There is a long history of hormones altering behavior and endocrinopathies playing a role in psychiatric disease. This article highlights the hormonal changes that occur with aging and the effects of these hormonal changes on the brain, concentrating not on the well-known psychiatric manifestations of endocrine diseases, but on the more subtle effects of hormones and metabolic alteration seen in many older persons. The article focuses predominately on the role of hormones in cognition, as dementia and mild cognitive impairment are major problems in the older individual.
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http://dx.doi.org/10.1016/j.cger.2009.12.004 | DOI Listing |
Andrology
December 2024
Interdisciplinary Department of Medicine, School of Medicine, University of Bari "Aldo Moro", Bari, Italy.
Background: Evidence indicates a wide range of andrological alterations in patients with the Severe Acute Respiratory Syndrome CoronaVirus 2 (SARS-CoV-2) infection and Coronavirus Disease 2019 (COVID-19).
Aim: To provide an update on the andrological effects of SARS-CoV-2 infection and COVID-19.
Methods: PubMed/MEDLINE and Institutional websites were searched for randomized clinical trials, non-systematic reviews, systematic reviews, and meta-analyses.
Front Plant Sci
December 2024
Leibniz University Hannover, Institute of Horticultural Production Systems, Section Woody Plant and Propagation Physiology, Hannover, Germany.
Introduction: The presence of wounds in addition to the excision-induced wounds after severance from the stock plants is known to positively influence adventitious root formation of woody plant cuttings. Previous morphological studies highlighted laser wounding as a technique allowing to precisely control the decisive ablation depth. However, the biochemical processes involved in the response of rooting to the additional wounding remained unexplored.
View Article and Find Full Text PDFOpen Vet J
November 2024
Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
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.
BMC Genomics
December 2024
Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, 152 Luoyulu, Hongshan District, Wuhan, 430079, China.
Background: Nuptial pads, a typical sexually dimorphic trait in anurans, are located on the first digit of the male forelimb in Rana chensinensis and exhibit morphological changes synchronized with breeding cycles. However, the genetic mechanisms underlying its formation and seasonal changes remain poorly understood.
Results: To identify genes and biological processes associated with the development and seasonal variations of nuptial pads, we conducted a comprehensive transcriptome analysis on nuptial pads and hind toe skin across both sexes at different breeding periods in R.
BMC Genomics
December 2024
Section On Molecular Morphogenesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA.
Background: Thyroid hormone (T3) has an inhibitory effect on tissue/organ regeneration. It is still elusive how T3 regulates this process. It is well established that the developmental effects of T3 are primarily mediated through transcriptional regulation by thyroid hormone receptors (TRs).
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