Results 81 to 90 of about 214,887 (401)
Advanced Science, EarlyView.Different from mitosis, the female meiosis undergoes asymmetric division that produces haploid oocytes and polar body, which is essential for retaining maternal components to support subsequent fertilization and embryo development. However, the underlying mechanisms are still largely unknown.
Yu Li +6 more
wiley +1 more source
Ovary and ovulation: Symmetry and ovulation in women [PDF]
Human Reproduction, 1996 Women have cryptic ovulation, and self-observation methods of determining the timing of ovulation, such as monitoring cervical mucus symptoms or recording basal body temperature, are not reliable. It has recently become apparent that the symmetry of paired soft tissue traits, such as breast size and digit length, changes across the menstrual cycle ...
J.T. Manning, Diane Scutt
openaire +3 more sources
Ciência Rural, 1995 A gonadotrofina coriônica equina (eCG) foi purificada e caracterizada com respeito ao grau de pureza e atividade biológica. A pureza de quatro preparações foi determinada por eletroforese e a atividade biológica pelo incremento do peso ovariano de ratas ...
José Antonio Guimarães Aleixo +4 more
doaj +1 more source
The Octopamine Receptor Octβ2R Regulates Ovulation in Drosophila melanogaster
PLoS ONE, 2014 Oviposition is induced upon mating in most insects. Ovulation is a primary step in oviposition, representing an important target to control insect pests and vectors, but limited information is available on the underlying mechanism.
Junghwa Lim +6 more
semanticscholar +1 more source
Beeinflussung der Augenentwicklung und Seidenfasermodifikation bei Spinnen mittels CRISPR‐Cas
Angewandte Chemie, EarlyView.Spinnen weisen einzigartige Merkmale auf, die in verschiedensten Forschungsbereichen von größtem Interesse sind. Das gezielte Verändern von Genen bietet neue Möglichkeiten, die Forschung voranzutreiben. In dieser Studie entwickelten wir ein CRISPR‐Cas9‐Protokoll für Spinnen, das Gen‐Knock‐outs/Knock‐ins ermöglicht, um zum einen Genfunktionen zu ...
Edgardo Santiago‐Rivera +1 more
wiley +1 more source
Dissection of the Ovulatory Process Using ex vivo Approaches
Frontiers in Cell and Developmental Biology, 2020 Ovulation is a unique physiological phenomenon that is essential for sexual reproduction. It refers to the entire process of ovarian follicle responses to hormonal stimulation resulting in the release of mature fertilization-competent oocytes from the ...
Alexander A. Tokmakov +2 more
doaj +1 more source
Human Reproduction, 2014 STUDY QUESTION Which genes and molecular mechanisms are involved in the human ovulatory cascade and final oocyte maturation? SUMMARY ANSWER Up-regulated genes in granulosa cells (GC) represented inflammation, angiogenesis, extracellular matrix, growth ...
M. L. Wissing +6 more
semanticscholar +1 more source
Spider Eye Development Editing and Silk Fiber Engineering Using CRISPR‐Cas
Angewandte Chemie International Edition, EarlyView.Spiders exhibit unique traits with significant implications for a diversity of fields, and gene editing provides new opportunities for advancing research in these areas. In this study, we developed a CRISPR‐Cas9 protocol for spiders, enabling gene knock‐outs/knock‐ins to study gene function and introduce new phenotypic traits. Abstract CRISPR‐Cas9 gene
Edgardo Santiago‐Rivera +1 more
wiley +1 more source
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2008 Avaliaram-se os efeitos da progesterona (P4) sobre o crescimento folicular e na endocrinologia reprodutiva em ovelhas Bergamácia. Quatorze ovelhas sincronizadas com prostaglandinas (PGF2alfa ) foram distribuídas em dois grupos (n=7/grupo): grupo-controle
L.F. Uribe-Velásquez +2 more
doaj +1 more source
Ovarian growth and ovulation in the mature blue crab, Callinectes sapidus Rathbun [PDF]
, 1942 Introduction. Observations: structure of the ovary during the periods of growth and ovulation in the mature crab (stages 1-5).
Hard, W.L.
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