Identification of Exhaled Metabolites Correlated with Respiratory Function and Clinical Features in Adult Patients with Cystic Fibrosis by Real-Time Proton Mass Spectrometry.

Cystic fibrosis (CF) is a hereditary disease characterized by the progression of respiratory disorders, especially in adult patients. The purpose of the study was to identify volatile organic compounds (VOCs) as predictors of respiratory dysfunction, chronic respiratory infections of , , , and VOCs associated with severe genotype and highly effective modulator treatment (HEMT). Exhaled breath samples from 102 adults with CF were analyzed using PTR-TOF-MS, obtained during a forced expiratory maneuver and normal quiet breathing.

Exhaled breath analysis in adult patients with cystic fibrosis by real-time proton mass spectrometry.

Background: Proton-transfer reaction time-of-flight mass spectrometry (PTR-TOF-MS) is a promising tool for a rapid online determination of exhaled volatile organic compounds (eVOCs) profiles in patients with cystic fibrosis (CF).

Objective: To detect VOC breath signatures specific to adult patients with CF compared with controls using PTR-TOF-MS.

Methods: 102 CF patients (54 M/48, mean age 25.

Challenging Diagnostics of Biofilm Associated Periprosthetic Infection in Immunocompromised Patient: A Clinical Case.

Background: Periprosthetic joint infection (PJI) is a devastating complication of joint arthroplasty. The identification of microorganisms in biofilm-related PJI is challenging yet significant stage of the treatment process. Medical microbiology methods, such as pure culture isolation, remain the gold standard.

[Antibiotic Resistance of MRSA in the Russian Federation].

The results of the multicentre trial on estimation of MRSA antibiotic susceptibility to 17 antibiotics are presented. 474 nonrepeting isolates of MRSA (mecA+), collected in 2011-2014 in 10 cities of the Russian Federation were used in the trial. The antibiotic susceptibility was determined by the method of serial microdilutions in broth with estimation of the MICs in accordance with the international standards CLSI 2014 and EUCAST 2014.

[The dynamics of changes in lysozyme activity and content of lactoferrin content of patients with chronic osteomyelitis].

The article demonstrates that the examination of patients with chronic osteomyelitis treated using the transosseous osteosynthesis technique established the ambiguous character of changes in concentration of lactoferrin and lysozyme in blood serum as compared with pre-surgery values. It is demonstrated that closer to the end of 2-3 months after surgery the normalization of analyzed indicators occurs. The complex detection of lactoferrin, lysozyme applied additionally to basal examination of cell immunity can be used to monitor the chronic osteomyelitis.