In the view of the idea that the utilization of wild plants and animals in traditional Chinese medicine is destroying the biodiversity, this article discusses the relationship between traditional Chinese medicine and the biodiversity from a new point of view. The authors consider that reasonable utilization of the wildlife in traditional Chinese herbal medicine is beneficial to the protection of wildlife under proper management and guidance. However, there is still a long way to go to balance the relationship between the wildlife protection and exploration. In view of this, some propositions are put forward, including enforcing the relative laws and rules for herbal resources protection, carrying out the research work of the background data, formulating the standard for the classification of the rare and endangered species, accelerating the investigation of the substitute resources of extinctive wildlife for medical use, enforcing the citizens' consciousness of wildlife protection and developing the industrial and artificial cultivation of traditional Chinese herbal medicinal plants and animals.

In this study,we constructed 2 eukaryotic expressing plasmids namely pcS2?S and pFP,encoding HBV preS2+S envelope protein and human IL 2/IFN ? fusion protein, respectively. The double plasmid fusion protein was used as an adjuvant in preparation of a treatment type HBV gene vaccine. To investigate its feasibility for use as a therapeutic DNA vaccine, we've evaluated the immune response after injection into healthy mice, HBV transgenic(Tg) mice, New Zealand rabbits and Rhesus monkeys. The results showed that the therapeutic DNA vaccine can improve: (1)the CTL activity; (2)the HBsAg(30?g/ml) specific T lymphocyte proliferation in which the stimulation index(SI) and cytokines(IL 2/IFN r) release levels of the pS2.S immunized group(SI=5.6?0.9; 226.3?41.1/51.1?7.1pg/ml) were significantly higher( P

The peptides from HBV cytotoxic T lymphocyte(CTL) epitope were used to either stimulate or impact the immune effector (E) or CTL target (T) cells respectively, in order to investigate the cellular immune response induced by DNA vaccination in both healthy and HBV transgenic (Tg) mice. It was found that HBV DNA based immunization could induce CTL activity in healthy BALB/c mice, with intensity correlated with the E/T ratio and IFN ? secretion level in its supernatants. The target cells hit by HBsAg CTL epitope peptide(pp20) could be lysed by the active CTL induced by HBV DNA vaccine encoding preS2 and HBsAg, while the cell lysis could not be observed in the target cells impacted by the HBcAg CTL epitope peptide (pp10). The supernatant IL 12 secretion level (211 3?39 8pg?ml -1 ) in the DNA vaccination group was significantly( P

Objective To estimate the prevalence of thyroid dysfunction and thyroid autoantibodies in adults with alopecia areata (AA), and to analyze the relationship between alopecia areata (AA) and thyroid autoimmunity in adults.Methods A predesigned questionnaire was used to collect data on demographic information, medical history,and family history of AA in first-degree relatives from patients with AA.Thyroid function was evaluated, and anti-thyroid peroxidase antibody (TPO-Ab) was screened in all the patieuts.Statistical analysis was carried out by the chi-square test and Fisher's exact test.Results Totally, 209 patients with AA were enrolled.Of these patients, 6.7％ were complicated by thyroid diseases, 20.6％ were positive for TPO-Ab.Compared with the patients without TPO-Ab, those with TPO-Ab showed a significant increase in the proportion of patients with early-onset (＜ 18 years) AA (x2 =5.589, P =0.025),prevalence rate of alopecia totalis/alopecia universalis (x2 =9.990, P=0.006) and thyroid diseases (x2 =12.279, P =0.002), and incidence rate of AA in first-degree relatives (x2 =14.426, P =0.001).Conclusions The positive rate of TPO-Ab is increased in patients with AA.It is recommended to evaluate thyroid function and to screen for thyroid autoantibodies in patients with AA despite of the absence of clinical manifestations of thyroid diseases.

Objective To construct extravillous trophoblast(EVCT) tissue microarray and detect the expression of phosphorylated signal transducer and activator of transcription 3 (pStat3) in EVCT and to explore the role of Stat3 signal transduction pathway in the pathogenesis of preeclampsia.Methods Placentas of 80 pregnant women with preeclampsia and 58 normal pregnant women hospitalized in the Third Affiliated Hospital of Zhengzhou University from December 12,2007 to December 31,2010 were recruited for constructing EVCT tissue microarray.Vimentin,cytokeratin and human leukocyte antigen-G were used to verify EVCT tissue microarray immunohistochemically.The difference of pStat3 expression was detected between preeclampsia patients and normal pregnant women by immunohistochemical staining.Rank sum test,Kruskai-Wallis H test,t-test and Chisquare test were used for statistical analysis.Results Placental tissues from 57 preeclampsia patients (109 tissue cores) and 31 normal pregnant women (65 tissue cores) were suitable for constructing EVCT tissue microarray.The target tissue was positive for both cytokeratin and human leukocyte antigen-G staining and negative for vimentin,which was in accordance with the characters of EVCT tissue.Totally 86.4％(76/88) samples retained the target EVCT tissues,which meant EVCT tissue microarray was constructed successfully.The expression of pStat3 was significantly decreased in EVCT of preeclampsia patients (51.1％,24/47),the early onset (50.0％,19/38) and severe preeclampsia patients(52.3％,23/44) as compared to normal pregnant women (72.4％,21/29) (U=492.00,473.00 and 401.00,P＜0.05 respectively).Conclusions EVCT tissue microarray has been successfully constructed,and could be used to detect pStat3 expression.pStat3 signal transduction pathway may be involved in the development of preeclampsia.

BACKGROUND:As a bone scaffold material,β-tricalcium phosphate has good biocompatibility, osteoinductive, and biomechanical properties.
OBJECTIVE:To study the effect of al ogeneic osteoblasts compounded withβ-tricalcium phosphate in repairing rabbit radial defects.
METHODS:A total of 45 rabbit radial defect models were made and divided into three groups in random. Experimental group was repaired with the compound of al ogeneic osteoblasts andβ-tricalcium phosphate;
control group withβ-tricalcium phosphate;and blank control group with nothing. The new bone formation of each group was observed and assessed by X-ray and histopathological analysis at weeks 4, 8, 16 after implantation for evaluation of the bone repairing effect.
RESULTS AND CONCLUSION:With the repair time, the experimental group appeared to complete bone defect repair gradual y. By the end of 16 weeks, the X-ray showed that the bone cal us between the scaffold and the host was completely ossified, and bone defects were completely repaired in the experimental group. Histopathological observation showed continuous cortical bone formed in the defect area, and canal recanalization realized in the experimental group. Additional y, the repair effect in the experimental group was better than that in the control and blank control group at different time points (P<0.01). It is suggested that the al ogenic osteoblasts/β-tricalcium phosphate compound has the better effects on guiding bone regeneration and preventing from nonunion.

Objective To explore the relationship and clinical significance between the serum levels of oxidized low density lipoprotein (Ox-LDL) and soluble P-selectin (SP-S),and carotid atherosclerosis (CA) in metabolic syndrome (MS) patients.Methods In 103 cases of MS patients and 44 healthy subjects (control group),in MS patients with 3 MS diagnostic criteria for the low risk group (51 cases),with ≥ 4 MS diagnostic criteria for high risk group (52 cases).Carotid artery intima-media thickness (IMT) and plaque was measured by color Doppler ultrasound,serum Ox-LDL,SP-S was determined by enzyme linked immunosorbent assay,and pearson regression analysis of linear correlation and classification of two non condition Logistic was performed.Results The serum levels of Ox-LDL,SP-S,carotid artery IMT in low risk group and high risk group were higher than those in control group [(36.42 ±7.17) μg/L and (54.44± 8.10) μg/Lvs.(30.08±7.15) μg/L,(71.46± 12.52) μ g/Land (89.33±20.28) μg/Lvs.(49.95 ± 12.49) μ g/L,(0.86 ± 0.11) mm and (1.00 ± 0.10) mm vs.(0.69 ± 0.11) mm],the difference was statistically significant (P ＜ 0.01).The incidence of plaque in high-risk group and low-risk group was significantly higher than that in control group [55.8％ (29/52) and 45.1％ (23/51) vs.15.9％ (7/44)],the difference was statistically significant (P ＜ 0.01).Linear correlation analysis results of Pearson display,Ox-LDL was positively correlated with SP-S (P ＜0.01).Conclusion Serum Ox-LDL and SP-S are independent risk factor for carotid atherosclerosis in MS patients,they can evaluate progression of carotid atherosclerosis in patients with MS.

AIM: To explore the effect of L-arginine (L-Arg) on the arrhythmia induced by ischemia/reperfusion (IR) of the right coronary artery in rabbits. METHODS: 48 healthy adult rabbits were divided into 4 groups (n=12 of each) randomly: IRa group (120 min reperfusion after 30 min ischemia), IRb group (120 min reperfusion after 120 min ischemia), IRa+L-Arg group and IRb+L-Arg group. I/R model was established by occluding and loosening the root of the right coronary artery in rabbits. The changes of ECG and arrhythmia were recorded and graded. RESULTS: ① The longer time of IR was, the higher the score of the arrhythmia was found. The incidence of atrial-ventricular block (AVB), sinus-atrial block (SAB), even sinus arrest were detected and aggravated gradually. ② The incidence of AVB was decreased and from Ⅲ?→Ⅱ?→Ⅰ? markedly, some of sinus and atrial arrhythmia were transformed into sinus rhythm gradually, and all of the arrhythmia scores in IRa group were decreased significantly as compared with the same time phases of IRb group (P

The protective effect of niacinamide on interleukin-1beta (IL-1beta)-induced annulus fibrosus (AF) type II collagen degeneration in vitro and the mechanism were investigated. Chiba's intervertebral disc (IVD) culture models in rabbits were established and 48 IVDs from 12 adult Japanese white rabbits were randomly divided into 4 groups: normal control group, niacinamide-treated group, type II collagen degneration group (IL-1beta) and treatment group (niacinamide+IL-1beta). After culture for one week, AFs were collected for inducible nitric oxide synthase (iNOS), cysteine containing aspartate specific protease-3 (Caspase-3) and type II collagen immunohistochemical examination, and type II collagen reverse transcription polymerase chain reaction (RT-PCR). The results showed that rate of iNOS positive staining AF cells in the 4 groups was 17.6%, 10.9%, 73.9% and 19.3% respectively. The positive rate in treatment group was significantly lower than in the type II collagen degeneration group (P<0.01). Rate of Caspase-3 positive staining AF cells in the 4 groups was 3.4%, 4.2%, 17.6% and 10.3% respectively. The positive rate in treatment group was lower than in the type II collagen degeneration group (P<0.01). Type II collagen staining demonstrated that lamellar structure and continuity of collagen in treatment group was better reversed than in the degeneration group. RT-PCR revealed that the expression of type II collagen in treatment group was significantly stronger than that in type II collagen degeneration group (P<0.01). It was concluded that niacinamide could effectively inhibit IL-1beta stimulated increase of iNOS and Caspase-3 in AF, and alleviate IL-1beta-caused destruction and synthesis inhibition of type II collagen. Niacinamide is of potential for clinical treatment of IVD degeneration.

OBJECTIVE To study the characteristics of drug resistance and infection of mycoplasma. METHODS The mycoplasma was detected by culture,with an observation of drug susceptibility to 10 antibiotics. RESULTS The total positive rate of mycoplasma was 36.79%;of them Ureaplasma urealyticum(Uu) was 76.71%,Uu+ Mycoplasma hominis(Mh) was 19.87%,and Mh was 3.42%.The resistance rates to other antimicrobials were over 50.00% except JOS,CLA,MIN,DOX and OFL which were lower.The resistant rate to antibiotics for the mixed infection of Uu+Mh was significantly higher than Uu affection alone,from them to 6 antibiotics was over 60.00%. CONCLUSIONS The detection of mycoplasma infection and its drug resistance play an important guide role in the clinical treatment of urogential tract infection.