Results 121 to 130 of about 58,764 (310)

Secondary Pituitary Hyperplasia: The Long-Term Consequences of Untreated Primary Hormonal Deficiencies

open access: yesEndocrinology Research and Practice
Pituitary hyperplasia is an enlargement of the pituitary gland resulting from increased cell number. In contrast to adenomas, which are nodular and monoclonal, hyperplasia is a polyclonal process that may manifest in diffuse, focal, or nodular forms ...
Valentina Gasco   +6 more
doaj   +1 more source

Early stage sex differentiation processes are unaffected in the sox9b mutant gonads.

open access: yes, 2012
(A–L) GSDF (A–D), DMRT1 (E–H) and aromatase (I–L) expression (blue) were detected by in situ hybridization analysis of st. 39 (A–D) and 10 dph (E–L) medaka embryos, respectively. Consistent with the pattern found in wild-type (WT) medaka gonads, GSDF and
Shuhei Nakamura (188543)   +5 more
core   +1 more source

Analysis and Characterization of Kisspeptin and Its Analogues in Serum and Urine Samples by Liquid Chromatography–High‐Resolution Mass Spectrometry for Doping Control Purposes

open access: yesDrug Testing and Analysis, EarlyView.
Sensitive LC‐HRMS methods were established for the detection of kisspeptin and its analogues in serum and urine, alongside their analytical and metabolic characterization. Stability studies were conducted in serum, plasma, and urine, highlighting the importance of appropriate sample handling for reliable anti‐doping analysis.
Sophia Krombholz   +3 more
wiley   +1 more source

Morphological Differences in Male Gonads Among Nine Genera of Gadidae (Pisces)

open access: yes, 1972
Among 12 species of Gadidae, which belong to nine genera and three subfamilies six basic types of male gonads are observed. In the freshwater genus, Lota, gonads are simple nearly cylindrical m shape, and not subdivided into lobes.
V. D. Vladykov
core   +1 more source

The β integrin modulates serotonin sensitivity via NPxY motifs to regulate egg laying and mechanosensation behaviors in Caenorhabditis elegans

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Integrin is an αβ heterodimeric receptor to the extracellular matrix; its binding to the matrix recruits focal adhesions to two NPxY motifs, the tyrosine phosphorylation sites in the cytoplasmic domain. Studies found that replacing tyrosines (Y) with phenylalanines (F) in the motif of β1 integrin displayed little developmental or ...
Josh Haram Bumm   +7 more
wiley   +1 more source

Experiments on the dependence of the nuptial hue on the gonads in fish.

open access: yes, 1927
EXPERIMENTS ON THE DEPENDENCE OF THE NUPTIAL HUE ON THE GONADS IN FISH. Experiments on the dependence of the nuptial hue on the gonads in fish. (vol. III) (-
Kopec, St.
core  

Role of SoxE transcription factors in development and disease

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Sox8, Sox9, and Sox10 arose by multiple rounds of genome duplications from a single SoxE gene in ancestral vertebrates. In this review, we will briefly discuss the molecular structure and function of SoxE transcription factors and their evolutionary origin. We will then discuss their expression, function, and developmental disorders.
Merin Lawrence, Gerhard Schlosser
wiley   +1 more source

Transposable elements acquire time- and sex-specific transcriptional and epigenetic signatures along mouse fetal gonad development

open access: yesFrontiers in Cell and Developmental Biology
Gonadal sex determination in mice is a complex and dynamic process, which is crucial for the development of functional reproductive organs. The expression of genes involved in this process is regulated by a variety of genetic and epigenetic mechanisms ...
Isabelle Stévant   +3 more
doaj   +1 more source

The morphology of fetal gonads of spontaneous mouse hermaphrodites.

open access: yes, 1979
The gonads of 107 spontaneous, chromosomal mosaic, day-15 fetal hermaphrodites derived from BALB/cWt strain male mice are described and photographs of seven gonads representative of the major types are presented.
Whitten, W K, Beamer, W G, Byskov, A G
core  

Expression of serpinb6 serpins in germ and somatic cells of mouse gonads

open access: yes, 2006
The serpin superfamily of serine protease inhibitors is implicated in the regulation of numerous physiological processes. In mice, Spi3/Serpinb6 has a broad tissue distribution.
Vassalli, Jean-Dominique   +6 more
core   +1 more source

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