559 research outputs found
Fumonisin B1 And Ochratoxin A In Beers Made In Brazil
Samples of beer made in Brazil were analyzed for the presence of fumonisin B1 (FB1) and ochratoxin A (OTA). FB1 was searched for in 58 beer samples from 30 plants located in nine states. The samples were concentrated and cleaned up with strong ion exchange column, derivatized with OPA and analyzed by HPLC with fluorescence detection. The limit of detection was 0.26 ng.mL-1 and the average recovery was 98%. Twenty-five samples contained FB1 ranging from 1 to 40 ng.mL -1. Beer (123 samples) from 36 plants located in 5 states were analyzed for OTA by means of immunoaffinity column cleanup followed by liquid chromatography associated with fluorescence. The detection limit was 0.1 ng.mL-1 and the average recovery was 92%. Five samples contained OTA in concentrations from 1 to 18 ng.mL-1. The results indicate that FB1 and OTA contamination in Brazilian beer is not geographically limited and that beer does not contribute significantly to FB1 intake by consumers. In the case of regular high ingestion, beer could contribute sizably to OTA, intake although still below the maximum considered tolerable for the toxin.272317323ALBERTS, J.F., Effects of temperature and incubation period on production of fumonisin B1 by Fusarium moniliforme (1990) Appl. Environ. Microbiol, 56 (6), pp. 1729-1733BAXTER, D., SLAIDING, I.R., KELLY, B., Behavior of ochratoxin A in brewing (2001) J. Am. Soc. Brewing Chem, 59 (3), pp. 98-100BENFORD, D. et al. Ochratoxin A. In: WHO FOOD ADDITIVES SERIES N. 47, Safety evaluation of certain mycotoxins in food. Geneva: World Health Organization, 2001. p. 281-415BENNETT, G.A., Distribution of fumonisins in food and feed products prepared from contaminated corn (1996) Fumonisins in food, pp. 317-322. , JACKSON, L. S, DE VRIES, J. W, BULLERMAN, L. B, eds, New York: PlenumBOLGER, M. et al. Fumonisins. In: WHO FOOD ADDITIVES SERIES N. 47, Safety evaluation of certain mycotoxins in food. Geneva: World Health Organization, 2001. p. 103-279BULLERMAN, L.B., Occurrence of Fusarium and fumonisins on food grains and in foods (1996) Fumonisins in food, pp. 27-38. , JACKSON, L. S, DE VRIES, J. W, BULLERMAN, L. B, eds, New York: PlenumBULLERMAN, L.B., TSAI, W.J., Incidence and levels of Fusarium moniliforme, Fusarium proliferatum and fumonisins in corn and corn-based foods and feeds (1994) J. Food Protection, 57 (6), pp. 541-546CAMARGOS, S.M., MACHINSKI, J.M., VALENTE SOARES, L.M., Avaliação de métodos para determinação de fumonisinas B1 e B2 em milho (1999) Rev. Inst. Adolfo Lutz, 58 (2), pp. 71-79CAWOOD, M.E., Isolation of the fumonisin mycotoxins - a quantitative approach (1991) J. Agric. Food Chem, 39 (11), pp. 1958-1962CHELKOWSKI, J., LEW, H., Fusarium species of Liseola section occurrence in cereals and ability to produce fumonisins (1992) Microbiol. Alim. Nutr, 10 (1-2), pp. 49-53COLVIN, B.M., HARRISON, L.R., Fumonisin-induced pulmonary edema and hydrothorax in swine (1992) Mycopathologia, 117 (1-2), pp. 79-82DASKO, L., Determination of ochratoxin A in beer (2005) Czech J. Food Sci, 23 (2), pp. 69-73DEGELMANN, P., Determination of ochratoxin A in beer by high-performance liquid chromatography (1999) Chromatographia, 49 (9-10), pp. 543-546DOKO, M.B., VISCONTI, A., Occurrence of fumonisins B1 and B2 in corn and corn-based human foodstuffs in Italy (1994) Food Add. Contam, 11 (4), pp. 433-439GELDERBLOM, W.C.A., Toxicity and carcinogenicity of Fusarium moniliforme metabolite, fumonisin B1, in rats (1991) Carcinogenesis, 12 (7), pp. 1247-1251HENNINGEN, M.R., Fumonisin levels in commercial corn products in Buenos Aires, Argentina (2000) Food Add. Contam, 17 (1), pp. 55-58HENNINGEN, M. R. et al. Fumonisin in corn hybrids grown in Argentina for two consecutive seasons. In: DE KOE, W. J.SAMSON, R. A.VAN EGMOND, H. P.GILBERT, J.SABINO, M. (eds.) Mycotoxins and phycotoxins in perspective at the turn of the millennium. Wageningen: Posen and Looten, 2000b. p. 331-339HLYWKA, J.J., BULLERMAN, L.B., Occurrence of fumonisin B1 and B2 in beer (1999) Food Add. Contam, 16 (8), pp. 319-324JACKSON, L.S., Effects of time, temperature and pH on the stability of fumonisins B1 in an aqueous model system (1996) J. Agric. Food Chem, 44 (4), pp. 906-912JACKSON, L.S., Effects of thermal processing on the stability of fumonisins B2 in an aqueous model system (1996) J. Agric. Food Chem, 44 (10), pp. 1984-1987JORGENSEN, K., Survey of pork, poultry, coffee, beer and pulses for ochratoxin A (1998) Food Add. Contam, 15 (4), pp. 550-554KELLERMAN, T.S., Leukoencephalomalacia in two horses induced by oral dosing of fumonisin B1 (1990) J. Vet. Res, 57 (4), pp. 269-275KUIPER-GOODMAN, T., Risk assessment of ochratoxin A: An update (1996) Food Add. Contam, 13 (SUPPL.EMENT), pp. 53-57KUIPER-GOODMAN, T., SCOTT, P.M., Risk assessment of the mycotoxin Ochratoxin A (1989) Biomed. Environ. Sci, 2 (1), pp. 179-248MACHINSKI, J.M., VALENTE SOARES, L.M., Fumonisins B1 and B2 in Brazilian corn-based food products (2000) Food Add. Contam, 17 (10), pp. 875-879MEDINA, A., Determination of ochratoxin A in beer marketed in Spain by liquid chromatography with fluorescence detection using lead hydroxyacetate as a cleanup agent (2005) J. Chromatogr. A, 1083 (1-2), pp. 7-13NAKAJIMA, M., TSOUBOUCHI, H., MIYASABE, M., A survey of ochratoxin A and aflatoxins in domestic and imported beers in Japan by immunoaffinity and liquid chromatography (1999) J. AOAC Int, 82 (6), pp. 897-902PATEL, S., Surveillance of fumonisins in UK maize based foods and other cereals (1997) Food Add. Contam, 40 (11), pp. 1352-1354PITT, J.I., Penicillium viridicatum, Penicillium verrucosum, and production of ochratoxin A (1987) Appl. Environ. Microbiol, 53 (2), pp. 266-269PLESTINA, R., Nephrotoxicity of cohratoxin A (1996) Food Add. Contam, 13 (SUPPL.EMENT), pp. 49-50POHLAND, A.E., NESHEIM, S., FRIEDMAN, L., Ochratoxin A: A review (1992) Pure Appl. Chem, 64 (9), pp. 1029-1046PRADO, G. et al. Ochratoxin A determination in beer by immunoaffinity column clean-up and high-performance liquid chromatography. Ciênc. Tecnol. Alim., v. 23, suplemento, p. 58-61, 2003(2002) Quantitative detection of ochratoxin A, , R-BIOPHARM RHÔNE LTD, Glasgow, Scotland, 5 pSCOTT, P.M., Natural toxins (1997) Official Methods of Analysis of the AOAC International, , CUNNIF, P, ed, Gaithersburg: AOAC InternationalSCOTT, P.M., KANHERE, S.R., Determination of ochratoxin A in beer (1995) Food Add. Contam, 12 (4), pp. 591-598SCOTT, P.M., LAWRENCE, G.A., Analysis of beer for fumonisins (1995) J. Food Protec, 58 (12), pp. 1379-1382SCOTT, P.M., Fermentation of wort containing added ochratoxin A and fumonisins B1 and B2 (1995) Food Add. Contam, 12 (1), pp. 31-40SCOTT, P.M., Evaluation of enzyme-linked immunosorbent assay for analysis of beer for fumonisins (1997) Food Add. Contam, 14 (5), pp. 445-450SHEPHARD, G.S., Quantitative determination of fumonisin B 1 and B2 by high performance liquid chromatography with fluorescence detection (1990) J. Liquid Chrom, 13 (10), pp. 2077-2087SHEPHARD, G.S., Worldwide survey of fumonisin contamination of corn and corn-based products (1996) J. AOAC Int, 79 (3), pp. 671-687(2006) SINDICATO NACIONAL DE INDÚSTRIAS DA CERVEJA. Dados de consumo, , http://www.sindicerv. com.br, São Paulo, Disponível em:, Acesso em: 15 maioSOLEAS, G.J., YAN, J., GOLDBERG, D.M., Assay of ochratoxin A in wine and beer by high-pressure liquid chromatography photodiode array and gas chromatography mass selective detection (2001) J. Agric. Food Chem, 49 (11), pp. 2733-2740SPEIJERS, J.A., VAN EGMOND, H.P., Worldwide ochratoxin A levels in food and feeds (1993) Human ochratoxicosis ant its pathologies, pp. 85-100. , CREPPY, E. E, CASTEGNARO, M, DIRHEIMER, G, eds, Paris: Libbey EurotextSTOEV, S.D., The role of ochratoxin A as a possible cause of Balkan endemic nephropathy and its risk evaluation (1998) Vet. Human Toxicol, 40 (4), pp. 352-360SYDENHAM, E.W., Fumonisin contamination of commercial corn-based human foodstuffs (1991) J. Agric. Food Chem, 39 (9), pp. 2014-2018TATU, C.A., The etiology of Balkan endemic nephropathy: Still more questions than answers (1998) Environ. Health Perspec, 106 (7), pp. 689-700TANGNI, E.K., Ochratoxin A in domestic and imported beers in Belgium: Occurrence and exposure assessment (2002) Food Add. Contam, 19 (12), pp. 1169-1179TEREM, J., Immunochemical detection of ochratoxin A in black Aspergillus strains (1996) Mycopathol, 134 (1), pp. 171-176THIEL, P.G., The implications of naturally occurring levels of fumonisins in corn for human and animal health (1992) Mycopathol, 117 (1), pp. 3-9THIEL, P.G., Levels of fumonisins B1 and B2 in feeds associated with confirmed cases of equine leukoencephalomalacia (1991) J. Agric. Food Chem, 39 (1), pp. 109-111TORRES, M.R., SANCHIS, V., RAMOS, A.J., Occurrence of fumonisins in Spanish beers analyzed by an enzyme-linked immunosorbent assay method (1998) Int. J. Food Microbiol, 39 (1-2), pp. 139-143VARGA, J., Detection of ochratoxin A in Hungarian wines and beers (2005) Acta Alimen, 34 (4), pp. 381-392VISCONTI, A., DOKO, M.B., Survey of fumonisin production by Fusarium isolated from cereals in Europe (1994) J. AOAC Int, 77 (6), pp. 546-55
Retention systems for extraoral maxillofacial prosthetic implants: a critical review
We describe the techniques available for retention of implant-supported prostheses: bar-clips, O-rings, and magnets. We present reported preferences and, although this is limited by the heterogeneity of methods used and patients studied, we hope we have identified the best retention systems for maxillofacial prosthetic implants. If practitioners know the advantages and disadvantages of each system, they can choose the most natural and comfortable prosthesis. We searched the PubMed and Scopus databases, and restricted our search to papers published 2001–13. MeSH terms used were Maxillofacial prosthesis and Craniofacial prosthesis OR Craniofacial prostheses. We found a total of 2630 papers, and after duplicates had been removed we analysed the rest and found 25 papers for review. Of these, 12 were excluded because they were case reports or non-systematic reviews. Of the remaining 13, 10 described group analyses and seemed appropriate to find practitioner’s choices, as cited in the abstract (n=1611 prostheses). Three papers did not mention the type of prosthetic connection used, so were excluded. The most popular choices for different conditions were analysed, though the sites and retention systems were not specified in all 10 papers. The bar-clip system was the most used in auricular (6/10 papers) and nasal prostheses (4/10). For the orbital region, 6/10 favoured magnets. Non-osseointegrated mechanical or adhesive retention techniques are the least expensive and have no contraindications. When osseointegrated implants are possible, each facial region has a favoured system. The choice of system is influenced by two factors: standard practice and the abilities of the maxillofacial surgeon and maxillofacial prosthetist
Early psychiatric morbidity in a Brazilian sample of acute ischemic stroke patients
OBJECTIVE: Stroke is a major public health problem worldwide, and its neuropsychiatric sequelae are frequent and disabling. Furthermore, there is evidence that these sequelae impair recovery. Brazil has the highest stroke rates in Latin America, but data on the frequency of neuropsychiatric disorders in these patients are scarce. This study aimed to identify mental disorders among in-hospital patients with acute ischemic stroke. METHODS: The Mini International Neuropsychiatric Interview-Plus (MINI-Plus) was applied to 60 patients during the first week of hospitalization. RESULTS: Psychiatric disorders were diagnosed in 55% of the patients. A wide range of neuropsychiatric disorders have been identified, mainly mood and anxiety disorders. Specifically, we identified major depression (26.7%), alcohol abuse or dependence (11.7%), specific phobia (8.3%), generalized anxiety disorder (6.7%), psychosis (5.0%), social phobia (3.3%), adjustment disorder (3.3%) and panic disorder (1.7%). CONCLUSION: Psychiatric comorbidity should be evaluated as part of the rehabilitation of stroke patients and should be carefully examined by physicians
A Bovine Pericardium Rigid Prosthesis For Left Ventricle Restoration: 12 Years Of Follow-up [prótese Rígida De Pericárdio Bovino Para Remodelamento Ventricular Esquerdo: 12 Anos De Seguimento]
Background: Myocardial infarction might result in dilated left ventricle and numerous techniques have been described to restore the original left ventricle shape and identify tools for late survival assessment. The aim of this study is to compare our experience with a modified Dor procedure using a rigid prosthesis to the septal anterior ventricular exclusion procedure (SAVE) for left ventricle restoration. The EuroScore index for prediction of late follow up survival was evaluated. Methods: We evaluated 80 patients who underwent left ventricle restoration between 1999 to 2007 and eight patients were excluded with incomplete data. A modified Dor procedure with rigid prosthesis (MD group) was performed on 53 patients and 19 underwent the septal anterior ventricular exclusion procedure (SAVE group). The patients were classified according their left ventricle shape as type I, II or III. Kaplan-Meier and Cox proportional hazard ratio regressions analysis were performed to assess survival after both techniques and expected surgical mortality using EuroScore index ranking after 12 years of follow up. Results: The operative mortality was comparable in both groups ranked by EuroScore index. The groups were comparable for all clinical data, except the MD group had more patients using intra-aortic balloon pumps before surgery, (5.7% vs. 0; P<0.01). Kaplan Meier analysis by left ventricle shape showed comparable survival for all patients, with slightly higher survival for type I. Kaplan Meier analysis of all death showed equivalent survival curves for both techniques after 12 years of follow up (71.5 ± 12.3 vs. 46.6 ±20.5 years; P=0.08). Kaplan Meier analysis of EuroScore index for all patients showed a difference between the three ranked categories, i.e., 0 to 10%, 11 to 49% and higher than 50% expected surgical mortality after 12 years of follow up (70.9 ± 16.2 vs. 67.5 ± 12.7 vs. 53.0 ± 15.5; P=0.003). Conclusion: The MD procedure showed consistent ejection fraction improvements after long term follow up. Survival was comparable for all ventricular types and for the MD and SAVE procedures. The EuroScore index is a useful index for late survival assessment of ventricular restoration techniques.262164172Cooley, D.A., Hallman, G.L., Henly, W.S., Left ventricular aneurysm due to myocardial infarctionexperience with 37 patients undergoing aneurysmectomy (1964) Arch Surg, 88, pp. 114-121Jatene, A.D., Left ventricular aneurysmectomy. Resection or reconstruction (1985) J Thorac Cardiovasc Surg, 89 (3), pp. 321-331Dor, V., Saab, M., Coste, P., Kornaszewska, M., Montiglio, F., Left ventricular aneurysm: A new surgical approach (1989) Thorac Cardiovasc Surg, 37 (1), pp. 11-19Dor, V., Sabatier, M., di Donato, M., Montiglio, F., Toso, A., Maioli, M., Efficacy of endoventricular patch plasty in large postinfarction akinetic scar and severe left ventricular dysfunction: Comparison with a series of large dyskinetic scars (1998) J Thorac Cardiovasc Surg, 116 (1), pp. 50-59Braile, D.M., Mustafa, R.M., Ardito, R.V., Zaiantchick, M., Coelho, W.M., (1991) Correction of the Left Ventricle Geometry with Semi Rigid Bovine Pericardial Prosthesis Rev Bras Cir Cardiovasc, 6 (2), pp. 109-115Isomura, T., Horii, T., Suma, H., Buckberg, G.D., Septal anterior ventricular exclusion operation (Pacopexy) for ischemic dilated cardiomyopathy: Treat form not disease (2006) Eur J Cardiothorac Surg, 29 (SUPPL. 1), pp. S245-S250. , RESTORE GroupJones, R.H., Velazquez, E.J., Michler, R.E., Sopko, G., Oh, J.K., O'Connor, C.M., Coronary bypass surgery with or without surgical ventricular reconstruction (2009) N Engl J Med, 360 (17), pp. 1705-1717di Donato, M., Castelvecchio, S., Kukulski, T., Bussadori, C., Giacomazzi, F., Frigiola, A., Surgical ventricular restoration: Left ventricular shape influence on cardiac function, clinical status, and survival (2009) Ann Thorac Surg, 87 (2), pp. 455-461Najafi, M., Sheikhvatan, M., Montazeri, A., Sheikhfathollahi, M., Predictors of quality of life among patients undergoing coronary artery bypass surgery (2008) Acta Cardiol, 63 (6), pp. 713-721Messaoudi, N., de Cocker, J., Stockman, B.A., Bossaert, L.L., Rodrigus, I.E., Is EuroSCORE useful in the prediction of extended intensive care unit stay after cardiac surgery? (2009) Eur J Cardiothorac Surg, 36 (1), pp. 35-39Santarpino, G., Onorati, F., Rubino, A.S., Abdalla, K., Caroleo, S., Santangelo, E., Preoperative intraaortic balloon pumping improves outcomes for high-risk patients in routine coronary artery bypass graft surgery (2009) Ann Thorac Surg, 87 (2), pp. 481-488Nashef, S.A., Roques, F., Michel, P., Gauducheau, E., Lemeshow, S., Salamon, R., European system for cardiac operative risk evaluation (EuroSCORE) (1999) Eur J Cardiothorac Surg, 16 (1), pp. 9-13Dor, V., Sabatier, M., di Donato, M., Maioli, M., Toso, A., Montiglio, F., Late hemodynamic results after left ventricular patch repair associated with coronary grafting in patients with postinfarction akinetic or dyskinetic aneurysm of the left ventricle (1995) J Thorac Cardiovasc Surg, 110 (5), pp. 1291-1299Athanasuleas, C.L., Buckberg, G.D., Stanley, A.W., Siler, W., Dor, V., Didonato, M., RESTORE Group. Surgical ventricular restoration: The RESTORE Group experience (2004) Heart Fail Rev, 9 (4), pp. 287-297Salati, M., di Biasi, P., Paje, A., Santoli, C., Left ventricular geometry after endoventriculoplasty (1993) Eur J Cardiothorac Surg, 7 (11), pp. 574-578Buckberg, G.D., Coghlan, H.C., Torrent-Guasp, F., The structure and function of the helical heart and its buttress wrapping. VI. Geometric Concepts of Heart Failure and Use For Structural Correction (2001) Semin Thorac Cardiovasc Surg, 13 (4), pp. 386-401di Donato, M., Sabatier, M., Dor, V., Gensini, G.F., Toso, A., Maioli, M., Effects of the Dor procedure on left ventricular dimension and shape and geometric correlates of mitral regurgitation one year after surgery (2001) J Thorac Cardiovasc Surg, 121 (1), pp. 91-96Suma, H., Horii, T., Isomura, T., Buckberg, G., A new concept of ventricular restoration for nonischemic dilated cardiomyopathy (2006) Eur J Cardiothorac Surg, 29 (SUPPL. 1), pp. S207-S212. , RESTORE GroupForm versus disease: Optimizing geometry during ventricular restoration (2006) Eur J Cardiothorac Surg, 29 (SUPPL. 1), pp. S238-S244. , RESTORE GroupKieser, T.M., The left ventricle: To reconstruct or not: Lessons from the STICH trial (2009) J Thorac Cardiovasc Surg, 138 (3), p. 784Suma, H., Isomura, T., Horii, T., Buckberg, G., Role of site selection for left ventriculoplasty to treat idiopathic dilated cardiomyopathy (2004) Heart Fail Rev, 9 (4), pp. 329-336. , RESTORE GroupDancini, J.L., Rodrigues, J.J., Santos, J.S., Pinto, R.F.A., Burgos, F.J.C., Conforti, C.A., Left ventricular aneurysmectomy: Late followup (1996) Rev Bras Cir Cardiovasc, 1 (11), pp. 23-29Almeida, R.M.S., Lima, J.D., Bastos, L.C., Carvalho, C.T., Loures, D.R., Endoventricular circular patch plasty with septal exclusion: Initial experience (2000) Rev Bras Cir Cardiovasc, 4 (15), pp. 302-307Campagnucci, V.P., Rivetti, L.A., Pinto e Silva, A.M.R., Gandra, S.M.A., Pereira, W.L., Aneurismectomia de ventrículo esquerdo com o coração batendo ininterruptamente: Resultados imediatos (2006) Rev Bras Cir Cardiovasc, 21 (1), pp. 55-61Herrera, C.B., Insalralde, A., Brandi, A.C., Santos, C.A., Herrera, D.D., Soares, M.J.F., Correção de aneurisma de ventrículo esquerdo em paciente chagásico empregando prótese de pericárdio bovino (2000) Rev Bras Cir Cardiovasc, 15 (1), pp. 72-74Sgarbi, C.J., Ardito, R.V., Santos, R.C., Bogdan, R.A.B., Arruda Jr., F.V., Silva, E.M., Correção cirúrgica do aneurisma de ventrículo esquerdo: Comparação entre as técnicas de sutura linear e reconstrução geométrica (2000) Rev Bras Cir Cardiovasc, 15 (4), pp. 293-301Versteegh, M.I., Lamb, H.J., Bax, J.J., Curiel, F.B., van der Wall, E.E., de Roos, A., MRI evaluation of left ventricular function in anterior LV aneurysms before and after surgical resection (2003) Eur J Cardiothorac Surg, 23 (4), pp. 609-613Use of cardiac magnetic resonance imaging in surgical ventricular restoration (2006) Eur J Cardiothorac Surg, 29 (SUPPL. 1), pp. S216-S224. , Buckberg GD;RESTORE GroupWalker, J.C., Guccione, J.M., Jiang, Y., Zhang, P., Wallace, A.W., Hsu, E.W., Helical myofiber orientation after myocardial infarction and left ventricular surgical restoration in sheep (2005) J Thorac Cardiovasc Surg, 129 (2), pp. 382-39
AVALIAÇÃO E EFETIVIDADE DA ANALGESIA EM PESSOAS SUBMETIDAS A HEMODIÁLISE
Objetivo: Avaliar a prevalência de dor crónica e dor intradialítica em pessoas em programa hemodiálise, bem como a eficácia da terapia analgésica. Métodos: Estudo transversal e correlacional. Uma amostra aleatória composta por 183 pessoas submetidos a hemodiálise em duas clínicas e um serviço de nefrologia na região de Lisboa, Portugal. Aplicados Brief Pain Inventory, que analisa a influência da dor na vida da pessoa e Escala Visual Analógica para avaliar a dor intradialítica. Resultados: A amostra foi constituída em sua maioria por homens (59,6%) de nacionalidade portuguesa (78,7%), média de idade de 59,17 anos (± 14,64). A dor crónica ocorre em 56,6% das pessoas e a dor intradialítica em 30,1%. As causas da dor crónica foram musculoesqueléticas (68,7%) e dor associada ao acesso vascular (17,2%). A localização nos membros inferiores foi a mais comum (43,4%). O uso de analgésicos para dor crónica foi elevado (58,2%) e foram ainda utilizados o repouso (24,1%) e massagem/relaxamento (6,3%). O alívio da dor crónica verificou-se em 63% das pessoas, referindo alívio de mais de 50%. Conclusões: A dor de origem musculoesquelética é um sintoma frequente nesta amostra. A utilização de fármacos na gestão da dor crónica foi a estratégia mais aplicada
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