Vol 12, No 3 (2026)
- Year: 2026
- Published: 21.05.2026
- Articles: 16
- URL: https://journals.eco-vector.com/2412-4036/issue/view/15226
ORIGINAL STUDIES
Oxidative stress indexes as potential biomarkers of chronic obstructive pulmonary disease activity
Abstract
A key innovation of the Global Initiative for Chronic Obstructive Pulmonary Disease (GOLD) in 2026 became the concept of “COPD activity”. Increasing of disease activity leads to disease progression, and assessing this parameter requires searching for specific biomarkers.
The aim: to evaluate the value of 8-isoprostane and melatonin as biomarkers of COPD activity.
Material and methods. One hundred patients in the acute phase of COPD (69 males and 31 female, clinical group E, mean age 60.5 [52.5; 68.5] years) were examined. Changes in salivary melatonin and serum 8-isoprostane levels were assessed. A correlation analysis was made between these biomarkers and the clinical and functional parameters of patients, including the frequency of hospitalizations after one year.
Results. A direct correlation was established between salivary melatonin levels and forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate (PEF), and an inverse correlation was found with the modified mMRC score. Serum 8-isoprostane levels were inversely correlated with the six-minute walk test results and spirometry parameters – FVC, FEV1, and peak expiratory flow rate 25, 50, and 75% (MOC25, MOC50, and MOC75). A direct correlation was found between 8-isoprostane concentrations and CAT and mMRC scores. By day 10, a decrease in 8-isoprostane levels and an increase in melatonin levels were observed. These results indicate the oxidant properties of 8-isoprostane and the antioxidant activity of melatonin. After one year of follow-up, statistically significant associations were found between the levels of these biomarkers and the frequency of hospitalizations.
Conclusion. The obtained data confirm that 8-isoprostane and melatonin may serve as promising biomarkers for monitoring COPD activity.
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Сharacteristics of respiratory dysfunction in patients with myasthenia gravis based on a comprehensive functional study
Abstract
Myasthenia gravis (MG) is an autoimmune disease in which respiratory muscle weakness is manifesting itself as a life-threatening condition. However, data on comprehensive assessment of respiratory function using modern methods are rare.
The aim: to study the prevalence and nature of respiratory dysfunction in patients with MG.
Material and methods. A cross-sectional study included 66 patients (21 male and 45 females) with MG. The mean age of the participants was 57.0 ± 17.9 years, and the median disease duration was 8 [4; 12] years. Patients underwent a 6-minute walk test (SMWT), mMRC dyspnea estimation, spirometry, body plethysmography, pulse oscillometry, measurement of maximal inspiratory and expiratory pressures (MIP, MEP), and diffusing capacity of lungs (DLCO).
Results. The most common disorder was a decrease in respiratory muscle strength: MIP < 80% in 65.6%, MEP < 80% – 50.8% in the studied patients with MG. Restrictive disorders according to spirometry data (forced vital capacity < 80%) were detected in 22.7%, according to body plethysmography data (total lung capacity < 80%) – in 17.7% of patients, obstructive disorders (the ratio of forced expiratory volume in 1 second to forced vital capacity < 70%) – in 18.2% of participants. Hyperinflation (the ratio of residual volume to total lung capacity >40%) was noted in 24.2%, a decrease in inspiratory capacity < 80% – in 41.9% of patients. Among patients, in whom with pulmonary diffusion capacity assessment was performed (n = 7), decreased DLCO and alveolar volume were observed in 85% of cases, and decreased KCO (the ratio of DLCO to alveolar volume) in 28.6%. According to pulse oscillometry data (n = 24), increased respiratory resistance at 5 Hz (R5 >120%) was recorded in 50% of patients, and an increase in resonance frequency (Fres >100%) was observed in 58.3% of participants. Decreased exercise tolerance (SMWT < 500 m) was observed in 42.4%, clinically significant dyspnea (mMRC ≥2) in 25.7%, significant symptoms according to MG-ADL (≥6 points) in 34.8% of patients.
Conclusion. The study results demonstrate a high frequency of functional disorders in patients with myasthenia gravis. Obtained data substantiate the need to integrate pulmonary screening into the standard care of patients with neuromuscular disorders.
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An elderly patient with bronchial asthma in real-time medical practice
Abstract
The relevance of this study is due to the lack of characteristic of elderly patients with bronchial asthma (BA) taking into account comorbidity in real-time medical practice.
The aim: to characterize patients over 65 years of age with BA in a real-time clinical settings.
Material and methods. A multicenter, cross-sectional, retrospective cohort study was performed. It involved 565 patients with BA, who were divided into two age groups: Group 1 (main group) – patients over 65 years of age (n = 423), Group 2 (comparison group) – patients aged 45–65 years (n = 142). The analysis included a review of outpatient records, medical history, assessment of the Charlson Comorbidity Index, determination of asthma control, and a study of pharmacotherapy.
Results. The study revealed significant differences in the clinical course of BA across different age groups. Patients over 65 years of age were found to have higher comorbidity (Charlson index 4.09 ± 1.40 vs. 1.75 ± 1.49 in the 45–65 age group), later disease onset (age at diagnosis 57.95 ± 14.2 vs. 44.78 ± 11.35 years), and higher doses of inhaled glucocorticosteroids (598.29 vs. 494.91 mcg/day). Cluster analysis of 565 patients revealed significant characteristic peculiarities of elderly patients with BA.
Conclusion. The study demonstrates the need for a differentiated approach to the management of patients with bronchial asthma in different age groups. The identified differences in BA clinical course require special attention to elderly patients, taking into account the higher comorbidity and later disease diagnosis in this group.
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Parameters of hemodynamics in patients with chronic obstructive pulmonary disease, measured by oscillometry
Abstract
Heart and pulmonary diseases have common risk factors and pathological processes that contribute to progressive impairment of respiratory function and hemodynamics. Therefore, early detection of the risk factors of cardiovascular diseases (CVD) development in patients with chronic obstructive pulmonary disease (COPD) is essential.
The aim: to study hemodynamic parameters using volumetric compression oscillometry in patients with COPD.
Material and methods. The study included 133 subjects aged 40 to 64 years (mean age 56 [52; 60] years). Study group consisted of 109 patients with COPD, and the control group consisted of 24 apparently healthy individuals. The study groups were comparable for gender (p = 0.341), age (p = 0.055), and smoking status. Hemodynamic parameters were assessed using volumetric compression oscillometry by means of the APCO-8-RIC-M device.
Results. Patients with COPD, comparatively with the control group, had higher cardiac output (5.25 [4.0; 5.6] vs. 4.3 [4.4:4.5] L/min, p = 0.002) and lower total peripheral vascular resistance (1392 [1243; 1671] vs. 1729 [1637; 1735] dyn × s × cm-5, p = 0.002). An analysis of hemodynamic parameters depending on the severity of COPD also revealed that higher disease severity was associated with higher cardiac output, cardiac index, stroke volume, and stroke index (in all cases, p < 0.001).
Conclusion. As measured by volumetric compression oscillometry, the presence of COPD in a patient affects cardiac output and total peripheral vascular resistance. With increasing COPD severity, hemodynamic parameters measured by volumetric compression oscillometry are getting to be worse.
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Comparison of the informative value of six-minute walk test and one-minute sit-to-stand test in patients with previous myocardial infarction
Abstract
Six-minute walk test (SMWT) is a simple and informative method for assessing functional status of patients with cardiovascular diseases. However, SMWT has certain limitations in performance, necessitating the search for a simple and easily reproducible alternative. The one-minute sit-to-stand test (1STST) is proposed to be as such kind of the test.
The aim: to compare the results of SMWT and 1STST performed in patients with myocardial infarction in anamnesis (MI).
Material and methods. The cross-sectional, observational, prospective study included 61 patient with a history of MI and dyspnea on exertion. In addition to a general clinical examination, all participants underwent SMWT and 1STST.
Results. Average number of meters walked in the SMT was 485.69 ± 103.13 m, and the average number of repeats in 1STST was 20.50 (17.00–24.00). A direct correlation was found between the results of the exercise tests: fewer meters walked in SMWT were expected to be associated with fewer repeats in 1STST (r = 0.616, p < 0.001). A comparison of the TSS and 1STST results revealed direct correlations between heart rate, Borg scale scores, oxygen saturation (SpO2) levels at the end of the tests, ΔSpO2, and Δ Borg scale scores. An inverse correlation was found between SMWT and 1STST results and age, as well as direct correlations between test results and arm strength. The “Physical health” quality of life index was inversely associated with Δ Borg scale scores during the SMWT and 1STST and the scores on this scale at the end of the tests.
Conclusion. SMWT and 1STST methodics are comparable in their informativeness for assessing functional status in patients with previous myocardial infarction. 1STST can be proposed as a quick and easy alternative to the SMWT test.
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Digital technologies for identifying risk factors for chronic non-communicable diseases among rural residents in Altai Krai
Abstract
Increasing of life expectancy by reducing mortality among working-age people is a priority for Russian state policy. The main threat comes from chronic non-communicable diseases (NCDs), the prevalence of which is associated with behavioral and metabolic risk factors. Regions with a high proportion of rural population, where access to healthcare is limited, pose a particular problem.
The aim: to analyze the implementation of digital risk factor screening results in rural residents.
Material and methods. A cohort study included 403 patients (135 male and 268 female individuals, average age 48.7 ± 9.7 years) from the rural population of Zonalny district of Altai Krai. Risk factors for NCDs development were assessed using the “Risk modifier” digital software. Anthropometric indicators (height, weight, body mass index, and blood pressure) were also assessed.
Results. According to the results of examination, patients in Zonalny district of Altai Krai were identified as having the following risk factors for NCDs: insufficient physical activity (91.7%), smoking (74.2%), poor diet (67.7%), psychosocial factors (51.4%), and excessive alcohol consumption (5.2%). The majority of those examined (75.9%) had elevated cholesterol levels, 29.0% were overweight, 33.9% were obese, 25.6% had elevated blood pressure, and 13.4% had elevated glucose levels.
Conclusion. This study was the first to analyze the prevalence of risk factors associated with chronic noncommunicable diseases in rural areas of Altai Krai using “Risk modifier” programme. The implementation of this digital tool allows for the automation and optimization of the first stage of preventive medical examination. A collective profile of risk factors was created, their gender and age peculiarities among the population of the Zonalny District were identified.
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Life quality and treatment adherence in elderly outpatients with heart failure: Data from an observational study
Abstract
Low treatment adherence is a pressing issue that significantly impacts the life quality (LQ) of multimorbid patients.
The aim: to assess LQ and treatment adherence in elderly outpatients with chronic heart failure (CHF).
Material and methods. The study included 90 outpatients – 32 male and 58 female individuals (median age 74 [67; 84] years). They were divided into two groups based on the presence of CHF: patients with this condition (n = 53) and those without it (n = 37). Additional analysis was made in the age subgroups 60–74 and ≥ 75 years. Various scales and questionnaires were used for clinical estimation of patients, and the Short Form-36 (SF-36) questionnaire was used to assess LQ. Treatment adherence was determined using the National Society for Evidence-Based Pharmacotherapy (NSEBP) scale.
Results. Participants with CHF showed a more pronounced decrease in LQ indexes comparatively to patients without CHF. The most significant differences were found in SF-36 questionnaire scales reflecting the physical component of health, the total index of which was lower in the CHF group across all age subgroups. That indicates the leading role of functional limitations in the decline of LQ in this patient category (p < 0.05). Logistic regression analysis revealed that deterioration in functional mobility, assessed by the time it takes to complete the “Get-up and Go” test, was associated with a reduced probability of full adherence to medication therapy (odds ratio 0.795; 95% confidence interval: 0.647–0.976; p = 0.029).
Conclusion. Elderly and senile patients with CHF have a more pronounced decline in LQ parameters comparatively to patients without CHF, primarily due to physical functioning deterioration. CHF is also associated with a higher prevalence of geriatric disorders and reduced functional mobility. The obtained data indicate a possible role of functional limitations in the formation of treatment adherence and highlight the need for a comprehensive assessment of geriatric factors in the management of older patients having CHF.
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REVIEWS
Pregnancy and sarcoidosis: From eventual to desired
Abstract
Impact of sarcoidosis on the course and outcome of pregnancy is often a difficult question for physicians, but it has been found that reproductive function is rarely impaired by this disease. Current article presents a review of recent literature, which presents compelling arguments in favor of the mutually beneficial effects of pregnancy and sarcoidosis, based on data on immune status and the balance of female sex hormones. Epidemiological data and clinical cases from various countries are analyzed. An analysis of relevant scientific sources allows us to conclude that the risk to the fetus in a pregnant female patient with sarcoidosis exists only in cases of severe organ failure and the use of teratogenic drugs.
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Pneumonia: Current state of the problem and prospects
Abstract
Pneumonia is the most common and life-threatening respiratory disease and represents a pressing medical and social challenge. This article offers a comprehensive analysis of the current state of the problem, drawing on the achievements and principles of the Russian scientific school established by academician N.S. Molchanov and based on an etiopathogenetic approach to the diagnosis and treatment of pneumonia. The work of N.S. Molchanov's scientific school contributed to the transformation of the existing understanding of pneumonia and the development of its modern definition, reflecting the latest scientific advances. The proposed current model of pneumonia pathogenesis places particular emphasis on the lung microbiome and the metabolic state of the macroorganism, expanding our understanding of the mechanisms of disease development. Particular attention is paid to improving the diagnostic algorithm, including the use of modern sequencing methods. Current principles for selecting empirical etiotropic therapy, as well as the role and place of glucocorticoids in the treatment of patients with severe pneumonia, are discussed.
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CLINICAL CASES
A case of myxomatous degeneration of mitral valve leaflets complicated by chorda rupture
Abstract
Acute mitral valve insufficiency is a common condition encountered by physicians of various specialties, including cardiologists, therapists, rheumatologists, and cardiac surgeons. The underlying causes of the disease are varied, and the severity of the condition, caused by the development of acute left ventricular failure, requires early diagnosis and urgent care, including surgical intervention. Current article presents a clinical case of myxomatous degeneration of the mitral valve leaflets in a 41-year-old patient, complicated by chordal rupture with the development of acute mitral regurgitation, which resulted in death.
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LECTURES
Pharmacotherapy of non-productive cough: What should a therapist know?
Abstract
Dry (non-productive) cough is one of the most common reasons for seeking medical care. Undoubtedly, to eliminate cough syndrome, it is first and foremost necessary to directly address its etiology. However, in some cases, the cause remains unclear for a long time, or an excruciating dry cough causes significant discomfort to the patient. It is worth noting that in most cases, a dry cough resolves on its own, without the need for antitussive medications. The main indications for antitussive therapy include pneumothorax, postoperative period, pertussis, a nagging cough that significantly worsens the patient's condition, and preparation for bronchoscopy performing. The most effective and safe antitussive medications currently used in clinical practice are levodropropizine, prenoxdiazine, and butamirate.
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HELPING PRACTICING PHYSICIAN
Small airway involvement in bronchial asthma and chronic obstructive pulmonary disease: From understanding pathophysiology to optimizing therapy
Abstract
Small airway involvement (SAI) is a clinically important yet often underestimated component of bronchial asthma and chronic obstructive pulmonary disease (COPD). In this review, SAI is considered both as small airways disease, associated with structural and morphological changes in the bronchioles, and as small airway dysfunction, manifested by peripheral airflow obstruction, ventilation heterogeneity, premature expiratory airway closure, air trapping, and dynamic hyperinflation. A mismatch between symptom burden and standard spirometric indices is frequently related to small airway dysfunction, which is only partly captured by FEV1. The review summarizes current concepts of small airway pathophysiology in asthma and COPD, outlines a diagnostic approach using functional tests and imaging modalities, and substantiates therapeutic strategies that take drug deposition in the peripheral bronchial tree into account. The role of comorbidities and practical aspects of patient management in primary care are addressed separately.
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ACTUAL ISSUES OF PHARMACOTHERAPY AND PREVENTIVE TREATMENT
Сlinical efficacy of erdosteine in chronic obstructive pulmonary disease: More than just a mucolytic
Abstract
Exacerbations of chronic obstructive pulmonary disease (COPD) lead to a rapid decline in lung function, health deterioration, hospitalization, and increased disease-related mortality. Use of mucoactive agents as a part of combination therapy can reduce the frequency of COPD exacerbations. This article systematizes published data on the safety and clinical efficacy of erdosteine as an additional remedy to standard COPD therapy. Erdosteine is an orally administered mucoactive drug with antioxidant and anti-inflammatory properties. Its use reduces the adhesion of pathogenic bacteria and increases the efficacy of antibacterial drugs. An important peculiarity of erdosteine is its potential use both as a preventative therapy for COPD exacerbations and as a modifier of exacerbation symptoms. During COPD exacerbations, adjunctive use of this drug is accompanied by rapid relief of clinical manifestations and a shortened acute phase of the disease. Long-term use of erdosteine in patients with COPD has demonstrated its superior efficacy and safety comparatively to other mucolytics, with a reduction in exacerbation frequency and an increase in the time to first exacerbation. These aspects are highly actual for the combination therapy of COPD patients in terms of the prevention of exacerbations and their treatment.
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Innovations in pathogenetic therapy of acute respiratory viral infection in clinical guidelines
Abstract
The current clinical guidelines "Acute respiratory viral infection (ARVI) in adults" in 2025 focus on the importance of pathogenetic and symptomatic therapy of respiratory viral infections, which are the most common cause of seeking medical help. In addition to intoxication syndrome, patients with ARVI are concerned about catarrhal respiratory syndrome, manifested by a runny nose, sometimes conjunctivitis, and cough, which can significantly impair the quality of life. Treatment of severe cough with antitussive agents is necessary in case of its high intensity, when such cough interferes with the patient’s vital activity. Treatment of wet cough consists in prescribing mucoatives. Codelac® Broncho is a combined mucolytic agent with high efficacy and safety profiles in patients with ARVI.
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Third-generation oral cephalosporins in acute tonsillopharyngitis treatment in outpatient practice: Focus on cefixime
Abstract
The significance of upper respiratory tract infections, due to their high frequency and the risk of severe course and complications, determines high demands to the efficacy and safety of antibiotics prescribed for acute tonsillopharyngitis and acute sinusitis. For many years, aminopenicillins and macrolides were the main medications of their treatment. While the first ones are still remaining the drugs of choice, the fact of steadily increasing resistance of S. pneumoniae and S. pyogenes to macrolides and the near-total resistance to them of H. influenzae necessitate the search for additional options for empirical antibiotic therapy for these conditions. Third-generation cephalosporins, including cefixime, offer a viable alternative to the above mentioned drugs. Cefixime is characterized by high activity against the main pathogens that cause upper respiratory tract infections, including β-lactamase-resistant strains of H. influenzae. Administration of cefixime as dispersible tablets improves efficacy, tolerability, convenience, and adherence to therapy. An additional benefit of this drug is its suitability for use during pregnancy.
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ACTIVITIES OF RSMSIM
Digest of interregional scientific and practical events under the aegis or with the participation of RSMSIM (March – April 2026)
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