Browsing by Author "Ratnasooriya, W.D."

Analgesic Activity of Murraya koenigii Leaf Extract in Rats

Ratnasooriya, W.D.; Peiris, L.D.C.; Amerasekera, A.S. (University of Colombo, Colombo 7, 1994)

Some native doctors practising the traditional system of medicine in Sri Lanka recommend leaf extracts of Murra-,-a koenigii Spreng. Syst. Veg. (Family Rutaceae; known as karapincha in Sinhala and karuvembu in Tamil) tbr ...

Analgesic and Sedative Action of Monocrotophos Following Oral Administration in Rats

Ratnasooriya, W.D.; Peiris, L.D.C.; Jayatunga, Y.N.A. (University of Colombo, Colombo 7, 1995)

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Anti-cholinesterase Activity of Bark and Leaf Extracts of Ceylon Cinnamon (Cinnamomum zeylanicum Blume) in Vitro

Abeysekara, W.P.K.M.; Premakumara, G.A.S.; Ratnasooriya, W.D. (Sri Lanka Association for the Advancement of Science, Colombo 07, 2015-12-01)

Ceylon cinnamon (CC) (Cinnamomum zeylanicum Blume) known as ‘true cinnamon’ in the world has been used as a spice in Sri Lanka for centuries. Although cinnamon bark is reported to have many biological activities, its ...

Anti-inflammatory Activity of Argyreia populifolia Leaf Juice

Ratnasooriya, W.D.; Dharmasiri, M.G. (2001)

Leaves of Argyreia populifoLia Choisy (Convolvulaceae) is used in traditional medicine for inflammation in joints and Arthropod bites. However, the pharmacological confirmation for anti-inflammatory activity of the ...

Antidiarrhoeal Activity of Decoction of Scoparia dulcis in Rats

Ratnasooriya, W.D.; Galhena, G.; Liyanage, S.S.P.; Jayakody, J.R.A.C.; Hettiarachchi, A.D.I.; Ediriweera, E.R.S.S. (2005)

The aim of this study was to investigate the antidiarrhoeal potential of a decoction (D) made from Scoparia dulcis Linn (Family: Scrophulariaceae), as indicated by traditional practitioners in Sri Lanka, using the caster ...

Antihyperglycemic and Hypoglycemic Activities of Phyllanthus debilis Aqueous Plant Extract in Mice

Wanniarachchi, K.K.; Peiris, L.D.C.; Ratnasooriya, W.D. (Taylor & Francis Online, 2009)

The whole plant of Phyllanthus debilis Linn. (Euphorbiaceae) is used in Sri Lanka for the treatment of diabetes mellitus. However, hypoglycemic and antihyperglycemic activity of this plant has not been scienti!cally validated. ...

Antinociceptive Action of Icon®, a Pyrethroid Insecticide on Pregnant Rats

Ratnasooriya, W.D.; Ratnayake, S.S.K.; Jayatunga, Y.N.A. (2002)

Icon® is a type II synthetic pyrethroid insecticide based on active ingredient Lambda cyhalothrin (10% w/w). In a recent study it was evident that this insecticide although induced marked signs of stress and other overt ...

Antireproductive Effects in Male Rats Exposed to Methamidophos

Peiris, L.D.C.; Jayatunga, Y.N.A.; Ratnasooriya, W.D. (University of Peradeniya, Peradeniya., 1995)

This study examined the reproductive effects of methamidophos, an organophosphorus pesticide on male rats following sub-chronic oral administration (in 3 alternate days). The doses tested were 1.8750 and 0.9375 mg kg"1 ...

Antireproductive Effects of Tamoxifien when Applied Locally to the Epididynis of Rats

Ratnasooriya, W.D.; Manickavasagar, S. (1994)

This study investigated the effects of tamoxifen, an oestrogen receptor antagonist on fertility of male rats. This was done by applying the drug directly to the epididymis through implantation of silastic rods containing ...

The Diet of Sri Lankan Domesticated Elephant (Elephas maximus maximus)

Godagama, W.K.; Wemmer, C.; Ratnasooriya, W.D. (1999)

The aim of this study was to scientifically document the components of the diets usually given to domesticated elephants of Sri Lanka (Elephas maxim us maximus). The study was conducted between April, 1993 and April, ...

Ecology of Ecto-parasites of Some Cave-dwelling Microchiropterans of Sri Lanka

Weerakkody, A.S.A.; Randeniya, P.V.; Ratnasooriya, W.D. (1999)

The population and community characteristics of ecto-parasites of bats in Sri Lanka have not been previously examined. The aim of the present study was to investigate these attributes based on incidence, density, ...

Effect of Aqueous Leaf Extract of Ficus benghalensis on Nociception and Sedation in Rats

Deraniyagala, S.A.; Ratnasooriya, W.D.; Perera, P.S. (2002)

The aim of this study was to investigate the effects of aqueous leaf extract (WE), of Ficus benghalensis Linn. (Family: Moraceae) on nociception and sedation using male rats. Different doses of the WE (0,125, 250, 500 ...

Effect of Carbachol on Fertility of Male Rats When Administered Locally to Epididymis

Ratnasooriya, W.D. (1990)

This study examines the effect of carbachol, a potent cholinoceptor agonist drug, on fertility of male rats, when administered to epididymis using stlastic formulations, in the form of rods. 10% and 25% carbachol rods ...

Effect of Kohiladi Decoction on Clotting of Blood

Weerasekera, K.R.; Ediriweera, E.R.H.S.S.; Vidyashekhera, M.S.P. Cooray; Jayakody, J.R.A.C.; Ratnasooriya, W.D. (2005)

The study examined the effect ofkohiladi decoction (consisting of tubers of Lasia spinosa, Linn. entire plant of Centella asiatica Linn. seeds of Vigna radiate Linn, bulbs of Allium cepa Linn and dried fish of Katsuwonus ...

Effect of Methanolic Extract of Abrus precatorius Seeds on Fertility of Female Rats

Ratnasooriya, W.D.; Amarasekara, A.S.; Ananda, U.V.D.S. (1991)

This study examines the post-coital contraceptive potential of a methanolic extract of Abrus precatorius seeds using albino rats. The major constituent of this extract was found to be abrin, an amino acid derivative (68 ...

Effect of Naproxen on Fertility in Male Rats

Ratnasooriya, W.D. (1985)

The antifertility effects of naproxen, a prostaglandin synthesis inhibiting drug, were investigated in male rats. A dose of 14 mg/kg/day administered orally for 7 days caused a significant reduction in fertility which was ...

Effect of Patoladi ghanasara on Ethanolinduced Gastric Lesions in Rrats

Munasinghe, S.L.; Vithanage, D.K.; Ratnasooriya, W.D. (2002)

Patoladi Ghanasara (PG) consisting of five ingredients (Termimlia chebule Retz; Terminania belarica Roxb; Phillenthus emblica Linn; Tricosenthus cucumarina Linn; Azadirachta indica A Juss) is recommended for the treatment ...

Effect of Sri Lankan Black Tea Brew (Camellia sinensis) on Hexabarbital Induced Sleep in Mice

Ratnasooriya, W.D.; Fernando, T.S.P.; Madubashini, P.P. (2006)

Present study examined the effect of warm black tea brew/ infusion (BTB) of Camellia sinensis (L.) O. Kuntze (family: Theaceae) on sleep. The above was tested in hexabarbital induced sleep model in mice using three doses ...

Effect of Vasopressin on Fertility of Male Rats

Ratnasooriya, W.D.; Jayakody, J.R.A.C. (2005)

Several drugs, which induce epididymal contractions, have been tested as potential male contraceptives. Vasopressin is one such agent, which has not been tested as a potential male contraceptive acting via epididymis. ...

Effects of Atropine on Fertility of Male Rats

Ratnasooriya, W.D. (1989)

Insertion of silastic rods containing 25% and 50% atropine adjacent to the epididymis of rats produced a significant suppression in fertility which was temporary with the lower dose and permanent with the higher dose. Both ...

Browsing by Author "Ratnasooriya, W.D."

Browsing by Author "Ratnasooriya, W.D."

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