1.Serochemical and Histopathological Observations on the Effect of Malotilate in Chronic Liver Injury Induced by Carbon Tetrachloride with or without Ethanol.
Hyoung Chun KIM ; Eon Sub PARK ; Jae Hyung YOO ; Kye Yong SONG
Korean Journal of Pathology 1989;23(2):223-234
An experimental studies were carried out to observe the protective effects of malotilate, a new antihepatotoxic agent, on the chronic hepatic injury induced by CCl4 with or without ethanol. The rats used weighed about 200g were divided into 2 groups, 4 weeks & 8 weeks. Each group was given by orally with malotilate, 100 mg/kg, once a day, and was injected by subcutaneously with CCl4 1.5 mg/kg in a mixture with olive oil twice a week. Aqueous ethanol (20%) was administered in drinking water daily. The serochemical and histopathological studies were carried out in each experimental group. The results were as follows: 1. The chronic liver injuries induced by CCl4 with or without ethanol were significantly ameliorated by normalize serum values GOT, GPT. Alkaline phosphatase, Cholesterol, HDL-Cholesterol, and gamma glutamyl transpeptidase. 2. In Group of 4 weeks, malotilate manifested protective effects by significant inhibition of fatty changes, spotty necrosis and fibrosis in CCl4-intoxicated liver with or without additional ethanol. 3. In group of 8 weeks, malotilate significantly imoproved fatty changes, fibrogenic activity in the group administered with CCl4, followed by ethanol.
Rats
;
Animals
2.Nefazodone and Associated Perceptual Disturbance : A Report of Four Cases.
Ji Yun KIM ; Hyoung Seok SONG ; Bang Hyun CHO ; Yong Ku KIM
Journal of the Korean Society of Biological Psychiatry 1999;6(2):259-263
Nefazodone, a newer antidepressant is a phenylpiperazine derivative that inhibits the reuptake of both norepinephrine and serotonin, and antagonizes 5-HT2A and alpha1 adrenergic receptors. Compared with SSRIs nefazodone caused the fewer activating symptoms, adverse gastrointestinal effects(nausea, diarrhea, anorexia) and adverse effects of sexual function, but is associated with the more dizziness, dry mouth, constipation, visual disturbances and confusion. We report on 4 cases of visual disturbances and hallucinations in patients taking nefazodone. 1) Nefazodone, as a 5-HT2A antagonist, might induce visual disturbances. 2) mCPP, metabolite of nefazodone might contribute to the hallucination through action on 5-HT receptor. 3) Dopaminergic enhancing activity of nefazodone might cause hallucination. The case report raises the possibility that dose-related perceptual disturbances may exist with nefazodone. The fact emphasizes the need to pay close attention to all possible drug interactions, particularly in patients treated with multiple psychoactive agents, older patients, and patients with decreased hepatic function.
Constipation
;
Diarrhea
;
Dizziness
;
Drug Interactions
;
Hallucinations
;
Humans
;
Mouth
;
Norepinephrine
;
Psychotropic Drugs
;
Receptors, Adrenergic
;
Serotonin
;
Serotonin 5-HT2 Receptor Antagonists
3.Effect of Hypo-osmotic Swelling (HOS) Test on Subsequent Post-thaw Testicular Spermatozoa.
Yong Seog PARK ; Hyoung Song LEE ; Sang Jin SONG ; Jeong Wook KIM ; Inn Soo KANG ; Ju Tae SEO
Korean Journal of Fertility and Sterility 2000;27(3):267-274
OBJECTIVES: We have previous reported that thawed testicular sperm and sperm extracted from seminiferous tubule could achieved optimal fertilization and pregnancy in azoospermic patients. However, thawed testicular sperm did not show motility in many cases. Therefore we studied viability of immotile sperm extracted from frozen-thawed seminiferous tubule using hypo-osmotic swelling (HOS) test and eosin-Y test. MATERIALS AND METHODS: After sperm extraction using for ICSI, the remained sections of seminiferous tubules were frozen with computerized freezer. For thawing and preparation of testicular sperm, the seminiferous tubules were thawed by removing from LN2 and letting them at room temperature for 10 min followed by 37degrees C water bath for 10 min. The prepared samples were washed for free of preservation medium and sperm preparation method described previous. Sperm was suspended in 0.1 ml hypoosmotic solution. After 30 minutes, the type of distally coiled sperm were assessed. RESULTS: In 44 cases of cryopreservation of seminiferous tubules in obstructive azoospermic patients, the fertilization rates with 2PN were 71.4% and pregnancy rates were 34.1%. The presence of motile spermatozoa on subsequent post-thaw testicular sperm remarked 15.1% and were increased to 77.3% just before ICSI. After sperm extracted from frozen-thawed seminiferous tubule, 3 hrs later in in vitro culture, the cases of presence of motile sperm, reaction of hypo-osmotic swelling test and viable sperm were 63.6% (28/44), 93.2% (41/44), and 77.3% (34/44), respectively. CONCLUSIONS: Just after post-thawed testicular sperm did not showed motility. Although motility was gained after in vitro culture, many cases showed non-motile sperm until optimal insemination time. However, HOS test showed positive reaction in non-motile sperm. Therefore, HOS test is an alternative method for the selection of viable sperm for ICSI.
Baths
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Cryopreservation
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Fertilization
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Humans
;
Insemination
;
Linear Energy Transfer
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Pregnancy
;
Pregnancy Rate
;
Seminiferous Tubules
;
Sperm Injections, Intracytoplasmic
;
Spermatozoa*
;
Water
4.A case of unilateral megalencephaly.
Woo Seog KIM ; Nam Soo PARK ; Moo Young SONG ; Un Jun HYOUNG ; Jin Oh LE ; Yong Seung HWANG
Journal of the Korean Pediatric Society 1993;36(6):877-881
The unilateral megalencephaly is a rare brain malformation characterized by cerebral asymmetry and cortical dysplasia caused by faulty migration of the subependymal neuroblasts. We experienced a case of unilateral megalencephaly in a two day-old male with the chief complaint of asymmetric head appearance. Large left hemisphere with agyria, pachygyria, dilatation of lateral ventricle, and the thick cortex of the ipsilateral hemisphere were showed in brain MRL, Clinical findings in this case were intractable seizure, hemiparesis, and psychomotor retardation. A review of literatures was also presented briefly.
Brain
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Dilatation
;
Head
;
Humans
;
Lateral Ventricles
;
Lissencephaly
;
Male
;
Malformations of Cortical Development
;
Paresis
;
Seizures
5.Morphological Study on the Development of Medial Lamellar Unit in the Wall of Aorta and its Major Branches in Human Fetuses.
Hyoung Woo PARK ; Yong Hee LEE ; Seh Hoon SONG
Korean Journal of Anatomy 1999;32(1):11-16
The structure of the arterial wall is formed and controlled by various hemodynamic factors in the adults and fetuses. Furthermore, recent studies of human fetuses at varying stages confirmed that the number of elastic medial lamellar unit (MLU) increased with age and decreased along it length from arch to lower abdominal aorta. Using human fetuses between 9 to 28 week of development, we traced the change in the number of MLU along the arch of aorta from which 3 major branches, the brachiocephalic trunk, left common carotid artery, left subclavian artery, arose. The number of MLU along the arch of aorta increased with age, but there were regional differences in the increase. Increase in the number of MLU was prominent in the proximal part of the arch before 15 week of development, but in the distal part after 15 week of development. Branch with greater diameter had more MLU. So the brachiocephalic trunk had the most MLU among 3 branches. When compare the sum of number of MLU in one branch (A) and in the arch after origin of branch (B) to the number of MLU in the arch before origin of brahch (C), A+B was always greater than C. This means that the MLU does not form a complete sheet along the aorta and new MLU is added to the wall of branch probably due to shear stress.
Adult
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Aorta*
;
Aorta, Abdominal
;
Brachiocephalic Trunk
;
Carotid Artery, Common
;
Fetus*
;
Hemodynamics
;
Humans*
;
Subclavian Artery
6.Fibrinogen-Based Collagen Fleece Graft Myringoplasty for Traumatic Tympanic Membrane Perforation.
Seung Hyo CHOI ; Hyoung Yong SONG ; Chan Il SONG
Journal of Audiology & Otology 2016;20(3):139-145
BACKGROUND AND OBJECTIVES: The aim of this study was to investigate how fibrinogen-based collagen fleece (Tachocomb®) graft myringoplasty (FCGM), performed under microscopic guidance, improves both hearing and tympanic membrane tissue repair in patients with traumatic tympanic membrane perforation (TMP). SUBJECTS AND METHODS: Between August 2009 and March 2015, a total of 52 patients with traumatic TMP visited the department of otorhinolaryngology at a secondary medical center. Twenty-nine of these underwent FCGM under microscopic guidance in our outpatient clinic. For each patient, we recorded the location and size of the perforation, the time elapsed from the onset of TMP until the myringoplasty, and the hearing level both before and after myringoplasty. RESULTS: The TMP closed completely in all cases (29 of 29 patients). After myringoplasty, the postoperative air-bone gap (ABG) differed significantly from the preoperative ABG. Three of the 29 patients (10.3%) experienced complications. Specifically, 2 presented with otorrhea after FCGM, but conservative management led to improvement without recurrence of perforation. One patient showed delayed facial palsy 1 week after the procedure. The condition of this patient also improved and the palsy was not permanent. CONCLUSIONS: FCGM may be an effective treatment option in case of traumatic TMP. The procedure requires no hospitalization, and can be used to avoid traditional tympanoplasty.
Ambulatory Care Facilities
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Collagen*
;
Facial Paralysis
;
Hearing
;
Hearing Loss, Conductive
;
Hospitalization
;
Humans
;
Myringoplasty*
;
Otolaryngology
;
Paralysis
;
Recurrence
;
Thymidine Monophosphate
;
Transplants*
;
Tympanic Membrane Perforation*
;
Tympanic Membrane*
;
Tympanoplasty
7.Treatment of Gastric Outlet Obstruction by Stomach Cancer with using Double-layered Pyloric Stent.
Soo Hyoung LEE ; Dae Hwan KANG ; Yong Mock BAE ; Cheul Woong CHOI ; Tai In HA ; Chan Ho PARK ; Hyoung Yoel PARK ; Sun Mi LEE ; Gwang Ha KIM ; Geun Am SONG
Korean Journal of Gastrointestinal Endoscopy 2007;35(4):221-227
Backgroud/Aims: Endoscopic stent placement is widely used to treat an unresectable malignant gastric outlet obstruction. The covered stent has the disadvantage of an increased risk of migration, and the uncovered stent has an increased risk of ingrowth. This study examined the technical and clinical efficiency of stent placement of a double-layered combination pyloric stent that was newly designed to reduce tumor ingrowth and stent migration. METHODS: Fifteen patients with a gastric outlet obstruction caused by unresectable stomach cancer were treated with the endoscopic placement of a double-layered combination pyloric stent (an outer uncovered stent to reduce migration and an inner PTEF-covered stent to prevent tumor ingrowth). The technical success, clinical success, and complication especially tumor ingrowth and stent migration were analyzed. RESULTS: Technical success was achieved in 15 out of 15 (100%) patients. Among the 15 patients in whom endoscopic stenting was placed successfully, the clinical success rate was 93.3%, the incidence of tumor ingrowth was 0%, the rate of migration was 6.7%, and tumor overgrowth was observed in 13.3%. The median stent patency period was 105 days. CONCLUSIONS: The placement of a double- layered pyloric combination stent appears to be effective in overcoming the disadvantage of the increased migration observed for a covered stent and the increased ingrowth observed for the uncovered stent.
Gastric Outlet Obstruction*
;
Humans
;
Incidence
;
Stents*
;
Stomach Neoplasms*
;
Stomach*
8.Development of Program for Renal Function Study with Quantification Analysis of Nuclear Medicine Image.
Ju Young SONG ; Hyoung Koo LEE ; Tae Suk SUH ; Bo Young CHOE ; Kyung Sub SHIN ; Yong An CHUNG ; Sung Hoon KIM ; Soo Kyo CHUNG
Korean Journal of Nuclear Medicine 2001;35(2):89-99
PURPOSE: In this study, we developed a new software tool for the analysis of renal scintigraphy which can be modified more easily by a user who needs to study new clinical applications, and the appropriateness of the results from our program was studied. MATERIALS AND METHODS: The analysis tool was programmed with IDL5.2 and designed for use on a personal computer running Windows. For testing the developed tool and studying the appropriateness of the calculated glomerular filtration rate (GFR), 99mTc-DTPA was administered to 10 adults in normal condition. In order to study the appropriateness of the calculated mean transit time (MTT), 99mTc-DTPA and 99mTc-MAG3 were administered to 11 adults in normal condition and 22 kidneys were analyzed. All the images were acquired with ORBITOR, the Siemens gamma camera. RESULTS: With the developed tool, we could show dynamic renal images and time activity curve (TAC) in each ROI and calculate clinical parameters of renal function. The results calculated by the developed tool were not different statistically from the results obtained by the Siemens application program (Tmax: p=0.68, Relative Renal Function: p=1.0, GFR: p=0.25) and the developed program proved reasonable. The MTT calculation tool proved to be reasonable by the evaluation of the influence of hydration status on MTT. CONCLUSION: We have obtained reasonable clinical parameters for the evaluation of renal function with the software tool developed in this study. The developed tool could prove more practical than conventional, commercial programs.
Adult
;
Gamma Cameras
;
Glomerular Filtration Rate
;
Humans
;
Kidney
;
Microcomputers
;
Nuclear Medicine*
;
Radionuclide Imaging
;
Running
;
Technetium Tc 99m Mertiatide
9.Treatment Results of 111 Cases of Antrochoanal Polyp.
Hyoung Yong SONG ; Jong Hwan WANG ; Myeong Sang YU ; Yoo Sam CHUNG ; Bong Jae LEE
Journal of Rhinology 2010;17(2):97-101
BACKGROUND AND OBJECTIVES: Antrochoanal polyp (ACP) is a benign maxillary sinus polyp that originates from the mucosa of the maxillary sinus, passes through the sinus ostium, and extends into the choana. Surgical methods employed in the treatment of antrochoanal polyp are simple avulsion, Caldwell-Luc operation, osteoplastic maxillary sinus operation, and endonasal endoscopic removal. In this study, we evaluated the clinical presentation of ACP and compared its surgical outcomes. MATERIALS AND METHODS: We retrospectively reviewed 111 patients who were treated for ACP between January 1995 and May 2008, and analyzed clinical features, radiologic findings, and surgical results. RESULTS: The study group consisted of 111 patients (65 males, 46 females) with a mean age of 20.0 years (range, 4 to 70). Sixty-one cases were accompanied by sinusitis (20 with unilateral sinusitis, 41 with bilateral sinusitis). Endoscopic sinus surgery (ESS) was used to treat 95 cases, and the external approaches of Caldwell-Luc operation or osteoplastic maxillary sinus operation were applied in 12 and four cases, respectively. Among those who received ESS, ACP recurred in 16 cases, whereas none of the patients who received the external approach showed recurrence. CONCLUSION: Endoscopic sinus surgery is a good alternative method for the treatment of ACP. If the antral part of ACP cannot be removed completely, an external approach such as Caldwell-Luc operation or osteoplastic maxillary sinus operation for pediatric patients may be considered to prevent recurrence.
Carbamates
;
Humans
;
Male
;
Maxillary Sinus
;
Mucous Membrane
;
Organometallic Compounds
;
Polyps
;
Recurrence
;
Retrospective Studies
;
Sinusitis
10.The effect of 6 weeks of treatment with inhaled budesonide on bronc-hial hyperresponsiveness and adrenal function in asthmatic patients.
Kwan Hyoung KIM ; Yong Seok OH ; Chi Hong KIM ; Soon Seong KWON ; Young Kyoon KIM ; Ki Don HAN ; Hwa Sik MOON ; Jeong Sup SONG ; Sung Hak PARK
Tuberculosis and Respiratory Diseases 1992;39(3):219-227
No abstract available.
Budesonide*
;
Humans