Assessment of the Prevalence of Lysosomal Acid Lipase Deficiency in Patients Waiting for a Liver Transplant. (LALTH-1)
Lysosomal Acid Lipase (LAL) deficiency is a rare, autosomal recessive storage disease linked to decrease enzymatic activity of LAL, responsible for intracellular accumulation of cholesterol esters and triglycerides.
The accumulation of lipid is in hepatocytes, Kupffer cells and macrophages leading to a fatty liver, hepatic fibrosis that can evolve up to cirrhosis.
LAL deficiency is responsible for significant morbidity and early mortality in children, adolescents and adults in connection with a multi visceral disease reaching the liver, gastrointestinal tract and the vascular endothelium. The disease is caused by homozygous or heterozygous mutations in the gene (LIPA chromosome 10q23.2-23.3) which is responsible for the synthesis of the LAL.
The disease can be diagnosed by enzymatic analysis using few drops of blood absorbed onto blotting paper .
Patients with this deficiency LAL, have no or reduced activity of this enzyme. Because of its rarity, the deficit in LAL is under diagnosed or is diagnosed in patients with liver biological disturbances and / or lipid profile disturbances, steatohepatitis-hepatitis (NASH), the steatosis (NAFLD), the cryptogenic cirrhosis or Wilson disease.
Inclusion period of 12 to 18 months (100 patients).
研究概览
研究类型
注册 (预期的)
联系人和位置
学习地点
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Lyon、法国、69004
- 招聘中
- Hépato-Gastro-Entérologie, Hôpital de la Croix Rousse, 103 gde rue de la Croix Rousse
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接触：
- Sylvie Radenne, MD
- 电话号码：+33 (0)4 26 10 93 59
- 邮箱：sylvie.radenne@chu-lyon.fr
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接触：
- Isabelle Delfour
- 电话号码：(0)4 26 73 27 25
- 邮箱：isabelle.delfour@chu-lyon.fr
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
The Assessment of the prevalence of Lysosomal Acid Lipase deficiency were performed from few blood drops absorbed onto blotting paper during a routine visit in patients waiting for a liver transplant.
Patients will be included when they will be registered on the liver transplant waiting list.
The enzymatic analysis onto blotting paper will be made during a routine visit in patients with cryptogenic cirrhosis, NASH (isolated or associated with other liver disease).
Oral and written information will be given by the clinician. Only research team members will have access to patient data and their analysis. The patient data (age, gender, medical history, etiology of liver disease, liver function, lipid, glucose, radiological ...) will be collected and stored in an Excel file.
The diagnosis analysis deficit LAL will be performed as described in the article by Hamilton.
描述
Inclusion Criteria:
- patients registered on the liver transplant waiting list.
- patients with cryptogenic cirrhosis, NASH
Exclusion Criteria:
- Patients without metabolic syndrome clinical, biological or radiological.
学习计划
研究是如何设计的？
设计细节
- 观测模型：队列
- 时间观点：预期
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Deficiency Lysosomal Acid Lipase prevalence in patients waiting for a liver transplant
大体时间：During the routine visit (Day 1)
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Assessment of deficiency Lysosomal Acid Lipase prevalence in patients waiting for a liver transplant
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During the routine visit (Day 1)
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合作者和调查者
调查人员
- 首席研究员：Sylvie Radenne, MD、Hospices Civils de Lyon
研究记录日期
研究主要日期
学习开始
初级完成 (预期的)
研究完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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