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Yuan F, Ren H, Tan W, Wang Y, Luo H. Effect of phosphodiesterase-4 inhibitor rolipram on colonic hypermotility in water avoidance stress rat model. Neurogastroenterol Motil 2022; 34:e14317. [PMID: 35037375 PMCID: PMC9286810 DOI: 10.1111/nmo.14317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 11/01/2021] [Accepted: 12/20/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Phosphodiesterase (PDE) inhibition has been reported to play a role in regulating gut motility, but the evidence is insufficient, and the mechanism remains unknown. The aim of this study was to investigate the possible role of phosphodiesterase-4 (PDE4) inhibitor rolipram in water avoidance stress-induced colonic hypermotility. METHODS A rat model of irritable bowel syndrome (IBS) with diarrhea (IBS-D) was established by water avoidance stress (WAS). Intestinal motility was assessed by fecal pellets expulsion per hour. The cyclic adenosine monophosphate (cAMP) and nitric oxide (NO) level in colon tissue were detected using ELISA assay and the Griess test, respectively. Western blotting was performed to assess the protein level of PDE, PKA/p-CREB, and neuronal nitric oxide synthase (nNOS) in the colon. To determine the role of rolipram in gut motility, the rats of the WAS + Rolipram and Rolipram group were injected with rolipram intraperitoneally. The colonic contractile activity was recorded with a RM6240 multichannel physiological signal system. KEY RESULTS WAS-induced gastrointestinal hypermotility and increased defecation in rats. After repeated stress, protein levels of PDE4 in the colon were promoted while PKA/p-CREB and nNOS were highly decreased. cAMP content in colon tissue did not change significantly. However, NO content decreased after WAS, and rolipram partly enhanced NO in WAS-exposed rats. In addition, intraperitoneal injection of rolipram partly inhibited the colonic motility in vivo. Meanwhile, we observed rolipram inhibited the contraction of colonic smooth muscle strips, and this inhibitory effect was abolished by Nω-Nitro-L-arginine (L-NNA), a nitric oxide synthase (NOS) inhibitor, tetrodotoxin (TTX), a blocker of neuronal voltage-dependent Na+ channels, Rp-Adenosine 3',5'-cyclic monophosphorothioate triethylammonium salt hydrate (Rp-cAMPS), an antagonist of cAMP. CONCLUSIONS AND INFERENCES Rolipram could relieve stress-induced gastrointestinal hypermotility. This effect may be partly through the cAMP-PKA-p-CREB pathway and NO pathway.
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Affiliation(s)
- FangTing Yuan
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - HaiXia Ren
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Wei Tan
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Ying Wang
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina,Key Laboratory of Hubei Province for Digestive System DiseasesRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - HeSheng Luo
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
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2
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McMurphy T, Huang W, Queen NJ, Ali S, Widstrom KJ, Liu X, Xiao R, Siu JJ, Cao L. Implementation of environmental enrichment after middle age promotes healthy aging. Aging (Albany NY) 2019; 10:1698-1721. [PMID: 30036185 PMCID: PMC6075449 DOI: 10.18632/aging.101502] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 07/15/2018] [Indexed: 12/19/2022]
Abstract
With increases in life expectancy, it is vital to understand the dynamics of aging, their interaction with lifestyle factors, and the connections to age-related disease processes. Our work on environmental enrichment (EE), a housing environment boosting mental health, has revealed a novel anticancer and anti-obesity phenotype mediated by a brain-fat axis: the hypothalamic-sympathoneural-adipocyte (HSA) axis in young animals. Here we investigated EE effects on healthspan and lifespan when initiated after middle age. Short-term EE for six weeks activated the HSA axis in 10-month-old mice. Long-term EE for twelve months reduced adiposity, improved glucose tolerance, decreased leptin levels, enhanced motor abilities, and inhibited anxiety. In addition to adipose remodeling, EE decreased age-related liver steatosis, reduced hepatic glucose production, and increased glucose uptake by liver and adipose tissue contributing to the improved glycemic control. The EE-induced liver modulation was associated with a suppression of protein kinase Cε. Moreover, EE down-regulated the expression of inflammatory genes in the brain, adipose, and liver. EE initiated at 18-month of age significantly improved glycemic control and showed a trend of positive impact on mean lifespan. These data suggest that EE induces metabolic and behavioral adaptations that are shared by factors known to increase healthspan and lifespan.
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Affiliation(s)
- Travis McMurphy
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Wei Huang
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Nicholas J Queen
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Seemaab Ali
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Kyle J Widstrom
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Xianglan Liu
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Run Xiao
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Jason J Siu
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Lei Cao
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
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3
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Roudsari NM, Lashgari NA, Momtaz S, Farzaei MH, Marques AM, Abdolghaffari AH. Natural polyphenols for the prevention of irritable bowel syndrome: molecular mechanisms and targets; a comprehensive review. ACTA ACUST UNITED AC 2019; 27:755-780. [PMID: 31273572 DOI: 10.1007/s40199-019-00284-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 06/14/2019] [Indexed: 12/12/2022]
Abstract
Irritable bowel syndrome (IBS) is a well diagnosed disease, thoroughly attributed to series of symptoms criteria that embrace a broad range of abdominal complainers. Such criteria help to diagnosis the disease and can guide controlled clinical trials to seek new therapeutic agents. Accordingly, a verity of mechanisms and pathophysiological conditions including inflammation, oxidative stress, lipid peroxidation and different life styles are involved in IBS. Predictably, diverse therapeutic approaches are available and prescribed by clinicians due to major manifestations (i.e., diarrhea-predominance, constipation-predominance, abdominal pain and visceral hypersensitivity), psychological disturbances, and patient preferences between herbal treatments versus pharmacological therapies, dietary or microbiological approaches. Herein, we gathered the latest scientific data between 1973 and 2019 from databases such as PubMed, Google Scholar, Scopus and Cochrane library on relevant studies concerning beneficial effects of herbal treatments for IBS, in particular polyphenols. This is concluded that polyphenols might be applicable for preventing IBS and improving the IBS symptoms, mainly through suppressing the inflammatory signaling pathways, which nowadays are known as novel platform for the IBS management. Graphical abstract.
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Affiliation(s)
- Nazanin Momeni Roudsari
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Naser-Aldin Lashgari
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Saeideh Momtaz
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran.,Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.,Department of Toxicology and Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran. .,Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - André M Marques
- Oswaldo Cruz Foundation (FIOCRUZ), Institute of Technology in Pharmaceuticals (Farmanguinhos), Rio de Janeiro, RJ, Brazil
| | - Amir Hossein Abdolghaffari
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran. .,Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran. .,Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran. .,Department of Toxicology and Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,Gastrointestinal Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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McMurphy T, Huang W, Liu X, Siu JJ, Queen NJ, Xiao R, Cao L. Hypothalamic gene transfer of BDNF promotes healthy aging in mice. Aging Cell 2019; 18:e12846. [PMID: 30585393 PMCID: PMC6413658 DOI: 10.1111/acel.12846] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 08/15/2018] [Accepted: 09/02/2018] [Indexed: 12/26/2022] Open
Abstract
The aging process and age-related diseases all involve perturbed energy adaption and impaired ability to cope with adversity. Brain-derived neurotrophic factor (BDNF) in the hypothalamus plays important role in regulation of energy balance. Our previous studies show that recombinant adeno-associated virus (AAV)-mediated hypothalamic BDNF gene transfer alleviates obesity, diabetes, and metabolic syndromes in both diet-induced and genetic models. Here we examined the efficacy and safety of a built-in autoregulatory system to control transgene BDNF expression mimicking the body's natural feedback systems in middle-aged mice. Twelve-month-old mice were treated with either autoregulatory BDNF vector or yellow fluorescence protein (YFP) control, maintained on normal diet, and monitored for 28 weeks. BDNF gene transfer prevented the development of aging-associated metabolic declines characterized by: preventing aging-associated weight gain, reducing adiposity, reversing the decline of brown fat activity, increasing adiponectin while reducing leptin and insulin in circulation, improving glucose tolerance, increasing energy expenditure, alleviating hepatic steatosis, and suppressing inflammatory genes in the hypothalamus and adipose tissues. Moreover, BDNF treatment reduced anxiety-like and depression-like behaviors. These safety and efficacy data provide evidence that hypothalamic BDNF is a target for promoting healthy aging.
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Affiliation(s)
- Travis McMurphy
- Department of Cancer Biology and Genetics, College of MedicineThe Ohio State UniversityColumbusOhio
- The Ohio State University Comprehensive Cancer CenterColumbusOhio
| | - Wei Huang
- Department of Cancer Biology and Genetics, College of MedicineThe Ohio State UniversityColumbusOhio
- The Ohio State University Comprehensive Cancer CenterColumbusOhio
| | - Xianglan Liu
- Department of Cancer Biology and Genetics, College of MedicineThe Ohio State UniversityColumbusOhio
- The Ohio State University Comprehensive Cancer CenterColumbusOhio
| | - Jason J. Siu
- Department of Cancer Biology and Genetics, College of MedicineThe Ohio State UniversityColumbusOhio
- The Ohio State University Comprehensive Cancer CenterColumbusOhio
| | - Nicholas J. Queen
- Department of Cancer Biology and Genetics, College of MedicineThe Ohio State UniversityColumbusOhio
- The Ohio State University Comprehensive Cancer CenterColumbusOhio
| | - Run Xiao
- Department of Cancer Biology and Genetics, College of MedicineThe Ohio State UniversityColumbusOhio
- The Ohio State University Comprehensive Cancer CenterColumbusOhio
| | - Lei Cao
- Department of Cancer Biology and Genetics, College of MedicineThe Ohio State UniversityColumbusOhio
- The Ohio State University Comprehensive Cancer CenterColumbusOhio
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Valdivieso DA, Baughan TG, Canavati UM, Rey AM, Trotter CL, Burrell DR, Buonora JE, Ceremuga TE. Effects of pregabalin on neurobehavior in an adult male rat model of PTSD. PLoS One 2018; 13:e0209494. [PMID: 30596711 PMCID: PMC6312257 DOI: 10.1371/journal.pone.0209494] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 12/06/2018] [Indexed: 02/08/2023] Open
Abstract
Posttraumatic stress disorder (PTSD) can be a very debilitating condition. Effective approaches to prevent and treat PTSD are important areas of basic science research. Pregabalin (PGB), a gabapentinoid derivative of γ-aminobutyric acid, possesses the potential to positively affect neurobehavioral changes associated with PTSD. Using a rodent model of PTSD, the aims of this study were to determine the effects of PGB as a possible prevention for the development of PTSD-like symptoms and its use as a possible treatment. A prospective, experimental, between groups design was used in conjunction with a three-day restraint/shock PTSD stress model. Sixty rats were randomly assigned between two groups, non-stressed and stressed (PTSD). Each of the main two groups was then randomly assigned into six experimental groups: control vehicle, control PGB, control naïve, PTSD vehicle, PTSD Pre-PGB (prophylactic), PTSD Post-PGB (non-prophylactic). The neurobehavioral components of PTSD were evaluated using the elevated plus maze (EPM), Morris water maze (MWM), and forced swim test (FST). Pregabalin administered 24 hours before the initial PTSD event or for 10 days following the last PTSD stress event did not statistically improve mean open arm exploration on the EPM, spatial memory, and learning in the MWM or behavioral despair measured by the FST (p > 0.05).
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Affiliation(s)
- Debra A. Valdivieso
- US Army Graduate Program in Anesthesia Nursing, Academy of Health Sciences, AMEDDC&S, Fort Sam Houston, Texas, United States of America
| | - Thomas G. Baughan
- US Army Graduate Program in Anesthesia Nursing, Academy of Health Sciences, AMEDDC&S, Fort Sam Houston, Texas, United States of America
| | - Ursuline M. Canavati
- US Army Graduate Program in Anesthesia Nursing, Academy of Health Sciences, AMEDDC&S, Fort Sam Houston, Texas, United States of America
| | - Allison M. Rey
- US Army Graduate Program in Anesthesia Nursing, Academy of Health Sciences, AMEDDC&S, Fort Sam Houston, Texas, United States of America
| | - Cristal L. Trotter
- US Army Graduate Program in Anesthesia Nursing, Academy of Health Sciences, AMEDDC&S, Fort Sam Houston, Texas, United States of America
| | - Destynni R. Burrell
- US Army Graduate Program in Anesthesia Nursing, Academy of Health Sciences, AMEDDC&S, Fort Sam Houston, Texas, United States of America
| | - John E. Buonora
- US Army Graduate Program in Anesthesia Nursing, Academy of Health Sciences, AMEDDC&S, Fort Sam Houston, Texas, United States of America
| | - Tomás Eduardo Ceremuga
- US Army Graduate Program in Anesthesia Nursing, Academy of Health Sciences, AMEDDC&S, Fort Sam Houston, Texas, United States of America
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Xu Y, Cui SY, Ma Q, Shi J, Yu Y, Li JX, Zheng L, Zhang Y, Si JM, Yu YC. trans-Resveratrol Ameliorates Stress-Induced Irritable Bowel Syndrome-Like Behaviors by Regulation of Brain-Gut Axis. Front Pharmacol 2018; 9:631. [PMID: 29962949 PMCID: PMC6013570 DOI: 10.3389/fphar.2018.00631] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 05/25/2018] [Indexed: 12/12/2022] Open
Abstract
Background: Irritable bowel syndrome (IBS) is a functional disorder characterized by abdominal pain and abnormalities in defecation associated with psychiatric disorders such as depression and anxiety due to the dysfunction of brain-gut axis. This study aims to determine whether trans-Resveratrol affects chronic-acute combined stress (CACS)-induced IBS-like symptoms including depression, anxiety and intestinal dysfunction. Methods: ICR male mice were exposed to the CACS for 3 weeks. trans-Resveratrol were administrated daily (2.5, 5, and 10 mg/kg, i.g.) 30 min before CACS. Behavioral tests were performed to evaluate the treatment effects of trans-Resveratrol on IBS. Hippocampus tissues were collected and processed Golgi staining and immuno-blot analysis. Ileum and colon tissues were collected and processed Hematoxylin and Eosin staining and immuno-blot analysis. Results: Administration with trans-Resveratrol before CACS for 3 weeks significantly reversed CACS-induced depression- and anxiety-like behaviors and intestinal dysfunction in mice, which implied a crucial role of trans-Resveratrol in treatment of IBS-like disorder. Furthermore, trans-Resveratrol improved hippocampal neuronal remodeling, protected ileal and colonic epithelial barrier structure against CACS insults. The further study suggested that trans-Resveratrol normalized phosphodiesterases 4A (PDE4A) expression and CREB-BDNF signaling that were disturbed by CACS. The increased pCREB and BDNF expression in the hippocampus were found, while decreased pCREB and BDNF levels were observed after treatment with trans-Resveratrol. Conclusions: The dual effects of trans-Resveratrol on stress-induced psychiatric and intestinal dysfunction may be related to normalization of PDE4A expression and subsequent pCREB-BDNF signaling in the hippocampus, ileum and colon.
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Affiliation(s)
- Ying Xu
- Department of Gastroenterology, Wenzhou No. 3 Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou, China.,Departments of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, United States
| | - Su-Ying Cui
- Departments of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, United States.,Department of Pharmacology, Peking University, School of Basic Medical Science, Beijing, China
| | - Quan Ma
- Departments of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, United States
| | - Jing Shi
- School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Ying Yu
- Department of Gastroenterology, Wenzhou No. 3 Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou, China
| | - Jian-Xin Li
- Department of Gastroenterology, Wenzhou No. 3 Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou, China
| | - Liang Zheng
- Department of Gastroenterology, Wenzhou No. 3 Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou, China
| | - Yi Zhang
- Departments of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, United States
| | - Jian-Min Si
- Institute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Ying-Cong Yu
- Department of Gastroenterology, Wenzhou No. 3 Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People's Hospital, Wenzhou, China.,Institute of Gastroenterology, Zhejiang University, Hangzhou, China
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7
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Siu JJ, Queen NJ, Liu X, Huang W, McMurphy T, Cao L. Molecular Therapy of Melanocortin-4-Receptor Obesity by an Autoregulatory BDNF Vector. Mol Ther Methods Clin Dev 2017; 7:83-95. [PMID: 29296625 PMCID: PMC5744069 DOI: 10.1016/j.omtm.2017.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 09/26/2017] [Indexed: 12/27/2022]
Abstract
Mutations in the melanocortin-4-receptor (MC4R) comprise the most common monogenic form of severe early-onset obesity, and conventional treatments are either ineffective long-term or contraindicated. Immediately downstream of MC4R-in the pathway for regulating energy balance-is brain-derived neurotrophic factor (BDNF). Our previous studies show that adeno-associated virus (AAV)-mediated hypothalamic BDNF gene transfer alleviates obesity and diabetes in both diet-induced and genetic models. To facilitate clinical translation, we developed a built-in autoregulatory system to control therapeutic gene expression mimicking the body's natural feedback systems. This autoregulatory approach leads to a sustainable plateau of body weight after substantial weight loss is achieved. Here, we examined the efficacy and safety of autoregulatory BDNF gene therapy in Mc4r heterozygous mice, which best resemble MC4R obese patients. Mc4r heterozygous mice were treated with either autoregulatory BDNF vector or YFP control and monitored for 30 weeks. BDNF gene therapy prevented the development of obesity and metabolic syndromes characterized by decreasing body weight and adiposity, suppressing food intake, alleviating hyperleptinemia and hyperinsulinemia, improving glucose and insulin tolerance, and increasing energy expenditure, without adverse cardiovascular function or behavioral disturbances. These safety and efficacy data provide preclinical evidence that BDNF gene therapy is a compelling treatment option for MC4R-deficient obese patients.
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Affiliation(s)
- Jason J. Siu
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- Neuroscience Graduate Program, The Ohio State University, Columbus, OH 43210, USA
- Medical Scientist Training Program, The Ohio State University, Columbus, OH 43210, USA
| | - Nicholas J. Queen
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Xianglan Liu
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Wei Huang
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Travis McMurphy
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Lei Cao
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- Neuroscience Graduate Program, The Ohio State University, Columbus, OH 43210, USA
- Medical Scientist Training Program, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
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8
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Asano T, Tanaka KI, Tada A, Shimamura H, Tanaka R, Maruoka H, Takenaga M, Mizushima T. Aminophylline suppresses stress-induced visceral hypersensitivity and defecation in irritable bowel syndrome. Sci Rep 2017; 7:40214. [PMID: 28054654 PMCID: PMC5214462 DOI: 10.1038/srep40214] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 12/05/2016] [Indexed: 02/08/2023] Open
Abstract
Pharmacological therapy for irritable bowel syndrome (IBS) has not been established. In order to find candidate drugs for IBS with diarrhea (IBS-D), we screened a compound library of drugs clinically used for their ability to prevent stress-induced defecation and visceral hypersensitivity in rats. We selected the bronchodilator aminophylline from this library. Using a specific inhibitor for each subtype of adenosine receptors (ARs) and phosphodiesterases (PDEs), we found that both A2BARs and PDE4 are probably mediated the inhibitory effect of aminophylline on wrap restraint stress (WRS)-induced defecation. Aminophylline suppressed maternal separation- and acetic acid administration-induced visceral hypersensitivity to colorectal distension (CRD), which was mediated by both A2AARs and A2BARs. We propose that aminophylline is a candidate drug for IBS-D because of its efficacy in both of stress-induced defecation and visceral hypersensitivity, as we observed here, and because it is clinically safe.
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Affiliation(s)
- Teita Asano
- Institute of Medical Science, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki 216-8512, Japan
| | - Ken-ichiro Tanaka
- Laboratory of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-2αhinmachi, Nishitokyo-shi, 202-8585, Japan
| | - Arisa Tada
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Hikaru Shimamura
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Rikako Tanaka
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Hiroki Maruoka
- Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Mitsuko Takenaga
- Institute of Medical Science, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki 216-8512, Japan
| | - Tohru Mizushima
- LTT Bio-Pharma Co., Ltd, Shiodome Building 3F, 1-2-20 Kaigan, Minato-ku, Tokyo 105-0022, Japan
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Impact of germline and somatic missense variations on drug binding sites. THE PHARMACOGENOMICS JOURNAL 2016; 17:128-136. [PMID: 26810135 PMCID: PMC5380835 DOI: 10.1038/tpj.2015.97] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 11/02/2015] [Accepted: 11/13/2015] [Indexed: 11/10/2022]
Abstract
Advancements in next-generation sequencing (NGS) technologies are generating a vast amount of data. This exacerbates the current challenge of translating NGS data into actionable clinical interpretations. We have comprehensively combined germline and somatic nonsynonymous single-nucleotide variations (nsSNVs) that affect drug binding sites in order to investigate their prevalence. The integrated data thus generated in conjunction with exome or whole-genome sequencing can be used to identify patients who may not respond to a specific drug because of alterations in drug binding efficacy due to nsSNVs in the target protein's gene. To identify the nsSNVs that may affect drug binding, protein–drug complex structures were retrieved from Protein Data Bank (PDB) followed by identification of amino acids in the protein–drug binding sites using an occluded surface method. Then, the germline and somatic mutations were mapped to these amino acids to identify which of these alter protein–drug binding sites. Using this method we identified 12 993 amino acid–drug binding sites across 253 unique proteins bound to 235 unique drugs. The integration of amino acid–drug binding sites data with both germline and somatic nsSNVs data sets revealed 3133 nsSNVs affecting amino acid–drug binding sites. In addition, a comprehensive drug target discovery was conducted based on protein structure similarity and conservation of amino acid–drug binding sites. Using this method, 81 paralogs were identified that could serve as alternative drug targets. In addition, non-human mammalian proteins bound to drugs were used to identify 142 homologs in humans that can potentially bind to drugs. In the current protein–drug pairs that contain somatic mutations within their binding site, we identified 85 proteins with significant differential gene expression changes associated with specific cancer types. Information on protein–drug binding predicted drug target proteins and prevalence of both somatic and germline nsSNVs that disrupt these binding sites can provide valuable knowledge for personalized medicine treatment. A web portal is available where nsSNVs from individual patient can be checked by scanning against DrugVar to determine whether any of the SNVs affect the binding of any drug in the database.
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10
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Savignac HM, Tramullas M, Kiely B, Dinan TG, Cryan JF. Bifidobacteria modulate cognitive processes in an anxious mouse strain. Behav Brain Res 2015; 287:59-72. [PMID: 25794930 DOI: 10.1016/j.bbr.2015.02.044] [Citation(s) in RCA: 251] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 02/15/2015] [Accepted: 02/20/2015] [Indexed: 12/17/2022]
Abstract
Increasing evidence suggests that a brain-gut-microbiome axis exists, which has the potential to play a major role in modulating behaviour. However, the role of this axis in cognition remains relatively unexplored. Probiotics, which are commensal bacteria offering potential health benefit, have been shown to decrease anxiety, depression and visceral pain-related behaviours. In this study, we investigate the potential of two Bifidobacteria strains to modulate cognitive processes and visceral pain sensitivity. Adult male BALB/c mice were fed daily for 11 weeks with B. longum 1714, B. breve 1205 or vehicle treatment. Starting at week 4, animals were behaviourally assessed in a battery of tests relevant to different aspects of cognition, as well as locomotor activity and visceral pain. In the object recognition test, B. longum 1714-fed mice discriminated between the two objects faster than all other groups and B. breve 1205-fed mice discriminated faster than vehicle animals. In the Barnes maze, B. longum 1714-treated mice made fewer errors than other groups, suggesting a better learning. In the fear conditioning, B. longum 1714-treated group also showed better learning and memory, yet presenting the same extinction learning profile as controls. None of the treatments affected visceral sensitivity. Altogether, these data suggest that B. longum 1714 had a positive impact on cognition and also that the effects of individual Bifidobacteria strains do not generalise across the species. Clinical validation of the effects of probiotics on cognition is now warranted.
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Affiliation(s)
- H M Savignac
- Alimentary Pharmabiotic Centre, University College Cork, Ireland; School of Pharmacy, University College Cork, Ireland.
| | - M Tramullas
- Alimentary Pharmabiotic Centre, University College Cork, Ireland
| | - B Kiely
- Alimentary Health Ltd., Cork, Ireland
| | - T G Dinan
- Alimentary Pharmabiotic Centre, University College Cork, Ireland; Department of Psychiatry, University College Cork, Ireland.
| | - J F Cryan
- Alimentary Pharmabiotic Centre, University College Cork, Ireland; Department of Anatomy and Neurosciences, University College Cork, Ireland.
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Savignac HM, Kiely B, Dinan TG, Cryan JF. Bifidobacteria exert strain-specific effects on stress-related behavior and physiology in BALB/c mice. Neurogastroenterol Motil 2014; 26:1615-27. [PMID: 25251188 DOI: 10.1111/nmo.12427] [Citation(s) in RCA: 273] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 08/17/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Accumulating evidence suggests that commensal bacteria consumption has the potential to have a positive impact on stress-related psychiatric disorders. However, the specific bacteria influencing behaviors related to anxiety and depression remain unclear. To this end, we compared the effects of two different Bifidobacteria on anxiety and depression-like behavior; an antidepressant was also used as a comparator. METHODS Innately anxious BALB/c mice received daily Bifidobacterium longum (B.) 1714, B. breve 1205, the antidepressant escitalopram or vehicle treatment for 6 weeks. Behavior was assessed in stress-induced hyperthermia test, marble burying, elevated plus maze, open field, tail suspension test, and forced swim test. Physiological responses to acute stress were also assessed. KEY RESULTS Both Bifidobacteria and escitalopram reduced anxiety in the marble burying test; however, only B. longum 1714 decreased stress-induced hyperthermia. B. breve 1205 induced lower anxiety in the elevated plus maze whereas B. longum 1714 induced antidepressant-like behavior in the tail suspension test. However, there was no difference in corticosterone levels between groups. CONCLUSIONS & INFERENCES These data show that these two Bifidobacteria strains reduced anxiety in an anxious mouse strain. These results also suggest that each bacterial strain has intrinsic effects and may be beneficially specific for a given disorder. These findings strengthen the role of gut microbiota supplementation as psychobiotic-based strategies for stress-related brain-gut axis disorders, opening new avenues in the field of neurogastroenterology.
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Affiliation(s)
- H M Savignac
- Alimentary Pharmabiotic Centre, University College Cork, Cork, Ireland
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Marks L, Beard E, Cobey D, Moore N, Motyer V, Valentin JP, Ewart L. An evaluation of the non-invasive faecal pellet assessment method as an early drug discovery screen for gastrointestinal liability. J Pharmacol Toxicol Methods 2013; 68:123-36. [DOI: 10.1016/j.vascn.2013.03.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 03/20/2013] [Accepted: 03/21/2013] [Indexed: 12/24/2022]
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Inoue H, Yamada S. Critical factors for process improvement in pharmaceutical research. TQM JOURNAL 2013. [DOI: 10.1108/17542731311299582] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Savignac H, Finger B, Pizzo R, O'Leary O, Dinan T, Cryan J. Increased sensitivity to the effects of chronic social defeat stress in an innately anxious mouse strain. Neuroscience 2011; 192:524-36. [DOI: 10.1016/j.neuroscience.2011.04.054] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 04/25/2011] [Indexed: 01/03/2023]
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Savignac HM, Dinan TG, Cryan JF. Resistance to early-life stress in mice: effects of genetic background and stress duration. Front Behav Neurosci 2011; 5:13. [PMID: 21519375 PMCID: PMC3075880 DOI: 10.3389/fnbeh.2011.00013] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Accepted: 03/03/2011] [Indexed: 12/11/2022] Open
Abstract
Early-life stress can induce marked behavioral and physiological impairments in adulthood including cognitive deficits, depression, anxiety, and gastrointestinal dysfunction. Although robust rat models of early-life stress exist there are few established effective paradigms in the mouse. Genetic background and protocol parameters used are two critical variables in such model development. Thus we investigated the impact of two different early-life stress protocols in two commonly used inbred mouse strains. C57BL/6 and innately anxious BALB/c male mice were maternally deprived 3 h daily, either from postnatal day 1 to 14 (protocol 1) or 6 to 10 (protocol 2). Animals were assessed in adulthood for cognitive performance (spontaneous alternation behavior test), anxiety [open-field, light/dark box (L/DB), and elevated plus maze (EPM) tests], and depression-related behaviors (forced swim test) in addition to stress-sensitive physiological changes. Overall, the results showed that early-life stressed mice from both strains displayed good cognitive ability and no elevations in anxiety. However, paradoxical changes occurred in C57BL/6 mice as the longer protocol (protocol 1) decreased anxiety in the L/DB and increased exploration in the EPM. In BALB/c mice there were also limited effects of maternal separation with both separation protocols inducing reductions in stress-induced defecation and protocol 1 reducing the colon length. These data suggest that, independent of stress duration, mice from both strains were on the whole resilient to the maladaptive effects of early-life stress. Thus maternal separation models of brain–gut axis dysfunction should rely on either different stressor protocols or other strains of mice.
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Affiliation(s)
- Hélène M Savignac
- Laboratory of Neurogastroenterology, Alimentary Pharmabiotic Centre, University College Cork Cork, Ireland
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