71:
47:
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Molenaar, Joery P.; Verhoeven, Jamie I.; Rodenburg, Richard J.; Kamsteeg, Erik J.; Erasmus, Corrie E.; Vicart, Savine; Behin, Anthony; Bassez, Guillaume; Magot, Armelle; Péréon, Yann; Brandom, Barbara W.; Guglielmi, Valeria; Vattemi, Gaetano; Chevessier, Frédéric; Mathieu, Jean (2020-02-01).
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Symptoms include stiffness and sometimes muscle cramping after exercise (pseudo-myotonia) and especially when exposed to cold. The most commonly affected muscles are in the arms, legs, and eyelids. Individuals with Brody myopathy also sometimes experience weakness,
904:
295:
These drugs act by limiting the amount of Ca from being released from the sarcoplasmic reticulum. When a muscle is stimulated, Ca is released from the sarcoplasmic reticulum into the cytoplasm where it binds to a protein called
300:. This event allows the muscle fibers to overlap, causing a contraction. In BD, Ca levels are high in the cytoplasm, which means Ca can readily bind troponin, leading to muscles that are in an extended state of contraction.
439:
Molenaar, Joery P; Verhoeven, Jamie I; Rodenburg, Richard J; Kamsteeg, Erik J; Erasmus, Corrie E; Vicart, Savine; Behin, Anthony; Bassez, Guillaume; Magot, Armelle; Péréon, Yann; Brandom, Barbara W (2020-02-01).
256:, or muscle stiffness that is detected by EMG. Individuals with BD have stiff muscles but normal EMG results (pseudo-myotonia), where no myotonic discharges are detected.
363:
214:, meaning the disease involves mutations in other locations within the genome (although no other loci have been identified in the development of BD as of now).
1004:
288:
Ca release channels in the sarcoplasmic reticulum, while verapamil sequesters Ca in the sarcoplasmic reticulum of muscle cells by functioning as a Ca
1209:
222:
Diagnosis of BD begins with clinical evaluation of individuals for characteristic symptoms of cramping and stiffness of exercised muscles.
1050:
1038:
919:
861:
115:
in the muscles of the limbs and face. Symptoms are heightened by exercise and commonly progress in severity throughout adulthood.
997:
92:
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Brody IA (July 1969). "Muscle contracture induced by exercise. A syndrome attributable to decreased relaxing factor".
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There is no cure for BD, although treatment options are available for reducing the negative symptoms of BD. The drugs
237:
1101:
990:
133:
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930:
796:
560:"Clinical, morphological and genetic characterization of Brody disease: an international study of 40 patients"
442:"Clinical, morphological and genetic characterization of Brody disease: an international study of 40 patients"
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Braz, Luís; Soares-Dos-Reis, Ricardo; Seabra, Mafalda; Silveira, Fernando; Guimarães, Joana (October 2019).
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970:
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where each copy of the affected individual's gene contain a mutation. The gene involved in BD encodes the
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191:, leading to increased levels of cytoplasmic Ca. Increases in cytoplasmic Ca levels interfere with
149:
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pattern of inheritance. These cases have revealed that the cause of the disease likely exhibits
187:
in skeletal muscle. In those with BD, SERCA1 pumps are unable to effectively move Ca across the
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862:"Sliding Filament Theory, Sarcomere, Muscle Contraction, Myosin | Learn Science at Scitable"
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Taylor DJ, Brosnan MJ, Arnold DL, Bore PJ, Styles P, Walton J, Radda GK (November 1988).
676:"Exertional rhabdomyolysis in a patient with calcium adenosine triphosphatase deficiency"
364:"Brody myopathy | Genetic and Rare Diseases Information Center (GARD) – an NCATS Program"
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1124:
749:
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592:
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476:
441:
240:. Biopsies in individuals with BD often show variation in muscle fiber size, atrophied
129:
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1176:
835:
818:
674:
Poels PJ, Wevers RA, Braakhekke JP, Benders AA, Veerkamp JH, Joosten EM (July 1993).
543:
225:
519:
245:
168:
935:
232:, which ranges from normal to slightly elevated in those with BD. Skeletal muscle
176:
819:"Dantrolene--a review of its pharmacology, therapeutic use and new developments"
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329:
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273:
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725:"Ca2+-ATPase deficiency in a patient with an exertional muscle pain syndrome"
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Krause T, Gerbershagen MU, Fiege M, Weisshorn R, Wappler F (April 2004).
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function. BD was first characterized in 1969 by Dr. Irwin A. Brody at
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are used in BD treatment due to their effects on Ca. Dantrolene is a
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104:
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may also be used in the diagnosis of BD to look for mutations in
924:
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103:. This difficulty in relaxation leads to symptoms including
54:
This condition is inherited in an autosomal recessive manner
16:
Genetic disorder; difficulty relaxing muscles after exercise
202:
have been observed. Disease transmission in cases of non-
797:"CALAN - verapamil hydrochloride tablet, film coated"
886:
1169:
1146:
1111:
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1025:
956:
890:
58:
29:
24:
729:Journal of Neurology, Neurosurgery, and Psychiatry
680:Journal of Neurology, Neurosurgery, and Psychiatry
195:, leading to the characteristic symptoms of BD.
649:McKusick, Victor; O'Neill, Marla (2017-12-27).
504:"Brody disease: when myotonia is not myotonia"
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394:
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8:
252:(EMG) can be used in diagnosis to rule out
1005:
991:
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773:"Brody myopathy - Conditions - GTR - NCBI"
69:
21:
834:
748:
699:
591:
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651:"OMIM Entry - # 601003 - BRODY MYOPATHY"
309:
148:Most cases of BD are inherited through
325:"Brody myopathy: MedlinePlus Genetics"
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854:
284:that decreases the symptoms of BD by
198:In some cases of BD, no mutations in
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1051:Alternating hemiplegia of childhood
1039:Alternating hemiplegia of childhood
401:The New England Journal of Medicine
87:, is a rare disorder that affects
14:
97:difficulty relaxing their muscles
836:10.1111/j.1365-2044.2004.03658.x
45:
520:10.1136/practneurol-2019-002224
1210:Genetic diseases and disorders
206:BD have been characterized as
93:Duke University Medical Center
1:
564:Brain: A Journal of Neurology
244:muscle fibers, and increased
228:may be used to measure serum
1090:Acrokeratosis verruciformis
413:10.1056/NEJM196907242810403
95:. Individuals with BD have
1226:
624:Reference, Genetics Home.
1185:
368:rarediseases.info.nih.gov
134:pseudoathletic appearance
53:
44:
936:C536607 C536607, C536607
163:skeletal muscle ATPase,
741:10.1136/jnnp.51.11.1425
630:Genetics Home Reference
185:sarcoplasmic reticulum
1102:Hailey–Hailey disease
692:10.1136/jnnp.56.7.823
212:genetic heterogeneity
1160:Kufor–Rakeb syndrome
777:www.ncbi.nlm.nih.gov
576:10.1093/brain/awz410
459:10.1093/brain/awz410
236:are used to examine
138:hypertrophic muscles
508:Practical Neurology
150:autosomal recessive
957:External resources
208:autosomal dominant
193:muscle contraction
119:Signs and symptoms
1197:
1196:
980:
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19:Medical condition
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1177:Osteopetrosis B1
1137:Wilson's disease
1086:Darier's disease
1014:Genetic disorder
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370:. Archived from
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250:Electromyography
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735:(11): 1425–33.
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258:Genetic testing
230:creatine kinase
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89:skeletal muscle
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1125:Menkes disease
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1074:Brody myopathy
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891:Classification
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883:External links
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866:www.nature.com
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570:(2): 452–466.
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514:(5): 417–419.
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452:(2): 452–466.
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282:muscle relaxer
269:
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179:ions from the
167:. SERCA1 is a
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132:. Some have a
130:rhabdomyolysis
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83:, also called
81:Brody myopathy
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626:"ATP2A1 gene"
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374:on 2018-09-07
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34:Brody disease
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869:. Retrieved
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780:. Retrieved
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686:(7): 823–6.
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658:. Retrieved
655:www.omim.org
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633:. Retrieved
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376:. Retrieved
372:the original
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169:protein pump
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823:Anaesthesia
330:MedlinePlus
242:fast-twitch
161:fast-twitch
30:Other names
942:DiseasesDB
871:2018-09-25
782:2018-09-25
660:2018-09-25
635:2018-09-07
378:2018-09-07
336:2022-07-27
304:References
286:inhibiting
274:dantrolene
171:that uses
113:discomfort
1188:see also
1020:disorders
584:1460-2156
544:122401141
528:1474-7766
468:0006-8950
278:verapamil
268:Treatment
218:Diagnosis
109:stiffness
65:Neurology
60:Specialty
1204:Category
966:Orphanet
845:15023108
602:32040565
536:30996034
486:32040565
298:troponin
254:myotonia
248:number.
234:biopsies
189:membrane
175:to pump
101:exercise
1155:ATP13A2
806:. 2009.
759:2976810
750:1032814
710:8331362
701:1015068
593:7009512
477:7009512
421:4239835
183:to the
181:cytosol
126:myalgia
1190:ATPase
1097:ATP2C1
1081:ATP2A2
1069:ATP2A1
1046:ATP1A3
1034:ATP1A2
1018:ATPase
925:601003
843:
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262:ATP2A1
246:nuclei
204:ATP2A1
200:ATP2A1
165:SERCA1
155:ATP2A1
128:, and
111:, and
105:cramps
99:after
67:
1170:Other
1147:ATP13
1132:ATP7B
1120:ATP7A
971:53347
947:35041
914:G71.8
800:(PDF)
540:S2CID
446:Brain
144:Cause
136:with
1112:ATP7
1061:ATP2
1026:ATP1
931:MeSH
920:OMIM
841:PMID
755:PMID
706:PMID
598:PMID
580:ISSN
532:PMID
524:ISSN
482:PMID
464:ISSN
417:PMID
276:and
905:ICD
831:doi
804:FDA
745:PMC
737:doi
696:PMC
688:doi
588:PMC
572:doi
568:143
516:doi
472:PMC
454:doi
450:143
409:doi
405:281
173:ATP
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387:^
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312:^
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264:.
177:Ca
140:.
107:,
38:BD
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1158:(
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