Abstract:
:Considerable evidence documents the importance of co-factors, including the immune response, in expression of oncogenicity of tumour viruses. To determine whether a common protozoal infection that can depress lymphocyte function alters manifestations of oncogenic virus infection, a mouse model of Toxoplasma infection with depressed T lymphocyte function was developed. In this model, Toxoplasma depressed blastogenic transformation to the T-cell mitogen Concanavalin A and primary antibody response to sheep red blood cells which requires T cell help. Uninfected and Toxoplasma-infected mice were then infected with Moloney leukaemia or Moloney sarcoma viruses and development of lymphoma and sarcoma were evaluated. Toxoplasma infection, which induced depression of T-cell function, decreased the incidence of Moloney sarcoma virus induced rhabdomyosarcomas but did not alter progression or regression of tumour in those mice that developed tumour. Conjoint infection with Toxoplasma and Moloney leukaemia virus did not increase incidence of lymphoma when compared with incidence of lymphoma in mice infected with Moloney leukaemia virus alone.
journal_name
Trans R Soc Trop Med Hygauthors
McLeod R,Estes RG,Cohen Hdoi
10.1016/0035-9203(85)90116-6subject
Has Abstractpub_date
1985-01-01 00:00:00pages
781-7issue
6eissn
0035-9203issn
1878-3503journal_volume
79pub_type
杂志文章abstract::By microinjection of cryopreserved microfilariae (mf) into nulliparous flies, a comparison of the lengths of the infective larvae (L3) of Onchocerca volvulus and O. ochengi from the head of Simulium damnosum s.l. (presumed S. sirbanum) has been made. The suitability of S. sirbanum as a host was similar for both Onchoc...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(92)90443-g
更新日期:1992-01-01 00:00:00
abstract::An evaluation of the performance of the Kersey Nutrition Rehabilitation Centre in Nigeria was undertaken with particular focus on mortality, rate of weight gain, and the management strategy. During 1987-1991 the total number of admissions for protein-energy malnutrition (PEM) was 803. The age group most commonly repre...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(94)90177-5
更新日期:1994-09-01 00:00:00
abstract:BACKGROUND:We aimed to investigate the outcome of children with Japanese encephalitis (JE) and to examine the predictors of the outcome. METHODS:We reviewed the medical records of children with laboratory-confirmed Japanese encephalitis hospitalized in Children's Hospital of Chongqing Medical University in 2010. At le...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/trt064
更新日期:2013-10-01 00:00:00
abstract::From the early 1900s, visceral leishmaniasis (VL; kala-azar) has been among the most important health problems in Sudan, particularly in the main endemic area in the eastern and central regions. Several major epidemics have occurred, the most recent--in Western Upper Nile province in southern Sudan, detected in 1988--...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(01)90218-4
更新日期:2001-04-01 00:00:00
abstract::Roots of Pseudocedrela kotschyi are commonly used as chewing sticks in West Africa. This study examined the effects of the plant extract on the in-vitro growth of Plasmodium falciparum. Ring-stage synchronised cultures of the malaria parasite were exposed to 30 and 60 microg/ml of P. kotschyi extract for 51 h. Aliquot...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/j.trstmh.2009.02.018
更新日期:2009-07-01 00:00:00
abstract::A meta-analysis of rapid (=60 min) dengue diagnostic assays was conducted to determine accuracy and identify causes of between-study heterogeneity. A systematic review identified 302 potentially suitable studies, of which 11 were selected for meta-analysis. All selected studies evaluated the immunochromatographic te...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.trstmh.2005.10.018
更新日期:2006-08-01 00:00:00
abstract::Malaria remains an important health problem in Bangladesh, with approximately 14 million people at risk. Antimalarial drug resistance is a major obstacle to the control of malaria in endemic countries. In 2012, Bangladesh reported an estimated 29 522 malaria episodes, of which 94% were reported as being caused by Plas...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,评审
doi:10.1093/trstmh/trt088
更新日期:2013-12-01 00:00:00
abstract::This paper reviews the application of epidemiological understanding of diarrhoeal disease to interventions in water and sanitation. Over the past 20 years, great efforts have been made to elucidate the relationships between water supply, sanitation and diarrhoeal disease. At the outset, it was hoped that improved unde...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,评审
doi:10.1016/0035-9203(93)90537-z
更新日期:1993-12-01 00:00:00
abstract::Eleven heterogeneous patients with inoperable hydatid disease were treated with high doses of oral mebendazole, up to 200 mg/kg/day for 16 to 48 weeks. Toxicity was not encountered. Despite careful assessment it proved difficult critically to evaluate the efficacy of mebendazole. In four patients chemotherapy appeared...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(82)90151-1
更新日期:1982-01-01 00:00:00
abstract:Background:Chronic hepatitis B infection affects 240 million people, with the highest prevalence in Africa and Asia, and results in 700 000 deaths annually. Access to diagnostics, particularly for hepatitis B virus viral load quantification (HBV DNA), is a major barrier to treatment. We aimed to test World Health Organ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/try117
更新日期:2019-01-01 00:00:00
abstract::Sulfadoxine-pyrimethamine (SP) and co-trimoxazole were both effective in reducing fever, clearing parasitaemia and improving anaemia in children aged < 5 years with uncomplicated malaria in 2 Kenyan endemic sites, Oyugis in the west and Tiwi on the coast. We compared the efficacy of these 2 regimens (in May-July 1998)...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0035-9203(01)90107-5
更新日期:2001-11-01 00:00:00
abstract:BACKGROUND:Achromobacter xylosoxidans is described as being resistant to antiseptics and disinfectants. We studied in vitro the ability of five strains to survive and grow in such solutions, with and without starvation. METHODS:Bacterial suspensions in rich media and in distilled water were inoculated into eight antis...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/trz016
更新日期:2019-06-01 00:00:00
abstract::Data on malaria transmission intensity and prevalences of asexual parasites and of gametocytes were obtained in an urban district of Yaoundé, Cameroon. The transmission level from mosquito to human was determined by indoor night capture of mosquitoes on human volunteers, revealing a calculated entomological inoculatio...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(03)90059-9
更新日期:2003-07-01 00:00:00
abstract::The new OptiMAL-IT(R) rapid diagnostic test for malaria was evaluated in 271 patients in Thailand with uncomplicated malaria between June and July 2002. The sensitivity and specificity for the diagnosis of Plasmodium falciparum parasites were 88% and 92%, respectively. For species other than P. falciparum, the sensiti...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(03)80100-1
更新日期:2003-11-01 00:00:00
abstract::This study was conducted to reassess the risk factors for giardiasis in communities of the Orang Asli (indigenous people) in Pahang, Malaysia. Stool samples were collected from 321 individuals (2-76 years old; 160 males, 161 females). Data were collected via laboratory analysis of faecal samples and a pre-tested stand...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,多中心研究
doi:10.1016/j.trstmh.2008.02.004
更新日期:2008-05-01 00:00:00
abstract::We report two patients who presented with a long-lasting febrile illness associated with pancytopenia. Both of them had evidence of hypercellular marrow with haemophagocytosis. They were confirmed as having rickettsial infections by serology and had a rapid haematological recovery with anti-rickettsial antibiotics. We...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/j.trstmh.2009.04.003
更新日期:2009-09-01 00:00:00
abstract::A longitudinal survey--parasitological, clinical, immunological and entomological--of onchocerciasis is being conducted in Gbaiima village in Sierra Leone. The estimated Annual Transmission Potential (ATP) is 5863. More than 80% of the annual transmission occurs between October and December. Four species of the Simuli...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(86)90389-5
更新日期:1986-01-01 00:00:00
abstract::The red fox is considered to be the main reservoir of the present European rabies epizootic which began in Poland in 1939-40. Its usual rate of spread is 20 to 60 km a year. Mortality among rabies-infected fox populations is estimated variously to be 20 to 60%. The infection spreads more rapidly among foxes in the aut...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章,评审
doi:10.1016/0035-9203(76)90036-5
更新日期:1976-01-01 00:00:00
abstract::A survey was conducted for serum neutralizing antibodies against 3 members of the Lyssavirus group (rabies, Lagos bat and Mokola viruses) in Nigerian dogs and humans. Of 463 unvaccinated dogs sampled, 142 (30.7%) had antibodies against rabies; 39.2% of the stray dogs were positive. Of 241 dogs tested, 17.4% had antibo...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(90)90103-l
更新日期:1990-11-01 00:00:00
abstract::Experimental and natural infections of Simulium sanchezi by Mansonella ozzardi were studied in the area of Síquita, Territorio Federal Amazonas, Venezuela. The microfilariae developed synchronously in the blackflies, reaching stage L3 in seven to eight days at temperatures between 23 degrees and 27 degrees C. Larvae i...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(85)90226-3
更新日期:1985-01-01 00:00:00
abstract:BACKGROUND:Neurocysticercosis (NCC) is a neglected tropical disease and its diagnosis is still a challenge due to non-specific manifestations. Neuroimaging techniques are used in the diagnosis of NCC, however, due to the high cost of these methods and the advantages presented in the use of immunological tests, such as ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/traa028
更新日期:2020-08-01 00:00:00
abstract::Hungry Anopheles funestus females were caught in CDC light traps positioned overnight in village houses in which the occupants were protected by bed nets. The sampling was performed in six huts near Muheza, in North-eastern Tanzania, September to November 1972. Parous, unfed mosquitoes were carefully examined, usually...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(77)90086-4
更新日期:1977-01-01 00:00:00
abstract::Countries around the world are facing an enormous challenge due to the COVID-19 pandemic. The pressure that the pandemic inflicts on health systems could certainly impact on the care, control, and elimination of neglected tropical diseases (NTDs). From mid-January 2020, Ethiopia started to prepare for the prevention a...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/traa072
更新日期:2020-10-05 00:00:00
abstract::Malaria transmission varies from village to village and even from family to family in the same village. The current study was conducted in northern Ethiopia to identify risk factors responsible for such variations in a hypoendemic highland malaria setting: 2114 children aged < 10 years living in 6 villages situated cl...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(00)90424-3
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND:Mumbai is a hot spot for drug-resistant TB, and private practitioners trained in AYUSH systems (Ayurveda, yoga, Unani, Siddha and homeopathy) are major healthcare providers. It is important to understand how AYUSH practitioners manage patients with TB or presumptive TB. METHODS:We conducted semi-structured ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1093/trstmh/trw009
更新日期:2016-03-01 00:00:00
abstract::The emerging virus strain termed highly pathogenic H5N1 avian influenza (HP-H5N1) has spread widely in the past decade and is now the focus of considerable concern in several sectors. We tested the hypothesis that spatial distributions of veterinary and human HP-H5N1 cases are related to coarse-scale environmental fea...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/j.trstmh.2008.01.016
更新日期:2008-05-01 00:00:00
abstract::There is concern that crop irrigation that results in increased numbers of vector mosquitoes will lead to a rise in malaria in local communities. We evaluated the level of malaria experienced in 3 communities in northern Tanzania with different agricultural practices: rice irrigation, sugar-cane irrigation and traditi...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(02)90408-6
更新日期:2002-09-01 00:00:00
abstract::Accurate identification of Leishmania species is important for monitoring clinical outcome, adequately targeting treatment, and evaluation of epidemiological risk in tegumentary leishmaniasis. This is especially the case in regions where several species coexist and for travel medicine where the geographical source of ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/s0035-9203(03)90031-9
更新日期:2003-01-01 00:00:00
abstract::We have studied the distribution of rheumatoid factor isotypes amongst patients with loiasis with and without accompanying glomerulonephritis to determine the possible role of rheumatoid factor antiglobulins in this disease. Our findings indicate an increase in both immunoglobulin (Ig) G and IgM rheumatoid factor isot...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(92)90183-d
更新日期:1992-11-01 00:00:00
abstract::Bone marrow cultures in 15 Plasmodium falciparum patients were studied both during and after parasitaemia. Abnormalities were observed only in the group during parasitaemia. These abnormalities included: (1) decreased normoblastic number and cellular iron incorporation in all cases; (2) premature death of normoblasts ...
journal_title:Transactions of the Royal Society of Tropical Medicine and Hygiene
pub_type: 杂志文章
doi:10.1016/0035-9203(76)90048-1
更新日期:1976-01-01 00:00:00