[Justification of the need to normalize vitamin D status for immunoprophylaxis].

Currently, there is an increase in the resistance of microorganisms to the available arsenal of antimicrobial drugs, which makes it necessary to maintain and stimulate the body's own immune-protective properties. The main extraskeletal effect of vitamin D activity is associated with the homeostasis of the immune system. The role of vitamin D in reducing the risk of infection with infectious agents has been studied for a long time. Literature search on the effective use of vitamin D for immunoprophylaxis was carried out in Scopus, Web of Science, PubMed, clinicaltrials.gov databases over the past 10 years for related keywords: vitamin D, immunoprophylaxis. Vitamin D stimulates the synthesis of antimicrobial peptides, cathelicidins and defensins, which exhibit broad-spectrum activity against viruses, bacteria and fungal infections; reduces the concentration of pro-inflammatory cytokines; increases the concentration of anti-inflammatory cytokines. Vitamin D is also involved in cell differentiation, maturation and proliferation of immune cells. The article presents the literature review in order to justify additional intake of vitamin D in case of diagnosis of its deficiency and insufficiency for the purpose of immunoprophylaxis in children and adults, especially in risk groups (elderly age, pregnant women, patients with chronic diseases of respiratory, endocrine and urinary systems, gastrointestinal tract, and infectious diseases). Inclusion of vitamin D in the diet as a dietary supplement, as well as fortification of products with it, can be an effective measure to reduce the risk of both morbidity and mortality, especially during the period of quarantine measures.

Identifying the incidence of respiratory complications following diaphragmatic cytoreduction and hyperthermic intraoperative intraperitoneal chemotherapy.

INTRODUCTION: In patients with peritoneal carcinomatosis (PC), the incidence of respiratory complications following cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) is not well established. We aimed to describe the center-specific incidence and patient characteristics associated with respiratory complications following CRS and HIPEC in patients receiving treatment for PC. MATERIALS AND METHODS: We used the University Hospital of Arrixaca study database to identify patients who underwent CRS and HIPEC for PC. Patients who experienced a post-operative respiratory complication were categorized according to the National Cancer Institute-Common Terminology Criteria for Adverse Events. Multivariable regression methods were used to identify independent risk factors for developing a respiratory complication following CRS and HIPEC. RESULTS: Between 2008 and 2017, we identified 247 patients who underwent CRS and HIPEC for PC. A total of eight patients (3.2%) were categorized as having a post-operative respiratory complication. A diaphragmatic peritonectomy and a PC index of > 14 were identified as independent risk factors for developing a respiratory complication. Radiographic evidence of a pleural effusion was identified in 72 patients who had CRS of the diaphragmatic peritoneum; however, only 6 (8.3%) of these patients required pleural drainage. CONCLUSIONS: Only 3.2% of patients developed a symptomatic respiratory complication following CRS and HIPEC. A pleural effusion was identified in almost all patients requiring a diaphragmatic peritonectomy as part of their CRS; however, less than one in ten of these patients required pleural drainage. Prophylactic insertion of a pleural drainage tube is, therefore, not indicated following CRS and HIPEC.

Respiratory Health Among Hand Pickers in Primary Coffee-Processing Factories of Ethiopia.

OBJECTIVE: The aim of this study was to assess chronic respiratory symptoms and lung function among female hand pickers. METHODS: A total of 374 hand pickers exposed to coffee dust and 175 female controls from water bottling factories were included. The symptoms were assessed using a standardized questionnaire. Personal total dust exposure and lung function tests were performed. RESULTS: Hand pickers experienced a higher dust exposure, displayed a higher prevalence ratio for cough [prevalence ratio (PR) = 3.0, 95% confidence interval (95% CI): 1.4 to 6.2] and work-related shortness of breath (PR = 2.5, 95% CI: 1.1 to 5.6), and had a lower FEF25-75 than controls. Hand pickers without tables had a significantly higher prevalence ratio of cough with sputum (PR = 3.9, 95% CI: 1.6 to 9.5) and lower forced vital capacity, forced expiratory volume in 1 second, and mean forced expiratory flow between 25% and 75% of the FVC than hand pickers with tables. CONCLUSION: Hand pickers show a range of adverse symptoms and lung function impairments that warrant efforts to improve working conditions.

Clinical updates in aspirin-exacerbated respiratory disease.

Background: Aspirin-exacerbated respiratory disease (AERD), a syndrome that includes asthma, recurrent nasal polyps, and pathognomonic reactions to aspirin and other nonselective cyclooxygenase inhibitors, is still not fully understood and lacks specific disease-modifying therapeutic options. Objective: To review the most recent clinical updates in the evaluation and treatment of patients with AERD. Methods: Recent clinical research studies relevant to patients with AERD were reviewed. Results: Multiple new biologics are available for the treatment of severe asthma, several of which have been specifically studied and determined to be efficacious in the subset of patients with asthma who are also aspirin sensitive. Zileuton continues to be underprescribed for AERD and is considered to be very effective by many patients with AERD. Dietary modifications toward a diet that is high in omega-3 fatty acids and low in omega-6 fatty acids can reduce the production of the inflammatory leukotriene and prostaglandin D2 lipids and help improve symptoms for patients with AERD. Conclusion: A lack of definitive understanding of the causative mechanisms of AERD and the absence of an AERD-specific patient-reported outcome measure are obstacles that remain in this field, but much progress has been made over the past decade.

From systems biology to P4 medicine: applications in respiratory medicine.

Human health and disease are emergent properties of a complex, nonlinear, dynamic multilevel biological system: the human body. Systems biology is a comprehensive research strategy that has the potential to understand these emergent properties holistically. It stems from advancements in medical diagnostics, "omics" data and bioinformatic computing power. It paves the way forward towards "P4 medicine" (predictive, preventive, personalised and participatory), which seeks to better intervene preventively to preserve health or therapeutically to cure diseases. In this review, we: 1) discuss the principles of systems biology; 2) elaborate on how P4 medicine has the potential to shift healthcare from reactive medicine (treatment of illness) to predict and prevent illness, in a revolution that will be personalised in nature, probabilistic in essence and participatory driven; 3) review the current state of the art of network (systems) medicine in three prevalent respiratory diseases (chronic obstructive pulmonary disease, asthma and lung cancer); and 4) outline current challenges and future goals in the field.

Exposure to nonmicrobial N-glycolylneuraminic acid protects farmers' children against airway inflammation and colitis.

BACKGROUND: Childhood exposure to a farm environment has been shown to protect against the development of inflammatory diseases, such as allergy, asthma, and inflammatory bowel disease. OBJECTIVE: We sought to investigate whether both exposure to microbes and exposure to structures of nonmicrobial origin, such as the sialic acid N-glycolylneuraminic acid (Neu5Gc), might play a significant role. METHODS: Exposure to Neu5Gc was evaluated by quantifying anti-Neu5Gc antibody levels in sera of children enrolled in 2 farm studies: the Prevention of Allergy Risk factors for Sensitization in Children Related to Farming and Anthroposophic Lifestyle (PARSIFAL) study (n = 299) and the Protection Against Allergy Study in Rural Environments (PASTURE) birth cohort (cord blood [n = 836], 1 year [n = 734], 4.5 years [n = 700], and 6 years [n = 728]), and we associated them with asthma and wheeze. The effect of Neu5Gc was examined in murine airway inflammation and colitis models, and the role of Neu5Gc in regulating immune activation was assessed based on helper T-cell and regulatory T-cell activation in mice. RESULTS: In children anti-Neu5Gc IgG levels correlated positively with living on a farm and increased peripheral blood forkhead box protein 3 expression and correlated inversely with wheezing and asthma in nonatopic subjects. Exposure to Neu5Gc in mice resulted in reduced airway hyperresponsiveness and inflammatory cell recruitment to the lung. Furthermore, Neu5Gc administration to mice reduced the severity of a colitis model. Mechanistically, we found that Neu5Gc exposure reduced IL-17+ T-cell numbers and supported differentiation of regulatory T cells. CONCLUSIONS: In addition to microbial exposure, increased exposure to non-microbial-derived Neu5Gc might contribute to the protective effects associated with the farm environment.

Morbidity pattern of traditional Chinese medicine primary care in the Hong Kong population.

Primary care manages >90% of illnesses requiring medical services in Hong Kong, in which 9,513 registered Chinese medicine practitioners (CMPs) provide 8.2% of the consultations. This is the first study aimed to determine the morbidity pattern in different Traditional Chinese Medicine (TCM) primary care settings in Chinese population. 55,312 patients' encounters were classified by the International Classification of Primary Care-2 (ICPC-2) from 260 of CMPs. Mean patient age was 50.5 years, with more females than males (67.0% vs 33.0%). Most patients consulted CMPs for chronic (64% vs 33.7%) rather than acute conditions. Among the 30% of patients, hypertension (49.5%) or diabetes (18.5%) were the most common co-morbidity. The most common problems presenting to CMP were respiratory (24.9%), musculoskeletal complaints (22.7%), cough (11.7%), and lower back pain (6.6%). To our knowledge, this was the first study permitting direct comparison with that presenting to Western medicine (WM) primary care by ICPC-2 systems. The results confirmed the role of CMP in primary care for musculoskeletal or chronic illnesses that they may have also received conventional WM treatment. We recommend greater effort and more resources should be invested to promote interdisciplinary communication to ensure safety and synergy of TCM and WM in primary care.

Psychosocial and respiratory disease related to severe bladder dysfunction and non-monosymptomatic enuresis.

OBJECTIVE: Complicated bladder dysfunctions (BD) (associated with infections/urological complications or irresponsive to treatment) are a small proportion of all cases, but are highly morbid, clinically and psychosocially. Our aim is to describe a cohort of complicated pediatric BD, using subgroup analysis to compare presentations and responses to treatment among genders, age groups, and patients with or without non-monosymptomatic enuresis (NME). We also relate severe BD to other health conditions or to social/behavioral problems and report treatment results. METHOD: Thirty-five cases of complicated BD were reviewed. Neurogenic bladders and anatomical urological problems were excluded. Justifications for referral, comorbidities, and social aspects/familial dynamics were studied. Overactive bladders were primarily treated with oxybutynin. Transcutaneous parasacral neuromodulation was used in case of insufficient response or unbearable side effects. For infrequent voiders, timed voiding and transcutaneous neuromodulation were counseled. RESULTS: Incontinence/enuresis were the motives for referral in only a third of the cases. UTI (42.9%) was the main reason for referral. Hydronephrosis was observed in 8.6% of the children. Respiratory/ENT problems, obesity, and precocious puberty were highly prevalent. Schooling problems and neuropsychiatric disease were common. Social problems were common. Five patients presented urological problems secondary to BD (hydroureteronephrosis, VUR, trabeculated bladder). Twenty percent of cases required high anticholinergic doses and 37.1% transcutaneous electrostimulation. Eight (22.9%) patients abandoned but later resumed therapy, and 14.6% did not follow treatment. Boys tended to be older than girls and presented NME, respiratory, and behavioral problems more often, with a significant difference for asthma and anxiety/depression. Associated health problems and neuropsychiatric treatment tended to be more frequent among those presenting NME. Non-enuretic children tended to show better results from treatment (see Table). CONCLUSION: The social characteristics of our population (severe cases, socially deprived, very poor, not well educated, and with limited access to health care) determine a very specific sampling. Our research demonstrated that even severe cases of BD affecting socially deprived children may be treated, with adhesion to treatment and results comparable with other cohorts of BD, although the children need multidisciplinary attention and close follow-up. Boys, older children, and NME are more difficult to treat and often have other associated health and behavioral problems. Stress-related conditions were common in severe BD. A relatively high occurrence of precocious puberty was an unexpected finding in our research.

Mindfulness in people with a respiratory diagnosis: A systematic review.

OBJECTIVES: To describe how mindfulness is delivered and to examine the effect of mindfulness on health-related quality of life (HRQOL), mindful awareness and stress in adults with a respiratory diagnosis. METHOD: Five electronic databases were searched. Data were extracted and assessed for quality by two reviewers. RESULTS: Data were extracted from four studies. Interventions were based on Mindfulness-Based Stress Reduction and delivered by trained instructors. Recordings of mindfulness were provided for home-based practice. One study targeted the intervention exclusively to anxious individuals with a respiratory diagnosis. Adherence to mindfulness was poor. No effects were seen on disease-specific HRQOL (standardized mean difference (SMD)=-0.21 95% CI: -0.36 to 0.48, p=0.78), mindful awareness (SMD=0.09 95% CI: -0.34 to 0.52, p=0.68) or stress levels (SMD =-0.11 95% CI: -0.46 to 0.23, p=0.51). CONCLUSION: Mindfulness interventions, delivered to individuals with a respiratory diagnosis, varied widely in terms of delivery and the outcomes assessed making it difficult to draw any conclusions regarding its effectiveness.

Ensayo clínico aleatorizado de la comparación entre método de enseñanza tradicional y escenario simulado para la adquisición de competencias en el reconocimiento de signos de enfermedad respiratoria aguda en pacientes pediátricos / Randomized clinical trial to compare the traditional teaching method and the simulated-scenario teaching © 2015 FEM method in the acquisition of skills for the identification of acute respiratory disease signs in paediatric patients

INTRODUCCIÓN: La infección respiratoria aguda es un problema de salud pública en menores de 5 años; la detección e identificación tempranas de sus signos disminuye la mortalidad en este grupo de edad y es una meta de la formación médica. OBJETIVO: Comparar en estudiantes de medicina el método educativo tradicional y el escenario simulado para el reconocimiento de signos de enfermedad respiratoria aguda en niños de 2 meses a 5 años. SUJETOS Y MÉTODOS: Se realizó un ensayo clínico para estudiantes de medicina, aleatorizados en dos grupos: A (clase teórica y ayudas audiovisuales) y B (escenario simulado). El desenlace primario fue el desempeño en la evaluación global. Se realizó prueba de Mann-Withney Wilcoxon para comparación entre grupos y Mann-Withney Wilcoxon pareada para análisis intragrupo (antes y después de la intervención). RESULTADOS: Mediante prueba de Mann-Withney Wilcoxon pareada intragrupo pre y postintervención, el grupo A mostró mejor un desarrollo de competencias en el desenlace primario (p = 0,02) y en la evaluación global del escenario simulado (p = 0,04). El grupo B logró cambios significativos en el desenlace primario (p = 0,00), la anamnesis (p = 0,00) y la evaluación global del escenario simulado (p = 0,00). En la evaluación postintervención no se encontraron diferencias significativas en el desenlace primario ni secundario. CONCLUSIONES. La comparación postintervención entre los grupos A y B no mostró diferencias significativas en ninguna de las variables estudiadas entre ambos grupos

INTRODUCTION: The acute respiratory infection is a public health problem in children under 5 years of age. The early detection and identification of its signs reduces the mortality rates in these age groups and is an objective in medical education. AIM. To compare the traditional teaching method with the simulated-scenario teaching method in the acquisition of skills necessary to recognize respiratory distress in children between 2 months and 5 years of age by medical students. SUBJECTS AND METHODS: A clinical trial was done for medical students and they were divided into two randomized groups: group A which used the traditional teaching method and group B, which used the simulated-scenario method. The primary outcomes were seen in the global evaluation performances. A Mann-Withney Wilcoxon test was used for the comparison among groups and a paired Mann-Withney Wilcoxon test was used for the intra-group analysis (before and after the intervention). RESULTS: When using the paired Mann-Withney Wilcoxon intragroup test pre and post intervention, group A showed a better skill development in the primary outcome (p = 0.02) and the global evaluation in simulated scenario (p = 0.04). On the other hand, group B reached significant changes on the primary outcomes (p = 0.00), anamnesis (p = 0.00) and global evaluation with the simulated-scenario method (p = 0.00). It was observed that in the post-intervention evaluation there weren’t any significant differences between the primary and secondary outcomes. CONCLUSIONS: The post-intervention comparison between groups A and B didn’t show significant differences in the studied variables between both groups

Work-related symptoms among workers exposed to black tea dust.

BACKGROUND: Tea may be classified as unfermented green, semi-ferinented oolong and fermented black. All of these types are derived from Camellia sinensis, the Tea Plant, which contains the low molecular weight (LMW) agent Epigallocatechin gallate (EGCg), probably responsible for allergic reactions. The aim of our study was to asses the work-related allergic symptoms and IgE-mediated sensitivity among black tea packers. MATERIAL AND METHODS: Study groups comprised 26 black tea packers (group 1) and 20 office workers (group 2). A questionnaire, skin prick tests (SPTs) to common allergens and black tea, evaluation of specific IgE (asIgF) to Camellia sinensis and moulds, pre- and post-work-shift spirometry were performed. RESULTS: At least I symptom suggesting allergic disease was reported by 85% of the tea packers and 60% of the office workers. The most frequent positive results of SPTs were obtained with moulds (8%). A small decline in FE%1 (forced expiratory volume in I s) after the work shift was observed among tea packers sensitized to moulds. CONCLUSIONS: Although specific sensitization to black tea was not observed in our study groups, cough and skin symptoms were significantly more frequently among the tea packers than in office workers. The irritant impact on the airways and the skin of tea dust and/or sensitization to moulds contaminating tea leaves are being suspected.

Managing comorbidities in COPD.

Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity and mortality worldwide. Age and smoking are common risk factors for COPD and other illnesses, often leading COPD patients to demonstrate multiple coexisting comorbidities. COPD exacerbations and comorbidities contribute to the overall severity in individual patients. Clinical trials investigating the treatment of COPD routinely exclude patients with multiple comorbidities or advanced age. Clinical practice guidelines for a specific disease do not usually address comorbidities in their recommendations. However, the management and the medical intervention in COPD patients with comorbidities need a holistic approach that is not clearly established worldwide. This holistic approach should include the specific burden of each comorbidity in the COPD severity classification scale. Further, the pharmacological and nonpharmacological management should also include optimal interventions and risk factor modifications simultaneously for all diseases. All health care specialists in COPD management need to work together with professionals specialized in the management of the other major chronic diseases in order to provide a multidisciplinary approach to COPD patients with multiple diseases. In this review, we focus on the major comorbidities that affect COPD patients. We present an overview of the problems faced, the reasons and risk factors for the most commonly encountered comorbidities, and the burden on health care costs. We also provide a rationale for approaching the therapeutic options of the COPD patient afflicted by comorbidity.

AARC clinical practice guideline: effectiveness of nonpharmacologic airway clearance therapies in hospitalized patients.

Airway clearance therapy (ACT) is used in a variety of settings for a variety of ailments. These guidelines were developed from a systematic review with the purpose of determining whether the use of nonpharmacologic ACT improves oxygenation, reduces length of time on the ventilator, reduces stay in the ICU, resolves atelectasis/consolidation, and/or improves respiratory mechanics, versus usual care in 3 populations. For hospitalized, adult and pediatric patients without cystic fibrosis, 1) chest physiotherapy (CPT) is not recommended for the routine treatment of uncomplicated pneumonia; 2) ACT is not recommended for routine use in patients with COPD; 3) ACT may be considered in patients with COPD with symptomatic secretion retention, guided by patient preference, toleration, and effectiveness of therapy; 4) ACT is not recommended if the patient is able to mobilize secretions with cough, but instruction in effective cough technique may be useful. For adult and pediatric patients with neuromuscular disease, respiratory muscle weakness, or impaired cough, 1) cough assist techniques should be used in patients with neuromuscular disease, particularly when peak cough flow is < 270 L/min; CPT, positive expiratory pressure, intrapulmonary percussive ventilation, and high-frequency chest wall compression cannot be recommended, due to insufficient evidence. For postoperative adult and pediatric patients, 1) incentive spirometry is not recommended for routine, prophylactic use in postoperative patients, 2) early mobility and ambulation is recommended to reduce postoperative complications and promote airway clearance, 3) ACT is not recommended for routine postoperative care. The lack of available high-level evidence related to ACT should prompt the design and completion of properly designed studies to determine the appropriate role for these therapies.

Development of the clinic of pulmonology and allergy.

University Pulmology and Allergy Clinic was founded in 1975 when the Depertment of Internal Medicine, directed by Prof. Dr. Dimitar Arsov, later member of the Macedonian Academy of Sciencies and Arts, was divided into eight separate and independent clinics. The first head of the Pulmonology and Allergy Clinic was Prof. Dr. Ljubomir Kotevski. He had a very difficult goal: to establish and further develop the newly formed clinic. The Clinic flourished and became one of the leading Clinics in the Clinical Centre during the directorship of Prof. dr. Dejan Dokic.. He completely rebuilt and refurbished the Clinic, which became a modern Clinic providing excellent working conditions for the employees and, most importantly, provided a first class service to the patients. During his mandate he obtained a grant from the Japanese Government worth $1,000,000 which was used to obtain a new, modern and sophisticated medical equipment. Since the establishment of the clinic, many national and international scientific projects were carried out and many scientific papers were published as well as many monographs, and chapters in scientific books. As a result of continuous education, of the total number of 24 doctors there are 16 subspecialists in respiratory medicine and 4 specialists in internal medicine. There are 9 professors in internal medicine at the University of Pulmonology and Allergy Clinic lecturing at the Medical Faculty in Skopje. The University Pulmonology and Allergy Clinic has an international reputation due to many contacts with famous European Institutions. All these international interrelations have resulted in honouring 3 professors: Prof. Dr. Gert Kunkel from Berlin, Germany, Prof. Dr. Robert Loddenkemper from Berlin, Germany and Prof. Dr. Peter Howard from Southampton, UK.

Possible health effects of liquefied petroleum gas on workers at filling and distribution stations of Gaza governorates.

Liquefied petroleum gas (LPG) is widely used in the Gaza Strip for domestic purposes, in agriculture and industry and, illegally, in cars. This study aimed to identify possible health effects on workers exposed to LPG in Gaza governorates. Data were collected by a questionnaire interview, and haematological and biochemical analyses of venous blood samples were made from 30 workers at filling and distribution stations and 30 apparently healthy controls. Statistically significant differences were found in all self-reported health-related complaints among LPG workers versus controls. LPG workers had significantly higher values of red blood cell counts, haemoglobin, haematocrit mean corpuscular haemoglobin and platelet counts. They also had significantly higher values of kidney function tests (urea, creatinine and uric acid) and liver function enzyme activities (aspartate aminotransferase and alanine aminotransferase). LPG workers at Gaza Strip petroleum stations are at higher risk for health-related symptoms and clinical abnormalities.

Respiratory symptoms, exhaled nitric oxide, and lung function among workers in Tanzanian coffee factories.

OBJECTIVE: To compare chronic respiratory symptoms, fractional exhaled nitric oxide (FENO), and lung function between Robusta and Arabica coffee workers and a control group. METHODS: Chronic respiratory symptoms were assessed by a questionnaire (n = 138 coffee workers and n = 120 controls). The FENO was measured by NIOX MINO device (Aerocrine AB, Solna, Sweden). Lung function was examined by a portable spirometer. RESULTS: Coffee workers had higher prevalence of chronic respiratory and asthma symptoms than controls. Robusta coffee workers were exposed to higher levels of endotoxin and had more asthma symptoms than Arabica coffee workers (38% vs. 18%). Coffee workers had reduced lung function associated with cumulative exposure to total dust and endotoxin. CONCLUSION: Work in coffee factories is associated with small but significant lung function impairment. These changes were not associated with the level of FENO.

[Clinical application of flexible bronchoscopy and balloon dilatation in pediatric respiratory diseases under local anesthesia].

OBJECTIVE: To study the significance and safety of flexible bronchoscopy and balloon dilatation in the diagnosis and treatment of respiratory diseases in children. METHODS: A total of 438 children (236 males and 202 females) with respiratory diseases who were aged from 17 days to 15 years, were examined and/or treated by bronchoscopy (including bronchoscopic intervention) under local anesthesia. RESULTS: Of the 438 children, 311 were diagnosed with pulmonary infection, 68 with atelectasis, 36 with recurrent cough and asthma, 6 with hemoptysis of unknown origin, 6 with bronchial foreign body, 5 with congenital bronchopulmonary dysplasia, 2 with bronchiectasis, 1 with ciliary dyskinesia syndrome, 1 with lung tumor, and 2 with congenital immunodeficiency disease. After bronchoscopic examination, local flushing or bronchoalveolar lavage, and foreign body extraction, marked response was seen in 379 cases and response was seen in 46 cases. High-pressure balloon dilatation under bronchoscopy was performed in 5 cases with inflammatory stricture and achieved satisfying clinical effect. No severe complications were found in bronchoscopy. CONCLUSIONS: Bronchoscopy and balloon dilatation under local anesthesia is safe and effective for the diagnosis and treatment of respiratory diseases in children.

Application of metabolomics approaches to the study of respiratory diseases.

Metabolomics is the global unbiased analysis of all the small-molecule metabolites within a biological system, under a given set of conditions. These methods offer the potential for a holistic approach to clinical medicine, as well as improving disease diagnosis and understanding of pathological mechanisms. Respiratory diseases including asthma and chronic obstructive pulmonary disorder are increasing globally, with the latter predicted to become the third leading cause of global mortality by 2020. The root causes for disease onset remain poorly understood and no cures are available. This review presents an overview of metabolomics followed by in-depth discussion of its application to the study of respiratory diseases, including the design of metabolomics experiments, choice of clinical material collected and potentially confounding experimental factors. Particular challenges in the field are presented and placed within the context of the future of the applications of metabolomics approaches to the study of respiratory diseases.

Metabolomics in paediatric respiratory diseases and bronchiolitis.

The metabolic study of an organism may make it possible to monitor, through the metabolites,the physiology and/or pathology of the organism itself. Metabolomics, in the strictest sense, "the set of metabolites, the final products of the genetic expression". Most clinical chemistry tests available today rely on old technologies that measure only a single chemical in blood, urine or other biofluids, and these tests are neither sensitive nor specific for any particular disease. Metabolomics offers a holistic approach to systems medicine, with the promise to enhance clinical chemistry diagnostics in several pathologic conditions. The present review covers the application of clinical metabolomics in three different areas of respiratory diseases in pediatrics: asthma, pneumonia and bronchiolitis. Comparison between two 1H-NMR urine spectra by two bronchiolitis patients are also presented.

Systems for the management of respiratory disease in primary care--an international series: United Kingdom.

INTRODUCTION: The UK National Health Service (NHS) is essentially publicly funded through general taxation. Challenges facing the NHS include the rise in prevalence of long-term conditions and financial pressures. NATIONAL POLICY TRENDS: Political devolution within the UK has led to variations in the way services are organised and delivered between the four nations. PRIMARY CARE RESPIRATORY SERVICES IN THE UK: Primary care is the first point of contact with services. Most respiratory conditions are managed here, including prevention, diagnosis, treatment and palliative care. EPIDEMIOLOGY: Respiratory disease accounts for more primary care consultations than any other type of illness, with 24 million consultations annually. ACCESS TO CARE: Equitable access to care is an ongoing challenge: telehealthcare is being tried as a possible solution for monitoring of asthma and COPD. REFERRAL AND ACCESS TO SPECIALIST CARE: Referrals for specialist advice are usually to a secondary care respiratory physician, though respiratory General Practitioners with a Special Interest (GPwSIs) are an option in some localities. CONCLUSIONS: Prevalence of asthma and COPD is high. Asthma services are predominantly nurse-led. Self-management strategies are widely promoted but poorly implemented. COPD is high on the policy agenda with a shift in focus to preventive lung health and longterm condition management.