Search Results - "Leibo, S. P"

The principal variables of cryopreservation: solutions, temperatures, and rate changes by Leibo, S.P., Ph.D, Pool, Thomas B., Ph.D

“…Objective To describe several fundamental variables that influence ultimate survival of oocytes and embryos when they are cryopreserved. Design The literature…”
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Cryopreservation of the Germplasm of Animals Used in Biological and Medical Research: Importance, Impact, Status, and Future Directions by Mazur, Peter, Leibo, S. P, Seidel, George E

“…Molecular genetics and developmental biology have created thousands of new strains of laboratory animals, including rodents, Drosophila, and zebrafish. This…”
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Development into blastocysts of bovine oocytes cryopreserved by ultra-rapid cooling by Martino, A. (Autonomous University of Barcelona, Bellaterra, Spain.), Songsasen, N, Leibo, S.P

“…The objective of the research described was to devise an efficient procedure to cryopreserve in vitro-matured bovine oocytes, using in vitro fertilization…”
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Production of channel catfish with sperm cryopreserved by rapid non-equilibrium cooling by Cuevas-Uribe, Rafael, Leibo, S.P., Daly, Jonathan, Tiersch, Terrence R.

“…► Demonstrates vitrification for fish sperm. ► Provides a new approach to expand genetic resources. ► Enables protection of stocks for aquaculture. ► Allows…”
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Cryopreservation of gametes and embryos of non-domestic species by Leibo, S.P., Songsasen, N.

“…Many species of mammals are threatened or endangered. Methods of assisted reproduction that are being used with increasing frequency to produce offspring of…”
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Different patterns of metabolic cryo-damage in domestic cat (Felis catus) and cheetah (Acinonyx jubatus) spermatozoa by Terrell, Kimberly A., Wildt, David E., Anthony, Nicola M., Bavister, Barry D., Leibo, S.P., Penfold, Linda M., Marker, Laurie L., Crosier, Adrienne E.

“…Felid spermatozoa are sensitive to cryopreservation-induced damage, but functional losses can be mitigated by post-thaw swim-up or density gradient processing…”
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Oxidative Phosphorylation Is Essential for Felid Sperm Function, but Is Substantially Lower in Cheetah (Acinonyx jubatus) Compared to Domestic Cat (Felis catus) Ejaculate by TERRELL, Kimberly A, WILDT, David E, ANTHONY, Nicola M, BAVISTER, Barry D, LEIBO, S. P, PENFOLD, Linda M, MARKER, Laurie L, CROSIER, Adrienne E

“…Compared with the normospermic domestic cat, sperm metabolic function is compromised in the teratospermic cat and cheetah, but the pathway(s) involved in this…”
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Glycolytic Enzyme Activity Is Essential for Domestic Cat (Felis catus) and Cheetah (Acinonyx jubatus) Sperm Motility and Viability in a Sugar-Free Medium by TERRELL, Kimberly A, WILDT, David E, ANTHONY, Nicola M, BAVISTER, Barry D, LEIBO, S. P, PENFOLD, Linda M, MARKER, Laurie L, CROSIER, Adrienne E

“…We have previously reported a lack of glucose uptake in domestic cat and cheetah spermatozoa, despite observing that these cells produce lactate at rates that…”
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Cryopreservation of mammalian embryos: Derivation of a method by Leibo, S.P., Sztein, Jorge M.

“…In 1972, a procedure was derived to cryopreserve mouse embryos. Over the past four decades, this procedure has been adapted to freeze embryos of more than…”
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Effects of cryoprotectants and cryopreservation on germinal vesicle-stage cumulus–oocyte complexes of rhesus monkeys by VandeVoort, Catherine A., Ph.D, Shirley, Cynthia R., Ph.D, Hill, Dana L., B.S, Leibo, S.P., Ph.D

“…Objective To determine the effect on rhesus germinal vesicle-stage oocytes enclosed within cumulus cells (COCs) of cryopreservation either by slow, equilibrium…”
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Membrane transport properties of equine and macaque ovarian tissues frozen in mixtures of dimethylsulfoxide and ethylene glycol by Kardak, A, Leibo, S P, Devireddy, R

“…The rate at which equine and macaque ovarian tissue sections are first cooled from +25 degrees C to +4 degrees C has a significant effect on the measured water…”
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Cryopreservation of mouse spermatozoa. II. Relationship between survival after cryopreservation and osmotic tolerance of spermatozoa from three strains of mice by SONGSASEN, N, LEIBO, S. P

“…A procedure to cryopreserve mouse spermatozoa has been derived to bank the genetics of valuable strains of mice in a practical way. The primary objective of…”
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Nuclear maturation of canine oocytes cultured in protein-free media by Songsasen, N., Yu, I., Leibo, S.P.

“…The objective of this study was to determine the ability of canine oocytes to complete nuclear maturation in a protein‐free medium. Oocytes obtained from…”
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Differences among dogs in response of their spermatozoa to cryopreservation using various cooling and warming rates by Yu, I, Songsasen, N, Godke, R.A, Leibo, S.P

“…Spermatozoa collected from the caudae epididymides of 16 dogs of various breeds were suspended in an isotonic salt solution (DIMI medium) containing 0.6 M…”
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Subzero water transport characteristics of boar spermatozoa confirm observed optimal cooling rates by Devireddy, R.V., Fahrig, B., Godke, R.A., Leibo, S.P.

“…Incomplete understanding of the water transport parameters (reference membrane permeability, Lpg, and activation energy, ELp) during freezing in the presence…”
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Cryopreservation of oocytes and embryos: Optimization by theoretical versus empirical analysis by Leibo, S.P.

“…Embryos and oocytes were first successfully cryopreserved more than 30 years ago. This procedure has come to be an important, almost essential component in the…”
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Suprazero cooling conditions significantly influence subzero permeability parameters of mammalian ovarian tissue by Devireddy, R.V., Li, G., Leibo, S.P.

“…To model the cryobiological responses of cells and tissues, permeability characteristics are often measured at suprazero temperatures and the measured values…”
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Effect of chilling bovine oocytes on their developmental competence by Martino, A, Pollard, J.W, Leibo, S.P

“…Bovine oocytes are damaged when chilled to temperatures near 0 degrees C. We have determined the temperatures at which this injury occurs, as well as its…”
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Subzero water transport characteristics and optimal rates of freezing rhesus monkey (Macaca mulatta) ovarian tissue by Li, G., Thirumala, S., Leibo, S.P., Devireddy, R.V.

“…The purpose of the present study was to examine the effect of two different suprazero (room temperature +25°C to +4°C) cooling conditions on the measured water…”
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Effects of meiosis-inhibiting agents and equine chorionic gonadotropin on nuclear maturation of canine oocytes by Songsasen, N., Yu, I., Gomez, M., Leibo, S.P.

“…Experiments were conducted to determine the effects of meiosis‐inhibiting‐agents and gonadotropins on nuclear maturation of canine oocytes. The culture medium…”
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