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1.
Article in Russian | MEDLINE | ID: mdl-20517216

ABSTRACT

We present the results of the molecular genetic study of 26 patients, aged from 12 to 60 years, from 24 unrelated families with limb girdle-muscular dystrophy (LGMD) type 2A. The disease duration varied from 6 months to 30 years. The diagnosis of LGMD 2capital A, Cyrillic was confirmed by molecular genetic methods basing on the presence of a CAPN3 mutation in homozygous, compound-heterozygous and heterozygous state. The Leyden-Moebius variant that is characterized by the primary affection of muscles of pelvic girdle and shin with the gradual progression of the pathological process in shoulder girdle muscles was the most frequent in the Russian population. Tip-toe walking or difficulties in walking upstairs and running were the first symptoms reported by patients. In contrast to criteria of the European Neuromuscular Center, the characteristic symptoms of the disease were early contractures of ankle joints and pseudohypertrophy of gastrocnemius muscles. The major c.550delA mutation in the CAPN3 gene was identified in 70% of Russian patients.


Subject(s)
Calpain/genetics , Muscle Proteins/genetics , Muscular Dystrophies, Limb-Girdle/genetics , Muscular Dystrophies, Limb-Girdle/physiopathology , Adolescent , Adult , Child , Female , Humans , Male , Middle Aged , Muscular Dystrophies, Limb-Girdle/diagnosis , Mutation , Russia , Sequence Deletion , Young Adult
2.
Zh Nevrol Psikhiatr Im S S Korsakova ; 110(5 Pt 1): 13-6, 2010.
Article in Russian | MEDLINE | ID: mdl-21322820

ABSTRACT

The first in the Russian Federation clinical cases of patients with autosomal-recessive type of hereditary motor and sensory neuropathy, type 4A, (HMSN 4A) are presented. In all cases, the diagnosis has been verified using molecular-genetic methods (DNA diagnostics). An analysis of features of clinical manifestations was performed in patients, aged from 5 to 34 years, with different disease duration (from 3-to 29 years). Criteria of selection of patients for DNA diagnostics for searching mutations in the GDAP1 gene are specified.


Subject(s)
Hereditary Sensory and Motor Neuropathy/diagnosis , Hereditary Sensory and Motor Neuropathy/genetics , Nerve Tissue Proteins/genetics , Adolescent , Adult , Amino Acid Substitution/genetics , Child , Child, Preschool , DNA/analysis , DNA/genetics , Female , Hereditary Sensory and Motor Neuropathy/physiopathology , Humans , Leucine/genetics , Male , Mutation , Phenylalanine/genetics , Russia , Young Adult
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