No abstract available.

No abstract available.
Dental Porcelain* ; Resin Cements*

Wernickes encephalopathy is an illness characterized by mental disturbance, paralysis of eye movements and ataxia of gait. The specific factor for most, if not all, of these symptoms is a deficiency of thiamine. Wemicke's encephalopathy mostly occurs in developing countries when the patient is in a state such as nutritionally deprived state, anorexia nervosa, stomach cancer, long duration of parenteral nutrition. Wernickes encephalopathy was recognized as a complication of hyperemesis of pregnancy in 1914. Unfortunately, cases continue to occur. We present here a case of Wernickes encephalopathy in a 36-year-old pregnant woman. We discuss the clinical picture, histopathology, radiology, therapeutic management and prognosis with review of the literature.
Adult ; Anorexia Nervosa ; Developing Countries ; Eye Movements ; Female ; Gait Ataxia ; Humans ; Hyperemesis Gravidarum* ; Hyperthyroidism* ; Paralysis ; Parenteral Nutrition ; Pregnancy ; Pregnant Women ; Prognosis ; Radiation Oncology ; Stomach Neoplasms ; Thiamine ; Wernicke Encephalopathy*

No abstract available.

Fiber-reinforced composite(FRC) was developed as a structural component for dental appliances such as prosthodontic framework. FRC provides the potential for fabrication of a metal-free, excellent esthetic prostheses. It has demonstrated success as a result of its simple fabrication, natural colour, and marginal integrity, and fracture resistance of veneering composite resin and the FRC material. Although it has lots of merits, clinical and objective data are insufficient. The purpose of this study was to evaluate the fracture strength and marginal fitness of fiber-reinforced composite bridge in the posterior region for clinical application. Sixteen bridges of each group, Targis/Vectris(R), Sculpture-fibrekor(R)and In-Ceram, were fabricated. All specimens were cemented with Panavia 21 to the master dies. Strength evaluation was accomplished by a universal testing machine (Instron). The marginal fitness was measured by using the stereoscope (X50). The results were as follows. : 1.The fracture strength according to the materials was significantly decreaed in order In-Ceram(238.81+/-82). Targis Vectris(176.25+/-18.93), Sculpture-Fibrekor(120.35 +/-20.08) bridges. 2.FRC resin bridges were not completely fractured, while In-Ceram bridges were completely fractured in the pontic joint. 3.The marginal accuracy was significantly decreased in order Targis/Vectris (60.71micrometer), Sculpture-Fibrekor(73.10micrometer). In-Cream Bridge(83.81micrometer). 4.The fitness of occlusal sites had a lower value than the marginal sites(P<0.001), and the marginal gaps of inner site of the pontic were greater than that of outer sites of the pontic. Fiber reinforced composite bridges are new, esthetic prosthesis and can be clinically used in anterior regions and short span bridges. However, caution must be exercised when extrapolating laboratory data to the clinical situation because there are no long term clinical data regarding the overall success of the FRC.
Denture, Partial, Fixed ; Joints ; Prostheses and Implants ; Prosthodontics

Indirect composite resin are used as an popular effective esthetic material in prosthetic dentistry, often with metallic substructure that provides support for restorations. Recently, new indirect composite resins as a substitute of ceramic have been developed. These resins provide good esthetics, with a wide range of hue and chroma. And the flexural strength of those is in the range of 120-150MPa, which is higher than that of feldspathic ceramic, and similar tot hat of Dicor. Although it has many merits, one of the major clinical problems of composite resins is the bond failure between metal and resin due to insufficient interfacial bond strength. The purpose of this study was to evaluate shear bond strength of the reinforced indirect composite resin to dental alloys. Three different composite resin systems(Artglass . Sculpture , Targis ) as test groups and ceramic(VMK 68 ) as control group were bonded to Ni-Cr-Be alloy(Rexillium III ) and gold alloy(Dave 4). All specimens were stored at 37degrees C distilled water for 24 hours and the half of specimens were thermocycled 2000 times at temperature from 5degrees C to 60degrees C. The shear bond strengths of reinforced indirect composite resins to dental alloys were measured by using the universal testing machine, and modes of debonding were observed by stereoscope and scanning electron microscope. The results were as follows : 1. The shear bond strengths of reinforced indirect composit resins to dental alloys were approximately half those of ceramic to dental alloys(P<0.01). 2. There was no significant difference between the shear bond strength of several reinforced indirect composite resins to metal. 3. Alloy type did not affect on the shear bond strengths of resin to metal, but the shear bond strengths of ceramic to gold alloys were higher than those of ceramic to Ni-Cr alloys(P<0.05). 4. The shear bond strenghts of Artglass and Targis to gold alloys were significantly decreased after thermocycling treatment(P<0.01). 5. Sculpture showed cohesive, adhesive, and mixed failure modes, but Artglass and Targis showed adhesive or mixed failures. And ceramic showed cohesive and mixed failures.
Adhesives ; Alloys ; Ceramics ; Composite Resins* ; Dental Alloys* ; Dentistry ; Esthetics ; Gold Alloys ; Sculpture ; Water

Radiological investigation in patients with clonorchiasis is very important as this is the only method of evaluating the severity of clonorchiasis. In order to correlate the radiologic and pathologic findings of clonorchiasis, fourteen rabbits infested with Clonorchis sinensis and five control rabbits were examined radiologically by ultrasonography, computed tomography and cholangiography and the results were correlated with pathologic findings. Dilatation of the intrahepatic small bile ducts of the liver was due to obstruction by flukes: oval or elliptical small filling defects or irregular margin of the bile ducts on cholangiogram or intraluminal echoes on sonogram represented flukes per se; periductal thickening on sonogram and periductal enhancement of bile ducts on CT were due to inflammatory cell infiltration, adenomatous hyperplasia and periductal fibrosis: band like enhancement at the periphery of the liver on CT represented proliferated bile ducts, destruction of liver cells and resultant fibrosis. The study confirmed the pathological bases for the radiological findings of clonorchiasis in liver and bile ducts and will, perhaps, serve as a basis for the future radiologic-pathological correlation of clonorchiasis and in further clinical and experimental researches in the biliary tract diseases.
Bile Ducts ; Biliary Tract Diseases ; Cholangiography ; Clonorchiasis* ; Clonorchis sinensis ; Dilatation ; Fibrosis ; Humans ; Hyperplasia ; Liver ; Methods ; Rabbits* ; Trematoda ; Ultrasonography

OBJECTIVE: The surgical treatment of symptomatic degenerative disc disease remains one of the most controversial topics among spine surgeons. Recently, advances in many endoscopic surgical techniques have resulted in lowered morbidity, expense, and suffering associated with their open surgery counterparts. The purpose of this study is to evaluate the efficacy of laparoscopic anterior lumbosacral interbody fusion in our patients with symptomatic degenerative disc disease. PATIENTS AND METHODS: We performed laparoscopic anterior interbody fusion for degenerative disc disease at L5-S1 in 26 patients who were unresponsive to conservative treatments for 1 year, from Oct. 1996 to Dec. 1997. This technique consists of a four-puncture laparoscopic approach with a 10mm trocar at the umbilicus for laparoscope, two 5mm trocars at left and right flanks for dissection, and a 15mm trocar at suprapubic area for working port. We performed complete discectomy and stabilized the spine with carbon interbody fusion cages filled with allograft bone. RESULTS: Laparoscopic fusion at L5-S1 was successful in 22 of 26 patients and the remaining four patients were successfully converted to minilaparotomy. The operation time averaged 150 minutes, hospitalization 4.1 days and average blood loss was 90cc. The mean follow-up period was 16.8 months. Radiographic fusion was achieved in 23 of 26 patients(88.5%) and clinical results showed excellent in 11/26, good in 11/26, fair in 3/26, poor in 1/26 according to Macnab's criteria. There were four complications; retroplacement of cages(1), transient dry ejaculation (1), transient urinary bladder dysfunction(1) and malposition of cages(1). CONCLUSION: Laparoscopic fusion at L5-S1 in degenerative disc disease seems to be safe, with satisfactory clinical results. Main advantage are early recovery and short hospitalization time compared with conventional technique.
Allografts ; Carbon ; Diskectomy ; Ejaculation ; Follow-Up Studies ; Hospitalization ; Humans ; Laparoscopes ; Laparotomy ; Male ; Spine* ; Surgical Instruments ; Umbilicus ; Urinary Bladder

BACKGROUND: We could establish a streptonigrin-resistant strain called SR-1 strain from Staphylococcus aureus ATCC 6538 as a parental strain and characterize SR-1 strain as defective in the iron-uptake mechanisms including production of siderophores and expression of transferrin-binding protein on the cell wall. We performed this study to elucidate effect of the iron-uptake mechanisms on the growth in human body fluids. METHODS: Growth kinetics of SR-1 strain were compared with those of the parental strain and the increase of unsaturated iron-binding capacity (UIBC) was measured. Siderophore production and expression of transferrin-binding protein were detected by CAS diffusion assay and ligand-blot method probed with human transferrin conjugated horseradish peroxidase, respectively, as the strains were cultivated in normal pooled sera, ascitic fluid and pleural effusion. RESULTS: Siderophores activity in the body fluids could not be detected by the CAS diffusion assay. The parental strain expressed the transferrin-binding protein on the cell wall during the growth in ascites and pleural effusion except the sera whereas SR-1 strain did not. Growth kinetics showed that SR-1 strain grew sluggish compared to the parental strain. The peak of increase of UIBC of the parental strain was observed at the mid-exponential growth phase and the increase of UIBC of SR-1 strain was either lower than that of the parental strain or not changed. CONCLUSION: The iron-uptake mechanisms of S. aureus, especially expression of transferrin-binding protein, play a significant role in growing in the body fluids.
Ascites ; Ascitic Fluid ; Body Fluids ; Cell Wall ; Diffusion ; Horseradish Peroxidase ; Human Body* ; Humans* ; Iron* ; Kinetics ; Parents ; Pleural Effusion ; Siderophores ; Staphylococcus aureus* ; Staphylococcus* ; Streptonigrin ; Transferrin

BACKGROUND AND PURPOSE: There have been a few national population-based epidemiological studies of myasthenia gravis (MG) with wide variation of incidence and prevalence rates worldwide. Herein we report the first nationwide population-based epidemiological study of MG in Korea. METHODS: We attempted to estimate the incidence and prevalence rates of MG using the Korean National Health Insurance claims database for 2010 to 2013. Cases with MG were defined as those having claim records with a principal diagnosis of MG and the prescription of acetylcholinesterase inhibitors or immunosuppressive agents including corticosteroids and azathioprine within 2 years after the diagnosis. The year 2010 was set as a washout period, such that patients were defined as incident cases if their first records of MG were observed in 2011. RESULTS: In 2011 there were 1,236 incident cases, and the standardized incidence rate was 2.44 per 100,000 person-years. The standardized prevalence rates were 9.67 and 10.66 per 100,000 persons in 2010 and 2011, respectively. The incidence and prevalence rates peaked in the elderly population aged 60 to 69 years for both sexes. CONCLUSIONS: This is one of the largest national population-based epidemiological studies of MG, and it has confirmed the high incidence and prevalence rates of MG in the elderly population of South Korea.
Adrenal Cortex Hormones ; Aged ; Azathioprine ; Cholinesterase Inhibitors ; Diagnosis ; Epidemiologic Studies ; Epidemiology ; Humans ; Immunosuppressive Agents ; Incidence* ; Korea* ; Myasthenia Gravis* ; National Health Programs* ; Prescriptions ; Prevalence*