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Sex Differences in Spontaneous Degranulation Activity of Intrahepatic Natural Killer Cells during Chronic Hepatitis B: Association with Estradiol Levels

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Macek Jilkova, Zuzana | Decaens, Thomas | Marlu, Alice | Marche, Hélène | Jouvin-Marche, Evelyne | Marche, Patrice, N

Edité par CCSD ; Hindawi Publishing Corporation -

International audience. Major sex differences are observed in the prevalence, intensity, and severity of hepatitis B virus (HBV) infection. Here, we investigated degranulation activity of circulating and intrahepatic natural killer (NK) cells from HBV and HCV chronically infected patients before any treatment (n = 125). The frequency of CD107 + NK cells in the female liver was significantly higher compared to that in males during chronic HBV infection (p = 0 002) and correlated with the plasma levels of estradiol (correlation coefficient r = 0 634; p < 0 0001). Our results clearly show sex differences in degranulation activity of intrahepatic NK cells of HBV-infected patients. This probably contributes to the ability of females to better deal with HBV disease.

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