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Objective:To evaluate the optimization efficacy of ropivacaine mixed with nalbuphine for epidural labor analgesia through comparison with ropivacaine mixed with sufentanil in primiparas.Methods:Four hundred and forty primiparas with a singleton fetus in vertex presentation without abnormal fetus, aged 19-36 yr, at 37-42 weeks of gestation, who were suitable and volunteered to receive epidural labor analgesia, were selected and randomly divided into observation group (NR group, n=220) and conventional group (C group, n=220).Epidural labor analgesia solution contained nalbuphine 40 mg and ropivacaine 120 mg in 150 ml of normal saline in group NR.Epidural labor analgesia solution contained sufentanil 50 μg and ropivacaine 120 mg in 150 ml of normal saline in group C. The analgesia pump was set up to deliver a 5 ml bolus dose with a 20-min lockout interval, programmed intermittent bolus 10-15 ml/h and background infusion at 2 ml/h after an initial dose of 15 ml to maintain VAS score <3.The length of labor, adverse reactions during labor analgesia, neonatal Apgar score, parameters of umbilical artery blood gas analysis and neonatal behavioral neurological assessment score were recorded. Results:Compared with group C, the incidence of urinary retention, pruritus, nausea and vomiting and fever at birth was significantly decreased in group NR ( P<0.05).The duration of the first and second stages of labor, neonatal Apgar score, pH value of umbilical artery blood, lactate concentrations, and neonatal behavioral neurological assessment score were within the normal range in both groups, and there was no significant difference between the two groups ( P>0.05). Conclusions:Compared with conventional medication, nalbuphine mixed with ropivacaine has the same efficacy when used for epidural labor analgesia in primiparas, but it has a certain optimization efficacy in terms of safety.
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Objective To investigate the analgesic effect of ultrasound-guided paravertebral nerve block on patients with radical mastectomy. Methods Sixty female patients who underwent unilateral radical mastectomy with general anesthesia in the Second Hospital of Shanxi Medical University from March 2016 to January 2018 were enrolled, and 58 cases were actually studied according to the inclusion and exclusion criteria. According to the random number table method, the patients were randomly divided into simple general anesthesia group (GA group, 30 cases) and paravertebral nerve block combined with general anesthesia group (PG group, 28 cases). In the PG group, 15 ml of 0.4％ ropivacaine was injected into the T2-T6 paraspinal space on the surgical side with ultrasound. All patients received general anesthesia with intravenous propofol induction, and were given a self-controlled intravenous analgesia pump. When the visual analogue scale (VAS) score was ≥7 points, the patient was given intravenous morphine 5-10 mg. The t-test andχ2 test were used to compare the hemodynamic parameters at different time points, the VAS score at different time after operation, the postoperative analgesia pump use, and postoperative adverse reactions. Results There were no significant differences in hemodynamic parameters between the PG group and the GA group at different times (all P>0.05). The static VAS scores of the PG group at different time points were lower than those of the GA group, but the difference was not statistically significant (all P> 0.05). The cough dynamic VAS scores of the patients in the PG group were lower than those in the GA group at 2, 6, 12, and 24 h after surgery, and the difference was statistically significant (all P<0.05). The total amount of sufentanil [(35±10)μg vs. (50±8) μg, t=6.308, P<0.05], the number of remedial analgesia within 48 hours after operation [(550±105) mg vs. (680±128) mg, t=4.240, P<0.05], and the number of effective presses of analgesia pump (3.1±1.5 vs. 10.0± 3.4, t=10.117, P<0.05) in the PG group were significantly lower than those in the GA group. The adverse reactions such as nausea, vomiting and lethargy in the PG group were significantly lower than those in the GA group, and the difference was statistically significant (χ2 values were 3.869 and 2.334, both P< 0.05). The postoperative analgesia comfort rate of the PG group was significantly higher than that of the GA group [96.4％(27/28) vs. 70.0％(21/30)], and the difference was statistically significant (χ2=7.089, P<0.05). Conclusion The combined use of general anesthesia and ultrasound-guided paravertebral nerve block for postoperative analgesia in patients with radical mastectomy is superior to PCIA.
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Protein kinase C (PKC) is a special kinase widely distributed in various tissues and cells of human body and involved in signal transduction of hormones and cytokines.It plays an important role in the pathogenesis of many diseases.Therefore,altering the activity of protein kinase C may be an effective treatment for many diseases.This article reviews the progress of protein kinase C in liver diseases.
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Objective@#To investigate the contamination status of Salmonella, Vibrio parahaemolyticus and Staphylococcus aureus and bacterial resistance in retail meat products in Taiyuan, Shanxi Province.@*Methods@#In the epidemic season of diarrhea in 2017, poultry and meat product specimens were randomly collected from the farmer′s markets and supermarkets of 10 districts and counties of Taiyuan. Salmonella, Vibrio parahaemolyticus and Staphylococcus aureus were isolated form these specimens. Serotypes of Salmonella strains were analyzed. ELSIA was used to detect Staphylococcus aureus enterotoxin (A-E). Vibrio parahaemolyticus isolates were tested for the virulence genes encoding direct hemolysin (tdh) and indirect hemolysin (trh). Antibiotic resistance of the three food-borne pathogens were analyzed using microdilution methods.@*Results@#A total of 38 food-borne pathogens were isolated from 123 poultry and livestock meat product specimens with a positive rate of 30.9%, of which mainly were Salmonella (26 strains, 21.1%), followed by Vibrio parahaemolyticus (8 strains, 6.5%) and Staphylococcus aureus (4 strains, 3.3%). The 26 strains of Salmonella belonged to 10 serotypes. The Salmonella strains isolated from pork specimens had diverse serotypes. Salmonella serovar Derby, Salmonella serovar Gold-coast and Salmonella serovar Liverpool were isolated from raw and cooked pork food for the first time in Taiyuan. All Salmonella strains isolated form chicken products were Salmonella enteritis. The enterotoxin types of the four Staphylococcus aureus strains were three E-type and one complex type (A/E). All Vibrio parahaemolyticus isolates were negative for tdh or trh gene. Ampicillin, chloramphenicol, streptomycin, sulphonamides and tetracyclines (ACSSuT) resistance was prevalent in multi-drug resistant (MDR) Salmonella strains, but there was high sensitivity to fluoroquinolones and cephalosporins. MDR Staphylococcus aureus accounted for 75%. No third-generation cephalosporin- or fluoroquinolone-resistant or MDR Vibrio parahaemolyticus strains were isolated.@*Conclusions@#There were food-borne multi-pathogenic bacteria contamination in retail raw and cooked meat products in Taiyuan. Salmonella strains had diverse serotypes and high MDR rate. It was suggested that the regulatory authorities should strengthen the management of antibiotic use in aquaculture and specialized laboratory-based monitoring of meat supply chain.
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Objective To investigate the contamination status of Salmonella, Vibrio parahaemo-lyticus and Staphylococcus aureus and bacterial resistance in retail meat products in Taiyuan, Shanxi Prov-ince. Methods In the epidemic season of diarrhea in 2017, poultry and meat product specimens were ran-domly collected from the farmer's markets and supermarkets of 10 districts and counties of Taiyuan. Salmo-nella, Vibrio parahaemolyticus and Staphylococcus aureus were isolated form these specimens. Serotypes of Salmonella strains were analyzed. ELSIA was used to detect Staphylococcus aureus enterotoxin (A-E). Vibrio parahaemolyticus isolates were tested for the virulence genes encoding direct hemolysin (tdh) and indirect hemolysin (trh). Antibiotic resistance of the three food-borne pathogens were analyzed using microdilution methods. Results A total of 38 food-borne pathogens were isolated from 123 poultry and livestock meat product specimens with a positive rate of 30. 9％ , of which mainly were Salmonella (26 strains, 21. 1％ ), followed by Vibrio parahaemolyticus (8 strains, 6. 5％ ) and Staphylococcus aureus (4 strains, 3. 3％ ). The 26 strains of Salmonella belonged to 10 serotypes. The Salmonella strains isolated from pork specimens had diverse serotypes. Salmonella serovar Derby, Salmonella serovar Gold-coast and Salmonella serovar Liver-pool were isolated from raw and cooked pork food for the first time in Taiyuan. All Salmonella strains isolated form chicken products were Salmonella enteritis. The enterotoxin types of the four Staphylococcus aureus strains were three E-type and one complex type (A/ E). All Vibrio parahaemolyticus isolates were negative for tdh or trh gene. Ampicillin, chloramphenicol, streptomycin, sulphonamides and tetracyclines (ACSSuT) resistance was prevalent in multi-drug resistant (MDR) Salmonella strains, but there was high sensitivity to fluoroquinolones and cephalosporins. MDR Staphylococcus aureus accounted for 75％ . No third-generation cephalosporin- or fluoroquinolone-resistant or MDR Vibrio parahaemolyticus strains were isolated. Conclu-sions There were food-borne multi-pathogenic bacteria contamination in retail raw and cooked meat prod-ucts in Taiyuan. Salmonella strains had diverse serotypes and high MDR rate. It was suggested that the regu-latory authorities should strengthen the management of antibiotic use in aquaculture and specialized laborato-ry-based monitoring of meat supply chain.
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The main metastatic pathway for cervical cancer is lymph node metastasis. Sentinel lymph nodes are the first site of lymph node metastasis. Lymph node metastasis is a result of lymph node micrometastasis. However,lymph node micrometastasis is usu-ally neglected by traditional histopathology,and undetected lymph node micrometastases may lead to recurrence. This article will intro-duce the progress of research on sentinel lymph node micrometastasis in cervical cancer in recent years.
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Objective To investigate the regulation of interferon α-1b (IFNα-1b) on protein kinase Cε(PKCε) and protein kinase Cα(PKCα) which inhibit the fibrosis of hepatic stellate cells (HSC) ,and to explore its mechanism .Methods HSC-T6 cells were treated with different levels of IFNα-1b (100 , 200 ,400 ,800 and 1000 U/mL) and the proliferation of HSC-T6 cells was analyzed by methyl thiazol tetrazolium (MTT) assay .Changes of hydroxyproline level were analyzed .The expressions of PKCεand PKCαwere detected by immunofluorescence staining . PKCε, PKCα,β-catenin and Survivin mRNA levels were detected by RT-PCR . PKCε, PKCα,β-catenin and Survivin protein levels were detected by Western blot . Variance analysis was conducted by using one-way ANOVA approach . Results The inhibition rates of 100 , 200 , 400 , 800 and 1000 U/mL IFNα-1b treatment after 24 hours of administration were (15 .85 ± 1 .05)％ ,(36 .59 ± 1 .03)％ ,(45 .12 ± 1 .05)％ ,(50 .00 ± 1 .01)％ and (62 .20 ± 1 .02)％ ,respectively ,with statistically significant differences among groups (F=27 .478 , P<0 .01) .The 48h inhibition rates were (20 .87 ± 1 .09)％ ,(43 .96 ± 1 .08)％ ,(53 .85 ± 1 .08)％ ,(64 .84 ± 1 .06)％ and (74 .72 ± 1 .07)％ ,respectively ,with statistically significant differences among groups (F=25 .321 , P< 0 .01 ) . half maximal inhibitory concentration at 48 h was 343 .47 U/mL . The levels of hydroxyproline in 100 ,200 and 400 U/mL IFNα-1b groups were (7 .48 ± 0 .28) ,(6 .26 ± 0 .17) and (3 .86 ± 0 .20) μg/mL ,respectively ,which were lower than that in control group (8 .47 ± 0 .32) μg/mL .The differences were all statistically significant (t=4 .033 ,10 .564 and 21 .160 ,respective ,all P<0 .05) .The fluorescence intensities of PKCεin 100 ,200 and 400 U/mL IFNα-1b groups were all lower than that of control group .The differences were statistically significant (t=1 .984 ,2 .457 and 7 .771 ,respectively ,all P<0 .05) .The fluorescence intensities of PKCαwere also significantly lower than that of control group (t=9 .232 ,15 .921 and 22 .222 ,respectively ,all P< 0 .01) .With the increase of IFNα-1b level ,the levels of HSC-T6 PKCε,PKCα,β-catenin and survivin were significantly lower than those of control group (t=7 .020 ,24 .562 ,45 .701 and 14 .241 ,respectively ,all P<0 .01) .With the increase of IFNα-1b ,the levels of HSC-T6 PKCε,PKCα,β-catenin and survivin were significantly lower than those of control group (t=9 .564 ,4 .409 ,10 .036 and 6 .794 ,respectively ,all P<0 .01) .Conclusions IFNα-1b can down-regulate the expression of collagen in hepatic stellate cells in a dose-dependent manner ,reduce the expressions of PKCε,PKCα,β-catenin and Survivin ,and inhibit the proliferation of HSC-T6 hepatic stellate cells .
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Objective To investigate the effect of angiotensin Ⅱ on protein kinase Cε (PKCε) and protein kinase Cα (PKCα) expression in hepatic stellate cells.Methods Hepatic stellate cell (HSC)-T6 cells were treated with different concentrations of angiotensin Ⅱ and the proliferation of HSC-T6 cells was detected by methyl thiazolyl tetrazolium (MTT) assay.The expression of PKCε and PKCα was detected by immunofluorescence staining.PKCε and PKCα mRNA levels was detected by real time polymerase chain reaction (PCR).Results Angiotensin Ⅱ concentrated the proliferation of HSC-T6 cells and the level of hydroxyproline (F =25.321,13.283,P ＜ 0.001) and showed a dose-dependent effect.With the increase of angiotensin Ⅱ concentration,PKCε significantly increased and translocated in the cell membrane;PKCα increased significantly,especially in transplanted membrane and cytoplasm (F =21.387,19.431,P ＜0.01),and showed obvious dose effect.Meanwhile,Angiotensin Ⅱ increased the expression of PKCε and PKCα,and induced cell proliferation by up-regulating PKCε and PKCα mRNA levels (F =13.279,15.174,P ＜ 0.05).Conclusions Angiotensin Ⅱ can up-regulate the expression of collagen in hepatic stellate cells in a dose-dependent manner,increase the expression of protein kinase Cε and Cα,and promote the proliferation of hepatic stellate cells.
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Through reviewing ancient and modern literatures,the effect evolution and disease treatment changes of Belamcanda chinensis were understood.The pharmacological experiments were used to verify its main effects.The combination of featured advantages of traditional Chinese medicine (TCM) and modern science and technology contributed to the promotion of TCM modernization.It had important significance for the development of effective components,selection of disease types in the treatment for research and development of new TCM drugs.The indication of Belamcanda chinensis was verified from textual research.The treatment of disease types by Belamcanda chinensis was verified from medical books.The treatment of disease types by Belamcanda chinensis compound was analyzed based on the Pujifang database management system.Main indications of Belamcanda chinensis were summarized.Modern pharmacological studies on anti-inflammatory mechanism of main components of Belamcanda chinensis were combined to screen animal models and investigation indexes for the preliminary verification of the efficacy of Belamcanda chinensis.The comprehensive application of classical herbal medicine books and prescription database analysis results showed that removing phlegm and relieving sore throat were the efficacy of Belamcanda chinensis,which was an important medicine in the treatment of pharyngitis and sore throat.In the modern research,serum of experimental group,IL-4 in throat tissues,as well as IgE and LTC4 level in serum and lung tissues were significantly reduced compared to the model group (P＜0.05).It was concluded that the treatment effect of Belamcanda chinensis extract to chronic pharyngitis may be through the decreasing of IgE level in serum and lung tissues,inhibiting IL-4 expression in serum and throat tissues,and the LTC4 expression in serum.
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OBJECTIVE:To study the effects of Dianxianqing granule on the interleukin(IL-6)content and glial fibrillary acid-ic protein(GFAP),ionized calcium linker molecules 1(Iba-1)expressions in hippocampus tissue of rats with kainate-induced epi-lepsy,and explore its mechanism of preventing and treating epilepsy. METHODS:Rats were randomly divided into sham operation group (distilled water),model group (distilled water),phenytoin group (0.03 g/kg,positive control) and Dianxianqing granule low-dose,medium-dose,high-dose groups(4.74,9.47,18.94 g/kg,calculated by crude drug),20 in each group. Rats were intra-gastrically administrated once a day,for 7 d. After 1 h of last administration,except for sham operation group,rats in other groups received single injection of kainite in hippocampus CA1 of left side to induce the epilepsy model. Behavioral changes and death of rats were observed. After 24 h of modeling,enzyme-linked immunosorbent method was used to detect the IL-6 content in hippocam-pus tissue of rats,Nissl staining was used to count the hippocampus neurons,and immunohistochemistry was used to detect the GFAP,Iba-1 expressions in hippocampus tissue of rats. RESULTS:Compared with sham operation group,rats in model group had obvious epilepsy symptoms after modeling,and parts of rats died;IL-6 content and number of neurons in hippocampus tissue were obviously decreased (P<0.01), while GFAP, Iba-1 expressions were obviously enhanced (P<0.01). Compared with model group,epilepsy symptoms and death in each administration group had improved,while IL-6 content in hippocampus tissue were in-creased to varying degrees,with no statistical significance (P>0.05). The numbers of neurons in phenytoin group,Dianxianqinggranule medium-dose, high-dose groups were obviously in-creased(P<0.01);GFAP expression was obviously decreased (P<0.01). Iba-1 expressions in hippocampus tissue in phenyt-oin group,Dianxianqing granule high-dose group were obvi-ously decreased (P<0.01). CONCLUSIONS:Dianxianqing granule can play the role in preventing and treating epilepsy by inhibiting GFAP,Iba-1 expressions in hippocampus tissue and in-creasing the number of neurons in hippocampus tissue.
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Objective To investigate the effects ofWenyujinessential oil on tau protein phosphorylation in mice with Alzheimer Disease (AD); To discuss the relevant mechanism of action.MethodsSixty Kunming mice were divided into six groups randomly: sham-operation group, model group,Wenyujin essential oil low- and high-dose group, donepezil group andShenzhiling group.β-Amyloid protein (Aβ25-35) was infused into the hippocampal of mice. Mice in each group were given relevant medicine for gavage for 15 d. After the last administration, immunohistochemistry was used to detect the expressions of tau protein phosphorylation points (Ser 404 and Thr 231). Western blot was used to detect tau protein phosphorylation points and the expression of PI3K/Akt protein. Results Compared with sham-operation group, tau protein phosphorylation points in the model group increased (P<0.05), but the phosphorylation levels of PI3K and Akt decreased significantly (P<0.05). Compared with the model group, tau protein phosphorylation (Thr231 and Ser404) inWenyujin essential oil high-dose group decreased significantly (P<0.05), and the phosphorylation levels of PI3K and Akt increased(P<0.01). ConclusionWenyujinessential oil can inhibit tau protein phosphorylation in mice. The possible mechanism may be related to the PI3K/Akt signal pathway.
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OBJECTIVE:To study the effects of Dianxianqing granule on the interleukin(IL-6)content and glial fibrillary acid-ic protein(GFAP),ionized calcium linker molecules 1(Iba-1)expressions in hippocampus tissue of rats with kainate-induced epi-lepsy,and explore its mechanism of preventing and treating epilepsy. METHODS:Rats were randomly divided into sham operation group (distilled water),model group (distilled water),phenytoin group (0.03 g/kg,positive control) and Dianxianqing granule low-dose,medium-dose,high-dose groups(4.74,9.47,18.94 g/kg,calculated by crude drug),20 in each group. Rats were intra-gastrically administrated once a day,for 7 d. After 1 h of last administration,except for sham operation group,rats in other groups received single injection of kainite in hippocampus CA1 of left side to induce the epilepsy model. Behavioral changes and death of rats were observed. After 24 h of modeling,enzyme-linked immunosorbent method was used to detect the IL-6 content in hippocam-pus tissue of rats,Nissl staining was used to count the hippocampus neurons,and immunohistochemistry was used to detect the GFAP,Iba-1 expressions in hippocampus tissue of rats. RESULTS:Compared with sham operation group,rats in model group had obvious epilepsy symptoms after modeling,and parts of rats died;IL-6 content and number of neurons in hippocampus tissue were obviously decreased (P<0.01), while GFAP, Iba-1 expressions were obviously enhanced (P<0.01). Compared with model group,epilepsy symptoms and death in each administration group had improved,while IL-6 content in hippocampus tissue were in-creased to varying degrees,with no statistical significance (P>0.05). The numbers of neurons in phenytoin group,Dianxianqinggranule medium-dose, high-dose groups were obviously in-creased(P<0.01);GFAP expression was obviously decreased (P<0.01). Iba-1 expressions in hippocampus tissue in phenyt-oin group,Dianxianqing granule high-dose group were obvi-ously decreased (P<0.01). CONCLUSIONS:Dianxianqing granule can play the role in preventing and treating epilepsy by inhibiting GFAP,Iba-1 expressions in hippocampus tissue and in-creasing the number of neurons in hippocampus tissue.
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Objective To evaluate clinical effect of rabeprazole combined with teprenone capsules in treatment of gastric ulcer by marking targeting biopsy and leptin.Methods A total of 118 patients with active gastric ulcer confirmed by endoscopy were randomly divided into two groups.Patients in the treatment group (n=60) were given rabeprazole 10 mg,bid,and teprenone capsules 50 mg,tid.Patients in the control group (n=58) were given rabeprazole 10 mg,bid.Both groups were treated continuously for 56 days.Before and after treatment,2 groups were labeled with biopsy,the clinical efficacy and the healing rate of two groups were recorded,the quality of healing and the expression of leptin were compared.The level of leptin was tested after treatment.Results After 10 days,the difference of clinical curative effect was not statistically significant (P>0.05).After 56 days,the difference of clinical curative effect was statistically significant (P<0.05);ulcer healing rate (93.33%)in treatment group was higher than that of control group (72.41%);ulcer healing quality (93.33%) in treatment group was higher than that of control group (58.62%);leptin level of treatment group was lower than that of the control group;gastric ulcer recurrence rate (3.8%) in treatment group was lower than that of the control group (24.0%) (all P<0.05).Conclusion Rabeprazole combined with teprenone in the treatment of gastric ulcer is better than rabeprazole.Marking targeting biopsy and leptin can be used to evaluate the healing quality of gastric ulcer more accurately,which can be an evaluation index of the quality of gastric ulcer healing and used as an indicator of the quality of gastric ulcer healing.
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Objective To analyse the expression of alpha-fetoprotein variant-L3(AFP-L3)and glypican-3(GPC-3)in primary he-patic carcinoma(PHC)with different concentration of alpha-fetoprotein (AFP),so as to provide references for the diagnosis of PHC.Methods 240 cases of outpatients,inpatients and individuals on physical examination were selected as subjects and serum levels of AFP-L3 and GPC-3 were detected.All of the subjects were divided into negative group(0≤AFP<20 ng/mL),low concen-tration group(20≤AFP<400 ng/mL)and high concentration group(AFP≥400 ng/mL)according to the serum levels of AFP.Ser-um levels of AFP-L3 and GPC-3 were compared among the three groups.And the sensitivity,specificity and accuracy of single de-tection of AFP-L3 or GPC-3 and those of combined detection of AFP-L3 and GPC-3 were compared as well.Results The serum levels of AFP-L3 and GPC-3 in the low concentration group and high concentration group were both higher than those in the nega-tive group,and those in the high concentration group were also higher than those in the low concentration group,had statistically significant differences(P < 0.05 ).The sensitivity,specificity and accuracy of combined detection of AFP-L3 and GPC-3 were 84.4%,95.9% and 93.8% respectively,which were higher than those of single detection of AFP-L3 or GPC-3.Conclusion Com-bined detection of AFP-L3 and GPC-3 could improve the sensitivity,specificity and accuracy for diagnosis of PHC,which has clinical significance for the diagnosis of PHC.
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Objective To investigate the change characteristics of serum ferritin(SF)and parathormone (PTH)levels in differ-ent stages of chronic kidney disease(CKD)and their correlation with serum beta 2-microglobulin(β2-MG).Methods The levels of serum PTH,SF andβ2-MG in different stages of CKD were detected and the detection results were compared with those in the con-trol group.The correlation between serum SF and PTH withβ2-MG in each stage of CKD was analyzed.Results The level of ser-um PTH,SF andβ2-MG in the compensation group had no statistical difference compared with the control group (P >0.05),while which had statistical differences among the decompensation group,renal failure group and uremia group (P <0.05)The correlation analysis showed that serum PTH was positively correlated with serumβ2-MG in 145 cases(r=0.92,P <0.05),and the serum SF level was also positively correlated with serumβ2-MG level(r=0.92,P <0.05).Conclusion Detecting serum PTH,SF andβ2-MG levels possesses the important clinical significance for understanding CKD condition and prognosis.
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Objective To explore the different concentrations of glycyrrhizin on hepatic stellate cell proliferation and its regulation mechanism.MethodsHepatic stellate cell proliferation rate of three different concentrations of glycyrrhizin was detected by MTT assay.The expression of cyclin E was detected by immunocytochemistry.ResultsMTT assay was used to detect the cell proliferation inhabitation in different concentration groups,from control group 0.8 mg/L glycyrrhizin group to 1.2 mg/L glycyrrhizin group and 1.6 mg/L glycyrrhizin group.The cell proliferation inhibited rates were 0,2.73%,14.75 % and 25.96%.The difference was significant (P＜0.05).The numbers of Cyclin E positive cells in different concentrations of glycyrrhizin group were significantly different compared with control group,and it was concentration dependently decreased (P＜0.01).ConclusionsGlycyrrhizin concentration dependently inhibited rat hepatic stellate cells proliferation and it could reduce the expression of cyclin E and inhibit the proliferation of rat hepatic stellate cells.
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OBJECTIVE: The investigation of curing liver disease with stem cell makes a notable performance. This article intends to review the status of clinical and empirical study of stem cell transplants. DATA SOURCES: A computer-based search was conducted in Pubmed for English articles about bone marrow stem cells cure liver ailment published between January 1995 and June 2006 with the Keywords of "bone marrow stem cell, hemopoietic stem cells, mesenchymal stem cells, hepatic fibrosis". Meanwhile, relevant Chinese articles were searched in Chinese Journal Full-text Database with the key words of "bone marrow stem cell, hemopoietic stem cells, mesenchymal stem cells, hepatic fibrosis". STUDY SELECTION: Data were checked in the first trial and articles about the bone marrow stem cell and liver disease therapy are selected, while obvious unrelated literatures or repetitive study were excluded. DATA EXTRACTION: A total of 58 related English articles and 40 Chinese articles were collected, including 36 studies about bone marrow stem cells, 24 researches on mesenchymal stem cells and 14 about hemopoietic stem cells, 30 literatures of them in accordance with the inclusion criteria were reviewed. DATA SYNTHESIS: There are all kinds of stem cells in bone marrow that can differentiate other kinds of cells, including mesenchymal stem cells and hemopoietic stem cells. Both animal trials and clinical researches show that hemopoietic stem cells can differentiate into liver cells and hepatic oval cells and is mature to participate in the liver regeneration. Mesenchymal stem cells are homogeneous cells with multi-differentiation potentials and can be differentiated into liver cells and bile duct cells. Bone marrow stem cell therapy has many merits than traditional methods, for example simple materials, culture in vitro, passage and easy amplification, indicating a great achievement in clinic. CONCLUSION: We can use bone marrow stem cell therapy for all kinds of refractory hepatopathy, such as hepatitis, liver cirrhosis and hepatoma etc. It will not only improve haematogenesis and immune function, but also replace necrosis and lost hepatic cell, leading a perfect boundary of hepatopathy therapy.