Diabetic neuropathy is an axonal degenerative disease characterized by progressive axonal atrophy and reduced axonal transport. We were interested in the potential neuroprotective effects of nerve growth factor against diabetic neuropathies. To this aim we studied the effect of nerve growth factor on satellite cells, which might play a trophic role toward the related neuron, of the dorsal root ganglion in the streptozotocin-induced diabetic rats by electron in microscope . Diabetes was induced in rats by the streptozotocin. And recombinant human NGF was administrated everyday for 10 consecutive weeks. The results obtained are as follows : 1.In the diabetic induced group, the satellite cells revealed irregular nuclei.The neuron-satellite cell interface was more irregular and plicated than that of control. Large vacuoles and dense bodies were observed and no defects were in the ribosomes and rough endoplasmic reticulum. In the vacuoles, medium electron dense, fiber -like materials were occasionally observed. 2. In the experimental group of diabetic rats treated with NGF for 10 weeks, nucleus was round and the neuron-satellite interface was more regular. Vacuoles and dense bodies were less seen than diabetic rats. In the cytoplasm, many microtubules were observed. In these studies, we considered that streptozotocin induces changes of the satellite cell structure and NGF might improve cellular changes of the satellite cell exposed with streptozotocin.
Animals ; Atrophy ; Axonal Transport ; Axons ; Cytoplasm ; Diabetic Neuropathies ; Endoplasmic Reticulum, Rough ; Ganglia* ; Ganglia, Spinal ; Humans ; Microtubules ; Nerve Growth Factor* ; Neurons ; Neuroprotective Agents ; Rats* ; Ribosomes ; Streptozocin ; Vacuoles

Polymorphous light eruption(PMLE) is an idiopathic, scquired syndrome characterized by a delayed abnormal response to light and a varied morphology of recurrent erythema, papules, vesicles or plaques on light-exposed areas of skin. We report herein s 42-year-old male patient who was clinically and histologically compatible with PMLE. To confirm the diagnosis, the phototest was performed by 50,J/crn of UVA, 5MED-UVB and visible light irradiation to the extensor surface of the forearm. Numerous erythematous papules developed at the (JVA-irradiated site. The histopathologic findings of the phototest induced lesion were compatible with PMLE. Therefore, our patient was confirmed as having PMLE with action spectrum in the IJVA range.
Adult ; Diagnosis ; Erythema ; Forearm ; Humans ; Light ; Male ; Skin

No abstract available.
Syphilis, Congenital*

BACKGROUND: Today, patients with fatty liver have increased by several factors. Some patients with fatty liver have abnormal liver function tests, by the way they have interpreted unwisely and made wrong therapeutic approach about abnoimal liver function tests. So we conducted this study to evaluate the factors related to patients with fatty liver and make basic concept for management. METHODS: We selected 96 patients(71 men, 25 women) who were diagnosed as fatty liver by ultrasound in Asan Medical Health Examination Center, also selected 91 controls(68 men, 23 women) who had similar sex and age distribution from January to December, 1993. We excluded toxic and viral hepatitis cases or patients. We surveyed by questionnaires that composed of 3 day-dietary diary and life style. Nutrient and alcohol intakes were analyzed by nutrient-analysis program that was derivated from Food Composition Table, and we analyzed several biochemical variables. RESULTS: There were 71 men and 25 women with fatty liver, 68 men and 23 women in controls. In cases of men, the mean age was 47 years-old in patient group, 44 years-old in control group. The obesity index was 112.7% in patients, 102.6% in controls, the mean level of triglyceride was 205mg/dl in patients, 150mg/dl in controls. The mean level of serum HDL-C was 46mg/dl in patients, 50mg/dl in controls(p<0.05). The frequency of obesity was 66.2% in patients, 27.9% in controls, hypertriglyceridemia was 42.3% in patients, 22.1% in controls(p<0.05). The frequency of patients who had increased AST was 26.8% in patients, 11.8% in controls, and the frequency of patients or cases who had increased ALT was 26.8%, in patients, 7.4% in controls(p<0.05). There were no significant statistical differences in the nutrient intakes, alcohol drinking and exercise between the male patients and controls. In cases of women, the mean age was 53 years in patient gr oup or among patients, 51 years in controls. The obesity index was 112.2% in patients, 102.1% in controls, and the mean level of serum triglyceride was 198.3mg/dl in patients, 136.4mg/dl in controls(p<0.05). The frequency of obesity was 76.0% in patients, 30.4% in controls, and the frequency of hypertriglyceridemia was 36.0% in patients, 13.0% in controls. There were statistically significant differences in the frequency of obesity and hypertriglyceridemia between patients and controls(p<0,05). There were no statistically significant differences in the frequency of increased AST and ALT, nutrient intakes, alcohol drinking, and excercise between patients and controls. CONCLUSIONS: The fatty liver disease was attributed either to obesity or hypertriglyceridemia. Therefore, it is very important to control of weight and hypertriglyceridemia in the management of patients with fatty liver.
Adult ; Age Distribution ; Alcohol Drinking ; Chungcheongnam-do ; Fatty Liver* ; Female ; Hepatitis ; Humans ; Hypertriglyceridemia ; Life Style ; Liver Function Tests ; Male ; Middle Aged ; Obesity ; Triglycerides ; Ultrasonography ; Surveys and Questionnaires

Primary renal lymphoma is a rare tumor of the kidney that typically presents with bilateral nodular enlargement in the absence of extrarenal masses. We describe MR findings of a case of primary renal lymphoma along with ultrasound and CT findings. MR imaging demonstrated globular enlargement of both kidneys with multilobulated contour and multiple masses which had isosignal intensity on T1WI and low signal intensity on T2WI. The masses enhanced slightly on dynamic contrast enhanced scan.
Kidney ; Lymphoma* ; Magnetic Resonance Imaging ; Ultrasonography

No abstract available.
Blood Platelets* ; Gestational Age* ; Humans ; Infant, Newborn* ; Mean Platelet Volume* ; Platelet Count* ; Reference Values*

No abstract available.
Blood Platelets* ; Gestational Age* ; Humans ; Infant, Newborn* ; Mean Platelet Volume* ; Platelet Count* ; Reference Values*

PURPOSE: To investigate the function of the fellow eye in patients with unilateral nonarteritic anterior ischemic optic neuropathy (NAION). METHODS: From 2009 to March 2018, 18 patients with NAION who underwent bilateral visual field examinations and follow-up visits at least two times were enrolled in this study. Initial visual acuity, final visual acuity, degree of visual field defects, the cup-disc (C/D) ratio of the fellow eye, and the presence or absence of cardiovascular disease was retrospectively analyzed using medical records. RESULTS: The fellow eye mean best-corrected visual acuity was 0.03 ± 0.53 (logMAR) and the mean visual field defect was −4.68 ± 3.65 dB in 18 eyes of patients with unilateral NAION (p = 0.007 and p = 0.001, respectively). The C/D ratios were divided into two groups: > 0.3 and < 0.3. The visual field defect was improved significantly from −4.92 dB to −2.37 dB in the group with optic disc ratios < 0.3 (p = 0.013). When the changes in visual field defects were analyzed according to the presence or absence of cardiovascular disease, the visual field defects were improved from −5.65 dB to −4.49 dB in patients with cardiovascular disease, and improved from −3.69 dB to −1.46 dB in patients without cardiovascular disease (p = 0.025 and p = 0.021, respectively). CONCLUSIONS: In patients with unilateral NAION, reduced function in the fellow eye may appear temporarily, so a visual field examination should be performed in both eyes. The possibility of incipient NAION should be considered in patients with visual field abnormalities in the fellow eye.
Cardiovascular Diseases ; Follow-Up Studies ; Humans ; Medical Records ; Optic Neuropathy, Ischemic ; Retrospective Studies ; Visual Acuity ; Visual Fields

Parkinson's disease (PD) is characterized by selective and progressive degeneration of dopamine (DA)-producing neurons in the substantia nigra pars compacta (SNpc) and by abnormal aggregation of alpha-synuclein. Previous studies have suggested that DA can interact with alpha-synuclein, thus modulating the aggregation process of this protein; this interaction may account for the selective vulnerability of DA neurons in patients with PD. However, the relationship between DA and alpha-synuclein, and the role in progressive degeneration of DA neurons remains elusive. We have shown that in the presence of DA, recombinant human alpha-synuclein produces non-fibrillar, SDS-resistant oligomers, while beta-sheet-rich fibril formation is inhibited. Pharmacologic elevation of the cytoplasmic DA level increased the formation of SDS-resistant oligomers in DA-producing neuronal cells. DA promoted alpha-synuclein oligomerization in intracellular vesicles, but not in the cytosol. Furthermore, elevation of DA levels increased secretion of alpha-synuclein oligomers to the extracellular space, but the secretion of monomers was not changed. DA-induced secretion of alpha-synuclein oligomers may contribute to the progressive loss of the dopaminergic neuronal population and the pronounced neuroinflammation observed in the SNpc in patients with PD.
Blotting, Western ; Cell Line, Tumor ; Dopamine/*metabolism ; Humans ; Levodopa/pharmacology ; Neurons/*metabolism/pathology/*secretion ; Parkinson Disease/metabolism/pathology ; Substantia Nigra/metabolism/pathology ; alpha-Synuclein/*biosynthesis/*secretion

BACKGROUND: Anesthetic requirements are affected by the preoperative levels of some hormones. This study investigated to identify the hormonal status such as plasma level and maximal secretary capacity correlating with propofol and remifentanil requirements in pituitary adenoma patients who show various hormonal secretory states perioperatively. METHODS: From 51 adult female pituitary adenoma patients, preoperative basal values and maximal stimulated levels of various hormones related to the axis of hypothalamus-pituitary-target organs on combined pituitary function test were recorded. Total intravenous anesthesia using target controlled infusion with propofol and remifentanil was administered. The effect-site concentration (Ce) of propofol reaching anesthetic induction and the consumed dosages of propofol and remifentanil during operation were measured. Anesthetic maintenance was controlled within 30% of preanesthetic hemodynamic variables by remifentanil and within ranges of BIS 45 +/- 10 by propofol. Spearman correlations between hormonal status and anesthetic requirements such as propofol Ce for induction, total consumed doses of propofol and remifentanil were performed with a statistical significance at P of 0.05. RESULTS: The preoperative basal level of ACTH was correlated positively with propofol induction Ce and maintenance dose, and the maximal secretory capacity of prolactin also correlated positively with propofol induction Ce. Remifentanil consumption dose was not related with any hormones measured regardless of either preoperative basal levels or maximal secretory levels. CONCLUSIONS: Propofol requirements may be related with preoperative plasma level of ACTH or maximal secretory capacity of prolactin.
Adrenocorticotropic Hormone ; Adult ; Anesthesia, Intravenous ; Axis, Cervical Vertebra ; Female ; Hemodynamics ; Humans ; Piperidines ; Pituitary Function Tests ; Pituitary Neoplasms ; Plasma ; Prolactin ; Propofol