Research Topics
| T OkuraSummaryAffiliation: Ehime University Country: Japan Publications
| Collaborators
|
Detail Information
Publications
Troglitazone induces apoptosis via the p53 and Gadd45 pathway in vascular smooth muscle cellsT Okura
The Second Department of Internal Medicine, Ehime University School of Medicine, Onsen gun, Ehime 791 0295, Japan
Eur J Pharmacol 407:227-35. 2000..These results strongly suggest that troglitazone can induce vascular smooth muscle cell apoptosis and that this effect is caused primarily by activation of the p53 and Gadd45 pathway but not by PPARgamma activation...
Relationship between cardio-ankle vascular index (CAVI) and carotid atherosclerosis in patients with essential hypertensionTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon, Japan
Hypertens Res 30:335-40. 2007..492, r<0.0001) were independent determinants of CAVI. These results suggest that CAVI is a useful clinical marker for evaluating atherosclerosis and arteriolosclerosis in patients with essential hypertension...
Intrarenal and carotid hemodynamics in patients with essential hypertensionTakafumi Okura
The Second Department of Internal Medicine, Ehime University School of Medicine, Onsen gun, Ehime 791 0295, Japan
Am J Hypertens 17:240-4. 2004..In the present study, we evaluated intrarenal PI and RI in patients with essential hypertension...
Renal resistance index is a marker of future renal dysfunction in patients with essential hypertensionTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon City, Ehime Japan
J Nephrol 23:175-80. 2010..Cystatin C is has been reported to be related to TOD in EHT. The aim of the present study was to clarify whether the RI predicts future renal function assessed by cystatin C levels in EHT...
Elevated serum uric acid is an independent predictor for cardiovascular events in patients with severe coronary artery stenosis: subanalysis of the Japanese Coronary Artery Disease (JCAD) StudyTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Japan
Circ J 73:885-91. 2009..The association of elevated serum uric acid (UA) with cardiovascular events in patients with severe coronary artery stenosis was examined...
Case of membranoproliferative glomerulonephritis due to essential cryoglobulinemia without hepatitis C virus infectionTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon City, Ehime, Japan
Geriatr Gerontol Int 9:92-6. 2009..He was finally diagnosed with MPGN due to mixed cryoglobulinemia type II. MPGN with essential cryoglobulinemia type II without evidence of hepatitis C virus infection, like that found in the present case, is very rare...
Light chain deposition disease developing 15 years following the diagnosis of monoclonal gammopathy of undetermined significanceTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon, Japan
Intern Med 48:101-4. 2009..These findings confirmed a diagnosis of light chain deposit disease (LCDD) with MGUS. The development of LCDD in patients with MGUS for fifteen years is very rare...
Long-term effects of angiotensin II receptor blockade with valsartan on carotid arterial stiffness and hemodynamic alterations in patients with essential hypertensionTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
Clin Exp Hypertens 30:415-22. 2008..These results suggest that long-term treatment with valsartan improves vascular wall function and hemodynamics in patients with essential hypertension...
A case of hyperreninemic hypertension with bilateral positive captopril renography but without renovascular stenosisTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon, Japan
Hypertens Res 31:383-6. 2008....
Coexistence of three distinct adrenal tumors in the same adrenal gland in a patient with primary aldosteronism and preclinical Cushing's syndromeTakafumi Okura
The Second Department of Internal Medicine, Ehime University School of Medicine, Toon, Ehime 791 0295, Japan
Clin Exp Nephrol 10:127-30. 2006..Clinically and pathophysiologically, this was a very rare case...
Inhibition of matrix metalloproteinase and hypertensionTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon, Japan
Hypertens Res 30:477-8. 2007
Undercarboxylated osteocalcin is a biomarker of carotid calcification in patients with essential hypertensionTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon City, Japan
Kidney Blood Press Res 33:66-71. 2010..Serum ucOC was an independent determinant of carotid calcification, suggesting that circulating ucOC may be an important biomarker of carotid artery calcification...
Association between cystatin C and inflammation in patients with essential hypertensionTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon, Ehime 791 0295, Japan
Clin Exp Nephrol 14:584-8. 2010..It is known that the initiation and progression of these cardiovascular events contributes to renal dysfunction and chronic inflammation. In this study, we investigated the relationship between cystatin C and proinflammatory cytokines...
Giant unruptured aneurysm of the thoracic aorta--a case reportT Okura
The Second Department of Internal Medicine, Ehime University School of Medicine, Japan
Angiology 50:865-9. 1999..Retrospectively, the natural progression of the aneurysm was able to be followed on a series of chest x-ray films obtained over 18 years...
A patient with myeloperoxidase antineutrophil cytoplasmic antibody-positive polyangiitis who developed sensorineural hearing loss and scleritisTakafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Japan
Intern Med 50:1725-8. 2011..She was diagnosed with MPO-ANCA-associated polyangiitis. ANCA-related polyangiitis should be considered in the differential diagnosis of sudden deafness or scleritis...
Platelet-derived growth factor induces apoptosis in vascular smooth muscle cells: roles of the Bcl-2 familyT Okura
Second Department of Internal Medicine, Ehime University School of Medicine, Onsen gun, Ehime 791 0295, Japan
Biochim Biophys Acta 1403:245-53. 1998..PDGF-BB treatment reduced bcl-2 mRNA and bcl-xl mRNA expression, in contrast, induced bcl-xs mRNA expression, linked with the induction of apoptosis in cultured VSMC...
Peroxisome proliferator-activated receptor-gamma activation inhibits interleukin-1beta -mediated platelet-derived growth factor-alpha receptor gene expression via CCAAT/enhancer-binding protein-delta in vascular smooth muscle cellsY Takata
Second Department of Internal Medicine, Ehime University School of Medicine, Ehime 791-0295, Japan
J Biol Chem 276:12893-7. 2001..Regulation of C/EBPdelta by PPARgamma activators probably plays critical roles in modulating inflammatory responses in the arterial wall...
Valsartan reduces serum cystatin C and the renal vascular resistance in patients with essential hypertensionSanae Watanabe
The Second Department of Internal Medicine, Ehime University School of Medicine, Toon City, Ehime, Japan
Clin Exp Hypertens 28:451-61. 2006....
Role of GADD153 (growth arrest- and DNA damage-inducible gene 153) in vascular smooth muscle cell apoptosisM Igase
Second Department of Internal Medicine, Ehime University School of Medicine, Onsen-gun, Ehime 791-0295, Japan
Clin Sci (Lond) 100:275-81. 2001..These results demonstrate an important role for GADD153 in the molecular mechanisms of VSMC apoptosis...
Postprandial hypotension is associated with asymptomatic cerebrovascular damage in essential hypertensive patientsK Kohara
Department of Geriatric Medicine, Ehime University School of Medicine, Onsen gun
Hypertension 33:565-8. 1999..1+/-0.7, respectively (F[2,67]=4.3, P<0.05). These findings indicate that elderly hypertensive patients with marked PPH should be considered to have advanced cerebrovascular damage even in the absence of abnormal neurological findings...
Molecular structure and function of rat platelet-derived growth factor beta-receptor gene promoterY Kitami
The Second Department of Internal Medicine, Ehime University School of Medicine, Japan
J Hypertens 16:437-45. 1998..To understand the regulatory mechanism of platelet-derived growth factor beta-receptor gene expression...
Postprandial hypotension: evaluation by ambulatory blood pressure monitoringK Kohara
Department of Geriatric Medicine, Ehime University School of Medicine, Onsen gun, Japan
Am J Hypertens 11:1358-63. 1998..36, P < .001). These findings indicate that PPH increases blood pressure variability independently of nocturnal change in blood pressure...
Asymptomatic cerebrovascular damages in essential hypertension in the elderlyK Kohara
Second Department of Internal Medicine, Ehime University School of Medicine, Japan
Am J Hypertens 10:829-35. 1997..A different approach to the treatment of hypertension in the elderly appears necessary...
Nuclear factor 1 is a negative regulator of gadd153 gene expression in vascular smooth muscle cellsM Nakamura
Second Department of Internal Medicine, Ehime University School of Medicine, Ehime, Japan
Hypertension 37:419-24. 2001..These results suggest that gadd153 gene expression in VSMCs is negatively regulated by an NF1-binding motif, and NF1 may act as an antiapoptotic factor by continuously suppressing gadd153 gene expression in growing VSMCs...
Coronary spastic angina induced by anticholinesterase medication for myasthenia gravis--a case reportM Suzuki
Second Department of Internal Medicine, Ehime University School of Medicine, Onsen gun, Japan
Angiology 51:1031-4. 2000..The appearance of coronary spastic angina in the present case is likely mediated through the increase of acethylcholine by anticholinesterase medication...
Targeted overexpression of CCAAT/enhancer-binding protein-delta evokes enhanced gene transcription of platelet-derived growth factor alpha-receptor in vascular smooth muscle cellsZ H Yang
Second Department of Internal Medicine, Ehime University School of Medicine, Ehime, Japan
Circ Res 89:503-8. 2001..The results obtained reveal evidence of a new role and new functional significance of C/EBP-delta on VSMC growth via the PDGFalphaR during the process of vascular remodeling and atherosclerosis...
Angiotensin II receptor blockade with valsartan decreases plasma osteopontin levels in patients with essential hypertensionM Kurata
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, Japan
J Hum Hypertens 25:334-9. 2011..332, P=0.026; ln CRP reduction: β=0.366, P=0.015). These results suggest that suppression of the RAAS and inflammation may decrease plasma OPN levels...
Osteopontin and carotid atherosclerosis in patients with essential hypertensionMie Kurata
The Second Department of Internal Medicine, Ehime University School of Medicine, Shitsukawa, Toon City, Ehime, 791-0295, Japan
Clin Sci (Lond) 111:319-24. 2006..These results suggest that OPN plays a role in the development of atherosclerosis and may be a potential clinical marker for the prediction of atherosclerosis in patients with EHT...
[Mild hypertension in middle aged adults]Takafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine
Nihon Rinsho 66:1481-5. 2008..Early therapeutic intervention including life style modification is needed to prevent the sustained mild hypertension...
Association between carotid haemodynamics and inflammation in patients with essential hypertensionS Manabe
The Second Department of Internal Medicine, Ehime University School of Medicine, Toon City, Ehime, Japan
J Hum Hypertens 19:787-91. 2005..These results suggested that carotid haemodynamic parameters such as PI and RI are associated with atherosclerosis and inflammation in hypertensive patients...
Hyperresistinemia is associated with coexistence of hypertension and type 2 diabetesYasunori Takata
Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Toon, Ehime 791 0295, Japan
Hypertension 51:534-9. 2008..These results suggest that hyperresistinemia would contribute to the pathogenesis of hypertension in patients with T2DM, significantly linked to vascular complications and cardiovascular events...
Effects of angiotensin II receptor blockade with valsartan on pro-inflammatory cytokines in patients with essential hypertensionSeiko Manabe
Second Department of Internal Medicine, National University Corporation, Ehime University, Toon City, Ehime, Japan
J Cardiovasc Pharmacol 46:735-9. 2005..However, C-reactive protein and serum amyloid A did not change. The angiotensin II receptor blocker, valsartan, may inhibit the development of atherosclerosis by lowering serum pro-inflammatory cytokines...
Carotid hemodynamic alterations in hypertensive patients with insulin resistanceSanae Watanabe
The Second Department of Internal Medicine, Ehime University School of Medicine, Japan
Am J Hypertens 15:851-6. 2002..CONCLUSIONS: Decreased distensibility of the arterial wall and ensuing low diastolic perfusion are possible mechanisms of atherosclerotic changes in the CCA in EHT patients with IR...
Soluble Fas ligand and atherosclerosis in hypertensive patientsTakafumi Okura
Second Department of Internal Medicine, Ehime University School of Medicine, Onsen-gen, Ehime, Japan
J Hypertens 20:895-8. 2002..316, P = 0.030). CONCLUSIONS : These results indicated that serum sFasL concentration is associated with atherosclerosis and inflammatory disease, in patients with hypertension...
Serum cystatin C level is a marker of end-organ damage in patients with essential hypertensionSanae Watanabe
Second Department of Internal Medicine, Ehime University School of Medicine, Ehime, Japan
Hypertens Res 26:895-9. 2003..The present study was the first to demonstrate that s-CC level is a useful and convenient parameter of renal function, and may also prove to be an early marker of the severity of end-organ damage in patients with essential hypertension...
Association between carotid hemodynamics and asymptomatic white and gray matter lesions in patients with essential hypertensionMie Kurata
Second Department of Internal Medicine, Ehime University School of Medicine, Toon, Japan
Hypertens Res 28:797-803. 2005..418, p=0.0038). Carotid structure and hemodynamics are potentially related to asymptomatic lesions in the cerebrum, and might be predictors of future cerebral vascular events in patients with EHT...
[VALUE]Takafumi Okura
Second Department of Internal Medicine, Ehime University School of Medicine
Nippon Rinsho 64:419-24. 2006
[A case of "pure" progressive autonomic failure in an elderly male]T Kuwahara
Second Department of Internal Medicine, Ehime University School of Medicine
Nihon Ronen Igakkai Zasshi 29:790-3. 1992..It shows symptoms of autonomic failure without other neurological disturbances which manifest as Shy-Drager syndrome. Treatment with L-DOPS increased his blood pressure level and attenuated his symptoms due to orthostatic hypotension...
Hypoglycemic syncope induced by a combination of cibenzoline and angiotensin converting enzyme inhibitorA Ogimoto
Second Department of Internal Medicine, Ehime University School of Medcine, Japan
Jpn Heart J 42:255-9. 2001..Therefore, the possibility of a hypoglycemic attack associated with these drugs should be explained to patients who are in poor condition...
Plasma osteopontin levels are higher in patients with primary aldosteronism than in patients with essential hypertensionJun Irita
The Second Department of Internal Medicine, Ehime University School of Medicine, Shitsukawa, Toon City, Ehime, Japan
Am J Hypertens 19:293-7. 2006..0001). There was no relationship between BP and plasma OPN levels in patients with PA. CONCLUSIONS: The present study showed that plasma OPN levels were higher in patients with PA than in patients with EHT...
[Calcium antagonists: current and future applications based on new evidence. Calcium channel blockers and single-pill combination]Takafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Japan
Clin Calcium 20:61-8. 2010..Hypertensive patients are also sometimes combined with dyslipidemia. In these reasons, a single pill combination of CCB and ARB or statin play an important role in hypertensive and anti-atherosclerotic therapy...
Attenuation of biventricular pressure gradients by cibenzo-line in an 18-year-old patient with hypertrophic obstructive cardiomyopathyGo Hiasa
The Second Department of Internal Medicine, Ehime University School of Medicine, Japan
Circ J 66:1173-5. 2002..He was then given 300 mg daily of cibenzoline, and both pressure gradients remained low without any complications 8 months later at the time of discharge...
Osteopontin deficiency protects against aldosterone-induced inflammation, oxidative stress, and interstitial fibrosis in the kidneyJun Irita
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
Am J Physiol Renal Physiol 301:F833-44. 2011....
The effect of losartan and amlodipine on serum adiponectin in Japanese adults with essential hypertensionSanae Watanabe
Department of Integrated Medicine and Informatics, Ehime Graduate School of Medicine, Ehime, Japan
Clin Ther 28:1677-85. 2006..3 [1.4] to 14.5 [1.7] pg/mL, respectively). CONCLUSION: In this study, Japanese adults with EHT had significant increases in adiponectin after 3 months of treatment with 50 to 100 mg/d of losartan, but not with 5 to 10 mg/d of amlodipine...
[Gene mutation and polymorphism as risk factors in the development of hypertensive organ damage]Takafumi Okura
Second Department of Internal Medicine, Ehime University School of Medicine
Nippon Rinsho 62:92-7. 2004
CCAAT/enhancer-binding protein-delta is induced in mesangial area during the early stages of anti-Thy1.1 glomerulonephritis and regulates cell proliferation and inflammatory gene expression in cultured rat mesangial cellsKen ichi Miyoshi
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791 0295, Japan
Clin Exp Nephrol 11:26-33. 2007..The promoter regions of these genes contain CCAAT/enhancer-binding protein (C/EBP)-binding sites. In this study, we investigated the role of C/EBP-delta in mesangial cells (MCs)...
Mechanism of oxidative stress-induced GADD153 gene expression in vascular smooth muscle cellsJia rong Tang
Second Department of Internal Medicine, Ehime University School of Medicine, Onsen gun, Ehime, 791 0295, Japan
Biochem Biophys Res Commun 290:1255-9. 2002..These results revealed that induction of the GADD153 gene by oxidative stress is regulated mainly by two nuclear factors, NF1 and AP-1...
[Combination therapy of ARB with other class of antihypertensive agents (including fixed combination)]Takafumi Okura
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine
Nihon Rinsho 67:819-25. 2009..In near future, we may be able to use many fixed-dose combination antihypertensive agents, ARB with diuretics or CCB...
Granulomatous interstitial nephritis due to isolated renal sarcoidosisKen-ichi Miyoshi
Second Department of Internal Medicine, Ehime University School of Medicine, Shitsukawa, Shigenobu-cho, Onsen-gun, Ehime 791-0295, Japan
Clin Exp Nephrol 8:279-82. 2004..It is important to consider renal sarcoidosis as a differential diagnosis in patients with severely progressive renal failure, because corticosteroid therapy is very effective...
[Repeated changes of electrocardiogram caused by Takotsubo-type cardiomyopathy: a case with hypertrophic nonobstructive cardiomyopathy]Seigo Miyoshi
Second Department of Internal Medicine, Ehime University School of Medicine
Nippon Ronen Igakkai Zasshi 42:112-5. 2005..After five months, ECG showed an improvement of the QT interval and a decrease in the negative T-wave. We considered that the repeated changes of ECG were caused by Takotsubo-type cardiomyopathy...
[A 73-year-old man with primary pulmonary hypertension]Tamami Kono
The Second Department of Internal Medicine, Ehime University School of Medicine
Nippon Ronen Igakkai Zasshi 42:116-20. 2005..Because there was no apparent etiology of pulmonary hypertension, primary pulmonary hypertension was diagnosed and appropriate conventional therapy was started...
Fibrillary glomerulonephritis associated with monoclonal gammopathy of undetermined significance showing lambda-type Bence Jones proteinTomoaki Nagao
Second Department of Internal Medicine, Ehime University School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
Clin Exp Nephrol 9:247-51. 2005..A Congo red stain for amyloid was negative. These findings corresponded with the diagnosis of fibrillary glomerulonephritis. Therefore, this case showed a rare combination of fibrillary glomerulonephritis and MGUS...
Osteopontin in rat renal fibroblasts: functional properties and transcriptional regulation by aldosteroneJun Irita
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791 0295, Japan
Hypertension 51:507-13. 2008..These results indicate that aldosterone induced MR-mediated OPN expression through AP-1 and NF kappaB activation and suggest that aldosterone plays an important role in renal fibrosis through the induction of OPN...
[Case of 131I-meta-iodobenzylguanidine (MIBG) scintigraphy-negative and 2-[18F]-fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET)-positive pheochromocytoma]Masanori Jotoku
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Ehime, Japan
Nihon Jinzo Gakkai Shi 51:563-8. 2009..However, FDG-PET may be useful for detecting local recurrence or distant metastasis, in patients with MIBG-negative pheochromocytoma...
Exercise-related syncope induced by vasodilator therapy in an elderly hypertensive patientAkiyoshi Ogimoto
J Am Geriatr Soc 53:351-2. 2005
C-reactive protein induces apoptosis in human coronary vascular smooth muscle cellsFlorian Blaschke
Division of Endocrinology, Diabetes, and Hypertension, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
Circulation 110:579-87. 2004....
[Etiology of essential hypertension]Takafumi Okura
Nippon Naika Gakkai Zasshi 96:4-8. 2007
