No abstract available.

Polymethylmethacrylate(PMMA) is currently commonly used material for the reconstruction of bone defects and fixation of joint prosthetics following congenital and acquired causes. Although PMMA has widespread use, it does not possess the ideal mechanical characteristics with osteoconductivity and osteoinductivity required. In order to overcome these problem, addition of bovine bone drived defatting demineralized bone (BDB) powders to a PMMA bone cement was done for improvement of physical property and bone forming characteristics of composite. In order to investigate the influence of BDB reinforcement on the PMMA, we measured physical property of compressive, tensile, flexural strength, and scanning electron microscopic examinations. The results were obtained as follows : 1. The PMMA forms a solid cellular matrix with open cells about above 100micrometer in variable size and incorporating BDB. BDB aggregates inside the cells form a porous network that is accessible from the outer surface. 2. The physical properties were compressive strength of mean 22.74+/-1.69MPa, tensile strength of mean 22.74+/-1.69MPa, flexural strength of mean 77.53+/-6.93MPa. Scanning electron microscopic examinations were revealed that there was DBD particles form a highly porous agglomerates. BDB can be added PMMA in the form of dried powders, the composites are applicable as bone substitutes. BDB and PMMA mixture is shown to produce a class of composites that due to their microstructure and improved mechanical properties may be suitable for application as bone substitutes. The mechanical and material properties of the BDB-PMMA bone substitute composites are competitive with those properties of a porous ceramic matrix of other hydroxyapatite and with those of natural bones.
Bone Substitutes ; Ceramics ; Compressive Strength ; Durapatite ; Joints ; Polymethyl Methacrylate* ; Powders ; Tensile Strength

Adult ; Ameloblastoma ; Curettage ; Female ; Humans ; Mandible ; Mouth ; Odontogenic Tumors ; Prognosis ; Recurrence

Aged ; Carcinoma, Mucoepidermoid ; Cystadenocarcinoma, Papillary ; Cystadenoma ; Diagnosis, Differential ; Female ; Follow-Up Studies ; Humans ; Recurrence ; Salivary Glands ; Salivary Glands, Minor ; Tongue

Nephrotic syndrome (NS) is a hypercoagulable state in which children are at risk of venous thromboembolism. A higher risk has been reported in children with steroid-resistant NS than in those with steroid-sensitive NS. The mortality rate of cerebral venous sinus thrombosis (CVST) is approximately 10% and generally results from cerebral herniation in the acute phase and an underlying disorder in the chronic phase. Our patient initially manifested as a child with massive proteinuria and generalized edema. He was treated with albumin replacement and diuretics, angiotensin-converting enzyme inhibitor, and deflazacort. Non-contrast computed tomography showed areas of hyperattenuation in the superior sagittal sinus when he complained of severe headache and vomiting. Subsequent magnetic resonance imaging revealed empty delta signs in the superior sagittal, lateral transverse, and sigmoid sinuses, suggesting acute CVST. Immediate anticoagulation therapy was started with unfractionated heparin, antithrombin III replacement, and continuous antiproteinuric treatment. The current report describes a life-threatening CVST in a child with steroid-dependent NS, initially diagnosed by contrast non-enhanced computed tomography and subsequently confirmed by contrast-enhanced magnetic resonance imaging, followed by magnetic resonance venography for recanalization, addressing successful treatment.

Background: This study was conducted to evaluate the analytical performance of the SelexOnTM B-type natriuretic peptide (BNP) assay (Osang Healthcare Inc., Korea), a new rapid lateral flow immunoassay for point of care (POC) testing using whole blood. Methods: The imprecision, linearity, and method comparison of SelexOnTM BNP assay were evaluated. Two commercial BNP assays, the ADVIA Centaur® BNP (Siemens Health Care diagnostics Inc., USA) and the Triage® BNP assays (Alere, USA), were included for method comparison using 100 whole blood samples from patients. The reference interval was verified using 120 residual samples from health examination participants. Results: The SelexOn BNP had total CVs of 20.3%, 13.3%, and 10.3% in BNP concentrations of 89.44 pg/mL, 480.71 pg/mL, and 1,201.84 pg/mL of control materials, respectively. Linearity was observed from 56 pg/mL to 1544 pg/mL. The SelexOn BNP (y) regression equation was y=0.9706x-21.68 with Centaur BNP (x) (r=0.930) and y=0.7600x+0.0506 with Triage BNP (x) (r=0.845), respectively. The predicted mean difference (%) of the SelexOn BNP at the clinical decision levels (100 pg/mL) was up to 25% lower than the two comparative methods. The SelexOn BNP levels were below 50 pg/mL in 114 (95%) of the 120 samples. Conclusions The SelexOn BNP using EDTA was developed as a POC test for differential diagnosis or treatment monitoring for acute heart failure. However, clinical decision values must be improved to be compatible with other BNP methods.

In a 52-year-old man who presented with acute myocardial infarction, dual coronary arteriovenous fistulas from the right coronary artery and left circumflex artery both which drained into the coronary sinus were detected on coronary arteriography.This is the first case of dual coronary arteriovenous fistulas draining into the coronary sinus.
Arteries ; Arteriovenous Fistula* ; Coronary Sinus* ; Coronary Vessels ; Humans ; Middle Aged ; Myocardial Infarction*

Interferon has been tried as a drug of choice in patients with chronic active hepatitis by hepatitis B virus infection since Greenberg has reported the effectiveness of interferon in 1976. The effects of interferon therapy have been reported variably and various complications such as fever, myalgia, arthralgia, flu-like symptoms, temporary leukopenia and thrombocytopenia, alopecia, cardiovascular symptoms and autoimmune diseases have been reported. But rhabdomyolysis has been rarely reported in the interferon therapy of chronic hepatitis B. There were some cases of rhabdomyolysis with acute renal failure in the interferon therapy which was designed for chemotherapy of malignant melanoma and for chronic active hepatitis C virus infection. We reported a case of rhabdomyolysis with acute renal failure developed during the interferon therapy in a patient with chronic active hepatitis B.
Acute Kidney Injury* ; Alopecia ; Arthralgia ; Autoimmune Diseases ; Drug Therapy ; Fever ; Hepatitis B virus ; Hepatitis B, Chronic ; Hepatitis, Chronic* ; Humans ; Interferons* ; Leukopenia ; Melanoma ; Myalgia ; Rhabdomyolysis* ; Thrombocytopenia

BACKGROUND: Achilles tendon thickness (ATT) has been associated with increased cardiovascular risk in patients with familial hypercholesterolemia (FH). The aim of this study is to establish the correlation among ATT, obesity and established cardiovascular risk factors such as diabetes mellitus, hypertension, coronary artery disease, peripheral artery disease, smoking, and dyslipidemia. METHODS: In total, 19 patients (male 31.5%, mean age 60.0+/-12.5) with dyslipidemia and 96 control (male 64.6%, mean age 62.3+/-8.5) were enrolled. ATT was measured by ultrasonography. Anterioposterior diameter which represents the ATT was measured bilaterally, 4 cm above the insertion of Achilles tendon to the tuber calcite. Dyslipidemia was defined as elevated total cholesterol, triglyceride, or LDL cholesterol, or low levels of HDL cholesterol. RESULTS: There was no significant differences including ATT between the two groups (for ATT, dyslipidemia group, 0.44+/-0.04 vs control, 0.45+/-0.02 cm, p=0.783). There was no significant correlation between ATT and other cardiovascular risk factors except weight (r=0.34, p=0.007) and body mass index (r=0.63, p<0.001). Dyslipidemia was not significantly correlated with ATT (r=0.02, p=0.783). Use of statin was not significantly correlated with ATT (r=0.04, p=0.605). CONCLUSION: ATT was not significantly increased in patients with dyslipidemia. Lipid accumulation of Achilles tendon was not found in patients with dyslipidemia in this study.
Achilles Tendon* ; Atherosclerosis ; Body Mass Index ; Calcium Carbonate ; Cholesterol ; Cholesterol, HDL ; Cholesterol, LDL ; Coronary Artery Disease ; Diabetes Mellitus ; Dyslipidemias ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors ; Hyperlipoproteinemia Type II ; Hypertension ; Obesity ; Peripheral Arterial Disease ; Risk Factors* ; Smoke ; Smoking ; Triglycerides ; Ultrasonography

Langerhans cell histiocytosis (LCH) is reported less frequently in adults than in children. The most common site of involvement in adults is the bone, accounting for 30-50% of cases. The gastrointestinal tract is very rare, accounting for approximately 2%. We present a case of Langerhans cell histiocytosis that simultaneously invaded multiple organs, including the stomach and colon, in an adult. A 37-year-old woman with no underlying disease complained of chest discomfort and a palpable right submandibular mass. A right Level II neck mass and mediastinal LN enlargement were confirmed on the pharynx and chest CT scan. Multiple subepithelial masses with central ulceration and erosion were observed in the corpus and fundus on the esophagogastroduodenoscopy and in the right colon on the colonoscopy. The histopathology findings were the same in each tissue biopsied from the stomach, colon, and right neck lymph nodes. Langerhans cells with classical reniform nuclei and prominent eosinophils invaded the normal glands, and S100 and CD1a were positive in the immunohistochemical stain. Gastrointestinal involvement of LCH in adults is rare, asymptomatic,and can involve multiple digestive organs simultaneously, so upper endoscopy and colonoscopy should be considered for a diagnosis.