Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 42
Filtrar
2.
Urologe A ; 60(3): 306-317, 2021 Mar.
Artículo en Alemán | MEDLINE | ID: mdl-33559012

RESUMEN

The coronavirus has challenged all medical systems worldwide. Herein both waves of COVID-19 (coronavirus disease 2019) in spring and autumn 2020 differ principally. Whereas Europe was hit by the first wave more or less unprepared, which was aggravated by the high virulence of COVID-19, the second wave is characterized by a much higher contagiosity of the virus with very high incidences. On the other hand the virus has attenuated, which is reflected by the significantly lower incidence-related mortality rate. However, the overall increasing number of infected patients represents again a great challenge for the medical management of the disease. France and Spain are doing better in comparison to Germany and Italy this time. The absolute number of deaths per week is higher than during the peak of the first wave. However, urologists in these countries have also experienced greater restrictions in their activities in the second shutdown than in Germany, where there is only a reduction of beds to between 75 and 90%. Mostly all levels are operated. Of importance for Germany, however, is the plateau on a high level for several weeks probably due to the reduced efficacy of a light lock-down. This finally resulted in a total lock-down in mid-December 2020. Subsequently in Germany some hospitals are also reaching their limits with similar consequences for the departments of urology facing a 50% reduction of beds and operating only level III and IV indications. Nevertheless, the management of urologic patients during the COVID-19 pandemic is carried out in Europa on a high standard. Therefor the risk of secondary harm to our patients is expected to be rather minimal in the long run.


Asunto(s)
COVID-19 , Urología , Control de Enfermedades Transmisibles , Europa (Continente) , Francia , Alemania/epidemiología , Humanos , Italia , Pandemias , SARS-CoV-2
3.
Public Health ; 175: 145-147, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31494335

RESUMEN

OBJECTIVES: Aspergillus spp could be responsible of nosocomial aspergillosis in immunocompromised patients. In 2018, it was decided to demolish a building of Careggi Hospital (Florence, Italy), the Chief Medical Officer ordered a 9-months-long air and surface microbiological sampling and extraordinary preventive measures. STUDY DESIGN: A 9-months-long prospective study. METHODS: After mapping the at-risk areas, air and surface samples were collected in different locations: in corridors, in rooms (high efficiency particulate air filter (HEPA) filtered or not), and outdoors. The samples were collected during the critical phases of the demolition. Air temperature and weather conditions were determined and recorded at the beginning of each sampling. RESULTS: Seventy-eight air samples and 72 surface samples were collected. The results showed highest contamination at time zero (before extraordinary preventive measures) and in the wards without HEPA filtered air. No specific prophylaxis strategy was implemented at our hospital for immunocompromised patients, and no cases of aspergillosis were recorded. CONCLUSIONS: Our results showed that extraordinary protective measures, the use of air treatment systems, and a continuous monitoring could be associated with decreased Aspergillus air contamination during construction, renovation, or demolition works.


Asunto(s)
Microbiología del Aire , Aspergilosis/prevención & control , Aspergillus/aislamiento & purificación , Infección Hospitalaria/prevención & control , Arquitectura y Construcción de Hospitales , Aspergilosis/epidemiología , Infección Hospitalaria/epidemiología , Humanos , Italia/epidemiología , Estudios Prospectivos
4.
Orphanet J Rare Dis ; 11(1): 132, 2016 Sep 29.
Artículo en Inglés | MEDLINE | ID: mdl-27682832

RESUMEN

BACKGROUND: Rett Syndrome is a neurodevelopmental disorder almost exclusively affecting females, characterized by a broad clinical spectrum of signs and symptoms and a peculiar course. The disease affects different body systems: nervous, muscolo-skeletal, gastro-enteric. Moreover, part of the symptoms are related to the involvement of the autonomic nervous system. In the Tuscany Rett Center at Versilia Hospital, we collected data from 151 subjects with a clinical diagnosis of classical or variant RTT syndrome. For each subject, we assessed the severity of the condition with clinical-rating scales (ISS, PBZ), we quantified the performance of the autonomic nervous system, and we performed genetic analysis. We used multivariate statistical analysis of the data to evaluate the relation between the different clinical RTT forms, the cardiorespiratory phenotype, the different genetic mutations and the severity of the clinical picture. Individuals were classified according to existing forms: Classical RTT and three atypical RTT: Z-RTT, Hanefeld, Congenital. A correlation between C-Terminal deletions and lower severity of the clinical manifestations was evident, in the previous literature, but, considering the analysis of autonomic behaviour, the original classification can be enriched with a more accurate subdivision of Rett subgroups, which may be useful for early diagnosis. RESULTS: Present data emphasize some differences, not entirely described in the literature, among RTT variants. In our cohort the Z-RTT variant cases show clinical features (communication, growth, epilepsy and development), well documented by specific ISS items, less severe, if compared to classical RTT and show autonomic disorders, previously not reported in the literature. In this form epilepsy is rarely present. In contrast, Hanefeld variant shows the constant presence of epilepsy which has an earlier onset In Hanefeld variant the frequency of apneas was rare and, among the cardiorespiratory phenotypes, the feeble type is lacking. CONCLUSION: A quantitative analysis of the different autonomic components reveals differences across typical and atypical forms of RTT that leads to a more accurate classification of the groups. In our cohort of RTT individuals, the inclusion of autonomic parameter in the classification leads to an improved diagnosis at earlier stages of development.

5.
Transplant Proc ; 46(7): 2391-5, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25242793

RESUMEN

We present our first minilaparoscopic-assisted laparoendoscopic single-site bilateral nephrectomies (b-LESS-N) performed in a patient with bilateral atrophic kidney, right malignant renal tumor of 4.5 cm that developed in a native kidney after multiple bilateral renal transplantations and renovascular hypertension. The mean operative time was 233 minutes, with a mean blood loss of 180 mL. A single umbilical incision (5.5 cm) was performed to remove both kidneys. No significant difference in glomerular filtration rate was observed postoperatively. The postoperative recovery was uneventful with favorable short-term outcomes and high patient satisfaction. The 10-month follow-up showed effective arterial pressure improvement, absence of tumor relapse, and stable graft function. We believe that b-LESS-N for renal cancer after a renal transplantation can be performed without increased risks for the patients or for the transplanted kidney.


Asunto(s)
Trasplante de Riñón , Laparoscopía/métodos , Nefrectomía/métodos , Complicaciones Posoperatorias/cirugía , Femenino , Humanos , Hipertensión Renovascular/cirugía , Neoplasias Renales/cirugía , Masculino , Persona de Mediana Edad , Reoperación , Receptores de Trasplantes
6.
G Ital Dermatol Venereol ; 148(6): 609-19, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24442041

RESUMEN

Although Malassezia yeasts are a part of the normal microflora, under certain conditions they can cause superficial skin infection, such as pityriasis versicolor (PV) and Malassezia folliculitis. Moreover the yeasts of the genus Malassezia have been associated with seborrheic dermatitis and dandruff, atopic dermatitis, psoriasis, and, less commonly, with confluent and reticulated papillomatosis, onychomycosis, and transient acantholytic dermatosis. The study of the clinical role of Malassezia species has been surrounded by controversy due to the relative difficulty in isolation, cultivation, and identification. This review focuses on the clinical, mycologic, and immunologic aspects of the various skin diseases associated with Malassezia. Moreover, since there exists little information about the epidemiology and ecology of Malassezia species in the Italian population and the clinical significance of these species is not fully distinguished, we will report data about a study we carried out. The aim of our study was the isolation and the identification of Malassezia species in PV-affected skin and non-affected skin in patients with PV and in clinically healthy individuals without any Malassezia associated skin disease.


Asunto(s)
Dermatomicosis/diagnóstico , Malassezia/aislamiento & purificación , Adolescente , Adulto , Estudios de Casos y Controles , Dermatomicosis/complicaciones , Diagnóstico Diferencial , Femenino , Humanos , Malassezia/clasificación , Malassezia/patogenicidad , Masculino , Persona de Mediana Edad , Factores de Riesgo
7.
Brain Dev ; 31(3): 208-16, 2009 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18562141

RESUMEN

The preserved speech variant is the milder form of Rett syndrome: affected girls show the same stages of this condition and by the second half of the first decade are making slow progress in manual and verbal abilities. They walk without help, and may be able to make simple drawings and write a few words. Most of them can speak in sentences. Autistic behavior can often be observed. We previously described several cases in the pre-molecular era and subsequently reported a survey of 12 cases with MECP2 mutations. Seventeen new patients with the preserved speech variant and a proven MECP2 mutation have been clinically evaluated. Additional clinical data of our previously described cases are reported. These 29 preserved speech variant cases were compared with 129 classic Rett patients using a clinical severity score system including 22 different signs. There was both statistical and clinical evidence of the existence of this variant. On the basis of their abilities these girls can be distinguished as low-, intermediate- and high-functioning. Girls of the last two groups show a greater homogeneity: they speak in sentences, use their hands more easily, have normal somatic features, mild neurovegetative abnormalities, with autistic behavior in 76%, epilepsy in 30%, while girls of the first group are closer to classic Rett syndrome. The majority of patients carries either missense mutations (especially the p.R133C change) or late truncating mutations in the MECP2 gene. These results confirm the existence of this variant of Rett syndrome (Zappella variant), a clear example of progress of manual and verbal abilities, and not of a "preserved speech" and suggest corresponding diagnostic criteria.


Asunto(s)
Síndrome de Rett/diagnóstico , Trastornos del Habla/diagnóstico , Adolescente , Adulto , Niño , Preescolar , Análisis Discriminante , Femenino , Humanos , Proteína 2 de Unión a Metil-CpG/genética , Mutación , Fenotipo , Síndrome de Rett/clasificación , Síndrome de Rett/genética , Índice de Severidad de la Enfermedad , Trastornos del Habla/genética , Adulto Joven
8.
Mycoses ; 48(3): 211-5, 2005 May.
Artículo en Inglés | MEDLINE | ID: mdl-15842340

RESUMEN

The incidence of Candida dubliniensis in oropharyngeal swabs of 132 human immunodeficiency virus (HIV)-positive and 89 HIV-negative patients was determined. The samples were plated onto CHROMagar Candida medium and 82 strains, presumptively identified as C. albicans or C. dubliniensis, were further investigated (temperature test, chlamydoconidia production, specific primer PCR). In addition, 487 collection strains (isolated from clinical samples and previously identified as C. albicans on the basis of a positive germ tube test) were screened in order to identify C. dubliniensis isolates. Two C. dubliniensis strains were isolated from two HIV-positive patients without oral candidiasis. Candida dubliniensis was not isolated from 89 HIV-negative patients nor was it identified among the collection strains.


Asunto(s)
Candida/aislamiento & purificación , Candidiasis/microbiología , Infecciones por VIH/complicaciones , Infecciones por VIH/microbiología , Orofaringe/microbiología , Infecciones del Sistema Respiratorio/microbiología , Adolescente , Adulto , Anciano , Candida/clasificación , Candidiasis/complicaciones , Candidiasis/epidemiología , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Infecciones del Sistema Respiratorio/complicaciones , Infecciones del Sistema Respiratorio/epidemiología
9.
Mycoses ; 48(1): 3-7, 2005 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-15679657

RESUMEN

Authors compare two methods of extracting DNA from different fungi: the classic method with phenol/chloroform (P/C) and that with magnetic beads. Both were tested on Candida albicans and Cryptococcus neoformans var. neoformans, belonging to the yeast group and Microsporum canis, M. gypseum, Trichophyton rubrum, T. interdigitale, T. ajelloi, Epidermophyton floccosum, belonging to the dermatophytes group. Extraction products underwent polymerase chain reaction (PCR) fingerprinting with the appropriate primers to point out any disagreement in the genomic profiles. After having determined that the genomic profiles obtained from the DNA extracted from the same strain with the two methods correspond perfectly, the authors concluded that the extraction method with magnetic beads from fungal cells is simpler and quicker than with P/C extraction, greatly facilitating the obtainment of fungal DNA.


Asunto(s)
Arthrodermataceae/genética , Candida albicans/genética , Cryptococcus neoformans/genética , ADN de Hongos/aislamiento & purificación , Magnetismo , Arthrodermataceae/clasificación , Candida albicans/clasificación , Cloroformo , Cryptococcus neoformans/clasificación , ADN de Hongos/análisis , Humanos , Técnicas de Tipificación Micológica , Fenol , Reacción en Cadena de la Polimerasa/métodos , Poliestirenos
10.
Mycoses ; 47(9-10): 397-401, 2004 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15504123

RESUMEN

A recently developed microdilution method (Sensititre) YeastOne) may represent a valid alternative to the National Committee for Clinical Laboratory Standards (NCCLS) method for routine testing. The Medical Mycology Committee of the Associazione Microbiologi Clinici Italiani (AMCLI) decided to evaluate its reproducibility and reliability compared with the NCCLS M27A protocol and the E-test. Nineteen strains each of Candida albicans and Ca. parapsilosis, isolated from systemic infections, were tested against amphotericin B, flucytosine, ketoconazole, itraconazole, and fluconazole. All the participating laboratories tested the YeastOne panels, while the E-test and the NCCLS method were performed by two laboratories each. Interlaboratory reproducibility showed a good correlation (from 95% for amphotericin B to 92.5% for flucytosine). The agreement between NCCLS and YeastOne ranged from 95 (ketoconazole and itraconazole) to 100% (amphotericin B and flucytosine), whereas the agreement between E-test and YeastOne ranged from 72.5 (fluconazole) to 100% (amphotericin B and flucytosine). The Sensititre YeastOne panels appear to be an excellent alternative to both the E-test and the NCCLS protocol for antifungal susceptibility testing.


Asunto(s)
Antifúngicos/farmacología , Candida/efectos de los fármacos , Laboratorios/normas , Pruebas de Sensibilidad Microbiana/normas , Anfotericina B/farmacología , Candida/crecimiento & desarrollo , Candida/aislamiento & purificación , Colorimetría/métodos , Colorimetría/normas , Itraconazol/farmacología , Cetoconazol/farmacología , Pruebas de Sensibilidad Microbiana/métodos , Garantía de la Calidad de Atención de Salud , Estándares de Referencia
11.
Eur J Epidemiol ; 18(4): 357-62, 2003.
Artículo en Inglés | MEDLINE | ID: mdl-12803377

RESUMEN

The authors present a worldwide review of isolations of Cryptococcus neoformans, var. neoformans and C. neoformans var. gattii from animals and vegetation, referring in particular to the already well-known association of the former variety with Eucalyptus camaldulensis. They then review the Italian situation relative to this association and their studies carried out in Central Italy: in Latina (Lazio), Pisa, Viareggio and Lake Massaciuccoli (Tuscany). From the 256 E. camaldulensis trees examined C. neoformans var. gattii was not isolated. An E. camaldulensis tree situated in the nature reserve on Lake Massaciuccoli proved to be positive for C. neoformans var. neoformans. This variety was isolated from the leaves, flowers, bark and the debris at the foot of the tree, suggesting that it had colonized the entire tree and that it was capable of developing not only on its usual habitat (bird guano, soil rich with guano) but also on Eucalyptus trees. The identity of the isolates was confirmed by their genomic profiles obtained by random amplification polymorphic DNA (RAPD) with the primer (GACA)4. The presence of a single genotype indicates a sole source of contamination, perhaps brought by a bird coming from a contaminated environment.


Asunto(s)
Criptococosis/epidemiología , Cryptococcus neoformans/aislamiento & purificación , Eucalyptus/microbiología , Cryptococcus neoformans/genética , Italia/epidemiología , Técnica del ADN Polimorfo Amplificado Aleatorio
12.
Mycoses ; 46(1-2): 64-6, 2003 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-12588487

RESUMEN

A case of tinea capitis due to Trichophyton soudanense observed in a 4-year-old African girl is described. The infection manifested with diffuse pustular lesions of the scalp. Diagnosis was based on culture. Genome study by single primer PCR fingerprinting was also performed. A younger sister, aged 10 months, was the healthy carrier of the mycete.


Asunto(s)
Tiña del Cuero Cabelludo/microbiología , Trichophyton/aislamiento & purificación , Preescolar , Femenino , Humanos , Cuero Cabelludo/microbiología , Cuero Cabelludo/patología , Tiña del Cuero Cabelludo/tratamiento farmacológico , Trichophyton/efectos de los fármacos , Trichophyton/genética
13.
Ann Ital Chir ; 73(3): 287-96; discussion 297, 2002.
Artículo en Italiano | MEDLINE | ID: mdl-12404896

RESUMEN

PURPOSE: Restorative proctocolectomy is the procedure of choice in the treatment of ulcerative colitis. The operation is successful in removing all diseased mucosa while preserving a normal bowel function and a good quality of life for the patient. In this article are presented the clinical and functional results obtained in 28 patients, 19 males (68%) and 9 females (32%) after stapled restorative proctocolectomy with ileal J pouch-anal anastomosis. RESULTS: There were no perioperative deaths. The overall morbidity rate was 31%. Six patients (21%) presented pelvic abscess; 2 (7%) pelvic hematoma, 4 patients (14%) ileo-anal anastomotic stricture, 1 patient (3.6%) pouch-vagina fistula, three patients (11%) intestinal obstruction and 7 (25%) pouchitis. All patients were able to evacuate their pouches spontaneously. The mean bowel movements were 6-9/24 hours at the first postoperative month and 3-5/24 hours at the sixth month. Infrequent nocturnal seepage occurred in 6 patients (21%). Stool consistency returned to normal within 3-6 months. The mean pouch capacity was 210 cc. The mean resting pressure was diminished in 11 patients (39%), the men and maximal squeeze pressures were improved in 9 (32%); the ileo-rectal-anal inhibitory reflex was normal in 5 patients (18%), not defined in 12 (43%). Impotence or impaired bladder function was not present. CONCLUSION: The use of staplers in the surgical technique of restorative proctocolectomy with J shaped ileo-anal pouch is associated with low morbidity and better long-term results. The procedure requires a good selection of patients, a correct surgical timing, a very carefully technique and a low pre and postoperative treatment with steroids.


Asunto(s)
Colitis Ulcerosa/cirugía , Reservorios Cólicos/fisiología , Proctocolectomía Restauradora , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad
14.
Ann Ital Chir ; 73(2): 219-29, 2002.
Artículo en Italiano | MEDLINE | ID: mdl-12197296

RESUMEN

Visceral artery aneurysms are uncommon and usually result from atherosclerosis, periarteritis nodosa and fibromuscular dysplasia. Hepatic artery aneurysms were detected in two patient, splenic artery aneurysms in three. In four patients rupture occurred. In the two patients with hepatic artery aneurysm hemobilia from arterial rupture into the common bile duct and intraperitoneal bleeding in lesser sac was assessed. Ruptured aneurysms of the splenic artery with free intraperitoneal bleeding occurred in two patients, one patient had an asymptomatic splenic artery aneurysm. In four patients the diagnosis was made by contrast-TC and/or celiac and mesenteric angiography. In four patients excision of the aneurysm was successfully performed. One patient with ruptured hepatic artery aneurysm and in which resection and revascularization was made died.


Asunto(s)
Aneurisma Roto , Aneurisma , Arteria Hepática , Arteria Esplénica , Adulto , Factores de Edad , Aneurisma/diagnóstico , Aneurisma/diagnóstico por imagen , Aneurisma/epidemiología , Aneurisma/cirugía , Aneurisma Roto/diagnóstico , Aneurisma Roto/diagnóstico por imagen , Aneurisma Roto/cirugía , Angiografía , Prótesis Vascular , Urgencias Médicas , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Tereftalatos Polietilenos , Rotura Espontánea , Factores Sexuales , Factores de Tiempo , Tomografía Computarizada por Rayos X , Ultrasonografía Doppler en Color
15.
Brain Dev ; 23 Suppl 1: S246-50, 2001 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-11738884

RESUMEN

Rett syndrome (RTT) is an X-linked dominant neurological disorder, which appears to be the most common genetic cause of profound combined intellectual and physical disability in Caucasian females. This syndrome has been associated with mutations of the MECP2 gene, a transcriptional repressor of unknown target genes. We report a detailed mutational analysis of a large cohort of RTT patients from the UK and Italy. This study has permitted us to produce a hot spot map of the mutations identified. Bioinformatic analysis of the mutations, taking advantage of structural and evolutionary data, leads us to postulate the existence of a new functional domain in the MeCP2 protein, conserved among brain-specific regulatory factors.


Asunto(s)
Proteínas Cromosómicas no Histona , Mapeo Cromosómico , Biología Computacional , Análisis Mutacional de ADN , Proteínas de Unión al ADN/genética , Mutación/genética , Proteínas Represoras , Síndrome de Rett/genética , Adolescente , Adulto , Secuencia de Aminoácidos/genética , Secuencia de Bases/genética , Niño , Preescolar , Proteínas de Unión al ADN/metabolismo , Femenino , Factores de Transcripción Forkhead , Humanos , Lactante , Recién Nacido , Italia , Proteína 2 de Unión a Metil-CpG , Datos de Secuencia Molecular , Proteínas Nucleares/genética , Estructura Terciaria de Proteína/genética , Factores de Transcripción/genética , Reino Unido
16.
Med Mycol ; 39(4): 379-81, 2001 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-11556769

RESUMEN

Tracheoesophageal voice prostheses in laryngectomized patients commonly deteriorate due to the presence of yeasts, particularly Candida species. We describe the first case of colonization of such a device by Cryptococcus neoformans in a patient with a history of glottic carcinoma. The isolate showed an identical genomic pattern with C. neoformans from pigeon excreta in the patient's environment.


Asunto(s)
Cryptococcus neoformans/crecimiento & desarrollo , Laringe Artificial/microbiología , Animales , Carcinoma , Columbidae/microbiología , Cryptococcus neoformans/clasificación , Cryptococcus neoformans/aislamiento & purificación , Heces/microbiología , Glotis , Humanos , Neoplasias Laríngeas/rehabilitación , Neoplasias Laríngeas/cirugía , Laringectomía , Masculino
17.
J Clin Microbiol ; 39(9): 3382-5, 2001 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-11526185

RESUMEN

This report describes the application of PCR fingerprinting for the identification of species and varieties of common dermatophytes and related fungi utilizing as a single primer the simple repetitive oligonucleotide (GACA)(4). The primer was able to amplify all the strains, producing species-specific profiles for Microsporum canis, Microsporum gypseum, Trichophyton rubrum, Trichophyton ajelloi, and Epidermophyton floccosum. Intraspecific variability was not observed for these species. Instead, three different profiles were observed in the Trichophyton mentagrophytes group.


Asunto(s)
Arthrodermataceae/clasificación , Dermatomicosis/microbiología , Epidermophyton/clasificación , Microsporum/clasificación , Reacción en Cadena de la Polimerasa/métodos , Trichophyton/clasificación , Animales , Arthrodermataceae/genética , Gatos , Cartilla de ADN , ADN de Hongos/análisis , ADN de Hongos/aislamiento & purificación , Perros , Epidermophyton/genética , Humanos , Microsporum/genética , Trichophyton/genética
19.
J Mol Med (Berl) ; 78(11): 648-55, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11269512

RESUMEN

Rett syndrome is an X-linked dominant neurological disorder, which appears to be the commonest genetic cause of profound combined intellectual and physical disability in Caucasian females. Recently, this syndrome has been associated with mutations of the MECP2 gene, a transcriptional repressor of still unknown target genes. Here we report a detailed mutational analysis of 62 patients from UK and Italian archives, representing the first comparative study among different populations and one of the largest number of cases so far analyzed. We review the literature on MECP2 mutations in Rett syndrome. This analysis has permitted us to produce a map of the recurrent mutations identified in this and previous studies. Bioinformatic analysis of the mutations, taking advantage of structural and evolutionary data, leads us to postulate the existence of a new functional domain in the MeCP2 protein, which is conserved among brain-specific regulatory factors.


Asunto(s)
Proteínas Cromosómicas no Histona , Proteínas de Unión al ADN/genética , Proteínas Represoras , Síndrome de Rett/etnología , Síndrome de Rett/genética , Adolescente , Adulto , Secuencia de Aminoácidos , Secuencia de Bases , Preescolar , Secuencia Conservada , Análisis Mutacional de ADN , Proteínas de Unión al ADN/química , Evolución Molecular , Exones , Femenino , Mutación del Sistema de Lectura , Heterocigoto , Humanos , Lactante , Intrones , Italia , Proteína 2 de Unión a Metil-CpG , Modelos Genéticos , Datos de Secuencia Molecular , Mutación , Mutación Missense , Linaje , Polimorfismo Conformacional Retorcido-Simple , Estructura Terciaria de Proteína , Homología de Secuencia de Aminoácido , Reino Unido
20.
Aging (Milano) ; 12(2): 77-84, 2000 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-10902049

RESUMEN

Gender accounts for important differences in the incidence and prevalence of a variety of age-related diseases. Considering people of far advanced age, demographic data document a clear-cut prevalence of females compared to males, suggesting that sex-specific mortality rates follow different trajectories during aging. In the present investigation, we report data from a nationwide study on Italian centenarians (a total of 1162 subjects), and from two studies on centenarians living in two distinct zones of Italy, i.e., the island of Sardinia (a total of 222 subjects) and the Mantova province (Northern Italy) (a total of 43 subjects). The female/male ratio was about 2:1 in Sardinia, 4:1 in the whole of Italy, and about 7:1 in the Mantova province. Thus, a complex interaction of environmental, historical and genetic factors, differently characterizing the various parts of Italy, likely plays an important role in determining the gender-specific probability of achieving longevity. Gender differences in the health status of centenarians are also reported, and an innovative score method to classify long-lived people in different health categories, according to clinical and functional parameters, is proposed. Our data indicate that not only is this selected group of people, as a whole, highly heterogeneous, but also that a marked gender difference exists, since male centenarians are less heterogeneous and more healthy than female centenarians. Immunological factors regarding the age-related increase in pro-inflammatory status, and the frequency of HLA ancestral haplotypes also show gender differences that likely contribute to the different strategies that men and women seem to follow to achieve longevity. Concerning the different impact of genetic factors on the probability of reaching the extreme limits of the human life-span, emerging evidence (regarding mtDNA haplogroups, Thyrosine Hydroxilase, and IL-6 genes) suggests that female longevity is less dependent on genetics than male longevity, and that female centenarians likely exploited a healthier life-style and more favorable environmental conditions, owing to gender-specific cultural and anthropological characteristics of the Italian society in the last 100 years.


Asunto(s)
Longevidad , Caracteres Sexuales , Anciano , Anciano de 80 o más Años , Femenino , Estado de Salud , Humanos , Sistema Inmunológico/fisiología , Longevidad/genética , Masculino , Estrés Fisiológico/fisiopatología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...