当前位置： SCI文献检索 > ACTA TROPICA期刊下所有文献 > Ecto-phosphatase activity on the external surface of Rhodnius prolixus salivary glands: modulation by carbohydrates and Trypanosoma rangeli.

Ecto-phosphatase activity on the external surface of Rhodnius prolixus salivary glands: modulation by carbohydrates and Trypanosoma rangeli.

Abstract：

:The salivary glands of insect's vectors are target organs to study the vectors-pathogens interactions. Rhodnius prolixus an important vector of Trypanosoma cruzi can also transmit Trypanosoma rangeli by bite. In the present study we have investigated ecto-phosphatase activity on the surface of R. prolixus salivary glands. Ecto-phosphatases are able to hydrolyze phosphorylated substrates in the extracellular medium. We characterized these ecto-enzyme activities on the salivary glands external surface and employed it to investigate R. prolixus-T. rangeli interaction. Salivary glands present a low level of hydrolytic activity (4.30+/-0.35 nmol p-nitrophenol (p-NP)xh(-1)xgland pair(-1)). The salivary glands ecto-phosphatase activity was not affected by pH variation; and it was insensitive to alkaline inhibitor levamisole and inhibited approximately 50% by inorganic phosphate (Pi). MgCl2, CaCl2 and SrCl2 enhanced significantly the ecto-phosphatase activity detected on the surface of salivary glands. The ecto-phosphatase from salivary glands surface efficiently releases phosphate groups from different phosphorylated amino acids, giving a higher rate of phosphate release when phospho-tyrosine is used as a substrate. This ecto-phosphatase activity was inhibited by carbohydrates as d-galactose and d-mannose. Living short epimastigotes of T. rangeli inhibited salivary glands ecto-phosphatase activity at 75%, while boiled parasites did not. Living long epimastigote forms induced a lower, but significant inhibitory effect on the salivary glands phosphatase activity. Interestingly, boiled long epimastigote forms did not loose the ability to modulate salivary glands phosphatase activity. Taken together, these data suggest a possible role for ecto-phosphatase on the R. prolixus salivary glands-T. rangeli interaction.

journal_name

Acta Trop

journal_title

Acta tropica

authors

Gomes SA,Fonseca de Souza AL,Kiffer-Moreira T,Dick CF,dos Santos AL,Meyer-Fernandes JR

doi

10.1016/j.actatropica.2008.02.008

subject

Has Abstract

pub_date

2008-05-01 00:00:00

pages

137-42

issue

2

eissn

0001-706X

issn

1873-6254

pii

S0001-706X(08)00067-3

journal_volume

106

pub_type

杂志文章

相关文献

ACTA TROPICA文献大全
  • Retention of mosquito larvicidal activity of lyophilized cells and WDP formulation of Bacillus thuringiensis var. israelensis on long-term storage.

    abstract：:Lyophilized cells (sealed and unsealed) and water dispersible powders (WDPs) of two indigenous isolates of Bacillus thuringiensis var.israelensis were stored at -10, 4, 30 and 40 degrees C for up to 4 years and checked for activity. Lyophilized cells stored in sealed condition at -10, 4 and 30 degrees C and WDPs store...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2007.11.002

    authors： Manonmani AM,Prabakaran G,Hoti SL

    更新日期：2008-02-01 00:00:00

  • Identification and selection of cattle naturally resistant to African trypanosomiasis.

    abstract：:Cattle were exposed to natural trypanosome challenge in an area of high Glossina density (Samandéni, Burkina Faso) for various periods of time during 1982, 1983, 1984 and 1985. All of 30 Zebu proved to be sensitive to trypanosomiasis i.e. they died or were treated in extremis in 10 +/- 4 weeks. Twenty-one (31%) Baoulé...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：

    authors： Roelants GE,Fumoux F,Pinder M,Queval R,Bassinga A,Authié E

    更新日期：1987-03-01 00:00:00

  • Discriminable roles of Aedes aegypti and Aedes albopictus in establishment of dengue outbreaks in Taiwan.

    abstract：:Aedes aegypti and Aedes albopictus were reported to be significant as vectors of dengue fever. In Taiwan, the latter is distributed throughout the island while the former appears only south of the Tropic of Cancer; i.e., 23.5°N. In the past decade, there were five outbreaks with over 1000 cases of dengue fever in Taiw...

    journal_title：Acta tropica

    pub_type： 杂志文章,评审

    doi：10.1016/j.actatropica.2013.10.013

    authors： Yang CF,Hou JN,Chen TH,Chen WJ

    更新日期：2014-02-01 00:00:00

  • Differentiation and limited proliferation of isolated Leishmania mexicana amastigotes at 27 degrees C.

    abstract：:We have demonstrated here that while many amastigotes of both Leishmania mexicana amazonensis and Leishmania mexicana mexicana differentiate to promastigotes when placed in culture at 27 degrees C, many others remain as amastigotes in their proliferative cycle. We have used this system to examine the effects of the an...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/0001-706x(91)90007-7

    authors： Taylor DR,Williams GT

    更新日期：1991-12-01 00:00:00

  • Triatoma infestans relies on salivary lysophosphatidylcholine to enhance Trypanosoma cruzi transmission.

    abstract：:Triatoma infestans is a mandatory haematophagous vector of Chagas disease in Brazil. Despite a large number of studies on the anti-haemostatic molecules present in its saliva, the role of its salivary components on parasite transmission is poorly understood. Here, we show that the bioactive lipid molecule, lysophospha...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2017.10.022

    authors： Lima MS,Carneiro AB,Souto-Padron T,Jurberg J,Silva-Neto MAC,Atella GC

    更新日期：2018-02-01 00:00:00

  • An annotated checklist of the horse flies (Diptera: Tabanidae) of the Sinai Peninsula Egypt with remarks on ecology and zoogeography.

    abstract：:During a 20-year survey we routinely collected Tabanidae in the Sinai resulting in a checklist of 22 species. We recorded 2 species for the Levant (Tabanus mordax Austen, 1911 and Tabanus gratus Loew, 1858), 4 species for Egypt (Nemorius irritans (Ricardo, 1901), Chrysops flavipes Meigen, 1804, Haematopota coronata Au...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2012.01.013

    authors： Müller GC,Revay EE,Hogsette JA,Zeegers T,Kline D,Kravchenko VD,Schlein Y

    更新日期：2012-05-01 00:00:00

  • Molecular cloning and characterization of Brugia malayi thymidylate kinase.

    abstract：:Thymidylate kinase (TMK) is a potential chemotherapeutic target because it is directly involved in the synthesis of deoxythymidine triphosphate, which is an essential component for DNA synthesis. The gene encoding thymidylate kinase of Brugia malayi was amplified by PCR and expressed in Escherichia coli. The native mo...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2014.02.003

    authors： Doharey PK,Suthar MK,Verma A,Kumar V,Yadav S,Balaramnavar VM,Rathaur S,Saxena AK,Siddiqi MI,Saxena JK

    更新日期：2014-05-01 00:00:00

  • Inter- and intrapopulational genetic variability of Tityus serrulatus (Scorpiones, Buthidae).

    abstract：:In Brazil, there are near 20 genera and almost 120 species of scorpions of which 95% reproduce sexually. Parthenogenetic reproduction, however, may also take place. To gain insight into useful molecular markers in parthenogenetic scorpion species, we studied DNA polymorphism using two molecular approaches: simple sequ...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2009.07.002

    authors： Scholte RG,Caldeira RL,Simões MC,Stutz WH,Silva LL,Carvalho Odos S,Oliveira G

    更新日期：2009-11-01 00:00:00

  • Life cycle and vectorial competence of Triatoma williami (Galvão, Souza e Lima, 1965) under the influence of different blood meal sources.

    abstract：:Triatoma williami is naturally infected by Trypanosoma cruzi, the ethiological agent of Chagas disease, the most significant cause of morbidity and mortality in South and Central America.The possibility of domiciliation of T. williami increases the risk of human T. cruzi vetorial transmission. Despite this, there is a...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2015.05.023

    authors： Lunardi RR,Gomes LP,Peres Câmara T,Arrais-Silva WW

    更新日期：2015-09-01 00:00:00

  • Paromomycin-loaded mannosylated chitosan nanoparticles: Synthesis, characterization and targeted drug delivery against leishmaniasis.

    abstract：:Cutaneous leishmaniasis is the most common form of leishmaniasis caused by different species of Leishmania parasites. The emergence of resistance, toxicity, long term treatment, high cost of the current drugs, and intracellular nature of the parasite are the major difficulties for the treatment of leishmaniasis. Altho...

    journal_title：Acta tropica

    pub_type： 已发布勘误

    doi：10.1016/j.actatropica.2019.105072

    authors： Esfandiari F,Motazedian MH,Asgari Q,Morowvat MH,Molaei M,Heli H

    更新日期：2019-09-01 00:00:00

  • Study of antimicrobial resistance and physiological biomarkers with special reference to Salmonellosis in diarrheic foals in Punjab, Pakistan.

    abstract：:Antimicrobial resistance results in selective colonization in animals. In the present study, 447 diarrheic foals (235 horse foals, 165 donkey foals and 47 mule foal) were selected from Lahore and Sahiwal districts of Punjab, Pakistan. Fresh fecal and blood samples from diarrheic foals were collected for isolation and ...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2017.08.003

    authors： Haq I,Durrani AZ,Khan MS,Mushtaq MH,Ahmad I

    更新日期：2017-12-01 00:00:00

  • Infestation of Mauritia flexuosa palms by triatomines (Hemiptera: Reduviidae), vectors of Trypanosoma cruzi and Trypanosoma rangeli in the Brazilian savanna.

    abstract：:To determine the infestation and trypanosome infection of triatomines captured in Mauritia flexuosa palm trees across its geographic distribution in the Brazilian savanna (Cerrado), we sampled 42 localities in eight states and in the Federal District, Brazil, between July 2005 and January 2010. Overall, 2154 specimens...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2011.10.010

    authors： Gurgel-Gonçalves R,Cura C,Schijman AG,Cuba CA

    更新日期：2012-02-01 00:00:00

  • First record of natural vertical transmission of dengue virus in Aedes aegypti from Cuba.

    abstract：:While horizontal transmission (human-mosquito-human) of dengue viruses largely determines the epidemiology of the disease, vertical transmission (infected female mosquito- infected offspring) has been suggested as a mechanism that ensures maintenance of the virus during adverse conditions for horizontal transmission t...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2017.07.012

    authors： Gutiérrez-Bugallo G,Rodriguez-Roche R,Díaz G,Vázquez AA,Alvarez M,Rodríguez M,Bisset JA,Guzman MG

    更新日期：2017-10-01 00:00:00

  • Effect of nitrobenzylthioinosinate on the toxicity of tubercidin and ethidium against Trypanosoma gambiense.

    abstract：:The coadministration of tubercidin and ethidium to mice infected with Trypanosoma gambiense gave a better parasite clearance than either of the single drugs. The combination was also more toxic to the mice but the inclusion of nitrobenzylthioinosinate in the therapy significantly alleviated the toxicity of the drug co...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：

    authors： Ogbunude PO,Ikediobi CO

    更新日期：1982-09-01 00:00:00

  • Factors influencing attendance to immunization sessions for children in a rural district of Ghana.

    abstract：:Improving immunization coverage is vital to promoting child health and reducing childhood diseases and deaths. In spite of being actively promoted as a major public health intervention for national development since the late 1970s, immunization coverage in Ghana remains low. We investigated factors that influence atte...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/s0001-706x(97)00094-6

    authors： Bosu WK,Ahelegbe D,Edum-Fotwe E,Bainson KA,Turkson PK

    更新日期：1997-12-01 00:00:00

  • Mycotoxigenic potentials of the genera: Aspergillus, Fusarium and Penicillium isolated from houseflies (Musca domestica L.).

    abstract：:A study on the potential of houseflies (Musca domestica L.) to spread fungal spores in Gauteng Province, South Africa proved that houseflies are vectors for fungal spores. Therefore, there is a need to determine the toxigenic potentials and to identify the mycotoxins produced by fungal isolates derived from this study...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2016.12.037

    authors： Phoku JZ,Barnard TG,Potgieter N,Dutton MF

    更新日期：2017-04-01 00:00:00

  • Mansonella perstans filariasis in Africa.

    abstract：:Mansonella perstans is a vector-borne human filarial nematode, transmitted by tiny blood-sucking flies (biting midges). It is widespread in many parts of Sub-Saharan Africa and also occurs in parts of Central and South America. Despite the commonness of this parasite very few studies have been carried out on its epide...

    journal_title：Acta tropica

    pub_type： 杂志文章,评审

    doi：10.1016/j.actatropica.2010.01.014

    authors： Simonsen PE,Onapa AW,Asio SM

    更新日期：2011-09-01 00:00:00

  • Creating spatially defined databases for equitable health service planning in low-income countries: the example of Kenya.

    abstract：:Equity is an important criterion in evaluating health system performance. Developing a framework for equitable and effective resource allocation for health depends upon knowledge of service providers and their location in relation to the population they should serve. The last available map of health service providers ...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2004.05.003

    authors： Noor AM,Gikandi PW,Hay SI,Muga RO,Snow RW

    更新日期：2004-08-01 00:00:00

  • Effects of andiroba (Carapa guianensis) oil in ticks: Ultrastructural analysis of the synganglion of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae).

    abstract：:The present study performed an analysis of the ultrastructural changes induced by andiroba seed oil in the synganglion of Rhipicephalus sanguineus female ticks, aiming to provide scientific grounds to help in the creation of more specific and efficient methods of control. The synganglion consists of a mass of fused ne...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2014.06.018

    authors： Roma GC,Camargo-Mathias MI,Nunes PH,Remédio RN,de Faria AU,Bechara GH

    更新日期：2015-01-01 00:00:00

  • Minimal efficacy requirements for malarial vaccines to significantly lower transmission in epidemic or seasonal malaria.

    abstract：:The effect of vaccines against the pre-erythrocytic, the erythrocytic and the sexual stages of malaria on the transmission of malaria was examined using a simulation model of seasonal or epidemic transmission. The primary outcome of the model was the number of cases of malaria present at the end of the transmission se...

    journal_title：Acta tropica

    pub_type： 杂志文章,评审

    doi：10.1016/0001-706x(93)90013-2

    authors： Saul A

    更新日期：1993-01-01 00:00:00

  • The echinococcoses in Asia: The present situation.

    abstract：:Human alveolar and cystic echinococcosis, caused by the accidental ingestion of eggs of the tapeworms Echinococcus multilocularis and Echinococcus granulosus sensu lato, respectively, are endemic in Asia. Various Echinococcus species are maintained in domesticated and/or wild mammals through predator-prey interactions...

    journal_title：Acta tropica

    pub_type： 杂志文章,评审

    doi：10.1016/j.actatropica.2017.07.013

    authors： Ito A,Budke CM

    更新日期：2017-12-01 00:00:00

  • Effect of mixed infections of Sindbis and La Crosse viruses on replication of each virus in vitro.

    abstract：:Mixed viral infections are ubiquitous in natural populations and may have significant but unpredictable biological and epidemiological consequences. These infections may be acquired simultaneously (coinfection) or result from two single infections at different time intervals (superinfection). This study investigated t...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2013.10.016

    authors： Bara JJ,Muturi EJ

    更新日期：2014-02-01 00:00:00

  • The diagnosis and management of fever at household level in the Greater Accra Region, Ghana.

    abstract：:> Qualitative research methods were used in rural and urban areas of the Greater Accra Region to generate data to describe the folk diagnosis, etiology and management of malaria. Respondents defined as fever a set of symptoms loosely concordant with clinical malaria. Primary cause of fever as heat and particularly in ...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/0001-706x(94)90025-6

    authors： Agyepong IA,Manderson L

    更新日期：1994-12-01 00:00:00

  • Factors associated with dog rabies immunisation status in Bamako, Mali.

    abstract：:We conducted a cross-sectional survey in Bamako, Mali, to determine for the first time the seroprevalence of rabies virus antibodies in the dog population and people's knowledge, attitudes and practices (KAP) towards the disease and its control. Antibody detection was done with the fluorescent antibody virus neutralis...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2015.10.016

    authors： Mauti S,Traoré A,Hattendorf J,Schelling E,Wasniewski M,Schereffer JL,Zinsstag J,Cliquet F

    更新日期：2017-01-01 00:00:00

  • Malaria control in Malawi: current status and directions for the future.

    abstract：:The last decade has seen an increase in investment and concerted efforts by the Malawi Ministry of Health and partners to control malaria disease. This report summarizes what is known about the burden of malaria and the strategies being implemented to control it in Malawi. Over the past 5 years, roll out of treatment ...

    journal_title：Acta tropica

    pub_type： 杂志文章,评审

    doi：10.1016/j.actatropica.2011.06.017

    authors： Mathanga DP,Walker ED,Wilson ML,Ali D,Taylor TE,Laufer MK

    更新日期：2012-03-01 00:00:00

  • Prevention of alveolar echinococcosis--ecosystem and risk management perspectives in Japan.

    abstract：:We focused on the epidemiology of alveolar echinococcosis especially in Japan and discussed control measures to prevent an epidemic. No effective control measures against alveolar echinococcosis have been identified thus far because it is difficult to fully understand the ecology of the parasite and its hosts, i.e. th...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2003.09.001

    authors： Konno K,Oku Y,Tamashiro H

    更新日期：2003-12-01 00:00:00

  • Sub-microscopic Plasmodium falciparum infections in matched peripheral, placental and umbilical cord blood samples from asymptomatic Congolese women at delivery.

    abstract：:In malaria-endemic areas, most pregnant women are susceptible to asymptomatic Plasmodium falciparum infections. We present here the results of a cross-sectional study conducted in Madibou, a southern district of Brazzaville in the Republic of Congo, between March 2014 and April 2015. The main aim was to characterize P...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2019.03.001

    authors： Mbouamboua Y,Koukouikila-Koussounda F,Ntoumi F,Adukpo S,Kombo M,Vouvoungui C,van Helden J,Kobawila SC

    更新日期：2019-05-01 00:00:00

  • Morphological and physiological characteristics of a virulent and zoonotic assemblage A Giardia duodenalis canine strain.

    abstract：:Giardiasis is an intestinal parasitosis that affects millions of people worldwide and is considered a zoonotic disease. Frequently in contact with humans, dogs are the main host involved in this zoonotic transmission. Here, we compared some aspects of Giardia duodenalis biology between two strains: a recently isolated...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/j.actatropica.2017.07.002

    authors： Coelho CH,Silva ACC,Costa AO,Fernandes AP

    更新日期：2017-10-01 00:00:00

  • Leishmania aethiopica: experimental infections in non-human primates.

    abstract：:Six Cercopithecus aethiops monkeys, 4 Theropithecus gelada baboons and 2 Papio anubis baboons were infected using Leishmania aethiopica isolates originating either from localized (LCL) or diffuse (DCL) cutaneous leishmaniasis patients. The history of lesions in 4 C. aethiops monkeys infected by LCL strains mimicked th...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/0001-706x(95)00085-s

    authors： Hailu A,Negesse Y,Abraham I

    更新日期：1995-06-01 00:00:00

  • Evaluation of the antidiarrhoeal effects of Zizyphus spina-christi stem bark in rats.

    abstract：:The antidiarrhoeal effects of the methanol extract of Zizyphus spina-christi stem bark were evaluated in laboratory rodents. Studies on castor oil induced diarrhoea, intraluminal fluid accumulation, and gastrointestinal transit time were carried out. Results obtained revealed that the extract caused a dose dependent p...

    journal_title：Acta tropica

    pub_type： 杂志文章

    doi：10.1016/s0001-706x(03)00114-1

    authors： Adzu B,Amos S,Amizan MB,Gamaniel K

    更新日期：2003-07-01 00:00:00