Animal models provide a valuable tool and resource for biomedical researchers as they investigate biological processes, disease pathogenesis, novel therapies, and toxicologic studies. Interpretation of animal model data requires knowledge not only of the processes/diseases being studied but also awareness of spontaneous conditions and background lesions in the model that can influence or even confound the study results. Species, breed/stock, sex, age, anatomy, physiology, diseases (noninfectious and infectious), and neoplastic processes are model features that can impact the results as well as study interpretation. Here, we review these features in several common laboratory animal species, including ferret, dog (beagle), pig, sheep, and goats.
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http://dx.doi.org/10.1093/ilar/ilab005 | DOI Listing |
Cureus
January 2025
Dermatology and Dermatologic Surgery, Prince Sultan Military Medical City, Riyadh, SAU.
Tumid lupus erythematosus (TLE) is a rare subtype of cutaneous lupus, which can present diagnostic challenges due to its overlapping features with other skin disorders. Understanding the clinical and histopathological characteristics of TLE is essential for accurate diagnosis and management. In this article, we describe a case of TLE in a 45-year-old man who presented with annular, urticarial, non-scarring plaques on the scalp associated with non-scarring alopecia in the affected area.
View Article and Find Full Text PDFJB JS Open Access
January 2025
Gluck Equine Research Center, Department of Veterinary Science, Martin-Gatton College of Agriculture, Food and Environment, University of Kentucky, Lexington, Kentucky.
Background: Therapies for cartilage restoration are of great interest, but current options provide limited results. In salamanders, interzone (IZN) tissue can regenerate large joint lesions. The mammalian homolog to this tissue exists during fetal development and exhibits remarkable chondrogenesis in vitro.
View Article and Find Full Text PDFWorld J Gastrointest Oncol
January 2025
Pathology Department, Xuanhan County People's Hospital, Dazhou 636150, Sichuan Province, China.
Background: Pancreatic cancer remains one of the most lethal malignancies worldwide, with a poor prognosis often attributed to late diagnosis. Understanding the correlation between pathological type and imaging features is crucial for early detection and appropriate treatment planning.
Aim: To retrospectively analyze the relationship between different pathological types of pancreatic cancer and their corresponding imaging features.
World J Gastrointest Oncol
January 2025
Department of Hepatobiliary Pancreatic Surgery, Peking University First Hospital, Beijing 100034, China.
Background: The liver is the most common site of digestive system tumor metastasis, but not all liver metastases can be traced back to the primary lesions. Although it is unusual, syphilis can impact the liver, manifesting as syphilitic hepatitis with inflammatory nodules, which might be misdiagnosed as metastasis.
Case Summary: This case report involves a 46-year-old female who developed right upper abdominal pain and intermittent low fever that persisted for more than three months.
J Arrhythm
February 2025
Department of Cardiology Institute of Medicine, University of Tsukuba Tsukuba Japan.
Background/objectives: Very high-power and short-duration (vHPSD) ablation with QDOT MICRO™ facilitates speedy and safe ablation for pulmonary vein isolation. A brief time interval between ablating two neighboring sites with vHPSD may potentially influence the size and geometry of the lesions. This study evaluates lesion formation when delivering adjacent applications using vHPSD at various inter-lesion times (ILTs).
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