficit hyperactivity disorder (ADHD), and anxiety are also observed in tuberous sclerosis complex (TSC). Neuropsychiatric symptoms are one of the most important manifestations of TSC, and the multiple neuropsychiatric symptoms are collectively referred to as TSC-associated neuropsychiatric disorders (TAND). We created TSC model mice (Tsc2 conditional knockout [cKO] mice) that developed epilepsy and TAND. Sex-based differences were observed for hyperactivity and cognitive dysfunctions in Tsc2 cKO mice with TAND, indicating more severe symptoms in female mice than in male mice. TSC is thought to be caused by the hyperactivation of mechanistic target of rapamycin complex 1 (mTORC1), and mTORC1 inhibitors improve almost all TSC symptoms. Treatment with sirolimus, an mTORC1 inhibitor, improved TAND in Tsc2 cKO mice. We aimed to elucidate the mechanism underlying sex-based differences in TAND using Tsc2 cKO mice and sirolimus. We found that estradiol (E2) and estrogen receptor (ER)α are involved in sex differences in neuropsychiatric symptoms, and discovered a novel function of sirolimus. We showed that sirolimus ameliorated TAND by modulating brain steroid levels and regulating E2/ERα-dependent transcriptional activation. This indicates sirolimus may be beneficial for the treatment of TAND as well as diseases caused by sex-based differences and steroid levels.</p></div>","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173875"},"PeriodicalIF":3.3,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142151623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adult and adolescent antipsychotic exposure increases delay discounting and diminishes behavioral flexibility in male C57BL/6 mice 成年和青春期抗精神病药暴露会增加雄性C57BL/6小鼠的延迟折现并降低其行为灵活性。
IF 3.3 3区 心理学
Pharmacology Biochemistry and Behavior Pub Date : 2024-09-04 DOI: 10.1016/j.pbb.2024.173866
Dalisa R. Kendricks, Carleigh Morrow, D. Austin Haste, M. Christopher Newland
{"title":"Adult and adolescent antipsychotic exposure increases delay discounting and diminishes behavioral flexibility in male C57BL/6 mice","authors":"Dalisa R. Kendricks,&nbsp;Carleigh Morrow,&nbsp;D. Austin Haste,&nbsp;M. Christopher Newland","doi":"10.1016/j.pbb.2024.173866","DOIUrl":"10.1016/j.pbb.2024.173866","url":null,"abstract":"<div><p>Second-generation antipsychotics are frequently prescribed to adolescents, but the long-term consequences of their use remain understudied. These medications work via monoamine neurotransmitter systems, especially dopamine and serotonin, which undergo considerable development and pruning during adolescence. Dopamine and serotonin are linked to a wide host of behaviors, including impulsive choice and behavioral plasticity. In a murine model of adolescent antipsychotic use, male C57BL/6 mice were exposed to either 2.5 mg/kg/day risperidone or 5 mg/kg/day olanzapine via drinking water from postnatal days 22–60. To determine whether the adolescent period was uniquely sensitive to antipsychotic exposure, long-term effects on behavior were compared to an equivalently exposed group of adults where mice were exposed to 2.5 mg/kg risperidone from postnatal days 101–138. Motor activity and body weight in adolescent animals were assessed. Thirty days after exposure terminated animal's behavioral flexibility and impulsive choice were assessed using spatial discrimination reversal and delay discounting. Antipsychotic exposure produced a modest change in behavior flexibility during the second reversal. There was a robust and reproducible difference in impulsive choice: exposed animals devalued the delayed alternative reward substantially more than controls. This effect was observed both following adolescent and adult exposure, indicating that an irreversible change in impulsive choice occurs regardless of the age of exposure.</p></div>","PeriodicalId":19893,"journal":{"name":"Pharmacology Biochemistry and Behavior","volume":"245 ","pages":"Article 173866"},"PeriodicalIF":3.3,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142146122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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