1
|
Gürünlüoğlu S, Ceran C, Gürünlüoğlu K, Koçbiyik A, Gül M, Yıldız T, Bağ HG, Gül S, Taşçi A, Bayrakçi E, Akpinar N, Çin ES, Ateş H, Demircan M. Glial Cell Line-Derived Neurotrophic Factor, S-100 Protein and Synaptophysin Expression in Biliary Atresia Gallbladder Tissue. Pediatr Gastroenterol Hepatol Nutr 2021; 24:173-186. [PMID: 33833973 PMCID: PMC8007845 DOI: 10.5223/pghn.2021.24.2.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/09/2020] [Accepted: 10/20/2020] [Indexed: 11/14/2022] Open
Abstract
PURPOSE Biliary atresia (BA) is a disease that manifests as jaundice after birth and leads to progressive destruction of the ductal system in the liver. The aim of this study was to investigate histopathological changes and immunohistochemically examine the expression of glial cell line-derived neurotrophic factor (GDNF), synaptophysin, and S-100 protein in the gallbladder of BA patients. METHODS The study included a BA group of 29 patients and a control group of 41 children with cholecystectomy. Gallbladder tissue removed during surgery was obtained and examined immunohistochemically and histopathologically. Tissue samples of both groups were immunohistochemically assessed in terms of GDNF, S-100 protein, and synaptophysin expression. Expression was classified as present or absent. Inflammatory activity assessment with hematoxylin and eosin staining and fibrosis assessment with Masson's trichrome staining were performed for tissue sample sections of both groups. RESULTS Ganglion cells were not present in gallbladder tissue samples of the BA group. Immunohistochemically, GDNF, synaptophysin, and S-100 expression was not detected in the BA group. Histopathological examination revealed more frequent fibrosis and slightly higher inflammatory activity in the BA than in the control group. CONCLUSION We speculate that GDNF expression will no longer continue in this region, when the damage caused by inflammation of the extrahepatic bile ducts reaches a critical threshold. The study's findings may represent a missing link in the chain of events forming the etiology of BA and may be helpful in its diagnosis.
Collapse
Affiliation(s)
- Semra Gürünlüoğlu
- Department of Pathology Malatya Education and Research Hospital, Pathology Laboratory, Malatya, Turkey
| | - Canan Ceran
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Kubilay Gürünlüoğlu
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Alper Koçbiyik
- Department of Pathology, Istanbul Bakırköy Dr Sadi Konuk Education and Research Hospital, Pathology Laboratory, Istanbul, Turkey
| | - Mehmet Gül
- Department of Histology and Embryology, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Turan Yıldız
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Harika Gözükara Bağ
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Semir Gül
- Department of Histology and Embryology, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Aytaç Taşçi
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Ercan Bayrakçi
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Necmettin Akpinar
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Ecem Serbest Çin
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Hasan Ateş
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Mehmet Demircan
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| |
Collapse
|
2
|
Abstract
This paper is the thirty-eighth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2015 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior, and the roles of these opioid peptides and receptors in pain and analgesia, stress and social status, tolerance and dependence, learning and memory, eating and drinking, drug abuse and alcohol, sexual activity and hormones, pregnancy, development and endocrinology, mental illness and mood, seizures and neurologic disorders, electrical-related activity and neurophysiology, general activity and locomotion, gastrointestinal, renal and hepatic functions, cardiovascular responses, respiration and thermoregulation, and immunological responses.
Collapse
Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
| |
Collapse
|