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Gur M, Ben-David Y, Hanna M, Ilivitzki A, Weichhendler A, Bar-Yoseph R, Toukan Y, Masarweh K, Bentur L. The Association between IgG and Disease Severity Parameters in CF Patients. J Clin Med 2021; 10:jcm10153316. [PMID: 34362100 PMCID: PMC8347508 DOI: 10.3390/jcm10153316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/22/2021] [Accepted: 07/27/2021] [Indexed: 11/18/2022] Open
Abstract
Assessing disease severity in patients with cystic fibrosis (CF) is essential when directing therapies. Serum immunoglobulin G (IgG) levels increase with disease severity. Lung clearance index (LCI) is recognized as an outcome measure for CF clinical trials. Our aim was to evaluate the correlations between IgG and disease severity markers. This was a single-center retrospective study, evaluating association between IgG and markers of severity in CF patients (including clinical characteristics, lung spirometry, LCI, clinical scores and computed tomography (CT) scores) during stable conditions. There were 69 patients, age 20.5 ± 11.6 years. Nineteen (27.5%) patients had elevated IgG. IgG correlated positively with LCI (r = 0.342, p = 0.005). IgG was higher in pancreatic insufficient (PI) and patients with liver disease (1504.3 ± 625.5 vs. 1229 ± 276.1 mg/dL in PI vs. PS, p = 0.023, and 1702.6 ± 720.3 vs. 1256.2 ± 345.5 mg/dL with vs. without liver disease, p = 0.001, respectively). IgG also correlated positively with CRP, CT score, and days with antibiotics in the previous year (r = 0.38, p = 0.003; r = 0.435, p = 0.001; and r = 0.361, p = 0.002, respectively), and negatively with FEV1% and SK score (r = −0.527, p < 0.001 and r = −0.613, p < 0.001, respectively). IgG correlated with clinical parameters, pulmonary functions, and imaging. However, this is still an auxiliary test, complementing other tests, including lung function and imaging tests. Larger multi-center longitudinal studies are warranted.
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Affiliation(s)
- Michal Gur
- Pediatric Pulmonary Institute and CF Center, Rappaport Children’s Hospital, Rambam Health Care Campus, Haifa 3109601, Israel; (M.G.); (Y.B.-D.); (M.H.); (A.W.); (R.B.-Y.); (Y.T.); (K.M.)
- Rappaport Faculty of Medicine, Technion—Israel Institute of Technology, Efron St 1, Haifa 3525422, Israel;
| | - Yael Ben-David
- Pediatric Pulmonary Institute and CF Center, Rappaport Children’s Hospital, Rambam Health Care Campus, Haifa 3109601, Israel; (M.G.); (Y.B.-D.); (M.H.); (A.W.); (R.B.-Y.); (Y.T.); (K.M.)
| | - Moneera Hanna
- Pediatric Pulmonary Institute and CF Center, Rappaport Children’s Hospital, Rambam Health Care Campus, Haifa 3109601, Israel; (M.G.); (Y.B.-D.); (M.H.); (A.W.); (R.B.-Y.); (Y.T.); (K.M.)
| | - Anat Ilivitzki
- Rappaport Faculty of Medicine, Technion—Israel Institute of Technology, Efron St 1, Haifa 3525422, Israel;
- Pediatric Radiology Unit, Ruth Rappaport Children’s Hospital, Rambam Health Care Campus, Haifa 3109601, Israel
| | - Adi Weichhendler
- Pediatric Pulmonary Institute and CF Center, Rappaport Children’s Hospital, Rambam Health Care Campus, Haifa 3109601, Israel; (M.G.); (Y.B.-D.); (M.H.); (A.W.); (R.B.-Y.); (Y.T.); (K.M.)
| | - Ronen Bar-Yoseph
- Pediatric Pulmonary Institute and CF Center, Rappaport Children’s Hospital, Rambam Health Care Campus, Haifa 3109601, Israel; (M.G.); (Y.B.-D.); (M.H.); (A.W.); (R.B.-Y.); (Y.T.); (K.M.)
- Rappaport Faculty of Medicine, Technion—Israel Institute of Technology, Efron St 1, Haifa 3525422, Israel;
| | - Yazeed Toukan
- Pediatric Pulmonary Institute and CF Center, Rappaport Children’s Hospital, Rambam Health Care Campus, Haifa 3109601, Israel; (M.G.); (Y.B.-D.); (M.H.); (A.W.); (R.B.-Y.); (Y.T.); (K.M.)
- Rappaport Faculty of Medicine, Technion—Israel Institute of Technology, Efron St 1, Haifa 3525422, Israel;
| | - Kamal Masarweh
- Pediatric Pulmonary Institute and CF Center, Rappaport Children’s Hospital, Rambam Health Care Campus, Haifa 3109601, Israel; (M.G.); (Y.B.-D.); (M.H.); (A.W.); (R.B.-Y.); (Y.T.); (K.M.)
| | - Lea Bentur
- Pediatric Pulmonary Institute and CF Center, Rappaport Children’s Hospital, Rambam Health Care Campus, Haifa 3109601, Israel; (M.G.); (Y.B.-D.); (M.H.); (A.W.); (R.B.-Y.); (Y.T.); (K.M.)
- Rappaport Faculty of Medicine, Technion—Israel Institute of Technology, Efron St 1, Haifa 3525422, Israel;
- Correspondence: ; Tel.: +972-4-7774360; Fax: +972-4-7774395
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