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Resumo Objetivo Avaliar a taxa de aceitação do dispositivo intrauterino pós-placentário (DIUPP); os motivos de recusa e propor medidas que aumentem sua aceitação. Métodos Estudo de corte transversal realizado no Hospital daMulher da Universidade Estadual de Campinas, Campinas, SP, Brasil. O DIUPP foi oferecido amulheres admitidas em trabalho de parto que não apresentavam: infecções,malformação uterina, gravidez gemelar, parto prematuro e com idade mínima de 18 anos. Em caso de recusa, perguntou-se o motivo, e as respostas foram agrupadas em informações equivocadas sobre contracepção ou outros motivos. Considerou-se informação equivocada: medo de dor, sangramentos, falha da contracepção e prejuízo da fertilidade. Análises bivariadas foram realizadas. Resultados Entre 241 mulheres, a taxa de recusa foi de 41,9%. A desinformação correspondeu a 50,5% de todos osmotivos de recusa, que foram:medo da dor (39,9%); medo da falha da contracepção (4,9%); medo de sangramento (3,9%), medo de o dispositivo intrauterino (DIU) prejudicar a fertilidade (1,9%). Outros motivos de recusa atingem 49,5%. Parturientes com idade entre 18 e 27 anos recusaram o PPIUD com mais frequência devido a desinformação (67,4%), e as mais velhas (com idade entre 28 e 43 anos) recusaram com frequência devido a outros motivos (63,6%) (p=0,002). Houve diferença entre a idade média de quem recusou o PPIUD por desinformação (27,3 ± 6,4 anos) em comparação com outras razões (29,9 ± 5,9 anos), (p=0,017). Além disso, ambos os grupos apresentaram altas taxas de recusa por desinformação, de 67,4 e 36,4%, respectivamente. Conclusão A recusa do DIUPP foi alta, principalmente entre as mulheres jovens e por desinformação. Diante disso, é necessário o desenvolvimento de medidas educativas durante o pré-natal e aconselhar as mulheres sobre contracepção, saúde reprodutiva e gravidez indesejada.

Abstract Objective To evaluate the acceptability of postplacental placement of intrauterine devices (PPIUD), reasons for refusal and suggested policies to increase its use. Methods Cross-sectional study conducted at the Women Hospital of the Universidade de Campinas, Campinas, SP, Brazil. Postplacental placement of intrauterine devices was offered to women admitted in labor who did not present infections, uterinemalformation, twin pregnancy, preterm birth, and were at least 18 years old. In case of refusal, the parturient was asked to give their reasons and the answers were classified as misinformation about contraception or other reasons. The following were considered misinformation: fear of pain, bleeding, contraception failure and future infertility. Bivariate analysis was performed. Results Amongst 241 invited women, the refusal rate was of 41.9%. Misinformation corresponded to 50.5% of all refusals, and the reasons were: fear of pain (39.9%); fear of contraception failure (4.9%); fear of bleeding (3.9%); fear of future infertility (1.9%); other reasons for refusal were 49.5%. Parturients aged between 18 and 27 years old refused the PPIUD more frequently due to misinformation (67.4%), and older parturients (between 28 and 43 years old) refused frequently due to other reasons (63.6%) (p=0.002). Themean age of those who declined the PPIUD due to misinformation was 27.3 ± 6.4 years old, while those who declined for other reasons had a mean age of 29.9 ± 5.9 years old (p=0.017). Conclusion The refusal of the PPIUD was high, especially amongst young women and due to misinformation. It is necessary to develop educative measures during antenatal care to counsel women about contraception, reproductive health and consequences of unintended pregnancy.

https://doi.org/10.1055/s-0041-1725053 179 downloads

Diagnostic Value of the Neutrophil/Lymphocyte Ratio, Platelet/Lymphocyte Ratio, and Thrombocytosis in the Preoperative Investigation of Ovarian Masses
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Yoshida, Adriana

; Sarian, Luís Otavio

; Marangoni Junior, Marcos

; Firmano, Isis Caroline

; Derchain, Sophie Françoise

Revista Brasileira de Ginecologia e Obstetrícia

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jul 2020, Volume 42 N. 7 Pages 397 - 403

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Objetivo Avaliar a acurácia diagnóstica do antígeno de câncer 125 (cancer antigen 125, CA125, em inglês) e dos parâmetros do hemograma como as razões neutrófilo/linfócito (RNL), plaqueta/linfócito (RPL), e trombocitose em pacientes com massas ovarianas. Métodos Este é um estudo retrospectivo realizado em um hospital terciário no período de janeiro de 2010 a novembro de 2016. Foram incluídas de forma consecutiva mulheres encaminhadas por massas anexiais suspeitas. Foram dosados hemogramas e CA125 no soro de 528 mulheres com massas ovarianas antes da cirurgia ou biópsia. Foram avaliados os desempenhos diagnósticos da RNL, da RPL, das plaquetas (PLQs) e do CA125, considerando-os isoladamente e associados entre si. Testamos a utilidade clínica dos parâmetros do hemograma e do CA125 na discriminação das massas ovarianas por análise de curva de decisão (ACD). Resultados Os melhores equilíbrios entre sensibilidade e especificidade foram obtidos por meio das associações do CA125 ou PLQs ≥ 350/nL, com 70,14% e 71,66%, CA125 ou PLQs ≥ 400/nL, com 67,30% e 81,79%, CA125 ou RPL, com76,3% e 64,87%, e CA125 ou RNL, com 71,09% e 73,89%, respectivamente. Conclusão Na ACD, nenhum parâmetro do hemograma isolado se mostrou superior ao CA125 na predição de malignidade de tumores ovarianos no pré-operatório.

Abstract Objective To evaluate the diagnostic accuracy of cancer antigen 125 (CA125) and complete blood count (CBC) parameters, such as the neutrophil to lymphocyte ratio (NLR), the platelet to lymphocyte ratio (PLR), and thrombocytosis in patients with ovarian masses. Methods The present is a retrospective study conducted at a single tertiary hospital from January 2010 to November 2016. We included consecutive women referred due to suspicious adnexal masses. The CBC and CA125 were measured in the serum of 528 women with ovarian masses before surgery or biopsy. We evaluated the diagnostic performance of the NLR, PLR, platelets (PLTs), CA125, and the associations between them. We tested the clinical utility of the CBC parameters and CA125 in the discrimination of ovarian masses through decision curve analysis (DCA). Results The best balance between sensitivity and specificity was obtained by the associations of CA125 or PLTs ≥ 350/nL, with 70.14% and 71.66%, CA125 or PLTs ≥ 400/ nL, with 67.30% and 81.79%, CA125 or PLR, with 76.3% and 64.87%, and CA125 or NLR, with 71.09% and 73.89% respectively. In the DCA, no isolated CBC parameter presented a higher clinical utility than CA125 alone. Conclusion We showed that no CBC parameter was superior to CA125 in the prediction of the malignancy of ovarian tumors in the preoperative scenario.

https://doi.org/10.1055/s-0040-1712991 465 downloads

Quality of life and vaginal symptoms of postmenopausal women using pessary for pelvic organ prolapse: a prospective study
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Coelho, Suelene C. Albuquerque

; Marangoni-Junior, Marcos

; Brito, Luiz Gustavo Oliveira

; Castro, Edilson Benedito de

; Juliato, Cássia Raquel Teatin

Revista da Associação Médica Brasileira

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dec 2018, Volume 64 N. 12 Pages 1103 - 1107

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO OBJETIVO: O pessário é uma opção para o tratamento conservador do prolapso genital. MÉTODOS: Um estudo prospectivo e observacional foi realizado com 19 mulheres com prolapso genital avançado. A avaliação da qualidade de vida e dos sintomas vaginais foi mensurada pelos questionários SF-36 e ICIQ-VS antes e seis meses depois da colocação do pessário. Uma pergunta simples sobre satisfação do uso do dispositivo foi também feita (impressão subjetiva). RESULTADOS: A idade média das mulheres foi de 76 anos. A maioria era parda/negra (52,6%), sem cirurgias pélvicas (57,5%), com sintomas urinários (78,9%). Um terço das pacientes relatou atividade sexual. Depois do tratamento, 22,2% apresentaram infecção vaginal e 27,7% fluxo vaginal aumentado. Não houve alteração da prevalência dos sintomas urinários. As mulheres relataram 100% de satisfação (77,7% melhora parcial e 22,3% melhora completa) depois do uso do pessário. Houve melhora em três domínios do SF-36: saúde em geral (p=0,090), vitalidade (p=0,0497) e aspectos sociais (p=0,007). O ICIQ-VS apresentou redução nos sintomas vaginais (p<0,0001) e melhora da qualidade de vida (p<0,0001). CONCLUSÕES: O uso do pessário por seis meses em mulheres com prolapso genital melhorou a qualidade de vida e reduziu os sintomas vaginais.

SUMMARY OBJECTIVE: The use of pessary is an option for the conservative treatment of pelvic organ prolapse (POP). However, here are few studies assess the quality of life (QoL) after inserting the pessary for POP. We have hypothesized that the use of pessary would modify QoL in women with POP. METHODS: A prospective, observational study was performed that included 19 women with advanced POP. Pessary was introduced, and the SF-36 (general quality of life) and ICIQ-VS (vaginal symptoms and quality of life subdomain) questionnaires were applied before the introduction and after six months. A single question about the satisfaction regarding the use of the device was presented (subjective impression). RESULTS: The mean age of the women included was 76 years. Most of them were non-caucasian (52.6%), with no prior pelvic surgery (57.5%), with urinary symptoms (78.9%). A third of the patients reported sexual activity. After treatment, 22.2% of them presented vaginal infection, and 27.7% increased vaginal discharge. Urinary symptoms remained unaltered. Women reported 100% satisfaction after using the pessary (77.7% partial improvement; 22.3% total improvement). SF-36 had significant improvement in three specific domains: general state of health (p=0.090), vitality (p=0.0497) and social aspects (p=0.007). ICIQ-VS presented a reduction in the vaginal symptoms (p < 0.0001) and an improvement in QoL (P < 0.0001). CONCLUSION: The use of pessary for six months improved the QoL and reduced vaginal symptoms for women with advanced POP.

https://doi.org/10.1590/1806-9282.64.12.1103 1760 downloads

Hidróxidos duplos lamelares como matrizes para fertilizantes de liberação lenta de nitrato
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Silva, Valentim da

; Kamogawa, Marcos Y.

; Marangoni, Rafael

; Mangrich, Antonio Salvio

; Wypych, Fernando

Revista Brasileira de Ciência do Solo

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feb 2014, Volume 38 N. 1 Pages 272 - 277

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Diante do extensivo uso de fertilizantes nitrogenados na agricultura e elevado potencial de lixiviação do nitrato, há uma demanda por fertilizantes de liberação lenta ou controlada. Os hidróxidos duplos lamelares (HDLs) sintéticos reúnem características que os qualifica para o uso como matrizes para fertilizantes de liberação lenta de íons nitrato. Os objetivos deste trabalho foram focados na síntese, caracterização e investigação do processo de liberação lenta de nitrato em um HDL contendo íons Mg2+ e Al3+ em sua estrutura. O HDL com a fórmula Mg0,83Al0,17(OH)2(NO3)0,17.0,56H2O foi sintetizado pelo método de coprecipitação em pH alcalino constante, separado por centrifugação e seco em estufa a vácuo. As análises de difração de raios-X, de espectroscopia vibracional na região do infravermelho com transformada Fourier e as análises térmicas comprovam a obtenção do composto contendo o íon nitrato hidratado intercalado, além da fórmula proposta. O composto foi submetido a testes de liberação de nitrato em solução de NaHCO3 tamponado a pH 6,5 e em água destilada. As curvas obtidas evidenciaram dois eventos complementares de liberação de nitrato, um evento inicial rápido e um outro lento e gradativo. O composto investigado neste trabalho demonstrou potencial para ser utilizado como matriz para fertilizante de liberação lenta de nitrato.

Due to the extensive use of nitrogen fertilizers in the agriculture e due to the elevate potential of nitrate leaching, there is a great demand for slow or controlled release fertilizers. Synthetic layered double hydroxides (HDLs) combine the characteristic that qualifies them to be used as matrixes for nitrate slow release fertilizers. The objectives of the present work are focused in the synthesis, characterization and investigation of the slow release of nitrate process in one structure of a HDL containing ions Mg2+ and Al3+ in its structure. The HDL with the formula Mg0,83Al0,17(OH)2(NO3)0,17.0,56H2O was synthesized by the co-precipitation method at constant alkaline pH, isolated by centrifugation and dried in an vacuum oven. Measurements of X-ray diffraction (XRD), Fourier Transform Infrared spectroscopy (FTIR) and thermal analysis (TGA/DTA) confirmed the obtaining of the compound containing the intercalated hydrated nitrate anions and the proposed formula. The compound was tested for release nitrate NaHCO3 solution buffered to pH 6.5, and distilled water. The representative curves demonstrated two complementary behaviors nitrate release a fast initial and a slow gradual. The compound investigated in this study demonstrates the potential to be used as a matrix for slow release fertilizer nitrate. The compound was submitted to the nitrate release tests using a NaHCO3 solution buffered at pH 6.5 and in distilled water. The obtained curves have shown two complementary events of nitrate release, one fast initial event and another slow and gradual. The compound investigated in the present work has shown a potential to be used as matrix for nitrate slow release fertilizers.

2608 downloads Cited 1 time in SciELO

Identification of two novel cytolysins from the hydrozoan Olindias sambaquiensis (Cnidaria)
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Haddad Junior, Vidal

; Zara, Fernando

; Marangoni, Sergio

; Toyama, Daniela de Oliveira

; Souza, Alex Jardelino Felizardo de

; Oliveira, Simone Cristina Buzzo de

; Toyama, Marcos Hikari

Journal of Venomous Animals and Toxins including Tropical Diseases

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2014, Volume 20 elocation 10

Abstract: En | Text: En | PDF: En

Background: Although the hydrozoan Olindias sambaquiensis is the most common jellyfish associated with human envenomation in southeastern and southern Brazil, information about the composition of its venom is rare. Thus, the present study aimed to analyze pharmacological aspects ofO. sambaquiensis venom as well as clinical manifestations observed in affected patients. Crude protein extracts were prepared from the tentacles of animals; peptides and proteins were sequenced and submitted to circular dichroism spectroscopy. Creatine kinase, cytotoxicity and hemolytic activity were evaluated by specific methods.Results: We identified two novel cytolysins denominated oshem 1 and oshem 2 from the tentacles of this jellyfish. The cytolysins presented the amino acid sequences NEGKAKCGNTAGSKLTFKSADECTKTGQK (oshem 1) and NNSKAKCGDLAGWSKLTFKSADECTKTGQKS (oshem 2) with respective molecular masses of 3.013 kDa and 3.375 kDa. Circular dichroism revealed that oshem 1 has random coils and small α-helix conformation as main secondary structure whereas oshem 2 presents mainly random coils as its main secondary structure probably due to the presence of W (13) in oshem 2. The hemolysis levels induced by oshem 1 and oshem 2 using a peptide concentration of 0.2 mg/mL were, respectively, 51.7 ± 6.5% and 32.9 ± 8.7% (n = 12 and p ≤ 0.05). Oshem 1 and oshem 2 showed significant myonecrotic activity, evaluated by respective CK level measurements of 1890.4 ± 89 and 1212.5 ± 103 (n = 4 and p ≤ 0.05). In addition, myonecrosis was also evaluated by cell survival, which was measured at 72.4 ± 8.6% and 83.5 ± 6.7% (n = 12 and p ≤ 0.05), respectively. The structural analysis showed that both oshem 1 and oshem 2 should be classified as a small basic hemolytic peptide.Conclusion: The amino acid sequences of two peptides were highly similar while the primary amino acid sequence analysis revealed W (22th) as the most important mutation. Finally oshem 1 and oshem 2 are the first cytolytic peptides isolated from the Olindias sambaquiensis and should probably represent a novel class of cytolytic peptides.

https://doi.org/10.1186/1678-9199-20-10 1118 downloads

Occurrence of sulphate reducing bacteria (SRB) associated with biocorrosion on metallic surfaces in a hydroelectric power station in Ibirama (SC) - Brazil
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Marangoni, Paulo Roberto Dantas

; Robl, Diogo

; Berton, Marcos Antonio Coelho

; Garcia, Carlos Mario

; Bozza, Angela

; Porsani, Mariana Vieira

; Dalzoto, Patricia do Rocio

; Vicente, Vânia Aparecida

; Pimentel, Ida Chapaval

Brazilian Archives of Biology and Technology

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oct 2013, Volume 56 N. 5 Pages 801 - 809

Abstract: En | Text: En | PDF: En

The aim of this study was evaluate, two methods for the detection and identification of sulphate reducing bacteria (SRB): ML medium and PCR with specific primers for SRB groups. SRB were detected through the selective medium only on carbon steel, which showed corrosion. Employing specific PCR primer, SBR were detected from all the metallic components assayed, even those that did not present visible corrosion spots, such stainless steel and copper alloys. Despite the presence or absence of corrosion at the later stages effectively by using the selective medium,, the initial stages of the corrosion could only be detected by the amplification of total DNA with SRB specific primers. The early detection of SRB could be employed for preventing the damages on metal surfaces before the installation of corrosion processes. Strategies for reducing the time spent on SRB isolation and identification could be auxiliary tools for controlling the corrosion of materials.

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Categorización del estado de conservación de los anfibios de la República Argentina
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Vaira, Marcos

; Akmentins, Mauricio

; Attademo, Maximiliano

; Baldo, Diego

; Barrasso, Diego

; Barrionuevo, Sebastián

; Basso, Néstor

; Blotto, Boris

; Cairo, Samanta

; Cajade, Rodrigo

; Céspedez, Jorge

; Corbalán, Valeria

; Chilote, Paula

; Duré, Marta

; Falcione, Camila

; Ferraro, Daiana

; Gutierrez, F. Romina

; Ingaramo, Maria del Rosario

; Junges, Celina

; Lajmanovich, Rafael

; Lescano, Julián N.

; Marangoni, Federico

; Martinazzo, Liza

; Marti, Romina

; Moreno, Liliana

; Natale, Guillermo Sebastián

; Pérez Iglesias, Juan Manuel

; Peltzer, Paola

; Quiroga, Lorena

; Rosset, Sergio

; Sanabria, Eduardo

; Sanchez, Laura

; Schaefer, Eduardo

; Úbeda, Carmen

; Zaracho, Víctor

Cuadernos de herpetología

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dec 2012, Volume 26 Suppl. 1 Pages 131 - 159

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

More than a decade after the first red list of herpetofauna proposed by the Asociación Herpetológica Argentina (Lavilla et al., 2000), we recategorized amphibians based on new taxonomic, biogeographical, bio-ecological information and methodological changes in the former evaluation. Through the participation of 35 specialists from all over Argentina 175 taxa of amphibians (171 in the previous categorization) are reevaluated including 23 new taxa added to Argentina, obtaining as results the inclusion of 51 Red List species (8 Endangered, 11 Threatened, 32 Vulnerable), 21 Insufficiently Known and 103 Not Threatened. In relation to the former categorization of the AHA the changes were: one taxon descended from Critically Endangered to Endangered, seven taxa descended from Endangered or Vulnerable to Insufficiently Known, and nine from Insufficiently Known to Not Threatened. Three Not Threatened and 10 Insufficiently Known were elevated to different categories of threat, nine taxa were elevated from Endangered to Vulnerable, five from Vulnerable to Endangered, and one from Threatened was elevated to Critically Endangered. Of 23 taxa not evaluated in 2000, 16 are placed as Not Threatened, three Vulnerable, and four Insufficiently Known. These changes are the result of: (1) more available information for evaluation from systematic, biogeography and bio-ecology, (2) changes in human pressures over the species or over their habitats, (3) methodological changes that included recommendations for applying concepts, discussion and consensus among experts and analysis of uncertainties.

A más de una década de la primera Lista Roja de herpetofauna propuesta por la Asociación Herpetológica Argentina (Lavilla et al., 2000), se recategorizaron los anfibios a partir de nueva información taxonómica, biogeográfica, bio-ecológica y de modificaciones metodológicas respecto a la evaluación anterior. Mediante la participación de 35 especialistas de toda la Argentina se reevaluaron 175 taxones de anfibios (171 en la anterior) incluyendo 23 taxones nuevos para Argentina y obteniéndose como resultado la inclusión de 51 especies en la Lista Roja (8 En Peligro, 11 Amenazadas, 32 Vulnerables), 21 Insuficientemente Conocidas y 103 No Amenazadas. En relación con la categorización anterior de la AHA, los cambios de categorías han sido: un taxón descendió de las categorías En Peligro a Amenazado, siete taxones descendieron de Amenazados o Vulnerables a Insuficientemente Conocidos y nueve de Insuficientemente Conocidos a No Amenazados. Tres No Amenazados y 10 Insuficientemente Conocidos fueron elevados a distintas categorías de amenaza, nueve taxones Vulnerables fueron elevados a Amenazados, cinco de Vulnerables a En Peligro, y un taxón fue elevado de Amenazado a En Peligro. De 23 taxones no evaluados en el 2000, 16 se ubican en la categoría No Amenazados, tres en Insuficientemente Conocidos y cuatro en Vulnerables. Estas modificaciones son el resultado de: (1) mayor información sistemática, biogeográfica y bio-ecológica disponible para la evaluación, (2) cambios en cuanto a las presiones antrópicas sobre las especies o sus hábitats, (3) modificaciones metodológicas que incluyeron instructivos para aplicar los conceptos, la discusión y consenso entre especialistas y el análisis de las incertidumbres.

956 downloads Cited 24 times in SciELO

Prevalencia de anticuerpos antifosfolípidos en pacientes con conectivopatías
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Ruiz-Franco, Óscar Emilio

; Guerrero-Vásquez, Marco Enrique

; Montenegro-Verástegui, Carlos

; Díaz-Robles, David Alberto

; Delgado-Silva, Carlos Alberto

; Marangoni de Ruiz, Manuela

Anales de la Facultad de Medicina

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jul 2011, Volume 72 N. 3 Pages 187 - 190

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Objectives: To determine the prevalence of antiphospholipid antibodies in patients with connective tissue diseases. Design: Descriptive transversal study. Setting: Dos de Mayo Hospital and Institute of Clinical Research, San Marcos University, Lima, Peru. Participants: Patients with diagnosis of collagen disease and healthy subjects. Interventions: In 100 patients with collagen disease and 50 healthy subjects, all from Metropolitan Lima and attended between January and November 2008, fibrinogen, prothrombin time, partial activated thromboplastin time, anticardiolipin antibody and lupus anticoagulant were determined. Main outcome measures: Presence of anticardiolipin antibodies and lupus anticoagulant. Results: Patients with collagen diseases presented antiphospholipid antibodies in 17%, lupus anticoagulant in 13%, and IgG anticardiolipin in 4%. Individualizing connective tissue diseases, in 70 patients with systemic erythematous lupus 10 were positive for lupus anticoagulant and 3 had IgG anticardiolipin; of 30 patients with rheumatoid arthritis three were positive to lupus anticoagulant and one presented IgG anticardiolipin. In the group of 50 healthy individuals, only one was positive for lupus anticoagulant. Conclusions: The prevalence of antiphospholipid antibodies in patients with connective tissue was 17%. The most frequent connective tissue disease studied was lupus erythematosus and the most frequent antiphospholipid antibody found was lupus anticoagulant.

Objetivos: Determinar la prevalencia de anticuerpos antifosfolípidos en pacientes con conectivopatías. Diseño: Estudio descriptivo transversal. Institución: Hospital Dos de Mayo e Instituto de Investigaciones Clínicas de la UNMSM, Lima, Perú. Participantes: Pacientes con diagnóstico de colagenopatía y sujetos sanos. Intervenciones: En 100 pacientes con diagnóstico de colagenopatía y 50 sujetos sanos, todos provenientes de Lima Metropolitana y atendidos entre enero y noviembre de 2008, se determinó fibrinógeno, tiempo de protrombina, tiempo parcial de tromboplastina activada, anticuerpos anticardiolipina y anticoagulante lúpico. Principales medidas de resultados: Presencia de anticuerpos anticardiolipina y anticoagulante lúpico. Resultados: Los pacientes con conectivopatías presentaron anticuerpos antifosfolípidos en 17%, anticoagulante lúpico en 13% y anticardiolipina IgG 4%. Al dividir el grupo por conectivopatías, en los 70 pacientes con lupus eritematoso sistémico 10 resultaron positivos para anticoagulante lúpico y 3 tuvieron anticardiolipina IgG; de los 30 pacientes con artritis reumatoide, 3 tuvieron anticoagulante lúpico positivo y 1 presentó anticardiolipina IgG. En el grupo de 50 personas sanas, solo se encontró un caso positivo para anticoagulante lúpico. Conclusiones: La prevalencia de anticuerpos antifosfolípidos en pacientes con conectivopatías fue 17%. La conectivopatía estudiada más frecuente fue el lupus eritematoso sistémico. El anticuerpo antifosfolípido más frecuente fue el anticoagulante lúpico.

Determinación de la utilidad de la relación APE l/t (Antígeno Prostático Específico libre sobre el total) en pacientes con sospecha de cáncer de próstata estudiados por biopsia ecográfica endorrectal
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Marangoni, Alberto

; Secchi, Adrián

; Marchegiani, Silvio

; Surur, Alberto

; Juaneda, Ricardo

; Reginatto, Marcos

Revista argentina de radiología

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sep 2008, Volume 72 N. 3 Pages 287 - 292

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Introduction: The tumor markers are important to decide to perform biopsies in the prostate cancer diagnosis. The goal of this article is to evaluate the diagnosis precision of FPSA (Free Prostatic Specific Antigen) as a tumor marker in patients with Prostatic Cancer suspicion and the FPSA ratio. Material and Method: A total of 248 patients aged between 38 and 88 years old were evaluated from November 2001 to June 2007. It was a prospective study analyzing the FPSA, the presence of echographic hypoecogenic lesion and the anatomopathologic final diagnosis to confirm either malignancy or benignity. Results: The selection of patients to perform Prostatic Endorectal Biopsy (PEB) is a diary dilemma in Urology cabinets. Since PEB is an invasive procedure it is necessary to adjust its indications. Until now the parameters that Urologists are using to indicate the biopsy are: Serum PSA, Clinics findings, and the Endorectal Ultrasound findings (EU). The ratio FPSA/Serum PSA must be considered with more emphasis. Conclusion: The identification of FPSA ratio alteration with a more confidential cut level adjusted to 0.14 can be more sensitive in the prostate cancer diagnosis and for the selection of patients to perform biopsies or avoid unnecessary invasive procedures.

Introducción: Los marcadores tumorales son importantes al momento de decidir la realización de biopsias para el diagnóstico de cáncer de próstata. El objetivo de este trabajo es evaluar la exactitud diagnóstica del APE libre como marcador tumoral en casos de pacientes con sospecha de cáncer prostático en su relación con el APE total (APEL/T) y determinar un valor de corte ajustado. Material y Método: En total, fueron evaluados 248 pacientes de entre 38 y 88 años de edad, en un período comprendido entre noviembre de 2001 y junio de 2007, con un análisis del APE libre, identificación de la presencia de un área hipoecogénica como ayuda diagnóstica y un análisis anatomopatológico para confirmación pospunción prostática endorrectal, realizado en forma prospectiva. Resultados: La identificación de pacientes con cáncer de próstata a través de la sospecha por el APE libre es relativa pero puede ser potenciada con otros hallazgos. Un 23,3% de pacientes con APEL/T por debajo de 0,20 presentaron biopsias positivas, pero, con un valor de 0,14, el porcentaje fue del 60%. Discusión: La identificación de pacientes para ser estudiados mediante Biopsia Prostática Endorrectal (BPE) es un problema de la práctica diaria en los consultorios de Urología. Debido a que la BPE es un procedimiento diagnóstico medianamente invasivo y no exento de morbilidad, es que se debería ajustar su indicación. La relación APEL/T debe ser considerada en este contexto con mayor importancia. Conclusión: La identificación de valores alterados de la relación APE L/T con un valor de corte ajustado a 0,14 puede ayudar en el diagnóstico presuntivo de cáncer de próstata y a la elección de pacientes para biopsia a fin de ahorrar biopsias innecesarias.

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10.

Extraction, purification and biochemical characterization of a peroxidase from Copaifera langsdorffii leaves
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Maciel, Hermelinda Penha Freire

; Gouvêa, Cibele Marli Cação Paiva

; Toyama, Marcos

; Smolka, Marcus

; Marangoni, Sergio

; Pastore, Gláucia Maria

Química Nova

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oct 2007, Volume 30 N. 5 Pages 1067 - 1071

Abstract: En | Text: En | PDF: En

The aim of this work is to obtain, purify and characterize biochemically a peroxidase from Copaifera langsdorffii leaves (COP). COP was obtained by acetone precipitation followed by ion-exchange chromatography. Purification yielded 3.5% of peroxidase with the purification factor of 46.86. The COP optimum pH is 6.0 and the temperature is 35 ºC. COP was stable in the pH range of 4.5 to 9.3 and at temperatures below 50.0 ºC. The apparent Michaelis-Menten constants (Km) for guaiacol and H2O2 were 0.04 mM and 0.39 mM respectively. Enzyme turnover was 0.075 s-1 for guaiacol and 0.28 s-1 for hydrogen peroxide. Copaifera langsdorffii leaves showed to be a rich source of active peroxidase (COP) during the whole year. COP could replace HRP, the most used peroxidase, in analytical determinations and treatment of industrial effluents at low cost.

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11.

Toxoplasmose ocular em cães jovens inoculados com Toxoplasma gondii
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Abreu, Cláudia Bonini de

; Navarro, Italmar Teodorico

; Reis, Antônio Carlos Farias dos

; Souza, Mírian Siliane Batista de

; Machado, Roberto

; Marana, Elizabete Regina Marangoni

; Prudêncio, Leonardo Begale

; Mattos, Marcos Rodrigues

; Tsutsui, Vinícius Suehiro

Ciência Rural

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oct 2002, Volume 32 N. 5 Pages 807 - 812

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

A toxoplasmose é uma doença zoonótica de distribuição mundial que pode infectar uma grande variedade de espécies animais e o homem. No presente trabalho, foram avaliados nove cães jovens inoculados experimentalmente com três cepas diferentes de T. gondii em que se observaram através de microscopia direta e indireta, alterações oftálmicas em sete deles, confirmadas através de retinografia e histopatologia. Com os resultados obtidos, observou-se que as alterações oftálmicas na toxoplasmose adquirida nos cães apareceram já ao término da terceira semana pós-inoculação, mostrando a precocidade das alterações. No exame direto do olho, sete cães apresentaram áreas de hiperrefletividade. Alterações como papiledema, exsudato peripapilar e diminuição da pigmentação do tapetum foram observadas em três cães submetidos à retinografia. O exame histopatológico revelou a presença de discreto infiltrado mononuclear na córnea na região subepitelial em estroma conjuntivo em nível do ângulo da íris, congestão vascular da coróide e edema sub-retiniano em oito cães. Nossos resultados permitem concluir que a toxoplasmose ocular adquirida nos cães é tão significativa quanto na espécie humana. Assim, estudos devem ser aprofundados nesta linha de pesquisa para reforçar os achados.

Toxoplasmosis is a zoonotic disease of worldwide distribution that can infect a great variety of animal species and man. In the present study nine young dogs inoculated with three different samples of Toxoplasma gondii were evaluated. Seven of them showed ophthalmic alterations by means of direct and indirect microscopy, photomicrograph and histopathology. From the results obtained it was noted that ophthalmic alterations were already present at the end of the third week after inoculation, showing the precocity of such alterations. In the direct examination of the eyes, seven dogs presented increased reflective areas. Alterations such as papilledema, peripapillary exsudate and tapetum pigmentation were noted in three dogs submitted to retinograph. The histopathology showed focal mononuclear infiltrate of choroid, congestion of chorioretinal vessels an subretinal edema in eight dogs. Our results allow to conclude that acquired ocular toxoplasmosis in the dogs is as significant as in man and in doing so other studies must be undertaken.

5072 downloads Cited 1 time in SciELO

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