نتایج جستجو برای: cell nucleus

تعداد نتایج: 1750424  

Journal: :iranian journal of allergy, asthma and immunology 0
tahereh zieh asghar safarifard mahin nikogoftar

apoptosis, or active cell death, is a specific mode of cell death, which is characterized by morphological changes such as chromatin condensation, fragmentation of the nucleus, cytoplasmic retraction and appearance of apoptotic bodies' containing apparently intact organelles. apoptosis occurs in physiological conditions as a regulatory mechanism of tissue growth, where cell proliferation is bal...

Journal: :iranian journal of pharmaceutical research 0
maliheh mamashli department of biology, school of sciences, tehran university of payame noor, tehran, iran. mina ramezani department of biology, school of sciences, islamic azad university, ashtian branch, tehran, iran. maliheh parsa department of toxicology and pharmacology, faculty of pharmacy, tehran university of medical sciences (tums), tehran, iran. seyyed nasser ostad department of toxicology and pharmacology, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences (tums), tehran, iran.

enamel matrix derivative emdogain (emd) is widely used in periodontal treatment in spite of the fact that its effect on the developing embryo has not been elucidated. the aim of this study was to investigate the teratogenic effect of emd on the rat embryo neural crest cells. the neural crest is a unique population of cells that migrates from the dorsal neural tube along defined pathways and pro...

Journal: :Memorias do Instituto Oswaldo Cruz 1997
L S Vieira J D Lima M F Ribeiro I A Bozzi E R Camargos

The ultrastructure of endogenous stages of Eimeria ninakohlyakimovae was observed in epithelial cells of cecum and colon crypts from a goat experimentally infected with 2.0 x 10(5) oocysts/kg. The secondary meronts developed above the nucleus of the host cell. The nucleus first divides and merozoites then form on the surface of multinucleated meronts. Free merozoites in the parasitophorous vacu...

Introduction: Auger electron based radioimmunotherapy (RIT) using 111In-DOTA-trastuzumab (111In-DOTA-antiHer2) feasibility was studied in vitro on a HER2/neu positive cell line, SkBr3. Methods:111In-DOTA-antiHer2 was prepared according to the optimized conditions followed by quality control tests including radioch...

Journal: :Journal of the agricultural chemical society of Japan 1990

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