we studied 74 patients with lebers hereditary optic neuropathy (lhon) to investigate causative mtdna mutations (g3460a, g11778a, t14484c, g4459a) in iranian lhon patients. fifty two patients carried the mitochondrial dna (mtdna) g11778a mutation, while one had the t14484c mutation 4 patients had the g3460a mutation and one had the g14459a mutation. our results showed a similarity in the pattern...

background and aims: lamivudine is amongst the antiviral for drug chronic hepatitis b treatment. during therapy with lamivudine, variants may emerge with ymdd mutation in the reverse transcriptase (rt) region of polymerase gene. this mutation might have a role in drug resistant for hbv. materials and methods: hbv dna extraction from serum sample of 88 patients, were subjected to nested pcr for ...

abstract objective: detection of p53 gene mutation on its codon 248 between iranian women with breast cancer by pcr-rflp. material and methods: dna extraction of tumor tissues was performed in 53 patients with primary breast cancer. designing primer for the sub-studying codon was performed with nti-vector software and detection of codon 248 mutation was done by msp i pcr_rflp. results: the soma...

Background: The immune antigen of Bacillus anthracis is a protein that can attach to the surface receptor of all human cells. At the surface of cancer cells, there is a receptor that activates the uPA (Urokinase plasminogen) that do not exist in normal human cells. Objectives: The aim of this study was changing the location of the attachment of the PA gene by a dir...

Background: The immune antigen of Bacillus anthracis is a protein that can attach to the surface receptor of all human cells. At the surface of cancer cells, there is a receptor that activates the uPA (Urokinase plasminogen) that do not exist in normal human cells. Objectives: The aim of this study was changing the location of the attachment of the PA gene by a dir...

cd8 deficiency is a rare primary immunodeficiency with low or absent peripheral cd8 cells which results from tap deficiency, zap 70 deficiency and cd8 α gene mutation. we report a 14 year old female who presented with a history of recurrent pneumonia, bronchiectasis, otitis, severe varicella, herpetic lesions of mouth, bilateral uveitis, and cataract formation since the age of 8 years. she had ...

An increased proportion of couples require a medical help to conceive and 1-3.6% of pregnancies in occidental countries are obtained thanks to a Assistance Reproduction For more than half of them the cause of these dysfunctions remains unknown and in vitro fertilization is often proposed as a universal answer to a complex problem. Most of the proposed treatments are often empirical and little h...