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This thesis is aimed at shedding light on the effects of the Zhenwu decoction (ZWD) on the activities and mRNA expressions of seven CYP450 isoenzymes. In the first step, we determined the main chemical compounds of ZWD by high-performance liquid chromatography (HPLC). Next, 48 male (SD) rats were randomly divided into the normal saline (NS) group and the ZWD low- (2.1875 g/kg), medium- (4.375 g/kg), and high- (8.75 g/kg) dose groups (12 per group). All rats were gavaged once daily for 28 consecutive days. A mixed solution of seven probe drugs was injected into 24 rats through the caudal vein after the last intragastric administration. Lastly, a validated cocktail method and real-time quantitative reverse-transcription polymerase chain reaction (RT-qPCR) were used to detect pharmacokinetic parameters and mRNA expressions, respectively. Compared with the NS group, ZWD at medium- and high-dose groups could significantly induce CYP2C6 (P < 0.05) activity, while the mRNA expression (P < 0.05) increased only in the high-dose group. Additionally, CYP2C11 activity was induced and consistent with mRNA expression (P < 0.05). Moreover, ZWD could induce the activity of CYP3A1 (P < 0.05), but the mRNA expression showed no significant differences except in high-dose groups. Additionally, ZWD has no effects on CYP1A2, CYP2B1, CYP2C7, and CYP2D2. In conclusion, the significant inductive effects of ZWD on three CYP450 isoenzymes indicated that when ZWD was coadministrated with drugs mediated by these enzymes, not only should the potential herb-drug interactions (HDIs) be observed, but the dosage adjustment and tissue drug concentration should also be considered. Furthermore, the approach described in this article can be applied to study the importance of gender, age, and disease factors to HDI prediction. [ABSTRACT FROM AUTHOR]

The research literature indicates that patients with bipolar disorder (BPD) differ from healthy individuals in various ways that are also recognized in traditional Chinese medicine. The purpose of the current study was to analyze the pulse spectra in BPD patients to determine any differences from nonpsychotic healthy individuals. Sphygmography was used to measure the radial arterial pulse waves in all subjects. We analyzed the original waveforms and then transformed them into frequency spectra via Fourier transformation. The relative strength of each harmonic, believed to be connected to meridians in Chinese medicine, was identified from the frequency, and we compared the differences among the harmonics. A total of sixty individuals, thirty with BPD and thirty nonpsychotic healthy controls, participated in the study. The harmonic values of C4 (Lung Meridian) on the right hand, 401.33 ± 50.10 vs. 762.44 ± 125.17, were significantly different (p < 0.05) between the BPD group and the nonpsychotic healthy group. The harmonic percentage of C3 (Spleen Meridian) on the right hand, 7.85 ± 0.59% vs. 10.79 ± 1.01%, and C4 (Lung Meridian), 1.80 ± 0.15 vs. 3.24 ± 0.43, was significantly different (p < 0.05) between the two groups. The results were similar for the right and left hands. In this study, we objectively detected constitutional differences between BPD patients and healthy controls through arterial pulse analysis. The pulse spectrum analyzer is a non-invasive diagnostic tool that can be used to integrate scientific technology with traditional Chinese medicine. We plan further study in this field to improve the accuracy of diagnosis in Chinese medicine. [ABSTRACT FROM AUTHOR]

Objectives: Atopic dermatitis (AD) is a common allergy that causes the skin to be dry and itchy. It appears at an early age, and is closely associated with asthma and allergic rhinitis. Thus, AD is an indicator that other allergies may occur later. Literatures indicate that the molecular basis of patients with AD is different from that of healthy individuals. According to the classics of Traditional Chinese Medicine, the body constitution of patients with AD is also different. The purpose of this study is to determine the differences in pulse spectrum analysis between patients with AD and nonatopic healthy individuals. Methods: A total of 60 children (30 AD and 30 non-AD) were recruited for this study. A pulse spectrum analyzer (SKYLARK PDS-2000 Pulse Analysis System) was used to measure radial arterial pulse waves of subjects. Original data were then transformed to frequency spectrum by Fourier transformation. The relative strength of each harmonic wave was calculated. Moreover, the differences of harmonic values between patients with AD and non-atopic healthy individuals were compared and contrasted. Results: This study showed that harmonic values and harmonic percentage of C3 (Spleen Meridian, according to Wang's hypothesis) were significantly different. Conclusions: These results demonstrate that C3 (Spleen Meridian) is a good index for the determination of atopic dermatitis. Furthermore, this study demonstrates that the pulse spectrum analyzer is a valuable auxiliary tool to distinguish a patient who has probable tendency to have AD and/or other allergic diseases. [ABSTRACT FROM AUTHOR]