Objective To study the inclusion conditions for volatile oil from Danfu Tongmai Granules.Methods With the utilization rate of volatile oil and yield rate of inclusion as indexes,the optimum inclusion conditions were selected by orthogonal design,and the inclusion compound was identified by TLC.Results The optimal inclusion conditions for volatile oil were as follows:a proportion of 1 ∶7(mL ∶g) for oil to ?-cyclodextrin,stirring for 4 hours at 40 ℃.TLC results showed that inclusion process was successful and the main components of volatile oil were similar before and after inclusion.Conclusion This methods can be used for producing ?-cyclodextrin inclusion compound on a large scale.

AIM: Theaflavins are the major constituent of black tea, and have a lot of pharmacological activities, for example, regulating blood fat, anti-oxygen, anti-tumor, resisting cerebrovascular disease, and so on. Previously, theaflavins' effect on human fat metabolism mostly belongs to macro-analysis, but this experiment try to find out the effect of theaflavins on the differentiation of rabbit mesenchymal stem cells (MSCs) into adipocytes in terms of cells. METHODS: The experiment was completed in the center laboratory of Anhui Provincial Hospital Affiliated to Anhui Medical University from May to September in 2007.①Ten rabbits of cleaning grade and 4-8 weeks old were provided by the animal experiment center of Anhui Medical University. The disposal of animals in process of experiment referred to the ethical standard of animals.②The heparinized rabbits were sacrificed in drugged state, then bilateral femur, tibia and humerus were obtained and their soft tissues were removed, cutting epiphysis of two sides including epiphyseal plate. The MSCs were isolated and cultured with whole bone marrow culture method, inoculated at a density of 2?108 L-1. When the cells grew to the fusion of 80%-90%, digesting and passage culture were performed. Cells of the third generation were collected and inoculated at a density of 1?105/cm2 to be cultured for 2 weeks with DMEM adipocyte-induced liquid, which contained recombinant human insulin 10 mg/L, dexamethasone 10-6 mol/L, and IBMX 0.5 mmol/L. Three groups were set up: adipocytes control group in 1 mL adipocyte-induced liquid; theaflavins group with the 500 ?g/L theaflavins in 1 mL adipocyte-induced liquid; blank group in equal amount of ordinary DMEM culture medium.③The cultured cells of the second generation were selected to draw growth curve; oil O staining was used to identify the induced adipocytes and calculate the differentiation efficiency of adipocytes. RESULTS: ①Cell growth curve: MSCs had vigorous reproductive activity, 1 day of the culture was the cell adaptive phase, 3 days was the increased logarithmic phase, and 8 days was the platform phase. After 8 days, cell proliferation quickly stepped down and cells reduced.②Identification of adipocytes by oil O stain: Lipid droplets in adipocytes were stained into salmon pink, and the nucleus was stained into blue. Most of MSCs in adipocyte control group were induced into adipocytes, the differentiation efficiency was (64.8?4.8)%, while that in theaflavins group was only (32.0?3.4)%. No adipocytes obviously formed in blank control group. CONCLUSION: Theaflavins can obviously inhibit differentiation from rabbit MSCs to adipocytes.

PURPOSE To investigate the effects of bcr3/abl2 anisense oligodeoxynucleotide (ASO) on chronic myeloid leukemia (CML). METHODS The effects of bcr3/abl2 ASO in 15 CML patients were evaluated by morphological observation, flow cytometer (FCM) techniques and DNA fragment measurement. RESULTS bcr3/abl2 ASO can induce apoptosis in CML. CONCLUSION Antisense techniques may provide a new way to cure CML.

Abstract: Objective　To analyze the prevalence of peripheral arterial disease (PAD) among residents in Shenzhen and explore its relationship with different obesity statuses, to provide data support for understanding the prevalence of PAD in China and a basis for formulating prevention and control policies to prevent PAD. Methods　From April 2021 to December 2021, a multi-stage stratified random sampling method was used to select permanent residents aged 18 years or older from 54 community neighborhood committees in Shenzhen as the study population. Data were collected using questionnaires, physical examinations, and laboratory tests. A generalized additive model was fitted and plotted using the R package, and logistic regression models were used to analyze the association between different obesity status groups and PAD. Results　Among the 6 230 study subjects, the prevalence of PAD in the study population was 6.21%, and the prevalence of PAD increased with age, with the lowest rate of 4.67% in the 18-<25 age group and the highest rate of 33.33% in the ≥85 age group. In addition, the prevalence of PAD increased with increasing body mass index (BMI) or waist circumference. Analysis of multifactorial logistic regression models showed that both overall obesity (OO) classified by BMI and central obesity (CO) classified by waist circumference may increase the risk of PAD (OO statistic value OR=2.63, 95%CI:1.97-3.50; CO statistic value OR=2.32, 95%CI:1.79-2.99). When combining BMI and waist circumference classification, compared to those who were neither OO nor CO, individuals who were both OO and CO had a significantly higher risk of PAD (OR=2.61, 95%CI:1.99-3.44). Conclusions　The prevalence of PAD among adults in Shenzhen is not optimistic, and the elderly need additional attention. Both OO based on BMI and CO based on waist circumference are independent risk factors for PAD. The joint use of BMI and waist circumference grouping helps to better classify and manage people at risk of PAD.

Objective To investigate the mechanisms of the inhibitory effects of peripheral electrical stimu- lation(PES)on chronic central pain(CCP)after spinal cord injury(SCI).Methods Twenty-four male Sprague- Dawley rats with CCP following SCI were randomly divided into three groups:a group without stainless steel needles implanted (NSSN group,n=8),a group with a stainless steel needle implanted but no peripheral electrical stimula- tion applied(NPES group,n=8)and a PES group(PES group,n=8).The rats' CCP was evaluated through ob- serving their response to nociceptive stimulation by means of the paw withdrawal pressure threshold(PWPT)and the paw withdrawal latency(PWL).Spontaneous pain behaviors including autophagia and scratching were observed at the same time.PES was applied via stainless steel needles inserted into standard acupoints on the hind limps and the back.The expression of the NMDA receptor 1(NR-1)subunit in the spinal cord horn was measured using immuno- chemical methods.Results Compared with the NSSN and NPES groups,CCP in the PES group was alleviated, PWPT and PWL were dramatically increased(P＜0.01)and the expression of NR-1 was obviously decreased (P＜0.01).Conclusion Peripheral electrical stimulation may alleviate chronic central pain after spinal cord injury in rats.

Objective · To estimate correlation between coronary artery calcification score (CaCS) and prognosis of peritoneal dialysis (PD) patients.Methods · The clinically stable patients who had undergone PD for at least 2 months were recruited for this prospective and observational cohort study.Coronary artery calcification was assessed by multislice spiral computed tomography and was recorded according to the Agatston score. The patients were assigned to 3 groups, i.e. no calcification group (CaCS=0), low calcification group (0

Hydroxypropyl-chitosan with substitution degree of 0.56 is prepared by the reaction of chitosan and epoxypropane by controlling condition. The water solubility of modified hydroxypropyl-chitosan is enhanced. When suitable concentration of hydroxypropyl-chitosan water solution responds to certain concentration of sodium polyphosphate based on ion gel method, the hydroxypropyl-chitosan nano-spheres with particle size of 500-700nm are obtained. Transmission electron micrograph shows that the shape of prepared hydroxypropyl-chitosan nano-sphere is uniform.

BACKGROUND: There are pressure sensors in carotid-sinus, which are very sensitive to blood pressure regulated by ions and play an important role in the regulation of blood pressure. But it is yet not very clear how different ions regulate the blood pressure through pressure sensors in carotidsinus.OBJECTIVE: To observe the effect of different ions at various concentrations outside the carotid-sinus.DESIGN: Self-control experiment.SETTING: Preclinical Experiment Center, Fourth Military Medical University of Chinese PLA.MATERIALS: The experiment was accomplished in the Preclinical Experiment Center, Fourth Military Medical University of Chinese PLA from December 2000 to June 2001. Totally 18 New Zealand pure strain rabbits were provided by the Aninal Experimenting Center of Fourth Military Medical University of Chinese PLA. They were standard grade Ⅱ, of either gender and body mass was (2.0±0.2) kg.METHODS: The rabbits were divided into Na+, K+ and Ca2+ groups according to random numbers, and each group consisted of 6 rabbits. After anaesthesia, tracheal intubatton was performed on the rabbit, and bilateral carotid arteries were separated with carotid-sinus separated on one side and vessel intubatton performed in the other side for blood pressure measurement. Then various concentrations of Na+, K+ and Ca2+ ions were added outside the carotid-sinus with the pipette to make the carotid-sinus completed immersed in the ion solutions. The basal blood pressure and the peak value after ions addition were recorded respectively.MAIN OUTCOME MEASURES: The basal blood pressure and the peak value after ions addition.RESULTS: After Na+ (0.15, 1.5 mol/L) was added the blood pressure was(97±12), (83±17) mm Hg. It was decreased significantly compared with the basal value (106±14), (105±12) mm Hg (t=2.946, P ＜ 0.05). K+ (0.4 mol/L)decreased the blood pressure significantly [(106±12), (64±13) mm Hg, (t=13.496, P ＜ 0.01)], but other concentrations of K+ were not effective. Ca2+(0.07 mol/L) increased the blood pressure to (113±16) mm Hg compared with the basal value (103±12) mm Hg (t=-3.627, P ＜ 0.01).CONCLUSION: Na+, K+ and Ca2+ regulate the blood pressure by acting on the carotid-sinus directly. High concentrations of Na+ and K+ possess the effect of decreasing the blood pressure, while high concentrations of Ca2+increases it, which may be an important mechanism of blood pressure regulation.

To study the chemical constituents of Asarum himalaicum, fifteen compounds were isolated from a 70% ethanol extract by using a combination of various chromatographic techniques including column chromatography over silica gel, Sephadex LH-20, and semi-preparative HPLC. By spectroscopic techniques including 1H NMR, 13C NMR, and HR-ESI-MS, these compounds were identified as 4-demethoxyaristolochic acid BII (1), aristolochic acid I (2), aristolochic acid Ia (3), 7-hydroxyaristolochic acid I (4), aristolochic acid IV (5), aristolic acid II (6), debilic acid (7), aristololactam I (8), 9-hydroxyaristololactam I (9), 7-methoxyaristololactam IV (10), (2S)-narigenin-5, 7-di-O-beta-D-pyranosylglucoside (11), 4-hydroxybenzoic acid (12), 3, 4-dihydroxybenzoic acid (13), 4-hydroxycinnamic acid (14), and beta-sitosterol (15). All of these compounds (1-15) were obtained from A. himalaicum for the first time. Among them, 1 was identified as a new compound, and compounds 3-6, 9, 12-14 were isolated from Asarum genus for the first time. Since the kidney toxicity of aristolochic acids and aristololactams has been reported, the result of this investigation suggests that it should be cautioned to use A. himalaicum as a medicine.