1.Cardioprotective Efficacy of Ischemic Preconditioning on Long-Term Myocardial Preservation in Isolated Rat Heart.
Dong Myung HUH ; Bong Hyun CHANG
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(8):605-612
BACKGROUND: Ischemic preconditioning enhances the tolerance of myocardium against ischemia/reperfusion injury, with the enhancement of the recovery of post-ischemic myocardial function. This study was disigned to assess whether the protective effect of ischemic preconditioning could provide one additional hour of myocardial preservation in four hour myocardial ischemia in a rate heart. MATERIAL AND METHOD: Fourty four Spargue-Dawley rats, weighing 300-450gm, were divided into four groups. Group 1(n=7) and group 3 (n=12) were subjected to 30 minutes of aerobic Langendorff perfusion without ischemic preconditioning and then preserved in saline solution at 2-4 degree C for 4 hours and 5 respectively. Group 2 (n=7) and group 4 (n=18) were perfused in the same way for 20 minutes, followed by 3 minutes of global mormothermic ischemia and 10 minutes of perfusion and then preserved in the same cold saline solution for 4 hours and 5 hours respectively. Heart rate, left ventricular developed pressure (LVDP), and coronary flow were measured at 15 minutes during perfusion as baseline. Spontaneous defibrillation time was measured after reperfusion. Heart rate, LVDP, and coronary flow were also recorded at 15 minutes, 30 minutes, and 45 minutes during reperfusion. Samples of the apical left ventricular wall were studied using a transmission electron microscope. Time of spontaneous defibrillation (TSD) was significantly longer in group 4 than in group 1 (p<0.001), and TSD in group 1 was significantly longer in comparision to that of group 2 (p<0.05). Heart rate at 45 minutes was significantly higher in group 1 than in group 4 (p<0.05). Heart rate at 15 min was significantly higher in group 2 than in group 1(p<0.001) and in group 4 than in group 3 (p<0.05). Left ventricular developed pressure (LVDP) at 30 minutes and 45 minutes was higher in group 1 than in group 4 (p<0.01), LVDP at 45 minutes was higher in group 4 than in group 3 (p<0.05). Rate-pressure product (RPP) at 30 minutes and 45 minutes was higher in group 1 than in group 4 (p<0.05). RPP at 15 minutes was higher in group 2 than in group 1 (p<0.01). RPP at 30 minutes and 45 minutes was higher in group 4 than in group 3 (p<0.05). Group 2 showed relatively less sarcoplasmic edema and less nuclear chromatin clearance than group 1. Group 4 showed less myocardial cell damage than group 3, group 4 showed less myocardial cell damage than group 3, group 4 showed more myocardial cell edema than group 1. CONCLUSION: Ischemic preconditioning enhanced the recovery of postischemic myocardial function after 4 hours and 5 hours preservation. However, it was not demonstrated that ischemic preconditioning could definitely provide one additional hour of myocardial preservation in four hour myocardial ischemia in a rat heart.
Animals
;
Chromatin
;
Edema
;
Heart Rate
;
Heart*
;
Ischemia
;
Ischemic Preconditioning*
;
Myocardial Ischemia
;
Myocardium
;
Perfusion
;
Rats*
;
Reperfusion
;
Sodium Chloride
2.I.T.P. in fullterm gravida due to chickenpox infection.
Heon Soo LEE ; Chang Kyu HUH ; Chi Dong HAN
Korean Journal of Obstetrics and Gynecology 1991;34(11):1630-1635
No abstract available.
Chickenpox*
3.Influence of Enalapril on Blood Pressure in Spontaneously Hypertensive Rats.
Hyoung Ho HUH ; Uy dong SON ; Choong Young KIM ; Jyung Dong BAE
Korean Circulation Journal 1991;21(3):539-545
We aimed to evaluate the long term trantment of enalapril on the vascular response in the isolated aorta, and in anesthetized or pithed spontaneously hypertensive rats(SHR). In the isolated aorta, the increase in tension provoked by addition of KC1 16.7mM was attenuated by enalapril treatment(3mg/kg/day for 6 weeks), whereas the increment by addition of NE 0.1uM tension was not influenced. The frequency-dependent vasoconstricution induced by electrical field stimulation of aorta was also attenuated by enalapril treatment. In pithed SHR, the frequency-related hypertension provoked by electrical stimulation(10sec, 1ms with 40V) of sympathetic pregnglionic nerve was also attenuated by enalapril treatment. Neither dose-related vasorelaxation by acetylcholine addition in the aorta nor decrease of DBP by intravenously(i.v.)-injected aetylcholine was altered by enalapril treatment. However, beta2-agonist, salbutamol-induced vasorelaxation in enalapril-treated group, was more remarkable than that in control group. The hypotension by i.v.-but not by intracerebroventricularly-injected salbutamol strengthened by enalapril treatment. These results suggest that the suppression of development of hypertension by enalapril treatment may result from the reduction of adrenergic neurotransmission and activity to voltage dependent calcium channel by acting on vascular smooth muscle itself.
Acetylcholine
;
Albuterol
;
Aorta
;
Blood Pressure*
;
Calcium Channels
;
Enalapril*
;
Hypertension
;
Hypotension
;
Muscle, Smooth, Vascular
;
Rats, Inbred SHR*
;
Synaptic Transmission
;
Vasodilation
4.Expression of CD44 Splice Variants(v4/5 and v6), alpha-Smooth Muscle Actin, and nm23 Proteins in IB-IIB Uterine Cervical Cancer.
Hee Kyung CHANG ; Man Ha HUH ; Dong Hee KIM ; Un Dong PARK
Korean Journal of Pathology 1997;31(6):546-556
We examined the expressions of CD44 splice variants (v4/5, v6), alpha-smooth muscle actin, nm23 to evaluate their roles as prognostic factors in 70 cases of uterine cervical carcinoma (stage IB to IIB) who were surgically treated from January 1989 to June 1990 with a clinical follow-up of a minimum of 5 years. The expression was examined by an immunohistochemical method using archival formalin fixed paraffin embedded tissue. In the 70 cases, 61 cases were squamous cell carcinoma and 9 cases were adenocarcinoma. CD44v4/5, CD44v6, alpha-smooth muscle actin, and nm23 were detected in 41.4%, 70%, 100%, and 74.3% of tumor samples, respectively. CD44 splice variants and nm23 showed membrane and cytoplasmic staining of tumor cells, respectively. The expression of alpha-smooth muscle actin showed cytoplasmic staining confined to stromal cells and was classified into three grades by the extent in stromal cells: with less than 10% of stromal cells; 32.9%, 10-50% of stromal cells; 40.0%, more than 50%; 27.1%. These expressions were not correlated with histologic types, lymph node involvement, recurrence, and grades of tumor infiltrating lymphocyte (TIL). But CD44v4/5 had significantly inverse correlation with TIL (p=0.049). The expression of CD44v4/5 was significantly correlated with that of CD44v6 (p=0.05), and that of alpha-smooth muscle actin was inversely correlated with that of nm23 (p=0.049). In conclusion, in FIGO IB-IIB uterine cervical carcinoma CD44 variants, nm23, and SMA show high prevalence, however, with little prognostic significance assessed by recurrence and lymph node metastasis.
Actins*
;
Adenocarcinoma
;
Carcinoma, Squamous Cell
;
Cytoplasm
;
Follow-Up Studies
;
Formaldehyde
;
Lymph Nodes
;
Lymphocytes
;
Membranes
;
Neoplasm Metastasis
;
Paraffin
;
Prevalence
;
Recurrence
;
Stromal Cells
;
Uterine Cervical Neoplasms*
5.Evidence-Based Treatment of Alzheimer's Disease.
Dong Woo LEE ; Yoon Seok HUH ; Ki Woong KIM
Journal of the Korean Medical Association 2009;52(4):417-425
The pharmacological treatment of Alzheimer's disease is based on symptomatic therapy of cognitive decline and behavioral problems. Numerous therapies have been investigated for the treatment and prevention of Alzheimer's disease. We reviewed the current evidence-based medical research and guidelines of treatment for Alzheimer's disease. The use of cholinesterase inhibitors (ChEI) and N-methyl-D-aspartate (NMDA) inhibitors can bring about significant but modest therapeutic improvement. There is insufficient evidence to recommend vitamine E, estrogen, ginko biloba, or nonsteroidal anti-inflammatory drugs (NSAIDs) for the prevention or treatment of Alzheimer's disease. This article reviews the available data on current pharmacological treatments through evidence-based medicine.
Alzheimer Disease
;
Cholinesterase Inhibitors
;
Estrogens
;
Evidence-Based Medicine
;
Ginkgo biloba
;
Memantine
;
N-Methylaspartate
;
Vitamins
6.Clincal Results according to the Level and Extent of Sympathicotomy in Axillary Hyperhidrosis.
The Korean Journal of Thoracic and Cardiovascular Surgery 2005;38(8):570-575
BACKGROUND: Video-assisted thoracic sympathicotomy plays an important role as an effective method for the treatment of axillary hyperhidrosis. People with axillary hyperhidrosis were not satisfied by the occurrence of the high rate of disabling compensatory hyperhidrosis and axillary resweating. Therefore, by comparing and assessing the clincal results according to the level and extent of sympathicotomy in axillary hyperhidrosis, we aim to determine which method will result in maximal benefits. MATERIAL AND METHOD: Among 70 patients suffering from axillary hyperhidrosis having undergone thoracoscopic sympathicotomy from January 2001 through December 2003, 57 patients who responded to either telephone interview or questionnaire were included in the current study. The patients were divided into two groups, Group I (n=25): patients having undergone R3, 4, 5 sympathicotomy which consist of blocking the interganglionic neural fiber on the third, fourth, and fifth rib, Group II (n=32): patients having undergone R3,4 sympathicotomy which consist of blocking the interganglionic neural fiber on the third and fourth rib. The study parameters were satisfaction rate and degree of compensatory sweating. RESULT: There was no difference on age and sex, family history, combined hyperhidrosis, and mean follow up month between the two groups. Patients expressing satisfaction were 88.0% in group and 56.3% in groups II with statistically significant difference (p=0.02). Moderate to severe compensatory sweating were 52.0% (embrassing 6 patients, disabling 7 patients) in group I and 62.5% (embrassing 5 patients, disabling 15 patients) in groups II with no significance in the statistical analysis. CONCLUSION: R3, 4, 5 sympathicotomy was an effective means of treating axillary hyperhidrosis because of higher long term satisfaction rate.
Follow-Up Studies
;
Humans
;
Hyperhidrosis*
;
Interviews as Topic
;
Quality of Life
;
Surveys and Questionnaires
;
Ribs
;
Sweat
;
Sweating
7.The Comparison Study of teh Effect of Ambroxol on Prevention of Infantile Respiratory Distress Syndrome in Preterm Delivery.
Kyung Hwan HAN ; Jung Don PARK ; Chi Dong HAN ; Chang Gyu HUH ; Soon Gu HWONG
Korean Journal of Perinatology 1997;8(1):21-26
This study was conducted to evaluate the effect of ambroxol on preventing the infantile respiratory distress syndrome (IRDS) in preterm birth at the Dept. of Obstetrics and Gynecology of Taegu Catholic Medical Center during the period from Jan. 1996 to Dec. 1996. Total of 68 cases were evaluated including 16 ambroxol group and 52 control group. The result were as follows : 1. In the comparison of preventing IRDS, there was 0 case of IRDS in ambroxol group and 7 cases of IRDS in control group (13.46 %). There was a significant difference between two groups (p<0.05). 2. The side effects of ambroxol after administration were nausea in 5 cases, headache in 3 cases, and chest discomfort in 4 cases, but these were not serious and self controlled. 3. There was no significant difference in neonatal morbidity between two groups (p > 0.05).
Ambroxol*
;
Daegu
;
Gynecology
;
Headache
;
Nausea
;
Obstetrics
;
Premature Birth
;
Respiratory Distress Syndrome, Newborn*
;
Thorax
8.Duodenal Obstruction due to Peptic Ulcer in Children.
Young Soo HUH ; Won Jong LEE ; Wook Dong KIM ; Bo Yang SUH ; Kwoing Bo KWUN
Yeungnam University Journal of Medicine 1989;6(1):43-46
Primary peptic ulcer disease in not known to be the result of underlying illness or trauma. These are most frequently duodenal or prepyloric. Since clinical features of peptic ulcer in children can easily be confused with many other disorders, the diagnosis is usually made when one of the more dramatic presentations, such as perforation, bleeding and obstruction. Recently, we experienced 2 cases of duodenal obstruction due to peptic ulcer in children. So, we report it with review of references.
Child*
;
Diagnosis
;
Duodenal Obstruction*
;
Hemorrhage
;
Humans
;
Peptic Ulcer*
9.Clinical Assessment of Visual Internal Urethrotomy as Primary Treatment of Urethral Stricture.
Geol HUH ; Gyung Woo JUNG ; Jin Han YOON
Korean Journal of Urology 1996;37(7):798-803
PURPOSE: We describe clinical assessment of visual internal urethrotomy (VIU) as primary treatment modality in 69 men who presented with complete or partial obstructed urethral stricture. MATERIALS AND METHODS: The 63 patients with partial obstructed urethral stricture were treated by typical VIU. The 6 men with complete obstructed urethral stricture were treated by VIU using sound passed through previously placed suprapubic tract as guide. RESULTS: The procedure was completed successfully in 57 of the 63 men with partial obstructed (90.5%) and 3 of 6 patients with complete obstructed urethral stricture (50%). CONCLUSIONS: VIU is a safe and effective as primary treatment plan when urethral stricture is partial obstructed and the impassable urethral segment is shorter than 1.0cm.
Humans
;
Male
;
Urethral Stricture*
10.A Case of Phthiriasis Palpebrarum.
Dong Ho LEE ; Sun HUH ; Mi A SOHN
Journal of the Korean Ophthalmological Society 1997;38(4):698-701
Phthiriasis has been usually known as a sexually-transmitted disease. The majority of these cases are found in the hair of the genital lesion, however, infestation of the eyelashed may occur. Eyeld involvement frequently causes blepharitis or conjunctivitis. The authors found a crab louse, Phthirus pubis and their nits on the eyelashes of 22-year-old female who complained foreign body and itching sensation of her right upper lid. Treatment is accomplished by careful mechanical removal of the louse and nits followed by the epilation and alllication of antibiotic eyedrops. We report a case of Phthiriasis palpebrarum with a review of the literatures.
Blepharitis
;
Conjunctivitis
;
Eyelashes
;
Female
;
Foreign Bodies
;
Hair
;
Hair Removal
;
Humans
;
Ophthalmic Solutions
;
Pediculus
;
Phthiraptera
;
Phthirus
;
Pruritus
;
Sensation
;
Young Adult