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1.
HIV Med ; 23(6): 639-649, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-34964226

RESUMO

OBJECTIVES: HIV outcomes centre primarily around clinical markers with limited focus on patient-reported outcomes. With a global trend towards capturing the outcomes that matter most to patients, there is agreement that standardizing the definition of value in HIV care is key to their incorporation. This study aims to address the lack of routine, standardized data in HIV care. METHODS: An international working group (WG) of 37 experts and patients, and a steering group (SG) of 18 experts were convened from 14 countries. The project team (PT) identified outcomes by conducting a literature review, screening 1979 articles and reviewing the full texts of 547 of these articles. Semi-structured interviews and advisory groups were performed with the WG, SG and people living with HIV to add to the list of potentially relevant outcomes. The WG voted via a modified Delphi process - informed by six Zoom calls - to establish a core set of outcomes for use in clinical practice. RESULTS: From 156 identified outcomes, consensus was reached to include three patient-reported outcomes, four clinician-reported measures and one administratively reported outcome; standardized measures were included. The WG also reached agreement to measure 22 risk-adjustment variables. This outcome set can be applied to any person living with HIV aged > 18 years. CONCLUSIONS: Adoption of the HIV360 outcome set will enable healthcare providers to record, compare and integrate standardized metrics across treatment sites to drive quality improvement in HIV care.


Assuntos
Infecções por HIV , Adulto , Consenso , Infecções por HIV/terapia , Pessoal de Saúde , Humanos , Avaliação de Resultados em Cuidados de Saúde , Medidas de Resultados Relatados pelo Paciente , Resultado do Tratamento
2.
Pharmacol Res ; 165: 105446, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33515705

RESUMO

The antiretroviral nevirapine (NVP) is associated to a reduction of atherosclerotic lesions and increases in high-density lipoprotein (HDL)-cholesterol. Despite being a hepatotoxic drug, which forbids its re-purposing to other therapeutic areas, not all NVP metabolites have the same potential to induce toxicity. Our aim was to investigate the effects of NVP and its metabolites in an exploratory study, towards the identification of a candidate to boost HDL. A pilot prospective (n = 11) and a cross-sectional (n = 332) clinical study were performed with the following endpoints: HDL-cholesterol and apolipoprotein A1 (ApoA1) levels, anti-HDL and anti-ApoA1 antibodies titers, paraoxonase, arylesterase and lactonase activities of paraoxonase-1, and NVP's metabolite profile. NVP treatment increased HDL-cholesterol, ApoA1 and paraoxonase-1 activities, and lowered anti-HDL and anti-ApoA1 titers. In the prospective study, the temporal modulation induced by NVP was different for each HDL-related endpoint. The first observation was a decrease in the anti-HDL antibodies titers. In the cross-sectional study, the lower titers of anti-HDL antibodies were associated to the proportion of 2-hydroxy-NVP (p = 0.03). In vitro models of hepatocytes were employed to clarify the individual contribution of NVP's metabolites for ApoA1 modulation. Long-term incubations of NVP and 2-hydroxy-NVP in the metabolically competent 3D model caused an increase in ApoA1 reaching 43 % (p < 0.05) and 86 % (p < 0.001), respectively. These results support the contribution of drug biotransformation for NVP-induced HDL modulation, highlighting the role of 2-hydroxy-NVP as ApoA1 booster and its association to lower anti-HDL titers. This biotransformation-guided approach allowed us to identify a non-toxic NVP metabolite as a candidate for targeting HDL.


Assuntos
Fármacos Anti-HIV/metabolismo , Fármacos Anti-HIV/farmacologia , Apolipoproteína A-I/sangue , HDL-Colesterol/sangue , Nevirapina/metabolismo , Nevirapina/farmacologia , Adulto , Idoso , Animais , Fármacos Anti-HIV/uso terapêutico , Apolipoproteína A-I/agonistas , Células Cultivadas , HDL-Colesterol/antagonistas & inibidores , Estudos Transversais , Feminino , Infecções por HIV/sangue , Infecções por HIV/tratamento farmacológico , HIV-1/efeitos dos fármacos , Células Hep G2 , Humanos , Masculino , Pessoa de Meia-Idade , Nevirapina/uso terapêutico , Projetos Piloto , Estudos Prospectivos , Ratos , Ratos Wistar
3.
Infection ; 48(4): 497-506, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32198726

RESUMO

BACKGROUND: Although guidelines for the management of HIV infection include recommendations for aging people living with HIV (PLWH), clinical practice of European HIV care providers may vary. METHOD: We performed a study using a 3-phase Delphi methodology by involving a panel of clinicians with expertise in HIV infection clinical management. The main aim of the study was to assess the care provider prospective on how HIV clinical care should be delivered to ageing PLWH. The first phase involved ten clinicians to identify HIV comorbidities of interest. The second and third phases recruited clinicians virtually via a web-based questionnaire that included 137 questions focussed on 11 comorbidities (e.g. cardiovascular disease, pulmonary disease, etc.). RESULTS: Results were analysed thematically and consensus (or not) among European physicians reported. Ninety-seven and 85 responses were collected in phase 2 and 3, respectively. High levels of agreement were found among clinical care providers across Europe and with the European AIDS Conference Society guidelines regarding key items of clinical management of comorbidities in ageing PLWH. CONCLUSION: However, we identified some important gaps, such as the lack of standardisation or implementation of the assessment of frailty or menopause, which are emerging as important factors to optimise ageing PLWH clinical care. Further studies are warranted to confirm whether intensified screening translates into HIV morbidity advances.


Assuntos
Envelhecimento , Competência Clínica/estatística & dados numéricos , Infecções por HIV/psicologia , Médicos/psicologia , Técnica Delphi , Europa (Continente) , Feminino , Infecções por HIV/terapia , Humanos , Masculino
5.
J Prosthet Dent ; 119(5): 833-839, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-28967396

RESUMO

STATEMENT OF PROBLEM: Saliva contamination has been shown to decrease bonding to zirconia. Adopting a less contamination-sensitive cement system may be an alternative to decontamination. PURPOSE: The purpose of this in vitro study was to assess the ability of different primer/cement systems to promote a durable bond to zirconia after saliva contamination. MATERIAL AND METHODS: Zirconia blocks (Lava Plus) (N=320) were airborne-particle abraded (50 µm Al2O3) and divided into 32 experimental groups (n=10) according to the variables in the study: saliva contamination; primer/cement system (Panavia SA [PSA]; RelyX Unicem 2 [RU2]; Bifix SE [BSE]; Panavia F2.0 [PF2]; Scotchbond Universal + RelyX Ultimate [SBU+RXU]; Futurabond M+ + Bifix QM [FBM+BQM]; All-Bond Universal + Duo-link [ABU+DL]; Z-Prime Plus + Duo-link [ZPP+DL]; and aging period (72 hours; 30 days with 10 000 thermocycles at 5°C to 55°C). After half of the blocks had been contaminated with fresh human saliva for 10 minutes, rinsed with water, and air-dried, each primer/cement was applied. Polymerized composite resin disks were then placed over the cement, and the resin cement was light-polymerized for 20 seconds each at 2 opposite margins. After the aging time, the specimens were tested in shear (1 mm/min). The failure mode was classified as adhesive, cohesive, or mixed. Statistical analysis of the shear bond strength (SBS) data was performed with ANOVA followed by Tukey honest significant difference post hoc tests. Chi-square tests were used to analyze the failure mode data (α=.05). RESULTS: The mean SBS ranged between 4.2 and 34.5 MPa. Shear bond strength was influenced (P<.001) by all the factors studied (cement system, saliva contamination, aging time). SBU+RXU and FBM+BQM showed a higher mean SBS than those of the other experimental groups (P<.05) and were the only groups not affected by saliva contamination (P>.05). Failure was predominantly classified as adhesive. CONCLUSIONS: In general, saliva contamination and aging decreased bonding efficacy. Two systems, combining an application of a universal adhesive and a resin cement (SBU+RXU and FBM+BQM) were not affected by saliva contamination.


Assuntos
Colagem Dentária/métodos , Cimentos de Resina/química , Saliva/química , Zircônio/química , Materiais Dentários/química , Hidroxibenzoatos , Técnicas In Vitro , Teste de Materiais , Metacrilatos , Nitrofuranos , Resistência ao Cisalhamento , Propriedades de Superfície
6.
J Antimicrob Chemother ; 69(2): 476-82, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24051761

RESUMO

OBJECTIVES: Nevirapine is widely used for the treatment of HIV-1 infection; however, its chronic use has been associated with severe liver and skin toxicity. Women are at increased risk for these toxic events, but the reasons for the sex-related differences are unclear. Disparities in the biotransformation of nevirapine and the generation of toxic metabolites between men and women might be the underlying cause. The present work aimed to explore sex differences in nevirapine biotransformation as a potential factor in nevirapine-induced toxicity. METHODS: All included subjects were adults who had been receiving 400 mg of nevirapine once daily for at least 1 month. Blood samples were collected and the levels of nevirapine and its phase I metabolites were quantified by HPLC. Anthropometric and clinical data, and nevirapine metabolite profiles, were assessed for sex-related differences. RESULTS: A total of 52 patients were included (63% were men). Body weight was lower in women (P = 0.028) and female sex was associated with higher alkaline phosphatase (P = 0.036) and lactate dehydrogenase (P = 0.037) levels. The plasma concentrations of nevirapine (P = 0.030) and the metabolite 3-hydroxy-nevirapine (P = 0.035), as well as the proportions of the metabolites 12-hydroxy-nevirapine (P = 0.037) and 3-hydroxy-nevirapine (P = 0.001), were higher in women, when adjusted for body weight. CONCLUSIONS: There was a sex-dependent variation in nevirapine biotransformation, particularly in the generation of the 12-hydroxy-nevirapine and 3-hydroxy-nevirapine metabolites. These data are consistent with the sex-dependent formation of toxic reactive metabolites, which may contribute to the sex-dependent dimorphic profile of nevirapine toxicity.


Assuntos
Fármacos Anti-HIV/efeitos adversos , Fármacos Anti-HIV/sangue , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/sangue , Nevirapina/efeitos adversos , Nevirapina/sangue , Caracteres Sexuais , Adulto , Biotransformação/efeitos dos fármacos , Biotransformação/fisiologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
7.
Front Nutr ; 9: 1028261, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36606228

RESUMO

Introduction: While sweet taste perception is a potential determinant of feeding behavior in obesity, the supporting evidence is inconsistent and is typically associated with methodological limitations. Notably, possible associations between sweet taste perception and measures of food reward remain undetermined. Materials and methods: We conducted a cross-sectional analysis comparing 246 individuals with severe obesity and 174 healthy volunteers using a validated method for taste perception assessment. We included gustatory variables, namely intensity and pleasantness ratings of sour, salt, sweet, and bitter tastants, and taste thresholds assessed by electrogustometry. Reward-related feeding behavior, including hedonic hunger, food addiction, feeding behavior traits, and acceptance of foods and alcohol, was evaluated using self-rated scales for comparison with gustatory measures. Result: In logistic regressions adjusted for age, gender, educational level, and research center, we found that a greater likelihood of belonging to the obesity group was associated with higher sweet intensity ratings (OR = 1.4, P = 0.01), hedonic hunger, food addiction symptoms, restrained and emotional eating (1.7 < OR ≤ 4.6, all P ≤ 0.001), and lower alcohol acceptance (OR = 0.6, P = 0.0002). Using principal component analysis, we found that while hedonic hunger, food addiction, and emotional eating were strongly interrelated, they were not associated with sweet intensity perception that, in turn, had a closer relationship with alcohol acceptance and restrained eating. Conclusion: We found that individuals with obesity report higher sweet taste intensity ratings than healthy controls. Furthermore, while psychological measures of reward-related feeding behavior assess a common construct, sweet intensity perception may represent a different obesity-related dimension.

8.
Cureus ; 13(11): e19992, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34984144

RESUMO

Lymphomatoid granulomatosis (LYG) is a rare B-cell lymphoproliferative disorder associated with Epstein-Barr virus (EBV) infection and is frequently associated with immunodeficiency. Pulmonary involvement with angiocentric distribution is the most common clinical manifestation. Diagnosis is confirmed by tissue biopsy, usually from lung lesions. Due to the paucity of reported cases, there is no validated treatment for LYG. Therapeutic options include interferon-alpha, systemic corticosteroids, rituximab, chemotherapy, and autologous hematopoietic stem cell transplantation. We report a case of a 49-year-old man, with human immunodeficiency virus type 2 (HIV-2) infection, who was diagnosed with LYG with lung involvement and had a full remission after treatment with R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone).

9.
Eur J Case Rep Intern Med ; 8(1): 002182, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33585337

RESUMO

Gitelman syndrome (GS) is a hereditary renal tubulopathy caused by mutations in the SLC12A3 gene which encodes the thiazide-sensitive apical sodium-chloride cotransporter. GS is characterized by hypokalaemia, hypomagnesaemia and metabolic alkalosis. Treatment is based on potassium and magnesium replacement ad eternum. We present the case of a young man with palpitations and persistent hypokalaemia, who was diagnosed with GS. Genetic testing revealed 2 mutations in the gene SLC12A3 of combined heterozygosity, both considered pathological. Interestingly, 1 of these mutations was not yet described in the literature or in the reviewed databases. We also discuss the clinical approach and the specificities of managing this rare hereditary renal tubulopathy.. LEARNING POINTS: Gitelman syndrome is a rare cause of persistent hypokalaemia.A definitive diagnosis is determined by the identification of mutations in the SLC12A3 gene.Management consists of chronic potassium and magnesium supplementation aimed at symptom control.

10.
Eur J Case Rep Intern Med ; 7(11): 001831, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33194857

RESUMO

Rendu-Osler-Weber syndrome is a rare inherited syndrome with autosomal dominant transmission characterized by systemic arteriovenous malformations (AVMs) with multi-organ involvement. Its incidence is 1-2/100,000 and it is predominant in females (the male/female ratio varies from 1:2 to 1:4.5). Clinical manifestations and complications are related to recurrent bleeding and, in some cases, the development of end-organ failure. Management is mostly supportive care and it is essential to promote control of the disease as much as possible and screen eventual complications. We describe the case of a 67-year-old male patient with Rendu-Osler-Weber syndrome admitted to the emergency department with decompensated heart failure due to acute anaemia because of severe epistaxis. During hospitalization, the patient progressed to acute-on-chronic liver failure with hepatic encephalopathy and an abdominal computed tomography scan showed multiple hepatic AVMs considered to be the cause of the chronic liver disease. LEARNING POINTS: Rendu-Osler-Weber syndrome is a rare autosomal dominant syndrome characterized by systemic arteriovenous malformations (AVMs) with multi-organ involvement, in which the most common manifestation is recurrent epistaxis.In more severe cases the prognosis is determined by organ dysfunction caused by AVMs, including hepatic involvement, which happens in 74-79% of cases, leading to poor outcomes.The treatment is mainly supportive care so early recognition of major organ involvement is fundamental to prevent severe complications.

12.
Sci Rep ; 10(1): 8324, 2020 05 20.
Artigo em Inglês | MEDLINE | ID: mdl-32433484

RESUMO

Neck circumference (NC) has been proposed as a simple and practical tool, independently associated with cardiometabolic risk factors. However, the association of NC with inter-muscular adipose tissue (IMAT) is still to be determined. We aimed to examine the association of NC with thigh IMAT, and visceral adipose tissue (VAT) measured with computed tomography (CT) in overweight/obese women. 142 premenopausal overweight and obese Caucasian women participated in this cross-sectional study. NC was measured with an inextensible metallic tape above the thyroid cartilage according to International Society for Advancement of Kinanthropometry protocol. Thigh IMAT and VAT volumes were measured with a single cross-sectional CT. Regarding the covariates, fat mass (FM) was assessed with dual-energy x-ray absorptiometry and physical activity was objectively measured with accelerometry. NC was positively associated with thigh IMAT and VAT volumes (standardized ß coefficient: ß = 0.45, P-value = ≤0.001, ß = 0.60, P = ≤ 0.001; respectively), which persisted after adjusting for age, height, overall FM or moderate-to-vigorous physical activity. Our findings show that NC is associated with thigh IMAT volume in overweight and obese premenopausal Caucasian women, regardless of the amount of lower-body fatness. These results suggest underscoring the relevance of NC as a marker of adipose tissue content in thigh skeletal muscle.


Assuntos
Músculo Esquelético/patologia , Pescoço/patologia , Obesidade/patologia , Adulto , Biomarcadores , Composição Corporal , Pesos e Medidas Corporais , Estudos Transversais , Feminino , Humanos , Gordura Intra-Abdominal , Pré-Menopausa , Coxa da Perna , Tomografia Computadorizada por Raios X
13.
Int J Behav Nutr Phys Act ; 6: 9, 2009 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-19203389

RESUMO

BACKGROUND: Changes in body image and subjective well-being variables (e.g. self-esteem) are often reported as outcomes of obesity treatment. However, they may, in turn, also influence behavioral adherence and success in weight loss. The present study examined associations among obesity treatment-related variables, i.e., change in weight, quality of life, body image, and subjective well-being, exploring their role as both mediators and outcomes, during a behavioral obesity treatment. METHODS: Participants (BMI = 31.1 +/- 4.1 kg/m2; age = 38.4 +/- 6.7 y) were 144 women who attended a 12-month obesity treatment program and a comparison group (n = 49), who received a general health education program. The intervention included regular group meetings promoting lasting behavior changes in physical activity and dietary intake. Body image, quality of life, subjective well-being, and body weight were measured at baseline and treatment's end. Mediation was tested by multiple regression and a resampling approach to measure indirect effects. Treatment group assignment was the independent variable while changes in weight and in psychosocial variables were analyzed alternatively as mediators and as dependent variables. RESULTS: At 12 months, the intervention group had greater weight loss (-5.6 +/- 6.8% vs. -1.2 +/- 4.6%, p < .001) and larger decreases in body size dissatisfaction (effect size of 1.08 vs. .41, p < .001) than the comparison group. Significant improvements were observed in both groups for all other psychosocial variables (effect sizes ranging from .31-.75, p < .05). Mediation analysis showed that changes in body image and body weight were concurrently mediators and outcomes of treatment, suggesting reciprocal influences. Weight loss partially mediated the effect of treatment on quality of life and on self-esteem but the reciprocal effect was not observed. CONCLUSION: Changes in weight and body image may reciprocally affect each other during the course of behavioral obesity treatment. No evidence of reciprocal relationships was found for the other models under analysis; however, weight changes partially explained the effects of treatment on quality of life and self-esteem. Weight and psychosocial changes co-occur during treatment and will probably influence each other dynamically, in ways not yet adequately understood. Results from this study support the inclusion of intervention contents aimed at improving body image in weight management programs.

14.
Clin J Gastroenterol ; 12(6): 583-587, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31111432

RESUMO

We present the case of a woman infected with the HIV type 1, controlled with highly active antiretroviral therapy. In the meantime, she developed a severe perianal disease, with complex fistulae and chronic anal fissures. After developing a severe chronic diarrhea, a total ileocolonoscopy with biopsies was performed, showing multiple ileal and segmental colonic erosions. Histology favoured a Crohn's disease diagnosis. Despite the limited experience of anti-tumour necrosis factor agents in the HIV-infected population, infliximab was started in this patient, due to her severe and symptomatic Crohn's disease, with a controlled HIV infection. No side effects were reported and her bowel movements and perianal disease improved right after induction regimen with infliximab. 1 year after starting this therapy she is in clinical and endoscopic remission. The CD4+ T-cell count remained stable, the HIV-RNA undetectable and no opportunistic infections were reported during follow-up period. Data concerning the use of anti-tumour necrosis factor drugs is limited in patients with both inflammatory bowel disease and HIV infection. Only three cases of Crohn's disease and concomitant HIV infection treated with infliximab were reported in the literature. This case report might help future decisions in patients with a similar clinical situation.


Assuntos
Doença de Crohn/tratamento farmacológico , Infecções por HIV/complicações , HIV-1 , Infliximab/uso terapêutico , Proctite/tratamento farmacológico , Colite/complicações , Colite/tratamento farmacológico , Colite/patologia , Doença de Crohn/complicações , Doença de Crohn/patologia , Feminino , Humanos , Ileíte/complicações , Ileíte/tratamento farmacológico , Ileíte/patologia , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Proctite/complicações , Proctite/patologia , Resultado do Tratamento
15.
Br J Clin Pharmacol ; 66(4): 551-5, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18662298

RESUMO

AIMS: Data on efavirenz in HIV/viral hepatitis co-infected patients is non-consensual, probably due to liver function heterogeneity in the patients included. METHODS: A case control study was performed on 27 HIV-infected patients, with controlled and homogenous markers of hepatic function, either mono-infected or co-infected with HBV/HCV, to ascertain the influence of viral hepatitis on efavirenz concentrations over a 2-year follow-up period. RESULTS: No differences were found in efavirenz concentrations between groups both during and at the end of the follow-up period: control (2.43 +/- 1.91 mg l(-1)) vs. co-infected individuals (2.37 +/- 0.37 mg l(-1)). CONCLUSION: It was concluded that HBV/HCV infections in themselves do not predispose to an overexposure to efavirenz.


Assuntos
Benzoxazinas/uso terapêutico , Infecções por HIV/tratamento farmacológico , Hepatite B Crônica/tratamento farmacológico , Hepatite C Crônica/tratamento farmacológico , Inibidores da Transcriptase Reversa/uso terapêutico , Infecções Oportunistas Relacionadas com a AIDS/tratamento farmacológico , Adulto , Alcinos , Benzoxazinas/farmacocinética , Contagem de Linfócito CD4 , Estudos de Casos e Controles , Ciclopropanos , Progressão da Doença , Relação Dose-Resposta a Droga , Monitoramento de Medicamentos , Feminino , Seguimentos , Infecções por HIV/metabolismo , Hepatite B Crônica/metabolismo , Hepatite C Crônica/metabolismo , Humanos , Hepatopatias/complicações , Hepatopatias/tratamento farmacológico , Masculino , Projetos Piloto , Inibidores da Transcriptase Reversa/farmacocinética , Índice de Gravidade de Doença , Resultado do Tratamento , Carga Viral
16.
Int J Behav Nutr Phys Act ; 4: 14, 2007 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-17448248

RESUMO

BACKGROUND: This study was conceived to analyze how exercise and weight management psychosocial variables, derived from several health behavior change theories, predict weight change in a short-term intervention. The theories under analysis were the Social Cognitive Theory, the Transtheoretical Model, the Theory of Planned Behavior, and Self-Determination Theory. METHODS: Subjects were 142 overweight and obese women (BMI = 30.2 +/- 3.7 kg/m2; age = 38.3 +/- 5.8 y), participating in a 16-week University-based weight control program. Body weight and a comprehensive psychometric battery were assessed at baseline and at program's end. RESULTS: Weight decreased significantly (-3.6 +/- 3.4%, p < .001) but with great individual variability. Both exercise and weight management psychosocial variables improved during the intervention, with exercise-related variables showing the greatest effect sizes. Weight change was significantly predicted by each of the models under analysis, particularly those including self-efficacy. Bivariate and multivariate analyses results showed that change in variables related to weight management had a stronger predictive power than exercise-specific predictors and that change in weight management self-efficacy was the strongest individual correlate (p < .05). Among exercise predictors, with the exception of self-efficacy, importance/effort and intrinsic motivation towards exercise were the stronger predictors of weight reduction (p < .05). CONCLUSION: The present models were able to predict 20-30% of variance in short-term weight loss and changes in weight management self-efficacy accounted for a large share of the predictive power. As expected from previous studies, exercise variables were only moderately associated with short-term outcomes; they are expected to play a larger explanatory role in longer-term results.

17.
Int J Behav Nutr Phys Act ; 1(1): 12, 2004 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-15287984

RESUMO

BACKGROUND: The purpose of this study was to analyze pretreatment predictors of short-term weight loss in Portuguese overweight and obese women involved in a weight management program. Behavioral and psychosocial predictors were selected a priori from previous results reported in American women who participated in a similar program. METHODS: Subjects were 140 healthy overweight/obese women (age, 38.3 +/- 5.9 y; BMI, 30.3 +/- 3.7 kg/m2) who participated in a 4-month lifestyle weight loss program consisting of group-based behavior therapy to improve diet and increase physical activity. At baseline, all women completed a comprehensive behavioral and psychosocial battery, in standardized conditions. RESULTS: Of all starting participants, 3.5% (5 subjects) did not finish the program. By treatment's end, more than half of all women had met the recomended weight loss goals, despite a large variability in individual results (range for weight loss = 19 kg). In bivariate and multivariate correlation/regression analysis fewer previous diets and weight outcome evaluations, and to a lesser extent self-motivation and body image were significant and independent predictors of weight reduction, before and after adjustment for baseline weight. A negative and slightly curvilinear relationship best described the association between outcome evaluations and weight change, revealing that persons with very accepting evaluations (that would accept or be happy with minimal weight change) lost the least amount of weight while positive but moderate evaluations of outcomes (i.e., neither low nor extremely demanding) were more predictive of success. Among those subjects who reported having initiated more than 3-4 diets in the year before the study, very few were found to be in the most successful group after treatment. Quality of life, self-esteem, and exercise variables did not predict outcomes. CONCLUSIONS: Several variables were confirmed as predictors of success in short-term weight loss and can be used in future hypothesis-testing studies and as a part of more evolved prediction models. Previous dieting, and pretreatment self-motivation and body image are associated with subsequent weight loss, in agreement with earlier findings in previous samples. Weight outcome evaluations appear to display a more complex relationship with treatment results and culture-specific factors may be useful in explaining this pattern of association.

18.
J Int AIDS Soc ; 17(4 Suppl 3): 19575, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25394082

RESUMO

Nevirapine (NVP) is associated with severe liver and skin toxicity through sulfotransferase (SULT) bioactivation of the phase I metabolite 12-hydroxy-NVP [1-3]. The female sex, a well-known risk factor for NVP-induced toxicity, is associated with higher SULT expression (4) and lower plasma levels of 12-hydroxy-NVP [3]. Interestingly, apolipoprotein A1 (ApoA1) increases SULT2B1 activity and ApoA1 synthesis is increased by NVP [5, 6]. Herein, we explore the effect of ApoA1 levels on NVP metabolism and liver function. The study protocol was firstly approved by the hospitals' Ethics Committees. All included individuals were HIV-infected patients treated with NVP for at least one month. The plasma concentrations of NVP and its phase I metabolites were quantified by HPLC [7]. ApoA1 levels were assessed by an immunoturbidimetric assay. Forty-nine HIV-infected patients on NVP were included (53% men, 59% Caucasian). NVP plasma levels were correlated with HDL-cholesterol (Spearman r=0.2631; p=0.0441) and ApoA1 (Spearman r=0.3907; p=0.0115). Women had higher ApoA1 levels than men (Student's t Test; p=0.0051). In both sexes, 12-hydroxy-NVP levels were negatively correlated with ApoA1 (male: Spearman r=-0.3810; p=0.0499 female: Spearman r=-0.5944; p=0.0415). In men, ApoA1 was positively correlated with aspartate aminotransferase (AST, Spearman r=0.5507; p=0.0413), while in women ApoA1 was associated (Spearman r=0.6408; p=0.0056) with alanine aminotransferase (ALT). These results show sex differences in NVP-induced ApoA1 synthesis. The higher ApoA1 levels in women might stabilize SULT2B1 [6]. This would explain the lower levels of 12-hydroxy-NVP [3] and the higher hepatotoxicity found in women, due to increased sulfonation of this metabolite. These data support a role for ApoA1 in the sex dimorphic mechanism leading to NVP-induced toxicity.

19.
Antivir Ther ; 18 Suppl 2: 45-52, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23784724

RESUMO

The average age at which women are first diagnosed with HIV is increasing and, due to advances in antiretroviral therapy (ART), women are living with HIV for longer. Once regarded as a fatal disease of young males, HIV is now considered a lifelong chronic condition affecting both men and women into older age. This raises questions for the long-term management of women living with HIV in Europe, such as how age affects the ART response, what the consequences are of long-term ART, and whether the comorbidities of ageing and menopause are different in women with HIV compared with men or uninfected women. Non-AIDS-related events, such as cancer, are increasingly responsible for the deaths of women with HIV, and European guidelines now recommend that they undergo regular screening for breast, cervical and colorectal cancer, and vaccination for human papillomavirus. The other major outcome of the greater life expectancy of women living with HIV is that a greater number are reaching menopause. Some studies suggest that HIV infection is linked with earlier onset of menopause and altered menopausal symptomatology. Many questions remain, and there is a need for more studies addressing ageing and sustained ART use in women living with HIV in Europe.


Assuntos
Infecções por HIV/epidemiologia , Sobreviventes de Longo Prazo ao HIV/estatística & dados numéricos , Saúde da Mulher/estatística & dados numéricos , Adolescente , Adulto , Fatores Etários , Fármacos Anti-HIV/uso terapêutico , Doença Crônica , Comorbidade , Europa (Continente)/epidemiologia , Feminino , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Disparidades nos Níveis de Saúde , Disparidades em Assistência à Saúde/estatística & dados numéricos , Humanos , Expectativa de Vida , Masculino , Pessoa de Meia-Idade , Gravidez , Fatores de Risco , Fatores Sexuais , Fatores de Tempo , Resultado do Tratamento , Serviços de Saúde da Mulher/estatística & dados numéricos , Adulto Jovem
20.
Clin Drug Investig ; 33 Suppl 1: S23-6, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23381980

RESUMO

Lung infections caused by invasive filamentous fungi are very rare conditions in AIDS, but must be considered in patients with profound immune suppression especially in the presence of additional risk factors, such as hematologic malignancies, corticosteroid therapy, neutropenia, and chemotherapy. The authors report a case of dual lung infection caused by Aspergillus and Mucor, which occurred in a 34-year-old AIDS patient who was treated with chemotherapy for oral plasmablastic lymphoma. The case presented clinically with low grade fever and pulmonary cavitation, which suggested tuberculosis. After extensive investigation the diagnosis of mucormycosis was established and the patient was treated sequentially with liposomal amphotericin B and posaconazole. Despite a reduction in the size of the pulmonary cavitation, improvement of the lung interstitial infiltrates and clinical recovery, the patient was submitted to cardiothoracic surgery given the aggressive behavior of this invasive fungus. Histology of the surgical specimen showed numerous hyphae with a morphologic pattern compatible with Aspergillus as well as hyphae that were suggestive of Mucor.


Assuntos
Aspergillus , Infecções por HIV , Mucor , Mucormicose/diagnóstico , Aspergilose Pulmonar/diagnóstico , Adulto , Feminino , Infecções por HIV/complicações , Infecções por HIV/cirurgia , Infecções por HIV/virologia , Humanos , Mucormicose/microbiologia , Mucormicose/cirurgia , Aspergilose Pulmonar/microbiologia , Aspergilose Pulmonar/cirurgia
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