Effects of Psychogenic Stress Frequency during the Growth Stage on Oxidative Stress, Organ and Bone Development.

Background: This study aimed to examine the effects of psychogenic stress (PS) frequency on oxidative stress and organ development during growth and to gain fundamental insights into developmental processes during this period.

Methods: Four-week-old male Wistar rats were randomly assigned to a control and three PS groups according to PS frequencies. PS was induced using restraint and water immersion techniques once daily for 3 hr at a time for a period of 4 weeks.

Characterization of plasma polymerized acetonitrile film for fluorescence enhancement and its application to aptamer-based sandwich assay.

Among biosensing systems for sensitive diagnoses fluorescence enhancement techniques have attracted considerable attention. This study constructed a simple multilayered structure comprising a plane metal mirror coated with a plasma-polymerized film (PPF) as an optical interference layer on a glass slide for fluorescence enhancement. Plasma polymerization enables the easy deposition of organic thin films containing functional groups, such as amino groups.

Effects of psychogenic stress on oxidative stress and antioxidant capacity at different growth stages of rats: Experimental study.

This study examined the psychogenic stress (PS) effects on changes in oxidative stress and the antioxidant capacity of an organism at different growth stages. The experimental animals were male Wistar rats of five different ages from growth periods (GPs) to old age. The growth stages were randomly classified into control (C) and experimental (PS) groups.

Responses to oxidative stress and antioxidant capacity in rats at different growth stages.

[Purpose] Oxidative stress is regulated by antioxidant capacity . However, its impact on aging characteristics remains debatable. This study is first to report oxidative stress, antioxidant capacity, and their ratio in five age groups of rats, and aimed to provide basic data useful for disease prevention.