174 research outputs found
New life cycles for drosscapes: Recycle of a brownfield along the waterfront of Barcelona
Ponència presentada a: Session 7: Participación en planeamiento / Participation in planning. Environmental and hermeneutic plannin
Conservative Surgical Treatment of Bisphosphonate-Related Osteonecrosis of the Jaw with Er,Cr:YSGG Laser and Platelet-Rich Plasma: A Longitudinal Study
Abstract
Introduction: The management of bisphosphonate-related osteonecrosis of the jaw (BRONJ), with no evidence-based guidelines, remains controversial. We aimed to evaluate the efficiency of a conservative surgical treatment combining Er,Cr:YSGG laser and platelet-rich plasma (PRP) for the treatment of BRONJ in cancer patients.Methods:We performed a longitudinal cohort study. Inclusion criteria were (1) age 65 18 years; (2) cancer diagnosis; (3) treatment with NBP because of the underlying cancer.
Results:We consecutively recruited ten patients diagnosed with BRONJ in stage I or II. These patients underwent a surgical laser-assisted therapy together with autologous PRP. At the latest follow-up at 12 months, clinical improvement was observed in eight patients. Registration Number is IRCT20180329039159N1.
Conclusion:We could successfully manage the BRONJ utilizing this combined protocol to heal the 30% of surgically treated sites and to improve the 50% of patients' lesions clinically. Our findings suggest that a surgical approach combined with Er,Cr:YSGG laser and PRP benefit cancer patients with general health issues
Monoclonal antibodies and antibody fragments: state of the art and future perspectives in the treatment of non-haematological tumors
Introduction: The use of monoclonal antibodies is one of the strategies for targeting the specific key points of the main pathways of cancer growth and survival, but only a few antibodies have offered a clear clinical benefit in the treatment of non-haematological malignancies. Areas covered: This review summarizes the general properties of monoclonal antibodies, including structure, nomenclature and production techniques. The antibodies approved for use in clinical practice for the treatment of non-haematological tumors and those antibodies still being developed in this setting are briefly described. The types of antibody fragments are also reported. Expert opinion: Monoclonal antibodies were initially developed in order to avoid the cytotoxic effects of chemotherapy on healthy tissues. However antibodies have not yet replaced chemotherapy agents, since the combination of both kinds of drugs have usually appeared to achieve higher benefit compared with chemotherapy alone. The research for the development of new monoclonal antibodies aims to identify further targets and to provide innovative antibody constructs
Hypoxia inducible factor-1 alpha expression is increased in infected positive HPV16 DNA oral squamous cell carcinoma and positively associated with HPV16 E7 oncoprotein
<p>Abstract</p> <p>Background</p> <p>There is increasing evidence for the role of High Risk (HR) Human PapillomaVirus (HPV) in the pathogenesis of Oral Squamous Cell Carcinoma (OSCC). The E6 and E7 oncogenes from HR HPVs are responsible for the deregulation of p53 and pRB proteins involved in cell cycle and apoptotic pathways. In cell lines experiments, the HPV E7 protein seems to be able to enhance Hypoxia Inducible Factor-1 alpha (HIF-1α) activity, normally involved in the response to hypoxia and able to enhance angiogenesis.</p> <p>Results</p> <p>We studied tumor specimens from 62 OSCC; a higher prevalence of tumors in TNM stage II and also in pT2 class between OSCC infected positive HPV16 DNA than non-infected ones was observed. HIF-1α positivity was detected throughout the analysed fields, not associated with areas of necrosis and also observed in cells immediately adjacent to blood vessels. A significant increase in mean values of the HIF-1α labeling indexes was observed for pT1-T2, as well for stage I-II, in the infected positive HPV16 DNA tumors than non-infected ones. HIF-1α and HPV16 E7 labeling indexes showed a significantly positive correlation which suggested a positive association between HPV16 E7 and HIF-1α expression.</p> <p>Conclusions</p> <p>In our specimens HIF-1α immunoreactivity hints for an O<sub>2</sub>-independent regulatory mechanism in infected positive HPV16 DNA tumors, especially for pT1-T2 and stage I-II tumors, suggesting a very early involvement in the development of HPV-induced OSCC. HIF-1α and HPV16 E7 labeling indexes suggest also a positive association between the two proteins in infected positive HPV16 DNA OSCC.</p
Bisphosphonate-related osteonecrosis of the jaw (BRONJ): run dental management designs and issues in diagnosis.
Recently, jawbone osteonecrosis has been largely reported as a potential adverse effect of bisphosphonate (BP) administration. Because of the peculiar pharmacokinetic and pharmacodynamic features of the BF (mainly for i.v. administration), their efficacy and large use, some major issues have to be taken into account extendedly both by oncologists and by dentists: 1) therapeutic dental protocol for patients with diagnosis of bisphosphonate-related osteonecrosis of the jaw (BRONJ); 2) dental strategies for patients in former or current i.v. BF treatment and in absence of BRONJ signs; 3) strategies for patients before i.v. BF treatment. Clinical features and guidelines for the management of this condition have been investigated and reported, sometimes with unclear indications; hence, on the basis of the literature and our clinical experience, major end points of this paper are providing our run protocols for the issues above described and, finally, focusing on a crucial, but not extensively investigated point: the early and correct diagnosis of BRONJ versus metastatic jaw lesions in cancer patients
Antiendomysium antibodies assay in the culture medium of intestinal mucosa: an accurate method for celiac disease diagnosis
Background Celiac disease (CD) diagnosis is becoming more difficult as patients with no intestinal histology lesions may also be suffering from CD.
Aim To evaluate the diagnostic accuracy of antiendomysium (EmA) assay in the culture medium of intestinal biopsies for CD diagnosis.
Patients and methods The clinical charts of 418 patients with CD and 705 non-CD controls who had all undergone EmA assay in the culture medium were reviewed.
Results EmA assay in the culture medium had a higher sensitivity (98 vs. 80%) and specificity (99 vs. 95%) than serum EmA/antibodies to tissue transglutaminase (anti-tTG) assay. All patients with CD who were tested as false-negatives for serum EmA and/or anti-tTG (32 adults and 39 children) carried the human leukocyte antigen alleles associated to CD. Furthermore, during the follow-up, four patients with negative-serum EmA/anti-tTG, normal villi architecture, and positive-EmAs in the culture medium, developed villous atrophy and underwent gluten-free diet with consequent resolution of the symptoms and complete intestinal histology recovery.
Conclusion EmA assay in the culture medium should be included in the diagnostic criteria for CD diagnosis in 'seronegative' patients. Eur J Gastroenterol Hepatol 23:1018-1023 (C) 2011 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins
The characteristics of different diagnostic tests in adult mild asthmatic patients : comparison with patients with asthma-like symptoms by gastro-oesophageal reflux.
SummaryBackgroundDiagnosing asthma cannot be always easy. It is important to consider the validity of the diagnostic tests, and/or how much more commonly they are positive in patients with asthma compared to healthy subjects and, particularly, to patients with asthma-like symptoms.ObjectiveTo evaluate the validity of diagnostic tests for asthma, in terms of sensitivity, specificity, positive and negative predictive values, in patients with bronchial asthma compared to patients affected by gastro-oesophageal reflux disease (GERD) with asthma-like symptoms, and healthy control subjects without asthma and gastro-oesophageal reflux (GER).DesignSingle-center, cross-sectional, observational study.PatientsWe studied 60 patients with mild asthma, 30 patients with GERD and asthma-like symptoms and 25 healthy control subjects.MeasurementsWe measured provocative concentration of methacholine causing a 20% fall in the forced expiratory volume in 1s (MCh PC20/FEV1), the amplitude percent mean of peak expiratory flow (A%M of PEF), derived from twice-daily readings for >2 weeks, the FEV1/forced vital capacity (FEV1/FVC) ratio, the eosinophil count in blood and in induced sputum and the serum eosinophil cationic protein (ECP) levels.ResultsFEV1/FVC ratio, A%M of PEF, blood eosinophils counts and serum ECP levels were less sensitive and specific when the reference population was composed of patients with asthma-like symptoms by GER. While, MCh PC20/FEV1 and induced sputum eosinophils count were the most sensitive (both 90%) and specific (89% and 92%, respectively) tests.ConclusionOur findings demonstrate that MCh PC20/FEV1 and the induced sputum eosinophil count are the most useful objective tests in patients with mild asthma. All patients with asthma presented both an MCh PC20/FEV1 <1500ÎĽg and eosinophils count in the induced sputum >1%
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