Equine Endocrine Disease: Challenges With Case Definition for Research.

J Equine Vet Sci

School of Veterinary Science, Institute of Infection, Ecological and Veterinary Sciences, the University of Liverpool, Neston, UK.

Published: May 2023

Equine endocrine disease is an important area for equine research, requiring an appropriate case definition for inclusion and criteria for exclusion from disease. Defining a case for research may be different from criteria for clinical diagnosis. Further, clinical diagnosis recommendations have been changing regularly, making this area challenging for equine scientists. This review discusses the diagnosis of major equine endocrine diseases, pituitary pars intermedia dysfunction, equine metabolic syndrome and insulin dysregulation, focusing on the most appropriate diagnostic methods for research case definitions. Different diagnostic methods, including use of reference intervals and clinical decision limits, will be discussed with their relative merits for use in case definition for research.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jevs.2023.104491DOI Listing

Publication Analysis

Top Keywords

equine endocrine
12
case definition
12
endocrine disease
8
clinical diagnosis
8
diagnostic methods
8
equine
6
case
5
disease challenges
4
challenges case
4
definition equine
4

Similar Publications

Background: Altered gut microbiota has been associated with dopaminergic degenerative diseases in people, but studies on horses with pituitary pars intermedia dysfunction (PPID) are lacking.

Hypothesis/objectives: Investigate the effect of PPID on fecal microbiota in horses.

Animals: Nine horses with PPID and 13 age-matched control horses.

View Article and Find Full Text PDF

Equine endometrosis is a major cause of infertility in mares and is characterized by degenerative, functional and fibrotic changes in the endometrium with increased collagen (COL) deposition. Transforming growth factor (TGF)-β1 is one of the major pro-fibrotic factors involved in the excessive deposition of extracellular matrix (ECM) components in the equine endometrium. It has been demonstrated that ovarian steroids, specifically 17β-estradiol (E2) and progesterone (P4), not only regulate the cyclicity of the estrous cycle, but also have been implicated as anti- or pro-fibrotic factors.

View Article and Find Full Text PDF

Background: Senility influences fertility in women and companion animals, especially horses.

Aim: This study aimed to investigate the effect of aging in horses on the daily changes in the dominant follicle (DF) dynamics and hemodynamics, antimüllerian hormone (AMH), enzymes, antioxidants, and ovarian hormones during the estrous cycle.

Methods: Ovaries of old mares ( = 5, age >20 years) and young native mares ( = 6, age <10 years) were scanned during 6 different estrous cycles from March 2022 to August 2023 with Doppler ultrasound.

View Article and Find Full Text PDF

In Brief: Formation and function of the corpus luteum strongly rely on active angiogenesis. This study demonstrates the role of the hypoxia-inducible factor (HIF) in luteinization with no effect on fertility.

Abstract: HIFs are transcription factors responsible for sensing low oxygen levels and, in response, inducing the transcription of numerous genes.

View Article and Find Full Text PDF

Context Antral follicle count (AFC) is reflective of ovarian reserve and linked to reproductive performance in mammalian females. We previously demonstrated earlier upregulation of endometrial oxytocin receptor transcription in heifers with low AFC, indicating an earlier onset of luteolysis. Aims We aimed to support the earlier onset of luteolysis in non-pregnant heifers with a low number of antral ovarian follicles (Open Low AFC) and hypothesized a reduced abundance of luteinizing hormone/choriogonadotropin receptor (LH/CG-R ) and increased abundance of thrombospondin-1 (THBS1 ) in luteal tissue of those heifers.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!