OBJECTIVE The two kinds of condition of infection on operation cuts because of different ways of skin preparation. METHODS Divide 530 patients of common surgery into two groups as casual: experiment group and comparison group. For experiment group, the method of using 2 h to clean the skin without shaving is chosen before operation, for comparison, taking the method of using 1 d and shaving. The culture of bacteria from the skin is done respectively before operation sterilization and the infection rate of operation cuts is found out. RESULTS The rate of bacteria and infection rate of operation cuts of experiment group are quite below those of the comparison group. CONCLUSIONS The method of using 2 h without shaving to clean the operation cuts is much better than that of using 1 d and shaving.

Objecfive To investigate the relationship between single nucleotide polymorphism-56(SNP-56)in calpain-10(CAPN-10)gene and polycystic ovary syndrome(PCOS)in Chinese.Methods The genotypes of SNP-56 of CAPN-10 were determined through polymerase chain reaction Tm-shift genotyping method in 638 local women in Shandong Province.Among them,334 were patients with PCOS (PCOS group)and 304 were normal women(control group).The baseline parameters including levels of serum follicle-stimulating hormone(FSH),luteinizing hormone(LH),prolactin(PRL),estradiol(E2),testosterone(T)and lipid,as well as the body mass index(BMI)and waist/hip ratio(WHR)were measured.Glucose tolerance and insulin releasing before and after loading with 75 g of glucose were also assayed.Results(1)The frequencies of two allelotypes or three genotypes did not differ between PCOS women and normal women(P＞0.05).(2)In PCOS group,patients with AA genotype had a significantly higher plasma glucose of 180 minutes OGTT(5.7±2.2)mmol/L[P＜0.01 compared to Gagenotype(4.9±1.2) mmol/L,P＜0.01 compared to GG genotype(4.9±1.4)mmol/L]and serum total cholesterol(TC)level(4.9±1.0)mmol/L[P＜0.05 compared to Gagenotype(4.5±0.9)mmol/L].(3)Compared to PCOS patients with GA+GG genotype(P＜0.05,P＜0.01)or GG genotype(P＜0.05,P＜0.01),there was significantly higher attack rate of diabetes and tumor in the family history of patients with AA genotype.Conclusions These findings suggest that CAPN-10 gene SNP-56 which may not contribute to the genetic susceptibility of PCOS plays a role in glucose and lipid metabolism in Chinese PCOS patients.It may also be correlated with attack rate of diabetes and tumor in the family history of PCOS patients.

Since the outbreak of COVID-19 caused by the 2019-nCoV (SARS-CoV-2), with its high pathogenicity and contagiousness, it has posed a serious threat to global public health security. Up to now, the pathogenesis of 2019-nCoV is unclear, and there is no effective treatment. Vaccine as one of the most effective strategies to prevent virus infection has become a hot area. Based on the current understanding of 2019-nCoV, the development of 2019-nCoV vaccines covers all types: inactivated virus vaccine, recombinant protein vaccine, viral vector-based vaccine, mRNA vaccine, and DNA vaccine, etc. In this review, we focus on the candidate targets of the novel coronavirus, and the types, development status and progress of 2019-nCoV vaccines in order to provide information for further research and prevention.

Objective:To investigate the clinical features and prognosis of septic shock(SS) children with different basic diseases in pediatric intensive care unit (PICU).Methods:The medical records of SS children admitted to PICU at Beijing Children′s Hospital from January 1, 2017 to December 31, 2019 were collected retrospectively.They were grouped according to the presence or absence of basic diseases and types of basic diseases.The clinical characteristics, prognosis and pathogens of SS under different basic diseases were summarized.Results:A total of 218 children with SS were included during the study period, and the overall case fatality rate was 21.6%(47/218). There were 141 cases with basic diseases, accounting for 64.7%(141/218) and 24.1%(34/141) case fatality rate.The mortality rate was highest(37.5%, 17/45) in the malignant hematologic diseases and tumors patients with post-chemotherapy bone marrow suppression, and lowest(16.9%, 13/77) in patients with no underlying diseases.Gram-negative bacterial infection was more common in SS children with underlying diseases(63.1%, 41/65), and was highest in the malignant hematologic diseases and tumors patients with post-chemotherapy bone marrow suppression(80.0%, 20/25). Gram-positive bacteria accounted for the highest proportion in the group without underlying disease(52.1%, 25/48). The incidence of multiple organ dysfunction syndrome(MODS) was the highest(95.6%, 43/45) in the malignant hematologic diseases and tumors patients with post-chemotherapy bone marrow suppression, and the lowest(59.7%, 46/77) in the group without underlying disease.Conclusion:Gram-negative bacteria is the most common pathogen in SS children with underlying diseases, especially in malignant hematologic diseases and tumors patients with post-chemotherapy bone marrow suppression, and with high mortality and incidence of MODS.Gram-positive bacteria is the most common pathogen for those without underlying diseases, with a relatively low mortality and incidence of MODS.

ObjectiveTo assess the safety and efficacy of contrast-enhanced ultrasound (CEUS)-guided percutaneous microwave ablation (MWA) treatment of renal carcinomas.MethodsFifteen patients with 17 renal tumors were retrospectively analyze. The patients’ ages were in the range of 46-80 years (65.2±9.4 years), the tumor diameters were in the range of 1.1-3.9 cm (2.3±0.7 cm) and biopsy pathological results were renal cell carcinoma. All of the tumors were inconspicuous on conventional ultrasound, while conspicuous on contrast enhanced-computed tomography (CT) or magnetic resonance imaging (MRI). Seventeen tumors were ablated under the guidance of CEUS.ResultsAll tumors were successfully visualized on CEUS and MWA was performed under CEUS guidance. The durations of energy application for each tumor were in the range of 5-11 min (mean± SD 7.3±2.2 min). The mean session of CEUS-guided MWA for each tumor was 1.1±0.3. All patients were followed up for 3-49 months (median, 17 months) to observe the therapeutic effects and complications. There was no local tumor progress and major complication. ConclusionCEUS-guided PMWA is a safety, efficient and feasible therapy for patients with RCC which is inconspicuous on conventional US.

Objective:To establish the quality standard for Herba Euphorbia esulae. Methods:A TLC method was used to identify Herba Euphorbia esulae. An HPLC method was used to determine the content of quercetin with the following conditions: an AlltimaTM C18column(150 mm ×4.6 mm,5 μm) was eluted with the mobile phase of acetonitrile-0.4％ phosphoric acid(30 :70), the flow rate was 1. 0 ml·min-1 , the detection wavelength was 360 nm and the column temperature was 35℃. Results:The characteristic spots of samples were the same as those of the standard samples. The linear range of quercetin was 3.194-102.208 μg·ml-1(r=0.9999) and the average recovery was 99. 0％ (RSD=1. 68％, n=6). Conclusion:The method is quick, simple and accurate, which can be used for the quality control of Herba Euphorbia esulae.

Objective: To establish an HPLC-ELSD method for the content determination of rosolic acid in Radix Rubi.Methods: The ELSD-HPLC content determination of rosolic acid was set up using a Vision HT C 18 HL column(250 mm× 4.6 mm ,5 μm), the mobile phase was methanol-0.1% trifluoroacetic acid with a flow rate of 0.8 ml·min-1 , the column temperature was 35℃, the temperature of drift tube heater was 90 ℃ and the gas was with the flow rate of 2.3 L ·min-1 .Results: The linear range of rosolic acid was 0.155-4.346 μg (r=0.999 9).The average recovery was 100.4% with RSD of 1.88% (n =6).Conclusion: The method is simple and accurate.It can be used for the quality control of Radix Rubi.

Objective To get the information about the geriatric syndromes in the elderly with different age and gender so as to provide the basis for management of the geriatric syndromes.Methods A questionnaire survey was used to investigate and analyze the geriatric syndromes in 2 778 older subjects aged 60 years and above from Zhejiang and Jiangsu province.Results Among all 2 778 old adults,(3.4 ± 1.8)geriatric syndromes in average were found.The difference in geriatric syndromes number between different age groups showed a statistical significance(F =145.135,P＜ 0.001),but a significant difference in geriatric syndromes number between male and female group was not found(t=0.817,P=0.414).On the top incidence rate of geriatric syndromes were daily life ability defects 2 199 cases(79.2％),falls 1 828 cases(65.8％),urinary incontinence 1 356 cases(48.8％),sleeping disorder 1 023 cases(36.8 ％),cognitive impairment 908 cases (32.7 ％) and visual impairment 896 cases (32.3 ％).Among above six geriatric syndromes,the incidence of daily life ability defects,falls,urinary incontinence,sleeping disorder and cognitive impairment seemed to increase with ageing (P＜0.001).The incidence of daily life ability defects,falls and urinary incontinence was higher in males than in females (P＜ 0.05).The incidence of sleeping disorder and cognitive impairment was higher in females than in males(P＜0.05).The elderly patients with 3 or more geriatric syndromes exceeded about 66.4 ％.The most common clusters of geriatric syndromes were daily life ability defects combined with falls and urinary incontinence,which seemed to significantly increase along with ageing (x2=202.523,P＜0.001).Conclusions Geriatric syndromes are common in the elderly,medical care workers should pay attention to the management of the geriatric syndromes,and promote the development of the elderly healthcare.

Objective To evaluate low-mechanical-index contrast-enhanced ultrasound (CEUS) in assessing the clinical efficacy and feasibility of percutaneous microwave ablation (MWA) for the treatment of renal cell carcinoma (RCC). Methods From March 2006 to July 2013, a total of 105 RCC patients with 109 lesions, mean size being (3.1 ± 1.3) cm, were treated with ultrasound-guided percutaneous MWA. CEUS results obtained on the third day after MWA were compared with the contrast-enhanced CT/MRI and biopsy findings in the corresponding period. Follow-up examinations with CEUS and CT/MRI were carried out 1, 3 and 6 months after the treatment and once every 6 months thereafter to evaluate the short-term and the long-term therapeutic effectiveness. Results Three days after MWA, CEUS showed that 94 of 109 lesions (86.2%) were completely ablated, and residual tumor tissue was seen in 15 of 109 lesions (13.8%). Among the 15 lesions with residual tumor tissue, 13 (86.7%) were proved by contrast-enhanced CT/MRI and/or biopsy performed in the corresponding period. The sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) of CEUS for the evaluation of the short-term MWA effectiveness were 100%, 97.9%, 98.2%, 86.7% and 100%, respectively. Patients were followed up for 3 - 90 months with a median period of 24.6 months. During the follow - up period, CEUS detected recurrence in 7 patients, and 6 of them were consistent with CT/MRI results. The sensitivity, specificity, accuracy, positive and negative predictive value of CEUS for the evaluation of the long-term MWA effectiveness were 85.7%, 99.0%, 98.2%, 85.7% and 99.0%, respectively. Conclusion For the evaluation of the effectiveness of percutaneous microwave ablation in treating renal cell carcinoma, CEUS is a sensitive, reliable and convenient technique.

The authors analyzed the opportunities and challenges faced by nurses in the time of elderly care with medical support using SWOT analysis, for the purpose of suggestions for the development of nurses to cope with such new scenario. Advantages of the nurses in such a time are as follows: professional nursing care, holistic care ability, and standardized assessment skill. Their disadvantages include: poor team leadership, insufficient business and management skills, and poor motivation for personal development. Their opportunities include: guidance of the national strategy, innovation of " Internet plus", and flexible working hours. Their challenges include: room of improvements for both quantity and quality of nursing personnel, better efficiency for integration and allocation of resources, and better capability to leverage" Smart elderly care". Four suggestions are raised in this regard, i. e., to strengthen the ability for elderly care with medical support, to improve multidisciplinary coordination, to cultivate their entrepreneurship, and to improving the ability of information application.