1.Effects of Some Drugs and Toxins on Positive Rate of Y-Body in Leukocytes of Rabbits.
Korean Journal of Urology 1976;17(2):77-94
This study was carried out to investigate the response of interphase Y chromosome to some drugs and toxins by observing the rate of leukocytes showing Y-body in the peripheral blood. The interphase Y chromosomes of blood leukocytes were stained with quinacrine mustard and the animals used were rabbits, rats and guinea pies. Y-bodies of leukocytes were studied in the animals as well as in man. Changes in positive rate of Y-body in leukocytes and total leukocyte count were observed in the rabbits administered with drug or toxin. The results concerning the rate of Y-body were as follows: 1. Y-bodies were present in the blood leukocytes of the animals. However positive rates in mononuclear and polymorphonuclear leukocytes were lower in animals that in man. The positive rate of Y-body was higher in mononuclear leukocytes than in polymorphonuclear leukocytes in the animals as in man. 2. Bacterial toxins such as typhoid, D.P.T. and cholera vaccines and anticancer drugs such as busulfan and endoxan reduced the positive rates of Y-body both in mononuclear leukocytes and in polymorphonuclear leukocytes. 3. Benzene known as bone marrow toxin reduced the positive rate of Y-body in mononuclear leukocytes, but not that in polymorphonuclear leukocytes. Quinine known as general protoplasmic poison reduced the positive rate of Y-body not only in mononuclear leukocytes but also in polymorphonuclear leukocytes. 4. Antibiotics such as tetracycline and chloramphenicol and steroid hormones such as estrogen, testosterone and prednisolone had no effects on the positive rate of Y-body both in mononuclear leukocytes and in polymorphonuclear leukocytes.
Animals
;
Anti-Bacterial Agents
;
Bacterial Toxins
;
Benzene
;
Bone Marrow
;
Busulfan
;
Chloramphenicol
;
Cholera Vaccines
;
Cyclophosphamide
;
Cytoplasm
;
Estrogens
;
Guinea
;
Interphase
;
Leukocyte Count
;
Leukocytes*
;
Leukocytes, Mononuclear
;
Neutrophils
;
Prednisolone
;
Quinacrine Mustard
;
Quinine
;
Rabbits*
;
Rats
;
Testosterone
;
Tetracycline
;
Typhoid Fever
;
Y Chromosome
2.A Case of Cyanide Poisoning Caused by Acrylonitrile Inhalation.
Yong Su LIM ; Hyuk Jun YANG ; Keun LEE
Journal of the Korean Society of Emergency Medicine 1999;10(1):116-121
Acrylonitrile is most commonly used aliphatic nitrile compounds characterized by the structural formula R-C=N and used mossy to make acrylic fibers, plastics, synthetic rubber, and wall coverings. In recent, because of its extensive usage and the rapid expansion of the chemical industry, many poisonings have been reported and many studies on its health effects have been performed. Acute toxicity resembles cyanide poisoning and results mainly in effects on the nervous system. High exposure also can cause temporary damage to red blood cells and the liver and can cause lead to death. Because long-term occupational exposure to the acrylonitrile has been with cancer in humans, the U.S EPA classifies acrylonitrile as probable carcinogen. For this reason, The federal government has developed regulations and advisories to protect individuals firm the potential health effects of acylonitrile in the environment, but there are few studies, case reports and regulations of the government in our country. We experienced acute poisoning caused by acrylonitrile inhalation that occurred in an industrial accident. So, we report this case with literature reveiw.
Accidents, Occupational
;
Acrylonitrile*
;
Chemical Industry
;
Elastomers
;
Erythrocytes
;
Federal Government
;
Humans
;
Inhalation*
;
Liver
;
Nervous System
;
Occupational Exposure
;
Plastics
;
Poisoning*
;
Social Control, Formal
4.Expression of Insulin-like Growth Factor I (IGF-I) and Its Binding Proteins in Rat Tissues.
Jin Nyoung PARK ; Su Yong LEE ; Jeh Hoon SHIN ; Hang LEE ; Young Ik LEE
Journal of Korean Society of Pediatric Endocrinology 1999;4(1):40-53
covered with liguid nitrozen and pulverized with a pestle. To the powered tissue 5ml of 3.3M formic acid/0.5% Tween 20 was added and centrifuged at 40,000*g for 10 min. An aliquot of supernate was put into C18 sepak minicolumn to eliminates IGF-BPs. Measurement of IGF-I in rat tissues was done by RIA with anti-hIGF-I antibody and hIGF-I(PSIII) standard which was prepared by Drs. L. E. Underwood and J. J. Van Wyk UNC at Chapel Hill, NC, USA and distributed through the National Hormone and Pituitary Distribution Program. Distribution of IGF-I in rat tissue was seen by SDS-PAGE and ligand blotting method. A cDNA library in lambda gt11 of rat liver was used to isolate the cDNA of IGF-I. Phage containing inserts encoding rat IGF-I were identified by hybridization with biotin labeled synthesized oligomer which was the sequence from 1 to 8 aminoacids of known rat IGF-I. The EcoRI inserts were subcloned into PBluescript SK. The nucleotide sequence of both strands was determined by the dideoxy chain termination method. RESULTS: 1)IGF-BPs in tissue extract which could compete with antibody for IGF-I in measureing the IGF-I were eluted at 50Kdalton molecular weight marker using Protein-pak 300SW column. Using C18-sepak minicolumn, IGF-BPs were completely eliminated from tissue extract as much as possible, using Protein-pak 300SW column. 2)The amount of IGF-I in tissues was as folows: liver 575+/-41.6ng/g, lung 552.0+/-40.8ng/g. kidney 503+/-30.8ng/g, heart 449.0+/-30.4ng/g, testis 225+/-18.8ng/g, spleen 146+/-26.4ng/g, muscle 92+/-7.6ng/g and brain 49.0+/-5.8ng/g. The amount of IGF-I in blood was 1403+/-60.8ng/ml. 3)Banding patterns of IGF-BPs in rat tissues extract were obtained using ligand blotting. IGF-BP3 bands at 50 Kdalton molecular weight marker were strongly shown in testis, heart, and lung extracts but not in brain and muscle. IGF-BP1 and 2 band at 30Kdalton molecular weight marker was strongly shown in liver, kidney, spleen, testis, heart and lung. IGF-BP4 band at 21 Kdalton molecular weight marker was weakly shown only in spleen and muscle. 4) The nucleotide sequence of cloned cDNA of rat IGF-I is as follows. 5 10 15 5'----- CC CTT TGC GGG GCT GAG CTG GTG GAC GCT CTT CAG TTC GTG TGT 20 25 30 -GGA CCA AGG GGC TTT TAC TTC AAC AAG CCC ACA GGC TAT GGC- 35 40 45 -TCC AGC ATT CGG AGG GCA CCA CAG ACG GGC ATT GTG GAT GAG------3 CONCLUSION: This study suggests that tissue extraction method for IGF-I from tissues and elimination of IGF-BPs using C18 sepak minicolumn is suitable for measuring in large numbers of samples. Expression of IGF-I and IGF-BPs in multiple tissues suggests some phsiologic function at each tissue level. Subcloning of cDNA of exon 3 and 4 of IGF-I was useful for studying regulation of IGF-IA and IB mRNA in rat tissue.
Animals
;
Bacteriophages
;
Base Sequence
;
Biotin
;
Brain
;
Carrier Proteins*
;
Clone Cells
;
DNA, Complementary
;
Electrophoresis, Polyacrylamide Gel
;
Exons
;
Gene Library
;
Heart
;
Insulin-Like Growth Factor I*
;
Kidney
;
Liver
;
Lung
;
Molecular Weight
;
Polysorbates
;
Rats*
;
RNA, Messenger
;
Spleen
;
Testis
5.A Comparison of Short-Term Outcomes between Laparoscopic and Open Liver Resection in Elderly Patients
Su Yong LEE ; Dong-Shik LEE ; Sung Su YUN ; Chan Woo CHO
Journal of Minimally Invasive Surgery 2020;23(4):179-185
Purpose:
The aim of this study was to compare the short-term outcomes between laparoscopic liver resection (LLR) and open liver resection (OLR) in elderly patients with hepatic tumors.
Methods:
From January 2013 to December 2019, a retrospective study was conducted for a total of 143 patients with over 70 years of age, who underwent liver resection for hepatic tumors. Forty-five patients who received biliary reconstruction at the same time were excluded. According to surgical approaches, 98 patients were classified into LLR and OLR groups. All postoperative complications were classified according to the Clavien-Dindo grading system and the Comprehensive Complication Index (CCI).
Results:
Incidence of the postoperative complications was not statistically different between LLR and OLR groups. The CCI was significantly lower in the LLR group, with a median of 8.556, and a median of 19.698 in the OLR group (p=0.042). The length of hospital stay in the LLR group was significantly shorter than in the OLR group (p=0.008).
Conclusion
LLR is safe and feasible as a treatment for hepatic tumor in elderly patients with potentially less postoperative complications compared to OLR.
6.Effects of Propofol Administration on Cardiovascular Changes of Tracheal Intubation.
Su Mi KIM ; Guie Yong LEE ; Choon Hi LEE
Korean Journal of Anesthesiology 1992;25(5):906-915
A new intravenous anesthetic agent, propofol reduces arterial blool pressure and reduces cardiovascular changes of tracheal intubation. The purpose of this study is to evaluate the effects of administration of thiopental 5 mg/kg and propofol 2.5 mg/kg on cardiovascular changes of tracheal intubation. Systolic arterial presure, diastolic arterial pressure, mean arterial pressure, heart rate and rate-pressure product were determined in healthy patients seheduled for tracehal intubation for general anesthesia before induction, after induction, 1, 3, and 5 minute after tracheal intubation. 1) After induction of anesthesia, above cardiovascular measurements except heart rate decreased significantly in both groups, but more profoundly in the propofol group. Heart rate did not change significantly in both groups. 2) Systolic arterial pressure, diastolic arterial pressure and mean arterial pressure increased significantly in the thiopental group after tracheal intubation, but decreased significantly in the thiopental group after tracehal intubation, but decreased significantly in the propofol group. After tracheal intubation, heart rate and rate-pressure product increased significantly in both groups, but the propofol group returned to the control value faster than the thiopental groups. In conclusion, in healthy adult patients, rise in the arterial blood pressure and heart rate after tracheal intubation decreased significantly in the propofol group compared with the thiopental group.
Adult
;
Anesthesia
;
Anesthesia, General
;
Arterial Pressure
;
Heart Rate
;
Humans
;
Intubation*
;
Propofol*
;
Thiopental
7.Post - Exercise Glycogen Supercompensation in Liver and Muscle after Glucose Ingestion in Rats.
Hae Hun JEUNG ; Jong Chul AHN ; Dong Chul LEE ; Su Yong PARK ; Suck Kang LEE
The Journal of the Korean Orthopaedic Association 1998;33(3):892-902
The muscle glycogen is an important energy source for muscle contraction especially in prolonged exercise. One of the important factors for improvement of physical performance in athletes is the storage of extra-amount of glycogen (supercompensation) in liver and muscles. During 120 minutes treadmill exercise (intensity of exercise was approximatly 80% VO2max), the glycogen concentration was significantly decreased to 36% in liver and 46% in muscles after 60 minutes exercise. At 90 and 120 minutes of exercise, the level of glycogen concentration of liver and muscles statistically were not different from the levels of the 60 minutes exercise. The repletions of glycogen in the liver and muscles in overnight fasted control(C) and 120 minutes treadmill exercise(E) groups during l80minutes after glucose ingestion were investigatect. ln the liver, the concentration of glycogen in C and E groups were markdly increased till 120 minutes after zlucose ingestion, hut the levels of concentration at 180 minutes were decreased comparing to the levels of 120 minutes in both groups. In the muscles, the repletion of glycogen at 60, 120 and 180 minutes of C and E groups were significantly increased comparing to 0 minute of respective groups in the soleus and plantaris muscles. In soleus(SOL), the repletion of glycogen in all of the E groups was significantly higher than that of the respective C groups. However, the repletion of glycogen in all of the E groups of plantaris was revealed higher tendency comparing to respective C groups. Mean repletion rates of glycogen in liver and muscles after glucose ingestion were highest during the first 60 minutes in all groups and the rates of E groups were 2-3 times than those of respective C groups. These results suggest that the glycogen supercompensation in the muscle be provided with decrement of glycogen concentration by exercise, increment of glucose uptake by muscuiar contraction itself and increased insuJin level, and the activation of glycogen synthetase by insulin.
Animals
;
Athletes
;
Eating*
;
Glucose*
;
Glycogen Synthase
;
Glycogen*
;
Humans
;
Insulin
;
Liver*
;
Muscle Contraction
;
Muscles
;
Rats*
8.A Rare Case of Bilateral Frontal Linear Scleroderma (En Coup de Sabre)
Joo Ran HONG ; Ji Su LEE ; Yang Won LEE ; Yong Beom CHOE ; Kyu Joong AHN
Korean Journal of Dermatology 2019;57(6):346-347
No abstract available.
Scleroderma, Localized
9.The effect of aprotinin for hemostasis in open heart surgery.
Nin Su HONG ; Kyung Tai CHA ; Wook Su AHN ; Yong HUR ; Byung Yul KIM ; Jeong Ho LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(10):749-752
No abstract available.
Aprotinin*
;
Heart*
;
Hemostasis*
;
Thoracic Surgery*
10.Considerations in relationship of open heart surgery and thyroid hormone changes.
Kyoung Tae CHA ; Min Su HONG ; Yong HUR ; Wook Su AHN ; Byung Yul KIM ; Jung Ho LEE ; Jin Hee HYUN
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(10):743-748
No abstract available.
Heart*
;
Thoracic Surgery*
;
Thyroid Gland*