Science: Recent submissions

Now showing items 381-400 of 846

Thrombocytosis and Anti-inflammatory Properties, and Toxicological Evaluation of Carica papaya Mature Leaf Concentrate in a Murine Model

Gammulle, Achini; Ratnasooriya, WD; Jayakody, JRAC; Fernando, Charmain; Kanatiwela, Chamini; Udagama, Preethi V. (Online International Journal of Medicinal Plants Research, 2012)

Management of thrombocytopenia is by drugs and blood products, both of which are costly. Conversely, Sri Lankan traditional medicine use mature leaf concentrate of Carica papaya to treat this condition. This claim was ...
A new species of the pseudoscorpion genus Megachernes (Pseudoscorpiones: Chernetidae) associated with a threatened Sri Lankan rainforest rodent, with a review of host associations of Megachernes

Harvey, Mark S.; Ratnaweera, Pamoda B.; Udagama, Preethi V.; Wijesinghe, Mayuri R. (Journal of Natural History, 2012)

Most species of the Old World pseudoscorpion genus Megachernes are associated with mammals, either within their nests or in their pelage, whereas others are found in cave systems, usually in bat guano. The ﬁrst Sri Lankan ...
An investigation of the antimalarial activity of Artemisia vulgaris leaf extract in a rodent malaria model

Kodippili, Kasun; Daya Ratnasooriya, Wanigasekera; Premakumara, Sirimal; Udagama, Preethi V. (International Journal of Green Pharmacy, 2011)

Antimalarial activity of an organic extract of Artemisia vulgaris was evaluated in this study in terms of both antiparasitic and antidisease activities. Antiparasitic activity of the extract at three doses (250, 500, 1000 ...
Evaluation of the genetic diversity of domain II of Plasmodium vivax Apical Membrane Antigen 1 (PvAMA-1) and the ensuing strain-speciﬁc immune responses in patients from Sri Lanka

Dias, Sajani; Somarathna, Maheshika; Manamperi, Aresha; Escalante, Ananias A.; Gunasekera, Anusha M; Udagama, Preethi V. (Vaccine, 2011)

Antigenic polymorphism displayed by malaria parasites is a skewed schema to escape the host immune system. The prevailing genetic diversity at domain II of the Plasmodium vivax Apical Membrane Antigen-1 (Pvama-1DII) was ...
Genetic diversity of Plasmodium vivax Duffy Binding Protein II (PvDBPII) under unstable transmission and low intensity malaria in Sri Lanka

Premaratne, Prasad H.; Aravinda, B. Ramesh; Escalante, Ananias A.; Udagama, Preethi V. (Infection, Genetics and Evolution, 2011)

Elucidating the genetic diversity of the Duffy Binding Protein II (PvDBPII), a leading vaccine candidate for vivax malaria, in different geographical settings is vital. In Sri Lanka malaria transmission is unstable with ...
Genetic diversity and recombination at the C-terminal fragment of the merozoite surface protein-1 of Plasmodium vivax (PvMSP-1) in Sri Lanka

Diasa, Sajani; Longacreb, Shirley; Escalant, Ananias A; Udagama-Randeniya, Preethi V. (Infection, Genetics and Evolution, 2010)

Extensive polymorphism in the genes encoding for surface antigens of Plasmodium falciparum and Plasmodium vivax has been a serious impediment for malaria vaccine development. One such antigen is the merozoite surface ...
Genetic complexity of Plasmodium vivax infections in Sri Lanka, as reflected at the merozoite-surface-protein-3a locus

WICKRAMARACHCHI, T.; PREMARATNE, P. H.; DIAS, S; HANDUNNETTI, S. M.; UDAGAMA-RANDENIYA, P. V. (Annals of Tropical Medicine & Parasitology, 2010)

The presence of genetically different strains of malarial parasites in cases of human malaria is a severe drawback in the successful control of the disease. In Sri Lanka, although this species accounts for 60%–80% of all ...
Parasitic associations of a threatened Sri Lankan rainforest rodent, Mus mayori pococki (Rodentia: Muridae)

Ratnaweera, Pamoda B.; Wijesinghe, Mayuri R.; Udagama-Randeniya, Preethi V. (Parasitic associations of a rainforest rodent, 2010)

Parasitic investigations of the subspecies Mus mayori pococki were carried out in four rainforests that included two man and biosphere reserves and two forest reserves of Sri Lanka from October 2006 to August 2007. Rodents ...
Host speciﬁcity in bat ectoparasites: A natural experiment

Seneviratne, Sampath S.; Fernando, H. Chandrika; Udagama-Randeniya, Preethi V. (International Journal for Parasitology, 2008)

We undertook a ﬁeld study to determine patterns of specialisation of ectoparasites in cave-dwelling bats in Sri Lanka. The hypothesis tested was that strict host speciﬁcity (monoxeny) could evolve through the development ...
PARASITES OF SELECTED REPTILES OF THE NATIONAL ZOOLOGICAL GARDEN, SRI LANKA

Fernando, Saminda P.; Udagama-Randeniya, Preethi V (2009)

The National Zoological Garden plays a vital role in conservation of reptiles in Sri Lanka. Since parasitic infestations of captive reptiles can impact their health, a survey for intestinal parasites and ectoparasites was ...
A study of immunological profile, disease characteristics and socioeconomic status of a population of rheumatoid arthritis patients in Sri Lanka

Rajapaksa, G.K.; De Silva, V.; Goonathilake, S.; Athukorala, I.; Wijayarathna, L.S.; Udagama-Randeniya, P.V. (2009)

Objective: To study the immunological profile, disease characteristics and socioeconomic status of a population of patients with rheumatoid arthritis (RA) in Sri Lanka. Methods: A case-control study was undertaken to ...
In-vivo antimalarial activity of aqueous root extract of Barringtonia acutangula in mice

Jayasinghe, Chanika D; Udagama-Randeniya, Preethi V; Ratnasooriya, W.D. (Pharmacognosy Magazine, 2008)

This study scientifically investigated the antimalarial activity of an aqueous root extract (ARE) of Barringtonia acutangula (L.) Gaertn. (Lecythidaceae), claimed to be used in malaria therapy in indigenous medicine in Sri ...
Genetic Diversity and Selection at the Plasmodium vivax Apical Membrane Antigen-1 (PvAMA-1) Locus in a Sri Lankan Population

Gunasekera, Anusha M.; Wickramarachchi, Thilan; Neafsey, Daniel E.; Ganguli, Ishani; Perera, Lakshman; Premaratne, Prasad H.; Hartl, Daniel; Handunnetti, Shiroma M.; Udagama-Randeniya, Preethi V.; Wirth, Dyann F. (Molecular Biology and Evolution, 2007)

Plasmodium vivax apical membrane antigen 1 (PvAMA-1) is an important malaria vaccine candidate. We present the first comprehensive analysis of nucleotide diversity across the entire PvAMA-1 gene using a single population ...
Comparison of naturally acquired antibody responses against the C-terminal processing products of Plasmodium vivax Merozoite Surface Protein-1 under low transmission and unstable malaria conditions in Sri Lanka

Wickramarachchi, Thilan; lleperuma, Ruwan J.; Perera, Lakshman; Bandara, Sumith; Holm, Inge; Longacre, Shirley; Handunnetti, Shiroma M.; Udagama-Randeniya, Preethi V (International Journal for Parasitology, 2006)

We report here, for the first time, a comparison of naturally acquired antibody responses to the 42 and 19 kDa C-terminal processing products of Plasmodium vivax Merozoite Surface Protein-1 assayed by ELISA using p42 and ...
Multi-character population study of the vir subtelomeric multigene superfamily of Plasmodium vivax, a major human malaria parasite

Merino, Emilio F.; Fernandez-Becerra, Carmen; Durham, Alan M; Ferreira, João E.; Tumilasci, Vanessa F.; d’Arc-Neves, Joana; Silva-Nunes, Monicada; Ferreira, Marcelo U.; Wickramarachchi, Thilan; Udagama-Randeniya, Preethi; Handunnetti, Shiroma M.; del Portillo, Hernando A. (Molecular and Biochemical Parasitology, 2006)

Plasmodium vivax, the most widely distributed human malaria parasite, contains the subtelomeric multigene vir superfamily corresponding to circa 10% of its coding genome. In this work, we used a multi-character strategy ...
Natural Human Antibody Responses to Plasmodium vivax Apical Membrane Antigen 1 under Low Transmission and Unstable Malaria Conditions in Sri Lanka

Wickramarachchi, Thilan; Premaratne, Prasad H.; Perera, K. L. R. Lakshman; Bandara, Sumith; Thomas, Alan W.; Handunnetti, Shiroma M.; Udagama-Randeniya, Preethi V. (INFECTION AND IMMUNITY, 2005)

Plasmodium vivax apical membrane antigen 1, an important malaria vaccine candidate, was immunogenic during natural malaria infections in Sri Lanka, where low transmission and unstable malaria conditions prevail. Antibody ...
Seroprevalence of Sarcosystis spp. in Cattle and Buﬀaloes from the Wet and Dry Zones of Sri Lanka: a Preliminary Study

Kalubowila, D.G.W.; Udagama-Randeniya, P.V.; Perera, N.A.N.D.; Rajapakse, R.P.V.J. (Journal of Veterinary Medicine, Series B, 2004)

An enzyme-linked immunosorbent assay (ELISA) was developed for the detection of antibodies to Sarcosystis infection in cattle and buffaloes. Crude antigens derived from cystozoites of Sarcosystis cruzi and antibodies from ...
Purification of an acidic coniferin-hydrolysing β-glucosidase from developing xylem of Pinus banksiana

Leinhos, Volker; Udagama-Randeniya, Preethi V.; Savidge, Rodney A. (Phytochemistry, 1994)

Two cytosolic, acidic (pI 3.8) glycoproteins (Mr 110 000 and 90 000) from lignifying xylem of Pinus banksiana were electrophoretically isolated and confirmed by combined gas chromatography-mass spectrometry to be capable ...
Airline Seats Allocation Optimization Through Revenue Management

Saubhagya, K S; Wijesekara, W M L K N; Jayamanne, Imali T (Sri Lankan Journal of Applied Statistics, 2018)

Revenue Management has recently gained a solid recognition in Airline industry. It acts as a strategic and tactic provider to manage the uncertainty in demand for their perishable products in the most profitable manner as ...
Gender, Employment and Higher Education Theme: Trends in Employment Characteristics of Arts Graduates by Gender

Jayamanne, Imali T; Ramanayake, K. P. Asoka (VISTAS Journal, 2019)

At present, female enrollment for higher education is steadily increasing and contemporary it is about 80% for Arts discipline. An analogy to this, female labour force participation is also grown enormously. There may be ...

Now showing items 381-400 of 846

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