Objective To observe effect of Yaotui Litongsan on nerve-related behavior of autograft of nucleus pulposus to cavum epidurale in rats.Methods Fifty normal Wistar rats were randomly divided into five geoups:the sham operated group (A),injury model group (B),Yaotongning treat group (C),high dose and low dose group (Yaotui Litongsan treat,D and E),10 rats in each group.Autogenous nucleus pulposus was removed from the coccygeal vertebral and placed into the back of L5～6 nerve roots of left cavum epidurale,making the non-compressive model with transplanted autogenous nucleus pulposus.The mechanical withdraw threshold and thermal withdraw latency were determined.Results The significant mechanical hyperalgesia was showed in the rats of B,C,D,E groups postoperatively,but it was lighter in C,D,E groups than in B group (P

Objective To study the therapeutic effect of Shengfuling on the healing of various skin defect of human body.Methods Sixty cases of various skin defects were randomly divided into the treated group and the control group,which were treated by Shengfuling and normal healing after debridement,respectively.The healing time of defect areas and skin injury degrees was observed.The post-healing skin quality(color,hardness,tension) of the two groups were compared.Results The treated group had better effect than the control group in skin healing velocity and post-healing skin quality(P

OBJECTIVE:To observe the efficacy and safety of amiodarone combined with valsartan in the treatment of paroxys-mal atrial fibrillation in elderly patients. METHODS:130 elderly patients with paroxysmal atrial fibrillation were randomly divided into observation and control group. Control group was orally given Amiodarone tablet 0.6 g in the first week,3 times a day,0.4 g in the second week,twice a day,0.2 g in the third week,twice a day;observation group was additionally given valsartan capsule 0.4 g in the first 1-3 day(s),once a day,the dose was increased to 0.8 g if patients showed no hypotension,once a day,and then decreased to 0.4 g if the pressure was lower than 100/60 mm Hg,once a day. The treatment course for both groups was 12 weeks. Clinical efficacy,and left atrium(LA),left ventricular end-diastolic volume(LVEDV),left ventricular systolic volume(LVESV), left ventricular ejection fraction (LVEF),heart rate,cardiothoracic ratio,systolic blood pressure,diastolic blood pressure before and after treatment,and incidence of adverse reactions in 2 groups were observed. RESULTS:Total effective rate in observation group was significantly higher than control group,the difference was statistically significant(P<0.05). After treatment,LA, LVEDV and LVESV,heart rate,cardiothoracic ratio,systolic blood pressure,diastolic blood pressure in 2 groups were significant-ly lower than before,and observation group was lower than control group,LVEF was significantly higher than before,and observa-tion group was higher than control group,the differences were statistically significant(P<0.05). There was no significant differ-ence in the incidence of adverse reactions(P>0.05). CONCLUSIONS:The efficacy of amiodarone combined with valsartan is more obvious than only amiodarone in the treatment of paroxysmal atrial fibrillation in elderly patients,with similar safety.

OBJECTIVE:To determine vitamin E in muyan capsule.METHODS:The content of vitamin E in muyan capsule was determined by first-derivative spectrophotometry with detection wavelength at 230nm.RESULTS:The linear range of vitamin E was 14.98 ～ 24.96? g? mL-1(r=0.999 8).The average recovery of vitamin E was 100.1%(RSD=0.26%).CONCLUSION:The method is simple,rapid and accurate,and applicable for the determination of vitamin in muyan capsule.

The tadpole extract without large molecular protein(T-871) was prepared from dry tadpoles. This extract and RPMI1640 medium were mixed in the ratio of 1:50(V/V) to form T-871 medium. HeLa cells were cultured in the T-871 medium in order to study the possible mechanism of HeLa cell differentiation induced by tadpole extract. We found that there was a decreased acitivity of LDH which may be released through HeLa cell membrane in the 2 day's cultured T-871 medium. After 3 day's culture in the T-871 medium we found that on the HeLa cell membranes, Na-K-ATPase activity reduced and the content of Con A receptors increased. When these cells were analyzed by flow cytometry(FACS-420), the results indicated that HeLa cells accumulated in G_2 and M phases of the cell cycle and the influence on DNA and RNA content of the HeLa cells was insignificant. HeLa cells cultured by RPMI 1640 medium or T-871 medium for 3 days were inoculated into the dorsal hypodermis of 12 nude mice, respectively. Then after 24 hours this extract was injected to each nude mouse at dose of 0.3 ml each day. Our study showed that T-871 could result in decrease of tumor formation such as delay of tumor nodule appearance and reduce of tumor weight. This study suggested that the changes of the cell membrane may be caused by the tadpole extract. It may also reduce malignancy of the HeLa cells.

Objective To investigate the changes of lymphocyte subsets before and after the treatment with operation and chemotherapy in patients with breast cancer.Methods Using cytometer to measure lymphocyte subsets of CD3+,CD4+, CD8+,CD4+/CD8+ and NK of 25 breast cancer patients before and after treatment.The all 25 patients were treated with operation and chemotherapy after pathological diagnosis.The article compared the figures of T cell subsets before and after treatment.Results Compared with before operation and chemotherapy,the CD8+ statistically decreased after 1~3 months of treatment (t=2.57),and NK statistically increased after 3~6 (t=-2.23).After 6 months of treatment,the patients’ CD3+(t=-2.25),CD4+(t=-2.07)were statistically lower and NK (t=-3.56)was statistically higher.There was no significant difference for other items.Conclusion Lymphocyte subsets test against breast cancer patients can reflect immuni-ty level at a certain level during treatment.But how to explain the figures in different stage against treatment effectiveness and prognosis need further research.

OBJECTIVE: To establish an RP-HPLC method for the determination of aminophylline,eyhedrine and guaifenesin in Xiaoer kechuan oral solution.METHODS: The determination was performed on Hypersil ODS column(150 mm?4.6 mm,5 ?m).The mobile phase consisted of acetonitrile-0.015 mol?L-1 KH2PO4(0.1% triethylamine and pH value of phosphoric acid adjusted to 2.7)(10 ∶ 90) with a flow rate of 1.6 mL?min-1 and detection wavelength of 254 nm and 209 nm.RESULTS: The linear ranges were 356.4～712.8 ?g?mL-1 for aminophylline,88～176 ?g?mL-1 for eyhedrine and 106～212 ?g?mL-1 for guaifenesin(r=0.999 9).The average recovery rates were 101.0%(RSD=0.73%,n=9),99.7%(RSD=1.00%,n=9),98.3%(RSD=0.44%,n=9),respectively.CONCLUSIONS:The method is simple and accurate for quality control of Xiaoer kechuan oral solution.

Basic Helix-Loop-Helix Leucine Zipper Transcription Factors/genetics* ; Biomarkers, Tumor ; Humans ; Perivascular Epithelioid Cell Neoplasms/surgery* ; Stomach

Objective: To investigate the serotype and drug resistance of 815 Salmonella isolates from Hunan Province, so as to provide insights into management of Salmonella infections. Methods: Salmonella isolates were collected from stool samples of foodborne diarrheal patients and food samples in Hunan Province from 2020 to 2021, and serotyped. Antimicrobial susceptibility test was performed using the broth microdilution method. Results: A total of 10 groups and 39 serotypes were characterized in 815 Salmonella isolates. Among the 646 Salmonella isolates of human sources, 388 isolates were identified as serogroup B (60.06%), with S. typhimurium and its variants aspredominant serotypes (364 isolates, 56.35%), and among 169 foodborne isolates, 61 isolates were characterized as serogroup B (36.09%) with S. london as the predominant serotype (26 isolates, 15.38%). There were 597 antimicrobial resistant Salmonella isolates of human sources, with a drug resistance rate of 92.41%, and the percentage of ampicillin resistance was 81.58%. There were 140 foodborne antimicrobial resistant isolates, with a drug resistance rate of 82.84%, and the proportion of tetracycline resistance was 72.78%. However, Salmonella isolates from both humans and foods were sensitive to imipenem. In addition, there were 577 multidrug resistant Salmonella isolates, including 490 multidrug resistant isolates of human sources and 87 foodborne multidrug resistant isolates. Conclusions S. typhimurium and its variants and S. london were predominant serotypes of Salmonella isolates from 815 foodborne diarrheal patients and food samples in Hunan Province from 2020 to 2021, and a high rate of multidrug resistance was detected.

Objective To investigate the sequences of the 3' end of genomes from enterovirus 71 isolated from pediatric patients with different symptoms in Beijing during 2008-2009.Methods Clinical specimens were collected from pediatric patients suffering from hand,foot and mouth disease(HFMD)and/or with neurological complications who visited the affiliated Children's Hospital during the epidemic seasons of 2008 and 2009 in Beijing.The samples were inoculated into the Vero cell line,and the virus isolates were further identified by nested reverse transcription-nested PCR(RT-nPCR)assay using universal enterovirus primers,type specific primers for EV71 and CA16.The 3' end of genomes(including 3D and 3' UTR regions)from 10 EV71 strains derived from various clinical presentations were amplified and sequenced.Results Analysis of the nucleotide sequences of the amplified fragments showed that the 3' end of genomes of 10 EV71 isolates include the 3D region of 1386 nucleotides(nt)encoding the 3D polymerase(3Dpol,462 amino acids),the terminator codon TGA and 3' UTR of 81 nt.Nucleotide sequence identities among 3D regions from these 10 EV71 isolates were in the range of 95.8%-99.6%,while the nucleotide sequence identities for 3' UTR were 96.3%-100%.The majority of nucleotide changes were located at the third codon positions which caused silent mutations,thus the amino acid sequence changes of 3Dpol among those 10 EV71isolates were scanty.The residues 140 and 263 which were R and 1 were substituted by K and V,respectively in 3 of 4 neurovirulent strains,whereas only 1 of 6 strains from mild cases had these 2 amino acid changes.The sequences of the 3D and 3' UTR regions of 10 EV71 isolates were compared to the representative strains of known genotypes from the GenBank.The nucleotide and amino acid sequences of 10 EV71 isolates in the 3D region exhibited highest homology to the subgenotype C4 of EV71(92.7%-94.2%and 96.8%-97.6%.respectively).However,3' UTR of 10 EV71 isolates shared the highest nucleotide identity with CA16/G10(88.9%-91.4%).The phylogenetic analysis based on the 3D regions demonstrated that 10 EV71 isolates had the closest genetic relationship with the representative isolate of CA sub-genotype of EV71 and shared more homology with CA16/G10 than other known genotypes of EV71.Conclusion Genetic analysis of the 3' end of genomes from 10 EV71 strains indicated that the 3' end of genome may play a role in the evolution of EV71.