The effects of an ActRIIb receptor Fc fusion protein ligand trap in juvenile simian immunodeficiency virus-infected rhesus macaques.

There are no approved therapies for muscle wasting in children infected with human immunodeficiency virus (HIV), which portends poor disease outcomes. To determine whether a soluble ActRIIb receptor Fc fusion protein (ActRIIB.Fc), a ligand trap for TGF-ß/activin family members including myostatin, can prevent or restore loss of lean body mass and body weight in simian immunodeficiency virus (SIV)-infected juvenile rhesus macaques (Macaca mulatta). Fourteen pair-housed, juvenile male rhesus macaques were inoculated with SIVmac239 and, 4 wk postinoculation (WPI) treated with intramuscular injections of 10 mg ⋅ kg(-1) ⋅ wk(-1) ActRIIB.Fc or saline placebo. Body weight, lean body mass, SIV titers, and somatometric measurements were assessed monthly for 16 wk. Age-matched SIV-infected rhesus macaques were injected with saline. Intervention groups did not differ at baseline. Gains in lean mass were significantly greater in the ActRIIB.Fc group than in the placebo group (P < 0.001). Administration of ActRIIB.Fc was associated with greater gains in body weight (P = 0.01) and upper arm circumference than placebo. Serum CD4(+) T-lymphocyte counts and SIV copy numbers did not differ between groups. Administration of ActRIIB.Fc was associated with higher muscle expression of myostatin than placebo. ActRIIB.Fc effectively blocked and reversed loss of body weight, lean mass, and fat mass in juvenile SIV-infected rhesus macaques.

Global nutrition policy review: What does it take to scale up nutrition action?

Este informe presenta los actuales desafíos globales de nutrición, sobre la base de datos de diversas fuentes, incluyendo bases de datos existentes de nutrición mundiales de la OMS está administrado por el Departamento de Nutrición para la Salud y el Desarrollo, los métodos y los principales resultados de la Revisión de la Política Global de Nutrición, mostrando el alcance de la política y la ejecución de los programas y la gestión nutricional en 119 Estados Miembros de la OMS y 4 territorios que proporciona respuestas , las conclusiones sumarias y el camino a seguir. Aunque los países tienen diferentes preocupaciones nutricionales, algunas intervenciones son relevantes a nivel mundial; por ejemplo, los que se ocupan de la "ventana de oportunidad" desde el embarazo hasta los 2 años de edad, como la lactancia materna óptima y las prácticas adecuadas de alimentación complementaria. Debido a que muchos países de una región tienen problemas de nutrición similares, los datos están desglosados por regiones en la mayoría de las partes del informe. El informe también incluye una evaluación de lo bien actual políticas y programas relacionados con la nutrición se encuentran los problemas de nutrición que se enfrentan los países, y de la política y la gobernanza para la ampliación de las actividades de nutrición. La comunidad internacional debe comprender los desafíos en la implementación de la nutrición políticas y programas con el fin de prestar apoyo a las áreas de mayor necesidad y las áreas donde serán más efectivos. Entender "el paisaje de nutrición" y su "arquitectura" en los países, y la identificación de las formas de superar los desafíos, se asegurará el uso eficaz de los recursos. Este informe está dirigido a las partes interesadas que están trabajando con los países para aplicar políticas y programas de nutrición; incluidos los organismos internacionales y bilaterales, organizaciones no gubernamentales (ONG), la sociedad civil y el sector privado.

Macronutrient supplementation for malnourished HIV-infected adults: a review of the evidence in resource-adequate and resource-constrained settings.

Access to antiretroviral therapy (ART) for human immunodeficiency virus (HIV) infection has expanded rapidly throughout sub-Saharan Africa, but malnutrition and food insecurity have emerged as major barriers to the success of ART programs. Protein-calorie malnutrition (a common form of malnutrition in the region) hastens HIV disease progression, and food insecurity is a barrier to medication adherence. Analyses of patient outcomes have identified a low body mass index after the start of ART as an independent predictor of early mortality, but the causes of a low body mass index are multifactorial (eg, normal anthropometric variation, chronic inadequate food intake, and/or wasting associated with HIV infection and other infectious diseases). Although there is much information on population-level humanitarian food assistance, few data exist to measure the effectiveness of macronutrient supplementation or to identify individuals most likely to benefit. In this report, we review the current evidence supporting macronutrient supplementation for HIV-infected adults, we report on clinical trials in resource-adequate and resource-constrained settings, and we highlight priority areas for future research.

Body mass index and nutritional intake in patients with HIV and chronic diarrhea: a secondary analysis.

PURPOSE: The purpose of this study was to examine the differences in nutritional intake and body mass index (BMI) in HIV patients with chronic diarrhea via secondary analysis of patients' nutritional diaries. A secondary purpose was to evaluate the quality of diets against national dietary guidelines. DATA SOURCES: Seventy-five ambulatory patients with HIV were included in this study. Patients were categorized using baseline BMI as normal weight (BMI 18.5-24.9 kg/m2), overweight (BMI 25.0-29.9 kg/m2), and obese (BMI >or=30.0 kg/m2). Seven-day nutritional diaries were used to estimate diet in terms of dietary fats, cholesterol, fiber, protein, and sugar. A one-way analysis of variance was conducted to evaluate the relationship between BMI and mean nutritional intake from fat, saturated fat, polyunsaturated fat, monounsaturated fat, cholesterol, fiber, and sugar. CONCLUSIONS: 39.7% and 13.3% of participants were overweight and obese, respectively. The mean intake of fat, saturated fat, and cholesterol was higher than the recommended levels by the National Cholesterol Education Program (NCEP), while the mean intake of monounsaturated fat, polyunsaturated fat, and fiber was below the NCEP guideline. Although the results were not statistically different between groups, grams of fiber intake were lowest for individuals with BMI >or=30.0 kg/m2. IMPLICATIONS FOR PRACTICE: Advanced practice nurses should encourage increased physical activity and healthy diets at each visit for individuals living with HIV. The continued use of nutritional supplements to boost weight should also be reviewed at each visit to prevent the consumption of unnecessary calories.

Vitamin supplements, socioeconomic status, and morbidity events as predictors of wasting in HIV-infected women from Tanzania.

BACKGROUND: Wasting is a strong independent predictor of mortality in HIV-infected persons. Vitamin supplements delay the disease progression, but their effect on wasting is not known. Data are lacking on the risk factors for wasting in African HIV-infected persons. OBJECTIVES: The objectives were to examine the effect of vitamin supplements on wasting in HIV-infected women and to assess the effects of sociodemographic characteristics, morbidity events, and immunologic progression on the risk of wasting. DESIGN: HIV-infected women (n = 1078) from Tanzania were randomly assigned to receive 1 of 4 daily oral regimens: multivitamins (B complex, C, and E), vitamin A plus beta-carotene, multivitamins that included vitamin A plus beta-carotene, or placebo. The endpoints of the study included first episodes of a midupper arm circumference <22 cm or a body mass index (BMI; in kg/m2) <18 and the incidence of weight loss episodes during a median 5.3 y of follow-up. RESULTS: Multivitamins alone significantly reduced the risk of a first episode of a midupper arm circumference <22 cm (relative risk: 0.66; 95% CI: 0.47, 0.94; P = 0.02). In multivariate-adjusted Cox models, the woman's age, education level, and height were inversely related to the incidence of wasting. Episodes of diarrhea, nausea or vomiting, lower respiratory tract infections, oral ulcers, thrush, severe anemia, and low CD4+ cell counts were each significantly related to an increased risk of wasting. CONCLUSIONS: Vitamins C and E and the vitamin B complex have a protective effect on wasting in HIV-infected women. Prevention of diarrhea, severe respiratory tract infections, and anemia are likely to decrease the burden of wasting.

Effects of different types of exercise on body composition and fat distribution in HIV-infected patients: a brief review.

HIV infection and its treatment is associated with unfavourable metabolic and morphological abnormalities. These metabolic abnormalities, particularly alterations in body composition and fat distribution, may increase the risk for cardiovascular and metabolic complications, as well as reduce functional independence and lower self-esteem. Thus there is an urgent need to develop interventions intended to manage secondary side effects of HIV or antiretroviral therapy-related complications. In poly-treated patients, nonpharmacological interventions are a logical first step. Exercise training in particular may help alleviate some of the metabolic adverse effects associated with antiretroviral therapy by favourably altering body composition and patterns of body fat distribution. Studies have shown that exercise training, particularly aerobic training, can help reduce total body and visceral fat, as well as normalizing lipid profiles in HIV-infected patients. The results for resistance training, however, are less conclusive. Knowledge of the use of resistance and aerobic training and its attendant effects on insulin resistance and adipocytokines may represent an effective nonpharmacologic means for treating metabolic complications of HIV-infected persons who are receiving appropriate antiretroviral therapy. In this brief review we examine the effects of aerobic and resistance training on body composition, body fat distribution, and selected metabolic outcomes.

Comparison of standard and immune-enhancing oral formulas in asymptomatic HIV-infected persons: a multicenter randomized controlled clinical trial.

BACKGROUND: Both standard and immune-enhancing oral formulas are widely used to forestall HIV wasting and to promote immune function. However, there is little scientific evidence to support the differential effects of these formulas in asymptomatic HIV disease. The aim of this study was to compare the effects of an immune-enhancing oral formula and a standard oral formula on nutrition and immune measures in asymptomatic HIV-infected persons. A secondary aim was to evaluate the feasibility of maintaining a diverse sample of outpatients on a long-term oral formula protocol. METHODS: In this multicenter controlled nonblinded study, 90 asymptomatic HIV-infected persons with CD4 cell counts between 275 and 550 cells/mm3 were randomized to a control group; a standard oral formula group (Ensure Plus); or an immune-enhancing oral formula group (Advera). All groups received basic nutrition counseling. Participants were evaluated on nutrition, immune, and feasibility measures at 3-month intervals during the 12-month study period. Differences in nutrition and immune measures among the 3 groups were analyzed using the Kruskal-Wallis and Wilcoxon tests. Wilcoxon tests and correlation coefficients were used to analyze feasibility data. RESULTS: Sixty-six outpatients completed the 12-month study protocol. Among the 3 groups, there were no significant differences with respect to body weight, bioelectrical impedance analysis (BIA)-derived body cell and fat mass, daily caloric intake, and serum albumin at any of the study visits. Moreover, absolute CD4+ T lymphocytes and percentages did not significantly differ at any time point among the 3 groups. Acceptability and tolerance of the formulas were high for both the standard and immune-enhancing oral formula groups. CONCLUSIONS: Within the context and limitations of this study, standard and immune-enhancing oral formulas consumed daily for 1 year had no differential effects on nutrition or immune parameters in asymptomatic HIV-infected persons.

HIV-associated wasting in the HAART era: guidelines for assessment, diagnosis, and treatment.

Wasting (malnutrition) and lipodystrophy are the two major nutritional alterations in human immunodeficiency virus (HIV)-infected individuals. Both wasting and lipodystrophy may involve a decrease in body fat content, while wasting-but not lipodystrophy-also includes the loss of lean body mass. Lipodystrophy has made the identification of wasting increasingly more difficult. The diagnosis of wasting depends on a definition of the condition that takes into account sex and cultural differences, as well as measurements of body cell mass. Patient management involves a concurrent, comprehensive approach designed to restore lost body cell mass and weight. The authors make recommendations for defining, diagnosing, and treating HIV-associated wasting. Specific therapies include testosterone replacement, other anabolic steroids, and recombinant human growth hormone. Other adjunctive measures, such as progressive resistance exercise and cytokine modulation, may also be utilized. Expected outcomes from effective treatment include restored body cell mass, improvement in quality of life, and reduced rates of hospitalization. Future directions for research should address the need for optimal treatment strategies.

Nutritional status, symptoms experienced and general state of health in HIV-infected patients.

The aim of the study was to describe HIV-infected patients with respect to nutritional status, symptoms experienced, general state of health, and relevant medical and laboratory data. An additional aim was to study the relationships between some of these variables. On admission to an acute care hospital in Sweden, 25 HIV-positive men were consecutively included in the study. Medical data, anthropometric variables such as weight, height, body mass index (BMI) and percentage weight loss were studied. The following instruments were used: the subjective global assessment (SGA) was used to determine nutritional status; the oral assessment guide (OAG) was used for subjective assessment of the oral cavity; and the numeric rating scale (NRS) was used to assess the symptoms experienced. The Health Index (HI) was used to evaluate general state of health. The results showed that more than half of the patients had suspected/severe malnutrition; between 48% and 72% complained of moderate to severe symptoms of various kinds. Two thirds felt their general state of health was rather poor or very poor. Correlations showed that the lower the BMI, the worse the nutritional status (SGA); the greater the weight loss in percent, the worse the nutritional status (SGA); and the worse the general state of health (HI), the worse the nutritional status (SGA). In conclusion, it is important that nurses have good knowledge concerning nutritional problems in order to be able to detect these conditions at an early stage and/or to endeavour to prevent them.

An approach to the medical marijuana controversy.

The use of smoked marijuana as a therapeutic agent is presently a matter of considerable debate in the United States. Many people suffering from a variety of disorders maintain that it is necessary for their adequate treatment. Yet, the evidence to support claims is insufficient for FDA approval. An interim solution is proposed which would allow patients referred by their physicians to participate in a 6-month program of legal marijuana availability, similar to the 'compassionate IND' program of a number of years ago. A technique similar to that used for post-marketing surveillance is proposed for obtaining quantitative data for a limited number of potential indications. These are: (1) nausea and vomiting associated with cancer chemotherapy or other causes, (2) weight loss associated with debilitating illnesses, (3) spasticity secondary to neurological diseases, and (4) chronic pain syndromes.

[Prevention of wasting and opportunistic infections in HIV-infected patients in West Africa: a realistic and necessary strategy before antiretroviral treatment]. / Prévention de la dénutrition et des infections opportunistes chez lespatients infectés par le VIH en Afrique de l'Ouest: une démarche réaliste, nécessaire, préalabe aux antirétroviraux.

The medical inequalities between countries of the North and South (infrastructure, drug availability, medical techniques) are particularly marked in terms of the challenge posed by HIV infection. We propose a strategy for monitoring adult patients in West Africa that is appropriate to the situation in the field and to economic constraints. The aim of this strategy is to increase the quality of life and the life expectancy of HIV-infected adults and to prevent the overcrowding of hospital departments with patients in the terminal phase of AIDS. We analyzed the biological and clinical spectrum of HIV infection before the onset of the diseases that define AIDS (excluding pulmonary tuberculosis). We found that it was particularly important to diagnose B-stage diseases early, especially atypical chronic cutaneous and mucous diseases. Careful analysis of data from a routine hemogram (total lymphocyte count 2500/ml; paradoxical eosinopenia), even in the absence of a CD4 lymphocyte count, should also enable clinicians from a wide variety of health structures to identify the HIV-infected patients most likely to benefit from more detailed clinical follow up, prophylaxis of opportunistic infections using cotrimoxazole, nutritional checkups and prevention of wasting. Cachexia is the most common AIDS-associated disease in West African patients. It involves an overall decrease in calorific intake, diarrhea, immune system activation, an increase in TNFalpha production and greater energy expenditure when resting. Recent nutritional studies have shown that it is vital to optimize the calorific intake of HIV-infected patients presenting with chronic diarrhea, before the onset of severe immune deficiency, to prevent wasting. So, spontaneous calorific intake should de routinely determined in HIV-infected patients and an optimal diet provided. Specific training in nutrition is required for doctors and nurses, as is consideration of the logistic organization required to provide nutritional support to HIV-infected adults. Despite the large number of individuals infected and the lack of sophisticated paraclinical facilities, we feel that it is possible to establish rational management "a minima" of HIV infection in West Africa, whilst waiting for antiretroviral drugs to become more widely available. This strategy could be of direct benefit to patients without swallowing up the financial resources of the health system in expensive biological follow up. Such basic management is also required before the new antiretroviral drugs become widely available. Research should be carried out in parallel in several reference centers in West Africa to determine the most effective associations of antiretroviral drugs and the optimal timing of treatment during the course of infection and to assess the potential side effects of these drugs in HIV patients exposed to recurrent antigenic stimulation by a wide diversity of pathogens.

Testosterone cream still available.

AIDS: While manufacturing problems have kept testosterone injections off the market for months, testosterone cream is still available by prescription. Mark Hoffman reports that the cream is odorless, tasteless, and does not sting. The cream does not result in the highs and lows patients experience with the testosterone injections, and the cream is estimated to have an absorption rate from 25 to 60 percent per person. The cream is a good alternative for people for whom testosterone patches do not work well. Testosterone cream can be ordered through the mail from the Women's International Pharmacy. Contact information is provided.^ieng

[HIV infection. Dietetic nutritional intervention during the symptomatic phase]. / Infección por VIH. Intervención dietética nutricional en la fase sintomática.

This article analyzes some of the causes and the mechanisms which provoke malnutrition during the symptomatic phase of AIDS. Dietetic advise to follow is specified for the following circumstances: weight loss; diarrhea; esophagus-related problems or difficulty in swallowing; if a patient suffers nausea or vomiting; when a patient suffers from anorexia or the feeling of being full quickly. This article also deals with nutritional supplements which may be used with these patients, when enteral or parenteral nutrition is indicated, and other treatment strategies which call for the use of appetite stimulating products and anabolic agents.

[Nutrition related to HIV-AIDS infection]. / Nutrición en la infección por VIH-SIDA.

The author analyzes the importance of correct nutrition for all those patients affected by HIV-AIDS infection due to the fact that for quite a while a relationship has been shown to exist between the quality and quantity of digested nutrients and the nutritional state of a patient and his/her immunocompetence. The author reviews the possible nutritional state affections and the most appropriate diets during the various phases of this disease. A few specific recommendations are made and a few diets which increase calories or proteins are presented.

Current antiretroviral therapy and its impact on human immunodeficiency virus-related wasting.

Recent improvements in the management of people living with human immunodeficiency virus (HIV) disease in the United States have led to remarkable reductions in HIV-related morbidity and mortality. The Centers for Disease Control and Prevention recently reported substantial reductions in acquired immunodeficiency syndrome (AIDS)-related opportunistic infections and conditions, including HIV-related wasting. These achievements followed the introduction of the new class of antiretroviral therapies, the aspartyl protease inhibitors, and their use in combination with nucleoside inhibitors in so-called highly active antiretroviral therapies. In an effort to provide guidance for clinicians in HIV care, the Office of AIDS Research, United States Department of Health and Human Services recently convened a panel of experts to set clinical practice guidelines for the use of antiretroviral therapy in adults and adolescents. This article summarizes the new standard of care for the use of HIV therapies. It also reviews recent data suggesting that combination therapy has altered the natural history of HIV infection and has reduced the incidence of HIV-related nutritional disturbances and wasting.