The epidemiology and clinical features of selective immunoglobulin M deficiency: A single-center study in China.

Journal of Clinical Laboratory Analysis
Jinyao NiJinlin Liu

Abstract

Selective immunoglobulin M deficiency (SIgMD) is a rare primary immunodeficiency that is frequently reported in Western countries. However, large epidemiological and clinical studies of SIgMD in China are still lacking. Herein, we describe a cohort of SIgMD subjects in a large tertiary university hospital in China. A cross-sectional study included 139 668 participants at First Affiliated Hospital of Wenzhou Medical University from January 2014 to October 2018 was conducted. Individuals with a serum IgM level less than 0.3 g/L with normal levels of serum IgA and IgG were defined as having SIgMD. A total of 63 subjects met the criteria for SIgMD(63/139668, 0.045%), with a male-to-female ratio of 0.85, aged from 19 to 99 years. The most common clinical manifestation was autoimmune disorders (38/63, 60.32%), while the second most common manifestation was infections (21/63, 33.33%). Neither allergies nor tumors were found among these 63 SIgMD subjects. Most importantly, there were 30 patients with systemic lupus erythematosus among these 63 SIgMD subjects, accounting for 47.62% of all SIgMD subjects. To our knowledge, we describe here the first large single-center cohort of adult patients affected by SIgMD in China. The most common ...Continue Reading

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Jan 29, 2021·Clinical Case Reports·Marziyeh Heidarzadeh AraniHossein Motedayyen

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