Doxycycline may be more clinically effective in type 2 chronic rhinosinusitis nasal polyp comorbid with asthma.

OBJECTIVE: Chronic rhinosinusitis with nasal polyp (CRSwNP) is one of the major phenotypes of chronic rhinosinusitis (CRS) with a high symptom burden. Doxycycline can be used as add-on therapy in CRSwNP. We aimed to evaluate short-term efficacy of oral doxycycline on visual analog scale (VAS) and SNOT-22 (Sino-nasal outcome test) score for CRSwNP. METHODS: Visual analog score (VAS) for nasal symptoms and total SNOT-22 scores of 28 patients who applied with the diagnosis of CRSwNP and received 100 mg doxycycline for 21 days were analyzed in this retrospective cohort study. Doxycycline efficacy was also evaluated in subgroups determined according to asthma, presence of atopy, total IgE and eosinophil levels. RESULTS: After 21-day doxycycline treatment, there was a significant improvement in VAS score for post-nasal drip, nasal discharge, nasal congestion, and sneeze, and total SNOT-22 score (p = 0.001, p < 0.001, p < 0.001, p < 0.001, p < 0.001, respectively). No significant improvement was observed in VAS score for the loss of smell (p = 0.18). In the asthmatic subgroup, there were significant improvements in all VAS scores and total SNOT-22 score after doxycycline. In the non-asthmatic subgroup, there was no significant change in any of the VAS scores, but total SNOT-22 score was significantly improved (42 [21-78] vs. 18 [9-33]; p = 0.043). Improvement in VAS score for loss of smell is significant in only some subgroups like asthmatic patients, non-atopic patients, and patients with eosinophil >300 cell/µL. CONCLUSIONS: Doxycycline can be considered as an add-on treatment for symptom control in patients especially with CRSwNP comorbid with asthma.

The Effectiveness of Biological Agents on Chronic Rhinosinusitis with Nasal Polyposis in Patients with Comorbid Asthma: A Multicenter Real-Life Study from Türkiye.

Background and Objectives: Real-life data on the efficacy of biologic agents (BAs) on asthma-comorbid CRSwNP are needed. Our primary goal is to investigate the effects of BAs on CRSwNP symptoms, as well as endoscopic and tomography scores. Our secondary goal is to show a reduction in the frequency of acute sinusitis exacerbations and the need for surgery. Materials and Methods: We conducted a multicenter, retrospective, real-life study. We screened the patients with asthma-comorbid CRSwNP treated with omalizumab or mepolizumab. A total of 69 patients (40 F/29 M; omalizumab n = 55, mepolizumab n = 14) were enrolled. We compared the visual analog scale (VAS), sinonasal outcome test-22 (SNOT-22), nasal congestion score (NCS), Lund-Mackay computed tomography score (LMS), and total endoscopic polyp scores (TPS) before and after BAs. We evaluated the endoscopic sinus surgery (ESS) and acute exacerbations of chronic rhinosinusitis (AECRS) frequencies separately, according to the BAs. Results: The overall median (min-max) age was 43 (21-69) years. The median (min-max) of biologic therapy duration was 35 (4-113) months for omalizumab and 13.5 (6-32) for mepolizumab. Significant improvements were seen in VAS, SNOT-22, and NCS with omalizumab and mepolizumab. A significant decrease was observed in TPS with omalizumab [95% CI: 0-4] (p < 0.001), but not with mepolizumab [95% CI: -0.5-2] (p = 0.335). The frequency of ESS and AECRS were significantly reduced with omalizumab [95% CI: 2-3] (p < 0.001) and [95% CI: 2-5] (p < 0.001); and mepolizumab [95% CI: 0-2] (p = 0.002) and [95% CI: 2-8.5] (p < 0.001), respectively. There was no significant difference in LMS with either of the BAs. Conclusions: Omalizumab and mepolizumab can provide a significant improvement in the sinonasal symptom scores. BAs are promising agents for CRSwNP patients with frequent exacerbations and multiple surgeries.

Picturing asthma in Turkey: results from the Turkish adult asthma registry.

INTRODUCTION: National data on asthma characteristics and the factors associated with uncontrolled asthma seem to be necessary for every country. For this purpose, we developed the Turkish Adult Asthma Registry for patients with asthma aiming to take a snapshot of our patients, thereby assigning the unmet needs and niche areas of intervention. METHODS: Case entries were performed between March 2018 and March 2022. A web-based application was used to record data. Study outcomes were demographic features, disease characteristics, asthma control levels, and phenotypes. RESULTS: The registry included 2053 patients from 36 study centers in Turkey. Female subjects dominated the group (n = 1535, 74.8%). The majority of the patients had allergic (n = 1158, 65.3%) and eosinophilic (n = 1174, 57.2%) asthma. Six hundred nineteen (32.2%) of the patients had obese asthma. Severe asthma existed in 670 (32.6%) patients. Majority of cases were on step 3-5 treatment (n: 1525; 88.1%). Uncontrolled asthma was associated with low educational level, severe asthma attacks in the last year, low FEV1, existence of chronic rhinosinusitis and living in particular regions. CONCLUSION: The picture of this registry showed a dominancy of middle-aged obese women with moderate-to-severe asthma. We also determined particular strategic targets such as low educational level, severe asthma attacks, low FEV1, and chronic rhinosinusitis to decrease uncontrolled asthma in our country. Moreover, some regional strategies may also be needed as uncontrolled asthma is higher in certain regions. We believe that these data will guide authorities to reestablish national asthma programs to improve asthma service delivery.

Evaluation of diaphragm functions with diaphragm ultrasound and pulmonary function tests in individuals with Friedreich's ataxia.

Background/aim: It is known that the correlation of pulmonary function tests (PFT) with muscle dysfunction is insufficient. Here, we aimed to evaluate the diaphragm functions in individuals with Friedreich's ataxia (FRDA) and to examine its relationship with respiratory parameters and disease severity. Materials and methods: This prospective study, conducted between November and December 2022, at Erciyes University, included 14 individuals with genetically confirmed FRDA and an age- and gender-matched healthy control group of eight individuals. We examined pulmonary functions with spirometric methods and evaluated diaphragm excursion, and diaphragm thickness-expiratory (Tde) and - end of inspiration (Tdi) with ultrasonography during calm breathing. Thickening fraction (TF) calculated. Also, we examined PaCO2 at rest. The neurological status of individuals was assessed using the Scale for the Assessment and Rating of Ataxia (SARA). Results: The mean values of FEV1(lt), FEV1(%), FVC (lt), and FVC (%) were higher in the control group (p; <0.001, 0.013, <0.001, and 0.009, respectively). Also, mean Tdi, Tde, excursion and TF were lower in the FRDA group compared to the control group (p = 0.005, 0.294,0.005, and 0.019, respectively). The mean excursion value was 1.13 ± 0.54cm in the FRDA group and 1.71 ± 0.49cm in the control group. There is a strong, negative, and statistically significant correlation between SARA total score with excursion and TF (r = -0.7432, p = 0.002; r = -0.697, p = 0.008). There is no statistically significant relationship between excursion and BMI, standing-to-supine decrease in FVC, FEV1, and PaCO2. Also, the relationship between maximal inspiratory pressure (PImax) and excursion was moderate. Conclusion: Diaphragm ultrasound may reveal respiratory dysfunction better than PFT. Diaphragm excursion and TF are associated with disease scores in individuals with FDRA. Further studies are needed regarding the detection of alveolar hypoventilation.

Epithelial barrier hypothesis: Effect of the external exposome on the microbiome and epithelial barriers in allergic disease.

Environmental exposure plays a major role in the development of allergic diseases. The exposome can be classified into internal (e.g., aging, hormones, and metabolic processes), specific external (e.g., chemical pollutants or lifestyle factors), and general external (e.g., broader socioeconomic and psychological contexts) domains, all of which are interrelated. All the factors we are exposed to, from the moment of conception to death, are part of the external exposome. Several hundreds of thousands of new chemicals have been introduced in modern life without our having a full understanding of their toxic health effects and ways to mitigate these effects. Climate change, air pollution, microplastics, tobacco smoke, changes and loss of biodiversity, alterations in dietary habits, and the microbiome due to modernization, urbanization, and globalization constitute our surrounding environment and external exposome. Some of these factors disrupt the epithelial barriers of the skin and mucosal surfaces, and these disruptions have been linked in the last few decades to the increasing prevalence and severity of allergic and inflammatory diseases such as atopic dermatitis, food allergy, allergic rhinitis, chronic rhinosinusitis, eosinophilic esophagitis, and asthma. The epithelial barrier hypothesis provides a mechanistic explanation of how these factors can explain the rapid increase in allergic and autoimmune diseases. In this review, we discuss factors affecting the planet's health in the context of the 'epithelial barrier hypothesis,' including climate change, pollution, changes and loss of biodiversity, and emphasize the changes in the external exposome in the last few decades and their effects on allergic diseases. In addition, the roles of increased dietary fatty acid consumption and environmental substances (detergents, airborne pollen, ozone, microplastics, nanoparticles, and tobacco) affecting epithelial barriers are discussed. Considering the emerging data from recent studies, we suggest stringent governmental regulations, global policy adjustments, patient education, and the establishment of individualized control measures to mitigate environmental threats and decrease allergic disease.

Discontinuing Omalizumab Treatment in Super-Responder Patients with Allergic Severe Asthma: Can the Baseline Total IgE Level Be Used as a Biological Marker to Decide Discontinuing Omalizumab Treatment?

BACKGROUND: Although there are many studies presenting the efficacy of omalizumab in severe asthma, the data about the optimal treatment duration are still debated. OBJECTIVE: In this study, we aimed to investigate the clinical effects of omalizumab discontinuation after 5 years of treatment in patients with omalizumab super-responders, the persistence of response and to compare the features of patients, whose symptoms are still well controlled and those who relapsed and re-treated with omalizumab. METHODS: Clinical and laboratory data of 100 adult patients diagnosed with allergic severe asthma and treated with omalizumab between 2008 and 2020 were evaluated retrospectively. Demographic, clinical, functional, and laboratory parameters of the patients who were re-treated with omalizumab and those who did not need to be re-treated were compared. RESULTS: There were 14 super-responder patients, who were treated with omalizumab for 5 years, and the treatment was discontinued then. Omalizumab was not restarted in 9 patients (64%) and was restarted in 5 (36%) patients. No significant difference was presented between these two groups in terms of demographic, clinical, functional, and laboratory parameters. The baseline total IgE levels of patients, who were re-treated with omalizumab, was found to be higher than those who were not, but this difference was not statistically significant (440 [229-864] IU/mL vs. 164 [85-293] IU/mL; p = 0.053, respectively). CONCLUSION: One of 3 patients was re-treated with omalizumab due to loss of asthma control after discontinuation of the treatment. Therefore, omalizumab's immunomodulatory effect may seem to persist in a majority of cases after discontinuation. Also, higher baseline total IgE levels might help to predict the cases that need re-treatment after discontinuation.

The adequacy of current diagnostic criteria for making a diagnosis of ABPA.

Introduction: Currently, there are four different diagnostic criteria systems for allergic bronchopulmonary aspergillosis (ABPA): The Rosenberg-Patterson, Seropositive ABPA (ABPA-S), Central Bronchiectasis and ABPA (ABPA-CB), and the International Society for Human and Animal Mycology (ISHAM) ABPA study group criteria. This study aims to retrospectively compare these four diagnostic criteria in ABPA patients. Materials and Methods: Patients who were followed up with the diagnosis of ABPA were retrospectively re-evaluated using these four diagnostic criteria, and the superiority of these criteria to each other was determined. Result: A total of 10 ABPA patients were included in the study. Seven patients were diagnosed according to ISHAM ABPA study group diagnostic criteria and six patients according to the Rosenberg-Patterson diagnostic criteria. None of the patients fulfilled the criteria when evaluated individually with ABPA-S and ABPA-CB. Of patients diagnosed by ISHAM, five had a total IgE level above 1000 IU/mL and two had below 1000 IU/mL. Conclusions: We demonstrated that the diagnostic criteria developed by the ISHAM ABPA study group were superior to the others in diagnosing ABPA in cases with a total IgE level above 1000 IU/mL. However, all these criteria seem to be sufficient to diagnose ABPA in patients with a total IgE below 1000 IU/mL. We believe the necessity to demonstrate presence of Aspergillus fumigatus precipitating antibodies or specific IgG positivity should be questioned particularly in patients with radiologic findings compatible with ABPA and a total IgE level below 1000 IU/mL.

Stable and exacerbation period serum cytokine and periostin levels of the five distinct phenotypes of severe asthma.

BACKGROUND: The differences in molecular mechanisms during a stable period and the changes in the inflammatory responses during exacerbations between distinct severe asthma phenotypes remain unclear. In this study, we aimed to characterize stable and exacerbation period serum cytokine and periostin levels of 5 different predefined severe asthma phenotypes with real-life data. Changes in the viral infection-induced exacerbations were also analyzed. METHODS: Serum levels of 8 cytokines and periostin were measured from the sera obtained from the adult patients with five different severe asthma phenotypes based on the presence/absence of aeroallergen sensitivity, peripheral eosinophilia and chronic rhinosinusitis with nasal polyposis (CRSwNP) during stable and exacerbation periods, and from the matched controls. RESULTS: Serum IL-13, IL-25, TSLP, and periostin levels were similar between the patient and the control groups during stable and exacerbation periods. Serum IL-25 and TSLP levels, and peripheral eosinophil count and periostin level showed a strong correlation. Stable period periostin levels were significantly higher in eosinophilic patients, and eosinophilic patients without long-term systemic steroid therapy had higher IL-13 levels. Compared to stable period, exacerbation period serum periostin levels found significantly lower [5853 (2309-8427) pg/mL vs. 4479 (2766-6495) pg/mL; p = 0.05] and periostin levels were much lower in viral infection-induced exacerbations [2913 (893-4770) pg/mL vs. 7094 (4782-9596) pg/mL; p = 0.022]. DISCUSSION: Our study showed that serum periostin levels were decreased in viral infection-induced exacerbations and increased in the presence of eosinophilia independent from atopy and it can help to differentiate eosinophilia even if the patient is under long-term systemic steroid therapy. Also, serum IL-13 levels may reflect peripheral eosinophilia in patients without long-term systemic steroid use.

Venom immunotherapy and difficulties encountered before and during immunotherapy: Double sensitization, systemic reactions, treatment with omalizumab, and high dose VIT.

BACKGROUND: Venom immunotherapy (VIT) is the most effective treatment method to prevent recurrent systemic reactions to Hymenoptera stings. In this study, the demographic characteristics of VIT patients, the success rates of VIT, the difficulties we encountered during VIT, and solutions for these difficulties in our clinic were presented. METHODS: We retrospectively analyzed patients with venom allergy who applied venom immunotherapy between 2013- 2020. Data on age, gender, Hymenoptera species with the first reaction, grade of the reaction, beekeeping history, skin prick and specific IgE and component results, double sensitization, blood groups, and reactions with VIT and/or sting during built-up and maintenance periods were recorded. RESULTS: A total of 73 patients were enrolled in the study. The median time from the first sting reaction to the application to the allergy outpatient clinic was 12 (0.5-24) months. The first sting reaction of 38 (52.1%) of the patients was with honey bees, and 24 (32.9%) were with wasps. Double positivity was present in 29 (40%) of the patients in prick results and 26 (36%) serologically. There was no correlation between the severity of first reactions and Apis Mellifera or Vespula prick diameters (p = 0.643; r = -0.056; p = 0.462; r = 0.089, respectively). High-dose VIT was administered to 4 patients. Omalizumab has been used as an alternative agent to achieve the maintenance dose in 2 patients with frequent systemic reactions during VIT. DISCUSSION: Most patients were able to tolerate VIT. Double positivity is one of the most common difficulties before VIT. In patients who develop systemic reactions in the VIT maintenance phase, a maintenance dose increase should be considered in the maintenance phase. Adding omalizumab does not seem to be a permanent solution in patients who develop a severe systemic reaction.

Effectiveness of as-needed antihistamines in chronic spontaneous urticaria patients under omalizumab treatment.

The question how second-generation antihistamines (sgAHs) should be used when chronic spontaneous urticaria (CSU) is under control with omalizumab is still unanswered. This study aimed to investigate the effectiveness of as-needed sgAHs in patients with well-controlled urticaria under omalizumab treatment. Patients from four different urticaria centers who were treated with omalizumab 300 mg/4 weeks for at least 3 months, had well-controlled urticaria (Urticaria Control Test: 16 > UCT≥12) and were using sgAHs only if needed, were included in this study. In order to assess effectiveness of sgAHs, change in the itch, hives, and total itch-hives scores before and after sgAHs were evaluated using modified urticaria activity score-twice daily. Fifty-three patients [38 female (71.7%)] with mean age 41.1 ± 11.4 years were included in this study. Median sgAH intake per patient throughout the 4 week-intervals was 3 (2-5) tablets. sgAH intake decreased itch, hives and total itch-hives scores 45.7% ± 52.9, 42.4% ± 39.1, and 50.2% ± 51.1, respectively (P < .001 for all). This decrease was similar in both isolated-urticaria and urticaria-and-angioedema phenotypes. Baseline IgE levels were positively correlated with the decrease of three symptom scores (r = 0.31, P = .05; r = 0.375, P = .017; r = 0.31, P = .05, respectively) that showed in patients with higher baseline total IgE levels, as needed sgAH intake decreased the symptom scores less. Our study showed that sgAHs may still be an effective option for the treatment of the intermittent symptoms in patients with well-controlled urticaria under omalizumab treatment. Baseline total IgE levels may be used as a potential biomarker for sgAH effectiveness in these patients.

Worsening of chronic spontaneous urticaria after intake of hot pepper.

BACKGROUND: Patients with chronic spontaneous urticaria (CSU) have been reported to experience increased disease activity in response to the oral intake of hot pepper (Capsicum spp.). As of now, it is unclear how common this is. OBJECTIVE: We assessed patients with CSU for the prevalence of disease worsening after the intake of hot pepper and characterized its effects on their urticaria. METHODS: A questionnaire-based survey study in adult patients with CSU and a history of hot pepper consumption was carried out at a reference center for urticaria in Turkey. CSU patients who had co-existing chronic inducible urticaria were excluded from the study. RESULTS: Of the eighty-five patients with CSU included in this study, 46% (39 of 85) reported worsening of their urticaria after consuming hot pepper. Demographic features, duration of CSU and control status of urticaria were not different between patients who experienced worsening of their urticaria after the intake of hot pepper and those who did not. In affected patients, worsening of their symptoms started 1.2 ± 1.2 hours after the intake of hot pepper and lasted for 3.3 ± 6.8 hours. Symptoms disappeared significantly faster in patients who took antihistamines after worsening of their urticaria with hot pepper (0.7 ± 0.6 vs. 5.8 ± 8.8 hours; p = 0.003). CONCLUSIONS: Worsening of urticaria is common and relevant in patients with CSU in Turkey. Further studies are needed to explore if this is also the case in other geographical regions and to identify and characterize the underlying mechanisms.

[Long-term macrolide therapy in asthma]. / Astimda uzun süreli makrolid tedavisi.

Macrolides are antibiotics with antiviral, anti-inflammatory and immunomodulatory effects in together with their bacteriostatic effects. In addition to its beneficial effects on chronic respiratory diseases such as COPD, cystic fibrosis, diffuse panbronchiolitis, and bronchiectasis, its effects on uncontrolled severe asthma and asthma exacerbations have been the subject of research in recent years. In randomized controlled trials, azithromycin, a macrolide, has been shown to reduce asthma exacerbations and significantly improve asthma-related quality of life in both eosinophilic and non-eosinophilic asthma phenotypes. However, there are also differences such as doses, durations and some studies not showing its effectiveness in severe eosinophilic asthma. In the GINA report, azithromycin can be recommended as an add-on therapy in patients with uncontrolled non-T2 severe asthma despite high-dose inhaled corticosteroid/ long-acting beta2-agonist/long-acting antimuscariniric treatments, or in T2 severe asthma patients whose asthma is not under control despite biologic therapy. In this review, the use of macrolides, especially azithromycin, in the treatment of asthma, immunomodulatory activities and safety profiles are discussed on the basis of current studies and guidelines.

Blood hyperreosinophilia: A diagnostic challenge.

A very detailed differential diagnosis is necessary to investigate the causes of blood hypereosinophilia. In the differential diagnosis of hypereosinophilia with pulmonary involvement, primary and secondary eosinophilic lung diseases should be kept in mind, and more specific diagnoses should be considered in those with a history of nasal polyposis and asthma. Here, it was aimed to present a case of organ-limited hypereosinophilia with asthma and nasal polyposis.

A prospective observational evaluation of treatment outcomes of patients with chronic obstructive pulmonary disease and peripheral blood eosinophilia.

INTRODUCTION: This study aimed to compare two groups of patients with Chronic Obstructive Lung Disease (COPD) and blood eosinophil values of ≥300 cells/ µL. The patients were followed up for one year in two groups, one receiving inhaled corticosteroids (ICS) and the other not receiving ICS in terms of exacerbation rates, the incidence of pneumonia, mortality rates, FEV1, FVC and FEF25-75 changes, the COPD Assessment Test (CAT) and modified Medical Research Council (mMRC) dyspnea scores. MATERIALS AND METHODS: Stable patients, who presented to the University Medical Faculty Chest diseases outpatient clinic and diagnosed with COPD according to pulmonary function test results and GOLD stages 2-4 according to the 2017 GOLD criteria and with blood eosinophil counts of ≥ 300 cells/ µL were included in the study. RESULT: 85 patients were included in the study, of which 76.5% (n= 65) were males. There were no significant differences between the 38 patients receiving ICS and the 47 patients not receiving ICS regarding baseline FEV1, FVC, FEF25- 75 absolute values and percentages, and FEV1, FVC values controlled at month six and month 12, and FEF25-75 absolute values and percentages at month six (p> 0.05). However, the difference between the baseline and month 12 absolute values and percentages of FEF25-75 was statistically significant, and the decrease from baseline was greater in the group receiving ICS (p< 0.05). The difference in CAT and mMRC scores were statistically significant at month six and month nine in favor of the group receiving ICS (p< 0.05). The median number of moderate and severe exacerbations were both one (min: 0, max:3) in the group receiving ICS (n= 38) and in the one not receiving ICS (n= 47). The difference of exacerbation rates in both groups were not statistically significant (p> 0.05). CONCLUSIONS: In this study, it was determined that exacerbation rates of eosinophilic COPD patients did not differ depending on the use of ICS in a one-year period. Nevertheless, the 12-month FEF25-75 values of patients not using ICS were lower to a lesser extent, while the CAT and mMRC scores improved in favor of ICS users at different months in the one-year follow-up.

Stable and exacerbation period serum cytokine and periostin levels of the five distinct phenotypes of severe asthma.

BACKGROUND AND AIM: The differences in molecular mechanisms during stable period and the changes in the inflammatory responses during exacerbations between distinct severe asthma phenotypes remain unclear. In this study, we aimed to characterize stable and exacerbation period serum cytokine and periostin levels of 5 different pre-defined severe asthma phenotypes with real-life data. Changes in the viral infection-induced exacerbations were also analyzed. MATERIALS AND METHODS: Serum levels of 8 cytokines and periostin were measured from the sera obtained from the adult patients with five different severe asthma phenotypes based on the presence/absence of aeroallergen sensitivity, peripheral eosinophilia and chronic rhinosinusitis with nasal polyposis (CRSwNP) during stable and exacerbation periods, and from the matched controls. RESULTS: Serum IL-13, IL-25, TSLP and periostin levels were similar between the patient and the control groups during stable and exacerbation periods. Serum IL-25 and TSLP levels, and peripheral eosinophil count and periostin level showed a strong correlation. Stable period periostin levels were significantly higher in eosinophilic patients and eosinophilic patients without long-term systemic steroid therapy had higher IL-13 levels. Compared to stable period, exacerbation period serum periostin levels found significantly lower [5853 (2309-8427) pg/mL vs. 4479 (2766-6495) pg/mL; p=0.05] and periostin levels were much more lower in viral infection-induced exacerbations [2913 (893-4770) pg/mL vs. 7094 (4782-9596) pg/mL; p=0.022]. CONCLUSION: Our study showed that serum periostin levels were decreased in viral infection-induced exacerbations and increased in the presence of eosinophilia independent from atopy and it can help to differentiate eosinophilia even if the patient is under long-term systemic steroid therapy. Also, serum IL-13 levels may reflect peripheral eosinophilia in patients without long term systemic steroid use.

Frequency of peripheral blood eosinophilia and obstructive airway disease in sarcoidosis.

BACKGROUND: There is limited information about peripheral blood eosinophilia (PBE) and airway obstruction in sarcoidosis. Since pulmonary sarcoidosis affects the airways, it is often confused with asthma. The aims of the study are to investigate airway obstruction and PBE in sarcoidosis patients and to examine the similarity of clinical presentation with asthma. METHODS: The patients matching the ATS/ERS/WASOG diagnosis criteria and were between 18 and 80 years of age were included consecutively between 2018 and 2020. Other diseases causing granulomas were excluded. RESULTS: A total of 84 patients were included of which 26 (31%) had a PBE level of ≥300 µL with no significant difference seen between sarcoidosis stage and PBE (p > 0.05). A significant (p < 0.05) decrease was only seen in FEV1 as the stage of sarcoidosis progressed. Respectively 31 (36.9%), 12 (14.3%) and 4 (4.8%) patients had an obstructive, restrictive and mixed respiratory function disorder. Twenty-four (28.6%) subjects with sarcoidosis had history of asthma. Spring fever, eczema, and skin/nose allergy were noticed in 17 (20.2%) of the patients. DISCUSSION: Mild PBE may be seen in sarcoidosis. Patients applying with PBE, airway obstruction, bronchial hyperreactivity along with spring fever, eczema, skin/nose allergy, wheezing, chest tightness, shortness of breath and cough may be also evaluated in terms of sarcoidosis.

Effectiveness of mepolizumab therapy on symptoms, asthma exacerbations, steroid dependence, and small airways in patients with severe eosinophilic asthma

Background/aim: The efficacy of mepolizumab has been largely demonstrated in clinical trials in patients with severe eosinophilic asthma (SEA). However, reports on experience with mepolizumab in a real-life cohort are limited. Moreover, data about the effectiveness of mepolizumab on small airways is scarce. This study evaluated the effectiveness of mepolizumab therapy on symptoms, asthma exacerbations, blood eosinophils, steroid dependence, and small airways in a real-life cohort of patients with SEA. Materials and methods: We retrospectively analyzed patients with SEA who were receiving fixed-dose mepolizumab. The effects of mepolizumab on clinical, laboratory, functional parameters were evaluated at 12th, 24th, and 52nd weeks. Small airways were assessed with the FEF 25-75. Results: A total of 41 patients were enrolled in the study. Mepolizumab significantly reduced asthma exacerbation rates, reduced mOCS dose, and improved asthma control test (ACT) scores at 12th, 24th, and 52nd weeks. However, we found no significant changes in FEV1 and FEF25-75 values at baseline, 12th, 24th, and 52nd weeks (78.9 ± 23.3%, 82.9 ± 23.4%, 81.9 ± 23.9%, and 78.9 ± 23.5% for FEV1; 45.1 ± 23.1%, 48.8 ± 23.5%, 48.7 ± 23.1%, and 41.0 ± 20.1% for FEF25-75, respectively) Conclusion: In this study, mepolizumab significantly improved all outcomes (symptom scores, asthma exacerbations, OCS sparing, and blood eosinophils) except functional parameters. Still, despite the dose reduction in mOCS dosage, no significant deterioration was observed in FEV1 and FEF25-75 values.

Frequency of peripheral blood eosinophilia and obstructive airway disease in sarcoidosis

Background/aim: There is limited information about peripheral blood eosinophilia (PBE) and airway obstruction in sarcoidosis. Since pulmonary sarcoidosis affects the airways, it is often confused with asthma. The aims of the study are to investigate airway obstruction and PBE in sarcoidosis patients and to examine the similarity of clinical presentation with asthma. Materials and methods: The patients matching the ATS/ERS/WASOG diagnosis criteria and were between 18 and 80 years of age were included consecutively between 2018 and 2020. Other diseases causing granulomas were excluded. Results: A total of 84 patients were included of which 26 (31%) had a PBE level of ≥300 µL with no significant difference seen between sarcoidosis stage and PBE (p > 0.05). A significant (p < 0.05) decrease was only seen in FEV1 as the stage of sarcoidosis progressed. Respectively 31 (36.9%), 12 (14.3%) and 4 (4.8%) patients had an obstructive, restrictive and mixed respiratory function disorder. Twenty-four (28.6%) subjects with sarcoidosis had history of asthma. Spring fever, eczema, and skin/nose allergy were noticed in 17 (20.2%) of the patients. Conclusion: Mild PBE may be seen in sarcoidosis. Patients applying with PBE, airway obstruction, bronchial hyperreactivity along with spring fever, eczema, skin/nose allergy, wheezing, chest tightness, shortness of breath and cough may be also evaluated in terms of sarcoidosis.

Biologics for oral corticosteroid-dependent asthma.

Background: Oral corticosteroid (OCS) dependent asthma is one of the severe asthma phenotypes that requires personalized treatment. Objective: To review the role of biologic treatments in OCS-dependent asthma. Methods: A nonsystematic review was performed of emerging multiple novel biologics for potential treatment of OCS-dependent asthma. Results: The serious adverse effects of OCS can be seen as a result of their regular long-term administration. Anti-interleukin (IL) 5 (mepolizumab), anti-IL-5R (benralizumab), and anti-IL-4Rα (dupilumab) are the therapies of choice for OCS-dependent severe asthma. Results of studies showed the efficacy of mepolizumab, benralizumab, and dupilumab, especially in patients with the OCS-dependent severe eosinophilic asthma phenotype and with nasal polyps. Dupilumab may be the therapy of choice of monoclonal antibodies in cases of moderate-severe atopic dermatitis accompanied by OCS-dependent severe asthma. For reslizumab and omalizumab, placebo controlled double-blind studies conducted with OCS-dependent patient populations are needed. Conclusion: Biologics are effective in the "OCS-dependent asthma" phenotype as add-on therapy. It seems that chronic OCS use in OCS-dependent asthma will be replaced by biologic agents that specifically target type 2 inflammation, along with a much better safety profile. However, real-life studies that compare these biologics in OCS-dependent severe asthma are urgently needed.

Horse allergen sensitivity and respiratory symptoms among horse farm workers

Background/aim: Sensitivity and symptoms related to animal proteins have been investigated in various occupational groups. However, data from horse farm workers are limited. We aimed to determine horse allergen sensitivity in the horse farm workers, and to evaluate its relationship with respiratory symptoms and functional parameters. Materials and methods: A total of 110 subjects were enrolled in the study. The study group consisted of 80 horse farm workers. Face-to-face surveys, skin prick tests (SPT), and pulmonary function tests (PFT) were performed in the study group. Control group consisted of 30 healthy subjects. SPT and PFTs were also performed for control group. The SPT test results of the horse farm workers were compared with the SPT results provided from the medical records of 1376 subjects who admitted to the outpatient clinic with respiratory symptoms. Results: Atopy rate was significantly higher in horse farm workers than in healthy subjects (41% and 13%, respectively; P = 0.008). Horse allergen sensitivity was positive 8/80 (10%) in horse farm workers, 0/30 in healthy subjects, and 32/1376 (2%) in medical records of subjects who were admitted to the outpatient clinic with respiratory symptoms. (P = 0.07, P = 0.001, respectively). There was no statistically significant relationship between respiratory symptoms and horse allergen sensitivity in horse farm workers (P = 0.67). However, mean FEV1 ratios were lower in horse farm workers with horse allergen sensitivity than healthy subjects (88.6% ± 17.9, 103.7 ± 10, P = 0.031, respectively). Conclusion: Atopy and animal allergen sensitization were significantly higher in horse farm workers, suggesting the relationship between the intensity of specific allergen exposure and the sensitization to this specific allergen.