Irradiation which acts directly and produces the reactive oxygen radicals by ionizing water molecules, causes significant morbidity and mortality. The muscle is damaged by direct action, oxygen radicals and the alterations of microcirculation and metabolism after irradiation. The changes of SOD immunoreactivities in muscles of the rats after irradiation were observed. The ultrastructural changes of the irradiated muscles with the pretreatment of SOD (superoxide dismutase) or without were also investigated. A total of 60 healthy Sprague-Dawley male rats weighing from 200g to 250g were used as experimental animals. Under urethane (1.15g/kg. IP.2 times) anesthesia,30 Gy irradiation to lower extremities by PICKER-C9 Cobalt-60 teletherapy unit was done. 15,000 unit/kg of SOD was administered intraperitoneally 1 hour before irradiation. The experimental animals were sacrificed 1 day, 3 days, 7 days, 2 weeks and 4 weeks after irradiation. The superficial portions of the mid-belly of the rectus femoris muscles were obtained and sliced into portions, 2 mm in length, 1 mm in width and in thickness. The specimens were prepared by routine methods for the electron microscopic observation. All preparations were stained with uranyl acetate and lead citrate and observed with a Hitachi-600 electron microscope. The other parts of mid-belly of the rictus femoris muscles were sectioned in 14 micrometer thickness with cryostat at -20 degrees C. The immunoreactivities of SOD by use of antihuman Cu, Zn-and Mn-SOD antibodies were observed. The results were obtained as follows . 1. After irradiation, the immunoreactivities of SOD in the rictus femoris muscle were decreased. 2 weeks after irradiation, the immunoreactivities of Cu, Zn-SOD were trace, which was lowest.4 weeks after irradiation, the immunoreactivities were trace or weak. 1 day after irradiation, the immunoreactivities of Mn-SOD were trace, which was lowest. The immunoreactivities of Mn-SOD were increased gradually 4 weeks after irradiation, the immunoreactivities of Mn- SOD were moderate or weak. 2. The ultrastructural changes in the rectus femoris muscles of the rats were getting severer and severer after irradiation. 2 weeks after irradiation, unclear A band and I band, myofibrillolysis, increased and dilated cistemae of sarcoplasmic reticulum and mitochondria with dilated cristae and electron lucent matrix were seen. 4 weeks after irradiation, lysis of sarcomere and increased cisternae of sarcoplasmic reticulum were seen. 3. The ultrastructural changes in the rectus femoris muscles of the rats were getting worse and worse after 3 days of irradiation with the pretreatment of SOD. 2 weeks after irradiation with the pretreatment of SOD, myofibrillolysis, increased and dilated cisternae of sarcoplasmic reticulum and damaged mitochondria were seen. 4 weeks after irradiation with the pretreatment of SOD, the ultrastructures of rectus femoris muscles were recovered to normal. Consequently, after irradiation of 30 Gy, the immunoreactivities of SOD are decreased and SOD attenuates the reversible changes of ultrastructures in muscles.
Animals ; Antibodies ; Citric Acid ; Humans ; Lower Extremity ; Male ; Metabolism ; Microcirculation ; Mitochondria ; Mortality ; Muscles ; Quadriceps Muscle* ; Rats* ; Rats, Sprague-Dawley ; Reactive Oxygen Species ; Sarcomeres ; Sarcoplasmic Reticulum ; Superoxide Dismutase ; Urethane

We report an autopsy case of the brain stem glioma that extended extensively in the brain stem itself and cephalad. This 18-year-old boy first presented with dizziness, vomiting and left side weakness with left facial palsy. Brain MRI revealed a diffusely infiltrative tumor involving whole medulla, pons and lower midbrain. A total of 4000 R was given with some alleviation of respiratory difficulty. He died one year after the onset. Autopsy revealed the tumor involving pons, a portion of medulla oblongata, and cerebellum. The tumor showed diffusely infiltrative pattern and extended along the periventricular area to the thalamus and corpus callosum. The cut surface was grayish white and solid. It also showed areas of myxoid degeneration and necrosis probably related to radiation therapy. Microscopically the tumor was a cellular and pleomorphic glioma that showed some astrocytic differentiation. It was diffuse without geographic necrosis.

No abstract available.
Glycemic Index ; Humans

No abstract available.
Nitric Oxide* ; Rhinitis*

No abstract available.
Electrodes* ; Humans ; Infant, Newborn*

OBJECTIVES: This study aims to analyze the association between the severity of sleep apnea, sleep and mood related scales, and activity during sleep in obstructive sleep apnea syndrome (OSAS) patients. METHODS: One hundred seventy six drug-free male patients confirmed as OSAS (average age=43+/-11 years) were selected through nocturnal polysomnography (NPSG). OSAS was diagnosed with apnea-hypopnea index (AHI) >5, mean AHI was 39.6+/-26.0. Sleep related scales were Stanford Sleepiness Scale (SSS), Epworth Sleepiness Scale (ESS), Pittsburg Sleep Quality Index (PSQI) and Morningness-Eveningness Scale (MES). Mood related scales were Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), State-Trait Anxiety Inventory (STAI) I, II and Profile of Mood States (POMS). NPSG was performed overnight with both wrist actigraphy (WATG). Parameters produced from WATG were total activity score, mean activity score and fragmentation index. We analyzed the correlation between each scale, AHI scored from NPSG and activity score analyzed from WATG. RESULTS: ESS showed significant positive correlation with PSQI, BDI, BAI and STAI I, II, respectively (p<0.01). SSS showed significant positive correlation with PSQI and BAI (p<0.05, p<0.01). BAI showed significant positive correlation with total activity score, mean activity score and fragmentation index (p<0.05, p<0.01, p<0.05). Total activity score showed significant positive correlation with ESS and BAI, respectively (p<0.05). Fragmentation index showed significant positive correlation with ESS, PSQI and BAI (p<0.05, p<0.01, p<0.05). AHI, indicator of sleep apnea is showed no significant correlation with each sleep and mood related scale. CONCLUSION: The degree of daytime sleepiness tends to be associated with night sleep satisfaction, depression and anxiety, and the activity during sleep rather than the severity of sleep apnea.
Actigraphy ; Anxiety ; Depression ; Humans ; Male ; Polysomnography ; Sleep Apnea Syndromes ; Sleep Apnea, Obstructive ; Weights and Measures ; Wrist

PURPOSE: In order to recognize predictive factors of the recurrent seizure attacks with benign epilepsy of childhood with centrotemporal spike(BECCT), we have studied the factors such as age of seizure onset, sex of the patient, frequency and duration of seizure Prior to therapy, initial antiepileptic drug, which are presumed to influence the recurrence of seizure attack. METHODS: Among the children with BECCT, who visited the department of pediatrics, Chuncheon Sacred Heart hospital, Hallym University from Jan. 1985 to Dec. 1997, 52 patients who were followed up for more than 12 months after disappearance of the seizure, have been studied. The patients were divided into three groups, (group I; seizure duration is less than 3 months, groups II; seizure duration less than 12 months, group III; seizure duration more than 12 months) by duration of seizure recurrence, and compared with difference of seizure recurrence by predicting factor in each group. Data were analysed by using DBSTAT version 1.0 by ANOVA. RESULTS: 1) Age onset of seizure The age onset of seizure in group I is 8.6+/-2.0 years and 7.9 +/-3.5 years in group II, 6.2+/-1.7 years in group III. The younger the seizure standted, the more seizures recurred(p<0.05). Our study revealed no age differences of the seizure remission in 3 groups. 2) Sex : Among the 52 patients, 30 patients were male, 22 patients were female. The ratio of the male to female was 1:1(12/12) in group I, 1:1.5(2/3) in group II, 2.3: 1(16/7) in group III. The recurrence rate was higher in male than in female. But no statistically difference in recurrence rate by the sex was revealed. 3) Seizure duration and seizure frequency prior to therapy : In group I, pretreatment duration was 1.6+/-3.5 months, frequency of the attacks was 2.0+/-1.0. In group II, duration 1.3+/-1.2 months, frequency 3.2+/-0.5. In group III, duration 3.5+/-6.9 months, frequency 3.5+/-1.8. Our study revered statistically significant differences in values of frequencies and durations in each groups(p<0.05). 4) Initial anticonvulsant and seizure recurrence : Seizure recurred in 36% of patients treated by carbamazepine, and 55.6% of valproate, 66.7% of phenobarbital, 37.5% of diphenylhydantion. There was no significant relation between initial anticonvulsant and seizure recurrence in each group. CONCLUSION: Our data support that age onset and seizure frequency were predictive factor fort seizure recurrence. BECCT Is a age dependent genetic disorder with variable penetrance, having longer duration of seizure with earlier onset. Clinical seizures and abnormal EEG trait tend to remit at certain age, regardless of onset age and treatment.
Age of Onset ; Carbamazepine ; Child ; Electroencephalography ; Epilepsy ; Epilepsy, Rolandic* ; Female ; Gangwon-do ; Heart ; Humans ; Male ; Pediatrics ; Penetrance ; Phenobarbital ; Recurrence* ; Seizures* ; Valproic Acid

The world has been facing a tremendous threat for more than 1 year by coronavirus disease 2019 (COVID-19). Because of the ongoing pandemic of COVID-19, it is necessary to be aware of the characteristics and symptoms of COVID-19 in order to prevent the COVID-19 spread. Common symptoms of COVID-19 include fever, cough, shortness of breath, headache and various types of pneumonia. Recently, smell loss has been extensively reported in COVID-19 patients. They experience this before other general symptoms or smell loss can be their only symptom. These types of patients may be neglected and a potential source for viral spread. Thus, screening tests of COVID-19 should be considered if patients have smell loss without any other nasal symptoms. Even though the recovery rate of smell loss in COVID-19 is relatively high, there are unmet needs for further studies including the mechanism of olfactory dysfunction, proper treatment and long-term recovery in COVID-19.

Brown tumors are erosive bony lesions caused by the chronic excessive secretion of parathyroid hormone. Since the introduction of routine calcium measurement, the diagnosis of hyperparathyroidism has usually been made in asymptomatic patients, and as a result, brown tumors are rarely observed as an initial manifestation of hyperparathyroidism. The authors report a case of a 32-year-old woman who presented with right cheek swelling. A CT scan showed erosive bone tumors of the mandible. These lesions were finally diagnosed as brown tumors associated with secondary hyperparathyroidism due to chronic renal failure. Brown tumor as a result of hyperparathyroidism is a relatively rare clinical finding in otorhinolaryngology, thus, the authors illustrate this case with a brief review of the literature.
Adult ; Calcium ; Cheek ; Female ; Humans ; Hyperparathyroidism ; Hyperparathyroidism, Secondary ; Kidney Failure, Chronic ; Mandible ; Otolaryngology ; Parathyroid Hormone

PURPOSE: Since its introduction in the mid-1990s, sentinel lymph node biopsy has been rapidly and widely adopted for the axillary staging of clinically node-negative breast cancer patients. However, there is some controversy in the clinical application because of its various identification rates and its false negative rates. The objective of this study was to assess the usefulness of endoscopic sentinel lymph node biopsy (ESNB) and to compare the value of two methods for identification of ESNB using blue dye only or a combination of blue dye and radioisotope. METHODS: This study was carried out in 137 breast cancer patients (bilateral breast cancer, 3 cases) who underwent ESBN, at the Department of Surgery in Soonchunhyang University from May of 2007 to August of 2008. The technique involved the injection of 5 mL of 0.5% indigocarmine or Tc-99m tin colloid into subareolar plexus. The Visiport docked with a telescope was inserted through a low transverse axillary incison (1.0 cm in size) lateral to the pectoralis major. During the dissection, we identified sentinel nodes by following blue-stained lymphatic duct directly into blue-stained lymph nodes. We compared the value of two methods for identification of ESNB using blue dye only or a combination of blue dye and radioactive tracer. RESULTS: The mean number of sentinel nodes was 1.27 (range, 1-4). The identification rate and false negative rate of the sentinel node were 94.3% (132/140) and 6.9% (3/43), respectively. We compared ESNB with using blue dye only (n=77) vs. a combination of blue dye and radioactive tracer (n=63). Sentinel lymph node identification rate were 90.9% (70/77) vs. 98.4% (62/63) (p=0.043). CONCLUSION: The endoscopic technique of sentinel node biopsy can keep better operative visual fields and is less invasive. The combination of blue dye and radioactive tracer was superior to blue dye only for identification rates.
Biopsy ; Breast ; Breast Neoplasms ; Colloids ; Humans ; Lymph Nodes ; Nitriles ; Pyrethrins ; Radioisotopes ; Sentinel Lymph Node Biopsy ; Telescopes ; Tin ; Visual Fields