title: Proinflammatory, anti-inflammatory cytokines and adiponkines in students with central obesity.
abstract: Several studies have investigated the correlation between central obesity and inflammatory cytokines and the anti-inflammatory cytokine adiponectin. But, the correlation between central obesity and the anti-inflammatory cytokines IL-4, IL-5 has not been studied yet. Thus, we aimed to study the IL-4 and IL-5 correlation to central obesity in adolescent Egyptian girls among proinflammatory and anti-inflammatory cytokines. The study was carried out on 86 obese adolescent girls (BMI>95 percentile) divided into two groups according to central obesity. The group I with waist to hip ratio <0.8 as a control and group II with waist to hip ratio >0.8 (central obesity). There was a significant increase in TNF-alpha (p<0.0001), and IL-1β (p<0.0001), as proinflammatory cytokines in group II, as compared to their corresponding group I. Group II showed a significant increase in the anti-inflammatory cytokines IL-4 and IL-5 than group I at (p<0.0001) and (p<0.0005) respectively. In addition there was a significant decrease in the anti-inflammatory adiponectin and an increase in the inflammatory leptin levels in group II at (p<0.0001) and (p<0.0001) respectively in comparison to group I. A high positive correlation has been observed between waist to hip ratio, leptin, TNF-α, IL-1-β, IL-4 and IL-5 at (r=0.331, p<0.03), (r=0.559, p<0.001), (r=0.435, p<0.004), (r=0.509, p<0.001), (r=0.550, p<0.0015), in group II respectively and a high negative one with adiponectin at (r=-0.410, p<0.0001). We concluded that central obesity lowers adiponectin plasma level through increasing proinflammatory adipokines such as TNF-α, IL-1β, leptin. Further studies are needed to explore the positive correlation we found between central obesity and the anti-inflammatory cytokines IL-4 and IL-5 known to be associated with bronchial asthma.
authors.affiliation: Department of Medical Physiology, National Research Centre, Cairo, Egypt. amany.elwakkad@yahoo.com
authors.forename: Amany
authors.initials: A
authors.lastname: El-Wakkad
authors.forename: Nayera El-Morsi
authors.initials: Nel-M
authors.lastname: Hassan
authors.forename: Hiba
authors.initials: H
authors.lastname: Sibaii
authors.forename: Salwa Refat
authors.initials: SR
authors.lastname: El-Zayat
mesh_terms: D052242:Adiponectin / Q000097:blood*; D000293:Adolescent; D000893:Anti-Inflammatory Agents / Q000097:blood*; D016207:Cytokines / Q000097:blood*; D005260:Female; D006801:Humans; D018836:Inflammation Mediators / Q000097:blood*; D053583:Interleukin-1beta / Q000097:blood; D015847:Interleukin-4 / Q000097:blood; D015848:Interleukin-5 / Q000097:blood; D020738:Leptin / Q000097:blood*; D056128:Obesity, Abdominal / Q000097:blood*; D013334:Students; D049629:Waist-Hip Ratio
chemical_list: D052242:Adiponectin; D000893:Anti-Inflammatory Agents; D016207:Cytokines; D018836:Inflammation Mediators; D053583:Interleukin-1beta; D015848:Interleukin-5; D020738:Leptin; D015847:Interleukin-4