Yazar "Him, Aydin" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Consequences of Neurite Transection In Vitro
    (MARY ANN LIEBERT INC, 2012) Cengiz, Nurettin; Ozturk, Gurkan; Erdogan, Ender; Him, Aydin; Oguz, Elif Kaval
    In order to quantify degenerative and regenerative changes and analyze the contribution of multiple factors to the outcome after neurite transection, we cultured adult mouse dorsal root ganglion neurons, and with a precise laser beam, we transected the nerve fibers they extended. Cell preparations were continuously visualized for 24 h with time-lapse microscopy. More distal cuts caused a more elongated field of degeneration, while thicker neurites degenerated faster than thinner ones. Transected neurites degenerated more if the uncut neurites of the same neuron simultaneously degenerated. If any of these uncut processes regenerated, the transected neurites underwent less degeneration. Regeneration of neurites was limited to distal cuts. Unipolar neurons had shorter regeneration than multipolar ones. Branching slowed the regenerative process, while simultaneous degeneration of uncut neurites increased it. Proximal lesions, small neuronal size, and extensive and rapid neurite degeneration were predictive of death of an injured neuron, which typically displayed necrotic rather than apoptotic form. In conclusion, this in vitro model proved useful in unmasking many new aspects and correlates of mechanically-induced neurite injury.
  • Küçük Resim Yok
    Öğe
    Investigation of the Hepatoprotective Effects of Sesame (Sesamum indicum L.) in Carbon Tetrachloride-Induced Liver Toxicity
    (SPRINGER, 2013) Cengiz, Nureddin; Kavak, Servet; Guzel, Ali; Ozbek, Hanefi; Bektas, Hava; Him, Aydin; Erdogan, Ender
    More than 600 chemicals can cause damage in liver, one of which is carbon tetrachloride (CCl4). Hepatoprotective agents could prevent tissue damage and reduce morbidity and mortality rates; such agents may include alternative or folkloric treatments. We investigated sesame (Sesamum indicum L.) for its hepatoprotective effect in CCl4-induced experimental liver damage. To this end, 0.8 mg/kg of sesame fixed oil was provided intraperitoneally to rats whose livers were damaged by CCl4. Tissue and blood samples were taken at the end of the experiments and evaluated histologically and biochemically. Ballooning degenerations and an increase in lipid droplets in liver parenchyma and increases in serum alanine transaminase, aspartate transaminase, and bilirubin were found in the CCl4 group. Biochemical and histopathological findings in the sesame fixed oil treated group were not significantly different from the CCl4 group. Sesame did not show a hepatoprotective effect in CCl4-induced liver toxicity.