1.Expression of early growth response factor 1 and intervention of silymarin in rat models of alcoholic fatty liver
Chinese Journal of Tissue Engineering Research 2015;(27):4351-4355
BACKGROUND:Proinflammatory transcription factors and inflammatory factors play an important role in the occurrence of alcoholic liver disease. However, early growth response factor 1 is one of the key factors of starting inflammation. OBJECTIVE: To investigate and analyze the effects of silymarin on early growth response factor1 in rat models of alcoholic fatty liver. METHODS:The rat models were established using the methods of feeding with high fat diet and intragastricaly administering alcohol, in total 8 weeks. Silymarin intervention at high and low doses (200,100 mg/kg) was given after each gavage. The normal group was set as comparison. RESULTS AND CONCLUSION:Serological indicator detection and hematoxylin-eosin staining results showed that compared with the model group, the body weight of rats was increased (P < 0.05); serum aspartate aminotransferase, alanine aminotransferase activity, early growth response factor 1 and tumor necrosis factor-α expression in the liver tissue were decreased (P < 0.05); pathological grading results were superior in the high-dose silymarin group to in the other groups (P < 0.01). The results confirm that high dose of silymarin can protect the liver function of rats, reduce the occurrence of liver function damage, which may be associated with the inhibition on the early growth response factor 1 in the body of rats, thereby reducing the tumor necrosis factor-α formation, but the specific mechanism remains to be further studied.
2.Anti-hyperuricemic activity of bergenin and its mechanism
Acta Universitatis Medicinalis Anhui 2014;(1):63-66,67
Objective To explore the anti-hyperuricemia activity of bergenin in the model of hyperuricemic mice induced by potassium oxonate. Methods 60 Kunming male mice were divided randomly into six groups, which were normal control group;hyperuricemic model group;and hyperuricemic groups with 20 , 40 , 60 mg/kg berge-nin, and 5 mg/kg allopurinol. Mice were orally administered once daily with 250 mg/kg potassium oxonate for 7 continuous days to create the model, and then three doses of bergenin and allopurinol were orally initiated on the day 1 h after potassium oxonate was given, separately. Serum uric acid, creatinine and urea nitrogon levels, as well as urinary uric acid and creatinine levels were measured. mRNA and protein expression levels of mouse kidney u-rate transporter 1(URAT1), and glucose transporter 9(GLUT9) were also determined. Results Compared with hyperuricemic model group, bergenin significantly reduced serum uric acid, creatinine and urea nitrogon levels, in-creased 24 h uric acid and creatinine excretion, and fractional excretion of uric acid in hyperuricemic mice;mRNA and protein levels of mURAT1 and mGLUT9 were also markedly down-regulated. Conclusion Anti-hyperuricemia effect of bergenin is attributed to the enhancement of uric acid excretion and reversion of mouse urate transporters o-ver-expression.
3.Hepatitis B virus surface antigen quantitative value in different stages of chronic hepatitis B virus infection
Hongxing ZHOU ; Ying'an JIANG ;
Chinese Journal of Postgraduates of Medicine 2014;37(24):15-18
Objective To investigate hepatitis B virus surface antign (HBsAg) quantitative value quantitatively in serum of chronic hepatitis B virus (HBV) infection patients with different clinical stages,at the same time,to explore the correlation between HBV DNA,patient's age and HBsAg quantitative values.Methods Collected 774 cases without antiviral treatment of chronic HBV infection from our hospital,according to the clinical features,divided cases into six groups:chronic HBV carrier group (102 cases),inactive HBsAg carrier group (211 cases),hepativis B virus e antigen (HBeAg) positive chronic hepatitis B group (236 cases),HBeAg negative chronic hepatitis B group (114 cases),HBeAg positive hepatitis B cirrhosis group (52 cases),HBeAg negative hepatitis B cirrhosis group (59 cases).Used chemiluminescence immunoassay particles analysis to determine HBsAg quantitative value in serum in patients,used real-time fluorescent quantitative polymerase chain reaction method to determine HBV DNA quantitative value in patients,and then compared differences among groups.Results HBsAg quantitative value from high to low respectively were chronic HBV cartier group,HBeAg positive chronic hepatitis B group,HBeAg negative chronic hepatitis B group,inactive HBsAg carrier group,HBeAg negative hepatitis B cirrhosis group,HBeAg positive hepatitis Bcirrhosis group,the median quantitative value of HBsAg were [7.80 (6.69-8.32),7.11 (5.42-8.27),6.57 (5.66-7.53),6.38 (4.39-7.40),6.22 (4.84-6.91),6.13 (5.48-7.01)] ; positive correlation was found between HBsAg quantitative value and HBV DNA in HBeAg positive chronic hepatitis B group and HBeAg negative chronic hepatitis B group (r =0.714,0.390,P < 0.01); negative correlation was found between HBsAg quantitative value and age in chronic HBV infection(r =-0.416,P < 0.01) ; Monitored HBsAg quantitative value of inactive HBsAg carriers after the age 40 had important clinical value.Conclusions HBsAg quantitative value is different in the various phases of chronic HBV infection.HBV DNA levels and age are related with HBsAg quantitative value.HBsAg quantitative value should be monitored in inactive HBsAg carriers after the age 40.
4.Ectopic osteogenetic ability of heterogenous composite fully deproteinized bone compounded by autologous red marrow in vivo
Hongxing ZHOU ; Hongxian GUO ; Hongbin YANG
Chinese Journal of Tissue Engineering Research 2005;9(6):192-194
BACKGROUND: Although bone tissue engineering has been developed rapidly, ideal scaffold materials are deficient and the ability of tissue engineered bone constructed in vitro was reported inconsistently.OBJECTIVE: To study the ectopic osteogenesis of the implantation in vitro with composite fully deproteinized bone(CFDB) compounded by autologous red marrow.DESIGN: A randomized controlled study.SETTING: Department of Orthopaedics, the 152 Hospital of Jinan Military Area Command of Chinese PLA; Ward for Retired Cadres, First People's Hospital of Pingdingshan City; Department of Orthopaedics, Chaochuan Mine Hospital of Pingdingshan Coal Industrial Group.MATERIALS: The study was completed in the Department of Orthopaedics,the 152 Hospital of Jinan Militatry Area Command of Chinese PLA. Totally 40 Japanese flap-eared white rabbits of 4 months old of either gender with a body mass from 2.0 kg to 2.5 kg were involved (provided by the Laboratory for Experimental Animals of the 152 Hospital in Pingdingshan city).INTERVENTION: Calf CFDB scaffold materials were compounded by rabbit autologous red marrow after physical and chemical managements, which were then implanted into the thigh muscles of 40 rabbits. The osteogenetic abilities of the materials compounded by autologous red marrow were analyzed at 4 weeks and 8 weeks after operations respectively.ysis of the implanted bone.RESULTS: ALP activities were(63.48 ± 0. 873) and (69. 527 ± 0. 635) IU/L respectively, and the results of osteogenetic quantitative analysis were (2.50 ±0.38) and(4.70 ±0.67) points of rabbits in the study group at week 4 and week 8 respectively. ALP activities were(2.50±0.38) and (4.70 ± 0. 67) IU/L and the results of osteogenetic quantitative analysis were( 1.90 ± 0.54 ) and(3.40 ± 0.54) points of rabbits in the control group at week 4 and week 8 respectively. The results indicated that the osteogenetic ability of the study group was significantly higher than that of the control group at the same time point, and the neogenetic bone increased along with the prolongation of the implantation time.CONCLUSION: CFDB could be applied as scaffold materials for bone tissue engineering, and its osteogenesis increases significantly after being compounded by autologous red marrow.
5.Integrator complex and its research progress
Lanlan SI ; Hongxing ZHANG ; Gangqiao ZHOU
Military Medical Sciences 2015;(5):398-402
The integrator complex is multifunctional and contains at least 12 evolutionarily conserved subunits in hu-mans.It interacts with the C-terminal tail of the largest subunit of RNA-polymeraseⅡ ( RNAPⅡ) to promote 3′-end pro-cessing of small nuclear RNA (snRNA) U1/U2.It also interacts with RNAPⅡ, NELF and Spt5 to regulate NELF-mediated RNAPⅡpause/release and processivity at coding genes .Recently, the integrator complex is also reported to be involved in DNA damage response , dynein recruitment to the nuclear envelope , integrity of Cajal bodies , adipose differentiation , hem-atopoiesis , ciliogenesis , tumorigenesis and generation of viral microRNAs .This review discusses related research progress in the integrator complex .
6.Advances in personalized medicine of hematologic neoplasms and related pharmacogenetics
Hongxing LIU ; Fengye ZHOU ; Yang ZHANG
Journal of Leukemia & Lymphoma 2016;25(7):385-388,393
The efficacy of hematological tumor drugs has shown inter-patient variability. Pharmacogenomics focuses on gene polymorphisms of drug metabolizing enzymes, drug transporters and therapeutic targets and its impact on pharmacokinetics (PK)/pharmacodynamics (PD). Initial dose and adverse reaction can be predicted based on inherited gene polymorphisms, and therapeutic drug monitoring (TDM) also helps to adjust drug dosage in the course of treatment. Thus can achieve rational drug use and personalized medicine, and improve the efficacy and reduce the incidence of adverse drug reactions. This article will introduce the relevant research progress in recent years, and the concept of personalized medication fingerprints is proposed.
7.Brief discussion on "Sanli acupoint for du-fu diseases".
Li ZHOU ; Quan HE ; Yu XIN ; Hongxing ZHANG
Chinese Acupuncture & Moxibustion 2015;35(7):723-726
The connotations of "du-fu" and "Sanli" in "Sanli acupoint for du-fu diseases" are discussed in this paper, which can provide theoretical foundation for the clinical application of "Sanli acupoint for du-fu diseases". Based on ancient literature combined with related theories in the Huangdi Neijing (Yellow Emperor's Canon of Internal Classic), a deep discussion is performed through the relationship between Zusanli (ST 36) and stomach, indication and mechanism of Zusanli (ST 36) on du-fu diseases and comparison between Zusanli (ST 36) and Shousanli (LI 10). It is believed that "du" should be pronounced as "dŭ", meaning stomach, and it indicates that Zusanli (ST 36) is closely related to stomach and spleen when it is used for du-fu diseases; "fu" means abdomen area, including liver-gallbladder, spleen, stomach-intestine, kidney, uterus, triple energizer; "sanli' means exclusively the acupoint of Zusanli (ST 36).
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Medicine in Literature
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8.Determination of Imatinib and Dasatinib in Leukemia Patients Plasma by HPLC-MS/MS
Lei WANG ; Fengye ZHOU ; Chunfei JIANG ; Beibei TAO ; Hongxing LIU
Journal of Modern Laboratory Medicine 2016;(1):128-131
Objective To develop a HPLC-MS/MS method for determination of Imatinib and Dasatinib in CML patient,and make it used in clinic trial.Methods The separation was performed on a Ultimate XB-C18 column with a mobile phase of water(containing 2 mmol/L ammonium acetate and 0.1 ml/dl formic acid)and methanol(containing 0.1 ml/dl formic acid). The way of eluting was gradient.Mass spectrum detection method was ESI positive ion mode and monitoring Imatinib m/z 494.5>394.3 and Dasatinib m/z 488.3>401.3.Results The standard curve of Imatinib was linear over the range of 0.05~7.5 μg/ml,Y =5.6×105 X+5× 103 (R =0.999 8).Thestandard curve of Dasatinib was linear over the range of 5~250 ng/ml,Y =211X+66.6(R=0.999 6).The relative recovery was among the range of 90%~107%.RSDs of intra-and inter-day validation were less than 10%.Conlusion This method is convenient,accurate and rapid,and can be used for the deter-mination of Imatinib and Dasatinib in clinic test.
9.Effect of electro-acupuncture at Fenglong (GV 16) on nitric oxide and endothelin in rats with hyperlipidemia
Li ZHOU ; Hongxing ZHANG ; Lingguang LIU ; Wenjun WAN
Journal of Integrative Medicine 2008;6(1):89-92
OBJECTIVE: To investigate the effect of electro-acupuncture (EA) at Fenglong (GV 16) on body weight, blood lipids, nitric oxide (NO) and endothelin (ET) in rats with hyperlipidemia (HLP). METHODS: Eighty Wistar rats were randomly divided into normal control group (fed normal diet), untreated group (fed a high-fat diet), EA-treated group (fed a high-fat diet plus EA therapy) and pravastatin-treated group (fed a high-fat diet plus pravastatin tablet). There were 20 rats in each group. The body weight and the blood content of total cholesterol (TC), triacylglycerol (TG), high density lipoprotein-cholesterol (HDL-C), low density lipoprotein-cholesterol (LDL-C), NO the and ET of the rats in different groups were measured before experiment and after 30-day treatment. A modified method of cardiac puncture for blood sampling was used for blood collection. RESULTS: Compared with the normal control group, the body weight and the levels of TC, TG, LDL-C and ET in the untreated group were significantly elevated (P<0.01, P<0.05), while the levels of HDL-C and NO were obviously decreased (P<0.05). The body weight and the levels of TC, TG, LDL-C demonstrated significant reduction in pravastatin-treated group and EA-treated group as compared with the untreated group (P<0.01), and the NO content in pravastatin-treated group and EA-treated group was higher than that in the untreated group (P<0.01). Compared with the untreated group, HDL-C level was elevated significantly in pravastatin-treated group, while HDL-C level in EA-treated group was not changed significantly, and there was significant difference in the HDL-C level between pravastatin-treated group and EA-treated group (P<0.01). The level of ET was decreased obviously in pravastatin-treated group (P<0.05), while the level of ET in EA-treated group was not changed significantly (P>0.05). CONCLUSIONS: Both EA therapy and pravastatin have efficient regulation of body weight and the content of TC, TG, LDL-C and NO in HLP rats. To some extent, they are able to regulate the imbalance between ET and NO content under the condition of HLP. Western medicine such as pravastatin can regulate the HDL-C level in HLP rats, while the effect of EA therapy on regulation of the HDL-C level is limited.
10.Biological functions of alternative polyadenylation
Liang YANG ; Hongxing ZHANG ; Ying CUI ; Gangqiao ZHOU
Military Medical Sciences 2015;(5):393-397
Alternative polyadenylation ( APA) is a widespread phenomenon and an important layer of gene regulation . APA contributes to the complexity of the transcriptome by allowing a single gene to encode multiple mRNA isoforms that dif -fer either in their coding sequence or in their 3′untranslated regions (3′UTR).The length of the 3′UTR can affect the sta-bility, localization and efficiency of the messenger RNAs ( mRNAs) by altering binding sites of RNA binding proteins or mi-croRNAs(miRNAs).The polyadenylation process , mechanisms governing APA and biological consequences resulting from APA are only starting to be deciphered .Here, we review the research progress in APA .