Species Differences of Bakuchiol-induced Liver Injury in Mice Based on Transcriptomics / 中国实验方剂学杂志

ObjectiveTo explore the differences in response to bakuchiol-induced hepatotoxicity between Institute of Cancer Research （ICR） mice and Kunming （KM） mice. MethodThe objective manifestations of bakuchiol-induced hepatotoxicity in mice were confirmed by acute and subacute toxicity animal experiments， and enrichment pathways of differential genes between normal ICR mice and KM mice were compared by transcriptomics. The real-time quantitative polymerase chain reaction （real-time qPCR） assay was used to verify the mRNA expression of key genes in the related pathways to confirm the species differences of bakuchiol-induced liver injury. ResultIn the subacute toxicity experiment， compared with the normal mice， the ICR mice showed increased serum content of alkaline phosphatase （ALP）， and 5′-nucleotidase （5′-NT）， without significant difference， and no manifest change was observed in KM mice. Pathological results showed that hepatocyte hypertrophy was the main pathological feature in ICR mice and hepatocyte steatosis in KM mice. In the acute toxicity experiment， KM mice showed erect hair， mental malaise， and near-death 3 days after administration. The levels of serum alanine aminotransferase （ALT） and aspartate aminotransferase （AST） in KM mice （400 mg·kg-1） significantly increased（P<0.01）， and the activity of total reactive oxygen species （SOD） in liver significantly decreased（P<0.01）compared with those in normal mice， while the serum content of 5′-NT and cholinesterase （CHE） in ICR mice （400 mg·kg-1） were significantly elevated （P<0.01）. The liver/brain ratio in ICR mice increased by 20.34% and that in KM mice increased by 29.14% （P<0.01）. The main pathological manifestation of the liver in ICR mice was hepatocyte hypertrophy， while those in KM mice were focal inflammation， hepatocyte hypertrophy， and hepatocyte steatosis. Kyoto Encyclopedia of Genes and Genomes（KEGG）and Reactome pathway enrichment analyses showed that the differential gene expression between ICR mice and KM mice was mainly involved in oxidative phosphorylation， bile secretion， bile acid and bile salts synthesis， and metabolism pathway. CYP7A1 was up-regulated in all groups with drug intervention （P<0.01） and MRP2 was reduced in all groups with drug intervention of KM mice （P<0.01） and elevated in all groups with drug intervention of ICR mice （P<0.01） compared with those in the normal group. The expression of BSEP was lowered in ICR mice with acute liver injury （400 mg·kg-1） （P<0.05）. SHP1 was highly expressed in KM mice with acute liver injury （400 mg·kg-1）. The expression of FXR was diminished in ICR mice with subacute liver injury （200 mg·kg-1） （P<0.01）. SOD1， CAT， and NFR2 significantly decreased in KM mice with acute liver injury （400 mg·kg-1）， and CAT dwindled in KM mice with subacute liver injury （200 mg·kg-1） （P<0.01）. GSTA1 and GPX1 significantly increased in KM mice with acute liver injury （400 mg·kg-1） （P<0.01） and SOD1， CAT， NRF2， and GSTA1 significantly increased in ICR mice with subacute liver injury （200 mg·kg-1） （P<0.01）. CAT and NRF2 significantly increased in ICR mice with acute liver injury （400 mg·kg-1） （P<0.01）. ConclusionWith the increase in the dosage of bakuchiol， the liver injury induced by oxidative stress in KM mice was gradually aggravated， and ICR mice showed stronger antioxidant capacity. The comparison of responses to bakuchiol-induced hepatotoxicity between ICR mice and KM mice reveals that ICR mice are more suitable for the investigation of the mechanisms related to bile secretion and bile acid metabolism in the research on bakuchiol-induced hepatotoxicity in mice. KM mice are more prone to liver injury caused by oxidative stress.

Comparative Study on Hepatotoxicity of Psoraleae Fructus in Rats and Mice / 中国实验方剂学杂志

Objective:Arrange long-term toxicity experiments by a uniform design method， so as to explore the effect of different extracts of Psoraleae Fructus on liver toxicity in rats and mice， and find the drug factors that cause psoralen liver toxicity. Method:Based on the factors of processing， extraction technology， dosage and treatment course， each experimental group was arranged by uniform design method. A total of 220 SD rats and 220 Kunming mice with half male and half female were divided into normal groups and drug groups 1 to 8. The corresponding drugs （50% alcohol extract of salt Psoraleae Fructus in rats 2.57 g·kg-1， mice 5.14 g·kg-1， 95% alcohol extract of Psoraleae Fructus in rats 0.51 g·kg-1， mice 1.02 g·kg-1， 70% alcohol extract of salt Psoraleae Fructus in rats 1.71 g·kg-1， mice 3.42 g·kg-1， water extract of Psoraleae Fructus in rats 1.03 g·kg-1， mice 2.06 g·kg-1， water extract of salt Psoraleae Fructus in rats 1.03 g·kg-1， mice 2.06 g·kg-1， 70% alcohol extract of Psoraleae Fructus in rats 1.71 g·kg-1， mice 3.42 g·kg-1， 95% alcohol extract of salt Psoraleae Fructus in rats 0.51 g·kg-1， mice 1.02 g·kg-1， 50% alcohol extract of Psoraleae Fructus in rats 2.57 g·kg-1， mice 5.14 g·kg-1） were administered by gavage daily. The body weight and food intake of the rats and mice were measured once a week. After the treatment course， the rats were anesthetized with sodium pentobarbital， and blood was taken from the abdominal aorta， and the mice were sacrificed by removing the eyeballs， and the liver and brain were taken to calculate the organ coefficients. Serum was taken to determine liver function-related indicators， and the liver was taken for histopathological examination by hematoxylin-eosin （HE） staining. Result:The liver visceral-brain ratio of female rats in group 3 were significantly increased （P<0.05）. The liver quality， visceral-body ratio and visceral-brain ratio of male mice in groups 1 to 3 were significantly increased （P<0.05， P<0.01）. Histopathological manifestations in mice were more obvious than those in rats. Histopathology showed hepatocyte hypertrophy in the central area of liver lobules in mice， in particular in group 3. According to the multiple regression equation， there were interactions between extraction technology， processing， dosage and treatment course， and the extraction technology was positively correlated with the pathological score of liver injury. Based on the results of visual analysis and other indicators， it is concluded that the extraction technology factor is most relevant to psoralen liver toxicity of Psoraleae Fructus. Conclusion:Psoraleae Fructus has the hepatotoxicity， which is related to ethanol extraction technology； alcohol extraction is more toxic than water extraction， and 70% ethanol extraction is the most toxic. Besides， there are species differences， with a more significant hepatotoxicity in mice than that in rats.

Pharmacodynamics and Mechanism of Chaijin Sanjie Prescription on Rats with Mammary Gland Hyperplasia / 中国实验方剂学杂志

Objective:To investigate the pharmacodynamics and mechanism of Chaijin Sanjie prescription (CJSJP) on rat mammary gland hyperplasia, in order to provide experimental basis for the research and development of new Chinese medicine. Method:SD rat model of mammary gland hyperplasia was established through exogenous intramuscular injection with estrogen and progesterone. After successful establishment of the model, the rats were randomly divided into normal group, model group, and low, medium and high-dose CJSJP groups (3.13, 6.26, 12.52 g·kg-1) and Rupixiao (0.517 g·kg-1) group, with 9 rats in each group. After 28 days of administration, estradiol (E2), progesterone (P) and rolactin (PRL) were measured by radioimmunoassay, uterus and ovary coefficients were calculated; nipple diameter and breast histopathology were observed, estrogen receptor-α(ER-α) expression in mammary gland was measured by immunohistochemistry, and gonadotropin-releasing hormone (GnRH) and gonadotropin-releasing hormone receptor (GnRH-R) mRNA expressions in hypothalamus, pituitary were measured by Real-time PCR. ICR mice were randomly divided into normal group, low, medium and high-dose CJSJP groups (5.2,10.4,20.8 g·kg-1) and Luotongding group (0.038 6 g·kg-1) according to their body weight. Twelve mice in each group were given drugs for 7 days, and 0.6% acetic acid was injected intraperitoneally for 30 minutes after the last administration. The writhing times were observed within 15 minutes. Result:Compared with the normal group, the diameter of nipple was widened, serum E2 was significantly increased (Pα expression were increased in model group. compared with model group, the diameter of nipple was significantly decreased in high dose group of CJSJP (P2 was decreased in all dose groups of CJSJP, pathological score of breast hyperplasia was decreased in middle and high dose groups of CJSJP, GnRH mRNA in hypothalamus was decreased in all dose groups of CJSJP. The writhing times of mice in high dose group of CJSJP was decreased (PConclusion:Chaijin Sanjie prescription can improve the lesions of breast hyperplasia. The therapeutic mechanism may be related to the regulation of GnRH gene expression in hypothalamus and the decrease of estrogen receptor expression.

Effects of Tripterygium Glycosides Tablets from 6 different manufacturers on acute liver injury of normal mice / 中国中药杂志

The aim of this paper was to compare the performance of acute liver injury in mice induced by Tripterygium Glycosides Tablets from 6 different manufacturers,and to explore the toxicity mechanism from the perspective of oxidative stress and apoptosis preliminarily. Male or female mice were randomly divided into normal group,Zhejiang group,Hunan group,Hubei group,Shanghai group,Jiangsu group and Fujian group. Mice in Tripgerygium Glycosides Tablets groups were given 16 times the clinical equivalent dose( 300 mg·kg-1) Tripgerygium Glycosides Tablets by oral administration for one time,mice were executed in 24 h after lavaged.Then the visceral brain coefficient of the organ was calculated. Histopathological changes of liver were observed by hematoxylin-eosin staining. Td T-mediated d UTP nick-end labeling was used to detect the apoptosis of the liver cells and the protein content of oxidative stress related factors in liver homogenate. Nuclear transcription factor E2-related factor( Nrf2) and heme oxygenase-1( HO-1) as well as mitochondrial mediated apoptosis-related protein expression levels of Bax and Bcl-2 in hepatic tissue were measured by Western blot.Within 24 hours of administration,6 male mice in Jiangsu group and 2 female mice in Zhejiang group were dying; compared with normal ones,liver coefficients of mice in Zhejiang,Shanghai,Jiangsu and Hunan groups were significantly increased,thymus coefficients in the first two groups were significantly reduced,as well as the lung coefficients of Fujian group mice,the rest was normal. In addition to Hubei group,serum AST,ALT or ALP levels of mice were increased,while TBi L were not being affected. Histopathological changes and apoptosis of liver cells were observed in all mice,and the degree of severity was ranked as Jiangsu,Zhejiang,Shanghai,Hunan,Hubei and Fujian group. All Tripterygium Glycosides Tablets increased the MDA and reduced the content of T-SOD,CAT or GSH in liver tissue while inhibited Nrf2,HO-1 and Bcl-2,increased the protein expression level of Bax( except Hunan group). Tripgerygium Glycosides Tablets from 6 manufacturers all resulted in liver function damage and liver histopathological changes,especially in Jiangsu,Hubei and Fujian,and the mechanism may related to inhibit Nrf2/HO-1 oxidative stress pathway and activate Bax/Bcl-2 apoptosis pathway to mediate lipid peroxidation and induce liver cell apoptosis. Triptolide A may be one of the main toxic components of Tripgerygium Glycosides Tablets that causing drug-induced liver injury. This study was conducted on normal mice with super dose medication,so the relevant results are for reference only.

Expression Levels of JARID1B, Hes1 and MMP-9 Genes in CML Patients Treated with Imatinib Mesylate / 中国实验血液学杂志

OBJECTIVE@#To explore the relationship between the expression levels of JARID1B,Hes1 and MMP-9 genes and the stages of chronic myelogenous leukemia(CML) and the curative effect of imatinib mesylate (IM).@*METHODS@#Peripheral blood samples of 15 cases of CML in chronic phase and 10 cases of CML in progressive phase were collected from the Hematology Department of Taihe Hospital affiliated to Hubei University of Medicine and 15 cases of healthy people in the Physical Examination Center. CML patients were divided into effective group and ineffective group based on the efficacy after treatment with IM, then real-time PCR was used to detect the expression levels of JARID1B, Hes1 and MMP-9 mRNA, finally, the differences in the level of gene expression and their correlations with CML stages and IM curative efficacy were analysed.@*RESULTS@#The expression levels of Hes1 and MMP-9 in initially diagnosed patients in chronic and progressive phase without IM treatment were significantly higher than those of health people（P＜0.05）. There was no significant difference in the expression level of JARID1B between chronic phase patients and health people（P＞0.05）, but the expression level of JARID1B in the progressive phase patients was higher than that of health people （P＜0.05）. The expression levels of JARID1B and Hes1 in the IM-effective group were not significantly different from those in the IM-ineffective group (P=0.85,P=0.82）, while the expression level of MMP-9 in the IM-effective group [JP2]was significantly lower than that in the IM-ineffective group（P＜0.05）.@*CONCLUSION@#The expression levels of JARID1B Hes1 and MMP-9 relate with the different phase of CML; The expression levels of JARID1B and Hes1 have not significant relationship with IM curative efficacy, the MMP-9 gene expression level relates with IM curative efficacy.

A case-control study on the quality of life and the way of response among patients with anxiety disorder in Shandong province / 中华流行病学杂志

<p><b>OBJECTIVE</b>To explore the characteristics related to the quality of life and the way of response among patients with anxiety disorder in Shandong province.</p><p><b>METHODS</b>Case-control study was adopted, with secondary data analysis on mental disorders among adults over 18 years of age, in Shandong province. 720 patients with anxiety disorder who met the anxiety diagnostic criteria of DSM-IV, were selected from the database, according to the distributions on gender, age (±3 years of age), village or community. 720 persons without any psychiatric diagnosis were selected and served as controls, under 1 :1 paired choice. Research tools would include:General Health Questionnaire (GHQ-12),Quality of Life Questionnaire (QLQ), Simplified Coping Style Questionnaire (SCSQ), and questionnaire on general information.</p><p><b>RESULTS</b>Scores of QLQ among patients with anxiety disorder were lower than that of the control group, with statistically significant difference(P < 0.01). Scores on the negative ways of coping among patients with anxiety disorder were higher than the scores of the control group, with statistically significant difference(P < 0.01). Regardless of gender, age, occupation, education, marriage, religious belief etc., results from the 'two factors anova-analysis' showed that the scores of QLQ among patients with anxiety disorder were still lower than the scores of the control group while the scores on negative coping were still higher than the scores of the control group.</p><p><b>CONCLUSION</b>Patients with anxiety disorder and having poor quality of life outnumbered the ones from the control group, and using negative coping ways to cope with the stress events.</p>