A multicenter, prospective sibling oocyte study revealed that HyperSperm™ improves the number and quality of embryos in patients undergoing in vitro fertilization [PDF]
Journal of Translational MedicineBackground Assisted reproductive technologies (ART), including in vitro fertilization (IVF), have transformed the treatment of infertility; however, success rates remain suboptimal.
Natalia Oscoz-Susino +15 more
doaj +2 more sources
De Novo Transcriptome Assembly Reveals Insights Into Osmoregulation and Oxidative Stress Response in the Gills of the Southern King Crab (<i>Lithodes santolla</i>). [PDF]
Ecol EvolThe Southern King Crab (Lithodes santolla), an ecologically and commercially important species in sub‐Antarctic waters. In this study, we assembled the first gill de novo transcriptome of L. santolla to characterize gene expression related to environmental responses.
Brante A +5 more
europepmc +2 more sources
End of the Season Blues: Senescence and Reproductive Trade-Offs in Male Scorpions [PDF]
InsectsSeasonal reproductive dynamics and senescence have profound impacts on male fertility, yet these processes remain understudied in scorpions. This study investigates how reproductive parameters—such as testicular mass, sperm quantity, and viability—change
David E. Vrech +3 more
doaj +2 more sources
Human oocyte capacitation culture: Essential step toward hormone-free assisted reproductive technology. [PDF]
Reprod Med BiolThe biphasic CAPA‐IVM system promotes oocyte competence acquisition. The use of CAPA‐IVM in clinical studies has set the tone for major progress in the field and is achieving a safer, less expensive, and less emotionally loaded IVF experience, currently validated for PCOS patients.
Smitz J +8 more
europepmc +2 more sources
New records of Amphisbaena medemi Gans & Mathers, 1977 (Squamata: Amphisbaenidae) from the Caribbean region of northern Colombia [PDF]
Check List, 2015 This report extends the distribution range of Amphisbaena medemi to the southeast foothills of the Sierra Nevada de Santa Marta and western foothills of the Serranía del Perijá in La Guajira department, Colombia.
Fabio Meza-Joya
doaj +3 more sources
First records of two rain frogs, genus Pristimantis (Anura, Craugastoridae), for Colombia [PDF]
Check List, 2016 Pristimantis yukpa and P. rivasi are two rain frogs recently described from Sierra de Perijá in Venezuela. Although these species have been expected to occur in the Colombian side of this mountain range, no evidence of their presence was available to ...
Fabio Meza-Joya
doaj +3 more sources
Membrane Potential Assessment by Fluorimetry as a Predictor Tool of Human Sperm Fertilizing Capacity
Frontiers in Cell and Developmental Biology, 2020 Mammalian sperm acquire the ability to fertilize eggs by undergoing a process known as capacitation. Capacitation is triggered as the sperm travels through the female reproductive tract.
Carolina Baro Graf +8 more
doaj +1 more source
First record of Ninia atrata (Hallowell, 1845) (Squamata: Colubridae) from Sierra Nevada de Santa Marta, northern Colombia [PDF]
Check List, 2015 The current work provides the first confirmed record of Ninia atrata in the northern foothills of the Sierra Nevada de Santa Marta, La Guajira department, Colombia. This record extends the Colombian known species’ distribution ca.
Fabio Meza-Joya
doaj +3 more sources
Biology Open, 2018 Oocyte in vitro maturation does not entirely support all the nuclear and cytoplasmic changes that occur physiologically, and it is poorly understood whether in vitro maturation affects the competence of cortical granules to secrete their content during ...
Andrea I. Cappa +4 more
doaj +1 more source
Euphonia hirundinacea: Observaciones reproductivas en las Altas Montañas, Veracruz, México
Huitzil, 2020 El estudio de la biología reproductiva de las aves permite predecir e identificar especies susceptibles a un mayor riesgo de extinción o llevar a cabo manejo de poblaciones con fines de conservación.
Axel Fuentes Moreno +3 more
doaj +1 more source