276
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Basora M, Pereira A, Soriano A, MartÃnez-Pastor JC, Sánchez-Etayo G, Tió M, Salazar F. Allogeneic blood transfusion does not increase the risk of wound infection in total knee arthroplasty. Vox Sang 2010; 98:124-9. [DOI: 10.1111/j.1423-0410.2009.01242.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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277
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Albuquerque C, Ferreira A, Pereira A, Oliveira C. P03-195 - Reasons associated with alcohol use in young Portuguese students. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)71249-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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278
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Pereira A, Rehder P, Dias C, de Fugueiredo LP, Silva E. Regional lactate and oxygen saturation gradients: preliminary experimental data. Crit Care 2010. [PMCID: PMC2934340 DOI: 10.1186/cc8392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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279
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Lopes M, Pereira A, Wang Y, Guilleminault C, I L. 192 SLEEP COMPLAINTS WITH SUICIDAL BEHAVIOR AMONG CHILDREN AND ADOLESCENTS WITH DEPRESSIVE EPISODES. Sleep Med 2009. [DOI: 10.1016/s1389-9457(09)70194-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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280
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Smith JT, Li Q, Pereira A, Clarke IJ. Kisspeptin neurons in the ovine arcuate nucleus and preoptic area are involved in the preovulatory luteinizing hormone surge. Endocrinology 2009; 150:5530-8. [PMID: 19819940 DOI: 10.1210/en.2009-0712] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Kisspeptin is the product of the Kiss1 gene that regulates GnRH secretion. In sheep, Kiss1 mRNA-expressing cells are found in the preoptic area (POA) and arcuate nucleus (ARC), and expression is up-regulated in the caudal ARC during the periovulatory period. We hypothesized that kisspeptin neurons in the ARC are activated by estradiol-17beta prior to the preovulatory LH surge. Ovariectomized ewes were treated as follows: 1) estradiol-17beta implants (sc 2 wk) to cause tonic negative feedback; 2) vehicle (no estrogen negative or positive feedback); or 3) positive feedback/GnRH surge-inducing injection of estradiol-17beta (50 microg iv). For groups 2 and 3, brains were collected 1 h after treatment and kisspeptin/Fos immunoreactivity was examined. In the caudal and mid-ARC, the percentage of kisspeptin cells that were Fos immunoreactive increased after acute estradiol treatment (group 3) over that seen in the other two groups. Kisspeptin/Fos colocalization was also quantified in ewes during the luteal and late-follicular phase of the estrous cycle, showing a trend toward an increase in colocalization in the late-follicular phase. Kisspeptin/Fos colocalization was similar in the POA across groups in both experiments. Analysis of Kiss1 mRNA by in situ hybridization revealed an increase in expression during the late-follicular phase in the caudal ARC and POA. These data suggest kisspeptin neurons located in the caudal extent of the ARC are involved in generating the positive feedback preovulatory GnRH/LH surge in the ewe, but there may also be a role for Kiss1-expressing cells in the POA.
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281
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Pereira A, Araújo R, Favorito S, Bertolla P, Lallo M. Ocorrência de microsporídios em pequenos mamíferos silvestres no Estado de São Paulo. ARQ BRAS MED VET ZOO 2009. [DOI: 10.1590/s0102-09352009000600035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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282
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Borges CM, Candoso F, Ferreira HL, Nogueira DS, Pereira A, Reis E. Implementation of a complexity classification system for inpatient rehabilitation facilities for financing purposes - comparing scales. BMC Health Serv Res 2009. [PMCID: PMC2773578 DOI: 10.1186/1472-6963-9-s1-a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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283
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Pereira A, Rawson J, Jakubowska A, Clarke IJ. Estradiol-17beta-responsive A1 and A2 noradrenergic cells of the brain stem project to the bed nucleus of the stria terminalis in the ewe brain: a possible route for regulation of gonadotropin releasing hormone cells. Neuroscience 2009; 165:758-73. [PMID: 19857554 DOI: 10.1016/j.neuroscience.2009.10.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2009] [Revised: 10/13/2009] [Accepted: 10/14/2009] [Indexed: 11/16/2022]
Abstract
We have studied brain stem cells in the ewe brain that project to the bed nucleus of the stria terminalis (BNST) and determined if these cells are activated by estradiol-17beta. This would predicate an indirect role in the estradiol-17beta regulation of gonadotropin releasing hormone (GnRH) cells, since these receive input from the BNST. Ovariectomized ewes received 50 mug estradiol-17beta benzoate (i.m.) 1 h prior to brain collection, so that activated cells could be identified by Fos immunohistochemistry. Retrograde tracer (FluoroGold; FG), was injected into the three divisions of the BNST and labeled cells were mapped to the A1 and A2 regions and the parabrachial nucleus (PBN) of the brain stem. With FG injection into the dorsal and lateral BNST, all FG-containing cells in the caudal A1 and 45% of those in A2 stained for dopamine-beta-hydroxylase (DBH), indicating noradrenergic type. No FG-labelled cells in the PBN were DBH-positive. In A1 and A2 respectively, 42% and 46% of FG-labelled cells were Fos-positive, with no double-labeling in cells of the PBN. In ewes receiving FG injections into the ventral BNST, estrogen receptor (ER)alpha-immunoreactive nuclei were found in 82% of A1-FG labeled and 38% of A2-FG labeled cells. No FG-labelled cells of the PBN were ERalpha-positive. Anterograde tracing from A1 with microruby injection identified projections to the PBN, BNST and preoptic area (POA). Thus, A1 and A2 noradrenergic neurons project to the BNST in the ewe brain, express ERalpha and are activated by estradiol-17beta. These noradrenergic, estrogen-responsive cells may provide indirect input to GnRH cells, via the BNST.
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284
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Bien-Aimé K, Pereira A, Belin C, Gallais L, Grua P, Tovena-Pecault I, Néauport J, Fargin E. Impact of outgassing organic contamination on laser induced damage of optics. ACTA ACUST UNITED AC 2009. [DOI: 10.1117/12.836384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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285
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Abreu A, Alves J, Pereira A, Karakashev D, Alves M, Angelidaki I. Engineered heat treated methanogenic granules (EHTG): a promising biotechnological approach for high rate extreme thermophilic (70°C) biohydrogen production in expanded granular sludge bed (EGSB) reactors. N Biotechnol 2009. [DOI: 10.1016/j.nbt.2009.06.558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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286
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Pereira A, Machado P, Araújo A, Coelho A, Teixeira A, Medeiros R. 9059 8473T>C COX-2 polymorphism and susceptibility for lung cancer: a strategy for individualised chemoprevention. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71772-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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287
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Guerra AS, Ramos L, Fonseca S, Ferreira J, Casal D, Silva R, Rasteiro D, Caiado C, Moniz P, Fradinho N, Pereira A, Mouzinho M, Antunes P. Dermal regeneration template for lower extremity burns. Burns 2009. [DOI: 10.1016/j.burns.2009.06.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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288
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Lebrun I, Marques-Porto R, Pereira AS, Pereira A, Perpetuo EA. Bacterial toxins: an overview on bacterial proteases and their action as virulence factors. Mini Rev Med Chem 2009; 9:820-8. [PMID: 19519507 DOI: 10.2174/138955709788452603] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bacterial pathogenicity is a result of a combination of factors, including resistance to environmental threats and to the host's defenses, growth capability, localization in the host, tissue specificity, resource obtaining mechanisms and the bacterium's own defenses to aggression. A variety of bacterial components, often specific to each strain, are involved in the microorganism's survival, adhesion and growth in the host. Many of them are harmful and, therefore, are called virulence factors. The effects caused by the virulence factors determine the degree of aggressivity of the strain. In many cases the virulence factors are secreted proteins or enzymes, sometimes performing very specific functions. The enzymatic activity is directed to specific proteins from cell membranes, synaptic vesicle fusion proteins, among other important targets. One of the most toxic bacterial proteins is secreted by Clostridium botulinum, targeted to synaptic vesicle fusion proteins, cleaving them with a zinc-metalloprotease activity, which results in severe neurotoxic effects with a lethal dose as low as eight nanograms per kilogram of body weight. The tetanus neurotoxin acts in a similar way but is less active and Bacillus anthracis also presents a potent metalloprotease activity. In this work we describe a selection of these specially interesting and important bacterial proteins and proteases, stressing their relevance in the pathological process and in medical studies.
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289
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Lamy E, da Costa G, Santos R, Capela E Silva F, Potes J, Pereira A, Coelho AV, Sales Baptista E. Sheep and goat saliva proteome analysis: a useful tool for ingestive behavior research? Physiol Behav 2009; 98:393-401. [PMID: 19615390 DOI: 10.1016/j.physbeh.2009.07.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2008] [Revised: 06/25/2009] [Accepted: 07/08/2009] [Indexed: 01/22/2023]
Abstract
Sheep and goats differ in diet selection, which may reflect different abilities to deal with the ingestion of plant secondary metabolites. Although saliva provides a basis for immediate oral information via sensory cues and also a mechanism for detoxification, our understanding of the role of saliva in the pre-gastric control of the intake of herbivores is rudimentary. Salivary proteins have important biological functions, but despite their significance, their expression patterns in sheep and goats have been little studied. Protein separation techniques coupled to mass spectrometry based techniques have been used to obtain an extensive comprehension of human saliva protein composition but far fewer studies have been undertaken on animals' saliva. We used two-dimensional electrophoresis gel analysis to compare sheep and goats parotid saliva proteome. Matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) and liquid chromatography tandem mass spectrometry (LC-MS/MS) were used to identify proteins. From a total of 260 sheep and 205 goat saliva protein spots, 117 and 106 were identified, respectively. A high proportion of serum proteins were found in both salivary protein profiles. Major differences between the two species were detected for proteins within the range of 25-35 kDa. This study presents the parotid saliva proteome of sheep and goat and highlights the potential of proteomics for investigation relating to intake behavior research.
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290
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Rivera J, Roig MJS, Monteagudo J, Pereira A, Moraleda JM, Reverter JC, Vicente V. Absence of Effect of DDAVP Infusion on Platelet Glycoprotein Ib/IX and IIb/IIIa Complexes, and their Interaction with Newly Released von Willebrand Factor. Platelets 2009; 4:219-24. [DOI: 10.3109/09537109309013221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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291
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Wald RM, Redington AN, Pereira A, Provost YL, Paul NS, Oechslin EN, Silversides CK. Right ventricular outflow tract obstruction should be considered in assessing influence of pulmonary regurgitation on right ventricular volumes: reply. Eur Heart J 2009. [DOI: 10.1093/eurheartj/ehp231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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292
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Pereira A, Martinez T, Vieira L. Abstract: P1282 CHOLESTEROL – A EPIDEMIOLOGICAL STUDY IN CHILDREN AND ADOLESCENTS. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71299-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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293
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Pereira A, Martinez T, Sposito A, Nascimento H. Abstract: P806 EVALUATION OF PROTEIN C HIGHLY SENSITIVE CHILDREN AND ADOLESCENTS IN MUNICIPALITY OF ITAPETININGA-BRAZIL. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70961-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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294
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Pereira A, Guedes A, Verreschi I, Santos R, Martinez T. Abstract: P1252 OBESITY AND ITS ASSOCIATION WITH CARDIOVASCULAR RISK FACTORS IN SCHOOLCHILDREN FROM BRAZIL. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71269-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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295
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Castro R, Vega J, Pereira A, Portas A. Data distribution architecture based on standard real time protocol. FUSION ENGINEERING AND DESIGN 2009. [DOI: 10.1016/j.fusengdes.2008.12.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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296
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Zuttin R, Rebelo A, Catai A, Moreno M, Tamburús N, Souza R, Santos M, Kunz V, Salviati M, Pereira A, Zamunér A, Sakabe D, Neves V, Silva E. RELATIONSHIP OF AGE AND THE AUTONOMIC MODULATION OF HEART RATE (HR) BETWEEN WOMEN. Maturitas 2009. [DOI: 10.1016/s0378-5122(09)70246-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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297
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Pereira A, Pirraco R, Viterbo T, Gomes L, Borges Pereira F, Salgado L, Carvalho L, Trigo L, Lencart J. 107 poster: Comparative Study Between CT Image-Based and Orthogonal Image Based Dosimetry for Uterovaginal Brachytherapy Treatments. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(15)34364-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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298
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299
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Singh T, Schroeder F, Pereira A, Bhide A. Antenatal blood patch in a pregnant woman with spontaneous intracranial hypotension. Int J Obstet Anesth 2009; 18:165-8. [DOI: 10.1016/j.ijoa.2008.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2008] [Revised: 09/12/2008] [Accepted: 09/15/2008] [Indexed: 11/28/2022]
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300
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Pereira A. Efficacy of different plasma sources in the treatment of thrombotic thrombocytopenic purpura. ACTA ACUST UNITED AC 2009. [DOI: 10.1111/j.1751-2824.2009.01219.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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