HIV-Associated Lipodystrophy Syndrome

  • 文章类型: Journal Article
    背景:HIV相关的脂肪肥大,其特征是腹部内脏脂肪组织的异常积累,在艾滋病毒感染者中仍然存在问题。缺乏有效的干预措施,尽管HIV相关的脂肪肥大携带心脏代谢合并症的重大风险。该试验的主要目的是研究GLP-1受体激动剂的作用。塞马鲁肽,与HIV相关的脂肪肥大的脂肪组织。
    方法:这是随机的,双盲,安慰剂对照的2b期临床试验在美国的一个研究中心进行.主要纳入标准包括18岁或以上的HIV感染者,HIV-1得到控制,BMI为25kg/m2或以上,和脂肪肥大,但没有1型或2型糖尿病。参与者被随机分配为1:1,接受32周的每周一次皮下semaglutide(8周剂量滴定和24周1·0mg)或安慰剂;所有研究人员和参与者对治疗分配保持掩盖。主要结果是在32周时,身体区室脂肪组织数量的变化。分析,包括安全,使用意向治疗原则进行。该试验已注册ClinicalTrials.gov(NCT04019197),已完成。
    结果:在2019年6月10日至2022年7月28日之间,108名参与者被随机分配接受司马鲁肽(n=54)或安慰剂(n=54)。每组有8人(15%)过早退出。在32周的研究期间,在主要结局的性别调整乘性回归分析中观察到司马鲁肽的显着影响。腹部内脏脂肪组织(β-30·82cm2,95%CI-50·13至-11·51;%变化-30·6%)。其他关键措施也有所减少,包括腹部皮下脂肪组织(β-42·01cm2,95%CI-75·49至-8·52;%变化-11·2%)和总体内脂肪(自然对数-0·21kg,95%CI-0·33至-0·08;%变化-18·9%)。可能相关或相关的不良事件无统计学差异(绝对风险差异0·1111,95%CI-0·0727至0·2869);然而,观察到1例司马鲁肽相关的4级脂肪酶升高和2例可能相关的胆石症病例(1级和2级)。
    结论:塞马鲁肽有望成为治疗HIV相关脂肪肥大的有效药物。严重不良事件的潜在风险值得在艾滋病毒感染者的大型试验中进一步审查。
    背景:美国国立卫生研究院。
    BACKGROUND: HIV-associated lipohypertrophy, which is characterised by an abnormal accumulation of abdominal visceral adipose tissue, remains problematic in people with HIV. Effective interventions are lacking, despite HIV-associated lipohypertrophy carrying a substantial risk of cardiometabolic comorbidity. The primary aim of this trial was to investigate effects of the GLP-1 receptor agonist, semaglutide, on adipose tissue in HIV-associated lipohypertrophy.
    METHODS: This randomised, double-blind, placebo-controlled phase 2b clinical trial was conducted at a single US site. Key inclusion criteria included people with HIV aged 18 years or older with controlled HIV-1, a BMI of 25 kg/m2 or more, and lipohypertrophy but without type 1 or type 2 diabetes. Participants were randomly assigned 1:1 to receive 32 weeks of once-weekly subcutaneous semaglutide (8-week dose titration and 24 weeks at 1·0 mg) or placebo; all research personnel and participants remained masked to treatment assignment. Primary outcomes were changes at 32 weeks in adipose tissue quantity by body compartment. Analyses, including safety, were performed using intention-to-treat principles. This trial was registered ClinicalTrials.gov (NCT04019197) and is complete.
    RESULTS: Between June 10, 2019, and July 28, 2022, 108 participants were randomly assigned to receive semaglutide (n=54) or placebo (n=54). Eight (15%) in each group withdrew prematurely. Significant effects of semaglutide were seen over the 32-week study period in sex-adjusted multiplicative regression analyses for the primary outcome, abdominal visceral adipose tissue (β -30·82 cm2, 95% CI -50·13 to -11·51; % change -30·6%). Decreases were also seen in other key measures, including abdominal subcutaneous adipose tissue (β -42·01 cm2, 95% CI -75·49 to -8·52; % change -11·2%) and total body fat (natural logarithmic -0·21 kg, 95% CI -0·33 to -0·08; % change -18·9%). There were no statistically significant differences in possibly related or related adverse events (absolute risk difference 0·1111, 95% CI -0·0727 to 0·2869); however, one semaglutide-related grade 4 elevated lipase and two possibly related cases of cholelithiasis (grades 1 and 2) were observed.
    CONCLUSIONS: Semaglutide holds promise as an effective treatment for HIV-associated lipohypertrophy. The potential risk of serious adverse events deserves further scrutiny in large trials in people with HIV.
    BACKGROUND: National Institutes of Health.
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  • 文章类型: Journal Article
    这项研究的目的是表征和比较在皮下脂肪的变化,在接受抗逆转录病毒治疗的HIV感染患者队列中,肱和脚区域。这项前瞻性纵向研究包括从2007年和2008年评估的初始队列中选择的77名患者。我们检查了至少五年内通过超声测量的脂肪萎缩的可逆性以及与其可逆性相关的因素。所有使用司他夫定的46例患者都从司他夫定切换到另一种组合。在服用齐多夫定的58例患者中,在第二次随访时,16人(28%)采用基于齐多夫定的方案。有证据表明,小腿区皮下脂肪增加(p<0.001),而肱和小腿区没有增加。与其他患者相比,吸烟者和坚持地中海饮食的患者在随访测量中的小腿面积较薄(p=0.030),皮下小腿脂肪的增加较小(p=0.040)。我们的研究表明,面部皮下脂肪的适度增加与停止司他夫定和较少使用齐多夫定同时发生。不遵守地中海饮食和吸烟的生活方式与皮下脂肪的较小增加有关。
    The aim of this study was to characterize and compare changes in subcutaneous fat in the malar, brachial and crural region in a cohort of HIV-infected patients taking antiretroviral therapy. This prospective longitudinal study included 77 patients who were selected from the initial cohort evaluated in 2007 and 2008. We examined reversibility of lipoatrophy measured by ultrasound over at least five-year period and factors related to its reversibility. All 46 patients who used stavudine switched from stavudine to another combination. Of 58 patients on zidovudine, 16 (28%) were on a zidovudine based regimen at the second follow up. There was evidence for subcutaneous fat increase in the malar area (p<0.001) and no increase in the brachial and crural areas. Patients who were smokers and had poor adherence to the Mediterranean diet had a thinner malar area at the follow up measurement (p=0.030) and smaller increase in subcutaneous malar fat compared to others (p=0.040). Our study suggested that modest increase of subcutaneous fat in malar area coincided with stopping stavudine and fewer usage of zidovudine. Lifestyle with non-adherence to the Mediterranean diet and smoking were associated with a smaller increase in subcutaneous malar fat.
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  • 文章类型: Journal Article
    The use of antiretroviral drugs has increased the survival of HIV patients, but may have side effects, such as lipodystrophic syndrome. This article aims to identify the frequency of the lipodystrophic syndrome and its associated factors in patients with HIV using antiretroviral therapy. It involved a cross-sectional study with HIV patients, monitored on an outpatient basis. The syndrome was evaluated by the association of two parameters: peripheral weight loss through the lipodystrophy severity scale and central fat accumulation, measured by the hip waist ratio. Poisson regression analysis was performed to identify the associated variables. Of the 104 patients evaluated, 27.9% presented the syndrome. After adjustment, the female sex (PRadjusted = 2.16 CI95% 1.43-3.39), being overweight (PRadjusted = 2.23 CI95% 1.35-2.65) and a longer period of use of antiretrovirals (PRadjusted = 1.64 CI95% 1.16-2.78), remained positively associated with the syndrome. On the other hand, a negative association with CD4 count £ 350 (PRadjusted = 0.39 CI95% 0.10-0.97) was observed The high prevalence of the syndrome and its association with specific groups reinforce the need for adequate follow-up and early identification to intervene in modifiable factors.
    O uso de antirretroviral aumentou a sobrevida dos portadores do HIV, porém pode acarretar efeitos colaterais, como a síndrome lipodistrófica. O objetivo deste artigo é identificar a frequência da síndrome lipodistrófica e seus fatores associados em pacientes portadores do HIV em uso de terapia antiretroviral. Estudo transversal com pacientes acompanhados ambulatorialmente. A síndrome foi avaliada pela associação de dois parâmetros: emagrecimento periférico através da escala de gravidade de lipodistrofia e acúmulo de gordura central, mensurado pela relação cintura quadril. Para identificar as variáveis associadas foi realizada a análise de Regressão de Poisson. Dos 104 pacientes avaliados, 27,9% apresentaram a síndrome. Após ajuste, ser do sexo feminino (RPajustada = 2,16 IC95%1,43-3,39), ter excesso de peso (RPajustada = 2,23 IC95%1,35-2,65) e um maior tempo de uso dos antirretrovirais (RPajustada = 1,64 IC95%1,16-2,78) permaneceram positivamente associados à síndrome. Por outro lado, foi observada uma associação negativa com a contagem de CD4 £ 350 (RPajustada = 0,39 IC95%0,10-0,97). A alta prevalência da síndrome e sua associação com grupos específicos reforçam a necessidade do adequado acompanhamento e identificação precoce como forma de intervir nos fatores modificáveis.
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  • 文章类型: Journal Article
    UNASSIGNED: Introduction: currently, there is no consensus regarding accurate and low-cost methods for diagnosing lipodystrophy in people living with HIV/AIDS (PLWHA). The aim of this study was to propose anthropometric cutoff points for the diagnosis of lipodystrophy among PLWHA. Methods: we included 106 PLWHA (men = 65, women = 41) who are under antiretroviral therapy and have been clinically classified into either a \"lipodystrophy\" or \"non-lipodystrophy\" group. Anthropometric measurements included 19 regions of body perimeters and 6 skinfold thickness measures. The Youden index was used to establish anthropometric cutoff points for the diagnosis of lipodystrophy, using the mean values of the anthropometric data (referred to as \"original\") along with the \"Z index\" (ZI) values, which were adjusted by the \"Phantom Strategy.\" The cutoff points were proposed when \"original\" anthropometric measurements and ZI values had a statistical significance of p < 0.01 and an area under the curve (AUC) higher than 70%. The size effect was assessed to verify the influence of lipodystrophy on each anthropometric measure. Results: our data analysis proposes sex-specific cutoff points for the diagnosis of lipodystrophy in PLWHA - 17 points using the \"original\" anthropometric measurements, and 20 using the ZI values (average effect size between 1.0 and 1.1, and AUC = 76.7% and 78%). Conclusions: our study proposes accurate cutoff points for the diagnosis of lipodystrophy using \"original\" anthropometric measurements and ZI values adjusted by the \"Phantom Strategy.\" Our findings support the use of anthropometric measurements as a simplified method for diagnosing lipodystrophy and monitoring body composition alterations in people living with HIV/AIDS.
    UNASSIGNED: Introducción: no existe consenso con respecto a métodos precisos y de bajo coste para diagnosticar la lipodistrofia en personas que viven con VIH/SIDA (PVVS). El objetivo de este estudio es proponer puntos de corte antropométricos para el diagnóstico de lipodistrofia entre las PVVS. Métodos: se incluyeron 106 PVVS (hombres = 65, mujeres = 41) en tratamiento antirretroviral que se clasificaron clínicamente en dos grupos de \"lipodistrofia\" o \"no lipodistrofia\". Las mediciones antropométricas incluyeron 19 regiones de parámetros corporales y 6 medidas de pliegues cutáneos. El índice de Youden se utilizó para establecer puntos de corte antropométricos para el diagnóstico de lipodistrofia utilizando la media de los datos antropométricos (denominados \"originales\") junto con los valores del \"índice Z\" (IZ), que fueron ajustados por la \"estrategia Phantom\". Los puntos de corte se propusieron cuando las mediciones antropométricas \"originales\" y los valores de IZ fueron estadísticamente significativos con un valor p < 0,01 y un área bajo la curva (AUC) superior al 70%. Se evaluó el tamaño del efecto para verificar la influencia de la lipodistrofia en cada medida antropométrica. Resultados: se propusieron puntos de corte específicos según el sexo para el diagnóstico de lipodistrofia en PVVS: 17 puntos usando las medidas antropométricas \"originales\" y 20 usando los valores de IZ (tamaño del efecto promedio entre 1.0 y 1.1, y AUC = 76.7% y 78%). Conclusiones: se propusieron puntos de corte antropométricos para el diagnóstico de lipodistrofia. Las mediciones antropométricas son un método simplificado para diagnosticar y monitorear los cambios de composición corporal en las PVVS.
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  • 文章类型: Journal Article
    Dyslipidemia represents a significant non-infectious comorbidity among people living with HIV. The aim of this study is to evaluate the impact on lipid profile of switches from an efavirenz (EFV) or protease inhibitor/ritonavir (PI/r)-based regimen to a rilpivirine (RPV) or a once-daily integrase inhibitor-based regimen.
    We analyzed data from SCOLTA prospective database. All patients with HIV-RNA < 50 copies/ml in therapy with two NRTI + EFV or PI/r were included if they switched from EFV to dolutegravir (group EFV-DTG), elvitegravir (EFV-EVG), or RPV (EFV-RPV) and from PI/r to DTG (PI/r-DTG), PI/r to EVG (PI/r-EVG), or PI/r to RPV (PI/r-RPV). Total cholesterol (TC), TC/HDL ratio, LDL-cholesterol (LDL) and triglycerides (TG) were compared at baseline, six months and one year. Comparisons among groups were performed by a general linear model.
    Four hundred and ninety patients were enrolled, 24.9% female, mean age 47.3 years (±10.1). According to ART switch, 11.4% were classified in group EFV-DTG, 3.9% in EFV-EVG, 23.9% in EFV-RPV, 17.6% in PI/r-DTG, 17.8% in PI/r-EVG, and 25.5% in PI/r-RPV. After adjusted analysis, TC significantly decreased in all groups but EFV-EVG, TC/HDL in all but EFV-DTG and EFV-EVG, while the reduction of TG was significant only in switches to RPV (EFV-RPV and PI/r-RPV). The one year decrease of TC, TC/HDL, LDL and TG was higher in patients with higher baseline levels of the same variable (p < .0001 for all).
    In SCOLTA, all switches from PI/r regimens gave advantages on lipid profile, while stopping EFV had consistently favorable lipid effects only if replaced by RPV.
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  • 文章类型: Letter
    暂无摘要。
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  • 文章类型: Clinical Trial
    The objective of this study was to evaluate and compare the safety and effectiveness of four different dermal fillers in the treatment of facial lipoatrophy secondary to human immunodeficiency virus.
    The authors conducted a clinical trial including 147 patients suffering from human immunodeficiency virus-induced lipoatrophy treated with Sculptra (poly-L-lactic acid), Radiesse (calcium hydroxylapatite), Aquamid (polyacrylamide), or autologous fat. Objective and subjective changes were evaluated during a 24-month follow-up. Number of sessions, total volume injected, and overall costs of treatment were also analyzed. A comparative cost-effectiveness analysis of the treatment options was performed.
    Objective improvement in facial lipoatrophy, assessed by the surgeon in terms of changes from baseline using the published classification of Fontdevila, was reported in 53 percent of the cases. Patient self-evaluation showed a general improvement after the use of facial fillers. Patients reported being satisfied with the treatment and with the reduced impact of lipodystrophy on their quality of life. Despite the nonsignificant differences observed in the number of sessions and volume, autologous fat showed significantly lower costs than all synthetic fillers (p < 0.05).
    Surgical treatment of human immunodeficiency virus-associated facial lipoatrophy using dermal fillers is a safe and effective procedure that improves the aesthetic appearance and the quality of life of patients. Permanent fillers and autologous fat achieve the most consistent results over time, with lipofilling being the most cost-effective procedure.
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  • 文章类型: Case Reports
    The development of antiretroviral (ARV) drugs to treat HIV has turned what was once a death sentence into a chronic disorder. However, a focus on absence of disease in the form of an undetectable viral load and the dismissal of the so-called \"cosmetic\" complications of the disease ignores perceptions of health and well-being of those living with HIV. Facial lipoatrophy is a stigmatising side effect of treatment for HIV as it betrays the presence of the virus within the body. The study took a longitudinal qualitative approach, interviewing 11 people twice over a period of 1 year on their experience of living with HIV. Two participants were given cameras and asked to take photos which represented what it was like for them to live with this condition and were interviewed four times at four monthly intervals. This paper looks at one man\'s struggle to conceal or veil his facial lipoatrophy. His story is presented in the form of \"selfies\" and extracts from in-depth interviews. It tells of an emotional (ongoing) journey of frustration, anger, excitement, depression and resignation which had a profound effect on his sense of social and psychological well-being. This suggests a more holistic approach to treating people living with HIV is needed. While an undetectable viral load is indeed vital, it should not be seen as the only essential outcome of treatment.
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  • 文章类型: Journal Article
    BACKGROUND: Antiretroviral therapy (ART) improves the survival and quality of life of HIV-positive individuals, but the effects of long-term ART use do eventually manifest. The Complications of Long-Term Antiretroviral Therapy cohort study in Uganda (CoLTART) was established to investigate the metabolic and renal complications of long-term ART use among Ugandan adults. We describe the CoLTART study set-up, aims, objectives, study methods, and also report some preliminary cross-sectional study enrolment metabolic and renal complications data analysis results.
    METHODS: HIV-positive ART naïve and experienced adults (18 years and above) in Uganda were enrolled. Data on demographic, dietary, medical, social economic and behaviour was obtained; and biophysical measurements and a clinical examination were undertaken. We measured: fasting glucose and lipid profiles, renal and liver function tests, full blood counts, immunology, virology and HIV drug resistance testing. Plasma samples were stored for future studies.
    RESULTS: Between July 2013 and October 2014, we enrolled 1095 individuals, of whom 964 (88.0%) were ART experienced (6 months or more), with a median of 9.4 years (IQR 7.0-9.9) on ART. Overall, 968 (88.4%) were aged 35 years and above, 711 (64.9%) were females, 608 (59.6%) were or had ever been on a Tenofovir ART regimen and 236 (23.1%) on a Protease Inhibitor (PI) regimen. There were no differences in renal dysfunction between patients on Tenofovir and Non-Tenofovir containing ART regimens. Patients on PI regimens had higher total cholesterol, lower high density lipoprotein, higher low density lipoprotein, higher triglycerides, and a high atherogenic index for plasma than the non-PI regimen, p = 0.001 or < 0.001. Patients on Non-PI regimens had higher mean diastolic hypertension than patients on PI regimens, p < 0.001.
    CONCLUSIONS: Our finding of no differences in renal dysfunction between patients on Tenofovir and those on Non-Tenofovir containing ART regimens means that Tenofovir based first line ART can safely be initiated even in settings without routine renal function monitoring. However, integration of cardiovascular risk assessment, preventive and curative measures against cardiovascular disease are required. The CoLTART cohort is a good platform to investigate the complications of long-term ART use in Uganda.
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