Objective: To evaluate the efficacy and side effects of rhG-CSF(recombinant human granulocyte colony stimulating factor) in chemotherapy induced neuteropenia.Methods: 63 cases with malignacies confirmed by pathology or cytology were enrolled. All patients were divided into group AN or BA at randomly self-control cross-over test.At the time of 48 hours after chemotherapy,rhG-CSF was given at a dose of 5 g.kg-1 .d-1 for 7 to 14 days in group A. In group B, the patients received chemotherapy alone without rhG-CSF as control.Bolld routine examination was taken every other day from the start of chemother- apy.The change of absolute neutrophil and neukocyte counts were observed.Results:In the trial group,neutrophil count in- creased rapidly with the first peak after 48 born of rhG-CSF injection. The second peak occurred on the tenth day. In the control group,the absolute neuterophil and leukocyte counts decreased gradually,lower than that of the trial group all the time.There is a significant difference between the trial and control groups (P

BACKGROUND:Eucommia ulmoides gum has good thermoplastics, liquidity, bondability and antimicrobial properties. However, the application of Eucommia ulmoides gum as a root canal filing material is rarely reported. OBJECTIVE: To compare the different contents of gas phase nano-silica on mechanical performance of composite material taking the gutta-percha as the matrix, and observe the effect of the root canal filing. METHODS:Four kind of root canal filing materials were prepared through adding barium sulfate (20%), nano-hydroxyapatite (10%) and different contents of gutta-percha and gas phase nano-silica (40% and 15%, 45% and 20%, 50% and 25%, 55% and 30%). PureEucommia ulmoidesgum served as the blank control. The mechanical properties (hardness, tensile strength and rupture elongation rate) of those five materials were detected. Furthermore, four kinds of composite materials, pureEucommia ulmoidesgum and Gutta-Percha Pelets were filed into the fresh extracted premolar root canal by using Obtura II technology. The effect of root canal filing was observed under X-ray and scanning electron microscopy.RESULTS AND CONCLUSION: Along with the increase of the content of gas phase nano-silica, the hardness of Eucommia ulmoides gum composite material increased, tensile strength increased firstly and then decreased, and rupture elongation rate decreased. PureEucommia ulmoides gum was transmitted to the X-ray and no image of filing material was obtained. Four kinds of composite materials were resistant to X-ray, and images showed that al composite materials were equaly filed into the root canal, without cacuole, and were in contact with the root canal inner wal, showing good filing effect. Scanning electron microscopy showed that, fingerlike projections were the longest at the surface of pureEucommia ulmoides gum; as the content of gas phase nano-silica increased, fingerlike projection length reduced at the surface of composite materials.Eucommia ulmoides gum composite materials could be developed as a canal filing material under heat flow condition.

Using scanning electromicroscope, seven species of anopheline mosquito eggs were studied. Among them, the microstructure of exochorion of Anopheles liangshanensis. An. kweiyangensis An. kunmingensis, An. hyrcanus and An. messeae were not reported before. The results showed that ultrastructure of plastron network, frill and tubercles of deck were useful in distinguishing sibling species of anopheline eggs. Microstructure of float had little difference between species. The micropylar area and lobed tubercles presented obvious intraspecific variations, so, it should be careful for using in classification.

The purpose of this study is to investigate the penetration effects and mechanism of N-arginine chitosan (ACS). This novel transdermal enhancer with a mimetic structure of cell-penetration peptides was synthesized by introducing hydrophilic arginine groups to the amino-group on chitosan's side chain. The structure of ACS was confirmed by FT-IR, 1H NMR and element analysis. In addition, attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) was used to study the protein conformation and the water content of stratum corneum, and the result suggested that ACS can change the orderly arrangement of the molecules in the stratum corneum, making the stack structure of keratin become loose. And ACS can increase the water content of the stratum corneurn. Inverted fluorescence microscope and flow cytometry were used to examine penetration effect of ACS on Hacat cell. The result confirmed that the uptake of ACS was enhanced with increased substitution degree of arginine by 4-8 folds compared to chitosan. In vitro penetration studies on three electrical types of drugs were carried out using three model drugs of negatively charged aspirin, positively charged terazosin and neutral drug isosorbide mononitrate by the method of Franz diffusion cells. The results showed that ACS has obviously penetration of the negatively charged drug aspirin, and certain penetration of neutral drug issorbide mononitrate, but inhibition of positively charged terazosin. In vivo imaging technology research results show that the ACS can significantly enhance the fluorescence intensity of morin, which is the auto-fluorescence anionic drug. These obtained results suggested that ACS, as a promising transdermal enhancer, can change the structure of the keratinocytes and analog penetrating peptides promote absorption, but have certain selectivity for the drug.

Objective To explore patients' recognition and demand for enhanced-CT examination-related knowledge. Method A self-designed questionnaire was used to investigate the recognition and demands for the knowledge among 295 patients who receiving enhanced-CT examination for the first time. Results The awareness rate of enhanced-CT examination related knowledge was 19.0%~51.5%and the demand rate was 62.4%~87.1%. The routes by which the patients acquired the knowledge included lecturing by medical staff personnel, reading the handouts and watching video. Conclusions The level of patients'recognition about the enhanced-CT examination related knowledge is low, but their demands for it is high. Therefore, the medical personnel should improve patients'awareness of enhanced-CT examination related knowledge in various ways.

Objective To explore the value of a novel non-peptide renin inhibitor aliskiren on hypertension patients,and analyze the change of bradykinin (BK) and high sensitive C-reactive protein (hs-CRP).MethodsEighty patients with mild to moderate hypertension were selected.Patients were randomized divided into ramipril group,aliskiren 75 mg/d group,aliskiren 150 mg/d group,aliskiren 300 mg/d group with 20 cases each by random digits table method and received the following types of intervention:ramipril 5 mg/d,aliskiren 75 mg/d,aliskiren 150 mg/d and aliskiren 300 mg/d.Enzyme-linked immunosorbent assay method was used for detecting hs-CRP.Radioimmunoassay method was used for detecting BK.Results After treatment,the levels of BK and hs-CRP in aliskiren 75 mg/d group,aliskiren 150 mg/d group and aliskiren 300 mg/d group [(5.06 ± 1.61),(5.05 ± 1.87),(5.27 ± 1.39) μg/L and (0.38 ± 0.11 ),(0.25 ± 0.05),(0.33 ± 0.11 ) mg/L] were significantly lower than those in ramipril group [ (7.12 ± 1.12) μ g/L,(0.49 ± 0.19) mg/L ] (P＜0.05 ).After treatment,the levels of SBP and DBP had no significant difference among the four groups (P＞0.05).Conclusion Aliskiren has a very good effect in decreasing blood pressure and does not cause the levels of BK and hs-CRP increasing.

Objective To observe the effect of inhalation budesonide(pulmicort) in the treatment of cough variant asthma and(CVA) its influence on serum cytokine.Methods 112 children with CVA were randomly divided into the atomization group and control group,each group 56 cases.The atomization group was given pulmicort inhalation therapy,and the control group was given oral long-acting β2 agonist treatment.After 3 months of treatment,the efficacy and serum cytokine levels were compared between the two groups.Results 3 months after the treatment,the effective rate of the atomization group was 91.07％,and significantly higher than that of the control group(75.00％ )( x2 ＝ 5.13,P ＜ 0.05 ) ; The serum interleukin-4,γ-interferon,IgE,eosinophil counts of the atomized group were significantly lower than those of control group ( t =2.10,2.34,27.63,3.13,all P ＜ 0.05 ).Conclusion The effect of inhalation pulmicort in the treatment of cough variant asthma is good,and has good safety.

Objective To assess the treatment of splenic artery aneurysms (SAA) and prognosis.Methods Clinical data of 18 SAA patients treated in our hospital from 1999 to 2011 were retrospectively analyzed. Results There were 18 patients diagnosed as SAA,including 7 males and 11 females.The average age was 53.8 ± 7.3 years.8 patients were asymptomatic found by routine physical examination,7 patients complained upper left abdominal pain,3 cases suffered from aneurysm rupture. Diagnosis was established by three-dimensional computed tomography angiography (3DCTA) in 14,Digital subtraction angiography (DSA) in 3 and magnetic resonance angiography (MRA) in 1 patient.Three patients with ruptured splenic artery aneurysm underwent emergent operations,11 patients underwent elective surgery or interventional therapy.Surgical procedures included aneurysmectomy and splenectomy in 4 patients,distal pancreatectomy in 5 cases; aneurysmectomy and splenic artery ligation in one patient; and aneurysmectomy with splenectomy and colon resection in 1 case.Interventional embolization by coils of the splenic aneurysm in 3 patients.The remaining 4 being asymptomatic and with tumor diameter less than 2 cm were put on a close follow-up.There was no perioperative mortality.Two were lost to follow-up.16 cases were followed-up for averaging 3.2 years. 1 patient died of cerebral hemorrhage after four years. Conclusions Splenic artery aneurysms was a rare disease and with usually occult symptoms,but rupture can leads to abdominal apoplexy.Open surgery and minimally invasive endovascular treatment is effective and offers a good prognosis.

Objective To observe the effect and safety of the endovascular hypothermia through hypothermic intravenous infusion device in the treatment of patients with severe craniocerebral injury compared with conventional surface cooling. Methods A total of 66 cases of patients with severe cranio-cerebral injury were randomly divided into the observation group and the control group with 33 cases in each group according to envelop randomization. The control group received surface cooling, and the observation group was given surface cooling plus endovascular hypothermia through hypothermic intravenous infusion device. The target temperature was 35 ℃maintained for 3-5 days, and natural rewarming was applied at the speed of 0.1-0.5℃/h to 36.0-37.3℃. The time to reach target temperature, the constant stability, the incidence rate and severity of complication such as shiver, arrhythmia, skin injury and agitation were recorded and compared between two groups, as well as the heart rate, breathing rate, pulse rate, blood pressure and Glasgow Coma Scale (GCS) scores after 72 h of treatment. Glasgow Outcome Scale scores 30 days after treatment and nursing workload were also calculated and compared. Results The cooling speed, time to reach target temperature and the ability to maintain at 35℃were (1.3±0.2)℃/h, (2.3±0.2) h and (6.5± 1.8)%in the observation group, respectively, compared with (0.5±0.1)℃/h, (3.6±0.6) h and (11.3±2.2)%in the control group, which had significant differences (t=1.862, 2.112, 2.408,P < 0.05). The occurrence rates of shiver, arrhythmia, skin damage and dysphoria and restlessness in the observation group were 33.33%(11/33), 9.09%(3/33), 6.06%(2/33) and 27.27%(9/33), respectively, which were much lower than those in the control group 84.85%(28/33), 15.15%(5/33), 33.33%(11/33), 54.55%(18/33),χ2=1.764-2.733,P<0.05. The heart rate, breathing rate, pulse rate, systolic blood pressure and GCS score after 72 h of treatment were(68.31 ± 3.73)times/min,(16.60 ± 1.52)times/min,(136.35 ± 3.71)mmHg(1 mmHg=0.133 kPa),(34.61 ± 1.05)℃, (9.91±4.05)points in the observation group, while(58.31±3.62)times/min,(19.81±1.83)times/min,(150.66± 2.70)mmHg,(35.65 ± 1.36)℃,(7.63 ± 3.17)points in the control group, and there were significant differences between two groups(t=2.275-3.035, P < 0.05).Besides, the ice-changing ice and turning-over time in the observation group were both remarkably reduced compared with control group, (14.03±3.11) min/h vs (38.12± 2.70) min/h (t=3.356, P<0.05) , (15.08±3.07) min/h vs (26.16±2.54) min/h ( t=3.021, P<0.05). Patients with good recovery, mild disability, severe disability, death in the observation group were 16, 13, 3 and 1 case, while 6, 11, 9, 7 cases in the control group (χ2=2.351,P < 0.05). Conclusions The endovascular hypothermia through hypothermic intravenous infusion device can rapidly reduce and effectively maintain target temperature, reduce the incidence rate of complication, improve the vital signs and decrease the nursing workload in order to improve neurological outcome in the treatment of patients with severe craniocerebral injury.

Objective To detect the expression of Raf kinase inhibitor protein (RKIP) and NF-κB in renal tissue of diabetic kidney disease (DKD) rats model,and to investigate the effect of rituximab (RTX) on the expression of RKIP in the renal tissue of DKD rats. Methods SD rats were randomly divided into normal group (N),DKD model group (M) and RTX treatment group (D).Blood glucose and 24-hour urine protein of rats were determined in three groups.RKIP protein and NF-κB protein were determined by immunohistochemistry staining. RKIP protein expression was detected by Western blotting. Results Compared with N group,blood glucose,24-hour urine protein and NF-κB expression in M group increased significantly (all P＜ 0.01),the expression of RKIP in M group decreased significantly (P＜0.05).Compared with M group,the expression of RKIP increased significantly in D group (P＜0.05),and 24-hour urine protein and NF-κB expression decreased in D group (all P＜0.05).NF-κB protein expression was negatively correlated with RKIP expression in M group. Conclusions The NF-κB pathway regulated by RKIP plays an important role in the development and pathogenesis of diabetic nephropathy.Rituximab may have a role in treatment of DKD.