20 research outputs found

    What Is The New and Sensitive Tumor Marker for Detection of Different Kidney Tumors? Modern Study to Isolation, Purification and Characterization of N-Acetyl Galactosamine Binding Lectin From Sera Of Patients With Kidney Cancer

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    The present study was designed to investigate lectins in sera of patients with kidney tumors, in addition to non tumoral kidney disease patients. Fifty five patients of malignant kidney tumors were enrolled in addition to 23 patients of benign kidney tumors, and 18 patients of non tumoral kidney diseases used as control groups, in addition to 46 healthy individuals were also investigated. The age of patients and healthy individuals were 10-90 years. The measurement of total serum proteins revealed significant (p < 0.001) decrease in patients of malignant tumors when compared with those of benign, non tumoral diseases, and healthy individuals. The conditions of the hemagglutination assay of serum lectin activity were optimized. They were Tris buffer of 20 mM and pH 7.4, 60 mM CaCl2, 800 µg of defatted serum, 30 ËšC for serum samples, 60 minutes for serum samples, and human blood of group A+ suspension with 1.4 optical density. The measurement of the specific hemagglutination activity of lectins demonstrated significant (p < 0.001) elevation in patients of malignant tumors when compared with those of other patients and healthy individuals. Lectin activity was pointed out to be significantly (r = 0.767 at p < 0.0005) positively correlated with stage of malignancies. The cutoff value of the specific hemagglutination activity was found to equal 6 SHU for discriminatory malignant kidney tumors. Serum lectins activity were indicated to be inhibited by galactose, mannose, lactose, and N-acetyl galactosamine. Purification of lectin from sera of patients with malignant kidney tumors by affinity chromatography with the use of silver stain revealed N-Acetyl Galactosamine Binding Lectin (GalNAcBL). The purified folds and the yield was 178 with 32.4%. The polyacrylamide gel electrophoresis (PAGE) of purified lectin demonstrated one band consisted lectin activity. The approximate molecular weight of GalNAcBL was determined and found to be 63.83. Purified lectin was characterized through the assessment of the capability to agglutinate RBCs, inhibition by EDTA, pH dependency, thermal dependent, and carbohydrate contents. GalNAcBL were observed to be calcium dependence lectins (C-type). These results suggest that the diagnosis of the specific hemagglutination activity of lectin is promising biomarker for discrimination of malignant kidney tumor patients and the purified lectin could be introduced in the field of biomarkers.Â

    Bornological Soft Sets

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    The concept of bounded set within this set or space is given by many authors. A bornology is defined on soft set to solve the problems of boundedness for the soft set. Also, we construct soft base and soft subbase as a part of fundamental construction for bornological soft sets. Furthermore, It is a natural to study fundamental construction for bornological soft sets, such as soft subspace, product soft bornology and soft bornological isomorphism. Additionally, a family of bornological soft sets can be a partial ordered set by partial ordered relation and we prove that the intersection of bornological soft sets is bornological soft sets but the union of bornological soft sets is not necessary to be bornological soft sets. The left-right translation is soft bornological isomorphism and the product of bornological soft sets are bornological soft sets. Finally, generate soft bornological structure whose elements are soft unbounded sets

    Prediction of Coronary Revascularization in Stable Angina: Comparison of FFRCT With CMR Stress Perfusion Imaging.

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    OBJECTIVES: This study was designed to compare head-to-head fractional flow reserve (FFR) derived from coronary computed tomography angiography (CTA) (FFRCT) and cardiac magnetic resonance (CMR) stress perfusion imaging for prediction of standard-of-care-guided coronary revascularization in patients with stable chest pain and obstructive coronary artery disease by coronary CTA. BACKGROUND: FFRCT is a novel modality for noninvasive functional testing. The clinical utility of FFRCT compared to CMR stress perfusion imaging in symptomatic patients with coronary artery disease is unknown. METHODS: Prospective study of patients (n=110) with stable angina pectoris and 1 or more coronary stenosis ≥50% by coronary CTA. All patients underwent invasive coronary angiography. Revascularization was FFR-guided in stenoses ranging from 30% to 90%. FFRCT ≤0.80 in 1 or more coronary artery or a reversible perfusion defect (≥2 segments) by CMR categorized patients with ischemia. FFRCT and CMR were analyzed by core laboratories blinded for patient management. RESULTS: A total of 38 patients (35%) underwent revascularization. Per-patient diagnostic performance for identifying standard-of-care-guided revascularization, (95% confidence interval) yielded a sensitivity of 97% (86 to 100) for FFRCT versus 47% (31 to 64) for CMR, p  0.05, respectively. CONCLUSIONS: In patients with stable chest pain referred to invasive coronary angiography based on coronary CTA, FFRCT and CMR yielded similar overall diagnostic accuracy. Sensitivity for prediction of revascularization was highest for FFRCT, whereas specificity was highest for CMR.Danish Heart Foundation (grant no. 15-R99-A5837-22920)Health Research Fund of Central Denmark Regio

    Effectiveness of a national quality improvement programme to improve survival after emergency abdominal surgery (EPOCH): a stepped-wedge cluster-randomised trial

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    Background: Emergency abdominal surgery is associated with poor patient outcomes. We studied the effectiveness of a national quality improvement (QI) programme to implement a care pathway to improve survival for these patients. Methods: We did a stepped-wedge cluster-randomised trial of patients aged 40 years or older undergoing emergency open major abdominal surgery. Eligible UK National Health Service (NHS) hospitals (those that had an emergency general surgical service, a substantial volume of emergency abdominal surgery cases, and contributed data to the National Emergency Laparotomy Audit) were organised into 15 geographical clusters and commenced the QI programme in a random order, based on a computer-generated random sequence, over an 85-week period with one geographical cluster commencing the intervention every 5 weeks from the second to the 16th time period. Patients were masked to the study group, but it was not possible to mask hospital staff or investigators. The primary outcome measure was mortality within 90 days of surgery. Analyses were done on an intention-to-treat basis. This study is registered with the ISRCTN registry, number ISRCTN80682973. Findings: Treatment took place between March 3, 2014, and Oct 19, 2015. 22 754 patients were assessed for elegibility. Of 15 873 eligible patients from 93 NHS hospitals, primary outcome data were analysed for 8482 patients in the usual care group and 7374 in the QI group. Eight patients in the usual care group and nine patients in the QI group were not included in the analysis because of missing primary outcome data. The primary outcome of 90-day mortality occurred in 1210 (16%) patients in the QI group compared with 1393 (16%) patients in the usual care group (HR 1·11, 0·96–1·28). Interpretation: No survival benefit was observed from this QI programme to implement a care pathway for patients undergoing emergency abdominal surgery. Future QI programmes should ensure that teams have both the time and resources needed to improve patient care. Funding: National Institute for Health Research Health Services and Delivery Research Programme

    Effectiveness of a national quality improvement programme to improve survival after emergency abdominal surgery (EPOCH): a stepped-wedge cluster-randomised trial

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    BACKGROUND: Emergency abdominal surgery is associated with poor patient outcomes. We studied the effectiveness of a national quality improvement (QI) programme to implement a care pathway to improve survival for these patients. METHODS: We did a stepped-wedge cluster-randomised trial of patients aged 40 years or older undergoing emergency open major abdominal surgery. Eligible UK National Health Service (NHS) hospitals (those that had an emergency general surgical service, a substantial volume of emergency abdominal surgery cases, and contributed data to the National Emergency Laparotomy Audit) were organised into 15 geographical clusters and commenced the QI programme in a random order, based on a computer-generated random sequence, over an 85-week period with one geographical cluster commencing the intervention every 5 weeks from the second to the 16th time period. Patients were masked to the study group, but it was not possible to mask hospital staff or investigators. The primary outcome measure was mortality within 90 days of surgery. Analyses were done on an intention-to-treat basis. This study is registered with the ISRCTN registry, number ISRCTN80682973. FINDINGS: Treatment took place between March 3, 2014, and Oct 19, 2015. 22 754 patients were assessed for elegibility. Of 15 873 eligible patients from 93 NHS hospitals, primary outcome data were analysed for 8482 patients in the usual care group and 7374 in the QI group. Eight patients in the usual care group and nine patients in the QI group were not included in the analysis because of missing primary outcome data. The primary outcome of 90-day mortality occurred in 1210 (16%) patients in the QI group compared with 1393 (16%) patients in the usual care group (HR 1·11, 0·96-1·28). INTERPRETATION: No survival benefit was observed from this QI programme to implement a care pathway for patients undergoing emergency abdominal surgery. Future QI programmes should ensure that teams have both the time and resources needed to improve patient care. FUNDING: National Institute for Health Research Health Services and Delivery Research Programme
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