Results 41 to 50 of about 59,744 (316)

The C. elegans eggshell [PDF]

WormBook, 2018
In all animals, oocytes are surrounded by an extracellular matrix upon fertilization. This matrix serves similar purposes in each animal. It functions to mediate sperm binding, to prevent polyspermy, to control the chemical environment of the embryo, and to provide physical protection to the embryo as it developes. The synthesis of the C.
Kathryn K, Stein, Andy, Golden
openaire   +2 more sources

Evolution of the Avian Eggshell Biomineralization Protein Toolkit – New Insights From Multi-Omics

Frontiers in Genetics, 2021
The avian eggshell is a remarkable biomineral, which is essential for avian reproduction; its properties permit embryonic development in the desiccating terrestrial environment, and moreover, are critically important to preserve unfertilized egg quality ...
Nathalie Le Roy, Lilian Stapane, Joël Gautron, Maxwell T. Hincke, Maxwell T. Hincke   +4 more
doaj   +1 more source

Identification of novel chondroitin proteoglycans in Caenorhabditis elegans: embryonic cell division depends on CPG-1 and CPG-2. [PDF]

, 2006
Vertebrates produce multiple chondroitin sulfate proteoglycans that play important roles in development and tissue mechanics. In the nematode Caenorhabditis elegans, the chondroitin chains lack sulfate but nevertheless play essential roles in embryonic ...
Bishop, Joseph R, Esko, Jeffrey D, Oegema, Karen, Olson, Sara K, Yates, John R   +4 more
core   +2 more sources

Shell gland RNA-seq reveals key genes regulating eggshell quality and potential links between eggshell quality and hatchability across different laying stages

Poultry Science
The quality of hatching eggs and their hatchability are key factors affecting the production efficiency of breeding flocks. The quality of hatching eggs is commonly graded directly based on the eggshell quality.
Chenxi Zhang, Ranran Cao, Siqin Wei, Shu Wang, Zhao Cai, Junlai Shi, Yanru Lei, Kejun Wang, Yadong Tian, Guirong Sun, Xiangtao Kang, Wenting Li   +11 more
doaj   +1 more source

Eggshell strength [PDF]

Biotechnology in Animal Husbandry, 2004
Eggshell quality was studied in two groups of Shaver hens (300 hens per group) 30 weeks of age. All hens received a basic diet of the same composition with pulverized limestone as a source of calcium. The experimental group received 2 g of granular limestone (particle size 1.1-1.4 mm) per hen per day during one week, adding on the concentrate in the ...
Dusko Vitorovic, Zlatica Pavlovski, Zdenka Skrbic, Milos Lukic, Ivana Adamovic   +4 more
openaire   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Dietary supplementation with sodium bicarbonate or sodium sulfate affects eggshell quality by altering ultrastructure and components in laying hens

Animal, 2021
Dietary sodium (Na) levels were related to the content of the eggshell matrix. We therefore speculated that dietary Na supplementation as sodium bicarbonate (NaHCO3) or sodium sulfate (Na2SO4) may improve eggshell quality. Additionally, dietary NaHCO3 or
Y. Fu, H.J. Zhang, S.G. Wu, J.M. Zhou, G.H. Qi, J. Wang   +5 more
doaj   +1 more source

Assembly of the Inner Perivitelline Layer, a Homo log of the Mammalian Zona Pellucida: An Immunohistochemical and Ultrastructural Study [PDF]

, 2012
The avian inner perivitelline layer (IPVL), a homologous structure to the mammalian zona pellucida, is deposited between the granulosa cells and the oocyte cell membrane during folliculogenesis. The glycoprotein meshwork of the IPVL forms a 3-dimensional
Bausek N., Bramwell R.K., Callebaut I., Daniela Rodler, Dunbar B.S., Epifano O., Fred Sinowatz, Goudet G., Jovine L., Jovine L., King A.S., Kinoshita M., Lefievre L., Litscher E.S., Menkhorst E., Mori M., Mugnier S., Pan J., Rahman M.A., Rahman M.A., Richardson K.C., Sasanami T., Sasanami T., Sasanami T., Sasanami T., Sato T., Sinowatz F., Smith J., Spargo S.C., Stewart S.G., Takeuchi Y., Tomohiro Sasanami, Waclawek M., Wassarman P.M., Wassarman P.M., Wassarman P.M., Wyburn G.M., Wyburn G.M.   +37 more
core   +1 more source

Anisotropic Shear Properties of Organic Interfaces in Bio‐composite Materials

Advanced Functional Materials, EarlyView.
A novel cantilever design enables direct probing of shear properties at single organic interfaces within biocomposite prismatic ultrastructures. By decoupling lateral and torsional shear responses, the method reveals isotropic behavior in Atrina vexillum and pronounced anisotropy in Unio pictorum.
Kian Tadayon, Benny Bar‐On, Igor Zlotnikov   +2 more
wiley   +1 more source

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

Advanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song, Evelyn Kubacki, Alexander Berger, Markus Retsch   +3 more
wiley   +1 more source