Results 101 to 110 of about 114,907,480 (246)
Involvement of PLA2, COX and LOX in Rhinella arenarum oocyte maturation [PDF]
, 2013 In Rhinella arenarum, progesterone is the physiological nuclear maturation inducer that interacts with oocyte surface and starts a cascade of events leading to germinal vesicle breakdown (GVBD).
Bühler, Marta Ines +2 more
core +1 more source
Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus
Insect Science, EarlyView.Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami +2 more
wiley +1 more source
LsFAMeT and LsJHAMT coordinate JH biosynthesis to regulate fecundity in Laodelphax striatellus
Insect Science, EarlyView.The small brown planthopper (SBPH), Laodelphax striatellus, can trigger large‐scale outbreaks when encountering suitable habitats during migration due to their strong reproductive ability. This study investigated the role of juvenile hormone (JH) in regulating SBPH reproduction.
Yan Guo +3 more
wiley +1 more source
Impact of xenotransplantation of sheep ovarian cortex and follicular fluid- enriched SMART medium on the morphology of recovered of sheep oocyte [PDF]
Mirror of Research in Veterinary Sciences and Animals, 2017 Ovarian follicles and cortical tissue can survive viable after ovariectomy and use successfully for xenotransplantation or in vitro maturation. This study designed to assess in vitro maturation (IVM) of sheep oocytes recovered from immature follicles ...
Muhammad Baqir M.R. Fakhrildin +2 more
doaj
Integrative Zoology, EarlyView.Integrated transcriptomic and proteomic analyses were used to validate gonadal development–related genes and to identify a sex‐specific molecular marker in Hucho bleekeri. ABSTRACT Sex determination and differentiation represent fundamental topics in reproductive biology. Sichuan taimen (Hucho bleekeri), a first‐class national protected fish species in
Qinyao Wei +5 more
wiley +1 more source
Stereological study of organelle distribution in human mature oocytes
Scientific ReportsThe ultrastructure of human oocytes has been described only qualitatively. To offer a precise organelle spatial distribution and organelle volume during the main maturation stages, we previously conducted stereological studies on prophase-I (GV) and ...
Tânia Santos +11 more
doaj +1 more source
Add-On Technologies That Aim to Improve Oocyte Quality and Embryo Implantation Potential
MedicinaAdvancements in assisted reproductive technologies (ARTs) have led to the development of various add-on techniques aimed at improving oocyte quality and enhancing embryo implantation potential.
Nikos Petrogiannis +7 more
doaj +1 more source
Geographical Variation in Thermal Adaptation of the Asiatic Toad (Bufo gargarizans)
Integrative Zoology, EarlyView.Northern and southern populations of Bufo gargarizans exhibit coordinated divergence in thermal preference, resting metabolic rate, and TRPM4 temperature sensitivity along a climatic gradient. ABSTRACT Thermal adaptation in animals can manifest in multiple dimensions, yet few studies have integrated behavioral, physiological, and molecular perspectives
Longcheng Fan, Yonghua Wu
wiley +1 more source
Molecular Mechanisms of Gonadotropin-Induced Oocyte Maturation
, 2004 In vitro maturation of oocytes is routinely utilized for the production of embryos for commercial as well as research purposes. The objectives of the research described in this dissertation were: 1) to examine the molecular mechanism involved in ...
Rodriguez, Karina Flores
core
Porcine oocyte maturation in vitro : role of cAMP and oocyte-secreted factors: a practical approach [PDF]
, 2016 Polyspermy or the penetration of more than one sperm cell remains a problem during porcine in vitro fertilization (IVF). After in vitro culture of porcine zygotes, only a low percentage of blastocysts develop and their quality is inferior to that of in ...
Maes, Dominiek +4 more
core