The sequences of ITS, matK, rbcL and psbA-trnH of 9 Gynostemma species or variety including 38 samples were compared and analyzed by molecular phylogeny method. Hemsleya macrosperma was designated as outgroup. The MP and NJ phylogenetic tree of Gynostemma was built based on ITS sequence, the results of PAUP phylogenetic analysis showed the following results: (1) The eight individuals of G. pentaphyllum var. pentaphyllum were not supported as monophyletic in the strict consensus trees and NJ trees. (2) It is suspected whether G. longipes and G. laxum should be classified as the independent species. (3)The classification of subgenus units of Gynostemma plants is supported.
Gynostemma ; classification ; genetics ; Molecular Sequence Data ; Phylogeny ; Plant Proteins ; genetics ; Sequence Analysis, DNA

Objective To observe the effect of evidence-based nursing on improvement of preoperative fears and perioperative quality of life in patients undergoing general surgery. Methods 160 cases of general surgery patients in our hospital from September 2009 to September 2010 were chosen as the research object.The 160 cases were divided into the control group and the observation group with 80 cases in each group.The control group was taken with perioperative routine care.The observation group was given evidence-based nursing.The preoperative fear score (FAVS),perioperative quality of life (QOL)score and treatment compliance for the two groups were compared. Results The fear scores for the two groups of patients before treatment were compared.The score in the observation group was significantly lower than the control group,the difference was significant.The scores of preoperative and postnperative quality of life for the two groups were compared.The patients of the observation group were significantly higher than the patients of the control group,the difference between the two groups was significant.The treatment compliance of the observation group was better than that of the control group. Conclusions The evidence- based nursing model can improve preoperative fears and perioperative quality of Wife of patients undergoing general surgery,improve patients' treatment compliance,and promote the success of operation and recovery of patients.It is worthy of clinical application.

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This study analysed the tissue specific expression of critical genes involved in chlorogenic acid and luteolin biosynthesis, for exploiting the molecular mechanism of components biosynthesis in Lonicera confusa. Expression of PAL, 4CL, C4H, CHS, CHI, FNS and HQT gene families of chlorogenic acid and luteolin biosynthesis-related genes in buds and leaves of L. confusa were analyed by Real-time PCR. Expressions of PAL1, C4H1, 4CL1, CHS1, CHI3 and HQT2 in buds were lower than that in leaves, and expressions of PAL3, 4CL2, CHI2 and FNS2 in buds were higher than that in leaves. The results indicated that that PAL3 and 4CL2 may be associated with accumulation of chlorogenic acid, and the expression patterns of PAL1, CHS1, CHI3 and HQT2 in buds and leaves of L. confusa were different with L. japonica. This study provided some theoretical basis for the further research on genetic mechanism of active components differences in L. confusa and L. japonica.
Biosynthetic Pathways ; Chlorogenic Acid ; metabolism ; Gene Expression Regulation, Plant ; Lonicera ; genetics ; metabolism ; Luteolin ; biosynthesis ; Multigene Family ; Plant Proteins ; genetics ; metabolism

Objective:To observe the therapeutic effect of acupuncture-moxibustion at different intervals on persistent allergic rhinitis. Methods: A total of 90 patients conforming to the inclusion criteria were randomized into three groups named A, B and C by randomized block method. Patients in all three groups received the same treatment of acupuncture and herbal cake-partitioned moxibustion at the same acupoints, while the treatment frequency was different. Patients in group A received the treatment once a week, group B twice a week and group C three times a week, and all the treatment lasted for 4 weeks. The total nasal symptom score (TNSS), total ocular symptom score (TOSS) and Sino-nasal outcome test-20 (SNOT-20) were evaluated before and after treatment. The self-rating score of symptoms was evaluated during treatment and 2 weeks after treatment. Results: The total effective rate was 80.0% in group A, 93.3% in group B, and 100.0% in group C. The total effective rate in group A was statistically different from that in group B and group C (both P＜0.05), but there was no significant inter-group difference in total effective rate between group B and group C (P＞0.05). After treatment, scores of TNSS, TOSS and SNOT-20 in all three groups dropped significantly, and statistically different from those before treatment (all P＜0.05); between-group comparison showed group B and group C decreased more obvious than group A (all P＜0.05). In self-rating score of symptoms, there were no inter-group statistically significant differences in the first 3-week treatment (all P＞0.05); after 4-week treatment, the score in group A was higher than that in group B and group C, and showed statistical significant (both P＜0.05); at 2 weeks after treatment, the score in group A was higher than that in group B and group C based on an everyday record, showing statistical significance (both P＜0.05). At the 11th day after treatment, the score in group B was higher than that in group C (P＜0.05). There were no significant differences between group B and group C at other time points (all P＞0.05). Conclusion: All three protocols are effective for allergic rhinitis. With the increase of treatment frequency, the therapeutic efficacy with a treatment frequency of twice a week and three times a week is superior to that of once a week. Frequency of three times a week has a better long-term effect than once and twice a week, together with the least fluctuation of symptoms.

Objective The aim of the study was to investigate the expression of P-glycoprotein (P-gp)and nuclear factor κB (NF-κB) in the cerebral cortex of rat with chronic fluorosis,and to reveal the mechanisms of damaged nervous system resulted from the toxicity of fluoride.Methods Sixty SD rats were randomly divided into three groups.The rats in each group were given drinking water containing different levels of fluoride:control group less than 0.5 mg/L,small amount of fluoride exposure group 10.0 mg/L and large amount of fluoride exposure group 50.0 mg/L.The animals were examined at the sixth month after initiating the experiment.Protein levels of P-gp and NF-κB in brain tissues were detected by immunocytochemistry and Western blotting,and the P-gp protein and mRNA level by quantitative real time PCR method.Results As compared to the control group(28.21 ±6.13),the numbers of positive staining cells by P-gp antibody in the cortex of rat brains were significantly increased in both the small and the large amount of fluoride exposure groups[(48.46 ± 8.00),(53.72 ± 9.15),respectively,all P ＜ 0.05] ; the protein levels in the control group(100.00 ± 3.86)％ detected by Western blotting were significantly increased in the cortex of rat brains treated with fluoride in both the small and the large amount of fluoride exposure groups[(189.47 ± 3.14)％,(191.36 ± 11.09)％,respectively,all P ＜ 0.05].The significantly increased expression of NF-κB at the protein level was observed in the cortex of rat brains of the small and the large amount of fluoride exposure groups[(365.97 ± 6.04)％ and (417.15 ± 10.89)％,respectively] as compared with the control group[(100.00 ± 10.07)％,all P ＜ 0.05].The mRMA level of P-gp in the cortex of rat brains of the small and the large amount of fluoride exposure groups(2396 ± 427,3479 ± 371,respectively) were higher than that of the control group(260 ± 106,all P ＜ 0.05).Conclusion The increased expressions of P-gp and NF-κB in the cortex of rat brains are induced by chronic fluorosis,which might be connected with the mechanism of brain damages.

Objective To evaluate the clinical application of May-Grunwald-Giemsa staining followed by fluorescence in situ hybridization (MGG-FISH) technique in the differentiation diagnosis of Ph-chromosome positive acute lymphoid leukemia (Ph + ALL) from chronic myeloid leukemia in lymphoid blast crisis(CML-LBC). Methods The bone marrow smears of 4 patients with Ph+ ALL, 4 patients with CML-LBC, 1 patient with CML in myelocytic blast crisis complicated with lymphoma and 1 patient with CML in mixed blast crisis were assayed with the MGG-FISH technique in which the spectrum green labeled BCR and spectrum orange labeled ABL dual color dual fusion probes were used. Based on the morphological classification, the percentages of BCR-ABL positive cells were subsequently determined respectively in the erythroid, myeloid and lymphoid hneages for the 10 specimens. Results According to the MGG-FISH analysis, the erythroid lineage was not involved in the 4 Ph+ ALL specimens without BCR/ABL positive cells. While the BCR/ABL positive percentage of myeloid cells was 11% (1/9), 8% (1/12), 0% (0/8) and 10% (1/10) respectively and that of lymphoid cells was 97% (76/78), 98% (87/89), 98% (97/99) and 97% (75/77) respectively. On the other hand, the BCR/ABL positive percentage was 100% (8/8), 91% (10/11), 82% (9/11), 88% (7/8) in the erythroid lineage, 89% (8/9), 96% (94/98), 100% (47/47), 98% (40/41)in the myeloid lineage and 96% (78/81), 93% (52/56), 96% (68/71), 95% (58/61) in the lymphoid lineage respectively for the 4 CML-LBC specimens. The BCR/ABL positive percentages of the other 2 specimens were all above 80% and through MGG-FISH analysis we also identified the source of the malignant clones and ascertained the diagnosis of the 2 patients. Conclusions The MGG-FISH technique has proved useful in providing rapid and precise differentiation between Ph + ALL and CML-LBC. The source of the malignant clones can also be analyzed by this technique.

Objective In order to analyze the variation of HA genes of influenza viruses (H1N1) by being compared with the vaccine strain A/California/07/2009(H1N1) recommended by WHO ,influenza viruses (H1N1) isolated from 2009 to 2014 were selected to do this study .Methods According to the different isolating time and place ,47 strains of H1N1 collected from 2011 to 2014 were selected .Then the 47 strains′ nucleotide sequence of HA genes which were sequenced in the study and other 25 se‐quences of HA genes which were sequenced in 2009 were collected .Nucleotide and amino acid sequences were analyzed by using molecular biology software ,and the phylogenetic trees were drawn .Results A total of 72 strains isolated from 2009 to 2014 were closely related to the vaccine strain A/California/07/2009(H1N1) ,the nucleotide variance and amino acid variance between the 72 strains were 0-2 .7% and 0-3 .1% respectively .Compared with the vaccine strain A/California/07/2009(H1N1) ,the nucleotide variance and amino acid sequence variance were 0 .4% -2 .4% and 0 .9% -3 .1% respectively .The amino acids sequence indicated that ,although the variance was increased by years ,the H1N1 viruses were still showed characteristics of low pathogenic influenza viruses .It was also found that there were 9 strains lost their potential glycosylation site at HA protein site 481 in 2009 ,while in 2013 there were 6 strains got new potential glycosylation sites at HA protein site 162 .Conclusion The vaccines (H1N1) recom‐mended by WHO was still protective to people in Chongqing .But as time goes by ,antigen drift may occur in some new antigenic drift strains and the routine monitoring of influenza viruses should be continued .

BACKGROUND:We have designed and manufactured a novel artificial cervical vertebra and intervertebral complex (ACVC) which combines the cervical titanium cage with the artificial cervical disc, and also developed the ACVC with a hydroxyapatite biocoating (ACVC-HA). OBJECTIVE:To evaluate biomechanical properties of the joint system, and the role of HA coating in promoting osseointegration and long-term stability. METHODS:Twenty-four goats were randomly divided into three groups and underwent the anterior C2/3 and C3/4 discectomy, and C3 subtotal corpectomy, fol owed by ACVC implantation (group 1) and ACVC-HA implantation (group 2), and given no intervention (black control group), respectively. group. At 12 weeks after surgery, C1-5 samples were col ected to undergo biomechanical tests and histological staining. RESULTS AND CONCLUSION:Prior to the fatigue test, compared with the blank control group, the range of motion and neural zone of groups 1 and 2 in the directions of flexion-extension and lateral bending showed no significant differences, but the above indicators were significantly increased in the direction of rotation (P<0.05). Additional y, the stiffness in al three directions was significantly lower than that in the blank control group (P<0.05). There were no significant differences in the range of motion and neural zone in al directions between groups 1 and 2. Similar results were found after the fatigue test. The histological staining showed that both two implants had good biocompatibility and abradability, but more new bone formed on the ACVC-HA. These results suggest that ACVC can effectively reconstruct the motor function of the cervical spine after decompression. Furthermore, HA coating can markedly improve bone-implant interface to promote osseointegration.

Objective To investigate the clinical features,karyotype,and the prenatal diagnosis for his sibling of a Chinese patient with rare ring chromosome 20 syndrome induced intractable epilepsy.Methods The clinical data of the patient diagnosed in Peking University People's Hospital were collected.The clinical manifestations,chromosome karyotype were summarized.Results The proband,a boy,started to show intermittent tonic seizures or atypical absence seizures and psychomotor retardation from the age of 11 months.Several anti-epilepsy drugs and globulin had been tried without effect.Common karyotype analysis and epilepsy-related genes analysis revealed no abnormality.However,abnormal karyotype 46,XY,r(20)(p13q13.3) in his peripheral blood lymphocytes was found by high resolution chromosome karyotype analysis with 550 G-banding,and the diagnosis of ring chromosome 20 syndrome,type Ⅱ was confirmed.The mother of the patient underwent amniocentesis at the midterm of the second pregnancy.The cultured amniocytes karyotypes were normal.The second child(a boy) of the family was 1 year old without epilepsy and the psychomotor development was normal.Conclusions Ring chromosome 20 syndrome is a rare human chromosome abnormality.The syndrome is associated with epileptic seizures,behavior disorders and mental retardation.Since karyotype testing is not a routine investigation for the patient with epilepsy,the diagnosis of ring chromosome 20 syndrome is usually delayed or misdiagnosed.The karyotype analysis should be considered for the etiological study of the patients with intractable epilepsy with unknown origin.