Abstract：
:Using standard WHO methodology, this study investigated the susceptibility of 4(th) instar Aedes aegypti (L) and Culex annulirostris (Skuse) larvae to three extracts from Callitris glaucophylla (J. Thompson & L. Johnson) (1: steam distillation extract, 2: liquefied refrigerant gas extract, and 3: methanol reflux extract), lambda-cyhalothrin (a synthetic pyrethroid insecticide) and fenitrothion (an organophosphorous insecticide). Cx. annulirostris was significantly more susceptible than Ae. aegypti to all tested chemicals except lambda-cyhalothrin. Responses to the three C. glaucophylla extracts were exceptional for a botanical compound: Cx. annulirostris (LC(50) = 0.23, 9.53 and 38.95 mg/L) and Ae. aegypti (LC(50) = 0.69, 5.21 and 306.43 mg/L). Both Cx. annulirostris and Ae. aegypti larvae were significantly more susceptible to lambda-cyhalothrin (LC(50) = 0.00013 and 0.00016 mg/L) than fenitrothion (LC(50) = 0.0009 and 0.004 mg/L). As expected, the pyrethroid and organophosphorous insecticides were far more potent than the crude C. glaucophylla extracts. The steam distilled extract was fractionated and the major components guaiol and citronellic acid were identified and tested. Activities for these major components were lower than observed for the distillate. Minor components include lactones such as eldanolide, and future testing of minor components may indicate the active component.
journal_name
Trop Biomedjournal_title
Tropical biomedicineauthors
Essam Abdel SS,Deon Vahid C,Bruce B,Mohamed Wagdy FY,Hoda Abdel WA,Abdel Hamid Msubject
Has Abstractpub_date
2006-12-01 00:00:00pages
180-5issue
2eissn
0127-5720issn
2521-9855journal_volume
23pub_type
杂志文章abstract：:The objective of this work is to evaluate the usefulness of a standardized clinical classification of hydroceles in lymphatic filariasis endemic countries to guide their surgical management. 64 patients with hydroceles were operated in 2009-2010, in Level II hospitals (WHO classification), during two visits to F...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2012-03-01 00:00:00
abstract：:A focal outbreak of malaria at Sialimal sub-centre of Balasore district of Orissa was reported during the month of March, 2010. Three villages of the above block were affected. Regional Medical Research Centre, Bhubaneswar has conducted an entomological survey and a central clinic simultaneously, with door to do...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2012-06-01 00:00:00
abstract：:This paper discusses the colonization of the stratiomyid species Ptecticus melanurus (Walker) (Diptera: Stratiomyidae) in monkey carrion and its potential for the determination of the minimum time since death (PMI). A study was conducted in a tropical forest at Bangi, Malaysia from 13 November 2009 to 8 June 201...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2012-12-01 00:00:00
abstract：:A cohort study was performed to evaluate the incidence and risk factors of Giardia duodenalis infection in an orphanage in suburban area outside Bangkok, central Thailand. Stool specimens were examined for the presence of G. duodenalis in January 2007, May 2007 and January 2008. Of 892 stool specimens from 481 individ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2014-09-01 00:00:00
abstract：:Plasmodim vivax malaria accounts for more than 90% of malaria cases in Sri Lanka. There is limited information on the genetic heterogeneity of P. vivax in endemic areas of the country. Here we have assessed the potential of two P. vivax genes as genetic markers for their use in genotyping parasites collected from the ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2008-08-01 00:00:00
abstract：:Japanese encephalitis (JE) virus activity is an important cause of viral encephalitis in Southeast Asia. In Malaysia, JEV activity has been first detected in Culex gelidus in 1976. Since then, no study has fully addressed the seasonal dynamics of this mosquito. As irrigated rice production expands, the incidence of JE...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2010-12-01 00:00:00
abstract：:This study assessed the effectiveness of a biorational control approach using 2% hydramethylnon gel bait on German cockroaches, Blattella germanica (L.) in some residential and hospital buildings in South Western Iran. In total, three buildings consisting of 150 apartment units and 101 hospital units were monitored we...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2010-08-01 00:00:00
abstract：:Prior to the implementation of Haemophilus influenzae type b vaccination worldwide, H. influenzae has been one of the main causative agents of community acquired pneumonia and meningitis in children. Due to the lack of information on the characteristics of the H. influenzae isolates that have previously been col...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2012-09-01 00:00:00
abstract：:During 2008-2009 a total of 67 individuals of rodents, Tetera indica, Meriones hurrianae, Meriones libycus and Gerbillus nanus were trapped in three areas, Bampor, Daman and Qasre Qand from Iranshahr and Nikshahr districts. There is a significant difference between comparative abundance of four species (P<0.05). A tot...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2013-03-01 00:00:00
abstract：:One hundred and sixty eight rats were trapped from the National Service Training Centres (NSTC) in Kelantan and Terengganu from October 2008 to May 2009. Microscopic agglutination test (MAT) was performed to detect the presence of agglutinating antibodies to Leptospira among the rats caught. All the MAT positive rats ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2010-04-01 00:00:00
abstract：:Changes in the abundance of the house fly, Musca domestica, was studied for a period of one year in two poultry farms in Penang, Malaysia: one in Balik Pulau, located in Penang island, and the other in Juru, located on mainland Penang. The sampling of house flies were carried out from March 2007 to April 2008 using th...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2009-08-01 00:00:00
abstract：:This paper reports an outbreak of trypanosomiasis due to Trypanosoma evansi in Java deer (Cervus timorensis) on a government deer farm in Lenggong, Perak. Seventeen adult female Java deer were found dead within a week. Symptoms of dullness, inappetence, anaemia, anorexia, respiratory distress and recumbency were seen ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2007-12-01 00:00:00
abstract：:This study reports for the first time molecular detection of Anaplasma platys infection in 4 (13.3%) of 30 Malaysian dogs investigated. A low occurrence (3.3%) of Babesia gibsoni was also noted, being detected in one of the 30 dogs. Rickettsia, Bartonella, Orientia tsutsugamushi, and Ehrlichia DNA were not detected in...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2013-06-01 00:00:00
abstract：:Limited data is available on the prevalence of parasitic infections among the island communities in Malaysia with most studies performed between 1960s-1980s. This study was conducted to determine the current prevalence status of parasitic infections among communities living in Pangkor Island Peninsular Malaysia. A tot...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2014-12-01 00:00:00
abstract：:Hand, foot and mouth disease (HFMD) is a common viral infection among infants and children. The major causative agents of HFMD are enterovirus 71 (EV71) and coxsackievirus A16 (CVA16). Recently, coxsackievirus A6 (CVA6) infections were reported in neighboring countries. Infected infants and children may present with f...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2014-12-01 00:00:00
abstract：:Escherichia coli (E. coli) strains are the major cause of urinary tract infections (UTI) and belong to the large group of extra-intestinal pathogenic E. coli. The purposes of this study were to determine the antibiotic resistance profile, virulence genes and phylogenetic background of E. coli isolates from UTI cases. ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2014-03-01 00:00:00
abstract：:Routine surveillance on resistant status of field mosquito populations is important to implement suitable strategies in order to prevent pest outbreaks. WHO test kit bioassay is the most frequent bioassay used to investigate the susceptibility status of field-collected mosquitoes, as it is relatively convenient ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2011-08-01 00:00:00
abstract：:This study was conducted to estimate the frequency of Cryptosporidium infections in Taif (Saudi Arabia). Stool samples from children under 10 years by modified Ziehl-Neelson staining and two PCR techniques were used for genotyping experiments. The microscopic examination showed that, eleven samples were positive for p...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2014-06-01 00:00:00
abstract：:The present study was carried out to determine the prevalence of Theileria lestoquardi from two districts of Khyber Pukhtoon Khwa (Kohat and Peshawar) in Pakistan and also to report the risk factors associated with the spread of ovine theileriosis. A total of 165 blood samples were collected from sheep (N = 44) and go...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2015-06-01 00:00:00
abstract：:Due to the disadvantages of human and equine rabies immunoglobulin, it is necessary to develop a substitute for HRIG and ERIG, especially for those people living in the developing countries. Because of higher affinity and lower immunogenicity of rabbit's immunoglobulins, anti-rabies immunoglobulins specific to rabies ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2011-04-01 00:00:00
abstract：:Nosocomial blood stream infection (or nosocomial bacteremia) is a common problem in hospitals worldwide, including Malaysia. A three-year prospective cohort study (October 2003-March 2007) of the incidences, risk factors, and patterns of the microorganisms causing bacteremia was conducted using a validated surveillanc...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2010-08-01 00:00:00
abstract：:In this case series report we aim to report a Disseminated Intravascular Coagulation (DIC)-like syndrome associated with Hemiscorpius lepturus sting in 4 individuals and a novel management protocol for this life-threatening condition that comprised partial exchange transfusion in severe scorpionism. ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2011-12-01 00:00:00
abstract：:A human corpse at an advanced stage of decomposition was found in a house in the residential area of Bukit Mertajam, Penang, Malaysia. Entomological specimens were collected during the post-mortem and the live specimens were subsequently reared at room temperature. The time of death was estimated to have been 14 days ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2009-04-01 00:00:00
abstract：:Entamoeba histolytica, the causative agent of human amoebiasis remains a significant cause of morbidity and mortality in developing countries and is responsible for up to 100,000 deaths worldwide each year. Entamoeba dispar, morphologically indistinguishable from E. histolytica is more common in humans in many parts o...
journal_title：Tropical biomedicine
pub_type： 杂志文章,评审
doi：
更新日期：2011-08-01 00:00:00
abstract：:A study was conducted to evaluate the infection status of Blastocystis hominis in children from four public schools in Phuttamonthon district, Nakhon Pathom province, Thailand during November to December 2004. A total of 814 faecal specimens were used for B. hominis cultivation using Jones' medium. Mixed infections wi...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2006-06-01 00:00:00
abstract：:The disease melioidosis, caused by the soil bacteria Burkholderia pseudomallei, often manifests as acute septicemia with high fatality. Glycogen synthase kinase-3β (GSK3β) plays a key role during the inflammatory response induced by bacteria. We used a murine model of acute melioidosis to investigate the effects...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2012-12-01 00:00:00
abstract：:FT-IR spectra of liver tissue isolated from mice, Mus musculus, have been recorded in the region of 4000 - 400 cm-1 for normal, mercury treated and recovery phase. In this study, the total protein content was found to be decreased in the liver tissues after treatment with median-lethal dose of mercuric chloride. The m...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2005-06-01 00:00:00
abstract：:Laboratory strain of the Malaysian Culex quinquefasciatus was susceptible to Wuchereria bancrofti. Thirty three percent of the Cx. quinquefasciatus that fed on W. bancrofti patient were infective after 12-14 days. There is a possibility for W. bancrofti to occur in the urban areas of the Malaysia in the near future. ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2005-06-01 00:00:00
abstract：:Plaque assay procedure was carried out to determine the infectivity titration of dengue virus using Aedes albopictus C6/36 mosquito cell line. Cells were seeded in 6 wells plates and incubated until monolayer C6/36 cell lines were formed. Each well was exposed to a different dilution of dengue infected culture fluid, ...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2005-12-01 00:00:00
abstract：:The majority of amoeba infection are asymptomatic, but clinically intestinal amoebiasis or extra intestinal amoebiasis may result. Genital amoebiasis is very rare manifestation of extra intestial amoebiasis, but a case of amoebic scrotal abscess, seen in Surabaya. The invasive form of Entamoeba histolytica trophozoite...
journal_title：Tropical biomedicine
pub_type： 杂志文章
doi：
更新日期：2015-09-01 00:00:00
