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Shimada T, Ishibashi Y, Murakami Y, Sano K, Tsukihashi H, Okada S, Kawakami K, Murakami R. Myocardial ischemia due to vasospasm of small coronary arteries detected by methylergometrine maleate stress myocardial scintigraphy. Clin Cardiol 2009; 22:795-802. [PMID: 10626082 PMCID: PMC6655961 DOI: 10.1002/clc.4960221208] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Recently, several case reports have implicated vasospasm of small coronary arteries in vasospastic angina pectoris. Vasospasm of small coronary arteries was also considered from angiographic findings in patients with atypical chest pain. In Syrian hamster, vasospasm in small coronary arteries was considered to be the cause of dilated cardiomyopathy. HYPOTHESIS This study was undertaken to determine whether vasospasm in small coronary arteries can be induced by methylergometrine maleate stress thallium-201 (201Tl) myocardial scintigraphy. METHODS Twenty-five patients with chest pain, all of whom had intact coronary arteries, were studied. After intracoronary methylergometrine maleate injection, coronary arteriograms also looked normal in all cases. Thallium-201 myocardial scintigraphy was carried out immediately after intracoronary methylergometrine maleate injection in four patients with chest pain. In the remaining 21 patients with chest pain, methylergometrine maleate was given intravenously within up to 2 weeks before 201Tl myocardial scintigraphy. RESULTS In the intracoronary injection study, one patient had chest discomfort after methylergometrine maleate injection, and ST-segment elevation was observed on electrocardiogram (ECG). Of the 21 patients with chest pain, 11 patients felt angina-like chest pain after intravenous injection of methylergometrine maleate, but their ECGs showed no ischemic changes. Stress 201Tl myocardial scintigrams showed methylergometrine maleate-induced perfusion defects with complete redistribution in 3 of 4 patients in the intracoronary injection study and in 12 of 21 patients in the intravenous injection study. These findings suggest that vasospasm in small coronary arteries caused myocardial ischemia in 15 of 25 patients (60%) with chest pain. CONCLUSION Vasospasm in small coronary arteries may be involved in the myocardial ischemia of some patients with chest pain who do not show any large coronary artery vasospasm.
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Murakami S, Ono T, Sakai S, Ijima H, Kawakami K. Effect of Diglucosamine on the Entrapment of Protein into Liposomes. J Liposome Res 2008; 16:103-12. [PMID: 16753965 DOI: 10.1080/08982100600680667] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Liposomes, which had entrapped bovine serum albumin (BSA), were modified with diglucosamine by two methods. The liposome was prepared by a freeze-thawing method in the presence of the disaccharide, or the disaccharide was added to the liposome prepared in advance without it. To examine the effects of diglucosamine, the morphology, mean particle size, and zeta potential of both liposomes were compared with those of BSA-entrapping liposome prepared without the disaccharide. Diglucosamine caused no remarkable change in shape and no aggregation of the liposome. The presence of the disaccharide was confirmed on the surfaces of modified liposomes, and the entrapment of BSA into the liposomes was increased by the disaccharide. The entrapment behavior was affected by the way the disaccharide was added, and the difference in the way the BSA was entrapped was also indicated.
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Kawakami K, Takama H, Nakashima D, Tanaka H, Uchida E, Akizawa T. Population pharmacokinetics of darbepoetin alpha in peritoneal dialysis and non-dialysis patients with chronic kidney disease after single subcutaneous administration. Eur J Clin Pharmacol 2008; 65:169-78. [PMID: 18807251 DOI: 10.1007/s00228-008-0561-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Accepted: 08/25/2008] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To characterize the pharmacokinetics of darbepoetin alpha and covariate relationships in chronic kidney disease (CKD) patients after a single subcutaneous administration. METHODS A total of 989 serum concentration recordings from 64 patients were analyzed using NONMEM with a model including endogenous erythropoietin production. The basic and final models were evaluated for stability using bootstrapping. RESULTS The selected basic model had one-compartment with a combination of the additive and constant coefficient of variation error models for residual variability. The significant covariate was weight for apparent clearance (CL/f) and apparent volume of central compartment (V(1)/f). The typical values of CL/f, V(1)/f, and absorption rate constant were 0.158 l/h, 13.7 l, and 0.0376/h, respectively. Evaluation by bootstrapping showed that the final model was stable. CONCLUSION The present analysis indicated that weight is a significant covariate for CL/f and V(1)/f. However, dosage adjustment according to weight is not necessary for subcutaneous administration of darbepoetin alpha in CKD patients.
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Umena Y, Kawakami K, Ohkuma A, Saijyou S, Naitow H, Shen JR, Kamiya N. Crystal structural analysis of photosystem II with the novel method to reduce X-ray radiation damage. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308090636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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105
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Kawakami K, Umena Y, Kamiya N, Shen JR. Coordination structure of two Cl −-binding sites in oxygen-evolving photosystem II. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308089447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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106
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Shimizu T, Kimura K, Sakai T, Kawakami K, Miyazaki T, Nakouji M, Ogawa A, Ohuchi H, Shimizu K. Synthesis and Evaluation of [2-(4-Quinolyloxy)phenyl]methanone Derivatives: Novel Selective Inhibitors of Transforming Growth Factor-β Kinase. J Med Chem 2008; 51:3326-9. [DOI: 10.1021/jm701626z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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107
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Fujita M, Kawakami K, Moriguchi S, Higuchi H. Locomotion of the Eurasian nuthatch on vertical and horizontal substrates. J Zool (1987) 2008. [DOI: 10.1111/j.1469-7998.2007.00395.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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108
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Takemasa H, Nagatomo T, Abe H, Kawakami K, Igarashi T, Tsurugi T, Kabashima N, Tamura M, Okazaki M, Delisle BP, January CT, Otsuji Y. Coexistence of hERG current block and disruption of protein trafficking in ketoconazole-induced long QT syndrome. Br J Pharmacol 2007; 153:439-47. [PMID: 17965736 DOI: 10.1038/sj.bjp.0707537] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND AND PURPOSE Many drugs associated with acquired long QT syndrome (LQTS) directly block human ether-a-go-go-related gene (hERG) K(+) channels. Recently, disrupted trafficking of the hERG channel protein was proposed as a new mechanism underlying LQTS, but whether this defect coexists with the hERG current block remains unclear. This study investigated how ketoconazole, a direct hERG current inhibitor, affects the trafficking of hERG channel protein. EXPERIMENTAL APPROACH Wild-type hERG and SCN5A/hNa(v) 1.5 Na(+) channels or the Y652A and F656C mutated forms of the hERG were stably expressed in HEK293 cells. The K(+) and Na(+) currents were recorded in these cells by using the whole-cell patch-clamp technique (23 degrees C). Protein trafficking of the hERG was evaluated by Western blot analysis and flow cytometry. KEY RESULTS Ketoconazole directly blocked the hERG channel current and reduced the amount of hERG channel protein trafficked to the cell surface in a concentration-dependent manner. Current density of the hERG channels but not of the hNa(v) 1.5 channels was reduced after 48 h of incubation with ketoconazole, with preservation of the acute direct effect on hERG current. Mutations in drug-binding sites (F656C or Y652A) of the hERG channel significantly attenuated the hERG current blockade by ketoconazole, but did not affect the disruption of trafficking. CONCLUSIONS AND IMPLICATIONS Our findings indicate that ketoconazole might cause acquired LQTS via a direct inhibition of current through the hERG channel and by disrupting hERG protein trafficking within therapeutic concentrations. These findings should be considered when evaluating new drugs.
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Torikai M, Tahara H, Kaji T, Shimono R, Yano T, Yoshioka T, Kawakami K, Takamatsu H. Immature teratoma of gallbladder associated with gliomatosis peritonei, a case report. J Pediatr Surg 2007; 42:E25-7. [PMID: 17923185 DOI: 10.1016/j.jpedsurg.2007.08.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The patient was a 9-month-old girl who presented with an abdominal mass. Computed tomography scan revealed that the huge heterogeneous mass with cystic, calcified, and solid components occupied the upper abdomen, and diagnosis of teratoma was made preoperatively. At the operation, a tumor arising from gallbladder and gliomatosis peritonei with intact ovaries were found. This is a rare case report of teratoma that originated in the gallbladder associated with gliomatosis peritonei.
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Kawai T, Miki K, Ichinose M, Kenji Y, Miyazaki I, Kawakami K, Kataoka M, Yamagishi T, Sofuni A, Itoi T, Moriyasu F, Takagi Y, Aoki T, Matsubayashi J, Mukai K. Changes in evaluation of the pepsinogen test result following Helicobacter pylori eradication therapy in Japan. Inflammopharmacology 2007; 15:31-5. [PMID: 17323193 DOI: 10.1007/s10787-006-0009-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AIMS The pepsinogen (PG) test result is used in Japan for screening for gastric cancer. In this study, we investigated the changes in evaluation of the PG test result following H. pylori eradication. METHODS The subjects were 120 consecutive H. pylori-positive patients with upper gastrointestinal symptoms. Subjects underwent endoscopy prior to, and at 2 months after the eradication therapy, at which time blood was taken for determination of changes in PG levels. RESULTS The overall eradication rate was 79.3% (per protocol). Following eradication therapy, the evaluation of PG test result converted from positive to negative in 80.4% (37/46) of cases of successful eradication, and in 0% (0/6) of cases of eradication failure. CONCLUSIONS These results suggest that the evaluation of PG test result should be used after the definitive confirmation of the success or failure of H. pylori eradication therapy.
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Takahashi J, Kawasaki K, Kawakami K, Sugiyama M. Three-dimensional atom probe analysis of chromium- and copper-added nitriding steel. SURF INTERFACE ANAL 2007. [DOI: 10.1002/sia.2520] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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112
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Kawakami K, Ikeda K. Modulation of neural activities by Na, K-ATPase alpha 2 subunit through functional coupling with transporters. Cell Mol Biol (Noisy-le-grand) 2006; 52:92-6. [PMID: 17535742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2006] [Accepted: 10/30/2006] [Indexed: 05/15/2023]
Abstract
Na,K-ATPase is the active transporter that maintains Na+ and K+ gradients across the cell membrane. The enzyme is composed of Alpha and Beta subunits and there are four Alpha and three Beta subunit isoforms. The enzyme is responsible for various physiological processes including housekeeping function of animal cells, and specific function has been allocated to each isoform during evolution. We found that the Na,K-ATPase Alpha2 subunit functions in concert with various transporters during ontogeny by analyses of phenotypes of mice with defective Alpha2 subunit. The homozygous mice die soon after birth without breathing and the heterozygous mice show late-onset obesity. We summarize here the specific functions of the Na,K-ATPase Alpha2 subunit and physiological roles in vivo.
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Mochizuki M, Ouchi A, Kawakami K, Ishida T, Li TC, Takeda N, Ikeda H, Tsunemitsu H. Epidemiological study of hepatitis E virus infection of dogs and cats in Japan. Vet Rec 2006; 159:853-4. [PMID: 17172482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
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114
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Oda M, Ishikawa N, Tsunezuka Y, Matsumoto I, Tamura M, Kawakami K, Watanabe G. Closed three-port anatomic lobectomy with systematic nodal dissection for lung cancer. Surg Endosc 2006; 21:1464-5. [PMID: 17165119 DOI: 10.1007/s00464-006-9074-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2006] [Accepted: 08/10/2006] [Indexed: 10/23/2022]
Abstract
Closed three-port anatomic lobectomy of the lung with systematic nodal dissection was performed in 5 patients with clinical stage IA lung cancer. For removal of the resected specimen, a new technique was developed to avoid making an additional skin incision. No complications or deaths occurred after the operation, and all patients were alive longer than 27 months without recurrence, including 5-year survivors.
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Ikeda K, Ando Z, Kageyama R, Kawakami K. [P33]: Six1 is a key regulator of multiple cell type differentiation in olfactory epithelium. Int J Dev Neurosci 2006. [DOI: 10.1016/j.ijdevneu.2006.09.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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116
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Yamakado M, Ando Z, Kawakami K, Ikeda K. [P34]: Roles of Six1 and Six4 in development of cranial ganglia. Int J Dev Neurosci 2006. [DOI: 10.1016/j.ijdevneu.2006.09.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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117
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Nakatani Y, Kawakami K, Nagaoka T, Utsunomiya I, Tanaka K, Yoshino H, Miyatake T, Hoshi K, Taguchi K. Ca 2+ Channel Currents Inhibited by Serum from Select Patients with Guillain-Barré Syndrome. Eur Neurol 2006; 57:11-8. [PMID: 17108689 DOI: 10.1159/000097004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2006] [Accepted: 07/10/2006] [Indexed: 11/19/2022]
Abstract
We performed an electrophysiological study demonstrating inhibition of spontaneous muscle action potentials within a coculture of rat muscle and spinal cord by exposure to serum, as well as purified IgG, from patients with the acute motor axonal neuropathy (AMAN) variant of Guillain-Barré syndrome (GBS). However, exposure to serum from two patients with the acute inflammatory demyelinating polyneuropathy (AIDP) form of GBS had no effect. Using a whole-cell recording technique, we then investigated the effects of serum and purified IgG from patients with GBS on voltage-dependent calcium channel (VDCC) currents in nerve growth factor-differentiated PC12 cells. Serum from patients with GBS (AMAN) inhibited VDCC currents in PC12 cells, which was fully reversible by washing with the bath solution. Similarly, purified IgG from the serum of two patients with GBS (AMAN) also inhibited VDCC currents in PC12 cells. In contrast, sera from patients with AIDP and healthy volunteers did not affect VDCC currents in PC12 cells. These results suggest that muscle weakness in some patients with GBS might be induced by inhibition of Ca2+ channel currents within motor nerve terminals.
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118
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Iacopetta B, Li WQ, Grieu F, Ruszkiewicz A, Kawakami K. BRAF mutation and gene methylation frequencies of colorectal tumours with microsatellite instability increase markedly with patient age. Gut 2006; 55:1213-4. [PMID: 16849360 PMCID: PMC1856250 DOI: 10.1136/gut.2006.095455] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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119
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Kawakami K, Ruszkiewicz A, Bennett G, Moore J, Grieu F, Watanabe G, Iacopetta B. DNA hypermethylation in the normal colonic mucosa of patients with colorectal cancer. Br J Cancer 2006; 94:593-8. [PMID: 16421593 PMCID: PMC2361181 DOI: 10.1038/sj.bjc.6602940] [Citation(s) in RCA: 113] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2005] [Revised: 11/21/2005] [Accepted: 12/02/2005] [Indexed: 12/27/2022] Open
Abstract
The CpG-island methylator phenotype (CIMP+) in colorectal cancer (CRC) is characterised by frequent hypermethylation of promoter regions in tumour suppressor genes. Low level methylation of some CpG islands is also seen in the normal colonic mucosa and increases with age; however, it is still unclear what other factors regulate this phenomenon. The first aim of our study was to determine whether the level of promoter methylation is elevated in the normal colonic mucosa of patients with CIMP+ tumours. The second aim was to investigate whether common, functional polymorphisms in genes involved in methyl group metabolism are associated with the level of methylation in this tissue. CpG islands within the ERalpha, MYOD, P16(INK4A), MLH1, APC, P14(ARF), DAPK and TIMP3 genes were quantitatively evaluated for methylation in normal colonic mucosa from a large series of CRC patients using the MethyLight assay. Genotyping was carried out for polymorphisms in the MTHFR, TS, MS, MTHFD1 and DNMT3b genes. Methylation of ERalpha and MYOD in normal colonic mucosa increased with age and was higher in female subjects. Methylation of P16(INK4A), MLH1, TIMP3 and DAPK in normal mucosa occurred at a lower level than ERalpha and MYOD but also increased with age and was significantly higher in patients with CIMP+ tumours. The DNMT3b C46359T polymorphism was associated with significantly less methylation of MYOD and MLH1 and with trends for lower methylation in each of the other CpG islands examined. Our results demonstrate that age, gender and genetic factors can influence the methylation level of CpG islands in gene promoter regions of normal colonic mucosa. Further work is required to determine whether such methylation is associated with the development of CIMP+ CRC.
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Depping R, Kawakami K, Hartmut O, Wagner JM, Heringlake M, Noetzold A, Sievers HH, Wagner KF. The erythropoietin receptor is expressed in the human heart and upregulated after cardio-pulmonary bypass: possible mechanism of myocardial protection. Thorac Cardiovasc Surg 2006. [DOI: 10.1055/s-2006-925764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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121
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Yamaguchi K, Chijiiwa K, Saiki S, Nishihara K, Takashimat M, Kawakami K, Tanaka M. Retrospective analysis of 70 operations for gallbladder carcinoma. Br J Surg 2005. [DOI: 10.1046/j.1365-2168.1997.02498.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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122
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Suita S, Noguchi S, Takamatsu H, Mizote H, Nagasaki A, Inomata Y, Hara T, Okamura J, Miyazaki S, Kawakami K, Eguchi H, Tsuneyoshi M. Clinical characteristics and the prognosis of rhabdomyosarcoma - a report from the Study Group for Pediatric Solid Malignant Tumors in the Kyushu Area, Japan. Eur J Pediatr Surg 2005; 15:409-13. [PMID: 16418958 DOI: 10.1055/s-2005-872927] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
AIM There have been no nationwide group studies for patients with rhabdomyosarcoma in Japan. This study aims to assess the actual state of treatments and their outcome. PATIENTS AND METHODS From 1982 to 1996, 79 rhabdomyosarcomas were registered by the Study Group for Pediatric Solid Malignant Tumors in the Kyushu Area. The prognostic factors and treatments were assessed based on the 5-year survival rate. The staging was done according to the Intergroup Rhabdomyosarcoma Study (IRS) Clinical Grouping Classification. RESULTS The 5-year survival rate for all patients was 39.1 %. The survival rates for each factor were as follows, according to 1) group; 77.8 % for Group I, 51.9 % for Group II, 33.7 % for Group III, and 20.2 % for Group IV; 2) primary site: 56.3 % for the head and neck, 43.8 % for the parameningeal region, 12.5 % for the extremity, 58.3 % for the genitourinary region, and 30.5 % for the others; 3) histology: 35.8 % for the embryonal type, 36.8 % for the alveolar type. CONCLUSIONS Altogether, the outcome of this study was poor. To improve outcomes, a new nationwide group study for rhabdomyosarcoma, which we belong to, has just started in Japan.
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Tsurusawa M, Manabe A, Hayashi Y, Akiyama Y, Kigasawa H, Inada H, Noguchi Y, Sawai N, Kobayashi R, Nagatoshi Y, Kawakami K, Kojima S, Nakahata T. Therapy-related myelodysplastic syndrome in childhood: A retrospective study of 36 patients in Japan. Leuk Res 2005; 29:625-32. [PMID: 15863201 DOI: 10.1016/j.leukres.2004.11.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2004] [Accepted: 11/29/2004] [Indexed: 01/08/2023]
Abstract
We report here a retrospective analysis of 36 children with therapy-related myelodysplastic syndrome (t-MDS) diagnosed between 1990 and 1999 in Japan. Their median age was 7.7 years and the median latency period for the development of t-MDS was 38.5 months. The primary tumors were hematologic in 15 of the cases and nonhematologic in 21. Chromosomal abnormalities were detected in 32/34(94%) patients: abnormalities of chromosomes 5and/or 7 in 41% and notably, 11q23 abnormalities in 31%. The prognosis of children with t-MDS was very poor as compared to children with primary MDS (5 year survival: 16% versus 54%, p<0.0001).
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Kawakami K, Graziano F, Watanabe G, Ruzzo A, Santini D, Catalano V, Bisonni R, Ficarelli R, Cascinu S, Magnani M. Prognostic role of thymidylate synthase (TS) gene polymorphisms in gastric cancer patients treated with surgery and adjuvant chemotherapy. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.4044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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125
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Kadota J, Mizunoe S, Mito K, Mukae H, Yoshioka S, Kawakami K, Koguchi Y, Fukushima K, Kon S, Kohno S, Saito A, Uede T, Nasu M. High plasma concentrations of osteopontin in patients with interstitial pneumonia. Respir Med 2005; 99:111-7. [PMID: 15672859 DOI: 10.1016/j.rmed.2004.04.018] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Osteopontin (OPN) produced by alveolar macrophages functions as a fibrogenic cytokine in the development of bleomycin (BLM)-induced murine pulmonary fibrosis, and OPN mRNA is expressed on lung tissues from patients with idiopathic pulmonary fibrosis (IPF). The present study investigates plasma OPN levels in human interstitial pneumonia (IP) and their relationships with disease severity by analyzing the correlation between plasma OPN concentrations and pulmonary functions. The concentrations of OPN in plasma were measured in 17 patients with IP, in 9 with sarcoidosis and in 20 healthy controls using an antigen-capture enzyme-linked immunosorbent assay. The concentrations of OPN in plasma were significantly higher in IP patients than in those with sarcoidosis or in controls. Based on a Receiver Operating Characteristic curve analysis, cut-off points between 300 and 380 ng/ml discriminated between IP and control subjects with 100% sensitivity and 100% specificity. In such case, the sensitivity for sarcoidosis decreased (55.5-33.3%) in cut-offs with 100% specificity. Plasma OPN levels inversely and closely correlated with arterial oxygen tension (PaO2) in patients with IP. Immunohistochemically, OPN was localized predominantly in macrophages and airway epithelium. These findings suggest that plasma OPN levels were found to be associated with the presence of IP, and that OPN play an important role in the development of IP.
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