نتایج جستجو برای: invagination

تعداد نتایج: 1716  

Journal: :Philosophical Transactions of the Royal Society B: Biological Sciences 2017

Journal: :Neurologia medico-chirurgica 2006
Hasan Caglar Ugur Gokmen Kahilogullari Ayhan Attar Sukru Caglar Ali Savas Nihat Egemen

Two patients presented with congenital basilar invagination manifesting as progressive myelopathy. Both patients underwent surgery using a neuronavigation-assisted transoral-transpharyngeal approach. The Brain-LAB Vector Vision navigation system was used for image guidance. The registration accuracies were 0.9 and 1.3 mm. After decompression, posterior stabilization was performed. Both patients...

Journal: :Arquivos de neuro-psiquiatria 2014
Paulo Victor Sgobbi de Souza Wladimir Bocca Vieira de Rezende Pinto Acary Souza Bulle Oliveira

A 52-year-old man presented with a 2-year-history of recurrent torticollis and headache associated with physical exertion (including evacuation). His physical examination disclosed short neck and brachycephaly. Neuroimaging studies (Figures 1 and 2) revealed basilar invagination and brainstem compression without other craniocervical junction abnormalities or systemic diseases. Basilar invaginat...

Journal: :The Journal of Cell Biology 1993
L L Carter T E Redelmeier L A Woollenweber S L Schmid

We have examined the effects of various agonists and antagonists of GTP-binding proteins on receptor-mediated endocytosis in vitro. Stage-specific assays which distinguish coated pit assembly, invagination, and coat vesicle budding have been used to demonstrate requirements for GTP-binding protein(s) in each of these events. Coated pit invagination and coated vesicle budding are both stimulated...

2017
Esther J Pearl Jingjing Li Jeremy B A Green

Epithelial invagination is a fundamental module of morphogenesis that iteratively occurs to generate the architecture of many parts of a developing organism. By changing the physical properties such as the shape and/or position of a population of cells, invagination drives processes ranging from reconfiguring the entire body axis during gastrulation, to forming the primordia of the eyes, ears a...

Journal: :Development 2004
Jeffrey H Thomas Eric Wieschaus

Formation of the Drosophila cellular blastoderm involves both membrane invagination and cytoskeletal regulation. Mutations in src64 and tec29 reveal a novel role for these genes in controlling contraction of the actin-myosin microfilament ring during this process. Although membrane invagination still proceeds in mutant embryos, its depth is not uniform, and basal closure of the cells does not o...

2016
Silvia Urbansky Paula González Avalos Maike Wosch Steffen Lemke

Gastrulation constitutes a fundamental yet diverse morphogenetic process of metazoan development. Modes of gastrulation range from stochastic translocation of individual cells to coordinated infolding of an epithelial sheet. How such morphogenetic differences are genetically encoded and whether they have provided specific developmental advantages is unclear. Here we identify two genes, folded g...

2015
Rosa A. Uribe Ailín L. Buzzi Marianne E. Bronner Pablo H. Strobl-Mazzulla

In vertebrates, the inner ear arises from the otic placode, a thickened swathe of ectoderm that invaginates to form the otic vesicle. We report that histone demethylase KDM4B is dynamically expressed during early stages of chick inner ear formation. A loss of KDM4B results in defective invagination and striking morphological changes in the otic epithelium, characterized by abnormal localization...

2015
Aleksandra Jaworucka-Kaczorowska Grzegorz Oszkinis Juliusz Huber Agnieszka Wiertel-Krawczuk Elżbieta Gabor Paweł Kaczorowski

OBJECTIVES Saphenous nerve injury is the most common complication after surgical treatment of varicose veins. The aim of this study was to establish its frequency at great saphenous vein long stripping when four methods of surgery were applied. METHODS Eighty patients were divided into four groups depending on different stripping methods. Sensory transmission in saphenous nerve and sensory pe...

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