نتایج جستجو برای: exon deletion
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background: ataxia with oculomotor apraxia type 1 (aoa1) shows early onset with autosomal recessive inheritance and is caused by a mutation in the aprataxin (aptx) gene encoding for the aptx protein. methods: in this study, a 7-year-old girl born of a first-cousin consanguineous marriage was described with early-onset progressive ataxia and aoa, with increased cholesterol concentration and decr...
Duchenne muscular dystrophy has a severe disease course, though variability exists. Case reports suggest a milder disease course of patients amenable to exon 44 skipping. In this study, we analyzed this and show that age at wheelchair dependence in patients with a dystrophin deletion requiring exon 44 skipping is postponed compared to patients with a deletion skippable by exon 45, 51 and 53 (10...
introduction oculocutaneous albinism (oca) is a genetically heterogeneous autosomal recessive genetic disorder that is characterized by reduced or completely absent pigmentation in the hair, skin, and eyes. conclusions a novel homozygous mutation, the deletion of exons 1 - 5 on the tyr gene, was found on the molecular genetic testing of this patient. exon 1 - 5 deletion on tyr causes a lack of ...
Background ISTS defect in which sperm tail is short and fibrous sheath and axoneme are disorganized, is one of the syndromes that cause male infertility. Although a few studies have been done in this regard, its exact etiology in human is unclear yet. Four candidate genes causing ISTS are SPEF2, RABL2B, and A-kinas anchoring proteins genes (AKAP3 and AKAP4). Proteins which coded by SPEF2 and RA...
Background Globozoospermia is a rare but severe teratozoospermia disorder which causes male infertility. Total globozoospermia is diagnosed by the presence of 100% roundheaded spermatozoa lacking an acrosome in semen analysis. Recent studies have shown that in large majority of globozoospermic patients, deletion of a 200 kb segment including the DPY19L2 gene occurs. Among all the genes in this ...
Supplementary Fig. 1. Segregation analysis in TCTEX1D2 families. Pedigree and segregation analysis in (a) family UCL82 and (b) INS, both consistent with autosomal recessive inheritance. (c) family UCL4 and (d) genomic PCRs in UCL4 of TCTEX1D2 exon 1 and exon 2 (affected by the deletion) plus exon 4 (not affected by the deletion). Children carrying the homozygous exon 1-2 TCTEX1D2 deletion are m...
Background: Male infertility is a Multifactorial syndrome encompassing a wide variety of disorders. In more than half of infertile men, the cause of their infertility is unknown (idiopathic) and could be congenital or acquired. Globozoospermia, also called round-headed spermatozoa, is a rare disease with incidence< 0.1% among male infertile patients. The most prominent feature of globozoospermi...
In genotyping a severe hemophilia B subject, exons 1-3 and 5-8 were normal. Exon 4 did not amplify, suggesting a partial gene deletion. Previously, a French family with an exon 4 deletion had severe haemophilia B with a circulating, dysfunctional factor IX protein missing its first growth factor-like domain; breakpoints were not analyzed. Using a 5' primer for exon 3 and a 3' primer for exon 5 ...
Many tyrosine kinase-driven cancers, including chronic myeloid leukemia (CML), are characterized by high response rates to specific tyrosine kinase inhibitors (TKIs) like imatinib. In East Asians, primary imatinib resistance is caused by a deletion polymorphism in Intron 2 of the BIM gene, whose product is required for TKI-induced apoptosis. The deletion biases BIM splicing from exon 4 to exon ...
Phenylketonuria (PKU) is an autosomal recessive genetic disorder caused by mutations of the gene encoding phenylalanine hydroxylase (PAH). More than 500 different PAH mutations have been identified and about 90% of these are single base mutations. Although the identification rate of the PAH mutations is generally very high, some variants remain unidentified. A fraction of these mutations are th...
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