1
|
Miao Y, Xie X, Zhang Y, Ma X, Zhu X, Li R, Bi J, Duan R, Ai X. Analysis of differentially expressed lncRNAs and mRNAs associated with slow‑transit constipation. Gene 2024; 914:148400. [PMID: 38527672 DOI: 10.1016/j.gene.2024.148400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/12/2024] [Accepted: 03/20/2024] [Indexed: 03/27/2024]
Abstract
Slow transit constipation (STC) is a refractory gastrointestinal disease, accounting for approximately 13 ∼ 37 % of chronic constipation. However, the molecular mechanism of STC remains poorly understood. Herein, this study aims to identify the key mRNAs and lncRNAs associated with STC. To this end, we performed high-throughput RNA sequencing to identify differentially expressed (DE) mRNAs and lncRNAs in the whole-layer sigmoid intestinal tissues from 4 STC patients and 4 non-STC patients. The identified DE lncRNAs and mRNAs were validated through quantitative real-time PCR. Weighted gene co-expression network analysis (WGCNA) and Pearson correlation analysis were conducted to determine the significantly correlated DE mRNA-lncRNA pairs. A total of 1420 DE lncRNAs and 1634 DE mRNAs were identified. Kyoto Encyclopedia of Genes and Genomes analysis of DE mRNAs indicated that these DE mRNAs might be associated with systemic lupus erythematosus, alcoholism, intestinal immune network for IgA production, inflammatory bowel disease, NF-kappa B signaling pathway. WGCNA and Pearson correlation analyses jointly identified 16,577 significantly correlated DE mRNA-lncRNA pairs. Furthermore, lncRNAs LINC00641, LINC02268, LINC03013 were identified as hub lncRNAs. The protein-protein interaction (PPI) network of proteins encoded by DE mRNAs was established, and PPI-based analysis revealed that Interleukin 2(IL2), CD80 molecule (CD80), interleukin-17A (IL-17A) might play significant roles in the development of STC. This study analyzes the expression profiles of lncRNAs and mRNAs associated with STC. Our findings will contribute to further understanding of the molecular mechanism of STC and provide potential diagnostic or therapeutic biomarkers for STC.
Collapse
Affiliation(s)
- Yuanxin Miao
- Research Institute of Agricultural Biotechnology, Jingchu University of Technology, Jingmen 448000, China
| | - Xiongwei Xie
- Clinical Medical Research Center for Functional Colon Diseases of Hubei Province, Jingmen Central Hospital, Hubei Province, China
| | - Yonglian Zhang
- Clinical Medical Research Center for Functional Colon Diseases of Hubei Province, Jingmen Central Hospital, Hubei Province, China
| | - Xu Ma
- Clinical Medical Research Center for Functional Colon Diseases of Hubei Province, Jingmen Central Hospital, Hubei Province, China
| | - Xiaoxuan Zhu
- Clinical Medical Research Center for Functional Colon Diseases of Hubei Province, Jingmen Central Hospital, Hubei Province, China
| | - Rong Li
- Research Institute of Agricultural Biotechnology, Jingchu University of Technology, Jingmen 448000, China
| | - Jinhua Bi
- Research Institute of Agricultural Biotechnology, Jingchu University of Technology, Jingmen 448000, China
| | - Rui Duan
- Clinical Medical Research Center for Functional Colon Diseases of Hubei Province, Jingmen Central Hospital, Hubei Province, China.
| | - Xu Ai
- Clinical Medical Research Center for Functional Colon Diseases of Hubei Province, Jingmen Central Hospital, Hubei Province, China.
| |
Collapse
|
2
|
Manzar S. Kangaroo mother care and its effects on the digestive system of preterm infants. J Trop Pediatr 2024; 70:fmae006. [PMID: 38515250 DOI: 10.1093/tropej/fmae006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Affiliation(s)
- Shabih Manzar
- Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA 71103, USA
| |
Collapse
|
3
|
Tu X, Ren H, Bu S. Therapeutic effects of curcumin on constipation-predominant irritable bowel syndrome is associated with modulating gut microbiota and neurotransmitters. Front Microbiol 2023; 14:1274559. [PMID: 38163069 PMCID: PMC10757613 DOI: 10.3389/fmicb.2023.1274559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/21/2023] [Indexed: 01/03/2024] Open
Abstract
Introduction Constipation-predominant irritable bowel syndrome (IBS-C) is a functional bowel disease that affects 10-20% of the population worldwide. Curcumin (CUR) is widely used in traditional Chinese medicine to treat IBS, but its mechanism of action needs further investigation. Methods In this study, we used mosapride (MOS) as a positive control to evaluate the changes in gut microbiota in IBS-C rat models after treatment with CUR or MOS by analyzing 16S rDNA variation. In addition, we used enzyme immunoassay kits and immunohistochemical analysis to investigate whether CUR or MOS influenced serotonin (5-HT), substance P (SP), and vasoactive intestinal peptide (VIP) levels in the serum and colon of IBS-C rats. Results The study showed that rats supplemented with CUR showed significantly increased fecal weight, fecal water content, small intestine transit rate and significantly decreased serum levels of 5-HT, VIP and SP compared to the IBS group (p < 0.05). In addition, treatment with CUR changed the relative abundance of Blautia, Sutterella, Acetanaerobacterium and Ruminococcus2 in the gut microbiota. Discussion This study showed that the efficacy of CUR on IBS-C was possibly by modulating the microbiota and lowering the serum levels of HT, SP, and VIP.
Collapse
Affiliation(s)
- Xiaoting Tu
- Department of Gastroenterology, Jinshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Hongyan Ren
- Shanghai Mobio Biomedical Technology Co. Ltd., Shanghai, China
| | - Shurui Bu
- Department of Gastroenterology, Jinshan Hospital Affiliated to Fudan University, Shanghai, China
| |
Collapse
|
4
|
Yang W, Guo H, Niu J, Liu J, Su R, Bai Y, Zhang S, Liu Q, Sun N. Phloroglucinol inhibits oxytocin-induced contraction in rat gastric circular muscle and uterine smooth muscle. J OBSTET GYNAECOL 2023; 43:2130208. [PMID: 36227618 DOI: 10.1080/01443615.2022.2130208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Phloroglucinol is commonly used to alleviate dysmenorrhoea and stomach cramps. However, there is little evidence of phloroglucinol in the mechanism of primary dysmenorrhoea (PD) development. In this study, a PD rat model was established. The effects of phloroglucinol on the contraction of rat gastric circular muscle and uterine smooth muscle induced by oxytocin (OT) were investigated. The writhing response, and levels of oestradiol (E2), prostaglandin e2 (PGE2), and prostaglandin f2α (PGF2α) were determined. The protein and mRNA levels of OT receptor (OTR) were detected. OT showed a significant promoting effect on gastric circular muscle and uterine smooth muscle contraction. However, phloroglucinol strongly inhibited the contraction induced by 10-6 mol/L of OT. We also found that phloroglucinol reduced writhing response and attenuated uterine damage. Compared to the blank group, E2 and PGF2α were significantly increased, but PGE2 was significantly decreased in the PD model group. Phloroglucinol was found to reverse the changes of E2, PGF2α and PGE2. Moreover, phloroglucinol reduced the protein and mRNA levels of OTR. In conclusion, phloroglucinol could attenuate PD and inhibit the contraction of rat gastric circular muscle and uterine smooth muscle induced by OT. The mechanism might be related with the regulation of OTR expression.IMPACT STATEMENTWhat is already known on this subject? Phloroglucinol is commonly used to alleviate dysmenorrhoea and stomach cramps. However, there is little evidence of phloroglucinol in the mechanism of primary dysmenorrhoea (PD) development.What do the results of this study add? Phloroglucinol could attenuate PD and inhibit the contraction of rat gastric circular muscle and uterine smooth muscle induced by OT. The underlying mechanisms of phloroglucinol for PD treatment may be associated with OTR.What are the implications of these findings for clinical practice and/or further research? These findings provide novel ideas for the role of phloroglucinol in PD development.
Collapse
Affiliation(s)
- Wenhui Yang
- Department of Pharmacy, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Hua Guo
- Department of Pharmacy, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Jinbo Niu
- Department of Pharmacy, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Junya Liu
- Department of Pharmacy, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Ran Su
- Department of Pharmacy, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Yingde Bai
- Department of Pharmacy, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Shuang Zhang
- Department of Pharmacy, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Qian Liu
- Department of Pharmacy, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Nan Sun
- Department of Pharmacy, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| |
Collapse
|
5
|
Paiva L, Lozic M, Allchorne A, Grinevich V, Ludwig M. Identification of peripheral oxytocin-expressing cells using systemically applied cell-type specific adeno-associated viral vector. J Neuroendocrinol 2021; 33:e12970. [PMID: 33851744 DOI: 10.1111/jne.12970] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 03/19/2021] [Accepted: 03/19/2021] [Indexed: 12/11/2022]
Abstract
Oxytocin is primarily synthesised in the brain and is widely known for its role in lactation and parturition after being released into the blood from the posterior pituitary gland. Nevertheless, peripheral tissues have also been reported to express oxytocin. Using systemic injection of a recombinant adeno-associated virus vector, we investigated the expression of the green fluorescent protein Venus under the control of the oxytocin promoter in the gastrointestinal tract, pancreas and testes of adult rats. Here, we confirm that the vector infects oxytocin neurones of the enteric nervous system in ganglia of the myenteric and submucosal plexuses. Venus was detected in 25%-60% of the ganglia in the myenteric and submucosal plexuses identified by co-staining with the neuronal marker PGP9.5. Oxytocin expression was also detected in the islets of Langerhans in the pancreas and the Leydig cells of the testes. Our data illustrate that peripheral administration of the viral vector represents a powerful method for selectively labelling oxytocin-producing cells outside the brain.
Collapse
Affiliation(s)
- Luis Paiva
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Maja Lozic
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Andrew Allchorne
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Valery Grinevich
- Department of Neuropeptide Research in Psychiatry, Central Institute of Mental Health, University Heidelberg, Mannheim, Germany
| | - Mike Ludwig
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, UK
- Department of Immunology, Centre for Neuroendocrinology, University of Pretoria, Pretoria, South Africa
| |
Collapse
|
6
|
Miao Y, Mei Q, Fu C, Liao M, Liu Y, Xu X, Li X, Zhao S, Xiang T. Genome-wide association and transcriptome studies identify candidate genes and pathways for feed conversion ratio in pigs. BMC Genomics 2021; 22:294. [PMID: 33888058 PMCID: PMC8063444 DOI: 10.1186/s12864-021-07570-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 03/25/2021] [Indexed: 12/03/2022] Open
Abstract
Background The feed conversion ratio (FCR) is an important productive trait that greatly affects profits in the pig industry. Elucidating the genetic mechanisms underpinning FCR may promote more efficient improvement of FCR through artificial selection. In this study, we integrated a genome-wide association study (GWAS) with transcriptome analyses of different tissues in Yorkshire pigs (YY) with the aim of identifying key genes and signalling pathways associated with FCR. Results A total of 61 significant single nucleotide polymorphisms (SNPs) were detected by GWAS in YY. All of these SNPs were located on porcine chromosome (SSC) 5, and the covered region was considered a quantitative trait locus (QTL) region for FCR. Some genes distributed around these significant SNPs were considered as candidates for regulating FCR, including TPH2, FAR2, IRAK3, YARS2, GRIP1, FRS2, CNOT2 and TRHDE. According to transcriptome analyses in the hypothalamus, TPH2 exhibits the potential to regulate intestinal motility through serotonergic synapse and oxytocin signalling pathways. In addition, GRIP1 may be involved in glutamatergic and GABAergic signalling pathways, which regulate FCR by affecting appetite in pigs. Moreover, GRIP1, FRS2, CNOT2, and TRHDE may regulate metabolism in various tissues through a thyroid hormone signalling pathway. Conclusions Based on the results from GWAS and transcriptome analyses, the TPH2, GRIP1, FRS2, TRHDE, and CNOT2 genes were considered candidate genes for regulating FCR in Yorkshire pigs. These findings improve the understanding of the genetic mechanisms of FCR and may help optimize the design of breeding schemes. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-07570-w.
Collapse
Affiliation(s)
- Yuanxin Miao
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China.,Jingchu University of Technology, Jingmen, 448000, China
| | - Quanshun Mei
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China
| | - Chuanke Fu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China
| | - Mingxing Liao
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China.,Agriculture and Rural Affairs Administration of Jingmen City, Jingmen, 448000, China
| | - Yan Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China
| | - Xuewen Xu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China
| | - Xinyun Li
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China
| | - Shuhong Zhao
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China
| | - Tao Xiang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China. .,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China.
| |
Collapse
|
7
|
Xu F, Cheng Y, Ruan G, Fan L, Tian Y, Xiao Z, Chen D, Wei Y. New pathway ameliorating ulcerative colitis: focus on Roseburia intestinalis and the gut-brain axis. Therap Adv Gastroenterol 2021; 14:17562848211004469. [PMID: 33948112 PMCID: PMC8053823 DOI: 10.1177/17562848211004469] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 03/04/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The community of gut microbes is a key factor controlling the intestinal barrier that communicates with the nervous system through the gut-brain axis. Based on our clinical data showing that populations of Roseburia intestinalis are dramatically decreased in the gut of patients with ulcerative colitis, we studied the efficacy of a strain belonging to this species in the context of colitis and stress using animal models. METHODS Dextran sulfate sodium was used to induce colitis in rats, which then underwent an enema with R. intestinalis as a treatment. The disease activity index, fecal changes and body weight of rats were recorded to evaluate colitis, while histological and immunohistochemical analyses were carried out to examine colon function, and 16S rRNA sequencing was performed to evaluate the gut microbiota change. Behavioral assays and immunohistochemical staining of brain were performed to assess the effect of R. intestinalis on the gut-brain axis. RESULTS Colitis-related symptoms in rats were significantly relieved after R. intestinalis enema, and the stool traits and colon length of rats were significantly recovered after treatment. The gut epithelial integrity and intestinal barrier were restored in treated rats, as evidenced by the higher expression of Zo-1 in colon tissues, accompanied by the restoration of gut microbiota. Meanwhile, depressive-like behaviors of rats were reduced after treatment, and laboratory experiments on neuronal cells also showed that IL-6, IL-7 and 5-HT were downregulated by R. intestinalis treatment in both serum and brain tissue, while Iba-1 expression was reduced in treated rats. CONCLUSIONS The administration of R. intestinalis contributes to restoration of the gut microbiota, promoting colon repair and the recovery of gastrointestinal function. These alterations are accompanied by the relief of depressive-like behaviors through a process modulated by the neuronal network and the regulation of inflammation by the gut-brain axis.
Collapse
Affiliation(s)
- Fenghua Xu
- Department of Gastroenterology, Army Medical Center of PLA Affiliated with Army Medical University, Chongqing, China
| | - Yi Cheng
- Department of Gastroenterology, Army Medical Center of PLA Affiliated with Army Medical University, Chongqing, China
| | - Guangcong Ruan
- Department of Gastroenterology, Army Medical Center of PLA Affiliated with Army Medical University, Chongqing, China
| | - Liqin Fan
- Department of Gastroenterology, Army Medical Center of PLA Affiliated with Army Medical University, Chongqing, China
| | - Yuting Tian
- Department of Gastroenterology, Army Medical Center of PLA Affiliated with Army Medical University, Chongqing, China
| | - Zhifeng Xiao
- Department of Gastroenterology, Army Medical Center of PLA Affiliated with Army Medical University, Chongqing, China
| | - Dongfeng Chen
- Department of Gastroenterology, Army Medical Center of PLA Affiliated with Army Medical University, Chongqing, China
| | | |
Collapse
|
8
|
Abstract
The hypothalamic peptide oxytocin has been increasingly recognized as a hormone and neurotransmitter with important effects on energy intake, metabolism, and body weight and is under investigation as a potential novel therapeutic agent for obesity. The main neurons producing oxytocin and expressing the oxytocin receptor are strategically located in brain areas known to be critically involved in homeostatic energy balance as well as hedonic and motivational aspects of eating behavior. In this chapter, we will review the central and peripheral physiology of oxytocin and the interaction of oxytocin with key hormones and neural circuitries that affect food intake and metabolism. Next, we will synthesize the available data on endogenous oxytocin levels related to caloric intake, body weight, and metabolic status. We will then review the effects of exogenous oxytocin administration on eating behavior, body weight, and metabolism in humans, including in healthy individuals as well as specific populations with suspected perturbations involving oxytocin pathways. Finally, we will address the promise and fundamental challenges of translating this line of research to clinical care.
Collapse
Affiliation(s)
- Liya Kerem
- Neuroendocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States; Division of Pediatric Endocrinology, Massachusetts General Hospital for Children, Boston, MA, United States
| | - Elizabeth A Lawson
- Neuroendocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States.
| |
Collapse
|