Study on HPLC Fingerprints of Huobahuagen Tablets Intermediate / 中国药房

OBJECTIVE:To establish the HPLC fingerprints for Huobahuagen tablets intermediate. METHODS:HPLC was per-formed on Inertsil ODS-4 column with mobile phase consisted of acetonitrile-0.1% phosphoric acid (gradient elution) at the flow rate of 0.75 mL/min. The detection wavelength was set at 220 nm,and column temperature was 30 ℃. The sample size was 10 μL. Using wilforgine as reference,HPLC chromatograms of 10 batches of samples were determined. Common peak identification and similarity evaluation were performed by using Similarity Evaluation System for TCM Chromatographic Fingerprint (2004 A edi-tion). RESULTS:There were 25 common peaks in HPLC chromatograms of 10 batches of samples,and similarity degrees were higher than 0.9. After validated,HPLC chromatograms of 10 batches of samples were in good agreement with control fingerprints. CONCLUSIONS:The established fingerprint can provide reference for identification and quality evaluation of Huobahuagen tab-lets intermediate.

Research on Research Trend of Tripterygium Hypoglaucum based on Bibliometric Method / 世界科学技术-中医药现代化

This article was aimed to study the latest research progress of Tripterygium hypoglaucum, in order to pro-vide references for further research on T. hypoglaucum. CNKI Chinese Journal Full-text Database was used as data source. Bibliometric analysis was conducted on T. hypoglaucum research articles issued from 1915~2013. Bibliometric method was used in the analysis on the change trend among years, research institutes, publication dates, research per-sonnels and research topics of the articles with the built-in analysis tools and network analysis tools. The results indi-cated that T. hypoglaucum research was still in the development stage. And there is still plenty of room for growth in aspects including resources, material basis, manufacturing pharmacy and so on.

Identification of Chemical Component Cantharidin from Chinese Blister Beetle by LC-MS/MS / 世界科学技术-中医药现代化

This study was aimed to verify the chemical component cantharidin from Chinese blister beetle by LC-MS/MS. Components were first processed by HPLC to choose the appropriate separation conditions before LC/MS/MS analysis. Through the positive and negative ions pre-scan, positive ions scanning way was selected in the scanning of each separate component. The scanned maps were obtained and the relative molecular mass was deduced. The results showed that 8 types of cantharidin compounds were identified, including three isomers. It was concluded that LC-MS/MS was able to determine the chemical component cantharidin from Chinese blister beetle rapidly and accurately, which was existed in the body by the form of combined amino acid.

Study on pharmacokinetics and biodistribution of pur derivative nanopaticles in mice / 中国中药杂志

<p><b>OBJECTIVE</b>To study the pharmacokinetics and biodistribution of pur derivative nanopaticles 4ac in mice.</p><p><b>METHOD</b>After intravenous administration of 15 mg x kg(-1) of pur derivative 4ac, the plasma and tissue concentration was detected by HPLC. The pharmacokinetics parameters were calculated by the method of 3p97.</p><p><b>RESULT</b>The concentration time curves were conformed to two compartment model. The Re of 4ac nanopaticles was 21.18 times higher than suspension.</p><p><b>CONCLUSION</b>Our present study demonstrates that, compared to nanopaticles and suspension, nanopaticles significantly alter the pharmacokinetics in plasma and tissues targeting. Biodistribution of pur derivative 4ac nanopaticles in heart of mice was better than 4ac suspension. It will become a new drug for cardiovascular disease therapy.</p>

Release mechanism of huperzine-A swelling sustained-release tablets / 中国中药杂志

<p><b>OBJECTIVE</b>To study the release mechanism of Huperzine-A swelling sustained-release tablets (HA-ST) and the factors influencing the release rate.</p><p><b>METHOD</b>The HA-ST were prepared by using Polyoxyethylene (PEO) as the matrix material, polyvinyl alcohol (PVA) as the expandable reagent and microcrystalline cellulose (MCC) as the filling reagent. The effect of the amount of PEO, PVA and MCC on the drug release from the tablets was evaluated using the release index n value of the Ritger-Peppas equation.</p><p><b>RESULT</b>The addition of PEO and PVA speeded up the rate of drug release from the tablets, while MCC did not affect the release rate. The release profiles of HA-ST conformed to the Higuchi model and the release mechanism was non-Fick release that coupled diffusion and erosion.</p><p><b>CONCLUSION</b>The release of HA-ST is influenced by the amount of PEO and PVA but not the MCC. The release process can be depicted by the Ritger-Peppas equation and release mechanism was is non-Fick release.</p>

Swelling property of common hydrophilic polymers and their use in push-pull osmotic-pump tablets / 中国中药杂志

<p><b>OBJECTIVE</b>To investigate the feasibility of swelling hydrogel instead of polyethylene oxide as swelling polymer in push-layer of push-pull osmotically controlled-release tablets.</p><p><b>METHOD</b>The swelling patterns of tablets made of pure polymers were studied by immerging the tablets into purified water and testing their size at different time points. The push-pull osmotic-pump tablets were prepared and their release patterns in vitro were studied and compared by their similar factor (f2).</p><p><b>RESULT</b>Tablets with different swelling materials all showed satisfying release pattern in vitro and their release ratio at 12 h were all above 80%.</p><p><b>CONCLUSION</b>With its release rate and cumulative release percentage at 12 h, the mixture of HPMC K15M and CMCNa in ratio of 1:1 is the best choice instead of polyethylene oxide as swelling polymer in push-layer.</p>

Feasibility of constructing artificial cartilage with rabbit mesenchymal stem cells and polyglycolic acid scaffold / 中国组织工程研究

BACKGROUND: Whether choosing a suitable biological scaffold compounding with mesenchymal stem cells (MSCs) can construct an ideal tissue-engineering cartilage or not should be researched further.OBJ ECTIVE: To investigate the feasibility of constructing artificial cartilage by using amplified rabbit MSCs which were inoculated on poly-glycolic acid (PGA).DESIGN: Single sample observation.SETTING: Department of Otolaryngology-Head & Neck Surgery, Affiliated Hospital of Sichuan Luzhou Medical College.MATERIALS: The experiment was carried out in the Luzhou Medical College from October 2004 to October 2005. A total of 8 Japanese large ear rabbits, of both genders, clean grade, aged from 2 to 3 months, weighing 1.5-2.0 kg, were fed in normal temperature and humidity. Poly-glycolic acid was provided by Albany Company, USA.METHODS: Rabbit MSCs were separated, obtained and amplified. In addition, poly-glycolic acid was sheared into pieces with the size of 1 cm × 1 cm × 1 cm and embedded with poly-L-lysine. Amplified MSCs were inoculated on the surface of poly-glycolic acid, and then, they were averagely grown on pre-wet scaffold of poly-glycolic acid according to 4 mL/cm3multi-points spreading style and cultured in vitro for 3 weeks. After the operations mentioned above, samples were regarded as the experimental group. Scaffolds of poly-glycolic acid without MSCs were considered as the control group.Samples in both experimental group and control group were transplanted into abdominal cavity of 4 rabbits, respectively,cultured in vivo for 6-12 weeks, taken out and observed generally. Meanwhile, the samples were fixed with 100 g/L neutrality formaldehyde, cut into sections with the thickness of 5 μm, stained with haematine-eosin (HE) and observed their histomorphological characteristics. Moreover, the samples were stained with alcian blue for observation of glycosaminoglycans formation, with toluidine blue for observation of metachromasia matrix formation, and with immunohistochemical staining for detection of type- Ⅱ collagen expression.MAIN OUTCOME MEASURES: Generally observational results of two kinds ofscaffolds at 6 and 12 weeks after transplanting into experimental rabbits, various staining results and expression of type- Ⅱ collagen.RESULTS: A total of 8 experimental rabbits were involved in the final analysis. ① Generally observational results of two kinds of scaffolds at 6 and 12 weeks after transplanting into experimental rabbits: At 6 weeks after transplanting scaffold into abdominal cavity of rabbits, samples in the experimental group were still coated with greater omentum of abdominal cavity. After clearing greater omentum, three samples were light yellow, smooth and moderate quality; meanwhile, their appearances were coincidence with those before transplantation. However, one sample was gray black and soft quality;meanwhile, it was not able to take shape. Twelve weeks later, appearances of samples in the experimental group were still coincidence with those before transplantation. They were gray white, smooth but hard quality. However, samples in the control group were mostly absorbed at 6 and 12 weeks after transplantation, especially, samples were remarkably absorbed at 12 weeks after transplantation. Any tissue like cartilage did not form in both two durations. ② Various staining results and expression of type- Ⅱ collagen at 6 and 12 weeks after transplanting scaffolds into experimental rabbits: Results of HE staining showed that, at 6 weeks after transplantation, structure of cartilage lacuna-like was started form, and PGA scaffold began to be degraded. In contrast, at 12 weeks postoperatively, some cartilage-like tissue were observed in compound, cartilage lacuna-like structure formed obviously; cells arrayed regularly and geminately existed In cartilage lacuna-like atructure; the smaller cell sizes observed at borders and the bigger ones observed at the center;PGA degraded completely. Results of alcian blue staining showed that, at 6 weeks after transplantation, a partial of regions in tissue were light blue; meanwhile, at 12 weeks after transplantation, matrixes in tissue were mostly blue. This suggested that a lot of glycosaminoglycans were formed. Results of toluidine blue staining suggested that, at 6 weeks after transplantation, blue metachromasia matrixes were observed in tissue; meanwhile, at 12 weeks after transplantation, blue metachromasia matrixes were stronger and stronger in tissue. Results of immunohistochemical staining indicated that, at 6 weeks after transplantation, buffy positive granules were observed in plasma and a few of type-Ⅱ collagen expressed in matrix; meanwhile, at 12 weeks after transplantation, powerfully positive expressions were observed in both plasma and matrix. Expression of type- Ⅱ collage showed that, at 6 weeks after transplantation, dark buffy positive granules were observed in plasma and a few of type- Ⅱ collagen mRNA expressed in matrix; meanwhile, at 12 weeks after transplantation, powerfully positive expressions were observed in both plasma and matrix. Samples in the control group were completely absorbed and any tissue-engineering samples did not form.CONCLUSION: Affecting by osteogenic inducer, rabbit MSCs can generate tissue-engineering cartilage after culture in vitro and in vivo.

Feixin mixture for vascular remodeling in rats with monocrotaline-induced pulmonary hypertension / 中国组织工程研究

BACKGROUND: Pulmonary hypertension induced by alternation of pulmonary function and structure is the prerequisite of pulmonary-cardiac disorder. Chinese herb, fenxin mixture(FXM) reduces effectively pulmonary hypertension, but the mechanism on which has not been completely explained yet.OBJECTIVE: To comp are the reversal effects between feixin mixture and nifedipine on vascular remodeling in rats with pulmonary hypertension.DESIGN: Randomized controlled experimental study in which experimental animals are taken as the objects.SETTING: Nursing department of affiliated hospital of a medical university;a medical college affiliated hospital and department of traditional Chinese medicine of a provincial hospital.METHODS: Monocrotaline(MCT) (50 mg/kg) was used to duplicate pulmonary-cardiac model in rats. Totally 60 Wister male rats were randomized into 6 groups, namely normal control group, model group, FXM groups of low, middle and high dosages successively and nifedipine group, 10 rats in each group. Since the 14th day of modeling, the corresponding medications were administrated with gastric infusion, continuously for 8 days. After the rats sacrificed, the special staining collaborating with pathological image analysis was used to determine the measurement alternations on path-morphology of pulmonary small artery.wall square(VWS)/total vessel square(TVS), cavity square(CS)/TVS of pulmonary small artery in rats of every group.RESULTS: Both feixin mixture and nifedipine alleviate pulmonary vascular remodeling remarkably( P ＜ 0.01 ), of which, the effect was the best in feixin mixture group of high dosage. But, the every index in experimental groups had not recovered to the level in normal control group completely.CONCLUSION: Feixin mixture reverses partially the remodeling of pulmonary vascular structure and reduces effectively pulmonary hypertension.

Ultrasonic wave in combination with quadriceps exercise for the treatment of senile knee osteoarthritis / 中国组织工程研究

BACKGROUND: The pain and the unstability of the knee joint are the main clinical manifestation of knee osteoarthritis.OBJECTIVE: To verify the efficacy of ultrasonic drug penetration combiued with quadriceps exercise in treating senile knee osteoarthritis.DESIGN: Randomized controlled study.SETTING: Rehabilitation Department of the Affiliated Hospital of Luzhou Medical College.PARTICIPANTS: Seventy-six in-patient and out-patient cases of the knee osteoarthritis, 28 males and 48 females and total 109 knees, were chosen in the Orthopaedic Department and Rehabilitation Department in the Affiliated Hospital of Luzhou Medical College in theperiod between August,2001 and August, 2004. The cases were randomly divided into the experimental group and the control group with 38 cases each.therapy apparatus made in Mianyang was adopted and the diameter of the handpiece was 3 cm. 10 g/L dichloride sodium emulsion (made by Beijing Nuohua Pharmaceutical co.,Ltd) was taken as the coupling agent to smear around the knee joint about 0.75 -1.25 W/cm2, once a day, and 8-10 minutes per time. Meanwhile the static isometric contraction exercise of the knee joint in the extension position was done. Using the quardriceps isometric exercise apparatus, the Delorme progressive resisThe same ultrasonic therapy was done as the therapy group. The nonthermal and microthermal ultrasonic wave was adopted on the suffered location 10 -15 minutes per time, and the tolerance dose of the mid-frequency current was given 20 minutes per time and once a day using the CM-efficacy was assessed in the two groups 4 weeks after the therapy. During the therapy period the anti-inflammatory and analgesic drugs were not patient's knee joint activities of daily life (0 score signifies no pain, 10 scores severe pain, the pain relief better than 40% that before the therapy means the effectiveness). The lower limb activity of daily life was chosen to evaluate the patient's knee joint activities of daily life (5 items,total 10 scores, high score means good, low score means poor). The maximal loading dose in the extension position of the knee joint was measured on the quadriceps isometric exercise apparatus using the suspension weight method.The maximal loading dose in the extension position of the knee joint in the two groups.result of the walking pain scale in the two groups before and after the therapy: The score of pain evaluation after therapy was significantly lower than that before the therapy (P ＜ 0.01), and there was no significant differs knee joint activities of daily life in the two groups before and after the therapy: the result after the therapy was siguifieantly better than that before the therapy, and the efficacy after the therapy was significantly higher than that before the therapy, the efficacy of the experiment group was better than that of the control group (9.61±1.82, 8.77±2.28), while there was tion results of the maximal loading dose in the extension position of the knee joint in the two groups: the result of the experimental group after the therapy was significantly better than that of the experimental group before the therapy and the control group [ (10.05±2.41) kg vs (7.86±1.98) kg and (8.76±1.65) kg, P ＜ 0.01 ].CONCLUSION: The ultrasonic wave using the dichloride sodium emulsion as the ultrasonic coupling agent in combination with quadriceps strengthening exercise in treating the senile knee osteoarthritis is efficacious in relieving pain and improving the ADL ability of the knee joint, increasing the maximal loading dose in the extension position of the knee joint and the stability of the knee joint. The efficacy of the combination therapy is better than the single ultrasonic therapy.

Effect of comprehensive rehabilitation on craniocerebral trauma / 中国康复理论与实践

@#ObjectiveTo study the effect of comprehensive rehabilitation on the patients with craniocerebral trauma. Methods85 cases with craniocerebral trauma were subjected to the rehabilitation training supplemented with hyperbaric oxygen and acupuncture and ultrasound therapy in addition to routine neurosurgical operation. Before and after treatment,Glasgow coma scale (GCS), Fugl-Meyer assessment (FMA) and Barthel index were assessed and compared. ResultsAfter comprehensive rehabilitation therapy, the degree of coma, limbs motion and activities of daily living were improved significantly (P<0.01).ConclusionComprehensive rehabilitation is effective on the patients with craniocerbral trauma.

Effect of nifedipine on monocrotaline-induced pulmonary hypertension in rats / 中国康复理论与实践

@#ObjectiveTo investigate the effect of nifedipine(Nif) on experimental pulmonary hypertension(PH).Methods33 adult male Wistar rats were randomly divided into normal control group,model group and Nif treatment group(n=11 for each group). Rats were given a single dose of subcutaneous monocrotaline(MCT,50 mg/kg) to induce the model of pulmonary hypertension, then treated with gastric infusion of normal saline or Nif respectively for 21 days. The parameters of pulmonary hemodynamics were monitored by Gould3400 polygraph system through the cannulation of polyvinyl tube. Right ventricle and left ventricle added with interventricular septum weight ratio, and the lung wet weight were measured.ResultsNif significantly inhibited the progression of pulmonary artery pressure(P<0.01), decreased the right heart index(P<0.01), but did not significantly reduce the lung wet weight(P>0.05).ConclusionChronic treatment with Nif may effectively reduce the development of PH induced by MCT and improve the heart function.

Effect of acupuncture and moxibustion combined with quadriceps exercise on knee osteoarthritis / 中国康复理论与实践

@#Objective To explore the effect of acupuncture and moxibustion combined with quadriceps exercise on osteoarthritis of knee joint. Methods 82 cases of knee osteoarthritis were randomly divided into the acup-moxibustion group (41 cases, treated with acup-moxibustion and quadriceps exercise treatment) and routine treatment group (41 cases). Lower limb ability of daily life respectively and knee pain of patients before and 30 days after treatment were evaluated. Results Clinical symptoms of patients in both groups were improved significantly after treatment. The acup-moxibustion group was better than traditional group in relieving pain and improving the lower limb ability of daily life (P<0.01). Conclusion The acup-moxibustion therapy combined with quadriceps exercise has preferable clinical curative effect on knee osteoarthritis.

Effects of aerobic exercise on quality of life in patients with rheumatoid arthritis / 中华物理医学与康复杂志

Objective To assess the quality of life(QOL) in rheumatoid arthritis(RA) patients treated with 12weeks of aerobic exercise(AE) plus medication(methotrexate, MTX, and NSAIDs). Methods The research design was a randomized controlled trial. The patients in AE group received AE plus MTX and NSAIDs, and the patients in the control group received drug therapy only. Results One hundred and twenty six patients completed the trial, AE patients with improvement of 12%～28% from the baseline were better than medicine treated patients in the physical, social, emotional function, self recognized health status and total QOL. Conclusion AE is effective for the patients with RA in the improvement of QOL.

Determination of contents of salvianolic acid B and danshensu and protocatechuic aldehyde of Shuangdan Oral Solution by RP-HPLC / 中成药

AIM:To establish a method for determining the contents of salvianolic acid B,danshensu and protocatechuic aldehyde,the effective components of Shuangdan Oral Solution(Radix et Rhizoma Salviae miltiorrhizae,Cortex moutan) by HPLC.METHODS:Experiment was carried out on a Phenomenex Luna C_(18) column(4.6 mm?150 mm,5 ?m) with a mobile phase methanol-acetonitrile-methane acid-water(30:10:1:59) at a flow velocity of 1.0 mL/min and detection wavelength at 286 nm for salvianolic acid B,a mobile phase methanol-acetonitrile-methane acid water solution [HCOOH:H_2O(2:98)](9:4:87) at a flow velocity of 1.0 mL/min and detection wavelength at 281 nm for danshensu and protocatechuic aldehyde.RESULTS:The average recoveries of salviano-(lic) acid B,danshensu and protocatechuic aldehyde were 98.6%(RSD=1.91%,n=6),99.2%(RSD=2.2%,n=6) and 97.3%(RSD=2.5%,n=6) respectively.CONCLUSION:The results show that this method is easy to operate and accurate,and can be used to determine the contents of the three effective components in Shuangdan Oral Solution.

Optimization of the Formula of Puerarin Derivative Nanoparticles by Central Composite Design / 中国药房

OBJECTIVE:To optimize the formula technology of puerarin derivative 4ac-loaded nanoparticles by central composite design. METHODS:4ac nanoparticles were prepared using solvent evaporation method, with mean diameter, encapsulation rate and yield as dependent variables, multi-linear regression and binomial fit were performed on the 3 independent variables at different level:dosages of supporter lactic acid/ glycolic acid copolymer and surfactant polyvinyl alcohol, and the diameter of pinhole. The optimum experimental conditions were predicted by response surface method. RESULTS:The binomial fitting equations of indexes were all superior to their multi-linear regression equations, and the predictive values in the established mathematical model were in good conformity with the experimental values. CONCLUSION:Central composite design plus response surface method shows a good predictability in optimizing the formula technology of 4ac-loaded nanoparticles.