No abstract available.
Seasonal Affective Disorder* ; Seasons*

The authors studied the ultrastructural changes of liver cell mitochondria in autolysis. The male Sprague-Dawley rats, weighting 140~160 gm were sacrificed for extract liver tissue. The slices of the liver tissue were incubated in 37 degrees C aseptic normal saline, and those were examined by following intervals; 10, 20 and 30 minutes and 1, 2, 6, 12 and 24 hours with light and electron microscope. The results obtained by light microscopy were summerized as follow. Several fine intracytoplasmic vacuoles were observed 1 hour after incubation. After 3 hours, focal destruction of cytoplasmic membrane with pyknosis of nuclei were observed. More delicate intracytoplasmic architectural changes could not be detected at light microscopic studies. The cord arrangement and cellular boundaries were relatively well preserved until 24 hours after incubation. Electronmicroscopically, mild intramitochondrial swelling with diminution of intramatrical granules were observed at 20 minutes. These were the earliest findings. Both high amplitude swelling and destruction of mitochondrial membrane were observed concurrently at 1 hour after incubation. The earlier membrane changes were observed at inner membrane with cristae and followed by degeneration of the outer membrane. The intramatrical amorphous dense deposits were observed at 30 minutes when the membranes were not destroyed. These deposits were noted in the other experimental groups which were incubated longer than 30 minutes. More electron dense deposits were observed after 1 hour at that time the membrane changes appeared. Vhe results suggest in this experiment that the earliest autolytic changes of liver cell mitochondria is loss of intramitochondrial granules and the membraneous changes led to the irreversible mitochondiral injury. The appearance of two types of intramitochondrial dense deposits would be an interesting finding needed to require further investigation for the chemical stucture and mechanism of dense deposit formation.
Male ; Humans

A statistical evaluation was made on 248 patients who were consulted to the Department of Dermatology during the disabled patients admission in Korea Veterans Hospital from July 1, 1980 to June 30, 1982. The resuIts were as followings: l. Among the 248 disabled patients, the most common patients, who constituted 68. 8% of the total, were amputee of lower extremity (25.2%), patient of posttraumatic osteoarthritis (23. 2/) and paraplegia (20. 4%). 2. In age distribution, the most frequent age groups were 50 to 59 years, 42, 4, and the lowest age groups were 60 to 69 years, 4. 0g. 3. The 6 most common dermatoses were Eczema (36. 8%), Fungal infection (33. 6%), Drug eruption (8. 0%), Acne vulgaris (6. 4%), Urticaria and Scabies (3. 2% each). 4. In seasonal distribution, the highest incidence (32. %) occurred on winter, and the lowest incidence (14. 0%) on Spring. Eczema was prevalent during Autumn and Winter season and Fungal infection during Summer season. -countinue-
Acne Vulgaris ; Age Distribution ; Amputees ; Dermatology* ; Drug Eruptions ; Eczema ; Hospitals, Veterans ; Humans ; Incidence ; Korea ; Lower Extremity ; Osteoarthritis ; Paraplegia ; Scabies ; Seasons ; Skin Diseases ; Urticaria

Several observation suggest that the antimelanocyte autoantibodies could play a role in melanocyte destruction. Some experiments indicate that melanocyte antibodies from patients with vitiligo can kill melanocyte in vitro. In these experiments, we demonstrated that vitiligo patient's sera containing antimelanocyte antibodies can lyse cultured human melanocytes by complement activation. Melanocyte cytotoxicity was measured using the ethidium bromide/ acridine orange viability assay. Significant melanocyte cytotoxicity was seen in sera from patients with both active and inactive vitiligo(p<0.01). Melanocyte cytotoxicity measured with complement-mediated cytotoxicity decreased after systemic steroid treatment(p<0.05) ; however melanocyte cytotoxicity showed no significant change with systemic PUVA therapy.
Acridine Orange ; Antibodies ; Autoantibodies* ; Complement Activation ; Ethidium ; Humans ; Melanocytes ; PUVA Therapy ; Vitiligo*

Quantitative serial measurements of Alpha-fetoprotein (a-FP) and Beta-human chorionic gonadotropin (B-HCG) using radioimmunoassay were performed in a patient with recurrent non-germinomatous germ cell tumor (NGGCT) into CNS during radiotherapy and chemotherapy. When the pineal tumor was initially presented, elevated levels of serum a-FP and B-HCG fell dramatically to normal rage after the completion of cranial irradiation (5,060cGy). Three months later, the patient had a rise in serum and CSF tumor markers coincident with recurrence of tumor into lumbal spinal canal. Serum levels were not changed despite of 15 days of whole spine irradiation (2,000cGy) although decreased remarkably 1 month after the completion of radiotherapy (4,230cGy). At the time of relapse in the suprasella area and the cerebellopontine angle, serum and CSF levels rised again. As a result of two courses of chemotherapy the tumor markers fell markedly, but the tumor was spread to other sites into CNS. We conclude serial measurements of a-FP and B-HCG are useful for the diagnosis of the non-germinomatous germ cell tumor into CNS and for monitoring disease activity.
alpha-Fetoproteins ; Cerebellopontine Angle ; Chorionic Gonadotropin ; Cranial Irradiation ; Diagnosis ; Drug Therapy ; Germ Cells* ; Humans ; Neoplasms, Germ Cell and Embryonal* ; Pinealoma ; Radioimmunoassay ; Radiotherapy ; Rage ; Recurrence ; Spinal Canal ; Spine ; Biomarkers, Tumor*

Cardiac myxoma is a rare but potentially treatable cause of stroke. The diagnosis is rarely made on typical triad of constitutional, embolic, and obstructive symptoms, and it is difficult because there is no specific history, physical examination, chest X-ray, or electrocardiographic findings, but with the development of echocardiography the correct diagosis is now usualy made. Neurologic manifestation is frequent(25-45%) and presented with embolic infarction, aneurysm formation, intracranial hemorrhage, and distant metastasis. We experienced five patients with cardiac myxoma who presented with these neurologic manifestations. Also we should be considered in the differential diagnosis of cerebral infarction, particularly when multiple cerebral infarction and constitutional or obstructive symptoms are conjoined in young age stroke. We describe five patients who presented with embolic infarction, cerebral metastasis and aneurysm formation.
Aneurysm ; Cerebral Infarction ; Diagnosis ; Diagnosis, Differential ; Echocardiography ; Electrocardiography ; Humans ; Infarction ; Intracranial Hemorrhages ; Myxoma* ; Neoplasm Metastasis ; Neurologic Manifestations* ; Physical Examination ; Stroke ; Thorax

BACKGROUND & PURPOSE: Of thalamic stroke syndrome, according to previous reports, the syndrome of hemiataxia and hemisensory loss (thalamic ataxia syndrome) is known to have localizing value confined to the lesion of posterolateral thalamus. And ataxia in thalamic ataxia syndrome is due to interruption of cerebellar outflow pathways. We observed the clinical characteristics of cerebellar manifestations in patients with thalamic ataxia syndrome to clarify intrathalamic cerebellar pathways because it is known that parts of cerebellar efferent fibers do not pass through the thalamus. METHODS: Ten patients with ataxia (5 men, 5 women ; mean age 64), out of 47 thalamic stroke patients admitted to Kyung Hee University Hospital from Jan. 1994 to May. 1995, were selected. The localization of the lesion was based on CT or MR imaging and ataxia was characterized in view of cerebellar functions - coordination of movement, regulation of equilibrium and muscle tone. RESULTS: Out of 10 patients, 4 patients were thalamic hematoma, 4 patients thalamic hematoma with intraventricular hemorrhage, 2 patients thalamic infarction. Four patients were hemiataxia-hemiparesis-hemisensory loss, 4 patients hemiataxia-hemisensory loss, 2 patients hemiataxia-hemiparesis. Posterolateral thalamus was involved in 4 patients, dorsal thalamus in 3 patients, posterolateral and dorsal thalamus in 3 patients. All patients had dysmetria, dysdiadochokinesia, kinetic tremor. Two patient has gait ataxia. Speech and ocular motility disturbances were not noted. CONCLUSION: Thalamic ataxia syndrome appeared in the lesion of posterolateral and dorsal thalamus. Common cerebellar manifestations symptoms of incoordination.
Ataxia* ; Cerebellar Ataxia ; Female ; Gait Ataxia ; Hematoma ; Hemorrhage ; Humans ; Infarction ; Magnetic Resonance Imaging ; Male ; Stroke* ; Thalamus ; Tremor

To study the effect of indomethacin treatment on the reactivity of contact hypersensitivity and discuss relevant mediators which could affect contact hypersensitivity, the following items were evaluated: the change in the plasma concentration of prostsglandin E following indomethacin treatment; the change of contact hypersensitivity following indomethacin treatment. The results ore summarized as follows: 1. The plasma level of prostaglandin E in indomethacin treated mice decreased. 2. The contact hypersensitivity of indomethacin treated mice was depressed. Considering the suppression of contact hyper sensitivity by indomethacin treatment, the metabolites of cyclo-oxygenase such as prostaglandin E may be the possible mediators of induction of contact hypersensitivity.
Animals ; Dermatitis, Contact* ; Indomethacin* ; Mice* ; Plasma ; Prostaglandin-Endoperoxide Synthases

No abstract available.
Electrocardiography, Ambulatory*

The authors studied the formation of giant mitochondria in liver cell. The Sprague Dawley rats were sacrificed following intervals; 5, 10, 20, 30, and 60 minutes after intraperitoneal injection of hydrazine in the amount of 200 microliter/kg. And the extracted liver tissues were examined with light and electron microscopes. The results obtained were summarized as follow; Light microscopically, there is little difference between control and experimental groups. Electron microscopically, elongated, bizzare shaped mitochondria are appears 5 minutes after hydrazine injection. Those show attenuated portion, Y, U, or C shaped feature suggesting fusion or budding mitochondria. The number of giant mitochondria is decreased after 10 minutes group and rarely present in 60 minutes group. The results suggest in this experiment that the formation of giant mitochondria is kind of reversible change and it is different from the mitochondrial swelling of cellular injury. Intermitochondrial fusion and mitochondrial budding may be related with the formation of giant mitochondria.
Rats ; Animals