Results 31 to 40 of about 2,750 (119)

Molecular Mechanisms Regulating Hair Follicle Development [PDF]

open access: yesJournal of Investigative Dermatology, 2002
Clinical conditions causing hair loss, such as androgenetic alopecia, alopecia areata, and scarring alopecia, can be psychologically devastating to individuals and are the target of a multimillion dollar pharmaceutical industry. The importance of the hair follicle in skin biology, however, does not rest solely with its ability to produce hair.
openaire   +2 more sources

Large electrical currents traverse developing Ceropia follicles [PDF]

open access: yesProceedings of the National Academy of Sciences, 1979
An intense (up to 20 μA/cm 2 ) steady electrical current enters the anterior or nurse cell end of the growing follicle (or oocyte—nurse cell complex) of the Cecropia moth and is balanced by a more diffuse current leaving elsewhere. In late growth stages, the total transfollicular current is about 100 nA. Moreover, a
L F, Jaffe, R I, Woodruff
openaire   +2 more sources

Ovarian follicle development and transgenic mouse models [PDF]

open access: yesHuman Reproduction Update, 2006
Ovarian follicle development is a complex process that begins with the establishment of what is thought to be a finite pool of primordial follicles and culminates in either the atretic degradation of the follicle or the release of a mature oocyte for fertilization.
K R, Barnett   +4 more
openaire   +2 more sources

Effects of IGF-1 on the Three-Dimensional Culture of Ovarian Preantral Follicles and Superovulation Rates in Mice

open access: yesBiology, 2022
Insulin-like growth factor-1 (IGF-1) plays a crucial role during folliculogenesis, which has been demonstrated by previous research. However, the optimal IGF-1 dosage in the three-dimensional (3D) culture system is unknown. Mouse secondary follicles (140–
Shizhen Dai   +4 more
doaj   +1 more source

Oocyte quality following in vitro follicle development

open access: yesBiology of Reproduction, 2021
Abstract In vitro follicle development (IVFD) is an adequate model to obtain basic knowledge of folliculogenesis and provides a tool for ovarian toxicity screening. IVFD yielding competent oocytes may also offer an option for fertility and species preservation.
Jing, Xu, Mary B, Zelinski
openaire   +2 more sources

Effects of physiological oxygen tension on human cumulus-oocyte-complex metabolism during in vitro maturation: an exploratory study

open access: yesJournal of Ovarian Research
In vitro oocyte maturation (IVM) is an internationally recognized, patient-friendly assisted reproductive technology, particularly valuable for women with polycystic ovary syndrome (PCOS).
Ellen Anckaert   +9 more
doaj   +1 more source

Zinc dynamics regulate early ovarian follicle development

open access: yesJournal of Biological Chemistry, 2023
Zinc fluctuations regulate key steps in late oocyte and preimplantation embryo development; however, roles for zinc in preceding stages in early ovarian follicle development, when cooperative interactions exist between the oocyte and somatic cells, are unknown.
Yu-Ying Chen   +5 more
openaire   +2 more sources

Genetic Basis of Follicle Development in Dazu Black Goat by Whole-Transcriptome Sequencing

open access: yesAnimals, 2021
The follicle development (FD) is an important factor determining litter size in animals. Recent studies have found that noncoding RNAs (ncRNAs) play an important role in FD. In particular, the role of the regulatory mechanism of competing endogenous RNAs
Lu Xu   +16 more
doaj   +1 more source

Involvement of miRNAs in equine follicle development [PDF]

open access: yesREPRODUCTION, 2013
Previous evidence fromin vitrostudies suggests specific roles for a subset of miRNAs, including miR-21, miR-23a, miR-145, miR-503, miR-224, miR-383, miR-378, miR-132, and miR-212, in regulating ovarian follicle development. The objective of this study was to determine changes in the levels of these miRNAs in relation to follicle selection, maturation ...
S N, Schauer   +4 more
openaire   +2 more sources

Transcripts Encoding the Androgen Receptor and IGF-Related Molecules Are Differently Expressed in Human Granulosa Cells From Primordial and Primary Follicles

open access: yesFrontiers in Cell and Developmental Biology, 2018
Bidirectional cross talk between granulosa cells and oocytes is known to be important in all stages of mammalian follicular development. Insulin-like growth factor (IGF) signaling is a prominent candidate to be involved in the activation of primordial ...
Line L. Steffensen   +7 more
doaj   +1 more source

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