PURPOSE: Platinum coordination complex (cisplatin) has been currently used as one of the most effective compound in the treatment of various solid tumors. However, its use has been limited by severe side effects such as renal toxicity. Our platinum-based drug discovery program has been aimed at developing drugs capable of diminishing toxicity and selective cytotoxicity. MATERIALS AND METHODS: A new series of highly water soluble platinum (II) complexes Pt (II) [1,3-Bis (phenylthio) propane) (trans-l-1,2-diaminocyclohexane) (PC-1) and Pt (II) [1,3-Bis-(phenylthio) (propane)]-1,2-diaminocyclohexane (PC-2) were synthesized and characterized by their elemental analysis and by various spectroscopic techniques [infrared (.IR), ""C-nuclear magnetic resonance (NMR)]. In vitro antitumor activity and nephrotoxi -cities of new Pt (II) complexes were tested against MKN-45 human gastric cancer cell- lines and normal kidney cells using colorimetric MTT[3-(4,5-dimethyl thiazol-2-yl)-2,5- diphenyl tetrazolium bromide] assay for cell survival and proliferation. RESULTS: PC-1 showed activity against MKN-45/P and MKN-45/CDDP human gastric adenocarcinoma cells, and the antitumor activity of this compound was comparable or superior to that of PC-2 and cisplatin. The nephrotoxicity of PC-1 and PC-2 were found quite less than that of cisplatin using MTT, [H] thymidine uptake and glucose consumption tests in rabbit proximal tubule cells, human kidney cortical cells and human renal cortical tissues. CONCLUSION: Based on these results, this novel platinum (II) complex compound (PC-1) represent a valuable lead in the development of a new anticancer chemotherapeutic agent capable of improving antitumor activity and low nephrotoxicity.
Adenocarcinoma ; Cell Survival ; Cisplatin ; Drug Discovery ; Glucose ; Humans* ; Kidney* ; Platinum ; Stomach Neoplasms* ; Thymidine

The multistage maximal exercise test was performed to 135 cases with various heart disease and 207 control group between jan. 1980 and Dec. 1980 in KoreaGeneral Hospital. The change of heart rate, blood pressure and ST segment in various heart disease were compared with those in control group. The results were followings; 1. There were 130 male and 77 female of cases with control group, whose mean age were 50 years old. 2. General check up was the most common underlying disease of control group(67 patients) and the others were gastritis (28), neurosis (24), diabets mellitus (17), hepatitis (4) and peptic ulcer (4) frequency. 3. Change of heart rate, blood pressure and ST segment in control group during GXT were 89~154, 119/80~157/88 mmHg and 0.6~2 mm. 4. There were 81 male and 51 female of cases with various heart disease group, whose mean age were 50 years old. 5. Atherosclerotic heart disease was the most common underlying disease of various heart disease group (49 patients) and the others were hypertension (34), hypertensive cardiovascular disease (22), labile hypertension (14), angina (7), arrythmia (6) and others (3) in frequency. 6. Change of heart rate, blood pressure and ST segment in various heart disease group during GXT were 85~148, 140/93~178/102 mmHg and -0.7~1.3mm. ST segment in atherosclerotic heart disease, hypertension, hypertensive cardiovascular disease, valvular heart disease and myocardial infarction were significantly depressed(p<0.05) compared with ST segment in control group.
Arrhythmias, Cardiac ; Blood Pressure ; Cardiovascular Diseases ; Exercise Test* ; Female ; Gastritis ; Heart Diseases* ; Heart Rate ; Heart Valve Diseases ; Heart* ; Hepatitis ; Humans ; Hypertension ; Male ; Middle Aged ; Myocardial Infarction ; Peptic Ulcer

No abstract available.
Humans ; Pneumoconiosis*

We inspected reliability of A-constant of AMO SI-30NB by comparing target diopter and actual postoperative refractive status. Group 1 comprised 191 eyes which were implanted AMO PhacoFlex SI-30NB with corneal incision. Group 2 comprised 45 eyes implanted Pharmacia 812C with scleral incisions. Group 3 comprised 17 eyes implanted AMO OgaciFlex SI-30NB with corneal incision. Refraction was performed on post operative day 1, day 5, day 14, 1 month, and 3 month. It revealed hyperopic shift of 0.31 to 0.40 diopter compared to the target diopters in both Group 1 and Group 3 and no statistical difference was found between two groups(p value>0.05). On the other hand, Group 2 were statistically significant(p value<0.01). We attempted mathematical modelling of this phenomenon and the cause of hyperopylene haptics, structural weakness of haptic-optic junction, and the structure of SI-30NB itself.
Hand ; Models, Theoretical

BACKGROUND: Leukocytes, both polymorphonuclear leukocytes(PMNL) and monocytes/macrophages have been implicated in the pathogenesis of the cerebral ischemia and stroke. Neutrophils accumulate in post-hypoxic-ischemic neonatal rat brain prior to the evolution of necrosis and neutrophil depletion attenuates hypoxic-ischemic brain injury. However, the mechanisms leading to post-hypoxic-ischemic neutrophil accumulation are unknown yet. We hypothesized that Intercellular Adhesion Molecule-1 might mediate post-hypoxic-ischemic injury in the immature brain; thus, we evaluated ICAM-1 gene expression in post-hypoxic-ischemic neonatal(postnatal day 7) rat brain. METHODS: Neonatal rats(n=36) underwent right carotid ligation followed by exposure in 8% O2 for 2.5 hours; this procedure typically produces ipsilateral striatal, hippocampal and cortical infarction. Control groups are included by carotid ligation alone, hypoxia alone, and neither hypoxia nor ligation. For RNA extraction, rats were killed 0, 1, 2, 4, 8, 12, 24 and 48 h post- hypoxia-ischemia and RT-PCR was carried out. RESULTS: ICAM-1 mRNA was barely detected in the controls including normal and sham operated animals. In the cortex, striatum and hippocampus, ICAM-1 mRNA was significantly induced in the ipsilateral(right) side compared to the contralateral(left) side just after hypoxia-ischemia. The elevated ICAM-1 mRNA gradually reached a peak at 4 or 8 h and then decreased to an almost basal level by 24 to 48 h. In contrast, the less pronounced contralateral(left-sided) ICAM-1 mRNA expression appeared to peak earlier, within 2 h post-hypoxia-ischemia. CONCLUSION: The temporal profiles of post-hypoxic-ischemic ICAM-1 mRNA expression are consistent with a role in post-hypoxic-ischemic neutrophil recruitment and in the evolution of subsequent brain injury.
Animals ; Anoxia ; Brain Injuries* ; Brain Ischemia ; Brain* ; Gene Expression ; Hippocampus ; Infarction ; Intercellular Adhesion Molecule-1* ; Leukocytes ; Ligation ; Necrosis ; Neutrophil Infiltration ; Neutrophils ; Rats* ; RNA ; RNA, Messenger* ; Stroke

PURPOSE: To describe the early experience of analyzing variations and time trends in bladder volume of the rectal cancer patients who received bladder ultrasound scan. MATERIALS AND METHODS: We identified 20 consecutive rectal cancer patients who received whole pelvic radiotherapy (RT) and bladder ultrasound scan between February and April 2012. Before simulation and during the entire course of treatment, patients were scanned with portable automated ultrasonic bladder scanner, 5 times consecutively, and the median value was reported. Then a radiation oncologist contoured the bladder inner wall shown on simulation computed tomography (CT) and calculated its volume. RESULTS: Before simulation, the median bladder volume measured using simulation CT and bladder ultrasound scan was 427 mL (range, 74 to 1,172 mL) and 417 mL (range, 147 to 1,245 mL), respectively. There was strong linear correlation (R = 0.93, p < 0.001) between the two results. During the course of treatment, there were wide variations in the bladder volume and every time, measurements were below the baseline with statistical significance (12/16). At 6 weeks after RT, the median volume was reduced by 59.3% to 175 mL. Compared to the baseline, bladder volume was reduced by 38% or 161 mL on average every week for 6 weeks. CONCLUSION: To our knowledge, this study is the first to prove that there are bladder volume variations and a reduction in bladder volume in rectal cancer patients. Moreover, our results will serve as the basis for implementation of bladder training to patients receiving RT with full bladder.
Humans ; Observer Variation ; Rectal Neoplasms ; Ultrasonics ; Urinary Bladder

Holt-Oram Syndrome is an autosomal dominant disorder characterized by the association of upper-limb abnormalities and congenital heart disease. A woman with no family history of genetic disease underwent antenatal sonography at 27 weeks' menstrual age to screen for fetal anomalies. Ultrasonography revealed abnormalities in the upper limbs. The limb abnormalities included abscence of bilateral thumbs and radius: the left humus was short. Pregnancy termination was performed. The postnatal chromosomal analysis revealed a normal 46XX karyotype and the autopsy finding confirmed the Holt-Oram syndrome. We report a case of Holt-Oram Syndrome in fetus with unaffected parents with brief of the literatures.
Autopsy ; Extremities ; Female ; Fetus ; Heart Defects, Congenital ; Humans ; Karyotype ; Parents* ; Pregnancy ; Radius ; Soil ; Thumb ; Ultrasonography* ; Upper Extremity

BACKGROUND: The clinical efficacy of oral isotretinoin in the treatment of severe acne is well established but there is no published data about the recurrence rate and the optimum dose for lowest recurrence in Korean patients. OBJECTIVE: The objective of this study was to determine the recurrence rate after one course of isotretinoin in oriental cases. METHODS: Sixty eight cases were available which fulfilled the inclusion criteria ; clearing af- l ter one course more than 10 weeks and at least two year follow-up thereafter. Isotretinoin was used with oral dosage 0.3-1 mg/kg/day (0.6±0.1) with duration from 10 to 46 weeks (19.7±6.2). RESULTS: Overall, 78% of patients had relapsed with most requiring topical antibiotic therapy only. In patients receiving more than 120 mg/kg, the percentage without recurrence was 75 % which was significantly higher (p<0.001) in comparison with only 15 % among patients receiving less than 120 mg/kg. Doses between 100 and 120 mg/kg were not as effective as those ones with more than 120 mg/kg for preventing recurrence. CONCLUSION: The results indicate that moderate doses of isotretinoin are well tolerated and pro-duce excellent clearing. However, in order to minimize recurrence rate, the optimum dose may be at least over 120 mg/kg of the cumulative dose which means more than 6 months of treatment in most of the Korean patients with acne.
Acne Vulgaris* ; Follow-Up Studies ; Humans ; Isotretinoin* ; Recurrence*

Subcutaneous fat necrosis of the newborn is an uncommon disorder characterized by firm b-cutaneous plaques and nodules usually appearing shortly after birth. It runs a relatively be, n course and may completely resolve in a few months without any recurrence. We report a case of subcutaneous fat necrosis in a 15 day-old male suffering from severe p inatal asphyxia and hypoxic cardiomyopathy, who presented with indurated subcutane s nodules and plaques on the both shoulders and the back. Histologically the subcutaneous fat showed focal necrosis with needle-shaped clefts, lymphohistiocytic infiltration and foreign body reactions consistent with subcutaneous fat necrosis of the newborn. In our patient, compromised cardiac output due to cardiomyopathy might have aggravated hypoxic condition and it could be speculated that cardiomyopathy-induced systemic hypoxia gave rise to hypothermia of the skin as a result of peripheral vasoconstriction. This report presents a causal relationship of cardiomyopathy and subcutaneous fat necrosis of the newborn.
Anoxia ; Asphyxia ; Cardiac Output ; Cardiomyopathies* ; Foreign Bodies ; Humans ; Hypothermia ; Infant, Newborn* ; Male ; Necrosis* ; Parturition ; Recurrence ; Shoulder ; Skin ; Subcutaneous Fat* ; Vasoconstriction

A 57-year-old Korean man with malignant fibrous histiocytoma (MFH) on the leg is presented. Histopathologic examination was consistent with a pleomorphic -storiform subtype of MFH with highly pleomorphic cellular features and frequent mitosis. According to recent evidences, MFH might be a heterogenous group of poorly differentiated tumors rather than a distinct entity. Our case was only positive to CD68 and vimentin immunohistochemically.
Histiocytoma, Malignant Fibrous* ; Humans ; Leg ; Middle Aged ; Mitosis ; Vimentin