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Samuel Gebremedhn
Researcher at Colorado State University
Publications - 33
Citations - 820
Samuel Gebremedhn is an academic researcher from Colorado State University. The author has contributed to research in topics: Follicular fluid & Follicular phase. The author has an hindex of 13, co-authored 29 publications receiving 568 citations. Previous affiliations of Samuel Gebremedhn include University of Bonn & Mekelle University.
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Journal ArticleDOI
MicroRNA Expression Profile in Bovine Granulosa Cells of Preovulatory Dominant and Subordinate Follicles during the Late Follicular Phase of the Estrous Cycle.
Samuel Gebremedhn,Dessie Salilew-Wondim,I. Ahmad,Sudeep Sahadevan,M. M. Hossain,Michael Hoelker,Franca Rings,Christiane Neuhoff,Ernst Tholen,Christian Looft,Karl Schellander,Dawit Tesfaye +11 more
TL;DR: The presence of distinct sets of miRNAs in granulosa cells of preovulatory dominant and subordinate follicles supports the potential role of mi RNAs in post-transcriptional regulation of genes involved in bovine follicular development during the late follicular phase of the estrous cycle.
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The Expression Pattern of microRNAs in Granulosa Cells of Subordinate and Dominant Follicles during the Early Luteal Phase of the Bovine Estrous Cycle
Dessie Salilew-Wondim,I. Ahmad,Samuel Gebremedhn,Sudeep Sahadevan,M. M. Hossain,Franca Rings,Michael Hoelker,Ernst Tholen,Christiane Neuhoff,Christian Looft,Karl Schellander,Dawit Tesfaye +11 more
TL;DR: Target gene prediction and pathway analysis revealed that major signaling associated with follicular development including Wnt signaling, TGF-beta signaling, oocyte meiosis and GnRH signaling were affected by differentially expressed miRNAs.
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Oxidative and endoplasmic reticulum stress defense mechanisms of bovine granulosa cells exposed to heat stress.
Teshome Wondie Alemu,H. O. Pandey,Dessie Salilew Wondim,Samuel Gebremedhn,Christiane Neuhof,Ernst Tholen,Michael Hölker,Karl Schellander,Dawit Tesfaye +8 more
TL;DR: Investigation of the effect of heat stress on granulosa cells function and the associated defense mechanism found that reactive oxygen species level was higher in cells under 41 °C at 24 h compared to control, and NRF2 mediated oxidative stress and endoplasmic reticulum stress response by bovine granULosa cells were higher.
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Clinical and subclinical endometritis induced alterations in bovine endometrial transcriptome and miRNome profile
Dessie Salilew-Wondim,Sally Ibrahim,Samuel Gebremedhn,Dawit Tesfaye,M. Heppelmann,Heinrich Bollwein,Christiane Pfarrer,Ernst Tholen,Christiane Neuhoff,Karl Schellander,Michael Hoelker +10 more
TL;DR: The results of this study unraveled endometrial transcriptome and miRNome profile alterations in cows affected by subclinical or clinical endometritis which may have a significant effect on the uterine homeostasis and uterine receptivity.
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The role of the PI3K-Akt signaling pathway in the developmental competence of bovine oocytes
Gabriella Mamede Andrade,Juliano Coelho da Silveira,C. Perrini,Maite del Collado,Samuel Gebremedhn,Dawit Tesfaye,Flávio Vieira Meirelles,Felipe Perecin +7 more
TL;DR: The measurement of levels of PI3K-Akt pathway components in FCs from ovarian follicles carrying oocytes with distinct developmental competences is a useful tool to identify putative molecular pathways involved in the acquisition of oocyte competence.