نتایج جستجو برای: follicular dynamics

تعداد نتایج: 464807  

Journal: :The Journal of clinical investigation 2012
Constantinos Petrovas Takuya Yamamoto Michael Y Gerner Kristin L Boswell Kaska Wloka Emily C Smith David R Ambrozak Netanya G Sandler Katherina J Timmer Xiaoyong Sun Li Pan Amanda Poholek Srinivas S Rao Jason M Brenchley S Munir Alam Georgia D Tomaras Mario Roederer Daniel C Douek Robert A Seder Ronald N Germain Elias K Haddad Richard A Koup

CD4 T follicular helper (TFH) cells interact with and stimulate the generation of antigen-specific B cells. TFH cell interaction with B cells correlates with production of SIV-specific immunoglobulins. However, the fate of TFH cells and their participation in SIV-induced antibody production is not well understood. We investigated the phenotype, function, location, and molecular signature of TFH...

Journal: :Reproduction, nutrition, developpement 1985
M A Driancourt W R Gibson L P Cahill

Whatever the stage of the cycle, follicles of various sizes are apparent on the surface of the ovary of sheep. No evidence of waves of follicular growth at fixed-time intervals has been found during the luteal phase, and growth probably occurs at random until the follicle attains a size of 4 to 7 mm. This shows that follicles can enlarge under a wide range of hormonal levels. The recruitment of...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2000
W S Hlavacek N I Stilianakis A S Perelson

In patients infected with human immunodeficiency virus type 1 (HIV-1), a large amount of virus is associated with follicular dendritic cells (FDCs) in lymphoid tissue. To assess the influence of FDCs on viral dynamics during antiretroviral therapy we have developed a mathematical model for treatment of HIV-1 infection that includes FDCs. Here, we use this model to analyse measurements of HIV-1 ...

2016
Jung Joo Hong Kyu-Tae Chang Francois Villinger

Although the dynamics of germinal center (GC) formation, follicular helper T (TFH) cell recruitment to B cell follicles within lymphoid organs, and changes of lymphoid tissue architecture in HIV/SIV infection have been documented, the underlying immunopathology remains unclear. Here, we summarize what is known regarding the kinetics of TFH cells and GC B cells during the course of infection as ...

Journal: :Human reproduction update 1998
O Salha N Abusheikha V Sharma

The physiological trigger for meiotic resumption in the human oocyte is the surge of luteinizing hormone, but it can also occur spontaneously if oocytes are released from antral follicles and cultured in vitro. The development of novel techniques for the culture of murine oocytes has raised the possibility of growing human oocytes to maturity in vitro. Such a system could open the door to a num...

2016
S. Gebremedhn H. O. Pandey D. Salilew-Wondim M. Hoelker K. Schellander D. Tesfaye

Ovarian functions, which involve dynamically regulated processes of selection, recruitment and dominance, are known to be regulated by an array of genes, which are expressed in spatiotemporal manner in follicular somatic cells and gametes. This differential expression of genes in mammalian follicular cells is partly regulated by posttranscriptional gene regulators named microRNAs (miRNAs). In a...

2000
William S. Hlavacek Nikolaos I. Stilianakis Alan S. Perelson

In patients infected with human immunode¢ciency virus type 1 (HIV-1), a large amount of virus is associated with follicular dendritic cells (FDCs) in lymphoid tissue. To assess the in£uence of FDCs on viral dynamics during antiretroviral therapy, we have developed a mathematical model for treatment of HIV-1 infection that includes FDCs. Here, we use this model to analyse measurements of HIV-1 d...

Journal: :veterinary research forum 2012
esmail ayen shapour hasanzadeh saleh tabatabaei

the aim of this study was to evaluate the defense cells changes of cervical mucous during follicular and luteal phases of estrus cycle in river buffalo. reproductive organs of the adult and apparently healthy female buffaloes were collected from the slaughterhouse. by visual investigation of both the ovaries for presence of corpus luteum and growing follicles, the luteal and follicular phase of...

Journal: :Journal of BP Koirala Institute of Health Sciences 2022

Adenomatoid odontogenic tumor (AOT) is an uncommon, slow-growing, noninvasive mostly in the anterior maxilla with three well-recognized clinico-pathological variants: follicular, extra-follicular, and peripheral. Extra-follicular variant presents as a well-defined, unilocular, radiolucency between, above, or superimposed on roots of erupted tooth. A 19 years female reported chief complaint loos...

Esmail Ayen Saleh Tabatabaei, Shapour Hasanzadeh

The aim of this study was to evaluate the defense cells changes of cervical mucous during follicular and luteal phases of estrus cycle in river buffalo. Reproductive organs of the adult and apparently healthy female buffaloes were collected from the slaughterhouse. By visual investigation of both the ovaries for presence of corpus luteum and growing follicles, the luteal and follicular phase of...

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