Glycosaminoglycans (GAG) are linear, highly negatively charged polysaccharides that may perform an important role in biomineralization. GAG were isolated from chicken eggshell membranes and calcified shells. Disaccharide compositional analysis was performed using liquid chromatography-mass spectrometry. All 4 groups of GAG - hyaluronan (HA), keratan sulfate (KS), chondroitin sulfate (CS), and h...

BACKGROUND Calcified amorphous tumor of the heart is a rare, non-neoplastic cardiac mass characterized by nodular calcium in the background of amorphous degenerating fibrinous material. Clinical diagnosis of calcified amorphous tumor can be difficult, and current single imaging techniques do not specifically differentiate calcified amorphous tumor from other cardiac tumors such as calcified atr...

In 1988, the American College of Cardiology/American Heart Association Task Force on Assessment of Diagnostic and Therapeutic Cardiovascular Procedures published a report regarding appropriate utilization of PTCA in the treatment of patients with coronary artery disease. In that report, moderate-to-heavy calcification (Type B characteristic) was considered an important risk factor for procedura...

AIMS The optimal management of asymptomatic subjects at intermediate risk of coronary artery disease (CAD) is often uncertain. Re-stratification to a high- or low-risk category may enable optimization of preventative strategies. Coronary computed tomographic angiography (CCTA) enables a minimally invasive assessment of coronary artery plaque quantity and composition. Non-calcified plaque by CCT...

background and aims. the purpose of this study was to identify patients at the risk of cerebrovascular attack (cva) by detecting calcified carotid artery atheroma (ccaa) in panoramic radiography and evaluating their risk factors. materials and methods. a total of 960 panoramic radiographs of patients above 40 years old ‎were evaluated. doppler sonography (ds) was performed for patients who show...

BACKGROUND Aortic valve (AV) calcification preferentially occurs on the fibrosa side while the ventricularis side remains relatively unaffected. Here, we tested the hypothesis that side-dependent activation of bone morphogenic protein (BMP) pathway in the endothelium of the ventricularis and fibrosa is associated with human AV calcification. METHODS AND RESULTS Human calcified AVs obtained fr...

background and aims. this study was designed to evaluate the prevalence of calcified carotid artery in 50 year-old and older postmenopausal dental outpatients for early diagnosis of individuals at risk of stroke. materials and methods. this is a descriptive study of 200 panoramic radiographs. these radiographs included postmenopausal women referring to the department of oral medicine at shahid ...

BACKGROUND Vascular calcified plaque, a measure of subclinical cardiovascular disease (CVD), is unlikely to be limited to a single vascular bed in patients with multiple risk factors. Consideration of vascular calcified plaque as a global phenomenon may allow for a more accurate assessment of the CVD burden. The aim of this study was to examine the utility of a combined vascular calcified plaqu...

Introduction: Post-traumatic non-vital teeth is one of the indications for One Visit Endodontic. Trauma to may arise from conditions that cause become necrotic so will look darker and experience discoloration. Clinical indicate death dental pulp require endodontic treatment. This situation discoloration occur as a result metamorphosis calcified pulp. Internal whitening treatment can be done aft...

OBJECTIVE Because of beam-hardening and blooming artifacts, it is difficult to determine the degree of stenosis caused by calcified coronary artery plaques at coronary CT angiography (CTA). Our goal was to determine how accurate coronary CTA is in evaluating these lesions. MATERIALS AND METHODS Thirty-one patients who had one or more calcified coronary artery plaques at coronary CTA underwent...