Laboratory Medicine ›› 2023, Vol. 38 ›› Issue (9): 855-859.DOI: 10.3969/j.issn.1673-8640.2023.09.008

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Number and activity of peripheral blood eosinophils in obese people

CHENG Xu1, YANG Cunqing1, PANG Bo1, GU Chun1, HOU Xueyun1, FEI Jiaxin1, WU Min2, LI Jun2, LIU Guijian1()   

  1. 1. Department of Clinical Laboratory,Guang' anmen Hospital,China Academy of Chinese Medical Sciences,Beijing 100053,China
    2. Department of Cardiovascular,Guang' anmen Hospital,China Academy of Chinese Medical Sciences,Beijing 100053,China
  • Received:2022-08-17 Revised:2023-02-08 Online:2023-09-30 Published:2023-11-29

Abstract:

Objective To analyze the number and activity of peripheral blood eosinophils in obese people. Methods A total of 41 subjects >40 years old at Guang' anmen Hospital from June to September 2021 were enrolled. According to body mass index(BMI),the subjects were classified into obese group(20 cases,BMI≥30 kg/m2) and control group(21 cases,18.5 kg/m2<BMI<28 kg/m2). The general information were collected. The expressions of CD62L and CD63 in peripheral blood eosinophils were determined by flow cytometry. The level of serum eosinophil cationic protein(ECP) was determined by enzyme-linked immunosorbent assay(ELISA). The number and percentage of peripheral blood eosinophils and the expressions of CD62L,CD63 and ECP were compared between the 2 groups. Results The number and percentage of peripheral blood eosinophils and neutrophils and serum ECP levels in obese group were higher than those in control group(P>0.05). CD62L was lower than that in control group(P<0.05),and CD63 was higher than that in control group(P<0.01). CD62L was negatively correlated with BMI(r=-0.332,P=0.034). Conclusions Obesity might be related to the increase of peripheral blood eosinophil activity.

Key words: Eosinophil, Eosinophil cationic protein, Obesity

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