Results 51 to 60 of about 10,246 (210)

A comprehensive embryonic staging series of the turtle Trachemys scripta

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Turtles hold a unique place in vertebrate evolutionary history, making them critical assets in embryology research. Yet, they remain understudied as potential model organisms in the field. Here, to support experimental manipulations with turtle embryos, we have created a complete normal table of development for comprehensive ...
Christina M. Noravian   +6 more
wiley   +1 more source

Bridging maternal effects and epitranscriptomics: A novel perspective in developmental biology

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Maternal effects, encompassing both genetic (maternally expressed gene products) and non‐genetic (maternal state) influences, are powerful determinants of offspring phenotype, yet their RNA‐level mechanisms remain incompletely resolved. In parallel, epitranscriptomics, an emerging field centered on chemical modifications to RNA, has revealed ...
Ehsan Pashay Ahi
wiley   +1 more source

The evolutionary landscape and serotypic dynamics of avian infectious bronchitis virus from spike protein

open access: yesiMetaOmics, EarlyView.
This study integrates two decades of surveillance with genomic and structural analyses to decipher how spike protein glycosylation haplotypes drive avian coronavirus evolution. We uncover how specific glycosylation patterns associate with receptor‐binding affinity, shape global transmission dynamics, and correlate with clinical outcomes.
Hao Zhang   +21 more
wiley   +1 more source

Enzyme Histochemical Localization of Peroxidase Activity in the Oviduct of Immature, Laying and Non-laying Hens

open access: yesThe Journal of Poultry Science, 2006
Peroxidase may play roles in innate host immunity and affect the sperm survivability in hen oviduct. The aim of this study was to localize the peroxidase activity in the oviduct of hens and to examine whether the activity is affected by the ...
Yukinori Yoshimura   +3 more
doaj   +1 more source

Progesterone initiates tendril formation in the oviducal gland during egg encapsulation in cloudy catshark (Scyliorhinus torazame)

open access: yesZoological Letters, 2023
The diverse reproductive strategies of elasmobranchs (sharks, rays, and skates) have attracted research attention, but the endocrine control of reproduction is still incompletely known in elasmobranchs.
Koya Shimoyama   +6 more
doaj   +1 more source

Organoids and organ‐on‐a‐chip models for investigating the pathophysiology of the human reproductive system

open access: yesInterdisciplinary Medicine, EarlyView.
Organoids and organ‐on‐a‐chips are advancing reproductive system research. In the female reproductive system, applications include cancer organoid models, placental chips, and hormone simulation models. For the male reproductive system, research focuses on drug resistance mechanisms, co‐culture platforms, and infertility studies. These refined in vitro
Hongqi Zhang   +6 more
wiley   +1 more source

Expression of progesterone receptor membrane component-1 in bovine reproductive system during estrous cycle

open access: yesEuropean Journal of Histochemistry, 2011
Several reports suggest the participation of progesterone receptor membrane component 1 (PGRMC1) in progesterone signaling in the reproductive system. This study aimed at investigating the presence and localization of PGRMC1 in bovine ovary, oviduct and ...
A.M. Luciano   +6 more
doaj   +1 more source

Prevalence and Mechanisms of Sustained Force Production in the Musculature of the Southern Alligator Lizard (Elgaria multicarinata)

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT The southern alligator lizard (Elgaria multicarinata) exhibits prolonged mate‐holding behavior. This behavior maybe be underpinned by a phenomenon known as sustained force, observed in the jaw muscles of this species, in which the muscle fails to relax between subsequent contractions.
Allyn Nguyen   +3 more
wiley   +1 more source

Anatomical and Histological Structures of the Female Reproductive System of the Adult Lucerne Leaf Beetle Gonioctena fornicata (Brüggemann, 1873) (Coleoptera: Chrysomelidae)

open access: yesEuropean Journal of Biology
Objective: The aim of this study was to determine the anatomical and histological structures of the female reproductive system of Gonioctena fornicata (Brüggemann, 1873) (Coleoptera: Chrysomelidae), an economically important alfalfa pest, and to ...
Nurcan Özyurt Koçakoğlu   +2 more
doaj   +1 more source

Development, Live Birth and Fertility in Mouse Oocytes Penetrated by Spermatids Exposed to the HDAC Inhibitor Scriptaid. [PDF]

open access: yesReprod Med Biol
ABSTRACT Purpose In mouse embryos derived from round spermatid injection (ROSI), low developmental potential due to abnormal histone modification is improved by histone deacetylase (HDAC) inhibitors. However, some studies suggest that the use of such inhibitors leads to the birth of hypomorphic offspring.
Watanabe S   +9 more
europepmc   +2 more sources

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