Objective To investigate the clinical effect of Kangfuxin liquid topical treatment for open wound of perianal abscess.MethodsEighty patients with open wound were treated with perianal abscess from June 2015 to June 2016.The patients were divided into two groups according to their treatment group.Patients were treated with conventional regimen, while 40 patients in the observation group were treated with routine regimen+rehabilitation solution;the experimental data were compared between the two groups.The two groups were observed and compared the wound healing time (d), granulation growth cycle (d) and healing rate (%);the two groups were observed and compared the incision pain, edema, anal bulge and other symptoms disappeared time;compared two groups of clinical curative effect and complication rate.ResultsThe clinical treatment effect of the observation group was better than that of the control group, the difference was statistically significant (P<0.05).ConclusionThe clinical effect of the treatment of open wound in patients with perianal abscess with conventional therapy+rehabilitation therapy is significant, and the wound healing time is short, which is widely used in the treatment of open wound of perianal abscess.

BACKGROUNDTo investigate epidemiology and HLA typing of highly exposed to HIV but persistently seronegative subjects (HEPS) in commercial blood donors in China.

METHODSThis was a cohort study for epidemiologic characteristics of highly exposed but persistently seronegative subjects. PCR with sequence-specific primer and PCR-SSP for HLA typing were applied.

RESULTSEight HEPS were identified. Compared HLA typing with seropositive couple, high frequency of HLA-a24, HLA-B40 genotyping was observed.

CONCLUSIONHighly exposed to HIV but persistently seronegative subjects in commercial blood donors in China had high frequency of HLA-A24 and HLA-B40 genotype.

Adolescent ; Adult ; Blood Donors ; China ; epidemiology ; Cohort Studies ; Female ; HIV ; immunology ; HIV Antibodies ; blood ; HIV Infections ; epidemiology ; virology ; HIV Seronegativity ; HLA Antigens ; genetics ; HLA-A Antigens ; genetics ; HLA-A24 Antigen ; Histocompatibility Testing ; methods ; Humans ; Male ; Middle Aged ; Polymerase Chain Reaction ; Young Adult

flow cytometry.A strong linear relationship was observed in the standard curve of real-time PCR of each bacteria. Conclusion These three non-culture methods can be used in the quantitative analysis of oral microorganisms.Real-time PCR and laser scanning confocal microscopy are better than the traditional culture-based CFU count,and real-time PCR is the most sensitive method.

Objective To detect the differential gene expression between Streptococcus sobrinus(S.sobrinus) 6715 and its fluoride-resistant strains. Methods The fluoride-resistant strains of S.sobrinus 6715 was induced by increasing the concentration of fluoride step by step.Total RNA of both S.sobrinus 6715 and its fluoride-resistant strains was extracted,mRNA was separated and purificated,and then cDNA was obtained by reversed transcription.Suppression subtractive hybridization(SSH) technology was used to detect the differential gene expression between them.The differential gene expression fragments were cloned and compared with the GenBank by BLAST.Results After comparing with the GenBank by BLAST,it was identified that there were two differential gene expression fragments,fruA and SMU.438c. Conclusion The cDNA subtractive lib of differential gene expression between S.sobrinus 6715 and its fluoride-resistant strains was successfully constructed through SSH,which paves a way for the further study of fluoride-resistant mechanism.

8).The amount of the targeted microorganisms(Streptococcus mutans,Streptococcus sobrinus,Actinomyces viscosus and Actinomyces naeslundii) and the total number of bacterial cells were determined by real-time PCR based on SYBR-Green I fluorescence.Results The percentages of the four targeted bacteria in high-caries group were significantly higher than those in caries-free group(P

Objective To explore the effect of early comprehensive rehabilitation therapy on dysphagia after stroke. Methods A total of 120 stroke patients with dysphagia were collected from December 2006 to May 2009 and divided into 3 trial groups and a control group randomly.No treatment was given to patients in the control group.Patients in trial group 1(T1)were given rehabilitation training,while patients in trial groups 2(T2)and 3(T3)were treated with VitalStim and electrical acupuncture,respectively,in addition to the rehabilitation training.A standardized swallowing assessment (SSA) and the swallowing quality of life(SWAL-QOL) scale were used to evalu-ate all the patients before and after 4 weeks of treatment. ResuIts No statistically significant difference was re-vealed before the treatment among the groups in terms of the patients'sex,age,course of disease,SSA or SWAL-QOL results.Statistically significant improvement was observed after treatment in the 3 trial group,but not in the control group with regard to the SSA and SWAL-QOL scores compared with those before treatment.The trial groups all had higher scores than the control group after treatment.while T2 and T3 had higher scores than T1 after treatment.There was no statistically significant difference between groups T2 and T3.Conclusions Early compre-hensive rehabilitation therapy can improve swallowing and the quality of life of stroke patients with dysphagia.Reha-bilitation combined with neuromuscular electrical stimulation provides effects similar to that of training combined with electrical accupuneture,and is more effective than simple training in treating dysphagia.

OBJECTIVE:To investigate the influential factors for the stability of gardenia yellow solution. METHODS:Using pigment loss rate as index,the stability of gardenia yellow solution was investigated within 12 h under different light(strong light, natural light,dark place),temperature(4,25,60,80 ℃),pH(3.0,5.0,7.0,9.0,11.0),oxidant concentration(hydrogen per-oxide solution,0,0.1%,0.2%,0.3%) conditions. The effects of 3 natural antioxidants as tea polyphenol,rosmarinic acid and grape seed extract on the stability of gardenia yellow solution were investigated within 12 h under different light(strong light,natu-ral light,dark place) and temperature (25,60,80 ℃) conditions;the effects of different concentrations of tea polyphenol (0, 0.05%,0.1%,0.2%)on the stability of gardenia yellow solution were also investigated within 12 h. RESULTS:The pigment loss rates were 20%,10% and 10% within 12 h under 3 light conditions;5%,5%,30% and 60% under 4 temperature conditions;12%,6%,6%,6% and 16% under 5 pH conditions;4%,12%,15% and 18% under 4 oxidant concentrations. After adding 3 antioxidants,pigment loss rate decreased by 10% under different light and temperature conditions except for 80 ℃,and the de-crease of tea polyphenol was most significant;among 4 concentrations of tea polyphenol,pigment loss rate was the lowest in 0.1%group. CONCLUSIONS:Gardenia yellow solution can't keep stable under strong light and high temperature;3 antioxidants can im-prove the stability of gardenia yellow solution,especially 0.1%tea polyphenol.

BACKGROUNDThe efficiency of traditional cryopreservation of human embryonic stem (ES) cells is low, and there have been few attempts to prove new cryopreservation methods effective. This study was designed to evaluate the efficiency of cryopreservation of human ES cells using vitrification method.

METHODSHuman ES cells clumped from an identical cell line were randomly allocated to be cryopreserved by vitrification or by slow freezing. The recovery rates, the growth and differentiation potential of thawed human ES cells were compared between these two groups. The pluripotency of human ES cells after thawing was identified.

RESULTSEighty-one point nine percent (59/72) of human ES cell clumps were recovered after vitrification, while only 22.8% (16/70) were recovered after slow freezing (P < 0.01). The colonies after vitrification manifested have not only faster growth but also a lower level of differentiation when compared to colonies subjected to the slow freezing protocol. However, the rates of growth and differentiation in undifferentiated colonies from both groups were identical to the rates in those of non-cryopreserved stem cells after a prolonged culture period. Passage 6 of vitrified human ES cells retained the properties of pluripotent cells, a normal karyotype and expressed the transcription factor OCT-4, stage specific expressed antigen-4 (SSEA-4) and SSEA-3. Teratoma growth of these cells demonstrated the ability to develop into all three germ layers.

CONCLUSIONSVitrification is effective in cryopreserving human ES cells. During a prolonged culture, human ES cells retain their pluripotency after cryopreservation.

Cell Differentiation ; Cell Survival ; Cryopreservation ; methods ; Embryo, Mammalian ; cytology ; Humans ; Osmotic Pressure ; Stem Cells ; cytology

OBJECTIVETo investigate the possibility of subjective rate, primary task evaluation and psychophysiology evaluation as methods for mental workload assessment of mental arithmetic on visual display terminal (VDT).

METHODSThe indexes including Cooper-Harper scale score, correct rate, speed in answering questions, heart rate variability, pupil size and blink rate were recorded during the performance of three different difficult tasks.

RESULTSWith the variable number of formula increasing, the Cooper-Harper scale score increased, the right rate decreased, the speed decreased, pupil size increased, and blink rate significantly decreased. In comparison with rest, the value of TP, VLF, LF, LFnorm, LF/HF decreased remarkably in the mental arithmetic task, the value of HFnorm, HF/TP, rMSSD increased. However, the difference was not significant among three groups.

CONCLUSIONWith the variable number of formula increasing, the participant's mental workload increases. Every method of mental workload evaluation can assess the mental workload information for three tasks at various different levels in a way. Multi-indexes may be appropriate for mental load assessment.

Computer Terminals ; Humans ; Male ; Mathematics ; Mental Fatigue ; physiopathology ; Mental Processes ; Task Performance and Analysis ; Workload ; Young Adult

OBJECTIVETo investigate the effect of vildagliptin on pentamethazol (PTZ)-induced epilepsy in rats and explore the molecular mechanism.

METHODSSamples of temporal cortex from 23 patients with temporal lobe epilepsy were collected as epilepsy group and samples of temporal cortex from 14 patients with brain trauma were used as control group. Ninety male SD rats were randomly divided into control group (group A), PTZ-induced epilepsy group (group B), saline 2 mL/kg group (group C), vildagliptin 2.5 mg/kg group (group D), vildagliptin 5mg/kg group (group D) and vildagliptin 10 mg/kg group (group F). Use chronic model of epilepsy induced by PTZ (35 mg/kg) intraperitoneal injection for 3 consecutive weeks, and changes of behavior were observed. The expression of GLP-1R was detected by Western blotting and immunohistochemical (IHC) staining, and the expression of GLP-1 was detected by enzyme-linked immunosorbent assay (ELISA). The location of GLP-1R was detected by immunofluorescent staining.

RESULTSImmunofluorescent staining showed that the GLP-1R located in the neurons, and GLP-1R expression was obviously decreased both in patients with TLE and in rats with epilepsy. The latency time was prolonged and epilepsy attack time was decreased after vildagliptin treatment (P<0.05). GLP-1R expression was increased after vildagliptin treatment (P<0.05). ELISA showed the change of GLP-1 expression was the same as GLP-1R.

CONCLUSIONVildagliptin can suppress temporal lobe epilepsy in rats by up-regulating GLP-1 and GLP-1R expressions.