CdSe/ZnSquantumdots(QDs)werepreparedandcovalentlylinkedtoanti-katacalcinmonoclonal antibodies. After modification, the QDs' maximum emission wavelength was shifted to 625 nm from 620 nm while maintaining the spectral properties. Then the QDs labeled lateral flow strip and corresponding fluorescence measuring instrument were designed and fabricated. To reduce the cost of strip by reducing the amounts of monoclonal antibodies, appropriate amounts of QDs labeled monoclonal antibodies were sprayed on the conjugation pad, with just one test line on the strip but without the control line. Parameters of the strip were optimized by measuring the signal to noise ratio. By using the strip and fluorescence measuring instrument, procalcitonin (PCT) could be detected in 20 min, and the quantitative detection range was 0. 2-100 μg/L with sensitivity of 0. 1 μg/L. A total of 22 blood samples were measured by both our method and the commercial instrument used in the hoptital. The results were consistent for their Pearson correlation coefficient (0. 9995) and Kolmogorov-Smirnov test (Sig=1. 0). The rapid quantitative detection method for PCT is of great importance to quantitative detection of bacterial infection and rational usage of antibiotics clinically.

Objective To investigate the efficacy of autologous peripheral hematopoietic stem cell transplantation in the treatment of adult dermatomyositis. Methods A 21-year-old patient with dermatomyositis received autologous peripheral hematopoietic stem cell transplantation and was followed up for 6 years. Autologous peripheral hematopoietic stem cells were mobilized by recombinant human granulocyte colony stimulating factor (rhG-CSF) before the transplantation, and the conditioning regimens consisted of cyclophosphamide,methylprednisolone and cyclosporin. Rabbit anti-human T lymphocyte immunoglobulin began to be applied on day 3 after retransfer of stem cells. The improvement in symptoms, physical signs and biochemical indicators was observed, and hematopoietic restructuration and immunity resurrection were evaluated after the transplantation. Results After the transplantation, skin eruption greatly improved and gradually subsided. The muscle force of extremities restored from level Ⅳ before transplantation to level Ⅴ. The level of creatine kinase declined sharply after transplantation, but gradually returned to previous level. Leucocyte count began to decrease on the day of retransfer, and returned to the normal level on day 8. Immune function remained normal before and after the transplantation. Conclusion Autologous peripheral hematopoietic stem cell transplantation is an alternative treatment for severe and refractory dermatomyositis.

Background Retinal hemorrhage in newborns is a common clinical finding,and serious retinal henorrhage resulting in poor prognosis.The factors affecting retinal henorrhage in newborns are unelucidated now.Identifying these factors is helpful for the early prevention and treatment.Objective This study was to explore the underlying maternal,obstetric,and neonatal clinical factors for degree of retinal hemorrhages in healthy full-term newborns.Methods A cross-sectional study was performed in the approval of Ethic Committee of Zhongshan City People's Hospital.A total of 1 311 full-term infants,with gestational age more than 37 weeks and Apgar ≥9 scores were included in this study.Infants with severe systemic diseases or any other eye diseases were excluded.Ocular fundus of the infants were examined with Ret Cam Ⅲ within 4 days of birth and were independently identified by 2 eye doctors.The newborns of retinal hemorrhage were divided into grade Ⅰ,Ⅱ and Ⅲ groups based on Egge criteria,and the infants without retinal hemarrhage served as the normal control group.Maternal,obstetric,neonatal parameters and general factors were analyzed and compared among different groups,and the risk factors that affected the newborns retinal hemorrhage were analyzed by logistic regression analysis.Results Retinal hemorrhage was seen in 28.30％ infants (371/1 311),and 152,116 and 103 infants were identified as grade Ⅰ,Ⅱ and Ⅲ,with the percentage of 11.59％,8.85％ and 7.86％,respectively.Among the factors that examined in the study,cord around fetal neck was the risk factor of aggravation of degree of retinal hemorrhage in newborns (OR =1.308,95％ CI:1.011-1.693,P =0.041).In the mode of delivery,spontaneous vaginal delivery appeared to be the positive factor of the incidence of retinal hemorrhage (OR=0.134,95％ CI:0.132-0.137,P＜0.001),but cesarean section was not a main risk factor.Conclusions Spontaneous vaginal delivery and cord around fetal neck are the potential risk factors for the aggravation of degree of retinal hemorrhage in full-term infants.Accordingly,infants with these risk factors should be paid more attention to prevent the progression of retinal hemorrhage.

0.05).Conclusions The results by GH exercise test is identified with GH provocative test.Because the GH exercise test is safe and simple,it is appropriate to use the GH exercisetest to screen for growth hormone deficiency during childhood.

Objective: To evaluate the value malnutrition-inflammation score(MIS) for the nutritional status in patients with maintenance hemodialysis.Methods: Eighty patients with maintenance hemodiaqlysis were selected in this study.MIS was used to access the nutritional status in these patients.At the same time,the laboratory indexes including serum albumin(ALB),transferrin(TRF),hemoglobin(Hb),serum creatinine(Scr),blood urea nitrogen(BUN),C-reactive protein(CRP),serum calcium(Ca) and phosphorus(P) were measured,and Kt/v,urea reduction ratio(URR) and protein catabolic rate(PCR) were calculated.The body composition was also measured by bioelectrical impedance analysis after postdialysis,including body weight(WT),body mass index(BMI),fat mass(FAT MASS),fat-free mass(FFM) and total body water(TBW).Results: The abnormal rates of these nutritional marker were: protein malnutrition(ALB1.8 mmol/L) 70.0%,respectively.All patients were mild or moderate malnutrition by MIS.MIS showed a significant correlation with WT,BMI,ALB,TRF,Hb and CRP(P﹤0.001,P

Aneurysm, Dissecting ; surgery ; Aortic Aneurysm ; surgery ; Blood Vessel Prosthesis Implantation ; Humans ; Postoperative Complications ; Stents

Object To optimize the extraction conditions of Fumai Decoction. Methods Uniform design test was used, and the contents of glycyrrhizinic acid and ginsenoside Rb 1 in extracted solvent were determined by HPLC. Results The ethanol volume and the extracting temperature in the uniform test impacted the test remakably. The best extraction process of Fumai Decoction as follows: the raw drugs were extracted by 10 times of 50% ethanol at 60 ℃ for 4 hours. Conclusion Glycyrrhetinic acid and ginsenoside Rb 1 contents in Fumai Decoction are higher according to the above extraction process.

Objective To compare the efficacy of weight loss,metformin and rosiglitazone in women with polycystic ovary syndrome(PCOS).Methods A randomized controlled trial(RCT)was carried out in Peking Union Medical College Hospital(PUMCH),one hundred and six women with PCOS were assigned to three intervention groups:weight loss,weight loss and metformin,weight loss and rosiglitazone group.Patients were treated with weight loss(diet and exercise),weight loss and mefformin (500 mg three times daily),weight loss and rosiglitazone(4 mg once daily)for three months.Sixty patients completed treatments.Basal body temperature(BBT),total testosterone as well as fasting serum insulin levels and lipid were measured and compared in all patients before and after weight loss.Results No significant differences were found in the baseline characteristics among three groups.In weight loss group 51%(22/43)patients completed treatment,and 23%(5/22)patients resumed ovulation.In weight loss and mefformin group 58%(21/36)patients completed treatment,and 43%(9/21)patients resumed ovulation.In weight loss and rosiglitazone group 63%(17/27)patients completed treatment,and 59% (10/17)patients resumed ovulation.Ovulation rate was significantly higher in weight loss and rosiglitazone group than in weight loss group.There was no significant difference among three groups in body mass index (BMI),waist circumference,waist-hip ratio(WHR),sex hormone,serum fasting insulin and lipid level after treatment.Conclusion Weight loss,metformin and rosiglitazone all can improve ovulation each.

During growth and progression, the microenvironment of tumors suffers a series of abnormal characteristics, which include hypoxia, acid pH, increased oxidative stress, excess glutathione (GSH), as well as certain overexpressed enzymes. Although affect or limit the cancer therapeutic outcomes, these factors provide possible approaches to strategies for cancer detection and novel therapy at the same time. Recently, based on these properties of the tumor microenvironment (TME), various kinds of responsive nano-platforms have been continuously developed and applied in cancer theranostics preliminarily. Thus, this review would introduce the typical features of TME firstly, then detailly summarize the design principles and research progress of corresponding hypoxia-responsive, pH-responsive, redox-responsive, enzyme-responsive, dual-responsive and multi-responsive nano-platforms. Finally, the challenges and the perspectives of the TME-responsive nano-platforms are briefly discussed.

Objective To compare the effects of short- term high- intensity interval training (HIT) and moderate continuous training (MCT) on inflammatory mediators for healthy young males. Methods 19 healthy young male volunteers were randomized into HIT group (n=6), MCT group (n=7) and no training control (CON, n=6) group. The groups of HIT and MCT accepted treadmill exercise once per 2 days to 6 times (2 weeks), and the CON group did not accepted treadmill exercise. The levels of high-sensitive C-reactive protein (hs-CRP), interleukin (IL) -1α, IL-6 and tumor necrosis factor α (TNF-α) were detected 3 days before exercise, immediately after the first exercise, 3 days after the course. Results There was no difference among groups in the level of hs-CRP, IL-1α, IL-6 and TNF-α in all the time (P>0.05). The concentration of IL-1α increased in the MCT group after the first exercise (P<0.01), and also the concentration of IL-6 in the CON group after the course (P<0.05). Conclusion It needs further srudy for the significance of HIT and MCT in the levels of inflammatory media.