Objective To explored the effects of vehicle exhaust on the cardiovascular system in a panel of 32 middle and old aged people,to discover the sensitive effect indicators of vehicle exhaust. Methods Thirty-two middle and old aged people living near a main road were followed-up,The health-related indicators and individual time-weighted outdoor exposure concentration of air pollutants were determined;The mixed model was used to evaluate association between vehicle exhaust and health indicators of cardiovascular system. Results In single-pollutant models,TNF-? was positively associated with PM10,SO2,NO2 and FVC,IL-6 was negative. The indicators of heart rate variability(HRV) in SDNN(?:-0.57,SE:0.18) ,SDNN index(?:-0.74,SE:0.20) had a strong association with PM10,and NO2 related indicators was SDNN index(?:-0.66,SE:0.17) . In the multi-pollutant model,after adjusting the effect of other pollutants,IL-6 had a positive correlation with PM10;And TNF-? was positively correlated to NO2,SO2;FVC had a negative correlation with PM10. Conclusion The air pollutants of this location show a vehicle exhausts characteristic,and the pollution is serious;TNF-?,IL-6,FVC,SDNN,SDNN index are closely related to exposure of the vehicle exhaust,and can be used to evaluate the effects of vehicle exhaust pollution on the cardiovascular system of the elderly.

ObjectiveTo observe the effect of acupoints stimulation with silver spike point therapy on insomnia.Methods60 patients with insomnia were randomly divided into the trial group and control group with 30 cases in each group. Patients of the trial group were treated by acupoints stimulation with silver spike point therapy and patients of control group were treated only with Clonopin. All patients of two groups were tested with Self-Rating Scale of Sleep (SRSS) before and after treatment.ResultsThe curative effect rate of the trial group was 86.6%; that of the control group was 60%; the curative effect of the trial group was superior to the control group (P<0.05). SRSS difference of the trial group pre-and post-treatment was 12.79±3.20; that of the control group was 10.1±3.89. There was also a significant difference between two groups (P<0.01).ConclusionThe silver spike point therapy has the better curative effect on insomnia than Clonopin.

Objective: To compare the efficacy of moxibustion with different doses for knee osteoarthritis (KOA), and explore the correlation between moxibustion dose and clinical efficacy. Methods: Sixty-eight patients with KOA who met the inclusion criteria were randomly divided into a 20-minute moxibustion group and a 40-minute moxibustion group by the random number table method, with 34 cases in each group. Dubi (ST 35), Neixiyan (EX-LE 4) and Heding (EX-LE 2) were used for moxibustion in the two groups. Each treatment lasted 20 min or 40 min for each point in the 20-minute moxibustion group and 40-minute moxibustion group, separately; the treatment was given 3 times a week and lasted for 4 weeks. The visual analog scale (VAS), Western Ontario and McMaster University osteoarthritis index (WOMAC) and traditional Chinese medicine (TCM) symptom scores were evaluated before and after treatment to compare the efficacy between different moxibustion doses for KOA. Results: After treatment, the total effective rate was 87.5％ in the 40-minute moxibustion group, versus 70.0％ in the 20-minute moxibustion group, and the difference in the total effective rate between the two groups was statistically significant (P<0.05). After treatment, the VAS scores, the total WOMAC scores and the component scores of pain, stiffness and dysfunction, and the TCM symptom scores in both groups all changed significantly when compared with those before treatment (all P<0.05). After treatment, the between-group differences in the VAS score, the total WOMAC score and the component scores of pain and dysfunction, and the TCM symptom score were statistically significant (all P<0.05), while the difference in the stiffness score in WOMAC showed no statistical significance (P>0.05). Conclusion: Either 20-minute moxibustion or 40-minute moxibustion can relieve pain, improve stiffness, dysfunction, and TCM symptoms for KOA; and 40-minute moxibustion is better in relieving pain, improving dysfunction and TCM symptoms.

Aim To explore the effects and mechanism of ginsenoside-Rg1 on SK-N-SH cells treated with chronic morphine and naloxone-precipitated withdrawal. Methods Cells were pretreated with ginsenoside-Rg1 1,2,4,8,16,32 ?mol?L-1 for 24 h,then incubated for 24 h with morphine ( 100 ?mol?L-1 ) . MTT colorimetr was used to study the effects of ginsenoside-Rg1 on the multiplication of the cells treated with chro-nic morphine. After stimulated by the same concentra-tion of morphine,cells were added with different concentrations of Rg1 1,2,4 ?mol?L -1 for 24 h before stimulated with 10 ?mol?L -1 NAL. Fuorospectrophotometry RT-PCR and Western blot techniques were used to detect the effects of ginsenoside-Rg1 on the [Ca2+ ]i,CaMKⅡ ? mRNA and protein expression of the SK-N-SH cells treated with chronic morphine and naloxone-precipitated withdrawal. Results ① Compared with control group,morphine significantly inhibited cell multiplication and resulted in calcium overload,and the expression of CaMKⅡ-? mRNA and protein noticeably increased ( P

BACKGROUND:Basic fibroblast growth factor(bFGF)can promote production of collagen,fibronectin and matrix enzyme in healing wounds.However,dysregulation of this process,such as the abnormal coordination of cell proliferation,extracellular.matrix and neovasculadzation formation,or remodeling of the wound matrix will lead to excess accumulation of scar tissues.OBJECTIVE:To investigate effects of bFGF on normal skin wound healing and hypertrophic scar formation.METHODS:Normal and hypertrophic scar fibroblasts from tissue biopsies from 5 patients who underwent plastic surgery for repairing hypertrophic scars were isolated and cultured.The expressions of collagen,fibronectin and protein synthesis were detected by RT-PCR and ELISA.The mitochonddal membrane potential changes were measured using JC-1 staining and flow cytometry.Simultaneously,adenosine tdphosphate(ATP)levels were determined by chemiluminescence method.The effects of bFGF on these indexes of normal and hypertrophic scar fibroblasts were observed.RESULTS AND CONCLUSION:Hypertrophic scar fibroblasts become slower after being exposed to bFGF,which selectively inhibited type Ⅰ collagen production in hypertrophic scar fibroblasts(P<0.05).Although bFGF inhibited type]collagen production,it had no effect on type Ⅲ collagen expression in both normal and hypertrophic scar fibroblasts.However,fibronectin expression in the normal fibroblasts was up-reguleted after bFGF treatment(P<0.05).In addition,the mitochonddal membrane potential tended to depolarization,although no statistical difference,in hypertrophic scar fibroblasts treated with bFGF(10 or 100 μg/L).bFGF treatment increased the cellular ATP levels in the normal fibroblasts,while there were no significant alterations in the hypertrophic scar fibroblasts over a treatment of bFGF(10 or 100 μg/L,P<0.05).The results suggest that there are differential effects and mechanisms on the skin fibroblasts with bFGF treatment in normal wound healing and hypertrophic scar formation.

Objective To understand the situation of iodine deficiency disorders of Cangzhou city, Hebei province, in order to provide the scientific basis for prevention and control of iodine deficiency disorders. Methods From 2007 to 2009, dynamic monitoring of iodine deficiency disorders was carried out in low iodized salt coverage places Hejian city and Xian county. Nine towns were randomly chosen in each county, 4 administrative villages were randomly selected in each town, 8 household salts were tested in each village. Every year, 1 - 3 copies of residents water samples were collected for determination of iodine; more than 100 students age 8 - 10 years old were checked the situation of goiter and urinary iodine, more than 40 students selected were measured iodine content of salt from their home; more than 50 women of childbearing age 18 - 40 years were tested of urinary iodine. Thyroid was examined with palpation; water iodine and urine iodine concentration were measured with arsenic-Ce catalytic spectrophotometry; salt iodine was detected by direct titration. Results From 2007 to 2009,median household salt iodine were 4.3,15.9,3.6,18.4,4.6,11.7 mg/kg in Hejian city and Xian county, respectively,iodized salt accounted for 34.03% (98/288), 78.82% (227/288), 29.86% (86/288), 84.72% (244/288), 37.15%(107/288),49.31% (142/288), respectively, the consuming rate of iodized salt were 27.08% (78/288),36.46%( 105/288 ), 28.13% (81/288 ), 49.31% ( 142/288 ), 37.15 % ( 107/288 ), 30.90% ( 89/288 ), respectively. Ten samples of drinking water were tested, water iodine were 5.5 - 34.4 μg/L. From 2007 to 2009, the goiter rate of students aged 8 - 10 years old was below 5%, the median of urinary iodine were 138.1,176.6,112.0 μg/L, ＜ 100 μg/L ratio were 31.6% ( 65/206 ), 25.0% ( 52/208 ) and 44.4% (91/205 ). The median of urinary iodine of child-bearing age women were 167.3,164.2,78.1 μg/L, ＜ 100 μg/L ratio were 28.7%(29/101 ), 19.2%(20/104) and 60.0%(60/100).Conclusions In areas with low coverage of iodized salt, iodine nutrition level are affected, the child-bearing age

Traditional Chinese medicines (TCM) is one of the most important sources of new drugs.The rapid development of modern science and technology has brought new opportunities for TCM.Admittedly,new academic theory is getting into a golden period of innovation.Key technologies that enbody TCM features and adapt to modern drug-screening requirements are urgently needed.After five years' endeavor,the authors' group has made great progress in the new theories and methodologies for the discovery of bioactive compounds from TCM.In this review,a total of five key technologies:library-bioactivity-structure integration,biological and chemical fishing technology,ligand-and receptor-based virtual screening,profile-bioactivity relationship and the technology for discovering bioactive equivalent combinatorial components (BECCs),were introduced.In the text,several valuable demonstrations over the TCM-based drug discovery were provided,for uncovering the scientific basis of TCM and accelerating the process of TCM modernization.

This study was aimed to screen out an optimal pharmaceutical formulation of Wuji Gastric Floating Sus-tained-release Tablets. With multicomponents of release for index, the extra-floating ability of the tablets was stud-ied with the orthogonal test of four excipients, which were HPMC (K100M), PEG 6000, sodium bicarbonate and se-tanol. The results showed that the combined optimal pharmaceutical formulation was 35% HPMC, 5% PEG 6000, 10% sodium bicarbonate, 15% setanol, 10% MCC and 25% main drug. It was concluded that Wuji Gastric Floating Sustained-release Tablets had the characteristics of slow-release and long floating duration which comply with re-quirements of formulation design. This preparation technique is with good maneuverability.

Humans ; Magnetic Resonance Imaging ; trends ; Molecular Imaging ; trends ; Plaque, Atherosclerotic ; diagnosis

Baculovirus has many advantages as vectors for gene transfer. We demonstrated that recombinant baculovirus vectors expressing p35 (Ac-CMV-p35) and eGFP (Ac-CMV-GFP) could be transduced into human kidney 293 cells efficiently. The level of transgene expression was viral dose dependent and high-level expression of the target gene could be achieved under the heterogonous promoter. MTT assay suggested that both Ac-CMV-p35 and Ac-CMV-GFP did not have cytotoxic effect on human embryo kidney 293 cells. Cell growth curve showed the Ac-CMV-p35 and Ac- CMV-GFP transduced and non-transduced cells had similar proliferation rate, so baculovirus-mediated p35expression had no adverse effect on cell proliferation. In addition, baculovirus-mediated p35 gene expression protected human embryo kidney 293 cells against apoptosis induced by various apoptosis inducers such as Actinomycin D, UV or serum-free media. These results suggested that the baculovirus vector mediated p35 gene expression was functional and it could be widely used in molecular research and even gene therapy.