Results 31 to 40 of about 316,099 (294)

Therapeutic Effects of Prolonged Release Melatonin (Circadin) in Patients with Overactive Bladder and Chronic Insomnia in More Than 55 Years Old [PDF]

open access: yesKosin Medical Journal, 2020
Objectives Bladder storage symptoms including nocturia is the most common cause of sleep disturbance in all age groups. Sleep disturbance is also a main cause of nocturia so that sleep recovery can clinically improve nocturia.
Min Jung Park   +5 more
doaj   +1 more source

Molecular Analysis of DPY19L2, PICK1 and SPATA16 in Italian Unrelated Globozoospermic Men

open access: yesLife, 2021
This study aims to evaluate genetic contribution and sperm DNA fragmentation (SDF) in a cohort of 18 unrelated globozoospermic Italian men (Group G). Semen samples were assessed according to the WHO 2010 Laboratory Manual and compared with 31 fertile ...
Fabiana Faja   +7 more
doaj   +1 more source

Effects of virtual reality erotica on ejaculate quality of sperm donors: a balanced and randomized controlled cross-over within-subjects trial

open access: yesReproductive Biology and Endocrinology, 2022
Background Previous research has shown that the type and duration of erotic material that men have access to during masturbation can influence semen parameters.
Daniel Rosenkjær   +3 more
doaj   +1 more source

Epigenetic Effects of Gender-Affirming Hormone Treatment: A Pilot Study of the ESR2 Promoter’s Methylation in AFAB People

open access: yesBiomedicines, 2022
Virilization of gender-incongruent subjects to whom were assigned the female gender at birth (AFAB) is achieved through testosterone administration. Inter-individual differences in the timing and acquisition of phenotypic characteristics, even if the ...
Francesco Pallotti   +12 more
doaj   +1 more source

Hydrodynamic propulsion of human sperm [PDF]

open access: yes, 2009
The detailed fluid mechanics of sperm propulsion are fundamental to our understanding of reproduction. In this paper, we aim to model a human sperm swimming in a microscope slide chamber.
Green, Richard B.   +7 more
core   +1 more source

Sperm Cholesterol Content Modifies Sperm Function and TRPV1-Mediated Sperm Migration [PDF]

open access: yesInternational Journal of Molecular Sciences, 2021
Transient receptor potential channels-vanilloid receptor 1 (TRPV1) regulates thermotaxis in sperm-oriented motility. We investigated the role of membrane cholesterol (Chol) on TRPV1-mediated human sperm migration. Semen samples were obtained from five normozoospemic healthy volunteers.
De Toni L.   +9 more
openaire   +2 more sources

Distribution of Glycoproteins on Feline Testicular Sperm, Epididymal Sperm and Ejaculated Sperm

open access: yesJournal of Veterinary Medical Science, 2011
Glycoproteins (GPs) are known to be involved in the phenomenon of sperm maturation and capacitation. In the present study, we investigated the attachment of GPs on sperm cell membrane during the process of feline sperm maturation from testicular sperm to ejaculated sperm by using 8 FITC-labeled lectins.
TOYONAGA, Mari   +3 more
openaire   +2 more sources

Post-Meiotic Intra-Testicular Sperm Senescence in a Wild Vertebrate [PDF]

open access: yes, 2012
There is growing interest in sperm senescence, both in its underlying mechanisms and evolutionary consequences, because it can impact the evolution of numerous life history traits. Previous studies have documented various types of sperm senescence, but
Richard H. Wagner   +16 more
core   +2 more sources

Gene sequencing and result analysis of balanced translocation carriers by third-generation gene sequencing technology

open access: yesScientific Reports, 2023
Because the total gene copy number remains constant and all genes are normally expressed, carriers of balanced chromosomal translocations usually have a normal phenotype but are able to produce many different types of gametes during meiosis, and ...
Xiaoqi Zeng   +6 more
doaj   +1 more source

Cryptic male choice: sperm allocation strategies when female quality varies [PDF]

open access: yes, 2002
Reinhold K, Kurtz J, Engqvist L. Cryptic male choice: sperm allocation strategies when female quality varies. Journal of Evolutionary Biology. 2002;15(2):201-209.We examined evolutionary stable sperm allocation and included stochastic variation in male ...
Reinhold, Klaus   +2 more
core   +1 more source

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