in this research, the influence of adding micro- and nano- sized calcium carbonate powders to nylon-66 was investigated. mechanical properties of micro and nano- composites, including tensile strength, elongation, and young’s modulus, before and after ageing, were determined and analyzed. for this purpose, micro- and nano-sized caco3 particles were used as fillers to prepare micro-composites (c...

background: pre-eclampsia (pe) is one of the most important and life-threatening pregnancy disorders that affect at least 3-5% of all pregnancies. imbalance in helper t cell functions may play a role in predisposing to pe or severity of the disease. elevated frequencies of th17 cells in the peripheral blood of pe patients have been reported. several single nucleotide polymorphisms (snp) within ...

immune responses play critical roles in the leishmaniasis eradication. il-10 is a key regulator of immune responses, and the polymorphisms within its promoter region are associated with alteration in its expression. therefore, this study was designed to examine the correlation between polymorphism at the -1082 position of the il-10 gene and visceral leishmaniasis (vl).the il-10 -1082 polymorphi...

background: elevated level of plasma homocysteine has been related to various diseases. patients with hyperhomocysteinemia can develop hepatic steatosis and fibrosis. we hypothesized that oxidative stress induced by homocysteine might play an important role in pathogenesis of liver injury. also, the cellular response designed to combat oxidative stress is primarily controlled by the transcripti...

keeping in view the promising potential of carbonic anhydrase inhibitor based antimicrobials and enhancement of carbonic anhydrase inhibitory activity by metal complexes of sulfonamides, with an aim to develop better antimicrobial agents we have attempted investigation of antimicrobial activity of metal complexes of 4-(2'-hydroxy phenyl imino) phenyl sulphonamide. sulfanilamide was taken a...

multiple sclerosis (ms) is an autoimmune disease characterized by recurrent episodes of demyelination and axonal lesion mediated by cd4+ t cells with a proinflammatory t helper (th)1 and th17 phenotypes, macrophages, and soluble inflammatory mediators. the overactive  pro-inflammatory  th1  cells  and  clonal  expansion  of  b  cells  initiate  an inflammatory cascade with several cellular and ...

abstract breast cancer is one of the major health problems of the eastern world. regardless of the survival rate improvement with progression in screening and adjuvant systemic therapies, still one – third of the patients with primary breast cancer have recurrence of micro metastasis after 10 years.  it is important to discover a reliable biomarker for detection of breast cancer. the underlying...

background: it has been proposed that oxidative stress plays an important role in male infertility. the aims of this study were to compare seminal plasma levels of 15-f2t-isoprostane (8-iso-pgf2?), malondialdehyde (mda), and total (sum of free and bound) homocysteine (thcy) in normozoospermic vs. asthenozoospermic men, and to examine the relationships between thcy and lipid peroxidation product...

introduction: oxidative stress seems to play a critical role in the degeneration of dopaminergic neurons in parkinson’s disease (pd). antioxidant compounds can deactivate and scavenge free radical. olive leaves are considered as a useful source of phenolic compounds. therefore, this study was designed to investigate the effects of methanolic olive leaf extract (ole) on neurobehavioral activity ...

neuropeptides, possessing specific and functional receptors on various cells of the immune system, have the potential to regulate immune responses; and the macrophages as important components of defense against various agents, are at their influence. in this study the effect of neuropeptides substance p (sp) and calcitonin gene-related peptide (cgrp) on il-1 beta production by herpes sim¬plex t...