human 46 peripheral blood mononuclear cell controlled study 38 human cell 38 Humans 36 female 30 Female 24 article 24 gamma interferon 24 priority journal 24 Article 22 protein expression 20 cytokine production 18 flow cytometry 16 immune response 16 immunology 16 in vitro study 16 interleukin 10 16 CD4+ T lymphocyte 14 Male 14 Western blotting 14 cell culture 14 male 14 Mycobacterium tuberculosis 12 Pregnancy 12 Tuberculosis 12 Vasoactive Intestinal Peptide 12 adult 12 inflammation 12 metabolism 12