PMID- 15351939 OWN - NLM STAT- MEDLINE DCOM- 20050418 LR - 20080805 IS - 0494-1373 (Print) IS - 0494-1373 (Linking) VI - 52 IP - 3 DP - 2004 TI - [Body mass index and serum and sputum TNF-alpha levels relation in asthma and COPD]. PG - 256-61 AB - Previous studies have revealed the relationship between asthma with obesity and low body mass index (BMI) with chronic obstructive pulmonary disease (COPD). Tumor necrosis factor-alpha (TNF-alpha) is thought to be related with low BMI. The aim of this study was to determine sputum and serum TNF-alpha levels in patients with COPD and asthma and to evaluate whether these parameters had correlation with BMI. Thirty patients with moderate persistent asthma and 26 patients with moderate -severe COPD were included. After BMI values were calculated, sputum was induced by inhalation of hypertonic saline solution and blood was drawn for analysis of serum TNF-alpha levels. There were significant differences in age, serum and sputum TNF-alpha levels between asthma and COPD subjects (Sputum TNF-alpha: asthma; 513 +/- 151 pg/mL-COPD: 333 +/- 126 pg/mL, p< 0.001; Serum TNF-alpha: asthma; 332 +/- 114 pg/mL-COPD: 197 +/- 81 pg/mL, p< 0.001), however there was no difference in BMI (asthma; 28 +/- 5.7-COPD; 26.6 +/- 12.9, p= 0.1). Patients were divided into four categories according to their BMI values as underweight, normal, overweight and obese. In asthmatics; there were 12 (40%) obese and 11 (36%) overweight patients while 9 (34%) of COPD patients were underweight. No significant difference was observed among these four groups according to serum-sputum TNF-alpha and smoking history both in asthmatics and in COPD subjects. While there was no correlation between BMI and serum-sputum TNF-alpha levels, BMI was significantly correlated with both smoking history and duration of disease in COPD patients. As a result, most of the asthmatic patients were described as overweight and obese while no such variation was noted in the COPD patients. The induced sputum TNF-alpha levels has no additional benefit on serum TNF-alpha levels which has already known to be associated with BMI. FAU - Basyigit, Ilknur AU - Basyigit I AD - Pulmonary Diseases, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey. dr_basyigit@yahoo.com FAU - Yildiz, Fusun AU - Yildiz F FAU - Yildirim, Elif AU - Yildirim E FAU - Boyaci, Hasim AU - Boyaci H FAU - Ilgazli, Ahmet AU - Ilgazli A LA - tur PT - English Abstract PT - Journal Article TT - Astimli ve KOAH'li hastalarda vucut kitle indeksi ile balgam ve serum TNF-alpha duzeyi arasindaki iliski. PL - Turkey TA - Tuberk Toraks JT - Tuberkuloz ve toraks JID - 0417364 RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Aged MH - Asthma/*epidemiology/etiology/pathology MH - Body Mass Index MH - Female MH - Humans MH - Male MH - Middle Aged MH - Pulmonary Disease, Chronic Obstructive/*epidemiology/etiology/pathology MH - Severity of Illness Index MH - Sputum/metabolism MH - Tumor Necrosis Factor-alpha/*metabolism MH - Turkey/epidemiology EDAT- 2004/09/08 05:00 MHDA- 2005/04/19 09:00 CRDT- 2004/09/08 05:00 PHST- 2004/09/08 05:00 [pubmed] PHST- 2005/04/19 09:00 [medline] PHST- 2004/09/08 05:00 [entrez] PST - ppublish SO - Tuberk Toraks. 2004;52(3):256-61.