Résumé
On base of traditional physiological studies, building a comprehensive evaluation system for the efficacy of Liuwei Dihuang Wan (LW) for regulating the growth and development of rats by indicators that the overall metabolic profile and biomarkers of urinary metabonomics. Sixty-seven day-old Sprague-Dawley rats were randomly divided into four groups that are the control group and low-dose, medium-dose, and high-dose groups of LW. At the age of 28 days, different doses of LW extracts were continuously administered for 16 days. On the basis of behavior, body weight, organ index and femur length, a UPLC-HDMS technique was used to establish urine metabolomics method to characterize the profile of urine metabolism before and after intervention of LW, analysis and identificate related to drug effects of differential metabolism markers, and study the effect of LW on the growth and development of rats. LW could improve the overall behavioral ability of rats, promote weight gain and the growth of organs and bones, and 36 differential metabolites and 13 target metabolic pathways of urine under the intervention of LW were identified, and 8 metabolic markers were regarded as a key marker that LW effect the growth and development of rats. LW has a significant regulatory effect on the urine metabolic network during the growth and development of rats. This study interpreted the scientific implications of the effect of "Nourishing Kidney Yin" on the growth and development of rats.
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Both of Zuogui Wan(ZGW) and Liuwei Dihuang Wan(LWDHW) contain ingredients of Sanbufang(SBF), which have been proven to have antiasthmatic effects. In order to study the antiasthmatic effects of the three tonifying kidney-Yin formulas and their mechanisms, BALB/c mice were randomly divided into 5 groups. Chronic asthma was induced by ovalbumin. Mice in treated groups were respectively given 49.0 g•kg⁻¹ZGW, 35.0 g•kg⁻¹LWDHW and 22.4 g•kg⁻¹SBF by gavage. Those in normal and model group were given normal saline. After treatment, sneeze and nose scratching times of mice were observed. Histological lung sections were prepared to determine the basement membrane thickness(BMT), smooth muscle thickness(SMT), collagen area(CA) and numbers of goblet cells(GCN). Western blotting and RT-PCR were used to determine the expression levels of MMP-9, TGF-β1, Smad2, Smad3 and Smad7. The results showed that sneeze and nose scratching times of ZGW group were significantly lower than those of SBF group. Its inhibition degree on airway remodeling was significantly higher than SBF group. Sneeze and nose scratching times of LWDHW group were significantly lower than SBF group. Its CA and GCN were significantly lower than SBF group. Regarding the four airway remodeling related factors, MMP-9, TGF-β1, Smad2 and Smad3 of ZGW group were significantly lower than those of SBF group, and its Smad7 was significantly higher than SBF. Smad7 of LWDHW group was significantly higher than SBF. There was no significant difference in MMP-9 between model group and SBF group. The results indicate that there are significant differences in the antiasthma effect of these tonifying kidney-Yin formulas. The regulatory effects of ZGW and LWDHW on MMP-9 and Smad7 may be correlated with the differences in the inhibitory effect of airway remodeling of the three formulas.
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10.3969/j.issn.2095-4344.2013.26.015
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Objectives To study the clinical results of Liuwei Dihuang Wan plus jinkui Shenqi Wan treating small renal calculus (diameter< 1.0cm) which are not suitable for surgical operation. Methods 200 eases were randomly recruited into a control group and a treatrnent group, with 100 cases in each group. 100 cases in the treatment group was further enrolled into team A (having the syndrome of kidney Yin deficiency) and team B (having the syndrome of kidney yang deficiency), with 50 eases in each team. Team A and team B was treated with Liuwei Dihuang Wan and Jinkui Shenqi Wan respectively. The control group was treated with drugs that removing urinary calculus. Results The cure rate and the effective rate in team A was 60% and 86% respectively; and 62% and 88% respectively in team B. The total cure rate and effective rate of the treatment was 61% and 87% respectively. On the other hand, the cure and effectively rate of the control group was 7% and 35% respectively. The difference between the two groups were significant (P<0.01). Conclusion Liuwei Dihuang Wan plus jinkui Shenqi Wan has good effect in treating small renal calculus.
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Objective To determine the content of two original constituents of Liuwei Dihuang Wan migrating to blood. Methods HPLC- fingerprint of the preparation and drug- containing serum fingerprint were established by RP- HPLC. Based on the fingerprints, the original constituents migrating to blood were identified and determined by comparing with the standard. Results Loganin and paeonol were identified as the original constituents migrating to blood; the loganin content was 0.93? 0.01 mg/g and the paeonol was 0.37? 0.01 mg/g. Conclusion Using the constituent content migrating to blood as the parameter, this method will provide scientific evidence for improving the quality control of Liuwei Dihuang Wan.
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AIM: To study the effect of Liuwei Dihuang Wan (LWDHW) on the expression of immune-associated genes in the aged rats using cDNA microarray. METHODS: Forty 20-months-old rats were divided into two groups equally. One group was treated with LWDHW for 5 weeks,another was untreated as control. Some biochemical assays were used to confirm the physiological differences between two groups. The mRNA from the spleens of twenty 4-months-old young rats were extracted and divided equally into two parts. Each part was conjoined with mRNA from drug treated aged rats and that from untreated control aged rats,respectively,and two experimental combinations for reverse transcription and cDNA microarray were formed. By comparing two groups of data from two combinations,the effects of LWDHW on the expression of the associated genes were evaluated. RESULTS: 13 down-regulated genes and one up-regulated gene were identified in the untreated control old rats,whose expression did not change obviously in treated old rats compared with young rats. The expressions of another two sequence were up-regulated distinctly in treated old rats compared with young rats. CONCLUSIONS: 16 immune-associated genes expressions were affected markedly by LWDHW. It will be helpful for understanding the molecular mechanism of LWDHW in ageing.