Search results for "Pathology"

Flare in axial spondyloarthritis. The dark side of the outcome

2016

Spondyloarthritis (SpA) is a chronic inflammatory rheumatic disease with many phenotypes,1 but the frame of the disease is still a matter of debate, particularly regarding the non-radiographic forms of axial SpA.2 ,3 The disease evolution may have several profiles, mainly related to the treatment strategy, balancing from periods of remission or low disease activity to flares of the disease. The recommended treatment strategies are supposed to be tailored to the disease activity, aiming to reach remission or low disease activity in a T2T strategy,4 with management of remission (reduction of dosage or increase in interval of administration), as well as treatment intensification in case of fla…

Inflammatory mediators as biomarkers in brain disorders.

2013

Neurodegenerative diseases such as Alzheimer, Parkinson, amyotrophic lateral sclerosis, and Huntington are incurable and debilitating conditions that result in progressive death of the neurons. The definite diagnosis of a neurodegenerative disorder is disadvantaged by the difficulty in obtaining biopsies and thereby to validate the clinical diagnosis with pathological results. Biomarkers are valuable indicators for detecting different phases of a disease such as prevention, early onset, treatment, progression, and monitoring the effect of pharmacological responses to a therapeutic intervention. Inflammation occurs in neurodegenerative diseases, and identification and validation of molecules…

Calcifying odontogenic cyst : a 26-year retrospective clinicopathological analysis and immunohistochemical study

2017

Background To identify the prevalence and clinicopathological profile of calcifying odontogenic cysts (COC) stored at an oral pathology service, and to analyze the immunoexpression of cyclooxygenase 2 (COX-2) and cyclin D1 (CD1) in these cysts. Material and methods After a retrospective analysis (1990-2016) carried out to identify cases of COC, a sample of 12 cases was selected for immunohistochemical analysis of COX-2 and CD1 by the immunoperoxidase technique. Protein expression was evaluated semiquantitatively by attributing a score of 0 to 3 (0 = no staining; 1 = 1-25%; 2 = 26-50%, and 3 = >51% immunopositive cells). Results Twenty cases of COC were diagnosed over the study period. These…

Expression of Cytokeratin 7 and 20 in Pathological Conditions of the Bile Tract

2003

Expression of cytokeratin 7 (CK7) and cytokeratin 20 (CK20) helps to establish the origin of biliary and metastatic carcinomas. We investigated the expression of CK7 and CK20 in inflammatory, metaplastic and neoplastic conditions of the bile ducts, and evaluated possible relationships between the CK expression pattern and extrahepatic bile duct/gallbladder carcinomas (EBDCs) or intrahepatic bile duct carcinomas (IBDCs). We used immunohistochemistry for the investigation of 48 formalin-fixed, paraffin-embedded specimens grouped as: A) lithiasic or inflamed surgically resected extrahepatic bile ducts/gallbladders: all were CK7+/CK20+; B) percutaneous liver biopsies from patients with chronic …

Orthopantomography contribution to prevent isquemic stroke.

2014

Objectives: The ortopantomography (OPG) can be a valuable way for an early detection of calcified atheroma plaques, thus contributing for a preliminary stroke risk evaluation. The study looks for the existence of calcified atheroma plates through the use of OPG, comparing the results with the stenosis percentage found through eco-doppler. It has been analyzed the correlation of the number of years as a smoker, arterial hypertension and body mass index, against the risk of having calcified atheroma plaques. Study Design: Observational, transversal and prospective study with 84 patients from the Dental Center of Hospital Particular de Lisboa. First the patients answered to an inquiry and them…

Effects of the clinical characteristics of the organ donor on the long-term results of the transplant and survival of the patient, with particular re…

2007

To assess the role of the single clinical parameters of the donor on the outcome of the transplant and the variability of this in relation to the state of an optimal or borderline donor.

Serum surfactant protein D is a potential biomarker of lung damage in systemic sclerosis

2016

Background: Interstitial lung disease (ILD) complicates the course of systemic sclerosis (SSc) up to two-third of the cases, representing the main cause of death in these patients. Assessment of lung involvement by HRCT and close monitoring of lung function are mandatory. At present no serologic biomarkers are validated for the assessment for lung damage in SSc. The current study was designed to test the hypothesis that the levels of surfactant are altered in SSc compared to healthy controls. To this aim serum levels of SP-A (Surfactant Protein A) and SP-D (Surfactant Protein-D) in serum were assessed. Methods: We enrolled 12 consecutive patients (M/F: 2/10) affected by scleroderma referred…

Dental management in transplant patients

2011

Introduction: Transplant is the replacement with therapeutic purposes, of organs, tissues or cellular material for others, from a donor who is usually a human, alive or dead. In recent years, transplant organs have been developed by the advances that have occurred with immunosuppressive drugs and medical-surgical technology. Due to the frequency of transplants that are performed today, it is common to find these patients in dental clinics. Objectives: To review the literature on oral manifestations in transplant patients and general dental management and according to transplant organs (heart, lung, liver, kidney, pancreas and bone marrow). Material and Methods: For the literature review, we…

2005

2014

The objective of this cross-sectional and retrospective cohort study was (1) to determine the usefulness of intima-media thickness (IMT) in contrast to plaque assessment, (2) to examine the value of additive femoral artery sonography and (3) to identify potential risk factors for atherosclerosis and incident cardiovascular events in systemic sclerosis (SSc) and systemic lupus erythematosus (SLE) patients. In this study, 90 SSc and 100 SLE patients were examined by duplexsonography. IMT was measured in common carotid and common femoral arteries, plaques were assessed in common, internal and external carotid and common, proximal superficial and deep femoral arteries. Different definitions of …