نتایج جستجو برای: sma

تعداد نتایج: 18948  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1996
K Shima H Mushiake N Saito J Tanji

Two motor areas are known to exist in the medial frontal lobe of the cerebral cortex of primates, the supplementary motor area (SMA) and the presupplementary motor area (pre-SMA). We report here on an aspect of cellular activity that characterizes the pre-SMA. Monkeys were trained to perform three different movements sequentially in a temporal order. The correct order was planned on the basis o...

2014
Clyde W. Holsapple Shih-Hui Hsiao Ramakrishnan Pakath

Based on a review of 27 research papers related to social media analytics (SMA), we develop an integrated, unifying definition of Business SMA, providing a nuanced starting point for future Business SMA research. Our definition goes beyond being entirely customer-focused, encompasses both the external and internal organizational environs, and goes beyond intelligence gathering to also accommoda...

Journal: :Muscle & nerve 2014
Molly F Wood Sarah C Hughes Lauren P Hache Edwin W Naylor Hoda Z Abdel-Hamid M Michael Barmada Steven F Dobrowolski David E Stickler Paula R Clemens

INTRODUCTION Disease inclusion in the newborn screening (NBS) panel should consider the opinions of those most affected by the outcome of screening. We assessed the level and factors that affect parent attitudes regarding NBS panel inclusion of Duchenne muscular dystrophy (DMD), Becker muscular dystrophy (BMD), and spinal muscular atrophy (SMA). METHODS The attitudes toward NBS for DMD, BMD, ...

2012
Balraj Mittal

inherited autosomal neuromuscular disorder which is characterized by progressive muscle weakness and is the leading genetic cause of childhood deaths. The SMA is clinically heterogenous and clinical spectrum ranges from early infant death to normal adult life with only mild weakness. The International SMA Consortium has subdivided the disease into three types according to age at first symptoms ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
H Johansen-Berg T E J Behrens M D Robson I Drobnjak M F S Rushworth J M Brady S M Smith D J Higham P M Matthews

A fundamental issue in neuroscience is the relation between structure and function. However, gross landmarks do not correspond well to microstructural borders and cytoarchitecture cannot be visualized in a living brain used for functional studies. Here, we used diffusion-weighted and functional MRI to test structure-function relations directly. Distinct neocortical regions were defined as volum...

2000
Umrao R. Monani Daniel D. Coovert Arthur H.M. Burghes

Proximal spinal muscular atrophy (SMA) is the second most common autosomal recessive inherited disorder in humans. It is the most common genetic cause of infant mortality. As yet, there is no cure for this neuromuscular disorder which affects the lower motor neurons and proximal muscles of the limbs and trunk. In the last decade, significant advances have been made in understanding this disease...

Journal: :Folia neuropathologica 2016
Yu Wan Jun Zhang

Spinal muscular atrophy (SMA), an autosomal recessive disease, is characterized by the selective loss of spinal motor neurons due to reduced levels of the survival motor neuron (SMN) protein. The clinical symptoms of SMA are progressive proximal muscle weakness and paralysis. Here we describe a 20-year-old Turkmenistan male with SMA who presented with uncommon pathological reflexes and asymmetr...

2007
Petroc Sumner Parashkev Nachev Peter Morris Andrew M. Peters Stephen R. Jackson Christopher Kennard Masud Husain

Within the medial frontal cortex, the supplementary eye field (SEF), supplementary motor area (SMA), and pre-SMA have been implicated in the control of voluntary action, especially during motor sequences or tasks involving rapid choices between competing response plans. However, the precise roles of these areas remain controversial. Here, we study two extremely rare patients with microlesions o...

Journal: :Cell 1995
Natalie Roy Mani S Mahadevan Michael McLean Gary Shutter Zahra Yaraghi Reza Farahani Stephen Baird Anne Besner-Johnston Charles Lefebvre Xiaolin Kang Maysoon Salih Huguette Aubry Katsuyuki Tamai Xiaoping Guan Panayiotis Ioannou Thomas O Crawford Pieter J de Jong Linda Surh Joh-E Ikeda Robert G Korneluk Alex MacKenzie

The spinal muscular atrophies (SMAs), characterized by spinal cord motor neuron depletion, are among the most common autosomal recessive disorders. One model of SMA pathogenesis invokes an inappropriate persistence of normally occurring motor neuron apoptosis. Consistent with this hypothesis, the novel gene for neuronal apoptosis inhibitory protein (NAIP) has been mapped to the SMA region of ch...

Journal: :Environmental Health Perspectives 2002
Luz Claudio

Background: Epithelial to mesenchymal transition (EMT) in alveolar epithelial cells (AECs) has been widely observed in patients suffering interstitial pulmonary fibrosis. In vitro studies have also demonstrated that AECs could convert into myofibroblasts following exposure to TGF-β1. In this study, we examined whether EMT occurs in bleomycin (BLM) induced pulmonary fibrosis, and the involvement...

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