Background & Aims: The most significant cause of infertility in men is the genetic deletion in the azoospermia factor (AZF) region that is caused by the process of intra- and inter-chromosomal homologous recombination in amplicons. Homologous recombination could also result in partial deletions in AZF region. The aim of this research was to determine the association between the partial AZFc del...

The binding data for interaction of a homologous series of n-alkyl sulfates with alkyl chainlengths from C8 to C12 with insulin were analyzed on basis of Hill equation for two classes ofbinding sites .The intrinsic Gibbs free energies were calculated and resolute on basis ofelectrostatic and hydrophobic contributions The estimation of these contributions reveals themajor role of electrostatic i...

The RAD51 protein has been shown to participate in homologous recombination by promoting ATP-dependent homologous pairing and strand transfer reactions. In the present study, we have investigated the possible involvement of RAD51 in non-homologous recombination. We demonstrate that overexpression of CgRAD51 enhances the frequency of spontaneous non-homologous recombination in the hprt gene of C...

When can surgery on a null-homologous knot K in rational homology sphere produce non-separating sphere? We use Heegaard Floer to give sufficient conditions for be unknotted. also discuss some applications cobordism, concordance, and Mazur manifolds.

Introduction: Experimental autoimmune (allergic) encephalomyelitis (EAE) induced by intradermal injection of ho­mogenate the brain, spinal cord and peripheral nerve with Freund’s stimulator, refers to a true disease nervous system.
 Materials methods: studies were conducted on white nonlinear rats. To induce experimental aller­gic (EAE), homologous brain homogenates was used, which leads a...

Since the report of first cases pneumonia caused by SARS-CoV-2 in December 2019, COVID-19 has become a pandemic and is globally overwhelming healthcare systems. The symptoms vary from asymptomatic infection to severe complicated with acute respiratory distress syndrome (ARDS) multiple organ failure leading death. estimated case-fatality rate among infected patients Wuhan, city where case appear...

We investigate the cause of spatial superexchange anisotropy in a family copper-based, quasi-two-dimensional materials with very similar geometries. The compounds this differ mainly their inter-layer separation but they have different magnetic interactions, even within basal plane. use density functional theory and Wannier functions to parameterize two complimentary tight-binding models show th...

ABSTRACT The DNA damage response (DDR) is the signaling cascade that recognizes double-strand breaks (DSBs) and promotes their resolution via repair pathways of non-homologous end joining (NHEJ) or homologous recombination (HR). We others have shown DDR activation requires DROSHA; however, whether DROSHA exerts its functions by associating with sites, what controls recruitment, how influences r...

In the last decades researchers had focused on developing a vaccine against tick based on protective antigen. Recombinant vaccines based on concealed antigen from Boophilus microplus have been developed in Australia and Cuba by the name of TICKGARD and GAVAC (De La Fuente and Kocan, 2006). Further studies on this antigen have shown some extent of protection against other species (De Vos et al.,...