As an important gaseous regulator, hydrogen sulfide (H2S) is involved in various aspects of plant processes, including seed germination, stomatal movement, and postharvest senescence. The preservation capacity Lanzhou lily (Lilium davidii var. unicolor Salisb) scales fumigated with or without exogenously applied sodium hydrosulfide (NaHS, a H2S donor) was investigated the current study. Results...

Cigarette smoke (CS) is a rich source of radicals, predisposing the cell to oxidative stress resulting in inflammation. Chronic inflammation is a recognized risk factor for carcinogenesis. Cyclooxygenase-2 (COX-2) is a mediator of inflammatory pathway and may, therefore, contribute to carcinogenesis. There are several reports that suggest the association between CS and COX-2 associated risk to ...

The role of mitogen-activated protein kinase (MAPK) in abscisic acid (ABA)-induced antioxidant defense was investigated in leaves of maize (Zea mays) plants. Treatments with ABA or H(2)O(2) induced the activation of a 46-kD MAPK and enhanced the expression of the antioxidant genes CAT1, cAPX, and GR1 and the total activities of the antioxidant enzymes catalase, ascorbate peroxidase, glutathione...

Necrotizing enterocolitis (NEC) is a neonatal intestinal disease associated with oxidative stress. The targets of peroxidation and the role innate epithelial antioxidant defense system are ill-defined. We hypothesized that stress in NEC correlates oxidized GSH redox potentials, lipid peroxidation, dysfunctional system. Methods: Intestinal samples from infants +/− were generated into enteroids i...

background: leptin and its receptor are present in spermatozoa; however, the role of leptin in sperm function is still controversial. our present study aimed at demonstrating the effect of cryopreservation on sperm dna fragmentation (dnaf) and investigating the possible effects of sperm capacitation techniques and leptin in vitro incubation on frozen-thawed sperm dnaf and oxidative stress. meth...

Background: Oral cancer is among the 10 most common cancers worldwide with an increasing global incidence. Compromised antioxidant defense system plays a role in occurrence of cancer. This study evaluated the salivary antioxidant level of oral cancer patients compared to a control group. Patients and Methods: This case-control study was conducted on 22 oral squamous cell carcinoma patients pre...