Results 21 to 30 of about 189,637 (216)

Differential distribution of eicosanoids and polyunsaturated fatty acids in the Penaeus monodon male reproductive tract and their effects on total sperm counts.

open access: yesPLoS ONE, 2022
Eicosanoids, which are oxygenated derivatives of polyunsaturated fatty acids (PUFAs), serve as signaling molecules that regulate spermatogenesis in mammals. However, their roles in crustacean sperm development remain unknown.
Pisut Yotbuntueng   +10 more
doaj   +1 more source

Congenital unilateral absence of vas deferens with contralateral testicular atrophy

open access: yesUrology Annals, 2020
We present a case report of a 25-year-old obese man complaining of primary infertility for 2 years. After a thorough examination and investigation were done, he had congenital unilateral absence of vas deferens with ipsilateral renal agenesis and a ...
Turki A Alferayan   +4 more
doaj   +1 more source

Regulation of nerve-evoked contractions of the murine vas deferens. [PDF]

open access: yesPurinergic Signal
Stimulation of sympathetic nerves in the vas deferens yields biphasic contractions consisting of a rapid transient component resulting from activation of P2X1 receptors by ATP and a secondary sustained component mediated by activation of α1-adrenoceptors
Wong PY   +4 more
europepmc   +2 more sources

Effect of cyproterone acetate on alpha1-adrenoceptor subtypes in rat vas deferens

open access: yesBrazilian Journal of Medical and Biological Research, 2003
Gonadal hormones regulate the expression of alpha1-adrenoceptor subtypes in several tissues. The present study was carried out to determine whether or not cyproterone acetate, an anti-androgenic agent, regulates the alpha1-adrenoceptor subtypes that ...
M. Campos, P.L. Morais, A.S. Pupo
doaj   +1 more source

A Case of Cryptorchidism with Ipsilateral Congenital Unilateral Absence of the Vas Deferens and Contralateral Renal Agenesis

open access: yesCase Reports in Urology, 2016
Introduction and Aims. Congenital absence of the vas deferens is an uncommon anomaly and this clinical condition is responsible for up to 1-2% of male infertility.
Young Dong Yu, Young Kwon Hong
doaj   +1 more source

Ureteral Obstruction by the Vas Deferens after Urostomy

open access: yesThe Scientific World Journal, 2010
A male patient with spina bifida and paraplegia, born in 1968, underwent urostomy in 1973. In 1999, he developed urine infections. Intravenous urography showed bilateral hydronephrosis and hydroureter.
Subramanian Vaidyanathan   +3 more
doaj   +1 more source

Undernutrition affects cell survival, oxidative stress, Ca2+ handling and signaling pathways in vas deferens, crippling reproductive capacity. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: The aim of this work was to investigate the mechanisms by which chronic malnutrition (CM) affects vas deferens function, leading to compromised reproductive capacity.
Humberto Muzi-Filho   +11 more
doaj   +1 more source

Beyond Nature's Blueprint: Macrocyclic Peptides Containing Unnatural Amino Acids in Therapeutic Development

open access: yesAngewandte Chemie, EarlyView.
Strategic incorporation of unnatural amino acids transforms macrocyclic peptides into drug‐like molecules capable of engaging challenging targets. These building blocks enhance stability, permeability, and bioavailability, accelerating the development of next‐generation peptide therapeutics.
Krishna K. Sharma   +5 more
wiley   +2 more sources

A case report of solitary neurofibroma of the Vas deferens

open access: yesUrology Case Reports, 2020
Solitary neurofibroma of the male genital tract is a rare benign peripheral nerve sheath tumor which is considered to originate from the Schwann cell. Neurofibroma of the male genital tract has been reported extremely rarely in the literature. We present
Abdullah, Jun-ping Xing
doaj   +1 more source

Building families—Implementing balanced sexual and reproductive health

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract One of the main initiatives of the World Health Organization (WHO) is the promotion of Sexual and Reproductive Health (SRH). Sexuality, infertility, and contraception are three interconnected pillars of SRH, each essential for achieving global equity in family planning and family building.
Peter Y. Liu   +9 more
wiley   +2 more sources

Home - About - Disclaimer - Privacy