scholarly journals Polymorphisms in the human surfactant protein-D (SFTPD) gene: strong evidence that serum levels of surfactant protein-D (SP-D) are genetically influenced

2005 ◽  
Vol 57 (1-2) ◽  
pp. 1-7 ◽  
Author(s):  
Kathrin Heidinger ◽  
Inke R. König ◽  
Anette Bohnert ◽  
Anja Kleinsteiber ◽  
Anne Hilgendorff ◽  
...  
Keyword(s):  
Strong Evidence ◽  
Serum Levels ◽  
Surfactant Protein ◽  
Surfactant Protein D

scholarly journals Serum surfactant protein D in COVID-19 is elevated and correlated with disease severity

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ming Tong ◽  
Ying Xiong ◽  
Chen Zhu ◽  
Hong Xu ◽  
Qing Zheng ◽  
...  
Keyword(s):  
Acute Phase ◽  
Early Stage ◽  
Recovery Period ◽  
Serum Levels ◽  
Surfactant Protein ◽  
Mean Value ◽  
Multivariate Logistic Regression Model ◽  
Surfactant Protein D ◽  
Multivariate Logistic Regression ◽  
Roc Curve Analysis

Abstract Background The serum surfactant protein D (SP-D) level is suggested to be a useful biomarker for acute lung injuries and acute respiratory distress syndrome. Whether the serum SP-D level could identify the severity of coronavirus disease 2019 (COVID-19) in the early stage has not been elucidated. Methods We performed an observational study on 39 laboratory-confirmed COVID-19 patients from The Fourth People’s Hospital of Yiyang, Hunan, China. Receiver operating characteristic (ROC) curve analysis, correlation analysis, and multivariate logistic regression model analysis were performed. Results In the acute phase, the serum levels of SP-D were elevated significantly in severe COVID-19 patients than in mild cases (mean value ± standard deviation (SD), 449.7 ± 125.8 vs 245.9 ± 90.0 ng/mL, P<0.001), while the serum levels of SP-D in the recovery period were decreased dramatically than that in the acute phase (mean value ± SD, 129.5 ± 51.7 vs 292.9 ± 130.7 ng/ml, P<0.001), and so were for the stratified patients. The chest CT imaging scores were considerably higher in the severe group compared with those in the mild group (median value, 10.0 vs 9.0, P = 0.011), while markedly lower in the recovery period than those in the acute phase (median value, 2.0 vs 9.0, P<0.001), and so were for the stratified patients. ROC curve analysis revealed that areas under the curve of lymphocyte counts (LYM), C-reaction protein (CRP), erythrocyte sedimentation rate (ESR), interleukin-6 (IL-6), and SP-D for severe COVID-19 were 0.719, 0.833, 0.817, 0.837, and 0.922, respectively. Correlation analysis showed that the SP-D levels were negatively correlated with LYM (r = − 0.320, P = 0.047), while positively correlated with CRP (r = 0.658, P<0.001), IL-6 (r = 0.471, P = 0.002), the duration of nucleic acid of throat swab turning negative (r = 0.668, P<0.001), chest CT imaging score on admission (r = 0.695, P<0.001) and length of stay (r = 0.420, P = 0.008). Multivariate logistic regression model analysis showed that age (P = 0.041, OR = 1.093) and SP-D (P = 0.008, OR = 1.018) were risk factors for severe COVID-19. Conclusions Elevated serum SP-D level was a potential biomarker for the severity of COVID-19; this may be useful in identifying patients whose condition worsens at an early stage.

scholarly journals Clinical Significance of Serum Hemeoxygenase-1 as a New Biomarker for the Patients with Interstitial Pneumonia

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Kota Murohashi ◽  
Yu Hara ◽  
Kanako Shinada ◽  
Kenjiro Nagai ◽  
Masaharu Shinkai ◽  
...  
Keyword(s):  
High Resolution ◽  
Hospital Mortality ◽  
Disease Activity ◽  
Interstitial Pneumonia ◽  
Ground Glass Opacity ◽  
Serum Levels ◽  
Surfactant Protein ◽  
Serum Biomarkers ◽  
Surfactant Protein D ◽  
Newly Diagnosed

Background. Serum hemeoxygenase-1 (HO-1) has been proposed to be a biomarker of lung disease activity and prognosis. The present study aimed at evaluating whether HO-1 could be a useful marker for evaluating disease activity and predicting prognosis in patients with interstitial pneumonia (IP). Materials and Methods. Serum HO-1 levels of newly diagnosed or untreated patients with IP were measured at hospitalization. We evaluated the relationships between serum HO-1 and other serum biomarkers, high resolution CT (HRCT) findings, and hospital mortality. Results. Twenty-eight patients with IP, including 14 having an acute exacerbation (AE) and 14 not having an AE, were evaluated. The patients having an AE had significantly higher HO-1 levels than those not having an AE (53.5 ng/mL vs. 24.1 ng/mL; p<0.001), and the best cut-off level to discriminate between having an AE or not having an AE was 41.6 ng/mL. Serum HO-1 levels were positively correlated with serum levels of surfactant protein-D (r=0.66, p<0.001) and the ground glass opacity score (calculated from HRCT; r=0.40, p=0.036). Patients who subsequently died in hospital had presented with significantly higher HO-1 levels than those who did not die in hospital (64.8 ng/mL vs. 32.0 ng/mL; p=0.009). Conclusion. Serum HO-1 may serve as a useful biomarker for detecting AE or predicting hospital mortality in patients with IP.

scholarly journals Circulating miRNA-181b-5p, miRNA-223-3p, miRNA-210-3p, let 7i-5p, miRNA-21-5p and miRNA-29a-3p in patients with localized scleroderma as potential biomarkers

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Katarzyna Wolska-Gawron ◽  
Joanna Bartosińska ◽  
Marta Rusek ◽  
Małgorzata Kowal ◽  
Dorota Raczkiewicz ◽  
...  
Keyword(s):  
Longitudinal Research ◽  
Clinical Symptoms ◽  
Serum Levels ◽  
Surfactant Protein ◽  
Localized Scleroderma ◽  
Surfactant Protein D ◽  
Chemokine Ligand ◽  
Dipeptidylpeptidase 4 ◽  
Potential Biomarkers

AbstractLocalized scleroderma (LoSc) is a rare disease manifested by an inflammation and sclerosis of the skin. The latest studies focused on glycoprotein Krebs von den Lungen-6, surfactant protein-D, chemokine ligand 18 and dipeptidylpeptidase 4 as potential biomarkers of skin fibrosis in systemic scleroderma. Our study aimed to identify 6 miRNAs with elevated or decreased levels in 38 LoSc patients (31 females, 7 males) compared to healthy volunteers (HVs) and to correlate the selected miRNAs’ serum levels with the severity and the clinical symptoms of LoSc and some laboratory parameters with the selected miRNAs’ serum levels. The serum levels of miRNAs, i.e. miRNA-181b-5p, miRNA-223-3p, miRNA-21-5p, let 7i-5p, miRNA-29a-3p and miRNA-210-3p were significantly increased in the LoSc patients compared to the HVs. The level of let-7i increase in the female LoSc patients correlated negatively with BSA (r =  − 0.355, p = 0.049) and mLoSSI (r =  − 0.432, p = 0.015). Moreover, the female patients with inactive LoSc had significantly higher level of let-7i (2.68-fold on average) in comparison to those with active disease (p = 0.045). The exact role of those molecules has not been revealed in LoSc and a long-term longitudinal research is pivotal to confirm their prognostic value.

Decreased Serum Levels of Surfactant Protein D (SP-D) Prior Transplant Is Associated with the Development of Bronchiolitis Obliterans (BO) and Idiopathic Pneumonia Syndrome (IPS) Following Allogeneic Hematopoietic Stem Cell Transplantation.

Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 2915-2915
Author(s):  
Takahiko Nakane ◽  
Hirohisa Nakamae ◽  
Hiroshi Kamoi ◽  
Hideo Koh ◽  
Yasunobu Takeoka ◽  
...  
Keyword(s):  
Stem Cell ◽  
Hematopoietic Stem Cell Transplantation ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Bronchiolitis Obliterans ◽  
Serum Levels ◽  
Surfactant Protein ◽  
Surfactant Protein D ◽  
Hematopoietic Stem ◽  
Idiopathic Pneumonia Syndrome

Abstract Non-infectious pulmonary complications which occur beyond 3 months of allogeneic hematopoietic stem cell transplantation (allo-HSCT) have become recognized as a critical problem. Above all, bronchiolitis obliterans (BO) and idiopathic pneumonia syndrome (IPS) are difficult to be cured and cause high mortality. Therefore, early identification of patients with higher risk for BO/IPS may lead to improving outcome of allo-HSCT. Surfactant protein D (SP-D) is one of collectins mainly synthesized by alveolar type II cells. The best known function is to prevent the collapse of alveoli by decreasing surface tension at alveolar air-lipid interface, and SP-D plays an important roles as a mediator in innate immunity in the lung. In clinical practice, high serum SP-D level is used as a marker lung diseases. Recently, low production of SP-D in the alveoli has been considered as an important pathgenesis of adult respiratory distress. We analyzed serum SP-D levels before allo-HSCT of 42 patients who received allo-HSCT in our institution between November 2001 and February 2006 and survived more than 90 days after transplant. In all patients, 5 patients had BO and 3 had IPS at a median interval of 303 and 117 days of transplantation (range; 100–452 and 95–153 days). As a result of univariate analysis, BO/IPS patients had lower serum SP-D levels prior allo-HSCT and extensive type of cGVHD except lung compared with no BO/IPS patients (p=0.06 and 0.07). KL-6 had also mildly associated with BO/IPS. On the other hand, we couldn’t find the association in sex, age, donor source, conditioning regimen, disease status, aGVHD, and FEV1.0/FVC and SP-A prior HSCT. We could not clarify the precise mechanism of the association between Decreased serum levels of SP-D and the development of BO and IPS following allo-HSCT. However, we speculate that low production of SP-D in the alveoli, which causes innate immune compromise, might contribute to extreme pulmonary alloreaction.

Serum Levels of Surfactant Protein D Are Increased in Mice With Lung Tumors

CHEST Journal ◽  
2004 ◽  
Vol 125 (5) ◽  
pp. 109S ◽  
Author(s):  
F. Zhang ◽  
W. Pao ◽  
S. Umphress ◽  
S. Jakowlew ◽  
A.M. Meyer ◽  
...  
Keyword(s):  
Serum Levels ◽  
Surfactant Protein ◽  
Lung Tumors ◽  
Surfactant Protein D

scholarly journals Genetic Association With Pseudomonas aeruginosa Acquisition in Cystic Fibrosis: Influence of Surfactant Protein D and Mannose-Binding Lectin

2021 ◽  
Vol 12 ◽  
Author(s):  
Nasenien Nourkami-Tutdibi ◽  
Klemens Freitag ◽  
Michael Zemlin ◽  
Erol Tutdibi
Keyword(s):  
Cystic Fibrosis ◽  
Pseudomonas Aeruginosa ◽  
Genetic Variants ◽  
Serum Levels ◽  
Surfactant Protein ◽  
Mannose Binding Lectin ◽  
Surfactant Protein D ◽  
Risk Haplotype ◽  
Mannose Binding ◽  
Binding Lectin

Background:Pseudomonas aeruginosa (PA) infection in cystic fibrosis (CF) is associated with poor prognosis. Surfactant protein-D (SFTPD) and mannose-binding lectin (MBL) play a critical role in innate immunity and response to bacterial infections. We investigated serum levels and genetic variants of SFTPD and MBL in CF patients.Method: Thirty-five Caucasian patients homozygous for ΔF508del were genotyped for functional relevant polymorphisms within MBL2 (promoter−221 Y/X, codons 52, 54, and 57) and SFTPD genes (Met11Thr, Ala160Thr, and Ser270Thr). Serum levels of collectins, clinical characteristics, and PA status were correlated with genetic data.Results: Patients age, gender, and PA status did not affect MBL and SFTPD serum concentrations. MBL concentrations were correlated with MBL haplotypes. Patients with chronic Pseudomonas aeroginosa infection (PAC) and MBL insufficiency had a shorter interval between first PA infection and onset of PAC (0.01 vs. 4.6 years, p &lt; 0.04) as well as a lower median age at transition to PAC (9.8 vs. 16.4 years, p &lt; 0.03) compared to MBL sufficient patients with PAC. SFTPD serum level and FEV1% (Spearman r = −0.41, p &lt; 0.03) showed a negative correlation irrespective of PA infection status. The hazard ratio to PA acquisition was increased in carriers of the SFTPD haplotype 11Thr-160Ala-270Ser compared to carriers of the common 11Met-160Thr-270Ser haplotype [HR 3.0 (95%CI: 1.1–8.6), p &lt; 0.04].Conclusion: MBL insufficiency leads to a shorter interval between first PA infection and onset of chronic infection. Susceptibility to PA acquisition is associated with SFTPD genetic variants with 11Thr-160Ala-270Ser as risk haplotype for early PA infection. This may be due to presence of threonine associated with oligomeric structure of SFTPD and binding ability to bacteria.

scholarly journals Serum TARC Levels in Patients with Systemic Sclerosis: Clinical Association with Interstitial Lung Disease

2021 ◽  
Vol 10 (4) ◽  
pp. 660
Author(s):  
Ai Kuzumi ◽  
Ayumi Yoshizaki ◽  
Satoshi Ebata ◽  
Takemichi Fukasawa ◽  
Asako Yoshizaki-Ogawa ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Interstitial Lung Disease ◽  
Lung Disease ◽  
Major Complication ◽  
Serum Levels ◽  
Surfactant Protein ◽  
Th2 Cells ◽  
Surfactant Protein D ◽  
Th2 Cytokine ◽  
Fibrotic Disorder

Systemic sclerosis (SSc) is a multisystem fibrotic disorder with autoimmune background. Accumulating evidence has highlighted the importance of T helper (Th) 2 cells in the pathogenesis of SSc and its complications. Because thymus and activation-regulated chemokine (TARC) is a potent chemoattractant for Th2 cells, we measured serum TARC levels in SSc patients and analyzed their correlation with interstitial lung disease (ILD), a major complication of SSc. Serum TARC levels were significantly elevated in patients with SSc, especially in those with the diffuse subtype, compared with healthy controls. In particular, dcSSc patients with SSc-associated ILD (SSc-ILD) showed higher TARC levels than those without SSc-ILD. However, there was no significant correlation between serum TARC levels and pulmonary function in SSc patients. Serum TARC levels did not correlate with serum levels of interleukin-13, an important Th2 cytokine, either. Furthermore, in the longitudinal study, serum TARC levels did not predict the onset or progression of SSc-ILD in patients with SSc. These results were in contrast with those of KL-6 and surfactant protein D, which correlated well with the onset, severity, and progression of SSc-ILD. Overall, these results suggest that serum TARC levels are not suitable for monitoring the disease activity of SSc-ILD.

The relationhip between serum levels of Surfactant protein D in COPD exacerbation severity and mortality

2018 ◽  
Author(s):  
Fatma Esra Günaydin ◽  
Nurdan Kalkan ◽  
Gülşah Günlüoğlu ◽  
Esma Nur Aktepe ◽  
Barış Demirkol ◽  
...  
Keyword(s):  
Serum Levels ◽  
Surfactant Protein ◽  
Surfactant Protein D ◽  
Copd Exacerbation
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