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Kim JT, Kim MS, Bae MK, Song HS, Ahn MY, Kim YJ, Lee SJ, Kim KW. Cloning and characterization of tissue inhibitor of metalloproteinase-3 (TIMP-3) from shark, Scyliorhinus torazame. BIOCHIMICA ET BIOPHYSICA ACTA 2001; 1517:311-5. [PMID: 11342115 DOI: 10.1016/s0167-4781(00)00255-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We cloned the full-length cDNA encoding TIMP-3 from the cartilage of cloudy dogfish, Scyliorhinus torazame. The entire open reading frame was composed of 645 nucleotides and 214 residues including 12 conserved cysteines and asparagine-184, a putative site for N-linked sugars. It showed about 72% identity to those of other species based on the deduced amino acid sequence. The mRNA of shark TIMP-3 were expressed abundantly in brain and cartilage tissues. To investigate the roles of shark TIMP-3, an expression vector was constructed and transfected into HT1080 human fibrosarcoma cells. Overexpression of shark TIMP-3 reduced the activity of MMP-2 in gelatin zymography. Through human Alu PCR based CAM assay, we also confirmed that shark TIMP-3 transfected HT1080 cells had less intravasation effects.
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Giles FJ, Shan J, Advani SH, Akan H, Aydogdu I, Aziz Z, Azim HA, Bapsy PP, Buyukkececi F, Chaimongkol B, Chen PM, Cheong SK, Ferhanoglu B, Hamza R, Khalid HM, Intragumtornchai T, Kim SW, Kim SY, Koc H, Kumar L, Kumar R, Lei KI, Lekhakula A, Muthalib A, Patel M, Poovalingam VP, Prayoonwiwat W, Rana F, Reksodiputro AH, Ruff P, Sagar TG, Schwarer AP, Song HS, Suh CW, Suharti C, Supindiman I, Tee GY, Thamprasit T, Villalon AH, Wickham NR, Wong JE, Yalcin A, Jootar S. A prospective randomized study of Chop versus Chop plus alpha-2B interferon in patients with intermediate and high grade non-Hodgkin's lymphoma: the International Oncology Study Group NHL1 Study . Leuk Lymphoma 2000; 40:95-103. [PMID: 11426633 DOI: 10.3109/10428190009054885] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
UNLABELLED The addition of a brief alpha interferon regimen to each CHOP induction cycle, plus one year of alpha interferon thrice weekly maintenance therapy, has no early effect on response rates or survival in patients with Intermediate or High grade cell NHL. BACKGROUND The CHOP (Cyclophosphamide, Adriamycin. Vincristine, Prednisone) regimen is the most widely used first-line therapy for patients with Intermediate or High Grade (IG/HG) non-Hodgkin's lymphoma (NHL). Alpha 2b interferon (INF) enhances response rates and improves survival in low-grade NHL. The International Oncology Study Group (IOSG) conducted a prospective randomized study comparing CHOP alone or combined with INF in patients with IG/HG-NHL. The primary study aim was to compare the objective response rates in these patient cohorts. PATIENTS AND METHODS Patients with a confirmed diagnosis of measurable NHL of International Working Formulation (IWF) groups D to H histology were randomized to receive CHOP alone or CHOP with 5Mu INF s.c. for 5 days on days 22 to 26 of each 28 day cycle with INF 5 million units (Mu) given three times per week subcutaneously for 52 weeks in those patients who responded to CHOP plus INF. RESULTS The overall response rates were equivalent in both groups: CHOP alone (214 patients) 81% (complete 55%, partial 26%); CHOP plus INF (221 patients) 80% (complete 54%, partial 26%). At 36 months, the actuarial survival rate was equivalent in both groups. CONCLUSIONS There is no apparent early advantage in terms of response or survival conferred by adding the study INF regimen to CHOP therapy for patients with IG/HG-NHL.
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Choi HS, Song HS, Ukeda H, Sawamura M. Radical-scavenging activities of citrus essential oils and their components: detection using 1,1-diphenyl-2-picrylhydrazyl. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2000; 48:4156-4161. [PMID: 10995330 DOI: 10.1021/jf000227d] [Citation(s) in RCA: 202] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Thirty-four kinds of citrus essential oils and their components were investigated for radical-scavenging activities by the HPLC method using 1,1-diphenyl-2-picrylhydrazyl (DPPH). To examine the oils' relative radical-scavenging activities compared with that of a standard antioxidant, Trolox was employed. All of the essential oils were found to have scavenging effects on DPPH in the range of 17. 7-64.0%. The radical-scavenging activities of 31 kinds of citrus essential oils were comparable with or stronger than that of Trolox (p < 0.05). The oils of Ichang lemon (64.0%, 172.2 mg of Trolox equiv/mL), Tahiti lime (63.2%, 170.2 mg of Trolox equiv/mL), and Eureka lemon (61.8%, 166.2 mg of Trolox equiv/mL) were stronger radical scavengers than other citrus oils. Citrus volatile components such as geraniol (87.7%, 235.9 mg of Trolox equiv/mL), terpinolene (87.4%, 235.2 mg of Trolox equiv/mL), and gamma-terpinene (84.7%, 227.9 mg of Trolox equiv/mL) showed marked scavenging activities on DPPH (p < 0.05).
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Cho HJ, Brotherton JE, Song HS, Widholm JM. Increasing tryptophan synthesis in a forage legume Astragalus sinicus by expressing the tobacco feedback-insensitive anthranilate synthase (ASA2) gene. PLANT PHYSIOLOGY 2000; 123:1069-76. [PMID: 10889256 PMCID: PMC59070 DOI: 10.1104/pp.123.3.1069] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/1999] [Accepted: 03/10/2000] [Indexed: 05/18/2023]
Abstract
A cDNA clone that encodes a feedback-insensitive anthranilate synthase (AS), ASA2, isolated from a 5-methyl-tryptophan (Trp) (5MT)-resistant tobacco cell line under the control of the constitutive cauliflower mosaic virus 35S promoter, was introduced into the forage legume Astragalus sinicus by Agrobacterium rhizogenes with kanamycin selection. The 35S-ASA2 gene was expressed constitutively as demonstrated by northern-blot hybridization analyses and the presence of feedback-insensitive AS. Hairy root lines transformed with 35S-ASA2 grew in concentrations of up to 100 microM 5MT, whereas the controls were completely inhibited by 15 microM 5MT. Expression of the feedback-insensitive ASA2 resulted in a 1.3- to 5.5-fold increase in free Trp. Kinetic studies of the AS activity demonstrate the Trp feedback alterations and indicate that the ASA2 alpha-subunit can interact with the native A. sinicus beta-subunit to form an active enzyme. The ASA2 transcript and high free Trp were also detected in the leaves, stems, and roots of plants regenerated from the transformed hairy roots. Thus, we show for the first time that ASA2 can be used to transform plants of a different species to increase the levels of the essential amino acid Trp and impart 5MT resistance.
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Chuang LH, Song HS, Lee SC, Lai CC, Ku WC. Endogenous Klebsiella pneumoniae endophthalmitis associated with prostate abscess: case report. CHANG GUNG MEDICAL JOURNAL 2000; 23:240-5. [PMID: 10902231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
A young alcoholic and heavy smoker was admitted because of Klebsiella pneumoniae bacteremia. The abdominal and pelvic computed tomography with enhancement revealed an abscess in the right prostate. He experienced blurred vision of his left eye on the third day during admission. Initial ocular examination revealed mild reaction in the anterior chamber and vitreous as well as multiple Roth's spots in the retina. The administration of empirical antibiotics including cefazolin and gentamicin intravenously was changed to ceftriaxone and amikacin after ophthalmologic consultation. After parenteral antibiotics for 3 weeks, the systemic condition was controlled, and the vision remained stable. During the past decades, many cases of endogenous Klebsiella pneumoniae endophthalmitis associated with liver abscess were reported in Taiwan. However, documented reports of this condition associated with a prostate abscess are rare. This case, classified as posterior focal endogenous endophthalmitis, had good prognosis under appropriate antibiotic treatment. Early diagnosis and prompt therapy are important for control of sepsis and restoration of vision.
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Abstract
Emergency medicine has developed rapidly in South Korea in the past decade, giving Korea one of the most advanced systems of emergency medical care in Asia. This article reviews the overall health care system and medical climate in Korea, as well as the great progress made in establishing emergency medicine as a specialty. It also describes the many improvements implemented in academic emergency medicine, emergency patient care, and emergency medicine management systems. Although the current economic crisis offers new challenges, much optimism remains about the future of this new Korean specialty.
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Song HS, Brotherton JE, Gonzales RA, Widholm JM. Tissue culture-specific expression of a naturally occurring tobacco feedback-insensitive anthranilate synthase. PLANT PHYSIOLOGY 1998; 117:533-43. [PMID: 9625706 PMCID: PMC34973 DOI: 10.1104/pp.117.2.533] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/1997] [Accepted: 03/03/1998] [Indexed: 05/18/2023]
Abstract
A cDNA and corresponding promoter region for a naturally occurring, feedback-insensitive anthranilate synthase (AS) alpha-subunit gene, ASA2, has been isolated from an unselected, but 5-methyl-tryptophan-resistant (5MTr), tobacco (Nicotiana tabacum) cell line (AB15-12-1). The ASA2 cDNA contains a putative transit peptide sequence, and Southern hybridization shows that more than one closely related sequence is present in the tobacco genome. The ASA2 cDNA complemented a trpE nonsense mutant Escherichia coli strain, allowing growth on 300 microm 5MT-containing minimal medium without tryptophan, and cell extracts contained feedback-insensitive AS activity. The 5MTr was lost when the E. coli strain was transformed with an ASA2 site-directed mutant (phenylalanine-107-arginine-108 --> serine-107-glutamine-108). Identical nucleotide sequences encoding the phenylalanine-107-arginine-108 region have been found in polymerase chain reaction-amplified 326-bp ASA2 genomic fragments of wild-type (5-methyl-tryptophan-sensitive [5MTs]) tobacco and a progenitor species. High-level ASA2 transcriptional expression was detected only in 5MTr-cultured cells, not in 5MTs cells or in plants. Promoter studies indicate that tissue specificity of ASA2 is controlled by the promoter region between -2252 and -607. Since the ASA2 promoter sequences are not substantially different in the 5MTr and 5MTs lines, the increased levels of ASA2 mRNA in the 5MTr lines are most likely due to changes in a regulatory gene affecting ASA2 expression.
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Choe H, Kim JS, Ko SH, Kim DC, Han YJ, Song HS. Epidural verapamil reduces analgesic consumption after lower abdominal surgery. Anesth Analg 1998; 86:786-90. [PMID: 9539602 DOI: 10.1097/00000539-199804000-00020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
UNLABELLED In this double-blind study, we administered lumbar epidural bupivacaine or bupivacaine plus verapamil to investigate the possible role of the calcium channel blocker, verapamil, in postoperative pain. One hundred patients (ASA physical class I or II) scheduled for lower abdominal surgery were randomly assigned to one of four groups. Group 1 received 10 mL of 0.5% epidural bupivacaine injected 15 min before incision, followed by 10 mL of epidural normal saline 30 min after incision. Group 2 received 10 mL of epidural normal saline injected before incision, followed by 10 mL of 0.5% epidural bupivacaine 30 min after incision. Group 3 received 10 mL of 0.5% epidural bupivacaine plus 5 mg of verapamil injected before incision, followed by 10 mL of epidural normal saline 30 min after incision. Group 4 received the same drugs as Group 3, in the reverse order. Pain and mood numeric rating scores, sedation scores, Prince Henry scores, patient-controlled cumulative postoperative analgesic consumption, and the incidence of side effects were assessed 2, 6, 12, 24, and 48 h after the operation in each group. Cumulative postoperative analgesic consumption in Groups 3 and 4 was significantly lower (P < 0.05) than that in Groups 1 and 2 24 and 48 h after surgery. There were no differences in the pain, mood, and sedation scores and the incidence of side effects among the four groups. We conclude that epidural verapamil decreases postoperative pain, possibly by interfering with normal sensory processing and by preventing the establishment of central sensitization. IMPLICATIONS Calcium plays an important role in pain physiology at the spinal cord level. We examined the effect of bupivacaine plus verapamil (calcium channel blocker) and of bupivacaine alone. We demonstrated that the combination, administered epidurally, resulted in less postoperative analgesic consumption than bupivacaine alone.
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MESH Headings
- Abdomen/surgery
- Adult
- Affect/drug effects
- Analgesia, Epidural
- Analgesia, Patient-Controlled
- Analgesics/administration & dosage
- Analgesics/therapeutic use
- Analgesics, Opioid/administration & dosage
- Analgesics, Opioid/adverse effects
- Analgesics, Opioid/therapeutic use
- Analysis of Variance
- Anesthetics, Local/administration & dosage
- Anesthetics, Local/adverse effects
- Bupivacaine/administration & dosage
- Bupivacaine/adverse effects
- Calcium Channel Blockers/administration & dosage
- Calcium Channel Blockers/adverse effects
- Calcium Channel Blockers/therapeutic use
- Chi-Square Distribution
- Consciousness/drug effects
- Double-Blind Method
- Follow-Up Studies
- Humans
- Incidence
- Injections, Epidural
- Middle Aged
- Morphine/administration & dosage
- Morphine/adverse effects
- Morphine/therapeutic use
- Pain, Postoperative/physiopathology
- Pain, Postoperative/prevention & control
- Premedication
- Sensation/drug effects
- Sodium Chloride
- Spinal Cord/drug effects
- Spinal Cord/physiopathology
- Verapamil/administration & dosage
- Verapamil/adverse effects
- Verapamil/therapeutic use
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Ko SH, Kim DC, Han YJ, Song HS. Small-dose fentanyl: optimal time of injection for blunting the circulatory responses to tracheal intubation. Anesth Analg 1998; 86:658-61. [PMID: 9495433 DOI: 10.1097/00000539-199803000-00041] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
UNLABELLED This study was designed to examine the optimal time of injection of a small dose of fentanyl during anesthetic induction to attenuate circulatory responses to laryngoscopy and tracheal intubation. One hundred seventy patients were randomly assigned to one of five groups. In Groups II, III, IV, and V, patients received fentanyl (2 microg/kg) 1, 3, 5, or 10 min before tracheal intubation, respectively. Group I patients did not receive fentanyl and served as the control group. In Groups III and IV, blood pressures were not increased, except diastolic pressure in Group III, significantly postintubation compared with preinduction values; but Groups I, II, and V showed a significant increase (P < 0.05). The 1-min postintubation values of systolic, diastolic, and mean arterial pressure in Groups III and IV were less than those in the control group (P < 0.05). Increases of heart rate in Group IV were less (P < 0.05) than those in the control group, but significant differences were not observed in Groups II, III, and V. The number of patients with tachycardia and dysrhythmia was significantly smaller in Group IV than in the control group (P < 0.05). We conclude that the most effective time to administer fentanyl to protect circulatory responses to laryngoscopy and tracheal intubation is 5 min before tracheal intubation. IMPLICATIONS Fentanyl is often used to reduce the hemodynamic response to tracheal intubation. However, large doses may cause unwanted side effects. Administration of fentanyl at the optimal time reduces the dose required. Our results indicate that optimal injection time of fentanyl for intubation is 5 min before intubation.
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Ko SH, Yu CW, Lee SK, Choe H, Chung MJ, Kwak YG, Chae SW, Song HS. Propofol attenuates ischemia-reperfusion injury in the isolated rat heart. Anesth Analg 1997; 85:719-24. [PMID: 9322445 DOI: 10.1097/00000539-199710000-00002] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
UNLABELLED The purpose of this study was to examine the direct effects of propofol on ischemia-reperfusion injury using an isolated Langendorff rat heart preparation. Hearts were perfused with Krebs-Henseleit (K-H) solution (control); intralipid; or 10, 30, and 100 microM propofol. Hearts were rendered globally ischemic for 25 min, then reperfusion was begun with K-H solution for 30 min. Treatment with 100 microM propofol delayed the onset of contracture during ischemia compared with control or intralipid treatments (6.4 +/- 2.1 vs 4.4 +/- 1.4 or 4.1 +/- 0.7 min, respectively; P < 0.05). During reperfusion, 100 microM propofol increased coronary flow and reduced lactate dehydrogenase release compared with control or intralipid treatments. After 30 min of reperfusion, left ventricular developed pressure (LVDP) returned to 55 and 76 mm Hg in the 30 and 100 microM propofol-treated groups, respectively, whereas LVDP was 39 mm Hg in the control group. The hearts treated with 100 microM propofol showed significantly lower left ventricular end-diastolic pressure compared with the control or intralipid groups 30 min after reperfusion (29 +/- 13 vs 48 +/- 5 or 48 +/- 11 mm Hg, respectively; P < 0.05). In histological evaluation, control and intralipid hearts had increased injury severity scores compared with hearts treated with 100 microM propofol (1.8 +/- 0.9 and 1.7 +/- 0.8 vs 1.0 +/- 0.7, respectively; P < 0.05). In conclusion, we suggest that propofol administered before and during global myocardial ischemia has cardioprotective effects on ischemia-reperfusion injury. IMPLICATIONS It is important to protect the heart from injury by ischemia and reperfusion. The current study demonstrates that in the isolated rat heart, propofol attenuates mechanical, biochemical, and histological changes causes by ischemia and reperfusion.
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Ko SH, Lee SK, Han YJ, Choe H, Kwak YG, Chae SW, Cho KP, Song HS. Blockade of myocardial ATP-sensitive potassium channels by ketamine. Anesthesiology 1997; 87:68-74. [PMID: 9232136 DOI: 10.1097/00000542-199707000-00010] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND The adenosine triphosphate (ATP)-sensitive potassium (KATP) channel underlies the increase in potassium permeability during hypoxia and ischemia. The increased outward potassium current during ischemia may be an endogenous cardioprotective mechanism. This study was designed to determine the effects of ketamine on KATP channel in rat hearts. METHODS Inside-out and cell-attached configurations of patch-clamp techniques and 3 M potassium chloride-filled conventional microelectrodes were used to investigate the effect of ketamine on KATP channel currents in single rat ventricular myocytes and on the action potential duration of rat papillary muscles, respectively. RESULTS Ketamine inhibited KATP channel activity in rat ventricular myocytes in a concentration-dependent manner. In the inside-out patches, the concentration of ketamine for half-maximal inhibition and the Hill coefficient were 62.9 microM and 0.54, respectively. In a concentration-dependent manner, ketamine inhibited pinacidil- and 2,4-dinitrophenol-activated KATP channels in cell-attached patches. The application of ketamine to the intracellular side of membrane patches did not affect the conduction of single-channel currents of KATP channels. Ketamine increased the action potential duration, which was then shortened by pinacidil in a concentration-dependent manner. CONCLUSIONS Ketamine inhibited KATP channel activity in a concentration-dependent manner. These results suggest that ketamine may attenuate the cardioprotective effects of the KATP channel during ischemia and reperfusion in the rat myocardium.
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Choe H, Choi YS, Kim YH, Ko SH, Choi HG, Han YJ, Song HS. Epidural morphine plus ketamine for upper abdominal surgery: improved analgesia from preincisional versus postincisional administration. Anesth Analg 1997; 84:560-3. [PMID: 9052301 DOI: 10.1097/00000539-199703000-00017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Increased postoperative pain may be caused by central nervous system plasticity, which may be related to actions of N-methyl-D-aspartic acid (NMDA) receptors on neurons in the dorsal horn of the spinal cord. Opioids act mainly on presynaptic receptors and reduce neurotransmitter release, while ketamine antagonizes NMDA receptors and prevents wind-up and long-term potentiation. Thus, we postulated that central nervous system sensitization would be prevented more effectively by the preoperative use of these two drugs simultaneously, and the effect of preemptive analgesia would be demonstrated. Ketamine, 60 mg, and morphine, 2 mg, were injected epidurally through an indwelling catheter that was inserted at the T7-8 interspace in 60 ASA physical status class 1-2 patients. The drugs were injected before induction of anesthesia (Group 1; n = 30) or immediately after removal of a surgical specimen (Group 2; n = 30). An additional 2 mg of morphine was injected when the patients complained of resting pain. The analgesic effect was assessed by the time from first analgesic injection to second dose and the number of patients who needed supplemental injections. Complications were also noted. The duration of analgesia was longer (P < 0.01) in Group 1 (31.1 +/- 16.0 h) than in Group 2 (21.1 +/- 12.0 h), and the proportion of patients who needed supplemental injections was decreased (P < 0.05) in Group 1 (56.7%) compared with Group 2 (90.0%). The incidence of adverse effects was not different between the two groups. In conclusion, preoperative administration of morphine and ketamine is more effective in reducing postoperative pain than it is when given during the operation.
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Abstract
In order to get information about changes in the masseter muscle when operations are performed on the mandibular angle area, we classified 70 New Zealand White rabbits into group O (ostectomy) and group D (dissection). In group O we performed unilateral ostectomy of the mandibular angle, while in group D we performed unilateral dissection of the masseter muscle limited to the mandibular angle area. Then we compared morphologic, histologic, and histochemical changes in experimental masseter muscles with those in normal control masseter muscles. We examined 5 rabbits in each group at the following intervals: 1, 2, 4, 6, 8, 12, and 24 weeks. In group D (dissection), there were no remarkable changes at all examinations. In group O (ostectomy), there was a 30 percent decrease in experimental muscle mass compared with control muscle. On examination of muscle fiber types, a decrease in type I fibers and an increase in type IIA and IIB fibers were noticed (p < 0.05). Each experimental muscle fiber became more irregularly and angularly shaped, and mean fiber area also was reduced. Sarcomere lengths of experimental muscle fibers were significantly reduced to 80 percent of control values (p < 0.05) during the first 4 weeks, but after 6 weeks they were lengthened to control values. Collagen and fibrin did not show much difference between experimental and control muscles. All these findings imply that masseter muscle atrophy after ostectomy of the mandibular angle is not due to connective-tissue changes but to individual muscle fiber atrophy accompanied by functional adaptation of sarcomeres and changes in muscle fiber types.
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Park HS, Kim DW, Kim CC, Kim HK, Kim JS, Hwang TJ, Kim HJ, Kim HS, Song HS, Park JW, Ahn HS, Chung TJ, Cho KS, Lee KS, Choi YM. Induction chemotherapy with idarubicin plus N4-behenoyl-1-beta-D-arabinofuranosylcytosine in acute myelogenous leukemia: a newly designed induction regimen--a prospective, cooperative multicenter study. Semin Hematol 1996; 33:24-9. [PMID: 8916313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This report describes the results of induction chemotherapy with idarubicin (IDA) plus N4-behenoyl-1-beta-D-arabinofuranosylcytosine (BH-AC), a newly designed induction regimen, in cases of previously untreated acute myelogenous leukemia (AML). The study was conducted by the Multicenter Clinical Study Group of the Korean Biologic Response Modifier Society (KBRMS). From March 1994 through January 1995, 40 patients were treated. The median age was 30 years (range, 15 months to 65 years), with a distribution according to the French-American-British (FAB) classification of one MO, nine MI, 15 M2, six M3, four M4, and five M5 patients. Remission induction therapy consisted of IDA 12 mg/m2 intravenously (i.v.) over 30 minutes daily on days 1 to 3, in combination with BH-AC 300 mg/m2 over 4 hours daily on days 1 to 7 (in patients aged 41 to 65 years, BH-AC dosage was decreased to 200 mg/m2/d). Complete remission (CR) was achieved in 30 patients (75%), 22 by the first induction therapy and eight by the second induction therapy. Ten patients (25%) failed to respond to therapy, six due to resistant disease and four due to death caused by aplasia. The time to CR was 30 days, the median granulocytopenic period was 19 days, and the thrombocytopenic period was 24 days. All nonhematologic side effects such as nausea, vomiting, mucositis, skin eruption, liver and cardiac dysfunction, and neurotoxicity, were transient and tolerable. These data indicate an efficacy comparable to that of other combinations of IDA (or other anthracyclines) with cytosine arabinoside (Ara-C) for remission induction in AML.
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Ko P, Lee J, Song HS. Color-octet mechanism in gamma +p-->J/ psi +X. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1996; 54:4312-4325. [PMID: 10021111 DOI: 10.1103/physrevd.54.4312] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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See LC, Song HS, Ku WC, Lee JS, Liang YS, Shieh WB. Neglect of childhood strabismus: Keelung Ann-Lo Community ocular survey 1993-1995. CHANGGENG YI XUE ZA ZHI 1996; 19:217-24. [PMID: 8921638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Strabismus is a major cause of amblyopia. Parents not aware of the adverse outcome of untreated strabismus is thought to be a major reason of their affected child not being discovered earlier. An ocular survey was therefore conducted to examine the relative neglect of strabismus by the public, using myopia as a reference eye disorder. Specific objectives included estimating the prevalence of these ocular diseases, comparing the self-reported rate to the test-based rate, and investigating how much parents knew about these ocular diseases. Between 1993 and 1995, 862 elementary students in the first, third, and sixth grade at Keelung Ann-Lo Community were screened. The prevalence of manifest strabismus was 1.62% (95% CI = 1.19% approximately 2.05%). Of those with strabismus, three (21.4%) knew that they had strabismus. Neither the prevalence nor the self-known proportion of strabismus changed substantially with school grade, suggesting that the majority of strabismus afflicted children remain unrecognized during their elementary school years. The amblyopia proportion in those with tropia was 42.9% and reduced to 21.5% after abnormal refractive error was excluded. Of six knowledge statements about each ocular disorder, parents answered 2.13 (SD = 1.40) strabismus statements correctly, which was significantly less than their response on myopia statements (4.32 with SD = 1.24) (p < .0001). Onset age of strabismus was the question answered least correctly, implying that parents are not aware of the timing of treating strabismus. Our findings suggest that childhood strabismus was neglected by the public before the implementation of National Health Insurance (NHI). Should a similar study continued to be conducted in the future, the efficacy of NHI in the early recognition and treatment on childhood strabismus can be evaluated.
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Ko P, Lee J, Song HS. Inclusive S-wave charmonium productions in B decays. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1996; 53:1409-1415. [PMID: 10020131 DOI: 10.1103/physrevd.53.1409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Shim JS, Song HS. Factorization in processes of a graviton scattering off an electron for Z and W production. Int J Clin Exp Med 1996; 53:1005-1008. [PMID: 10020089 DOI: 10.1103/physrevd.53.1005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Song HS, Ku WC, Yeh SF. Clinical application of simultaneous pattern VEP and pattern ERG recording. CHANGGENG YI XUE ZA ZHI 1995; 18:133-9. [PMID: 7641105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Thirteen eyes of optic neuropathy and 13 eyes of maculopathy during Sep. 1990-May 1992 were studied by simultaneous pattern VEP (PVEP) and pattern ERG (PERG) recording. In optic neuropathy, the P100 of PVEP was delayed in 7 eyes (ave. 108.87 msec; normal 94.41 +/- 3.51 msec), absent in 5 eyes, normal in 1 eye. Their PERG showed normal P50 amplitude (either normal or delayed latency) but small or absent N95 in 8 eyes. In maculopathy, the P100 of PVEP was delayed in 2 eyes (ave. 103.59msec), absent in 7 eyes, normal in 4 eyes. However, their PERG showed 12 eyes had small or absent P50. Combined PVEP & PERG test, when compared to PVEP alone, increased the diagnostic value from 57.1% to 100% for optic neuropathy and from 42.9% to 80% for maculopathy in this study. Thus, simultaneous PVEP & PERG recording is highly recommended in evaluation of anterior visual pathway disorders.
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Choi SY, Shim JS, Song HS. Factorization and polarization in linearized gravity. Int J Clin Exp Med 1995; 51:2751-2769. [PMID: 10018747 DOI: 10.1103/physrevd.51.2751] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Yang DB, Song HS, Park CG. Unfavorable results and their resolution in mandibular contouring surgery. Aesthetic Plast Surg 1995; 19:93-102. [PMID: 7900562 DOI: 10.1007/bf00209317] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Since the development of mandibular contouring surgery, there have been many unfavorable results due to technical reasons. Those results include asymmetry, undercorrection, overcorrection, and an incorrect contour line. Over three years the authors have analyzed 19 cases of unfavorable results and found the following: (1) There have been 7 cases of undercorrection, 5 cases of asymmetry, 5 cases of incorrect contour line, and 2 cases of overcorrection. (2) The main technical errors that cause unfavorable results seem to be the simple straight cutting of mandible angles instead of curved cutting using multistaged curved ostectomy. (3) We suggest that the basic way to prevent unfavorable results in mandibular contouring surgery is to contour the mandible, including angle, body, and symphysis, as a whole by way of multistaged curved ostectomy.
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Baek MS, Choi SY, Song HS. Exclusive heavy-meson pair production at large recoil. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1994; 50:4363-4371. [PMID: 10018076 DOI: 10.1103/physrevd.50.4363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lee SK, Hong KH, Choe H, Song HS. Comparison of the effects of the laryngeal mask airway and endotracheal intubation on vocal function. Br J Anaesth 1993; 71:648-50. [PMID: 8251272 DOI: 10.1093/bja/71.5.648] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
We have compared changes in vocal function produced after insertion of a laryngeal mask airway (LMA) with those produced by tracheal intubation in 20 patients. Using acoustic waveform analysis, we computed amplitude variability (AV), pitch variability (PV), harmonics-to-noise ratio (HNR) and additive noise level (ANL) before anaesthesia and at 1, 4, and 24 h after tracheal extubation. There were no significant changes in vocal function after extubation except for HNR ratio (P = 0.046) at 4 h in the LMA group. There were differences in all four variables at 1 h, 4 h, or both, after tracheal extubation compared with baseline in the tracheal tube group. In both groups, all variables were the same as baseline values 24 h after extubation. We observed significant differences in AV (4 h), PV and ANL (1, 4 h) values between the two groups. These observations suggest that the LMA causes less vocal change than tracheal intubation.
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Choi SY, Shim JS, Song HS. Factorization of gravitational Compton scattering amplitude in the linearized version of general relativity. Int J Clin Exp Med 1993; 48:2953-2956. [PMID: 10016548 DOI: 10.1103/physrevd.48.2953] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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