1.Alteration of Interleukin-6 Levels in Brain Tissue and Serum of Rats after an Experimental Brain Contusion.
Byeong Min JEON ; Yang Weon KIM ; Byung Chan JEON
Journal of the Korean Society of Emergency Medicine 2003;14(1):17-22
PURPOSE: Cerebral contusion is often associated with delayed edema, ischemia, demyelination, and secondary impairment in the neurological function. Early prediction of the outcome for patients with diverse critical illnesses has long been a concern of intensive care unit physicians. Recently, the systemic release of host-derived inflammatory mediators has been used for prognosis assessment in patients with multiple infections, burn injury, and systemic infection. Experimental investigations have revealed the importance of free radicals and calcium currents in cellular damage. Also experimental injuries have caused an early production of cytokines. This study was undertaken to analyze the production of interleukin-6 in the brain and in plasma following a brain contusion. METHODS: Sixty male Sprague-Dawley (SD) rats, each weighing 300-350 g were used in an experimental group following brain contusion, and 18 SD rats were used as a control group following a sham operation. Intracerebral IL-6 and plasma IL-6 were measured by using the ELISA method with a rat IL-6 kit at 3, 6, 24, 48, and 72 hours after the brain contusion. After contusion, the brains were fixed by perfusion via the carotid artery with 40% formaldehyde, glacial acetic acid, and 100% ethanol (1:1:8) at a flow rate of 25 ml/min and stained with hematoxylin and eosin for histologic examination. RESULTS: Brain IL-6 levels increased to reach a maximum of 160.23 pg/ml, at 6 hour after brain trauma. Plasma IL-6 levels increased to 70.02 pg/ml at 3 hour following brain contusion. CONCLUSION: The elevated brain IL-6 level in the injured rat does not seem to reflect a systemic inflammation. Although plasma IL-6 is detected in the sham-operated and the traumatized rats, the levels are too low to account for the increase observed in the brain cortex. This finding shows that the increase in brain IL-6 is related to the dynamics of brain contusion.
Acetic Acid
;
Animals
;
Brain Injuries*
;
Brain*
;
Burns
;
Calcium
;
Carotid Arteries
;
Contusions
;
Critical Illness
;
Cytokines
;
Demyelinating Diseases
;
Edema
;
Enzyme-Linked Immunosorbent Assay
;
Eosine Yellowish-(YS)
;
Ethanol
;
Formaldehyde
;
Free Radicals
;
Hematoxylin
;
Humans
;
Inflammation
;
Intensive Care Units
;
Interleukin-6*
;
Ischemia
;
Male
;
Perfusion
;
Plasma
;
Prognosis
;
Rats*
;
Rats, Sprague-Dawley
2.A Structural Equation Model on Quality of Life of Mothers of Children with Attention Deficit Hyperactivity Disorder.
Chan Gyeong PARK ; Mi Yang JEON
Child Health Nursing Research 2017;23(3):279-291
PURPOSE: The aim of this study was to explore how characteristics of ADHD children affect social support for mothers, parenting stress, parenting sense of competence, coping, and quality of life. The conceptual model was based on the Lazarus and Folkman's stress-evaluation-coping theory. METHODS: Data were collected 208 mothers of children with ADHD. Data were analysed using SPSS 18.0 and AMOS 18.0 programs. RESULTS: The proposed model was good fit for the data based on the model fit indices. Parenting stress, parenting sense of competence and coping directly affected quality of life but characteristics of the children and social support had only an indirect effect. The explanatory power of these variables was 52.1%. CONCLUSION: The results of this study indicate that nursing strategies to increase social support for mothers with ADHD children, lowers parenting stress, improves parenting sense of competence, and guides the parents to choose appropriate coping. In particular, as social support has the strongest influence on the quality of life, it is necessary to develop nursing intervention programs that utilize social support for parents with ADHD children.
Attention Deficit Disorder with Hyperactivity*
;
Child*
;
Humans
;
Mental Competency
;
Mothers*
;
Nursing
;
Parenting
;
Parents
;
Quality of Life*
3.The effect of audiovisual instruction that influences hormone replacement therapy uptake and changes of lifestyle behaviors related to osteoporosis in perimenopausal women.
Tae Heum JEONG ; Tae Hee JEON ; Mun Chan KIM ; Yeong Il KIM ; Dae Joon JEON ; Seoung Oh YANG ; Su Youn HAM ; Byung Kyun KO ; Sung Ryul KIM
Journal of the Korean Academy of Family Medicine 2000;21(11):1406-1414
No Abstract Available.
Female
;
Hormone Replacement Therapy*
;
Humans
;
Life Style*
;
Osteoporosis*
4.The Clinical Outcomes of 23-Gauge Transconjunctival Sutureless Vitrectomy for Endophthalmitis after Cataract Surgery.
Chan Yang JEON ; Tae Gon LEE ; Sung Jin NA
Journal of the Korean Ophthalmological Society 2011;52(10):1167-1172
PURPOSE: To report the clinical outcomes and utility of 23-gauge (G) transconjunctival sutureless vitrectomy (TSV) in patients with postoperative endophthalmitis following cataract surgery. METHODS: The medical records of 16 patients (17 eyes) who underwent 23-G TSV between January 2008 and December 2009 at Konyang University Hospital due to postoperative endophthalmitis following cataract surgery were retrospectively analyzed. The pre- and post-operative best-corrected visual acuities (BCVA), changes in intraocular pressure, the time from diagnosis to surgery, the intraoperative and postoperative complications, and the average duration of hospitalization were investigated. RESULTS: The mean BCVA significantly improved from log MAR 1.89 +/- 1.03 to log MAR 0.42 +/- 0.82 (p = 0.001), and the mean intraocular pressure changed from 16.1 +/- 4.1 mm Hg at baseline to 16.2 +/- 3.3 mm Hg on the first postoperative day without any significant difference (p = 0.955). In addition, none of the patients required sutures to treat wound leakage or showed hypotony on follow-up observation. The average operation time was 64.7 +/- 22.5 minutes, and the average duration of hospitalization was 5.4 +/- 4.5 days. CONCLUSIONS: The use of 23-G TSV in patients with postoperative endophthalmitis following cataract surgery may offer more convenience for the surgeon and more comfort for the patient. In addition, the patient may return to normal life earlier with a shortened duration of hospitalization.
Cataract
;
Endophthalmitis
;
Follow-Up Studies
;
Hospitalization
;
Humans
;
Intraocular Pressure
;
Medical Records
;
Postoperative Complications
;
Retrospective Studies
;
Sutures
;
Visual Acuity
;
Vitrectomy
5.The Significance of Electroencephalography in the Hypothermic Circulatory Arrest in Human.
Yang Bin JEON ; Chang Ha LEE ; Chan Young NAH ; Jung Ho KANG
The Korean Journal of Thoracic and Cardiovascular Surgery 2001;34(6):465-471
BACKGROUND: Hypothermia protects the brain by suppressing the cerebral metabolism and it is performed well enough before the total circulatory arrest(TCA) in the operation of aortic disease. Generally, TCA has been performed depending on the rectal or nasopharyngeal temperatures; however, there is no definite range of optimal temperature for TCA or an objective indicator determining the temperature for safe TCA. In this study, we tried to determine the optimal range of temperature for safe hypothermic circulatory arrest by using the intraoperative electroencephalogram(EEG), and studied the role of EEG as an indicator of optimal hypothermia. MATERIAL AND METHOD: Between March, 1999 and August 31, 2000, 27 patients underwent graft replacement of the part of thoracic aorta using hypothermia and TCA with intraoperative EEG. The rectal and nasopharyngeal temperatures were monitored continuously from the time of anesthetic induction and the EEG was recorded with a ten-channel portable electroencephalography from the time of anesthetic induction to electrocerebral silence(ECS). RESULT: On ECS, the rectal and nasopharyngeal temperatures were not consistent but variable(rectal 11degree C -25degree C, nasopharynx 7.7degree C -23degree C). The correlation between two temperatures was not significant(p=0.171). The cooling time from the start of cardiopulmonary bypass to ECS was also variable(25-127min), but correlated with the body surface area(p=0.027). CONCLUSION: We have found that ECS appeared at various body temperatures, and thus, the use of rectal or nasopharyngeal temperature were not useful in identifying ECS. Conclusively, we can not fully assure cerebral protection during hypothermic circulatory arrest in regards to the body temperatures, and therefore, the intraoperative EEG is one of the necessary methods for determining the range of optimal hypothermia for safe circulatory arrest.
Aorta, Thoracic
;
Aortic Diseases
;
Body Temperature
;
Brain
;
Cardiopulmonary Bypass
;
Electroencephalography*
;
Humans*
;
Hypothermia
;
Metabolism
;
Nasopharynx
;
Transplants
6.Arginine Vasopressin Therapy of Vasodilatory Shock after Cardiopulmonary Bypass : Two cases.
Young Chan AHN ; Chul Hyun PARK ; Jae Ik LEE ; Yang Bin JEON ; Kook Yang PARK
The Korean Journal of Thoracic and Cardiovascular Surgery 2006;39(1):60-63
Vasodilatory shock has been implicated in life-threatening complications after cardiac surgery. This syndrome may result from the vasopressin deficiency following cardiopulmonary bypass (CPB), which do not respond to fluids or usual intravenous inotropes. We used arginine-vasopressin in adults with vasodilatory shock coming off cardiopulmonary bypass. Therefore, we report these cases with a review of articles.
Adult
;
Arginine Vasopressin*
;
Arginine*
;
Cardiopulmonary Bypass*
;
Diabetes Insipidus, Neurogenic
;
Humans
;
Shock*
;
Thoracic Surgery
;
Vasodilation
;
Vasopressins
7.A Case of Orbital Infarction Syndrome in Rhino-Orbitocerebral Mucormycosis.
Suk Woo YANG ; Eun Jeong JEON ; Jong Chan KIM ; Ki Bong KIM
Journal of the Korean Ophthalmological Society 1999;40(4):1116-1121
Orbital infarction syndrome is defined as ischemia of all intraorbital and intraocular structures and is a rare disorder due to rich anastomotic vascularization of the orbit. It results in orbital and ocular pain, total ophthalmoplegia, anterior and posterior segment ischemia, and acute bindness. It can occur secondary to different mechanisms such as acute perfusion failure, systemic vasculitis, orbital cellulitis and vasculitis. We experienced a case of orbital infarction syndrome in a 61-year-old nonketotic diabetic woman who had developed paranasal sinusitis by mucormycosis and presented orbital cellulitis, multiple nerve paralysis, chorioretinal ischemia, facial necrosis around orbit and acute blindness. Prompt recognition of clinical pictures and rapid diagnosis is essential for early treatment of orbital infarction due to rhino-orbitocerebral mucormycosis because its progression is very rapid and fatal.
Blindness
;
Diagnosis
;
Female
;
Humans
;
Infarction*
;
Ischemia
;
Middle Aged
;
Mucormycosis*
;
Necrosis
;
Ophthalmoplegia
;
Orbit*
;
Orbital Cellulitis
;
Paralysis
;
Perfusion
;
Sinusitis
;
Systemic Vasculitis
;
Vasculitis
8.A Case of Orbital Infarction Syndrome in Rhino-Orbitocerebral Mucormycosis.
Suk Woo YANG ; Eun Jeong JEON ; Jong Chan KIM ; Ki Bong KIM
Journal of the Korean Ophthalmological Society 1999;40(4):1116-1121
Orbital infarction syndrome is defined as ischemia of all intraorbital and intraocular structures and is a rare disorder due to rich anastomotic vascularization of the orbit. It results in orbital and ocular pain, total ophthalmoplegia, anterior and posterior segment ischemia, and acute bindness. It can occur secondary to different mechanisms such as acute perfusion failure, systemic vasculitis, orbital cellulitis and vasculitis. We experienced a case of orbital infarction syndrome in a 61-year-old nonketotic diabetic woman who had developed paranasal sinusitis by mucormycosis and presented orbital cellulitis, multiple nerve paralysis, chorioretinal ischemia, facial necrosis around orbit and acute blindness. Prompt recognition of clinical pictures and rapid diagnosis is essential for early treatment of orbital infarction due to rhino-orbitocerebral mucormycosis because its progression is very rapid and fatal.
Blindness
;
Diagnosis
;
Female
;
Humans
;
Infarction*
;
Ischemia
;
Middle Aged
;
Mucormycosis*
;
Necrosis
;
Ophthalmoplegia
;
Orbit*
;
Orbital Cellulitis
;
Paralysis
;
Perfusion
;
Sinusitis
;
Systemic Vasculitis
;
Vasculitis
9.Relation of physical activity and calcium intake to bone mineral density in perimenopausal women.
Tae Heum JEONG ; Mun Chan KIM ; Yeong Il KIM ; Dae Joon JEON ; Seoung Oh YANG ; Su Youn HAM
Journal of the Korean Academy of Family Medicine 2001;22(1):96-104
BACKGROUND: Physical activity and calcium nutriture with reproductive endocrine status are primary controller of bone remodelling activity. There are differences in impact of exercise on early menopausal bone ; late menopausal bone. There are possibility of different effect of calcium intake on bone mass among different life stage. The aim of this study was to elucidate whether the relation between lifestyle and bone mineral density varied with life stages. METHODS: We examined bone mineral density and took questionnaires related to lifestyle of 1,698 women aged 49~54 years old who lived in ulsan from July 1999 to Dec. 1999. We selected 731 healthy subjects without medical conditions or lifestyle factors known to affect bone metabolism. RESULTS: In 6~10 years postmenopausal women, those with calcium intake of more than 600 or 800mg /day showed significantly greater BMD. In postmenopausal women , those daily consumption of milk showed greater BMD. But it is not significantly. In premenopausal women with regular menstruation, those who took regular exercise showed significantly greater BMD than those who did not. Working hours is not related with BMD. CONCLUSIONS: Our study showed that the relation between calcium intake or physical activity and BMD differed with life stages. It was suggested that life stages should be taken into consideration to perform lifestyle modifications for the prevention and management of osteoporosis.
Bone Density*
;
Calcium*
;
Female
;
Humans
;
Life Style
;
Menopause
;
Menstruation
;
Metabolism
;
Milk
;
Motor Activity*
;
Osteoporosis
;
Ulsan
;
Surveys and Questionnaires
10.A Clinical Cmparison Silicone and Acrysof IOLs.
Ki Bong KIM ; Seok Woo YANG ; Jong Chan KIM ; Eun Jeong JEON
Journal of the Korean Ophthalmological Society 1998;39(11):2639-2646
To evaluate and compare the clinical results of implantation of the Silicone and Acrysof IOLs in early postoperative period(to 3 months), we retrospectively analyzed 30 patients who had taken clear cornea incision and been implanted with Silicone IOL in one eye and Acrysof IOL in the other eye. There were no statistically significant difference in postoperative corrected visual acuity, corneal edema and postoperative astigmatic changes between silicone and acrysof IOLs. But, the rates of postoperative capsular fibrosis and contracture of Silicone IOL was higher than those of Acrysof IOL. In conclusion, in the degree and rate of after-cataract, Acrysof IOLs are more useful than silicone IOLs; therefore, more excellent in longterm visual prognosis. Further studies will be needed for the evaluation of clinical safety and efficacy.
Contracture
;
Cornea
;
Corneal Edema
;
Fibrosis
;
Humans
;
Prognosis
;
Retrospective Studies
;
Silicones*
;
Visual Acuity