Results 101 to 110 of about 202,395 (319)

Primary intrarenal yolk sac tumor

open access: yesIndian Journal of Urology, 2017
Extragonadal germ cell tumors (EGGCTs) usually are not coexistent with a gonadal tumor, hence in a way, are primary and are rare. The origin of primary EGGCT is still a matter of debate. Herewith, we report a patient with primary intrarenal yolk sac tumor in a 43-year-old man.
S Annapurneshwari   +2 more
openaire   +4 more sources

Autonomous murine T-cell progenitor production in the extra-embryonic yolk sac before HSC emergence.

open access: yesBlood, 2012
The extra-embryonic yolk sac (YS) is the first hematopoietic site in the mouse embryo and is thought to generate only primitive erythroid and myeloerythroid progenitor cells before definitive HSC emergence within the embryo on E10.5.
M. Yoshimoto   +7 more
semanticscholar   +1 more source

BMP4 regulates asymmetric Pkd2 distribution in mouse nodal immotile cilia and ciliary mechanosensing required for left–right determination

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Mouse nodal immotile cilia mechanically sense the bending direction for left–right (L–R) determination and activate the left‐side‐specific signaling cascade, leading to increased Nodal activity. Asymmetric distribution of Pkd2, a crucial channel for L–R determination, on immotile cilia has been reported recently. However, the causal
Takanobu A. Katoh   +5 more
wiley   +1 more source

FECT OF EXPERIMENT AL YOLK SAC INFECTION WITH STAPHYLOCOCCUS

open access: yesPakistan Veterinary Journal, 2003
The present project was carried out to study the effect of experimental yolk sac infection with Staphylocvccus aureus on immune status of broiler chicks. For this purpose, one hundred day-old chicks were divided into two groups A and B.
M. F. Rai, S. A. Khan, A. Aslam. K. Saeed, 1K. A. Khan and M. S. Shah
doaj  

A network of transient domains for breaking symmetry during anterior–posterior axis formation in the porcine embryo

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Breaking radial symmetry for anterior–posterior axis formation is one of the key developmental steps of vertebrate gastrulation and is established through a succession of transient domains defined by morphology or gene expression. Three such domains were interpreted recently in the rabbit to be part of a “three‐anchor‐point model” for axis ...
Ruben Plöger   +2 more
wiley   +1 more source

The planktonic food web in the Gulf of Naples based on the analysis of carbon and nitrogen stable isotope ratios

open access: yesMarine Ecology, EarlyView., 2023
Abstract Plankton play a key role in marine food webs by producing and transferring organic matter and energy to higher trophic levels. To define the trophic structure and interactions within the planktonic communities in the Gulf of Naples, we determined carbon and nitrogen stable isotope ratios in particulate organic matter (POM, <20 μm ...
Louise Merquiol   +2 more
wiley   +1 more source

Development of a Zebrafish Embryo‐Based Test System for Thyroid Hormone System Disruption: 3Rs in Ecotoxicological Research

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract There is increasing concern regarding pollutants disrupting the vertebrate thyroid hormone (TH) system, which is crucial for development. Thus, identification of TH system–disrupting chemicals (THSDCs) is an important requirement in the Organisation for Economic Co‐operation and Development (OECD) testing framework.
Lisa Gölz   +9 more
wiley   +1 more source

Interrelationships among egg, larvae and maternal characteristics in Persian sturgeon Acipenser persicus

open access: yesBrazilian Archives of Biology and Technology, 2010
This study was aimed to observe the correlations among egg, larvae and maternal characteristics of Persian sturgeon. A total of 41 females were used and the variables including fertilization rate, incubation survival rate, larvae survival rate during ...
Rajab Mohammad Nazari   +2 more
doaj   +1 more source

Pathways to Progressive Disability in Multiple Sclerosis: The Role of Glial Cells in Chronic CNS Inflammation

open access: yesGlia, EarlyView.
Multiple sclerosis involves chronic CNS inflammation and neurodegeneration. This review highlights glial cells as key drivers in progressive MS, focusing on lesion pathology, molecular dysfunction, and human‐relevant model systems. ABSTRACT Multiple sclerosis (MS) is the most common non‐infectious inflammatory CNS disease, characterized by progressive ...
Volker Siffrin
wiley   +1 more source

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