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Morphological, Histological and Histochemical Analysis of the Digestive Tract in Panga Pangasius hypophthalmus (Teleostei: Siluriformes).
Anat Histol Embryol
March 2025
Department of Morphology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Goiás, Brazil.
The current study aims to describe the macroscopic, histological and histochemical features of the digestive tract of omnivorous fish species Panga Pangasius hypophthalmus-which derives from Southeast Asian watersheds-with emphasis on secretory cell types and their histochemical reactions. Results have evidenced that the anatomical organisation of the digestive tract in the coelomic cavity of the investigated species is similar to that of other omnivorous teleosts, except for a pneumatic duct linking the distal portion of their oesophagus to their swim bladder. It is worth highlighting that both the oesophagus and the stomach have well-developed histological layers and that the stomach has a saccular shape and is highly distensible to ensure longer food storage time.
View Article and Find Full Text PDFDemystifying "Hyaline Angiopathy" of Pulse Granuloma in Oral and Extraoral Surgical Pathology.
Oral Dis
February 2025
Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Saskatoon, Canada.
Background And Objectives: Pulse granuloma (PG), or giant cell hyaline angiopathy, is an immune-mediated reaction often following the implantation of plant-derived food particles. PGs are primarily found in the oral cavity and gastrointestinal tract and may represent a histopathological pitfall, being mistaken for other granulomatous conditions or tumors. This study is the first to compare oral to extraoral PGs, aiming to clarify the "hyaline angiopathy" seen in PGs by developing a detailed histochemical and immunohistochemical profile of oral and colonic PGs.
View Article and Find Full Text PDFPlacental expression of estrogen and progesterone receptors and vascular endothelial growth factor in buffaloes suffering from uterine torsion.
BMC Vet Res
February 2025
Department of Theriogenology, Faculty of Veterinary Medicine, Aswan University, Aswan, 81528, Egypt.
Background: Although several risk factors have been suggested for uterine torsion, the pathogenesis is still unclear. Therefore, the current study aims to investigate the pathogenesis of uterine torsion by assessing the histological, histochemical, and immunohistochemical changes that occur in the placenta obtained from uterine torsion cases. Immunohistochemical changes include investigation of the expression of estrogen receptors (ERs), progesterone receptors (PRs), and the vascular endothelial growth factor (VEGF) in the placental tissue.
View Article and Find Full Text PDFMethylase METTL3 regulates oxidative stress-induced osteoblast apoptosis through Wnt/β-catenin signaling pathway.
J Mol Histol
February 2025
Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, 250012, China.
The latest research shows that the imbalance of reactive oxygen species (ROS) leads to oxidative stress-induced osteoblast apoptosis, which is an important factor in the development of osteoporosis. Methyltransferase like 3 (METTL3) is the most widely known methyltransferase, which has a marked effect on the cells of oxidative stress reaction. However, the precise mechanism through which METTL3 mediates oxidative stress-induced osteoblast apoptosis remains uncleared.
View Article and Find Full Text PDFAdverse Reactions to Cosmetic Fillers in the Oral and Maxillofacial Region: Clinico-Pathological, Histochemical, and Immunohistochemical Characterization.
J Oral Pathol Med
March 2025
Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Background: Cosmetic injections are increasing, as their complications, which can be misdiagnosed as neoplastic lesions. This study aimed to detail clinical, pathological, histochemical, and immunohistochemical features of adverse reactions to cosmetic fillers in the oral and maxillofacial region.
Methods: Samples were retrieved from five pathology laboratories.
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