1.Biochemical characterization of embryonic chick calvarial cells.
Jae Hyung YU ; Jung Kun KIM ; Kyung Suk CHA
Korean Journal of Orthodontics 1995;25(6):697-704
Chicken calvarial bone is known to contain various cell types, but their exact composition is unknown. By characterizing the chicken calvarial bone biochemically, it can be used to study biochemical, histochemical actions of bone cells in general. Calvaria of I8-day-old white leg horn embryo was aseptically dissected and bone cell populations were isolated by sequential enzymatic digestion. Histochemical study for osteoclast-like bone cell population was performed with tartrate resistant acid phosphatase(TRAP) stain and for osteoblast-like bone cell population, alkaline phosphatase(ALP) stain was performed. Biochemical study for osteoblast-like bone cell population was performed using alkaline phosphatasetal.P) assay. Following conclusions were obtained from this study. 1. TRAP positive multi and mononuclear cells were mostly observed in group I and II, indicating that osteoclast-like bone cell population is mostly found in these groups. 2. All the cultured groups showed almost equal ALP activities and were positive for ALP stain, indicating that osteoblast-like bone cell population is evenly dispersed in all culture groups. 3. Experimental group treated with I,25(OH)2D3 showed increase in ALP activity in contrast to the control group, confirming previous studies that I,25(OH)2D3 increases ALP activities in vitro bone cultures. 4. Results from von Kassa's stain indicated that in vitro bone formation had occured after 3 weeks of culture with beta glycero phosphate.
Animals
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Chickens
;
Digestion
;
Embryonic Structures
;
Horns
;
Leg
;
Osteoblasts
;
Osteoclasts
;
Osteogenesis
;
Skull
2.A Case of pseudoglucagonoma Syndrome Treated with Medium-chain Triglyceride.
Kyung Hyung SEO ; Jung Hum PARK ; Ho Sun JANG ; Kyung Sool KWON ; Tae Ahn CHUNG
Korean Journal of Dermatology 1997;35(3):593-599
Necrolytic migratory erythema is a rare, distinctive, necrotizing cutaneous eruption usually associated with glucagonoma, an alpha-cell tumor of the pancreas. Other clinical features include ane- mia, diabetes mellitus and weight loss. However, it also occurrs without the pancreatic glucagonoma. So this rare condition is called pseudoglucagonoma syndrome, and has been described in association with chronic hepatic diseases, malabsorption with villous atrophy, chronic pancreatitis, celiac sprue, hypoproteinemia and odontogenic infection. We report a case of pseudoglucagonoma syndrome induced by malnutrition without glucagonoma. A 28-year-old Korean female was referred to our department complaining of multiple erythematous, desquamative, crusted and erosive patches on the extremities, and diffuse scalp alopecia for 5 years. She also had perianal erosion, angular cheilitis without glossitis, amenorrhea, axillary and pubic hair loss, and weight loss. Six years previously she had had Whipples operation for a pancreatic solid and papillary neoplasm. The laboratory data showed hypoalbuminemia, essential fatty acid deficiency, diabetes mellitus and slightly high levels of zinc and glucagon. A skin biopsy showed irregular acanthosis, epidermal edema and pallor, dyskeratosis, areas of superficial epidermal necrosis and vascular dilatation of the papillary dermis. The patient improved dramatically after intravenous hyperalimentation and oral intake of mediurn chain triglyceride. For 2.5 years she has taken medium-chain triglycerides without any other treatment, and no side effects on recurrence has been observed.
Adult
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Alopecia
;
Amenorrhea
;
Atrophy
;
Biopsy
;
Celiac Disease
;
Cheilitis
;
Dermis
;
Diabetes Mellitus
;
Dilatation
;
Edema
;
Extremities
;
Female
;
Glossitis
;
Glucagon
;
Glucagonoma
;
Hair
;
Humans
;
Hypoalbuminemia
;
Hypoproteinemia
;
Malnutrition
;
Necrolytic Migratory Erythema*
;
Necrosis
;
Pallor
;
Pancreas
;
Pancreatitis, Chronic
;
Parenteral Nutrition, Total
;
Recurrence
;
Scalp
;
Skin
;
Triglycerides*
;
Weight Loss
;
Zinc
3.Cineangiographic analysis of criss-cross heart
Kyung Hoi KOO ; Kyung Mo YEON ; Jae Hyung PARK ; Man Chung HAN ; Jung Yun CHOI
Journal of the Korean Radiological Society 1985;21(3):445-453
9 cases of criss-cross heart anomaly, diagnosed by angiography from April, 1979 to Feb. 1985 at Seoul National University Hospital were reviewed. The results were as follows: 1. Of 9 cases, 6 cases were male and 3 cases werefemale and the age ranged from 2 months to 16 years of age. 2. Of 9 cases, 7 cases were concordant (D-loop) and 2cases were discordant (L-loop). segmental approaches are 2 cases of SDD(TGV) and each one case of SLD(TGV),SDD(DORV), SDL(DORV), SDD(DOLV), SLL(corrected TGV), and normal one. 3. Associated anomalies are small sized rightventricle (7 cases), especially inflow tract and sinus portion, pulmonary outflow tract obstruction(5 cases),VSD(9 cases), ASD( 7 cases), PDA(2 cases) and visceroatrial situs solitus was observed in all 9 cases but 1dextrocardia.
Angiography
;
Crisscross Heart
;
Humans
;
Male
;
Seoul
4.A clinical analysis of 80 renal transplantation.
Hyung Kyoo KIM ; Joon Hun JUNG ; Il Dong JUNG ; Kyung Ho SEO ; Jin Min KONG
The Journal of the Korean Society for Transplantation 1993;7(1):107-117
No abstract available.
Kidney Transplantation*
5.A Case of Polyarteritis Nodosa Combined with Dilated Cardiomyopathy.
Hee Jung CHOI ; Seong Ae JUNG ; Eun Young LEE ; Hae Kyung JUNG ; Gil Ja SHIN ; Woo Hyung LEE
Korean Circulation Journal 1994;24(4):668-674
Polyarteritis nodosa is systemic necrotizing vasculitis of medium and small-sized arteries and results in variable manifestations due to ischemia of the involving organs. Diagnosis can either be made pathologically by demonstrating necrotizing vasculitis of arteries or angiographycally by demonstrating small arterial aneurysm. We experienced a case of PAN with dilated cardiomyopathy, confirmed by clinical feature, renal biopsy, angiography and echocardiography.
Aneurysm
;
Angiography
;
Arteries
;
Biopsy
;
Cardiomyopathy, Dilated*
;
Diagnosis
;
Echocardiography
;
Ischemia
;
Polyarteritis Nodosa*
;
Vasculitis
6.Analysis of salpingeal patency in young-aged women underwent diagnostic laparoscopy with Fitz-High-Curtis Syndrome.
Ji Seon BAE ; Yeon Jae CHOE ; Min Hyung JUNG
Korean Journal of Obstetrics and Gynecology 2008;51(2):220-224
OBJECTIVE: To analyze the tubal patency in the young-aged women underwent diagnostic laparoscopy with Fitz-High-Curtis Syndrome (FHCS). METHODS: Clinicopathologic results of young-aged women who underwent diagnostic laparoscopy with pelvic inflammatory disease from March 2005 through April 2007 were reviewed. Twenty six patients aged 19-29 years old and preserved their both tubes after diagnostic laparoscopy were included in this study. All were underwent chromopertubation test (CPT) during laparoscopy and postoperative hysterosalpingography (HSG) 3 months later. RESULTS: Of 26 patients, eight patients were diagnosed with FHCS and the others were not. There was no significant difference in mean age, mean hospitalization days, and frequency in past-history of parturition, abortion, chlamydia and gonococci infection between patients with FHCS and with non-FHCS (P>0.05). There was no significant difference in frequency of tubal obstruction in laparoscopic CPT (P>0.05) but not in postoperative outpatient HSG (P<0.05). CONCLUSION: The tubal obstruction may be more frequent in FHCS than non-FHCS and the reliability of laparoscopic CPT for diagnosing the tubal obstruction is supposed to be low. Therefore, as for FHCS patients, HSG should be executed to investigate tubal factor which is helpful to forecast the fertility.
Aged
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Chlamydia
;
Fallopian Tube Diseases
;
Female
;
Fertility
;
Hospitalization
;
Humans
;
Hysterosalpingography
;
Laparoscopy
;
Outpatients
;
Parturition
;
Pelvic Inflammatory Disease
7.A modified elution method for determining the presence of fetal red blood cells.
No Bum LEE ; Hye Kyung LEE ; Jung Hwan SHIN ; Moon Il PARK ; Sung Ro CHUNG ; Hyung MOON
Korean Journal of Perinatology 1992;3(2):72-76
No abstract available.
Erythrocytes*
8.Enhancement of radiation effect using beta-lapachone and underlying mechanism.
Ki Jung AHN ; Hyung Sik LEE ; Se Kyung BAI ; Chang Won SONG
Radiation Oncology Journal 2013;31(2):57-65
Beta-lapachone (beta-Lap; 3,4-dihydro-2, 2-dimethyl-2H-naphthol[1, 2-b]pyran-5,6-dione) is a novel anti-cancer drug under phase I/II clinical trials. beta-Lap has been demonstrated to cause apoptotic and necrotic death in a variety of human cancer cells in vitro and in vivo. The mechanisms underlying the beta-Lap toxicity against cancer cells has been controversial. The most recent view is that beta-Lap, which is a quinone compound, undergoes two-electron reduction to hydroquinone form utilizing NAD(P)H or NADH as electron source. This two-electron reduction of beta-Lap is mediated by NAD(P)H:quinone oxidoreductase (NQO1), which is known to mediate the reduction of many quinone compounds. The hydroquinone forms of beta-Lap then spontaneously oxidizes back to the original oxidized beta-Lap, creating futile cycling between the oxidized and reduced forms of beta-Lap. It is proposed that the futile recycling between oxidized and reduced forms of beta-Lap leads to two distinct cell death pathways. First one is that the two-electron reduced beta-Lap is converted first to one-electron reduced beta-Lap, i.e., semiquinone beta-Lap (SQ).- causing production of reactive oxygen species (ROS), which then causes apoptotic cell death. The second mechanism is that severe depletion of NAD(P)H and NADH as a result of futile cycling between the quinone and hydroquinone forms of beta-Lap causes severe disturbance in cellular metabolism leading to apoptosis and necrosis. The relative importance of the aforementioned two mechanisms, i.e., generation of ROS or depletion of NAD(P)H/NADH, may vary depending on cell type and environment. Importantly, the NQO1 level in cancer cells has been found to be higher than that in normal cells indicating that beta-Lap may be preferentially toxic to cancer cells relative to non-cancer cells. The cellular level of NQO1 has been found to be significantly increased by divergent physical and chemical stresses including ionizing radiation. Recent reports clearly demonstrated that beta-Lap and ionizing radiation kill cancer cells in a synergistic manner. Indications are that irradiation of cancer cells causes long-lasting elevation of NQO1, thereby sensitizing the cells to beta-Lap. In addition, beta-Lap has been shown to inhibit the repair of sublethal radiation damage. Treating experimental tumors growing in the legs of mice with irradiation and intraperitoneal injection of beta-Lap suppressed the growth of the tumors in a manner more than additive. Collectively, beta-Lap is a potentially useful anti-cancer drug, particularly in combination with radiotherapy.
Animals
;
Apoptosis
;
Benzoquinones
;
Cell Death
;
Electrons
;
Humans
;
Hydroquinones
;
Injections, Intraperitoneal
;
Leg
;
Mice
;
NAD
;
Naphthoquinones
;
Necrosis
;
Radiation Tolerance
;
Radiation, Ionizing
;
Reactive Oxygen Species
;
Recycling
;
Substrate Cycling
9.Comparison of Betamethasone Concentration in Aqueous Humor Between Upper and Lower Fornix Subconjunctival Injection After Lens Delivery.
Hyung Woo KWAK ; Jung Hyoo MOON
Journal of the Korean Ophthalmological Society 1988;29(4):547-550
The purpose of this paper is to investigate the difference in concentration of 0.53% betamethasone in aqueour humor after betamethasone subconjunctival injection on upper and lower fornix after cataract extraction. A total of 8 rabbits were used. Cataract extractions were performed with the cryoprobe. After 6 hours, 0.53% betamethasone was subconjunctivally in upper fornix of the left eye and injected in lower fornix of the right eye. The control group of 3 rabbits underwent with the same procedures but the without lens delivery. the concentration of 0.53% betamethasone in aqueous humor was measured with HPLC(High Performance Liquid Chromatograph) after fine needle aspiration of aqueous humor. The results obtained were as follows. 1. In 5 eyes of the control group in 3 rabbits, 0.53%betamethasone was injected subconjunctivally on the lower fornix. The mean concentration of 0.53% betamethasone in aqueous humor was 0.544 +/- 0.0818 microgram/ml. 2. After 0.53% betamethasone subconjunctival injection on upper fornix after lens extraction, the mean concentration of 0.53% betamethasone in aqueous humor was 0.318 +/- 0.0117 microgram/ml. 3. After 0.53% betamethasone subconjunctival injection on lower fornix agter lens extraction, the mean concentration of 0.53%betamethasone in aqueous humor was 0.702 +/- 0.0332 microgram/ml. 4. The mean concentration of the betamethasone in aqueous humor after 0.53% betamethasone subconjunctival injection on lower fornix after lens extraction was significantly higher than on upper fornix(p<0.05).
Aqueous Humor*
;
Betamethasone*
;
Biopsy, Fine-Needle
;
Cataract Extraction
;
Rabbits
10.A Case of Limb-Body Wall Complex.
Chang Hoon SONG ; Sang Joon CHOI ; Hyung Gyun ROH ; Kyung LEE ; Hyuk JUNG
Korean Journal of Perinatology 1998;9(1):70-74
Limb-Body Wall complex is a complicated with the essential features of neural-tube defects, body-wall disruption, and limb abnormalities. This complex should be distinguished from other body-wall defects including omphalocele and gastroschisis since the prognosis for limb-body wall is uniformly poor. We have experienced one case of limb-body wall complex in a 22-year-old primigravida, which is presented with a brief review of the literature.
Extremities
;
Gastroschisis
;
Hernia, Umbilical
;
Humans
;
Prognosis
;
Young Adult