885 resultados para Competency-Based Approach


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The health status and need for care differ depending on the gender. The most notable differences are life expectancy, life expectancy in good health and the prevalence of geriatric syndromes or chronic illnesses. Some social health determinants (social isolation or financial precariousness) seem to act as risk factors for vulnerability, mostly amongst old or very old women. Through some examples of differences between men and women in terms of health and caregiving needs, this article tries to heighten the awareness of health professionals to a gender based approach of the elderly patient in order to promote the best possible equity in healthcare.

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Currently, smoking cessation represents one of the main strategies to reduce the incidence of tobacco-related diseases in the population. Smoking can also influence pharmacotherapy through several pharmacokinetic or pharmacodynamic interactions. Some of the most concerned drugs are those metabolized by the cytochrome P450 (CYP) 1A2 enzyme (e.g. caffeine, theophylline, clozapine, olanzapine, duloxetine), whose activity is induced by the polycyclic aromatic hydrocarbons found in tobacco smoke. This can result in a clinically significant decrease in the pharmacological effect of the drugs and the need of higher doses in smokers. Conversely, upon smoking cessation, toxic plasma levels of the drugs can be reached. The main objective of this thesis was to study the interindividual variability in CYP1A2 induction in a large cohort of smokers, by measuring CYP1A2 activity before smoking cessation and one month later in continuously abstinent subjects. For this purpose, a clinical study was conducted, including 194 smokers from the general population who wished to participate in a smoking cessation program and therefore received medical counseling and substitution therapy (nicotine or varenicline). An analytical method for the simultaneous quantification of nicotine, its metabolites and varenicline in plasma was developed and validated using ultra performance liquid chromatography coupled with tandem mass spectrometry. This method was used to confirm abstinence at different time points during the follow-up. Moreover, it was used to determine plasma levels of the smoking cessation drugs, to be used in the study of their pharmacogenetics, which was the secondary objective of this thesis. High interindividual variability in CYP1A2 induction by smoking was observed, ranging from no change to approximately 7 times decreased CYP1A2 activity after smoking cessation. Several clinical and genetic factors were investigated in an attempt to explain this variability. Firstly, a significant influence of CYP1A2*1F and *1D alleles, of contraceptive use and of the number of cigarettes smoked per day on CYP1A2 induced activity was observed, and of CYP1A2*1F and the use of contraceptives on the basal activity. But no influence of these factors was found on CYP1A2 inducibility. Given that known genetic polymorphisms in CYP1A2 gene were shown to explain only poorly the observed variations in activity, additional genetic factors were studied. SNPs in the CYP oxidoreductase (POR) gene were found to influence CYP1A2 basal activity, but not the induction. Finally, a pathway-based approach allowed to identify SNPs in genes coding for nuclear receptors (CAR, RXRa, VDR, PXR) and induction-mediating receptors (AhR), which significantly influenced CYP1A2 inducibility and basal activity (SNPs in the gene coding for CAR and RXRa). As secondary objective of the study, the pharmacogenetics of nicotine and varenicline is being investigated. Therefore, the nicotine metabolite ratio is used in the attempt to better explain nicotine dependence and the failure/success of quitting smoking. A population pharmacokinetic model is being developed for varenicline, integrating clinical and genetic factors (genes coding for its metabolizing enzymes and transporters), with the purpose of trying to predict efficacy and side effects. These findings suggest that the influence of smoking on pharmacotherapy could be better managed by including clinical and possibly in the future genetic factors, in the assessment of the adaptations needed when a person starts or stops smoking.  - L'arrêt du tabac représente une des principales stratégies pour diminuer l'incidence des maladies causées par celui-ci. Le tabagisme peut influencer la thérapie médicamenteuse par des interactions pharmacocinétiques ou pharmacodynamiques. Parmi les médicaments concernés, il y a ceux métabolisés par le cytochrome P450 (CYP) 1A2 (caféine, théophylline, clozapine, olanzapine, duloxétine, etc), dont l'activité enzymatique est induite par les hydrocarbures aromatiques polycycliques présents dans la fumée de cigarette. Ceci peut se traduire par une diminution de l'effet pharmacologique du traitement et la nécessité d'augmenter les doses d'entretien chez les fumeurs. Au contraire, à l'arrêt de la cigarette, les taux plasmatiques des médicaments peuvent devenir toxiques. L'objectif principal de cette thèse était d'étudier la variabilité interindividuelle dans l'induction du CYP1A2 dans une large cohorte de fumeurs, par la mesure de l'activité du CYP1A2 avant l'arrêt de la cigarette, ainsi qu'un mois après chez les sujets abstinents. Pour ce faire, une étude clinique a été conduite, incluant 194 fumeurs de la population générale dans un programme d'arrêt du tabac offrant des consultations spécifiques et un traitement pharmacologique (nicotine ou varénicline). Une méthode analytique pour la quantification simultanée de la nicotine, ses métabolites et la varénicline dans le plasma par chromatographie liquide couplée à la spectrométrie de masse en tandem à été développée et validée. Cette méthode a été utilisée pour confirmer l'abstinence pendant l'étude et déterminer les taux plasmatiques des médicaments, dans le but d'étudier leur pharmacogénétique. Une grande variabilité interindividuelle dans l'induction du CYP1A2 par la fumée a été observée, parfois sans changement et pouvant aller jusqu'à une diminution d'environ 7 fois l'activité du CYP1A2 après l'arrêt de la cigarette. Plusieurs facteurs cliniques et génétiques ont été étudiés pour essayer d'expliquer cette variabilité. Tout d'abord, on a observé une influence significative: des allèles CYP1A2*1F et *1D, des contraceptifs et du nombre de cigarettes fumées par jour sur l'activité induite du CYP1A2, ainsi que l'influence de l'allèle *1F et des contraceptifs sur l'activité basale. Cependant, aucune influence de ces facteurs n'a été démontrée sur l'inductibilité du CYP1A2. Étant donné que les polymorphismes génétiques du CYP1A2 apportent peu de renseignements sur la variabilité de son activité, des facteurs génétiques supplémentaires ont été étudiés. Des polymorphismes dans le gène POR (CYP oxidoreductase) ont été associés à l'activité basale du CYP1A2, mais pas à l'induction. Finalement, une approche basée sur la voie de signalisation du CYP1A2 a permis d'identifier des polymorphismes dans des gènes codant pour des récepteurs nucléaires (CAR, RXRa, VDR, PXR) et d'autres liés à l'induction (AhR) qui influencent significativement l'inductibilité et l'activité basale (les SNPs du CAR et RXRa). L'objectif secondaire de cette étude était d'investiguer la pharmacogénétique de la nicotine et de la varénicline. Le ratio métabolique de la nicotine est utilisé pour mieux expliquer la dépendance à la nicotine et le succès/échec de l'arrêt de la cigarette. Un modèle pharmacocinétique de population est en cours de développement pour la varénicline, intégrant des facteurs cliniques et génétiques (gènes codant pour ses enzymes de métabolisme et transporteurs), pour tenter de prédire son efficacité et ses effets secondaires. Les résultats de cette thèse suggèrent que l'influence du tabagisme sur la pharmacothérapie serait mieux gérée par l'inclusion des facteurs cliniques et peut-être, dans le futur, génétiques, dans l'évaluation des adaptations nécessaires lorsqu'une personne fume ou arrête de fumer.  - l'arrêt du tabac représente une des principales stratégies pour diminuer l'incidence des maladies causées par celui-ci dans la population. Le tabagisme peut influencer les traitements médicamenteux, soit en modifiant leur élimination par l'organisme, soit en agissant sur leur mode d'action. Parmi les médicaments les plus concernés, on retrouve par exemple: la caféine, la théophylline, la clozapine, l'olanzapine, la duloxétine, dont l'élimination est accélérée par la fumée de cigarette (induction enzymatique). Ceci peut se traduire par une diminution de l'effet du traitement et la nécessité d'en augmenter les doses chez les fumeurs. Au contraire, à l'arrêt de la cigarette, on observe un ralentissement de la fonction enzymatique, qui a pour conséquence une augmentation du taux de médicament dans le sang, pouvant devenir toxique. L'objectif principal de cette thèse était d'étudier comment cette induction par le tabac varie dans une population de fumeurs, par la mesure de l'activité de l'enzyme avant l'arrêt de la cigarette, ainsi qu'un mois après chez les sujets abstinents. Pour ce faire, une étude clinique a été conduite, incluant 194 fumeurs de la population générale dans un programme d'arrêt du tabac offrant des consultations spécifiques et un traitement médicamenteux (nicotine ou varénicline). Une méthode analytique a été mise au point pour mesurer la quantité de nicotine, de ses produits de dégradation et de la varénicline dans le sang des participants à l'étude. De plus, cette méthode a été utilisée pour confirmer l'abstinence pendant l'étude. Une grande variabilité interindividuelle a été observée dans l'induction de l'enzyme par la fumée; il en résulte aucun changement d'activité chez certains sujets après l'arrêt de la cigarette, alors que pour d'autres elle peut être diminuée jusqu'à 7 fois. Plusieurs facteurs cliniques et génétiques ont été étudiés pour essayer d'expliquer cette variabilité. Premièrement, une influence sur l'activité de l'enzyme a été observée pour les contraceptifs hormonaux et le nombre de cigarettes fumées par jour, ainsi que pour certaines variations génétiques dans le gène codant pour l'enzyme d'intérêt, mais il η y a pas eu d'influence sur l'induction. Par la suite, des variations génétiques dans d'autres gènes influençant le fonctionnement de l'enzyme ont été associées soit avec son activité, soit avec son induction par le tabac. Finalement, l'étude propose également d'investiguer si le métabolisme de la nicotine a une influence sur la dépendance, les symptômes de sevrage et le succès/échec de l'arrêt de la cigarette. Des variations génétiques dans les gènes du métabolisme de la varénicline sont également étudiées en lien avec les quantités de varénicline mesurées dans le sang ainsi que les effets du médicament. Ceci permettra peut-être de prédire son efficacité et ses effets secondaires. Les résultats de cette thèse suggèrent que l'influence du tabagisme sur la thérapie médicamenteuse serait mieux gérée en tenant compte des facteurs cliniques et peut-être, dans le futur, de la génétique dans l'adaptation des traitements, que la personne soit fumeuse ou en phase d'arrêt.

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The relationship between schistosomes and their intermediate hosts is an extremely intricate one with strains and species of the parasite depending on particular species of snail, which in turn may vary in their susceptibility to the parasites. In order to gain a better understanding of the epidemiology of the disease we have been investigating the use of molecular markers for snail identification and for studying host-parasite relationships. In this paper we will draw on examples concerning schistosomiasis in West and East Africa to illustrate how a molecular analysis can be used as part of a "total evidence" approach to characterisation of Bulinus species and provide insights into parasite transmission. Particular emphasis is given to ribosomal RNA genes (rRNA), random amplified polymorphic DNA (RAPDs) and the mitochondrial gene cytochrome oxidase I (COI). Snails resistant to infection occur naturally and there is a genetic basis for this resistance. In Biomphalaria glabrata resistance to Schistosoma mansoni is known to be a polygenic trait and we have initiated a preliminary search for snail genomic regions linked to, or involved in, resistance by using a RAPD based approach in conjunction with progeny pooling methods. We are currently characterising a variety of STSs (sequence tagged sites) associated with resistance. These can be used for local linkage and interval mapping to define genomic regions associated with the resistance trait. The development of such markers into simple dot-blot or specific PCR-based assays may have a direct and practical application for the identification of resistant snails in natural populations.

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Primary Care: A New Direction acknowledges the central role of primary care in the future development of our health services and proposes the introduction of an inter-disciplinary team-based approach which will be introduced on a phased basis using existing infrastructure and encouraging the use of public-private partnerships where practical. Download the Report here

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La localització d'òrgans és un tòpic important en l'àmbit de la imatge mèdica per l'ajuda del tractament i diagnosi del càncer. Un exemple es pot trobar en la cal•libració de models farmacoquinètics. Aquesta pot ésser realitzada utilitzant un teixit de referència, on, per exemple en imatges de ressonància magnètica de pit, una correcta segmentació del múscul pectoral és necessària per a la detecció de signes de malignitat. Els mètodes de segmentació basat en atlas han estat altament avaluats en imatge de ressonància magnètica de cervell, obtenint resultats satisfactoris. En aquest projecte, en col•laboració amb el el Diagnostic Image Analysis Group de la Radboud University Nijmegen Medical Centre i la supervisió del Dr. N.Karssemeijer, es presenta la primera aproximació d'un mètode de segmentació basat en atlas per segmentar els diferents teixits visibles en imatges de ressonància magnètica (T1) del pit femení. L'atlas consisteix en 5 estructures (teixit greixòs, teixit dens, cor, pulmons i múscul pectoral) i ha estat utilitzat en un algorisme de segmentació Bayesià per tal de delinear les esmentades estructures. A més a més, s'ha dut a terme una comparació entre un mètode de registre global i un de local, utilitzats tant en la construcció de l'atlas com en la fase de segmentació, essent el primer el que ha presentat millors resultats en termes d'eficiència i precisió. Per a l'avaluació, s'ha dut a terme una comparació visual i numèrica entre les segmentacions obtingudes i les realitzades manualment pels experts col•laboradors. Pel que fa a la numèrica, s'ha emprat el coeficient de similitud de Dice ( mesura que dóna valors entre 0 i 1, on 0 significa no similitud i 1 similitud màxima) i s'ha obtingut una mitjana general de 0.8. Aquest resultat confirma la validesa del mètode presentat per a la segmentació d'imatges de ressonància magnètica del pit.

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Este proyecto final de carrera pertenece al área de Competencias Profesionales y tiene como objetivo el análisis de experiencias de enseñanza-aprendizaje de la competencia de comunicación escrita en currículos TIC. El estudio se compone de tres partes: contextualización, investigación y reflexión. En la contextualización se define el concepto de competencia profesional y se clasifican las competencias genéricas o transversales en: competencias instrumentales, competencias interpersonales y competencias sistémicas. Por último, se indicarán las competencias genéricas para un Ingeniero en Informática, según el libro blanco para el título de grado de Ingeniería Informática. La investigación se ha llevado a cabo en los planes de estudio de Grado en Ingeniería Informática de 20 universidades españolas. En una primera parte se buscará qué universidades contemplan, en sus planes de estudio, competencias genéricas y realizaremos una clasificación. La segunda parte de investigación, se centrará en localizar la competencia de comunicación escrita y los objetivos de competencia de comunicación escrita. En la parte de la reflexión se identificarán las competencias genéricas explícitas e implícitas desarrolladas en el plan de estudios cursado en el itinerario formativo de la UOC. En esta parte también se analizará el modelo educativo de la UOC. El motivo de este proyecto de investigación es comprobar si los planes de estudio de Grado en Ingeniería Informática se han adaptado al EEES, en concreto, ver si las universidades seleccionadas tienen la intención de desarrollar la competencia comunicativa escrita. Esto nos permitirá analizar si un Graduado en Ingeniería Informática ha recibido una formación adecuada para conseguir dicha competencia.

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BACKGROUND: Adducin is a membrane skeleton protein, which consists of either alpha- and beta- or alpha- and gamma-subunits. We investigated whether arterial characteristics might be related to the genes encoding ADD1 (Gly460Trp-rs4961), ADD2 (C1797T-rs4984), and ADD3 (IVS11+386A>G-rs3731566). METHODS: We randomly recruited 1,126 Flemish subjects (mean age, 43.8 years; 50.3% women). Using a wall-tracking ultrasound system, we measured the properties of the carotid, femoral, and brachial arteries. We studied multivariate-adjusted phenotype-genotype associations, using a population- and family-based approach. RESULTS: In single-gene analyses, brachial diameter was 0.15 mm (P = 0.0022) larger, and brachial distensibility and cross-sectional compliance were 1.55 x 10(-3)/kPa (P = 0.013) and 0.017 mm(2)/kPa (P = 0.0029) lower in ADD3 AA than ADD3 GG homozygotes with an additive effect of the G allele. In multiple-gene analyses, the association of brachial diameter and distensibility with the ADD3 G allele occurred only in ADD1 GlyGly homozygotes. Otherwise, the associations between the arterial phenotypes in the three vascular beds and the ADD1 or ADD2 polymorphisms were not significant. In family-based analyses, the multivariate-adjusted heritability was 0.52, 0.38, and 0.30 for brachial diameter, distensibility, and cross-sectional compliance, respectively (P < 0.001). There was no evidence for population stratification (0.07 < or = P < or = 0.96). Transmission of the mutated ADD3 G allele was associated with smaller brachial diameter in 342 informative offspring (-0.12 +/- 0.04 mm; P = 0.0085) and in 209 offspring, who were ADD1 GlyGly homozygotes (-0.14 +/- 0.06 mm; P = 0.018). CONCLUSIONS: In ADD1 GlyGly homozygotes, the properties of the brachial artery are related to the ADD3 (A386G) polymorphism, but the underlying mechanism needs further clarification.

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Every year, debris flows cause huge damage in mountainous areas. Due to population pressure in hazardous zones, the socio-economic impact is much higher than in the past. Therefore, the development of indicative susceptibility hazard maps is of primary importance, particularly in developing countries. However, the complexity of the phenomenon and the variability of local controlling factors limit the use of processbased models for a first assessment. A debris flow model has been developed for regional susceptibility assessments using digital elevation model (DEM) with a GIS-based approach.. The automatic identification of source areas and the estimation of debris flow spreading, based on GIS tools, provide a substantial basis for a preliminary susceptibility assessment at a regional scale. One of the main advantages of this model is its workability. In fact, everything is open to the user, from the data choice to the selection of the algorithms and their parameters. The Flow-R model was tested in three different contexts: two in Switzerland and one in Pakistan, for indicative susceptibility hazard mapping. It was shown that the quality of the DEM is the most important parameter to obtain reliable results for propagation, but also to identify the potential debris flows sources.

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The article is intended to improve our understanding of the reasons underlying the intellectual migration of scientists from well-known cognitive domains to nascent scientific fields. To that purpose we present, first, a number of findings from the sociology of science that give different insights about this phenomenon. We then attempt to bring some of these insights together under the conceptual roof of an actor-based approach linking expected utility and diffusion theory. Intellectual migration is regarded as the rational choice of scientists who decide under uncertainty and on the base of a number of decision-making variables, which define probabilities, costs, and benefits of the migration.

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The Food Safety Knowledge Network (FSKN) was developed through the collaboration of Michigan State University and a professional network of international food industry retailers and manufacturers. The key objective of the FSKN project is to provide technical resources, in a cost effective way, in order to promote food safety in developing countries and for small and less developed companies. FSKN uses a competency based model including a framework, OERs, and assessments. These tools are being used to support face-to-face training, fully online training, and to gauge the learning outcomes of a series of pilot groups which were held in India, Egypt, and China.

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Cigarette smoking is a major risk factor for cardiovascular disease (CVD) and the leading avoidable cause of death worldwide. Exposure to secondhand smoke (SHS) increases the risk of CVD among non-smokers. Smoking cessation benefits all smokers, regardless of age or amount smoked. The excess risk of CVD is rapidly reversible, and stopping smoking after a myocardial infarction reduces an individual's risk of CVD mortality by 36% over 2 years. Smoking cessation is a key component of primary and secondary CVD prevention strategies, but tobacco use often receives less attention from cardiologists than other risk factors, despite the availability of proven treatments that improve smoking cessation rates. Both psychosocial counselling and pharmacotherapy are effective methods to help smokers quit, but they are most effective when used together. The first-line medications licensed to aid smoking cessation, nicotine replacement therapy, bupropion and varenicline, are effective in and appropriate for patients with CVD. An evidence-based approach for physicians is to routinely ask all patients about smoking status and SHS exposure, advise all smokers to quit and all patients to adopt smoke-free policies for their home and car, and offer all smokers in the office or hospital brief counselling, smoking cessation pharmacotherapy, and referral to local programmes where psychosocial support can be sustained in person or by telephone. Like other chronic diseases, tobacco use requires a long-term management strategy. It deserves to be managed as intensively as other CVD risk factors.

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This research studies from an internal view based on the Competency-Based Perspective (CBP), key organizational competencies developed for small new business. CBP is chosen in an attempt to explain the differences characterizing the closed companies from the consolidated ones. The main contribution of this paper is the definition of a set of key organizational competencies for new ventures from services and low technology based sectors. Using the classification proposed by [1] and a review of the entrepreneurship literature, the main competencies were defined and classified as: managerial, input-based, transformation-based, and output-based competencies. The proposed model for evaluating new ventures organizational competence is tested by means of Structural Equation

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L'article és una reflexió sobre els requisits de formació dels professionals que demana la societat del coneixement. Un dels objectius més importants que ha de tenir la universitat en la societat del coneixement és la formació de professionals competents que tinguin prou eines intel·lectuals per a enfrontar-se a la incertesa de la informació, a la consciència que aquesta té una data de caducitat a curt termini i a l'ansietat que això provoca. Però, a més, també han de ser capaços de definir i crear les eines de treball amb què donaran sentit i eficàcia a aquest coneixement mudable i mutant. Per això, l'espai europeu d'ensenyament superior prioritza la competència transversal del treball col·laboratiu amb l'objectiu de promoure un aprenentatge autònom, compromès i adaptat a les noves necessitats de l'empresa del segle xxi. En aquest context, es presenta l'entorn teòric que fonamenta el treball desenvolupat a la plataforma informàtica ACME, que uneix el treball col·laboratiu i l'aprenentatge semipresencial o blended learning. Així mateix, es descriuen amb detall alguns exemples de wikis, paradigma del treball col·laboratiu, fets en assignatures impartides per la Universitat de Girona en l'espai virtual ACME

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BACKGROUND A catheter-based approach after fibrinolysis is recommended if fibrinolysis is likely to be successful in patients with acute ST-elevation myocardial infarction. We designed a 2x2 randomized, open-label, multicenter trial to evaluate the efficacy and safety of the paclitaxel-eluting stent and tirofiban administered after fibrinolysis but before catheterization to optimize the results of this reperfusion strategy. METHODS AND RESULTS We randomly assigned 436 patients with acute ST-elevation myocardial infarction to (1) bare-metal stent without tirofiban, (2) bare-metal stent with tirofiban, (3) paclitaxel-eluting stent without tirofiban, and (4) paclitaxel-eluting stent with tirofiban. All patients were initially treated with tenecteplase and enoxaparin. Tirofiban was started 120 minutes after tenecteplase in those patients randomly assigned to tirofiban. Cardiac catheterization was performed within the first 3 to 12 hours after inclusion, and stenting (randomized paclitaxel or bare stent) was applied to the culprit artery. The primary objectives were the rate of in-segment binary restenosis of paclitaxel-eluting stent compared with that of bare-metal stent and the effect of tirofiban on epicardial and myocardial flow before and after mechanical revascularization. At 12 months, in-segment binary restenosis was similar between paclitaxel-eluting stent and bare-metal stent (10.1% versus 11.3%; relative risk, 1.06; 95% confidence interval, 0.74 to 1.52; P=0.89). However, late lumen loss (0.04+/-0.055 mm versus 0.27+/-0.057 mm, P=0.003) was reduced in the paclitaxel-eluting stent group. No evidence was found of any association between the use of tirofiban and any improvement in the epicardial and myocardial perfusion. Major bleeding was observed in 6.1% of patients receiving tirofiban and in 2.7% of patients not receiving it (relative risk, 2.22; 95% confidence interval, 0.86 to 5.73; P=0.14). CONCLUSIONS This trial does not provide evidence to support the use of tirofiban after fibrinolysis to improve epicardial and myocardial perfusion. Compared with bare-metal stent, paclitaxel-eluting stent significantly reduced late loss but appeared not to reduce in-segment binary restenosis. CLINICAL TRIAL REGISTRATION URL: http://clinicaltrials.gov. Unique identifier: NCT00306228.

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Malaria is a mosquito-borne infectious disease caused by Plasmodium parasites transmitted by the infectious bite of Anopheles mosquitoes. Vector control of malaria has predominantly focused on targeting the adult mosquito through insecticides and bed nets. However, current vector control methods are often not sustainable for long periods so alternative methods are needed. A novel biocontrol approach for mosquito-borne diseases has recently been proposed, it uses maternally inherited endosymbiotic Wolbachia bacteria transinfected into mosquitoes in order to interfere with pathogen transmission. Transinfected Wolbachia strains in Aedes aegypti mosquitoes, the primary vector of dengue fever, directly inhibit pathogen replication, including Plasmodium gallinaceum, and also affect mosquito reproduction to allow Wolbachia to spread through mosquito populations. In addition, transient Wolbachia infections in Anopheles gambiae significantly reduce Plasmodium levels. Here we review the prospects of using a Wolbachia-based approach to reduce human malaria transmission through transinfection of Anopheles mosquitoes.