Results 91 to 100 of about 83,159 (258)

The association between male infertility and sperm disomy: Evidence for variation in disomy levels among individuals and a correlation between particular semen parameters and disomy of specific chromosome pairs

open access: yes, 2004
BACKGROUND: The association between infertility and sperm disomy is well documented. Results vary but most report that men with severely compromised semen parameters have a significantly elevated proportion of disomic sperm.
Xiao P Zhai   +27 more
core   +1 more source

Comparison of the Application Value of 4‐Dimensional Hysterosalpingo‐Contrast Sonography and X‐Ray Hysterosalpingography in Intrauterine Insemination

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Objectives To compare the application value of 4‐dimensional hysterosalpingo‐contrast sonography (4D‐HyCoSy) and x‐ray hysterosalpingography (HSG) in intrauterine insemination (IUI) patients. Methods In this retrospective study, a total of 725 infertile patients who underwent IUI in Ganzhou Maternal and Child Health Hospital from January 2023 to June ...
Yongyu Xie   +3 more
wiley   +1 more source

The Effects of Different Cryoprotectants on Stallion Epididymal Spermatozoa

open access: yes, 2011
Any event that makes semen collection or mating impossible, such as death, castration, or injury, may terminate a stallion’s breeding career. Fortunately, stallion sperm which are capable of fertilization can be harvested from a region adjacent to the ...
Beattie, Cleo
core  

Differentially expressed (> 3-fold) proteins of spermatozoa between fresh spermatozoa and spermatozoa after CPA addition.

open access: yes, 2016
Differentially expressed (> 3-fold) proteins of spermatozoa between fresh spermatozoa and spermatozoa after CPA addition.
Md Saidur Rahman (468875)   +4 more
core   +1 more source

Short spermatozoa–oocyte co-incubation improves outcomes of IVF in sheep [PDF]

open access: yes, 2020
The assisted reproductive technique IVF is routinely applied in humans and large animals, both to boost reproductive performance and also for basic research.
Anzalone DEBORA AGATA   +4 more
core  

Multiple Roles of Protamine Kinase SRPK1 and Phosphatase PP1γ in Sperm Development

open access: yesPROTEOMICS, EarlyView.
ABSTRACT Protein phosphorylation regulates key events of male germ cell differentiation. In the testis, SRPK1 and PP1γ are involved in protamine phosphorylation and dephosphorylation, respectively, and their deregulation is linked to defective chromatin structure and male infertility.
Alberto de la Iglesia   +7 more
wiley   +1 more source

Liquid Crystal Polymers as Intrinsically Magnetic and Programmable Soft Materials for Microrobotics

open access: yesSmall, EarlyView.
Liquid crystal polymers (LCPs) are proposed as intrinsically magnetic, programmable, soft materials for microrobotics. Magnetic torque‐driven manipulation of LCP microobjects is achieved and characterized in terms of the step‐out frequency, reaching ∼0.6 Hz in a ∼250 mT magnetic field. The orientation of LCP microobjects in the magnetic field and their
Alexandra Gruzdenko   +5 more
wiley   +1 more source

UCP2 Mitigates the Loss of Human Spermatozoa Motility by Promoting mROS Elimination

open access: yesCellular Physiology and Biochemistry, 2018
Background/Aims: To demonstrate the function of uncoupling protein 2 (UCP2) in the regulation of human spermatozoa motility. Methods: Semen samples were collected from donors with either normal spermatozoa motility (normospermia [NS]) or poor spermatozoa
Xiaona Wang   +11 more
doaj   +1 more source

Precise 3D Tracking of Highly Non‐Planar Eukaryotic Flagellar Beating Patterns Using Digital Holographic Microscopy

open access: yesSmall Methods, EarlyView.
The 3D beating dynamics of eukaryotic flagella drive motility, sensory functions, and resource acquisition, yet highly non‐planar beating patterns remain poorly characterized. Based on Digital Holographic Microscopy, holoV3C enables label‐free 3D reconstruction of such complex dynamics with 53 nm axial resolution, demonstrated on mouse sperm and ...
Patryk Nienaltowski   +7 more
wiley   +1 more source

Reduced glutathione and cysteine hydrochloride on crossbred bull semen

open access: yes, 2012
Over the last few years, good quality freezable semen was not utilized effectively due to less knowledge about the freezability of semen. One reason is the lack of sufficient antioxidants in the seminal plasma and semen extender.
P Perumal
core   +1 more source

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