[pubmed] Relationship between Low and High Anti-acetylcholine Receptor Antibody Titers and Clinical Severity in Myasthen

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[pubmed] Relationship between Low and High Anti-acetylcholine Receptor Antibody Titers and Clinical Severity in Myasthen

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J Coll Physicians Surg Pak. 2021 Aug;31(8):965-968. doi: 10.29271/jcpsp.2021.08.965.

ABSTRACT

OBJECTIVE: To determine the frequency of low and high anti-AChR (acetylcholine receptor) antibody titers and to evaluate their relationship with clinical severity in myasthenia gravis.

STUDY DESIGN: Cross-sectional, observational study.

PLACE AND DURATION OF STUDY: Department of Neurology, King Edward Medical University/Mayo Hospital, Lahore from April 2017 to March 2018.

METHODOLOGY: Fifty-six seropositive patients, aged between 18-75 years, were included. A blood sample was obtained from each patient to assess for the anti-AChR antibody titers by enzyme-linked immunosorbent assay (ELISA) technique and classified as low (0.4-50 nmol/L). Clinical severity was graded according to the Osserman's classification.

RESULTS: Out of 56 patients, 51.79% (n=29) were males and 48.21% (n=27) were females, and mean age was 32.73 +8.48 years. Mean anti-AChR antibody titer was found 40.45 + 13.54; 60.71% (n=34) had low and 39.29% (n=22) had high titers. Upon grading the severity, 1.79% (n=1) had grade I, 25% (n=14) had grade IIa, 26.79% (n=15) had grade IIb, 37.5% (n=21) had grade III, and 8.93% (n=5) had grade IV. These grades were significantly associated with high/low titers of anti-AChR antibody (p

Source: https://pubmed.ncbi.nlm.nih.gov/3432071 ... 5&v=2.14.5
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