Results 111 to 120 of about 59,858 (305)

Unique Sertoli cell adaptations support enhanced spermatogenesis in chickens

Journal of Animal Science and Biotechnology
Background The cellular basis of testicular development and spermatogenesis for the extreme sperm density in chickens (100-fold higher than mammals) remains poorly defined.
Gaoqing Xu, Zhuoxuan Gu, Ziming Wang, Jing Zhao, He Ding, Hongyu Liu, Yi Fang, Xin Ma, Jing Guo, Wenfa Lyu, Jun Wang   +10 more
doaj   +1 more source

Effect of FSH and insulin on lipogenesis in cultures of Sertoli cells from immature rats

Brazilian Journal of Medical and Biological Research, 1997
Follicle-stimulating hormone (FSH) and insulin regulate glycide metabolism in Sertoli cells, thus stimulating lactate production. These stimulatory effects of FSH and insulin do not require protein synthesis, suggesting a modulation of enzyme activity ...
F.C.R. Guma, M Wagner, L.H. Martini, E.A. Bernard   +3 more
doaj   +1 more source

Testicular Lmcd1 regulates phagocytosis by Sertoli cells through modulation of NFAT1/Txlna signaling pathway [PDF]

, 2020
Xiaohang Jin, Sheng Zhang, Tianbing Ding, Pengtao Zhao, Chunli Zhang, Yuxing Zhang, Wei Li   +6 more
openalex   +1 more source

Expression of the DNA mismatch repair proteins hMLH1 and hPMS2 in normal human tissues. [PDF]

, 1997
hMLH1 and hPMS2 are part of the DNA mismatch repair complex. Mutations in these genes have been linked to hereditary non-polyposis colon cancer; they also occur in a variety of sporadic cancers. Western blot analysis and immunohistochemistry demonstrated
Aebi, S, Christen, RD, Fink, D, Howell, SB, Kim, HK, Nebel, S, Zheng, H   +6 more
core   +1 more source

Development of a nomogram for sperm retrieval at microTESE for idiopathic non‐obstructive azoospermia in a multi‐center cohort study

Andrology, EarlyView.
Abstract Background Non‐obstructive azoospermia (NOA) affects approximately 10% of infertile men and represents a major challenge in assisted reproductive technology (ART). A model that includes histological variants could be helpful in predicting sperm retrieval rate (SRR) after microdissection testicular sperm extraction (mTESE) in patients affected ...
Giorgio Ivan Russo, Edoardo Pozzi, Fausto Negri, Marco Falcone, Emanuele Zupo, Mirko Preto, Maria Giovanna Asmundo, Sandrine Chamayou, Murat Dursun, Ateş Kadıoğlu, Andrea Salonia   +10 more
wiley   +1 more source

Plasma and testicular testosterone levels, volume density and number of Leydig cells and spermatogenic efficiency of rabbits [PDF]

, 2002
Plasma and tissue testosterone concentrations were determined by radioimmunoassay in 12 eight-month-old sexually mature New Zealand White rabbits and evaluated for possible associations with spermatogenic efficiency as well as with volume density and ...
Berndtson, William E., Cardoso, F. M., Castro, A.C.S.   +2 more
core   +2 more sources

The Oxytocin Receptor in Spermatozoa May Originate From Both Spermatogenesis and Epididymal Maturation, and Regulates Capacitation

Andrology, EarlyView.
Abstract Background The oxytocin receptor (OR) is a G‐protein‐coupled receptor recently identified in human spermatozoa, whose origin and role in sperm physiology remain unknown. Objectives In this study, using the pig as a model, we examine the presence of the OR in ejaculated spermatozoa through immunofluorescence and immunoblotting, and investigate ...
Jesús Martínez‐Hernández, Ferran Garriga, Adeel Ahmad, Lorena Padilla, Carolina Maside, Sergi Bonet, Isabel Barranco, Jordi Roca, Luis Miguel Pastor, Marc Yeste   +9 more
wiley   +1 more source

Peripheral and central mechanisms involved in hormonal control of male and female reproduction [PDF]

, 2016
Reproduction involves the integration of hormonal signals acting across multiple systems togenerate a synchronized physiological output. A critical component of reproduction is the luteinizinghormone (LH) surge, which is mediated by estradiol (E2) and ...
Bentley, G. E., Calandra, Ricardo Saul, Micevych, P. E., Paredes, A. H., Rudolph, L. M., Tesone, Marta, Wu, T. J.   +6 more
core   +1 more source

INSL3 Expression in Leydig Cells is a Biomarker for Immunocastration in Boars: Transcriptional Evidence

Andrology, EarlyView.
ABSTRACT Background Study aimed to obtain insights into physiological responses to immunocastration in pubertal boars by evaluating effects of alternative vaccination protocols and identifying a reliable immunocastration biomarker. Objectives It was hypothesized that the timing of gonadotropin‐releasing hormone (GnRH) suppression by immunocastration ...
Nina Batorek Lukač, Martin Škrlep, Klavdija Poklukar, Petra Ferjan, Volker Stefanski, Gregor Fazarinc, Milka Vrecl   +6 more
wiley   +1 more source

Sperm Telomere Interactions Are Impaired in Testicular Cancer Before and After Adjuvant Therapy

Andrology, EarlyView.
ABSTRACT Background No study has yet explored telomere length or interaction in sperm nuclei of testicular cancer (TC) patients exposed to chemotherapy or radiotherapy. However, sperm telomere dynamics have emerged as a potential marker in male infertility.
Benoit Berby, Sylvianne Hennebicq, Jacqueline Saias, Florence Brugnon, Isabelle Berthaut, Myriam Daudin, Louis Bujan, Ludovic Dumont, Christine Rondanino, Aurélie Feraille, Nathalie Rives   +10 more
wiley   +1 more source