Abstract:
:In a cross sectional study, 19 French and 23 Colombian cases of confirmed active ocular toxoplasmosis (OT) were evaluated. The objective was to compare clinical, parasitological and immunological responses and relate them to the infecting strains. A complete ocular examination was performed in each patient. The infecting strain was characterized by genotyping when intraocular Toxoplasma DNA was detectable, as well as by peptide-specific serotyping for each patient. To characterize the immune response, we assessed Toxoplasma protein recognition patterns by intraocular antibodies and the intraocular profile of cytokines, chemokines and growth factors. Significant differences were found for size of active lesions, unilateral macular involvement, unilateral visual impairment, vitreous inflammation, synechiae, and vasculitis, with higher values observed throughout for Colombian patients. Multilocus PCR-DNA sequence genotyping was only successful in three Colombian patients revealing one type I and two atypical strains. The Colombian OT patients possessed heterogeneous atypical serotypes whereas the French were uniformly reactive to type II strain peptides. The protein patterns recognized by intraocular antibodies and the cytokine patterns were strikingly different between the two populations. Intraocular IFN-γ and IL-17 expression was lower, while higher levels of IL-13 and IL-6 were detected in aqueous humor of Colombian patients. Our results are consistent with the hypothesis that South American strains may cause more severe OT due to an inhibition of the protective effect of IFN-γ.
journal_name
PLoS Negl Trop Disjournal_title
PLoS neglected tropical diseasesauthors
de-la-Torre A,Sauer A,Pfaff AW,Bourcier T,Brunet J,Speeg-Schatz C,Ballonzoli L,Villard O,Ajzenberg D,Sundar N,Grigg ME,Gomez-Marin JE,Candolfi Edoi
10.1371/journal.pntd.0002541subject
Has Abstractpub_date
2013-11-21 00:00:00pages
e2541issue
11eissn
1935-2727issn
1935-2735pii
PNTD-D-13-00633journal_volume
7pub_type
杂志文章abstract:BACKGROUND:Yersinia pestis, the agent of plague, is considered a potential bioweapon due to rapid lethality when delivered as an aerosol. Levofloxacin was tested for primary pneumonic plague treatment in a nonhuman primate model mimicking human disease. METHODS AND RESULTS:Twenty-four African Green monkeys (AGMs, Chlo...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0000959
更新日期:2011-02-08 00:00:00
abstract:BACKGROUND:BALB/c mice are highly susceptible while C57BL/6 are relatively resistant to experimental Trypanosoma congolense infection. Although regulatory T cells (Tregs) have been shown to regulate the pathogenesis of experimental T. congolense infection, their exact role remains controversial. We wished to determine ...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0001761
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Visceral leishmaniasis (VL) is characterized by parasite-specific immunosuppression besides an intense pro-inflammatory response. Lipopolisaccharide (LPS) has been implicated in the immune activation of T-cell deficient diseases such as HIV/AIDS and idiopathic lymphocytopenia. The source of LPS is gram-negat...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0001198
更新日期:2011-07-01 00:00:00
abstract::As the most widespread tick-borne arbovirus causing infections in numerous countries in Asia, Africa and Europe, Crimean-Congo Hemorrhagic Fever Virus (CCHFV, family Nairoviridae) was included in the WHO priority list of emerging pathogens needing urgent Research & Development attention. To ensure preparedness for pot...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0006366
更新日期:2018-03-26 00:00:00
abstract:BACKGROUND:Schistosomiasis japonica is a zoonotic parasitic disease. After nearly 70 years of control efforts in China, Schistosomiasis transmission has been reduced to a much lower level. The absence or near absence of infections in humans or livestock, based on traditional fecal and serological tests, has made the ta...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章,meta分析
doi:10.1371/journal.pntd.0007475
更新日期:2019-06-07 00:00:00
abstract:BACKGROUND:Currently, molecular xenomonitoring efforts for lymphatic filariasis rely on PCR or real-time PCR-based detection of Brugia malayi, Brugia timori and Wuchereria bancrofti in mosquito vectors. Most commonly, extraction of DNA from mosquitoes is performed using silica column-based technologies. However, such e...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0006962
更新日期:2018-11-21 00:00:00
abstract:OBJECTIVE:The aim of the study is to examine the spatiotemporal pattern of Japanese Encephalitis (JE) in mainland China during 2002-2010. Specific objectives of the study were to quantify the temporal variation in incidence of JE cases, to determine if clustering of JE cases exists, to detect high risk spatiotemporal c...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0002285
更新日期:2013-06-20 00:00:00
abstract:BACKGROUND:Most of the Leishmania genome is reported to be constitutively expressed during the life cycle of the parasite, with a few regulated genes. Inter-species comparative transcriptomics evidenced a low number of species-specific differences related to differentially distributed genes or the differential regulati...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0001021
更新日期:2011-05-10 00:00:00
abstract:BACKGROUND:Human echinococcosis is a neglected zoonosis caused by parasites of the genus Echinococcus. The most frequent clinical forms of echinococcosis, cystic echinococcosis (CE) and alveolar echinococcosis (AE), are responsible for a substantial health and economic burden, particularly to low-income societies. Quan...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章,评审
doi:10.1371/journal.pntd.0002249
更新日期:2013-06-06 00:00:00
abstract:BACKGROUND:Congenital toxoplasmosis is a serious but preventable and treatable disease. Gestational screening facilitates early detection and treatment of primary acquisition. Thus, fetal infection can be promptly diagnosed and treated and outcomes can be improved. METHODS:We tested 180 sera with the Toxoplasma ICT Ig...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0005670
更新日期:2017-06-26 00:00:00
abstract:BACKGROUND:Leishmania development in the sand fly gut leads to highly infective forms called metacyclic promastigotes. This process can be routinely mimicked in culture. Gene expression-profiling studies by transcriptome analysis have been performed with the aim of studying promastigote forms in the sand fly gut, as we...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章,评审
doi:10.1371/journal.pntd.0007288
更新日期:2019-05-09 00:00:00
abstract:BACKGROUND:Transmission of Yersinia pestis by flea bite can occur by two mechanisms. After taking a blood meal from a bacteremic mammal, fleas have the potential to transmit the very next time they feed. This early-phase transmission resembles mechanical transmission in some respects, but the mechanism is unknown. Ther...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0005276
更新日期:2017-01-12 00:00:00
abstract:BACKGROUND:Chikungunya virus (CHIKV) is an important emerging and re-emerging public health problem worldwide. In Indonesia, where the virus is endemic, epidemiological information from outside of the main islands of Java and Bali is limited. METHODOLOGY/PRINCIPAL FINDINGS:Four hundred and seventy nine acutely febrile...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0008934
更新日期:2020-12-21 00:00:00
abstract:BACKGROUND:During severe (pneumo)sepsis inflammatory and coagulation pathways become activated as part of the host immune response. Thrombomodulin (TM) is involved in a range of host defense mechanisms during infection and plays a pivotal role in activation of protein C (PC) into active protein C (APC). APC has both an...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0002819
更新日期:2014-04-24 00:00:00
abstract::Chikungunya virus (CHIKV) infection is characterized by rash, acute high fever, chills, headache, nausea, photophobia, vomiting, and severe polyarthralgia. There is evidence that arthralgia can persist for years and result in long-term discomfort. Neurologic disease with fatal outcome has been documented, although at ...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0003101
更新日期:2014-09-04 00:00:00
abstract:BACKGROUND:Burkholderia cepacia complex (Bcc) is a group of serious pathogens in cystic fibrosis patients and causes life threatening infections in immunocompromised patients. Species within the Bcc are widely distributed within the environment, can survive in the presence of disinfectants and antiseptics, and are inhe...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0008200
更新日期:2020-04-09 00:00:00
abstract:BACKGROUND:Tick feeding causes extreme morbidity and mortality to humans through transmission of pathogens and causes severe economic losses to the agricultural industry by reducing livestock yield. Salivary gland secretions are essential for tick feeding and thus, reducing or preventing saliva secretions into the vert...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0007153
更新日期:2019-02-07 00:00:00
abstract:BACKGROUND:Leishmania species are parasitic protozoa that have a tightly controlled cell cycle, regulated by cyclin-dependent kinases (CDKs). Cdc2-related kinase 3 (CRK3), an essential CDK in Leishmania and functional orthologue of human CDK1, can form an active protein kinase complex with Leishmania cyclins CYCA and C...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0001033
更新日期:2011-04-05 00:00:00
abstract:BACKGROUND:In South Asia, hundreds of millions of people are infected with soil-transmitted helminths (Ascaris lumbricoides, hookworm, and Trichuris trichiura). However, high-resolution risk profiles and the estimated number of people infected have yet to be determined. In turn, such information will assist control pro...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0007580
更新日期:2019-08-09 00:00:00
abstract::Global efforts to control morbidity associated with soil-transmitted helminth infections (STH) have focused largely on the targeted treatment of high-risk groups, including children and pregnant women. However, it is not clear when such programs can be discontinued and there are concerns about the sustainability of cu...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0008771
更新日期:2020-11-02 00:00:00
abstract::Hantaviruses are endemic throughout the world and hosted by rodents and insectivores. Two human zoonoses, hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS), are caused by hantaviruses and case fatality rates have reached 12% for HFRS and 50% for HPS in some outbreaks. Symptomatic han...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0001607
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:in uganda, control of intestinal schistosomiasis with preventive chemotherapy is typically focused towards treatment of school-aged children; the needs of younger children are presently being investigated as in lakeshore communities very young children can be infected. In the context of future epidemiologica...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0000938
更新日期:2011-01-04 00:00:00
abstract::Soil-transmitted helminthiases (STHs) constitute a public health problem that requires immediate action to resolve the morbidity of those harboring the parasites in their guts, to prevent infection in all those at risk, and to interrupt the vicious circle of poverty and disease in the affected communities, structural ...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0006672
更新日期:2018-09-13 00:00:00
abstract:BACKGROUND:Melioidosis is gaining recognition as an emerging infectious disease with diverse clinical manifestations and high-case fatality rates worldwide. However, the molecular epidemiology of the disease outside the endemic regions such as northeast part of Thailand and northern Australia remains unclear. METHODOL...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0007312
更新日期:2019-05-15 00:00:00
abstract:BACKGROUND:Viral hemorrhagic fevers (VHF) are acute diseases associated with bleeding, organ failure, and shock. VHF may hardly be distinguished clinically from other diseases in the African hospital, including viral hepatitis. This study was conducted to determine if VHF and viral hepatitis contribute to hospital morb...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0002435
更新日期:2013-09-19 00:00:00
abstract::Leprosy is an infectious disease caused by Mycobacterium leprae and frequently resulting in irreversible deformities and disabilities. Ticks play an important role in infectious disease transmission due to their low host specificity, worldwide distribution, and the biological ability to support transovarial transmissi...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0007001
更新日期:2018-12-19 00:00:00
abstract:INTRODUCTION:Previous studies of Ebola Virus Disease (EVD) have focused on clinical symptoms and Ebola virus (EBOV) cycle threshold (CT) values recorded at patient triage. Our study explores EVD symptoms and EBOV CT values from onset of illness to recovery or death in a diverse population of patients. METHODOLOGY/PRIN...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0005700
更新日期:2017-07-19 00:00:00
abstract:BACKGROUND:Blindness is caused by eye pathogens that include a free-living protist (Acanthamoeba castellanii, A. byersi, and/or other Acanthamoeba spp.), a fungus (Fusarium solani), and a bacterium (Chlamydia trachomatis). Hand-eye contact is likely a contributor to the spread of these pathogens, and so hand washing wi...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0005382
更新日期:2017-02-09 00:00:00
abstract:BACKGROUND:Dengue virus (DENV) is the most important arbovirus worldwide, causing infections in endemic countries and returning travellers from these areas. Rapid diagnostic tests are needed to improve patient management and monitor local transmission. The detection of DENV non-structural protein 1 (NS1) is a useful to...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0008082
更新日期:2020-02-18 00:00:00
abstract::The niche conservatism hypothesis states that related species diverge in niche characteristics at lower rates than expected, given their lineage divergence. Here we analyze whether niche conservatism is a common pattern among vector species (Hemiptera: Reduviidae: Triatominae) of Trypanosoma cruzi that inhabit North a...
journal_title:PLoS neglected tropical diseases
pub_type: 杂志文章
doi:10.1371/journal.pntd.0003266
更新日期:2014-10-30 00:00:00