title: Immune cell variations in patients with hip fracture.
abstract: Hip fracture is an increasing pathology in the patients with increasing age. Immunological response differences may appear between different age groups. The purpose of this study was to investigate the immune response in patients with subcapital hip fracture and the relationship with age. Prospective study of 100 patients with displaced subcapital femoral fracture between 2000 and 2004, divided into three age groups: over 90 years (13), 80-90 (56) and under 80 years (27). The chi(2)-test, analysis of variance and Student's t-test were applied. Correlation coefficient and the Spearman test were used to study linear correlation. The T helper cells decreased with age, this inverse correlation was significant. There was a direct correlation between CD16% and age. IgA, IgG and IgM levels did not show any significant relationship with age in our study. Nevertheless, the IgE levels in peripheral blood showed a significant direct correlation with age. Basophils percentage presented an inverse correlation with age. Age is associated to some immune changes in patients suffering hip fracture.
authors.affiliation: Department of Traumatology, University Clinical Hospital Lozano Blesa, Avda. San Juán Bosco 15, 50009 Zaragoza, Spain. fegarcia@comz.org
authors.forename: Felícito
authors.initials: F
authors.lastname: García-Alvarez
authors.forename: Pedro
authors.initials: P
authors.lastname: González
authors.forename: Marta
authors.initials: M
authors.lastname: Navarro-Zorraquino
authors.forename: Luis
authors.initials: L
authors.lastname: Larrad
authors.forename: Ignacio
authors.initials: I
authors.lastname: García-Alvarez
authors.forename: Cristina
authors.initials: C
authors.lastname: Pastor
authors.forename: Ricardo
authors.initials: R
authors.lastname: Lozano
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001402:B-Lymphocytes / Q000276:immunology*; D017252:CD3 Complex / Q000276:immunology; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology*; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology*; D005260:Female; D005434:Flow Cytometry; D005500:Follow-Up Studies; D006620:Hip Fractures / Q000097:blood / Q000276:immunology* / Q000473:pathology; D006801:Humans; D007111:Immunity, Cellular / Q000276:immunology*; D007136:Immunoglobulins / Q000097:blood; D007694:Killer Cells, Natural / Q000276:immunology*; D018655:Lymphocyte Count; D008297:Male; D008875:Middle Aged; D009391:Nephelometry and Turbidimetry; D011446:Prospective Studies; D016176:T-Lymphocyte Subsets / Q000276:immunology*
chemical_list: D017252:CD3 Complex; D007136:Immunoglobulins