Objective To summarize the nursing experience of 1 case of very low birth weight infant decannulation difficult in PICC. Methods The nursing key points included: full assessment analysis decannulation difficult reason, consult the PICC catheter outpatient health nurses, give magnesium sulfate hydropathic compress, mucopolysaccharide polysulfate cream local besmear outside, sanyrene outside, at the same time give low-molecular-weight heparin calcium injection subcutaneous injection such as anticoagulant active treatment and nursing. Results After 7 days ,the infant left axillary mass dispel, PICC pull out smoothly. Conclusions Decannulation difficult of very low birth weight infant requires full evaluation, multidisciplinary cooperation and specialist consultation, can give targeted personalized nursing safety smooth tube drawing, is worthy of reference for clinic.

AIM:To study the effects and mechanisms of ethanol on chloride channels in poorly differentiated nasopharyngeal carcinoma CNE-2Z cells.METHODS:The effect of ethanol on the cell growth was analyzed by MTT as-say.The technique of whole-cell patch-clamp was used to detect the chloride current .The characteristics of the chloride current were analyzed by using the chloride channel blockers .The siRNA technique was used to analyze the molecular basis of the ethanol-sensitive chloride channels .RESULTS: Under isotonic conditions , the background current was weak and stable.Ethanol at concentrations of 0.17~170 mmol/L activated a chloride current in a concentration-dependent manner (an inverted U-shape), with a maximum effect at the concentration of 17 mmol/L.The currents showed obviously outward rectification and were susceptible to extracellular hypertonicity and the chloride channel blocker , 5-nitro-2-(3-phenylpropyl-amino) benzoic acid ( NPPB) .ClC-3 siRNA obviously decreased the currents activated by ethanol .CONCLUSION:Ex-tracellular ethanol induces chloride currents through activating the ClC-3 chloride channels .

BACKGROUND:Many experiments and clinical studies have reported that venous blood, absorbable colagen sponge and rich fibrin clot, without the use of bone graft material, can al promote new bone formation; therefore, whether only transplanting concentrated growth factor in the maxilary sinus lift could effectively promote bone regeneration? OBJECTIVE: To conduct the maxilary sinus lift with concentrated growth factor as the graft material, and to observe the peri-implant bone level change. METHODS: Totaly 26 patients were involved, including 14 males and 12 females, aged 35-73 years. Maxilary sinus lift was conducted and autologous concentrated growth factor was taken as the graft material. Astra Tech implants were implanted simultaneously. Patients were divided into 6-12 months, 13-18 months and > 18 months groups according to the folow-up time. Patients were divided into≤ 5 mm, 5-7 mm, and≥ 7 mm groups according to the preoperative alveolar bone height. Patients were divided into≤ 2 mm, 2.0-3.0 mm, and≥3 mm groups according to the postoperative maxilary sinus lift height. The survival rate of implants and marginal bone level changes were observed during the folow-up. RESULTS AND CONCLUSION: Totaly 44 implants were implanted, of which 43 implants were considered as successful repair during the 6-18 months of postoperative folow-up. The survival rate of implants was 98%. There were no significant differences in the changes of mesial, distal and middle marginal bone levels between different folow-up time groups. The maxilary sinus lift with transplantation of concentrated growth factor resulted in a good osseointegration within 6-18 months post-operation. In addition, no significant differences were found in the changes of mesial, distal and middle marginal bone levels between different residual alveolar bone height groups, as wel as between different maxilary sinus lift height groups. It showed that the residual alveolar bone height and maxilary sinus lifting height had no significant effect on the peri-implant bone formation. Briefly, these findings demonstrate that the maxilary sinus lift with concentrated growth factor transplantation can result in a high survival rate of implants that are simultaneous implanted, and the alveolar bone around the implant is stable. But the long-term effect needs further observation.

Objective To analyze the clinical characteristics of adult patients with hemophagocytic lymphohistiocytosis (HLH) receiving haploidentical donor hematopoietic stem cell transplantation (HID HSCT).Method We retrospectively reviewed 20 adult patients with HLH from August 2009 to August 2014.The clinical features and outcome were analyzed.Results Conditioning regimens consisted of total body irradiation/etoposide/cyclophosphamide (TBI/VP-16/CTX) and busulfan (Bu)/VP-16/CTX in HLH with anti-thymocyte globulin (ATG) 8 mg/kg.The stem cells were mobilized from donors' peripheral blood.Median time to white blood cell engraftment was 13 (9-27) days.Median time to platelet engraftment was 14 (10-28) days.Mixed chimerism after transplantation developed in 4 patients and no patient presented graft failure.Eight patients developed grade Ⅱ to Ⅲ acute graft-versus-host disease (GVHD),while as chronic GVHD occurred in 9 patients.Among 12 patients with EB virus (EBV) reactivation,2 patients developed post-transplant lymphoproliferative disorder (PTLD),7 were suspected as PTLD and 3 were considered as relapse of primary disease.With a median follow-up of 20 months (range:0.5-108 months) after transplantation,the estimated 2-year overall survival (OS) rate was (60.0 ± 11.0) ％ in all patients.During the follow-up,12 patients survived,8 died including 5 within 100 days after HSCT.Among 5 non-remission patients before HSCT,4 patients died within 100 days after HCT.Conclusions HID HSCT is an effective treatment for adult patients with HLH to achieve remission and long-term survival.High proportion of mixed chimerism has been seen at early stage after transplantation.EBV reactivation and early transplant-related mortality are common.

OBJECTIVETo study the effect of peri-implantitis inflammatory microenvironment on the biological function of jaw bone osteoblasts.

METHODSPrimary mandible osteoblasts from peri-implantitis and normal tissue were isolated and cultured. Third-generation purified osteoblasts were identified and detected. The proliferative activity of osteoblasts was evaluated through MTT assay. Osteocalcin (OCN), Runx2, and collagen I (Col I) mRNA levels were examined by real-time quantitative polymerase chain reaction. OCN protein levels were determined by Western blot.

RESULTS: After 4 d of culture, the proliferative activity of osteoblasts from peri-implantitis became lower than that of normal tissue ( P <0.05). After 7 d of culture, OCN, Runx2, and Col I mRNA expression decreased ( P <0.05). The OCN protein levels also decreased ( P <0.05).

CONCLUSIONPeri-implantitis inflammatory microenvironment can decrease the proliferation and differentiation activity of mandible osteoblasts.

Bone and Bones ; Cell Differentiation ; Humans ; Mandible ; Osteoblasts ; Osteocalcin ; Peri-Implantitis ; RNA, Messenger

Objective To know the current status of smoking behaviors of the newborns' fathers.Methods The researchers gathered the data about their smoking behavior and the influencing factors of the subjects in this investigation, and applied the way of the cluster-sampling and the questionnaire to get the data.In the end, the data was inputted into the computer, and analyzed with SPSS 11.5.Results The rate of smoking of the subjects (namely, the fathers of the newborns in this city) is 90.2% in the past and 51.0% at present.The rate of smoking of the newborns' fathers indoor is 80.0% in the past and 40.1% now.The influencing factors include the subjects' occupation, education level and attitude to smoking, as well as the birth of the newborn and the wife's attitude to smoking.Conclusions The smoking in the newborns' fathers in Chengdu City should not be neglected.It will produce better effects if the measures for individual controls of smoking are taken to intervene the behaviors.

OBJECTIVETo examine the effect of short-term occupational lead exposure on the inflammatory response system in blood among workers.

METHODSA total of 255 lead-exposed workers (length of service ≤1 year) at an electronics factory in Dongguan, China (exposure group), as well as 205 managers without any occupational exposure at another factory (control group), were included in the study. Occupational physical examination was done to get peripheral blood counts. The blood lead levels of workers were determined by atomic absorption spectrometry. The relationship between blood lead and peripheral hemogram was analyzed using SPSS software.

RESULTSThe exposure group had blood lead levels of 0.07∼1.70 µmol/L, falling within the normal range. The leukocyte count, percentage of granulocytes, and absolute value of granulocytes were significantly higher in the exposure group than in the control group, and the results remained unchanged after adjustment for age and sex (P < 0.05). There were no significant differences in red blood cell count and hemoglobin value between the two groups (P > 0.05).

CONCLUSIONShort-term occupational lead exposure may increase the counts of inflammatory cells in blood, but it has little effect on red blood cells and hemoglobin.

Adult ; Blood Cell Count ; China ; Electronics ; Female ; Humans ; Lead ; blood ; Lead Poisoning ; blood ; Male ; Occupational Exposure ; Young Adult

The purpose of this study is to investigate the preparation of hydroxycamptothecine (HCPT)-loaded cubic crystal liquid embolic precursor solution, and evaluate its in vitro embolic efficiency. Phytantriol was used as cubic crystal liquid embolic material, and the optimal formulation was selected according to ternary phase diagram. Polarized light microscopy, differential scanning calorimetry, and small angle X-ray scattering (SAXS) were used to characterize the cubic crystal structure. High performance liquid chromatography and X-ray diffraction analysis were used to investigate the lactone ring of HCPT. In vitro dissolution was preliminary evaluated, and the simulation embolic model was constructed to evaluate the embolic efficiency of precursor solution. Meanwhile, the gelation time and adhesion force were investigated. The results showed that HCPT-loaded precursor solution for embolization had been successfully prepared with low viscosity which was injectable. The precursor solution could transform into Pn3m structure liquid crystal phase gel rapidly when contracting with excess water. The formed HPCT gel remained its lactone form as the same in precursor solution, and expressed the good ability to block the saline flow, and HCPT could keep sustained releasing drug over 30 days. The prepared drug-loaded embolic precursor solution showed a promising potential for vascular embolization and application in clinical treatment of tumor.
Antineoplastic Agents, Phytogenic ; chemistry ; Calorimetry, Differential Scanning ; Camptothecin ; analogs & derivatives ; chemistry ; Delayed-Action Preparations ; chemistry ; Fatty Alcohols ; chemistry ; Liquid Crystals ; Scattering, Small Angle ; Water ; X-Ray Diffraction

Objective To study the detection of Na+/H+exchanger regulatory factor 3(NHERF3) protein expression in renal carcinoma and its correlation with malignant biological behavior. Methods Renal clear cell carcinoma and their adjacent tissues of forty- eight patients were collected. Immunohistochemical method was used to detect the positive expression of NHERF3 protein,and specific expression was detected by Western-blot.Patients were further divided into high NHERF3 group and low NHERF3 group according to median expression of NHERF3 protein,and each group had 24 cases.The expressions of proliferation,invasion and autophagy genes in tumor tissues were detected by fluorescent quantitative PCR.Results The positive rate of NHERF3 protein and the expression of NHERF3 protein in renal carcinoma tissue was significantly lower than that in paracancerous tissue(P<0.05).Expressions of proliferation genes such as k-Ras,c-Myc,TRPC1 mRNA in low NHERF3 group were higher than those in high NHERF3 group:141.74 ± 18.95 vs. 100.00 ± 0.00, 135.88 ± 16.32 vs. 100.00 ± 0.00, 137.21 ± 16.98 vs.100.00 ± 0.00;MIIP,FOXO1 mRNA levels were lower than those in high NHERF3 group: 43.19 ± 5.88 vs. 100.00 ± 0.00, 38.76 ± 4.51 vs. 100.00 ± 0.00; expressions of invasion genes such as CD74, Fascin, MACC1, TRPM8 mRNA were significantly higher than those in high NHERF3 group:152.18 ± 17.64 vs. 100.00 ± 0.00, 146.29 ± 17.63 vs. 100.00 ± 0.00, 139.76 ± 15.82 vs. 100.00 ± 0.00,150.47 ± 17.95 vs.100.00 ± 0.00;expressions of autophagy genes such as Beclin-1,LC3 mRNA were significantly lower than those in high NHERF3 group: 63.21 ± 7.09 vs. 100.00 ± 0.00, 56.28 ± 7.15 vs. 100.00 ± 0.00; EZH2 mRNA level was higher than that in high NHERF3 group:159.47 ± 17.82 vs.100.00 ± 0.00,and there were significant differences(P<0.05).Conclusions The positive rate of NHERF3 protein expression and the amount of protein expression in renal carcinoma tissue is increased, and the specific expression is closely related to tumor proliferation, invasion and activity of autophagy.

Objective To discuss the personality characteristic and personal social attributes of junior middle school students of online violent games addictive disorder (VOGAD).Methods From August to December at 2008,6000 students were randomly drown from 8 junior middle schools in Dalian ,then they were investigated with the self-made internet game survey form and the Chen internet addiction scale (CLAS).149( 2.5% ) internet game addicts were screen out from 6000 students, and were divided into the violence and entertainment game addicted group ( 66 students in per group,and the male is 55, female is 11 ).Average age was ( 14.36 ± 0.81 ) years old.No-play game group 66 students were mach according to the sex and the age.All objects were evaluated with Eysenck personality questionnaire (EPQ) and Minnesota Multiphasic Personality Inventory Abbreviation Form (MMPI-AF).Results There were significant different during the 3 groups in psychoticism (50.60 ± 5.10;50.40 ± 6.30; 46.81 ± 4.62 ), neuroticism ( 51.74 ± 5.70; 49.03 ± 6.85; 49.25 ± 6.09 ) , manifest anxiety (55.29 ±9.58;45.11 ±8.31; 43.24 ±8.32) ,dependence (58.90 ±9.09; 55.97 ±8.63; 54.05 ± 11.39) ,and social responsibility ( 37.47 ± 12.41; 43.25 ± 11.24 ;46.34 ± 14.37 ) (F1-5 = 10.32,3.83,36.17,4.11,8.23; P 1-5 ＜ 0.05 ).Except of the social responsibility (P＞ 0.05 ) ,above results all suggested higher scores in the VOGAD group than other two groups (P1 ＜ 0.05 ).Conclusion The results suggest higher scores in the psychoticism, neuroticism, dependency, manifest anxiety in VOGAD group, and lower Re in online violence game addict students.