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Osteopontin (OPN) is associated with prognosis of patients with non-small-cell lung cancer (NSCLC). However, little is known about the association between OPN gene polymorphism and the chemotherapy response in NSCLC patients. Methods. A total of 497 patients with inoperable advanced stage of NSCLC (stages III B and IV NSCLC) were enrolled. All patients had received platinum-based chemotherapy. OPN gene polymorphisms at 156 GG/G, 443 C/T, and -66T/G were determined. Results. The genotypes and allele frequency of -443C>T were significantly different between the responders and nonresponders. Responders had a markedly higher frequency of -443TT genotype than responders (40.71% versus 19.09%, P < 0.001). With CC as reference, the TT genotype carriers had a higher chance to be well responders (adjusted OR = 4.43, 95% CI: 2.60-7.53, adjusted P < 0.001). The median overall survival time for patients with -443CC, -443CT, and -443TT genotype carriers was significantly different. Multivariate Cox proportional hazards regression models showed that OPN -443C>T gene polymorphisms were closely correlated to poor NSCLC prognosis. Conclusion. OPN -443C>T gene polymorphism may be used as a molecular marker to predict the treatment response to chemotherapy in advanced NSCLC patients.

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Asthma is one of the most common chronic diseases of the respiratory system. It is estimated that up to 40% of asthmatic women of childbearing age may experience a cyclical exacerbation of asthmatic symptoms during the perimenstrual period, which is called perimenstrual asthma (PMA). The precise prevalence of this particular phenotype of asthma is difficult to determine due to a lack of explicit diagnostic criteria and appropriate epidemiological surveys. According to one of the best documented hypotheses regarding perimenstrual exacerbations of asthma, the impact of female steroid sex hormones on the function of the respiratory system and inflammations in the bronchi may play a central role in this phenomenon. Although the basic medical approach to PMA is similar to that used in other asthma phenotypes, unconventional methods of "experimental" treatment have also been tried. Unfortunately, current knowledge about the pathogenic mechanisms of this phenotype of asthma is incomplete and inconsistent, which justifies the need for further interdisciplinary studies with the participation of specialists in both gynecology and lung diseases. The knowledge thus acquired will help to individualize and focus future therapy on specific cellular and/or hormonal mechanisms to optimize asthma control in patients with PMA.

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Pregnancy may be complicated by new onset or preexisting asthma. This article reviews the recognition and management of asthma during pregnancy, as well as general principles of asthma medication use during pregnancy.

Cystic fibrosis is characterised by chronic polymicrobial infection and inflammation in the airways of patients. Antibiotic treatment regimens, targeting recognised pathogens, have substantially contributed to increased life expectancy of patients with this disease. Although the emergence of antimicrobial resistance and selection of highly antibiotic-resistant bacterial strains is of major concern, the clinical relevance in cystic fibrosis is yet to be defined. Resistance has been identified in recognised cystic fibrosis pathogens and in other bacteria (eg, Prevotella and Streptococcus spp) detected in the airway microbiota, but their role in the pathophysiology of infection and inflammation in chronic lung disease is unclear. (Source: LANCET)