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1

The neuromuscular blockade produced by pure alkaloid, mitragynine and methanol extract of kratom leaves (Mitragyna speciosa Korth.)

Somsmorn Chittrakarn, Niwat Keawpradub, Kitja Sawangjaroen, Supaporn Kansenalak, Benjamas Janchawee

Journal:

Journal of Ethnopharmacology

Year:

2010

Language:

english

File:

PDF, 1.04 MB

english, 2010

2

Study on glucose transport in muscle cells by extracts from Mitragyna speciosa (Korth) and mitragynine

Purintrapiban, Juntipa, Keawpradub, Niwat, Kansenalak, Supaporn, Chittrakarn, Somsmorn, Janchawee, Benjamas, Sawangjaroen, Kitja

Journal:

Natural Product Research

Year:

2011

Language:

english

File:

PDF, 302 KB

english, 2011

3

Mitragyna speciosa: Hairy Root Culture for Triterpenoid Production and High Yield of Mitragynine by Regenerated Plants

Phongprueksapattana, Siriwan, Putalun, Waraporn, Keawpradub, Niwat, Wungsintaweekul, Juraithip

Journal:

Zeitschrift für Naturforschung C

Year:

2008

Language:

english

File:

PDF, 284 KB

english, 2008

4

Inhibitory effects of kratom leaf extract (Mitragyna speciosa Korth.) on the rat gastrointestinal tract

Somsmorn Chittrakarn, Kitja Sawangjaroen, Supaporn Prasettho, Benjamas Janchawee, Niwat Keawpradub

Journal:

Journal of Ethnopharmacology

Year:

2008

Language:

english

File:

PDF, 404 KB

english, 2008

5

Effects of alkaloid-rich extract from Mitragyna speciosa (Korth.) Havil. on naloxone-precipitated morphine withdrawal symptoms and local field potential in the nucleus accumbens of mice

Cheaha, Dania, Reakkamnuan, Chayaporn, Nukitram, Jakkrit, Chittrakarn, Somsmorn, Phukpattaranont, Pimpimol, Keawpradub, Niwat, Kumarnsit, Ekkasit

Journal:

Journal of Ethnopharmacology

Year:

2017

Language:

english

File:

PDF, 2.37 MB

english, 2017

6

Effects of Mitragynine and a Crude Alkaloid Extract Derived from Mitragyna speciosa Korth. on Permethrin Elimination in Rats

Srichana, Kachamas, Janchawee, Benjamas, Prutipanlai, Sathaporn, Raungrut, Pritsana, Keawpradub, Niwat

Journal:

Year:

2015

Language:

english

File:

PDF, 1.34 MB

english, 2015

7

A high-performance liquid chromatographic method for determination of mitragynine in serum and its application to a pharmacokinetic study in rats

Benjamas Janchawee, Niwat Keawpradub, Somsmorn Chittrakarn, Supaporn Prasettho, Puchong Wararatananurak, Kitja Sawangjareon

Journal:

Biomedical Chromatography

Year:

2007

Language:

english

File:

PDF, 186 KB

english, 2007

8

Acute and long-term effects of alkaloid extract of Mitragyna speciosa on food and water intake and body weight in rats

Ekkasit Kumarnsit, Niwat Keawpradub, Watcharin Nuankaew

Journal:

Year:

2006

Language:

english

File:

PDF, 251 KB

english, 2006

9

Quantitative analysis of mitragynine, codeine, caffeine, chlorpheniramine and phenylephrine in a kratom (Mitragyna speciosa Korth.) cocktail using high-performance liquid chromatography

Somsmorn Chittrakarn, Pimpimol Penjamras, Niwat Keawpradub

Journal:

Forensic Science International

Year:

2012

Language:

english

File:

PDF, 635 KB

english, 2012

10

Methyl jasmonate and yeast extract stimulate mitragynine production inMitragyna speciosa(Roxb.) Korth. shoot culture

Juraithip Wungsintaweekul, Jutarat Choo-malee, Tossaton Charoonratana, Niwat Keawpradub

Journal:

Biotechnology Letters

Year:

2012

Language:

english

File:

PDF, 331 KB

english, 2012

11

Development of indirect competitive ELISA for quantification of mitragynine in Kratom (Mitragyna speciosa (Roxb.) Korth.)

Limsuwanchote, Supattra, Wungsintaweekul, Juraithip, Keawpradub, Niwat, Putalun, Waraporn, Morimoto, Satoshi, Tanaka, Hiroyuki

Journal:

Forensic Science International

Year:

2014

Language:

english

File:

PDF, 287 KB

english, 2014

12

Anti-mitragynine monoclonal antibody-based ELISA for determination of alkaloids in the kratom cocktail

Limsuwanchote, Supattra, Putalun, Waraporn, Keawpradub, Niwat, Tanaka, Hiroyuki, Morimoto, Satoshi, Wungsintaweekul, Juraithip

Journal:

Forensic Toxicology

Year:

2017

Language:

english

File:

PDF, 579 KB

english, 2017

13

Development of an immunochromatographic strip incorporating anti-mitragynine monoclonal antibody conjugated to colloidal gold for kratom alkaloids detection

Limsuwanchote, Supattra, Putalun, Waraporn, Tanaka, Hiroyuki, Morimoto, Satoshi, Keawpradub, Niwat, Wungsintaweekul, Juraithip

Journal:

Drug Testing and Analysis

Year:

2017

Language:

english

File:

PDF, 1.27 MB

english, 2017

14

Dioscorealides and Dioscoreanone, Novel Cytotoxic Naphthofuranoxepins, and 1,4-Phenanthraquinone from Dioscorea membranacea Pierre.

Arunporn Itharat, Anuchit Plubrukarn, Palangpon Kongsaeree, Tam Bui, Niwat Keawpradub, Peter J. Houghton

Journal:

Year:

2003

File:

PDF, 82 KB

2003

15

Indole alkaloids fromAlstonia glaucescens

Niwat Keawpradub, Hiromitsu Takayama, Norio Aimi, Shin-Ichiro Sakai

Journal:

Year:

1994

Language:

english

File:

PDF, 523 KB

english, 1994

16

Indole alkaloids from Alstonia macrophylla

Niwat Keawpradub, Peter J. Houghton

Journal:

Year:

1997

Language:

english

File:

PDF, 563 KB

english, 1997

17

Suppressive effects of dichloromethane fraction from the Areca catechu nut on naloxone-precipitated morphine withdrawal in mice

Ekkasit Kumarnsit, Niwat Keawpradub, Uraporn Vongvatcharanon, Kitja Sawangjaroen, Piyarat Govitrapong

Journal:

Year:

2005

Language:

english

File:

PDF, 139 KB

english, 2005

18

Effect of Mitragyna speciosa aqueous extract on ethanol withdrawal symptoms in mice

Ekkasit Kumarnsit, Niwat Keawpradub, Watcharin Nuankaew

Journal:

Year:

2007

Language:

english

File:

PDF, 175 KB

english, 2007

19

Fos-like immunoreactivity in rat dorsal raphe nuclei induced by alkaloid extract of Mitragyna speciosa

Ekkasit Kumarnsit, Uraporn Vongvatcharanon, Niwat Keawpradub, Pranom Intasaro

Journal:

Neuroscience Letters

Year:

2007

Language:

english

File:

PDF, 406 KB

english, 2007

20

Dioscorealides and Dioscoreanone, Novel Cytotoxic Naphthofuranoxepins, and 1,4-Phenanthraquinone from Dioscorea m embranacea Pierre

Itharat, Arunporn, Plubrukarn, Anuchit, Kongsaeree, Palangpon, Bui, Tam, Keawpradub, Niwat, Houghton, Peter J.

Journal:

Organic Letters

Year:

2003

Language:

english

File:

PDF, 79 KB

english, 2003

21

Antitubercular Sesterterpenes from the Thai Sponge Brachiaster sp.

Wonganuchitmeta, Saeng-ngam, Yuenyongsawad, Supreeya, Keawpradub, Niwat, Plubrukarn, Anuchit

Journal:

Journal of Natural Products

Year:

2004

Language:

english

File:

PDF, 58 KB

english, 2004

22

Antiplasmodial Activity of Extracts and Alkaloids of Three Alstonia Species from Thailand

Keawpradub, Niwat, Kirby, G. C., Steele, J. C. P., Houghton, P. J.

Journal:

Year:

1999

Language:

english

File:

PDF, 223 KB

english, 1999

23

Cytotoxic Activity of Indole Alkaloids from Alstonia macrophylla

Keawpradub, Niwat, Eno-Amooquaye, E., Burke, P. J., Houghton, P. J.

Journal:

Year:

1999

Language:

english

File:

PDF, 140 KB

english, 1999

24

Free Radical Scavenging and Cytoprotective Activity of Salacia Euphlebia Merr

Subhadhirasakul, Sanan, Keawpradub, Niwat, Promwong, Charuporn, Yuenyongsawad, Supreeya

Journal:

Natural Product Communications

Year:

2008

Language:

english

File:

PDF, 68 KB

english, 2008

25

Free Radical Scavenging and Cytoprotective Activity of Salacia Euphlebia Merr

Subhadhirasakul, Sanan, Keawpradub, Niwat, Promwong, Charuporn, Yuenyongsawad, Supreeya

Journal:

Natural Product Communications

Year:

2008

File:

PDF, 68 KB

2008

26

Simultaneous Determination of Abused Prescription Drugs by Simple Dilute-and-Shoot Gas Chromatography â Flame Ionization Detection (GC-FID)

Phonchai, Apichai, Pinsrithong, Sakchaibordee, Janchawee, Benjamas, Prutipanlai, Sathaporn, Botpiboon, Ornchuma, Keawpradub, Niwat

Journal:

Analytical Letters

Year:

2020

File:

PDF, 1.42 MB

2020