Ion beam implantation technique has been applied to many research fields, such as organism improvement, life origin and evolution, and radiobiological effect of the environment, since the mutagenic effects of ion beam had been discovered at the mid of 1980′s. Especially ion beam biotechnology has obtained outstanding result in introducing plant breeding and creating new germplasm resources. Medicinal plant is one of basic materials of traditional Chinese medicinal materials, which has direct relationship with the quality and curative effects of medicines. Therefore, their genetic breeding plays a very important role in the improvement of the yield and quality of traditional Chinese medicinal materials. In this paper, ion beam biotechnology, its obtained results, and present status of research on medicinal plants are expounded. Moreover, the prospects of its application to the medicinal plant breeding are pointed out.

Objective:To discuss the effect of montelukast combined with salmeterol xinafoate and fluticasone propionate on serum IL-6, IL-8 and IL-10 levels in asthma patients. Methods:Totally 80 patients with asthma were randomly divided into the control group (n=42) and the observation group (n=38). The control group was treated with salmeterol xinafoate and fluticasone, and the observa-tion group was treated with the combination of montelukast and salmeterol xinafoate and fluticasone. The course of treatment was 9 months. The clinical efficacy and the changes of IL-6, IL-8 and IL-10 in the two groups were compared before and after the treatment. Results:The clinical total effective rate of the observation group was 92. 11%, which was significantly higher than that of the control group (73. 81%, P<0. 05). The correlation indices (FEV1, FEV1, PEF and FEV1/FVC) of the lung ventilation function in the ob-servation group were significantly higher than those in the control group (P<0. 05). Before and after the treatment, the differences in the levels of serum IL-6, IL-8 and IL-10 were statistically significant (P<0. 05), and the differences between the two groups were also statistically significant (P<0. 05). Conclusion: Montelukast combined with salmeterol and fluticasone propionate can significantly affect on the inflammatory factors in serum of patients with asthma, which should be used and popularized in clinics.

Adult ; Cranial Nerve Neoplasms ; diagnosis ; Facial Nerve ; pathology ; Female ; Glomus Jugulare Tumor ; diagnosis ; Humans ; Neurilemmoma ; diagnosis

Objective To investigate the role of nerve growth factor (NGF) in the pathogenesis of diabetic neuropathy (DNP) and the correlation of NGF level with,sensory nerve conduction velocity (SNCV) and duration of DNP.MethodsThe 41 patients with DNP,35 diabetics without DNP and 33 healthy controls were enrolled.And the serum level of NGF was measured with ELISA,the SNCV of left medial nerve,ulnar nerve,peroneal nerve and tibial nerve were measured too. Then the correlation analysis was completed. ResultsThe serum level of NGF was significantly lower in DNP patients [(665.18±188.32) ng/L] than in healthy controls [(976.44±159.07)ng/L] and in diabetics without DNP [(943.32±167.33) ng/L,F=9.316,P<0.001].The NGF level of DNP patients was positively correlated with SNCV of left medial nerve (r=0.810,P<0.001 ),left peroneal nerve (r=0.760,P<0.001) and duration of DNP (r=0.542,P<0.001).Conclusions The serum level of NGF is lower in DNP patients than in healthy controls.The decrease of the production of NGF may play a role in the pathogenesis of DNP.

Objective To isolate cancer stem cells from human colon cancer cell line CW-2,and observe the biological characteristics.Methods The percentage of CD44＋EpCAM＋ cancer stem cells which were isolated by multi-combination method was evaluated by flow-cytometry.The biological characteristics of the stem cells were analyzed by cell cycle analysis,in vitro invasion assay and in vivo tumorigenicity assay.Results The percentage of CD44＋EpCAM＋ cancer stem cells was 89.57%,and their capabilities of generation,invasion,tumorigenicity were higher than non-cancer stem cells（P 0.05）.Conclusion CD44＋EpCAM＋ cancer stem cells showed low generation,high invasiveness,high tumorigenesis,and they could be isolated by multi-combination.

Objective To understand the clinical characteristics of elderly patients aged 60 years and over in Anhui Province who receive maintenance hemodialysis (MHD).Methods Clinical data of MHD patients in hemodialysis centers of 26 hospitals in Anhui Province from March 31, 2014 to January 1, 2014 were collected.With non-elderly MHD patients (aged over 18 old and under 60) serving as controls, similarities and differences in the primary disease, vascular access, nutritional status, mineral and bone disorders (MBD), and other related aspects in MHD patients were compared.Results The top three original diseases for elderly patients were chronic glomerulonephritis (CGN) (32.8 ％), hypertensive nephrosclerosis (HNS) (27.7 ％) and diabetic nephropathy (DN) (26.2％).The proportion of patients with DN and HNS in the elderly was higher than in the control group (P ＜ 0.001).Vascular access types in elderly MHD patients were arteriovenous fistula (AVF) (89.4 ％), tunneled cuffed catheter (TCC) (8.9 ％), and temporary venous catheter (1.3％).The proportion of patients with AVF was lower (P＜0.001) and the proportion of patients with TCC was higher (P＜0.001) in the elderly group than in the control group.The incidence of anemia was higher in the elderly patients than in the control group (P＜0.05);the proportion of elderly patients with hemoglobin (Hb) levels was 30.3％, in which had no significant difference as compared with the control group (P ＞ 0.05).The incidence of hypoalbuminemia was 21.2％ in elderly patients, which was higher than in the control group.The proportions of elderly MHD patients with normal levels of adjusted serum calcium, serum phosphorus, and intact parathyroid hormone (iPTH) were 52.0％, 27.9％ (higher than in the control group, P＜0.001), and 47.9％, respectively, while there was no difference in adjusted serum calcium and iPTH between the two groups (P＞0.05).The treatment rates for low serum calcium,hyperphosphatemia and secondary hyperparathyroidism (SHPT) in elderly patients were 50.6％,51.6％ and 71.5％, respectively, which had no significant difference as compared with those in the control group (P＞0.05).Conclusions Elderly patients with MHD show distinct characteristics in primary diseases, vascular access types, and nutrition and MBD status, including higher proportions of HNS and DN as their primary diseases.The type of vascular access is still dominated by AVF, and the proportion of TCC is higher.The nutritional status is poor, with a lower incidence of high phosphorus and a higher incidence of low iPTH.Efforts should be made to promote compliance in elderly patients to better control MBD, improve nutritional status and increase safety and effectiveness of treatment.

Objective To evaluate the efficacy and safety of dezocine versus sufentanil for postoperative patient-controlled epidural analgesia (PCEA).Methods PubMed,EMBASE,Cochrane Library,ISI Web of knowledge,Chinese Biomedical Database,Chinese Science-Technology Journal Database,China Journal Full-text Database and Wanfang Database were searched for randomized controlled trials involving the efficacy and safety of dezocine and sufentanil for PCEA from the date of database establishment up to April 2014.Randomized controlled trials met the inclusion criteria were included,and the data were extracted.The quality of the trials was evaluated according to Cochrane Handbook 5.1.0 criteria.Meta-analysis was conducted using RevMan 5.1 software.Results Seven studies involving 760 patients were included in this meta-analysis.The results of meta-analyses showed that there was no significant difference between dezocine group and sufentanil group in VAS scores at 4,8,12,16,24 and 48 h after surgery and in Ramsay sedation scores at 4,12,24 and 48 h after surgery,and the incidence of adverse reactions (postoperative nausea and vomiting,pruritus,urinary retention and somnolence) was significantly lower in dezocine group than in sufentanil group,and there was no significant difference in the incidence of respiratory depression and dizziness between dezocine group and sufentanil group.Conclusion Dezocine provides better efficacy and safety for postoperative PCEA than sufentanil.

Objective To acknowledge the quality of life (QOL) in patients after lung transplantation and to explore related factors. Methods A cross- sectional study design and a convenience sampling were performed in this research. Totally 30 patients after lung transplantation were investigated. The questionnaires which used to explore the quality of life were Short Form 36 Health Survey Questionnaires (SF-36) and Revised Airways Questionnaires 20 (AQ20-R). Related state were surveyed by questionnaires consisted of demographic questionnaires, Self-rating Anxiety Scale (SAS), Self-rating Depression Scale (SDS) and Medical Coping Mode Questionnaires (MCMQ). Statistical analysis was performed by SPSS 20.0 software. Correlation analysis and multivariate analysis were performed using Pearson linear correlation analysis and multi-linear regression. Results The scores among the 8 dimensions of SF-36 were(34.48±16.73)-( 71.63±22.83), lower than those of norms(Z=-9.684--2.817, P<0.05 or 0.01). Somatic pain scored the highest (71.63±22.83), while physiological function scored the lowest (34.48±16.73). The mean score of AQ20-R was 7.93±5.21. The major two problems that manifested QOL were: uncomfortable feeling of lung caused by strong scent, smog or perfume, exhausted feeling after having a cold. The mean scores of SAS and SDS were 44.33±9.33,48.05±9.80, higher than those of norms, which were 33.80 ± 5.90, 41.88 ± 10.57 (t=6.1833, 3.4458, P < 0.01). The scores among the 3 dimensions of MCMQ were 8.93 ± 2.08, 16.10 ± 2.28, 3.63 ± 1.33 and the differences were significant in 3 dimensions compared with those norms, which were 19.48±3.81, 14.44±2.97, 8.81±3.17(t=-27.7281, 3.9885,-21.3878, P<0.01). Conclusions In SF-36, role-physical of patients after lung transplantation was the worst dimension, while bodily pain was the best dimension of QOL. The QOL of patients after lung transplantation were almost worse than normal people. The related factors of QOL in patients after lung transplantation maybe:anxiety, depression and medical coping style.

Objective:To compare the effects of rotational night shifts on the micturition patterns of fe-male nurses.Methods:A total of 58 nurses without lower urinary tract symptoms were recruited,who worked in the Peking University People’s Hospital during January and June in 2014.The nurses aged 20 -43 years were divided into two groups,the night-shift group (n =28)and the non-shift group (n =30).The alcohol or coffee intaking were forbidden.In the night-shift group,nurses had worked on rota-tional shifts for at least 6 months.Their average age was (26.75 ±4.11)years.In the non-shift group, nurses took regular day-time work,whose average age was (27.80 ±5.60)years.A voiding diary was kept for 7 consecutive days at the end of 6 months,starting 2 days before their night duties until 4 days after completion of their night duties.For comparison,the non-shift group with regular shifts completed a 7-day voiding diary.In the 7-day recording voiding diary,the nurses were required to have the normal in-take of liquid about 1 500 -2 000 mL/d.The frequency volume charts of nocturia,the 8-hour interval urine production and frequency were compared between the two groups.Results:Nocturia frequency was increased in the night-shift group [0.5 (0 -2.4)]compared with the non-shift group [0 (0 -2),P =0.02].The volume of nocturia was increased in the night-shift group [125 mL (0 -660 mL)]compared with the non-shift group [0 mL (0 -340 mL),P <0.01].The 8-hour interval indices showed that urine production changed with shift (P <0.01).In the consecutive 7 days,the nocturnal volume of the night-shift group increased on the day after night shift.When the night-shift nurses returned to daytime duty, the volume of urine decreased but nocturnal urine production remained high,and the frequency of noctu-ria also increased significantly (P <0.05).Compared with the 8-hour interval indices,the night-shift group’s voiding volume [(542.35 ±204.66)mL]and voiding frequency (2.24 ±0.69)were more than those of the non-shift group at the afternoon time (from 2 pm to 10 pm).During the 8 h interval night time (from 10 pm to 6 am),the volume of nocturia in the night-shift group [(309.74 ±162.74) mL]was more than that in the non-shift group [(199.38 ±153.98)mL,P =0.01];the frequency of nocturia in the night-shift group (1.31 ±0.52)was increased than that in the non-shift group (0.82 ± 0.55,P <0.01).Conclusion:The rotational shifts affect the micturition patterns of nurses who go through the night shift work,which increases the volume and frequency of the nocturia.

Objective To study the inhibitory effect of panax notoginseng saponins (PNS) on 3-nitrotyrosine (3-NT) formation in brain induced by heme/NO2 -/H2O2 or ONOO - pathways in vitro. Methods According to the two major pathways of 3-NT formation in vivo, the models of protein nitration induced by heme/NaNO2/H2O2 or ONOO-system were established, respectively, in vitro. Bovine serum albumin (BSA)/rat plasma protein or rat brain homogenate protein were utilized as reactive substrates in both systems. Samples were divided into blank-control group, 3-NT group and PNS group (including low-, medium-and high-concentration subgroups). In 3-NT group, samples were exposed to heme/NaNO2/H2O2 or ONOO-system, respectively, at 37℃for 30 min, whereas in PNS group, samples were pre-incubated with PNS (at final concentrations of 50 mg/L, 100 mg/L, and 200 mg/L) at 37℃for 5 min before the nitrating system exposure. The 3-NT level in each group was detected by Western blot assy. Results Compared with the blank-control group, both heme/NaNO2/H2O2 and ONOO-system can induce significant 3-NT generation in BSA/rat plasma protein or rat brain homogenate protein (P<0.05). Compared with model group, PNS pre-treatment markedly inhibited 3-NT expression in BSA/rat plasma protein in a dose-dependent manner (P<0.05), the inhibitory effect of low intervention on the level of 3-NT in rat brain homogenate protein was not significant (P>0.05). Medium- and high-concentrations of PNS pre-treatment markedly inhibited 3-NT accumulation, with maximum effect at the concentration of 200 mg/L (P<0.05). Conclusion Medium- and high-concentrations of PNS can inhibit 3-NT formation in brain tissue mediated by either heme/NO2-/H2O2 or ONOO-pathways, implying that potential neuroprotective action against 3-NT involves pathological conditions, like trauma, stroke, and neurodegenerative diseases.