Lifestyle, Dietary Patterns, and Cardiometabolic Risk in Metabolic Dysfunction-Associated Steatotic Liver Disease Among People Living With HIV
Evaluation of Lifestyle, Dietary Patterns, and Cardiometabolic Risk in Metabolic Dysfunction-Associated Steatotic Liver Disease Among People Living With HIV
Metabolic dysfunction-associated steatotic liver disease (MASLD), previously known as non-alcoholic fatty liver disease, is an increasingly recognized comorbidity in people living with human immunodeficiency virus (HIV). Chronic low-grade inflammation, altered lipid metabolism, and certain antiretroviral therapy (ART) regimens may heighten the vulnerability of people living with HIV (PLWH) to liver fat accumulation, progressive liver fibrosis, and cardiometabolic complications.
The primary purpose of this observational case-control study is to determine the prevalence, clinical characteristics, and laboratory findings of MASLD and hepatic fibrosis among PLWH compared with matched HIV-negative individuals. The study also aims to evaluate dietary quality, lifestyle habits, and cardiovascular risk profiles in both groups, and to determine whether adherence to a healthy lifestyle protects against significant liver disease.
Adult participants (aged 18 years and older) attending the Department of Tropical Medicine and Gastroenterology at Assiut University Hospitals will be enrolled into two groups: people living with HIV and HIV-negative individuals matched by age, sex, and degree of liver steatosis.
All participants will complete the following non-invasive evaluations:
- Hepatic Assessment: Abdominal ultrasound and transient elastography (FibroScan) to detect fatty liver and quantify liver stiffness, alongside non-invasive scoring systems (FIB-4 score and NAFLD Fibrosis Score).
- Laboratory Investigations: Fasting blood tests including liver function tests, lipid profiles, glycemic status (HbA1c), kidney function, complete blood count, and immune markers (CD4+ T-cell count and CD4/CD8 ratio).
- Physical and Body Measurements: Measurement of body mass index (BMI), waist circumference, and mid-arm muscle circumference (MAMC).
- Dietary and Lifestyle Questionnaires: Validated assessment tools including the Food Frequency Questionnaire (FFQ), Short Healthy Eating Index (sHEI), and Healthy Lifestyle Questionnaire to quantify nutritional quality, physical activity, and daily lifestyle habits.
- Cardiometabolic Risk Calculation: Calculation of predicted cardiovascular risk using the American Heart Association PREVENT risk score.
Findings from this study are intended to clarify the role of dietary quality and lifestyle factors in liver and metabolic health among people living with HIV, potentially informing proactive screening and management strategies.
調査の概要
状態
研究の種類
入学 (推定)
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
The study population comprises adult patients living with HIV (both antiretroviral therapy-naïve and treatment-experienced) and HIV-negative individuals attending the Department of Tropical Medicine and Gastroenterology and the Endoscopy Unit at the Faculty of Medicine, Assiut University Hospitals, Egypt. Control subjects are recruited from the same clinical setting and matched to HIV cases according to age, sex, and degree of metabolic dysfunction-associated steatotic liver disease (MASLD).
説明
Inclusion Criteria:
- Age 18 years or older.
- Confirmed HIV infection (for the case cohort), including both antiretroviral therapy (ART)-naïve and ART-experienced individuals.
- Confirmed HIV-negative status (for the control cohort), matched by age, sex, and degree of metabolic dysfunction-associated steatotic liver disease (MASLD).
- Ability and willingness to provide written informed consent.
Exclusion Criteria:
- Significant alcohol consumption (>20 g/day for men or >10 g/day for women).
- Pregnancy.
- Current or prior history of malignancy.
- Advanced liver cirrhosis.
- Refusal to participate in the study.
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 観測モデル：CASE_CONTROL
- 時間の展望：CROSS_SECTIONAL
コホートと介入
グループ/コホート |
|---|
|
People Living with HIV (PLWH)
Adult patients (≥18 years) with confirmed HIV infection, including both antiretroviral therapy (ART)-naïve and ART-experienced individuals. Participants undergo screening and evaluation for metabolic dysfunction-associated steatotic liver disease (MASLD) and liver fibrosis using abdominal ultrasound, transient elastography (FibroScan), FIB-4 score, and NFS. Assessments include CD4+ T-cell count, CD4/CD8 ratio, routine laboratory tests, dietary quality and patterns (FFQ, short HEI), lifestyle adherence (Healthy Lifestyle Questionnaire), cardiometabolic risk profiling (PREVENT score, lipid profile, HbA1c), and mid-arm muscle circumference (MAMC). |
|
Non-HIV Matched Controls
Adult individuals (≥18 years) confirmed to be HIV-negative, matched to cases by age, sex, and degree of MASLD. Participants undergo the same clinical, biochemical, hepatic (abdominal ultrasound, FibroScan, non-invasive fibrosis scores), dietary, lifestyle, and cardiometabolic risk assessments to serve as a comparative control cohort. |
この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Percentage of Participants With Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)
時間枠：Baseline
|
Hepatic steatosis is assessed by abdominal ultrasound and transient elastography (Controlled Attenuation Parameter [CAP]). MASLD is diagnosed based on the presence of hepatic steatosis in conjunction with at least one cardiometabolic risk factor (such as elevated BMI, waist circumference, dyslipidemia, hypertension, or impaired fasting glucose/HbA1c) and the exclusion of secondary causes of hepatic steatosis (including significant alcohol consumption). The outcome will be reported as the proportion (percentage) of participants meeting diagnostic criteria for MASLD in each study cohort. |
Baseline
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協力者と研究者
スポンサー
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- Lifestyle and MASLD in HIV
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