GJIC, expression of enzymes involved in drug metabolism and ABC transporters correlate with the response of tumour cells to treatment by MSC-expressing prodrug-converting genes.

Bacterial infection is the most common complication in paediatric oncological patients during cancer treatment. A suitable tool for early prediction of unfavourable course of infection is still needed. We performed a prospective longitudinal observational study to evaluate of the role of serum biomarkers (C-reactive protein, procalcitonin, interleukin-6, presepsin) in the early diagnosis of bacteraemia (gram-negative versus gram-positive) in patients with haematological malignancies. We observed 69 febrile episodes in 33 patients (17 male, 16 female; 1.5-18.9 years, mean 7.31 years, median 5 years). Within this sample, there were 22 cases of positive blood cultures, 16 cases of sepsis, 38 cases of fever with no signs or symptoms of sepsis, and two deaths from infectious complications. All markers tested had good negative predictive value (73% -93%). CRP was characterized by good specificity for registration bacteraemia (96%, 95% CI: 85% -99%), but other results were inconclusive. We identified comparably balanced sensitivity (64% -81%) and specificity (61% -88%) for interleukin-6 and procalcitonin, and we proved their quality to predict positive blood culture and clinical signs of sepsis as well. Patients with gram-negative bacteraemia had significantly elevated levels of PCT and IL-6 in comparison with a group of patients with gram-positive bacteraemia (p = 0.04 for PCT and p = 0.005 for IL-6). Presepsin was characterized by poor specificity (27%, 95% CI: 15% -43%) and positive predictive value (24%, 95% CI: 12 -39%) for predicting bacteraemia, and by better sensitivity (84%, 95% CI: 55% -98%) and specificity (58%, 95% CI: 42% -73%) for predicting clinical signs of sepsis. Key words: C-reactive protein, procalcitonin, interleukin-6, presepsin, fever, sepsisBacterial infection is the most common treatment-related complication in patients with haematological malignancies [1]. Documented mortality associated with paediatric febrile neutropenia is 2% [2]. The potential for early diagnosis of bacteraemia through serum biomarkers has been the subject to extensive research [3]. In 2012 Phillips et al published large meta-analysis of 25 studies exploring 14 different biomarkers in 3,585 episodes of febrile neutropenia. CRP, PCT and IL-6 were subject to quantitative meta-analysis. The bivariate estimates of diagnostic precision of these biomarkers and outcomes were done. Data were available for meta-analysis for CRP for microbiologically or clinically documented infection (results: cut off > 50mg/dl, sensitivity 65%, specificity 73%), for PCT assessing microbiologically or clinically documented infection (results: cut off > 0.2 mg/ml, sensitivity 96%, specificity 85%), for IL-6 reporting microbiologically or clinically documented infection (results: cut off > 235 pg/ml, sensitivity 68%, specificity 94%), and gram-negative bacteraemia (results: cut off > 1000 pg/ml, sensitivity 78%, specificity 96%). Huge inconsistencies and heterogeneity in the studies included in this review were the most important limiting factors [...

Methylation of the cytosine residues within the CpG dinucleotides plays an important role in the fundamental cellular processes, human diseases and even cancer. The DNA methylation represents a very stable sign and therefore may be used as a valuable marker for cancer screening. Epigenetic cancer biomarkers are independent of classical morphology and thus show extensive potential to overcome the limitations of cytology. Several epigenetic cancer markers have been reported to be detectable in body fluids such as bronchial aspirate, sputum, plasma and serum.Short stature homeobox gene 2 (SHOX2) encodes a homeo-domain transcription factor, which has been identified as a close homologue of the SHOX gene and both genes are involved in skeletogenesis and heart development. Methylation of SHOX2 gene has been shown to be present at high prevalence in carcinomas of lung, however may also be used to identify other tumour entities.In the presented study, we have compared suitability of two types of material associated with lung cancer for the detection of SHOX2 methylation. We have confirmed that methylation of SHOX2 gene represents reliable marker of lung malignancies. The parallel tests in the blood plasma revealed that it may represent a good alternative material for testing of the SHOX2 methylation, making the test available to patients who are unable to undergo bronchoscopy.

One month of Pycnogenol administration (1 mg/kg body weight/day) caused a significant decrease in GSSG and a highly significant increase in GSH levels as well as improvement of GSH/GSSG ratio in comparison to a group of patients taking a placebo. TAS in children with ADHD was decreased in comparison with reference values. Pycnogenol administration normalizes TAS of ADHD children.

Autism spectrum disorders (ASD) are characterized by impairments in social interaction, communication, and restricted, stereotyped behavior. Gastrointestinal (GI), nutritional, and feeding problems are often reported in ASD. We investigated the prevalence of GI symptoms, food selectivity, and mealtime difficulties, and their associations with dietary interventions, food supplement use, and behavioral characteristics in a sample involving 247 participants with ASD and 267 controls aged 2–18 years. Data were collected by a questionnaire. GI symptoms were observed in 88.9% of children and adolescents with ASD, more often in girls than in boys. High rates of food selectivity (69.1%) and mealtime problems (64.3%) were found. Food supplements were used by 66.7% of individuals, mainly vitamins/minerals, probiotics, and omega-3 fatty acids. In the ASD sample, 21.2% of subjects followed a diet, mostly based on gluten and milk restriction, including individuals exhibiting food selectivity. Frequency of GI symptoms, food selectivity, and mealtime problems correlated weakly, but significantly with behavioral characteristics in the ASD group, but not with food supplement use. The study demonstrated that higher frequency of GI symptoms, food selectivity, and mealtime problems are a common problem in pre-schoolers, schoolchildren, and adolescents with ASD, and together with dietary modification, they are significantly associated with ASD.