The yeast Saccharomyces cerevisiae is a useful model organism for studying lead (Pb) toxicity. Yeast cells of a laboratory S. cerevisiae strain (WT strain) were incubated with Pb concentrations up to 1,000 μmol/l for 3 h. Cells exposed to Pb lost proliferation capacity without damage to the cell membrane, and they accumulated intracellular superoxide anion (O2 ) and hydrogen peroxide (H2O2). Th...

From the thymus to the peripheral lymph nodes, integrin-mediated interactions with neighbor cells and the extracellular matrix tune T cell behavior by organizing cytoskeletal remodeling and modulating receptor signaling. LFA-1 (αLβ2 integrin) and VLA-4 (α4β1 integrin) play a key role throughout the T cell lifecycle from thymocyte differentiation to lymphocyte extravasation and finally play a fu...

There is an unsettled debate about the role of magnesium as a 'chronic regulator' of biological functions, as opposed to the well-known role for calcium as an 'acute regulator'. New and old findings appear to delineate an increasingly complex and important role for magnesium in many cellular functions. This review summarizes the available evidence for a link between the regulation of intracellu...

Sclerotinia sclerotiorum causes serious yield losses in oilseed crops worldwide. Bacillus subtilis Tu-100 significantly reduced (P≤0.05) the incidence of disease caused by S. sclerotiorum on oilseed rape at harvest in two trials conducted in fields artificially infested with this pathogen. Mean plant dry weight was significantly greater (P≤0.05) and mean plant length was significantly greater (...

Background Neonatal sepsis is one of the most critical illness in neonates that is responsible for a great proportion of morbidity and mortality in neonates so early diagnosis and identification of high risk cases is a challenging aim of our study. The purpose of this study was to investigate the prognostic value of red cell distribution width (RDW), in neonatal sepsis at the time of admission ...

Both cleavage-stage and blastocyst-stage embryo transfer policieshave advantages and drawbacks.Potential advantages of blastocyst culture and transfer in human IVF include: i. synchronization of the embryo with the female tract leading to increasedimplantation rates; thereby, reducing the need for multipleembryo transfers, ii. assessment of viability of an embryobefore transfer. This can be ach...

Neuroimmune interactions have been revealed to be at the centre stage of tissue defence, organ homeostasis, and organismal physiology. Neuronal immune cell subsets shown colocalize in discrete environments, forming neuroimmune units that constitute basis for bidirectional interactions. These multitissue drive coordinated responses local systemic signals, which represents an important challenge ...

CD4+ T cells have orchestrated and regulated immunity since the introduction of jawed vertebrates, yet our understanding cell evolution, development, cellular physiology has only begun to be unearthed in past few decades. Discoveries genetic diseases that ablate this population provided insight into their critical functions while transcriptomics, proteomics, high-resolution microscopy recently ...