An epidemiological investigation was conducted on Metagonimus yokogawai infection in Hadong Gun (County), Gyeongsang Nam Do, Korea, and following findings were obtained. Overall prevalence rate of Metagonimus yokogawai infection was 29.1 percent from a total of 1,163 inhabitants examined. By area of river and stream, Seomjin-gang R.: 9.5 percent (out of 95 inhabitants examined) in Jeondo Ri in the lower river, 19.9 percent (156) at Dugog Ri near Hadong town, and 90.8 percent (65) in Tab Ri of Hwagae Myeon where Hwagae-cheon Stream joins; Hwagae-Cheon Stream: 42.2 percent (45) in Yonggang Ri of the middle stream and 27.5 percent (72) in Daeseong Ri of the upper stream; Hoengcheon-gang R.: 54.7 percent (161) in Gojeol Ri of the lower river, 40.6 percent (128) in Hoengcheon Ri of the middle stream, and 5.4 percent (93) in Jungi Ri of the upper stream, and 43.8 percent (89) in Uge Ri located along a tributary of the Hoengcheon-gang R. and 4.0 percent (101) in Jangam Ri which is located about 4 km away from the river; Deogcheon-gang R.: 18.5 percent (54) in Munam Ri; Gwangog-cheon Stream: 2.8 percent (107) in Gwangog Ri. The difference in prevalence rate of the infection by area was correlated with the opportunity and amount of raw eating of sweetfish by the inhabitants in the respective areas. By age and sex, the overall prevalence rate increased from young age group and reached a peak at 20-29 age group and then the rate decreased gradually. In high endemic areas, however, a peak level of the rate lasted up to 40-49 age group in male. On the other hand, in low endemic areas, the rate was significantly lower in female, though moderate level of the infection was seen in male. The overall prevalence rate was higher in male than in female and the difference was greater in middle age groups. The most significant mode of infection by the inhabitants was the raw eating of sweetfish which commonly harbour metacercariae of M. yokogawai during summer through autumn. Besides, it was noted that the infection can be acquired through contamination with the metacercariae on food of various side-dish and kitchen utensils as well as on hands of a cook when such fish are prepared or handled. The inhabitants usually begin to acquire infection from early June of a year when fishing of sweetfish opens and acquire infection more frequently in July and August when fish are caught more productively and favored for raw consumption by inhabitants. From September, sweetfish are no more favored for raw consumption and accordingly are dried and cooked in this season. The infection in the sweetfish Plecoglossus altivelis as the second intermediate host was first observed from May with low level of infection and the intensity of infection in a fish rapidly increased until reaching a peak in October when sweetfish season normally ends. The first intermediate host snail of M. yokogawai in this area was Semisulcospira coreana (Martens) which is widely distributed in the streams and rivers in this locality.
parasitology-helminth-trematoda ; Metagonimus yokogawai ; metacercaria ; Plecoglossus altivelis ; epidemiology

No abstract available.
Extremities*

No abstract available.
Animals ; Neurons* ; Rats*

No abstract available.
Cytomegalovirus Infections*

No abstract available.
Ascites* ; Hernia, Umbilical* ; Leiomyoma*

No abstract available.
Autopsy* ; Down Syndrome* ; Leukemia* ; Megakaryocyte Progenitor Cells*

No abstract available.
Autopsy* ; Down Syndrome* ; Leukemia* ; Megakaryocyte Progenitor Cells*

PURPOSE: This study aimed to determine the appropriate stimulus strength that could result in a positive effect on the ankle joint spasticity when patients with chronic stroke performed whole body vibration (WBV) exercise. METHODS: Among 72 patients who were diagnosed with stroke at least 6 months ago, those able to perform a half squat pose with ambulation issues due to ankle joint spasticity (modified Ashworth scale, MAS≥2) were included for analysis. Individuals participated in four different frequencies of vertical WBV exercise; 0 Hz, 10 Hz, 20 Hz, and 30 Hz. Vibration amplitude was 3-4 mm and 5 minutes WBV exercise was performed at each frequency, followed by a measurement after 2-minute rest. We assigned 18 individuals to each frequency and asked them to participate in the WBV exercise once every 3 weeks. The level of spasticity was evaluated by visual analogue scale (VAS) for self-assessment. The myoton PRO was utilized to objectively evaluate the level of spasticity and check the muscle tone and stiffness. RESULTS: Participants showed 0 Hz VAS was a significant difference between 20 Hz application conditions (p < 0.05). Muscle tone was significantly different at 0 Hz between 20 Hz, and 30 Hz (p < 0.05), significantly difference at 10 Hz between 30 Hz (p < 0.05). Muscle stiffness significantly difference at 0 Hz between 20 Hz, and 30 Hz (p < 0.05), significantly difference at 10 Hz between 20 Hz, and 30 Hz (p < 0.05). CONCLUSION: Findings of this study show that the frequency of more than 20 Hz was effective in improving the ambulatory ability in patients with chronic stroke. Currently, the effective WBV protocol is limited. Hence, this study was designed to suggest an effective WBV protocol to improve neuromodulation ability for chronic stroke patients.
Ankle Joint* ; Ankle* ; Humans ; Muscle Spasticity* ; Self-Assessment ; Stroke* ; Vibration* ; Walking

No abstract available.
Humans ; Longitudinal Ligaments* ; Magnetic Resonance Imaging* ; Spine*

BACKGROUND: Epidermal cyst is a common disease. The clinical and histo pathologic findings in patients with epidermal cysts are described. OBJECTIVE: Our purpose is to identify the clinical and histopathologic feastures of epidermal cysts. MEHTODS: We ealuated the clinical and histopathologie features of 11 cases which were diagnosed with epidermal cysts at the department of dermatology in Wonju Chist.an Hospital and Jeju Severance Dermatologic clinic for 13 years, from January 1980 to June 1992. RESULTS: The ratio of males to females was 1.9: 1 with male predominance. Age distribution at first visit was variable, ranging from to 85 years old. The mean age was 3.5 years old. The Duration of lesions was variable, ranging from a 3 days to 20 years, with the mean duration of 2.4 years. The most common site of lesions was the face(36%), followed by the trunk(18%), neck(13%), leg(13%), arm (8%), scalp(3%), scrotum(3%), vagina(3%), palm(1%) and fingers(1%). Histopathologically, 46 cases(41%) were ruptured. The most common stromal change was fibrosi followed by granulation tissue formation, giant cell, calcifiration, pilomatricoma like change, pigment, squamous eddy, bone formation and vessel proliferation. The most common cystic content was keiatinous material followed by parakeratotic cell, bacterial colony, calcification, cholesterol cleft, pigment and RBC. The most common cystic wall change was acanthosis followed by atrophy, hyperplasia, hyergranulosis, basalioma like change, parakeratosis and reticulation. CONCLUSION: Epidermal cysts are slowly growing tumors. They occur nost commonly on the face, trunk, neck, legs and arms. Histopathologically, they have a wall compose 1 of true epidermis. When an epidermal cyst ruptures, a foreignbody reaction with numerous multinu leated giant cells occurs.
Age Distribution ; Aged, 80 and over ; Arm ; Atrophy ; Cholesterol ; Dermatology ; Epidermal Cyst* ; Epidermis ; Female ; Gangwon-do ; Giant Cells ; Granulation Tissue ; Humans ; Hyperplasia ; Leg ; Male ; Neck ; Osteogenesis ; Parakeratosis ; Pilomatrixoma ; Rupture