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Subhan F, Zizzo MG, Serio R. Motor dysfunction of the gut in Duchenne muscular dystrophy: A review. Neurogastroenterol Motil 2024; 36:e14804. [PMID: 38651673 DOI: 10.1111/nmo.14804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Duchenne's muscular dystrophy (DMD) is a severe type of hereditary, neuromuscular disorder caused by a mutation in the dystrophin gene resulting in the absence or production of truncated dystrophin protein. Conventionally, clinical descriptions of the disorder focus principally on striated muscle defects; however, DMD manifestations involving gastrointestinal (GI) smooth muscle have been reported, even if not rigorously studied. PURPOSE The objective of the present review is to offer a comprehensive perspective on the existing knowledge concerning GI manifestations in DMD, focusing the attention on evidence in DMD patients and mdx mice. This includes an assessment of symptomatology, etiological pathways, and potential corrective approaches. This paper could provide helpful information about DMD gastrointestinal implications that could serve as a valuable orientation for prospective research endeavors in this field. This manuscript emphasizes the effectiveness of mdx mice, a DMD animal model, in unraveling mechanistic insights and exploring the pathological alterations in the GI tract. The gastrointestinal consequences evident in patients with DMD and the mdx mice models are a significant area of focus for researchers. The exploration of this area in depth could facilitate the development of more efficient therapeutic approaches and improve the well-being of individuals impacted by the condition.
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Affiliation(s)
- Fazal Subhan
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Palermo, Italy
| | - Maria Grazia Zizzo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Palermo, Italy
- ATeN (Advanced Technologies Network) Center, Viale delle Scienze, University of Palermo, Palermo, Italy
| | - Rosa Serio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Palermo, Italy
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2
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Yu C, Mao X, Zhou C. Influence of acupuncture and moxibustion on gastrointestinal function and adverse events in gastric cancer patients after surgery and chemotherapy: a meta-analysis. Support Care Cancer 2024; 32:524. [PMID: 39023776 DOI: 10.1007/s00520-024-08740-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 07/13/2024] [Indexed: 07/20/2024]
Abstract
OBJECTIVE The impact of acupuncture and moxibustion on postoperative complications and adverse events (AEs) of chemotherapy in patients with gastric cancer (GC) has been investigated. Through a meta-analysis of existing randomized controlled trials (RCTs), this study sought to strengthen the evidentiary basis to help investigators further understand the effects of moxibustion and acupuncture on postoperative complications and AEs of chemotherapy among GC patients. METHODS Embase, Web of Science, PubMed, The Cochrane Library, China National Knowledge Infrastructure (CNKI), Wanfang Database, and VIP Database for Chinese Technical Periodicals were searched to collect RCTs on effects of acupuncture and moxibustion on gastrointestinal function and AEs among GC patients undergoing surgery and chemotherapy. Outcome measures included postoperative gastrointestinal recovery (bowel sound recovery time, time to first flatus/defecation/feeding), the incidence of AEs (nausea and vomiting, abdominal distension, and diarrhea), myelosuppression (white blood cells, hemoglobin, and platelet), and immune function indicators (CD3+ and CD4+). To assess quality, the Cochrane Risk of Bias Tool was utilized. Review Manager 5.4 was implemented to do the meta-analysis. RESULTS Fifteen eligible RCTs involved 1259 patients. Meta-analysis results showed that the experimental group had a significantly shorter bowel sound recovery time (MD = - 14.57, 95% CI = [- 18.97, - 10.18], P < 0.00001), time to first flatus (MD = - 17.56, 95% CI = [- 22.23, - 12.88], P < 0.00001), time to first defecation (MD = - 17.05, 95% CI = [- 21.02, - 13.09], P < 0.00001), and time to first feeding (MD = - 23.49, 95% CI = [- 28.81, - 18.17], P < 0.00001) than the control group. There were significant decreases in the incidence of nausea and vomiting (RR = 0.46, 95% CI = [0.21, 1.02], P = 0.05) and abdominal distension (RR = 0.45, 95% CI = [0.27, 0.75], P = 0.002) observed in the experimental group in comparison with the control group. The experimental group demonstrated a significant increase in white blood cell counts in comparison with to the control group (MD = 0.89, 95% CI = [0.23, 1.55], P = 0.008). The experimental group showed significantly higher levels of CD3+ (MD = 7.30, 95% CI = [1.86, 12.74], P = 0.009) and CD4+ (MD = 2.75, 95% CI = [1.61, 3.90], P < 0.00001) than the control group. CONCLUSION Among GC patients, acupuncture and moxibustion can aid in gastrointestinal function recovery, reduce the incidence of AEs of surgery and chemotherapy, and improve immune function.
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Affiliation(s)
- Chun Yu
- Department of Gastrointestinal Surgery, Quzhou People's Hospital (Quzhou Hospital Affiliated to Wenzhou Medical University), Zhejiang Province, Quzhou City, 324000, China
| | - Xinglong Mao
- Department of Gastrointestinal Surgery, Quzhou People's Hospital (Quzhou Hospital Affiliated to Wenzhou Medical University), Zhejiang Province, Quzhou City, 324000, China
| | - Chun Zhou
- Department of Rehabilitation Medicine, Quzhou People's Hospital (Quzhou Hospital Affiliated to Wenzhou Medical University), Zhejiang Province, Quzhou City, 324000, China.
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Mahapatra C, Kumar R. Biophysical Mechanisms of Vaginal Smooth Muscle Contraction: The Role of the Membrane Potential and Ion Channels. PATHOPHYSIOLOGY 2024; 31:225-243. [PMID: 38804298 PMCID: PMC11130850 DOI: 10.3390/pathophysiology31020018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/10/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024] Open
Abstract
The vagina is an essential component of the female reproductive system and is responsible for providing female sexual satisfaction. Vaginal smooth muscle contraction plays a crucial role in various physiological processes, including sexual arousal, childbirth, and urinary continence. In pathophysiological conditions, such as pelvic floor disorders, aberrations in vaginal smooth muscle function can lead to urinary incontinence and pelvic organ prolapse. A set of cellular and sub-cellular physiological mechanisms regulates the contractile properties of the vaginal smooth muscle cells. Calcium influx is a crucial determinant of smooth muscle contraction, facilitated through voltage-dependent calcium channels and calcium release from intracellular stores. Comprehensive reviews on smooth muscle biophysics are relatively scarce within the scientific literature, likely due to the complexity and specialized nature of the topic. The objective of this review is to provide a comprehensive description of alterations in the cellular physiology of vaginal smooth muscle contraction. The benefit associated with this particular approach is that conducting a comprehensive examination of the cellular mechanisms underlying contractile activation will enable the creation of more targeted therapeutic agents to control vaginal contraction disorders.
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Affiliation(s)
- Chitaranjan Mahapatra
- Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA 94158, USA
- Paris Saclay Institute of Neuroscience, 91440 Saclay, France
| | - Ravinder Kumar
- Department of Pathology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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Wang X, Liu X, Wang Y, Yang K, Yeertai Y, Jia Q, Li L, Jiang K, Du G, Ling J. Chaihu Shugan Powder inhibits interstitial cells of cajal mitophagy through USP30 in the treatment of functional dyspepsia. JOURNAL OF ETHNOPHARMACOLOGY 2024; 323:117695. [PMID: 38163556 DOI: 10.1016/j.jep.2023.117695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/29/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Chaihu Shugan Powder (CHSGP) has significant clinical efficacy in the treatment of functional dyspepsia (FD), but the specific mechanism requires further study. AIM OF STUDY The aim of this study was to investigate the therapeutic effect of CHSGP on FD rats and the underlying mechanism of the effect on interstitial cells of cajal (ICC) mitophagy. MATERIALS AND METHODS The tail-clamping stimulation method was utilized to establish an FD rat model in vivo. Gastric emptying rate and small intestinal propulsion rate test, H&E staining, and Immunohistochemistry were conducted to evaluate the therapeutic effects of CHSGP on FD rats. In vitro, the regulatory effect of CHSGP on CCCP-mediated ICC mitophagy was further investigated by CCK8, Transmission electron microscope, immunofluorescence co-staining, Quantitative polymerase chain reaction and Western blot to reveal the potential mechanisms of CHSGP inhibited ICC mitophagy. RESULTS Animal experiments provided evidence that CHSGP promoted gastric motility, increased ICC numbers, reduced Parkin expression, and elevated USP30 expression in FD rats. In vitro, further mechanism research demonstrated that CHSGP decreased LC3Ⅱ/LC3Ⅰ、PINK1、Parkin、PHB2 protein expression and increased USP30 protein expression. Furthermore, CHSGP increased Mfn2 protein expression by suppressing activation of the PINK1/Parkin pathway when USP30 is knocked down, consequently reducing CCCP-induced ICC mitophagy. CONCLUSIONS These results suggest that CHSGP may treat FD against CCCP-induced ICC mitophagy by the up-regulation of via PINK1/Parkin pathway.
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Affiliation(s)
- Xiangxiang Wang
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Xuejiao Liu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Yujiao Wang
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Keming Yang
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Yeliya Yeertai
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Qingling Jia
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Li Li
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China
| | - Kailin Jiang
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
| | - Guangli Du
- School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
| | - Jianghong Ling
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
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Rolleman NH, Visser IM, Klein WM, Van Putten MJAM, De Blaauw I, Botden SMBI. Feasibility and repeatability of ultrasound-guided surface electroenterography to measure colonic slow wave motility in healthy adults. BMC Gastroenterol 2024; 24:114. [PMID: 38500056 PMCID: PMC10949649 DOI: 10.1186/s12876-024-03196-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 03/05/2024] [Indexed: 03/20/2024] Open
Abstract
Surface electroenterography is a potential non-invasive alternative to current diagnostics of colonic motility disorders. However, electrode positioning in electroenterography is often based on general anatomy and may lack generalizability. Furthermore, the repeatability of electroenterography measurements is unknown. This study aimed to evaluate ultrasound-guided electrode positioning for electroenterography measurements and to determine the repeatability of those measurements. In ten healthy adults, two electroenterography procedures were performed, consisting of fasting, ultrasound-guided electrode localization and two 20-minute electroenterography recordings separated by a meal. The dominant frequency, the mean power density (magnitude of colonic motility) and the power percent difference (relative pre- to postprandial increase in magnitude) were determined. Repeatability was determined by Lin's concordance correlation coefficient. The results demonstrated that the dominant frequency did not differ between pre- and postprandial recordings and was 3 cpm, characteristic of colonic motility. The mean power density increased between the pre- and postprandial measurements, with an average difference of over 200%. The repeatability of both the dominant frequency and power density was poor to moderate, whereas the correlation coefficient of the power percent difference was poor. Concluding, ultrasound-guided surface electroenterography seems able to measure the gastrocolic reflex, but the dissatisfactory repeatability necessitates optimization of the measurement protocol.
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Affiliation(s)
- Nick H Rolleman
- Department of Pediatric Surgery, Radboud University Medical Centre- Amalia Children's Hospital, Geert Grooteplein Zuid 10, 6500 HB, Nijmegen, Postal box 9101, The Netherlands
- Technical Medicine, University of Twente, Enschede, The Netherlands
| | - Iris M Visser
- Department of Pediatric Surgery, Radboud University Medical Centre- Amalia Children's Hospital, Geert Grooteplein Zuid 10, 6500 HB, Nijmegen, Postal box 9101, The Netherlands
- Technical Medicine, University of Twente, Enschede, The Netherlands
| | - Willemijn M Klein
- Department of Pediatric Surgery, Radboud University Medical Centre- Amalia Children's Hospital, Geert Grooteplein Zuid 10, 6500 HB, Nijmegen, Postal box 9101, The Netherlands
- Department of Medical Imaging, Radboud University Medical Centre, Nijmegen, The Netherlands
| | | | - Ivo De Blaauw
- Department of Pediatric Surgery, Radboud University Medical Centre- Amalia Children's Hospital, Geert Grooteplein Zuid 10, 6500 HB, Nijmegen, Postal box 9101, The Netherlands
| | - Sanne M B I Botden
- Department of Pediatric Surgery, Radboud University Medical Centre- Amalia Children's Hospital, Geert Grooteplein Zuid 10, 6500 HB, Nijmegen, Postal box 9101, The Netherlands.
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Wang Y, Wang L, Ni X, Jiang M, Zhao L. Effect of acupuncture therapy for postoperative gastrointestinal dysfunction in gastric and colorectal cancers: an umbrella review. Front Oncol 2024; 14:1291524. [PMID: 38375156 PMCID: PMC10876295 DOI: 10.3389/fonc.2024.1291524] [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: 09/13/2023] [Accepted: 01/16/2024] [Indexed: 02/21/2024] Open
Abstract
Background Gastrointestinal dysfunction is a prevalent postoperative complication in patients undergoing surgery for gastric cancer and colorectal cancer. Acupuncture holds promise as a great potential therapeutic intervention. The efficacy of acupuncture therapy for postoperative gastrointestinal dysfunction has been assessed in some studies, however, the variability in results and study quality influences practical clinical application. Therefore, it is necessary to summarize and analyze the published clinical research data in this field. Objective This study aimed to synthesize evidence from systematic reviews and meta-analyses in order to assess the efficacy of acupuncture therapy for postoperative gastrointestinal dysfunction in patients with gastric and colorectal cancer. Design Umbrella review of systematic reviews and meta-analyses. Methods We searched China National Knowledge Infrastructure (CNKI), Wanfang Data Knowledge Service Platform (Wanfang), China Science and Technology Journal Database (VIP), Chinese biomedical literature service system (SinoMed), PubMed, Embase, Cochrane Library, and Web of Science for all systematic review/meta-analysis of acupuncture for postoperative gastrointestinal dysfunction in gastric and colorectal cancers. From the establishment of the database to July 8, 2023. Two independent reviewers conducted literature extraction and evaluation. The quality of included studies was assessed using The preferred reporting items for systematic reviews and meta-analysis statements 2020 (PRISMA2020), the quality of the methods was assessed using a measuring tool to assess systematic reviews 2 (AMSTAR 2), and the level of evidence was assessed using the grading of recommendations assessment, development, and evaluation (GRADE). The statistical analysis was conducted using RevMan 5.4, and the effect size was expressed as Odds Ratio (OR), Mean Difference (MD), and 95% confidence interval (CI) based on the extracted data type (test level α= 0.05). The heterogeneity was assessed using the I 2 statistic and Q-test (χ2). The outcome indicators such as time to first defecation and time to first flatus were utilized as endpoints to assess the efficacy of different acupuncture therapies. Results A total of six systematic reviews/meta-analyses were included in this study, involving 12 different acupuncture therapies. PRISMA 2020 indicated that the studies all scored between 13-20.5. There were deficiencies in protocol and registration, assessment of the quality of evidence for outcome indicators, risk of bias, and declaration of conflict of interest. The AMSTAR 2 evaluations showed that five studies were very low quality and one was low quality. The level of evidence for various acupuncture interventions varied from very low to moderate.For patients with gastrointestinal dysfunction after gastric cancer surgery, ear acupressure [MD=-11.92, 95% (-14.39,-9.44), P<0.00001], moxibustion [MD=-19.16, 95% (-23.00,-16.22), P<0.00001], warm needling [MD=-12.81, 95% (-17.61,-8.01), P<0.00001], acupoint application [MD=-6.40, 95% (-10.26,-2.54), P=0.001], manual acupuncture [MD=-18.32, 95% (-26.31,-10.39), P<0.00001] and transcutaneous electrical acupoint stimulation (TEAS) [MD=-5.17, 95% (-9.59,-0.74), P=0.02] could promote the recovery of gastrointestinal function after surgery.For postoperative colorectal cancer patients, electroacupuncture [MD=-15.17, 95% (-28.81,-1.54), P<0.05], manual acupuncture [MD=-20.51, 95% (-39.19,-1.84), P<0.05], warm needling [MD=-18.55, 95% (-23.86,-13.24), P<0.05], ear acupressure [MD=-5.38, 95% (-9.80,-0.97), P<0.05], acupoint application [MD=-26.30, 95% (-32.81,-19.79), P<0.05], ear acupressure+acupressure [MD=-9.67, 95% (-13.58,-5.76), P<0.05], ear acupressure+manual acupuncture [MD=-18.70, 95% (-21.01,-16.39), P<0.05], ear acupressure+moxibustion [MD=-22.90, 95% (-30.10,-15.70), P<0.05], moxibustion+acupressure [MD=-14.77, 95% (-20.59,-8.95), P<0.05] improved postoperative gastrointestinal function. In addition, the efficacy of acupressure [MD=-12.00, 95% (-31.60,7.60), P>0.05] needed to be further demonstrated. Conclusion Acupuncture therapy has a positive therapeutic impact on postoperative gastrointestinal dysfunction in gastric and colorectal cancers, but this finding should still be taken with caution.
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Affiliation(s)
- Yuhan Wang
- Acupuncture and Moxibustion College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Linjia Wang
- Acupuncture and Moxibustion College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xixiu Ni
- Acupuncture and Moxibustion College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Minjiao Jiang
- Acupuncture and Moxibustion College, Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu, China
| | - Ling Zhao
- Acupuncture and Moxibustion College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- Acupuncture Clinical Research Center of Sichuan Province, Chengdu, China
- Key Laboratory of Acupuncture for Senile Disease (Chengdu University of TCM), Ministry of Education, Chengdu, China
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Zhou J, Zhang Q, Wang W, Sun L, Li R, Zhao S, Wang D. The benefits of R anastomotic technique for Billroth-II reconstruction with Braun anastomosis during totally laparoscopic distal gastrectomy: a propensity score matching analysis. Int J Surg 2024; 110:23-31. [PMID: 37755370 PMCID: PMC10793833 DOI: 10.1097/js9.0000000000000775] [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: 04/27/2023] [Accepted: 09/09/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Currently, there is no consensus on the most appropriate anastomotic site, anastomotic line, and direction for Billroth-II reconstruction with Braun anastomosis (B-II-B anastomosis) during totally laparoscopic distal gastrectomy (TLDG). Herein, the authors presented a novel anastomotic technique called R anastomosis for B-II-B anastomosis and compared it with the conventional B-II-B anastomosis technique to assess its feasibility, safety, and effectiveness. METHODS Between March 2019 and September 2022 in our centre, R anastomosis was performed on 123 patients undergoing TLDG for distal gastric cancer. A retrospective review of a prospectively collected database identified patients who underwent TLDG between January 2010 and September 2022. Patients who underwent R anastomosis were matched in a 1:1 ratio with patients who underwent conventional anastomosis using a propensity score based on age, sex, preoperative BMI, American Society of Anesthesiologists (ASA) score, and the history of abdominal surgery. Surgical and postoperative outcomes and clinicopathological data were analyzed for both groups. RESULTS During the study period, 246 patients were included, 123 in each group. No intraoperative complications associated with digestive tract reconstruction and no cases of conversion to open surgery were reported in either group; furthermore, no incidences of perioperative mortality were noted in either group. The R group had a significantly reduced anastomotic time compared to the control group (30 ± 4.1 vs. 36 ± 5.3 min, P < 0.001). Perioperatively, the incidences of Clavien-Dindo grade II or higher complications were 6.5% (8/123) and 12.2% (15/123) in the R and control groups with no significant difference between the two groups. Postoperative gastric emptying dysfunction was found in five and one patient in the control and R groups, respectively. CONCLUSION R anastomosis is a safe and effective technique for B-II-B anastomosis following TLDG. This novel technique enhances the convenience of performing anastomosis and can reduce postoperative gastric emptying dysfunction.
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Affiliation(s)
- Jiajie Zhou
- Northern Jiangsu People’s Hospital, Clinical Teaching Hospital of Medical School, Nanjing University
- Northern Jiangsu People’s Hospital, Yangzhou
| | - Qi Zhang
- Northern Jiangsu People’s Hospital, Yangzhou
| | - Wei Wang
- Northern Jiangsu People’s Hospital, Yangzhou
| | - Longhe Sun
- The Forth People’s Hospital of Taizhou, Taizhou, China
| | - Ruiqi Li
- Northern Jiangsu People’s Hospital, Clinical Teaching Hospital of Medical School, Nanjing University
| | - Shuai Zhao
- Northern Jiangsu People’s Hospital, Clinical Teaching Hospital of Medical School, Nanjing University
| | - Daorong Wang
- Northern Jiangsu People’s Hospital, Clinical Teaching Hospital of Medical School, Nanjing University
- Northern Jiangsu People’s Hospital, Yangzhou
- Yangzhou Key Laboratory of Basic and Clinical Transformation of Digestive and Metabolic Disease Yangzhou, China
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Sasidharan A, Peethambar BA, Kumar KS, Kumar AV, Hiregange A, Fawkes N, Collins JF, Grosche A, Vidyasagar S. Advancing peristalsis deciphering in mouse small intestine by multi-parameter tracking. Commun Biol 2023; 6:1237. [PMID: 38062160 PMCID: PMC10703907 DOI: 10.1038/s42003-023-05631-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Assessing gastrointestinal motility lacks simultaneous evaluation of intraluminal pressure (ILP), circular muscle (CM) and longitudinal muscle (LM) contraction, and lumen emptying. In this study, a sophisticated machine was developed that synchronized real-time recordings to quantify the intricate interplay between CM and LM contractions, and their timings for volume changes using high-resolution cameras with machine learning capability, the ILP using pressure transducers and droplet discharge (DD) using droplet counters. Results revealed four distinct phases, BPhase, NPhase, DPhase, and APhase, distinguished by pressure wave amplitudes. Fluid filling impacted LM strength and contraction frequency initially, followed by CM contraction affecting ILP, volume, and the extent of anterograde, retrograde, and segmental contractions during these phases that result in short or long duration DD. This comprehensive analysis sheds light on peristalsis mechanisms, understand their sequence and how one parameter influenced the other, offering insights for managing peristalsis by regulating smooth muscle contractions.
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Affiliation(s)
- Anusree Sasidharan
- Department of Radiation Oncology, University of Florida, Gainesville, FL, USA
| | | | | | - Ashok V Kumar
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL, USA
| | | | | | - James F Collins
- Food Science and Human Nutrition Department, University of Florida, Gainesville, FL, USA
| | - Astrid Grosche
- Department of Radiation Oncology, University of Florida, Gainesville, FL, USA
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Rezamand G, Joukar F, Amini-Salehi E, Delam H, Zare R, Samadi A, Mavadati S, Hassanipour S, Mansour-Ghanaei F. The effectiveness of walking exercise on the bowel preparation before colonoscopy: a single blind randomized clinical trial study. BMC Gastroenterol 2023; 23:351. [PMID: 37814210 PMCID: PMC10561431 DOI: 10.1186/s12876-023-02987-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 10/03/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND AND AIM Bowel preparation is a crucial factor affecting the diagnostic accuracy of colonoscopy, and few randomized control trials evaluated enhancement in bowel preparation. In this study, we aimed to evaluate the effectiveness of walking exercises on bowel preparation before a colonoscopy procedure. METHODS The present study is a single-blind randomized controlled trial involving 262 patients scheduled for colonoscopy procedures. These patients were randomly assigned to two groups: an intervention group (n = 131) and a control group (n = 131). In the intervention group, participants followed a predetermined plan that included the consumption of specific liquids and foods, bisacodyl pills, polyethylene glycol powder, and a regimen of walking exercises in preparation for their colonoscopy. Conversely, individuals in the control group followed the same regimen but were not instructed to engage in walking exercises. On the day of the colonoscopy, both groups were assessed for their level of physical activity using a foot counter. Additionally, an experienced gastroenterologist evaluated and compared the bowel preparation between the two groups using the Boston Bowel Preparation Scale (BBPS). RESULTS The number of footsteps recorded in the two groups exhibited a significant difference (P < 0.001). Although there was no statistically significant difference between the intervention and control groups in terms of mean BBPS scores (6.26 ± 1.9 vs. 6.29 ± 1.9, P = 0.416), individuals who took more than 6900 steps had significantly higher BBPS scores compared to those with fewer than 6900 footsteps (6.62 ± 1.8 vs. 5.92 ± 1.9, P = 0.003).In the univariate analysis, BBPS was found to be significantly associated with individuals under the age of 50 (OR: 2.45, 95% CI: 1.30-4.61, P = 0.006) and smoking status (OR: 0.41, 95% CI: 0.17-0.94, P = 0.043). In the multivariate analysis, the relationship between BBPS and age below 50 and smoking remained significant (OR: 2.50, 95% CI: 1.30-4.70, P = 0.005, and OR: 0.38, 95% CI: 0.16-0.93, P = 0.034, respectively). CONCLUSION A higher number of footsteps taken especially more than 6900 can significantly enhance bowel preparation; however, walking exercise as an intervention before colonoscopy is not significantly associated with BBPS. Also, older people and smokers seem to have fewer benefits from walking exercises for bowel preparation. TRIAL REGISTRATION ISRCTN32724024 (Registration date:22/08/2018).
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Affiliation(s)
- Gholamreza Rezamand
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Farahnaz Joukar
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Ehsan Amini-Salehi
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Hamed Delam
- Student Research Committee, Larestan University of Medical Sciences, Larestan, Iran
| | - Reza Zare
- Student Research Committee, Larestan University of Medical Sciences, Larestan, Iran
| | - Alireza Samadi
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | | | - Soheil Hassanipour
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Fariborz Mansour-Ghanaei
- Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran.
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Zhang D, Lu R, Wang M, Ji J, Zhang S, Wang S, Zhang D, Chen M. Effects of Banxia Xiexin Decoction on apoptosis of interstitial cells of cajal by regulation of MiR-451-5p: An in vivo and in vitro study. JOURNAL OF ETHNOPHARMACOLOGY 2023; 314:116606. [PMID: 37192721 DOI: 10.1016/j.jep.2023.116606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/19/2023] [Accepted: 05/04/2023] [Indexed: 05/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Banxia Xiexin Decoction (BXD) is a traditional Chinese medical formula applied to gastrointestinal (GI) motility disorders. Previous studies showed that miR-451-5p was down-regulated in rats with GI motility disorders induced by gastric electrical dysrhythmia. Interstitial cells of cajal (ICCs) are pacemakers for GI motility, while loss of ICCs is responsible for GI motility disturbance. Thus, the underlying interaction mechanisms for BXD regulating ICCs apoptosis via miR-451-5p remain to be explored. AIM OF THE STUDY In this work, the main objectives were to examine the efficacy of BXD on ICCs via miR-451-5p both in GI motility disorders rats model and in vitro, as well as the potential contributions of SCF/c-kit signaling. MATERIALS AND METHODS Rats with gastric electrical dysrhythmia were established in male SD rats by using a single-day diet and a double fasting method (drinking diluted hydrochloric acid water during the period) for 4 weeks. The gastric slow wave (GSW) recording, RT-qPCR, and western blot were performed to examine the effects of BXD on ICCs apoptosis in rats with GED and miR-451-5p expression. In vitro assays included CCK-8, flow cytometry analysis, RT-qPCR, and western blot were applied to investigate the potential molecular mechanism of BXD on ICCs apoptosis via miR-451-5p. RESULTS BXD promoted gastric motility, reduced ICCs apoptosis, and elevated miR-451-5p in GED rats. In addition, miR-451-5p was significantly up-regulated in ICCs after BXD treatment compared with that in ICCs with miR-451-5p inhibitor transfection. Meanwhile, high miR-451-5p expression with either BXD treatment or miRNA mimics enhanced ICCs proliferation and inhibit apoptosis. Moreover, overexpression of miR-451-5p can reverse G0/G1 arrest in ICCs by BXD treatment. Further, SCF and c-kit protein levels were detected to demonstrate that modulation of miR-451-5p by BXD treatment was involved in this signaling. CONCLUSIONS Through this study, we demonstrated that BXD could promote ICCs proliferation and inhibit apoptosis via miR-451-5p and may involve the modulations of SCF/c-kit signaling, thus suggesting a new therapy basis for GI motility dysfunction from the perspective of modulation of ICCs apoptosis by targeting miR-451-5p.
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Affiliation(s)
- Di Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, NO.11 North Third Ring Road East, Chaoyang District, Beijing, 100029, PR China.
| | - Ruimin Lu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, NO.11 North Third Ring Road East, Chaoyang District, Beijing, 100029, PR China.
| | - Mengwei Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, NO.11 North Third Ring Road East, Chaoyang District, Beijing, 100029, PR China.
| | - Jing Ji
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, NO.11 North Third Ring Road East, Chaoyang District, Beijing, 100029, PR China.
| | - Shujing Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, NO.11 North Third Ring Road East, Chaoyang District, Beijing, 100029, PR China.
| | - Shuyan Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, NO.11 North Third Ring Road East, Chaoyang District, Beijing, 100029, PR China.
| | - Dongmei Zhang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, No.5 Haiyuncang Road, Dongcheng District, Beijing, 101121, PR China.
| | - Meng Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, NO.11 North Third Ring Road East, Chaoyang District, Beijing, 100029, PR China.
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11
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López-Pingarrón L, Almeida H, Soria-Aznar M, Reyes-Gonzales MC, Rodríguez-Moratinos AB, Muñoz-Hoyos A, García JJ. Interstitial Cells of Cajal and Enteric Nervous System in Gastrointestinal and Neurological Pathology, Relation to Oxidative Stress. Curr Issues Mol Biol 2023; 45:3552-3572. [PMID: 37185756 PMCID: PMC10136929 DOI: 10.3390/cimb45040232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 05/17/2023] Open
Abstract
The enteric nervous system (ENS) is organized into two plexuses-submucosal and myenteric-which regulate smooth muscle contraction, secretion, and blood flow along the gastrointestinal tract under the influence of the rest of the autonomic nervous system (ANS). Interstitial cells of Cajal (ICCs) are mainly located in the submucosa between the two muscle layers and at the intramuscular level. They communicate with neurons of the enteric nerve plexuses and smooth muscle fibers and generate slow waves that contribute to the control of gastrointestinal motility. They are also involved in enteric neurotransmission and exhibit mechanoreceptor activity. A close relationship appears to exist between oxidative stress and gastrointestinal diseases, in which ICCs can play a prominent role. Thus, gastrointestinal motility disorders in patients with neurological diseases may have a common ENS and central nervous system (CNS) nexus. In fact, the deleterious effects of free radicals could affect the fine interactions between ICCs and the ENS, as well as between the ENS and the CNS. In this review, we discuss possible disturbances in enteric neurotransmission and ICC function that may cause anomalous motility in the gut.
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Affiliation(s)
- Laura López-Pingarrón
- Department of Pharmacology, Physiology and Legal and Forensic Medicine, Faculty of Medicine, University of Zaragoza, 50009 Zaragoza, Spain
| | - Henrique Almeida
- i3S-Instituto de Investigação e Inovação em Saúde, Porto University, 4200-135 Porto, Portugal
- Department of Biomedicine, Faculty of Medicine, Porto University, 4200-319 Porto, Portugal
- Department of Obstetrics and Gynecology, Hospital-CUF Porto, 4100-180 Porto, Portugal
| | - Marisol Soria-Aznar
- Department of Pharmacology, Physiology and Legal and Forensic Medicine, Faculty of Medicine, University of Zaragoza, 50009 Zaragoza, Spain
| | - Marcos C Reyes-Gonzales
- Department of Pharmacology, Physiology and Legal and Forensic Medicine, Faculty of Medicine, University of Zaragoza, 50009 Zaragoza, Spain
| | | | - Antonio Muñoz-Hoyos
- Department of Pediatrics, Faculty of Medicine, University of Granada, 18016 Granada, Spain
| | - Joaquín J García
- Department of Pharmacology, Physiology and Legal and Forensic Medicine, Faculty of Medicine, University of Zaragoza, 50009 Zaragoza, Spain
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12
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Tsymbalyuk OV, Davydovska TL, Naumenko AM, Voiteshenko IS, Veselsky SP, Nyporko AY, Pidhaietska AY, Kozolup MS, Skryshevsky VA. Mechanisms of regulation of motility of the gastrointestinal tract and the hepatobiliary system under the chronic action of nanocolloids. Sci Rep 2023; 13:3823. [PMID: 36882506 PMCID: PMC9992515 DOI: 10.1038/s41598-023-30958-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
Modern cutting edge technologies of chemical synthesis enable the production of unique nanostructures with excess energy and high reactivity. Uncontrolled use of such materials in the food industry and pharmacology entail a risk for the development of a nanotoxicity crisis. Using the methods of tensometry, mechanokinetic analysis, biochemical methods, and bioinformatics, the current study showed that chronic (for six months) intragastrical burdening of rats with aqueous nanocolloids (AN) ZnO and TiO2 caused violations of the pacemaker-dependent mechanisms of regulation of spontaneous and neurotransmitter-induced contractions of the gastrointestinal tract (GIT) smooth muscles (SMs), and transformed the contraction efficiency indices (AU, in Alexandria units). Under the same conditions, the fundamental principle of distribution of physiologically relevant differences in the numeric values of the mechanokinetic parameters of spontaneous SM contractions between different parts of GIT is violated, which can potentially cause its pathological changes. Using molecular docking, typical bonds in the interfaces of the interaction of these nanomaterials with myosin II, a component of the contractile apparatus of smooth muscle cells (SMC) were investigated. In this connection, the study addressed the question of possible competitive relations between ZnO and TiO2 nanoparticles and actin molecules for binding sites on the myosin II actin-interaction interface. In addition, using biochemical methods, it was shown that chronic long-term exposure to nanocolloids causes changes in the primary active ion transport systems of cell plasma membranes, the activity of marker liver enzymes and disrupts the blood plasma lipid profile, which indicates the hepatotoxic effect of these nanocolloids.
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Affiliation(s)
- Olga V Tsymbalyuk
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Tamara L Davydovska
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Anna M Naumenko
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Ivan S Voiteshenko
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Stanislav P Veselsky
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Alex Y Nyporko
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Anastasiia Y Pidhaietska
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine
| | - Mariya S Kozolup
- Department of Foreign Languages for Sciences, Ivan Franko National University of Lviv, 41 Doroshenko St., Lviv, 79000, Ukraine
| | - Valeriy A Skryshevsky
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv, 01033, Ukraine. .,Corporation Science Park, Taras Shevchenko University of Kyiv, 60, Volodymyrska Str., Kyiv, 01033, Ukraine.
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13
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Veličkov AI, Djordjević B, Lazarević M, Veličkov AV, Petrović V, Jović M, Denčić T, Radenković G. Distributions of Platelet-Derived Growth Factor Receptor-α Positive Cells and Interstitial Cells of Cajal in the Colon of Rats with Diabetes Mellitus Type 2. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59020308. [PMID: 36837509 PMCID: PMC9964132 DOI: 10.3390/medicina59020308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/23/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023]
Abstract
Background and Objectives: Diabetic gastroenteropathy (DG) is a common complication of diabetes mellitus type 2. Interstitial cells are non-neural cells of mesenchymal origin inserted between nerve elements and smooth muscle cells, necessary for normal function and peristaltic contractions in the gastrointestinal (GI) tract. There are at least two types of interstitial cells within the GI muscle layer-interstitial cells of Cajal (ICC) and interstitial platelet-derived growth factor receptor α-positive cells (IPC). The mechanism of diabetic gastroenteropathy is unclear, and interstitial cells disorders caused by metabolic changes in diabetes mellitus (DM) could explain the symptoms of DG (slow intestinal transit, constipation, fecal incontinence). The aim of this study was to identify PDGFRα and c-kit immunoreactive cells in the colon of rats with streptozotocin-nicotinamide-induced diabetes mellitus type 2, as well as to determine their distribution in relation to smooth muscle cells and enteric nerve structures. Materials and Methods: Male Wistar rats were used, and diabetes type 2 was induced by an intraperitoneal injection of streptozotocin, immediately after intraperitoneal application of nicotinamide. The colon specimens were exposed to PDGFRα and anti-c-kit antibodies to investigate interstitial cells; enteric neurons and smooth muscle cells were immunohistochemically labeled with NF-M and desmin antibodies. Results: Significant loss of the intramuscular ICC, myenteric ICC, and loss of their connection in intramuscular linear arrays and around the ganglion of the myenteric plexus were observed with no changes in nerve fiber distribution in the colon of rats with diabetes mellitus type 2. IPC were rarely present within the colon muscle layer with densely distributed PDGFRα+ cells in the colon mucosa and submucosa of both experimental groups. In summary, a decrease in intramuscular ICC, discontinuities and breakdown of contacts between myenteric ICC without changes in IPC and nerve fibers distribution were observed in the colon of streptozotocin/nicotinamide-induced diabetes type 2 rats.
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Affiliation(s)
- Aleksandra Ivana Veličkov
- Department of Histology and Embryology, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
- Correspondence:
| | - Branka Djordjević
- Department of Biochemistry, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
| | - Milica Lazarević
- Department of Histology and Embryology, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
| | - Asen Veselin Veličkov
- Clinic for Orthopedic Surgery and Traumatology, University Clinical Centre Niš, 18000 Niš, Serbia
| | - Vladimir Petrović
- Department of Histology and Embryology, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
| | - Marko Jović
- Department of Histology and Embryology, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
| | - Tijana Denčić
- Department of Pathology, Faculty of Medicine, Clinical Centre Niš, University of Niš, 18000 Niš, Serbia
| | - Goran Radenković
- Department of Histology and Embryology, Faculty of Medicine, University of Niš, 18000 Niš, Serbia
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14
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Kim JE, Seol A, Choi YJ, Lee SJ, Jin YJ, Roh YJ, Song HJ, Hong JT, Hwang DY. Similarities and differences in constipation phenotypes between Lep knockout mice and high fat diet-induced obesity mice. PLoS One 2022; 17:e0276445. [PMID: 36548335 PMCID: PMC9778951 DOI: 10.1371/journal.pone.0276445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 10/06/2022] [Indexed: 12/24/2022] Open
Abstract
CRISPR-Cas9-mediated leptin (Lep) knockout (KO) mice exhibited prominent phenotypes for constipation, even though they were not compared with other model animals. This study compared the stool excretion, gastrointestinal motility, histological structure, mucin secretion, and enteric nerve function in Lep KO and high fat diet (HFD)-treated mice to determine if there were differences in their phenotypes for constipation. Most obesity phenotypes, including fat weight, adipocyte size, expression of lipolytic proteins (HSL, perilipin, and ATGL), and glucose concentrations, were detected similarly in the Lep KO and HFD-treated mice. They showed a similar decrease in the excretion parameters, including the stool number, weight, and water content, while the same pattern was detected in the gastrointestinal motility and intestinal length. A similar decrease in the mucosal layer thickness, muscle thickness, ability for mucin secretion, and expression of water channel (aquaporin 3 and 8) genes was detected in the mid-colon of the Lep KO and HFD-treated mice, but the alteration rate in some levels was greater in the HFD-treated group than the Lep KO mice. On the other hand, the levels of c-kit, nNOS, NSE, and PGP9.5 expression for the enteric neurons and intestitial cells of Cajal (ICC) were remarkably lower in the mid-colon of the HFD-treated mice than in the Lep KO mice, but the level of most proteins in both groups remained lower than those in the control group. A similar alteration pattern in the expression of muscarinic acetylcholine receptors (mAChRs) and serotonin receptors was detected in the Lep KO and HFD-treated mice. These results suggest that most phenotypes for obesity-induced constipation were similarly detected in the Lep KO and HFD-treated mice, but there was a difference in the regulatory function of the enteric nervous system (ENS).
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Affiliation(s)
- Ji Eun Kim
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources & Life Science, Pusan National University, Miryang, Korea
| | - Ayun Seol
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources & Life Science, Pusan National University, Miryang, Korea
| | - Yun Ju Choi
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources & Life Science, Pusan National University, Miryang, Korea
| | - Su Jin Lee
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources & Life Science, Pusan National University, Miryang, Korea
| | - You Jeong Jin
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources & Life Science, Pusan National University, Miryang, Korea
| | - Yu Jeong Roh
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources & Life Science, Pusan National University, Miryang, Korea
| | - Hee Jin Song
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources & Life Science, Pusan National University, Miryang, Korea
| | - Jin Tae Hong
- College of Pharmacy, Chungbuk National University, Chungju, Korea
| | - Dae Youn Hwang
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources & Life Science, Pusan National University, Miryang, Korea
- Life and Industry Convergence Research Institute/Laboratory Animal Resources Center, College of Natural Resources & Life Science, Pusan National University, Miryang, Korea
- * E-mail:
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15
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Gastrointestinal stromal tumor (GIST) presenting as a multilocular cystic intra-abdominal mass in a dog. BMC Vet Res 2022; 18:415. [DOI: 10.1186/s12917-022-03504-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/03/2022] [Indexed: 11/28/2022] Open
Abstract
Abstract
Background
Gastrointestinal stromal tumor (GIST) is a malignant mesenchymal neoplasm described in humans, dogs, and cats. A hallmark of diagnosis for GISTs is positive immunohistochemical labelling with c-Kit (CD117). The differentiation of GIST from other mesenchymal neoplasms of the gastrointestinal tract is pivotal to allow for initiation of appropriate treatment. In humans, cystic GIST has been described, though this has not been reported in dogs. In humans, the cystic form of GIST has been associated with a favorable prognosis. In the present paper, we report a case of multilocular cystic GIST in a dog, which has not previously been described in this species.
Case presentation
A ten-year-old, male-entire Maltese terrier mix breed dog presented with a large cystic mural mass of the duoedenum and orad jejunum. Histopathology and positive immunohistochemical staining with CD117 confirmed a diagnosis of GIST. No evidence of metastasis was detected on routine staging with abdominal sonography and thoracic radiography at the time of diagnosis. Surgical resection was performed and toceranib therapy was initiated post-operatively. Metastasis was documented 251 days after surgery on computed tomography. Due to clinical deterioration, the patient was humanely euthanised 370 days after surgical excision.
Conclusions
There are few differential diagnoses for large multilocular cystic intra-abdominal masses in dogs. This case presents a previously undescribed presentation of gastrointestinal stromal tumor in the dog as a predominantly multilocular cystic mass. It remains unclear if the cystic form of GIST may represent a favorable prognosis in dogs.
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16
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Monti A, Porciello G, Panasiti MS, Aglioti SM. Gut markers of bodily self-consciousness in men. iScience 2022; 25:105061. [PMID: 36185370 PMCID: PMC9519469 DOI: 10.1016/j.isci.2022.105061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 04/20/2022] [Accepted: 08/30/2022] [Indexed: 11/28/2022] Open
Abstract
Bodily self-consciousness, the state of mind that allows humans to be aware of their own body, forms the backdrop for almost every human experience, yet its underpinnings remain elusive. Here we combine an ingestible, minimally invasive capsule with surface electrogastrography to probe if gut physiology correlates with bodily self-consciousness in a sample of healthy men during a virtual bodily illusion. We discover that specific patterns of stomach and bowel activity (temperature, pressure, and pH) covary with specific facets of bodily self-consciousness (feelings of body location, agency, and disembodiment). These results uncover the hitherto untapped potential of minimally invasive probes to study the link between mental and gut states and show the significance of deep visceral organs in the self-conscious perception of ourselves as embodied beings. We studied the gastrointestinal (GI) underpinnings of bodily self-consciousness An ingestible pill tracked how GI parameters change during a bodily illusion GI activity was generally correlated with higher embodiment and lower disembodiment Gut plays a significant role in how our self embodies entities such as avatars
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Affiliation(s)
- Alessandro Monti
- Sapienza, Università di Roma and Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
- Corresponding author
| | - Giuseppina Porciello
- IRCCS Fondazione Santa Lucia research hospital, 00179 Rome, Italy
- Department of Psychology, Sapienza, Università di Roma, 00185 Rome, Italy
| | - Maria Serena Panasiti
- IRCCS Fondazione Santa Lucia research hospital, 00179 Rome, Italy
- Department of Psychology, Sapienza, Università di Roma, 00185 Rome, Italy
| | - Salvatore M. Aglioti
- Sapienza, Università di Roma and Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia (IIT), 00161 Rome, Italy
- IRCCS Fondazione Santa Lucia research hospital, 00179 Rome, Italy
- Corresponding author
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17
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Srougi V, Bandeira RASDT, Reis ST, dos Santos GA, Andrade HDS, Leite KRM, Hamilton-Cho D, Mitre AI, Arap MA, Srougi M, Duarte RJ. The influence of interstitial cells of Cajal density in the outcomes of pyeloplasty in adults: A prospective analysis. Urologia 2022; 90:30-35. [PMID: 35765765 DOI: 10.1177/03915603221107470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose: To evaluate if the density of interstitial cells of Cajal (ICC) in the ureteropelvic junction (UPJ) influences the outcomes of pyeloplasty in adults. Methods: Twenty-three patients with the diagnosis of ureteropelvic junction obstruction (UPJO) that underwent laparoscopic dismembered pyeloplasty were included. ICC density was measured using immunohistochemistry reaction for c-KIT expression in the resected UPJ segment. Pyeloplasty outcome was evaluated by patient self-report pain, urinary outflow using DTPA renogram and hydronephrosis assessment using ultrasound (US) at 12 months of follow-up. A logistic regression analysis was performed to assess the association of pyeloplasty outcomes and ICC density. Results: Low, moderate, and high ICC density were present in 17.4%, 30.4%, and 52.2% of the patients, respectively. Complete pain resolution was observed in 100%, 85.7%, and 75% of patients with low, moderate and high ICC density, respectively ( p = 0.791). DTPA renogram improved in 75%, 85.7%, and 91.7% of patients with low, moderate and high ICC density, respectively ( p = 0.739). Hydronephrosis improved in 25%, 85.7%, and 91.7% of patients with low, moderate and high ICC density, respectively ( p = 0.032). Conclusions: Patients with high ICC density have a significant amelioration of hydronephrosis after pyeloplasty. However, ICC density is not associated with functional outcomes.
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Affiliation(s)
- Victor Srougi
- Division of Urology, University of Sao Paulo Medical School, Sao Paulo, Brazil
- Hospital Moriah, Sao Paulo, Brazil
| | | | - Sabrina Thalita Reis
- Division of Urology, University of Sao Paulo Medical School, Sao Paulo, Brazil
- Minas Gerais State University (UEMG), Campos Passos, Brazil
- Laboratory of Medical Investigation (LIM55), Urology Department, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Gabriel Arantes dos Santos
- Laboratory of Medical Investigation (LIM55), Urology Department, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
- D’Or Institute for Research and Education (IDOR), Sao Paulo, Brazil
| | | | - Katia Ramos Moreira Leite
- Division of Urology, University of Sao Paulo Medical School, Sao Paulo, Brazil
- Laboratory of Medical Investigation (LIM55), Urology Department, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - David Hamilton-Cho
- Division of Urology, University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - Anuar Ibrahim Mitre
- Division of Urology, University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - Marco Antonio Arap
- Division of Urology, University of Sao Paulo Medical School, Sao Paulo, Brazil
- Hospital Sirio Libanes, Sao Paulo, Brazil
| | - Miguel Srougi
- Division of Urology, University of Sao Paulo Medical School, Sao Paulo, Brazil
- Laboratory of Medical Investigation (LIM55), Urology Department, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
- D’Or Institute for Research and Education (IDOR), Sao Paulo, Brazil
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Dysregulation of the Enteric Nervous System in the Mid Colon of Complement Component 3 Knockout Mice with Constipation Phenotypes. Int J Mol Sci 2022; 23:ijms23126862. [PMID: 35743302 PMCID: PMC9225043 DOI: 10.3390/ijms23126862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 06/16/2022] [Accepted: 06/18/2022] [Indexed: 02/01/2023] Open
Abstract
Complement component 3 (C3) contributes to neurogenesis, neural migration, and synaptic elimination under normal and disease conditions of the brain, even though it has not been studied in the enteric nervous system (ENS). To determine the role of C3 in the regulatory mechanism of ENS during C3 deficiency-induced constipation, the changes in the markers of neuronal and interstitial cells of Cajal (ICCs), the markers for excitatory and inhibitory transmission of ENS, and expression of C3 receptors were analyzed in the mid colon of C3 knockout (KO) mice at 16 weeks of age. Prominent constipation phenotypes, including the decrease in stool parameters, changes in the histological structure, and suppression of mucin secretion, were detected in C3 KO mice compared to wildtype (WT) mice. The expression levels of the neuron specific enolase (NSE), protein gene product 9.5 (PGP9.5), and C-kit markers for myenteric neurons and ICCs were lower in the mid colon of C3 KO mice than WT mice. Excitatory transmission analysis revealed similar suppression of the 5-hydroxytryptamine (5-HT) concentration, expression of 5-HT receptors, acetylcholine (ACh) concentration, ACh esterase (AChE) activity, and expression of muscarinic ACh receptors (mAChRs), despite the mAChRs downstream signaling pathway being activated in the mid colon of C3 KO mice. In inhibitory transmission analysis, C3 KO mice showed an increase in the nitric oxide (NO) concentration and inducible nitric oxide synthase (iNOS) expression, while neuronal NOS (nNOS) expression, cholecystokinin (CCK), and gastrin concentration were decreased in the same mice. Furthermore, the levels of C3a receptor (C3aR) and C3bR expression were enhanced in the mid colon of C3 KO mice compared to the WT mice during C3 deficiency-induced constipation. Overall, these results indicate that a dysregulation of the ENS may play an important role in C3 deficiency-induced constipation in the mid colon of C3 KO mice.
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Wang L, Yuan PQ, Challis C, Ravindra Kumar S, Taché Y. Transduction of Systemically Administered Adeno-Associated Virus in the Colonic Enteric Nervous System and c-Kit Cells of Adult Mice. Front Neuroanat 2022; 16:884280. [PMID: 35734536 PMCID: PMC9207206 DOI: 10.3389/fnana.2022.884280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/19/2022] [Indexed: 11/13/2022] Open
Abstract
Systemic delivery of adeno-associated virus (AAV) vectors transduces the enteric nervous system. However, less is known on the mapping and morphological and neurochemical characterization in the adult mouse colon. We used AAV9-CAG-GFP (AAV9) and AAV-PHP.S-hSyn1-tdTomato farnesylated (PHP.S-tdTf) to investigate the segmental distribution, morphologies and neurochemical coding of the transduction. The vectors were retro-orbitally injected in male and female adult mice, and 3 weeks later, the colon was prepared for microcopy with or without immunohistochemistry for neuronal and non-neuronal markers. In contrast to the distributions in neonatal and juvenile rodents, the AAV transduction in neurons and/or nerve fibers was the highest in the proximal colon, decreased gradually in the transverse, and was sparse in the distal colon without difference between sexes. In the proximal colon, the AAV9-transduced myenteric neurons were unevenly distributed. The majority of enteric neurons did not have AAV9 expression in their processes, except those with big soma with or without variously shaped dendrites, and a long axon. Immunolabeling demonstrated that about 31% neurons were transduced by AAV9, and the transduction was in 50, 28, and 31% of cholinergic, nitrergic, and calbindin-positive myenteric neurons, respectively. The nerve fiber markers, calcitonin gene-related peptide alpha, tyrosine hydroxylase or vasoactive intestinal polypeptide co-localized with AAV9 or PHP.S-tdTf in the mucosa, and rarely in the myenteric plexus. Unexpectedly, AAV9 expression appeared also in a few c-Kit immunoreactive cells among the heavily populated interstitial cells of Cajal (ICC). In the distal colon, the AAV transduction appeared in a few nerve fibers mostly the interganglionic strands. Other types of AAV9 and AAV-PHP vectors induced a similar colonic segmental difference which is not colon specific since neurons were transduced in the small intestine and gastric antrum, while little in the gastric corpus and none in the lower esophagus. Conclusion These findings demonstrate that in adult mice colon that there is a rostro-caudal decrease in the transduction of systemic delivery of AAV9 and its variants independent of sex. The characterization of AAV transduction in the proximal colon in cholinergic and nitrergic myenteric neurons along with a few ICC suggests implications in circuitries regulating motility.
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Affiliation(s)
- Lixin Wang
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, CURE/Digestive Diseases Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, United States
| | - Pu-Qing Yuan
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, CURE/Digestive Diseases Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, United States
| | - Collin Challis
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Sripriya Ravindra Kumar
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Yvette Taché
- Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, CURE/Digestive Diseases Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, United States
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20
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Jeong B, Sung TS, Jeon D, Park KJ, Jun JY, So I, Hong C. Inhibition of TRPC4 channel activity in colonic myocytes by tricyclic antidepressants disrupts colonic motility causing constipation. J Cell Mol Med 2022; 26:4911-4923. [PMID: 35560982 PMCID: PMC9549500 DOI: 10.1111/jcmm.17348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 11/27/2022] Open
Abstract
Tricyclic antidepressants (TCAs) have been used to treat depression and were recently approved for treating irritable bowel syndrome (IBS) patients with severe or refractory IBS symptoms. However, the molecular mechanism of TCA action in the gastrointestinal (GI) tract remains poorly understood. Transient receptor potential channel canonical type 4 (TRPC4), which is a Ca2+‐permeable nonselective cation channel, is a critical regulator of GI excitability. Herein, we investigated whether TCA modulates TRPC4 channel activity and which mechanism in colonic myocytes consequently causes constipation. To prove the clinical benefit in patients with diarrhoea caused by TCA treatment, we performed mechanical tension recording of repetitive motor pattern (RMP) in segment, electric field stimulation (EFS)‐induced and spontaneous contractions in isolated muscle strips. From these recordings, we observed that all TCA compounds significantly inhibited contractions of colonic motility in human. To determine the contribution of TRPC4 to colonic motility, we measured the electrical activity of heterologous or endogenous TRPC4 by TCAs using the patch clamp technique in HEK293 cells and murine colonic myocytes. In TRPC4‐overexpressed HEK cells, we observed TCA‐evoked direct inhibition of TRPC4. Compared with TRPC4‐knockout mice, we identified that muscarinic cationic current (mIcat) was suppressed through TRPC4 inhibition by TCA in isolated murine colonic myocytes. Collectively, we suggest that TCA action is responsible for the inhibition of TRPC4 channels in colonic myocytes, ultimately causing constipation. These findings provide clinical insights into abnormal intestinal motility and medical interventions aimed at IBS therapy.
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Affiliation(s)
- Byeongseok Jeong
- Department of Physiology, Chosun University School of Medicine, Gwangju, South Korea
| | - Tae Sik Sung
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea.,Biomedical Research Institute, Seoul National University Hospital, Seoul, South Korea
| | - Dongju Jeon
- Department of Physiology, Chosun University School of Medicine, Gwangju, South Korea
| | - Kyu Joo Park
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Jae Yeoul Jun
- Department of Physiology, Chosun University School of Medicine, Gwangju, South Korea
| | - Insuk So
- Department of Physiology and Institute of Dermatological Science, Seoul National University College of Medicine, Seoul, South Korea
| | - Chansik Hong
- Department of Physiology, Chosun University School of Medicine, Gwangju, South Korea
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21
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New treatment strategies for advanced-stage gastrointestinal stromal tumours. Nat Rev Clin Oncol 2022; 19:328-341. [PMID: 35217782 DOI: 10.1038/s41571-022-00606-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2022] [Indexed: 02/06/2023]
Abstract
When gastrointestinal stromal tumour (GIST), the most common form of sarcoma, was first recognized as a distinct pathological entity in the 1990s, patients with advanced-stage disease had a very poor prognosis owing to a lack of effective medical therapies. The discovery of KIT mutations as the first and most prevalent drivers of GIST and the subsequent development of the first KIT tyrosine kinase inhibitor (TKI), imatinib, revolutionized the treatment of patients with this disease. We can now identify the driver mutation in 99% of patients with GIST via molecular diagnostic testing, and therapies have been developed to treat many, but not all, molecular subtypes of the disease. At present, seven drugs are approved by the FDA for the treatment of advanced-stage GIST (imatinib, sunitinib, regorafenib, ripretinib, avapritinib, larotrectinib and entrectinib), all of which are TKIs. Although these agents can be very effective for treating certain GIST subtypes, challenges remain and new therapeutic approaches are needed. In this Review, we discuss the molecular subtypes of GIST and the evolution of current treatments, as well as their therapeutic limitations. We also highlight emerging therapeutic approaches that might overcome clinical challenges through novel strategies predicated on the biological features of the distinct GIST molecular subtypes.
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22
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Kiplang’at KP, Boldizsár I, Dobolyi A, Varró P. Effects of dibenzylbutyrolactone lignans arctigenin and trachelogenin on the motility of isolated rat ileum. Toxicol Rep 2022; 9:1222-1232. [DOI: 10.1016/j.toxrep.2022.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 05/06/2022] [Accepted: 05/24/2022] [Indexed: 11/15/2022] Open
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23
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Liu H, Santanello A, Jimenez M, Kumthekar N. Jejunal Gastrointestinal Stromal Tumor (GIST) as a Rare Cause of GI Bleed: A Case Report. Cureus 2022; 14:e24272. [PMID: 35607565 PMCID: PMC9123355 DOI: 10.7759/cureus.24272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2022] [Indexed: 11/22/2022] Open
Abstract
Jejunal gastrointestinal stromal tumor (GIST) is a rare cause of recurrent gastrointestinal bleeding (GIB). Early diagnosis for patients with jejunal GIST is often challenging, which can lead to delays in treatment. We present a case of a 32-year-old male patient with persistent abdominal pain and hematemesis despite treatment for gastroesophageal reflux disease (GERD). Upon initial ER visit, CT result was consistent with intra-abdominal abscess and the patient underwent interventional radiology (IR) drainage. On a second ER visit three weeks later, CT showed a suspicious lesion in the small bowel. The patient underwent exploratory laparoscopy which revealed a mass in the jejunum. The lesion was resected successfully and pathology report confirmed the diagnosis of GIST with positive immunohistochemistry marker cluster of differentiation (CD)117. The patient was discharged with no complications post-operatively. In conclusion, recurrent GIB and unusual imaging findings should raise clinical suspicion for alternative causes for GIB, including tumors such as GIST.
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24
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Kongdang P, Pruksakorn D, Koonrungsesomboon N. Preclinical experimental models for assessing laxative activities of substances/products under investigation: a scoping review of the literature. Am J Transl Res 2022; 14:698-717. [PMID: 35273679 PMCID: PMC8902583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Constipation is a common gastrointestinal problem worldwide. Its impact on health can range from an unpleasant problem to being seriously troublesome. When lifestyle modification fails to deal with constipation, laxatives are the mainstay of therapy. There are several types of laxatives currently available; however, there still remains a need for better laxatives because certain currently available laxatives are not appropriate for or accessible to some patients. Preclinical experiments to study the laxative potential of substances/products of interest are vital to improving that situation. The selection of appropriate experimental models for assessing the laxative activities of substances/products under investigation is crucial to achieving valid and meaningful results. This article provides a scoping review of the literature, outlining, and summarizing models currently being used in preclinical experiments assessing the laxative activities of substances/products under investigation. The review includes both screening models, e.g., the isolated organ bath system, in vivo fecal assessment and intestinal transit assay, and confirmation models, e.g., in vivo constipation models. Chemical substances/drugs used to induce constipation in in vivo constipation models, e.g., loperamide, diphenoxylate, montmorillonite, and clonidine, as well as standard laxative agents used as a positive control in experimental models, e.g., bisacodyl, carbachol, lactulose, sodium picosulfate, castor oil, phenolphthalein, and yohimbine, are described in detail. The purpose of this article is to assist researchers in the design and implementation of preclinical experimental models for assessing laxative activities of substances/products under investigation to achieve valid and meaningful preclinical results prior to experimentation in humans.
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Affiliation(s)
- Patiwat Kongdang
- Musculoskeletal Science and Translational Research (MSTR) Center, Faculty of Medicine, Chiang Mai UniversityChiang Mai, Thailand
| | - Dumnoensun Pruksakorn
- Musculoskeletal Science and Translational Research (MSTR) Center, Faculty of Medicine, Chiang Mai UniversityChiang Mai, Thailand
- Center of Multidisciplinary Technology for Advanced Medicine (CMUTEAM), Faculty of Medicine, Chiang Mai UniversityChiang Mai, Thailand
- Biomedical Engineering Institute, Chiang Mai UniversityChiang Mai, Thailand
| | - Nut Koonrungsesomboon
- Musculoskeletal Science and Translational Research (MSTR) Center, Faculty of Medicine, Chiang Mai UniversityChiang Mai, Thailand
- Department of Pharmacology, Faculty of Medicine, Chiang Mai UniversityChiang Mai, Thailand
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25
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Rosa AC, Nardini P, Sgambellone S, Gurrieri M, Spampinato SF, Dell’Accio A, Chazot PL, Obara I, Liu WL, Pini A. CNS-Sparing Histamine H3 Receptor Antagonist as a Candidate to Prevent the Diabetes-Associated Gastrointestinal Symptoms. Biomolecules 2022; 12:biom12020184. [PMID: 35204685 PMCID: PMC8961615 DOI: 10.3390/biom12020184] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/12/2022] [Accepted: 01/20/2022] [Indexed: 12/11/2022] Open
Abstract
Among the histamine receptors, growing evidence points to the histamine H3 receptor as a pharmacological candidate to counteract the autonomic neuropathy associated with diabetes. The study aimed to evaluate the effect of PF00868087 (also known as ZPL-868), a CNS-sparing histamine H3 receptor antagonist, on the autonomic neuropathy of the intestinal tract associated with diabetes. Diabetes was induced in male BALB/c mice by a single high dose of streptozotocin (150 mg/kg). Colorectal specimens from control and diabetic mice, randomized to vehicle or PF0086087 (10, 30, 100 mg/kg/day by oral gavage for 14 days), were processed for morphological and immunohistochemical analysis. A significant overproduction of mucus in the intestinal mucosa of diabetic mice compared to the controls was observed. PF0086087 at the highest dose prevented mucin overproduction. The immunohistochemistry analysis demonstrated that diabetes causes a decrease in the inhibitory component of enteric motility, measured as the percentage of neuronal nitric oxide synthase-positive neurons (p < 0.05) and a parallel increase in the excitatory component evaluated as substance P-positive fibres (p < 0.01). PF0086087 dose-dependently prevented these pathophysiological events. In conclusion, PF0086087 may be an essential tool in preventing nitrergic dysfunction in the myenteric plexus of the distal colon and diabetes-induced gastrointestinal complications.
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Affiliation(s)
- Arianna Carolina Rosa
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy;
- Correspondence: (A.C.R.); (A.P.); Tel.: +39-0116707955 (A.C.R.); +39-0552758155 (A.P.)
| | - Patrizia Nardini
- Department of Clinical and Experimental Medicine, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy; (P.N.); (M.G.); (A.D.)
| | - Silvia Sgambellone
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Pharmacology and Toxicology Section, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy;
| | - Maura Gurrieri
- Department of Clinical and Experimental Medicine, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy; (P.N.); (M.G.); (A.D.)
| | - Simona Federica Spampinato
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy;
| | - Alfonso Dell’Accio
- Department of Clinical and Experimental Medicine, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy; (P.N.); (M.G.); (A.D.)
| | - Paul L Chazot
- School of Biological and Biomedical Science, Durham University, Durham DH1 3LE, UK;
| | - Ilona Obara
- School of Pharmacy and Translational and Clinical Research Institute, King George VI Building, Newcastle University, Newcastle-upon-Tyne NE1 7RU, UK;
| | - Wai L Liu
- Liu & Co Consulting Limited, Whitstable CT5 3RF, UK;
| | - Alessandro Pini
- Department of Clinical and Experimental Medicine, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy; (P.N.); (M.G.); (A.D.)
- Correspondence: (A.C.R.); (A.P.); Tel.: +39-0116707955 (A.C.R.); +39-0552758155 (A.P.)
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26
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Choi NR, Kim JN, Kwon MJ, Lee JR, Kim SC, Lee MJ, Choi WG, Kim BJ. Grape seed powder increases gastrointestinal motility. Int J Med Sci 2022; 19:941-951. [PMID: 35693751 PMCID: PMC9149643 DOI: 10.7150/ijms.72529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/17/2022] [Indexed: 11/05/2022] Open
Abstract
Grape seed is an important natural bioactive product with various health benefits. Interstitial cells of Cajal (ICCs) are pacemaker cells in the gastrointestinal (GI) tract. The present study investigated the effects of grape seed powder (GSP) on ICC properties and GI motility. GSP depolarized the pacemaker potentials of ICCs in a dose‑dependent manner. Y25130 or SB269970 slightly inhibited GSP‑induced effects. However, Y25130 and SB269970 together completely blocked GSP-induced effects. In the presence of inhibitors of protein kinase C, protein kinase A, or mitogen-activated protein kinase, GSP‑induced ICC depolarization was inhibited. GSP increased the intestinal transit rate in normal mice and in mice with acetic acid-induced GI motility disorder. In addition, the levels of motilin and substance P were elevated after GSP dosing. These results demonstrate that GSP can regulate GI motility, and therefore, it is a potential therapeutic agent for treating GI motility disorders.
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Affiliation(s)
- Na Ri Choi
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
| | - Jeong Nam Kim
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
| | - Min Ji Kwon
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
| | - Jong Rok Lee
- Department of Pharmaceutical Engineering, Daegu Haany University, Gyeongsan 38610, Republic of Korea
| | - Sang Chan Kim
- College of Oriental Medicine, Daegu Haany University, Gyeongsan 38610, Republic of Korea
| | - Min Jae Lee
- College of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Woo-Gyun Choi
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
| | - Byung Joo Kim
- Division of Longevity and Biofunctional Medicine, Pusan National University School of Korean Medicine, Yangsan 50612, Republic of Korea
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27
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OUP accepted manuscript. Pathog Dis 2022; 80:6521441. [DOI: 10.1093/femspd/ftac003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/30/2021] [Accepted: 02/01/2022] [Indexed: 11/15/2022] Open
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28
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Chen Y, Zhang S, Li Y, Yan H, Ba Y, Wang X, Shi N, Liu C. Gastric Electrical Stimulation Increases the Proliferation of Interstitial Cells of Cajal and Alters the Enteric Nervous System in Diabetic Rats. Neuromodulation 2022; 25:1106-1114. [DOI: 10.1016/j.neurom.2021.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 09/14/2021] [Accepted: 09/20/2021] [Indexed: 11/26/2022]
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29
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Ahmed MA, Venugopal S, Jung R. Engaging biological oscillators through second messenger pathways permits emergence of a robust gastric slow-wave during peristalsis. PLoS Comput Biol 2021; 17:e1009644. [PMID: 34871315 PMCID: PMC8675931 DOI: 10.1371/journal.pcbi.1009644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 12/16/2021] [Accepted: 11/15/2021] [Indexed: 11/19/2022] Open
Abstract
Peristalsis, the coordinated contraction—relaxation of the muscles of the stomach is important for normal gastric motility and is impaired in motility disorders. Coordinated electrical depolarizations that originate and propagate within a network of interconnected layers of interstitial cells of Cajal (ICC) and smooth muscle (SM) cells of the stomach wall as a slow-wave, underly peristalsis. Normally, the gastric slow-wave oscillates with a single period and uniform rostrocaudal lag, exhibiting network entrainment. Understanding of the integrative role of neurotransmission and intercellular coupling in the propagation of an entrained gastric slow-wave, important for understanding motility disorders, however, remains incomplete. Using a computational framework constituted of a novel gastric motility network (GMN) model we address the hypothesis that engaging biological oscillators (i.e., ICCs) by constitutive gap junction coupling mechanisms and enteric neural innervation activated signals can confer a robust entrained gastric slow-wave. We demonstrate that while a decreasing enteric neural innervation gradient that modulates the intracellular IP3 concentration in the ICCs can guide the aboral slow-wave propagation essential for peristalsis, engaging ICCs by recruiting the exchange of second messengers (inositol trisphosphate (IP3) and Ca2+) ensures a robust entrained longitudinal slow-wave, even in the presence of biological variability in electrical coupling strengths. Our GMN with the distinct intercellular coupling in conjunction with the intracellular feedback pathways and a rostrocaudal enteric neural innervation gradient allows gastric slow waves to oscillate with a moderate range of frequencies and to propagate with a broad range of velocities, thus preventing decoupling observed in motility disorders. Overall, the findings provide a mechanistic explanation for the emergence of decoupled slow waves associated with motility impairments of the stomach, offer directions for future experiments and theoretical work, and can potentially aid in the design of new interventional pharmacological and neuromodulation device treatments for addressing gastric motility disorders. The coordinated contraction and relaxation of the muscles of the stomach, known as peristalsis is important for normal gastric motility and primarily governed by electrical depolarizations that originate and propagate within a network of interconnected layers of interstitial cells of Cajal (ICCs) and smooth muscle cells of the stomach wall as a slow-wave. Under normal conditions, a gastric slow-wave oscillates with a single period and uniform rostrocaudal lag, exhibiting network entrainment. However, the understanding of intrinsic and extrinsic mechanisms that ensure propagation of a robust entrained slow-wave remains incomplete. Here, using a computational framework, we show that in conjunction with an enteric neural innervation gradient along the rostrocaudal ICC chain, and intercellular electrical coupling, the intercellular exchange of inositol trisphosphate between ICCs prevents decoupling by extending the longitudinal entrainment range along the stomach wall, even when variability in intercellular coupling exists. The findings from our study indicate ways that ensure the rostrocaudal spread of a robust gastric slow-wave and provide a mechanistic explanation for the emergence of decoupled slow waves associated with motility impairments of the stomach.
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Affiliation(s)
- Md Ashfaq Ahmed
- Department of Biomedical Engineering, Florida International University, Miami, Florida, United States of America
| | - Sharmila Venugopal
- Integrative Biology and Physiology, University of California Los Angeles, Los Angeles, California, United States of America
- * E-mail: (SV); (RJ)
| | - Ranu Jung
- Department of Biomedical Engineering, Florida International University, Miami, Florida, United States of America
- * E-mail: (SV); (RJ)
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30
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Xu J, Cai S, Zhao J, Xu K, Ji H, Wu C, Xiao J, Wu Y. Advances in the Relationship Between Pyroptosis and Diabetic Neuropathy. Front Cell Dev Biol 2021; 9:753660. [PMID: 34712670 PMCID: PMC8545826 DOI: 10.3389/fcell.2021.753660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/14/2021] [Indexed: 12/28/2022] Open
Abstract
Pyroptosis is a novel programmed cell death process that promotes the release of interleukin-1β (IL-1β) and interleukin-18 (IL-18) by activating inflammasomes and gasdermin D (GSDMD), leading to cell swelling and rupture. Pyroptosis is involved in the regulation of the occurrence and development of cardiovascular and cerebrovascular diseases, tumors, and nerve injury. Diabetes is a metabolic disorder characterized by long-term hyperglycemia, insulin resistance, and chronic inflammation. The people have paid more and more attention to the relationship between pyroptosis, diabetes, and its complications, especially its important regulatory significance in diabetic neurological diseases, such as diabetic encephalopathy (DE) and diabetic peripheral neuropathy (DPN). This article will give an in-depth overview of the relationship between pyroptosis, diabetes, and its related neuropathy, and discuss the regulatory pathway and significance of pyroptosis in diabetes-associated neuropathy.
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Affiliation(s)
- Jingyu Xu
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Shufang Cai
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Jiaxin Zhao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Ke Xu
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Hao Ji
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Chengbiao Wu
- Clinical Research Center, Affiliated Xiangshan Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jian Xiao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Yanqing Wu
- Engineering Laboratory of Zhejiang Province for Pharmaceutical Development of Growth Factors, Biomedical Collaborative Innovation Center of Wenzhou, The Institute of Life Sciences, Wenzhou University, Wenzhou, China
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31
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Abadi AJ, Mirzaei S, Mahabady MK, Hashemi F, Zabolian A, Hashemi F, Raee P, Aghamiri S, Ashrafizadeh M, Aref AR, Hamblin MR, Hushmandi K, Zarrabi A, Sethi G. Curcumin and its derivatives in cancer therapy: Potentiating antitumor activity of cisplatin and reducing side effects. Phytother Res 2021; 36:189-213. [PMID: 34697839 DOI: 10.1002/ptr.7305] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/03/2021] [Accepted: 09/25/2021] [Indexed: 12/12/2022]
Abstract
Curcumin is a phytochemical isolated from Curcuma longa with potent tumor-suppressor activity, which has shown significant efficacy in pre-clinical and clinical studies. Curcumin stimulates cell death, triggers cycle arrest, and suppresses oncogenic pathways, thereby suppressing cancer progression. Cisplatin (CP) stimulates DNA damage and apoptosis in cancer chemotherapy. However, CP has adverse effects on several organs of the body, and drug resistance is frequently observed. The purpose of the present review is to show the function of curcumin in decreasing CP's adverse impacts and improving its antitumor activity. Curcumin administration reduces ROS levels to prevent apoptosis in normal cells. Furthermore, curcumin can inhibit inflammation via down-regulation of NF-κB to maintain the normal function of organs. Curcumin and its nanoformulations can reduce the hepatoxicity, neurotoxicity, renal toxicity, ototoxicity, and cardiotoxicity caused by CP. Notably, curcumin potentiates CP cytotoxicity via mediating cell death and cycle arrest. Besides, curcumin suppresses the STAT3 and NF-ĸB as tumor-promoting pathways, to enhance CP sensitivity and prevent drug resistance. The targeted delivery of curcumin and CP to tumor cells can be mediated nanostructures. In addition, curcumin derivatives are also able to reduce CP-mediated side effects, and increase CP cytotoxicity against various cancer types.
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Affiliation(s)
- Asal Jalal Abadi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sepideh Mirzaei
- Department of Biology, Faculty of Science, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Mahmood Khaksary Mahabady
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Farid Hashemi
- Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Amirhossein Zabolian
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Fardin Hashemi
- School of Rehabilitation, Department of Physical Therapy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Pourya Raee
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shahin Aghamiri
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Milad Ashrafizadeh
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Tuzla, Turkey.,Sabanci University Nanotechnology Research and Application Center (SUNUM), Istanbul, Turkey
| | - Amir Reza Aref
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA.,Vice President at Translational Sciences, Xsphera Biosciences Inc, Boston, Massachusetts, USA
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa.,Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Istanbul, Turkey.,Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Sariyer, Istanbul, Turkey
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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32
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Zhang Y, Lu T, Dong Y, Chen Y, Chen JDZ. Auricular vagal nerve stimulation enhances gastrointestinal motility and improves interstitial cells of Cajal in rats treated with loperamide. Neurogastroenterol Motil 2021; 33:e14163. [PMID: 33991455 DOI: 10.1111/nmo.14163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 03/25/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Gastrointestinal (GI) motility disorders affect a large proportion of the population with limited treatment options. The aims of this study were to investigate the potential of a non-invasive method of auricular vagal nerve stimulation (aVNS) for treating GI dysmotility and to explore possible mechanisms involving slow waves and interstitial cells of Cajal (ICC). METHODS Normal rats were treated daily with loperamide for 1 week and then treated, while still on daily loperamide, with aVNS/Sham-aVNS for another 1 week. Gastric emptying (GE), small intestine transit (SIT), and GI slow waves were measured. The plasma level of pancreatic polypeptide (PP) and noradrenaline (NE) was assessed by ELISA. ICC in the gastric antrum were detected by immunohistochemistry. KEY RESULTS (a) aVNS significantly increased the percentage of normal GI slow waves (p < 0.05 for both fasting and postprandial states, vs. Sham-aVNS) and accelerated GE (p < 0.05, vs. Sham-aVNS) and SIT (p < 0.05, vs. Sham-aVNS) impaired by loperamide. (b) aVNS increased plasma PP (p < 0.01) and decreased plasma NE (p < 0.01), compared with Sham-aVNS. (c) Gastric ICC was decreased by loperamide (p < 0.01) but increased after aVNS (p < 0.01, vs. Sham aVNS). CONCLUSIONS & INFERENCES Loperamide induces upper GI dysmotility. aVNS accelerates upper GI transit and improving pace-making activity mediated via the ICC. Non-invasive aVNS may have a therapeutic potential for upper GI dysmotility.
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Affiliation(s)
- Yiling Zhang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.,Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tao Lu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Yan Dong
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yan Chen
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jiande D Z Chen
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Tsymbalyuk O, Davydovska T, Lisnyak V, Veselsky S, Zaderko A, Voiteshenko I, Naumenko A, Skryshevsky V. ZnO and TiO 2 Nanocolloids: State of Mechanisms that Regulating the Motility of the Gastrointestinal Tract and the Hepatobiliary System. ACS OMEGA 2021; 6:23960-23976. [PMID: 34568675 PMCID: PMC8459414 DOI: 10.1021/acsomega.1c02981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Using the transmission electron microscopy (TEM)/high-resolution TEM (HRTEM) and selected area electron diffraction (SAED) methods, it was shown that the nanocolloids of ZnO contain hydrolyzed ZnO nanoparticles (NPs). Typically, the nanocrystalline ZnO/Zn(OH)2 core is covered by an amorphous shell of zinc hydroxides, preventing the encapsulated crystal core from dissolving. Similar studies were carried out with TiO2 nanocolloids. It was found that burdening of rats for 30 days with a ZnO aqueous nanocolloid (AN) was accompanied by a narrowing of the amplitude range, a decrease (increase) in the frequency of spontaneous contractions (SCs), and an inhibition of the efficiency indices for smooth muscles (SMs) of the antrum and cecum. Under longer (100 days) burdening of rats with AN of ZnO, there was a tendency toward restoring the above parameters. In terms of the value and the direction of changes in most parameters for SCs of SMs, the effects (30 days) of TiO2 AN differed from those for ZnO AN and were almost the same in the case of their long-term impact. It was found that mostly M2-cholinoreceptor-dependent mechanisms of regulating the intracellular concentration of Ca2+ were sensitive to the effect of ZnO and TiO2 ANs. The molecular docking demonstrated that ZnO and TiO2 NPs did not compete with acetylcholine for the site of binding to M3 and M2 cholinoreceptors but may impact the affinity of orthosteric ligands to M2 cholinoreceptors. The studies showed that burdening rats with ZnO and TiO2 ANs was also accompanied by changes in the activity state of both intracellular enzymes and the ion transport systems for Na+, K+, and Ca2+, related to the processes of bile secretion, via the plasma membrane of hepatocytes.
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Affiliation(s)
- Olga Tsymbalyuk
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Tamara Davydovska
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Vladyslav Lisnyak
- Chemical
Faculty, Taras Shevchenko National University
of Kyiv, 64, Volodymyrska
Str., 01033 Kyiv, Ukraine
- Prešov
University in Prešov, Ul. 17. Novembra č. 1, 081 16 Prešov, Slovakia
| | - Stanislav Veselsky
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Alexander Zaderko
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
- Corporation
Science Park Taras Shevchenko University of Kyiv, 60, Volodymyrska Str., 01033 Kyiv, Ukraine
| | - Ivan Voiteshenko
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Anna Naumenko
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
| | - Valeriy Skryshevsky
- Institute
of High Technologies, Taras Shevchenko National
University of Kyiv, 64, Volodymyrska Str, 01033 Kyiv, Ukraine
- Corporation
Science Park Taras Shevchenko University of Kyiv, 60, Volodymyrska Str., 01033 Kyiv, Ukraine
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Managing motility disorders of the gastrointestinal segment and obesity through electrical stimulation. HEALTH AND TECHNOLOGY 2021. [DOI: 10.1007/s12553-021-00590-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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35
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Interstitial Cells of Cajal: Potential Targets for Functional Dyspepsia Treatment Using Medicinal Natural Products. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:9952691. [PMID: 34306162 PMCID: PMC8263244 DOI: 10.1155/2021/9952691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 06/25/2021] [Indexed: 11/30/2022]
Abstract
Introduction The pathophysiology of functional dyspepsia (FD) remains uncertain, but the interstitial cells of Cajal (ICCs), pacemakers that regulate gastrointestinal motility, are garnering attention as key modulators and therapeutic targets in FD. This review comprehensively discusses the involvement of ICCs in the pharmacologic actions of FD and as therapeutic targets for herbal products for FD. Methods A search of the literature was performed using PubMed by pairing “interstitial cells of Cajal” with “medicinal plant, herbal medicine, phytotherapy, flavonoids, or traditional Chinese medicine (TCM).” Results From the 55 articles screened in the initial survey, 34 articles met our study criteria. The search results showed that herbal products can directly depolarize ICCs to generate pacemaker potentials and increase the expression of c-kit and stem cell factors, helping to repair ICCs. Under certain pathological conditions, medicinal plants also protect ICCs from oxidative stress and/or inflammation-induced impairment. Two representative herbal decoctions (Banhasasim-tang, 半夏泻心汤, and Yukgunja-tang, 六君子汤) have been shown to modulate ICC functions by both clinical and preclinical data. Conclusion This review strongly indicates the potential of herbal products to target ICCs and suggests that further ICC-based studies would be promising for the development of FD treatment agents.
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36
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Yang H, Jin XJ, Luo H, Li YH. Effects of Morphine on Interstitial Cells of Cajal in Rabbit Colon and Small Intestinal Transit: An Experimental Study. Curr Mol Med 2021; 20:240-246. [PMID: 31702490 DOI: 10.2174/1566524019666191023112837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 10/10/2019] [Accepted: 10/16/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE This study aims to investigate the effect of morphine with naloxone on intestinal peristalsis and the number of interstitial cells of Cajal (ICC) in colon tissues of rabbits. METHODS Thirty rabbits were randomly divided into five groups (n=6, each group): saline control group (NS group), low concentration of morphine group (L group), medium concentration of morphine group (M group), high concentration of morphine group (H group), medium concentration of morphine and naloxone mixed with antagonist group (NM group). Rabbits in these five groups were administered with an epidural puncture tube and dorsal epidural analgesia pump, and were continuously infused for seven days. Fecal characteristics were observed, and the ink propulsion rate was calculated. The expression level of ICC C-kit protein in colon tissues was tested by western blot. RESULTS The stool characteristics in the L, M and H groups were more severe than those in the NS and NM groups. Furthermore, the intestinal propulsion rate in the L, M and H groups was lower than that in the NS and NM groups. The C-kit mRNA and protein expression in the colon of rabbits were significantly lower in the L, M and H groups, when compared to the NS and NM groups. CONCLUSION Naloxone blocked the mRNA and protein expression of C-kit, and improved intestinal motor function.
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Affiliation(s)
- Heng Yang
- Department of Anesthesiology, Third Affiliated Hospital of Anhui Medical University, Hefei 230091, China.,Department of Anesthesiology, First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Xiao-Ju Jin
- Department of Anesthesiology, Affiliated Yijishan Hospital of Wannan Medical College, Wuhu 241000, China
| | - Hong Luo
- Department of Anesthesiology, Third Affiliated Hospital of Anhui Medical University, Hefei 230091, China
| | - Yuan-Hai Li
- Department of Anesthesiology, First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
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37
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Fu BB, Zhao JN, Wu SD, Fan Y. Cholesterol gallstones: Focusing on the role of interstitial Cajal-like cells. World J Clin Cases 2021; 9:3498-3505. [PMID: 34046450 PMCID: PMC8130069 DOI: 10.12998/wjcc.v9.i15.3498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/08/2021] [Accepted: 03/17/2021] [Indexed: 02/06/2023] Open
Abstract
Cholesterol gallstone (CG) is a common, frequent biliary system disease in China, with a complex and multifactorial etiology. Declined gallbladder motility reportedly contributes to CG pathogenesis. Furthermore, interstitial Cajal-like cells (ICLCs) are reportedly present in human and guinea pig gallbladder tissue. ICLCs potentially contribute to the regulation of gallbladder motility, and aberrant conditions involving the loss of ICLCs and/or a reduction in its pacing potential and reactivity to cholecystokinin may promote CG pathogenesis. This review discusses the association between ICLCs and CG pathogenesis and provides a basis for further studies on the functions of ICLCs and the etiologies of CG.
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Affiliation(s)
- Bei-Bei Fu
- Department of Health Management, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Jian-Nan Zhao
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Shuo-Dong Wu
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Ying Fan
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
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Lin P, Li B, Ye J, Shang F, Zhao H, Xie J, Yu X. Curcumin relieves mice gastric emptying dysfunction induced by L-arginine and atropine through interstitial cells of Cajal. Exp Ther Med 2021; 21:548. [PMID: 33850520 DOI: 10.3892/etm.2021.9980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 02/22/2021] [Indexed: 12/13/2022] Open
Abstract
Curcumin is natural polyphenol from Curcuma longa rhizomes with several biological properties. Our previous studies demonstrated that curcumin inhibited functional gastric emptying disorders induced by L-arginine, the precursor of nitric oxide (NO), and atropine, an acetylcholine receptor (AChR) blocker. However, the mechanism of action of curcumin remains unclear. In the present study, mouse models of functional gastric emptying disorders induced by L-arginine and atropine were used to examine changes in interstitial cells of Cajal (ICC) and NO- and ACh-mediated regulation of gastrointestinal motility. Curcumin pre-treatment ameliorated the gastric emptying rate in mice treated with L-arginine or atropine (P<0.01). NO content and NO synthase activity significantly increased in the stomachs of L-arginine-treated mice, compared with controls (P<0.01). Acetylcholinesterase activity (P<0.01) and mRNA expression (P<0.01), as well as AChR mRNA levels (P<0.05) significantly decreased following atropine treatment. Moreover, in both models, the levels of c-kit, anoctamin 1 and connexin 43 significantly decreased in the stomach (P<0.01). Conversely, curcumin pre-treatment inhibited the changes induced by L-arginine and atropine (P<0.01 or P<0.05). By affecting the production of exogenous NO, the effects of Ach-AchR and the biomarkers of ICC, curcumin relieves the gastric emptying dysfunction in mice.
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Affiliation(s)
- Peng Lin
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Baitao Li
- Department of Biotechnology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Junli Ye
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Fangfang Shang
- Department of Pathology, Navy 971 Hospital of The People's Liberation Army, Qingdao, Shandong 266000, P.R. China
| | - Hui Zhao
- Department of Pathology, Navy 971 Hospital of The People's Liberation Army, Qingdao, Shandong 266000, P.R. China
| | - Jing Xie
- Laboratory of Human Microscopic Structure, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Xiaoling Yu
- Department of Physiology and Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, Shandong 266021, P.R. China
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Yuan H, Hu H, Chen R, Mu W, Wang L, Li Y, Chen Y, Ding X, Xi Y, Mao S, Jiang M, Chen J, He Y, Wang L, Dong Y, Tou J, Chen W. Premigratory neural crest stem cells generate enteric neurons populating the mouse colon and regulating peristalsis in tissue-engineered intestine. Stem Cells Transl Med 2021; 10:922-938. [PMID: 33481357 PMCID: PMC8133337 DOI: 10.1002/sctm.20-0469] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/26/2020] [Accepted: 01/03/2021] [Indexed: 12/13/2022] Open
Abstract
Hirschsprung's disease (HSCR) is a common congenital defect. It occurs when bowel colonization by neural crest‐derived enteric nervous system (ENS) precursors is incomplete during the first trimester of pregnancy. Several sources of candidate cells have been previously studied for their capacity to regenerate the ENS, including enteric neural crest stem cells (En‐NCSCs) derived from native intestine or those simulated from human pluripotent stem cells (hPSCs). However, it is not yet known whether the native NCSCs other than En‐NCSCs would have the potential of regenerating functional enteric neurons and producing neuron dependent motility under the intestinal environment. The present study was designed to determine whether premigratory NCSCs (pNCSCs), as a type of the nonenteric NCSCs, could form enteric neurons and mediate the motility. pNCSCs were firstly transplanted into the colon of adult mice, and were found to survive, migrate, differentiate into enteric neurons, and successfully integrate into the adult mouse colon. When the mixture of pNCSCs and human intestinal organoids was implanted into the subrenal capsule of nude mice and grown into the mature tissue‐engineered intestine (TEI), the pNCSCs‐derived neurons mediated neuron‐dependent peristalsis of TEI. These results show that the pNCSCs that were previously assumed to not be induced by intestinal environment or cues can innervate the intestine and establish neuron‐dependent motility. Future cell candidates for ENS regeneration may include nonenteric NCSCs.
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Affiliation(s)
- Huipu Yuan
- Institute of Translational Medicine, and Children's Hospital Affiliated and Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, People's Republic of China.,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Hui Hu
- Department of Laboratory Medicine, Hangzhou Medical College, Hangzhou, People's Republic of China
| | - Rui Chen
- Institute of Translational Medicine, and Children's Hospital Affiliated and Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, People's Republic of China.,Department of Neonatal Surgery, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Wenbo Mu
- Institute of Translational Medicine, and Children's Hospital Affiliated and Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, People's Republic of China.,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Liangliang Wang
- Interdisciplinary Institutes of Neuroscience and Technology, Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, People's Republic of China
| | - Ying Li
- Institute of Translational Medicine, and Children's Hospital Affiliated and Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, People's Republic of China.,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Yuelei Chen
- Cell Bank/Stem Cell Bank, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Xiaoyan Ding
- Cell Bank/Stem Cell Bank, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, People's Republic of China
| | - Yongmei Xi
- Institute of Genetics and Department of Genetics, Division of Human Reproduction and Developmental Genetics of the Women's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - ShanShan Mao
- Department of Internal Neurology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Mizu Jiang
- Department of Gastroenterology, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Jie Chen
- Department of Pediatric Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical Engineering, Zhejiang University, Hangzhou, People's Republic of China
| | - Lang Wang
- Interdisciplinary Institutes of Neuroscience and Technology, Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, People's Republic of China
| | - Yi Dong
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, School of Physical Education & Health Care, East China Normal University, Shanghai, People's Republic of China
| | - Jinfa Tou
- Institute of Translational Medicine, and Children's Hospital Affiliated and Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, People's Republic of China.,Department of Neonatal Surgery, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Wei Chen
- Institute of Translational Medicine, and Children's Hospital Affiliated and Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, People's Republic of China.,Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Department of Neurobiology, Institute of Neuroscience, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
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Molecular Characterization of Constipation Disease as Novel Phenotypes in CRISPR-Cas9-Generated Leptin Knockout Mice with Obesity. Int J Mol Sci 2020; 21:ijms21249464. [PMID: 33322729 PMCID: PMC7763920 DOI: 10.3390/ijms21249464] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/07/2020] [Accepted: 12/07/2020] [Indexed: 12/19/2022] Open
Abstract
(1) Background: We characterized a novel animal model with obesity-induced constipation because constipation is rarely known in genetically engineered mice (GEM); (2) Methods: The changes in the constipation parameters and mechanisms were analyzed in CRISPR-Cas9-mediated leptin (Lep) knockout (KO) mice from eight to 24 weeks; (3) Results: Significant constipation phenotypes were observed in the Lep KO mice since 16 weeks old. These mice showed a significant decrease in the gastrointestinal motility, mucosal layer thickness and ability for mucin secretion as well as the abnormal ultrastructure of Lieberkühn crypts in the transverse colon. The density or function of the enteric neurons, intestinal Cajal cells (ICC), smooth muscle cells, and the concentration of gastrointestinal (GI) hormones for the GI motility were remarkably changed in Lep KO mice. The downstream signaling pathway of muscarinic acetylcholine receptors (mAChRs) were activated in Lep KO mice, while the expression of adipogenesis-regulating genes were alternatively reduced in the transverse colon of the same mice; (4) Conclusions: These results provide the first strong evidence that Lep KO mice can represent constipation successfully through dysregulation of the GI motility mediated by myenteric neurons, ICC, and smooth muscle cells in the transverse colon during an abnormal function of the lipid metabolism.
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Rybak A, Sethuraman A, Nikaki K, Koeglmeier J, Lindley K, Borrelli O. Gastroesophageal Reflux Disease and Foregut Dysmotility in Children with Intestinal Failure. Nutrients 2020; 12:nu12113536. [PMID: 33217928 PMCID: PMC7698758 DOI: 10.3390/nu12113536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/09/2020] [Accepted: 11/12/2020] [Indexed: 12/16/2022] Open
Abstract
Gastrointestinal dysmotility is a common problem in a subgroup of children with intestinal failure (IF), including short bowel syndrome (SBS) and pediatric intestinal pseudo-obstruction (PIPO). It contributes significantly to the increased morbidity and decreased quality of life in this patient population. Impaired gastrointestinal (GI) motility in IF arises from either loss of GI function due to the primary disorder (e.g., neuropathic or myopathic disorder in the PIPO syndrome) and/or a critical reduction in gut mass. Abnormalities of the anatomy, enteric hormone secretion and neural supply in IF can result in rapid transit, ineffective antegrade peristalsis, delayed gastric emptying or gastroesophageal reflux. Understanding the underlying pathophysiologic mechanism(s) of the enteric dysmotility in IF helps us to plan an appropriate diagnostic workup and apply individually tailored nutritional and pharmacological management, which might ultimately lead to an overall improvement in the quality of life and increase in enteral tolerance. In this review, we have focused on the pathogenesis of GI dysmotility in children with IF, as well as the management and treatment options.
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Affiliation(s)
- Anna Rybak
- Department of Gastroenterology, the Great Ormond Street Hospital, Great Ormond Street, London WC1N 3JH, UK; (A.S.); (J.K.); (K.L.); (O.B.)
- Correspondence:
| | - Aruna Sethuraman
- Department of Gastroenterology, the Great Ormond Street Hospital, Great Ormond Street, London WC1N 3JH, UK; (A.S.); (J.K.); (K.L.); (O.B.)
| | - Kornilia Nikaki
- Wingate Institute of Neurogastroenterology, Blizard Institute, Barts and The London School of Medicine and Dentistry, QMUL, 26 Ashfield Street, Whitechapel, London E1 2AJ, UK;
| | - Jutta Koeglmeier
- Department of Gastroenterology, the Great Ormond Street Hospital, Great Ormond Street, London WC1N 3JH, UK; (A.S.); (J.K.); (K.L.); (O.B.)
| | - Keith Lindley
- Department of Gastroenterology, the Great Ormond Street Hospital, Great Ormond Street, London WC1N 3JH, UK; (A.S.); (J.K.); (K.L.); (O.B.)
| | - Osvaldo Borrelli
- Department of Gastroenterology, the Great Ormond Street Hospital, Great Ormond Street, London WC1N 3JH, UK; (A.S.); (J.K.); (K.L.); (O.B.)
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Klein M, Varga I. Hirschsprung's Disease-Recent Understanding of Embryonic Aspects, Etiopathogenesis and Future Treatment Avenues. MEDICINA (KAUNAS, LITHUANIA) 2020; 56:E611. [PMID: 33202966 PMCID: PMC7697404 DOI: 10.3390/medicina56110611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/09/2020] [Accepted: 11/12/2020] [Indexed: 02/07/2023]
Abstract
Hirschsprung's disease is a neurocristopathy, caused by defective migration, proliferation, differentiation and survival of neural crest cells, leading to gut aganglionosis. It usually manifests rapidly after birth, affecting 1 in 5000 live births around the globe. In recent decades, there has been a significant improvement in the understanding of its genetics and the association with other congenital anomalies, which share the pathomechanism of improper development of the neural crest. Apart from that, several cell populations which do not originate from the neural crest, but contribute to the development of Hirschsprung's disease, have also been described, namely mast cells and interstitial cells of Cajal. From the diagnostic perspective, researchers also focused on "Variants of Hirschsprung's disease", which can mimic the clinical signs of the disease, but are in fact different entities, with distinct prognosis and treatment approaches. The treatment of Hirschsprung's disease is usually surgical resection of the aganglionic part of the intestine, however, as many as 30-50% of patients experience persisting symptoms. Considering this fact, this review article also outlines future hopes and perspectives in Hirschsprung's disease management, which has the potential to benefit from the advancements in the fields of cell-based therapy and tissue engineering.
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Affiliation(s)
- Martin Klein
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University in Bratislava, Spitalska Street 24, SK-813 72 Bratislava, Slovakia;
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Makkapati B, Nanda AK. Small bowel gastrointestinal stromal tumor presenting with involvement of the adjacent small bowel and hemoperitoneum case report. Ann Med Surg (Lond) 2020; 59:17-20. [PMID: 32983442 PMCID: PMC7494819 DOI: 10.1016/j.amsu.2020.08.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 08/17/2020] [Indexed: 11/27/2022] Open
Abstract
Accounting for less than one percent of all GI tumors, gastrointestinal stromal tumors are uncommon neoplasms that arise from the intestinal cells of Cajal. They can arise anywhere along the gastrointestinal tract, but most often arise from the stomach or small bowel. Usually, they are small and present with vague symptoms such as abdominal pain and are found incidentally. They usually don't involve other structures unless they metastasize. Here, we present a case of small bowel GIST. The patient is a 72-year-old male who was seen in the clinic with symptoms of abdominal pain for 4 months along with intermittent gastrointestinal bleeding for 6 years. Imaging studies revealed a mass in the small bowel with no signs of obstruction. During surgery, a 9 cm by 9 cm small bowel mass was identified with adhesions to the appendix, omentum, and a segment of small bowel. There was also a hemoperitoneum. En bloc resection was performed with clean margins. Histopathology report showed malignant gastrointestinal stromal tumor with focal involvement of adjacent small bowel loop.
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Affiliation(s)
| | - Atul K. Nanda
- Chairman of Surgery, Norwegian American Hospital, Chicago, IL, USA
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Sprouse J, Sampath C, Gangula PR. Role of sex hormones and their receptors on gastric Nrf2 and neuronal nitric oxide synthase function in an experimental hyperglycemia model. BMC Gastroenterol 2020; 20:313. [PMID: 32967621 PMCID: PMC7513483 DOI: 10.1186/s12876-020-01453-2] [Citation(s) in RCA: 2] [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: 08/26/2019] [Accepted: 09/15/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Gastroparesis, a condition of abnormal gastric emptying, is most commonly observed in diabetic women. To date, the role of ovarian hormones and/or gastric hormone receptors on regulating nitrergic-mediated gastric motility remains inconclusive. AIM The purpose of this study is to investigate whether sex hormones/their receptors can attenuate altered Nuclear factor (erythroid-derived 2)-like 2 (Nrf2), neuronal Nitric Oxide Synthase (nNOS) expression and nitrergic relaxation in gastric neuromuscular tissues exposed to in-vitro hyperglycemia (HG). METHODS Gastric neuromuscular sections from adult female C57BL/6 J mice were incubated in normoglycemic (NG, 5 mM) or hyperglycemic (30 mM or 50 mM) conditions in the presence or absence of selective estrogen receptor (ER) agonists (ERα /PPT or ERβ: DPN); or non-selective sex hormone receptor antagonists (ER/ICI 182,780, or progesterone receptor (PR)/ RU486) for 48 h. mRNA, protein expression and nitrergic relaxation of circular gastric neuromuscular strips were assessed. RESULTS Our findings in HG, compared to NG, demonstrate a significant reduction in ER, Nrf2, and nNOS expression in gastric specimens. In addition, in-vitro treatment with sex hormones and/or their agonists significantly (*p < 0.05) restored Nrf2/nNOSα expression and total nitrite production. Conversely, ER, but not PR, antagonist significantly reduced Nrf2/nNOSα expression and nitrergic relaxation. CONCLUSIONS Our data suggest that ER's can regulate nitrergic function by improving Nrf2/nNOS expression in experimental hyperglycemia.
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Affiliation(s)
- Jeremy Sprouse
- School of Graduate Studies, Meharry Medical College, Nashville, TN, 37208, USA.,Department of ODS & Research, School of Dentistry, Nashville, TN, 37208, USA
| | - Chethan Sampath
- Department of ODS & Research, School of Dentistry, Nashville, TN, 37208, USA
| | - Pandu R Gangula
- Department of ODS & Research, School of Dentistry, Nashville, TN, 37208, USA.
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Shen J, Mu C, Wang H, Huang Z, Yu K, Zoetendal EG, Zhu W. Stimulation of Gastric Transit Function Driven by Hydrolyzed Casein Increases Small Intestinal Carbohydrate Availability and Its Microbial Metabolism. Mol Nutr Food Res 2020; 64:e2000250. [PMID: 32945612 DOI: 10.1002/mnfr.202000250] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 08/07/2020] [Indexed: 11/07/2022]
Abstract
Gastrointestinal (GI) functions affect gut nutrient flow and microbial metabolism. Dietary peptides modulate GI functions and improve small intestinal health, but the mechanism remains elusive. This study aims to investigate whether dietary peptides affect small intestinal microbial metabolism, and the underlying mechanisms. An ileal-cannulated pig model is adopted to explore the relationship between gut nutrient flow and microbial metabolism after treatment with hydrolyzed casein (peptides) or intact casein (Control)-based diet. The results demonstrate that hydrolyzed casein enhances microbial carbohydrate metabolism with higher Streptococcus abundance and higher lactate level in the ileum. Meanwhile, hydrolyzed casein increases ileal flows of nutrients, especially carbohydrate, leading to a higher carbohydrate availability in ileal digesta. To unveil the mechanisms, it is found that the hydrolyzed casein enhances the ghrelin signal and improves development of interstitial cells of Cajal and muscular layer in gastric corpus, indicating the enhanced upper GI transit function. In addition, hydrolyzed casein improves small intestinal health, as indicated by higher villus heights and luminal lactate concentrations in the jejunum and ileum. In conclusion, hydrolyzed casein stimulates upper GI transit function, enhances gut nutrient flow, and increases small intestinal carbohydrate availability and its microbial metabolism, which favor the small intestinal health.
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Affiliation(s)
- Junhua Shen
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chunlong Mu
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
| | - Huisong Wang
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zan Huang
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kaifan Yu
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
| | - Erwin G Zoetendal
- Laboratory of Microbiology, Wageningen University, Wageningen, 6703 HB, The Netherlands
| | - Weiyun Zhu
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
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A Novel Intragastric Satiety-Inducing Device to Inhibit Weight Gain in Juvenile Pigs: a Pilot Study. Obes Surg 2020; 30:4643-4651. [DOI: 10.1007/s11695-020-04930-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 12/26/2022]
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Abd-Elhafeez HH, Abou-Elhamd AS, Soliman SA. Morphological and immunohistochemical phenotype of TCs in the intestinal bulb of Grass carp and their potential role in intestinal immunity. Sci Rep 2020; 10:14039. [PMID: 32820212 PMCID: PMC7441181 DOI: 10.1038/s41598-020-70032-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023] Open
Abstract
The current study investigated telocytes (TCs) in the intestinal bulb of Grass carp using light microscopy (LM), Transmission electron microscopy (TEM), scanning electron microscopy, and immunohistochemistry (IHC). By LM, TCs were distinguished by the typical morphological features that had a cell body and telopodes using HE, toluidine blue, methylene blue, Marsland silver stain, Grimelius's silver nitrate, Giemsa, PAS, combined AB pH2,5/PAS, Crossmon's and Mallory triple trichrome, Van Gieson stains, Verhoeff's stain, Sudan black, osmic acid, performic acid with methylene blue and bromophenol blue. TCs were identified under the epithelium as an individual cell or formed a TCs sheath. They detected in the lamina propria, between muscle fibers, around the myenteric plexus and fibrous tissue. TCs acquired immunological features of endocrine cells that exhibited high affinity for silver stain, performic acid with methylene blue, Marsland stain, and immunohistochemical staining using chromogranin A. Sub epithelial TCs were closely related to the endocrine cells. TCs and their secretory activities were recognized using acridine orange. TCs were identified by IHC using CD34, CD117, S100-protein, desmin. TCs formed a3D network that established contact with macrophage, mast cells, dendritic cells, lymphocytes, smooth muscle fibers, fibroblast, Schwann cells and nerve fibers. In conclusion, the localization of TCs in relation to different types of immune cells indicated their potential role in the maintenance of intestinal immunity.
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Affiliation(s)
- Hanan H Abd-Elhafeez
- Department of Anatomy, Embryology and Histology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt.
| | - Alaa S Abou-Elhamd
- Department of Anatomy, Embryology and Histology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
| | - Soha A Soliman
- Department of Histology, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt
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Li H, Xu W, Liu X, Ye J, Li P, Shang F, Yu X. Curcumin Alleviates the Side Effects of Cisplatin on Gastric Emptying of Mice by Inhibiting the Signal Changes of Acetylcholine and Interstitial Cells of Cajal. J Med Food 2020; 23:920-927. [PMID: 32833554 DOI: 10.1089/jmf.2019.4599] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cisplatin is a widely used anticancer drug that has adverse effects on gastrointestinal function. Curcumin is a natural polyphenol extracted from the rhizome of turmeric that has a wide range of biological activities. The present study investigated the effects of cisplatin on gastric emptying in mice and examined whether these can be inhibited by curcumin. We found that pretreatment with curcumin (200 mg/kg/day) for 10-30 days partly inhibited the decreases in gastric emptying rate and body weight induced by cisplatin. Furthermore, cisplatin reduced acetylcholine (ACh) concentration and the messenger RNA (mRNA) level of ACh receptor (AChR) as well as acetylcholinesterase activity in the stomach of mice; caused ultrastructural damage to interstitial cells of Cajal (ICC); and altered the expression of c-kit/stem cell factor and the gap junction protein connexin 43 in ICC. Curcumin pretreatment inhibited the effects of cisplatin on ACh indicators and ICC. These results demonstrate that curcumin can protect against cisplatin-induced gastric emptying disorder and thus has therapeutic potential for alleviating this condition in cancer patients receiving cisplatin chemotherapy.
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Affiliation(s)
- Hui Li
- Department of Physiology and Pathophysiology, Qingdao University Medical College, Qingdao, P.R. China
| | - Wenhua Xu
- Department of Laboratory Biochemistry, Qingdao University Medical College, Qingdao, P.R. China
| | - Xuying Liu
- Student of "5 + 3" Integration of Clinical Medicine, Grade 2015, Qingdao University Medical College, Qingdao, P.R. China
| | - Junli Ye
- Department of Physiology and Pathophysiology, Qingdao University Medical College, Qingdao, P.R. China
| | - Peijie Li
- Department of Pathology, The First Affiliated Hospital of Zhejiang University, Hangzhou, P.R. China
| | - Fangfang Shang
- Department of Pathology, Navy 971 Hospital of PLA, Qingdao, P.R. China
| | - Xiaoling Yu
- Department of Physiology and Pathophysiology, Qingdao University Medical College, Qingdao, P.R. China
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Ye L, Li G, Goebel A, Raju AV, Kong F, Lv Y, Li K, Zhu Y, Raja S, He P, Li F, Mwangi SM, Hu W, Srinivasan S. Caspase-11-mediated enteric neuronal pyroptosis underlies Western diet-induced colonic dysmotility. J Clin Invest 2020; 130:3621-3636. [PMID: 32484462 PMCID: PMC7324173 DOI: 10.1172/jci130176] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 03/24/2020] [Indexed: 02/06/2023] Open
Abstract
Enteric neuronal degeneration, as seen in inflammatory bowel disease, obesity, and diabetes, can lead to gastrointestinal dysmotility. Pyroptosis is a novel form of programmed cell death but little is known about its role in enteric neuronal degeneration. We observed higher levels of cleaved caspase-1, a marker of pyroptosis, in myenteric ganglia of overweight and obese human subjects compared with normal-weight subjects. Western diet-fed (WD-fed) mice exhibited increased myenteric neuronal pyroptosis, delayed colonic transit, and impaired electric field stimulation-induced colonic relaxation responses. WD increased TLR4 expression and cleaved caspase-1 in myenteric nitrergic neurons. Overactivation of nitrergic neuronal NF-κB signaling resulted in increased pyroptosis and delayed colonic motility. In caspase-11-deficient mice, WD did not induce nitrergic myenteric neuronal pyroptosis and colonic dysmotility. To understand the contributions of saturated fatty acids and bacterial products to the steps leading to enteric neurodegeneration, we performed in vitro experiments using mouse enteric neurons. Palmitate and lipopolysaccharide (LPS) increased nitrergic, but not cholinergic, enteric neuronal pyroptosis. LPS gained entry to the cytosol in the presence of palmitate, activating caspase-11 and gasdermin D, leading to pyroptosis. These results support a role of the caspase-11-mediated pyroptotic pathway in WD-induced myenteric nitrergic neuronal degeneration and colonic dysmotility, providing important therapeutic targets for enteric neuropathy.
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Affiliation(s)
- Lan Ye
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Gastroenterology Research, Atlanta VA Health Care System, Decatur, Georgia, USA
| | - Ge Li
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Gastroenterology Research, Atlanta VA Health Care System, Decatur, Georgia, USA
| | - Anna Goebel
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Gastroenterology Research, Atlanta VA Health Care System, Decatur, Georgia, USA
| | - Abhinav V. Raju
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Gastroenterology Research, Atlanta VA Health Care System, Decatur, Georgia, USA
| | - Feng Kong
- Second Hospital of Shandong University, Jinan, China
| | - Yanfei Lv
- Second Hospital of Shandong University, Jinan, China
| | - Kailin Li
- Second Hospital of Shandong University, Jinan, China
| | - Yuanjun Zhu
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
| | - Shreya Raja
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Gastroenterology Research, Atlanta VA Health Care System, Decatur, Georgia, USA
| | - Peijian He
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Fang Li
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
| | - Simon Musyoka Mwangi
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Gastroenterology Research, Atlanta VA Health Care System, Decatur, Georgia, USA
| | - Wenhui Hu
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
| | - Shanthi Srinivasan
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Gastroenterology Research, Atlanta VA Health Care System, Decatur, Georgia, USA
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Vogt CD, Panoskaltsis-Mortari A. Tissue engineering of the gastroesophageal junction. J Tissue Eng Regen Med 2020; 14:855-868. [PMID: 32304170 DOI: 10.1002/term.3045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 04/03/2020] [Indexed: 12/12/2022]
Abstract
The gastroesophageal junction has been of clinical interest for some time due to its important role in preventing reflux of caustic stomach contents upward into the esophagus. Failure of this role has been identified as a key driver in gastroesophageal reflux disease, cancer of the lower esophagus, and aspiration-induced lung complications. Due to the large population burden and significant morbidity and mortality related to reflux barrier dysfunction, there is a pressing need to develop tissue engineering solutions which can replace diseased junctions. While good progress has been made in engineering the bodies of the esophagus and stomach, little has been done for the junction between the two. In this review, we discuss pertinent topics which should be considered as tissue engineers begin to address this anatomical region. The embryological development and adult anatomy and histology are discussed to provide context about the native structures which must be replicated. The roles of smooth muscle structures in the esophagus and stomach, as well as the contribution of the diaphragm to normal anti-reflux function are then examined. Finally, engineering considerations including mechanics and current progress in the field of tissue engineering are presented.
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Affiliation(s)
- Caleb D Vogt
- Department of Pediatrics, University of Minnesota, Minneapolis, MN, USA
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