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1

Isolation and characterization of a cyanidin-catechin pigment from adzuki bean (Vigna angularis)

Takahama, Umeo, Yamauchi, Ryo, Hirota, Sachiko

Journal:

Year:

2013

Language:

english

File:

PDF, 982 KB

english, 2013

2

Procyanidins in rice cooked with adzuki bean and their contribution to the reduction of nitrite to nitric oxide ( • NO) in artificial gastric juice

Takahama, Umeo, Hirota, Sachiko, Morina, Filis

Journal:

International Journal of Food Sciences and Nutrition

Year:

2019

Language:

english

File:

PDF, 1.14 MB

english, 2019

3

Peroxidases in vacuoles of Vicia faba leaves

Umeo Takahama, Takeshi Egashira

Journal:

Year:

1991

Language:

english

File:

PDF, 629 KB

english, 1991

4

Hydrogen peroxide scavenging systems in vacuoles of mesophyll cells of Vicia faba

Journal:

Year:

1992

Language:

english

File:

PDF, 855 KB

english, 1992

5

Formation of an oxathiolone compound from rutin in acidic mixture of saliva and buckwheat dough: Possibility of its occurrence in the stomach

Umeo Takahama, Mariko Tanaka, Sachiko Hirota, Ryo Yamauchi

Journal:

Year:

2009

Language:

english

File:

PDF, 459 KB

english, 2009

6

Inhibition of xanthine oxidase activity by an oxathiolanone derivative of quercetin

Umeo Takahama, Yukiko Koga, Sachiko Hirota, Ryo Yamauchi

Journal:

Year:

2011

Language:

english

File:

PDF, 298 KB

english, 2011

7

Inhibition of lipoxygenase-dependent lipid peroxidation by quercetin: Mechanism of antioxidative function

Journal:

Year:

1985

Language:

english

File:

PDF, 437 KB

english, 1985

8

Enhancement of the peroxidase-dependent oxidation of dopa by components of Vicia leaves

Journal:

Year:

1997

Language:

english

File:

PDF, 452 KB

english, 1997

9

Oxidation of hydroxycinnamic acid and hydroxycinnamyl alcohol derivatives by laccase and peroxidase. Interactions among p-hydroxyphenyl, guaiacyl and syringyl groups during the oxidation reactions

Journal:

Physiologia Plantarum

Year:

1995

File:

PDF, 503 KB

1995

10

Hydroxycinnamic acid esters enhance peroxidase-dependent oxidation of 3, 4-dihydroxyphenylalanine. differences in the enhancement among the esters

Umeo Takahama, Kunijiro Yoshitama

Journal:

Journal of Plant Research

Year:

1998

Language:

english

File:

PDF, 332 KB

english, 1998

11

3, 4-Dihydroxyphenylalanine is oxidized by phenoxyl radicals of hydroxycinnamic acid esters in leaves ofVicia fabaL

Umeo Takahama, Takayuki Oniki

Journal:

Journal of Plant Research

Year:

1998

Language:

english

File:

PDF, 723 KB

english, 1998

12

Flavonoids and Some Other Phenolics as Substrates of Peroxidase: Physiological Significance of the Redox Reactions

Umeo Takahama, Takayuki Oniki

Journal:

Journal of Plant Research

Year:

2000

Language:

english

File:

PDF, 950 KB

english, 2000

13

Phenolic Components of Brown Scales of Onion Bulbs Produce Hydrogen Peroxide by Autooxidation

Umeo Takahama, Takayuki Oniki, Sachiko Hirota

Journal:

Journal of Plant Research

Year:

2001

Language:

english

File:

PDF, 693 KB

english, 2001

14

Free radicals produced by the oxidation of gallic acid and catechin derivatives

Takayuki Oniki, Umeo Takahama

Journal:

Journal of Wood Science

Year:

2004

Language:

english

File:

PDF, 214 KB

english, 2004

15

Proanthocyanidins in Buckwheat Flour Can Reduce Salivary Nitrite to Nitric Oxide in the Stomach

Umeo Takahama, Mariko Tanaka, Sachiko Hirota

Journal:

Plant Foods for Human Nutrition

Year:

2010

Language:

english

File:

PDF, 375 KB

english, 2010

16

Changes in peroxidase activity and in peroxidase isozymes in carrot callus

Kunimitsu Wakamatsu, Umeo Takahama

Journal:

Physiologia Plantarum

Year:

1993

Language:

english

File:

PDF, 452 KB

english, 1993

17

Redox state of ascorbic acid in the apoplast of stems of Kalanchoë daigremontiana

Journal:

Physiologia Plantarum

Year:

1993

Language:

english

File:

PDF, 11.92 MB

english, 1993

18

Effects of fusicoccin and indole-3-acetic acid on the levels of ascorbic acid and dehydroascorbic acid in the apoplast during elongation of epicotyl segments of Vigna angularis

Journal:

Physiologia Plantarum

Year:

1996

Language:

english

File:

PDF, 4.43 MB

english, 1996

19

A peroxidase/phenolics/ascorbate system can scavenge hydrogen peroxide in plant cells

Umeo Takahama, Takayuki Oniki

Journal:

Physiologia Plantarum

Year:

1997

Language:

english

File:

PDF, 9.24 MB

english, 1997

20

Nitration of the salivary component 4-hydroxyphenylacetic acid in the human oral cavity: enhancement of nitration under acidic conditions

Umeo Takahama, Hitoshi Imamura, Sachiko Hirota

Journal:

European Journal of Oral Sciences

Year:

2009

Language:

english

File:

PDF, 237 KB

english, 2009

21

Oxidation of vacuolar and apoplastic phenolic substrates by peroxidase: Physiological significance of the oxidation reactions

Journal:

Phytochemistry Reviews

Year:

2004

Language:

english

File:

PDF, 256 KB

english, 2004

22

Quercetin-dependent scavenging of reactive nitrogen species derived from nitric oxide and nitrite in the human oral cavity: Interaction of quercetin with salivary redox components

Umeo Takahama, Sachiko Hirota, Takayuki Oniki

Journal:

Archives of Oral Biology

Year:

2006

Language:

english

File:

PDF, 306 KB

english, 2006

23

Determination of salivary peroxidase activity in human mixed whole saliva

Takahiro Nishioka, Kenshi Maki, Mitsutaka Kimura, Umeo Takahama

Journal:

Archives of Oral Biology

Year:

2003

Language:

english

File:

PDF, 103 KB

english, 2003

24

Human salivary peroxidase-catalyzed oxidation of nitrite and nitration of salivary components 4-hydroxyphenylacetic acid and proteins

Umeo Takahama, Sachiko Hirota, Takahiro Nishioka, Takayuki Oniki

Journal:

Archives of Oral Biology

Year:

2003

Language:

english

File:

PDF, 273 KB

english, 2003

25

INHIBITION OF RESPIRATION AND LOSS OF MEMBRANE INTEGRITY BY SINGLET OXYGEN GENERATED BY A PHOTOSENSITIZED REACTION IN NEUROSPORA CRASSA CONIDIA

Michiko Shimizu-Takahama, Takeshi Egashira, Umeo Takahama

Journal:

Photochemistry and Photobiology

Year:

1981

Language:

english

File:

PDF, 524 KB

english, 1981

26

SUPPRESSION OF LIPID PHOTOPEROXIDATION BY QUERCETIN AND ITS GLYCOSIDES IN SPINACH CHLOROPLASTS

Journal:

Photochemistry and Photobiology

Year:

1983

Language:

english

File:

PDF, 413 KB

english, 1983

27

PHOTOINACTIVATION OF A Chlamydomonas MUTANT(NL–11) IN THE PRESENCE OF METHIONINE: ROLES OF H2O2 and O-2

Umeo Takahama, Takeshi Egashira, Kazuo Nakamura

Journal:

Photochemistry and Photobiology

Year:

1985

Language:

english

File:

PDF, 384 KB

english, 1985

28

O2>-DEPENDENT and -INDEPENDENT PHOTOOXIDATION OF QUERCETIN IN THE PRESENCE and ABSENCE OF RIBOFLAVIN and EFFECTS OF ASCORBATE ON THE PHOTOOXIDATION

Journal:

Photochemistry and Photobiology

Year:

1985

Language:

english

File:

PDF, 295 KB

english, 1985

29

COOPERATION OF QUERCETIN WITH ASCORBATE IN THE PROTECTION OF PHOTOSENSITIZED LYSIS OF HUMAN ERYTHROCYTES IN THE PRESENCE OF HEMATOPORPHYRIN

Yasuhiro Sorata, Umeo Takahama, Mitsutaka Kimura

Journal:

Photochemistry and Photobiology

Year:

1988

Language:

english

File:

PDF, 429 KB

english, 1988

30

HYDROGEN PEROXIDE-DEPENDENT GENERATION OF SINGLET MOLECULAR OXYGEN BY HUMAN SALIVA: ITS DETECTION BY CHEMILUMINESCENCE FROM A Cypridina LUCIFERIN ANALOG

Journal:

Photochemistry and Photobiology

Year:

1993

Language:

english

File:

PDF, 336 KB

english, 1993

31

Quercetin-Dependent Inhibition of Nitration Induced by Peroxidase/H2O2/Nitrite Systems in Human Saliva and Characterization of an Oxidation Product of Quercetin Formed during the Inhibition

Hirota, Sachiko, Takahama, Umeo, Ly, Tram Ngoc, Yamauchi, Ryo

Journal:

Journal of Agricultural and Food Chemistry

Year:

2005

Language:

english

File:

PDF, 157 KB

english, 2005

32

Temperature-jump-induced release of hydrogen ions from chloroplasts and its relaxation characteristics in the presence of ionophores

Umeo Takahama, Michiko Shimizu, Mitsuo Nishimura

Journal:

Biochimica et Biophysica Acta (BBA) - Bioenergetics

Year:

1976

Language:

english

File:

PDF, 261 KB

english, 1976

33

Inhibition of photooxidation of α-tocopherol by quercetin in human blood cell membranes in the presence of hematoporphyrin as a photosensitizer

Chia-Yi Jan, Umeo Takahama, Mitsutaka Kimura

Journal:

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism

Year:

1991

Language:

english

File:

PDF, 747 KB

english, 1991

34

Transformation of ethyl alcohol to ethyl nitrite in acidified saliva: Possibility of its occurrence in the stomach

Umeo Takahama, Mariko Tanaka, Sachiko Hirota

Journal:

Archives of Biochemistry and Biophysics

Year:

2008

Language:

english

File:

PDF, 375 KB

english, 2008

35

Salivary thiocyanate/nitrite inhibits hydroxylation of 2-hydroxybenzoic acid induced by hydrogen peroxide/Fe(II) systems under acidic conditions: possibility of thiocyanate/nitrite-dependent scavenging of hydroxyl radical in the stomach

Umeo Takahama, Takayuki Oniki

Journal:

Biochimica et Biophysica Acta (BBA) - General Subjects

Year:

2004

Language:

english

File:

PDF, 310 KB

english, 2004

36

P44. Effects of pH on nitrite-induced transformation of a diaminofluorescein to its triazole form in bacterial fraction of human saliva

Umeo Takahama, Sachiko Hirota

Journal:

Year:

2008

Language:

english

File:

PDF, 39 KB

english, 2008

37

The presence of 4-hydroxyphenylacetic acid in human saliva and the possibility of its nitration by salivary nitrite in the stomach

Umeo Takahama, Takayuki Oniki, Hideaki Murata

Journal:

Year:

2002

Language:

english

File:

PDF, 95 KB

english, 2002

38

Oxygen uptake during the mixing of saliva with ascorbic acid under acidic conditions: possibility of its occurrence in the stomach

Umeo Takahama, Sachiko Hirota, Ayumi Yamamoto, Takayuki Oniki

Journal:

Year:

2003

Language:

english

File:

PDF, 127 KB

english, 2003

39

Interaction between Ascorbic Acid and Chlorogenic Acid during the Formation of Nitric Oxide in Acidified Saliva

Takahama, Umeo, Tanaka, Mariko, Hirota, Sachiko

Journal:

Journal of Agricultural and Food Chemistry

Year:

2008

Language:

english

File:

PDF, 362 KB

english, 2008

40

Enhancement of Iron(II)-Dependent Reduction of Nitrite to Nitric Oxide by Thiocyanate and Accumulation of Iron(II)/Thiocyanate/Nitric Oxide Complex under Conditions Simulating the Mixture of Saliva and Gastric Juice

Takahama, Umeo, Hirota, Sachiko

Journal:

Chemical Research in Toxicology

Year:

2012

Language:

english

File:

PDF, 1.26 MB

english, 2012

41

Spectrophotometric study on the oxidation of rutin by horseradish peroxidase and characteristics of the oxidized products

Journal:

Biochimica et Biophysica Acta (BBA) - General Subjects

Year:

1986

Language:

english

File:

PDF, 494 KB

english, 1986

42

Oxidation of Quercetin by Salivary Components. Quercetin-Dependent Reduction of Salivary Nitrite under Acidic Conditions Producing Nitric Oxide

Takahama, Umeo, Oniki, Takayuki, Hirota, Sachiko

Journal:

Journal of Agricultural and Food Chemistry

Year:

2002

Language:

english

File:

PDF, 94 KB

english, 2002

43

Effects of pH on nitrite-induced formation of reactive nitrogen oxide species and their scavenging by phenolic antioxidants in human oral cavity

Takahama, Umeo, Hirota, Sachiko, Kawagishi, Shigenori

Journal:

Free Radical Research

Year:

2009

Language:

english

File:

PDF, 340 KB

english, 2009

44

Effects of starch on nitrous acid-induced oxidation of kaempferol and inhibition of α-amylase-catalysed digestion of starch by kaempferol under conditions simulating the stomach and the intestine

Takahama, Umeo, Hirota, Sachiko

Journal:

Year:

2013

Language:

english

File:

PDF, 1.33 MB

english, 2013

45

[Advances in Molecular Toxicology] Volume 7 || Nitrogen Oxides Toxicology of the Aerodigestive Tract

Year:

2013

Language:

english

File:

PDF, 1.64 MB

english, 2013

46

Tissue and Spatial Distribution of Flavonol and Peroxidase in Onion Bulbs and Stability of Flavonol Glucosides during Boiling of the Scales

Hirota, Sachiko, Shimoda, Taeko, Takahama, Umeo

Journal:

Journal of Agricultural and Food Chemistry

Year:

1998

Language:

english

File:

PDF, 73 KB

english, 1998

47

Interactions of starch with a cyanidin–catechin pigment (vignacyanidin) isolated from Vigna angularis bean

Takahama, Umeo, Yamauchi, Ryo, Hirota, Sachiko

Journal:

Year:

2013

Language:

english

File:

PDF, 851 KB

english, 2013

48

Interactions between (+)-Catechin and Quercetin during Their Oxidation by Nitrite under the Conditions Simulating the Stomach

Veljovic-Jovanovic, Sonja, Morina, Filis, Yamauchi, Ryo, Hirota, Sachiko, Takahama, Umeo

Journal:

Journal of Agricultural and Food Chemistry

Year:

2014

Language:

english

File:

PDF, 1.32 MB

english, 2014

49

Nitrogen Dioxide-Dependent Oxidation of Uric Acid in the Human Oral Cavity under Acidic Conditions: Implications for Its Occurrence in Acidic Dental Plaque

Takahama, Umeo, Hirota, Sachiko

Journal:

Chemical Research in Toxicology

Year:

2010

Language:

english

File:

PDF, 326 KB

english, 2010

50

Thiocyanate Cannot Inhibit the Formation of Reactive Nitrogen Species in the Human Oral Cavity in the Presence of High Concentrations of Nitrite: Detection of Reactive Nitrogen Species with 4,5-Diaminofluorescein

Takahama, Umeo, Hirota, Sachiko, Oniki, Takayuki

Journal:

Chemical Research in Toxicology

Year:

2006

Language:

english

File:

PDF, 148 KB

english, 2006