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Choi KH, Choi SM, Nam TS, Lee MC. Astrocytoma in the third ventricle and hypothalamus presenting with parkinsonism. J Korean Neurosurg Soc 2012; 51:144-6. [PMID: 22639710 PMCID: PMC3358600 DOI: 10.3340/jkns.2012.51.3.144] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Revised: 08/31/2011] [Accepted: 03/12/2012] [Indexed: 11/27/2022] Open
Abstract
Parkinsonism secondary to intracranial mass lesions usually results from compression or distortion of the basal ganglia. Secondary parkinsonism due to midbrain infiltration or compression is rare and generally associated with other neurologic signs caused by pyramidal tract and/or cranial nerve involvement. We report a case of 30-year-old woman in whom mild parkinsonism was the major clinical manifestation of an astrocytoma in the anterior third ventricle and hypothalamus. She underwent surgical resection, ventriculoperitoneal shunt and radiation therapy. All symptoms of parkinsonism were completely recovered 3 months after the treatment. Brain tumors can be manifested only by the symptoms of parkinsonism. This case emphasizes the significance of neuroimaging in the evaluation of parkinsonism.
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Choi SM, Cho BH, Choi KH, Nam TS, Kim JT, Park MS, Kim BC, Kim MK, Cho KH. Meningitis caused by Streptococcus suis: case report and review of the literature. J Clin Neurol 2012; 8:79-82. [PMID: 22523518 PMCID: PMC3325437 DOI: 10.3988/jcn.2012.8.1.79] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Revised: 07/30/2010] [Accepted: 07/30/2010] [Indexed: 11/25/2022] Open
Abstract
Background Human infection with Streptococcus suis (S. suis), a zoonotic pathogen, has been reported mainly in pig-rearing and pork-consuming countries. Meningitis is the most-common clinical manifestation and is often associated with deafness and vestibular dysfunction. Case Report A 57-year-old man was referred to the hospital with headaches, fevers, chills, and hearing impairment. Meningitis was confirmed and S. suis was isolated from the cerebrospinal fluid. Spondylodiscitis occurred after 2 weeks of antibiotic treatment, and was successfully treated with a prolonged course of antibiotics for another 4 weeks. His hearing loss was irreversible despite the improvement of other symptoms. Conclusions We report the first human case of S. suis infection in Korea. In patients presenting with meningitis, S. suis should be considered if the characteristic features of prominent and early hearing loss are present.
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Lim SW, Jeon SJ, Choi SS, Choi KH. Synovial chondromatosis in the temporomandibular joint: a case with typical imaging features and pathological findings. Br J Radiol 2011; 84:e213-6. [PMID: 22011825 DOI: 10.1259/bjr/69067316] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Synovial chondromatosis of the temporomandibular joint is a rare benign joint disorder that has been reported in only a few studies. However, we recently encountered a pathologically proven case of this disorder. This case also showed the typical imaging findings on panoramic radiographs and on CT and MR images. Therefore, we report this case and the imaging and pathological findings.
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Kim JT, Park MS, Yoon GJ, Jung HJ, Choi KH, Nam TS, Lee SH, Choi SM, Kim BC, Kim MK, Cho KH. White Matter Hyperintensity as a Factor Associated with Delayed Mood Disorders in Patients with Acute Ischemic Stroke. Eur Neurol 2011; 66:343-9. [DOI: 10.1159/000332585] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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155
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Nam TS, Lee SH, Kim BC, Choi KH, Kim JT, Kim MK, Cho KH, Lee MC. Clinical characteristics and predictive factors of myasthenic crisis after thymectomy. J Clin Neurosci 2011; 18:1185-8. [DOI: 10.1016/j.jocn.2011.01.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Revised: 01/06/2011] [Accepted: 01/07/2011] [Indexed: 10/18/2022]
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156
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Nam TS, Choi KH, Kim MK, Cho KH. Glioblastoma mimicking herpes simplex encephalitis. J Korean Neurosurg Soc 2011; 50:119-22. [PMID: 22053231 DOI: 10.3340/jkns.2011.50.2.119] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Revised: 03/03/2011] [Accepted: 08/08/2011] [Indexed: 11/27/2022] Open
Abstract
We report a case of 70-year-old man with glioblastoma presenting as acute encephalitic illness. The patient exhibited sudden onset of cognitive impairment and headache for 2 days. Initial brain MRI showed left temporal lobe hyperintensity, and cerebrospinal fluid cytology revealed a mild pleocytosis. The patient had initially improved after medical treatment with a presumptive diagnosis of herpes simplex encephalitis (HSE). After 8 months, the patient complained of recurrent seizures. A follow-up brain MRI revealed marked increases in size and surrounding perilesional edema in the left temporal lesion on T2-weighted images and a new contrast-enhancing lesion on gadolinium-enhanced T1-weighted images. Stereotactic brain biopsy revealed a glioblastoma. The atypical encephalitic presentation of glioblastoma should be considered if definitive evidence for the diagnosis of HSE cannot be obtained.
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Park MS, Kim JT, Yoon W, Kim JK, Kim BC, Lee SH, Choi SM, Choi KH, Nam TS, Kim MK, Cho KH. Intra-Arterial Thrombolysis after Full-Dose Intravenous tPA via the "Drip and Ship" Approach in Patients with Acute Ischemic Stroke: Preliminary Report. Chonnam Med J 2011; 47:99-103. [PMID: 22111068 PMCID: PMC3214873 DOI: 10.4068/cmj.2011.47.2.99] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Accepted: 06/02/2011] [Indexed: 11/06/2022] Open
Abstract
According to the "drip and ship" concept, patients who are not responsive to intravenous tissue plasminogen activator (IV-tPA) at a community hospital may be candidates for subsequent intra-arterial (IA) thrombolysis at a comprehensive stroke center. We elucidated the efficacy and safety of combined IV/IA thrombolysis via the drip and ship approach. We retrospectively reviewed patients with acute ischemic stroke who underwent combined IV/IA thrombolysis between March 2006 and June 2009. The patients were divided into two groups (inside hospital IV-tPA vs. outside hospital IV-tPA). We compared the short- and long-term clinical outcome, recanalization rate, intracranial hemorrhage after the procedure, and onset to treatment time between the two groups. A total of 23 patients with inside hospital IV-tPA and 10 patients with outside hospital IV-tPA were included. The mean pre-treatment National Institutes of Health Stroke Scale (NIHSS) scores were 15.8 and 17.5, respectively. Baseline characteristics were not significantly different between the two groups. The NIHSS score at 1 week and favorable outcome rate (modified Rankin Scale ≤2) 3 months after the procedure were not significantly different (p=0.730 and p=0.141, respectively). The rate of recanalization and intracranial hemorrhage were not significantly different (p=0.560 and p=0.730, respectively). The onset to IA thrombolysis time was also not significantly different (222.7 vs. 239.3 minutes, p=0.455). Our results suggest that initiation of IV-tPA in a community hospital with rapid transfer to a comprehensive stroke center for subsequent IA thrombolysis can be a safe and feasible therapeutic option in acute stroke management.
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Kim JE, Choi KH, Kang SJ, Seo EJ, Park CK, Cho BK, Kang H. Angiosarcoma mimicking cutis verticis gyrata. Clin Exp Dermatol 2011; 36:806-8. [PMID: 21507034 DOI: 10.1111/j.1365-2230.2011.04059.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Choi SM, Lee SH, Choi KH, Nam TS, Kim JT, Park MS, Kim BC, Kim MK, Cho KH. Directional Asymmetries of Saccadic Hypometria in Patients with Early Parkinson’s Disease and Unilateral Symptoms. Eur Neurol 2011; 66:170-4. [DOI: 10.1159/000330671] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Accepted: 06/22/2011] [Indexed: 11/19/2022]
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Nam TS, Park MS, Choi KH, Jung HJ, Yoon GJ, Choi SM, Kim BC, Kim MK, Cho KH. Myasthenia gravis aggravated by steroid-induced isolated mediastinal tuberculous lymphadenitis. J Clin Neurol 2010; 6:224-6. [PMID: 21264205 PMCID: PMC3024529 DOI: 10.3988/jcn.2010.6.4.224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Revised: 08/11/2009] [Accepted: 08/11/2009] [Indexed: 11/17/2022] Open
Abstract
Background Myasthenia gravis (MG) is occasionally aggravated by chronic infection, of which there are many kinds. Case Report We report herein the case of a 56-year-old woman with MG aggravated by the activation of isolated mediastinal tuberculous lymphadenitis (MTL) during corticosteroid administration. The possibility of MTL had been disregarded in the differential diagnosis of aggravation of MG weakness, because MTL without pulmonary manifestations is uncommon even in areas where tuberculosis is endemic. Conclusions This case suggests that chronic infections such as tuberculosis should be considered in myasthenic patients with progressive exacerbation if definite evidence for aggravating factors of MG is not obtained.
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Choi KH, Yoo IJ, Lee HS, Lee KH, Lim DC. Fabrication of various carbon nanostructures by using different catalysts. JOURNAL OF THE KOREAN CRYSTAL GROWTH AND CRYSTAL TECHNOLOGY 2010. [DOI: 10.6111/jkcgct.2010.20.3.133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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162
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Kim JT, Park MS, Choi KH, Nam TS, Choi SM, Lee SH, Kim BC, Kim MK, Cho KH. The CBV-ASPECT Score as a Predictor of Fatal Stroke in a Hyperacute State. Eur Neurol 2010; 63:357-63. [DOI: 10.1159/000313303] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2009] [Accepted: 04/06/2010] [Indexed: 11/19/2022]
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Kim S, Zhang S, Choi KH, Reister R, Do C, Baykiz A, Gershenfeld H. An E3 ubiquitin ligase, Really Interesting New Gene (RING) Finger 41, is a candidate gene for anxiety-like behavior and beta-carboline-induced seizures. Biol Psychiatry 2009; 65:425-31. [PMID: 18986647 PMCID: PMC2667267 DOI: 10.1016/j.biopsych.2008.09.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2007] [Revised: 09/05/2008] [Accepted: 09/11/2008] [Indexed: 10/21/2022]
Abstract
BACKGROUND Identification of the genes underlying psychiatric illness remains a thorny problem. Previously, Quantitative Trait Loci (QTL) for anxiety-like behaviors and beta-carboline-induced seizure vulnerability have been mapped to the distal portion of mouse chromosome 10, with crosses of A/J and C57BL6 mice. METHODS An interval specific congenic strain for this chromosomal 10 region facilitated the genetic dissection of novelty-induced exploratory behaviors. RESULTS By microarray studies, an unsuspected E3 ubiquitin ligase, Really Interesting New Gene (RING) Finger 41 (Rnf41) was differentially expressed in the region of interest, being upregulated in the hippocampi of B6 compared with A/J as well as congenic A.B6(chr10) versus A/J. By quantitative real-time polymerase chain reaction (qRT-PCR), Rnf41 expression levels were significantly increased 1.5- and 1.3-fold in the hippocampi of C57BL6/J and A.B6(chr10) mice compared with A/J mice, respectively. Protein levels of Rnf41 were increased in hippocampi of B6 mice compared with A/J mice across postnatal development with a 5.5-fold difference at P56. Yeast two-hybrid studies searching for Rnf41 binding partners in fetal hippocampus identified several potential targets. An interaction between Rnf41 and NogoA was validated by glutathionine-S-transferase-Rnf41 pulldown experiments. Re-analysis of a microarray database of human postmortem prefrontal cortex (Brodmann's Area 46/10) found that RNF41 messenger RNA expression levels were reduced significantly in patients with major depression and bipolar disorder compared with unaffected control subjects and confirmed by qRT-PCR. CONCLUSIONS Overall, Rnf41 is nominated as a candidate gene for anxiety-like behaviors, depression, and vulnerability to seizures. The RNF41 and its binding partners suggest molecular pathways underlying behavior, highlighting a potential role for the ubiquitin proteasome system in psychiatric illness.
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Choi KH, Nam TS, Choi SM. A Case of Familial Cortical Myoclonic Tremor With Epilepsy. J Mov Disord 2008. [DOI: 10.14802/jmd.08018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Choi SP, Park HK, Park KN, Kim YM, Ahn KJ, Choi KH, Lee WJ, Jeong SK. The density ratio of grey to white matter on computed tomography as an early predictor of vegetative state or death after cardiac arrest. Emerg Med J 2008; 25:666-9. [DOI: 10.1136/emj.2007.053306] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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167
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Chae HJ, Choi KH, Chae SW, Kim HM, Shin TK, Lee GY, Jeong GS, Park HR, Choi HI, Kim SB, Yoo SK, Kim HR. Placenta hominis protects osteoporosis in ovariectomized rats. Immunopharmacol Immunotoxicol 2006; 28:165-73. [PMID: 16684675 DOI: 10.1080/08923970600626197] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In China, Japan, and Korea, placenta hominis extracts (PHEs) are used clinically for the treatment of osteoporosis. The anti-osteoporotic effect of PHEs was studied. The trabecular bone area and thickness in OVX rats decreased by 50% from those in sham-operated rats; these decreases were completely inhibited by administration of PHEs for 7 weeks. Osteoclast numbers and the osteoblast surface were enhanced in OVX rats, but PHEs had no effect on these phenomena. Serum phosphorus and alkaline phosphatase in OVX rats increased compared to those in sham-operated rats, but the increases were not affected by the administration of PHEs. Thyroxine (T4) level was stimulated in OVX rats. The extracts inhibited the T4 level in the OVX rats. These results strongly suggest that PHEs be effective in preventing the development of bone loss induced by OVX in rats.
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Zoh KD, Kim TS, Kim JG, Choi KH. Degradation of parathion and the reduction of acute toxicity in TiO2 photocatalysis. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2005; 52:45-52. [PMID: 16312950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Photocatalytic degradation of methyl parathion was done using a circulating TiO2/UV and TiO2/solar reactor. Indoor experimental results showed that, under the photocatalysis conditions, parathion was more effectively degraded than under the photolysis and TiO2 only conditions. Parathion (38 microM) was completely degraded under photocatalysis within 90 min, and more than 80% TOC decrease after 150 minutes. The main ionic byproducts during the photocatalysis were measured, and almost complete nitrogen recovery was achieved as mainly NO3- NO2-, and NH4+, and 80% of sulfur as recovered as SO4(2)-. Organic intermediates such as nitrophenol and methyl paraoxon were also identified during the photocatalysis of parathion, and these were further degraded after 90 minutes. Microtox bioassay using Vibrio fischeri was used in evaluating the toxicity of solutions treated by photocatalysis and photolysis of parathion. The results showed that the acute toxicity expressed as EC50 almost reduced after 90 min under the photocatalysis condition whereas only 40% reduction of toxicity as EC50 was achieved in photolysis condition. The outdoor results using a TiO2/solar system were similar to the TiO2 indoor system, indicating the possibility of applying TiO2/solar system for the treatment of parathion-contaminated water.
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Park MC, Park YB, Jung SY, Chung IH, Choi KH, Lee SK. Risk of ovarian failure and pregnancy outcome in patients with lupus nephritis treated with intravenous cyclophosphamide pulse therapy. Lupus 2004; 13:569-74. [PMID: 15462485 DOI: 10.1191/0961203304lu1063oa] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study was designed to investigate the risk of ovarian failure and the pregnancy outcomes in women treated with intravenous cyclophosphamide (IVCYC) pulse therapy for lupus nephritis. Sixty-seven women with proliferative lupus nephritis were studied. The clinical and laboratory data, SLEDAI and damage indices at IVCYC initiation, doses and numbers of IVCYC pulses, pregnancy and fetal outcomes were evaluated. During a follow-up of 74.4+/-20.6 months, amenorrhea occurred in 25 (37.3%) and was sustained permanently in 10 patients (14.9%). Thirteen women became pregnant with a total of 19 pregnancies. Seventeen pregnancies ended without complications and all babies were born healthy without any congenital anomalies or perinatal illnesses. Two pregnancies were terminated by induced abortion but no congenital anomaly was noted in these cases. Logistic regression analysis showed that old age, high damage index at the initiation of IVCYC pulse therapy and high cumulative dosage of IVCYC were the independent risk factors of ovarian failure, and that the presence of amenorrhea, regardless of its duration, was the risk factor of pregnancy failure. Pregnancy was possible with a favorable outcome after the withdrawal of IVCYC pulse therapy, unless amenorrhea develops.
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Chae KJ, Yim SK, Choi KH. Application of a sponge media (BioCube) process for upgrading and expansion of existing caprolactam wastewater treatment plant for nitrogen removal. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2004; 50:163-171. [PMID: 15537004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
For the upgrade and expansion of an existing caprolactam wastewater treatment plant, a freely floating sponge media (BioCube) process was selected based on extensive pilot-plant tests, due to extreme space constraints. In order to protect nitrifier inhibition caused by high strength organics in caprolactam wastewater, the pilot plant consisted of an organics removal reactor, which functioned as a pretreatment for nitrification, and followed the nitrogen removal reactor. The suspended MLSS was 1,800-4,000 and the media attached MLSS was maintained at 22,000-26,000 mg/L. The final effluent COD was noticeably low, around 20.4-37 mg/L, even with fairly large fluctuations in the feed levels, between 1,400-6,770 mg/L. The removal of total nitrogen with the system, when denitrification was close to completion, was approximately 97.6%. For the entire run, complete nitrification of 99.6% was achieved, which might have been due to well-acclimatized nitrifiers attached in the BioCube media. Specifically, after adaptation, the nitrification continuously increased in the organics removal reactor, even under high residual organics conditions. From the numerous experimental results, the BioCube process seemed to be an effective method for the upgrading and expansion of the existing wastewater treatment plant, with minimum reactor enlargement.
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Chae KJ, Yim SK, Choi KH, Kim SK, Park WK. Integrated biological and electro-chemical treatment of swine manure. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2004; 49:427-434. [PMID: 15137454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A full-scale biogas plant was applied to the processing of 10 m3/d of swine manure. The plant consisted of an anaerobic digester and an engine-generator. The digester operation resulted in an 81% of COD removal, a 55% of VS reduction, and methane-rich biogas production that is used to generate electrical and thermal energies. To further treat the digested manure, for compliance with discharge limits, an electro-chemical oxidation with a dimensionally sable anode was investigated for the simultaneous elimination of both the remaining COD and ammonia nitrogen. It was able to reduce NH4+-N levels from as high as 1552 down to 25 mg/L in 160 min, and the COD from 1542 to 0.21 mg/L under the experimental conditions of 8 V, 30 A and 20,000 microS/cm. The amount of electricity required for a 90% removal of the residual COD and ammonia in 1 m3 of filtered digester manure, via electrochemical oxidation, were approximately 153 and 151 kWh, respectively. These values exceed the maximum potential capacity of the biogas-originated electricity through the digestion of swine manure containing normal VS content. However, approximately 50% of the required electricity for the electrochemical oxidation could be supplied from the engine-generator.
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Hong SW, Jeong HJ, Kim YS, Kim SI, Choi KH, Lee HY, Han DS, Park K. Nuclear factor kappa B activation in glomeruli of posttransplant IgA nephropathy using southwestern histochemistry. Transplant Proc 2003; 35:179-80. [PMID: 12591356 DOI: 10.1016/s0041-1345(02)03944-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Jeong HJ, Hong SW, Kim YS, Kim SI, Kim MS, Choi KH, Lee HY, Han DS, Park K. Histologic factors associated with nephrotic-range proteinuria in recurrent IGA nephropathy. Transplant Proc 2003; 35:291. [PMID: 12591405 DOI: 10.1016/s0041-1345(02)04011-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Park HC, Kang SW, Choi KH, Ha SK, Han DS, Lee HY. Clinical outcome in continuous ambulatory peritoneal dialysis patients is not influenced by high peritoneal transport status. Perit Dial Int 2002; 21 Suppl 3:S80-5. [PMID: 11887869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
OBJECTIVES We undertook this study to examine the influence of demographics, peritoneal membrane transport characteristics, nutrition indices, dialysis adequacy, and comorbid diseases on patient survival on continuous ambulatory peritoneal dialysis (CAPD), and to identify whether high peritoneal membrane transport is an independent risk factor for mortality on CAPD. DESIGN Our retrospective study was carried out in CAPD patients in a large tertiary care teaching hospital. METHODS Until December 2000, we followed 212 patients who started CAPD between 1994 and 1997 and who underwent a peritoneal equilibration test (PET) within 3 months of CAPD initiation. RESULTS By univariate analysis, comorbid diseases, old age, high peritoneal transport, and serum albumin predicted patient mortality. Independent predictors of mortality as determined by the Cox proportional hazard model included diabetes mellitus, cardiovascular disease, serum albumin, and old age. High peritoneal transport failed to independently influence mortality in our CAPD patients.
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Chung H, Kang YS, Hwang CS, Moon IK, Yim CH, Choi KH, Han KO, Jang HC, Yoon HK, Han IK. Deflazacort increases osteoclast formation in mouse bone marrow culture and the ratio of RANKL/OPG mRNA expression in marrow stromal cells. J Korean Med Sci 2001; 16:769-73. [PMID: 11748360 PMCID: PMC3054787 DOI: 10.3346/jkms.2001.16.6.769] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Information on precise effects of deflazacort on bone cell function, especially osteoclasts, is quite limited. Therefore, the present study was undertaken to test effects of deflazacort on osteoclast-like cell formation in mouse bone marrow cultures and on the regulation of osteoprotegerin (OPG) and its ligand (RANKL) mRNA expressions by RT-PCR in the ST2 marrow stromal cells. TRAP-positive mononuclear cells increased after the treatment of deflazacort at 10(-9) to 10(-7) M alone for 6 days in a dose-dependent manner. Number of TRAP-positive multi-nucleated cells (MNCs) increased significantly with combined treatment of deflazacort at 10(-7) M and 1,25-(OH)2D3 at 10(-9) M compared to that of cultures treated with 1,25-(OH)2D3 alone (p<0.05). Exposure to deflazacort at 10(-7) M in the presence of 1,25-(OH)2D3 at 10(-9) M in the last 3-day culture had greater stimulatory effect on osteoclast-like cell formation than that of the first 3-day culture did. Deflazacort at 10(-10) -10(-6) M downregulated OPG and upregulated RANKL in mRNA levels in a dose-dependent manner. These observations suggest that deflazacort stimulate osteoclast precursor in the absence of 1,25-(OH)2D3 and enhance differentiation of osteoclasts in the presence of 1,25-(OH)2D3. These effects are, in part, thought to be mediated by the regulation of the expression of OPG and RANKL mRNA in marrow stromal cells.
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