نتایج جستجو برای: connexin 26
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Mutations in the genes encoding for gap junction proteins connexin 26 (Cx26) and connexin 30 (Cx30) have been linked to syndromic and nonsyndromic hearing loss in mice and humans. The release of ATP from connexin hemichannels in cochlear nonsensory cells has been proposed to be the main trigger for action potential activity in immature sensory inner hair cells (IHCs), which is crucial for the r...
autosomal recessive and sporadic non-syndromic hearing loss (arsnshl) is the major form of hereditary deafness.mutations in the gjb2 gene encoding the gap-junction protein connexin 26 have been identified to be highly associated with arsnshl. in this study we have analyzed 196 deaf subjects from 179 families having one or more deaf children in 3 proviences of iran, including kordestan, khuzesta...
OBJECTIVE To determine the spectrum of connexin 26 (Cx26) mutations and their phenotypes in children with sensorineural hearing loss (SNHL) or mixed hearing loss (MHL). DESIGN Children with SNHL or MHL were prospectively tested for mutations in the entire coding region of the Cx26 gene. PATIENTS Children with SNHL or MHL with no obvious etiology for the hearing loss. RESULTS Between Decem...
Introduction The first locus for nonsyndromic autosomal recessive hearing loss is on chromosome 13q11-22. The 35delG mutation is present in 80% of cases in which GJB2 is involved, which makes the study of this mutation very important. The viability and benefits of screening for mutations in the connexin 26 gene are now beginning to change the diagnostic evaluation and identification of the etio...
INTRODUCTION Mutations in GJB2 are the most common cause of non-syndromic autosomal recessive hearing impairment, ranging from mild to profound. Mutation analysis of this gene is widely available as a genetic diagnostic test. OBJECTIVE To assess a possible genotype-phenotype correlation for GJB2. DESIGN Retrospective analysis of audiometric data from people with hearing impairment, segregat...
UNLABELLED Mutations in the connexin 26 gene seem to be extremely common in non-syndromic hereditary deafness genesis, especially the 35delG, but there are still only a few studies that describe the audiometric characteristics of patients with these mutations. AIM to analyze the audiometric characteristics of patients with mutations in the connexin 26 gene in order to outline genotype-phenoty...
Though melatonin was known to regulate gap junctional intercellular communication (GJIC) in chick astrocytes and mouse hepatocytes, the underlying mechanism by melatonin was not elucidated in hydrogen peroxide- (H(2)O(2)-) treated HaCaT keratinocyte cells until now. In the current study, though melatonin at 2 mM and hydrogen peroxide (H(2)O(2)) at 300 μM showed weak cytotoxicity in HaCaT kerati...
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