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An update on clinical, pathological, diagnostic, and therapeutic perspectives of childhood leukodystrophies.
Authors: Ashrafi MR, Amanat M, Garshasbi M, Kameli R, Nilipour Y, Heidari M, Rezaei Z, Tavasoli AR Abstract Introduction: Leukodystrophies constitute heterogenous group of rare heritable disorders primarily affecting the white matter of central nervous system. These conditions are often under-appreciated among physicians. The first clinical manifestations of leukodystrophies are often nonspecific and can occur in different ages from neonatal to late adulthood periods. The diagnosis is, therefore, challenging in most cases.Area covered: Herein, the authors discuss different aspects of leukodystrophies. The authors used...
Source: Expert Review of Neurotherapeutics - December 13, 2019 Category: Neurology Tags: Expert Rev Neurother Source Type: research

Aging and regeneration in vertebrates.
Abstract Aging is marked by changes that affect organs and resident stem cell function. Shorting of telomeres, DNA damage, oxidative stress, deregulation of genes and proteins, impaired cell-cell communication, and an altered systemic environment cause the eventual demise of cells. At the same time, reparative activities also decline. It is intriguing to correlate aging with the decline of regenerative abilities. Animal models with strong regenerative capabilities imply that aging processes might not be affecting regeneration. In this review, we selectively present age-dependent changes in stem/progenitor cells th...
Source: Current Topics in Developmental Biology - February 15, 2014 Category: Biology Authors: Sousounis K, Baddour JA, Tsonis PA Tags: Curr Top Dev Biol Source Type: research