Results 91 to 100 of about 22,510 (222)

Isolated in the highlands, found in the museum: A new species of Characidium (Crenuchidae) from a Bolivian National Park, with a CT scan revealing features

Journal of Fish Biology, EarlyView.
Abstract A new species of Characidium is described from a small, isolated river in the highland areas of Noel Kempff Mercado National Park, Bolivia. The new taxon can be diagnosed by the presence of a relatively broad and conspicuous dark midlateral stripe extending from the tip of snout to the base of the caudal fin, markedly darker than the vertical ...
Leonardo Oliveira‐Silva, Karina Or, Angela Zanata, Scott A. Schaefer   +3 more
wiley   +1 more source

Welfare and Physiological Consequences of Non‐Lethal Blood Sampling From the Caudal Vasculature of Atlantic Salmon (Salmo salar L.)

Journal of Fish Diseases, EarlyView.
ABSTRACT The objective of this study was to evaluate welfare and health effects following single and repeated non‐lethal blood sampling from the caudal vasculature of Atlantic salmon. Two experiments were conducted at three different temperatures: a 6‐week freshwater experiment with fish weighing 50–100 g, undergoing up to four blood withdrawals, and a
Harriet Romstad, Camilla Karlsen, Silje Stensby‐Skjærvik, Alf Seljenes Dalum, Maria Banaszkiewicz, Simen Foyn Nørstebø, Jessica Louise Ray, Hege Lund, Torstein Kristensen, Christine Klykken   +9 more
wiley   +1 more source

The dental plate on bichir pectoral fins: A unique dermal skeletal element bearing individual odontodes with tooth‐like replacement

Journal of Anatomy, EarlyView.
Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek, Ann Huysseune, Robert Cerny   +2 more
wiley   +1 more source

Spatiotemporal remodelling of the cloacal region determines the position of the anal opening in mouse embryos

Journal of Anatomy, EarlyView.
In E13.25 mouse embryo, the urorectal septum consistently positioned on the dorsodistal side of the cloacal membrane. Through 3D reconstruction of the cloacal internal space, we revealed that the position of the anal opening is established prior to cloacal membrane rupture and is located at the junction between the hindgut lumen (blue) and an expanded ...
Weiyi Wang, Masayo Harada, Keiichi Akita
wiley   +1 more source

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

Journal of Anatomy, EarlyView.
Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack, Ben T. Kligman, Maranda L. Stricklin   +2 more
wiley   +1 more source

Local excision inadequate in the treatment of anal canal leiomyosarcoma

The Saudi Journal of Gastroenterology, 2010
Leiomyosarcoma of the anal canal is an uncommon neoplasm of the gastrointestinal tract. We report a 45-year-old lady with anal canal leiomyosarcoma. In view of its rarity, we report its presentation and management.
Kumar G, Chandra Sarath, Krishnan R
doaj  

Detection of renal tubular transporter proteins in canine urinary extracellular vesicles using liquid chromatography–tandem mass spectrometry

Veterinary Clinical Pathology, EarlyView.
Abstract Urinary extracellular vesicles (UEVs) are membranous particles that carry renal tubular transporter proteins. Here, we evaluate whether selected renal tubular transporter proteins can be detected in UEVs isolated from small volume (1–5 mL) canine urine samples of healthy dogs and canine patients with elevated circulating parathyroid hormone ...
L. J. McGravey, P. R. Antrobus, T. L. Williams   +2 more
wiley   +1 more source

Historical Records of Tumours in New Zealand Marine Fishes

New Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 2, June 2026.
Tumours were first described in New Zealand marine fishes in 1982 but those early records have been difficult to access and subsequently few tumours have been collected and little has been published. This review updates records of identified tumours from teleosts in the New Zealand marine environment and may encourage more work to identify background ...
John Brian Jones
wiley   +1 more source

Changes in the 6th edition of the World Health Organization classification of tumours of the digestive system

Histopathology, Volume 88, Issue 7, Page 1295-1314, June 2026.
Changes and new entities in the 6th edition WCT of the digestive system, including structural, molecular, and diagnostic updates to standardize terminology and improve clinical relevance. Epithelial tumours are organized by site; neuroendocrine, mesenchymal and haematolymphoid tumours have dedicated chapters, with refined grading, redefined ...
Mark J Arends, Irene Esposito, Anthony J Gill, Ralph H Hruban, Joseph D Khoury, Motohiro Kojima, Elizabeth A Montgomery, Fatimah Abdulkareem, Fátima Carneiro, Guido Costamagna, Gregory Lauwers, Alexandros D Polydorides, Guido Rindi, Massimo Rugge, Peter Schirmacher, Amitabh Srivastava, James Yao, Jennelle C Hodge, James G Kench, Bharat Rekhi, Miguel Reyes‐Múgica, Antonia R Sepulveda, Chanjuan Shi, Pavitratha Puspanathan, Harshima Wijesinghe, Christine Giesen, Blanca Iciar Indave Ruiz, Dilani Lokuhetty, WCT standing editorial board, Iris D Nagtegaal, Wendy Cooper, Michael Eden, Andrew Field, Vicky Goh, Jennelle Hodge, James Kench, Joseph Khoury, Katia Leite, Zhiyong Liang, Daichi Maeda, George Netto, Bharat Rekhi, Miguel Reyes Múgica, Brian Rous, Ales Ryska, Shahin Sayed, Antonia R Sepulveda, Chanjuan Shi, Gary Tse   +48 more
wiley   +1 more source

Human papillomavirus‐associated adenoma of the anorectum

Histopathology, Volume 88, Issue 7, Page 1459-1463, June 2026.
Aims Human papillomavirus (HPV) is the most common sexually transmitted disease in the United States. HPV‐associated invasive anorectal adenocarcinoma has been previously described. In this study, we report the clinicopathological features of three HPV‐associated anorectal adenomas.
Paula Toro, Clifton Fulmer, Erica Savage, Xuefeng Zhang   +3 more
wiley   +1 more source