scholarly journals Serum calprotectin as new biomarker for disease severity in idiopathic pulmonary fibrosis: a cross-sectional study in two independent cohorts

2021 ◽  
Vol 8 (1) ◽  
pp. e000827 ◽  
Author(s):  
Carlos Machahua ◽  
Sabina A. Guler ◽  
Michael P. Horn ◽  
Lurdes Planas-Cerezales ◽  
Ana Montes-Worboys ◽  
...  

BackgroundNon-invasive biomarkers for the assessment of disease severity in idiopathic pulmonary fibrosis (IPF) are urgently needed. Calprotectin belongs to the S-100 proteins produced by neutrophils, which likely contribute to IPF pathogenesis. Calprotectin is a well-established biomarker in inflammatory bowel diseases. In this cross-sectional study, we aimed to establish the potential role of calprotectin as a biomarker in IPF. Specifically, we hypothesised that patients with IPF have higher serum calprotectin levels compared with healthy controls, and that calprotectin levels are associated with disease severity.MethodsBlood samples were obtained from healthy volunteers (n=26) and from two independent IPF cohorts (derivation cohort n=26, validation cohort n=66). Serum calprotectin levels were measured with a commercial kit adapted for that purpose and compared between healthy controls and patients with IPF. Clinical parameters, including forced vital capacity, diffusing capacity for carbon monoxide (DLCO) and the Composite Physiologic Index (CPI), were correlated with calprotectin serum levels.ResultsThe IPF derivation cohort showed increased serum calprotectin levels compared with healthy controls (2.47±1.67 vs 0.97±0.53 µg/mL, p<0.001). In addition, serum calprotectin levels correlated with DLCO% predicted (r=−0.53, p=0.007) and with CPI (r=0.66, p=0.007). These findings were confirmed in an independent IPF validation cohort.ConclusionSerum calprotectin levels are significantly increased in patients with IPF compared with healthy controls and correlate with DLCO and CPI. Calprotectin might be a potential new biomarker for disease severity in IPF.

Nutrition ◽  
2019 ◽  
Vol 62 ◽  
pp. 115-121 ◽  
Author(s):  
Stéphane Jouneau ◽  
Mallorie Kerjouan ◽  
Chloé Rousseau ◽  
Mathieu Lederlin ◽  
Francisco Llamas-Guttierez ◽  
...  

2019 ◽  
Vol 6 (4) ◽  
pp. 1207
Author(s):  
Roshan Lal ◽  
Pratik Kumar

Background: Many of the ILDs are difficult to differentiate on clinical examination and history as they have similar clinical features. Symptom complex is not beyond that of respiratory symptoms. The objective was to study the clinical picture and spirometry pattern of the patients having interstitial lung disease.Methods: Hospital based cross sectional study was carried out among 73 cases of ILDs. Data related to history, clinical examination was recorded. Six minute walk test and spirometry was carried out. The data was analysed using proportions.Results: Incidence of Idiopathic pulmonary fibrosis (IPF) increased with age. Exertional dyspnea (100%) and cough (95.9%) were the commonest presenting symptoms amongst ILD patients. End inspiratory fine crackles (95.1%) and clubbing (67.1%) are the predominant clinical signs. Mean BMI of various ILDs patients were 24.86±8.2 Kg/m² in NSIP followed by 22.9±4.6 in sarcoidosis 21.9±6.4 and 20.8±3.94 in IPF and in Cryptogenic Organizing Pneumonias 19.34±1.8 Kg/M². Serum ACE level was raised in 69.2% patients of sarcoidosis. 81 % of patients could successfully perform 6 Minute Walk Test. Among those who could perform, average desaturation was 8.11% in sarcoidosis, 7.52% in IPF, 6.0% In Hypersensitivity Pneumonitis, 5.75% in NSIP and 4.75% in CTD associated ILDs patients. Raised C Reactive Protein label was consistent (45.2%) in ILDs, maximum in HP (63%) and 2 out of 3 patients with COP and 3 out of 5 patients of CTD associated ILDs. 17.8% cases had positive serum ANA, maximum in IPF.Conclusions: Idiopathic pulmonary fibrosis (IPF) was the commonest Interstitial Lung disease present in 39.7% of 73 cases followed by sarcoidosis in 17.9%, cases.


2019 ◽  
Author(s):  
Dwi Ratna Adisty ◽  
Iskandar Zulkarnain ◽  
Diah Mira Indramaya

Melatonin an important immunomodulatory molecule in allergic diseases. Melatonin also plays a role in several body systems including to regulate circadian rhythms because of its role to cause drowsiness. Research shows in the case of atopic dermatitis (AD) circadian production of melatonin is reduced compared to healthy controls. This study aimed to investigate the differences of urinary melatonin levels between children with AD and healthy controls, and its relationship with disease severity. A cross sectional study was conducted in pediatric dermatology division of our outpatient clinic. Severity of AD was determined by using the instruments Scoring Atopic Dermatitis (SCORAD). Urinary melatonin levels were measured by Enzyme-linked immunosorbent assay (ELISA). The urinary melatonin levels in AD group were not significantly lower than in healthy controls (P =0.98 P<0.05) but the means show lower levels of urinary melatonin levels in AD group (486.73 ± 292.13 pg/ml , 611.51 ± 280.45 pg/ml, respectively). There were no significant association between urinary melatonin levels and disease severity (P > 0.05) but there’s a tendency of decreased urinary melatonin with increased the severity of AD.


Respirology ◽  
2016 ◽  
Vol 22 (4) ◽  
pp. 721-727 ◽  
Author(s):  
Toshiaki Matsuda ◽  
Hiroyuki Taniguchi ◽  
Masahiko Ando ◽  
Yasuhiro Kondoh ◽  
Tomoki Kimura ◽  
...  

Pain Medicine ◽  
2021 ◽  
Author(s):  
Michal Rivel ◽  
Anat Achiron ◽  
Mark Dolev ◽  
Yael Stern ◽  
Gaby Zeilig ◽  
...  

Abstract Objective About a third of patients with multiple sclerosis (MS) suffer from chronic and excruciating central neuropathic pain (CNP). The mechanism underlying CNP in MS is not clear, since previous studies are scarce and their results are inconsistent. Our aim was to determine whether CNP in MS is associated with impairment of the spinothalamic-thalamocortical pathways (STTCs) and/or increased excitability of the pain system. Design Cross sectional study Setting General hospital Subjects 47 MS patients with CNP, 42 MS patients without CNP, and 32 healthy controls. Methods Sensory testing included the measurement of temperature, pain, and touch thresholds and the thermal grill illusion (TGI) for evaluating STTCs function, and hyperpathia and allodynia as indicators of hyperexcitability. CNP was characterized using interviews and questionnaires. Results The CNP group had higher cold and warm thresholds (p &lt; 0.01), as well as higher TGI perception thresholds (p &lt; 0.05), especially in painful body regions compared to controls, whereas touch and pain thresholds values were normal. The CNP group also had a significantly greater prevalence of hyperpathia and allodynia. Regression analysis revealed that whereas presence of CNP was associated with a higher cold threshold, CNP intensity, and the number of painful body regions were associated with allodynia and hyperpathia, respectively. Conclusions CNP in MS is characterized by a specific impairment of STTC function; the innocuous thermal pathways, and by pain hyperexcitability. Whereas CNP presence is associated with STTC impairment, its severity and extent are associated with pain hyperexcitability. Interventions that reduce excitability level may therefore mitigate CNP severity.


2021 ◽  
Vol 22 (1) ◽  
Author(s):  
R. Meier ◽  
C. Emch ◽  
C. Gross-Wolf ◽  
F. Pfeiffer ◽  
A. Meichtry ◽  
...  

Abstract Background Low back pain (LBP) is one of the most common musculoskeletal disorders, causing significant personal and social burden. Current research is focused on the processes of the central nervous system (particularly the sensorimotor system) and body perception, with a view to developing new and more efficient ways to treat chronic low back pain (CLBP). Several clinical tests have been suggested that might have the ability to detect alterations in the sensorimotor system. These include back-photo assessment (BPA), two-point discrimination (TPD), and the movement control tests (MCT). The aim of this study was to determine whether the simple clinical tests of BPA, TPD or MCT are able to discriminate between nonspecific CLBP subjects with altered body perception and healthy controls. Methods A cross-sectional study was conducted. At one point in time, 30 subjects with CLBP and 30 healthy controls were investigated through using BPA, TPD and MCT on the lower back. Correlations among the main covariates and odds ratios for group differences were calculated. Results MCT showed an odds ratio for the presence of CLBP of 1.92, with a statistically significant p-value (0.049) and 95%CI. The TPD and BPA tests were unable to determine significant differences between the groups. Conclusions Of the three tests investigated, MCT was found to be the only suitable assessment to discriminate between nonspecific CLBP subjects and healthy controls. The MCT can be recommended as a simple clinical tool to detect alterations in the sensorimotor system of nonspecific CLBP subjects. This could facilitate the development of tailored management strategies for this challenging LBP subgroup. However, further research is necessary to elucidate the potential of all the tests to detect alterations in the sensorimotor system of CLBP subjects. Trial registration No trial registration was needed as the study contains no intervention. The study was approved by the Swiss Ethics Commission of Northwest and Central Switzerland (EKNZ) reference number 2015–243.


Author(s):  
Elaine Cristina Rocha Pádua ◽  
Silvia Daher ◽  
Isa de Pádua Cintra Sampaio ◽  
Edward Araujo Júnior ◽  
Cristina Falbo Guazzelli

Abstract Objective To evaluate serum levels of adiponectin in pregnant adolescents between 30 and 36 weeks of gestation. Method: A prospective cross-sectional study enrolled 67 normal pregnant women between 30 and 36 weeks of gestation and eutrophic (body mass index [BMI]: 18.5–25 kg/m2), of which 36 were adolescents (< 20 years old) and 31 adults (≥ 20 years old). Serum adiponectin levels were determined by enzyme-linked immunosorbent assay (ELISA). The t-student or Mann-Whitney tests were used for intergroup comparison. Results Pregnant adolescents showed significantly higher serum adiponectin concentrations compared with pregnant adults (p = 0.04). No differences were observed in adiponectin levels in younger pregnant adolescents (< 16 years old) compared with older pregnant adolescents (≥ 16 years old). Adiponectin values were divided into 3 subgroups: < 3,000 ng/mL, between 3,000 and 5,000 ng/mL, and > 5,000 ng/mL. Birthweight was significantly higher in women > 5,000 ng/mL when compared with < 3,000 ng/mL in the adolescent group. No association between pregestational adiponectin levels and BMI, gestational weight gain, and gestational age was observed; however, there was a positive relation with birthweight (p = 0.0239). Conclusion Serum adiponectin values in pregnant adolescents between 30 and 36 weeks of gestation were higher compared with pregnant adults; however, no differences between younger and older pregnant adolescents were observed.


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