scholarly journals Cross-sectional Study of Cholinergic Urticaria Subtypes and Bronchial Hyperresponsiveness

Author(s):  
Naoko Katsurada ◽  
Tatsuya Nagano ◽  
Masatsugu Yamamoto ◽  
Tatsunori Kiriu ◽  
Ryota Dokuni ◽  
...  

Abstract BackgroundCholinergic urticaria (CholU) is classified into several subtypes: 1) conventional sweat allergy-type CholU (conventional SAT-CholU), 2) CholU with palpebral angioedema (CholU-PA), 3) CholU with acquired anhidrosis and/or hypohidrosis (CholU-Anhd), and other rare type; 1) and 2) include SAT based on pathogenesis. There have been no studies on differences in the prevalence of bronchial asthma among the CholU subtypes. This is investigated in the present study by evaluating the bronchial responsiveness of each subtype.MethodsPatients 16–80 years of age with CholU were enrolled. We analyzed bronchial responsiveness, respiratory symptoms, and exhaled nitric oxide (FeNO). Bronchial responsiveness was assessed using the methacholine dose indicator Dmin.ResultsA total of 11 patients with conventional SAT-CholU, 11 with CholU-PA, and 11 with CholU-Anhd were enrolled. Median log10 Dmin (interquartile range) of patients with conventional SAT-CholU, CholU-PA, and CholU-Anhd was 0.381 (−0.829, 1.079), 0.717 (0.249, 0.787), and 1.318 (0.121, 1.699), respectively (p=0.516). Dmin was lower in patients with SAT (conventional SAT-CholU and CholU-PA) than in those with CholU-Anhd, although the differences among the 3 types were not significant. Respiratory symptoms evaluated using the International Primary Care Airways Group questionnaire were less frequently observed in CholU-Anhd (0 [0, 1]) than in conventional SAT-CholU (1 [0–2]) or CholU-PA (1 [1–3]) (p=0.049). FeNO of patients with conventional SAT-CholU, CholU-PA, and CholU-Anhd was 23 (18.5, 65.0), 39 (32.0, 59.5), and 25 (19.0, 33.0) ppb, respectively (p=0.237). One of 11 conventional SAT-CholU patients (9.1%) and 6 of 11 CholU-PA patients (54.5%) required treatment for bronchial asthma.ConclusionsLog Dmin tended to be lower in patients with SAT-CholU than in those with CholU-Anhd. Distinguishing between CholU subtypes may reveal different degrees of bronchial responsiveness based on a distinct pathogenesis.Trial registration numberUMIN 000025669; https://upload.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000027550

2021 ◽  
Author(s):  
Naoko Katsurada ◽  
Tatsuya Nagano ◽  
Masatsugu Yamamoto ◽  
Tatsunori Kiriu ◽  
Ryota Dokuni ◽  
...  

Abstract Background: Cholinergic urticaria (CholU) is classified into several subtypes: 1) conventional sweat allergy-type CholU (conventional SAT-CholU), 2) CholU with palpebral angioedema (CholU-PA), 3) CholU with acquired anhidrosis and/or hypohidrosis (CholU-Anhd); 1) and 2) include SAT based on pathogenesis. There have been no studies on differences in the prevalence of bronchial asthma among the subtypes. We evaluated the bronchial responsiveness of each subtype. Methods: We analyzed bronchial responsiveness using the methacholine dose indicator Dmin, respiratory symptoms, and exhaled nitric oxide (FeNO). Results: Median log10 Dmin (interquartile range) of patients with conventional SAT-CholU (n=11), CholU-PA (n=11), and CholU-Anhd (n=11) was 0.381 (−0.829, 1.079), 0.717 (0.249, 0.787), and 1.318 (0.121, 1.699), respectively (p=0.516). Respiratory symptoms evaluated using the International Primary Care Airways Group questionnaire were less frequently observed in CholU-Anhd (0 [0, 1]) than in conventional SAT-CholU (1 [0–2]) or CholU-PA (1 [1–3]) (p=0.049). FeNO of patients with conventional SAT-CholU, CholU-PA, and CholU-Anhd was 23 (18.5, 65.0), 39 (32.0, 59.5), and 25 (19.0, 33.0) ppb, respectively (p=0.237). Conclusions: Log Dmin tended to be lower in patients with SAT-CholU than in those with CholU-Anhd. Distinguishing between CholU subtypes may reveal different degrees of bronchial responsiveness based on a distinct pathogenesis.


2020 ◽  
Vol 18 (5) ◽  
pp. 373-380 ◽  
Author(s):  
SeyedAhmad SeyedAlinaghi ◽  
Maryam Ghadimi ◽  
Mahboubeh Hajiabdolbaghi ◽  
Mehrnaz Rasoolinejad ◽  
Ladan Abbasian ◽  
...  

Background: COVID-19 has spread globally with remarkable speed, and currently, there is limited data available exploring any aspect of the intersection between HIV and SARSCoV- 2 co-infection. Objective: To estimate the prevalence of clinical symptoms associated with COVID-19 among people living with HIV (PLWH) in Tehran, Iran. Design: Cross-sectional study. Methods: A total of 200 PLWH were recruited through the positive club via sampling, and completed the symptom-based questionnaire for COVID-19, which was delivered by trained peers. Results: Of 200 participants, respiratory symptoms, including cough, sputum, and shortness of breath, were the most prevalent among participants, but only one person developed symptoms collectively suggested COVID-19 and sought treatments. Conclusions: It appears that existing infection with HIV or receiving antiretroviral treatment (ART) might reduce the susceptibility to the infection with SARS-CoV-2 or decrease the severity of the infection acquired. Further research is needed to understand causal mechanisms.


2015 ◽  
Vol 7 (S1) ◽  
Author(s):  
Patrícia Ramos Guzatti ◽  
Amely PS Balthazar ◽  
Maria Heloisa Busi da Silva Canalli ◽  
Thais Fagnani Machado

Author(s):  
Dislene Nascimento dos Santos ◽  
Katia Nunes Sá ◽  
Fernanda C. Queirós ◽  
Alaí Barbosa Paixão ◽  
Kionna Oliveira Bernardes Santos ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andrzej S. Januszewski ◽  
Yoon Hi Cho ◽  
Mugdha V. Joglekar ◽  
Ryan J. Farr ◽  
Emma S. Scott ◽  
...  

AbstractThe aim of this cross-sectional study was to compare plasma C-peptide presence and levels in people without diabetes (CON) and with Type 1 diabetes and relate C-peptide status to clinical factors. In a subset we evaluated 50 microRNAs (miRs) previously implicated in beta-cell death and associations with clinical status and C-peptide levels. Diabetes age of onset was stratified as adult (≥ 18 y.o) or childhood (< 18 y.o.), and diabetes duration was stratified as ≤ 10 years, 10–20 years and > 20 years. Plasma C-peptide was measured by ultrasensitive ELISA. Plasma miRs were quantified using TaqMan probe-primer mix on an OpenArray platform. C-peptide was detectable in 55.3% of (n = 349) people with diabetes, including 64.1% of adults and 34.0% of youth with diabetes, p < 0.0001 and in all (n = 253) participants without diabetes (CON). C-peptide levels, when detectable, were lower in the individuals with diabetes than in the CON group [median lower quartile (LQ)–upper quartile (UQ)] 5.0 (2.6–28.7) versus 650.9 (401.2–732.4) pmol/L respectively, p < 0.0001 and lower in childhood versus adult-onset diabetes [median (LQ–UQ) 4.2 (2.6–12.2) pmol/L vs. 8.0 (2.3–80.5) pmol/L, p = 0.02, respectively]. In the childhood-onset group more people with longer diabetes duration (> 20 years) had detectable C-peptide (60%) than in those with shorter diabetes duration (39%, p for trend < 0.05). Nine miRs significantly correlated with detectable C-peptide levels in people with diabetes and 16 miRs correlated with C-peptide levels in CON. Our cross-sectional study results are supportive of (a) greater beta-cell function loss in younger onset Type 1 diabetes; (b) persistent insulin secretion in adult-onset diabetes and possibly regenerative secretion in childhood-onset long diabetes duration; and (c) relationships of C-peptide levels with circulating miRs. Confirmatory clinical studies and related basic science studies are merited.


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