نتایج جستجو برای: germinal cells

تعداد نتایج: 1386674  

Background: The effects of cumulus cells and the effectiveness of a PDE3 specific inhibitor (Cilostamide) in comparison with an adenylate cyclase activator (Forskolin) on the maturation rate and developmental competence of mouse germinal vesicle (GV) oocytes were evaluated Materials and Methods: Germinal vesicles (GV) oocytes of PMSG-primed mice were divided into cumulus denuded oocytes (CDOs) ...

2016
Irma Virant-Klun Martin Stimpfel

Small stem cells with diameters of up to 5 μm previously isolated from adult human ovaries indicated pluripotency and germinal lineage, especially primordial germ cells, and developed into primitive oocyte-like cells in vitro. Here, we show that a comparable population of small stem cells can be found in the ovarian tissue of women with borderline ovarian cancer, which, in contrast to small ste...

2010
Gisleine Fernanda França Harry J. Grier Irani Quagio-Grassiotto

Based on new knowledge coming from marine perciform species, the origin of oocytes and their development in the Ostariophysi, Gymnotus sylvius is described. In both Gymnotus sylvius and marine perciform fish, oogonia are found in the germinal epithelium that forms the surface of the ovarian lamellae. At the commencement of folliculogenesis, proliferation of oogonia and their entrance into meios...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده پزشکی 1391

هدف: کشت سلول های اسپرماتوگونی و تولید سلول های پر توان embryonic stem cells (es like cells) که دارای قابلیت بازسازی و تولید هرسه نوع لایه زایای جنینی می باشند، این سلول ها را به عنوان منبع کافی و جدیدی برای سلول درمانی و ترمیم در بیماریها از جمله بیماریهای نورودژنراتیو پیشنهاد می دهد. در تحقیق حاضر تمایز سلول های اسپرماتوگونی موش به سلول های شبه الیگودندروسیت و نقش آنها درمیلین سازی پس از پیون...

Journal: :Hinyokika kiyo. Acta urologica Japonica 1987
M Gotoh K Miyake H Mitsuya

The complex carbohydrates in the undescended and contralateral scrotal testes of patients with cryptorchidism, were examined by light microscopic histochemical methods, in comparison with those of normal testes. In the undescended testes, histochemical reactions for acidic and neutral complex carbohydrates were apparently weaker than in the normal testes, especially pronounced in the seminifero...

Journal: :Archives italiennes de biologie 2010
G Ponti P Crociara M Armentano L Bonfanti

Unlike non mammalian vertebrates, adult neurogenesis in mammals is detectable in highly restricted brain sites. Persistent neurogenesis is thought to depend on stem cells residing in neural stem cell niches which are remnants of the embryonic germinal layers. Local progenitors which retain some proliferative capacity have been identified in the mature brain parenchyma, yet they do not support a...

Journal: :The Journal of Experimental Medicine 1959
Robert C. Mellors Ralph Heimer Josué Corcos Leonhard Korngold

Fluorescein-labelled aggregated human gamma-globulin was found to react in precipitin-type tests with serums of individuals with rheumatoid arthritis. This reagent was also highly reactive and specific for the localization of rheumatoid factor in frozen sections of synovial membranes, lymph nodes, and subcutaneous nodules. In synovial membranes from patients with active rheumatoid arthritis, rh...

Journal: :Brain : a journal of neurology 2011
Marc R Del Bigio

In premature infants, germinal matrix haemorrhage in the brain is a common occurrence. However, cell proliferation and fate determination in the normal human germinal matrix is poorly understood. Human ganglionic eminence samples were collected prospectively from autopsies of premature and term infants with no evidence of pathological process (n=78; dying at post-menstrual age 14-88 weeks). The...

Journal: :Annals of the rheumatic diseases 1973
T Neumark K Farkas

The ultrastructural aspects of the lymphoid and plasma cell infiltrate in rheumatoid synovium have received little attention. We have therefore undertaken a study of the germinal follicles in rheumatoid synovium, and here draw attention to: (a) Cytoplasmic bridging between lymphocytes, plasma cells, and phagocytes; (b) Cytoplasmic and nuclear inclusions in lymphocytes; (c) Detachment of cytopla...

Journal: :Hematological oncology 2015
Ranjana H Advani Richard T Hoppe

Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) represents only ~5% of Hodgkin lymphoma (~1.5 per 1000000 people per year) [1,2].Microscopically, NLPHL displays a nodular growth pattern, although a diffuse growth pattern with prominent histiocytes and T cells can be seen in advanced or recurrent cases. The malignant cells of NLPHL, referred to as LP or ‘popcorn cells’ because of their m...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید