Objective To investigate the immune response of mucosal immunization of new chitosan(CS) nanoparticles coating DNA vaccine. Methods The chitosan nanoparticles containing plasmid DNA encoding H. pylori lipoprotein Lpp20 gene were prepared using a complex coacervation method and then its speciality were analyzed. We then administered the naked plasmid DNA and chitosan-DNA nanoparticles to 6-week-old female BALB/c mice by intranasal or oral mucosal routes to observe the humoral and cellular immune responses. Results Naked plasmid pcDNA3.1 ( + )/Lpp20 and chitosan-pcDNA3. 1 ( + )/Lpp20 nanoparticles both induced effective immune response in mice through mucosal vaccination. Specific IgG and sIgA antibodies of chitosan-pcDNA3. 1 ( + )/Lpp20 nanoparticles groups were higher than that of naked pcDNA3.1 ( + )/Lpp20 group. The concentration of cytokines IFN-γ and IL-4 in cultural supernatant of T lymphocytes from chitosan-pcDNA3. 1 ( + )/Lpp20 nanoparticles immunized mice increased greatly than that of control groups. After stimulated by corresponding antigen, the stimulation index of intranasal or oral delivery of chitosan-pcDNA3. 1 ( + )/Lpp20 nanoparticles group was significantly higher than that of pcDNA3.1( + )/Lpp20 group, CS group and PBS control group. Moreover, systemic and mucosal immune responses in mice induced by intranasal immunization were stronger than that of oral immunization. Conclusion Chitosan nanoparticles enhanced the immune response of pcDNA3.1 ( + )/Lpp20 DNA vaccine by intranasal or oral administration in BALB/c mice. Compared to oral administration, intranasal delivery of chitosan-pcDNA3.1 ( + )/Lpp20 DNA nanoparticles could induce stronger cellular and humoral immune responses in BALB/c mice.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Carcinoma, Renal Cell ; pathology ; surgery ; Female ; Humans ; Kidney Neoplasms ; pathology ; surgery ; Male ; Middle Aged ; Neoplastic Cells, Circulating ; pathology ; Nephrectomy ; methods

Adolescent ; Child ; Child, Preschool ; Chronic Disease ; Colonoscopy ; methods ; Diarrhea ; diagnosis ; pathology ; Female ; Humans ; Infant ; Infant, Newborn ; Male

Objective To explore the family adaptability and cohesion in cerebral palsy children.Methods A total of 225 children were selected in two hospitals of Anhui province from May to November in 2014.Their parents or family primary caregivers were interviewed using Family Adaptability and Cohesion Scale,Second Edition-Chinese version (FACESII-CV) and self-designed general information questionnaire.Results The actual family types of 225 cerebral palsy children families were:102 cases of intermediate type (45.3％),76 cases of extreme type (33.8％),47 cases of balance type (20.9％),while the ideal family types were:92 cases of intermediate type (40.9％),62 cases of extreme type (27.6％),71 cases of balance type (31.5％),it was significant between the actual and the ideal family types (x2=6.817,P＜0.05).The actual and ideal scores of family adaptability and cohesion scale were (64.09 ± 12.23) points,(43.28 ± 9.91) points and (73.91 ± 9.31) points,(52.73 ± 7.16) points,respectively,the difference was significant (t=-9.049,-10.976,P＜0.01).The scores in the family which the mother had a higher culture degree (F=7.075,8.499,P＜0.01),the cerebral palsy children did not live with grandparents (t=5.925,4.138,P＜0.05),the one-child family (t=5.370,4.652,P＜0.05) were higher.Conclusions The relationship between family members are estranged in most cerebral palsy children families,the ability of family coping with stuff is low and the family function is poor,in addition,the family adaptability and cohesion are mainly affected by the mother's culture degree,whether live with grandparents,the number of children.All above these are need to be intervented early to improve family function.

Objective To evaluate the performance of parallel test in detecting malaria infection for returned person from malaria endemic area.Methods The blood samples of 484 returnees from malaria endemic area were analyzed and detected by thick blood smear,rapid diagnostic test (RDT) and nest PCR in four companies involving the African labor dispatching.Results The sensitivi ty of thick blood smear and RDT was 0.628 and 0.744 respectively,which of the parallel test was 0.930.On the other hand,the area under the curve (AUC) of parallel test was 0.930 (95％CI:0.895-0.986),which was higher than thick blood smear[0.814 (95％CI:0.724-0.904)]and RDT[0.847 (95％CI:0.769-0.926)].Conclusion Thick blood smear and RDT,which consist of parallel test,could improve the detection sensitivity and accuracy for returnees from malaria epidemical area effectively.This approach is worthy of popularization and application.

ObjectiveTo investigate the targeting infection of single chain antibody againstAFP (scFv anti-AFP) directed lentivirus and the inhibitory effects of a dual-growth inhibition systemon hepatocarcinoma cells.MethodsPlasmids WtP53-pPRIME-miR30-shRNA-IGF1R,pMD2G-Anti-AFP,and psPAX2 have previously been constructed to cotransfect to the packaging cell line 293Tusing Lipofectamine2000.The infection results were observed through fluorescence microscopy.PCRand Western blotting were used to demonstrate the successful transduction and transcription of theWtP53-pPRIME-miR30-shRNA-IGF1R gene.The effects of reconstructed lentivirus infected liver cellgrowth were assessed by the cell growth curve of CCK8 cells. Apoptosis was evaluated by theTUNEL assay.ResultsRecombined lentivirus was successfully constructed with the functional PFUtiters of recombined lentivirus at 4.58× 109PFU/ml.This positive result was confirmed by PCR andWestern blotting.ConclusionsThe targeted therapy mediated by anti-AFP scFv could significantlyinhibit the proliferation of HEP3B cells and promote the apoptosis.

Nine compounds were isolated from the n-butanol fraction of 95% ethanol extract of the fruit of Alpinia oxyphylla Miq. with a combination of various chromatographic approaches, including MDS resin, silica gel, reverse phase C18 and preparative HPLC. On the basis of spectroscopic data analysis, they were elucidated as (1R, 4R, 10R)-1β, 4α-dihydroxy-11, 12, 13-trinor-5, 6-eudesmen-7-one (1), 1β, 4β-dihydroxy-11, 12, 13-trinor-8, 9-eudesmen-7-one (2), oxyphyllenone A (3), oxyphyllenone B (4), rhamnocitrin (5), staphylionoside D (6), benzyl-1-O-β-D-glucopyranoside (7), 2-O-β-D-glucopyranosyl-(1S)-phenylethylene glycol (8), and (S)-1-phenylethyl-β-D-glucopyranoside (9). Among them, compound 1 is a new sesquiterpene, named as oxyphyllenone C; compounds 8 and 9 are new natural products; compounds 2 and 6 were isolated from the genus Alpinia for the first time, and compound 7 was isolated from A. oxyphylla for the first time.
1-Butanol ; Alpinia ; chemistry ; Chromatography, High Pressure Liquid ; Fruit ; chemistry ; Phytochemicals ; chemistry ; isolation & purification ; Sesquiterpenes ; chemistry ; isolation & purification

Objective To study correlation between MRI signal intensity of the lumbar intervertebral disc and collagen content in the nucleus pulposus.Methods Thirty-one cases with lumbar intervertebral disc herniation(male 21,female 10)received percutaneous lumbar disketetomy.Thirty-one specimens of nucleous pulposus were obtained from percutaneous lumbar disketctomy procedure and collagen content in them was measured with reformed hydroxyproline measurement method.The signal intensity(SI) of lumbar intervertebral disc and cerebrospinal fluid was measured in T_2 WI sagittal image and then ratio of disc SI to cerebrospinal fluid SI was calculated.The Pearson analysis was used to analyze the correlation between the collagen content and SI ratio and disc SI on T_2 WI.Results Collagen content and SI ratio were (231.0?63.5)mg/g and 0.19?0.07,respectively.There was negative correlation between them (r=-0.61,P

OBJECTIVETo retrospectivly compare the clinical efficacy of dynamic hip screw (DHS) with proximal femoral nail anti-rotation (PFNA) for the treatment of unstable intertrochanteric fractures in the elderly.

METHODSTotally 92 elderly patients with unstable intertrochanteric fractures were treated with DHS [including 27 males and 23 females with a mean age of (72.5 +/- 5.3) years old] and PFNA [including 22 males and 20 females with a mean age of (72.8 +/- 5.8) years old] from August 2008 to August 2012. The data of operation time,blood loss (obvious and hidden blood loss), bedridden time, down load time, postoperative complications and Harris hip function score were recorded and compared.

RESULTSBoth of two groups were followed-up for 10 to 18 months with an average of 13.5 months. PFNA was implanted with a significantly smaller incision and shorter clinical healing time, less blood loss,while hidden blood loss were more. Postoperative complications, therapeutic effects and Harris score in PFNA group were better than that of DHS group.

CONCLUSIONFor treatment of senile patients with unstable intertrochanteric fractures, PFNA was superior to DHS in reducing complication rates, recovering hip joint, while DHS could reduce perioperative blood loss in treating type II a, II b and III fracture.

Aged ; Aged, 80 and over ; Bone Nails ; Bone Screws ; Case-Control Studies ; Female ; Femur ; surgery ; Fracture Fixation, Internal ; instrumentation ; Hip Fractures ; surgery ; Humans ; Internal Fixators ; Male ; Middle Aged ; Retrospective Studies ; Treatment Outcome

OBJECTIVETo study on the reliability of the Akagi line as a reference axis to guide for rotational alignment of the proximal tibial component in total knee arthroplasty (TKA) the rotational alignment reference bony landmarks of the proximal tibial component on magnetic resonance image (MRI) were measured.

METHODSFrom January 2010 to December 2013, 80 normal knees of Chinese volunteers including 35 males and 45 females with an average age of (35.4±6.1) years were reviewed. The images of the knees were obtained by MRI. The surgical epicondylar axis (STEA) was identified in the femoral transverse sections and then was projected to the side of tibia, forming the SETA'. A line connecting the medial border of the patellar tendon and the middle of the posterior cruciate ligament insertion (Akagi line) and its vertical line (AK), as well as a line connecting the medial 1/3 of the patellar tendon and the middle of the posterior cruciate ligament insertion and its vertical line (AP), were identified in the tibial transverse sections. The angles were measured between the AK, AP and STEA'.

RESULTSThe angle between AK and STEA' was (0.59±2.07)°, and there was no significant difference between the two lines (t=-2.54, P=0.13). The mean angle between AP and STEA' was (3.21±2.04)°, and there was a significant difference between the two lines (t=14.05, P<0.05). There was a significant difference between the AK and AP (t=-11.68, P<0.05).

CONCLUSIONThe reliability of the Akagi line as a reference axis to guide for rotational alignment of the proximal tibial component in TKA is good.

Adolescent ; Adult ; Arthroplasty, Replacement, Knee ; methods ; Female ; Humans ; Male ; Middle Aged ; Reproducibility of Results ; Rotation ; Tibia ; surgery