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1.
Sci Total Environ ; 950: 175230, 2024 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-39122028

RESUMEN

The dipper (Cinclus cinclus) is a species strongly linked to the riparian ecosystem, known to feed on aquatic macroinvertebrates, which are sensitive to water pollution. For this, dippers have been proposed as useful bioindicators of water quality. While the distribution and ecology of the dipper are well known in Northern European rivers, few studies focus on this in Central Italy, lacking data for dipper conservation. Here, we aimed to (i) assess the dipper occurrence related to water quality using biotic indices based on diatom and macroinvertebrate communities, and (ii) evaluate the river ecosystem's overall state, through the River Functionality Index and land-use analysis in buffer areas. Overall, water quality alone does not explain the dipper occurrence, as the species was not found in many potentially suitable sites with good or high-water quality. Moreover, the diversity of the diatom and macroinvertebrate communities was not a sufficient constraint either. Conversely, the dipper occurrence significantly correlated with the River Functionality Index, which integrates several riparian ecosystem factors, indicating that well-preserved ecosystems with high functionality levels are important for dipper occurrence. Land use analyses in the areas surrounding the presence sites have shown, although not significantly, a fair level of naturalness, potentially favouring the riparian zone maintenance. As the dipper was considered in decline and threatened in Central Italy, further research on its auto-ecology and conservation threats is urgently needed. Finally, given the link between the species and the riparian ecosystem, a charismatic species such as the dipper could be used as an umbrella species in protection and conservation projects for the benefit of the entire riparian belt, which represents a buffer area of fundamental importance between terrestrial and aquatic ecosystems, although often resulted severely reduced and fragmented.

2.
Clin Microbiol Infect ; 25(1): 111.e1-111.e4, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30036673

RESUMEN

OBJECTIVES: The aim was to investigate an outbreak of invasive meningococcal disease (IMD) in Southern Sardinia. METHODS: Epidemiological and microbiological investigations were performed. The latter included antimicrobial susceptibility testing and whole-genome sequencing (WGS). RESULTS: Seven individuals with severe IMD were found to be infected with serogroup B (MenB) Neisseria meningitidis in the first quarter of 2018. Five of the seven cases (five males; mean age 19 years; range 18-21 years; CFR 40%) were due to a unique strain B:P1.5-1,10-8:F3-6:ST-11(cc11), probably switched from the hypervirulent C-cc11, as confirmed by WGS. All five patients had attended the same nightclub in the 2 weeks prior to symptom onset. Public health measures, including chemoprophylaxis of contacts and active immunization against MenB, were implemented. CONCLUSIONS: We observed five IMD cases due to the same switched MenB strain. The hypervirulent B:P1.5-1,10-8:F3-6:ST-11(cc11) strain, probably switched from C-cc11, is of concern due to the observed high virulence and case fatality rates. All the patients shared the same place of probable exposure. The molecular characterization of the invasive strain allowed the outbreak to be confirmed, which was then controlled through timely public health action.


Asunto(s)
Cápsulas Bacterianas/inmunología , Brotes de Enfermedades , Infecciones Meningocócicas/epidemiología , Infecciones Meningocócicas/microbiología , Neisseria meningitidis/patogenicidad , Adolescente , Antibacterianos/uso terapéutico , Antígenos Bacterianos/inmunología , Cápsulas Bacterianas/genética , Femenino , Humanos , Italia/epidemiología , Masculino , Infecciones Meningocócicas/transmisión , Persona de Mediana Edad , Neisseria meningitidis/genética , Serogrupo , Virulencia , Secuenciación Completa del Genoma , Adulto Joven
3.
Transplant Proc ; 49(4): 638-641, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28457362

RESUMEN

BACKGROUND: Cytomegalovirus (CMV) represents the leading cause of viral infection in kidney transplantation patients. The aim of the present study was to evaluate the efficacy and safety of pre-emptive anti-CMV therapy. MATERIALS AND METHODS: We performed a retrospective analysis based on data from 227 consecutive patients transplanted from 2010 to 2015, of whom 38 (16.6%) were from a living donor, considering: incidence of rejection, CMV organ localization, and graft and patient survival. All patients underwent induction immunosuppressive therapy followed by maintenance therapy consisting of corticosteroids, antimetabolites, and tacrolimus (median basal dose = 5.3 ng/mL). The timing for the detection of plasma CMV-DNA in the post-transplantation period was: weekly (first month), quarterly (second through twelfth month), and then half-yearly. RESULTS: CMV viremia was positive in 98 of 227 (43.1%) patients, with an average of 248,482 copies/mL (range: 250 copies/mL to 9,745,000 copies/mL) and the first positivity after a median period of 2.5 months from kidney transplantation (range: 0.2 months to 43 months). A total of 49 of 227 (21.5%) patients were treated with antivirals: 27 of 49 (55.1%) because of CMV organ localization (gastrointestinal = 20, lungs = 3, kidney = 2, liver = 2). Fourteen of 227 (6.1%) patients had a rejection episode, 7 (3.1%) of which were CMV-related. Fifteen of 227 (6.6%) patients died (noninfectious CMV-related complications = 8, cardiovascular causes = 6, bleeding complications = 1). CONCLUSION: Our experience confirms the validity of the pre-emptive anti-CMV therapy in renal transplantation patients.


Asunto(s)
Profilaxis Antibiótica/métodos , Antivirales/uso terapéutico , Infecciones por Citomegalovirus/prevención & control , Trasplante de Riñón/efectos adversos , Adulto , Citomegalovirus , Infecciones por Citomegalovirus/epidemiología , Femenino , Humanos , Incidencia , Donadores Vivos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
4.
J Infect ; 73(2): 136-44, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-27235364

RESUMEN

OBJECTIVES: To describe a spatio-temporal cluster of invasive meningococcal disease (IMD) due to serogroup C meningococci, occurred in a restricted area of Tuscany between January and October 2015, and the results of whole genome sequencing (WGS). METHODS: Surveillance activities and public health measures were implemented in the Region. Bacterial isolates from IMD cases were characterized by the National Reference Laboratory of the Istituto Superiore di Sanità (ISS), and WGS was performed on available strains. The kSNP software was used to identify core genome SNPs. RESULTS: Overall, 28 IMD cases due to meningococcus C were identified up to 31st October, 2015. Of them, 26 were due to meningococcus C:P1.5-1,10-8: F3-6:ST-11 (cc11) and 2 to C:P1.5-1,10-8: F3-6:ST-2780 (cc11). WGS of 13 meningococci isolated during the outbreak occurred in Tuscany in 2015 showed higher similarity when compared with those of 47 C: P1.5-1,10-8: F3-6:ST-11 (cc11) invasive strains from sporadic cases previously detected in Italy. CONCLUSIONS: A highly aggressive meningococcal C strain was involved in the cluster of severe IMD occurred in Tuscany, a Region with high vaccine coverage among children. Whether this was due to low herd immunity related to the short duration of vaccine protection needs further investigation.


Asunto(s)
Genoma Bacteriano , Infecciones Meningocócicas/epidemiología , Neisseria meningitidis Serogrupo C/genética , Neisseria meningitidis Serogrupo C/aislamiento & purificación , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Antígenos Bacterianos/inmunología , Niño , Brotes de Enfermedades , Monitoreo Epidemiológico , Femenino , Humanos , Inmunidad Colectiva , Incidencia , Italia/epidemiología , Masculino , Infecciones Meningocócicas/inmunología , Infecciones Meningocócicas/microbiología , Vacunas Meningococicas/inmunología , Persona de Mediana Edad , Neisseria meningitidis Serogrupo C/clasificación , Neisseria meningitidis Serogrupo C/patogenicidad , Análisis de Secuencia de ADN , Serotipificación , Agrupamiento Espacio-Temporal , Adulto Joven
5.
Diabet Med ; 33(6): 734-41, 2016 06.
Artículo en Inglés | MEDLINE | ID: mdl-27194173

RESUMEN

Outpatient clinical decision support systems have had an inconsistent impact on key aspects of diabetes care. A principal barrier to success has been low use rates in many settings. Here, we identify key aspects of clinical decision support system design, content and implementation that are related to sustained high use rates and positive impacts on glucose, blood pressure and lipid management. Current diabetes clinical decision support systems may be improved by prioritizing care recommendations, improving communication of treatment-relevant information to patients, using such systems for care coordination and case management and integrating patient-reported information and data from remote devices into clinical decision algorithms and interfaces.


Asunto(s)
Atención Ambulatoria/tendencias , Sistemas de Apoyo a Decisiones Clínicas/tendencias , Diabetes Mellitus/terapia , Algoritmos , Difusión de Innovaciones , Predicción , Prioridades en Salud , Humanos , Capacitación en Servicio , Liderazgo , Grupo de Atención al Paciente/normas , Mejoramiento de la Calidad/tendencias , Flujo de Trabajo
6.
Oncoimmunology ; 4(8): e1019978, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26405573

RESUMEN

The multifaceted immunomodulatory activity of DNA hypomethylating agents improves immunogenicity and immune recognition of neoplastic cells; thus, we predicted they could be utilized to design new immunotherapeutic combinations in cancer. Testing this hypothesis, the antitumor efficacy of the DNA hypomethylating agent 5-aza-2'-deoxycytidine (5-AZA-CdR) combined with the anti-CTLA-4 monoclonal antibody (mAb) 9H10 in syngeneic transplantable murine models was investigated. Murine mammary carcinoma TS/A or mesothelioma AB1 cells were injected in BALB/c, athymic nude, and SCID/Beige mice that were treated with 5-AZA-CdR, mAb 9H10, or their combination. Tumor volumes were captured at different time-points; molecular and immunohistochemical assays investigated changes in neoplastic and normal tissues. A significant antitumor effect of 5-AZA-CdR combined with mAb 9H10 was found: compared to controls, a 77% (p < 0.01), 54% (p < 0.01) and 33% (p = 0.2) decrease in TS/A tumor growth was induced by 5-AZA-CdR combined with mAb 9H10, 5-AZA-CdR or mAb 9H10, respectively. These antitumor activities were confirmed utilizing the AB1 model. 5-AZA-CdR-based regimens induced a promoter-demethylation-sustained tumor expression of cancer testis antigens. MHC class I expression was up-regulated by 5-AZA-CdR. Antitumor efficacy of 5-AZA-CdR in athymic nude and SCID/Beige mice was not increased by mAb 9H10. In BALB/c mice, combined treatment induced the highest tumor infiltration by CD3+ lymphocytes, which included both CD8+ and CD4+ T cells; no such infiltrates were observed in normal tissues. This significant immune-related antitumor activity of 5-AZA-CdR combined with CTLA-4 blockade, demonstrated in highly aggressive mouse tumor models, provides a strong scientific rationale to implement epigenetically-based immunotherapies in cancer patients.

7.
Genome Announc ; 3(4)2015 Aug 13.
Artículo en Inglés | MEDLINE | ID: mdl-26272575

RESUMEN

Gonorrhea may become untreatable due to the spread of resistant or multidrug-resistant strains. Cefixime-resistant gonococci belonging to sequence type 1407 have been described worldwide. We report the genome sequence of Neisseria gonorrhoeae strain G2891, a multidrug-resistant isolate of sequence type 1407, collected in Italy in 2013.

8.
Vaccine ; 33(31): 3678-81, 2015 Jul 17.
Artículo en Inglés | MEDLINE | ID: mdl-26087297

RESUMEN

BACKGROUND: In Italy, the incidence of Invasive Meningococcal Disease (IMD) was around 0.28 per 100,000 over the last years. Since the risk IMD is usually high among infants aged less than 1 year, we decided to evaluate the trend of IMD cases reported between 2006 and 2014 in this age group. In particular, the study aim was to describe the main characteristics of IMD cases in infants following the introduction of MCC vaccine (2005) and to estimate the number of cases which are potentially preventable through early vaccination. METHODS: The National Surveillance System of Bacterial Meningitis was established in 1994 and in 2007 was extended to all invasive bacterial diseases. Clinical data and isolates and/or clinical samples are collected from hospitalized patients throughout the country. IMD cases are reported by clinicians to the local health authorities, and samples are sent to the Reference Laboratory at the Istituto Superiore di Sanità for further characterization and storage at -80°C. In particular, serogroup identification is obtained by agglutination with commercial antisera or by multiplex PCR. RESULTS: The annual incidence for infants <1 year old remained rather stable of 3.6 per 100,000, with several upward and downward oscillations and a peak in 2010. The incidence of IMD among infants was more than 10 times higher than the overall rate of IMD observed in Italy. Finally, serogroup B was more frequently detected among infants aged <1 year, accounting for 65% of the total (p<0.01). CONCLUSIONS: During the study period, IMD incidence reported among infants aged less than one year old was 10 times higher than the overall rate, and serogroup B was the most commonly detected over time. The long-term impact of meningococcal C conjugate vaccine and the effect of the introduction of meningococcal B vaccination among infants need to be evaluated.


Asunto(s)
Meningitis Meningocócica/epidemiología , Meningitis Meningocócica/prevención & control , Vacunas Meningococicas/administración & dosificación , Vacunas Meningococicas/inmunología , Neisseria meningitidis/inmunología , Neisseria meningitidis/aislamiento & purificación , Serotipificación , Monitoreo Epidemiológico , Femenino , Humanos , Incidencia , Lactante , Recién Nacido , Italia/epidemiología , Masculino , Meningitis Meningocócica/microbiología , Reacción en Cadena de la Polimerasa Multiplex
9.
Epidemiol Infect ; 143(8): 1742-50, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25308801

RESUMEN

We investigated the effect of climatic, demographic factors and intra-country geographical variations on the incidence of invasive meningococcal disease (IMD) in Italy. For this purpose, incidence rates of IMD cases reported in Italy between 1994 and 2012 were calculated, and a cluster analysis was performed. A geographical gradient was determined, with lower incidence rates in central and southern Italy, compared to the northern parts, where most clusters were observed. IMD rates were higher in medium-sized towns than in villages. Adults were at lower risk of IMD than children aged ⩽4 years. IMD incidence tended to decrease with increasing monthly mean temperatures (incidence rate ratio 0·94, 95% confidence interval 0·90-0·99). In conclusion, geographical variations in IMD incidence were found, where age and temperature were associated with disease occurrence. Whether geographical variations should be considered in national intervention plans is still a matter for discussion.


Asunto(s)
Altitud , Clima , Meningitis Meningocócica/epidemiología , Adolescente , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Análisis por Conglomerados , Femenino , Humanos , Incidencia , Lactante , Recién Nacido , Italia/epidemiología , Masculino , Infecciones Meningocócicas/epidemiología , Persona de Mediana Edad , Análisis Espacio-Temporal , Urbanización , Adulto Joven
10.
Genome Announc ; 2(6)2014 Dec 04.
Artículo en Inglés | MEDLINE | ID: mdl-25477415

RESUMEN

Meningococcal serogroup C strains, in particular those belonging to the ST-11 clonal complex, are known to cause invasive diseases worldwide. We report the genome sequence of a Neisseria meningitidis strain linked to a cluster of cases of invasive meningococcal disease on a cruise ship that was described in 2012.

11.
J Prev Med Hyg ; 53(2): 109-12, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23240171

RESUMEN

In the period 2008-2010, 309 Neisseria meningitidis, isolated in Italy within the National Surveillance of the Invasive Meningococcal Diseases, have been tested for their phenotypic and genotypic characteristics. The main results obtained are: (a) an increase of the strains of serogroup B and a decrease of serogroup C; (b) a phenotypic and genotypic variability of the ST-41/44 clonal complex, the most frequently isolated among serogroup B strains; (c) a decrease of ST-8 clonal complex among serogroup C meningococci whereas strains belonging to ST-11 clonal complex are nowadays the most frequently isolated.


Asunto(s)
Técnicas de Tipificación Bacteriana , Neisseria meningitidis/clasificación , Genotipo , Humanos , Italia , Neisseria meningitidis/aislamiento & purificación , Fenotipo
12.
Euro Surveill ; 17(50)2012 Dec 13.
Artículo en Inglés | MEDLINE | ID: mdl-23241233

RESUMEN

We describe a cluster of four cases of invasive meningococcal disease that occurred on a cruise ship sailing along the Italian coast in October 2012. All four cases were hospitalised with severe illness and one of them died. This report illustrates the importance of rapid implementation of emergency control measures such as administration of prophylaxis to all crew members and passengers to prevent the spread of the disease in such a close environment.


Asunto(s)
Infecciones Meningocócicas/diagnóstico , Neisseria meningitidis Serogrupo C/aislamiento & purificación , Adulto , Antiinfecciosos/uso terapéutico , Líquido Cefalorraquídeo/microbiología , Femenino , Hospitalización , Humanos , Italia/epidemiología , Masculino , Infecciones Meningocócicas/tratamiento farmacológico , Infecciones Meningocócicas/epidemiología , Infecciones Meningocócicas/microbiología , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Tipificación de Secuencias Multilocus , Neisseria meningitidis Serogrupo C/efectos de los fármacos , Neisseria meningitidis Serogrupo C/genética , Índice de Severidad de la Enfermedad , Navíos/estadística & datos numéricos , Secuencias Repetidas en Tándem , Viaje , Resultado del Tratamiento
13.
G Chir ; 30(4): 141-3, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19419613

RESUMEN

We present the first case reported in the literature of small bowel obstruction due to internal incarcerated hernia through a diagnosed bilateral broad ligament defect, and treated by laparoscopy. A 36-year-old white woman, gravida 0, para 0, was admitted to our hospital with intestinal obstruction symptoms. A laparoscopic approach was performed with 3 trocars and internal incarcerated hernia due to a defect in the right broad ligament was found. There was a similar defect in the left broad ligament. The small bowel, once reduced, appeared viable. Closure of both defects was carried out by laparoscopy with 2-0 monofilament absorbable running suture. The patient's postoperative course was unremarkable and she was discharged from the hospital 4 days after the surgical procedure. The classification of defect was a bilateral fenestrae type I defect. Congenital ethiology is plausible because of the presence of bilateral defects and the absence of surgical trauma, pregnancy, pelvic inflammatory disease, endometriosis in the clinical history.


Asunto(s)
Ligamento Ancho/anomalías , Herniorrafia , Enfermedades del Íleon/etiología , Obstrucción Intestinal/etiología , Laparoscopía , Adulto , Ligamento Ancho/cirugía , Femenino , Estudios de Seguimiento , Hernia/complicaciones , Humanos , Enfermedades del Íleon/diagnóstico por imagen , Obstrucción Intestinal/diagnóstico por imagen , Radiografía Abdominal , Factores de Tiempo , Resultado del Tratamiento
14.
Euro Surveill ; 14(16)2009 Apr 23.
Artículo en Inglés | MEDLINE | ID: mdl-19389338

RESUMEN

Two clusters of invasive meningococcal disease in the north of Italy both due to serogroup C/ST-11 clonal complex are here described. The objective of the investigation was to analyse the phenotype and the genotype of meningococci involved in the two clusters which were of national relevance due to the fatal outcome of the majority of cases (six of the total of 10 cases). All the strains were C:2a:P1.5 ST-11/ET-37 clonal complex. Two pulsed field gel electrophoresis (PFGE) and variable number tandem repeats (VNTR) profiles were identified, one for each cluster. VNTRs were different from those detected in Italy for C/ST-11 strains isolated from sporadic cases in the same period. This laboratory surveillance report highlights the importance and the crucial role of molecular characterisation to confirm the relatedness among meningococci responsible for clusters of cases.


Asunto(s)
Meningitis Meningocócica/diagnóstico , Meningitis Meningocócica/epidemiología , Neisseria meningitidis Serogrupo C/aislamiento & purificación , Adolescente , Adulto , Análisis por Conglomerados , Humanos , Italia/epidemiología , Meningitis Meningocócica/genética , Persona de Mediana Edad , Neisseria meningitidis Serogrupo C/genética , Adulto Joven
15.
Pediatr Surg Int ; 24(9): 1069-71, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18696083

RESUMEN

We are reporting the case of a neonate which died on 16th day of life due to a fatal evolution of a rare association of cystic fibrosis and Hirschsprung's disease.


Asunto(s)
Enfermedades del Colon/etiología , Fibrosis Quística/complicaciones , Enfermedad de Hirschsprung/complicaciones , Enfermedades del Íleon/etiología , Ileus/etiología , Meconio , Resultado Fatal , Humanos , Recién Nacido , Masculino
16.
Pediatr Surg Int ; 24(3): 365-9, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17726610

RESUMEN

The presentation of congenital diaphragmatic hernia (CDH) at birth may fall outside the typical features (cyanosis, tachypnea and respiratory failure), manifesting, instead, also with others pictures that make the diagnosis difficult or even impossible. We report a case of CDH presenting as a pneumothorax and a perforative peritonitis due to an antenatal gastric perforation.


Asunto(s)
Hernia Diafragmática/cirugía , Perforación Intestinal/cirugía , Peritonitis/cirugía , Neumotórax/cirugía , Femenino , Hernia Diafragmática/complicaciones , Hernia Diafragmática/diagnóstico por imagen , Humanos , Recién Nacido , Perforación Intestinal/complicaciones , Perforación Intestinal/diagnóstico por imagen , Peritonitis/diagnóstico por imagen , Peritonitis/etiología , Neumotórax/diagnóstico por imagen , Neumotórax/etiología , Radiografía
17.
Minerva Chir ; 62(1): 25-31, 2007 Feb.
Artículo en Italiano | MEDLINE | ID: mdl-17287691

RESUMEN

AIM: Nowadays the incidence of tuberculosis is increasing in some population groups (subjects immigrated from developing countries, affected from HIV infection, or undergoing immunosuppressive therapy) and to the development of multidrug-resistance. The clinical manifestations, routine laboratory and radiographic analyses of abdominal tuberculosis are nonspecific and surgery plays a fundamental role because 25-75% of such patients are operated. METHODS: Six patients, 4 male and 2 female (age 23-62 years) underwent laparotomy or laparoscopy. Five patients were not European, 1 was Italian. The surgical indications were: intestinal occlusion in 3 patients; perforation in 1 patient; peritonitis in 2 patients. RESULTS: The most frequent clinical manifestations were pyrexia, weight loss, anemia, ascites. Chest X-ray was normal in all patients. All patients were found ARB-negative in sputum and in ascitic fluid, while 1 was positive to culture of sputum and 3 of ascitic fluid. In all patients histopathologic examination showed typical findings of tuberculosis. CONCLUSIONS: The surgical indication is made for diagnostic aim or due to the presence of complications. Laparoscopy is the gold standard in the diagnosis,since it allows whole exploration of abdomen and taking of sample for biopsy and ascitic fluid to find micobacterium. In fact, abdominal tuberculosis is a paucibacillar disease and rarely it is possible to demonstrate the direct presence of M. Tuberculosis, but nowadays the methods of the genome amplification allow to demonstrate the sequence of the chromosomial DNA of M. Tuberculosis from small fragments of bioptic material.


Asunto(s)
Peritonitis Tuberculosa/diagnóstico , Peritonitis Tuberculosa/cirugía , Tuberculosis Gastrointestinal/diagnóstico , Tuberculosis Gastrointestinal/cirugía , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad
18.
Phytother Res ; 21(4): 386-90, 2007 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-17236173

RESUMEN

Bioguided fractionation of the roots of Citrus sinensis (Rutaceae) led to the isolation and identification of five coumarins, namely, clausarin, suberosin, poncitrin, xanthyletin and thamnosmonin, seven acridones, namely, acrimarine B, 2-methoxycitpressine I, citpressine I, buntanine, acrimarine E, honyumine and acrimarine C, and one terpenoid, namely, limonin. Among these compounds, clausarin, 2-methoxycitpressine I and acrimarine E inhibited P-glycoprotein-mediated drug efflux in K562/R7 human leukemic cells over-expressing P-glycoprotein.


Asunto(s)
Miembro 1 de la Subfamilia B de Casetes de Unión a ATP/antagonistas & inhibidores , Acridinas/aislamiento & purificación , Acridinas/farmacología , Citrus sinensis/química , Cumarinas/aislamiento & purificación , Cumarinas/farmacología , Acridonas , Línea Celular Tumoral , Humanos , Estructura Molecular , Raíces de Plantas/química
19.
Clin Microbiol Infect ; 13(1): 100-3, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17184297

RESUMEN

Meningococcal invasive disease is a life-threatening infection that affects mostly children and adolescents. The present study was performed during 2003-2005 to compare the phenotypic characteristics of meningococcal isolates from these two main groups at risk with those of isolates from other age groups to assess whether strategies for treatment and prevention implemented elsewhere can also be applied in Italy. The results showed that serogroup C meningococci were predominant, and that a dramatic increase in the circulation of strains with decreased susceptibility to penicillin was associated mainly with a prevalent phenotype C:2b:P1.5,2, which belongs to the hyper-virulent ST8/A4 cluster.


Asunto(s)
Meningitis Meningocócica/prevención & control , Neisseria meningitidis Serogrupo C/clasificación , Neisseria meningitidis Serogrupo C/efectos de los fármacos , Penicilinas/farmacología , Adolescente , Adulto , Preescolar , Humanos , Italia/epidemiología , Pruebas de Sensibilidad Microbiana , Vigilancia de Guardia , Serotipificación
20.
Eur J Clin Microbiol Infect Dis ; 22(9): 566-8, 2003 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-12938005

RESUMEN

Reported here is a predominant clone of Neisseria meningitidis B:14:P1.13 that persisted over a 6-year period in the northernmost province of Italy, where it was responsible for a higher incidence of meningococcal disease compared to the rest of the country. Genetic relatedness of isolates was confirmed by multilocus sequence typing, pulsed-field gel electrophoresis and PorA variable region typing. All strains examined belonged to the ST44 complex/lineage III. Risk factors for infection were evaluated through a case-control study conducted with 21 cases and 63 age- and sex-matched controls. Risk factors for infection in the seven patients younger than 13 years were (i) residence in a rural area, (ii) exposure to passive smoke, and (iii) living in a home with rooms rented to tourists (all odds ratios infinite). The only risk factor for the older patients was previous influenza-like illness (odds ratio, 41.9; 95% confidence interval, 1.6-1068.9). Guidelines for the early treatment of patients and public information campaigns were successfully implemented to reduce disease transmission and the case fatality rate in the region.


Asunto(s)
Infecciones Meningocócicas/epidemiología , Infecciones Meningocócicas/genética , Neisseria meningitidis/genética , Neisseria meningitidis/aislamiento & purificación , Fenotipo , Adolescente , Adulto , Distribución por Edad , Anciano , Análisis de Varianza , Estudios de Casos y Controles , Niño , Preescolar , Electroforesis en Gel de Campo Pulsado , Femenino , Humanos , Incidencia , Lactante , Italia/epidemiología , Masculino , Infecciones Meningocócicas/diagnóstico , Persona de Mediana Edad , Oportunidad Relativa , Probabilidad , Medición de Riesgo , Distribución por Sexo , Factores de Tiempo
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