نتایج جستجو برای: microcephaly
تعداد نتایج: 3104 فیلتر نتایج به سال:
OBJECTIVE This study aimed to critically review the literature available regarding the Zika virus outbreak in Brazil and its possible association with microcephaly cases. SOURCES Experts from Instituto do Cérebro do Rio Grande do Sul performed a critical (nonsystematic) literature review regarding different aspects of the Zika virus outbreak in Brazil, such as transmission, epidemiology, diag...
OBJECTIVES To provide contemporary estimates of the prevalence of microcephaly in Europe, determine if the diagnosis of microcephaly is consistent across Europe, and evaluate whether changes in prevalence would be detected using the current European surveillance performed by EUROCAT (the European Surveillance of Congenital Anomalies). DESIGN Questionnaire and population based observational ...
Background: Human autosomal recessive primary microcephaly (MCPH) is a heterogeneous disorder with at least six genetic loci (MCPH1–6), with MCPH5, caused by ASPM mutation, being the most common. Despite the high prevalence of epilepsy in microcephaly patients, microcephaly with frequent seizures has been excluded from the ascertainment of MCPH. Here, we report a pedigree with multiple affected...
The underlying etiologies of genetic congenital microcephaly are complex and multifactorial. Recently, with the exponential growth in the identification and characterization of novel genetic causes of congenital microcephaly, there has been a consolidation and emergence of certain themes concerning underlying pathomechanisms. These include abnormal mitotic microtubule spindle structure, numeric...
BACKGROUND Human autosomal recessive primary microcephaly (MCPH) is a heterogeneous disorder with at least six genetic loci (MCPH1-6), with MCPH5, caused by ASPM mutation, being the most common. Despite the high prevalence of epilepsy in microcephaly patients, microcephaly with frequent seizures has been excluded from the ascertainment of MCPH. Here, we report a pedigree with multiple affected ...
Seckel Syndrome (SS) and Primary Microcephaly (MCPH) are disorders exhibiting marked microcephaly with a head circumference less than three standard deviations below the mean. ATR-Seckel Syndrome is conferred by mutations in ataxia and telangiectasia and Rad3 related (ATR), a kinase that activates a DNA damage signalling response. Cell lines from additional SS patients, who are normal for ATR, ...
The study of human developmental microcephaly is providing important insights into brain development. It has become clear that developmental microcephalies are associated with abnormalities in cellular production, and that the pathophysiology of microcephaly provides remarkable insights into how the brain generates the proper number of neurons that determine brain size. Most of the genetic caus...
The role of microcephaly genes in normal variation in human brain size has been controversial. New studies show that a link does exist and imply sex-specificity in microcephaly gene action during neurogenesis.
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