OBJECTIVE: To prepare paclitaxel microemulsion using film dispersion method and to evaluate the physicochemical property of it.METHEDS: The prescription was optimized with appearance,particle size and stability of paclitaxel microemulsion as indexes.The pH,appearance,morphology,particle size,stability of paclitaxel microemulsion were detected.The drug-loading rate and encapsulation efficiency were determined by HPLC.RESULTS: The paclitaxel microemulsion was translucent diluted-yellow solution with pH of 4.83 and stable property.Paclitaxel microemulsion droplet in electron microscopy consists of small spherical drops and Gauss distribution.The appearance,pH,drug-loading rate and particle size of microemulsion were stable after diluting with sodium chloride injection and glucose injection.The encapsulated efficiency and drug-loading rate of paclitaxel microemulsion were 97.03% and 3.032 g?L-1.CONCLUSION: The film dispersion method could be applied for the preparation of paclitaxel microemulsion which stable.It could not only solve the problem of its poor solubility but also relief remarkable hypersensitivity.

With the improvement of MRI equipment performance and the usage of multi-channel high sensitivity coil, the application of the diffusion-weighted imaging (DWI) in the abdomen has been achieved. And the DWI has great significance in the diagnosis and differential diagnosis of renal tumors. In this article we reviewed advantages and limitations of magnetic resonance diffusion weighted imaging technology diagnosis in renal cell carcinoma, and also reviewed the latest research progress of DWI technology in the use of kidney.

While only in minute quantities in the body, trace elements are crucial co-factors and regulators of normal metabolism.Commonly tested elements include calcium, magnesium, iron, zinc, and copper.Imbalance or deficiencies in trace elements can cause growth retardation, malnutrition, immune malfunction and other abnormalities in children.Because these elements are in trace amounts, sensitivity and reproducibility of detection methods are of paramount importance.Different methods for the same element can yield different reference intervals, which, in order to be applied in the clinic, would have to be independently established by individual laboratories.Clearly defined indications and good quality control to ensure accuracy and sensitivity are necessary for the measurement of trace elements to provide objective reference for clinical diagnosis.

OBJECTIVE: To study the active fractions from Antipyretic analgesics powder.METHODS:The active fractions were extracted from Antipyretic analgesics powder by supercritical-CO2 fluid extraction technique,separated and purified by molecular distillation(MD) technique.The active fractions were selected with the analgesic effect as index.RESULTS: The active fractions obtained showed remarkable analgesic effect.CONCLUSION: The result serves as a theoretic basis for the development of the active fractions-based new drugs.

As a new emerging infectious virus, 2019 novel coronavirus (2019-nCoV) has been widely popular all over the world since the beginning of 2020. As a special group, children have similarities and differences with adults for coronavirus disease 2019 (COVID-19) in the epidemiology, diagnosis and treatment, curative effect monitoring, prognosis, virus testing methodology, infection and inflammation markers, etc. This paper mainly reviews the characteristics of COVID-19 in children from two aspects: the epidemiological and pathogenic detection characteristics, so as to provide some basis for its diagnosis and treatment.

Objective To explore the performance of serum AFP-L3 and PIVKA-Ⅱ in differential diagnosis of benign and malignant liver disease in high risk population.Methods The serum levels of AFP-L3 and PIVKA-Ⅱ in 48 patients with primary hepatic carcinoma,43 patients with cirrhosis and 81 patients with chronic hepatitis B were analyzed retrospectively.Results There was no statistically different significance among the median levels of serum AFP in primary hepatic carcinoma patients,cirrhosis patients and chronic hepatitis B patients (x2=4.014,P=0.134).Both median level of AFP-L3 and PIVKA-Ⅱ in primary hepatic carcinoma patients were higher than cirrhosis patients and chronic hepatitis B patients (x2 =33.93,52.33,both of P values were below 0.001).The specificity (92.74％) of AFP-L3 and the sensitivity (79.17％) of PIVKA-Ⅱ were all higher.The accuracy (84.88％) of combined detection in series was the highest,with its 47.92％ of sensitivity and 99.19％ of specificity.Conclusion Combined detection PIVKA-Ⅱ and AFP-L3 series will help to differential diagnosis of benign and malignant liver disease in high risk population.

Objective To construct a basic competency framework for advanced practice nurses.Methods A primary index system was formed through literature review and expert consultation,the weight of each index was determined by hierarchy analysis.Results The expert authority coefficient was 0.857,Cronbrach alpha of the total system was 0.937.The index system consisted of 5 first-level items,11 second-level items and 46 third-level items.Conclusions The 62-item competency framework for APN is reliable and valid,which can provide quantified standards for selecting,training and evaluating advanced practice nurses.

Objective To learn the status of core competency of cardiovascular specialist nurses in military hospitals in order to supply evidence to establish contrapuntal training protocol.MethodsThe Competency Inventory for Registered Nurse Scale (by LIU Ming) was distributed to investigate the core competency of 156 registered nurses.The data underwent analysis.Results The overall score of core competency level was (3.17±0.69),the highest mean score was the dimension of legal and ethical practice,and the lowest mean score was the dimension of critical thinking and nursing research apititude.the core competency varied with professional title and staffing.Evident difference existed in different dimensions and total scores.Conclusions The overall core competency is at the upper middle level for cardiovascular specialist nurses.They are competent enough to provide healthcare.The cultivation of nurses' critical thinking and nursing research ability should be strengthened.The nursing administrators should carry out pertinent training for nurses according to their different professional levels.

Objective To summarize the meticulous nursing experience of indwelling urinary catheter between the children with hypospadias during perioperative. Methods 317 cases of indwelling urethral only in the silicone Foley tube, and without other urinary diversion with hypospadias were retrospectively analyzed, summarized the fine points of nursing, including preoperative children with comprehensive risk assessment, standardized preoperative skin preparation and postoperative protective constraint, effective properly fixed catheter keep the urine drainage unobstructed, close observation of urine drainage characteristics, maintain urine collection system tightness, maintain perineal skin clean and improved extubation nursing method, and do a good job after extubation nursing. Results 266 cases were cured with a cure rate of 83.9%(266/317);the incidence of urine leakage in 42 cases, the incidence rate was 13.2%(42/317); 7 cases of urethral stenosis, the incidence rate was 2.2%(7/317); 2 cases of urethral closing, the incidence was 0.6% (2/317), none of the patients had accidental extubation. Conclusions The meticulous nursing has a better effect in hypospadias patients during the perioperative period and it can reduce the incidence of postoperative complications;shorten the time of hospitalization and alleviate the suffering of children;improve the quality of nursing service, which is worthy of clinical application.

Objective To investigate the MRI manifestations of cerebral glioma involving corpus callosum,and to enhance the ability to diagnosis and differential diagnosis.Methods Thirty four cases of cerebral glioma involving corpus callosum under went plain and Gd DTPA enhanced MR scans.The MRi findings of these gliomas were compared with operation and pathology.Results Gerebral gliomas involving corpus callosum presented as long T 1 and long T 2 homogeneous or inhomogeneous signal intensity and obvious mass effect.The MRI findings of Gd DTPA enhanced MR scans were obvious enhancement,slight enhancement or no enhancement accouding to different pathological kinds of gliomas."Butterfly signs" and "semi butterfly signs" were the reflections when gliomas of corpus callosum invaded two sides or one side of cerebral hemisphere.These two signs were significant markings in the diagnosis of cerebral gliomas in corpus callosum region.Conclusions Cerebral gliomas involving corpus callosum are intracranial tumors with special location.MRI has significant clinical value in the diagnosis and differential diagnosis of this kinds of tumour.