The study suggests that maternal use of antibiotics during pregnancy may prove to be a risk factor for persistent wheezing and development of allergy in early infancy.

PurposeSignificant progress has been made in the technological and physical aspects of dose delivery and distribution in proton therapy. However, mode of cell killing induced by protons is less understood in comparison with X-rays. The purpose of this study is to see if there is any difference in the mode of cell-killing, induced by protons and X-rays in an ex vivo human peripheral blood lymphocyte (HPBL) model.Materials and methodsHPBL were irradiated with 60 MeV proton beam or 250-kVp X-rays in the dose range of 0.3–4.0 Gy. Frequency of apoptotic and necrotic cells was determined by the Fluorescein (FITC)-Annexin V labelling procedure, 1 and 4 h after irradiation. Chip-based DNA Ladder Assay was used to confirm radiation-induced apoptosis and necrosis. Chip-based DNA Ladder Assay was used to confirm radiation-induced apoptosis.ResultsEx vivo irradiation of HPBL with proton beams of 60 MeV or 250 kVp X-rays resulted in apoptotic as well as necrotic modes of cell-killing, which were evident at both 1 and 4 h after irradiation in the whole dose and time range. Generally, our results indicated that protons cause relatively higher yields of cell death that appears to be necrosis compared to X-rays. The analysis also demonstrates that radiation type and dose play a critical role in mode of cell-killing.ConclusionObtained results suggest that X-rays and protons induce cell-killing by different modes. Such differences in cell-killing modes may have implications on the potential of a given therapeutic modality to cause immune modulation via programmed cell death (X-rays) or necrotic cell death (proton therapy). These studies point towards exploring for gene expression biomarkers related necrosis or apoptosis to predict immune response after proton therapy.

IntroductIon Recently, the relationship between vitamin D deficiency and various pathologies as well as functional decline has been reported.objectIves The aim of the study was to assess the relationship between 25-hydroxyvitamin D, 25(OH)D, levels and functional status in elderly patients.PAtIents And methods Mean age of 140 participants (women, 67.1%) was 79.64 ±6.99 years. The study had a cross-sectional design. Physical performance was measured using the handgrip strength, Timed Up and Go, single-leg stance, and tandem stance tests, as well as a balance platform. Cognition was evaluated with the Abbreviated Mental Test Score (AMTS), while functional status with the Basic Activities of Daily Living (ADL) and Instrumental Activities of Daily Living (IADL) scales. Plasma 25(OH)D levels were measured.results Less able patients (worse results in all tests) had significantly lower 25(OH)D levels. Subjects with 25(OH)D levels within the 3rd tertile had a higher AMTS score and handgrip strength; they swayed less on the balance platform and performed better in the IADL. In multivariate logistic regression analysis, 25(OH)D levels of 23.26-47.75 nmol/l were associated with increased odds of cognitive impairment (odds ratio [OR], 3.17; 95% confidence interval [CI], 1.04-9.68; P = 0.04), but also with less lateral sway (OR, 0.24; 95% CI, 0.09-0.64; P = 0.005). Plasma 25(OH)D levels above 47.75 nmol/l were associated with better performance in the tandem stance test (OR, 0.14; 95% CI, 0.04-0.52; P = 0.003) and further decreased lateral sway (OR, 0.27; 95% CI, 0.10-0.77; P = 0.01).conclusIons In elderly people with comorbid conditions, 25(OH)D levels were not associated with handgrip strength, but were associated with balance and cognitive function. These associations as well as high prevalence of vitamin D deficiency necessitate further research evaluating the effect of vitamin D supplementation on the functional status in elderly people.

SummaryBackgroundThis study was designed to evaluate maternal levels of leptin and interferon-gamma (IFN-gamma) in pregnancy complicated with hypertension and to assess the role of cytokines in predicting the risk of cesarean section.Material/MethodsThis was a cohort study with a prospective follow-up. After proportional sampling procedure, the study included the follow-up of 40 women with hypertensive disorders of pregnancy (pregnancy-induced hypertension [PIH] or preeclampsia [PE]) and 40 uncomplicated pregnancies. Women were followed from the time of admission to the delivery. Levels of leptin and interferon-gamma were measured in serum samples from all women. A p-value <0.05 was considered as significant.ResultsSignificant increase in IFN-gamma and leptin concentration in women with pre-eclampsia was observed. We found a significant 1.4-fold increase in the risk of birth by cesarean section associated with the increase of the IFN-gamma concentration by 0.1 pg/ml and almost 3-fold increase in the risk associated with the increase of the leptin concentration.ConclusionsIFN-γ and leptin might be risk markers of cesarean section in hypertension disorders of pregnancy, but further studies supporting this evidence are needed.

DENM) who are occupationally exposed to 131 I. Materials and Methods: The exposure was monitored by whole-body and finger ring dosimeters. The thyroid iodine intake was measured by a whole-body spectrometer equipped with two semiconductor gamma radiation detectors. A cytokinesis-block micronucleus assay and the premature chromosome condensation technique were used to assess the aberration score. Cytogenetic analyses were carried out on a group of 29 workers and were compared to 32 controls (healthy donors), matched for gender and age. Results: On average, the exposed group showed a significantly higher frequency of genetic damage and a higher proliferation index compared to the control group. Smoking status, age and duration of exposure influenced the observed effects in both groups. No differences in measured biomarkers were observed after stratification of the exposed group into two subgroups based on the measured 131 I activity below and above 6 Bq. Conclusion:The findings suggest that radiation protection principles based on whole-body and finger ring dosimetry, supported by activity measurements with a whole-body spectrometer, may be insufficient to monitor the absorbed dose estimation of the nuclear medicine staff who are occupationally exposed to 131 I. Furthermore, their future health risks are influenced by confounders. Direct assessments comparing physical and biological dose estimations on the larger group are needed to accurately monitor occupational radiation exposure.