Results 141 to 150 of about 204,791 (276)

Ability of human chorionic gonadotropin beta-subunit to inhibit the steroidogenic response to lutropin

open access: yes, 1979
Ability of the beta-subunit of human chorionic gonadotropin to inhibit the response to lutropin (luteinizing hormone, LH) was tested in the immature rat ovarian system and pregnant-mare-serum-gonadotropin-primed rat ovarian system with progesterone ...
Dighe, RR, Moudgal, NR, Muralidhar, K
core  

Organized and Calcified Testicular Hematoma Mimicking a Neoplasm: A Case Report

open access: yesIJU Case Reports, Volume 9, Issue 6, November 2026.
ABSTRACT Background Calcified intratesticular masses may mimic malignancy. Organized testicular hematomas are rare and may develop fibrosis and dystrophic calcification. Differential diagnoses include regressed (“burned‐out”) germ cell tumors, cavernous hemangiomas, and paratesticular fibrous pseudotumors (PFP).
Ahmed Nasir Hanifi   +8 more
wiley   +1 more source

Integrated Reproductive and Cytogenetic Assessment of Infertility in a Captive Jaguar (Panthera onca)

open access: yesVeterinary Medicine and Science, Volume 12, Issue 6, November 2026.
Integrated reproductive and cytogenetic assessment of infertility in a captive jaguar pair identified normal chromosomal status in both individuals, whereas impaired semen quality in the male likely represents a major limiting factor for reproductive success under the observed conditions.
Marie Altmanová   +3 more
wiley   +1 more source

Testicular histopathology and its association with germ cell numbers, serum concentrations of reproductive hormones, and semen quality

open access: yesAndrology, Volume 14, Issue 8, Page 2388-2400, November 2026.
Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas   +6 more
wiley   +1 more source

Identification of MEF2A, MEF2C, and MEF2D interactomes in basal and Fsk‐stimulated mouse MA‐10 Leydig cells

open access: yesAndrology, Volume 14, Issue 8, Page 2401-2418, November 2026.
Abstract Background Myocyte enhancer factor 2 transcription factors regulate essential transcriptional programs in various cell types. The activity of myocyte enhancer factor 2 factors is modulated through interactions with cofactors, chromatin remodelers, and other regulatory proteins, which are dependent on cell context and physiological state.
Karine de Mattos   +4 more
wiley   +1 more source

Chemotherapy resistance and risk stratification in gestational trophoblastic neoplasia: A systematic review and network meta‐analysis

open access: yesActa Obstetricia et Gynecologica Scandinavica, Volume 105, Issue 11, Page 2158-2172, November 2026.
Higher pretreatment β‐hCG, greater tumor burden, higher FIGO stage/score, and choriocarcinoma were associated with higher chemoresistance risk in gestational trophoblastic neoplasia. In exploratory network analyses, etoposide‐containing regimens showed lower predicted chemoresistance.
Ying‐Ying Xue   +7 more
wiley   +1 more source

Impact of Reactive Temperament on Bull Fertility in Natural Service

open access: yesReproduction in Domestic Animals, Volume 61, Issue 11, November 2026.
ABSTRACT The study aimed to evaluate the influence of temperament on semen quality and fertility in Nelore bulls. Two groups were selected based on ethological analysis, consisting of animals with either calm temperament (CA, n = 8) or reactive temperament (RE, n = 8).
Larissa de Almeida Martin   +6 more
wiley   +1 more source

Serum Response Factor Cooperates With Progesterone Receptor to Regulate Oviductal Smooth Muscle Gene Expression During Preimplantation Embryo Transport

open access: yesThe FASEB Journal, Volume 40, Issue 20, 31 October 2026.
Oviductal smooth muscle contractions are important for preimplantation embryo transport under the regulation of steroid hormone signaling. Deletion of serum response factor (Srf) in progesterone receptor (Pgr)‐expressing cells leads to differential expression of 1670 genes in the mouse oviduct, 306 of which are directly bound by SRF.
Peter F. Lais   +4 more
wiley   +1 more source

Estrogen Receptor Beta Isoforms Interplay Integrates Nuclear and Extra‐Nuclear Signaling to Modulate Human Granulosa Cell Growth

open access: yesThe FASEB Journal, Volume 40, Issue 19, 15 October 2026.
Working model of ERβ isoform signaling in human granulosa cells. Upon E2 binding, ERβ1 activates ERE‐dependent transcription and represses AP‐1 activity through Jun/Fos interactions. In contrast, ERβ2, ERβ4, and ERβ5 lack E2 binding and ERE activity but promote AP‐1‐dependent transcription and counteract ERβ1 repression, including after phosphorylation
Clémentine Marie   +8 more
wiley   +1 more source

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