Results 101 to 110 of about 63,560 (282)

Metastatic Cutaneous Adnexal Carcinoma of the Head and Neck With Durable Response to an Aromatase Inhibitor Combined With a Cyclin‐Dependent Kinase 4/6 Inhibitor

open access: yesHead &Neck, EarlyView.
ABSTRACT Background Cutaneous adnexal carcinomas are a very rare group of cancers arising from appendageal structures of the skin. More than half occur in the head and neck region. No standard treatments exist for metastatic disease. Methods A 48‐year‐old postmenopausal female presented with an enlarging scalp lesion.
Nilesh Kapoor   +3 more
wiley   +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

Competence, specification and commitment in otic placode induction [PDF]

open access: yes, 2000
The inner ear is induced from cranial ectoderm adjacent to the hindbrain. Despite almost a century of study, the molecular mechanisms of inner ear induction remain obscure. We have identified four genes expressed very early in the anlage of the inner ear,
Bronner-Fraser, Marianne   +1 more
core  

Data on microRNAs and microRNA-targeted mRNAs in Xenopus ectoderm

open access: yesData in Brief, 2016
Small RNAs from early neural (i.e., Noggin-expressing, or NOG) and epidermal (expressing a constitutively active BMP4 receptor, CABR) ectoderm in Xenopus laevis were sequenced to identify microRNAs (miRs) expressed in each tissue.
Vrutant V. Shah   +5 more
doaj   +1 more source

Liver X Receptor α (LXRα) Regulates 5β‐Reductase (AKR1D1) Expression in Avian Embryos: Implications for Yolk Steroid Metabolism

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Steroid‐mediated maternal effects are well‐studied as a source of phenotypic variation. In bird eggs, the yolk contains various steroids that can influence embryonic development. However, one complicating factor in understanding how yolk steroids affect development is that the embryo metabolizes yolk steroids to regulate exposure.
Ryan T. Paitz   +4 more
wiley   +1 more source

EphrinB/EphB signaling controls embryonic germ layer separation by contact-induced cell detachment.

open access: yesPLoS Biology, 2011
BackgroundThe primordial organization of the metazoan body is achieved during gastrulation by the establishment of the germ layers. Adhesion differences between ectoderm, mesoderm, and endoderm cells could in principle be sufficient to maintain germ ...
Nazanin Rohani   +4 more
doaj   +1 more source

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

open access: yesJournal 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

Control of germ-band retraction in Drosophila by the zinc-finger protein HINDSIGHT [PDF]

open access: yes, 1997
Drosophila embryos lacking hindsight gene function have a normal body plan and undergo normal germ-band extension. However, they fail to retract their germ bands.
Lamka, Michele L.   +2 more
core  

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

open access: yesJournal 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   +8 more
wiley   +1 more source

Expanding the genotypic spectrum of PCSK1 deficiency: A novel mutation in severe neonatal diarrhea

open access: yesJPGN Reports, EarlyView.
Abstract Among congenital diarrhea and enteropathies (CODEs), proprotein convertase subtilisin/kexin type 1 (PCSK1) deficiency is a rare monogenic disorder, associated with severe neonatal diarrhea and polyendocrinopathies. We report an 18‐day‐old male neonate, born to consanguineous parents, presenting with persistent watery diarrhea, metabolic ...
Eleonora Saraceno   +7 more
wiley   +1 more source

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