OBJECTIVE To discuss the best scheme for fungemia detection by analyzing and comparing the ability and performance characteristics of the BACTEC 9120 automated blood culture system and 4 kinds of blood culture bottles in the detection of simulated fungemia.METHODS Simulated blood culture was produced using 65 fungi isolates from clinical specimens and BACTEC Plus Aerobic/F,Plus Anaerobic/F,Peds Plus/F and Myco/F Lytic blood culture bottles and detected by BACTEC 9120 automated blood culture system.The final inoculum densities were 1-5 CFU/ml blood.The(time to detection TTD) of simulated blood culture with different concentrations of suspension produced using 2 kinds of standard strains and 4 kinds of blood culture bottles was compared.RESULTS From the 260 bottles in this study 216 had growth detected by the BACTEC 9120 blood culture system.The positive rates of BACTEC Plus Aerobic/F and Anaerobic/F,which were 90.77%and 41.54%,respectively,were significantly(P

Objective To explore the effect of TIP30 gene on the growth inhibition of renal carcinoma cell line 786-0 and look for a potential therapeutic target for renal carcinoma.Methods TIP30 gene was amplified by reverse transcription-polymerase chain reaction(RT-PCR).A eukaryotic expression vector pcDNA3.1-TIP30 was constructed and transfected into 786-0 cells;pcDNA3.1(+)was also transfected as control.After transfection,the expression of TIP30 in 786-0 cells was detected by RT-PCR and Western blotting.The changes of cell proliferation and cell cycle were observed by MTT and FCM assay.Results The mRNA and protein expressions of TIP30 gene in pcDNA3.1-TIP30-transfected 786-0 cells were significantly increased than those in untreated and pcDNA3.1(+)-transfected cells(P0.05).The inhibitory rate of pcDNA3.1-TIP30-transfected 786-0 cells was significantly higher than those in untreated and pcDNA3.1(+)-transfected cells(P

Objective To construct a plasmid expression vector coding for the short hairpin RNA(shRNA) targeting Twist mRNA.Methods Two plasmid expression vectors coding for shRNA targeting 777 and 845 of Twist gene sequence and a control vector containing random DNA fragment were constructed.The recombinant plasmids were identified by PCR,and then transfected separately into bladder cancer cell line T24.The Twist gene silencing effect was detected by RT-PCR and Western blotting.Results The expected band of 400 bp was amplified from the plasmids coding for shRNA by PCR.By DNA sequencing,it was the same with the insertion element as with the shRNA of synthetic.Transfection of T24 cells expressing Twist gene with the shRNA plasmids resulted in inhibition of Twist mRNA and protein expressions by 90% and 86%,respectively.The shRNA1 had the most obvious effect in Two types of plasmids interference.Conclusion The plasmid expression vectors coding for shRNA targeting Twist mRNA have been constructed successfully,of which pGenesil-shRNA1 most effectively silences Twist gene in T24 cells.

Objective The incidence of cardiovascular and cerebrovascular diseases in postmenopausal women with type 2 diabetes is grim.The study was designed to explore the effect of ω-3 polyunsaturated fatty acids (PUFA) on endothelial function in postmenopausal women with type 2 diabetes. Methods 50 patients admitted to Dingli Medical College of Wenzhou Medical Univer-sity from March 2014 to October 2014 were divided into group A and Group B by random number table .Cross-design of two stages ( I, II) was applied in the investigation .At stage I(3 months ahead of the experiment ), Group A took oral ω-3 PUFA while Group B took placebo .At stage II ( 3 months after the experiment ) , Group B was given oral ω-3 PUFA, while Group A was given placebo .T1 and T3 time was the beginning of the stage I and stage II experiment , while T2 and T4 time was the end of stage I and stage II experiment .At the beginning and end of each stage , detection was made on LDL-C, TG, IL-6, plasminogen activator inhibitor-1 (PAI-1) and endothelium-dependent flow-mediated vasodilation (FMD). Results After the intervention on Group A at stage I , FDM at T2 time was significantly increased compared with that at T 1 time([7.23 ±3.28]% vs [3.62 ±2.13]%, P<0.05), while all the other indexes at T2 time decreased significantly in comparison with T1 time: LDL-C ([2.85 ±0.47]mmol/L vs [3.36 ±0.57] mmol/L), TG([2.41 ±1.06]mmol/L vs [2.96 ±1.12] mmol/L), IL-6([2.83 ± 0.30]ng/L vs [3.42 ±0.32]ng/L), PAI-1 ([7.23 ±3.28]ng/L vs [3.62 ±2.13]ng/L) (P<0.05).After receiving ω-3 PUFA intervention on Group B at stage II , FDM at T4 time was significantly increased compared with that at T 3 time([6.88 ±2.06]% vs [3.60 ±2.18]%, P<0.05), while all the other indexes at T4 time decreased significantly in comparison with T3 time: LDL-C ([3.26 ±0.77]mmol/L vs [3.63 ±0.73] mmol/L), TG([2.28 ±0.94]mmol/L vs [2.77 ±1.25] mmol/L), IL-6([2.91 ± 0.48]ng/L vs [3.30 ±0.52]ng/L), PAI-1 ([45.7 ±24.4]ng/L vs [56.3 ±24.4]ng/L) (P<0.05).Two-period crossover design analysis of variance showed that there was significant difference effect on LDL -C(F=2.754, P=0.019), TG(F=3.115, P=0.011), IL-6(F=1.825, P=0.032), PAI-1(F=2.324, P=0.023) and FMD(F=3.784, P=0.006)between ω-3 PUFA and placebo . Conclusion ω-3 PUFA can improve endothelial function in postmenopausal women with type 2 diabetes , which is of great significance for the primary prevention of cardiovascular disease .

Objective The present study was designed to investigate the risk factors affecting bleeding during percutaneous nephrolithotomy. Methods The records of 218 patients with percutaneous nephrolithotomy procedure by a single surgeon were retrospectively reviewed.The mean age was 48 years ( range,19 -70).One hundred and forty six patients had staghore stones,and 7 patients had previous open or percutaneous nephrolithotomy histories.Forty-one patients had concomitant diabetes mellitus,and 89 cases had hypertension.The following factors including age,sex,BMI,diabetes status,hypertension status,stone type,calix of puncture,previous open or percutaneous nephrolithotomy history,number of accesses,size of accesses,operative time,and surgeon experience were analyzed.Univariate analysis and multivariate step regression analysis were used for statistical assessment. Results 207 procedures were successfully performed,and 11 patients failed because of difficulty to establish the accesses.Single-tract was used in 176 cases and multiple-tract was used in 31 cases.163 cases were performed via a 18 F access and 44 cases via a 24 F access.The mean operative time was 78.4 min.The overall blood transfusion rate was 7.7％,and stone type ( P =0.034),diabetes ( P =0.030),number of accesses ( P =0.019 ),size of accesses ( P =0.008) and operative time (P =0.001 ) were the risk factors affecting blood transfusion requirement.The average hemoglobin (Hb) drop after percutaneous nephrolithotomy procedures was 11.2 g/L,and stone type ( P ＜ 0.001 ),diabetes ( P =0.015 ),number of accesses ( P =0.016),size of accesses ( P ＜ 0.001 ) and operative time ( P ＜ 0.001 ) were the risk factors affecting Hb drop.The following covariates including Hb drop:age,sex,BMI,previous open or percutaneous nephrolithotomy history,hypertension status,calix of puncture and surgeon experience were not risk factors affecting blood transfusion requirement and Hb drop.Multivariate stepwise regression analysis showed that diabetes ( OR =1.75 ),stone type ( OR =1.92),number of accesses ( OR =2.45 ),size of accesses ( OR =1.32) and operative time ( OR =1.66) significantly increased risk of bleeding. Conclusions Stone type,diabetes,number of accesses,size of accesses and operative time were the risk factors affecting blood loss during percutaneous nephrolithotomy.

OBJECTIVETo analyze the clinical features and treatment of skull base osteosarcoma.

METHODSThe clinical data of 18 patients with skull base osteosarcoma, who were admitted to the CAMS Cancer Hospital from January 2005 to November 2013, were retrospectively analyzed. The patients were followed up by telephone, outpatient review and other means. Fifteen patients were followed up, 4 cases received surgery only, and 11 cases received surgery with adjuvant chemotherapy and/or radiotherapy. Kaplan-Meier survival curve analysis was used to analyze the clinical data and Log rank method was used for verification.

RESULTSNine patients died among the 15 patients who were followed up for 3-103 months (mean 25.0 months): seven patients died of local recurrence, and two patients died of distant metastasis, and six patients were still alive. Four patients received surgery only, with a median survival time of 25.0 months, and 11 patients received comprehensive treatment, with a median survival time of 47.0 months (P = 0.02). Five patients received sub-total resection, with a mean survival time of 47.0 months, and 10 patients received total resection, with a mean survival time of 45.0 months (P = 0.37). The 1- and 2-year recurrence rates were 46.6% and 68.9%, respectively. The overall 1-, 2-, 3- and 5-year survival rates were 82.4%, 61.8%, 36.0% and 36.0%, respectively, with a median survival time of 30.0 months.

CONCLUSIONSTo compare the long bone and head and neck osteosarcoma with skull base osteosarcoma, the skull base osteosarcoma has a lower total resection rate, a higher recurrence rate, and a poorer prognosis. Radical surgery and comprehensive treatment are appropriate for skull base osteosarcoma.

Bone Neoplasms ; diagnosis ; pathology ; therapy ; Chemotherapy, Adjuvant ; Combined Modality Therapy ; Humans ; Kaplan-Meier Estimate ; Neoplasm Recurrence, Local ; Osteosarcoma ; diagnosis ; pathology ; therapy ; Retrospective Studies ; Skull Base ; pathology ; Survival Rate

Objective:To analyze the correlation between nutritional status and frailty and sarcopenia in geriatric inpatients (GIPs) planning to receive major hepatopancreatobiliary (HPB) surgery.Methods:From December, 2020 to September, 2022, GIPs who were planning to receive major HPB surgery were recruited. Nutritional assessment was performed using nutritional risk screening 2002 (NRS-2002) and Global Leadership Initiative on Malnutrition (GLIM) criteria. Frailty and sarcopenia assessment were performed using Fried frailty phenotype (FFP) and Asian Working Group for Sarcopenia (AWGS) 2019 consensus on sarcopenia diagnosis and treatment. The prevalence and concurrence of malnutrition, frailty and sarcopenia were investigated, and the correlation between nutritional status and frailty and sarcopenia was analyzed.Results:A total of 144 participants at the mean age of (70.10±7.44) years were included. The prevalence of nutritional risk, malnutrition, and severe malnutrition were 73.6% ( n ?=?106), 68.1% ( n ?=?98), and 34.7% ( n ?=?50) respectively. The prevalence of frailty was 20.8% ( n ?=?30) and that of sarcopenia was 35.4% ( n ?=?51). The prevalence of severe malnutrition increased significantly in older participants and the prevalence of nutritional risk, malnutrition and severe malnutrition decreased significantly with higher BMI. The prevalence was 35.4% (51/144) for concurrent sarcopenia and malnutrition, 19.4% (28/144) for frailty and malnutrition, 14.6% (21/144) for sarcopenia and weakness, and 14.6% (21/144) for sarcopenia, malnutrition, and weakness. There was a positive correlation between nutritional risk and frailty ( r = 0.603, P < 0.001). The risk of pre-frailty and frailty in the nutritional risk group was higher than that in the non-nutritional risk group ( χ 2 = 31.830, P < 0.001). The risk of pre-frailty and frailty in the malnutrition group was higher than that in the normal nutrition group ( χ 2 = 36.727, P < 0.001). Logistic regression analysis showed that the risk of frailty in patients with severe malnutrition was 12.303 times higher than that in patients with normal nutrition status (95% CI: 2.592 to 58.409, P = 0.002). The risk of sarcopenia in the nutritional risk group was higher than that in the non-nutritional risk group ( χ 2 = 13.982, P < 0.001). The risk of sarcopenia in the malnutrition group was higher than that in the normal nutrition group ( χ 2 = 37.066, P < 0.001). Conclusions:The prevalence and concurrence rate of malnutrition, frailty, and sarcopenia are high in GIPs undergoing major HPB surgery. GIPs with malnutrition are susceptible to frailty.