Psychometric properties of the Global Psychotrauma Screen in the United States.

Background: Prior research assessing the psychometric properties of the Global Psychotrauma Screen provided support for its internal consistency reliability, construct validity, convergent validity, and divergent validity in several international samples, but not specifically in a U.S. subsample.

Immunosenescence-like state is accelerated by constant light exposure and counteracted by melatonin or turmeric administration through DJ-1/Nrf2 and P53/Bax pathways.

The awareness of the interrelationship between immunosenescence and constant light exposure can provide new insights into the consequences of excessive exposure to light at night due to light pollution or shift work. Here, we investigated whether constant light exposure (LL) acts as an inducer of immunosenescence. We also determined the role of melatonin or turmeric in reversing the putative effects of constant light and explored for the first time the underlying molecular mechanisms.

Melatonin and tumeric ameliorate aging-induced changes: implication of immunoglobulins, cytokines, DJ-1/NRF2 and apoptosis regulation.

Aging is associated with several biological, physiological, cellular and histological changes. In the present study, we investigated the effect of aging on different signaling pathways, including antioxidant system, apoptosis and immune status. Several natural products were used to ameliorate and block aging-related changes.

Therapeutic dose of green tea extract provokes liver damage and exacerbates paracetamol-induced hepatotoxicity in rats through oxidative stress and caspase 3-dependent apoptosis.

Green tea extract (GTE) is considered to be endowed with countless healthful properties. Nevertheless, data concerning the hepatoprotective activities of GTE and its utilization as a therapeutic intervention for paracetamol (APAP) overdose are conflicting and intriguing. The present study was undertaken to address the effect of therapeutic dose of GTE on the liver, evaluate the potential hepatoprotection of GTE against APAP-induced hepatotoxicity, asses the regenerative capacity of the liver after discontinuation of treatments, and explore the mechanisms underlying these effects.