Antioxidant activity and protective effect of hydroxy derivatives of chalcones for sterlet (Acipenser ruthenus, Linnaeus, 1758) sperm.

The aim of this work is to study the effect of adding hydroxy derivatives of chalcones to the basic cryomedium on the ability of sterlet sperm to utilize superoxide and hydrogen peroxide, the intensity of lipid peroxidation of male fish germ cells, and their viability both before cryopreservation and after 3 days of freezing at liquid nitrogen temperature. The ability of phenolic derivatives of chalcones to increase the superoxide dismutase and catalase activities of sterlet sperm and to reduce the intensity of lipid peroxidation has been established. The antioxidant activity of the derivatives exceeds the effect of Trolox, which inhibits the functioning of the enzyme component of the antioxidant protection of fish sperm and promotes lipid peroxidation of fish sperm before cryopreservation.

Changes in Expression of Key Genes in Ceca of Chicken Broilers as Affected by Glyphosate, Antibiotics and a Coccidiostat.

Studies have shown the presence of residual amounts of the herbicide glyphosate in poultry feed, which leads to its bioaccumulation in the body. Recently, it has been established that exposure to low levels of glyphosate over a long period may have serious negative effects on poultry health. Moreover, combined exposure to several toxicants can potentially lead to additive and/or synergistic effects.

Assessing the Risk of Spreading and Its Toxins Within the Dairy Farm.

currently constitutes a major pathogen of the gastrointestinal tract, which poses a significant growing burden on medicine and veterinary medicine in many regions. A farm was assessed (feed table, silage pit, and feces (healthy animals, emaciated animals, and animals with mastitis)) for the presence of toxins using the PCR method and for the microbiome in cow feed and feces using NGS technology, one month apart. toxin A and binary toxin were detected in feed samples.

[Cerebrolysin in the preventive therapy of dementia in elderly patients with mild cognitive impairment: a three-year prospective comparative study].

Objective: To study the efficacy and safety of long-term (3 years) course Cerebrolysin therapy in an open comparative study as a means potentially capable of slowing or preventing the transition of MCI into dementia, as well as to analyze the possibility of Cerebrolysin preventive effect predicting based on clinical and biological parameters.

Material And Methods: In total, 100 patients with aMCI were included in the study, randomly assigned to 2 groups: patients of group 1 (=50) received annual course therapy with Cerebrolysin for 3 years (20 intravenous infusions of Cerebrolysin 20 ml in 100 ml of saline solution for 4 weeks). Group 2 patients underwent annual clinical examination, but did not receive therapy.

[Changes in the Genome of the Tick-Borne Encephalitis Virus during Cultivation].

The tick-borne encephalitis virus (TBEV) strain C11-13 (GenBank acc. no. OQ565596) of the Siberian genotype was previously isolated from the brain of a deceased person.