Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 261
Filtrar
1.
J Neonatal Perinatal Med ; 15(2): 297-302, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34806622

RESUMEN

BACKGROUND: There are three different approaches set forth by the Committee on the Fetus and Newborn (COFN) for managing asymptomatic neonates born to mothers with inadequate intrapartum antibiotic prophylaxis (IAP) for early-onset Group B Strep (GBS) infection. The first approach is that of categorical risk factor assessments, and recommends that asymptomatic infants born to afebrile mothers with inadequate IAP for GBS be monitored with clinical observation for 36-48 hours. The second approach recommends serial physical examinations and vital signs for 36-48 hours to closely monitor changes in clinical condition for all patients. The Kaiser Permanente EOS risk calculator (SRC) is an example of the third approach, a multivariate risk assessment, and it takes into consideration several perinatal risk factors. This multivariate risk assessment then provides recommendations for reassessment and management based on presume risk of the infant developing or having Early Onset Sepsis (EOS). The aim of our study was to compare these three recently published recommendations from the COFN for the management of asymptomatic neonates born to afebrile mothers with inadequate IAP for GBS. STUDY DESIGN: This is a retrospective study of asymptomatic neonates with gestational age ≥35 weeks born to afebrile mothers with indicated inadequate IAP for GBS between April 2017 and July 2020. Management recommendations of the SRC were compared to the recommendations of categorical risk assessment and risk assessment based on clinical condition. RESULTS: A total of 7,396 infants were born during the study period, 394 (5.3%. to mothers with inadequate IAP. Recommendations for these infants according to both the categorical risk factor guideline and the clinical condition guideline include extended, close observation. However, the SRC recommended routine newborn care for 99.7%.f these infants. None of the infants developed EOS. CONCLUSION: The SRC recommend routine neonatal care without enhanced and prolonged observation for nearly all asymptomatic infants born to afebrile mothers with inadequate IAP. As none of the infants in this cohort had EOS, further studies in a larger cohort are needed to establish the safety of SRC in neonates born to mothers with inadequate IAP.


Asunto(s)
Sepsis , Infecciones Estreptocócicas , Antibacterianos/uso terapéutico , Profilaxis Antibiótica , Femenino , Feto , Humanos , Lactante , Recién Nacido , Madres , Embarazo , Estudios Retrospectivos , Infecciones Estreptocócicas/tratamiento farmacológico , Infecciones Estreptocócicas/prevención & control , Streptococcus agalactiae
2.
Oral Dis ; 22 Suppl 1: 120-7, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27109280

RESUMEN

Well into the fourth decade of the HIV/AIDS pandemic, we can look back on the early years, the initial discoveries, and the broad sweep of the progress of our understanding of the nature, causes, and significance of the oral lesions seen in those infected with the virus. Prominent among these is oral hairy leukoplakia (HL), a previously unknown lesion of the mouth associated with Epstein-Barr virus (EBV) and initially seen only in people with AIDS, in the then-recognized risk groups, or those shown to be HIV positive. Subsequently, it became clear that the distribution of HL extends well beyond the HIV spectrum. In this brief review, we consider the clinical and histological features of HL, discuss how it was discovered, explore its cause, diagnosis, relationship with AIDS, pathogenesis, significance in EBV biology, options for management, and how it changes with HIV/AIDS therapy.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/inmunología , Infecciones Oportunistas Relacionadas con el SIDA/patología , Herpesvirus Humano 4 , Leucoplasia Vellosa/inmunología , Leucoplasia Vellosa/patología , Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Infecciones Oportunistas Relacionadas con el SIDA/virología , Humanos , Huésped Inmunocomprometido , Leucoplasia Vellosa/diagnóstico , Leucoplasia Vellosa/virología
3.
Oral Dis ; 22 Suppl 1: 128-34, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27109281

RESUMEN

The Oral HIV/AIDS Research Alliance (OHARA) was established in 2006 to provide the capacity to investigate the oral complications associated with HIV/AIDS within the ACTG infrastructure. Its goals were to explore the effects of potent antiretroviral therapy (ART) on the development of opportunistic infections, and variation and resistance of opportunistic pathogens in the context of immune suppression and long-term ART. The objectives of this talk, presented as part of a plenary session at the 7th World Workshop on Oral Health and Disease in AIDS, were to (i) provide an overview of OHARA's most recent research agenda, and how it evolved since OHARA's inception; (ii) describe OHARA's main accomplishments, including examples of research protocols completed and their key findings; and (iii) describe spin-off projects derived from OHARA, lessons learned, and future directions. OHARA has met its central goal and made key contributions to the field in several ways: (i) by developing/updating diagnostic criteria for oral disease endpoints commonly measured in OHARA protocols and in HIV/AIDS research in general and has creating standardized training modules, both for measuring these oral disease endpoints across clinical specialties, and for collecting oral fluid specimens; (ii) by implementing a total of nine protocols, six of which are completed. Three protocols involved domestic research sites, while three involved international research sites (in Africa, India, and South America); (iii) and by developing and validating a number of laboratory assays used in its protocols and in the field of oral HIV/AIDS research.


Asunto(s)
Investigación Biomédica , Candidiasis Bucal/inmunología , Infecciones por VIH/complicaciones , Infecciones por VIH/inmunología , Infecciones por Papillomavirus/inmunología , Sarcoma de Kaposi/virología , Antirretrovirales/uso terapéutico , Candidiasis Bucal/virología , Infecciones por VIH/tratamiento farmacológico , Humanos , Infecciones por Papillomavirus/virología
4.
Oral Dis ; 22(7): 609-19, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26704694

RESUMEN

OBJECTIVES: This study presents the global burden of major oral diseases with an exegetical commentary on their current profiles, the critical issues in oral healthcare and future perspectives. METHODS: A narrative overview of current literature was undertaken to synthesise the contexts with critical elaboration and commentary. RESULTS: Oral disease is one of the most common public health issues worldwide with significant socio-economic impacts, and yet it is frequently neglected in public health policy. The oral data extracted from the Global Burden of Disease Study in 2010 (Murray et al, 2012) show that caries, periodontal disease, edentulism, oral cancer and cleft lip/palate collectively accounted for 18 814 000 disability-adjusted life-years; and the global burden of periodontal disease, oral cancer and caries increased markedly by an average of 45.6% from 1990 to 2010 in parallel with the major non-communicable diseases like diabetes by 69.0%. Oral diseases and non-communicable diseases are closely interlinked through sharing common risk factors (e.g. excess sugar consumption and tobacco use) and underlying infection/inflammatory pathways. CONCLUSIONS: Oral disease remains a major public health burden worldwide. It is of great importance to integrate oral health into global health agenda via the common risk factor approach. The long-term sustainable strategy for global oral health should focus on health promotion and disease prevention through effective multidisciplinary teamwork.


Asunto(s)
Enfermedades de la Boca , Costo de Enfermedad , Humanos , Factores Socioeconómicos
6.
Arthritis Care Res (Hoboken) ; 64(4): 475-87, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22563590

RESUMEN

OBJECTIVE: We propose new classification criteria for Sjögren's syndrome (SS), which are needed considering the emergence of biologic agents as potential treatments and their associated comorbidity. These criteria target individuals with signs/symptoms suggestive of SS. METHODS: Criteria are based on expert opinion elicited using the nominal group technique and analyses of data from the Sjögren's International Collaborative Clinical Alliance. Preliminary criteria validation included comparisons with classifications based on the American­European Consensus Group (AECG) criteria, a model-based "gold standard"obtained from latent class analysis (LCA) of data from a range of diagnostic tests, and a comparison with cases and controls collected from sources external to the population used for criteria development. RESULTS: Validation results indicate high levels of sensitivity and specificity for the criteria. Case definition requires at least 2 of the following 3: 1) positive serum anti-SSA and/or anti-SSB or (positive rheumatoid factor and antinuclear antibody titer >1:320), 2) ocular staining score >3, or 3) presence of focal lymphocytic sialadenitis with a focus score >1 focus/4 mm2 in labial salivary gland biopsy samples. Observed agreement with the AECG criteria is high when these are applied using all objective tests. However, AECG classification based on allowable substitutions of symptoms for objective tests results in poor agreement with the proposed and LCA-derived classifications. CONCLUSION: These classification criteria developed from registry data collected using standardized measures are based on objective tests. Validation indicates improved classification performance relative to existing alternatives, making them more suitable for application in situations where misclassification may present health risks.


Asunto(s)
Fenotipo , Síndrome de Sjögren/clasificación , Síndrome de Sjögren/diagnóstico , Adulto , Anciano , Anciano de 80 o más Años , Anticuerpos Antinucleares/sangre , Biopsia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Factor Reumatoide/sangre , Glándulas Salivales/patología , Sensibilidad y Especificidad , Sialadenitis/patología , Sociedades Médicas , Estados Unidos
7.
Adv Dent Res ; 23(1): 28-33, 2011 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-21441477

RESUMEN

The Oral HIV/AIDS Research Alliance is part of the AIDS Clinical Trials Group, the largest HIV clinical trial organization in the world, and it is funded by the National Institute of Dental and Craniofacial Research, in collaboration with the National Institute of Allergy and Infectious Diseases. The alliance's main objective is to investigate the oral complications associated with HIV/AIDS as the epidemic is evolving-in particular, the effects of potent antiretrovirals on the development of oral mucosal lesions and associated fungal and viral pathogens. Furthermore, oral fluids are being explored for their potential monitoring and diagnostic role with respect to HIV disease and coinfections. This article presents an overview of the alliance, its scientific agenda, and an outline of the novel interventional and noninterventional clinical studies ongoing and developing within the AIDS Clinical Trials Group infrastructure in the United States and internationally.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Ensayos Clínicos como Asunto , Investigación Dental , Infecciones por VIH/complicaciones , VIH-1 , Enfermedades de la Boca/complicaciones , Sociedades Odontológicas/organización & administración , Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Infecciones Oportunistas Relacionadas con el SIDA/virología , Fármacos Anti-VIH/efectos adversos , Fármacos Anti-VIH/farmacología , Auditoría Clínica , Infecciones por VIH/tratamiento farmacológico , Humanos , Cooperación Internacional , Ganglios Linfáticos/virología , Enfermedades de la Boca/tratamiento farmacológico , Enfermedades de la Boca/virología , Mucosa Bucal/virología , Estudios Multicéntricos como Asunto , National Institute of Allergy and Infectious Diseases (U.S.) , National Institute of Dental and Craniofacial Research (U.S.) , Saliva/virología , Estados Unidos , Carga Viral
8.
J Oral Pathol Med ; 38(6): 481-8, 2009 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-19594839

RESUMEN

The Oral HIV/AIDS Research Alliance (OHARA) is part of the AIDS Clinical Trials Group (ACTG), the largest HIV clinical trials organization in the world. Its main objective is to investigate oral complications associated with HIV/AIDS as the epidemic is evolving, in particular, the effects of antiretrovirals on oral mucosal lesion development and associated fungal and viral pathogens. The OHARA infrastructure comprises: the Epidemiologic Research Unit (at the University of California San Francisco), the Medical Mycology Unit (at Case Western Reserve University) and the Virology/Specimen Banking Unit (at the University of North Carolina). The team includes dentists, physicians, virologists, mycologists, immunologists, epidemiologists and statisticians. Observational studies and clinical trials are being implemented at ACTG-affiliated sites in the US and resource-poor countries. Many studies have shared end-points, which include oral diseases known to be associated with HIV/AIDS measured by trained and calibrated ACTG study nurses. In preparation for future protocols, we have updated existing diagnostic criteria of the oral manifestations of HIV published in 1992 and 1993. The proposed case definitions are designed to be used in large-scale epidemiologic studies and clinical trials, in both US and resource-poor settings, where diagnoses may be made by non-dental healthcare providers. The objective of this article is to present updated case definitions for HIV-related oral diseases that will be used to measure standardized clinical end-points in OHARA studies, and that can be used by any investigator outside of OHARA/ACTG conducting clinical research that pertains to these end-points.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/diagnóstico , Infecciones por VIH/diagnóstico , Enfermedades de la Boca/diagnóstico , Infecciones Oportunistas Relacionadas con el SIDA/diagnóstico , Infecciones Oportunistas Relacionadas con el SIDA/microbiología , Infecciones Oportunistas Relacionadas con el SIDA/virología , Antirretrovirales/uso terapéutico , Candidiasis Bucal/diagnóstico , Carcinoma de Células Escamosas/diagnóstico , Queilitis/microbiología , Ensayos Clínicos como Asunto , Países en Desarrollo , Estudios Epidemiológicos , Gingivitis Ulcerosa Necrotizante/diagnóstico , Herpes Labial/diagnóstico , Humanos , Leucoplasia Vellosa/virología , Linfoma Relacionado con SIDA/diagnóstico , Linfoma no Hodgkin/diagnóstico , Enfermedades de la Boca/microbiología , Enfermedades de la Boca/virología , Neoplasias de la Boca/diagnóstico , Úlceras Bucales/diagnóstico , Enfermedades de las Parótidas/clasificación , Enfermedades de las Parótidas/diagnóstico , Sarcoma de Kaposi/diagnóstico , Estomatitis Aftosa/diagnóstico , Estomatitis Herpética/diagnóstico , Terminología como Asunto , Estados Unidos , Verrugas/virología
9.
Oral Dis ; 14(6): 497-9, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18826380

RESUMEN

OBJECTIVE: To explore the type and prevalence of oral mucosal lesions among adults with primary HIV infection (PHI) compared with HIV-negative adults at high risk for HIV disease, and in relation to HIV viral load. METHODS: We conducted standardized oral examinations to identify specific oral mucosal lesions among adults with PHI, both pre-seroconversion and post- seroconversion-recently infected, compared with HIV-negative adults. We compared the group with oral lesions to those without oral lesions with respect to HIV-RNA load and CD4 + T-cell count. RESULTS: Among 115 adults (predominantly men), pseudomembranous candidiasis was the most common oral lesion among those with PHI, and was found in 4% of the 23 participants in pre-seroconversion and in 9% of 69 participants with post-seroconversion recent infection, compared with none found among 23 HIV negatives. Among those with PHI, the median viral load was higher and the median CD4 + T-cell count lower among the 15 participants with an oral lesion of any type than among the 77 participants without oral lesions (P = 0.02 and 0.04, respectively). CONCLUSION: This finding suggests that individuals with PHI who have oral lesions may be more likely to transmit HIV because of their higher viral load.


Asunto(s)
Infecciones por VIH/epidemiología , Enfermedades de la Boca/epidemiología , Adulto , Recuento de Linfocito CD4 , Candidiasis Bucal/epidemiología , Femenino , VIH/aislamiento & purificación , Infecciones por VIH/transmisión , Seronegatividad para VIH , Seropositividad para VIH/epidemiología , Humanos , Masculino , Faringitis/epidemiología , Prevalencia , ARN Viral/análisis , Factores de Riesgo , San Francisco/epidemiología , Estomatitis Aftosa/epidemiología , Tonsilitis/epidemiología , Carga Viral/clasificación , Verrugas/epidemiología , Adulto Joven
10.
Community Dent Oral Epidemiol ; 36(6): 549-57, 2008 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18782330

RESUMEN

OBJECTIVES: Objective measures of dental diseases reflect only their clinical end-point. There is a need to use multidimensional measures of diseases that consider their psychosocial aspects and functional impact. The aim of this study is to compare the oral health-related quality of life (OHRQOL) between a group of HIV-infected women and a similar group of at-risk HIV-uninfected women, and to investigate the role of potential confounding clinical oral health and behavioral factors. METHODS: Our sample included HIV-infected women (87%) and women at risk for HIV infection (13%) followed up for 5.5 years. OHRQOL was measured using the short version of the Oral Health Impact Profile (OHIP-14), which is a validated and reliable instrument. RESULTS: HIV-infected women averaged 10% poorer OHRQOL than HIV-uninfected women; this difference was not apparent after adjusting for the number of study visits attended and significant behavioral and clinical oral health factors. The OHRQOL was inversely related to dental and periodontal diseases and to smoking and freebase cocaine use; these relationships were not confounded by HIV status. CONCLUSIONS: The study identified specific clinical and behavioral factors where dental professionals can intervene to possibly improve the OHRQOL of HIV-infected or at-risk HIV-uninfected women.


Asunto(s)
Caries Dental/psicología , Infecciones por VIH/psicología , Enfermedades Periodontales/psicología , Calidad de Vida , Perfil de Impacto de Enfermedad , Adulto , Factores de Confusión Epidemiológicos , Caries Dental/complicaciones , Femenino , Infecciones por VIH/complicaciones , Humanos , Modelos Lineales , Persona de Mediana Edad , Grupos Minoritarios , Salud Bucal , Enfermedades Periodontales/complicaciones , Pobreza , Poblaciones Vulnerables , Xerostomía/complicaciones , Xerostomía/psicología , Adulto Joven
11.
Oral Dis ; 14(4): 302-7, 2008 May.
Artículo en Inglés | MEDLINE | ID: mdl-18194139

RESUMEN

Half of the world population resides in malaria-prone areas, and the disease is responsible for more than a million deaths annually. This is apart from the economic impact of the disease through resources expended towards treatment and prevention and the loss of manpower. In addition to the overt clinical signs and symptoms, the association of malaria with other diseases such as tuberculosis and HIV infection has been described. However few studies have attempted to investigate its relationship to oral diseases. This review provides an overview of the relevance of malaria to the mouth and adjacent structures. The need for further research is also emphasized.


Asunto(s)
Malaria/complicaciones , Enfermedades de la Boca/etiología , Antimaláricos/efectos adversos , Linfoma de Burkitt/etiología , Humanos , Neoplasias de la Boca/etiología , Noma/etiología , Úlceras Bucales/inducido químicamente , Pericoronitis/etiología , Xerostomía/etiología
12.
J Dent Res ; 85(9): 794-800, 2006 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-16931859

RESUMEN

HIV transmission in the health-care setting is of concern. To assess the current position in dentistry, we have reviewed the evidence to November 1, 2005. Transmission is evidently rare in the industrialized nations and can be significantly reduced or prevented by the use of standard infection control measures, appropriate clinical and instrument-handling procedures, and the use of safety equipment and safety needles. We hope that breaches in standard infection control will become vanishingly small. When occupational exposure to HIV is suspected, the application of post-exposure protocols for investigating the incident and protecting those involved from possible HIV infection further reduces the likelihood of HIV disease, and also stress and anxiety.


Asunto(s)
Odontología , Infecciones por VIH/transmisión , Transmisión de Enfermedad Infecciosa de Profesional a Paciente , Fármacos Anti-VIH/uso terapéutico , Florida , Francia , VIH-1 , Humanos , Control de Infección Dental , Transmisión de Enfermedad Infecciosa de Paciente a Profesional/prevención & control , Exposición Profesional , Estados Unidos
13.
Adv Dent Res ; 19(1): 57-62, 2006 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-16672551

RESUMEN

The epidemiology of HIV-related oral disease in industrialized nations has evolved following the initial manifestations described in 1982. Studies from both the Americas and Europe report a decreased frequency of HIV-related oral manifestations of 10-50% following the introduction of HAART (highly active antiretroviral therapy). Evidence suggests that HAART plays an important role in controlling the occurrence of oral candidosis. The effect of HAART on reducing the incidence of oral lesions, other than oral candidosis, does not appear as significant, possibly as a result of low lesion prevalence in industrialized countries. In contrast to other oral manifestations of HIV, an increased prevalence of oral warts in patients on HAART has been reported from the USA and the UK. HIV-related salivary gland disease may show a trend of rising prevalence in the USA and Europe. The re-emergence of HIV-related oral disease may be indicative of failing therapy. A range of orofacial iatrogenic consequences of HAART has been reported, and it is often difficult to distinguish between true HIV-related oral disease manifestations and the adverse effects of HAART. A possible association between an increased risk of oral squamous cell carcinoma and HIV infection has been suggested by at least three epidemiological studies, with reference to the lip and tongue. These substantial and intensive research efforts directed toward enhancing knowledge regarding the orofacial consequences of HIV infection in the industrialized nations require dissemination in the wider health care environment.


Asunto(s)
Terapia Antirretroviral Altamente Activa/efectos adversos , Carcinoma de Células Escamosas/complicaciones , Países Desarrollados , Infecciones por VIH/complicaciones , Enfermedades de la Boca/complicaciones , Neoplasias de la Boca/complicaciones , Candidiasis Bucal/complicaciones , Candidiasis Bucal/tratamiento farmacológico , Atención Dental para Enfermos Crónicos/psicología , Caries Dental/complicaciones , Europa (Continente)/epidemiología , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Humanos , Enfermedades de la Boca/tratamiento farmacológico , Enfermedades de la Boca/epidemiología , Prevalencia , Calidad de Vida , Enfermedades de las Glándulas Salivales/inducido químicamente , Estados Unidos/epidemiología , Carga Viral , Verrugas/inducido químicamente
14.
J Dent Res ; 83(8): 639-43, 2004 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-15271974

RESUMEN

Human herpesvirus-8 (HHV-8) is the etiologic agent of Kaposi's sarcoma (KS), which occurs in epidemic form in human immunodeficiency virus(HIV)-infected individuals. Saliva is the only mucosal fluid in which infectious HHV-8 has been identified, although factors associated with HHV-8 salivary shedding remain unclear. Our study performed PCR analysis for HHV-8 DNA in saliva (and other body fluids) in 66 HIV- and HHV-8-co-infected women without KS so that we could examine predictors for HHV-8 DNA detection. CD4 count was the most significant predictor of HHV-8 salivary shedding, with increased prevalence of HHV-8 salivary DNA at higher CD4 counts. The odds of salivary HHV8 shedding at CD4 counts > = 350 cells/microL was 63 times the odds of shedding at CD4 < 350 (95%CI, 1.3-3078), with an increase in effect size when the analysis was restricted to those with a CD4 nadir > 200. Analysis of these data suggests an increased potential for HHV-8 transmission early in HIV infection, with implications for HHV-8 prevention.


Asunto(s)
Recuento de Linfocito CD4 , Infecciones por VIH/inmunología , Infecciones por VIH/virología , Infecciones por Herpesviridae/inmunología , Infecciones por Herpesviridae/virología , Herpesvirus Humano 8/aislamiento & purificación , Saliva/virología , Fármacos Anti-VIH/administración & dosificación , Terapia Antirretroviral Altamente Activa , Líquidos Corporales/virología , ADN Viral/análisis , Progresión de la Enfermedad , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Infecciones por Herpesviridae/complicaciones , Infecciones por Herpesviridae/prevención & control , Humanos , Valor Predictivo de las Pruebas , Sarcoma de Kaposi/virología , Índice de Severidad de la Enfermedad , Esparcimiento de Virus
15.
J Dent Res ; 83(2): 145-50, 2004 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-14742653

RESUMEN

Few studies assess the effectiveness of HAART on reducing the incidence and recurrence of oral lesions. We investigated such changes among 503 HIV+ women over six years in the Women's Interagency HIV Study. The incidence of erythematous candidiasis (EC), pseudomembranous candidiasis (PC), hairy leukoplakia (HL), and warts was computed over follow-up visits after HAART initiation compared with before HAART initiation. Analysis of our data demonstrates a strong decrease in candidiasis after HAART initiation. The incidence of EC fell to 2.99% from 5.48% (RR 0.545); PC fell to 2.85% from 6.70% (RR 0.425); and EC or PC fell to 3.43% from 7.35% (RR 0.466). No changes were seen in HL or warts. Higher HIV-RNA was associated with greater incidence of candidiasis and HL, but not warts. Analysis of these data indicates that recurrence and incidence of candidiasis are reduced by HAART, and that recurrence is reduced independently of CD4 and HIV-RNA.


Asunto(s)
Terapia Antirretroviral Altamente Activa , Infecciones por VIH/tratamiento farmacológico , VIH-1 , Enfermedades de la Boca/prevención & control , Fármacos Anti-VIH/uso terapéutico , Recuento de Linfocito CD4 , Candidiasis Bucal/prevención & control , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Inhibidores de la Proteasa del VIH/uso terapéutico , Seropositividad para VIH/tratamiento farmacológico , VIH-1/genética , Humanos , Leucoplasia Vellosa/prevención & control , Oportunidad Relativa , Estudios Prospectivos , ARN Viral/análisis , Recurrencia , Inhibidores de la Transcriptasa Inversa/uso terapéutico , Verrugas/prevención & control
17.
Artículo en Inglés | MEDLINE | ID: mdl-11740483

RESUMEN

The practice of pathology is currently undergoing significant change, in large part due to advances in the analysis of DNA, RNA, and proteins in tissues. These advances have permitted improved biologic insights into many developmental, inflammatory, metabolic, infectious, and neoplastic diseases. Moreover, molecular analysis has also led to improvements in accuracy of disease diagnosis and classification. It is likely that, in the future, these methods will increasingly enter into the day-to-day diagnosis and management of patients. The pathologist will continue to play a fundamental role in diagnosis and will likely be in a pivotal position to guide the implementation and interpretation of these tests as they move from the research laboratory into diagnostic pathology. The purpose of this 2-part series is to provide an overview of the principles and applications of current molecular biologic and immunologic tests. Part I will discuss the biologic fundamentals of DNA, RNA, and proteins and the methods that are currently available or likely to become available to the pathologist in the next several years for their isolation and analysis in tissue biopsies.


Asunto(s)
Diagnóstico Bucal/métodos , Técnicas de Diagnóstico Molecular , Patología Bucal/métodos , Citometría de Flujo , Humanos , Rayos Láser , Hibridación de Ácido Nucleico , Reacción en Cadena de la Polimerasa
18.
Biol Neonate ; 80(4): 286-94, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11641552

RESUMEN

OBJECTIVE: Although both incubators and radiant warmer beds can provide thermal support to infants in the neonatal intensive care unit, the transition between devices can be a stressful event. The goal of this study was to evaluate a new device that combines these methods of warming and converts between them without requiring physical movement of the infant. STUDY DESIGN: Twin preterm lambs received thermal support from a radiant warmer bed and an incubator (control), or from the Versalet 7700 Care Center (treatment) in the warmer and incubator configurations. Temperature of each lamb, as well as device heater power, were monitored every 2 min before, during, and after the transition. Physiological parameters were monitored every 15 min. RESULTS: There was a significant difference in response time between closed-open and open-closed conditions for both groups. More adverse events occurred in the control group during transfers. There were no differences in temperatures or physiological variables during transitions in either group. CONCLUSIONS: These data suggest the Versalet provides similar thermal stability to traditional devices, with fewer adverse events associated with the lack of physical movement between warming configurations. The impact of this device on the care of the preterm neonate will be evaluated in a clinical trial.


Asunto(s)
Animales Recién Nacidos/fisiología , Temperatura Corporal , Calor , Incubadoras , Animales , Peso al Nacer , Análisis de los Gases de la Sangre , Presión Sanguínea , Edad Gestacional , Frecuencia Cardíaca , Ovinos , Temperatura Cutánea , Temperatura , Gemelos
19.
J Adolesc Health ; 29(3 Suppl): 109-14, 2001 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-11530311

RESUMEN

PURPOSE: To describe baseline prevalence of oral mucosal diseases among HIV infected adolescents in relationship to biological and behavioral risk factors. METHODS: Participants in Reaching for Excellence in Adolescent Care and Health (REACH), a multicenter longitudinal observational study of HIV/AIDS in adolescents, received physical examinations, blood tests, and oral examinations at 3-month intervals. We evaluated participants for oral conditions commonly seen in relationship to HIV, and explored the association of the most common lesion with selected biological and behavioral variables at baseline using contingency tables and Fisher's Exact test. RESULTS: Among 294 HIV infected adolescents recruited between March 1996 and March 1999, the majority were female (75%), aged 17 to 18 years (69%), and African-American (73%). More than 90% had a CD4(+) T-lymphocyte count > 200 cells/mm(3) at baseline and 57% had a plasma HIV-1 RNA concentration

Asunto(s)
Candidiasis Bucal/etiología , Infecciones por VIH/complicaciones , Leucoplasia Vellosa/etiología , Adolescente , Candidiasis Bucal/virología , Estudios de Cohortes , Femenino , Humanos , Leucoplasia Vellosa/virología , Masculino , ARN Viral/análisis , Estomatitis Aftosa/etiología , Estomatitis Aftosa/virología
20.
J Perinatol ; 21(3): 167-73, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11503103

RESUMEN

OBJECTIVE: The use of both warmer beds and incubators is common in neonatal intensive care units (NICU), and transferring between these two warming devices is a routine and necessary event. This study was designed to evaluate the efficacy of a new hybrid-warming device, the Versalet, in transitioning a preterm animal from a warmer bed to an incubator mode and back. STUDY DESIGN: Nine premature lambs were randomized, following delivery, to receive thermal support from a conventional warming bed and an incubator (control group), or from the Versalet (study group) in the warmer bed and incubator modes. Core and various surface temperatures, as well as physiological parameters were measured first during warming in the radiant warmer bed mode, Versalet or Resuscitaire and then during transition to the incubator mode, Versalet or Isolette, and then back to the warmer bed mode. RESULTS: The animals remained stable during all the transitions. Despite careful planning, adverse events occurred in the control group during transfers. There were no significant differences in the temperature or physiologic profiles during any of the transitions in either group. CONCLUSION: Compared with the standard warming technique used in NICUs (separate warmer bed and incubator), the Versalet provides similar thermal and cardiovascular stability without adverse events during transition to different modes of warming. The degree to which this device would contribute to ease of management and improved outcomes in humans needs to be evaluated in a clinical trial.


Asunto(s)
Temperatura Corporal , Ambiente Controlado , Incubadoras para Lactantes , Animales , Animales Recién Nacidos/fisiología , Diseño de Equipo , Hemodinámica , Cuidado Intensivo Neonatal/métodos , Ovinos/fisiología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...