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List of works by Ryunosuke Ohkawa

A novel enzyme immunoassay for the determination of phosphatidylserine-specific phospholipase A1 in human serum samples

scientific article published on 11 April 2010

Analysis of serum and urinary lysophospholipase D/autotaxin in nephrotic syndrome

scientific article published on 01 January 2008

Analytical evaluation of plasma serotonin and sphingosine 1-phosphate and their clinical assessment in early atherosclerosis.

scientific article published in June 2012

Antagonism of sphingosine 1-phosphate receptor-2 enhances migration of neural progenitor cells toward an area of brain.

scientific article published on 28 August 2008

Autotaxin as a novel serum marker of liver fibrosis.

scientific article published on 17 March 2011

Autotaxin enzyme immunoassay in human cerebrospinal fluid samples

scientific article published on 03 May 2009

Autotaxin stabilizes blood vessels and is required for embryonic vasculature by producing lysophosphatidic acid.

scientific article published on 6 July 2006

Both Plasma Lysophosphatidic Acid and Serum Autotaxin Levels are Increased in Chronic Hepatitis C

scientific article published on 01 July 2007

Characterization of the cholesterol efflux of apolipoprotein E-containing high-density lipoprotein in THP-1 cells

scientific article published on 01 January 2019

Cholesterol Efflux Capacity of Apolipoprotein A-I Varies with the Extent of Differentiation and Foam Cell Formation of THP-1 Cells.

scientific article

Cholesterol transport between red blood cells and lipoproteins contributes to cholesterol metabolism in blood

scientific article published on 09 September 2020

Decrease in circulating autotaxin by oral administration of prednisolone

scientific article published on 9 October 2012

Decreased circulating lipoprotein-associated phospholipase A2 levels are associated with coronary plaque regression in patients with acute coronary syndrome

scientific article published on 17 September 2011

Detection of novel visible-light region absorbance peaks in the urine after alkalization in patients with alkaptonuria.

scientific article published on 23 January 2014

Development of an enzymatic assay for sphingomyelin with rapid and automatable performances: Analysis in healthy subjects and coronary heart disease patients

scientific article published on 20 July 2012

Difference in measurements of erythrocyte sedimentation rate obtained using two devices of the same model in a patient with marked leukocytosis

scientific article published on July 2014

Different origins of lysophospholipid mediators between coronary and peripheral arteries in acute coronary syndrome

scientific article published on 22 December 2016

ENPP2 Contributes to Adipose Tissue Expansion and Insulin Resistance in Diet-Induced Obesity

scientific article published on 26 June 2014

Effects of Myeloperoxidase-Induced Oxidation on Antiatherogenic Functions of High-Density Lipoprotein.

scientific article published on 14 July 2015

Effects of serum amyloid A on the structure and antioxidant ability of high-density lipoprotein.

scientific article published on 15 July 2016

Essential roles of sphingosine 1-phosphate/S1P1 receptor axis in the migration of neural stem cells toward a site of spinal cord injury.

scientific article published on 21 September 2006

Exosomes containing HIV protein Nef reorganize lipid rafts potentiating inflammatory response in bystander cells

scientific article published on 25 July 2019

High ubiquitous mitochondrial creatine kinase expression in hepatocellular carcinoma denotes a poor prognosis with highly malignant potential.

scientific article

High-Density Lipoprotein Binds to Mycobacterium avium and Affects the Infection of THP-1 Macrophages

scientific article published on 19 July 2016

Higher lipoprotein-associated phospholipase A2 levels are associated with coronary atherosclerosis documented by coronary angiography

scientific article published on 29 August 2012

Higher serum levels of autotaxin and phosphatidylserine-specific phospholipase A<sub>1</sub> in patients with lupus nephritis

scientific article published on 11 December 2020

Impact of fresh-frozen plasma from male-only donors versus mixed-sex donors on postoperative respiratory function in surgical patients: a prospective case-controlled study.

scientific article published on 16 July 2009

Increased activity of serum mitochondrial isoenzyme of creatine kinase in hepatocellular carcinoma patients predominantly with recurrence.

scientific article

Increased circulating plasma lysophosphatidic acid in patients with acute coronary syndrome

scientific article published on 29 September 2011

Increased lysophosphatidic acid levels in culprit coronary arteries of patients with acute coronary syndrome ⬇️

scientific article published on April 22, 2013

Increased plasma sphingosine-1-phosphate in obese individuals and its capacity to increase the expression of plasminogen activator inhibitor-1 in adipocytes.

scientific article published on December 2013

Increased serum autotaxin levels in hepatocellular carcinoma patients were caused by background liver fibrosis but not by carcinoma

scientific article published on 16 March 2014

Increased serum mitochondrial creatine kinase activity as a risk for hepatocarcinogenesis in chronic hepatitis C patients

scientific article

Inhibition of lysophosphatidic acid increase by prestorage whole blood leukoreduction in autologous CPDA-1 whole blood

scientific article published on 05 March 2013

LDL receptor and ApoE are involved in the clearance of ApoM-associated sphingosine 1-phosphate

scientific article published on 12 December 2014

Liver involvement in sphingosine 1-phosphate dynamism revealed by adenoviral hepatic overexpression of apolipoprotein M ⬇️

scientific article published on April 28, 2013

Lysophosphatidic acid protection against apoptosis in the human pre-B-cell line Nalm-6.

scientific article published on 5 April 2007

Lysophospholipase D activity exists in the urine to catalyse the formation of lysophosphatidic acid

scientific article published on 28 July 2006

Measurement of lysophospholipase D/autotaxin activity in human serum samples

scientific article published on 19 October 2006

Measurement of plasma choline in acute coronary syndrome: importance of suitable sampling conditions for this assay.

scientific article published on 16 March 2018

Measurement of plasma lysophosphatidic acid concentration in healthy subjects: strong correlation with lysophospholipase D activity.

scientific article published in July 2008

Necessity of lysophosphatidic acid receptor 1 for development of arthritis

scientific article published in August 2013

Plasma lysophosphatidic acid level and serum autotaxin activity are increased in liver injury in rats in relation to its severity

scientific article published on 19 August 2007

Plasma lysophosphatidic acid levels and hepatocellular carcinoma

scientific article published on 01 January 2013

Plasma sphingosine-1-phosphate measurement in healthy subjects: close correlation with red blood cell parameters.

scientific article published in July 2008

Platelet-derived sphingosine 1-phosphate induces migration of Jurkat T cells.

scientific article published on 25 September 2014

Possible involvement of minor lysophospholipids in the increase in plasma lysophosphatidic acid in acute coronary syndrome

scientific article

Possible involvement of sphingomyelin in the regulation of the plasma sphingosine 1-phosphate level in human subjects.

scientific article published on 8 April 2015

Prognostic impact of homocysteine levels and homocysteine thiolactonase activity on long-term clinical outcomes in patients undergoing percutaneous coronary intervention

scientific article

Red blood cells participate in reverse cholesterol transport by mediating cholesterol efflux of high-density lipoprotein and apolipoprotein A-I from THP-1 macrophages

scientific article published on 01 November 2019

Regulation of the lysophosphatidylserine and sphingosine 1-phosphate levels in autologous whole blood by the pre-storage leukocyte reduction.

scientific article published on 28 June 2016

Serum Autotaxin Levels Are Associated with Proteinuria and Kidney Lesions in Japanese Type 2 Diabetic Patients with Biopsy-proven Diabetic Nephropathy.

scientific article published on February 2016

Serum Autotaxin is not a Useful Biomarker for Ovarian Cancer

scientific article published on 15 June 2012

Serum amyloid A does not affect high-density lipoprotein cholesterol measurement by a homogeneous assay

scientific article published on 17 October 2018

Serum autotaxin measurement in haematological malignancies: a promising marker for follicular lymphoma.

scientific article published on 15 August 2008

Serum autotaxin measurements in pregnant women: application for the differentiation of normal pregnancy and pregnancy-induced hypertension.

scientific article published on 14 July 2011

Serum lysophospholipase D/autotaxin may be a new nutritional assessment marker: study on prostate cancer patients.

scientific article published in November 2007

Sphingolipids, possible biomarkers for atherosclerotic disorders

scientific article published in September 2013

Sphingosine 1-phosphate release from platelets during clot formation: close correlation between platelet count and serum sphingosine 1-phosphate concentration

scientific article

Sphingosine-1-phosphate receptor-2 deficiency leads to inhibition of macrophage proinflammatory activities and atherosclerosis in apoE-deficient mice

scientific article

Sphingosine-1-phosphate receptor-2 deficiency leads to inhibition of macrophage proinflammatory activities and atherosclerosis in apoE-deficient mice.

scientific article published in January 2012

Suppression of lysophosphatidic acid and lysophosphatidylcholine formation in the plasma in vitro: proposal of a plasma sample preparation method for laboratory testing of these lipids

scientific article published on 06 May 2007

Sustained delivery of sphingosine-1-phosphate using poly(lactic-co-glycolic acid)-based microparticles stimulates Akt/ERK-eNOS mediated angiogenesis and vascular maturation restoring blood flow in ischemic limbs of mice.

scientific article published on 3 March 2010

TNF-α production in NKT cell hybridoma is regulated by sphingosine-1-phosphate: implications for inflammation in atherosclerosis

scientific article published on June 2014

Unbalanced expression of sphingosine 1-phosphate receptors in diabetic nephropathy.

scientific article published on 3 March 2009

Usefulness of apolipoprotein B-depleted serum in cholesterol efflux capacity assays using immobilized liposome-bound gel beads

scientific article published on 02 April 2019

Validation of an autotaxin enzyme immunoassay in human serum samples and its application to hypoalbuminemia differentiation

scientific article published on 11 October 2007

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