Objective: The aim of this study was to evaluate the effect of oral tamoxifen treatment on the number of myofibroblasts present during the healing process after experimental bile duct injury.
Methods: The sample consisted of 16 pigs that were divided into two groups (the control and study groups). Incisions and suturing of the bile ducts were performed in the two groups. Tamoxifen (20 mg/day) was administered only to the study group. The animals were sacrificed after 30 days. Quantification of myofibroblasts in the biliary ducts was made through immunohistochemistry analysis using anti-alpha smooth muscle actin of the smooth muscle antibody. Immunohistochemical quantification was performed using a digital image system.
Results: In the animals treated with tamoxifen (20 mg/day), there was a significant reduction in immunostaining for alpha smooth muscle actin compared with the control group (0.1155 vs. 0.2021, p = 0.046).
Conclusion: Tamoxifen reduced the expression of alpha smooth muscle actin in the healing tissue after bile duct injury, suggesting a decrease in myofibroblasts in the scarred area of the pig biliary tract. These data suggest that tamoxifen could be used in the prevention of biliary tract stenosis after bile duct surgeries.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3552444 | PMC |
http://dx.doi.org/10.6061/clinics/2013(01)oa16 | DOI Listing |
Cell Mol Life Sci
December 2024
Department of Thoracic Surgery Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
Objective: Intrahepatic cholangiocarcinoma (iCCA) is a highly lethal hepatobiliary malignancy with an increasing incidence annually. Extensive research has elucidated the existence of a reciprocal interaction between platelets and cancer cells, which promotes tumor proliferation and metastasis. This study aims to investigate the function and mechanism underlying iCCA progression driven by the interplay between platelets and tumor cells, aiming to provide novel therapeutic strategies for iCCA.
View Article and Find Full Text PDFChem Biol Interact
December 2024
New Drug Screening and Pharmacodynamics Evaluation Center, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China. Electronic address:
Obeticholic acid (OCA) was approved for the treatment of primary biliary cholangitis (PBC) patients. However, it can cause severe drug-induced liver injury (DILI), which may put PBC patients at risk of acute-on-chronic liver failure (ACLF) and even death. Farnesoid X receptor (FXR) is considered as the target of OCA for cholestasis, but there is still a lack of research on whether hepatic and ileal FXR have different effects after OCA treatment.
View Article and Find Full Text PDFGeorgian Med News
October 2024
3State Higher Medical College named after D. Kalmataev, Semey, Republic of Kazakhstan.
Purpose Of The Study: improving the surgical treatment of biliary pancreatitis by using a universal retractor and improved methods of omentobursostomy with drainage of the omental bursa.
Study Design: Non-randomized controlled clinical trial Material and methods: This study included thirty-nine patients who underwent surgical procedures between October 2022 and September 2023 in Semey, located in the Abay region. The study examined the general characteristics of surgical interventions performed for acute biliary pancreatitis using our proposed treatment methods and devices to improve the outcomes of acute biliary pancreatitis.
Dig Endosc
December 2024
Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan.
Objectives: This study aimed to investigate the diagnostic performance and safety of endoscopic ultrasound-guided tissue acquisition (EUS-TA) for perivascular soft-tissue cuffing (PSTC).
Methods: This single-center, retrospective study evaluated patients in whom EUS-TA was performed for PSTC in pancreatic or bile duct cancer lesions between October 2017 and March 2024. PSTC was defined as a perivascular soft-tissue area contiguous with nearby blood vessels from the suspected primary tumor.
Cureus
November 2024
Radiation Oncology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, IND.
Background Cholangitis, or bile duct infection, can present in two primary forms, namely, acute ascending cholangitis (the milder form) and acute fulminant cholangitis (the more severe variety). In all types of cholangitis, bile duct obstruction occurs, with choledocholithiasis (the presence of gallstones in the bile duct) being the leading cause of this blockage. is the most commonly isolated pathogen in these infections.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!