一个复合的形态测量十二指肠活检粘膜尺度用于腹腔疾病,包括形态和炎症
Jack A Syage1, Markku Mäki2, Daniel A Leffler3
1ImmunogenX, Inc, Newport Beach, California.
一个新的复合尺度,结合的高度与密室深度比率 (Vh:Cd) 和内皮淋巴细胞 (IEL),提高了评估乳病组织学的准确性. 这种VCIEL尺度为评估小肠粘膜损伤提供了比单个措施更好的统计准确性.
科学领域:
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
- 组织病理学 组织病理学
背景情况:
- 结核病的诊断依赖于小肠组织学,主要是的高度与密室深度比 (Vh:Cd) 和内皮淋巴细胞 (IEL).
- 目前的组织学测量缺乏普遍接受的标准来评估乳病的粘膜损伤.
- 乳病研究的进步需要改进,精确的组织学评估工具.
研究的目的:
- 开发和验证一种复合组织学尺度,称为VCIEL (Villus高度与密室深度比和内皮质淋巴细胞),用于乳病.
- 评估VCIEL尺度是否提高了小肠粘膜损伤评估的准确性和统计准确性,而不是单个措施.
- 在临床试验中,将VCIEL尺度与Vh:Cd和IEL的临床和统计意义进行比较.
主要方法:
- 通过将Vh:Cd和IEL测量结果结合起来,将每个测量结果转换为它们的标准偏差的一小部分,并总结结果来制定VCIEL尺度.
- 该VCIEL公式被追溯应用到多项临床试验的数据,这些试验涉及病患者.
- 对Vh:Cd,IEL和VCIEL的变化计算了效应大小和P值 (协变性分析),以比较它们的统计力和临床意义.
主要成果:
- 在ALV003-1021试验中,VCIEL尺度显示了较大的效果大小 (1.86) 和较强的统计意义 (P=0.004) 与 ΔVh:Cd (1.37,P=0.038) 和 ΔIEL (1.17,P=0.005) 相比.
- 在一个谷蛋白挑战试验 (IMGX003-NCCIH-1721) 中,VCIEL也显示出优异的结果 (效果大小1.14,P=0.007) 超过单个措施 (ΔVh:Cd:0.76,P=0.057; ΔIEL:0.98,P=0.018).
- 在使用VCIEL尺度时,在各种研究中观察到准确性和统计精度的持续改善,包括非治疗性质挑战.
结论:
- 复合VCIEL尺度有效地整合了Vh:Cd和IEL测量.
- 似乎VCIEL尺度为乳病的组织学评估提供了更高的准确性和统计准确性.
- 这种综合测量有望成为在临床研究中评估小肠粘膜损伤的更强大的工具.
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