Collateral disease theory has been applied to investigate the pathogenesis of chronic dermal ulcer in traditional Chinese medicine. It is suggested that deficiency of vital qi is the pathological basis of chronic dermal ulcer with collaterals stagnation as the major pathological factor, and collaterals impairment by toxin evil is the main pathological change. The important principle in treatment of chronic dermal ulcer is established as strengthening the body resistance, dredging collaterals and removing toxins, and this enriched the theory of wound healing in traditional Chinese medicine, and has practical value.

Objective To investigate the iodine nutritional status,thyroid function and the prevalence of thyroid nodules of residents using non-iodized salt in Ningbo City,Zhejiang Province.Methods In 2011,using typical sampling method,6 villages/communities consumption of non-iodized salt were selected as study fields and residents aged 6-70 were selected as study subjects in Ningbo.Urinary iodine detection,thyroid ultrasound examination and tests of thyroid function [free triiodothyronine (FT3),free thyroxine (FT4),thyroid stimulating hormone (TSH),thyroid peroxidase antibody (TPOAb) and thyroglobulin antibody (TgAb)] were performed in all participants.Urinary iodine concentration (UIC) was determined by arsenic cerium catalytic spectrophotometry,and thyroid function was monitored by chemiluminescence method.Results A total of 1 177 residents agreed to participate in the study,482 were male,and 695 were female (including 2 pregnant women).The participants' mean age was (48.54 ± 13.98) years.The median UIC in all participants was 90.36 μg/L,and the proportions with a UIC ＜ 100μg/L was 56.07％ (660/1 177).Furthermore,the median UIC in male was 97.05 μg/L and in female was 83.84 μg/L,there was a significant difference in UICs between male and female (Z =-2.99,P ＜ 0.05).Similarly,significant difference in UICs was observed among age groups (x2 =99.34,P ＜ 0.01).Among the participants,19.88％ had thyroid nodules,with standardized prevalence rate of 13.95％.Furthermore,in male,11.83％ had thyroid nodules,with standardized prevalence rate of 8.11％,and in female was 25.47％,with standardized prevalence rate of 19.83％,there was a significant difference in the detection rate of thyroid nodules between male and female (x2 =33.25,P ＜ 0.01).Likewise,significant difference in the detection rate of thyroid nodules was observed among age groups (x2=49.65,P＜ 0.01),and there was a positive and significant correlation between the detection rate of thyroid nodules and increasing age (x2trend =44.22,P ＜ 0.01).Conclusions The residents who using non-iodized salt in Ningbo City are in the status of iodine deficiency.The detection rate of thyroid nodules is higher in female than in male and it has increased with age.

0.05).The infection rate in first intermediate host(snails), second intermediate host(crabs) and animal reservoir hosts was 0.05%(9/19 368), 31.1%(15 627/50 313) and 11.9%(52/438) respectively.Evidently, natural nidi for Paragonimus spp.still exist in Ningbo City.

Objective To observe the effect of acupuncture on the infracted area and apoptosis of rats with brain contusion.Methods Feeney's method was used to establish brain contusion model.The 40 rats were randomized into sham-operation,model,acupuncture and naloxone (NX) group with 10 in each.Acupuncture was performed for the rats of acupuncture group and NX was injected intraperitoneally for the rats of NX group.The treatment was done once everyday,7 days altogether.Then the brain histotomy was prepared after all the treatment finished.Computer image analysis system was used to detect the infracted area.TUNEL method was adopted to detect the apoptosis.Results The brain contusion in the model group was severe,there were lots of apoptotic cells and the infracted areas were bigger than the injured areas (P0.05).Conclusion Acupuncture can decrease the infracted areas and apoptosis of the rats with brain contusion,being effective in anti-secondary brain injuries.

Objective: To understand the concentrations and source of SO42-,NO3-,Cl- and NH4+ in atmospheric PM2.5 in Zhoushan,and to provide reference for controlling PM2.5 and formulating effective environmental protection measures. Methods: Monitoring sites in new districts of Zhoushan were set up to continuously collect PM2.5 from 10th to 16th of each month and under the hazy weather during 2015-2016（AQI > 200）. The mass concentration of PM2.5 was measured by weighing method,and the concentrations of SO42-,NO3-,Cl- and NH4+ in PM2.5 components was detected by ion chromatography. Results: The average daily concentration of PM2.5 in Zhoushan from 2015 to 2016 was（40.91±27.39）μg/m3. The concentration of the four water-soluble non-metal ions in PM2.5 components was 3.56-103.03 μg/m3,with an average of（23.06±20.00）μg/m3,accounting for about 56.64% of PM2.5 contents. The average monthly concentration of SO42- was the highest[（10.35±6.48）μg/m3],while the average monthly concentration of Cl- was the lowest [（0.49±0.73）μg/m3]. The concentration of the four ions was the highest in winter[（37.56±27.74）μg/m3]and the lowest in summer[（12.32±5.88）μg/m3]. The differences between different seasons was statistically significant（P<0.05）. The highest concentration of NO3- occurred in winter,which was（14.48±13.28）μg/m3. The concentration ratio of NO3- to SO42- ranged from 0 to 2.58,with an average of 0.55. There were 28 days（14.74%）with the ratio greater than one,22 days of which was in winter. Conclusion The concentration of SO42- was the highest and Cl- was the lowest in atmospheric PM2.5 in Zhoushan. The highest concentration of the four ions occurred in winter. The concentration of NO3- in winter was higher than that of SO42-,suggesting that motor vehicle exhaust might be the main source of PM2.5 in winter.

OBJECTIVE: To explore the effects of Chinese herbs for replenishing qi and resolving stagnation on hypoxia-inducible factor-1alpha (HIF-1alpha) and vascular endothelial growth factor (VEGF) in granulation tissue of skin ulcers in rats with syndrome of blood stasis and qi deficiency. METHODS: Diabetic rats with back full-thickness skin lesion and syndrome of blood stasis and qi deficiency were divided in to five groups: untreated group, basic fibroblast growth factor (bFGF)-treated group, Yiqi Huayu Recipe (a recipe for replenishing qi and resolving stagnation)-treated group, Yiqi Recipe (a recipe for replenishing qi)-treated group and Huayu Recipe (a recipe for resolving stagnation)-treated group, and another eight normal rats served as normal control group. Immunohistochemical method and image analysis were used to test the expressions of HIF-1alpha and VEGF in granulation tissue of skin ulcers in rats with diabetes. RESULTS: In the untreated group, the expression of HIF-1alpha was significantly increased and the expression of VEGF was significantly decreased as compared with those in the normal control group (P<0.01). The expression of HIF-1alpha was obviously lower (P<0.01) and the expression of VEGF was significantly higher in the four drug treated groups as compared with those in the untreated group. In the Yiqi Huayu Recipe-treated group, the expression of HIF-1alpha was obviously lower than those in the bFGF-treated, Yiqi Recipe-treated and Huayu Recipe-treated groups (P<0.05 or P<0.01), and the expression of VEGF was significantly higher than that in the bFGF-treated group (P<0.01). CONCLUSION: Chinese herbs for replenishing qi and resolving stagnation can promote the wound healing in rats through reducing the expression of HIF-1alpha, accelerating the expression of VEGF in granulation tissue of skin ulcers in rats with diabetes and ameliorating the status of ischemia and hypoxia.

Objective To establish the base of molecular system-theory on medicinal plants of Angelica L.and to offer molecular gists for finding the efficacy difference of them.Methods The PCR technique was utilized together with the clone technique to get the ITS gene and measure its genic sequence.Statistical analyzing and branch analyzing were carried out by Phylip software and genetic distance difference in every kinds can be calculated with MEGA3.Results ITS1-5.8 S-ITS2,belongs to one of medicinal plants of Angelica L.,its sequence length extents 600 to 629 bp.Subtracting 5.8 S,its length is 165 bp,the length of ITS is 468 bp.The medicinal plants of Angelica L.are divided into two groups by dendrogram.The genetic distance of A.sinensis from Gansu Province is obviously different from the other medicinal plants of Angelica L.,but the distance difference compared with Levisicum officinale is smaller.Conclusion It suggests that the above result be identical to the efficacy of medicinal plants of Angelica L.It may be an important reason of explaining why the efficacy between A.sinensis and other medicinal plants of Angelica L.is so different.

Objective To investigate the prevalence of thyroid nodules among residents of Ningbo City and to explore the risk factors for thyroid nodules.Methods Totally 3 596 residents aged 6-70 were selected by multistage stratified cluster random sampling in Ningbo City,2011.Thyroid ultrasound examination was performed in all participants,while salt iodine and urinary iodine were measured.Possible risk factors for thyroid nodules were analyzed by single factor and multi-factor logistic regression.Results The prevalence rate of thyroid nodules in residents of Ningbo City was 22.66％ (815/3 596),with standardized prevalence rate of 17.69％.Female [(odds ratio (OR) =2.06,95％ confidence interval (CI) =1.74-2.43],groups of aged 18-(OR =3.42,95％ CI =1.22-9.61),aged 40-(OR =13.06,95％ CI =4.80-35.51),aged 65-(OR =16.67,95％ CI =5.97-46.54) and occasional consumption of seafood habits (less than twice per week,OR =1.23,95％ CI =1.02-1.49) were significant associated with thyroid nodules.Conclusions There is no link Letween iodine nutrition and thyroid nodules.It is demonstrated that female and aged ≥ 18 groups have higher risk of thyroid nodules; frequent consumption of seafood seems to be a protective factor.

Objective To express and purify the recombinant UL7 protein of herpes simplex virus 1 (HSV-1), to prepare the corresponding UL7-specific polyclonal antibody and to preliminarily analyze the expression of UL7 protein during the proliferation of HSV-1. Methods The UL7 gene was amplified by PCR and then cloned into the pGEX-5X-1 vector for expression of UL7 protein in the prokaryotic expression system. The constructed expression plasmid, pGEX-5X-1-UL7, was transformed into E. coli BL21 (DE3) to induce the expression of UL7 protein by IPTG. The purified GST-UL7 fusion protein was used as antigen to inject the ICR mouse for the preparation of polyclonal antibody specific for UL7 protein. The titer and speci-ficity of the polyclonal antibody were analyzed by using indirect ELISA and Western blot assay, respectively. The UL7 protein-specific polyclonal antibody was used to detect the expression of UL7 protein at different time points after infecting Vero cells with HSV-1. Results The GST-UL7 fusion protein was efficiently ex-pressed in E. coli BL21 (DE3). The UL7 protein-specific polyclonal antibody was prepared with high titer (1 ∶ 105) and high specificity as indicated by the indirect ELISA and Western blot assay. The expression of UL7 protein was detected at different time points after infecting Vero cells with HSV-1. Conclusion The GST-UL7 fusion protein was obtained successfully and the UL7 protein-specific polyclonal antibody was pre-pared. Accompany with the proliferation of HSV-1, the expression of UL7 protein was detected at different time points by using the polyclonal antibody.

To set up a method of amplification for the whole CagA gene of Helicobacter pylori and its fingerprinting by restriction fragment length polymorphism (RFLP), nested PCR was employed in combination with TD-PCR to amplify the gene and EcoRI and Hind III were used to generate the RFLP fingerprinting. Target DNA fragments from 13 of 20 samples were successfully amplified and the relevant RFLP fingerprintings were obtained. It is concluded that the method can be used to amplify the whole CagA gene and CagA gene has apparent diversity of RFLP profile.
Antigens, Bacterial/*genetics ; Bacterial Proteins/*genetics ; DNA Fingerprinting/methods ; Gene Amplification/*genetics ; Helicobacter pylori/*genetics ; Helicobacter pylori/isolation & purification ; *Polymorphism, Restriction Fragment Length