Abstract：
BACKGROUND AND AIMS:We tested the effects of recombinant insulin-like growth factor-I (IGF-I) in an adipocyte model of HIV lipodystrophy and in an open label study on body composition and metabolism in patients with HIV lipodystrophy. METHODS:The effects of IGF-I on ritonavir-induced adipocyte cell death were studied in vitro. We assessed lipid accumulation, IGF signaling, apoptosis, and gene expression. We conducted a 24-week open label trial of recombinant IGF-I in ten adults with HIV associated lipoatrophy. Laboratory assessments included glucose, insulin, lipids, and IGF-I. At weeks 0 and 24, body composition studies were performed including skinfold measurement, dual-energy x-ray absorptiometry, and computed tomography of the abdomen and thigh. RESULTS:In vitro, ritonavir increased delipidation and apoptosis of adipocytes, whereas co-treatment with IGF-I attenuated the effect. In the clinical study, subcutaneous adipose tissue did not increase in patients after treatment with IGF-I; however, there was a decrease in the proportion of abdominal fat (39.8 ± 7% vs. 34.6 ± 7%, p = 0.007). IGF-I levels increased with treatment (143 ± 28 μg/L at week 0 vs. 453 ± 212 μg/L at week 24, p = 0.002), whereas IGFBP-3 levels declined (3.554 ± 1.146 mg/L vs. 3.235 ± 1.151 mg/L, p = 0.02). Insulin at week 12 decreased significantly (90.1 ± 39.8 pmol/L vs. 33.2 ± 19.6 pmol/L, p = 0.002). There was a nonsignificant decrease in visceral adipose tissue (155.2 ± 68 cm² at week 0 vs. 140.6 ± 70 cm² at week 24, p = 0.08). CONCLUSIONS:Use of recombinant IGF-I may lower fasting insulin and abdominal fat in patients with lipoatrophy associated with HIV infection. Further evaluation of this agent for treatment of HIV-associated lipodystrophy may be warranted.
journal_name
Arch Med Resjournal_title
Archives of medical researchauthors
Kim RJ,Vaghani S,Zifchak LM,Quinn JH,He W,Tebas P,Frank Idoi
10.1016/j.arcmed.2013.06.001subject
Has Abstractpub_date
2013-07-01 00:00:00pages
361-9issue
5eissn
0188-4409issn
1873-5487pii
S0188-4409(13)00118-5journal_volume
44pub_type
杂志文章abstract：BACKGROUND:Many studies indicate that the production of reactive oxygen species (ROS) after renal ischemia/reperfusion (I/R) may initiate the cascade of cellular injury. It has been demonstrated that ozone oxidative preconditioning (OzoneOP) may prevent the damage induced by ROS and attenuate renal I/R injury. On the b...
journal_title：Archives of medical research
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abstract：BACKGROUND AND AIMS:CTLA-4 exon-1 +49A>G polymorphisms have been reported to influence the risk for primary biliary cirrhosis in many studies; however, the results still remain controversial and ambiguous. The aim of this study was to determine more precise estimations for the relationship between CTLA-4 exon-1 +49A>G ...
journal_title：Archives of medical research
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abstract：:It is currently accepted that the red blood cell indices (MCV, MCH and MCHC) are the same in general care hospital populations throughout the world. The aim of the study was to explore whether the internationally accepted values for red cell indices are the same in a hospital located in Mexico City at 2240 meters abov...
journal_title：Archives of medical research
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abstract：:E. histolytica, pathogenic, and E. dispar, non-pathogenic, being morphologically identical are, when recovered as cysts in feces, diagnosed as E. histolytica. A survey on The Seychelles demonstrated that when culture and zymodeme characterization was used to compare against microscopy alone, the risk of overdiagnosis ...
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journal_title：Archives of medical research
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doi：
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journal_title：Archives of medical research
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更新日期：2006-08-01 00:00:00
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journal_title：Archives of medical research
pub_type： 杂志文章
doi：
更新日期：1992-04-01 00:00:00
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journal_title：Archives of medical research
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doi：
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更新日期：1997-04-01 00:00:00
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journal_title：Archives of medical research
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abstract：:The local induction of humoral immune response to Entamoeba histolytica trophozoites in the gut has not been studied. This work reports some of our recent studies aimed to induce optimal immune responses against E. histolytica in mice and to describe a novel approach for monitoring mucosal immune responses induced in ...
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doi：
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journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2011.06.007
更新日期：2011-05-01 00:00:00
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journal_title：Archives of medical research
pub_type： 杂志文章
doi：10.1016/j.arcmed.2005.05.020
更新日期：2006-04-01 00:00:00
