期刊
JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
卷 55, 期 2, 页码 228-231出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/QAI.0b013e3181e1d963
关键词
adipose tissue; HIV; HCV; insulin resistance; magnetic resonance spectroscopy; steatosis
资金
- UCSF Hellman Early Career Faculty Award
- National Institute of Allergy and Infectious Diseases [UO1-AI-35004, UO1-AI-31834, UO1-AI-34994, UO1-AI-34989, UO1-AI-34993, UO1-AI-42590]
- National Institute of Child Health and Human Development [UO1-HD-32632]
- National Cancer Institute
- National Institute on Drug Abuse
- National Institute on Deafness and Other Communication Disorders
- National Center for Research Resources [UL1 RR024131]
- [K23 AI-66943]
- [P01 HD-40543]
- [UO1 AI-34989]
- [M01 RR-00083]
Background: Hepatic steatosis is common in persons with HIV and hepatitis C virus (HCV); yet biopsy measurement of steatosis is prone to sampling error. We compared magnetic resonance spectroscopy (MRS) measurement of steatosis to histology in HIV/HCV-coinfected patients and explored the associated adipose tissue and metabolic factors. Methods: Cross-sectional analysis of 42 HIV/HCV-coinfected men and women. Logistic regression analysis identified factors (MRI-measured visceral adipose tissue and abdominal subcutaneous adipose tissue and Homeostasis Model Assessment-estimated insulin resistance) associated with histologic steatosis (>= 5% of hepatocytes with fat) and MRS steatosis (>= 5% of hepatic fat). Results: MRS steatosis was strongly associated with histologic steatosis, when measured continuously (odds ratio: 10.2 per doubling of MRS-measured hepatic fat; 95% confidence interval: 2.9 to 69.3) and dichotomously (Kappa coefficient = 0.52; P = 0.0007). Four of the 10 with MRS-measured steatosis did not have histologic steatosis; 3 of 9 with histologic steatosis did not have MRS-measured steatosis (67% sensitivity; 88% specificity). Associations of visceral adipose tissue and abdominal subcutaneous adipose tissue were associated with both histologic and MRS-measured steatosis. Insulin resistance was also associated with both. Conclusions: When compared with histology, MRS was similarly associated with adipose tissue and metabolic factors. MRS is a useful noninvasive alternative to biopsy in HIV/HCV coinfection.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据