Objective To verify the accuracy,repeatability and consistency with contracting reagent of the high-sensitive C reac-tive protein(hs-CRP)test by using the independently developed reagents.Methods 150 samples were collected,including 130 ser-um samples and 20 plasma samples.4 times of the relative difference of mean value was used as the detection limits,and the regres-sion analysis was performed after excluding 5 sample outliers,then calculated the expected bias at medical decision level with the 95% confidence interval,in order to judge whether the bias was within the allowable range.Results The recovery rate of hs-CRP test reagent were within the allowable range which was 90% -110%.The hs-CRP testing results of plasma and serum samples from the same source were consistent,and the expected bias of medical decision level was in the permissible range.Conclusion The developed reagent used in hs-CRP test have good accuracy,repeatability,and highly consistency with control reagent.

Objective To investigate the expression of vascular growth factors including vascular endothelial growth factor(VEGF), basic fibroblast growth factor(bFGF) and platelet-derived growth factor (p-DGF) in placentae of pregnancy-induced hypertension(PIH) patients and their significance. Methods Placental tissues of 15 normal gravidas and 19 PIH women were collected. The expression of vascular growth factors were detected by immunohistochemistry (PAP) combined with the analysis of computer microphotography. Results The average grey value difference (GVD) of VEGF was 61.6?3.7 in moderate and severe PIH group, which was significantly lower than that of the normal control group (71.1?5.8) and mild PIH (70.9?8.9, P

Oral drug-loaded nano-system include nano-gel drug delivery system, nano-suspension drug delivery system, nano-particle drug delivery system, liposomes drug delivery system, nano-micelles drug delivery system, alcohol liposoms,nano-framework drug delivery system, nano-emulsions drug delivery system, nano-self assembly drug delivery system.These nano-drug delivery systems can serve as multi-functional drug carriers.They may significantly improve the physicochemical and stabilization and biological properties of the free drug, enhance the therapeutic efficiency and reduce toxic side effects.This paper reviews the recent research progress in oral drug-loaded nano-systems.

Objective To study the homology relationship among clinically isolated imipenem-resistant klebsiella pneumoniae strains and possible transmission route of drug resistant strains to provide a basis for blocking the transmission of this kind of bacteria in clinc.Methods Clinical samples collection and bacterial culture were routinely conducted,meanwhile the hand surface of ICU medical staffs and the surfaces of patien's bedside objects were performed the sample collection for conducting the bacterial count and culture.The bacterial identification and drug susceptibility test were performed by the VITEK-2 COMPACT system.The bacterial homology detection adopted the ERIC-rep-PCR method.Results Totally 642 strains of imipenem-resistant Klebsiella pneumoniae were clinically isolated from January 2011 to December 2013.Among them,389 strains(60.59％) were derived from ICU.72 strains (11.21％) fsrom the respiratory department,53 strains (8.26％) from the neurology department,41 strains (6.39 ％) from the cardiovascular department,31 strains (4.83％) from the surgical department,11 strains (1.71％) from the gastroenterology department,5 strains (0.78 ％) from the renal department,17 strains (2.65 ％) from the emergency department and 23 strains(3.58％) from the other departments.One strain of imipenem-resistant Klebsiella pneumoniae was isolated from the IGU object surface.Among 642 clinical bacterial strains,there were 8 main clones,these 8 clone strains added up to 394 strains,which accounted for 61.37％ of whole bacterial strains,the other 248 strains were single clones.Conclusion The monoclonal prevalence of imipenem-resistant klebsiella pneumonia in this hospital actually exists.The contact transmission may be the possible transmission route of this kind of infection.

Objective:To investigatethe maternal and infant adverse outcomes of group B streptococcus (GBS) colonization during the late pregnancy.Methods:A total of 567 pregnant women who underwent obstetrics and gynecology examination in Yuyao People′s Hospital from December 2018 to June 2019 were selected for the study. Internal vaginal secretions of all the pregnant women were extracted from the lower 1/3 of the vagina for bacterial culture, and GBS culture and screening were performed on pregnant women. According to the results of GBS screening, pregnant women were divided into GBS negative group (8 cases) and GBS positive group (559 cases). The general condition and pregnancy outcomes of pregnant women were compared between the two groups, and the correlation between pregnancy outcomes and streptococcus colonization was analyzed.Results:There were no statistically significant differences in age, gestational weeks, number of births, number of pregnancies, history of abortion, residence area and ethnicity between the two groups ( P>0.05). The incidence of premature rupture of membranes and fetal distress in GBS positive group were higher than those in GBS negative group:5/8 vs. 7.69%(43/559), 3/8 vs. 5.01%(28/559), and the differences were statistically significant ( P<0.05). Spearman single factor correlation analysis showed that GBS colonization in pregnant women were positively correlated with premature rupture of membranes and fetal distress ( r = 0.632, 0.573, P<0.05). Conclusions:GBS colonization in late pregnancy is closely related to pregnancy outcomes, and strengthening GBS screening has great significance to reduce adverse pregnancy outcomes.

Objective To develop a nested PCR for the detection of early syphilis and genotyping of Treponema pallidum (TP), and to investigate the distribution of genotypes of TP in Guangzhou. Methods Specimens were consecutively collected from genital ulcers of patients with suspected chancre during 2002-2004, and were detected by dark-field microscopy and nested PCR. The acidic repeat protein (arp) gene and the T. pallidum repeat (tpr) gene family were amplified with the positive specimens above. The number of repeats presented in the arp gene and the restriction fragment length polymorphism by Mse I in the tpr gene were analyzed by electrophoresis. The strains were genotyped according to Pillay's criteria. Results Out of 62 patients with suspected chancre, 33 cases (53.2%) were positive by dark-field microscopy and 54 cases (87.1%) by nested PCR. Of 47 TP-positive specimens genotyped by arp gene, 36 (76.6%) were type 14, while of 49 cases genotyped by tpr gene 39 (79.6%) were type d. By combining genotypes of arp and tpr genes, 7 genotypes were found, including 14d (31, 66.0%), 13d (5, 10.6%), 14b (4, 8.5%), 12b (3, 6.4%), 12d (2, 4.3%), 15d(l, 2.2%) and 14i (1, 2.2%). Conclusions Nested PCR shows a high sensitivity in early detection of TP. Genotype 14d seems the predominant type of TP in Guangzhou.

Objective To study the optimum determination conditions for lymphocytic proliferation by CCK-8 method in mice.Methods To study the different influence factors of spleen cell proliferation experiment stimulated by mitogen concanavalin A (ConA) or lipopolysaccharide (LPS),including cell preparation method,lymphocytic density,FBS and stimulating agent concentration in culture medium,and stimulating immediately or 24 h after preparing cell,with cross design or two factor completely randomized design.Results Spleen lymphocytic proliferation rate of preparation method by light suppression was higher than that of the light grind.The appropriate concentration of spleen cells was 5 × 106/mL.The proliferation rate has no significant difference after being stimulated for 48 or 72 h by ConA (2,5,or 1 0 μg/mL) or LPS (10,20,or 50 μg/mL) under 10％,15％,or 20％ FBS concentration in culture medium.The proliferation rate of stimulating immediately after preparing cell was higher than that of 24 h after preparing cell.Conclusion The optimum conditions of Balb/C mouse spleen cell proliferation assay stimulated by ConA and LPS are as follows:preparation of spleen cells with light pressure,spleen cell concentration of 5 × 106/mL,direct stimulation with 2-10 μg/mL ConA or 10-50 μg/mL LPS in the day of preparation.

Aim: To investigate the pathological changes in NTBC[2-(2-nitro-4-trifluoro-methyl-benzoyl) -1,3 cy-clohexanedione]-induced hepatic injury in mice and in the repopulation of adult hepatocytes in Fah~(-/-) mouse. Methods: Autogenous hepatic injuries in Fah~(-/-) mice were induced by the treatment of NTBC. Injection of hepatocytes obtained from wild-type mice to spleen were transplanted into the Fah~(-/-) mice. Then, changes to body weight and the likelihood of the transplanted Fah~(-/-) mice, and hepatic immunohistochemistry were ob-served. In addition, pathological changes to liver damage induced by NTBC treatment were analyzed under HE-staining microscopy and electron microscopy. Results: The surviving Fah~(-/-) mice subjected to hepatocyte trans-plantation were found to be healthy and in stable body weight. liver repopulation reached to 90% in the 8th week. Repopulating hepatocytes caused no alteration to histological structure of the recipient liver, and subacute hepatic injury occurred in the Fah~(-/-) mice after NTBC treatment. Electronic microscopy observations indicated that necrosis in the hepatocytes occurred at early stage and that apoptosis gradually appeared. It was also shown both necrosis and apoptosis co-existed in the same samples of interest at the following stages of the induced liver injury. Conclusion: Transplanted hepatocytes proliferated in Fah~(-/-) mice allow 90% of the hepatocytic repopula- tion. Repopulation renders normal hepatic function and structure in the recipient Fah~(-/-) mice, as a model of liver repopulation, could be applicable in study of stem cell derived hepatic cells in transplantation assay.

Objective:To assess incidence of malnutrition and malnutrition risk of six department patients.Methods:The information of 1 200 patients were collected,200 in each of 6 departments in our hospital.Nutrition status was assessed according to Nutrition Risk Screening(NRS)published by ESPEN in 2001.Results:The incidence of malnutrition and malnutrition risk varied from 7.5% to 59% and 36% to 72% respectively in different department.Conclusion:The incidence of malnutrition is closely related to the kind and severity of the disease.It is nessissary to assess the nutrition status of high risk patients in time.NRS can be used simply and fastly in most inhospital patients.

Objective To investigate the chemical properties of superficial cardiac neurons. Methods By means of immunohistochemical ABC technique,the study was performed concerning the distribution of calcitonin gene-related peptide(CGRP) and substance P(SP) in the canine main cardiac superficial plexus. Results CGRP-immunoreactive(IR) neurons were found in every plexus,but SP-IR neurons could be observed only in dorsal atria plexus(DAP),inter atria plexus(IAP) and aorta-pulmonary plexus(A-PP).The shape and size of CGRP-IR and SP-IR neurons were similar.The comparative study on atria and ventricles indicated that CGRP-IR and SP-IR neurons in atria were more than those in ventricles.Numerous CGRP-IR,SP-IR nerve fibers could be observed in each fat pats and intermyocardiocytes.These nerve fibers were usually situated near blood vessels,or were attached to vessel wall.Somewhat CGRP-IR and SP-IR nerve fibers were connected with myocardiocytes in some regions.Conclusion The results indicated that actually existed two peptides in canine cardiac superficial plexus.These implied that the regulations of the two kinds of peptidergic neurons to atria and ventricle were different.The two kinds of neurons mentioned above were likely to perform different or similar functions in canine heart.CGRP and SP could possibly modulate the activities of myocardiocytes and vessels of heart directly.