434 research outputs found
Urinary Eosinophil Protein X in Children with Atopic Asthma
The aim of this study was to investigate the relationship between urinary eosinophil protein X (uEPX) and asthma symptoms, lung function, and other markers of eosinophilic airway inflammation in asthmatic school children. Methods. A cross-sectional study was performed in 180 steroid dependent atopic children with stable moderately severe asthma, who were stable on 200 or 500μg of fluticasone per day. uEPX was measured in a single sample of urine and was normalized for creatinine concentration (uEPX/c). Symptom scores were kept on a diary card. FEV1 and PD20 methacholine were measured. Sputum induction was performed in 49 and FENO levels measured in 24 children. Results. We found an inverse correlation between uEPX/c and FEV1 (r = −.20, P = .01) and a borderline significant correlation between uEPX/c and PD20 methacholine (r = −.15, P = .06). Symptom score, %eosinophils and ECP in induced sputum and FENO levels did not correlate with uEPX/c. Conclusion. uEPX/c levels did not correlate with established markers of asthma severity and eosinophilic airway inflammation in atopic asthmatic children
Left ventricular isovolumic relaxation and renin-angiotensin system in the growth restricted fetus
To determine left ventricular isovolumic relaxation time (LV IRT) in normally developing and growth restricted fetuses (FGR) as an indicator of fetal cardiac afterload and neonatal systolic blood pressure
Acute stress response in children with meningococcal sepsis: important differences in the growth hormone/insulin-like growth factor I axis between nonsurvivors and survivors
Septic shock is the most severe clinical manifestation of meningococcal
disease and is predominantly seen in children under 5 yr of age. Very
limited research has been performed to elucidate the alterations of the
GH/IGF-I axis in critically ill children. We evaluated the GH/IGF-I axis
and the levels of IGF-binding proteins (IGFBPs)
Prediction of two month modified Rankin Scale with an ordinal prediction model in patients with aneurysmal subarachnoid haemorrhage
Background. Aneurysmal subarachnoid haemorrhage (aSAH) is a devastating event with a frequently disabling outcome. Our aim was to develop a prognostic model to predict an ordinal clinical outcome at two months in patients with aSAH. Methods. We studied patients enrolled in the International Subarachnoid Aneurysm Trial (ISAT), a randomized multicentre trial to compare coiling and clipping in aSAH patients. Several models were explored to estimate a patient's outcome according to the modified Rankin Scale (mRS) at two months after aSAH. Our final model was validated internally with bootstrapping techniques. Results. The study population comprised of 2,128 patients of whom 159 patients died within 2 months (8%). Multivariable proportional odds analysis identified World Federation of Neurosurgical Societies (WFNS) grade as the most important predictor, followed by age, sex, lumen size of the aneurysm, Fisher grade, vasospasm on angiography, and treatment modality. The model discriminated moderately between those with poor and good mRS scores (c statistic = 0.65), with minor optimism according to bootstrap re-sampling (optimism corrected c statistic = 0.64). Conclusion. We presented a calibrated and internally validated ordinal prognostic model to predict two month mRS in aSAH patients who survived the early stage up till a treatment decision.
Molecular cytogenetic analysis of prostatic adenocarcinomas from screening studies : early cancers may contain aggressive genetic features
No objective parameters have been found so far that can predict the
biological behavior of early stages of prostatic cancer, which are
encountered frequently nowadays due to surveillance and screening
programs. We have applied comparative genomic hybridization to routinely
processed, paraffin-embedded radical prostatectomy specimens derived from
patients who participated in the European Randomized Study of Screening
for Prostate Cancer. We defined a panel consisting of 36 early cancer
specimens: 13 small (total tumor volume (Tv) < 0.5 ml) carcinomas and 23
intermediate (Tv between 0.5-1.0 ml) tumors. These samples were compared
with a set of 16 locally advanced, large (Tv > 2.0 ml) tumor samples, not
derived from the European Randomized Study of Screening for Prostate
Cancer. Chromosome arms that frequently (ie, > or = 15%) showed loss in
the small tumors included 13q (31%), 6q (23%), and Y (15%), whereas
frequent (ie, > or = 15%) gain was seen of 20q (15%). In the intermediate
cancers, loss was detected of 8p (35%), 16q (30%), 5q (26%), Y (22%), 6q,
and 18q (both 17%). No consistent gains were found i
A new mild hyperthermia device to treat vascular involvement in cancer surgery
Abstract Surgical margin status in cancer surgery represents an important oncologic parameter affecting overall prognosis. The risk of disease recurrence is minimized and survival often prolonged if margin-negative resection can be accomplished during cancer surgery. Unfortunately, negative margins are not always surgically achievable due to tumor invasion into adjacent tissues or involvement of critical vasculature. Herein, we present a novel intra-operative device created to facilitate a uniform and mild heating profile to cause hyperthermic destruction of vessel-encasing tumors while safeguarding the encased vessel. We use pancreatic ductal adenocarcinoma as an in vitro and an in vivo cancer model for these studies as it is a representative model of a tumor that commonly involves major mesenteric vessels. In vitro data suggests that mild hyperthermia (41–46 °C for ten minutes) is an optimal thermal dose to induce high levels of cancer cell death, alter cancer cell’s proteomic profiles and eliminate cancer stem cells while preserving non-malignant cells. In vivo and in silico data supports the well-known phenomena of a vascular heat sink effect that causes high temperature differentials through tissues undergoing hyperthermia, however temperatures can be predicted and used as a tool for the surgeon to adjust thermal doses delivered for various tumor margins
Prognostic factors for survival in patients with advanced oesophageal cancer treated with cisplatin-based combination chemotherapy
The objective of this study was to identify prognostic factors for survival in patients with advanced oesophageal cancer, who are treated with cisplatin-based combination chemotherapy. We analysed the baseline characteristics of 350 patients who were treated in six consecutive prospective trials with one of the following regimens: cisplatin/etoposide, cisplatin/etoposide/5-fluorouracil, cisplatin/paclitaxel (weekly) and cisplatin/paclitaxel (biweekly). Predictive factors in univariate analyses were further evaluated using multivariate analysis (Cox regression). The median survival of all patients was 9 months. The 1, 2 and 5-year survival rates were 33, 12 and 4%, respectively. The main prognostic factors were found to be WHO performance status (0 or 1 vs 2), lactate dehydrogenase (normal vs elevated), extent of disease (limited disease defined as locoregional irresectable disease or lymph node metastases confined to either the supraclavicular or celiac region vs extensively disseminated disease) in addition to the type of treatment (weekly or biweekly cisplatin/paclitaxel regimen vs 4-weekly cisplatin/etoposide with or without 5-fluorouracil). Although weight loss, liver metastases and alkaline phosphatase were significant prognostic factors in univariate analyses, these factors lost their significance in multivariate analyses. The median survival for patients without any risk factors was 12 months, compared to only 4 months in patients with WHO 2 plus elevated LDH and extensive disease. The performance status, extent of disease, LDH and the addition of paclitaxel to cisplatin are independent prognostic factors in patients with advanced oesophageal cancer, who are treated with cisplatin-based combination chemotherapy
The influence of Mechanical bowel preparation in elective colorectal surgery for diverticulitis
Background: Mechanical bowel preparation (MBP) has been shown to have no influence on the incidenc
Interferon alfa for chronic hepatitis B infection: Increased efficacy of prolonged treatment
Interferon alfa (IFN-a) is the primary treatment for
chronic hepatitis B. The standard duration of IFN-a therapy
is considered 16 weeks; however, the optimal treatment
length is still poorly defined. We evaluated the efficacy and
acceptability of prolonged IFN-a treatment in patients with
chronic hepatitis B. To investigate whether treatment prolongation
could enhance the rate of hepatitis B e antigen
(HBeAg) seroconversion, we conducted a prospective, controlled,
multicenter trial in wh
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