Cytomegalovirus(CMV) is an important pathogen of congenital and postnatal infections in children,which causes a series of acute and chronic infectious diseases and nervous system sequelaes.Early and accurate diagnosis of pediatric CMV infection is an effective way to improve health in children.This paper will introduce the types,laboratory techniques and diagnostic strategies of CMV infection based on the diagnostic standards at home and abroad,and also focus on current progress in diagnosis of pediatric CMV infection.

Objective:To generate rabbit polyclonal antibody against human Argonaute2 (Ago2) protein and to identify its functional characterization for determination of differential expression and cellular localization of Ago2 protein in various cell lines.Methods:DNAstar software was applied for searching the high antigenicity region of Ago2 gene sequence termed k-Ago2.Prokaryotic expressing plasmid was constructed and transformed to E.coli BL21 (DE3) to induce expression by IPTG.The fusion protein was injected into rabbits subcutaneously to produce polyclonal antibodies after purification by gel regaining.ELISA was operated to detect antibody titer.Western blot was used to identify the specificity and sensitivity of the antibodies and detect the differential expression of Ago2 protein in various cell lines.Meanwhile,immunofluorescence experiments were arranged to show cellular localization of Ago2 protein.Results:The prokaryotic expressing plasmid was constructed correctly.K-Ago2 protein was expressed and purified,and then rabbit polyclonal antibodies against Ago2 were generated after immunization with k-Ago2 protein.The titer detected by ELISA was 1∶19 000.Western blot results demonstrated the high specificity of the antibodies.Finally,we successfully observed the differential expression and cellular localization of Ago2 protein in various cell lines.Conclusion:The polyclonal antibody against Ago2 protein has been achieved successfully.It will be propitious for the intensive study of the RNAi mechanism and even profound clinical application.

BACKGROUND:Biological dressing A (porcine Xenoderm) and Physiotule Ag (Coloplast) show good effects on the absorption of exudates, adhesion and anti-bacteria in treatment of degree Ⅱ facial burns. OBJECTIVE:To observe the effectiveness of biological dressing Aversus Physiotule Ag after early debridement of degree Ⅱ facial burns. METHODS:A total of 15 patients with superficial degree Ⅱ facial burn and 10 patients with deep degree Ⅱ facial burns were included. Symmetric facial area of the same patient with the same depth of burn was divided into two parts of same size for treatments. One side was randomly selected as the experimental side, and treated with biological dressing A. The other was selected as the control side and treated with Physiotule Ag. We compared wound healing time, infection, times of changing dressings, skin after healing, drug change comfort and dressing comfort between the two sides. RESULTS AND CONCLUSION:In patients with superficial grade Ⅱ facial burn, times of changing dressings and drug change comfort were better in the experimental side than in the control side (P < 0.05), but the dressing comfort was better in the control side than the experimental side (P< 0.05). No significant difference in wound healing time, infection and skin after healing was detected between the two sides. In patients with deep degree Ⅱ facial burns, wound healing time, times of changing dressings, skin after healing and drug change comfort were better in the experimental side than in the control side (P < 0.05), but the dressing comfort was better in the control side than the experimental side (P< 0.05). No significant difference in infection was detectable between the two sides. Above findings suggested that the therapeutic effects of biological dressing A and Physiotule Ag were similar in treatment of degree Ⅱ facial burns. Biological dressing A in repair of deep degree Ⅱ facial burns promotes the wound healing andelevates the quality of healing.

OBJECTIVETo observe the effect of total flavones of Epimedium leptorrhizum (YYH-C) on osteoporosis in ovariectomized rats.

METHODOvariectomized female rats were randomly divided into the model group, YYH-C lower, middle and high dose (0.7, 1.4, 2.8 g x kg(-1)) groups, the positive drug Bujiale (0.15 mg x kg(-1)) group, and the sham group. The rats were orally ad-ministrated with drugs for three months. Parathyroid hormone (PTH), procollagen I N-terminal peptide (PINP), alkaline phosphatase (ALP), calcium (Ca) and phosphrous (P) in serum were detected. Femur bones and vertebrae bones of left side were collected to determined bone metrological indexes, including bone mineral density (BMD), bone Ca, and bone ash weight/dry weight percentage. Femur bones of right side were collected to for a morphological observation of bone.

RESULTCompared with the sham group, the model group showed significantly higher PTH and ALP content but obviously lower PINP and Ca content. The three YYH-C 3 groups could resist the decrease of PINP. Specifically, low and middle dose groups could remarkably inhibit the increase of PTH, and the high dose group could increase the Ca content in serum, but without significant effect on the rise in ALP. There was no significant difference in P content in serum in each group. BMD, ash weight/dry weight percentage, Ca and P content of the model group were significantly lower than those in the sham group. The high dose YYH-C group could significantly increase BMD. All of the three YYH-C groups could notably increase ash weight/dry weight percentage and Ca, P content in femur bones and vertebrae bones. YYH-C could significantly increase average thickness, area, area percentage of bony trabeculae, cortical bone area percentage of femoral shaft and the number of osteoblasts on the surface of bony trabeculae, and decrease the number of osteoclasts.

CONCLUSIONYYH-C can effectively control the bone mass loss of rats with ovariectomy-induced osteoporosis, prevent the changes in bone microstructure, and inhibit bone absorption, so as to resist high turn-over osteoporosis after ovariectomy. [Key words] total flavones of Epimedium leptorrhizum; ovariectomized rat; osteoporosis

Alkaline Phosphatase ; metabolism ; Animals ; Bone Density ; drug effects ; Calcium ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; Epimedium ; chemistry ; Female ; Flavones ; administration & dosage ; Humans ; Osteoporosis, Postmenopausal ; drug therapy ; metabolism ; physiopathology ; Ovariectomy ; Parathyroid Hormone ; metabolism ; Rats ; Rats, Sprague-Dawley

Endoplasmic reticulum (ER), a multifunctional organelle in eukaryotic cells, is responsible for protein synthesis and intracellular signal transduction, which dominates cell function, survival, and apoptosis. Disequilibrium of ER homeostasis may induce ER stress, which closely intertwines with tumor occurrence and progress. A few clinical-used drugs (such as anthraquinones and oxaliplatin) can mediate the immunogenic cell death of tumor cells through excessive ER stress, and sequentially stimulate anti-tumor immune responses as well as long-term immune memory. However, these drugs often exhibit poor targeting ability and extremely low ER accumulation in tumor cells, limiting their clinical efficacy. Therefore, the researches of ER-targeted delivery of these drugs will significantly benefit the efficient and precise anti-tumor immunotherapy. In this review, we introduce the relationship between ER and tumor immunity, and summarize the ER targeting strategies for anti-tumor immunotherapy in recent years. Furthermore, we discuss the problems of existing ER targeting strategies and look into its broad prospects of application.

OBJECTIVETo discuss the mechanism of scar hypertrophy in adenosine receptor A(2A) (A(2A) R) knockout mice.

METHODSAnimal models of hypertrophic scar were established in 12 A(2A) R knockout mice and 12 wild-type mice as control. The thickness and the size of transverse section of the hypertrophic scar were observed by H-E staining. The hydroxyproline (HYP) in the scar was measured colorimetrically. The TGF-beta expression was tested by Western blotting method.

RESULTSThe hypertrophic scar in wild-type mice was more severe than that in knockout mice. Compared with self-control, the increase of the thickness and the size of transverse section of hypertrophic scar was markedly higher in wild-type group than in the knockout group (P < 0.01). There was significant difference in HYP content between the two groups (P < 0.01). Compared with self-control, the increase of TGF-beta expression in wild-type group was much more than that in knockout group (P < 0.01).

CONCLUSIONSThe TGF-beta expression decreases in the A(2A) R knockout mice. The scar hypertrophy is also much less in the A(2A) R knockout mice.

Animals ; Cicatrix ; metabolism ; pathology ; Disease Models, Animal ; Mice ; Mice, Knockout ; Receptor, Adenosine A2A ; genetics ; Transforming Growth Factor beta ; genetics ; metabolism

AIMTo explore effects of Ginsenosides (Rb1, Rg1) on the expression of Bcl-2, Bax in the serum of kidney ischemia/reperfusion inducing apoptosis of HK-2 cells.

METHODSThe serum of rabbits with renal ischemia/reperfusion (SIR) and the control serum of rabbits (SC) were acquired and cultured with HK-2 cells. Detected apoptosis with TUNEL assay. The experiment was designed as: control group,ischemia/ reperfusion group, Rb1 blocking group and Rg1 blocking group. To detect the expression of Bcl-2, Bax with immunocytochemistry after 24 hours' cultured.

RESULTSThe expression of Bax in Rb1 blocking group and Rg1 blocking group were significantly decreased (P < 0.01), the ratios of Bcl-2/Bax were increased as compared with ischemia/reperfusion group.

CONCLUSIONRb1 and Rg1 have protective effects on apoptosis of HK-2 cells induced by serum of kidney ischemia/reperfusion.

Animals ; Apoptosis ; drug effects ; Cell Line ; Female ; Ginsenosides ; pharmacology ; Ischemia ; blood ; Kidney ; blood supply ; Kidney Tubules, Proximal ; cytology ; Male ; Proto-Oncogene Proteins c-bcl-2 ; genetics ; metabolism ; Rabbits ; Reperfusion Injury ; blood ; Serum ; physiology ; bcl-2-Associated X Protein ; genetics ; metabolism

Objective The purpose of this study was to provide efficient evidence to the treatment and nursing for patients with colorectal cancer after colostomy surgery by conducting a quality of life survey on the patients. Methods The WHOQOL-BREF scale was distributed to 103 patients after colostomy surgery in the Tumor Hospital of Yunnan Province. Results The average score of these patients was 23.45±9.92,with the highest score of 29, the lowest score of 13. In terms of quality of life in the physiological field and psychological field, there was a significant difference between the high self-efficacy ability and low self-efficacy ability ( <0.05) .In terms of quality of life in the social field and environment field, there was no significant difference between the high self-efficacy ability and low self-efficacy ability (>0.05). Conclusion The patients’familiarity with stomas was closely related to the quality of life, which indicated that the quality of life could be improved by improving the patient's familiarity with stoma care.It is necessary to know the condition of colostomy care in different postoperative stages and provide efficient support and help for the patients.

Objective To analyze the efficacy of different treatment methods for end-stage hepatic alveolar echinococcosis combined with obstructive jaundice.Methods A retrospective study was conducted on the diagnosis and treatment of 55 patients with end-stage hepatic alveolar echinococcosis combined with obstructive jaundice managed from January 2000 to January 2013 at the First Affiliated Hospital of Xinjiang Medical University.The patients were divided into two groups according to the treatment options:group A,the palliative surgery group (n =38,69.1％) using palliative resection and biliary decompression ; and group B,the interventional group (n =17,30.9％) using percutaneous transhepatic cholangial drainage (PTCD).We analyzd the general data,preoperative and postoperative liver function,operation time,blood loss,average hospital stay,duration of postoperative tube drainage of abscess cavity,degree of lesion with invasion into the first porta hepatis,progressive lesion,continuous invasion and/or distant metastasis,biliary complications,mortality,and cumulative survival rates.The t-test or t'-test was used to analyze continuous data and the chi-square test was used to analyze categorical data.Parallel log rank test and Kaplan-meier method were used to calculate survival rates in survival analysis.Results When compared with group B,group A had significantly longer operative time,more blood loss,and longer average hospital stay (P ＜0.05).The postoperative total bilirubin,direct bilirubin,γ-glutamyl transpeptidase and alkaline phosphatase,aspartate aminotransferase,alanine aminotransferase were significantly higher than in group B (P ＜0.05).The level of post operative albumin was lower in group A than in group B.The two groups of patients (A and B) had similar background including general data (gender,age,nation),preoperative liver function,duration of postoperative tube-drainage of abscess cavity,degree of lesion-invasion into first porta hepa tis,progressive lesion-invasion and/or distant metastasis,biliary complications,mortality,cumulative survival rates and survival curves.Conclusions Interventional treatment is an effective treatment for end-stage hepatic alveolar echinococcosis combined with obstructive jaundice.It has the advantages of minimal invasiveness,simplicity,safety and repeatability.It may replace traditional palliative surgery in the future.