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临床试验/NCT00008788
NCT00008788Unknown不适用

Osteoporosis in Children and Adults Following Liver Transplantation

National Center for Research Resources (NCRR)1 个研究点 分布在 1 个国家目标入组 40 人开始时间: 2001年1月18日最近更新:
适应症

试验速览

阶段
不适用
发起方
入组人数
40
试验地点
1

研究概览

简要总结

This pilot project aims to 1) estimate the prevalence of osteoporosis in adults having undergone liver transplantation in childhood, and 2) identify risk factors for osteoporosis in this group. We aim to study 40 individuals.

详细描述

Background: Osteoporosis is defined as an absolute decrease in the amount of bone (volume and/or density). Chronic liver disease is associated with osteoporosis in both adults and children. Bone density is also decreased in the months immediately after liver transplantation, but improves to pretransplant values after 1 to 2 years. Immunosuppressive agents, most notably steroids, are a cause of osteoporosis. However, studies on adults have shown that bone densities afer transplantation continue to improve within the normal range for healthy adults. In the case of children, bone accretion is necessary for growth. Chronic liver disease and transplantation in childhood will have an adverse effect on bone metabolism and the outcome in terms of bone density after the growth period cannot be predicted on individuals transplanted as adults or other transplant groups.

研究设计

研究类型
Observational
观察模型
Defined Population
时间视角
Cross Sectional

入排标准

年龄范围
16 Years 至 40 Years(Child, Adult)
性别
All
接受健康志愿者

入选标准

  • 未提供

排除标准

  • 未提供

研究者

发起方
National Center for Research Resources (NCRR)
申办方类型
Nih

研究点 (1)

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