Cell senescence is a state of irreversible cell cycle arrest and simultaneously secretes inflammatory factors, chemokines and other senescence-associated secretory phenotype (SASP), which plays an important role in the progression of kidney diseases, metabolic diseases and other diseases. Renal tubular cell (RTC) senescence is a key cellular biological event in the progression of acute kidney injury (AKI). Senescent RTCs not only inhibit the regeneration and repair of AKI, but also release SASP to promote the progression of AKI. Inhibition of RTC senescence, targeted removal of senescent RTCs or promotion of senescent RTCs apoptosis could improve the prognosis of AKI, indicating that these methods have broad application prospects.
【摘要】 目的 验证临床药师对外科预防使用抗菌药物进行干预的效果。 方法 以临床药师督查记录数据为基础，将2010年1-3月238份病历设为非干预组，2010年10—12月240份病历设为干预组，建立评价标准，进行回顾性汇总、分析。 结果 通过干预，抗菌药物使用率从干预前的100%下降为77.08%（χ2=63.633，P=0.000），抗菌药物联用情况减少（χ2=53.712，P=0.000），用药时机和用药疗程有了较大改善，抗菌药物费用下降（t=-5.235，P=0.000），住院医疗费用降低（t’=-12.280，P=0.000），住院天数减少（t=-5.071，P=0.000）。 结论 临床药师通过实施合理用药干预对促进医院安全、有效、经济使用抗菌药物起到了积极作用。【Abstract】 Objective To verify the effect of clinical pharmacists’ intervention in antibiotics used for Type I incision surgical prevention. Methods Based on the supervision and inspection recording data of clinical pharmacists, we arranged 238 medical records in the first quarter of 2010 as non-intervened group and 240 medical records in the fourth quarter of 2010 as intervened group, and then established evaluation criteria and conducted a retrospective study for analysis. Results Through intervention, the rate of using antibiotics decreased from the previous 100% to 77.08% (χ2=63.633, P=0.000), the use of combined antibiotics also decreased (χ2=53.712, P=0.000), the time of course of using antibiotics improved, medical expenses of the antibiotics were reduced (t=-5.235, P=0.000), hospitalization cost decreased (t=-12.280, P=0.000), and hospital stay was shortened (t=-5.071, P=0.000). Conclusion Clinical pharmacists’ intervention in rational use of drugs play a positive role in contribution to a safe, effective and economical application of antibiotics.
ObjectiveTo review the development of cell sheet engineering technology in engineering vascularized tissue. MethodsThe literature about cell sheet engineering technology and engineering vascularized tissue was reviewed, analyzed, and summarized. ResultsAlthough there are many methods to engineer vascularized tissue, cell sheet engineering technology provides a promising potential to develop a vascularized tissue. Recently, cell sheet engineering technology has become a hot topic in engineering vascularized tissue. Co-culturing endothelial cells on a cell sheet, endothelial cells are able to form three-dimensional prevascularized networks and microvascular cavities in the cell sheet, which facilitate the formation of functional vascular networks in the transplanted tissue. ConclusionCell sheet engineering technology is a promising strategy to engineer vascularized tissue, which is still being studied to explore more potential.
Objective Platelet-rich plasma (PRP) contains high concentrations of platelets and leucocytes, which play a key role in antimicrobial host defense system. To evaluate the antimicrobial efficacy of autologous PRP in vitro and in vivo and to explore the mechanism of action so as to provide the experimental basis for the prevention and treatment of bone infection. Methods PRP was prepared with the method of two centrifugation from 15 health volunteers. Platelet-leukocytegel (PLG) was obtained after activation of PRP with bovine thrombin. Next, PLG was incubated with Staphylococcus aureus (1 × 106 cfu/mL) in vitro compared with PRP, platelet-poor plasma (PPP) and PBS. Samples were taken out after 2, 4, 6, 8, 12, and 24 hours for bacterial culture and colony count. Thirty-six New Zealand adult rabbits, weighing (2.85 ± 0.11) kg, were divided into 4 groups: PLG (n=10), antibiotic (n=10), infection (n=10), and PBS (n=6) groups. The osteomyel itis models were made by injecting 0.1 mL Staphylococcus aureus suspension (1 × 106 cfu/mL) into the tibial canal in PLG group, antibiotic group, and infection group; equal volumes of PBS was injected in PBS group as a control. Autologous PLG was injected immediately after operation in PLG group. Cefazol in (30 mg/kg) was injected through the auricular vein from 1 hour before operation to 72 hours after operation in antibiotic group, once per 8 hours. No treatment was given in infection and PBS groups. The efficacy of PLG for osteomyel itis prophylaxis was evaluated by microbiological, X-ray and histological observation within 28 days. Results The contents of leucocyte and platelet of PRP were 6.2 times and 5.5 times of whole blood, showing signficant differences ((P lt; 0.05); the contents of leucocyte and platelet of PPP were significantly lower than those of whole blood and PRP ((P lt; 0.05). In vitro test showed that PLG had the most obvious bacteriostasis effect. The bacterial count reached a minimum value at 4 hours after incubation in PLG and at 6 hours after incubation in PRP. PPP had slow and no obvious bacteriostasis effect and PBS had no bacteriostasis effect. At 2, 4, 6, 8, 12, and 24 hours of incubation, the bacterial count reduced significantly when compared PLG with PRP and PPP (P lt; 0.05), when compared PRP with PPP (P lt; 0.05). In PLG group and antibiotic group, 1 rabbit died, respectively; 34 rabbits survived to the end of the experiment. There was no significant difference (P gt; 0.05) in temperature, body weight, erythrocyte sedimentation rate and content of leucocyte between 28 days after operation andbefore operation in 4 groups. After 28 days, the X-ray scores were 2.78 ± 1.39, 1.55 ± 1.48, 4.17 ± 1.25, and 0 in PLG, antibiotic,infection, and PBS groups, respectively, which was significantly higher in infection group than in other 3 groups ((P lt; 0.05). Also, the histological scores were 5.89 ± 3.92, 3.00 ± 2.31, 10.33 ± 4.03, and 0, respectively, which was significantly higher in infection group than in other 3 groups (P lt; 0.05), and was significantly lower in antibiotic group than in PLG group ((P lt; 0.05). The results of bacterial culture showed that the infection rates of PLG group (44.4%) and antibiotic group (20.0%) were significantly lower ((P lt; 0.05) than that of infection group (88.9%). The quantitative analysis of bacteria showed that the number of bacteria was signifcantly lower ((P lt; 0.05) in PLG and antibiotic groups than in infection group. Conclusion PRP forms into PLG after activating, it can inhibit Staphylococcus aureus reproduction in vitro and can effectively prevent bone infection in vivo.
目的 分析都江堰市人民医院药品不良反应（ADR）的发生情况及引发ADR的相关因素，为临床合理用药及正确评价ADR的发生提供参考。 方法 对医院2009年1月－2011年12月收集上报至全国ADR监测网络的168例ADR报告，进行回顾性分类与统计分析。 结果 ADR报告例数最多的为临床科室，男女病例数比为0.87∶1，静脉给药途径引发的ADR最多（占77.98%）；抗感染药物的ADR发生率最高（占61.90%）；皮肤及其附件损害最常见占（27.98%）。 结论 抗感染药物和中药注射剂是ADR监测的重点药物，应加强ADR监测及相关知识的宣传，提高合理用药水平，减少药源性疾病的发生。
Objective To explore the clinical characteristics and management of ovarian tumor complicated by pregnancy and its influence on the pregnancy outcome, so as to provide diagnostic and therapeutic experiences. Methods A total of 248 cases were surgically and pathologically diagnosed as ovarian tumor complicated by pregnancy in The 202 Military Hospital from January, 2003 to December, 2009, and their clinical data were analyzed retrospectively. Results The incidence rate of ovarian tumor complicated by pregnancy was 0.49%. Among total 248 cases, 131 (52.82%) were benign tumors, of which 22.18% were ovarian mature teratomas; 113 (45.57%) were tumourlike lesions, of which most were ovarian chocolatecyst and lutealcyst, and 4 (1.61%) were malignant tumors. There were 212 cases treated by tumorectomy or salpingo-oophorectomy, and 3 of 4 cases with malignant tumors took postoperative chemotherapy. A total of 192 cases were diagnosed by regular antenatal care and ultrasound examination, accounting for 77.42% of the total sample size found during pregnancy. Among 14 cases receiving emergency operations, 9 were complicated by torsion, and the other 5 were by rupture. There were 67 cases receiving operation from the 14th to 18th gestational week, and 57 cases had full-time pregnancy. Conclusion Ultrasonography and pelvioscopy are of principal importance in the diagnosis and detection of ovarian tumor complicated by pregnancy which should be treated by tumorectomy, and suitable surgery intervention during second trimester is safe.
ObjectiveTo study the prevalence of age-related macular degeneration (AMD) in the population aged 50 and over in Qidong County of Jangsu Province. Methods3644 individuals from 4 villages were randomly selected by clustering sampling method, according to the household registration information and door to door visits. Visual acuity was measured by modified Bailey-Lovie E logMAR chart. The examination of eyelids, cornea, lens and fundus were also carried out. The diagnosis of AMD was made according to the clinical hierarchy system by Age-Related Eye Diseases Study. χ2 test was used to analyze the prevalence of AMD and its related factors. ResultsAmong 3644 selected individuals, 2985 individuals received examination with a participating rate of 81.92%. In total 97 patients (136 eyes) had AMD with a prevalence rate of 3.25%. Among them, 71 patients (105 eyes) had early stage of AMD (2.38%); 26 patients (31 eyes) had late stage of AMD (0.87%). In these late stage patients, there were 9 patients (13 eyes) of exudative lesions (0.30%). There were 32 male (3.11%) and 65 female (3.32%) patients. There was no statistically significant difference between male and female prevalence (χ2=0.29, P > 0.05). Correlation analysis results showed that the long-term smoking (χ2=15.19) and heart cerebrovascular disease (χ2=81.50) was associated with AMD (P < 0.05). ConclusionsThe prevalence rate of AMD is 3.25% in the residents aged 50 and above in the rural area of Qidong County, Jangsu Province. Long-term smoking, high blood pressure and cardiovascular disease are the risk factors of AMD.