Results 61 to 70 of about 8,535 (205)

Embryogenesis in Myrmicine Ants Combines Features of Short Germ‐Band Development With a Progressive Mode of Segmentation

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Different insect species exhibit remarkable diversity in the developmental trajectories from fertilized eggs to hatching larvae. For three myrmicine ant species, we observe a novel combination of a developmental features: small embryonic primordia, a mode of embryogenesis termed short/intermediate germ‐band development, and progressive establishment of
Chi‐Chun Fang, Arjuna Rajakumar, Andrew Kenny, Ulrich G. Mueller, Ehab Abouheif, David Stein   +5 more
wiley   +1 more source

Developmental potential of trunk neural crest cells in the mouse [PDF]

, 1994
The availability of naturally occurring and engineered mutations in mice which affect the neural crest makes the mouse embryo an important experimental system for studying neural crest cell differentiation.
Bronner-Fraser, Marianne, Fraser, Scott E., Serbedzija, George N.   +2 more
core  

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Conceptus signals for establishment and maintenance of pregnancy

Reproductive Biology and Endocrinology, 2004
Establishment and maintenance of pregnancy results from signaling by the conceptus (embryo/fetus and associated extraembryonic membranes) and requires progesterone produced by the corpus luteum (CL).
Bazer Fuller W, Spencer Thomas E
doaj   +1 more source

Perception of differentiation cues by GATA factors in primitive endoderm lineage determination of mouse embryonic stem cells [PDF]

, 2005
The formation of the primitive endoderm covering the inner cell mass of early mouse embryos can be simulated in vitro by the differentiation of mouse embryonic stem (ES) cells in culture following either aggregation of suspended cells or stimulation of ...
Capo-chichi, Callinice D., Godwin, Andrew K., Morrisey, Edward E., Parmacek, Michael S., Rula, Malgorzata E., Smedberg, Jennifer L., Vanderveer, Lisa, Xu, Xiang-Xi   +7 more
core   +1 more source

Analysis of Gene Expression in Aedes aegypti Suggests Changes in Early Genetic Control of Mosquito Development

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
ABSTRACT Aedes aegypti, a critical vector for tropical diseases, poses significant challenges for studying its embryogenesis due to difficulties in removing its rigid chorion and achieving effective fixation for in situ hybridization. Here, we present novel methodologies for fixation, dechorionation, DAPI staining, and in situ hybridization, enabling ...
Renata Coutinho‐dos‐Santos, Danielle Santos, Lupis Ribeiro, Jonathan J. Mucherino‐Muñoz, Marcelle Uhl, Carlos Logullo, A. Mendonça‐Amarante, M. Fantappie, Rodrigo Nunes‐da‐Fonseca   +8 more
wiley   +1 more source

A staging scheme for the development of the scuttle fly Megaselia abdita [PDF]

, 2017
This is the final version of the article. Available from the publisher via the DOI in this record.Model organisms, such as Drosophila melanogaster, provide powerful experimental tools for the study of development.
García Matheu, B, Jaeger, J, Jiménez-Guri, E, Wotton, KR   +3 more
core   +1 more source

BRD9 inhibition as potential treatment option for testicular germ cell tumors

Andrology, EarlyView.
Abstract Background Testicular germ cell tumors (TGCT) are the predominant tumor in younger males. Usually, 5‐year survival rates are quite high, but 15–20% of patients with metastatic non‐seminomas are resistant to standard cisplatin‐based therapy.
Aylin Hansen, Christine Sanders, Florian Fronhoffs, Kai Funke, Glen Kristiansen, Hubert Schorle   +5 more
wiley   +1 more source

Postgastrular zen expression is required to develop distinct amniotic and serosal epithelia in the scuttle fly Megaselia [PDF]

, 2010
The amnioserosa is an extraembryonic epithelium that evolved in higher cyclorrhaphan flies from distinct serosal and amniotic epithelia. The underlying genetic mechanism of this evolutionary transition is unknown.
Lemke, Steffen, Rafiqi, Ab. Matteen, Schmidt-Ott, Urs   +2 more
core   +1 more source

Germ cell and other tumors in individuals with differences in sex development

CA: A Cancer Journal for Clinicians, EarlyView.
Abstract Approximately one in 3500 to one in 5100 live‐born infants have atypical external genital development, known as differences in sex development (DSD). In 2005, an expert consensus conference thoroughly reviewed aspects of health care for individuals with DSD.
Selma Feldman Witchel, Miguel Reyes‐Múgica   +1 more
wiley   +1 more source