The Impact of Genetic Polymorphisms on Genotoxicity (DNA Damage) Induced by Cigarette Smoke in Humans: A Systematic Review.

The present systematic review aims to put together human population studies that include some relationship between genetic polymorphisms and genotoxicity as well as to evaluate the quality of the published studies induced by cigarette smoke exposure in vivo. The present systematic review was built according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria. Different genotoxicity assays were used by different authors, although the major goal was the genotoxicity assessment by means of micronucleus, comet, sister chromatid exchange, and chromosomal aberration assays.

Myt1 kinase: An Emerging Cell Cycle Regulator for Cancer Therapeutics.

Cell cycle checkpoints are stringent quality control mechanisms that regulate cell cycle progression and division. Cancer cells often develop a dependency on the G2/M cell cycle checkpoint to facilitate DNA repair and resolve intrinsic or therapy-induced DNA damage. This dependency leads to therapy resistance, continuous cell division, and disease progression.

Morphometric analysis of extraocular muscles and proptosis by computed tomography in Graves' orbitopathy.

Objective: To assess the prevalence of changes on computed tomography (CT) in Graves' orbitopathy (GO) and to correlate those changes with disease activity, as well as with clinical and biochemical variables.

Materials And Methods: This was a retrospective study, conducted at a tertiary hospital, of clinical, biochemical, and imaging data from consecutive patients with GO who underwent at least one orbital CT scan between July 2012 and December 2020. A single observer quantified the thickness of the extraocular muscles and the degree of proptosis.

Nutritional Value of for Weaner Piglets.

This study evaluates the nutritional value of spray-dried biomass to infer its applicability for weaner piglet feeding. Twenty-four piglets were randomly allocated to four dietary treatments ( = 6) with increasing inclusion (0, 5, 10, and 15%) levels. After a 4-day adaptation period, the digestibility experiment lasted two weeks, with daily excreta collection.

The presence of sexed sperm in bovine oviduct epithelial cells alters the protein profile related to stress and immune response.

Although sperm sexing technology has progressed considerably in the last decade, there are still challenges to fully understand the reason for the low fertility of sexed sperm. Thus, we aimed to evaluate the effect of sexed and non-sexed sperm on the proteome of bovine oviduct epithelial cells (BOECs). Semen from six Nellore bulls was used and one ejaculate from each bull was collected and separated into three fractions: non-sexed, sexed for X-sperm and sexed for Y-sperm.