The biological mechanisms that give rise to age-related hearing loss (ARHL) are still poorly understood. However, there is growing recognition that oxidative stress may be an important factor. To address this issue, we measured the changes in the expression of cochlear oxidative stress and antioxidant defense-related genes in young (2 months old), middle-aged (12 months old), and old (21-25 mon...

We conducted a comparative analysis of biochemical parameters for the ascorbate-glutathione cycle in non-transgenic and transgenic Nicotiana tabacum, plants cultivated heavy metal polluted soils. Transgenic had their genome bacterial acdS-gene encoding 1-aminocyclopropane-1-carboxylate deaminase (ACC-deaminase) enzyme. The introduction elevated concentrations copper, chromium, lead ions into so...

Aim Diabetic retinopathy is a microvascular complication of diabetes that leads to blindness. Hyperglycemia causes oxidative stress, which is an important cause in the pathogenesis of microangiopathy. The aim of this study was to investigate the potential protective effects of astragaloside IV (AS-IV) in retinal capillary endothelial cells (RCECs) incubated with high glucose conditions. Metho...

Many in vitro tumor models have been examined to help understand the precise mechanisms responsible for drug resistance. The importance of these results in vivo remains uncertain. MatB 13762 is a rat mammary adenocarcinoma cell line that can be grown both in vitro and as a solid tumor in Fischer 344 rats, thus permitting the examination of tumor cell drug resistance under both conditions. Two c...

Increased oxidative stress in the human brain is observed neurodegenerative diseases such as Parkinson’s disease (PD) and Alzheimer’s (AD), considered to be a major cause of progression these states. A very long-chain fatty acid, nervonic acid (NA), main found various sphingolipid species central nervous system. NA plays an important role forming plasma membrane’s lipid bilayer maintaining norm...

To analyze the protective effect and mechanism of beta-asarone from Acorus tatarinowii on neuron injury in rats with Parkinson's disease. Thirty five male Sprague Dawley were randomly selected to establish rat model The divided into 5 groups as sham operation group, low dose medium group high betaasarone 7 each group. Rats injected same amount normal saline, while middle 10 mg/kg, 20 mg/kg 40 r...

Gastric ulcers have been considered as a major problem worldwide. This study investigated the protective synergistic effect of novel nutrient formulation for protection and treatment indomethacin-induced gastric ulcer in rat model. 24, 8 w old male rats with body weight between 220 240 g, were divided into four groups used this study. Group 1 consists healthy controls group 2 ulcerative animals...

TR- mutant rats have an autosomal recessive mutation that is expressed as a severely impaired hepatobiliary secretion of organic anions like bilirubin-(di)glucuronide and dibromosulphthalein (DBSP). In this paper, the hepatobiliary transport of glutathione and a glutathione conjugate was studied in normal Wistar rats and TR- rats. It was shown that glutathione is virtually absent from the bile ...