A PRELIMINARY STUDY OF THE EFFECTS OF CHEMOTHERAPEUTICAGENTS IN COMBINATION WITH CHINESE HERBAL COMPOUNDS AS IMMUNOMODULATORS IN MOUSE S_(180)

The effect of the Chinese herbal compound (CHC) on solid sarcoma 180 (S180) in Swiss mice was studied either alone or in combination with 5-fluorouracil (5FU), cyclophosphamide (CYT) or mitomycin C (MMC). The preliminary results indicated that combination treatment seemed to possess better antitumor activity than chemotherapy alone. The treatment with CHC alone however had neither an obvious antitumor effect in tumor bearing mice nor toxicity in normal mice. These results show that CHC may stimulate organs of the immune system such as the spleen to be im-munomodulators and enhance the antitumor activity of some chemotherapeutic agents.

Progress of Experimental Researches on Chinese Herbal Compounds for Inducing Tumor Cell Apoptosis

Cell apoptosis is an initiative process of cell death regulated by genes.Inducing cell apoptosis is a new way of cancer treatment.In this paper,the progress in experimental studies on the effect of Chinese herbal compounds （CHC） on the induction of tumor cell apoptosis will be reviewed in terms of major mechanisms （gene expression regulation,cell morphology change,telomerase activity change,and immunity enhancement,etc.）.The study on disassembled CHC,as well as the synergistic effect when in combined use with chemotherapy for inducing apoptosis,is also reviewed here.

Effects of Nano Chinese Herbal Medicine Feed Additive on Growth Performance,Meat Quality and Disease Resistance of Chickens

[Objectives]To explore the effects of nano compound Chinese herbal medicine feed additive on growth performance,meat quality and disease resistance of chickens.[Methods]Chickens were fed with nano compound Chinese herbal medicine feed additive developed by Hunan Polytechnic of Environment and Biology,including 120 chickens in the treatment group and 120 chickens in the control group(CK).The growth performance indices(body weight gain,feed to gain ratio and slaughter index),meat quality indices(pH value,color,drip loss,shear force)and disease resistance indices(morbidity and mortality)of the chickens in the treatment and CK groups were recorded and determined,respectively.[Results]The inclusion of 2%nano compound Chinese herbal medicine feed additive in the diet significantly increased the growth rate,reduced the feed-to-gain ratio and improved the meat quality of the chickens.Supplementing Chinese herbal medicine could increase the pH value and reduce the drip loss and shear force of chicken meat.At the same time,the body's immune function,antioxidant level and resistance against diseases of the chickens fed with nano compound Chinese herbal medicine feed additive were improved.[Conclusions]The inclusion of nano compound Chinese herbal medicine feed additive in the diet can improve the growth performance,meat quality and disease resistance of chickens.

Therapeutic Efficacy of Chinese Herbal Compound Preparation on Viral Diseases in Poultry

[Objective] To develop a new antiviral agent with high and long efficacy, wide spectrum, low toxicity and low cost from traditional Chinese herbal medicine and their compound. [ Method] The ＂Quxie＂ （ i. e. eliminating pathogenic factors） drugs including Hedyotis diffusa and Loni- cera japonica and ＂Fuzheng＂ （ i. e. strengthening body resistance） drugs including Radix astragali and Glycyrrhiza uralensis were taken to form an antiviral herbal compound preparation. Taking the astragalus polysaccharide monomer as control, the experiment was constructed by using the agent to treat some naturally occurring viral diseases, including Newcastle disease （ND）, infectious bursal disease （IBD）, duck viral hepatitis （DVH）, avian influenza （Al） H9 subtype and avian swollen head syndrome. [Ressult] The effective rates of the agent for treatment of the above- mentioned diseases were 87%, 87%, 69%, 100% and 100%, respectively, which were higher than that of astragalus polysaccharide monomer. The cure rates for these diseases were 33%, 37%, 13%, 69% and 75%, respectively, which were significantly higher than that of astragalus polysacchadde monomer （ P 〈 0.01 ）. The rates of poor therapeutic efficacy were 15%, 21%, 24%, 6% and 7%, respectively, which were significantly lower than that of astragalus polysaccharide monomer （P 〈 0.01 ）. [ Condusion] The Chinese herbal compound preparation shows good therapeutic effects on some avian viral diseases, which can decrease mortality rate and improve production performance of poultry more greatly than astragalus polysaccharide monomer.

Effects of Chinese Herbal Compound on the Blood Physiological Indices and Cytokines of Myelosuppressive Mice

[ Objective ] The research aimed to study the effects of Chinese herbal compound on the blcod physiological indices and cytokines of myelosuppressive mice. [ Metho] Myelasuppressive mice model was established by intraperitoneal injection of 80 mg/kg cyclophosphamide. Chinese herbal compound was composed of Houttuynia cordata, Taraxacum mongolicum, Citrus reticulata peel, Atractylodes chinensis, Paeonia sterniana, Atractylodes macrocephala and Angelica sinensis. The effects of Chinese herbal compound and Astragalus polysaccharide at different doses on the blood physiological indices and hematopoietic growth factors of myelosuppressive mice were discussed. [ Result] Myelosuppressive mice medel was successfully established. The total white blood cell count, total nentrephile granulocyte count, total lymphocyte count, total platelet count and the contents of serum interleukin-6 and erythropoietin in myelosuppressive mice were significantly decreased. The total erythrocyte count, the contents of hemoglobin and imerleukin-3 were decreased, without significant difference. The blood physiological indices and the contents of interleukin-3 and erythropoietin in myelosuppressive mice could be improved by intragastric administration of Astragalus polysaccharide and Chinese herbal compound at different doses for 3 days or 7 days. The effect of 20 g/kg Chinese herbal compound was the best after administration for 3 days, and the effect of 10 g/kg Chinese herbal compound was the best after administration for 7 days. The total white blcod cell count, total neutrophile granulocyte count, percentage of neutrephile granulocyte, total lymphocyte count, total count of middle cells, percentage of middle cells, total platelet count, contents of interleukin-3 and erythropoietin in myelosuppressive mice could be extremely significantly improved by intragastric administration of 10 g/kg Chinese herbal compound for 7 days（ P 〈 0. 01 ） , and the reduction of red blood cell count, hematecfit, the contents of hemoglobin and interleukin-6 induced by cyclophesphamide could be inhibited （P 〈 0.01 ）. [ Conclusion ] Chinese herbal compound could improve the hematopoietic function of myclosuppressivc mice induced by cyclophosphamide and its effect was better than Astragalus polysaccharide. 20 g/kg Chinese herbal compound reacted fast and the reaction of 10 g/kg Chinese herbal compound was slow ,but its efficacy was lasting.

Efficacy of Chinese herbal compound GAPT for the treatment of Alzheimer’s disease during mouse/rat studies:A systematic review and meta-analysis

Objective:To evaluate the efficacy of the Chinese herbal compound GAPT for the treatment of Alzheimer’s disease(AD)and to provide current evidence for potential treatment mechanisms.Methods:A comprehensive search of PubMed,Embase,Web of Science,SinoMed,China Network Knowledge Infrastructure,Wanfang Data,and Chinese Scientific Journals Database was performed to identify GAPT mouse/rat studies published from inception to July 2019.The outcomes extracted were Morris water maze results and molecular biological quantifications.Results:A total of 19 studies were included in this analysis.The analysis indicated that GAPT was able to significantly improve learning and memory abilities compared with model mice/rats,as assessed by Morris water maze,and showed similar efficacy as donepezil.Subgroup analyses showed that low,medium,and high doses resulted in no obvious dose-dependent effects.Additionally,the GAPT group had significantly reduced expression levels of amyloid-beta peptide,presenilin 1,phosphorylated tau,acetylcholinesterase,and glycogen synthase kinase-3b,but increased expression levels of Shank1,and protein phosphatase-2A,and improved synapses structures compared with the model group,and subgroup analyses showed the medium dose of GAPT was superior to the low and high doses.Conclusions:Based on the pooled analysis,GAPT improved the learning and memory abilities and regulated the expression levels of related proteins during the progression of AD in mouse/rat studies.Notably,the medium dose of GAPT exhibited better performance than the other two doses,providing experimental evidence for further applications of GAPT during clinical practice.

Clinical efficacy of Chinese herbal compound in the treatment of infertility with kidney deficiency:A meta-analysis

Objective:Based on the current evidence system to evaluate the effect of traditional Chinese medicine compound on the clinical efficacy of infertility patients with kidney deficiency.Methods:Search the China Knowledge Resources Database(CNKI),Chinese Science and Technology Journal Database(VIP),China Academic Journal Database(Wanfang),PubMed,EMBASE,Ovid.The included studies are randomized controlled trials.The experimental group is Chinese medicine compound or Chinese medicine compound combined with western medicine,and the control group is western medicine.Two reviewers independently extracted and evaluated the literature data according to the Cochrane manual standards,and used Rev Man5.3 software for data synthesis and Meta-analysis.Results:32 studies were selected,a total of 2715 cases of infertility patients.The clinical pregnancy rate of the experimental group and the control group[n=29,OR(95%CI)=2.47(2.07,2.96),P<0.00001],the clinical total effective rate[n=20,OR(95%CI)=3.77(2.83,5.03),P<0.00001],TCM syndrome score[n=14,MD(95%CI)=4.34(3.08,5.61),P<0.00001],ovulation rate[n=20,OR(95%CI)=2.21(1.85,2.63),P<0.00001],the occurrence rate of two-way BBT[n=11,OR(95%CI)=2.65(2.02,3.48),P<0.00001].The GRADE scoring results show that the level of evidence is low and very low.Conclusion:Traditional Chinese medicine compound can increase the clinical pregnancy rate and clinical total effective rate of infertility with kidney deficiency syndrome,improve the scores of Chinese medical syndromes,increase its ovulation rate and the occurrence rate of BBT bidirectional type,and confirm the clinical efficacy of Chinese medicine compound from the perspective of evidence-based medicine.

Application of Mathematical Models in the Research of Chinese Herbal Compound Prescriptions

With the interdisciplinary development of multiple disciplines,mathematical models play a role as a bridge in the research process of Chinese herbal compounds,which can make full use of the interrelationships of knowledge,making the research and use of Chinese herbal compounds from complex and cumbersome to simple.This paper reviewed the research and application of mathematical models in the production and preparation,pharmacodynamics,pharmacokinetics and other aspects of Chinese herbal compound prescriptions,providing a theoretical basis for the development of the modern Chinese medicine industry.

Research progress of traditional Chinese medicine compound in the treatment of gout based on intestinal flora

Because of the continuous improvement of the quality of life,the population of gout patients is also increasing,which seriously affects the quality of life of patients.Traditional Chinese medicine compound has a long history and remarkable clinical effect in treating gout patients,and has been widely used.Intestinal flora and its metabolites are the focus of current research,which can promote intestinal mucosal barrier,improve immunity and improve metabolism.The regulation of intestinal flora can reduce serum uric acid and inhibit inflammation to fight gouty arthritis.Moreover,the mechanism of intestinal flora is related to the spleen in Chinese medicine theory.Therefore,this study discusses the research mechanism and clinical application of traditional Chinese medicine compound in treating gout by regulating intestinal flora,and provides theoretical basis for the clinical application of traditional Chinese medicine and the expansion of new dosage forms.

Research Status of Serum Pharmacology and Serum Pharmacochemistry of Traditional Chinese Medicine

Serum pharmacochemistry of traditional Chinese medicine has become a more accurate and rapidly developing reasonable way to analyze the effective material basis of traditional Chinese medicine in recent years. Through this method, we can select very complex Chinese medicine components and clarify the effective substances consistent with the main functions, and then separate and purify effective ingredients in traditional Chinese medicine, so as to explain the material basis of the drug effect and prove the rationality and principle of action of Chinese medicine compounds. It can show the multi-component and multi-target characteristic of traditional Chinese medicine, and after analyzing the migrating components of serum, we can explore the direct effective substances that act on the patient’s body, so as to accelerate and accurately complete the in-depth study of the effective substances of Chinese medicine.

Therapeutic efficacy of traditional Chinese medicine compound in the treatment of membranous nephropathy: A systematic review and meta-analysis

Objective:Systematic review of the clinical efficacy of medicinal nephropathy in the treatment of membranous nephropathy with the addition of traditional Chinese herbal compound on the basis of hormone and immunosuppressive therapy.Methods:Computer search of China Knowledge Network,Wanfang Database,Weipu Database,China Biomedical Database,PubMed Database、Embase Database、Cochrane Database,collect clinical research on Chinese medicine compound+hormone+immunosuppressive therapy for MN,delete duplicate literature,eliminate non-conformity by reading topic,abstract and full text The literature was included in the exclusion criteria,the data was extracted from the included literature,and the meta-analysis was performed using the stata14.0 software package.Results:The top 6 Chinese medicines used were Astragalus,Poria,Atractylodes,Salvia,Angelica and Chinese Yam.The use of traditional Chinese medicine in the treatment of patients with MN on the basis of hormone and immunosuppressive therapy can improve clinical efficacy[OR=2.90,95%CI(2.27,3.70),P<0.00001]and TCM symptom efficacy[OR=3.10,95%CI(1.91,5.05),P<0.00001],improved TCM syndrome scores[SMD=-0.93,95%CI(-1.34,-0.52),P<0.00001],reduced 24-hour urine protein levels[SMD=-0.90,95%CI(-1.23,-0.57),P<0.00001],increased plasma albumin levels[SMD=1.22,95%CI(0.86,1.58),P=0.000],decreased blood lipid TC levels[SMD=-0.69,95%CI(-0.98,-0.39),P<0.00001],lowering blood lipid TG levels[SMD=-0.75,95%CI(-1.09,-0.41),P<0.0001],in improving renal function BUN levels[SMD=-0.56,95%CI(-0.97,0.14),P=0.008]and Scr levels[SMD=-0.58,95%CI(-0.89,-0.27),P=0.0002],reducing the incidence of adverse reactions[OR=0.25,95%CI(0.17,0.36),P<0.00001].Egger and harbord test results suggest that some indicators have publication bias.Conclusion:The traditional Chinese medicine used is mainly jaundice,and the traditional Chinese medicine for replenishing qi and activating blood is used more frequently.In the basic application of hormone+immunosuppressive agents,Yiqihuoxue Chinese medicine has a good effect on MN,but it is limited to the quality of the included literature.The conclusion needs to be verified by more high-quality studies.

Progress of traditional Chinese Medicine on ADHD Treatment Based on Syndrome Differentiation

Attention-Deficit Hyperactivity Disorder(ADHD)is a common neurodevelopmental disorder in childhood.Syndrome differentiation for ADHD in traditional Chinese medicine is complex without common uniform,it is important to propose unified standards.Based on the principle of syndrome differentiation,this article focused on the different names of different syndrome differentiation methods but the same essence,and summarized Chinese medicine compounds according to syndrome factors.By collecting relevant literature on ADHD treatment with Chinese herbal compound in recent years,ADHD is classified into 7 different syndrome types,and Chinese herbal compound is classified correspondingly for reference and selection of clinical treatment of ADHD.

Neuroprotective mechanism of Kai Xin San: upregulation of hippocampal insulin-degrading enzyme protein expression and acceleration of amyloid-beta degradation

Kai Xin San is a Chinese herbal formula composed of Radix Ginseng, Poria, Radix Polygalae and Acorus Tatarinowii Rhizome. It has been used in China for many years for treating amnesia. Kai Xin San ameliorates amyloid-β （Aβ） induced cognitive dysfunction and is neuroprotective in vivo, but its precise mechanism remains unclear. Expression of insulin-degrading enzyme （IDE）, which degrades Aβ, is strongly correlated with cognitive function. Here, we injected rats with exogenous Aβ42 （200 μM, 5 μL） into the hippocampus and subsequently administered Kai Xin San （0.54 or 1.08 g/kg/d） intragastrically for 21 consecutive days. Hematoxylin eosin and Nissl staining revealed that Kai Xin San protected neurons against Aβ-induced damage. Furthermore, enzyme linked immunosorbent assay, western blot and polymerase chain reaction results showed that Kai Xin San decreased Aβ42 protein levels and increased expression of IDE protein, but not mRNA, in the hippocampus. Our findings reveal that Kai Xin San facilitates hippocampal Aβ degradation and increases IDE expression, which leads, at least in part, to the alleviation of hippocampal neuron injury in rats.

Effect of Chinese Herbal Compound Naofucong (脑复聪) on theInflammatory Process Induced by High Glucose in BV-2 Cells

Objective: To determine the effect of medicated serum of Chinese herbal compound Naofucong(脑复聪, NFC) on the microglia BV-2 cells viability and the transcription and expression of interleukin-6(IL-6) and tumor necrosis factor α(TNF-α) in microglia BV-2 cells to further explore the mechanisms underlying the protective effect of NFC on inflammatory process induced by high glucose. Methods: The microglia BV-2 cells incubated in vitrowere divided into different groups: the control group(25 mmol/L glucose), the model group(75 mmol/L glucose), high glucose media containing different dose medicated serum of NFC. After being cultured for 24 h, changes in IL-6 and TNF-α were measured by quantitative real-time polymerase chain reaction and enzyme-linked immunosorbent assay. The expression of surface marker CD11 b of activated microglia was measured by confocal laser scanning microscope and Western blot. Nuclear factor-κB(NF-κB) p-p65 expression was analyzed by Western blot. Results: The model group obviously increased the expression of microglial surface marker CD11 b and NF-κB p-p65(all P<0.01), induced a significant up-regulation of release and the m RNA expression of IL-6 and TNF-α(P<0.01 or P<0.05). The medicated serum of NFC could obviously down-regulate the transcription and expression of surface marker CD11 b and NF-κB p-p65(all P<0.01), and inhibit the m RNA and protein expression(P<0.01 or P<0.05) of inflammatory cytokines, such as IL-6 and TNF-α, in microglia BV-2 cells cultured with high glucose for 24 h. Conclusions: The inhibition of microglial activation and IL-6 and TNF-α expression induced by high glucose may at least partly explain NFC therapeutic effects on diabetes-associated cognitive decline diseases. Its underlying mechanism could probably be related to the inhibition of NFC on NF-κB phosphorylation.

Effective Components of Chinese Herbal Compound Decoction and Maillard Reaction

This paper intends to explore the color changes considered to be Maillard reaction during the process of Chinese herbal medicine.The Maillard reaction products(MRPs) are often in substantial proportions of Chinese herbal compound decoctions but their effects are often neglected.By considering the effects of MRPs in studies of effective components on Chinese herbal compounds,a new perspective is established in future researches of Chinese herbal compound decoctions.

Zhichan powder regulates nigrostriatal dopamine synthesis and metabolism in Parkinson's disease rats

In this study, rat models of Parkinson＇s disease induced by substantia nigra injection of 6-hydroxy-dopamine were intragastrically administered Zhichan powder daily for 50 days. Reverse transcription PCR results showed that tyrosine hydroxylase mRNA expression in the rat substantia nigra was significantly increased, while monoamine oxidase B mRNA expression was significantly decreased in the Zhichan powder group, compared with the model group. In addition, the levels of striatal dopamine and homovanillic acid, the ratio of dopamine to homovanillic acid, and the activity of blood superoxide dismutase were all higher in the Zhichan powder group than in the model group but the content of malondialdehyde in blood was lower. Our experimental findings indicate that Zhichan powder has an antioxidant effect, it can regulate the expression of monoamine oxidase B and tyrosine hydroxylase in the substantia nigra of Parkinson＇s disease rats, and it can facilitate the secretion of striatal dopamine and its metabolite homovanillic acid.

Meta analysis and medication analysis of TCM compound in the treatment of senile osteoporosis

Objective:Tsystematic evaluation and Meta analysis were used to evaluate the effectiveness of TCM compound in the treatment of senile osteoporosis and to analyze the regularity of its medication.Methods:Electronic retrieval of CNKI,Wangfang Data,VIP,CBM,PubMed,Embase,Cochrane Library and other databases was conducted to include the clinical randomized controlled trial(RCT)of TCM compound as intervention measures for the treatment of senile osteoporosis as the study object.The retrieval time was set up until October 2019.The two researchers independently screened the literature according to inclusion criteria,extracted the data,and evaluated the quality of the included studies using Cochrane 5.1.0 bias risk assessment tool,and then used RevMan5.3 software for data analysis.Results:a total of 19 RCT literatures were included in the experimental group.In the control group,844 patients were treated with calcium or non-calcium.Meta analysis showed that total effective rate(RR=1.30,95%ci:1.19-1.43,P<0.05),lumbar vertebral bone density(MD=0.02,95%ci:0.01-0.04,P<0.05),femoral neck bone density(MD=0.01,95%ci:0.00~0.02,P<0.05),VAS score(MD=-1.04,95%ci:-1.67~0.40,P<0.05),BMC value(MD=0.06,95%ci:0.01~0.11,P=0.03),radial bone density(MD=0.04,95%ci:0.03~0.05,P<0.05),TCM syndrome score(MD=-6.76,95%ci:-7.94^-5.59,P<0.05),and TCM syndrome efficacy rate(RR=1.49,95%ci:1.28~1.73,P<0.05)were all statistically significant.ALP(MD=4.72,95%ci:-6~15.44,P=0.39),estradiol(MD=10.45,95%ci:-1.75~22.64,P=0.09),root bone index(MD=0.01,95%ci:-0.17~0.18,P=0.95),other bone mineral density(MD=0.11,95%ci:-0.01~0.22,P=0.06),urinary calcium/urinary creatinine(MD=-0.09,95%ci:There was no significant difference in serum calcium(MD=-0.01,95%ci:-0.11~0.09,P=0.83),serum phosphorus(MD=0.03,95%ci:-0.01~0.07,P=0.09).Among the Chinese herbal compounds used,astragalus is the most frequently used tonic.Conclusion:traditional Chinese medicine compound is effective in treating senile osteoporosis,and it is mainly used as tonic.

Efficacy of Huoxue Qianyang Qutan Recipe on essential hypertension:A randomized,double-blind,placebo-controlled trial

Background:Hypertension,a prevalent disease,is a significant risk factor for coronary heart disease.Huoxue Qianyang Qutan Recipe (HQQR),a traditional Chinese herbal remedy,has been used for treating hypertension over several years.Objective:This study assesses HQQR’s efficacy for controlling blood pressure among patients with hypertension related to blood stasis,yang hyperactivity and phlegm.Design,setting,participants and interventions:A randomized controlled trial was conducted at the Yueyang Hospital of Integrated Traditional Chinese and Western Medicine,Shanghai University of Traditional Chinese Medicine,China,from July 2020 to June 2022.Major components of HQQR were identified using thin-layer chromatography and high-performance liquid chromatography.Participants aged18–80 years,exhibiting traditional Chinese medicine syndromes of blood stasis,yang hyperactivity or phlegm,along with grades 1 or 2 hypertension,were randomly categorized into two groups.The intervention group was given HQQR granules alongside conventional hypertension treatment,while the control group was given placebo granules in addition to conventional treatment for 12 weeks.Main outcome measures:The primary outcome was clinic blood pressure,whereas secondary outcomes included metabolic indices (e.g.,homeostasis model assessment of insulin resistance[HOMA-IR],total cholesterol[TC],low-density lipoprotein cholesterol and triglyceride),target organ damage indices (left ventricular mass index and urinary albumin creatinine ratio[UACR]) and inflammation indices(interleukin-6[IL-6]and high-sensitivity C-reactive protein[hs-CRP]).Results:HQQR’s primary components were identified as salvianolic acid B,emodin and ferulic acid.Of the 216 participants (108 in each group),compared to the control,the intervention group exhibited significant improvements (P<0.001) in clinic systolic blood pressure ([136.24±7.63]vs[130.06±8.50]mmHg),clinic diastolic blood pressure ([84.34±8.72]vs[80.46±6.05]mmHg),home systolic blood pressure([131.64±8.74]vs[122.36±8.45]mmHg) and home diastolic blood pressure ([78.47±9.53]vs[71.79±6.82]mm Hg).HQQR demonstrated a reduction in ambulatory blood pressure (24-hour systolic blood pressure:[133.75±10.49]vs[132.46±8.84]mmHg and 24-hour diastolic blood pressure:[84.12±8.01]vs[82.11±7.45]mmHg) and an improvement in HOMA-IR ([4.09±1.72]vs[3.98±1.44]),TC ([4.66±1.47]vs[3.75±1.81]mmol/L) and UACR (75.94[5.12,401.12]vs 45.61[4.26,234.26]).Moreover,HQQR demonstrated a decrease in hs-CRP (1.46[0.10,10.53]vs 0.57[0.12,3.99]mg/L) and IL-6 (6.69[2.00,29.74]vs 5.27[2.00,9.73]pg/mL),with no reported side effects (P<0.001).Conclusion:This study highlights the therapeutic potential of HQQR use in ameliorating blood pressure,glycolipid metabolism,and inflammation in patients with hypertension.

Toxicity Features of High Glucose on Endothelial Cell Cycle and Protection by Dan Gua-Fang(丹瓜方) in ECV-304 in High Glucose Medium

Objective： To study the toxicity features of high glucose on the endothelial cell cycle and the influence of Dan Gua-Fang , a Chinese herbal compound prescription, on the reproductive cycle of vascular endothelial cells cultivated under a high glucose condition; to reveal the partial mechanisms of Dan Gua- Fang in the prevention and treatment of endothelial injury caused by hyperglycemia in diabetes mellitus （DM）; and offer a reference for dealing with the vascular complications of DM patients with long-term high blood glucose. Methods： Based on the previous 3-（4,5）-dimethylthiahiazo （z-yl）-3-5-diphenytetrazoliumromide （MI-I-） experiment, under different medium concentrations of glucose and Dangua liquor, the endothelial cells of vein-304 （ECV-304） were divided into 6 groups as follows： standard culture group （Group A, 5.56 mmol/L glucose）; 11300 herb-standard group （Group B）; high glucose culture group （Group C, 16.67 mmol/L glucose）; 1/150 herb-high glucose group （Group D）; 1/300 herb-high glucose group （Group E）; and 1/600 herb-high glucose group （Group F）. The cell cycle was assayed using flow cytometry after cells were cultivated for 36, 72 and 108 h, respectively. Results： （1） The percentage of cells in the Go/G1 phase was significantly increased in Group C compared with that in Group A （P〈0.05）, while the percentage of S-phase （S%） cells in Group C was significantly reduced compared with Group A （P〈0.05）; the latter difference was dynamically related to the length of growing time of the endothelial cells in a high glucose environment. （2） The S% cells in Group A was decreased by 30.25% （from 40.23% to 28.06%） from 36 h to 72 h, and 12.33% （from 28.06% to 24.60%） from 72 h to 108 h; while in Group C, the corresponding decreases were 23.05% and 21.87%, respectively. The difference of S% cells between the two groups reached statistical significance at 108 h （P〈0.05）, （3） The percentage difference of cells in the Gz/M phase between Group C and Group A was statistically significant at 72 h （P〈0.01）. （4） 1/300 Dan Gua-Fang completely reversed the harmful effect caused by 16.67 mmol/L high glucose on the cell cycle; moreover it did not disturb the cell cycle when the cell was cultivated in a glucose concentration of 5.56 mmol/L. Conclusions： High glucose produces an independent impact on the cell cycle. Persistent blocking of the cell cycle and its arrest at the Go/G1 phase are toxic effects of high glucose on the endothelial cell cycle. The corresponding variation of the arrest appears in the S phase. 1/300 Dan Gua-Fang completely eliminates the blockage of high glucose on the endothelial cell cycle.