6 research outputs found
ADAMTS Proteases: Potential Biomarkers and Novel Therapeutic Targets for Cartilage Health
Get PDFThe equine locomotor system’s health plays a key role on athletic performance. Bone and joint diseases are the major causes of lameness. Poor performance and diseases lead to great economic loss to equestrian sports and horse breeders. Therefore, prevention, early diagnosis, and therapy of joint diseases are important. A disintegrin-like and metalloproteinase with thrombospondin motifs (ADAMTS) proteinase family plays an important role in many physiological processes such as tissue reorganization, coagulation, and angiogenesis. Aggrecan proteinases ADAMTS-4 and ADAMTS-5 are physiologically responsible for the restructuring with enzymatic cleavage of the cartilage, specific biomarkers in the synovium or body fluids for early diagnosis, and potential specific therapeutic targets in order to their role on degenerative joint diseases physiopathology in humans and various animals
Upregulation of p53 by tannic acid treatment suppresses the proliferation of human colorectal carcinoma
Get PDFThe present study\u27s objective is to clarify the molecular mechanisms of tannic acid effects on the viability of human colorectal carcinoma (CRC). Tannic acid is stable for up to 48 h and is localized in both cytoplasm and nucleus. It dose-dependently inhibited the viability of CRC cell lines; SW-620 and HT-29 with IC50 values of 7.2 ± 0.8 and 37.6 ± 1.4 µmol L–1. Besides, metastatic, invasive, and colony formation properties of CRC cells were significantly inhibited following the tannic acid treatment (p < 0.001). Tannic acid has been found to modulate enzyme, protein, and gene expressions of NQO1 in different levels and the upregulation of protein/gene expressions of p53 (p < 0.001), which leads the cells to trigger apoptosis. In conclusion, the present in vitro study may supply a significant background for in vivo studies in which the molecular mechanisms of antioxidant and chemopreventive activities of tannic acid will completely clarify
Effect of different light intensities on prolactin and cortisol plasma concentration in farming African catfish (Clarias gariepinus) in RAS with low-water exchange
Get PDFIn the Bulgarian aquaculture sector, focusing research efforts on the technical specifications of the cultivation of African catfish (Clarias gariepinus) is important due to the need for more information. We aimed to assess the impact of light intensities on prolactin and cortisol levels as stress markers in African catfish. Fish were acclimated over an appropriate period to the short photoperiod (16D and 8L) and then distributed randomly to three groups, each separated by sex. Fish exposed to different light intensities (63, 51, and 40 lux, respectively) were followed for 45 days by lux meter. Blood samples were collected from the caudal vein using a 2 ml K2EDTA-coated syringe. A laser fluorescence reader assayed plasma prolactin and cortisol. The pituitary was removed from anesthetized fish and fixed for histological examinations. The results of our study suggest that increasing light intensity increases prolactin and cortisol levels in African catfish
