objectives: attached gingival width (agw) is an important marker for diagnosis of periodontal disease and normal gingival sulcus depth (gsd) is a sign of healthy periodontium. the aim of this study was to determine the agw and gsd in3-15 year-olds with three dentition systems in isfahan in 2001.   methods: a total of 360 students (120 students in each system) eligible for this cross sectional s...

Abstract. Recently, we reported the characterization of the glycans attached at the 11 N-glycosylation sites of Hepatitis C virus E2 envelope glycoprotein by tandem mass spectrometry. Infections caused by Hepatitis C virus represent the main cause of liver diseases such as hepatitis, cirrhosis and hepatocellular carcinoma. The N-linked sugars consist primarily of high mannose glycans, with stru...

A 56-year-old man was admitted to our hospital for coronary artery bypass graft surgery. Preoperative transthoracic echocardiography revealed thickening of the anterior leaflet of the tricuspid valve, and transesophageal echocardiography showed oval and irregular-shaped masses, featuring well-demarcated borders and a homogenous texture, attached to the atrial side of the anterior leaflet of the...

A 41-year-old African male presented with worsening dyspnea and cachexia concerning for congestive heart failure. Transesophageal echocardiogram revealed a large mass attached to the aortic valve leaflet, mass attached to the flail anterior mitral valve leaflet, severe pulmonary hypertension and dilatation of the aortic root along with fistula between the right coronary aortic cusp and the righ...

A 76-year-old female present to the emergency department with dysarthria, dizziness, dyspnea. The patient had hypertension and atrial fibrillation. Brain MRI revealed right cerebellar infarction. Transthoracic echocardiography showed a large round mass in the left atrium. Transesophageal echocardiography showed large complex echogenic round mass lesion attached on left atrial side of interatria...

A 16-year-old boy was submitted to a cardiac examination after an episode of faintness. A transthoracic echocardiogram was performed, which revealed a very mobile multicystic tumor attached to the mitral valve. A small solid mass adherent to the cysts was better defined by transesophageal echocardiography. The patient was submitted to cardiac surgery consisting of tumor resection and a mitral p...

Total internal reflection fluorescence microscopy can detect and image single fluorescently labeled molecules close to a surface with high temporal spatial resolution. Despite the specificity introduced by fluorescent label, it is not universal, label must be attached individual proteins through genetic engineering or designed antibodies. Mass photometry (MP) interferometrically detects elastic...

Most reactions can be performed in solution and on a surface, yet the challenges faced in applying known reactions or in developing entirely new reactions for modifying surfaces remain formidable. The products of many reactions performed in solution can be characterized in minutes, and even products having complex structures can be characterized in hours. When performed on surfaces, even the mo...

Four months previously, the patient had presented to another clinic with a painless mass in the right parotid region. There was no skin lesion at that time. A fine needle biopsy was performed. The pathology results indicated that the mass was a malignant tumor, and the surgeon suggested total parotidectomy; however, the patient was afraid of surgery and did not seek medical attention again unti...