No abstract available.
Cell Proliferation* ; Cytomegalovirus* ; Humans*

Polypoid prolapse of mucosal folds can occur at various sites and in various conditions predominantly associated with strain during defecation. There are two well known types of mucosal prolapse syndrome(MPS), the inflammatory cloacogenic polyp(ICP) and the mucosal redundant polyp associated with diverticular disease(N4RPD). ICP is a mucosal prolapse of the anorectal junction and MRPD is a proximal analogue involving the sigmoid colon. We experienced two cases of eroded polypoid hyperplasia(EPH) of the rectosigmoid colon which manifested as a huge gyriform mass simulating the gross features of gastrointestinal lymphomas or other malignant tumors. The EPH consisted of confluent polypoid mucosal folds with rolled-up submucosa to form stalk, The polypoid lesion represented hyperplastic epithelium, erosion of the mucosal surface and congestive vascular ectasia of lamina propria and submucosa. To explain the whole morphologic features, the initial phenomenon should be the mucosal prolapse. Vascular stretching with ischemic erosion of the mucosal surface and compensatory epithelial hyperplasia ensue as the result. The ominous endoscopic and gross features of EPH should be kept in mind to avoid erroneous radical surgery.

To elucidate the significance of the nesidiodysplasia of pancreas, histological re-evaluation and immunohistochemical studies for insulin, glucagon and somatostatin were done on 16 consecutive cases (5 premature babies, 2 stillborns, 5 infants and 3 adults) in which paraffin blocks of the pancreas were available. Only one infant was hypoglycemic. All 16 pancreases showed changes of nesidiodysplasia which appeared immunohistochemically to have isulin, glucagon and /or somatostatin. The histologic patterns of nesidiodysplasia included ductoendocrine proliferation, endocrine cell dysplasia, adenomatosis, septal islet, islket cell hypertrophy and islet hypertrophy. All the patterns of nesidiodysplasia except for the adenomatosis were seen in premature babies, infants, stillborns and adults with or without hypoglycemia. The adenomatosis was found only in the hypoglycemic infant. The result suggests that all patterns of nesidiodysplasia of other than the adenomatosis does not imply the pathologic basis of hypoglycemia.
Infant ; Adult ; Male ; Female ; Humans

PURPOSE: The aim of the study is to determine factors influencing quality of caregiving by caregivers for the elderly with dementia. METHODS: Data were collected from 87 caregivers for elders with dementia who had visited in Busan Metropolitan Center for Dementia and D-University hospital outpatient center from July 10 to September 30, 2015. A self-reported questionnaire was used to assess the severity of the elders' dementia and knowledge of dementia, burdens and quality of caregiving by the caregivers. The SPSS 21.0 version program was used for data analysis. Data were analyzed using descriptive statistics, Pearson's correlation, t-test, ANOVA and multiple regression. RESULTS: Significant predictors of quality of caregiving by caregivers included caregivers' burdens (explanation power 25%), knowledge of dementia (explanation power 4%) and levels of education (explanation power 3%). These factors explained 32.3% of the variances in quality of caregiving. CONCLUSION: Burdens on caregivers were a major factor that decreased quality of caregiving, and knowledge of dementia was a factor that increased it. These findings show that educational programs and intervention for reducing burdens and improving knowledge of dementia are necessary to improve quality of caregiving by caregivers.
Aged ; Busan ; Caregivers* ; Dementia* ; Education ; Humans ; Outpatients ; Quality of Health Care ; Statistics as Topic

STATEMENT OF PROBLEM: Second-generation indirect composite resins have been improved flexural strength, compressive strength, hydrolytic degradation resistance, wear resistance compared to first-generation indirect composite resins, but there are still some problems as hydrolysis and low wear resistance. Some manufacturers claim that wear resistance of their materials has been improved, but little independent study has been published on wear properties of these materials and the properties specified in the advertising materials are largely derived from in-house or contracted testing. PURPOSE: This study was to evaluate the wear of indirect composite resins (SR Adoro, Sinfony, Tescera ATL) and gold alloy against the human enamel. MATERIAL AND METHOD: Extracted human incisors and premolars were sectioned to 2*2*2mm cube and embedded in the clear resin and formed conical shaped antagonist to fit the jig of pinon-disk tribometer. Total 20 antagonists were stored in distilled water. Five disk samples, 24mm in diameter and 1.5mm thick, were made for each of three groups of indirect composite resins and gold alloy group, and polished to #2,000 SiC paper on auto-polishing machine. Disk specimens were tested for wear against enamel antagonists. Wear test were conducted in distilled water using a pin-on-disk tribometer under condition (sliding speed 200rpm, contact load 24N, sliding distance 160m). The wear of the enamel was determined by weighing the enamel antagonist before and after test, and the weight was converted to volumes by average density. The wear tracks were analyzed by scanning electron microscopy and surface profilometer to elucidate the wear mechanisms. Statistical analysis of the enamel wear volume, wear track depth and wear tract width of disk specimens were accomplished with one-way ANOVA and the means were compared for significant differences with Scheffe's test. RESULTS: 1. The enamel wear was most in gold alloy, but there were no statistically significant differences among all the groups (P>.05). 2. In indirect composite resin groups, the group to make the most shallow depth of wear tract was Sinfony, followed by Tescera ATL, SR Adoro (P<.05). Gold alloy was shallower than Sinfony, but there was no statistically significant difference between Sinfony and gold alloy (P>.05). 3. The width of wear tract of SR Adoro was larger than the other groups (P<.05), and there were no statistically significant differences among the other groups (P>.05). 4. SEM analysis revealed that Sinfony and gold alloy showed less wear scars after test, Tescera ATL showed more wear scars and SR Adoro showed the most. CONCLUSION: Within the limits of this study, Sinfony and gold alloy showed the least wear rates and showed similar wear patterns.
Alloys ; Bicuspid ; Cicatrix ; Composite Resins* ; Compressive Strength ; Dental Enamel* ; Humans* ; Hydrolysis ; Incisor ; Microscopy, Electron, Scanning ; Water

PURPOSE: The purpose of this study was to compare the fracture strength of the zirconia monolithic all-ceramic crowns according to the thickness (0.5mm, 0.8mm, 1.1mm) and metal-ceramic crowns (1.0mm, 1.5mm). MATERIAL AND METHOD: Twelve crowns for each of 3 zirconia crown groups were fabricated using CAD/CAM system (Kavo, Germany) and twelve crowns for each of 2 metal-ceramic crown groups were made by the conventional method. All crowns were luted to the metal dies using resin cement. Half of the specimens were exposed to thermocycling (5-55degrees C, 1 Hz) and cyclic loading (300,000 cycles, 50N). Subsequently, all crowns were mounted on the testing jig in a universal testing machine. The load was directed at the center of crown with perpendicular to the long axis of each specimen until catastrophic failure occurred. Analysis of variance and Tukey multiple comparison test (P<.05) were used for statistical analysis of all groups, and paired t-test (P<.05) was followed for statistical comparison between each groups'fracture load before and after cyclic loading. RESULTS: 1. The fracture strength of the zirconia monolithic crowns and the metal-ceramic crown increased as thickness increased (P<.05). 2. The cyclic loading and thermocycling significantly decreased the fracture strength of the zirconia monolithic crowns (P<.05). 3. The standard deviation of fracture strength of the zirconia monolithic crowns was very low. CONCLUSION: The fracture strength of the zirconia monolithic crowns for the posterior area tends to be higher with thickness increased and 0.8mm or over in thickness is recommended to have similar or over the fracture strength of metal-ceramic crowns.
Axis, Cervical Vertebra ; Crowns* ; Resin Cements

No abstract available.
Cytomegalovirus* ; Humans* ; Methotrexate* ; Papaverine*

Nutrition is thought to be much more important to the handicapped for their growth and development and successful management of their disease because they have much more complexed problems in physical, emotional, familial, and socioeconomic aspects. The authors determined number of erythrocytes and leukocytes, quantity of hemoglobin, hematocrit, reticulocyte, number of platelets for the survey of anemia to evaluate the nutritional status in mental and physical handicapped. Mean Corpuscular volume, Mean Corpuscular Hemoglobin and Mean Corpuscular Hemoglobin Concentration were calculated as usual according to wintrobe. Total iron binding capacity and serum iron were also measured in the hadicapped. The study group consists of total III handicapped children, who were composed of 13 first visitors to Out Patient Department, 51 hopsitalized patients in Rehabilitation Hospital, and 47 patients attending a Special Elementary School for the handicapped. Of the III subjects, 58 had cerebral plasies, 49 poliomyelitises and 4 had other orthopedic problems. Results. 1. Anemia were seen in 14 subjects, composed of 4 first visitors to O.P.D.(28.6% of all the anemias, 30.8% of all the O.P.C. subjects), 7 hospitalized subjects(50% of all the anemias, 13.7% of all the hospitalized subjects) and 3 Special School subjects(21.4% of all the anemias, 6.4% of Special School subjects). Incidence of anemia was higher in O.P.D. subjects than in the subjects of other groups. 2. Incidence of anemia by the disease entities was higher in the indivisuals with cerebral palsy, 7 in number(50% of all the anemias, 11.1% of all the cerebral palsy subjects) than in 5 those with poliomyelitis (35.7% of all the anemias, 10.2% of all the poliomyelitis subjects), or in 2 other subjects. 3. Incidence of anemia by the age was higher in the subjects below 6 years of age whose number was 5(35.7% of all the anemias, 45.5% of all the subjects below 6 years of age) than in the subjects above 9 years of age whose number was 9(64.3% of all the anemias, 11.1% of all the subjects above 9 years of age). The incidence of anemia in the subjects above 12 years of age was 17.7%(seven of the nine anemias above 9 years of age). 4. Five of the seven cerebral palsy patients with anemia were below 6 yeas of age(45.5% of all the cerebral palsy subjects below 6 years of age). All of the five poliomyelitis patients with anemia were above 9 years of age(11.1% of all the poliomyelitis subjects above 9 years of age). 5. Iron deficiency anemia was noted in 6 of 14 anemia patients(43% of all the anemias), which were composed of 2 cerebral palsy patients below 6 years of age, 3 poliomyelitises and one patients with congenital hip dislocation above 9 years of age.
Anemia* ; Anemia, Iron-Deficiency ; Cerebral Palsy ; Disabled Children ; Disabled Persons* ; Erythrocyte Indices ; Erythrocytes ; Growth and Development ; Hematocrit ; Hip Dislocation, Congenital ; Humans ; Incidence ; Iron ; Leukocytes ; Nutritional Status ; Orthopedics ; Poliomyelitis ; Rehabilitation ; Reticulocytes

The number of Kupffer cells was evaluated in hepatocellular carcinomas, including 18 primary lesions, 3 tumor emboli within the portal vein radicles and 4 metastatic lesions and in non-neoplastic liver adjacent to the primary lesions, to persue the origin of Kupffer cells dwelling in hepatocellular carcinoma. Hepatocellular carcinomas of the sinusoidal(trabecular) type were carefully selected, and excluded were those carcinomas which showed inflammation or other changes evoking inflammation. The immunohistochemical stains for CD 68 and lysozyme were done to identify Kupffer cells and to draw the mean Kupffer cell number per high power microscopic field of each lesion. Kupffer cell was most numerous in primary lesions followed by tumor emboli and still fewer in metastatic lesions. The Kupffer cell number in the primary lesions of hepatocellular carcinoma was in turn smaller than that of the adjacent non-neoplastic liver. The results suggest that, during the early neoplastic transformation, sinusoids of the non-neoplastic liver could creep into the carcinomatous tissue accompanying Kupffer cells.
Carcinoma, Hepatocellular ; Neoplasm Metastasis

We report a medullary carcinoma of the thyroid gland with a coexisting occult sclerosing papillary carcinoma. This rare case, in that the two types of carcinoma are completely separated and not intermixed together, is different from the previously reported mixed follicular and parafollicular cell carcinomas of the thyroid gland, so-called "differentiated thyroid carcinoma, intermediate type". The two separate tumors of the present case are undoubtedly of coincidental double primaries, and it can be a assumed that at least some of the mixed follicular and parafollicular cell carcinomas are results of collision of carcinomas derived from two embryogenetically different cell types.