The tensile strength of rat tail tendons of animals wtih a different age is more influenced by D-Penicillamine (DPA) in younger rats than in elderly rats. DPA has the best effect in the regions with the highest collagen turnover. After the use of DPA the collagen of tails of the elderly rats resembles the collagen of the younger animals. The reason of this alteration is probably a lower degree of cross-links of the collagen after the use of DPA.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
The relationship between spontaneous cystic degeneration and pseudocapillarization in sinusoids in the liver of aged Sprague-Dawley rats.
J Toxicol Pathol
January 2025
The Institute of Environmental Toxicology, 4321 Uchimoriya-machi, Joso-shi, Ibaraki 303-0043, Japan.
Cystic degeneration (CD) in the liver is a cyst-like lesion composed of one or more pseudocysts lacking lining cells, occurring spontaneously in rats older than 12 months, with a male predilection. In this study, 32 CDs were identified in 23 out of 104 non-treated, control male Sprague-Dawley rats from two combined chronic toxicity and carcinogenicity studies with agrochemicals. They were examined histologically, histochemically, and immunohistochemically to assess the pathogenesis and pathological significance of CD, focusing on pseudocapillarization in aged rat liver.
View Article and Find Full Text PDFExploring the Mechanism of Acupuncture in Improving Ovarian Function in Rats with Poor Ovarian Response Using High-Throughput Sequencing.
Comb Chem High Throughput Screen
January 2025
Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shierqiao Road, Jinniu District, Chengdu, Sichuan, 610072, P.R. China.
Objective: This study aimed to investigate the possible mechanism through which acupuncture protects ovaries with Poor Ovarian Response (POR) in rats based on microRNA (miRNA).
Methods: Thirty-six SPF SD female non-pregnant rats aged 8 weeks were randomly divided into the blank group, model group, and acupuncture group, with 12 rats in each group. According to the group, the rats were given gavage of Tripterygium wilfordii polyglycosides suspension for 14 days to establish the model of POR, and then the rats were treated with acupuncture for 2 weeks, once a day, for 20 minutes.
Study on the effects of Mogroside V in inhibiting NLRP3-mediated granulosa cell pyroptosis and insulin resistance to improve PCOS.
J Ovarian Res
January 2025
The First Affiliated Hospital, Gynecology&Obstetrics and Reproductive Medical Center, School of Basic Medical Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
Objective: Polycystic Ovary Syndrome (PCOS) is a prevalent endocrinopathy in reproductive-aged women, contributing to 75% of infertility cases due to ovulatory dysfunction. The condition poses significant health and psychological challenges, making the study of its pathogenesis and treatment a research priority. This study investigates the effects of Mogroside V (MV) on PCOS, focusing on its anti-inflammatory and anti-insulin resistance properties.
View Article and Find Full Text PDFLateral hypothalamic area high-frequency deep brain stimulation rescues memory decline in aged rat: behavioral, molecular, and electrophysiological study.
Pflugers Arch
January 2025
Department of Neuroscience, Graduate School of Biomedical Sciences, Mayo Clinic College of Medicine, Phoenix, AZ, USA.
To examine the effect of DBS of the lateral hypothalamic area (LHA) on age-related memory changes, neuronal firing from CA1, oxidative stress, and the expression of Hsp70, BDNF, and synaptophysin. 72 male rats were randomly allocated into 6 equal groups: a) normal young group (8 W), b) sham young group, c) DBS young group, d) normal old group (24 months), e) sham old group and f) DBS old group. Memory tests (passive avoidance and Y maze), oxidative stress markers (MDA, catalase, and GSH) and expression of Nrf2, HO-1, Hsp70, BDNF, and synaptophysin were measured by the end of the experiment.
View Article and Find Full Text PDFPPARγ activation attenuates neonatal CRD-induced visceral pain sensitization and anxiety in male rats by alleviating oxidative stress.
BMC Gastroenterol
January 2025
Department of Anesthesiology, First Affiliated Hospital, Fujian Medical University, No. 20, Cha Zhong Road, Fuzhou, Fujian Province, People's Republic of China.
Background: Visceral pain sensitization and emotional reactions due to irritable bowel syndrome (IBS) occur frequently in the general population. Oxidative stress plays a crucial role in the pathogenesis of IBS. Previous studies have demonstrated that activation of peroxisome proliferator-activated receptor gamma (PPARγ) has analgesic effects.
View Article and Find Full Text PDFWant 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!