Progesterone significantly enhances the mobility of boar spermatozoa [PDF]
BioDiscovery, 2013 Progesterone released from the cumulus cells of the oocyte causes a number of physiological responses in human sperm cells including hyperactivation, acrosome reaction and chemotaxis. We employed a validated sperm mobility assay, which involves measuring
Johan M. Campbell +6 more
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Enhancement of rat spermatozoal hyperactivation by progesterone
The Journal of Reproduction and Development, 2023 Progesterone (P) is a well-known enhancer of hyperactivation which is associated with the success of in vitro fertilization (IVF). In this study, we examined whether P-enhanced hyperactivation affected IVF success in rats.
Yuki MIYAZAWA, Masakatsu FUJINOKI
doaj +3 more sources
Flagellar hyperactivation of bull and boar spermatozoa [PDF]
Reproductive Medicine and Biology, 2018 Background In mammals, flagellar hyperactivation is indispensable to sperm fertilization with oocytes in vivo, although there are species differences in regulatory mechanisms for this event.
Hiroshi Harayama
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Novel African trypanocidal agents: membrane rigidifying peptides [PDF]
, 2012 The bloodstream developmental forms of pathogenic African trypanosomes are uniquely susceptible to killing by small hydrophobic peptides. Trypanocidal activity is conferred by peptide hydrophobicity and charge distribution and results from increased ...
Andreas Hartel +8 more
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Heat-Induced Hyperactivation [PDF]
Journal of Assisted Reproduction and Genetics, 1998 The objectives of this study were (1) to determine the sperm hyperactivation and related kinematic parameters at 40 degrees C after using four sperm wash procedures and (2) to correlate the heat-induced hyperactivation data with cases of clinical pregnancies from either artificial insemination or standard in vitro fertilization (IVF).Semen samples (n =
P J, Chan +4 more
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Morphology comparison of individually selected hyperactivated and non-hyperactivated human spermatozoa [PDF]
Human Reproduction, 1999 The objective of this study was to compare the morphology of human spermatozoa undergoing hyperactivated motility in vitro with those that were non-hyperactivated (non-hyp). Hyperactivation criteria were established by the Hobson Sperm Tracker (HST), sampling at 25 Hz, as curvilinear velocity (VCL) > or = 70 microns/s, amplitude of lateral head ...
S, Green, S, Fishel
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Functional Brain Hyperactivations Are Linked to an Electrophysiological Measure of Slow Interhemispheric Transfer Time after Pediatric Moderate/Severe Traumatic Brain Injury. [PDF]
, 2020 Increased task-related blood oxygen level dependent (BOLD) activation is commonly observed in functional magnetic resonance imaging (fMRI) studies of moderate/severe traumatic brain injury (msTBI), but the functional relevance of these hyperactivations ...
Asarnow, Robert F +10 more
core +2 more sources
Uncoupled pyroptosis and IL-1β secretion downstream of inflammasome signaling
Frontiers in Immunology, 2023 Inflammasomes are supramolecular platforms that organize in response to various damage-associated molecular patterns and pathogen-associated molecular patterns.
Yang Li, Qianzhou Jiang
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Auditory feedback control mechanisms do not contribute to cortical hyperactivity within the voice production network in adductor spasmodic dysphonia [PDF]
, 2020 Adductor spasmodic dysphonia (ADSD), the most common form of spasmodic dysphonia, is a debilitating voice disorder characterized by hyperactivity and muscle spasms in the vocal folds during speech.
Blood, Anne +7 more
core +1 more source
A quadratic function of activation in individuals at risk of Alzheimer's disease
Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, 2020 Introduction Brain activation is hypothesized to form an inverse U‐shape in prodromal Alzheimer's disease (AD), with hyperactivation in the early phase, followed by hypoactivation.
Nick Corriveau‐Lecavalier +7 more
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