نتایج جستجو برای: ssc niche

تعداد نتایج: 26865  

Journal: :Development 2009
Jon M Oatley Melissa J Oatley Mary R Avarbock John W Tobias Ralph L Brinster

Self-renewal and differentiation of spermatogonial stem cells (SSCs) provide the foundation for testis homeostasis, yet mechanisms that control their functions in mammals are poorly defined. We used microarray transcript profiling to identify specific genes whose expressions are augmented in the SSC-enriched Thy1(+) germ cell fraction of mouse pup testes. Comparisons of gene expression in the T...

Journal: :Early human development 2015
Xiaomei Cong Susan M Ludington-Hoe Naveed Hussain Regina M Cusson Stephen Walsh Victoria Vazquez Carrie-Ellen Briere Dorothy Vittner

OBJECTIVE Maternal skin-to-skin contact (M-SSC) has been found to reduce adverse consequences of prematurity, however, its neurobiological mechanisms have been unknown. The purpose of the study was to examine oxytocin mechanism in modulating parental stress and anxiety during M-SSC and P-SSC (paternal SSC) with their pre-term infants. METHODS Twenty-eight stable pre-term infants and their par...

ژورنال: علوم آب و خاک 2018

Spectral Reflectance of suspended sediment concentration (SSC) remotely sensed by satellite images is an alternative and economically efficient method to measure SSC in inland waters such as rivers and lakes, coastal waters, and oceans. This paper retrieved SSC from satellite remote sensing imagery using radial basis function networks (RBF). In-situ measurement of SSC, water flow data, as well ...

Journal: :Clinical and experimental rheumatology 2008
Y Morita Y Muro K Sugiura Y Tomita

OBJECTIVES To determine if anti-cyclic citrullinated peptide (anti-CCP) antibody titers can distinguish the overlap syndrome of systemic sclerosis and rheumatoid arthritis (SSc-RA) in patients with systemic sclerosis (SSc) and to investigate the clinical significance of anti-CCP antibodies in SSc. METHODS Serum levels of anti-CCP antibodies were measured by enzyme-linked immunosorbent assay i...

2014
Jiucun Wang Lin Yi Xinjian Guo Dongyi He Hongyi Li Gang Guo Yi Wang Hejian Zou Yuanhui Gu Wenzhen Tu Wenyu Wu Li Yang Rong Xiao Syeling Lai Shervin Assassi Maureen D Mayes Xiaodong Zhou

Systemic sclerosis (SSc) is a complex disease involving multiple genetic factors. A recent genome-wide association study (GWAS) indicated that CD247 was strongly associated with SSc, which was subsequently confirmed in a SSc cohort of European population. However, genetic heterogeneity in different ethnic populations may significantly impact the complex trait of SSc. The studies herein aimed to...

Journal: :Nature 1990

2018
Tessa Lord Melissa J. Oatley Jon M. Oatley

Spermatogenesis requires retinoic acid (RA) induction of the undifferentiated to differentiating transition in transit amplifying (TA) progenitor spermatogonia, whereas continuity of the spermatogenic lineage relies on the RA response being suppressed in spermatogonial stem cells (SSCs). Here, we discovered that, in mouse testes, both spermatogonial populations possess intrinsic RA-response mac...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Hinako M Takase Roeland Nusse

Spermatogonial stem cells (SSCs) fuel the production of male germ cells but the mechanisms behind SSC self-renewal, proliferation, and differentiation are still poorly understood. Using the Wnt target gene Axin2 and genetic lineage-tracing experiments, we found that undifferentiated spermatogonia, comprising SSCs and transit amplifying progenitor cells, respond to Wnt/β-catenin signals. Genetic...

2011
Kazuhito Sugimori Ryuichi Gejo Hayato Mine Tomoatsu Kimura

INTRODUCTION: Subscapularis (SSC) tendon tear is detected in about 20-40% of the patients with rotator cuff tear during surgery. Magnetic resonance imaging (MRI) scans have been used as a diagnostic tool for predicting the presence of SSC tear. But it is difficult to diagnose the SSC tear correctly. The purpose of this study is to evaluate the significance of various preoperative MRI findings t...

Journal: :CoRR 2016
Michael Tschannen Helmut Bölcskei

Sparsity-based subspace clustering algorithms have attracted significant attention thanks to their excellent performance in practical applications. A prominent example is the sparse subspace clustering (SSC) algorithm by Elhamifar and Vidal, which performs spectral clustering based on an adjacency matrix obtained by sparsely representing each data point in terms of all the other data points via...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید