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1.
Clin Infect Dis ; 28(3): 587-96, 1999 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-10194083

RESUMEN

We developed and compared five scoring systems designed to quantitate therapeutic response in cases of oropharyngeal candidiasis. We utilized prospectively collected data on 114 patients treated with several doses of the azole D0870. Patients were infected with fluconazole-susceptible (n = 49) or -resistant organisms (MIC, > or = 16 mg/mL; n = 61). Patients with fluconazole resistance had lower CD4+ cell counts at baseline; more symptoms (P = .0006); a higher frequency of dysgeusia (P = .004), dysphagia (P = .006), and throat pain (P = .0034); and greater oral coverage by plaques of Candida. There was no difference between the two groups in terms of colony-forming units, and any change did not correlate with response to therapy. Resolution of dysphagia (P < .01) and oral pain (P < .01) correlated well with response to therapy, unlike retrosternal pain and throat pain, which were also less frequent. Xerostomia, a "furry" taste, and dysgeusia were frequent nonspecific symptoms. Scoring system C, weighting resolution of a symptom higher than absence of a symptom at baseline, yielded the best correlation with global outcome (r = 0.86) and allows the quantitation of incomplete but clinically beneficial responses to therapy.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Antifúngicos/uso terapéutico , Candidiasis Bucal/tratamiento farmacológico , Enfermedades del Esófago/tratamiento farmacológico , Triazoles/uso terapéutico , Infecciones Oportunistas Relacionadas con el SIDA/microbiología , Antifúngicos/farmacología , Candida albicans/efectos de los fármacos , Candida albicans/crecimiento & desarrollo , Candida albicans/aislamiento & purificación , Candidiasis Bucal/microbiología , Candidiasis Bucal/patología , Recuento de Colonia Microbiana , Farmacorresistencia Microbiana , Enfermedades del Esófago/microbiología , Fluconazol/farmacología , Fluconazol/uso terapéutico , Humanos , Pruebas de Sensibilidad Microbiana , Estudios Prospectivos , Resultado del Tratamiento , Triazoles/farmacología
2.
Analyst ; 123(1): 41-50, 1998 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-9581019

RESUMEN

Ferritin is a ubiquitous protein which plays a major role in iron sequestration, detoxification and storage. In this paper we highlight the role of ferritin in iron homeostasis and describe factors and diseases that affect its expression. We also describe new studies which further characterize the structure and expression of a novel form of ferritin heavy (H) chain mRNA that was identified in brain and discuss possible implications of these findings. Human fetal and adult brain cDNA libraries previously were screened with cDNA for well-characterized liver ferritin H. In addition to 'liver-like' brain ferritin H cDNA, novel ferritin H cDNAs with an additional 279 nucleotide sequence at the 3'untranslated region (UTR) were identified in both libraries (see refs. 1 and 2; Dhar, M., Chauthaiwale, V., and Joshi, J. G., Gene, 1993, 126, 275 and Dhar, M., and Joshi, J. G., J. Neurochem., 1993, 61, 2140). However, relative to liver ferritin H cDNA, these novel cDNAs were incomplete at their 5'ends [see ref. 3; Joshi, J. G., Fleming, J. T., Dhar, M. S., and Chauthaiwale, V., J. Neurol Sci., 1995, 134, (Suppl.), 52]. In the present paper, by sequencing of cDNAs using reverse transcriptase polymerase chain reaction, we show that the 279 nt 3'UTR sequence, a coding sequence identical to that in human liver ferritin H, and a full-length 5'UTR that includes one mRNA regulatory iron-response element sequence, co-exist in at least one species of ferritin H transcript in six normal human adult and six late-onset, sporadic Alzheimer disease (AD) brains. This sequence is the same in the normal and AD brains. Dot-blot analysis of poly A+ RNAs from different human tissues indicates that relative to the coding sequence of ferritin H, expression of the 279 nt 3'UTR sequence varies among different tissues, is highest in the adult brain, and is very low in fetal brain. In normal adult hippocampus, ferritin H RNA with the novel 279 nt sequence localizes strongly to small non-neuronal cells, capillary endothelial cells, and to selected populations of neurons (granule cells of the dentate gyrus). Significant homology was observed between a region in the 279 nt 3'UTR segment of ferritin H RNA and the 3'UTR of cyclooxygenase-2 mRNA (an inducible iron-containing enzyme involved in prostaglandin synthesis). Possible functions for ferritin H protein derived from the novel message and for the elongated 3'UTR and 5'UTR are discussed.


Asunto(s)
Enfermedad de Alzheimer/metabolismo , ADN Complementario/química , Ferritinas/genética , Hipocampo/fisiología , Hierro/metabolismo , Adulto , Secuencia de Bases , Expresión Génica , Hipocampo/embriología , Homeostasis , Humanos , Isomerismo , Datos de Secuencia Molecular , Estructura Secundaria de Proteína , ARN/análisis
3.
Holist Nurs Pract ; 9(4): 24-33, 1995 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-7601881

RESUMEN

The purpose of this study was to understand what homeless children regard as special. Jean Watson's conceptualization of human care was the orienting framework used in the development and construction of the study. Twelve children between the ages of 6 and 12 years, living at a public shelter, were the participants. The children were given cameras and asked to take photographs of anything that was special to them. Their descriptions of their photographs were analyzed using Moustakas' heuristic method. Important themes derived from qualitative interviews with the children included having fun, being with special people, feeling cared for, and always being there.


Asunto(s)
Personas con Mala Vivienda/psicología , Fotograbar , Psicología Infantil , Niño , Femenino , Humanos , Masculino , Modelos de Enfermería , Investigación Metodológica en Enfermería
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