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Extractions: path = "http://www.enhancedlifesciences.com/"; Home About Us Products Disorders ... Cart Hereditary Spastic Paraplegia (HSP) is a term used to describe a group of rare, inherited neurological disorders along the motor neuron disease continuum whose primary symptom is progressive spasticity (stiffness) and weakness of the leg and hip muscles. There are at least twenty different types of HSP; however, genetic causes are known for only eleven of them. It is estimated that approximately 20,000 individuals are affected by HSP in the U.S. Other names for this disorder include Familial Spastic Paraparesis (or Paraplegia), Strümpell-Lorrain Disease, Spastic Paraplegia, Hereditary Charcot-Disease, Spastic Spinal Paralysis, Diplegia Spinalis Progressiva, French Settlement Disease, Troyer syndrome and Silver syndrome. In the late 1800's, a neurologist in Heidelberg, Germany named A. Strümpell first described HSP. He observed two brothers and their father, who had gait disorders and spasticity in their legs. After the death of the two brothers, Strümpell was able to show, through autopsy, the degeneration of the nerve fibers leading through the spinal cord. HSP was originally named after Strümpell. HSP is caused by degeneration of the upper motor neurons in the brain and spinal cord. These neurons control voluntary movement; and the cell bodies of these neurons are located in the motor cortex area of the brain. They have long, hair-like processes called axons that travel to the brainstem and down the spinal cord. The axons relay messages to lower motor neurons that are located all along the brainstem and spinal cord. Lower motor neurons then carry the messages out to the muscles. This results in a progressive increase in muscle spasticity and weakness. The upper body may be minimally affected is some cases, resulting in problems with arm or speech and swallowing muscles.
Extractions: @import "/ng/style.css"; NATURE.COM NEWS@NATURE.COM NATUREJOBS NATUREEVENTS ... Help E-MAIL: PASSWORD: Save password Forgotten password? SEARCH JOURNAL Advanced search Journal home Archive Table of Contents ... For librarians NPG Resources Nature Nature Cell Biology Nature Medicine Nature Reviews Genetics ... Browse all publications Brief Communication Nature Genetics Department of Medical Genetics, St. George's Hospital Medical School, University of London, Cranmer Terrace, London SW17 0RE, UK. Correspondence should be addressed to Andrew H. Crosby firstname.lastname@example.org Troyer syndrome (TRS) is an autosomal recessive complicated hereditary spastic paraplegia (HSP) that occurs with high frequency in the Old Order Amish. We report mapping of the TRS locus to chromosome 13q12.3 and identify a frameshift mutation in , encoding spartin. Comparative sequence analysis indicates that spartin shares similarity with molecules involved in endosomal trafficking and with spastin, a molecule implicated in microtubule interaction that is commonly mutated in HSP.
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SPF - HSP General Information Information about the disorder known as hereditary spastic paraplegia, providedby the Spastic Paraplegia Foundation (SPF). The SPF is responsible for the http://www.sp-foundation.org/hsp.htm
Extractions: How severe will my symptoms get? ... Where can I get more information? What is HSP? HSP is a term for a group of rare, inherited neurologic disorders along the motor neuron disease continuum. Their primary symptom is progressive spasticity (stiffness) and weakness of the leg and hip muscles. There are at least twenty types of HSP and the genetic causes are known for eleven. The disorder is estimated to affect some 20,000 people in the U.S. There are many different names used for HSP. The most common are Hereditary Spastic Paraplegia (or Paraparesis), Familial Spastic Paraparesis (or Paraplegia) and Strümpell-Lorrain Disease. Others are Spastic Paraplegia, Hereditary Charcot-Disease, Spastic Spinal Paralysis, Diplegia Spinalis Progressiva, French Settlement Disease, Troyer syndrome and Silver syndrome.
Extractions: S PASTIC P ARAPLEGIA WITH P ERIPHERAL P OLYNEUROPATHY: A R EPORT OF T HREE C ASES Saied Khosrawi MD Mostafa Shirzadi MD, Farshad Ghadiri MD Correspondence: S. Khosrawi MD, Department of Neurology, Azzahra Hospital, Sofeh St., Isfahan, Iran. P.O. Box: 925, Fax: +98-311-6684510, E-mail: email@example.com Spastic paraplegia is manifested by progressive spasticity and weakness of the legs and is one of the presenting signs of upper motor neuron disorders. Several diseases present solely with spastic gait disorders, but spastic paraplegia with severe polyneuropathy is an uncommon condition. We report three cases of spastic paraplegia from childhood with severe distal atrophy due to profound polyneuropathy; two of them had a hereditary and one sporadic (nonhereditary) background. In the present report, positive clinical and paraclinical findings with the possible differential diagnosis have been discussed. Archives of Iranian Medicine, Volume 6, Number 4, Keywords hereditary complicated neurophysiology polyneuropathy spastic paraplegia sporadic
Extractions: Cell Press Hereditary spastic paraplegia (HSP) is a devastating motor disorder that relegates patients to walkers and, in more severe cases, wheelchairs. In work reported this week, researchers have taken our understanding of HSP to a new level with the development of an animal model for the disease. The findings suggest that, in many cases, HSP may result from the improper regulation of microtubules, which make up a large part of a nerve cell's scaffolding. This could explain why the specific nerve cells that are preferentially affected in HSP those that send signals from the brain's cerebral cortex to the motor neurons that initiate muscle contractions show a progressive dysfunction that culminates in degeneration. Genetic anomalies in more than 20 different genes have been associated with HSP, but mutations in one gene in particular, SPG4, are responsible for more than 40% of all cases. SPG4 encodes a protein called spastin, which previous research has shown to destabilize microtubules, the tiny hollow protein tubes that originate near the nucleus and extend into the long processes of neurons. Through their interactions with other proteins, microtubules essentially represent the dynamic scaffolding of the nerve cell. In neurons, microtubules' responsibilities include carrying cellular components to distant regions of the cell, regulating the growth of neuronal branches, and providing a substrate for important protein interactions. Microtubules grow and shrink, and their stability at a given time and place can be regulated by other proteins to facilitate specific cellular functions.
Extractions: News and Events - National Institute of Neurological Disorders and Stroke (NINDS) Skip menus Home About NINDS Disorders Funding ... Jobs and Training You are here: Home News and Events Proceedings The nation's leading supporter of biomedical research on disorders of the brain and nervous system. News Press Releases News Articles Funding News Events Calendar of Events Proceedings - you are in this section Online Events Congressional Testimony NINDS Search (search help) Contact Us My Privacy NINDS is part of the National Institutes of Health The First International Symposium for Hereditary Spastic Paraplegia Get Web page suited for printing
Extractions: Home Search Browse Resources ... About Nuclear Magnetic Spectroscopy Imaging to Evaluate Primary Lateral Sclerosis, Hereditary Spastic Paraplegia and Amyotrophic Lateral Sclerosis This study has been completed. Sponsored by: National Institute of Neurological Disorders and Stroke (NINDS) Information provided by: National Institutes of Health Clinical Center (CC) ClinicalTrials.gov Identifier: Purpose This study will use a magnetic resonance imaging technique called nuclear magnetic spectroscopy (H-MRS) to define the pathology and progression of primary lateral sclerosis, hereditary spastic paraplegia and amyotrophic lateral sclerosis and assess the usefulness of this technique in evaluating patients' response to therapy. H-MRS will be used to examine metabolic changes in the parts of the brain and spinal cord (motor cortex and corticospinal tract) involved in movement. Normal volunteers and patients with primary lateral sclerosis, hereditary spastic paraplegia or amyotrophic lateral sclerosis between 21 and 65 years of age may be eligible for this study. Participants will have up to five H-MRS studies, including baseline and follow-up tests. For this procedure, the subject lies on a stretcher that is moved into a strong magnetic field. Earplugs are worn to muffle the loud knocking noise that occurs during switching of radio frequencies. The subject will be asked to lie still during each scan, for 1 to 8 minutes at a time. Total scanning time varies from 20 minutes to 2 hours, with most examinations lasting between 45 and 90 minutes. Communication with the medical staff is possible at all times during the scan.
HighWire Press Citation Map hereditary spastic paraplegia advances in genetic research. Hereditary SpasticParaplegia Working group JK Fink, T HeimanPatterson, T Bird, F Cambi, http://highwire.stanford.edu:4141/cgi/citemap?id=jmedgenet;36/10/797
Extractions: UAE University Faculty of Medicine and Health Sciences Dept. of Paediatrics, P.O. Box 1766, Al Ain, UAE Sultan Qaboos University, Department of Biochemistry, P.O. Box 35, Al Khoud, Muscat, Sultanate of Oman Hereditary spastic paraplegia (HSP) is a group of disorders that cause progressive spasticity of the lower limbs and are characterized by clinical and genetic heterogeneity. Five loci (8p12-q13, 14q, 16q24.3, 3q27-28, 15q13-15) for the autosomal recessive HSP (ARHSP) have been mapped and 2 genes have been identified. Several autosomal recessive HSP families with agenesis of corpus callosum and mental deterioration have been reported in the Japanese population. Most of these families were linked to chromosome 15q 13-12. We report on a large multiply consanguineous Omani family where 6 children in 2 sibships are affected with ARHSP. All presented in first 2 years of life with delayed walking, spasticity which is more pronounced in the lower limbs and developmental delay. There were no other associated abnormalities. Magnetic Resonance Imaging of the brain (MRI) in all showed agenesis/hypoplasia of corpus callosum. Linkage analysis to the known recessive loci 8q, 16q and 15q13-15 were excluded in this family indicating further genetic heterogeneity of the ARHSP with agenesis of corpus callosum.
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Extractions: Vol Page [Advanced] This Article Full Text Submit a response Alert me when this article is cited Alert me when eLetters are posted ... Citation Map Services Email this link to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal ... Cited by other online articles PubMed PubMed Citation Articles by REID, E Articles by RUBINSZTEIN, J S Related Collections Genetics J Med Genet 797-798 ( October ) The first 150 words of the full text of this article appear below. E DITOR The hereditary spastic paraplegias are characterised by progressive spasticity, predominantly affecting the lower limbs. They have been divided into "pure" or complicated forms.
J Med Genet -- Sign In Page The term hereditary spastic paraplegia (HSP) is used to describe a group of SPG20 is mutated in Troyer syndrome, an hereditary spastic paraplegia. http://jmg.bmjjournals.com/cgi/content/full/42/1/80
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