background mercury is one of the most toxic heavy metals. even a small amount of it is toxic for all living organisms. some of bacteria have developed special resistance mechanisms against mercury, in addition to resistant to different antibiotics. these bacteria usually acquire hg and antibiotic resistance genes via horizontal gene transfer in their habitat. objectives the aim of this study wa...

background: management of multiple sclerosis (ms) is based on the usage of immunosuppressive and immune-modulating medications. cytokines play an important role in the pathogenesis of ms. objective: to evaluate the effects of rapamycin on the concentrations of th1/th2/th17 serum cytokines in patients with ms. methods: six patients with relapsing remitting ms as a case group and 6 healthy indivi...

multiple sclerosis (ms) is the most prevalent disease caused by the inflammatory demyelinating process that causes progressive nervous system degeneration over the time. optical coherence tomography (oct) is a non-invasive optical imaging technology, which can measure the thickness of retinal nerve fiber layer as well as the diameter of the macula. the purpose of the study is evaluation oct fin...

involvement of the peripheral nervous system is one of the complications of multiple myeloma with a varying incidence of clinical and subclinical neuropathy in different studies. as most of the patients with multiple myeloma suffer from generalized systemic symptoms such as malaise, bone and low back pain, the clinical clues to the diagnosis of the neuropathy in its initial stages could be igno...

grain quality currently represents a major problem in high yielding rice production in iran and many other rice producing areas of the world. quality assessment of rice involves the function of sensory tests and physicochemical determinations based on the chemical composition, cooking quality, gelatinization temperature and physical properties of cooked rice. these research genetic materials we...

patients and methods this cross-sectional study was performed on 1202 ms patients in farshchian hospital, hamadan, in 2013. all patients were diagnosed with definite ms. a questionnaire was used to gather information; demographic characteristics, medical history, signs and symptoms at onset, course of disease, relatives with ms, and degree and type of relationship were recorded. conclusions the...

results the results showed that there was no statistical significant difference in distribution of genotype (aa, ac and cc) and allele (a and c) frequencies between ms patients and healthy controls (p = 0.901 and p = 0.728, respectively). conclusions in conclusion, it appears that the c424c/a polymorphism within the il-25 gene has no significant relationship with ms, and this polymorphism is pr...

granular cell tumors are rare neoplasms of uncertain histogenesis but with a typical histologic appearance composed of cells with characteristic granular cytoplasm. these tumors occur most often in adults as an asymptomatic solitary papule or nodule. multiple granular cell tumors are rare, especially in children and teenagers. we represent a case of multiple granular cell tumors in a 19-year-ol...

optic neuritis occurs in young patients, most often females, and presents as subacute monocular visual loss. periocular pain, particularly with eye movement occurs in the majority of cases. the retrobulbar form occurs in 65% of cases and is associated with normal optic disc appearance at onset. the central visual field is usually affected and an rapd and dyschromatopsia are present. brain magne...