OBJECTIVE To study the characteristics of articles,citations and authors in Chinese Journal of Nosocomiology(Chin J Nosocomiol).METHODS The data about articles,citations and authors of Chin J Nosocomiol from 2005 to 2006 were collected and analyzed in terms of bibliometric parameters.RESULTS There were 1365 papers published in Chin J Nosocomiol during 2 years and papers with funded projects accounted for 12.3%.The average number of articles per issue was 57,the average publishing cycle of the articles was 8.4 months;87.1% of which shared with co-authors;the cooperation ratio was 3.57.The authors comed from 31 provinces.The papers with citation accounted for 68.9%and 92.3% of all the citations came from journals.The Price's indicator was 82.0%.CONCLUSIONS Chinese Journal of Nosocomiology,an academic journal of high quality,with strong influence,pushes the subject of Nosocomiology in China forward.

OBJECTIVE:To explore the effects of olmesartan medoxomil on blood pressure variability(BPV)and vascular en-dothelial function of patients with mild and moderate essential hypertension. METHODS:Sixty patients with mild and moderate es-sential hypertension were included in study group,and other 60 healthy volunteers were included in control group. Study group was given olmesartan medoxomil 20 mg orally,qd,for 4 weeks,followed by same dose if their SBP≤140 mmHg and DBP<90 mmHg till 12th weekend;those patients with SBP>140 mmHg or DBP≥90 mmHg received double dose till 12th weekend. Aver-age blood pressure,BPV,FMD and NMD of study group were measured before and after treatment as well as the changes in se-rum concentrations of NO and ET,and then compared with control group. RESULTS:Compared with before treatment,average blood pressure,BPV and ET level of study groups were decreased significantly after treatment,serum level of NO was increased significantly,while FMD and NMD were improved significantly,with statistical significance (P<0.05);there was no statistical significance,compared with control group (P>0.05). There were 3 cases of mild diarrhea and 2 cases of mild dry cough,and they relieved after medication withont speical treatment. CONCLUSIONS:Olmesartan medoxomil can play a good effect on de-creasing blood pressure and is tolerable. It can also improve the vascular endothelial function.

Objective To study the relationship between cerebral vascular disease (CVD) and meteorological factors. Methods From 1998 to 2002, 6186 patients with CVD in Qingdao urban were studied. There were 1179 cases of intracerebral hemorrhage (CH), 4821cases of cerebral infarction (CI) and 186 cases of subarachnoid hemorrage (SAH). The relationship between the onset of CVD and meteorological factors including temperature, air pressure, relative humidity, wind velocity was analyzed by circular distribution analysis, Pearson correlation and multiple stepwise regression. Results High incidence of CH was found in winter and the mean angle was in January ((P

0.05) after storing at room temperature less than 4 hours.Its germicidal rate decreased obviously after storing at room temperature more than 8 hours.The(germicidal) efficacy was enhanced with the up of temperature and down of pH,and sharply down with the existence of organic substances.(CONCLUSIONS) Garlic solution can kill the V.parahaemolyticus.Its storing time as well as the temperature,pH,and organic substances can influence the germicidal efficacy.

Objective To investigate the effect of propofol on ketamine-induced cognitive dysfunction and neuronal apoptosis in hippocampus in aged rats. Methods Thirty-two male SD rats aged 18-24 months weighing 380-470 g were randomly divided into 4 groups ( n = 8 each) :control group (group C);propofol group (group P);ketamine group (group K) and propofol + ketamine group (group PK). Propofol 30 mg·kg-1·h-1 or/and ketamine 40 mg· kg-1·h-1 were infused for 2 h once a day for 7 consecutive days. After the last day of drug administration cognitive function was assessed using Morris water maze (escape latency and the number of animals' swimming across the platform). The animals were sncrificed after water naze test and their hippocampi were removed for determination of neuronal apoptosis (by TUNEL) and caspase-3 expression (by immuno-histochemistry) in hippocampal CA1 region. Results There was no significant difference in escape latency and the number of the animals,swimming across the platform, the neuronal apoptotic rate (the number of apoptotic neurons/the number of total neurons) and caspase-3 expression between group C and P. In group K and PK the escape latency was prolonged,the number of animals' swimming across the platform was decreased, neuronal apoptotic rate increased and the caspase-3 expression up-regulated as compared with group C. The ketamine-induced changes were significantly attenuated by coadministration of propofol in group PK. Conclusion Coadministration of propofol can ameliorate ketamine-induced cognitive dysfunction and hippocampal neuronal apoptosis.

Objective:To evaluate the effect of surgical c ro wn-lengthening and restoration procedure in the treatment of short clinical cro wn in anterior tooth. Methods: 28 short clinical crowns of 5 pat ients were lengthened through operation. 6 weeks after operation metal-fused ce ramic prosthesis was individually prepared.Results: Post-operat ion follow-up was performed 6 weeks after treatment,the average length of the c rown of the anterior tooth increased by (2.9?0.6) mm. No complication was obs erved. All the patients were satisfied with the esthetic effects one year after restoration.Conclusion: Surgical crown-lenthening and prosthesi s procedure may be used in the treatment of the short clinical crown.

This article sumarized a practise-based study of the hospital regarding the management of its medical activities.By means of priotizing medical safety in pre-job and on-the-job eduation,and regular trainings in this regard,a systemized medical safety education ssytem is put in place among medical staff of different types and levels.This achieved the purpose of higher awaress of medical safety in medical practice,and downsized medical complaints significantly.

ObjectiveTo discuss the clinical characteristics and therapeutic strategy of acute epidural hematoma(EDH) with mixed density on CT.MethodsThe clinical data of 45 patients with acute EDH with mixed density on the first CT after trauma were analyzed retrospectively.Acute EDH form trauma with mixed density on CT images were compared with those which had homogenesis density on CT images at the same time.ResultsThe opportunity of increasing size of hematoma and the mortality was significantly higher in mixed density hematoma( 82.1％,16.2％ )than that of homogenesis density( 17.7％,2.3％ ) ( all P ＜ 0.01 ).ConclusionEDH with mixed density was a hyperacute EDH.The operation for acute EDH from trauma with mixed density on CT image should be prompt.

OBJECTIVE:To optimize the extraction technology of Compound qima capsules. METHODS:With the blood pres-sure lowering of rats as index,pharmacological efficacy test was used to screen the preparation technology(A was whole herb de-coction;B was Gastrodia elata fine powder mixed with other decocted medical materials). The extraction technology was opti-mized by single factor and orthogonal test using the contents of astragaloside and isoflavone grape glycosides and the quality of sol-id as indexes,with added water,decoction time,decoction times as factors;and the verification test was carried out. RESULTS:Pharmacological efficacy test showed that antihypertensive effect of sample by technology B was superior. The optimal extraction condition of other medical materials of technology B was as follows as 12-fold water per time,decocting for 1.5 h,for 3 times. In verification test,average extraction rates of astragaloside and isoflavone grape glycosides were 64.02% and 51.97%,and average value of the quality of solid was 5.69 g(RSD≤1.92%,n=3). CONCLUSIONS:The optimized extraction technology is stable and feasible.

Objective To analyze the regulation of estrogen receptor α (ERα) on truncated neurokinin-1 receptor (NK1R-Tr), and the influence of this regulation on cell proliferation in estrogen receptor-positive breast cancer cell lines. Methods The chromatin immune coprecipitation (CHIP) was used to observe the transcriptional regulation function of ERαon NK1R-Tr in breast cancer cells. Luciferase reporter gene assay was used to verify whether ERα played a positive regulatory role in the expression of NK1R-Tr. Western blot assay and real-time-PCR were used to detect the expression of ERα and NK1R-Tr in breast cancer cells, MCF-7 and T47D, as well as the expression of NK1R-Tr protein and mRNA level. NK1R-Tr levels were also detected after using estradiol (E2, ERα agonist) and small interfering RNA (knock out ERα). CCK-8 and clone formation experimen were used to detect the proliferation ability of breast cancer cells after knocking out NK1R-Tr with small interfering RNAs. Results CHIP test and Luciferase reporter gene assay proved that ERα can positively regulate the expression of NK1R-Tr via the ERα sequences in the upstream of the NK1R-Tr gene promoter. The expression of NK1R-Tr at both protein level and mRNA level dropped in the estrogen receptor-positive breast cancer cell line MCF-7 upon knocking out ERα. After knocking out NK1R-Tr, the proliferation ability of estrogen receptor-positive breast cancer cells was lower than that of the control group. Conclusion The ERα positively regulates the expression of NK1R-Tr, resulting in the increased cell proliferation in estrogen positive breast cancer cells.