Research on Pei Zhengxue's Formulation Series

2.5 Measurement of Thymus and Spleen Indices

Chapter 164

### 2.5 Measurement of Thymus and Spleen Indices

From Research on Pei Zhengxue's Formulation Series · Read time 1 min · Updated March 22, 2026

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  1. 2.5 Measurement of Thymus and Spleen Indices

2.5 Measurement of Thymus and Spleen Indices

Twenty-four hours after the last administration, weigh the mice, sacrifice them, and remove the thymus and spleen, weighing them on a 1/1000 scale. Calculation methods for thymus and spleen indices [16]:

Thymus index (mg/10 g) = Thymus weight / (Final body weight - Tumor weight) × 10

Spleen index (mg/10 g) = Spleen weight / (Final body weight - Tumor weight) × 10

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