Objective To evaluate the effect of fast track surgery nursing on percutaneous lumbar diskectomy. Methods A total of 126 patients were randomly divided into the control group and the experimental group,the control group received traditional nursing plan, the experimental group was given fast track surgery nursing plan. The nursing effect was observed. Results Postoperative anal exhaust time, feeding time, walking time, length of hospital stay ofthe experimental group were (1.61±0.71) days, (2.01±0.71) days, (4.70±2.12) days, (12.72±2.07) days, whichwere significantly shorter than those of the control group, which were (3.37±0.93) days, (2.27±0.63) days, (8.40±3.21) days, (15.81±2.14) days, the difference between two groups were statistically significant (t=4.012-6.068, P<0.05). The incidence of complications was 11.1%(7/63) in the experimental group, which was lowercompared with the control group, 23.8% (15/63), the difference between two groups was statistically significant(χ2=6.639, P < 0.05). Curative effect of the experimental group was 90.4% (57/63), which was significantly higher than that of the control group, 85.7% (54/63), the difference between two groups was not statistically significant (χ2=1.460,P>0.05). The Rdand Morris Questionnaire score of the experimental group was 21.67±3.48, which was higher than that of the control group(14.43 ± 2.01), the difference between two groups was statistically significant(χ2=6.077, P <0.05). Conclusion Fast track surgery nursing can promote the patient's postoperative rehabilitation ,reduce the postoperative complications, shorten the length of hospital stay and improve the quality of life.

Objective To optimize the extraction process of Xuanfei Zhike Mixture. Methods The preparation process was investigated by L9(34) orthogonal design with content of ephedrine hydrochloride, the extraction rate of n-butanol and total extraction as indexes. The main factors influencing the extraction efficiency such as the amount of added water, the time of extraction and times of boiling were investigated. Results The optimum technical condition was as follows:8 times amount of water, extract 2 times and 60 min for each time. Conclusion The result is reliable. It can be used for mass production.

The management for qualification documents of medical instruments is very important work to management department of medical instruments. Because the number of qualification documents of medical instruments is very large and they have an expiry date, it is difficult to manage them. This article discussed how to manage qualification documents of medical instruments, and an information management system that has a function of traceability management has been developed. This information management system standardizes management for qualification documents of medical instruments, and ensures that qualification documents of medical instruments are available and can be traced. Besides, it can reduce the amount of work for medical instruments management.
Documentation ; standards ; Equipment and Supplies ; standards ; Information Systems

BACKGROUND: The key point in the treatment of acute cerebral infarction lies in inproving the blood supply of brain effectively as soon as possible as well as rescue ischemic and half diazonal nerve cells, so as to contract the local of infarction as great as possible.OBJECTIVE: To observe the effect of traditional treatment of cerebral piamatral microcirculation in gerbil with cerebral ischemic reperfusion injury by supplementing qi and activating blood circulation.DESIGN: Contrast animal experiment at random.SETTING: Zhabei Branch of Shanghai Changzheng Hospital.MATERIALS: The experiment was performed in the Institute of Naval Medicine (key laboratory of the whole army). Twenty-two healthy Monglian gerbils of clean grade (six months old) were selected and randomly divided into medicine group and control group with 11 gerbils in each group.METHODS: Animals were routinely anaesthetized and fixed in prone position to open the cranium window in median line and expose the pia mater. The cranium window was protected by being covered with a cotton ball containing artificial cerebrospinal fluid (ACSF) after operation. Gerbils were fixed in dorsal position with an median incision made in the lateral cervical nucleus to isolate and expose bilateral common carotid artery (CCA). The bilateral CCA were occluded by atraumatic micro-bulldog clamp, and the occluded blood flow in the distal end was observed under the microscope. Thirty minutes after occlusion of bilateral CCA, the vascular clamp was unclamped to recover the cerebral blood reperfusion. Gerbils in the medicine group were abdominally injected with 0.4 mL of Huangqi injection (containing 0.8 g of crude drug), 0.3 mL of compound Danggui injection (containing Danggui, Chuanqiong and Honghua, 0.09 g for each)and 0.3 mL of Danshen injection (containing 0.45 g of Shengyao). Animals in the control group were abdominally injected with same-volume of normal saline. The changes of pial microcirculation were quantitatively observed in two groups through cranium window respectively before blockage, at the reperfusion after blockage as well as in 120 minutes after injection by laser microcirculation microscope and the TV video system.MAIN OUTCOME MEASURES: The changes of piamatral microcirculation as well as comparison in venous blood flow velocity in gerbils of each group before and after ischemic reperfusion.RESULTS: All gerbils were involved in the analysis of results with no animal died in the experiment.①When the CCA of animals in the two groups were blocked, obvious contraction of piamatral microcirculation was seen and partial blood vessels were blocked up. Platelet and red blood cells etc.adhered to the arteriolae of grade Ⅰ and veinules below grade Ⅲ with microthrombus formed and large ischemic area appeared. The blood flow rate was obviously slowed down. Moderate and severe aggregations were found in red blood cells, and the white blood cells were significantly increased.There was obvious exudation in the periphery of microvessels. After CCA reperfusion, the arteriolae and veinule were in different thickness, and the thrombus in veinule of grade Ⅰ and Ⅱ formed in the cerebral ischemia were difficult to be removed by blood flow. Red blood cell moderately aggregated, and the number of white blood cells greatly increased. White small thrombus could be seen sometimes, while the exsudation in the periphery of microvessel was not significantly ameliorated. Great changes were found in gerbils of the medicine group after abnormal injection of supplementing qi and activating blood circulation medicine: almost all arteriolae and venulae were opened, and the rate of blood flow was accelerated with the blood flow rate remarkably increased. Deposit in the venulae began to decreased, and the thrombus was gradually dissolved. Red blood cells were moderately aggregated or normal. Blood flow in ischemic spot was improved significantly than that after reperfusion. The exudation in the periphery of microvessels was gradually lessened even dissolved. However,no obvious change was found in gerbils of the control group. ②The blood flow rate of arteriole in the medicine group was 1.04-1.50 mm, which was obviously higher than that in the control group with significant differences (P ＜ 0.5-0.01).③The blood flow rate of veinule in the medicine group was 0.96-1.12 mm/s, which was remarkably higher than that in the control group with marked differences (P ＜ 0.05-0.01).CONCLUSION: The effect on piamatral microcirculation of gerbil with cerebral ischemic reperfusion by supplementing qi and activating blood is exact, which is directly related with accelerated blood flow rate, expanded veinule and arteriolae as well as ameliorated blood-supply of brain.

Objective To analyze the association between mtDNA mutations and photodamagc after ultraviolet B (UVB) irradiation. Methods Primary human skin fibroblasts (HSF) and primary human epi- dermal keratinocytes of adult (HEKa) were irradiated by sub-lethal doses of UVB thrice a day for 4-5 days. Thereafter, genomic DNA was extracted from irradiated cells and conventional PCR was applied to detect the frequency rates of 4977 bp and 3895 bp mtDNA deletion. To quantitatively analyze the mutation levels, SYBR Green real-time PCR method was performed. Results In both cell lines, the frequency rates and relative copy number of deletions increased with the cumulative doses of UVB exposure (P<0.05). The prevalence rate of 3895 bp deletion peaked 53.3% and and relative copy number reached (49.63±4.38)×10-5, showing a more intense response to the accumulation of UVB radiation than 4977 bp deletion. In HSF, the minimum cumu- lative dose of UVB radiation was 150 mJ/cm2 for the induction of 3895 bp deletion, and 200 mJ/cm2 for the induction of 4977 bp deletion. It seemed that mtDNA deletion was more readily to be induced by UVB radia- tion in HSF than in HEKa. Conclusions The development and accumulation of mtDNA mutation are intimately related with cumulated UVB dose received by skin cells, and the 3895 bp deletion is more reliable in moni- toring the photodamage caused by UV than 4977 bp deletion. Therefore, the 3895 bp deletion may serve as a biomarker for the detection of photodamagc in skin cells. HSF appear to have an increased susceptibility to UVB radiation, which results in a higher frequency and level of mtDNA mutations compared with HEKa.

Objective To observe the aging,apoptosis,cell cycle arrest and oxidative stress in human skin fibroblast(HSF)induced by UVB,and to detect the expression profiles of p66Shc,a determinant of oxidative stress response and life span,in this process.Methods HSF cells were exposed to UVB at a subcytotoxic dosage twice a day for three days.The cells without exposure served as control.After another 24-hour culture,SA-β-Gal staining was performed to evaluate the senescence state of the cells,flow cytometry to observe cell apoptosis;cell cycle arrest was detected by serum starvation and flow cytometry:ELISA was applied to detect intracellular levels of superoxide dismutase(SOD)and malondialdehvde(MDA),and Western blotting to analyze the expression of p66Shc protein.Results The percentage of cells positive for SA-β-Gal staining increased from 0 to 98.3% after UVB radiation,which strongly suggested an aging state of HSF cells.The percentage of apoptotic cells increased from 0.96% to 37%.and 80.07% of the HSF cells were arrested in G0/G1 phase following the irradiation.Intracellular SOD activity decreased from(52.35±4.97)ng/g to(7.81±0.68)ng/g(P＜0.01).while intracellular MDA was found to increase from(3.52±0.34)ng/g to(33.91±3.20)ng/g(P＜0.05).The p66Shc protein was found to be weakly expressed in HSF in 24 hours following the exposure to UVB,and a stronger expression was noted 48 hours later.Conclusions HSF cells are induced into a state of senescence associated with oxidative stress after UVB irradiation,which may be applied as an in vitro model in aging research.The expression of p66Shc is increased in HSF during this process,and further studies are needed to explore the relation between p66Shc and oxidative stress as well as cellular aging.

BACKGROUND:The hidden blood loss, accounted for a fairly large proportion of perioperative blood loss in total hip replacement, can seriously affect the recovery of postoperative joint function, but the specific influential factors and mechanisms remain unknown at present. OBJECTIVE:To evaluate the relative influential factors for hidden blood loss after primary total hip arthroplasty by the blood loss condition, and to analyze the association between hidden blood loss and prognosis. METHODS:Clinical data of 110 patients who underwent primary total hip arthroplasty in the Liuzhou Worker’s Hospital between April 2011 and April 2013 were retrospectively analyzed. The hidden blood loss was calculated according to Ward and Gross formula. The effects of patient’s gender, age, body mass index, type of prosthesis, presence of internal diseases, and different causes of a disease on hidden blood loss after arthroplasty were analyzed. The patients were divided into the high blood loss group (≥ 480 mL) and the low blood loss group (<480 mL) according to the hidden blood loss. Al the patients were fol owed up for 1 year. The Harris hip score system was used to assess the recovery of hip joint function between the two groups. The correlation between hidden blood loss and the recovery of joint function was analyzed using Pearson’s correlation analysis RESULTS AND CONCLUSION:The total blood loss of primary total hip arthroplasty was (1 340±367) mL, and the hidden blood loss was (748±324) mL, and the percentage of hidden blood loss was 53.7%. The type of prosthesis, presence of internal diseases, and different causes of a disease were significantly associated with hidden blood loss after total hip arthroplasty (P<0.05). Gender, age, body mass index, and operation time were not significantly associated with hidden blood loss after total hip arthroplasty (P>0.05). The hidden blood loss was correlated with postoperative functional recovery (P=0.046). Results indicated that type of prosthesis, presence of internal diseases, and different causes of a disease are main influential factors for hidden blood loss after total hip arthroplasty. The hidden blood loss has some influence on the recovery of postoperative joint function.

Chemical and Drug Induced Liver Injury ; Dimethylformamide ; Humans ; Occupational Exposure

Objective To study the effect of SKF96365 and NiCl2 on cyclopiazonic acid (CPA) induced intracellular calcium cation concentration ([Ca2+ ]i ) change in rat distal pulmonary arterial smooth muscle cells (PASMC) .Methods The rat distal PASMC were isolated and cultured .The effects of CPA ,SKF96365 and NiCl2 on [Ca2+ ]i in PASMC were tested by fluorescence microscope and InCyte [Ca2+ ]i measurement system .Results PASMC were incubated with Ca2+‐free Krebs solution containing 5μmol/L nifedipine ,10 μmol/L CPA caused a small transient increase in [Ca2+ ]i ;after restoration of extracellular Ca2+ to 2 .5 mmol/L ,10 μmol/L CPA caused marked increases in [Ca2+ ]i in PASMC incubated with Krebs solution containing 5 μmol/L nife‐dipine .Both 50 μmol/L SKF96365 and 500 μmol/L NiCl2 distinctly attenuated the increases in [Ca2+ ]i caused by 10 μmol/L CPA in PASMC .However ,neither 50 μmol/L SKF96365 nor 500 μmol/L NiCl2 affected the increases in [Ca2+ ]i caused by 60 mmol/L KCl in PASMC .Conclusion CPA induced increases in [Ca2+ ]i may related to Ca2+ release from sarcoplasmic reticulum and the in‐flux of Ca2+ through store‐operated Ca2+ channels (SOCC) in rat distal PASMC .Both SKF96365 and NiCl2 could selectively block SOCC and attenuated the influx of Ca2+ through SOCC in PASMC .

OBJECTIVE:To investigate the effect of polyamide on the separation on phenolic acids components by nanofiltra-tion process. METHODS:Phenolic acids components were selected as targets,extracted from the Salvia miltiorrhiza,Lonicera ja-ponica or intermediate preparations (tea polyphenols) with water,and filtered with membranes with different pore sizes. The con-tent changes of components were analyzed by HPLC. RESULTS:Danshensu,protocatechuic aldehyde and caffeic acid could better transmit nanofiltration membranes with 3 different pore sizes;with the decrease of pore size,the rejection rates of neochlorogenic acid,chlorogenic acid,rosmarinci acid,ECG and EGCG grew in different levels. But salvianolic acid B was almost retained by the membrane with low molecular weight except 600-800 Da. CONCLUSIONS:Molecular weight importantly influenced nanofiltra-tion separation on phenolic acid components;nanofiltration has a good prospect in enrichment of phenolic acids components.