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1.
Braz. j. microbiol ; 46(3): 753-757, July-Sept. 2015. tab, ilus
Article in English | LILACS | ID: lil-755797

ABSTRACT

Quinolones and fluoroquinolones are widely used to treat uropathogenic Escherichia coli infections. Bacterial resistance to these antimicrobials primarily involves mutations in gyrA and parC genes. To date, no studies have examined the potential relationship between biochemical characteristics and quinolone resistance in uropathogenic E. coli strains. The present work analyzed the quinolone sensitivity and biochemical activities of fifty-eight lactose-negative uropathogenic E. coli strains. A high percentage of the isolates (48.3%) was found to be resistant to at least one of the tested quinolones, and DNA sequencing revealed quinolone resistant determining region gyrA and parC mutations in the multi-resistant isolates. Statistical analyses suggested that the lack of ornithine decarboxylase (ODC) activity is correlated with quinolone resistance. Despite the low number of isolates examined, this is the first study correlating these characteristics in lactose-negative E. coli isolates.

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Subject(s)
Humans , Drug Resistance, Multiple, Bacterial/genetics , Escherichia coli Infections/drug therapy , Fluoroquinolones/therapeutic use , Lactose/metabolism , Nalidixic Acid/therapeutic use , Ornithine Decarboxylase/genetics , Urinary Tract Infections/drug therapy , Uropathogenic Escherichia coli/genetics , Anti-Bacterial Agents/therapeutic use , Brazil , DNA Gyrase/genetics , DNA Topoisomerase IV/genetics , Decarboxylation/genetics , Decarboxylation/physiology , Escherichia coli Infections/microbiology , Microbial Sensitivity Tests , Ornithine/metabolism , Urinary Tract Infections/microbiology , Uropathogenic Escherichia coli/drug effects , Uropathogenic Escherichia coli/enzymology , Uropathogenic Escherichia coli/isolation & purification
2.
Femina ; 43(1)jan.-fev. 2015.
Article in Portuguese | LILACS | ID: lil-754438

ABSTRACT

Este artigo objetivou oferecer uma visão atual do papel dos marcadores gênicos no carcinoma de endométrio. Os principais genes descritos são o TP53, o Bcl-2, o c-erbB2 e o p16. Nos últimos anos, com a ampliação do conhecimento na área de biologia molecular, tem sido sugerido que os marcadores biológicos possam ser tão ou mais importantes do que os fatores prognósticos convencionais.


The main of this study is offer the present situation of genic markers in endometrial carcinoma. The principal genes have been described are TP53, Bcl-2, c-erbB2 and p16. In the last few years, thanks to improvements in molecular biology, some biological markers have been suggested to be as important as or more important than conventional prognostic factors.


Subject(s)
Humans , Female , Adult , Endometrial Neoplasms , Biomarkers/analysis , /physiology , /physiology , Hysterectomy , Genetic Markers/genetics
3.
Clin. biomed. res ; 35(1): 27-34, 2015. tab
Article in Portuguese | LILACS | ID: lil-780279

ABSTRACT

Neste estudo, descreve-se o perfil clínico das pacientes e as características histopatológicas dos carcinomas de endométrio tratados no setor de Oncologia Genital do Hospital de Clínicas de Porto Alegre (HCPA), assim como as formas de tratamento, fatores prognósticos e sobrevida. Métodos: Estudo de coorte histórica incluindo todas as pacientes submetidas a tratamento cirúrgico primário entre 1996 e 2012. Após revisão de prontuários médicos, foram analisadas as variáveis idade, status hormonal, tipo histológico e grau tumoral, invasão miometrial, estadiamento cirúrgico, cirurgia realizada, tratamento complementar e sobrevida. Resultados: Cento e sessenta e quatro pacientes foram incluídas no estudo, com idade média de 64,2 anos (31-95 anos), sendo quase 90% delas pós-menopáusicas. O tempo de seguimento variou de 4 dias a 14,6 anos. O tipo histológico endometrioide foi o mais encontrado (78% dos casos). A histerectomia com salpingo-ooforectomia bilateral com linfadenectomia pélvica foi a cirurgia mais realizada (77,5%). Tratamento complementar foi realizado em 57,9% das pacientes, sendo a radioterapia o tratamento de escolha em 87,4% deles. Ocorreram 36 óbitos (22%) durante o seguimento, com uma sobrevida média global de 125 meses. Em análise bivariada, idade ≥ 65 anos, tipo histológico não endometrioide, tumores pouco diferenciados (G3), invasão miometrial ≥ 50% e metástase linfonodal relacionaram-se significativamente a um menor tempo de sobrevida. Em análise multivariada, a histologia não endometrioide, estádio III, estádio IV e a presença de comprometimento linfonodal foram significativamente associados ao óbito. Conclusão: Os resultados encontrados são compatíveis com a literatura existente e vêm em acréscimo à escassa estatística nacional...


This study describes the clinical profile and the hystopathologic characteristics of endometrial carcinomas from patients treated at the Gynecologic Oncology department of Hospital de Clínicas de Porto Alegre (HCPA), as well as the forms of treatment, prognostic factors, and survival. Methods: Historic cohort study including all patients subjected to primary surgical treatment between 1996 and 2012. After review of the medical records, the variablesage, hormonal status, tumor histologic type and grade, myometrial invasion, surgical staging, performed surgery, complementary treatment, and survival were analyzed. Results: One hundred sixty four patients were included, with a mean age of 64.2 years (31-95 years), of which almost 90% were postmenopausal women. Follow-up time ranged from 4 days to 14.6 years. Endometrioid adenocarcinoma was the most frequently histological type (78% of cases). Hysterectomy with bilateral salpingooophorectomy plus pelvic linfadenectomy was the most frequently performed surgery (77.5%). Adjuvant treatment was held in 57.9% of the patients, with radiotherapy being the treatment of choice in 87.4%. Thirty-six deaths (22%) occurred during followup, with a mean overall survival of 125 months. In the bivariate analysis, age ≥ 65 years, non-endometrioid histology, poorly differentiated tumors (G3), myometrial invasion ≥ 50%, and lymph node metastasis were correlated to lower survival. In the multivariate analysis, non-endometrioid histology, stage III, stage IV and lymph node metastasis were significantly associated with death. Conclusion: The results found are compatible with the existing literature and contribute to the scarce existing national statistics...


Subject(s)
Humans , Female , Adenocarcinoma/surgery , Adenocarcinoma/mortality , Adenocarcinoma/radiotherapy , Endometrial Neoplasms/epidemiology
4.
Rev. AMRIGS ; 53(3): 313-318, jul.-set. 2009. ilus
Article in Portuguese | LILACS | ID: lil-566970

ABSTRACT

O câncer de ovário apresenta a maior taxa de mortalidade entre as neoplasias ginecológicas, sendo a maioria dos casos diagnosticados em estágio avançado. O diagnóstico precoce é passo fundamental no manejo e controle da doença. No entanto, estratégias de rastreamento populacional não têm se mostrado efetivas para a redução de mortalidade. O rastreamento em população de alto risco (história familiar), por outro lado, é recomendado por comitês especializados. A associação entre a dosagem sérica de CA 125 e a US transvaginal, feita de forma periódica e sequencial, é o método mais utilizado em programas de rastreamento.


Ovarian cancer has the highest mortality rate among gynecological neoplasias, most of the cases being diagnosed at advanced stage. Early diagnosis is crucial for management and control of the disease. Population screening strategies, however, have not been effective in reducing mortality. On the other hand, the screening in high risk populations (family history) is recommended by expert committees. The combination of serum CA 125 measurement and transvaginal ultrasound, performed in periodical and sequential fashion, is the most common method used in screening programs.


Subject(s)
Humans , Female , Adult , Middle Aged , Diagnosis , Ovarian Neoplasms/diagnosis , Ovarian Neoplasms/mortality , Ovarian Neoplasms/pathology , Ovarian Neoplasms/prevention & control , Ovarian Neoplasms/psychology , Mass Screening/methods , Mass Screening/psychology , Mass Screening/trends , Incidence
5.
Article in English | LILACS | ID: lil-417986

ABSTRACT

Buschke-Lõwenstein carcinomas are rare manifestations of condyloma acuminatum. This study presents two different clinical manifestations of Buschke-Lõwenstein carcinoma. Correct diagnosis is a challenge. Despite the absence of histological signs of malignancy, malignant transformation into invasive squamous cell carcinoma may occur. Early and radical excision remains as the treatment of choice


Subject(s)
Humans , Female , Adult , Middle Aged , Condylomata Acuminata , Papillomaviridae , Carcinoma, Squamous Cell , Carcinoma, Verrucous , Papillomavirus Infections
6.
Article in Portuguese | LILACS | ID: lil-360274

ABSTRACT

Rabdomiossarcomas uterinos são raros. São caracterizados por diagnóstico tardio e prognóstico reservado. Neste artigo é relatada a manifestação deste tumor em uma paciente de 37 anos. Rabdomiossarcomas são tratados de forma semelhante à maioria dos sarcomas uterinos. A terapia inicial é laparotomia exploradora, com histerectomia total e salpingooforectomia bilateral. Devido à baixa frequencia, exames de rastreamento não estão indicados. São melhor tratados por especialistas, mas ginecologistas e clínicos gerais têm papel importante na precocidade do diagnóstico. Em casos suspeitos, biópsia endometrial ou dilatação e curetagem podem auxiliar o diagnóstico.


Subject(s)
Humans , Female , Cervix Uteri , Rhabdomyosarcoma , Hemorrhage , Uterine Neoplasms
8.
Rev. ginecol. obstet ; 13(2): 67-69, abr.-maio 2002. ilus, tab
Article in Portuguese | LILACS | ID: lil-325645

ABSTRACT

Os tumores de ovario representam 1,2 a 1,5 por cento das doencas malignas , na infancia e ate 20 por cento deles, ocorrem antes da menarca. Neste trabalho e apresentada a experiencia do setor de oncologia genital feminina do Hospital das Clinicas de Porto Alegre, no tratamento...


Subject(s)
Humans , Child , Adolescent , Ovarian Diseases/diagnosis , Ovarian Neoplasms , Ovarian Diseases/pathology , Ovarian Diseases/therapy , Ovarian Neoplasms
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