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Marzo M, Roncaglioni A, Kulkarni S, Barton-Maclaren TS, Benfenati E. In Silico Model for Developmental Toxicity: How to Use QSAR Models and Interpret Their Results. Methods Mol Biol 2016; 1425:139-61. [PMID: 27311466 DOI: 10.1007/978-1-4939-3609-0_8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2023]
Abstract
Modeling developmental toxicity has been a challenge for (Q)SAR model developers due to the complexity of the endpoint. Recently, some new in silico methods have been developed introducing the possibility to evaluate the integration of existing methods by taking advantage of various modeling perspectives. It is important that the model user is aware of the underlying basis of the different models in general, as well as the considerations and assumptions relative to the specific predictions that are obtained from these different models for the same chemical. The evaluation on the predictions needs to be done on a case-by-case basis, checking the analogs (possibly using structural, physicochemical, and toxicological information); for this purpose, the assessment of the applicability domain of the models provides further confidence in the model prediction. In this chapter, we present some examples illustrating an approach to combine human-based rules and statistical methods to support the prediction of developmental toxicity; we also discuss assumptions and uncertainties of the methodology.
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Pugliese D, Guidi L, Ferraro PM, Marzo M, Felice C, Celleno L, Landi R, Andrisani G, Pizzolante F, De Vitis I, Papa A, Rapaccini GL, Armuzzi A. Paradoxical psoriasis in a large cohort of patients with inflammatory bowel disease receiving treatment with anti-TNF alpha: 5-year follow-up study. Aliment Pharmacol Ther 2015; 42:880-8. [PMID: 26235565 DOI: 10.1111/apt.13352] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 04/01/2015] [Accepted: 07/17/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Psoriasis is an emerging paradoxical side effect in patients with inflammatory bowel disease (IBD) when treated with anti-TNF alpha. Patients with severe skin lesions unresponsive to topical therapy need to withdraw from treatment. AIM To estimate the incidence of paradoxical psoriasis in a large cohort of IBD patients treated with anti-TNF alpha and to analyse its clinical correlates. METHODS A retrospective cohort study on all IBD patients who started anti-TNF alpha at our IBD Centre from January 2008 to December 2013 was performed. Proportional hazards regression models were used to estimate the association between each predictor and time to the development of psoriasis. Time-dependent predictors were updated at each available time point. RESULTS Four hundred and two patients were included. Participants contributed a total of 839 person-years of follow-up, during which 42 incident cases of psoriasis were recorded, with an incidence rate of five per 100 person-years. Cox-regression survival analysis revealed smoking as independent predictor of psoriasis (HR: 2.37, 95% CI: 1.36-4.48; P = 0.008). Conversely, concomitant immunosuppressive therapy was inversely related to psoriasis (HR: 0.33, 95% CI: 0.12-0.92; P = 0.03). CONCLUSIONS Paradoxical psoriasis is a relevant side effect of anti-TNF alpha therapy, with an incidence rate of five per 100 person-years. Smoking is confirmed as the main risk factor for developing lesions. The combination therapy with anti-TNF alpha plus immunosuppressants is associated with a reduced risk of paradoxical psoriasis.
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Andrisani G, Marzo M, Celleno L, Guidi L, Papa A, Gasbarrini A, Armuzzi A. Development of psoriasis scalp with alopecia during treatment of Crohn's disease with infliximab and rapid response to both diseases to ustekinumab. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2013; 17:2831-2836. [PMID: 24174369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Anti tumor necrosis factor antibodies are used to treat both psoriasis and inflammatory bowel disease. Several paradoxical cases of psoriatic skin lesions induced by tumor necrosis factor antagonist therapy have been described in IBD patients in the recent years. Ustekinumab, a fully human anti-interleukin-12/-23 monoclonal antibody, is the first drug of a new class of biologic therapy approved for the treatment of moderate to severe plaque psoriasis. Data on the efficacy of ustekinumab in patients with moderate-to-severe Crohn's disease, especially in patients previously treated with infliximab, have been recently published. We report about the effectiveness of ustekinumab in the treatment of both severe scalp psoriasis lesions with alopecia and active Crohn's disease.
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Andrisani G, Gremese E, Guidi L, Papa A, Marzo M, Felice C, Pugliese D, Armuzzi A. Achievement of sustained deep remission with adalimumab in a patient with both refractory ulcerative colitis and seronegative erosive rheumatoid arthritis. Reumatismo 2013; 65:75-8. [DOI: 10.4081/reumatismo.2013.75] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 03/16/2013] [Accepted: 03/19/2013] [Indexed: 11/23/2022] Open
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Kourieh R, Bennici S, Marzo M, Gervasini A, Auroux A. Investigation of the WO3/ZrO2 surface acidic properties for the aqueous hydrolysis of cellobiose. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2011.12.030] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Guidi L, Marzo M, Felice C, Mocci G, Sparano L, Pugliese D, De Vitis I, Papa A, Armuzzi A. New biological agents for the treatment of the "high risk" IBD patients. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2010; 14:342-346. [PMID: 20496545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
BACKGROUND Several new biological drugs have been introduced in the last decade or are under investigation for the treatment of IBD. They include anti TNFalpha agents, anti adhesion molecules, anti IL-12/23, anti IL-6R and others. Their role in IBD therapy will be discussed in regard of the association of chronic inflammation and cancer in the gut. The risk of colorectal cancer is increased in ulcerative colitis (UC) and, to some extent, in Crohn's disease (CD). This association is well known from many years. However, the mechanisms linking chronic inflammation and carcinogenesis are beginning to be elucidated only recently. RESULTS AND CONCLUSIONS Experimental data indicate that several cytokines could play a role in promoting tumour development. In this perspective, the anti cytokine agents could be not only powerful tools in treating inflammation but also efficacious in preventing the onset of inflammation associated colorectal cancer.
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Guidi L, Ratto C, Semeraro S, Roberto I, De Vitis I, Papa A, Marzo M, Parello A, Foglietto G, Doglietto GB, Gasbarrini GB, Fedeli G. Combined therapy with infliximab and seton drainage for perianal fistulizing Crohn's disease with anal endosonographic monitoring: a single-centre experience. Tech Coloproctol 2008; 12:111-7. [PMID: 18545878 DOI: 10.1007/s10151-008-0411-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Accepted: 04/10/2008] [Indexed: 02/07/2023]
Abstract
During infliximab treatment of perianal Crohn's disease (CD), the healing of the skin opening precedes fistula tract healing and this contributes to abscess formation and fistula recurrence. The aims of this study were to evaluate the efficacy of combined treatment with infliximab and setons for complex perianal fistulas in CD and to define the optimal time for seton removal by anal endosonography (AE). Nine consecutive patients with CD were studied. Perianal sepsis was eradicated when necessary and setons were placed before infliximab therapy. Setons were removed after AE evidence of fistulous tracts healing. Patients received a mean of 10+/-2.3 infliximab infusions. At week 6 all patients showed a reduction in mean CD activity index (p<0.005) and perianal disease activity index (p<0.0001). Complete fistula response was achieved in eight of nine patients. In six patients after a mean of 9.2 infusions, infliximab treatment was discontinued. Clinical and AE response persisted at 19.4+/-8.8 months (range 3-28 months) in five of these patients. One patient had fistula recurrence 20 weeks after infliximab discontinuation and responded rapidly to retreatment. At the time of this report, two patients were still on infliximab and in remission after a mean follow-up of 25+/-5 months. Combined therapy with infliximab and setons with AE monitoring of the response showed high efficacy in the management of patients with CD with complex perianal fistulas.
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Ortiz H, Marzo M, de Miguel M, Ciga MA, Oteiza F, Armendariz P. Length of follow-up after fistulotomy and fistulectomy associated with endorectal advancement flap repair for fistula in ano. Br J Surg 2008; 95:484-7. [PMID: 18161890 DOI: 10.1002/bjs.6023] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND The length of follow-up required after surgical repair of cryptoglandular fistula in ano has not been established. This prospective study determined the follow-up time needed to establish that an anal fistula has been cured after elective fistulotomy or fistulectomy associated with endorectal advancement flap (ERAF) repair. METHODS Between January 2001 and June 2004, consecutive patients with anal fistula of cryptoglandular aetiology were included provided that they lived within the catchment area of the hospital and agreed to participate in a follow-up programme, which comprised scheduled visits every month until complete wound healing and annually thereafter. RESULTS Some 206 of 219 eligible patients were evaluable; fistulotomy was performed in 115 and ERAF repair in 91. Median follow-up was 42 (range 24-65) months. Eighteen patients had recurrence of the fistula during follow-up, with a median time to relapse of 5.0 (range 1.0-11.7) months. There were no recurrences after 1 year. CONCLUSION Recurrence of fistula in ano of cryptoglandular origin treated by means of fistulotomy or ERAF repair occurs within the first year of operation.
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Marzo M, Bonfill X, Alonso P, Balmaña J, Alonso C, Calaf J. Hormonal agents for the primary prevention of breast cancer. Hippokratia 2006. [DOI: 10.1002/14651858.cd003371.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Marzo M, Basora J, Rotaeche R, Mascort J. [The scientific trajectory of semFYC. Where do we want to get to?]. Aten Primaria 2005; 35:447-8. [PMID: 15919015 PMCID: PMC7668971 DOI: 10.1157/13075468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Carrick S, Parker S, Wilcken N, Ghersi D, Marzo M, Simes J. Single agent versus combination chemotherapy for metastatic breast cancer. Cochrane Database Syst Rev 2005:CD003372. [PMID: 15846660 DOI: 10.1002/14651858.cd003372.pub2] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND It is commonly thought that combining chemotherapy agents for treating women with metastatic breast cancer will result in regimens that are more active, offer superior tumour response rates with more time before progression and improve overall survival. However, it is not known whether giving patients more intensive chemotherapy regimens (judged according to some measure eg dose, dose intensity, response rate, or toxicity) results in better health outcomes. One way to investigate the effect of more versus less-intensive chemotherapy is to compare regimens containing a single drug (and hence possibly less active treatment) with regimens containing a greater number of drugs (and hence possibly more active but more toxic), even when adjustments are made to dosages or schedules to account for toxicity. OBJECTIVES To compare use of single chemotherapy agents with regimens containing a combination of agents for the treatment of metastatic breast cancer. SEARCH STRATEGY The Specialised Register maintained by the Editorial Base of the Cochrane Breast Cancer Group was searched on 2nd May 2003 using the codes for "advanced breast cancer", "chemotherapy". Details of the search strategy applied by the group to create the register, and the procedure used to code references, are described in the group's module on The Cochrane Library. SELECTION CRITERIA Randomised trials comparing single agent chemotherapy with combination therapy in women with metastatic breast cancer. DATA COLLECTION AND ANALYSIS Data were collected from published trials. Studies were assessed for eligibility and quality, and data were extracted by two independent reviewers. Hazard ratios were derived for time-to-event outcomes where possible, and a fixed effect model was used for meta-analysis. Response rates were analysed as dichotomous variables. Toxicity and quality of life data were extracted where present. MAIN RESULTS Thirty seven eligible trials were identified of which 28 had published time-to-event data. The quality of randomisation was generally not described. Data, based on an estimated 4220 deaths in 5707 women, show a modest advantage for combination chemotherapy regimens compared with single agents with a hazard ratio (HR) for overall survival of 0.88 (95% CI=0.83-0.94, P<0.0001) and no evident heterogeneity. Results are similar if the analysis is limited to trials in women receiving first-line chemotherapy. Combination regimens are favourably associated with time to progression (overall HR of 0.78 (95% CI=0.73-0.83, P<0.00001) and tumour response rates (OR 1.28, CI=1.15-1.42, P<0.00001) although significant heterogeneity was observed (P=0.002 and P<0.00001 respectively). This probably reflects the varying efficacy of the comparator regimens used in the trials. Women receiving combination regimens experienced a higher toxicity level for leukopenia, hair loss and nausea and vomiting compared with those receiving a single agent, which was statistically significant. AUTHORS' CONCLUSIONS Compared with single-chemotherapy agents, combination regimens show a statistically significant advantage for tumor response and time to progression in women with metastatic breast cancer, a modest improvement in overall survival and significantly worse toxicities.
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Castells A, Marzo M, Bellas B, Amador FJ, Lanas A, Mascort JJ, Ferrándiz J, Alonso P, Piñol V, Fernández M, Bonfill X, Piqué JM. [Clinical guidelines for the prevention of colorectal cancer]. GASTROENTEROLOGIA Y HEPATOLOGIA 2005; 27:573-634. [PMID: 15574281 DOI: 10.1016/s0210-5705(03)70535-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Castells A, Marzo M, Bellas B, Amador FJ, Lanas Á, Mascort JJ, Ferrándiz J, Alonso P, Piñol V, Fernández M, Bonfill X, Piqué JM. Guía clínica de prevención del cáncer colorrectal. GASTROENTEROLOGIA Y HEPATOLOGIA 2004. [DOI: 10.1157/13069131] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mascort JJ, Marzo M, Alonso-Coello P, Barenys M, Valdeperez J, Puigdengoles X, Carballo F, Fernández M, Ferrándiz J, Bonfill X, Piqué JM. Guía de práctica clínica sobre el manejo del paciente con dispepsia. GASTROENTEROLOGIA Y HEPATOLOGIA 2003; 26:571-613. [PMID: 14642245 DOI: 10.1016/s0210-5705(03)70414-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Alonso P, Marzo M, Mascort JJ, Hervás A, Viñas L, Ferrús J, Ferrándiz J, López-Rivas L, Bonfill X, Piqué JM. [Clinical practice guidelines for the management of patients with rectal bleeding]. GASTROENTEROLOGIA Y HEPATOLOGIA 2002; 25:605-32. [PMID: 12459124 DOI: 10.1016/s0210-5705(02)70325-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Marzo M, Alonso P, Bonfill X, Fernández M, Ferrandiz J, Martínez G, Mearín F, Mascort JJ, Piqué JM, Ponce J, Sáez M. [Clinical practice guideline on the management of patients with gastroesophageal reflux disease (GERD)]. GASTROENTEROLOGIA Y HEPATOLOGIA 2002; 25:85-110. [PMID: 11841764 DOI: 10.1016/s0210-5705(02)70245-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Marzo M, Bonfill X, Alonso P, Balmaña J, Alonso C, Calaf J. Hormonal agents for the primary prevention of breast cancer. Hippokratia 2001. [DOI: 10.1002/14651858.cd003371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bonfill X, Marzo M, Pladevall M, Martí J, Emparanza JI. Strategies for increasing women participation in community breast cancer screening. Cochrane Database Syst Rev 2001; 2001:CD002943. [PMID: 11279781 PMCID: PMC6457645 DOI: 10.1002/14651858.cd002943] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Strategies for reducing breast cancer mortality in western countries have focused on screening, at least for women aged 50 to 69 years. One of the requirements of any community screening program is to achieve a high participation rate, which is related to methods of invitation. Therefore, it was decided to systematically review the scientific evidence on the different strategies aimed at improving women's participation in breast cancer screening programs and activities. OBJECTIVES To assess the effectiveness of different strategies for increasing the participation rate of women invited to community (population-based) breast cancer screening activities or mammography programs. SEARCH STRATEGY MEDLINE (1966-2000), CENTRAL (2000), and EMBASE (1998-1999) searches for 1966 to 1999 were supplemented by reports and letters to the European Screening Breast Cancer Programs (Euref Network). SELECTION CRITERIA Both published and unpublished trials were eligible for inclusion, provided the women had been invited to a community breast screening activity or program and had been randomised to an intervention group or a control group with no active intervention. DATA COLLECTION AND ANALYSIS We identified 151 articles, which were reviewed independently by two people. The discrepancies were resolved by a third reviewer in order to reach consensus. Thirty-four studies were excluded because they lacked a control group; 58 of the other 117 articles were considered as opportunistic and not community-based; 59 articles, which reported 70 community-based randomised controlled trials or clinical controlled trials, were accepted. In 24 of these, the control group had not been exposed to any active intervention, but 8 of the 24 had to be excluded because the denominator for estimating attendance was unknown. At the end, 16 studies constituted the material for this review, although two studies were further excluded because their groups were not comparable at baseline. Data from all but one study were based on or converted to an intention-to-treat analysis. Attendance in response to the mammogram invitation was the main outcome measure. MAIN RESULTS The evidence favoured five active strategies for inviting women into community breast cancer screening services: letter of invitation (OR 1.66, 95% CI 1.43 to 1.92), mailed educational material (OR 2.81, 95% CI 1.96 to 4.02), letter of invitation plus phone call (OR 2.53, 95% CI 2.02 to 3.18), phone call (OR 1.94, 95% CI 1.70 to 2.23), and training activities plus direct reminders for the women (OR 2.46, 95% CI 1.72 to 3.50). Home visits did not prove to be effective (OR 1.06, 95 % CI 0.80 to 1.40) and letters of invitation to multiple examinations plus educational material favoured the control group (OR 0.62, 95 % CI 0.32 to 1.20). REVIEWER'S CONCLUSIONS Most active recruitment strategies for breast cancer screening programs examined in this review were more effective than no intervention. Combinations of effective interventions can have an important effect. Some costly strategies, as a home visit and a letter of invitation to multiple screening examinations plus educational material, were not effective. Further reviews comparing the effective interventions and studies that include cost-effectiveness, women's satisfaction and equity issues are needed.
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Vergés J, Marzo M, Santaeulària T, Serra-Kiel J, Burbank DW, Muñoz JA, Giménez-Montsant J. Quantified vertical motions and tectonic evolution of the SE Pyrenean foreland basin. ACTA ACUST UNITED AC 1998. [DOI: 10.1144/gsl.sp.1998.134.01.06] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Contreras A, Marzo M, Orts M, Mallea I, Morant A, Martińez E, Marco J. [Adenocarcinoma of the ceruminous glands: report of three cases]. ACTA OTORRINOLARINGOLOGICA ESPANOLA 1994; 45:49-51. [PMID: 8204295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We report three cases of ceruminoma seen in our department over a 1-year period and review the neoplasms of the ceruminous glands. According to the Welti classification, our three cases were ceruminous adenocarcinomas. Based on existing literature, ceruminous adenocarcinoma is the least frequent neoplasm of the ceruminous glands.
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de la Puente ML, Corio R, Alvarez J, Planas C, Isalt R, Marzo M. [An epidemic outbreak of measles in a rural area]. Aten Primaria 1993; 12:205-6, 208-10. [PMID: 8374019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
OBJECTIVE Analysis of an outbreak of measles among a partially vaccinated school population: the epidemiology, the effectiveness of the control measures and the efficacy of the vaccine (EV). DESIGN A descriptive study and cohorts study. SETTING Primary Care in the borough of Sant Andreu de la Barca. PATIENTS AND OTHERS PARTICIPANTS The school population of Sant Andreu de la Barca. MEASUREMENTS AND MAIN RESULTS The outbreak lasted three months and twenty days, with 95 cases overall. The most affected age group was form 4 to 10. 8.4% presented complications. Children were infected at school in 87% of the cases. The overall infection rate of the population between 0 and 15 was 2.4%. 36% of the cases had been correctly immunized and 43% were preventable cases. Vaccine coverage contacts was 67%. 84% of the susceptible contacts were vaccinated. Immunization status and immunization age of 323 out of 500 pupils was studied for the EX analysis. Global EV was 66% (42-80), 58% (13-80) for those immunized, between 12-14 month of age and 71% (43-85) for those immunized after the 15 month of age. CONCLUSIONS In order to eradicate the autoctonous measles an increase in immunization coverage, an improvement in the epidemiologic surveillance, and in the outbreak control measures are needed.
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Porta Serra M, Fernández Muñoz E, Guillamón M, MacFarlane DJ, Marzo M, Gelabert A, Porter CQ. [The optimization of the data base of a voluntary health care cooperative for the study of postoperative morbidity in benign prostatic hypertrophy]. Med Clin (Barc) 1993; 100:606-10. [PMID: 7684477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Investigation in health care services by data bases (DB) is undergoing an important increase in numerous countries. Several of the most relevant epidemiologic studies on the postsurgical morbidity and mortality of benign hypertrophy of the prostate (BHP) have used DB. The aim of this study was to prepare and optimize the DB of a health cooperative (Asistencia Sanitaria Colegial). METHODS Since 1981 the DB contains sociodemographic variables, data concerning visits to general practitioners and specialists, complementary examinations and hospitalizations. The coding system was specifically developed by the cooperative. The study base was made up of all the policies of the members between January 1981 and December 1988 (101,400 males). To identify the policies 14 codes potentially related with BHP were initially chosen and all the policies containing any of these codes were selected, with the manual analysis of 204 policies being thereby performed. RESULTS The total number of policies initially selected for the study was 3,157. Manual revision discarded the use of 9 of the 14 codes used in the first selection. In agreement with the 5 codes able to define diseases of prostatic gland and to the file in which they appeared the policies were classified as probable diseases of prostatic gland (n = 1,007, 31.9%), possible (n = 805, 25.5%) and improbable (n = 1,345, 42.5%). Likewise, the strategy to follow for the selection of a cohort of BHP cases was defined. CONCLUSIONS The manual analysis of policies evidenced a remarkable coherence and exhaustiveness of the information registered. The principal difficulties found with the data base used were the lack of a sole diagnosis and the coding system used in addition to the impossibility of automatically controlling the assistance received by the patients outside the cooperative system. The availability of a data base such as that herein described with a well defined large population and with accessible sociodemographic and health care information justifies collaborative efforts among health care administrators, clinicians, computer scientists and epidemiologists.
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Bonfill X, Marzo M, Medina C, Roura P. [Early diagnosis of breast cancer]. Med Clin (Barc) 1992; 99:797-8. [PMID: 1460960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Lorusso M, Gatti D, Marzo M, Boffoli D, Cocco T, Papa S. Chemical modification studies of beef-heart mitochondrial b-c1 complex. Effect of modification by ethoxyformic anhydride. EUROPEAN JOURNAL OF BIOCHEMISTRY 1987; 162:231-8. [PMID: 3028788 DOI: 10.1111/j.1432-1033.1987.tb10565.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The effect of the histidine-modifier ethoxyformic anhydride (EFA) on the enzymatic properties of the mitochondrial b-c1 complex (ubiquinol-cytochrome c reductase) has been investigated. Chemical modification by EFA inhibited to the same extent the reductase and the proton translocating activity of the complex. In particular EFA modification of the complex resulted in: strong inhibition of the antimycin-insensitive reduction of b cytochromes; inhibition of the antimycin-promoted oxidant-induced reduction of b cytochromes and inhibition of oxidation of pre-reduced b cytochromes. Analysis of the absorbance at 238 nm, indicative of N-(ethoxyformyl)histidine derivative, of the various polypeptide subunits separated by high-pressure liquid chromatography procedure, showed that EFA modified residues in core proteins and in the low-molecular-mass proteins. Both the inhibition of the redox and the protonmotive activity of the complex and the absorbance increase at 238 nm of the core protein fraction were readily reversed by hydroxylamine, indicating that modification of histidine residue(s) in core protein(s) is critical for the activity of the complex. This was supported by the finding that modification of the reductase with EFA prevented binding of fluorescein isothiocyanate to histidine residue(s) in core protein II. EFA modification of the reductase was without effect on the binding of N-(7-dimethylamino-4-methylcoumarinyl)maleimide to the various polypeptides of the complex except for the binding to the Fe-S protein which was greatly potentiated. Thus primary chemical modification of histidine residue(s) in core protein (II) appears to cause, in turn, a conformational change in the Rieske Fe-S protein.
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