Results 61 to 70 of about 31,300 (231)

Cryopreservation of Rooster Sperm

open access: yesPoultry Science, 1993
Successful cryopreservation of sperm requires: 1) selection of proper diluent; 2) selection of the best cryoprotectant; 3) determination of freezing and thawing rates for optimum retention of fertilization potential; and 4) removal of any materials deleterious to fertility (e.g., glycerol) before insemination.
openaire   +2 more sources

Morphological and morphometric characteristics of fresh and cryopreserved spermatozoa of saanen bucks

open access: yesAgricultural Science and Practice, 2023
Background. Cryopreservation of spermatozoa with the best morphofunctional characteristics may allow their use for assisted reproductive technologies in goat breeding throughout the year to effectively increase livestock. Aim.
A. Bogdaniuk, M. Petrushko
doaj   +1 more source

Freeze/thaw stress induces organelle remodeling and membrane recycling in cryopreserved human mature oocytes [PDF]

open access: yes, 2016
Purpose: Our aim was to evaluate the ultrastructure of human metaphase II oocytes subjected to slow freezing and fixed after thawing at different intervals during post-thaw rehydration.
Albani, E.   +8 more
core   +1 more source

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

open access: yesAndrology, 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   +10 more
wiley   +1 more source

Cryopreservation of epididymal sperm

open access: yesMolecular and Cellular Endocrinology, 2000
The advent of ICSI and the perfecting of freezing protocols for sperm samples that in the pre-ICSI era would not have been frozen, allows now routine cryopreservation of epididymal sperm regardless of their quality and quantity. There are two methods to retrieve epididymal sperm: microsurgical epididymal sperm aspiration (MESA) and percutaneous ...
openaire   +2 more sources

Computerized Sperm Motility and Application of Sperm Cryopreservation [PDF]

open access: yesArchives of Andrology, 1988
An objective method for measuring sperm motion characteristics was developed on an Intellect 100 Quantel Image Analysis System suitable for various image cytometric applications. It provided overall analysis of percent motility (% MS) as well as individual and mean measurements of motion characteristics, including vigor characteristics such as ...
J, Auger, J P, Dadoune
openaire   +2 more sources

The review of recent advances in fish genetics and biotechnology [PDF]

open access: yes, 2012
Great advances have been, and are being made in our knowledge of the genetics and molecular biology (including genomics, proteomics and structural biology).
Mgbabu , Christopher Nwokwa
core  

Fatherhood and sperm DNA damage in testicular cancer patients [PDF]

open access: yes, 2018
Testicular cancer (TC) is one of the most treatable of all malignancies and the management of the quality of life of these patients is increasingly important, especially with regard to their sexuality and fertility.
Lenzi, Andrea   +3 more
core   +1 more source

Cryopreservation of Spermatozoa Prior and Post‐Orchiectomy in Patients With Testicular Germ Cell Cancer—Does the Timing Matter?

open access: yesAndrology, EarlyView.
ABSTRACT Background Testicular germ cell cancer (TGCC) is the most frequent malignancy in young men of reproductive age. According to guidelines, semen cryopreservation should be performed prior to orchiectomy. Lack of time and local facilities as well as mental pressure are challenges in terms of fertility preservation before surgery.
Yuhe Tang   +4 more
wiley   +1 more source

Semen Cryopreservation in Testicular Cancer: Before or After Orchidectomy?

open access: yesAndrology, EarlyView.
ABSTRACT Background Fertility preservation in patients with testicular cancer remains a clinical priority, yet the optimal timing for sperm cryopreservation—before or after orchidectomy—remains a matter of debate. Objectives The aim of this study was to determine the optimal timing for semen cryopreservation and the best‐quality sample for ART.
Alessandra Buonacquisto   +12 more
wiley   +1 more source

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