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1.
BMJ Case Rep ; 20162016 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-27511755

RESUMO

Benign metastasising leiomyoma (BML) is a rare benign disease associated with uterine leiomyoma and history of uterine surgery. It most frequently occurs in premenopausal woman, with a pulmonary localisation, and consisting of multiple nodules. We present an uncommon case of a 69-year-old woman with a single BML of an inguinal lymph node. CT scans of thorax and abdomen excluded other metastasis localisation. The patient was cured with surgical excision of the mass. Lymph node involvement has been reported incidentally in BML literature. Lymphangitic spread can be considered a possible mechanism of BML metastasis.


Assuntos
Leiomioma/patologia , Linfonodos/patologia , Neoplasias Uterinas/patologia , Idoso , Feminino , Humanos , Canal Inguinal , Metástase Linfática
2.
J Dev Behav Pediatr ; 33(6): 456-68, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22772819

RESUMO

OBJECTIVE: Cross-sectional research indicates high rates of mental health concerns among youth with perinatal HIV infection (PHIV), but few studies have examined emerging psychiatric symptoms over time. METHODS: Youth with PHIV and peer comparisons who were HIV-exposed but uninfected or living in households with HIV-infected family members (HIV-affected) and primary caregivers participated in a prospective, multisite, longitudinal cohort study. Groups were compared for differences in the incidence of emerging psychiatric symptoms during 2 years of follow-up and for differences in psychotropic drug therapy. Logistic regression models were used to evaluate the association of emerging symptoms with HIV status and psychosocial risk factors. RESULTS: Of 573 youth with study entry assessments, 92% attended at least 1 annual follow-up visit (PHIV: 296; comparisons: 229). A substantial percentage of youth who did not meet symptom criteria for a psychiatric disorder at study entry did so during follow-up (PHIV = 36%; comparisons = 42%). In addition, those who met criteria at study entry often met criteria during follow-up (PHIV = 41%; comparisons = 43%). Asymptomatic youth with PHIV were significantly more likely to receive psychotropic medication during follow-up than comparisons. Youth with greater HIV disease severity (entry CD4% <25% vs 25% or more) had higher probability of depression symptoms (19% vs 8%, respectively). CONCLUSIONS: Many youth in families affected by HIV are at risk for development of psychiatric symptoms.


Assuntos
Atitude Frente a Saúde , Infecções por HIV/congênito , Infecções por HIV/psicologia , Infecções por HIV/transmissão , Soropositividade para HIV/congênito , Soropositividade para HIV/psicologia , Transmissão Vertical de Doenças Infecciosas , Transtornos Mentais/diagnóstico , Transtornos Mentais/psicologia , Grupo Associado , Adolescente , Fármacos Anti-HIV/efeitos adversos , Fármacos Anti-HIV/uso terapêutico , Ansiedade de Separação/tratamento farmacológico , Ansiedade de Separação/epidemiologia , Ansiedade de Separação/psicologia , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/diagnóstico , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/tratamento farmacológico , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/epidemiologia , Estudos de Casos e Controles , Criança , Filho de Pais com Deficiência/psicologia , Estudos Transversais , Transtorno Depressivo Maior/tratamento farmacológico , Transtorno Depressivo Maior/epidemiologia , Transtorno Depressivo Maior/psicologia , Uso de Medicamentos , Feminino , Infecções por HIV/tratamento farmacológico , Soropositividade para HIV/tratamento farmacológico , Soropositividade para HIV/transmissão , Humanos , Incidência , Estudos Longitudinais , Masculino , Transtornos Mentais/epidemiologia , Determinação da Personalidade/estatística & dados numéricos , Psicometria , Psicotrópicos/uso terapêutico , Meio Social , Estigma Social , Carga Viral
3.
Arch Pediatr Adolesc Med ; 166(6): 528-35, 2012 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-22312169

RESUMO

OBJECTIVE: To evaluate associations between human immunodeficiency virus (HIV) disease severity and psychiatric and functional outcomes in youth with perinatal HIV infection. DESIGN: Cross-sectional analysis of entry data from an observational,prospective 2-year study.Logistic and linear regression models adjusted for potential confounders were used. SETTING: Twenty-nine sites of the International Maternal Pediatrics Adolescent AIDS Clinical Trials Group study in the United States and Puerto Rico. PARTICIPANTS: Youth aged 6 to 17 years who had HIV infection (N=319). MAIN EXPOSURES: Antiretroviral treatment and perinatal HIV infection. MAIN OUTCOME MEASURES: Youth and primary caregivers were administered an extensive battery of measures that assessed psychiatric symptoms; cognitive, social,and academic functioning; and quality of life. RESULTS: Characteristics of HIV were a current CD4 percentage of 25% or greater (74% of participants), HIV RNA levels of less than 400 copies/mL (59%), and current highly active antiretroviral therapy (81%). Analyses indicated associations of past and current Centers for Disease Control and Prevention class C designation with less severe attention-deficit/hyperactivity disorder inattention symptoms,older age at nadir CD4 percentage and lower CD4 percentage at study entry with more severe conduct disorder symptoms,higher RNA viral load at study entry with more severe depression symptoms, and lower CD4 percentage atstudy entry with less severe symptoms of depression. There was little evidence of an association between specific antiretroviral therapy and severity of psychiatric symptoms.A lower nadir CD4 percentage was associated with lower quality of life, worse Wechsler Intelligence Scale for Children Coding Recall scores, and worse social functioning. CONCLUSION: Human immunodeficiency virus illness severity markers are associated with the severity of some psychiatric symptoms and, notably, with cognitive, academic,and social functioning, all of which warrant additional study.


Assuntos
Cognição , Infecções por HIV/psicologia , HIV , Transtornos Mentais/etiologia , Qualidade de Vida , Adolescente , Terapia Antirretroviral de Alta Atividade , Criança , Estudos Transversais , Transtorno Depressivo Maior/etiologia , Feminino , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Humanos , Masculino , Estudos Prospectivos , Porto Rico , Índice de Gravidade de Doença , Estados Unidos
4.
Pediatr Infect Dis J ; 29(12): 1118-22, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20631646

RESUMO

OBJECTIVES: To measure proinflammatory cytokines (PIC) in HIV-infected children beginning or changing antiretroviral therapy (ART), evaluating associations with virologic, immunologic, serum lipid, growth, and body composition measures, markers of growth hormone action and glucose metabolism. METHODS: Forty-nine prepubertal HIV-infected children had measurements of viral load (VL), CD4 lymphocyte count and percentage, serum lipids, apolipoprotein AI/B, IGF-1, IGFBP-1, and IGFBP-3, anthropometry, bioelectrical impedance analysis, TNF-α, IL-1 ß, and IL-6 at baseline and 48 weeks of ART. RESULTS: Baseline levels were detectable (>0.1 pg/mL) for IL-1 ß in 28 of 48, and for TNF-α and Il-6 in all 49 children. TNF-α decreased with ART (P < 0.001) and IL-6 demonstrated a similar trend (P = 0.065). Children with 48-week VL <400 copies/mL had greater declines in TNF-α (mean 45%) than subjects with higher VL (5%; P = 0.009). Each 10% improvement in CD4% was associated with 26% lower TNF-α (P = 0.002) and 31% lower IL-6 (P = 0.016). Greater reductions in TNF-α were associated with lower total/HDL cholesterol ratio (P = 0.003) at week 48. CONCLUSIONS: In HIV-infected children initiating or changing ART, PIC were detectable at baseline and decreased over 48 weeks. Better immunologic responses were associated with greater reductions in TNF-α and IL-6. Reductions in TNF-α were associated with improved total/HDL cholesterol ratio.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Composição Corporal , Citocinas/sangue , Infecções por HIV/imunologia , Infecções por HIV/patologia , Lipídeos/sangue , Antropometria , Contagem de Linfócito CD4 , Relação CD4-CD8 , Criança , Pré-Escolar , Impedância Elétrica , Feminino , HIV/isolamento & purificação , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Humanos , Lactente , Masculino , Carga Viral
5.
J Dev Behav Pediatr ; 31(2): 116-28, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20110828

RESUMO

OBJECTIVE: To compare the rates of psychopathology in youths perinatally infected with HIV (N = 319) with a comparison sample of peers (N = 256) either HIV-exposed or living in households with HIV-infected family members. METHOD: Participants were randomly recruited from 29 sites in the United States and Puerto Rico and completed an extensive battery of measures including standardized DSM-IV-referenced ratings scales. RESULTS: The HIV+ group was relatively healthy (73% with CD4% >25%), and 92% were actively receiving antiretroviral therapy. Youths with HIV (17%) met symptom and impairment criteria for the following disorders: attention-deficit/hyperactivity disorder (12%), oppositional defiant disorder (5%), conduct disorder (1%), generalized anxiety disorder (2%), separation anxiety disorder (1%), depressive disorder (2%), or manic episode (1%). Many youths with HIV (27%) and peers (26%) were rated (either self- or caregiver report) as having psychiatric problems that interfered with academic or social functioning. With the exception of somatization disorder, the HIV+ group did not evidence higher rates or severity of psychopathology than peers, although rates for both groups were higher than the general population. Nevertheless, self-awareness of HIV infection in younger children was associated with more severe symptomatology, and youths with HIV had higher lifetime rates of special education (44 vs 32%), psychopharmacological (23 vs 12%), or behavioral (27 vs 17%) interventions. Youth-caregiver agreement was modest, and youths reported more impairment. CONCLUSION: HIV infection was not associated with differentially greater levels of current psychopathology; nevertheless, investigation of relations with developmental changes and specific illness parameters and treatments are ongoing.


Assuntos
Infecções por HIV/complicações , Infecções por HIV/psicologia , Transtornos Mentais/complicações , Adolescente , Fatores Etários , Fármacos Anti-HIV/uso terapêutico , Contagem de Linfócito CD4 , Cuidadores , Criança , Educação Inclusiva , Família , Feminino , Infecções por HIV/tratamento farmacológico , Humanos , Masculino , Transtornos Mentais/tratamento farmacológico , Grupo Associado , Escalas de Graduação Psiquiátrica , Porto Rico , Autoimagem , Estados Unidos
6.
Pediatrics ; 124(2): 627-36, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19596734

RESUMO

BACKGROUND: Youths perinatally infected with HIV often receive psychotropic medication and behavioral treatment for emotional and behavioral symptoms. We describe patterns of intervention for HIV-positive youth and youth in a control group in the United States. METHODS: Three hundred nineteen HIV-positive youth and 256 controls, aged 6 to 17 years, enrolled in the International Maternal Adolescent AIDS Clinical Trials 1055, a prospective, 2-year observational study of psychiatric symptoms. One hundred seventy-four youth in the control group were perinatally exposed to HIV, and 82 youth were uninfected children living in households with HIV-positive members. Youth and their primary caregivers completed Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition-referenced symptom-rating scales. Children's medication and behavioral psychiatric intervention histories were collected at entry. We evaluated the association of past or current psychiatric treatment with HIV status, baseline symptoms, and impairment by using multiple logistic regression, controlling for potential confounders. RESULTS: HIV-positive youth and youth in the control group had a similar prevalence of psychiatric symptoms (61%) and impairment (14% to 15%). One hundred four (18%) participants received psychotropic medications (stimulants [14%], antidepressants [6%], and neuroleptic agents [4%]), and 127 (22%) received behavioral treatment. More HIV-positive youth than youth in the control group received psychotropic medication (23% vs 12%) and behavioral treatment (27% vs 17%). After adjusting for symptom class and confounders, HIV-positive children had twice the odds of children in the control group of having received stimulants and >4 times the odds of having received antidepressants. Caregiver-reported symptoms or impairment were associated with higher odds of intervention than reports by children alone. CONCLUSIONS: HIV-positive children are more likely to receive mental health interventions than control-group children. Pediatricians and caregivers should consider available mental health treatment options for all children living in families affected by HIV.


Assuntos
Sintomas Afetivos/terapia , Terapia Comportamental , Infecções por HIV/congênito , Infecções por HIV/psicologia , Transtornos Mentais/terapia , Psicotrópicos/uso terapêutico , Adolescente , Sintomas Afetivos/diagnóstico , Sintomas Afetivos/epidemiologia , Sintomas Afetivos/psicologia , Antidepressivos/uso terapêutico , Antipsicóticos/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Comorbidade , Estudos Transversais , Quimioterapia Combinada , Uso de Medicamentos/estatística & dados numéricos , Feminino , Infecções por HIV/epidemiologia , Humanos , Masculino , Transtornos Mentais/diagnóstico , Transtornos Mentais/epidemiologia , Transtornos Mentais/psicologia , Razão de Chances , Determinação da Personalidade , Estudos Prospectivos , Inibidores Seletivos de Recaptação de Serotonina/uso terapêutico
7.
J Med Case Rep ; 3: 9288, 2009 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-20062778

RESUMO

INTRODUCTION: Laryngeal tuberculosis used to be a common complication in advanced pulmonary tuberculosis. However, it has become a rare occurrence in developed countries since the introduction of antituberculous agents. Moreover, the pattern of the disease has changed over the years. Nowadays, it more closely resembles a laryngeal carcinoma than any other laryngeal illness. CASE PRESENTATION: We describe the case of a 50-year-old Caucasian man who presented with the clinical picture of laryngeal cancer, but which turned out to be tuberculosis. We illustrate the difficulty of recognizing laryngeal tuberculosis both clinically and even with radiological examination. CONCLUSION: Although laryngeal tuberculosis is uncommon, especially in developed countries, it still occurs and should be considered as a differential diagnosis in any laryngeal disease, in particular in the case of a laryngeal carcinoma.

8.
J Acquir Immune Defic Syndr ; 48(4): 437-43, 2008 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-18614924

RESUMO

OBJECTIVES: To describe insulin-like growth factor-1 (IGF-1) and insulin-like growth factor-1-binding protein-1 (IGFBP-1) and IGFBP-3 in HIV+ children before and after initiating or changing antiretroviral therapy and to evaluate association of growth and body composition to growth factors at baseline and over time. METHODS: Ninety-seven prepubertal HIV+ children aged 1 month to younger than 13 years were observed over 48 weeks after beginning or changing antiretroviral therapy. Serum IGF-1, IGFBP-1, and IGFBP-3 were measured and compared with age- and sex-specific norms. Anthropometric measures were compared as follows: subjects vs matched children from (a) the National Health and Nutrition Examination Survey to generate z scores and (b) HIV-exposed, uninfected children from Women and Infants Transmission Study; and subjects with normal vs abnormal IGF-1 and IGFBP concentrations at baseline. Anthropometric changes were compared for children whose IGF-1 level normalized vs remaining subjects. Multivariate analysis adjusting for sex, race, and baseline age evaluated associations between anthropometry and IGF-1 and IGFBP concentrations. RESULTS: In multivariate analysis, lower baseline IGF-1 and IGFBP-3 were associated with lower mean weight, height, mid-arm muscle circumference, and mid-thigh circumference z scores. Twenty-four percent of children had a low IGF-1 level at baseline, 50% of whom normalized IGF-1 on study. Children whose IGF-1 normalized had greater increases in mean mid-arm muscle circumference z score (1.00 vs -0.03, P = 0.029), but a trend toward lesser mean height increase (P = 0.082) than remaining subjects. Likewise, in comparison to controls from Women and Infants Transmission Study, mean mid-arm muscle circumference also increased more in children whose IGF-1 normalized (P = 0.024) but mean height changed less (P = 0.003). Fifty-five percent of children had elevated IGFBP-1 at baseline, 69% of whom normalized. CONCLUSIONS: IGF-1 increases and IGFBP-1 decreases in HIV-infected children upon initiation or change in antiretroviral therapy. Improved muscle mass, but not linear growth, is associated with normalized IGF-1 concentration. These findings suggest that IGF-1 may merit evaluation as a potential therapeutic strategy to improve lean body mass in HIV-infected children.


Assuntos
Infecções por HIV/metabolismo , Infecções por HIV/fisiopatologia , HIV-1 , Fator de Crescimento Insulin-Like I/metabolismo , Antirretrovirais/uso terapêutico , Estatura , Peso Corporal , Criança , Desenvolvimento Infantil/efeitos dos fármacos , Pré-Escolar , Estudos de Coortes , Feminino , Crescimento , Infecções por HIV/tratamento farmacológico , Humanos , Lactente , Recém-Nascido , Proteína 1 de Ligação a Fator de Crescimento Semelhante à Insulina/sangue , Proteína 3 de Ligação a Fator de Crescimento Semelhante à Insulina/sangue , Masculino , Análise Multivariada , Resultado do Tratamento
9.
Pediatrics ; 122(1): e129-38, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18519448

RESUMO

OBJECTIVE: The objective of this study was to describe lipid profiles and glucose homeostasis in HIV-positive children after initiating or changing antiretroviral therapy and their associations with viral, immune, antiretroviral therapy, and growth factor parameters. METHODS: Ninety-seven prepubertal HIV-positive children aged 1 month to <13 years were observed for 48 weeks after beginning or changing antiretroviral therapy. Fasting lipid panels, serum glucose, insulin, insulin-like growth factor-1 and binding proteins-1 and -3, plasma viral load, and CD4% were measured. Each child was matched on age, gender, and race/ethnicity to children from the National Health and Nutrition Examination Survey, used to give z scores for each child's lipid values. Multivariate regression was used to evaluate the association of changes in z scores over 48 weeks with suppression of HIV-1 RNA, change in CD4% and growth factors, and antiretroviral therapy, adjusted for entry z score, CD4%, log(10) HIV-1 RNA, Centers for Disease Control and Prevention category, and total fat and cholesterol dietary intake. RESULTS: Lipid, apolipoprotein, and insulin levels all increased significantly by 48 weeks. Multivariate analysis of changes demonstrated that increased HDL and decreased total-HDL cholesterol ratio were associated with CD4% increase and with insulin-like growth factor-1, which increased to normal (versus remained stable or became low) over 48 weeks. Total cholesterol levels increased among children who achieved HIV-1 RNA of <400 copies per mL. Antiretroviral therapy regimens that included both a protease inhibitor and a non-nucleoside reverse transcriptase inhibitor were associated with greater increases in total-HDL cholesterol ratio than regimens that contained a protease inhibitor or a non-nucleoside reverse transcriptase inhibitor but not both. CONCLUSIONS: In these HIV-positive children with predominantly mild-to-moderate disease, initiation or change in antiretroviral therapy was associated with significant increases in multiple lipid measures and insulin resistance. Favorable lipid changes were associated with CD4% increases, suggesting a protective effect of immune reconstitution on atherosclerosis, and with increased insulin-like growth factor-1 levels, supporting the theory that reduced growth hormone resistance may be a mechanism by which lipid profiles are improved. Finally, antiretroviral therapy regimens that contain both a non-nucleoside reverse transcriptase inhibitor and a protease inhibitor are associated with worse lipid profiles than regimens that contain 1 but not both of these drug classes.


Assuntos
Glicemia/análise , Infecções por HIV/sangue , Infecções por HIV/tratamento farmacológico , Lipídeos/sangue , Adolescente , Criança , Pré-Escolar , LDL-Colesterol/sangue , Feminino , Homeostase , Humanos , Lactente , Recém-Nascido , Resistência à Insulina , Proteína 1 de Ligação a Fator de Crescimento Semelhante à Insulina/sangue , Fator de Crescimento Insulin-Like I/análise , Lipoproteínas HDL/sangue , Masculino , Análise Multivariada , Inquéritos Nutricionais , Triglicerídeos/sangue
10.
AIDS Res Hum Retroviruses ; 23(10): 1208-14, 2007 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-17961106

RESUMO

The PACTG 381 cohort included 120 adolescents infected via high-risk behaviors and treated with at least two NRTIs plus either a protease inhibitor or an efavirenz-containing HAART regimen. After 24 weeks of therapy, only 69 of 118 (59%) evaluable subjects had undetectable viral loads. We now present findings of the study after 3 years of follow-up. Virologic, immunologic, and treatment information were collected from subjects every 12 weeks beyond the first 24 weeks of therapy through 156 weeks. Of the 120 subjects starting HAART, 44 (37%) stayed on study treatment for the 3 years of observation. Twenty-nine (24%) subjects reached and maintained undetectable viral loads. Poorer adherence (p = 0.016), higher baseline viral load (p = 0.010), and CD8 naive counts (p = 0.034) predicted virologic failure. Immunologic measurements improved from entry to the end of follow-up in the subjects with undetectable viral loads. CD4 counts at the end of study were not significantly different from HIV-uninfected youth, but CD4%, CD8 counts and percent, and CD8 activation markers remained significantly different. Adolescents infected with HIV via high-risk behaviors have less than optimal responses to HAART therapy with only 24% achieving and maintaining undetectable viral loads over 3 years. Immunologic improvement was demonstrated and CD4 counts in subjects with virologic control reached levels in HIV-uninfected adolescents. Interventions, especially those focused on adherence, are necessary to improve HAART outcomes in adolescents.


Assuntos
Terapia Antirretroviral de Alta Atividade , Infecções por HIV/tratamento farmacológico , Adolescente , Adulto , Contagem de Linfócito CD4 , Criança , Estudos de Coortes , Feminino , Seguimentos , HIV/isolamento & purificação , Infecções por HIV/imunologia , Infecções por HIV/virologia , Humanos , Masculino , Cooperação do Paciente , Carga Viral
11.
Pediatr Infect Dis J ; 24(10): 880-5, 2005 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16220085

RESUMO

INTRODUCTION: Few combinations of highly active antiretrovirals have been studied in nucleoside reverse transcription inhibitor (NRTI)-experienced, human immunodeficiency virus (HIV)-infected children. We tested the efficacy, tolerability and pharmacokinetics of 2 combination therapies containing an NRTI, protease inhibitors +/- a nonnucleoside reverse transcription inhibitor (NNRTI). METHODS: This was a phase II, randomized, multicenter study. Forty-one children and youths between 5 months and 21 years with prior NRTI and no prior NNRTI or protease inhibitor experience received either nelfinavir (NFV) 30 mg/kg twice daily (bid), ritonavir (RTV) 400 mg/m bid and buffered didanosine (ddI) 240 mg/m daily (arm A) or NFV 50-55 mg/kg bid, nevirapine (NVP) 120 mg/m bid and stavudine (d4T) 1 mg/kg bid (arm B). Patients were evaluated clinically for 48 weeks after initiation of therapy. Intensive pharmacokinetic sampling occurred after 4 weeks of therapy. RESULTS: : The proportion of children with HIV-1 RNA < or =400 copies/mL and on randomized treatment at 48 weeks was 65% among children assigned NFV + RTV + ddI versus 28% among those assigned NFV + NVP + d4T (P = 0.039). No significant difference in median CD4% change from baseline to week 48 was found (3% versus 1%). No significant differences in safety or tolerability between children randomized to NFV + RTV + ddI versus NFV + NVP + d4T were identified. However, a trend toward a higher rate of permanent discontinuation of study treatment was noted among children assigned to NFV + NVP + d4T compared with NFV + RTV + ddI [7 of 20 (35%) versus 2 of 21 (10%); P = 0.12]. NFV pharmacokinetic measurements were not statistically different between the treatment groups, yet exposure to the NFV metabolite, M8, was significantly higher in subjects receiving RTV. The pharmacokinetics for NVP, RTV and d4T were similar to those of previously reported data. CONCLUSION: : Combination therapy containing NFV + RTV + ddI appears more efficacious in NRTI-experienced children than a regimen containing NFV + NVP + d4T. Differences in tolerability between the 2 treatment groups were not identified. Systemic exposure of these drugs was similar to that reported in other HIV-infected children and adults.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Nelfinavir/uso terapêutico , Inibidores da Transcriptase Reversa/uso terapêutico , Adolescente , Adulto , Fármacos Anti-HIV/efeitos adversos , Fármacos Anti-HIV/farmacocinética , Terapia Antirretroviral de Alta Atividade , Criança , Pré-Escolar , Didanosina/efeitos adversos , Didanosina/farmacocinética , Didanosina/uso terapêutico , Feminino , Infecções por HIV/virologia , HIV-1/efeitos dos fármacos , Humanos , Lactente , Masculino , Nelfinavir/efeitos adversos , Nelfinavir/farmacocinética , Nevirapina/efeitos adversos , Nevirapina/farmacocinética , Nevirapina/uso terapêutico , Inibidores da Transcriptase Reversa/efeitos adversos , Inibidores da Transcriptase Reversa/farmacocinética , Ritonavir/efeitos adversos , Ritonavir/farmacocinética , Ritonavir/uso terapêutico , Estavudina/efeitos adversos , Estavudina/farmacocinética , Estavudina/uso terapêutico , Resultado do Tratamento
12.
J Infect Dis ; 190(2): 271-9, 2004 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-15216461

RESUMO

BACKGROUND: Adolescents represent the fastest growing demographic group of new human immunodeficiency virus (HIV) infections in the United States. At present, there is little information available about their response to therapy. METHODS: We studied 120 adolescents infected via high-risk behaviors who began receiving highly active antiretroviral therapy (HAART), to determine their virologic and immunologic response to therapy. RESULTS: Subjects were enrolled at 28 sites of the Pediatric Acquired Immunodeficiency Syndrome Clinical Trials Group. After 16-24 weeks of HAART, 59% of subjects had reproducible undetectable virus loads, according to repeat measurements (virologic success). As enumerated by flow-cytometric analysis, increases in levels of CD4 helper cells (both naive and memory) and decreases in levels of CD8 suppressor cells were observed. Partial restoration of some immunologic parameters for patients who did not achieve virologic success was also observed, but to a more limited extent than for adolescents with virologic success. Adherence to HAART was the only predictor of achieving undetectable virus loads. CONCLUSIONS: Adolescents have the capacity to improve their immunologic status with HAART. Lower than expected success in virologic control is related to lack of adherence, and efforts to improve treatment outcome must stress measures to assure adherence to medication.


Assuntos
Terapia Antirretroviral de Alta Atividade , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD8-Positivos/imunologia , Infecções por HIV/tratamento farmacológico , Infecções por HIV/imunologia , HIV-1/efeitos dos fármacos , Adolescente , Adulto , Contagem de Linfócito CD4 , Relação CD4-CD8 , Criança , Feminino , Citometria de Fluxo , Infecções por HIV/virologia , HIV-1/isolamento & purificação , Humanos , Masculino , Cooperação do Paciente , RNA Viral/sangue , Resultado do Tratamento , Carga Viral
13.
Antivir Ther ; 7(4): 267-70, 2002 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12553481

RESUMO

Didanosine remains a cornerstone nucleoside analogue for the treatment of HIV infection. A potential problem with the buffered formulations of didanosine is the likelihood of interactions with other drugs that require an acidic pH for absorption or can be chelated by cations in the buffer. An encapsulated enteric-coated (EC) bead formulation of didanosine has been approved and is routinely used as an alternative to the chewable/dispersible buffered tablet formulation. The objective of this study was to evaluate the single-dose pharmacokinetics of didanosine EC at 240 mg/m2 in 10 HIV-infected children. Didanosine EC was administered at time 0 on an empty stomach with no other concomitant medications. Blood samples were collected at pre-dose, 0.5, 1, 2, 4, 8 and 12 h post-dose. Didanosine was measured in plasma using radioimmunoassay. Ten subjects completed the intensive pharmacokinetic evaluation; data are available for eight participants. Plasma concentrations of didanosine following EC administration were analysed using non-compartmental methods. Median (range) AUCinfinity, Cmax, Tmax and CL/F for didanosine following EC administration were 2385 (1291, 3966) ng x h/ml, 854 (300, 1799) ng/ml, 3.0 (1.0, 8.1) h and 3.3 (2.7-6.4) l/h/kg, respectively. Results from this study indicate that the didanosine Cmax is decreased and Tmax is prolonged, but total exposure of didanosine in plasma following didanosine EC administration appears similar to previous data collected in HIV-infected children following buffered didanosine administration.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Didanosina/administração & dosagem , Infecções por HIV/tratamento farmacológico , Fármacos Anti-HIV/farmacocinética , Área Sob a Curva , Química Farmacêutica , Criança , Pré-Escolar , Didanosina/farmacocinética , Feminino , Humanos , Masculino , Comprimidos com Revestimento Entérico
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