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Items: 1 to 20 of 26

1.

Mitragynine (Kratom) impairs spatial learning and hippocampal synaptic transmission in rats.

Hassan Z, Suhaimi FW, Ramanathan S, Ling KH, Effendy MA, Müller CP, Dringenberg HC.

J Psychopharmacol. 2019 Jul;33(7):908-918. doi: 10.1177/0269881119844186. Epub 2019 May 13.

PMID:
31081443
2.

Simultaneous quantification of ten key Kratom alkaloids in Mitragyna speciosa leaf extracts and commercial products by ultra-performance liquid chromatography-tandem mass spectrometry.

Sharma A, Kamble SH, León F, Chear NJ, King TI, Berthold EC, Ramanathan S, McCurdy CR, Avery BA.

Drug Test Anal. 2019 Aug;11(8):1162-1171. doi: 10.1002/dta.2604. Epub 2019 May 15.

PMID:
30997725
3.

Clitoria ternatea L. root extract ameliorated the cognitive and hippocampal long-term potentiation deficits induced by chronic cerebral hypoperfusion in the rat.

Damodaran T, Tan BWL, Liao P, Ramanathan S, Lim GK, Hassan Z.

J Ethnopharmacol. 2018 Oct 5;224:381-390. doi: 10.1016/j.jep.2018.06.020. Epub 2018 Jun 18.

PMID:
29920356
4.

Intestinal permeability of mitragynine in rats using in situ absorption model.

Jagabalan JDY, Murugaiyah V, Zainal H, Mansor SM, Ramanathan S.

J Asian Nat Prod Res. 2019 Apr;21(4):351-363. doi: 10.1080/10286020.2018.1461088. Epub 2018 Apr 18.

PMID:
29667422
5.

Severity of Pain and Sleep Problems during Kratom (Mitragyna speciosa Korth.) Cessation among Regular Kratom Users.

Singh D, Narayanan S, Vicknasingam BK, Prozialeck WC, Ramanathan S, Zainal H, Harun SN.

J Psychoactive Drugs. 2018 Jul-Aug;50(3):266-274. doi: 10.1080/02791072.2018.1443234. Epub 2018 Mar 20.

PMID:
29558272
6.

Method validation in quantitative analysis of phase I and phase II metabolites of mitragynine in human urine using liquid chromatography-tandem mass spectrometry.

Lee MJ, Ramanathan S, Mansor SM, Yeong KY, Tan SC.

Anal Biochem. 2018 Feb 15;543:146-161. doi: 10.1016/j.ab.2017.12.021. Epub 2017 Dec 14.

PMID:
29248503
7.

Polyphenols rich fraction of Dicranopteris linearis promotes fibroblast cell migration and proliferation in vitro.

Ponnusamy Y, Chear NJ, Ramanathan S, Lai CS.

J Ethnopharmacol. 2015 Jun 20;168:305-14. doi: 10.1016/j.jep.2015.03.062. Epub 2015 Apr 7.

PMID:
25858509
8.

Understanding the physicochemical properties of mitragynine, a principal alkaloid of Mitragyna speciosa, for preclinical evaluation.

Ramanathan S, Parthasarathy S, Murugaiyah V, Magosso E, Tan SC, Mansor SM.

Molecules. 2015 Mar 18;20(3):4915-27. doi: 10.3390/molecules20034915.

9.

Evaluation of antinociceptive effect of methanolic leaf and root extracts of Clitoria ternatea Linn. in rats.

Kamilla L, Ramanathan S, Sasidharan S, Mansor SM.

Indian J Pharmacol. 2014 Sep-Oct;46(5):515-20. doi: 10.4103/0253-7613.140583.

10.

Chemopreventive effects of standardized papaya leaf fraction on oxidatively stressed human liver cells.

Tan SA, Goya L, Ramanathan S, Sulaiman SF, Alam M, Navaratnam V.

Food Res Int. 2014 Oct;64:387-395. doi: 10.1016/j.foodres.2014.06.040. Epub 2014 Jul 4.

PMID:
30011665
11.

Investigation of antioxidant and hepatoprotective activity of standardized Curcuma xanthorrhiza rhizome in carbon tetrachloride-induced hepatic damaged rats.

Devaraj S, Ismail S, Ramanathan S, Yam MF.

ScientificWorldJournal. 2014;2014:353128. doi: 10.1155/2014/353128. Epub 2014 Jul 14.

12.

Anxiolytic-like effects of mitragynine in the open-field and elevated plus-maze tests in rats.

Hazim AI, Ramanathan S, Parthasarathy S, Muzaimi M, Mansor SM.

J Physiol Sci. 2014 May;64(3):161-9. doi: 10.1007/s12576-014-0304-0. Epub 2014 Jan 25.

PMID:
24464759
13.

Subchronic exposure to mitragynine, the principal alkaloid of Mitragyna speciosa, in rats.

Sabetghadam A, Ramanathan S, Sasidharan S, Mansor SM.

J Ethnopharmacol. 2013 Apr 19;146(3):815-23. doi: 10.1016/j.jep.2013.02.008. Epub 2013 Feb 17.

PMID:
23422336
14.

A simple HPLC-DAD method for the detection and quantification of psychotropic mitragynine in Mitragyna speciosa (ketum) and its products for the application in forensic investigation.

Parthasarathy S, Ramanathan S, Murugaiyah V, Hamdan MR, Said MI, Lai CS, Mansor SM.

Forensic Sci Int. 2013 Mar 10;226(1-3):183-7. doi: 10.1016/j.forsciint.2013.01.014. Epub 2013 Feb 4.

PMID:
23385139
15.

Effects of Mesua ferrea leaf and fruit extracts on growth and morphology of Staphylococcus aureus.

Aruldass CA, Marimuthu MM, Ramanathan S, Mansor SM, Murugaiyah V.

Microsc Microanal. 2013 Feb;19(1):254-60. doi: 10.1017/S1431927612013785. Epub 2013 Jan 18.

PMID:
23332129
16.

A118G mu opioid receptor polymorphism among drug addicts in Malaysia.

Nagaya D, Ramanathan S, Ravichandran M, Navaratnam V.

J Integr Neurosci. 2012 Mar;11(1):117-22.

PMID:
22744787
17.

Brine shrimp lethality and acute oral toxicity studies on Swietenia mahagoni (Linn.) Jacq. seed methanolic extract.

Sahgal G, Ramanathan S, Sasidharan S, Mordi MN, Ismail S, Mansor SM.

Pharmacognosy Res. 2010 Jul;2(4):215-20. doi: 10.4103/0974-8490.69107.

18.

Antioxidant activity and total phenolic content of methanol extracts of Ixora coccinea.

Torey A, Sasidharan S, Latha LY, Sudhakaran S, Ramanathan S.

Pharm Biol. 2010 Oct;48(10):1119-23. doi: 10.3109/13880200903490505.

PMID:
20738154
19.

Determination of mitragynine in plasma with solid-phase extraction and rapid HPLC-UV analysis, and its application to a pharmacokinetic study in rat.

Parthasarathy S, Ramanathan S, Ismail S, Adenan MI, Mansor SM, Murugaiyah V.

Anal Bioanal Chem. 2010 Jul;397(5):2023-30. doi: 10.1007/s00216-010-3707-7. Epub 2010 May 8.

PMID:
20454783
20.

The evaluation of antinociceptive activity of alkaloid, methanolic, and aqueous extracts of Malaysian Mitragyna speciosa Korth leaves in rats.

Sabetghadam A, Ramanathan S, Mansor SM.

Pharmacognosy Res. 2010 May;2(3):181-5. doi: 10.4103/0974-8490.65514.

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