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Nomura S, Inami N, Kimura Y, Omoto S, Shouzu A, Nishikawa M, Iwasaka T. Effect of nifedipine on adiponectin in hypertensive patients with type 2 diabetes mellitus. J Hum Hypertens 2006; 21:38-44. [PMID: 17051237 DOI: 10.1038/sj.jhh.1002100] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Nifedipine, a dihydropyridine calcium antagonist, improves endothelial function in patients with hypercholesterolaemia by enhancing nitric oxide (NO) activity, and increases endothelial NO bioavailability by antioxidant mechanisms. We administered a long-acting nifedipine formulation (controlled release (CR) nifedipine: 20 mg/day) to hypertensive patients for 6 months. There were no other changes of drug treatment during therapy with CR nifedipine. Clinical and biochemical data obtained before and after CR nifedipine administration were compared. All markers were measured by enzyme-linked immunosorbant assay. The levels of soluble markers (soluble CD40 ligand, soluble P-selectin, and soluble E-selectin), microparticles (MP) (platelet-derived MP, monocyte-derived MP, and endothelial cell-derived MP), and adiponectin differed between the control group and the hypertension group. The levels of these markers were also different in hypertensive patients with and without type 2 diabetes compared with the control group. In the hypertensive patients with type 2 diabetes, all markers except adiponectin decreased significantly after 3 months of CR nifedipine treatment. In contrast, markers were unchanged in the hypertensive patients without type 2 diabetes. Adiponectin was increased after 6 months of CR nifedipine treatment in hypertensive patients with type 2 diabetes. The effects of CR nifedipine on platelet/monocyte activation and adiponectin levels demonstrated in the present study indicate the potential effectiveness of calcium antagonist therapy for hypertensive patients with type 2 diabetes.
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Calvi AM, Allinson G, Jones P, Salzman S, Nishikawa M, Turoczy N. Trace metal concentrations in wild and cultured Australian short-finned eel (Anguilla australis Richardson). BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2006; 77:590-6. [PMID: 17123020 DOI: 10.1007/s00128-006-1104-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2006] [Accepted: 09/01/2006] [Indexed: 05/12/2023]
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103
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Nishikawa M, Bessho N, Natsui T, Ohta Y, Yoshida N, Seo DS, Iimura Y, Kobayashi S. A Model of the Unidirectional Alignment Accompanying the Pretilt Angle of a Nematic Liquid Crystal (NLC), 5CB, Oriented on Rubbed Organic-Solvent-Soluble Polyimide Film. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259608034058] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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104
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Nishikawa M, Taheri B, West JL. Effect of Chemical Structures of Polyimides on Unidirectional Liquid Crystal Alignment using a Single Linearly Polarized UV Exposure. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259808025384] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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105
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Nishikawa M, Miyamoto T, Kawamura S, Tsuda Y, Bessho N, Seo DS, Iimura Y, Kobayashi S. Relationship between Pretilt Angles of Liquid Crystals and Surface Energies of Polyimides Containing Fluorine Atoms. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259508034568] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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106
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Sakai Y, Nishikawa M, Leyton M, Benkelfat C, Young SN, Diksic M. Cortical trapping of alpha-[(11)C]methyl-l-tryptophan, an index of serotonin synthesis, is lower in females than males. Neuroimage 2006; 33:815-24. [PMID: 16996279 DOI: 10.1016/j.neuroimage.2006.08.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2006] [Revised: 06/27/2006] [Accepted: 08/04/2006] [Indexed: 10/24/2022] Open
Abstract
One neural system that may exhibit gender differences is serotonin (5-HT), a neurotransmitter implicated in the regulation of mood, cognitive processes, and impulse-control. However, most of the available evidence of gender-related differences in this system has been indirect and at times contradictory. The objective of the present study was to follow up on preliminary evidence that there are gender differences in brain regional 5-HT synthesis, as measured by trapping of alpha-[(11)C]methyl-l-tryptophan (alpha-[(11)C]MTrp). Sixty-minute dynamic scans were performed in healthy volunteers, 28 women and 31 men. Functional images of the brain trapping constant, used as a proxy for 5-HT synthesis, which correlate in the rat brain with tryptophan's conversion into 5-HT, were transferred to the standardized 3D space. The voxel based comparison was performed by Statistical Parametric Mapping with proportional normalization. There was lower normalized alpha-[(11)C]MTrp trapping in females than males throughout much of the cerebral cortex, including the left middle frontal gyrus, the bilateral inferior frontal gyrus, the bilateral precentral gyrus, the left supramarginal gyrus, the bilateral inferior parietal lobule, the left superior temporal gyrus, the bilateral posterior cingulate gyrus, and the bilateral precuneus. There were no regions in which the normalized trapping was significantly higher in females than in males. Gender differences in sub-cortical sites were not found. Women, compared to men, may have lower rates of this tracer trapping, used as a proxy for 5-HT synthesis, throughout much of the cerebral cortex which is likely related to differences in 5-HT synthesis because relative differences in the normalized trapping should be the same as those in 5-HT synthesis. These differences may be related, at least in part, to previously suggested gender differences in affect, cognitive processes, and susceptibility to 5-HT-related neuropsychiatric and neurological disorders.
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Miner D, Allinson G, Salzman S, Nishikawa M, Turoczy N. Trace metal concentrations in the Balmain bug (Ibacus peronii Leach, 1815) from Southwest Victoria, Australia. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2006; 76:1007-13. [PMID: 16855908 DOI: 10.1007/s00128-006-1018-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2006] [Accepted: 05/11/2006] [Indexed: 05/10/2023]
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108
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Nomura S, Shouzu A, Omoto S, Matsuzaki T, Yamaoka M, Abe M, Hosokawa M, Nishikawa M, Iwasaka T, Fukuhara S. Genetic analysis of HLA, NA and HPA typing in type 2 diabetes and ASO. Int J Immunogenet 2006; 33:117-22. [PMID: 16611256 PMCID: PMC1464425 DOI: 10.1111/j.1744-313x.2006.00581.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We examined the genetic status of human leucocyte antigens (HLA), human platelet alloantigens (HPA) and neutrophil-specific antigens (NA) in patients with type 2 diabetes mellitus and diabetic arteriosclerosis obliterans (ASO). To our knowledge, the present study is the first report showing the relationship among three genetic factors in type 2 diabetes mellitus and ASO patients. HLA typing was performed by the polymerase chain reaction (PCR)-restriction fragment length polymorphism method. HPA-typing and NA-typing were by a PCR-sequence-specific primer method. The incidence of HLA-DRB1*1501 was found to be significant in type 2 diabetes and non-diabetic, particularly ASO-positive patients, compared to control subjects. There were no differences in NA1/NA2 between the control and diabetic or non-diabetic ASO groups. However, the frequency of NA2/NA2 in ASO-positive diabetes and non-diabetic ASO patients was significantly higher than controls. The a/b genotype of HPA-5a/5b was significantly lower in type 2 diabetes and non-diabetic ASO-positive patients than in controls. These findings suggest that genetic studies of HLA, NA and HPA could be useful to understand the pathogenesis of type 2 diabetes and ASO.
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109
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Ohtsuka Y, Higashi M, Nishikawa M. Fundamental experiment for inspection of cooling pipes in operation by using ultrasonic technique. FUSION ENGINEERING AND DESIGN 2006. [DOI: 10.1016/j.fusengdes.2005.09.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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110
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Oyaidzu M, Kimura H, Yoshikawa A, Nishikawa Y, Munakata K, Okada M, Nishikawa M, Okuno K. Correlation between annihilation of irradiation defects and tritium release in neutron-irradiated lithium zirconate. FUSION ENGINEERING AND DESIGN 2006. [DOI: 10.1016/j.fusengdes.2005.06.361] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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111
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Katayama K, Nagase H, Nishinakamura C, Takeishi T, Nishikawa M. Erosion of carbon deposition layer by hydrogen RF plasma. FUSION ENGINEERING AND DESIGN 2006. [DOI: 10.1016/j.fusengdes.2005.09.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nishikawa M, Oshitani N, Matsumoto T, Nishigami T, Arakawa T, Inoue M. Accumulation of mitochondrial DNA mutation with colorectal carcinogenesis in ulcerative colitis. Br J Cancer 2005; 93:331-7. [PMID: 15956973 PMCID: PMC2361569 DOI: 10.1038/sj.bjc.6602664] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
We recently reported that oxidative stress elicited by chronic inflammation increases the mutation of mitochondrial DNA (mtDNA) and possibly correlates with precancerous status. Since severe oxidative stress is elicited in the colorectal mucosa of individuals with ulcerative colitis (UC), the possible occurrence of an mtDNA mutation in the inflammatory colorectal mucosa and colitic cancer was investigated. Colorectal mucosal specimens were obtained from individuals with UC with and without colitic cancer and from control subjects. The frequency of mtDNA mutations was higher in colorectal mucosal specimens from patients with UC than that from control subjects. The levels of 8-hydroxy-2′-deoxyguanosine, a DNA adduct by reactive oxygen species, were significantly higher in UC than in control. Specimens from patients with colitic cancer contained a significantly higher number of mtDNA mutations. The present observations suggest that the injury followed by the regeneration of colorectal mucosal cells associated with chronic inflammation causes accumulation of mtDNA mutations. The increased instability of genes, including those on the mtDNA, is consistent with the high and multicentric incidence of colorectal cancer in individuals with UC. Thus, analysis of mtDNA could provide a new criterion for the therapeutic evaluation, and may be useful for the prediction of risk of carcinogenesis.
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114
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Nishikawa M, Kumakura Y, Young SN, Fiset P, Vogelzangs N, Leyton M, Benkelfat C, Diksic M. Increasing blood oxygen increases an index of 5-HT synthesis in human brain as measured using alpha-[(11)C]methyl-L-tryptophan and positron emission tomography. Neurochem Int 2005; 47:556-64. [PMID: 16157418 DOI: 10.1016/j.neuint.2005.07.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2005] [Revised: 06/21/2005] [Accepted: 07/15/2005] [Indexed: 10/25/2022]
Abstract
The main objective of this investigation was to test the hypothesis that brain serotonin (5-HT) synthesis, as measured by trapping of alpha-[(11)C]methyl-L-tryptophan (alpha-MTrp) using positron emission tomography (PET), can be modulated by changes in blood oxygen. The study involved six healthy participants (three male and three female), who breathed a 15% or 60% oxygen mixture starting 15 min before the injection of tracer and continuing during the entire acquisition period. Participants were injected with up to 12m Ci of alpha-MTrp. Two sets of PET images were acquired while the participants were breathing each of the oxygen mixtures and, after reconstruction, all images were converted into brain functional images illustrating the brain trapping constant K(*) (microL/g/min). The K(*) values were obtained for 12 regions of interest outlined on the magnetic resonance images. The K(*) values obtained at high and low blood oxygen content were compared by paired statistics using Tukey's post hoc correction. As there were no difference in plasma tryptophan concentrations, these K(*) values are directly related to regional 5-HT synthesis. The results showed highly significant increases (50% on average) in brain serotonin synthesis (K(*) values) at high (mean value of 223+/-41 mmHg) relative to low (mean value 77.1+/-7.7 mmHg) blood oxygen levels. This suggests that tryptophan hydroxylase is not saturated with oxygen in the living human brain and that increases in blood oxygen can elevate brain serotonin synthesis.
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115
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Nishikawa M, Nishiguchi S, Kioka K, Tamori A, Inoue M. Interferon reduces somatic mutation of mitochondrial DNA in liver tissues from chronic viral hepatitis patients. J Viral Hepat 2005; 12:494-8. [PMID: 16108764 DOI: 10.1111/j.1365-2893.2005.00623.x] [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: 12/09/2022]
Abstract
We recently reported that the genetic instability resulting in the high rate of mitochondrial DNA (mtDNA) mutation in noncancerous liver tissue is consistent with the multicentric hepatocarcinogenesis detected clinically. Interferon (IFN) has been reported to reduce hepatocarcinogenesis in individuals with hepatitis virus infection. Liver biopsy specimens were obtained from 26 patients with chronic hepatitis C virus (HCV) infection before and after IFN therapy (total dose: 252 million units). The mean (+/-SD) age of the study population was 45 +/- 9 years and 13 (50%) were male [mode of acquisition: blood transfusion (27%), unknown (73%); viral load: 5.2 +/- 1.1 k copies/mL; duration of infection: 17 +/- 9 years (65%), unknown (35%); genotype: I (4%), II (80%), III (8%), IV (8%); alcohol intake: positive (31%), negative (69%)]. DNA samples were extracted from the specimens and subjected to direct sequencing. The mtDNA mutation frequency in the D-loop was increased in liver specimens from individuals with HCV infection compared with 21 controls (2.5 vs 0.6, P < 0.001). IFN therapy decreased the mtDNA mutation (mean difference = 0.7, P < 0.001) and the decreased number of mtDNA mutations was positively correlated with suppression of the total histological activity index score (mean difference = 1.3, P < 0.01). These results clearly indicate that the mutational rate of mtDNA is strongly associated with IFN therapy. Thus, analysis of mtDNA could provide a new criterion for the therapeutic evaluation of the effect of IFN, and may be useful for the prediction of risk of carcinogenesis.
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116
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Nishikawa M, Nakamura N. Novel structure of 1,1'-disubstituted ferrocene derivative. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305083418] [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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117
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Katayama K, Takeishi T, Nagase H, Manabe Y, Nishikawa M, Miya N, Masaki K. Release Behavior of Hydrogen Isotopes from JT-60U Graphite Tiles. FUSION SCIENCE AND TECHNOLOGY 2005. [DOI: 10.13182/fst05-a987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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118
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Isobe K, Nakamura H, Kaminaga A, Higashijima S, Nishi M, Konishi S, Nishikawa M, Tanabe T. Tritium Release Behavior from JT-60U Vacuum Vessel during Air Exposure Phase and Wall Conditioning Phase. FUSION SCIENCE AND TECHNOLOGY 2005. [DOI: 10.13182/fst05-a932] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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119
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Tanimura S, Higashino M, Fukunaga Y, Kishida S, Nishikawa M, Ogata A, Osugi H. Laparoscopic distal gastrectomy with regional lymph node dissection for gastric cancer. Surg Endosc 2005; 19:1177-81. [PMID: 16132317 DOI: 10.1007/s00464-004-8936-4] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2005] [Accepted: 02/28/2005] [Indexed: 12/17/2022]
Abstract
BACKGROUND Recent advances in surgical techniques have led to widespread acceptance of laparoscopic gastrectomy for gastric cancer. We performed distal gastrectomy with regional lymph node dissection in 235 patients with gastric cancer located in the middle and lower third of the stomach. METHODS In 171 cases, reconstruction was done using the Billroth I method intracorporeally and the aid of laparoscopic linear stapling devices. The Billroth II and Roux-en-Y methods were used in the remaining 56 and eight patients, respectively, RESULTS Patients who underwent laparoscopic distal gastrectomy had a more rapid postoperative recovery than those treated via the open approach. Postoperative complications with this technique were within a permissible range. In terms of the survival curve, there was no statistical difference between the laparoscopic group diagnosed as clinical T2N0 (c T2N0) Preoperatively and the open group. CONCLUSION The laparoscopic technique is not only less invasive, but is also similarly safe and curative compared to open gastrectomy.
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Nishikawa M, Itakura A, Ito M, Takeuchi M, Sato Y, Kajiyama H, Mizutani S, Kikkawa F. Changes in placental dipeptidyl peptidase IV in preeclampsia with intrauterine growth restriction. Horm Metab Res 2005; 37:408-13. [PMID: 16034711 DOI: 10.1055/s-2005-870229] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The purpose of this study was to examine alterations in placental expression of dipeptidyl peptidase IV (DPPIV). The localization of DPPIV was compared in control and preeclamptic placentas. Enzyme activity, mRNA, and protein expression were also measured. In term placentas, DPPIV was expressed preferentially in the fetal vascular endothelial cells within stem villi and only weakly in the villous stromal cells. DPPIV activity in control placentas showed no remarkable changes throughout gestation. Levels of activity in samples from normotensive control cases and women having preeclampsia with or without intrauterine growth restriction were 11.8 +/- 2.1, 13.4 +/- 1.1, and 15.3 +/- 0.62 pmol pNA/min/mg protein, respectively. The preeclamptic placentas with intrauterine growth restriction thus showed significantly higher levels of activity than the controls (p < 0.05). We propose that placental DPPIV influences fetal metabolism via the degradation of fetoplacental circulating bioactive peptides, including incretins, resulting in the regulation of fetal growth.
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121
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Yuzawa H, Fujioka H, Mizoe A, Azuma T, Furui J, Nishikawa M, Hashida M, Kanematsu T. Inhibitory effects of safe and novel SOD derivatives, galactosylated-SOD, on hepatic warm ischemia/reperfusion injury in pigs. HEPATO-GASTROENTEROLOGY 2005; 52:839-43. [PMID: 15966216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
BACKGROUND/AIMS Oxygen-derived free radicals such as superoxide play an important role in ischemia/reperfusion (IR) injury during and after extensive liver surgery or liver transplantation. Superoxide dismutase (SOD) has protective effects against hepatic IR injury. The effect of native SOD is, however, limited because of rapid elimination from the blood circulation and poor affinity for liver cells. It was reported by our collaborators that a SOD derivative modified with galactose (Gal-SOD) was selectively delivered well to hepatocytes by direct attachment to galactose receptors. In the present study, the efficacy of this agent for attenuating hepatic warm IR injury was investigated using the pig model. METHODOLOGY After 45-min clamping of the hepatic artery and portal vein, pigs were divided into 3 groups according to the following treatments. Ten milliliters of normal saline in Group 1 (n=5), 10,000 units/kg of native SOD in Group 2 (n=5) and 10,000 units/kg of Gal-SOD in Group 3 (n=5) were given just prior to hepatic reperfusion. Liver function including clearance of total bile acid (TBA) and hyaluronic acid (HA) was investigated. Lipid peroxidase of the liver tissue (LPO) and histological findings were examined. In addition, survival rates of the pigs in each group were evaluated. RESULTS The survival rates at the 7th day after the operation were 60%, 80%, 100% in Groups 1, 2 and 3, respectively. Liver function tests, clearance of TBA and HA, and LPO levels were significantly improved in Groups 3 over findings in Groups 1 and 2. Congestion of hepatic tissues and vacuolization of hepatocytes in Group 3 were less than those in Groups 1 and 2. These results suggested that oxygen-derived free radicals were scavenged by Gal-SOD and IR injury was attenuated. CONCLUSIONS A safe and novel agent, Gal-SOD has a protective effect against hepatic warm IR injury.
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Nomura S, Shouzu A, Omoto S, Nishikawa M, Iwasaka T. Benidipine improves oxidized LDL-dependent monocyte and endothelial dysfunction in hypertensive patients with type 2 diabetes mellitus. J Hum Hypertens 2005; 19:551-7. [PMID: 15829999 DOI: 10.1038/sj.jhh.1001863] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We investigated the effects of long-term benidipine treatment on levels of monocyte and endothelial cell activation markers in hypertensive patients with (n = 28) and without (n = 10) type 2 diabetes mellitus. Benidipine, 4 mg/day, was administered for 6 months; there were no other changes in any of the patients pharmacologic regimens during benidipine treatment. Clinical and biochemical data obtained before and after benidipine administration were compared; all markers were measured by ELISA. The levels of platelet activation markers (CD62P, CD63, and PAC-1), microparticles (monocyte-derived microparticles: MDMPs, and endothelial cell-derived microparticles: EDMPs), chemokines (monocyte chemotactic peptide 1: MCP-1, regulated on activation normally T-cell expressed and secreted: RANTES) and soluble adhesion markers (soluble E-selectin and soluble ICAM-1) differed in the control and hypertension groups. In addition, levels of platelet, monocyte, and endothelial cell activation markers, microparticles, chemokines, and soluble adhesion molecules were higher in hypertensive patients than in those without type 2 diabetes. Furthermore, benidipine administration decreased the concentrations of all these markers. The effect of this drug was significant in diabetes patients with high levels of antioxidized low-density lipoprotein (LDL) antibody. These results suggest that benidipine is effective for the treatment of oxLDL-dependent vascular disorders in hypertensive patients with type 2 diabetes.
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Hashimoto A, Nishikawa M, Kuroda N, Nambu M. Which is more effective, inhaling aerosol through nose or through mouth? J Allergy Clin Immunol 2005. [DOI: 10.1016/j.jaci.2004.12.862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sakai M, Nishikawa M, Thanaketpaisarn O, Yamashita F, Hashida M. Hepatocyte-targeted gene transfer by combination of vascularly delivered plasmid DNA and in vivo electroporation. Gene Ther 2004; 12:607-16. [PMID: 15616599 DOI: 10.1038/sj.gt.3302435] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
To increase transgene expression in the liver, electric pulses were applied to the left lateral lobe after intravenous injection of naked plasmid DNA (pDNA) or pDNA/liver targeting vector complex prepared with galactosylated poly(L-lysine) or galactosylated polyethyleneimine. Electroporation (250 V/cm, 5 ms/pulse, 12 pulses, 4 Hz) after naked pDNA injection dramatically increased the expression up to 200,000-fold; the expression level obtained was significantly greater than that achieved by the combination of pDNA/vector complex and electroporation. We clearly demonstrated that the expression was dependent on the plasma concentration of pDNA at the time when the electric pulses were applied. Separation of liver cells revealed that the distribution of naked pDNA as well as transgene expression was largely selective to hepatocytes in the electroporated lobe. The number of cells expressing transgene product using vascularly administered naked pDNA followed by electroporation was significantly (P<0.01) greater and more widespread than that obtained by local injection of naked pDNA. These results indicate that the application of in vivo electroporation to vascularly administered naked pDNA is a useful gene transfer approach to a large number of hepatocytes.
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Park M, Tanito M, Nishikawa M, Hayashi K, Chichara E. Combined viscocanalostomy and cataract surgery compared with cataract surgery in japanese patients with glaucoma. Am J Ophthalmol 2004. [DOI: 10.1016/j.ajo.2004.06.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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