Abstract:
:A semi-automated cultivation apparatus for the in vitro culture of Plasmodium falciparum gametocytes is described. This apparatus has been designed to produce large numbers of fertile sexual stages for use in the development of a gamete vaccine or for the infection of suitable mosquitoes. These mosquitoes in turn may be used for the development of a possible sporozoite vaccine. Loss of red cells during medium change has been eliminated and the addition of warmed fresh medium simplified compared to similar systems described previously. Material harvested from this apparatus has been used for infecting mosquitoes. Up to 98% of Anopheles stephensi were infected with a mean oocyst count of 24 per positive gut (range one to 109). The importance of satisfactory presentation of gametocytes for mosquito infection is stressed. The possible presence of substances in normal human sera which inhibits exflagellation to a variable degree and reduces mosquito infectivity is also discussed.
journal_name
Trans R Soc Trop Med Hygauthors
Ponnudurai T,Lensen AH,Leeuwenberg AD,Meuwissen JHdoi
10.1016/0035-9203(82)90116-xsubject
Has Abstractpub_date
1982-01-01 00:00:00pages
812-8issue
6eissn
0035-9203issn
1878-3503journal_volume
76pub_type
杂志文章abstract::This study aims at estimating the recent trends in HIV-1 prevalence and the factors associated with infection among pregnant women in the Gulu District of north Uganda, a rural area severely affected by civil strife. In 2000-2003, a total of 4459 antenatal clinic attendees of Lacor Hospital were anonymously tested for...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/j.trstmh.2005.09.002
更新日期:2006-06-01 00:00:00
abstract::An enzyme-linked immunosorbent assay (ELISA) developed using Leishmania donovani promastigote soluble antigen gave positive responses in practically all the clinically and parasitologically diagnosed patients with kala-azar in a preliminary study. Healthy control subjects from non-endemic and endemic areas gave negati...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(90)90319-a
更新日期:1990-05-01 00:00:00
abstract::A total of 1,197 wild animals from Pará State north Brazil, were examined for haematozoa. Trypanosoma cruzi-like parasites were found in 13 different species, and were particularly common in a variety of marsupials (Didelphidae), porcupines (Coendou spp.), armadillos (Dasypus novemcinctus) and coatimundis(Nasua nasua)...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(79)90211-6
更新日期:1979-01-01 00:00:00
abstract::In a previous study performed in south Sulawesi (Sulawesi Selatan), Indonesia, we established that the immunoglobulin G4 (IgG4) enzyme-linked immunosorbent assay (ELISA) is a suitable community diagnostic method and that it can distinguish areas of high and low prevalences within short distances. In an attempt to make...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(96)90140-6
更新日期:1996-03-01 00:00:00
abstract::The in vitro effect of pyrimethamine (PYR) on human blood mononuclear cells stimulated with phytohaemagglutinin (PHA), pokeweed mitogen (PWM) and purified protein derivative of tuberculin (PPD) was studied by 14C-thymidine incorporation, by cell counting and by total DNA estimation. PYR in concentrations 10 times high...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(86)90040-4
更新日期:1986-01-01 00:00:00
abstract::A prospective series of 156 patients systemically envenomed following the bite of a Papuan taipan (Oxyuranus scutellatus canni) were studied. All patients were treated with appropriate antivenom and clinical course and outcome were compared. The proportion of patients requiring intubation was significantly smaller, an...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(95)90562-6
更新日期:1995-05-01 00:00:00
abstract::Twenty-two hydatid cysts have been accurately located in the abdomens of seven patients by ultrasound B-scanning. Lapartomy has confirmed the presence of 19 of these cysts. Grey-scale techniques do not appear to add appreciably to the ease of diagnosis in this condition. Ultrasound can give the clinician a good idea o...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(77)90201-2
更新日期:1977-01-01 00:00:00
abstract::The blood pressure patterns of three Kenyan communities have been studied: 861 members of the Luo tribe in a rural community, 281 members of the Kamba tribe in a rural community and 310 "urban" Luo living in Nairobi. The slope of linear regression of blood pressure with age was significantly different in each populati...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(85)90390-6
更新日期:1985-01-01 00:00:00
abstract::Freeze-dried and freshly cultured isolates of Plasmodium falciparum from different countries have been examined for variation in six enzymes, GPI, PGD, LDH, GDH, ADA and PEPE, using starch gel electrophoresis. Variant forms of each enzyme occur. For most enzymes, similar forms occur in isolates from different parts of...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(81)90331-x
更新日期:1981-01-01 00:00:00
abstract::Both northern and southern Sudan are deploying artemisinin-based combinations against uncomplicated Plasmodium falciparum malaria (artesunate+sulfadoxine-pyrimethamine [AS+SP] in the north, artesunate+amodiaquine [AS+AQ] in the south). In 2003, we tested the efficacy of 3 day AS+SP and AS+AQ regimens in vivo in the is...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.trstmh.2004.10.003
更新日期:2005-07-01 00:00:00
abstract::The relation between Plasmodium falciparum malaria and symptomatic human immunodeficiency virus 1 (HIV-1) infection was investigated in paediatric and adult patients in Kampala, Uganda, from 1987 to 1989. Both infections contributed largely to hospital morbidity. Of 1527 clinically suspicious in-patients, 61% were pos...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(90)90306-y
更新日期:1990-05-01 00:00:00
abstract::Vitamin A supplements are reported to reduce febrile episodes of malaria and parasite counts, especially in children aged 12-36 months. Red palm oil (RPO) is a good source of vitamin A, is rich in alpha- and beta-carotene and is as effective as high-dose retinyl palmitate supplements in improving vitamin A status. In ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(02)90312-3
更新日期:2002-03-01 00:00:00
abstract::This year-long study investigated the epidemiology of acute filarial episodes due to Wuchereria bancrofti in 2 rural villages in south India. The annual incidence of 96.5 episodes/1000 population was significantly higher in males (108.5) than females (84.1) an strongly age dependent. First occurrence of acute disease ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(96)90415-0
更新日期:1996-11-01 00:00:00
abstract::Mice immunized with purified antigen preparations produced in Escherichia coli and containing the glutathione S-transferase (GST) isoenzyme of Schistosoma japonicum (Sj26) can be partially resistant to infection with this parasite. Maximum resistance was approximately 50% and no protection was obtained in BALB/c mice,...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(88)90027-2
更新日期:1988-01-01 00:00:00
abstract::Rotavirus was detected by enzyme-linked immunosorbent assay in faecal specimens collected from two (1.35%) of 148 marsupials trapped in the Amazon jungle environment. The positive samples were both from the "common opossum", Didelphis marsupialis. No infections were found in the stools of 198 animals belonging to othe...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(86)90186-0
更新日期:1986-01-01 00:00:00
abstract::In 25 cases of pellagra and 10 healthy controls, the blood pyruvic acid levels in the fasting stage and after 60 and 90 minutes of glucose load were estimated by the technique of Friedmann & Haugen (1943). The blood pyruvic acid levels after 60 and 90 minutes of glucose load were significantly higher in pellagrins as ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(77)90200-0
更新日期:1977-01-01 00:00:00
abstract::Observations on canine leishmaniasis in Morocco (clinical symptoms, diagnosis, evolution, haematology, development of serum proteins, pathology and histopathology) are reported from dogs examined during 1979/80. Special reference is made to infantile kala-azar and its increasing incidence. The public health importance...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(87)90217-3
更新日期:1987-01-01 00:00:00
abstract::Tuberculosis (TB) of the breast is a very rare pathology. The clinical presentations of this disease are manifold, often mimicking carcinoma of the breast. We conducted a retrospective analysis of 20 women with TB of the breast receiving care at the mastology clinic at Getúlio Vargas Hospital, PI, Brazil, between 1994...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,评审
doi:10.1016/j.trstmh.2009.02.005
更新日期:2009-06-01 00:00:00
abstract::Four cases manifesting features characteristic of epidemic dropsy following body massage with contaminated mustard oil are reported. A transcutaneous route of absorption for the toxin (sanguinarine) resulting in epidemic dropsy has not been documented previously in man. Oil used for body massage was found to be adulte...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(85)90079-3
更新日期:1985-01-01 00:00:00
abstract::Inadequate evaluation of vaccine coverage after mass vaccination campaigns, such as used in national measles control programmes, can lead to inappropriate public health responses. Overestimation of vaccination coverage may leave populations at risk, whilst underestimation can lead to unnecessary catch-up campaigns. Th...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/j.trstmh.2007.10.015
更新日期:2008-03-01 00:00:00
abstract::Major endemic areas of visceral leishmaniasis in Brazil are located in the drier, poorly forested regions, principally in the northeastern States such as Ceará and Bahia. Cases of the human disease in the Amazon Region are rare, very sporadic, and seldom present opportunities for epidemiological study. Following the r...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(82)90119-5
更新日期:1982-01-01 00:00:00
abstract::A purified 200-kDa antigenic fraction from Leishmania donovani axenic amastigotes was evaluated by ELISA for the detection of antibody response in visceral leishmaniasis (VL) patients, post kala-azar dermal leishmaniasis (PKDL) patients and controls, for the diagnosis of visceral leishmaniasis. A positive antibody res...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(00)90264-5
更新日期:2000-03-01 00:00:00
abstract::The influence of spatial and temporal factors on onchocerciasis transmission by Simulium exiguum s.l. and S. quadrivittatum in Ecuador was investigated to help develop sampling protocols for entomological surveillance of ivermectin programmes. Flies were collected in alternate months (November 1995-November 1996) at f...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/j.trstmh.2004.03.012
更新日期:2005-03-01 00:00:00
abstract::Night blood surveys for filariasis were carried out in two camps of repatriates from Bangladesh. The sample consisted of 1,101 Biharis above one year of age of whom 9.0% were found infected with Wuchereria bancrofti. The infection rate was significantly higher in males (10.2%) than in females (6.7%). Of the three mosq...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(81)90435-1
更新日期:1981-01-01 00:00:00
abstract::When cross-sectional surveys are used to evaluate malaria intervention programmes in the community, the prevalence of morbidity is difficult to assess because of the fluctuating nature of malarial fever. We have therefore investigated the impact of bed net usage on 2 surrogate markers of malarial morbidity: (i) elevat...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(96)90461-7
更新日期:1996-01-01 00:00:00
abstract::Leishmania lainsoni has recently been recognized as a new peripylarian species belonging to the subgenus Viannia and the L. braziliensis complex. It has been isolated from its sandfly vector, reservoir host and cutaneous lesions of human patients. Microscopical examination has shown characteristics which are different...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(95)90509-x
更新日期:1995-03-01 00:00:00
abstract::The compounds derived from the Chinese medicinal plant qinghao (Artemisia annua) are the most rapidly acting of all antimalarial drugs. They are effective when given parenterally, orally or by suppository. No serious adverse effect has yet been reported in humans. The artemisinin derivatives already have an establishe...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(94)90459-6
更新日期:1994-06-01 00:00:00
abstract::Leishmaniasis is a worldwide disease, but due to the absence of surveillance systems is under-reported from low- and middle-income countries. In Ethiopia, the disease is found in the rural highlands and the incidence of Leishmania/HIV co-infection is increasing. Although some studies have been carried out in areas of ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/j.trstmh.2009.02.023
更新日期:2009-07-01 00:00:00
abstract::The liver fluke Opisthorchis felineus is a member of the triad of epidemiologically important liver fluke species belonging to the family Opisthorchiidae and the major agent causing opisthorchiasis over a vast territory, covering Russia, Kazakhstan and several European countries. The similarity between the diseases ca...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,评审
doi:10.1093/trstmh/trv085
更新日期:2016-01-01 00:00:00
abstract::We conducted experiments in vitro to assess the effect of artemether in combination with haemin on adult Schistosoma japonicum, S. mansoni and S. haematobium. When schistosomes were maintained in a medium containing artemether at concentrations of 20 micrograms/mL or less for 72 h, no apparent effect on the schistosom...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(01)90336-0
更新日期:2001-01-01 00:00:00