1
|
Mazzoni M, Karunaratne TB, Sirri F, Petracci M, De Giorgio R, Sternini C, Clavenzani P. Enteroendocrine profile of α-transducin and α-gustducin immunoreactive cells in the chicken (Gallus domesticus) gastrointestinal tract. Poult Sci 2018; 97:4063-4072. [PMID: 29955800 PMCID: PMC6162362 DOI: 10.3382/ps/pey279] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 06/12/2018] [Indexed: 11/20/2022] Open
Abstract
The enteroendocrine profile and distribution patterns of the taste signaling molecules, α-gustducin (Gαgust) and α-transducin (Gαtran) protein subunits, were studied in the gastrointestinal (GI) tract of the chicken (Gallus domesticus) using double labeling immunohistochemistry. Gαtran or Gαgust immunoreactivity was observed in enteroendocrine cells (EEC) expressing different peptides throughout the entire GI tract with different density. In the proventriculus tubular gland, Gαtran or Gαgust/gastrin (GAS) immunoreactive (-IR) cells were more abundant than Gαtran/or Gαgust containing glucagon-like peptide-1 (GLP-1) or peptide YY (PYY), whereas only few Gαtran or Gαgust cells co-stored ghrelin (GHR) or 5-hydroxytryptamine (5-HT). In the pyloric mucosa, many Gαtran or Gαgust-IR cells co-expressed GAS or GHR, with less Gαtran or Gαgust cells containing GLP-1, PYY, or 5-HT. In the small intestine, a considerable subset of Gαtran or Gαgust-IR cells co-expressed 5-HT in the villi of the duodenum and ileum, PYY in the villi of the jejunum, CCK or GLP-1 in the villi of the ileum, and GHR in the duodenum crypts. In the large intestine, many Gαtran or Gαgust-IR cells contained 5-HT or GLP-1 in the villi of the rectum, whereas some Gαtran/Gαgust-IR cells co-expressed PYY- or CCK-, and few Gαtran/Gαgust-IR cells were positive for GHR-IR. In the cecum, several Gαtran or Gαgust-IR cells were IR for 5-HT. Finally, many Gαtran/Gαgust cells containing 5-HT were observed in the villi and crypts of the cloaca, whereas there were few Gαtran or Gαgust/CCK-IR cells. The demonstration that Gα-subunits are expressed in the chicken GI enteroendocrine system supports the involvement of taste signaling machinery in the chicken chemosensing processes.
Collapse
Affiliation(s)
- M Mazzoni
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, 40064 Bologna, Italy
| | - T B Karunaratne
- Department of Medical and Surgical Sciences, University of Bologna, 40138 Italy
| | - F Sirri
- Department of Agricultural and Food Sciences, University of Bologna, Ozzano Emilia, 40064 Bologna, Italy
| | - M Petracci
- Department of Agricultural and Food Sciences, University of Bologna, Ozzano Emilia, 40064 Bologna, Italy
| | - R De Giorgio
- Department of Medical Sciences, University of Ferrara, Nuovo Arcispedale S.Anna, in Cona, 44121 Ferrara, Italy
| | - C Sternini
- CURE/DDRC, Division of Digestive Diseases, Departments Medicine and Neurobiology, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
| | - P Clavenzani
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, 40064 Bologna, Italy
| |
Collapse
|
2
|
Malagelada C, Karunaratne TB, Accarino A, Cogliandro RF, Landolfi S, Gori A, Boschetti E, Malagelada JR, Stanghellini V, Azpiroz F, De Giorgio R. Comparison between small bowel manometric patterns and full-thickness biopsy histopathology in severe intestinal dysmotility. Neurogastroenterol Motil 2018; 30. [PMID: 28941004 DOI: 10.1111/nmo.13219] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 09/04/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Intestinal manometry is the current standard for direct evaluation of small bowel dysmotility. Patients with abnormal motility can either be diagnosed of pseudo-obstruction when there are radiological findings mimicking mechanical intestinal obstruction or of enteric dysmotility when these findings are absent. The aim of the present study was to prospectively compare small bowel manometric abnormalities with histopathological findings in intestinal full-thickness biopsies in patients with severe dysmotility disorders. METHODS We investigated 38 patients with intestinal manometry and a subsequent full-thickness intestinal biopsy. Manometric recordings were read by 4 investigators and a diagnostic consensus was obtained in 35 patients. Histopathological analysis, including specific immunohistochemical techniques of small bowel biopsies was performed and compared to manometric readings. KEY RESULTS Patients with abnormal intestinal manometry had abnormal histopathological findings in 73% of cases. However, manometric patterns did not match with the specific neuromuscular abnormalities. Among patients with a neuropathic manometry pattern and abnormal histopathology, only 23% had an enteric neuropathy, whereas 62% had neuromuscular inflammation, and 15% an enteric myopathy. On the other hand, patients with a myopathic manometry pattern all had abnormal histopathology, however, none of them with signs of enteric myopathy. CONCLUSION & INFERENCES Small bowel dysmotility detected by intestinal manometry is often associated with abnormal neuromuscular findings in full-thickness biopsies. However, there is no correlation between the specific manometric patterns and the histopathological findings.
Collapse
Affiliation(s)
- C Malagelada
- Digestive System Research Unit, University Hospital Vall d'Hebron, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - T B Karunaratne
- Departments of Medical and Surgical Sciences and Digestive System, Centro di Ricerca Biomedica Applicata (C.R.B.A.), University of Bologna, St. Orsola-Malpighi Hospital, Bologna, Italy
| | - A Accarino
- Digestive System Research Unit, University Hospital Vall d'Hebron, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - R F Cogliandro
- Departments of Medical and Surgical Sciences and Digestive System, Centro di Ricerca Biomedica Applicata (C.R.B.A.), University of Bologna, St. Orsola-Malpighi Hospital, Bologna, Italy
| | - S Landolfi
- Department of Pathology, University Hospital Vall d'Hebron, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - A Gori
- Departments of Medical and Surgical Sciences and Digestive System, Centro di Ricerca Biomedica Applicata (C.R.B.A.), University of Bologna, St. Orsola-Malpighi Hospital, Bologna, Italy
| | - E Boschetti
- Departments of Medical and Surgical Sciences and Digestive System, Centro di Ricerca Biomedica Applicata (C.R.B.A.), University of Bologna, St. Orsola-Malpighi Hospital, Bologna, Italy
| | - J R Malagelada
- Digestive System Research Unit, University Hospital Vall d'Hebron, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - V Stanghellini
- Departments of Medical and Surgical Sciences and Digestive System, Centro di Ricerca Biomedica Applicata (C.R.B.A.), University of Bologna, St. Orsola-Malpighi Hospital, Bologna, Italy
| | - F Azpiroz
- Digestive System Research Unit, University Hospital Vall d'Hebron, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - R De Giorgio
- Departments of Medical and Surgical Sciences and Digestive System, Centro di Ricerca Biomedica Applicata (C.R.B.A.), University of Bologna, St. Orsola-Malpighi Hospital, Bologna, Italy
| |
Collapse
|
3
|
Di Nardo G, Karunaratne TB, Frediani S, De Giorgio R. Chronic intestinal pseudo-obstruction: Progress in management? Neurogastroenterol Motil 2017; 29. [PMID: 29143474 DOI: 10.1111/nmo.13231] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 09/17/2017] [Indexed: 12/13/2022]
Abstract
Chronic intestinal pseudo-obstruction (CIPO) is a severe form of gastrointestinal dysmotility (often due to derangement of the innervation/smooth muscle/interstitial cells of Cajal) with recurrent episodes of intestinal subocclusion mimicking a mechanical obstruction. Because of its complexity and heterogeneity, CIPO is often misdiagnosed or remains unrecognized until advanced stages. Management is a critical aspect in CIPO patient care. So far, most prokinetic drugs have not proven efficacy in restoring intestinal propulsion, thus nutritional support, fluid/electrolyte replacement, and antibiotics are the mainstay of treatment. In this issue of the journal, Ohkubo et al showed promising data indicating that percutaneous endoscopic gastro-jejunostomy (PEG-J) can be proposed as a measure for intestinal decompression, thereby improving CIPO-associated abdominal symptoms, including pain. In addition to a concise update of clinical and diagnostic features, the present minireview tackles management options, with a major emphasis on PEG-J, for CIPO patients.
Collapse
Affiliation(s)
- G Di Nardo
- Pediatric Gastroenterology Unit, Santobono-Pausilipon Children's Hospital, Naples, Italy.,Pediatric Gastroenterology Unit, International Hospital Salvator Mundi, Rome, Italy
| | - T B Karunaratne
- Department of Medical and Surgical Sciences, University of Bologna, Italy
| | - S Frediani
- Pediatric Surgery Unit, Sapienza - University of Rome, Italy
| | - R De Giorgio
- Department of Clinical Science, University of Ferrara, Italy
| |
Collapse
|
4
|
Albusoda A, Barki N, Herregods T, Kamphuis JBJ, Karunaratne TB, Lazarou M, Lee I, Mazurak N, Perna E, Polster A, Pribic T, Uhlig F, Wang H, Enck P. A fresh look at IBS-opportunities for systems medicine approaches. Neurogastroenterol Motil 2017; 29. [PMID: 27997070 DOI: 10.1111/nmo.12989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 10/02/2016] [Accepted: 10/10/2016] [Indexed: 02/08/2023]
Abstract
NeuroGUT is a EU-funded initial training network (ITN) of 14 research projects in neurogastroenterology that have employed an equal number of early-stage researchers. Neurogut trainees have-among other activities-attended an international conference on irritable bowel syndrome (IBS) in Bologna in 2016 and were asked to critically review and evaluate the current knowledge on IBS for their respective research activities, and to state what they were missing. Most appreciated were the topics brain imaging of gut activity, the role of the gut microbiota, the pharmacology of gut functions, the IBS-IBD interrelation, the new Rome IV criteria, the role of gas, and the placebo response in functional disorders. Missed were more detailed coverage of high-resolution manometry, functional brain imaging, advanced "systems medicine" approaches and bioinformatics technology, better sub-classification of IBS patients, and the development of disease biomarkers, extended at the molecular (genetic/epigenetic, proteonomic) level. They summarize that despite excellent specialized research, there is a gap open that should be filled with systems medicine. For this, it would be necessary that medical research learns even more from the data sciences and other basic disciplines, for example, information technology and system biology, and also welcomes a change in paradigm that enhances open sharing of data, information, and resources.
Collapse
Affiliation(s)
- A Albusoda
- Queen Mary and Westfield College University of London, London, UK
| | - N Barki
- Technische Universität München, Munich, Germany
| | - T Herregods
- Academisch Medisch Centrum bij de Universiteit, Amsterdam, The Netherlands
| | - J B J Kamphuis
- Institut National de la Recherche Agronomique, Toulouse, France
| | | | - M Lazarou
- Technische Universität München, Munich, Germany
| | - I Lee
- Eberhard Karls Universität Tübingen, Tübingen, Germany
| | | | - E Perna
- Katholieke Universiteit Leuven, Leuven, Belgium
| | - A Polster
- Göteborgs Universitet, Gothenburg, Sweden
| | - T Pribic
- Fundacio Hospital Universitari Vall d'Hebron, Institut de Recerca, Barcelona, Spain
| | - F Uhlig
- University of Sheffield, Sheffield, UK
| | - H Wang
- Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - P Enck
- Eberhard Karls Universität Tübingen, Tübingen, Germany
| |
Collapse
|
5
|
Di Nardo G, Di Lorenzo C, Lauro A, Stanghellini V, Thapar N, Karunaratne TB, Volta U, De Giorgio R. Chronic intestinal pseudo-obstruction in children and adults: diagnosis and therapeutic options. Neurogastroenterol Motil 2017; 29. [PMID: 27683196 DOI: 10.1111/nmo.12945] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 08/21/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Chronic intestinal pseudo-obstruction (CIPO) represents the most severe form of gastrointestinal dysmotility with debilitating and potentially lethal consequences. Symptoms can be non-specific, and result in this condition being diagnosed incorrectly or too late with consequences for morbidity and even mortality. PURPOSE The present article aims to provide pediatric and adult gastroenterologists with an up to date review about clinical features, diagnosis and therapeutic options for CIPO. Although pediatric and adult CIPO share many clinical aspects distinctive features can be identified. There is no single diagnostic test or pathognomonic finding of CIPO, thus a stepwise approach including radiology, endoscopy, laboratory, manometry, and histopathology should be considered in the diagnostic work-up. Treatment of patients with CIPO is challenging and requires a multidisciplinary effort with participation of appropriately experienced gastroenterologists, pathologists, dieticians, surgeons, psychologists, and other subspecialists based on the presence of comorbidities. Current treatment options invariably involve surgery and specialized nutritional support, especially in children. Medical therapies are mainly aimed to avoid complications such as sepsis or intestinal bacterial overgrowth and, where possible, restore intestinal propulsion. More efficacious therapeutic options are eagerly awaited for such difficult patients.
Collapse
Affiliation(s)
- G Di Nardo
- Pediatric Unit, Orvieto Hospital, Orvieto, Italy.,Pediatric Gastroenterology Unit, International Hospital Salvator Mundi, Rome, Italy
| | - C Di Lorenzo
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Nationwide Children's Hospital, Columbus, OH, USA
| | - A Lauro
- Liver and Multiorgan Transplant Unit, St. Orsola-Malpighi University Hospital, Bologna, Italy
| | - V Stanghellini
- Department of Medical and Surgical Sciences, Centro di Ricerca BioMedica Applicata (C.R.B.A.), University of Bologna, Bologna, Italy
| | - N Thapar
- Department of Gastroenterology, Great Ormond Street Hospital, Institute of Child Health, London, UK
| | - T B Karunaratne
- Department of Medical and Surgical Sciences, Centro di Ricerca BioMedica Applicata (C.R.B.A.), University of Bologna, Bologna, Italy
| | - U Volta
- Department of Medical and Surgical Sciences, Centro di Ricerca BioMedica Applicata (C.R.B.A.), University of Bologna, Bologna, Italy
| | - R De Giorgio
- Department of Medical and Surgical Sciences, Centro di Ricerca BioMedica Applicata (C.R.B.A.), University of Bologna, Bologna, Italy
| |
Collapse
|