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Sherwood Gorbach

Publications and source records attributed to Sherwood Gorbach.

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Difficulty swallowing and lack of receipt of highly active antiretroviral therapy predict acute weight loss in human immunodeficiency virus disease.

In human immunodeficiency virus (HIV) disease, symptoms of underlying illness may promote weight loss through decreased caloric intake, increased metabolic needs, or nutrient malabsorption. We evaluated disease symptoms as predictors of acute weight loss (i.e., loss of > or =5% of weight). HIV-infected men and women (n=415) were telephoned every 5 weeks to obtain information about weight and recent symptoms. Weight change between each pair of consecutive calls (telephone intervals, 2814) was calculated. Acute weight loss occurred across 4.5% of intervals and among 24% of individuals. Patients reported > or =1 symptom before 58% of telephone intervals. The most common symptoms or symptom complexes before intervals were diarrhea (21% of patients), anorexia (17%), upper respiratory symptoms (16%), skin symptoms (12%), and abdominal pain (12%). Trouble swallowing (6%) and oral symptoms (7%) were less common. Risk of acute weight loss was significantly increased when oral symptoms or trouble swallowing were present, and it was decreased when highly active antiretroviral therapy (HAART) was used or when diarrhea was not present. Even when HAART is being administered, clinicians should remain vigilant regarding weight loss, oral symptoms, and trouble swallowing.

Adult↗

Use of complementary and alternative therapies by patients with human immunodeficiency virus disease in the era of highly active antiretroviral therapy.

BACKGROUND: Complementary and alternative medical therapies (CAM) are popular with patients who are human immunodeficiency virus (HIV) seropositive, despite effective drug treatments, potential drug interactions, and overlapping toxicities. OBJECTIVE: To determine rates and correlates of ingested and noningested CAM use, and to examine temporal changes in the rates of ingested CAM use during the introduction of highly active antiretroviral therapy (HAART). DESIGN: Cross-sectional analysis with repeated measures from a cohort study, with the study visit as the unit of analysis. SETTING: Eastern Massachusetts and Rhode Island. PARTICIPANTS: Adults who are HIV seropositive followed semiannually (n = 642) in Nutrition for Healthy Living (NFHL) study. MEASUREMENTS: Rates of ingested and noningested CAM use were assessed by interview every 6 months between 1995 and 1999. RESULTS: Ingested CAM use was reported at 60% of visits. Between 1995 and 1999, HAART use increased from 0% to 70%, and ingested CAM use decreased from 71% to 52%. In multivariate analyses, users of ingested complementary therapies were more likely to be gay men (prevalence ratio [PR] 1.40, 95% confidence interval [CI] 1.23-1.58; p < 0.0001), at least high school educated (PR 1.37, 95% CI 1.12-1.68, p = 0.002), and with secure housing (PR 0.75, 95% CI 0.61-0.92; p = 0.007). Even in the lowest risk group (less educated, nongay males with insecure housing), CAM use rates were 27% (95% CI 21%-34%). There was no association between HAART and CAM use. CONCLUSIONS: CAM therapies complement, rather than replace, HAART. Even among poorly educated, nongay male patients with insecure housing, rates of ingested CAM use were substantial. Physicians should routinely ask about ingested CAM therapy use and become knowledgeable about potential hazards.

Adult↗

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Agriculture↗

Role of cytokines and testosterone in regulating lean body mass and resting energy expenditure in HIV-infected men.

Although catastrophic weight loss is no longer common in HIV-infected men, we hypothesized that a more gradual process of cachexia [loss of lean body mass (LBM) without severe weight loss, often accompanied by elevated resting energy expenditure (REE)] is still common and is driven by excessive production of the catabolic cytokines tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1 beta). We performed a longitudinal analysis of an ongoing cohort study of nutritional status in 172 men with HIV infection. LBM loss of >1 kg occurred in 35% of the cohort, and LBM loss of >5% occurred in 12.2% over 8 mo of observation, but classical wasting (loss of approximately 10% of weight) was rare (2%). Both TNF-alpha (-150 g LBM. ng(-1) x ml(-1), P < 0.02) and IL-1 beta production (-130 g LBM x ng(-1) x ml(-1), P < 0.01) by peripheral blood mononuclear cells predicted loss of LBM. A rise in REE of >200 kcal/day was found in 17.7% of the subjects regardless of weight change. IL-1 beta (+9 kcal/day per ng/ml, P < 0.002) and TNF-alpha (+10 kcal/day per ng/ml, P < 0.02) production predicted Delta REE. Serum free testosterone was inversely associated with TNF-alpha production and was not an independent predictor of either Delta LBM or Delta REE after adjustment for cytokine production. Even though weight loss was rare in this cohort of patients treated with highly active antiretroviral therapy, loss of LBM was common and was driven by catabolic cytokines and not by inadequate dietary intake or hypogonadism.

Adult↗