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Sperm Capacitation
By: Stephen Ruffenach
| Published: Jul 07, 2009
Sperm capacitation refers to the physiological changes spermatozoa must undergo in order to have the ability to penetrate and fertilize an egg. This…
Sperm CapacitationSpermOvaFertilization
Microsurgical Vasovasostomy
By: Cole Nichols
| Published: Aug 11, 2022
Vasovasostomy is a microsurgical procedure to restore fertility after vasectomy, a surgery that sterilizes the patient by severing the vas deferentia…
TechnologyVasovasostomyVas DeferensMicrosurgeryVas Occlusion
Ovum Humanum: Growth, Maturation, Nourishment, Fertilization and Early Development (1960), by Landrum Brewer Shettles
By: Stephen C. Ruffenach
| Published: Jul 21, 2009
Ovum Humanum was written and compiled by Dr. Landrum Brewer Shettles while he worked as a doctor in New York. The publication contains an atlas of…
LiteraturePublicationsReproductionHuman DevelopmentOva
Developmental Timeline of Alcohol-Induced Birth Defects
By: Erica O'Neil
| Published: Apr 24, 2011
Maternal consumption of alcohol (ethanol) during pregnancy can result in a continuum of embryonic developmental abnormalities that vary depending on…
fetal alcohol syndromeReproductionHuman Development
“Microsurgical Vasovasostomy: The Microdot Technique of Precision Suture Placement” (1998), by Marc Goldstein, Philip Shihua Li, and Gerald J. Matthews
By: Cole Nichols
| Published: Nov 21, 2023
In 1998, urologists Marc Goldstein, Philip Shihua Li, and Gerald J. Matthews published “Microsurgical Vasovasostomy: The Microdot Technique of…
VasectomyVasectomy ReversalVasovasostomyContraceptionGenital Organs
China's First Baby Conceived through In Vitro Fertilization-Embryonic Transfer, by Zhang Lizhu's Research Team
By: Lijing Jiang
| Published: Apr 27, 2011
On 10 March 1988, China's first baby conceived through human in vitro fertilization (IVF) and embryo transfer (ET), commonly referred to as a test-…
ReproductionExperimentsFertility
Shoukhrat Mitalipov and Masahito Tachibana’s Mitochondrial Gene Replacement in Primate Offspring and Embryonic Stem Cells (2009)
By: Giselle Lee
| Published: Jan 10, 2018
Shoukhrat Mitalipov, Masahito Tachibana, and their team of researchers replaced the mitochondrial genes of primate embryonic stem cells via spindle…
monkeysrhesus macaqueSendai virusEmbryonic Stem CellsMitochondrial Diseases
Karl Oskar Illmensee (1939–)
By: Cheryl Lancaster
| Published: Feb 26, 2017
Karl Oskar Illmensee studied the cloning and reproduction of fruit flies, mice, and humans in the US and Europe during the twentieth and twenty-first…
CloningMolecular CloningClone CellsTwinsEmbryos
Amenorrhea as a Menstrual Disorder
By: Emily Santora
| Published: Aug 03, 2021
Amenorrhea is considered a type of abnormal menstrual bleeding characterized by the unexpected absence of menstrual bleeding, lasting three months or…
Amenorrhea, PrimaryMenstruation disordersMenstrual CyclePolycystic ovary syndromeBirth Control
“Effect of Air Quality on Assisted Human Reproduction” (2010), by Richard Legro, Mark V. Sauer, Gilbert L. Mottla, Kevin S. Richter, Xian Li, William C. Dodson, and Duanping Liao
By: Ajeet Bains
| Published: May 05, 2021
In the early 2000s, Richard S. Legro, Mark V. Sauer, Gilbert L. Mottla, Kevin S. Richter, William C. Dodson, and Duanping Liao studied the…
In vitro fertilizationFertilization in VitroIndoor air pollutionPollutionUrban pollution