Results 1 to 10 of about 267,539 (298)
We wish to congratulate Boitrelle and colleagues for their comprehensive critical review on the Sixth Edition of the WHO Laboratory Manual for Human semen examination [...]
Francesco Pallotti +2 more
doaj +1 more source
Cryopreservation of single-sperm: where are we today?
Background Patients with severe oligospermia and nonobstructive azoospermia have very limited numbers of viable sperm in their epididymal and testicular samples. Thus, cryopreservation of their sperm is performed to avoid repeated sperm retrievals and to
Shasha Liu, Fuping Li
doaj +1 more source
Thermotaxis--movement directed by a temperature gradient--is a prevalent process, found from bacteria to human cells. In the case of mammalian sperm, thermotaxis appears to be an essential mechanism guiding spermatozoa, released from the cooler reservoir site, towards the warmer fertilization site.
Anat, Bahat, Michael, Eisenbach
openaire +2 more sources
(Uploaded by Plazi for the Bat Literature Project) No abstract provided.
Orr, Teri J., Zuk, Marlene
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Therapeutic Effects of Prolonged Release Melatonin (Circadin) in Patients with Overactive Bladder and Chronic Insomnia in More Than 55 Years Old [PDF]
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
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Molecular Analysis of DPY19L2, PICK1 and SPATA16 in Italian Unrelated Globozoospermic Men
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
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
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
Gamete evolution and sperm numbers: sperm competition versus sperm limitation [PDF]
Both gamete competition and gamete limitation can generate anisogamy from ancestral isogamy, and both sperm competition (SC) and sperm limitation (SL) can increase sperm numbers. Here, we compare the marginal benefits due to these two components at any given population level of sperm production using the risk and intensity models in sperm economics. We
Geoff A, Parker, Jussi, Lehtonen
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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

