Recently refractive corneal surgery has been increasing and intraocular lens implantation is a routine procedure during cataract surgery. Many people have various activities in the evening such as night driving, thus it may be very important measuring the pupil size in the dark in determining the size of the optical zone. We measured pupil size of sixty normal adult candidates in darkness of 0, 20, 60, 100 lux and also in the bright illumination of 200 lux for comparison using near lens camera and slide film. The pupils became larger with younger age and increased darkness. Pupil Size(log mm) = 4.57 - 0.0388 X Age(year) - 0.005 X Luminance(lux). The average pupil size of all age groups were 7.0mm, 6.56mm, 5.97mm, 5.4mm sequencially in darkness and 4.77mm in brightness(200 lux). The average pupil size of 20~30 year old group who are socially active even at night was 7.18mm and 8.4mm in maximum. This has significant meaning clinically. Additionally the size of pupil became larger with increased corneal diameter and the amount of anisocoria tended to be greater with the increase of the darkness.
Adult* ; Anisocoria ; Cataract ; Darkness ; Humans ; Lens Implantation, Intraocular ; Lighting ; Pupil*

Trypsin and DNase digestion technique has become a retinal digestion technique for studying diabetic retinopathy. We tried osmotic digestion method with DNase and compared the quality of preparation of retina and microvascular change with trypsin digestion in normal and diabetic rats. Streptozotocin-induced diabetic rats were sacrificed at 9, 18, 27weeks in 6 rats. Right retinas were digested with 3% trypsin while left wer digested with 0.1% DNase. For control, 18 normal rats were sacrificed at the same time. DNase was superior to trypsin for retinal preparation on the stainability, the degree of separating nonvascular fissue from vascular net, the degree of preservation of vascular net in normal & diabetic rats. In diabetic rats, the number of pericyte decreased significantly with age, which not in normal rats(p=0.0023) We suggest DNase digestion technique as an new alternative for trypsin digestion technique in the study of microvascular change of diabetic retinopathy.
Animals ; Deoxyribonucleases* ; Diabetes Mellitus ; Diabetic Retinopathy ; Digestion* ; Endothelial Cells ; Microvessels* ; Pericytes ; Rats* ; Retina ; Retinaldehyde* ; Trypsin*

An outbreak of dermatosis occurred in a livestock fodder factory at Kyongju in May 1994. Authors conducted a questionnaire survey on 60 workers in the factory and a dermatologist examined their skin lesion. Authors also collected mites and identified them. The obtained results were summarized as follows; 1. Twentyeight cases of dermatosis were identified with attack rate of 46.7%. Attack rate was not different by department, age, sex, educational level and employment duration. Attack rate was 67.5% in productive worker and 5.0% in clerical workers (p<0.01) but was not significantly different between departments among productive workers (p>0.05). 2. Three cases among 28 dermatosis cases and one subject among 32 non-cases had a history of same dermatosis last year. Only one of dermatosis cases had a history of dermatosis among family members. History of other skin lesion and allergy was very rare in both cases and non-cases. 3. Skin lesions of the cases were rice-sized erythematous papules or vesicles with a central biting point. Onset date of dermatosis was between May 1 and June 10. Duration was from one day to more than 30 days. Skin lesion was most frequent at the back(75.0%). and also observed at the arms(64.3%). abdomen(60.7%), legs(57.1%), chest(32.1%) and neck (25.0%). Skin lesion was aggravated while workers are sweeping the floor(35.7%), working at the workplace(21.4%) and in bed at night(28. 6%). 4. Total l,637 mites were collected and identified into 3 suborder, 7 families and 17 species. Dermafophagoides farinae was most frequent Nnd most of the species identified were blood sucking mites. Authors concluded that the outbreak of dermatosis was brought about by mite-bites and grain beetle parasitizing Acarophenax tribolii was the most suspected species. Further studies to identify the specific species causing dermatosis and route of import are needed.
Beetles ; Edible Grain ; Employment ; Epidemiologic Studies* ; Gyeongsangbuk-do ; Humans ; Hypersensitivity ; Korea ; Livestock ; Mites* ; Neck ; Surveys and Questionnaires ; Skin ; Skin Diseases*

Congenital lipoid adrenal hyperplasia, the most severe form of congenital adrenal hyperplasia, is caused by mutations in the steroidogenic acute regulatory protien (StAR). It is characterized by failure of synthesis of all three classes of adrenal steroids and massive accumulation of lipids and cholesterol in the adrenal cortex. The computed tomography (CT) unequivocally delineated massively enlarged adrenal glands of fat-tissue attenuation, enabling early diagnosis and replacement therapy. We report a case of congenital lipoid adrenal hyperplasia, in which CT established that lipoid deposition at the adrenal cortex disappeared after the adrenal hormone replacement therapy.
Adrenal Cortex ; Adrenal Glands ; Adrenal Hyperplasia, Congenital ; Cholesterol ; Early Diagnosis* ; Hormone Replacement Therapy ; Hyperplasia* ; Steroids

We report a case of pneumonia in 36 year-old male patient who presented acute respiratory failure and associated radiologic findings of bilateral ground-glass opacity with focal cystic changes, showing rapidly aggravating course and was diagnosed as concomitant Pneumocystis carinii and Cytomegalovirus pneumonia accompanied by acquired immunodeficiency syndrome through antemortem open lung biopsy.
Acquired Immunodeficiency Syndrome ; Biopsy ; Cytomegalovirus ; Humans ; Lung ; Male ; Pneumocystis carinii ; Pneumonia ; Respiratory Insufficiency*

Clinical observation was carried out for 147 patients with mucocutaneous lymph node syndrome (MCLS) who were admitted to the Department of Pediatrics, Wonju Christian Hospital during the period from June, 1983 to June, 1992. A spinal tap was performed on 114 of these patients and the following results were obtained. 1) The incidence of aseptic meningitis in patients with MCLS was 52.6%. (60 cases of the 114 cases who had spinal taps (52.6%).) 2) The predominent age group for aseptic meningitis was 6 months to 1 year of age (35%). 3) For the majority, the value of glucose and protein in the CSF were within normal limit or only mildly elevated. 4) The neurologic manifestations associated with aseptic meningitis in patients with MCLS were irritability (78.3%), vomiting (25.0%), nuchal rigidity (11.7%), convulsion (5.0%) and facial nerve palsy (1.7%) in that order.
Facial Nerve ; Gangwon-do ; Glucose ; Humans ; Incidence ; Meningitis, Aseptic* ; Mucocutaneous Lymph Node Syndrome* ; Muscle Rigidity ; Neurologic Manifestations ; Paralysis ; Pediatrics ; Seizures ; Spinal Puncture ; Vomiting

PURPOSE: The aim of this study was to identify the relationship between awareness of nutrition labeling and menstrual cycle irregularity in women from a nationally representative sample of the Korean population. METHODS: A cross-sectional analysis was performed using hierarchical multivariable logistic regression analysis models. A total of 4,324 women aged 19~54 years from the 2010~2012 Korean National Health and Nutrition Examination Survey participated in the study. The participants were classified into three groups based on self-report responses to a questionnaire about their awareness of nutrition labels: Reading, Not-Reading, and Not-Knowing Groups. RESULTS: The Reading, Not-Reading, and Not-Knowing Groups comprised 46.4%, 44.9%, and 8.7% of the participants, respectively, and 53.6% of the participants had never used nutrition labels. In the Not-Knowing Group, irregular menstrual cycles for more than 3 months were significantly more common than women with irregular menstrual cycles for up to 3 months and women with regular menstrual cycles. Women in the Not-Knowing Group were more likely to exhibit menstrual cycle irregularity (adjusted odds ratio: 1.63, 95% confidence interval: 1.10~2.41) compared to women in the Reading Group after adjusting for age, body mass index, smoking status, alcohol intake, exercise regularity, stress, depression, suicidal ideation, metabolic syndrome, age at menarche, parity, and use of oral contraceptives. CONCLUSION: No awareness of nutrition labeling appears to be associated with a higher prevalence of menstrual cycle irregularity in a nationally representative group of Korean women.
Body Mass Index ; Contraceptives, Oral ; Cross-Sectional Studies ; Depression ; Female ; Food Labeling ; Health Literacy ; Humans ; Korea* ; Logistic Models ; Menarche ; Menstrual Cycle* ; Nutrition Surveys* ; Odds Ratio ; Parity ; Prevalence ; Smoke ; Smoking ; Suicidal Ideation

Purpose: Exposure to heat and cold stress can negatively affect pregnant women. However, studies on the association between ambient temperature exposure and pregnant women, especially those with diabetes mellitus, are limited. The presence of this disease is likely to affect the woman’s capacity to adapt to the demands of pregnancy, consequently affecting fetal development. We examined the association between exposure to the mean temperature and diabetes mellitus during pregnancy. Methods: Health Insurance Reviews and Assessment Service was used to obtain data on patients hospitalized between January 2015 and August 2022. The association between the number of pregnant patients with diabetes mellitus according to monthly mean temperature and seasonal differences was analyzed using a generalized additive model. The model was adjusted for the treatment date, mean humidity, and mean age of the women. Results: The total number of patients with diabetes mellitus in pregnancy was 651,655 and the mean temperature was 12.87℃±9.89℃. The association between the mean temperature and diabetes mellitus during pregnancy showed a U-shaped nonlinear association. During the entire period, the number of patients with diabetes mellitus in pregnancy significantly increased by 2.82 per 1℃ increase in mean temperature (estimate, 2.82; 95% confidence interval [CI], -2.06 to 7.71). The number of patients significantly increased by 72.12 per 1℃ increase in mean temperature in the summer (estimate, 72.12; 95% CI, 50.36–93.89), but the increase was not statistically significant in the winter. Conclusion Our findings suggest that maternal exposure to mean temperature during pregnancy is associated with diabetes mellitus.

Hemoglobinopathy poses many challenges to the anesthesiologists. The central issue is the accuracy about interpretation of pulse oximetry saturation value during anesthesia. There are limited data with respect to the correlation between pulse oximetry saturation and oxygen saturation by arterial blood gas analysis in different hemoglobinopathies. We report here a case of a patient with hemoglobinopathy undergoing general anesthesia. Before the induction of anesthesia, various fractions of inspired oxygen were administered with concomitant measurement of oxygen saturation by pulse oximetry and arterial blood gas analysis. The saturation value by pulse oximetry, together with arterial blood gas analysis for oxygen tension, was used for evaluation of the patient's oxygenation status and speculation of the patient's oxygen saturation curve during the anesthesia.
Anesthesia ; Anesthesia, General ; Blood Gas Analysis ; Hemoglobinopathies ; Humans ; Oximetry ; Oxygen

Objective: Semantic verbal fluency (SVF) engages cognitive functions such as executive function, mental flexibility, and semantic memory. Left frontal and temporal lobes, particularly the left inferior frontal gyrus (IFG), are crucial for SVF. This study investigates SVF and associated neural processing in older adults with mild SVF impairment and the relationship between structural abnormalities in the left IFG and functional activation during SVF in those individuals. Methods: Fifty-four elderly individuals with modest level of mild cognitive impairment whose global cognition were preserved to normal but exhibited mild SVF impairment were participated. Prefrontal oxyhemoglobin (HbO2) activation and frontal cortical thickness were collected from the participants using functional near-infrared spectroscopy (fNIRS) and brain MRI, respectively. We calculated the β coefficient of HbO2 activation induced by tasks, and performed correlation analysis between SVF induced HbO2 activation and cortical thickness in frontal areas. Results: We observed increased prefrontal activation during SVF task compared to the resting and control task. The activation distinct to SVF was identified in the midline superior and left superior prefrontal regions (p<0.05). Correlation analysis revealed an inverse relationship between SVF-specific activation and cortical thickness in the left IFG, particularly in pars triangularis (r(54)=-0.304, p=0.025). Conclusion The study contributes to understanding the relationship between reduced cortical thickness in left IFG and increased functional activity in cognitively normal individuals with mild SVF impairment, providing implications on potential compensatory mechanisms for cognitive preservation.