Sarcotubular Myopathy Due to Novel <i>TRIM32</i> Mutation in Association with Multiple Sclerosis

Azerbaijani 28-year-old female showed weakness (MRC (Medical Research Council Scale for Muscle Strength) grade 4 in the proximal part of the upper and MRC grade 2–3 in the lower extremities), difficulty in stair lifting, positive symptom of Hoover’s rising, «waddling gait», decline deep reflexes sym...

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Bibliographic Details
Main Authors: Margarita Marchuk, Tetiana Dovbonos, Halyna Makukh, Orest Semeryak, Yevheniya Sharhorodska
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/11/8/1020
Description
Summary:Azerbaijani 28-year-old female showed weakness (MRC (Medical Research Council Scale for Muscle Strength) grade 4 in the proximal part of the upper and MRC grade 2–3 in the lower extremities), difficulty in stair lifting, positive symptom of Hoover’s rising, «waddling gait», decline deep reflexes symmetrical, lack of surface reflexes, positive Babinsky’s reflex on the right, urinary incontinence during sneezing, prolonged walking and exercise from puberty. Additional methods made it possible to identify minor violations of conduction of the left ventricle, electromyography signs of primary muscular disease with predominant involvement of the proximal muscles of the lower extremities, elevation of serum creatine kinase (746.81 U/l), active foci of demyelination in the left frontal lobe, intrathecal synthesis of oligoclonal IgG bands (type 2) in cerebrospinal fluid, atrophy and fatty degeneration of all muscles of the shins, homozygous Variant of Uncertain Significance (VUS) c.1855C > T (p.Pro619Ser) in <i>TRIM32</i> gene and heterozygous VUS c.2300C > G (p.Thr767Arg) in <i>KIF5A</i>, c.2840G > A (p.Arg947Lys) in <i>MYH2</i>, c.1502G > C (p.Gly501Ala) in <i>POMT1</i> genes. Comparison of the phenotypes of the mutations that have been identified with the clinical picture of the patient suggests that VUS c.1855C > T (p.Pro619Ser) in the <i>TRIM32</i> gene can be pathological. Summarizing, it can be argued that the cause of the identified disorders is a homozygous variant c.1855C > T (p.Pro619Ser) in <i>TRIM32</i> gene that causes LGMDR8 in a patient with MS.
ISSN:2076-3425