Soluble sPD-L1 and Serum Amyloid A1 as Potential Biomarkers for Lung Cancer.

BACKGROUND: The objective of this prospective study was to evaluate whether soluble programmed cell death-1/programmed cell death-ligand 1 (PD-1/PD-L1) and serum amyloid A1 (SAA1) are potential diagnostic, predictive or prognostic biomarkers in lung cancer. METHODS: Lung cancer patients (n=115) with advanced metastatic disease, 101 with non-small cell lung cancer, NSCLC (77 EGFR wild-type NSCLC patients on chemotherapy, 15 EGFR mutation positive adenocarcinoma patients, 9 patients with mPD-L1 Expression ≥50% NSCLC - responders to immunotherapy), and 14 patients with small cell lung cancer (SCLC) were examined. ELISA method was used to determine sPD-L1 and SAA1 concentrations in patients' plasma. RESULTS: Significantly higher blood concentrations of sPD-L1 and SAA1 were noted in lung cancer patients compared with a healthy control group. In PD-L1+ NSCLC patients, a significantly higher sPD-L1 level was noticed compared to any other lung cancer subgroup, as well as the highest average SAA1 value compared to other subgroups. CONCLUSIONS: It seems that sPD-1/PD-L1 might be a potential biomarker, prognostic and/ or predictive, particularly in patients treated with immunotherapy. Serum amyloid A1 has potential to act as a good predictor of patients' survival, as well as a biomarker of a more advanced disease, with possibly good capability to predict the course of disease measured at different time points.

Prevalence and antibiotic susceptibility of Mycoplasma hominis and Ureaplasma urealyticum in genital samples collected over 6 years at a Serbian university hospital.

BACKGROUND: Mycoplasma hominis and Ureaplasma urealyticum are implicated in a wide array of infectious diseases in adults and children. Since some species have innate or acquired resistance to certain types of antibiotics, antibiotic susceptibility testing of mycoplasma isolated from the urogenital tract assumes increasing importance. AIMS: To evaluate the prevalence and antibiotic susceptibility of M. hominis and U. urealyticum in genital samples collected between 2007 and 2012. METHODS: Three hundred and seventy three patients presenting with symptoms of sexually transmitted diseases, infertility or risky sexual behaviour, who had not taken antibiotics in the previous 6 weeks and had ≥10 WBC per high power field on genital smears were studied. Urethral samples were taken in men and endocervical samples in women. The mycoplasma IST-2 kit was used for organism identification and for testing susceptibility to doxycycline, josamycin, ofloxacin, erythromycin, tetracycline, ciprofloxacin, azithromycin, clarithromycin and pristinamycin. RESULTS: U. urealyticum was isolated from 42 patients and M. hominis from 11 patients. From 9.8% of isolates, both organisms were grown. All M. hominis isolates were resistant to tetracycline, clarithromycin and erythromycin while U. urealyticum was highly resistant to clarithromycin (94.6%), tetracycline (86.5%), ciprofloxacin (83.8%) and erythromycin (83.8%). M. hominis was sensitive to doxycycline (83.3%) and ofloxacin (66.7%) while most U. urealyticum strains were sensitive to doxycycline (94.6%). LIMITATIONS: Inability of the commercial kit used in the study to detect other potentially pathogenic urogenital mycoplasmas (Ureaplasma parvum, Mycoplasma genitalium). CONCLUSION: There is significant resistance of U. urealyticum and M. hominis to tetracycline and macrolides. The most active tetracycline for genital mycoplasmas was found to be doxycycline, which continues to be the drug of first choice.

Performance indicators collected from primary health centres included in organised cervical cancer screening programme in the Republic of Serbia.

PURPOSE: To present the performance indicators for monitoring the cervical cancer screening process conducted in primary health centres (PHCs) and to identify any shortcomings in the implementation of the Organized Cervical Cancer Screening Programme (OCCSP). METHODS: This study included 16 PHCs participating in the OCCSP in the Republic of Serbia. The data were analysed from the moment the methodology in the PHCs has been accurately and consistently applied in accordance with the European guidelines (earliest from 20th December 2012 until 30th November 2014). We constructed "the standardised" model (adjusted on the number of working months). Performance indicators analysed in this study were: coverage by invitation, coverage by examination, and compliance with invitation. RESULTS: According to "the standardised" model, coverage by invitation was 61.9%, coverage by examination was 35.5% and compliance to invitation was 57.3%. CONCLUSION: Social mobilization, education, effective promotion strategies and training about cervical cancer screening program-especially in women of target population-as well as better coordination and planning of capacity-building, and staff resources in PHCs, are needed in the future in order to obtain higher values for our performance indicators. Screening registration will provide additional information about demographic characteristics of the tested women.