Results 91 to 100 of about 25,915 (289)

The morphological characteristics and modification of the oviducal glands adapted for long-term sperm storage and fertilization in Amphioctopus fangsiao

open access: yesAquaculture Reports, 2023
Sperm storage is an important reproductive strategy in Amphioctopus fangsiao. Sperm can be stored in the oviducal glands up to eight months before fertilization. However, studies on the underlying storage mechanisms remain limited.
Yan Li   +11 more
doaj  

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

Cell-type specificity of regulatory elements identified by linker scanning mutagenesis in the promoter of the chicken lysozyme gene [PDF]

open access: yes, 1989
The chicken lysozyme gene is constitutively expressed in macrophages, in oviduct cells its expression is controlled by steroid hormones, and in fibroblasts the gene is not expressed.
Luckow, Bruno, Schütz, Günther
core   +2 more sources

Aging‐Associated Vacuolation of Multi‐Ciliated Cells in the Distal Mouse Oviduct Reflects Unique Cell Identity and Luminal Microenvironment

open access: yesAging Cell, EarlyView.
Multi‐ciliated cells in the infundibulum and ampulla (INF/AMP) epithelium are vacuolated in aging. Unique cellular susceptibility of the INF/AMP epithelial population and aging‐associated decline in ovarian artery circulation, which supports the ovary and INF/AMP, contribute to this region‐specific vacuolation phenotype, as a consequence of a mildly ...
Keerthana Harwalkar   +10 more
wiley   +1 more source

Salmonella and campylobacter in organic egg production - with special reference to the Finnish situation [PDF]

open access: yes, 2005
In Finland, an ongoing (2003-2005) research project on organic egg production, animal welfare and food safety is examining campylobacter and salmonella contamination of approximately 20 organic layer farms.
Hänninen, M. L.
core  

IMMACULATE CONCEPTION, INCUBATION PROTOCOLS, AND EGG CHARACTERISTICS OF THE GANGES SOFTSHELL TURTLE (ASPIDERETES GANGETICUS) [PDF]

open access: yes, 2006
Reproductive biology of Aspideretes gangeticus was studied between 1986 and 2001. Clutchsize averaged 17.9 eggs and ranged between six to thirty-fi ve eggs. Egg length averaged 30.6 mm,egg width averaged 30.22 mm, and egg weight averaged 16.85 g.
Whitaker, Nikhil
core   +2 more sources

Cathepsin B Regulates Ovarian Reserve Quality and Quantity via Mitophagy by Modulating IGF1R Turnover

open access: yesAging Cell, EarlyView.
Autophagy regulates ovarian reserve, with Cathepsin B playing a critical role in aging. Inhibition of Cathepsin B increases follicle count, enhances IGF1R–AKT–mTOR signaling and improves mitochondrial function without compromising fertility. This conserved mechanism suggests potential therapeutic strategies to delay ovarian aging and sustain fertility,
Aradhana Mohanty   +8 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

Tracing GFP-labeled WJMSCs in vivo using a chronic salpingitis model: an animal experiment

open access: yesStem Cell Research & Therapy, 2017
Background The present study was conducted to evaluate the distribution of Wharton’s jelly-derived mesenchymal stem cells (WJMSCs) and their repairing function on the oviduct. Methods WJMSCs were transfected with the LV3-GFP-PURO lentivirus.
Zhe Li   +4 more
doaj   +1 more source

Roles of the oviduct in mammalian fertilization [PDF]

open access: yesREPRODUCTION, 2012
The oviduct or Fallopian tube is the anatomical region where every new life begins in mammalian species. After a long journey, the spermatozoa meet the oocyte in the specific site of the oviduct named ampulla and fertilization takes place. The successful fertilization depends on several biological processes that occur in the oviduct some hours before ...
Pablo E. Visconti   +3 more
openaire   +3 more sources

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