[Application of PCR for the detection of mutations in the genes coding for beta-lactamases].

Abstract:

BACKGROUND:The purpose of this study was to develop a satisfactory technique to detect punctual mutations in blaTEM genes. METHODS:The strains [E. coli HB 101 pBR322 (TEM-1), E. coli J62 RP4 (TEM-2)] were submitted to PCR with primers PL1 and PL2 which amplify the genetic region susceptible of punctual mutations. Then, we developed Southern blot and hybridization with oligonucleotide probes (GIn 37, Lys 37 y Thr 261), corresponding to first and last mutations. RESULTS:A region of 841 bp was amplified using the primers previously described. Hybridization experiments with the Thr 261 probe gave positive signal with both strains (both carry the mutation); GIn 37 only hybridized with TEM-1 and Lys 37 only with TEM-2. CONCLUSIONS:The use of primers which amplify all the region susceptible of mutations in blaTEM and oligonucleotide probes allows the specific detection of point modifications in the original genes by the use of digoxigenin-labeled oligonucleotide probes.

authors

Gallego L,Basaras M,Alonso R,Sarria L,Cisterna R

subject

Has Abstract

pub_date

1993-02-01 00:00:00

pages

80-3

issue

2

eissn

0213-005X

issn

1578-1852

journal_volume

11

pub_type

杂志文章
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    authors: García P,Yrivarren JL,Argumans C,Crosby E,Carrillo C,Gotuzzo E

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  • Sustained virological response at week 12 after interferon-free therapy as criterion for HCV cure definition: Validation in a real-life cohort of HIV-coinfected patients.

    abstract:INTRODUCTION:Sustained virological response (SVR) 12 weeks after the end-of-therapy (EOT) has been correlated with SVR24 for HCV-monoinfection. We aim to validate SVR12 as criterion for definition of HCV cure in HIV-coinfected patients treated with all-oral direct-acting antivirals (DAA). METHODS:Prospectively observa...

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    authors: Domínguez-Domínguez L,Lagarde M,Bisbal O,Matarranz M,Rubio R,Pulido F

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  • Clinical relevance of mechanisms of antifungal drug resistance in yeasts.

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    journal_title:Enfermedades infecciosas y microbiologia clinica

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    doi:10.1016/s0213-005x(02)72842-5

    authors: Sanglard D

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  • [Variation of the incidence and antibiotic sensitivity of Neisseria gonorrhoeae in a 7-year period].

    abstract:BACKGROUND:The aim of this study was to determine the incidence and antibiotic sensitivity of Neisseria gonorrhoeae versus penicillin, tetracycline, cefoxitin, ceftriaxone and spectinomycin from 1988 to 1994 in the province of Soria (Spain). METHODS:From January 1988 to December 1994, clinical samples of 57 strains of...

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    doi:

    authors: Nebreda T,Merino FJ,Campos A,Vázquez M

    更新日期:1996-08-01 00:00:00

  • [Demyelinating disease in human immunodeficiency virus-infected patients without severe immunodepression].

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    journal_title:Enfermedades infecciosas y microbiologia clinica

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    doi:10.1016/j.eimc.2018.11.008

    authors: Del Romero J,García-Pérez JN,Espasa-Soley M

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  • Using mobile applications and websites for the diagnosis of COVID-19 in Spain.

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    journal_title:Enfermedades infecciosas y microbiologia clinica

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    authors: de Górgolas M,Torres R,Verdejo C,Garay J,Robledo A,Ponte MC,Fernández Guerrero ML

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    abstract::The high genetic diversity of human immunodeficiency virus (HIV) poses a significant challenge to the diagnosis and microbiological characterization of HIV infection. Because of the continual emergence of new variants and the global spread of HIV groups, subtypes and recombinant forms, accurate diagnostic tools are of...

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    authors: Toro C,Amor A,Soriano V

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  • [Christopher Columbus flu. A hypothesis for an ecological catastrophe].

    abstract::When Christopher Columbus and his men embarked on the second Colombian expedition to the New World (1493), the crew suffered from fever, respiratory symptoms and malaise. It is generally accepted that the disease was influenza. Pigs, horses and hens acquired in Gomera (Canary Islands) traveled in the same ship. The pi...

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    pub_type: 传,历史文章,杂志文章

    doi:10.1157/13089669

    authors: Muñoz-Sanz A

    更新日期:2006-05-01 00:00:00

  • [Colonic tuberculosis as a cause of rectal bleeding in 2 patients with HIV infection].

    abstract:BACKGROUND:Extrapulmonary tuberculosis is a relatively frequent disease in patients with HIV infection. This may be observed coinciding with pulmonary involvement or without diagnostic data of the same. Within extrapulmonary involvement, gastrointestinal involvement is one of the least frequently observed and its diagn...

    journal_title:Enfermedades infecciosas y microbiologia clinica

    pub_type: 杂志文章

    doi:

    authors: Pintor E,Piret MV,Velasco M,Barreiro P,Ruiz M,Blanco J

    更新日期:1996-11-01 00:00:00

  • [Up to date in sexually transmitted infections: epidemiology, diagnostic approaches and treatments].

    abstract::In the last years, there have been important advances in sexually transmitted infections such as genome sequencing of Treponema pallidum, Chlamydia trachomatis or Mycoplasma genitalium; the new taxonomic position of Calymmatobacterium granulomatis; commercial diagnostic systems based on nucleic acid amplification; the...

    journal_title:Enfermedades infecciosas y microbiologia clinica

    pub_type: 杂志文章,评审

    doi:10.1016/s0213-005x(04)73123-7

    authors: Vázquez F,Otero L,Ordás J,Junquera ML,Varela JA

    更新日期:2004-08-01 00:00:00

  • [Bacteremia and recurrent arthritis caused by Streptococcus pyogenes in a heroin addict with AIDS].

    abstract:BACKGROUND:Streptococcus pyogenes is a bacteria which, at present, is seldom isolated in blood and articular fluid. An intravenous drug addict with human immunodeficiency virus infection, with bacteremia and arthritis by S. pyogenes, associated with tuberculosis is presented. METHODS:Blood and articular fluid cultures...

    journal_title:Enfermedades infecciosas y microbiologia clinica

    pub_type: 杂志文章

    doi:

    authors: Santos J,Fernández A,Arana C,Falces A,Márquez M,Rivero A

    更新日期:1994-10-01 00:00:00

  • [Detection of pathogenicity factors in strains of classical enteropathogenic Escherichia coli].

    abstract:OBJECTIVE:To determine the number of strains of classic enteropathogenic E. coli (EPEC) that have the eae gene, that is considered a pathogenicity factor. MATERIAL AND METHODS:The presence of the eae gene has been evaluated on 62 EPEC strains of ten different serogroups, isolated from children with gastroenteritis. R...

    journal_title:Enfermedades infecciosas y microbiologia clinica

    pub_type: 杂志文章

    doi:

    authors: Frías C,Margall N,Mirelis B,Prats G

    更新日期:1998-06-01 00:00:00

  • [Cost and workload in the parasitology laboratory derived from attention to the immigrant].

    abstract:INTRODUCTION:To determine the cost and volume of work implied in providing a parasitological diagnosis when attending immigrants in a referral Tropical Medicine Unit. METHODS:The total number and type of samples, requests processed and parasitology laboratory costs were quantified after attending 1258 immigrants durin...

    journal_title:Enfermedades infecciosas y microbiologia clinica

    pub_type: 杂志文章

    doi:

    authors: Turrientes Mdel C,Huerga H,López-Vélez R

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  • [Diarrhea associated with Clostridium difficile. One-year retrospective study at a tertiary hospital].

    abstract:BACKGROUND:Diarrhea associated with Clostridium difficile is a health care problem of growing importance in the last few years specially in the hospital environment. The epidemiologic data and factors associated with this disease have not, to date, been sufficiently studied in Spain. METHODS:The cases of diarrhea asso...

    journal_title:Enfermedades infecciosas y microbiologia clinica

    pub_type: 杂志文章

    doi:

    authors: Barreiro PM,Pintor E,Rosario Burón M,Díaz B,Valverde J,de la Torre F

    更新日期:1998-10-01 00:00:00

  • [Patient characteristics and health care burden during the influenza A (H1N1) 2009 pandemic in the university Hospital Vall d'Hebron of Barcelona].

    abstract:BACKGROUND AND OBJECTIVE:The influenza A (H1N1) 2009 pandemic initially had a mild impact in Catalonian hospitals, but in the autumn there was an important pandemic wave. We describe the main characteristics of patients seen in the Vall d'Hebron University Hospital in Barcelona (HUVH) during this pandemic, the risk fac...

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  • [Mechanisms of plasmid-mediated resistance to quinolones].

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  • Executive summary of imported infectious diseases after returning from foreign travel: Consensus document of the Spanish Society for Infectious Diseases and Clinical Microbiology (SEIMC).

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    authors: Pérez-Arellano JL,Górgolas-Hernández-Mora M,Salvador F,Carranza-Rodríguez C,Ramírez-Olivencia G,Martín-Echeverría E,Rodríguez-Guardado A,Norman F,Velasco-Tirado V,Zubero-Sulibarría Z,Rojo-Marcos G,Muñoz-Gutierrez J,Ramos-Rincón J

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  • [The microbiology laboratory's contribution to the surveillance and control of outbreaks caused by nonfermentative Gram-negative bacilli].

    abstract::Pseudomonas aeruginosa, Acinetobacter baumannii and Stenotrophomonas maltophilia are, among others, the most important nonfermentative Gram-negative bacilli within hospitals. These organisms are able to cause different types of nosocomial infections in predisposed patients, and P. aeruginosa and A. baumannii in partic...

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  • [At what time and with which combinations should maraviroc be indicated in the new antiretroviral treatment scenario?].

    abstract::Maraviroc is a selective and slowly reversible antagonist of the CCR5 co-receptor which has shown to have powerful antiviral activity, in vitro, against a wide range of HIV clinical isolates, including strains multi-resistant to 4 classes of pre-existing antiretroviral drugs. Maraviroc is active against HIV population...

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  • Strategies for the cure of HIV infection.

    abstract::The disadvantages of the long-term administration of antiretroviral therapy as well as the huge number of affected persons have placed the cure of HIV as a primary goal of Public Health. HIV may persist in the organism by at least four mechanisms: a latently infected cellular reservoir, the persistent replication of H...

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  • [Prevalence of human immunodeficiency virus infection in drug addicts assisted from 1991 to 1996 at a detoxification center in Castilla y Leon].

    abstract:BACKGROUND:The Word Health Organization (WHO) has recommended epidemiologic surveillance of infection by the human immunodeficiency virus (HIV) in high risk populations. An important decrease has recently been observed in the prevalence of HIV infection in drug addicts in different regions in Spain with notable differe...

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    doi:

    authors: Alba A,Terán A,Cuende JI,Sánchez S,González C

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  • [New anaerobic bacterial species in human infections].

    abstract::This review offers succinct, precise, and complete information based on the available data concerning new anaerobic bacterial species involved in infectious diseases in humans. All hitherto undescribed species, those not previously implicated in clinical conditions, those with confirmed implication in human disease th...

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  • [Role of the hospital environment and equipment in the transmission of nosocomial infections].

    abstract::The hospital environment is both a reservoir and source of infection for the hospital patient. Several areas around the patient should be considered: air, toilet water coming into contact with the patient, staff and medical devices, food, surfaces, and instruments contacting the patient's skin and mucosa, and sterile ...

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    authors: López-Cerero L

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  • [Pneumococcal pneumonia in the era of heptavalent pneumococcal conjugate vaccine].

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