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Lobo S, Soares M, Torelly A, Mello P, Silva U, Teles J, Silva E, Caruso P, Friedman G, Souza P, Rea-Neto A, Vianna A, Maia M, Salluh J. Outcomes of cancer patients admitted to intensive care units with severe acute kidney injury. Crit Care 2010. [PMCID: PMC2934069 DOI: 10.1186/cc8654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Silva E, Salomao R, Rigato O, Ferreira E, Mohovic T, Callas S, Tereran N, Assuncao M, Delbiagi N, Colombari F, Silva C, Cal R, Machado F. Prognostic factors for very short-term mortality in severe sepsis. Crit Care 2010. [PMCID: PMC2934065 DOI: 10.1186/cc8651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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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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Silva E, Leitão S, Tenreiro T, Pomba C, Nunes T, Lopes da Costa L, Mateus L. Genomic and phenotypic characterization of Escherichia coli isolates recovered from the uterus of puerperal dairy cows. J Dairy Sci 2009; 92:6000-10. [DOI: 10.3168/jds.2009-2358] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Silva E, Sterry RA, Kolb D, Mathialagan N, McGrath MF, Ballam JM, Fricke PM. Effect of interval to resynchronization of ovulation on fertility of lactating Holstein cows when using transrectal ultrasonography or a pregnancy-associated glycoprotein enzyme-linked immunosorbent assay to diagnose pregnancy status. J Dairy Sci 2009; 92:3643-50. [PMID: 19620645 DOI: 10.3168/jds.2008-1704] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The objective of this study was to compare 2 strategies for resynchronization of ovulation based on nonpregnant diagnoses using transrectal ultrasonography or a pregnancy-associated glycoprotein (PAG) ELISA. Lactating Holstein cows (n = 1,038) were submitted for first postpartum timed artificial insemination (TAI) using a Presynch + Ovsynch protocol. After the initial breeding, cows were randomly assigned to initiate resynchronization 25 d (D25) or 32 d (D32) later. Pregnancy status of cows initiating Resynch 25 d after TAI was determined 27 d after TAI by using a PAG ELISA, whereas pregnancy status of cows initiating Resynch 32 d after TAI was determined 39 d after TAI using transrectal ultrasonography. Cows diagnosed as not pregnant continued the Resynch protocol by receiving an injection of PGF(2 alpha) 7 d after the initial GnRH injection and a second GnRH injection 54 h after the PGF(2 alpha) injection. Cows in both treatments were inseminated approximately 16 h after the second GnRH injection. Blood samples for analysis of progesterone (P(4)) were collected at the first GnRH injection of each Resynch protocol. Pregnancies per AI (P/AI) of nonpregnant cows initiating Resynch 25 vs. 32 d after first postpartum TAI did not differ 39 d after TAI and were 28.3 vs. 30.9% for D25 vs. D32 cows, respectively. Mean P(4) at the first GnRH injection of Resynch was greater for D32 than for D25 cows (3.67 +/- 0.22 vs. 2.83 +/- 0.22 ng/mL), indicating that the Resynch treatments were initiated at different stages of the estrous cycle. After blocking P(4) concentration into low (<1.0 ng/mL) or high (>or=1.0 ng/mL) classes, P(4) class was not found to affect P/AI 39 d after TAI. Early resynchronization was not found to affect P/AI 39 d after TAI; however, early resynchronization did decrease days between inseminations and the interval from the initial nonpregnant diagnosis to conception. Earlier detection of nonpregnant cows using the PAG ELISA in conjunction with a TAI resynchronization program may improve the rate at which cows become pregnant in a dairy herd compared with transrectal ultrasonography conducted at a later stage after TAI.
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Espinoza-Navarro O, Rodríguez H, Rodríguez M, Silva E, Luque A. Alteration of the Reproductive Patterns in Drosophila melanogaster by Effects of High Concentrations of Boron on In Vitro Cultured Medium. INT J MORPHOL 2009. [DOI: 10.4067/s0717-95022009000300021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Flores-Morales P, Gutiérrez-Oliva S, Silva E, Toro-Labbé A. Insights into the Maillard reaction. The mechanism of Schiff's base formation from the reaction force perspective. Mol Phys 2009. [DOI: 10.1080/00268970902980060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Varela P, Silva E, Velho G, Moreira C, do Amaral B, Massa A. Melkersson-Rosenthal syndrome treated with sulphasalazine. J DERMATOL TREAT 2009. [DOI: 10.3109/09546639909056010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Silva E, Mackay B. Neuroendocrine (Merkel Cell) Carcinomas of the Skin: An Ultrastructural Study of Nine Cases. Ultrastruct Pathol 2009; 2:1-9. [PMID: 16830443 DOI: 10.3109/01913128109031497] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Nine neuroendocrine tumors of the skin were examined by light and electron microscopy. The patients (7 males and 2 females) had an average age of 57 years. Seven tumors were located in the head and neck region. Light microscopic examination showed sheets of cells. In 4 cases, a tendency to form small groups of cells was observed. Contact with the epidermis was seen in only 2 cases. The dominant ultrastructural feature was the presence of cytoplasmic processes that contained membrane-bound granules 100-200 nm. Three tumors recurred locally, and in 7 patients, regional nodal metastases occurred. Three patients died of disseminated disease.
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Dharmaraj S, Silva E, Pina AL, Li YY, Yang JM, Carter RC, Loyer M, El-Hilali H, Traboulsi E, Sundin O, Zhu D, Koenekoop RK, Maumenee IH. Mutational analysis and clinical correlation in Leber congenital amaurosis. Ophthalmic Genet 2009. [DOI: 10.1076/1381-6810(200009)2131-zft135] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Camargo L, Marra A, Büchele G, Sogayar A, Cal R, de Sousa J, Silva E, Knobel E, Edmond M. Double-lumen central venous catheters impregnated with chlorhexidine and silver sulfadiazine to prevent catheter colonisation in the intensive care unit setting: a prospective randomised study. J Hosp Infect 2009; 72:227-33. [DOI: 10.1016/j.jhin.2009.03.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Accepted: 03/02/2009] [Indexed: 10/20/2022]
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Silva E, Sitges M, Mont L, Delgado V, Tamborero D, Vidal B, Godoy M, Poyatos S, Pare C, Azqueta M, Brugada J. Quantification of left ventricular asynchrony throughout the whole cardiac cycle with a computed algorithm: application for optimizing resynchronization therapy. J Cardiovasc Electrophysiol 2009; 20:1130-6. [PMID: 19549037 DOI: 10.1111/j.1540-8167.2009.01507.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Measurement of left ventricular (LV) asynchrony is usually determined on single time points from spectral tissue Doppler imaging (TDI) scans that are frequently difficult to identify or not representative of the whole cardiac cycle. Our aim was to validate a new asynchrony index that evaluates the motion of the LV walls throughout the whole cardiac cycle. METHODS AND RESULTS Ten healthy volunteers and 50 patients undergoing cardiac resynchronization therapy (CRT) were studied with TDI. Wall displacement tracings from the septal and lateral LV walls were analyzed. Cross-correlation was calculated and 2 indices were obtained to assess LV asynchrony: the time delay and the superposition index (SI) between wall displacements. These results were compared between healthy volunteers and CRT patients, and between responders and nonresponders to CRT. Also, the optimal interventricular (VV) interval was based upon the best matching level. Volunteers showed lower asynchrony indices (83 +/- 2% SI, 17 +/- 8 ms time delay) as compared with CRT patients (63 +/- 15% SI, 73 +/- 60 ms time delay, P < 0.05). Responders also had more LV dyssynchrony than nonresponders (58 +/- 15% SI and 92 +/- 66 ms vs 68 +/- 12% and 48 +/- 34 ms, P < 0.05). The optimum VV interval selected by the computed algorithm showed an excellent concordance (Kappa = 0.90, P < 0.05) with that determined by other validated methods for optimizing the programming of CRT devices. CONCLUSIONS This approach allows measurement of LV intraventricular asynchrony throughout the cardiac cycle, being useful to determine the optimum VV interval and to select candidates for CRT.
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Greco OT, Jacob JLB, Parro A, Ruiz MA, Lago MR, Santos AB, Takeda RT, Abreu AC, Berruezo A, Vatasescu RG, Mont L, Tamborero D, Sitges M, Andreu D, Silva E, Brugada J, Castellant P, Orhan E, Fatemi M, Etienne Y, Valls-Bertault V, Blanc JJ, Vatasescu RG, Berruezo A, Iorgulaescu C, Vasile A, Constantinescu D, Stanciu A, Dumitrescu N, Dorobantu M, Khan FZ, Read PA, Virdee MS, Fynn SP, Dutka DP, Meiltz A, Sunthorn H, Burri H, Schaerer N, Shah D, Mihalcz A, Kassai I, Foldesi CS, Kardos A, Szili-Torok T, Van Bommel RJ, Delgado V, Borleffs CJW, Schalij MJ, Gorcsan J, Bax JJ, Sideris S, Skiadas I, Gatzoulis K, Vlasseros I, Trantalis G, Kalovidouris N, Stefanadis C, Kallikazaros I, Khan FZ, Read PA, Virdee MS, Fynn SP, Dutka DP, Laish-Farkash A, Nof E, Luria D, Yonat H, Fridman M, Eldar M, Antzelevitch C, Glikson M, Van Meerwijk WPM, Umar S, Van Der Laarse A, Pijnappels DA, Schalij MJ, Ypey DL, Partemi S, Berne P, Berruezo A, Batlle M, Mont L, Oliva A, Brugada R, Brugada J, Saravanan P, Pollock R, O'neill S, Davidson N, Dobrzynski H, Lacunza Ruiz FJ, Gimeno-Blanes JR, Garcia-Alberola A, Oliva-Sandoval MJ, Garcia-Molina E, Madrid E, Sabater-Molina M, Valdes M, De Roest G, Russel IK, Gotte MJW, Allaart CP, De Cock CC, Van Rossum AC, Mcgrew FA, Johnson EJ, Coppess MA, Hamilton B, Charlton TA, Charlton S, Sims JJ, Perrotta L, Ricciardi G, Pieragnoli P, Sofi F, Gori AM, Abbate R, Padeletti L, Michelucci A, Buck S, Maass AH, Schoonderwoerd BA, Van Veldhuisen DJ, Van Gelder IC, Ando K, Soga Y, Arita T, Goya M, Doi T, Shizuta S, Kimura T, Nobuyoshi M. Poster Session 4: CRT II. Europace 2009. [DOI: 10.1093/europace/euq241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sousa S, Thompson G, Silva E, Freire L, Lopes D, Correia da Costa JM, Castro A, Carvalheira J, Canada N. Determination of the More Adequate Modified Agglutination Test Cut-off for Serodiagnosis ofToxoplasma gondiiInfection in Sheep. Zoonoses Public Health 2009; 56:252-6. [DOI: 10.1111/j.1863-2378.2008.01187.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Anselme F, Padeletti L, Goscinska-Bis K, Wintherhalter M, Renesto F, Ritter P, Bocchiardo M, Schauerte P, Meyer Zu Vilsendorf D, Militello C, Lippert M, Czygan G, Gaita F, Stellbrink CH, Perzanowski C, Zilo P, Silva E, Sitges M, Delgado V, Tamborero D, Vidal B, Godoy MA, Mont L, Brugada J, Vollkron M, Lippert M, Muessig D, Orlov MV, Di Cori A, Zucchelli G, Segreti L, Soldati E, Bandera F, Solarino G, De Lucia R, Bongiorni MG, Silva E, Tamborero D, Sitges M, Andreu D, Vidal B, Berruezo A, Mont L, Brugada J, Rademakers L, Van Hunnik A, Lampert A, Kuiper M, Auricchio A, Echt D, Maessen J, Prinzen F, Zucchelli G, Soldati E, Segreti L, Di Cori A, Coluccia G, De Lucia R, Solarino G, Bongiorni MG, Johar S, Jones DG, Lyne JC, Kaba RA, Till J, Clague JR. Moderated Posters: Cardiac resynchronisation therapy. Europace 2009. [DOI: 10.1093/europace/euq218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Vidal B, Tolosana JM, Sitges M, Delgado V, Silva E, Castel MA, Brugada J, Mont L, Khan FZ, Read PA, Salahshouri P, Bayrakdar MA, Matousova D, Virdee MS, Fynn SP, Dutka DP, Clemens M, Nagy-Balo E, Herczku C, Kun C, Toth Z, Edes I, Csanadi Z, Theilade J, Holmegard HN, Dunoe M, Olesen MS, Haunsoe S, Benn M, Svendsen JH, Digby G, Daubney ME, Baggs J, Campbell D, Simpson CS, Redfearn DP, Abdollah H, Baranchuk A, Seifert M, Schau T, Moeller V, Meyhoefer J, Fleck E, Butter C, Raffa S, Grosse A, Brunelli M, Regoli F, Schreiber M, Wauters K, Geller JC, Carmo P, Cavaco D, Adragao P, Parreira L, Santos K, Morgado F, Marcelino S, Silva A, Muto C, Celentano E, Canciello M, Carreras G, Calvanese R, Ascione L, Accadia M, Tuccillo B, Froehlig G, Sperzel J, Vogt J, Anselme F, Ducloux P, Ziglio F, Krumel F, Derval N, Steendijk P, Bordachar P, Deplagne A, Ritter P, Clementy J, Haissaguerre M, Jais P, Ismer B, Koerber T, Heinke M, Voss W, Trautwein U, Nienaber CA, Chang PC, Lin FC, Wang CC, Sargento L, Carpinteiro L, Marques P, Veiga A, Cortez-Dias N, Sousa J, Castellant P, Orhan E, Fatemi M, Etienne Y, Valls-Bertault V, Blanc JJ, Buck S, Maass AH, Schoonderwoerd BA, Van Veldhuisen DJ, Van Gelder IC, Vatasescu RG, Berruezo A, Mont L, Tamborero D, Tolosana JM, Brugada J, Tolosana JM, Mont L, Sitges M, Berruezo A, Delgado V, Tamborero D, Morales M, Brugada J, Teixeira R, Antonio N, Coelho L, Lourenco C, Ventura M, Cristovao J, Elvas L, Providencia LA, Matsushita K, Ishikawa T, Sumita S, Yamakawa Y, Matsumoto K, Hosoda J, Miki Y, Umemura S. Poster Session 4: CRT I. Europace 2009. [DOI: 10.1093/europace/euq240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Klimusina J, Faletra F, Regoli F, Averaimo M, Evangelista A, Moccetti T, Auricchio A, Klimusina J, Faletra F, Conca C, Evangelista A, Pasotti E, Pedrazzini G, Moccetti T, Auricchio A, Silva E, Sitges M, Delgado V, Tamborero D, Vidal B, Godoy MA, Mont L, Brugada J, Occhetta E, Bortnik M, Leverone M, Rondano E, Plebani L, Marino P, Leclercq C, Donal E, Cazeau S, Giorgis L, Hernandez A, Jauvert G, Mabo P, Khan FZ, Read PA, Salahshouri P, Bayrakdar MA, Virdee MS, Fynn SP, Dutka DP. Abstracts: Pacing indications and outcome. Europace 2009. [DOI: 10.1093/europace/euq220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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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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Bautista LE, Casas JP, Herrera VM, Miranda JJ, Perel P, Pichardo R, González A, Sanchez JR, Ferreccio C, Aguilera X, Silva E, Oróstegui M, Gómez LF, Chirinos JA, Medina-Lezama J, Pérez CM, Suárez E, Ortiz AP, Rosero L, Schapochnik N, Ortiz Z, Ferrante D. The Latin American Consortium of Studies in Obesity (LASO). Obes Rev 2009; 10:364-70. [PMID: 19438980 PMCID: PMC2687094 DOI: 10.1111/j.1467-789x.2009.00591.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Current, high-quality data are needed to evaluate the health impact of the epidemic of obesity in Latin America. The Latin American Consortium of Studies of Obesity (LASO) has been established, with the objectives of (i) Accurately estimating the prevalence of obesity and its distribution by sociodemographic characteristics; (ii) Identifying ethnic, socioeconomic and behavioural determinants of obesity; (iii) Estimating the association between various anthropometric indicators or obesity and major cardiovascular risk factors and (iv) Quantifying the validity of standard definitions of the various indexes of obesity in Latin American population. To achieve these objectives, LASO makes use of individual data from existing studies. To date, the LASO consortium includes data from 11 studies from eight countries (Argentina, Chile, Colombia, Costa Rica, Dominican Republic, Peru, Puerto Rico and Venezuela), including a total of 32,462 subjects. This article describes the overall organization of LASO, the individual studies involved and the overall strategy for data analysis. LASO will foster the development of collaborative obesity research among Latin American investigators. More important, results from LASO will be instrumental to inform health policies aiming to curtail the epidemic of obesity in the region.
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Herrera VM, Casas JP, Miranda JJ, Perel P, Pichardo R, González A, Sanchez JR, Ferreccio C, Aguilera X, Silva E, Oróstegui M, Gómez LF, Chirinos JA, Medina-Lezama J, Pérez CM, Suárez E, Ortiz AP, Rosero L, Schapochnik N, Ortiz Z, Ferrante D, Diaz M, Bautista LE. Interethnic differences in the accuracy of anthropometric indicators of obesity in screening for high risk of coronary heart disease. Int J Obes (Lond) 2009; 33:568-76. [PMID: 19238159 PMCID: PMC2687093 DOI: 10.1038/ijo.2009.35] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Cut points for defining obesity have been derived from mortality data among Whites from Europe and the United States and their accuracy to screen for high risk of coronary heart disease (CHD) in other ethnic groups has been questioned. OBJECTIVE To compare the accuracy and to define ethnic and gender-specific optimal cut points for body mass index (BMI), waist circumference (WC) and waist-to-hip ratio (WHR) when they are used in screening for high risk of CHD in the Latin-American and the US populations. METHODS We estimated the accuracy and optimal cut points for BMI, WC and WHR to screen for CHD risk in Latin Americans (n=18 976), non-Hispanic Whites (Whites; n=8956), non-Hispanic Blacks (Blacks; n=5205) and Hispanics (n=5803). High risk of CHD was defined as a 10-year risk > or =20% (Framingham equation). The area under the receiver operator characteristic curve (AUC) and the misclassification-cost term were used to assess accuracy and to identify optimal cut points. RESULTS WHR had the highest AUC in all ethnic groups (from 0.75 to 0.82) and BMI had the lowest (from 0.50 to 0.59). Optimal cut point for BMI was similar across ethnic/gender groups (27 kg/m(2)). In women, cut points for WC (94 cm) and WHR (0.91) were consistent by ethnicity. In men, cut points for WC and WHR varied significantly with ethnicity: from 91 cm in Latin Americans to 102 cm in Whites, and from 0.94 in Latin Americans to 0.99 in Hispanics, respectively. CONCLUSION WHR is the most accurate anthropometric indicator to screen for high risk of CHD, whereas BMI is almost uninformative. The same BMI cut point should be used in all men and women. Unique cut points for WC and WHR should be used in all women, but ethnic-specific cut points seem warranted among men.
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Muller A, Freitas J, Silva E, Le Gall-Reculé G, Zwingelstein F, Abrantes J, Esteves P, Alves P, van der Loo W, Kolodziejek J, Nowotny N, Thompson G. Evolution of rabbit haemorrhagic disease virus (RHDV) in the European rabbit (Oryctolagus cuniculus) from the Iberian Peninsula. Vet Microbiol 2009; 135:368-73. [DOI: 10.1016/j.vetmic.2008.09.057] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2008] [Revised: 08/20/2008] [Accepted: 09/15/2008] [Indexed: 12/01/2022]
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Sterry R, Silva E, Kolb D, Fricke P. Strategic treatment of anovular dairy cows with GnRH. Theriogenology 2009; 71:534-42. [DOI: 10.1016/j.theriogenology.2008.08.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2008] [Revised: 08/08/2008] [Accepted: 08/16/2008] [Indexed: 10/21/2022]
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Pereira AJ, Rehder P, Dias C, Figueiredo L, Silva E. Lactate generation is not related to tissue partial pressure of oxygen levels in sepsis. Crit Care 2009. [PMCID: PMC4085405 DOI: 10.1186/cc7807] [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: 11/10/2022] Open
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Silva E, Krisher RL. 256 LEPTIN AND GLUCOSE INFLUENCE PORCINE NUCLEAR MATURATION. Reprod Fertil Dev 2009. [DOI: 10.1071/rdv21n1ab256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Leptin (LEP), a product of the obese gene, regulates food intake and may be associated with the metabolic syndrome. In addition, leptin receptor has been identified in the luteal and granulosa cells of the pig, suggesting that this protein may play a role in fertility. Research indicates that LEP is associated with insulin sensitivity; thus, the addition of different concentrations of LEP and glucose (GLUC) in maturation media may have an impact on oocyte maturation. The objective of the current experiments was to determine the effect of LEP (Experiment 1), and LEP in combination with GLUC (Experiment 2) on the nuclear maturation of porcine oocytes. This could potentially be a good model system in which to study the effects of obesity and diabetes on oocyte quality. Cumulus–oocyte complexes were cultured in a chemically defined medium, Purdue porcine medium (PPM) for 42 h, in 7% CO2 in air and at 38.7°C. In Experiment 1, medium was supplemented with 5 different concentrations (0, 1, 10, 20, and 100 ng mL–1) of LEP, in the presence of 2 mm GLUC. Experiment 2 was designed as a 3 × 3 factorial, with LEP (0, 1, and 10 ng mL–1) and GLUC (0, 5, and 50 mm). Oocytes were fixed and stained after IVM (136 to 155/treatment, 7 replicates; and 39 to 90/treatment, 5 replicates for Experiment 1 and 2, respectively). Nuclear maturation was scored as 1 (mature; T or MII) or 0 (not mature). Data were analyzed by GLM ANOVA and chi-square. There was no difference in nuclear maturation between 0, 1, 10, 20, and 100 ng mL–1 LEP (79.4, 82.3, 74.5, 77.2, and 83.7% mature, respectively). According to these data, LEP alone did not have an effect on in vitro maturation of porcine oocytes when using a chemically defined maturation medium. Absence of GLUC in the medium had a negative effect on maturation (39.5%; P < 0.01) compared with treatment with 5 mm (88.2%) and 50 mm (74.7%) GLUC, independent of LEP. In the presence of 5 mm GLUC, there was no difference between 0, 1, and 10 ng mL–1 LEP (83.9, 94.9, and 88.3%, respectively). However, LEP did affect nuclear maturation when COC were cultured in the absence of GLUC or with excessive GLUC. Leptin (10 ng mL–1) tended (P = 0.1) to promote nuclear maturation (46.2%) in the absence of GLUC (0 mm), compared with 0 ng mL–1 LEP (32.3%). In high-GLUC (50 mm) medium, 1 ng mL–1 LEP had a positive effect (P < 0.05) on nuclear maturation (87.8%) compared with 0 ng mL–1 (66.7%) and 10 ng mL–1 LEP (72.3%). LEP (0 or 10 ng mL–1) inhibited (P < 0.05) nuclear maturation in the presence of high (50 mm) GLUC compared with that in 5 mm GLUC. These data demonstrate that addition of 10 ng mL–1 LEP in maturation media may mitigate the negative effect of maturation in the absence of GLUC. Moreover, in the presence of excessive GLUC, 1 ng mL–1 LEP stimulates nuclear maturation. These results suggest that LEP and GLUC may interact to regulate oocyte nuclear maturation in obese or diabetic individuals, or both.
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Correa T, de Almeida FP, Cavalcanti AB, Pereira AJ, Silva E. Evaluation of nursing perceptions about three insulin protocols for blood glucose control in critical care. Crit Care 2009. [PMCID: PMC4084008 DOI: 10.1186/cc7286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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