AIM: To study the effect of CVB-D on contraction of guinea pig Oddi's sphincter in vitro. METHODS: Within the range from 1?10 -7 M to 3?10 -6 M, CVB-D's effects on the smooth muscle under the following conditions were observed: 1) the two phases of the Oddi's sphincter contractive curve caused by 80 mM K+ and 5?10 -6 M Ach; 2)together with verapamil, the contraction of Oddi's sphincter induced by 80 mM K+ and 5?10 -6 M Ach respectively. RESULTS: The relation between the amount of CVB-D and rapid contraction of desived inihibitory response was possessed of a dose-effect one, as well as ratio of plateau and peak of contractions, and slightly elevated contraction in continuous phase. CVB-D kept rapid phase peak value and plateau/peak value decreased markedly that expressed a dose-effect relationship. Contrary to CVB-D. Ach caused rapid, continuous phase and plateau/peak value to fall according as CVB-D decreased. Combination of verapamin and CVB-D led rapid phase peak value induced by KCl to lessen, but do not influence verapamin plateau used only and vanish plateau of rapid phase induced by Ach. CONCLUSION: CVB-D's effects on the contraction of Oddi's sphincter are related to the agonists and contractive phases, which reflect its effects on Ca 2+ channels.

Objective: To evaluate the pharmacodynamic of clematis. Methods: 1) The relaxation of isolated ileum muscle of guinea pig by clematic was tested. The antagonism of clematis on histamine or Ach induced ileum muscle contraction was tested also. 2) By using the model of turning of trunk, the pain releasing effect of clematis was evaluated. 3) The experiments about anti-inflammation action of clematis were carried out in two models. Results: Clematis relaxed the ileum muscle. It also antagonized the contraction of the muscle caused by histamine and Ach. A single intrapeditional administration of clematis to Kun-Ming mice significantly prolonged the latency and reduced the writhe number at the turning of trunk model; clematis dose-dependently inhibited the mouse ear swelling caused by xylol. It also had anti-inflammation effect at the other model. The results demonstrated that clematis could release the pain, suppress the inflammation and smooth muscle contraction.

Objective To evaluate the predictive value of ABCD3-I score for early stroke risk after transient ischemic attack (TIA). Methods A total of 136 consecutive patients with TIA admitted to the Department of Neurology,the First Hospital of Shangqiu from January 2010 to December 2012 were enrolled. The clinical data,medical history and image findings of the patients were collected. The incidence of stroke was observed within 90 days. The occurrence of stroke risk after TIA were scored with the ABCD2 and ABCD3-I. Logistic regression analysis was used to analyze the impact of risk factors for early stroke after TIA. The area under the curve (AUC)of receiver operating characteristic was used to compare the predictive values of the two kinds of scores. Results Of the 136 eligible patients with TIA,19 cases (14. 0%)had cerebral infarction within 90 days after TIA. There were no death and hemorrhagic stroke. The results of multivariate regression analysis showed that the duration of TIA≥60 min (OR,1. 060,95%CI 1. 012-1. 112)was an independent risk factor for early progressing stroke after TIA (P<0. 05). In the ABCD2 scoring model for risk stratification of low-,moderate-,high-risk groups,the incidences of stroke within 90 days were 5. 6%(4/72),18. 5%(10/54),and 50. 0%(5/10),respectively. In the ABCD3-I score model for risk stratification of low-,moderate-,high-risk groups,the incidences of stroke within 90 days were 0,7. 1%(6/84),and 52. 0%(13/25),respectively. In the low-,moderate-,high-risk groups,there were significant differences in the incidences of stroke in 90 days between the ABCD3-I and ABCD2 scoring models (P<0.01). The AUC of ABCD3-I score (0. 839,95%CI 0. 766-0. 896)was higher than that of ABCD2 score (0.783,95%CI 0. 704-0. 849;P<0. 01). Conclusion The ABCD3-I score may effectively predict the risk of early stroke after TIA,and its accuracy is better than ABCD2 score.

Based on previous clinical and basic research on autohemotherapy,its effective mechanism was explored.Autohemotherapy was used as the keyword in the document retrieval of databases such as the Pubmed,CNKI,Wanfang,VIP,and etc.from 1990 to 2017.Previous clinical and basic research results of our team were also combined in the analysis of effective mechanism study on autohemotherapy in the treatment of acne.The results showed that autohemotherapy displayed the treatment effect of acne vulgaris through the regulation of Th1/Th2 immune deviation and micro ecological imbalance of local lesions,which may be one of the important ways in the treatment of acne vulgaris by autohemotherapy.It also reflected the regulation of Yin and Yang to reach the balance.It was concluded that in the future research,taking the effect of Th1/Th2 immune deviation and micro ecological imbalance of local lesions as the starting point,it will provide experimental basis for the effect of regulating Yin and Yang to reach the balance.It can provide certain scientific basis for its clinical application.

Objective: To investigate the contamination status and assess the potential consumption risk of Listeria monocytogenes ( L. monocytogenes ) in cooked meat products in bulk in Zhejiang Province, so as to provide strategy for food safety supervision and management. Methods: A total of 2 320 cooked meat products were sampled from eleven cities in Zhejiang Province during 2018-2020. The detection of L. monocytogenes was carried out in accordance with the national standard GB/T 4789.30-2016. Risk Ranger software was used for the semi-quantitative risk assessment on the whole population and pregnant women. Results: The total detection rate of L. monocytogenes in cooked meat products in bulk in Zhejiang Province was 2.97% ( 69/2 320 ). The detection rates in stewed, smoked/roasted, fried, dried products and others were 3.85%, 1.81%, 0.59%, 0% and 0.94%, which were significantly different ( P<0.05 ). There were 28 positive samples in 1 069 samples collected in 2020, with the concentration ranging from 5 to 590 CFU/g and averaging 6.8 CFU/g. The estimated number of listeriosis cases each year caused by consumption of cooked meat products in bulk was 131 in the whole population with a risk score of 42, and 1.44 in pregnant women with a risk score of 54. The risk coefficient could reduce to approximate zero after sufficient heating before intake. Conclusion The prevalence of L. monocytogenes in cooked meat products in bulk in Zhejiang Province during 2018-2020 poses a potential risk in food safety. Pregnant women should avoid eating.

Objective: To establish a rapid GeXP-based multiplex reverse transcription-PCR assay (GeXP assay) for simultaneous detection of 5 subtypes of diarrheogenic Escherichia coli. Methods: Specific primers were designed according to reserved sequences of 12 virulence genes in enterotoxigenic E. coli (ETEC), enterinvasive E. coli (EIEC), enteropathogenic E. coli (EPEC), enteroaggregative E. coli (EAEC) and enterohemorrhagic E. coli (ETEC), and PCR amplification was performed with a single pair of primers to validate the specificity of PCR assay with a single template and a single pair of primers. The specificity of the GeXP assay was evaluated with the genomic DNA of 5 subtypes of diarrheogenic E. coli as the template in a mixture of 12 pairs of primers, and the sensitivity of the GeXP assay was evaluated with the mixed suspensions of 5 subtypes of diarrheogenic E. coli at concentrations of 106, 105, 104 and 103 CFU/mL as the template. Foods purchased from supermarkets and agricultural retail markets were prepared into 34 spiked samples, and 5 subtypes of diarrheogenic E. coli were detected using the GeXP assay and compared with the fluorescent real-time multiple PCR assay. Results: The sizes of sth, pic, bfpB, astA, lt, escV, aggR, stx1, uidA, invE, stx2 and stp genes amplification products were consistent with expected sizes using a single template and a single pair of primers, with a fluorescent signal intensity of more than 25 000 A.U. The sizes of the GeXP assay amplification products of 12 virulence genes in 5 subtypes of diarrheogenic E. coli were consistent with expected sizes, with a high specificity. If the concentration of the mixed suspensions of 5 subtypes of diarrheogenic E. coli was 103 CFU/mL, the GeXP assay was effective for simultaneous detection of 12 virulence genes, with a high fluorescent signal intensity, consistent repeated detection results and a less than 10% coefficient of variation. The GeXP assay detected 3 ETEC isolates, 12 EAEC isolates, one EIEC isolate, one EPEC isolate and one EHEC isolate among the 34 spiked samples, which was in agreement with the detection of 5 subtypes of diarrheogenic E. coli with commercial fluorescent real-time multiple PCR assay kits. Conclusions A GeXP assay has been successfully established for simultaneous detection of 12 virulence genes in diarrheogenic E. coli, which is effective for clinical differential diagnosis and epidemiological surveys of diarrheogenic E. coli.

Objective To review the diagnosis and treatment of basal cell carcinoma of the scrorum. Methods Clinical data of 7 patients with basal cell carcinoma of the scrotum were analyzed retrospectively. The mean age of the patients was 66 years. The most common presenting symptom was a plaque or nodular lesion with pruritis on the scrotum. The lesions ranged from 1.5 cm to 4.5 cm in diameter. Five of the 7 patients had a history of misdiagnosis. The diagnosis was established by biopsy of the lesion in all the patients. All of the 7 patients had no distant metastasis at the time of diagnosis and were treated by wide surgical resection.Results Histopathologic examination of the specimens confirmed the negative surgical margins in all cases.The most common histological feature was lobules, columns, bands and cords of basaloid cells associated with a surrounding loose fibromucinous stroma.One patient developed left inguinal lymph node metastasis at 21 months postoperatively,and was treated by bilateral inguinal lymph node dissection.The patient was free of cancer for 36 months after that. Another patient developed lung metastasis 48 months after the first operation.He was treated by systemic chemotherapy with cyclophosph amide, epirubicin and cisplatin for 6 cycles and obtained complete remission.This patient was free of cancer for 13 months after the chemotherapy.The remaining 5 patients were all free of cancer after the operation. Conclusions Basal cell carcinoma of the scrotum is rare.Wide surgical resection alone is usually considered to be curative. Because of its potential of metastasis, long-term followup is indicated for this disease.

Objective:To investigate the clinical efficacy of postoperative radiotherapy combined with compound matrine injection on the patients with breast cancer.Methods:Eighty-three patients with breast cancer received breast-conserving and sentinel lymph node biopsy before the study who were admitted in our hospital were divided into the control group and observation group.Forty-two patients in control group were treated with postoperative radiotherapy,and forty-one patients in observation group were received postoperative radiotherapy combined with compound matrine injection.The CA125,CA153,CA724,levels of CD3+,CD4+,CD8+,CD4+/CD8+,NK,and adverse reaction in the two groups were detected and compared.Results:After treatment,the CA125,CA153,and CA724 in both groups were obviously decreased (P＜0.05),which were significantly lower in the observation group than those of the control group (P＜0.05).CD3+,CD4+,CD8+,CD4+/CD8+,and NK cell in the observation group showed remarkable improvement (P＜0.05) compared with those before treatment.And CD3+,CD4+,CD4+/CD8+,and NK cell of the observation group were significantly higher than those of the control group,while CD8+ was much lower (P＜0.05).During the treatment period,the incidence of skin reaction over grade Ⅱ,and myelosuppression in observation group were much lower than those of control group (P＜0.05).Conclusion:Postoperative radiotherapy combined with compound matrine injection had good ability in enhancing the cellular immune function and reducing adverse reaction on the patients with breast cancer.

Aim To investigate how Farnesoid X re-ceptor (FXR),a nuclear hormone receptor,acts on neurological behaviors such as emotion,social behav-ior,memory and so on.Methods FXR’s function in central nervous system was evaluated by conducting a battery of behavioral tests including elevated plus maze test (EPMT),forced-swimming test (FST),social in-teraction test (SIT ), and passive avoidance test (PAT),and the contents of neurotransmitters were de-termined by the LC-MS /MS method in FXR knockout (KO)female mice and their wild-type controls.Re-sults FXR KO mice showed significantly increased immobility time in FST (P <0.01 ),and it showed in-creased tendency to enter the open arms in EMPT (P<0.01 ).The number of probing the open arms by FXR KO mice was more than that of the controls.Mo-reover,in SIT,FXR KO mice had remarkably in-creased sniffing interactions with the stranger mouse in the same cage (P <0.01 ).But in PAT,the latency for FXR KO mice to enter the dark chamber on the test day and the number of FXR KO mice to enter the dark chamber didn’t differ from those wild-type mice.In hippocampus,the contents of GABA,Glu,and NE were decreased prominently in FXR KO mice (P <0.05,P <0.05 and P <0.01 ,respectively)as well as the ratio of GABA to Glu (P <0.05).But in pre-frontal cortex,none of the neurotransmitters examined showed any difference between FXR KO mice and their controls.Conclusion FXR may be involved in main-tenance of the homeostasis of neural transmission in the central nervous system,thereby influences the emotion-al and social behavior in animals.

ObjectiveTo discuss the relationships among spastic paralysis and motor function, balance function and other clinical variables after stroke.MethodsAssessed the clinical spastic index of hemiplegic lower limbs with CSI scale, motor function with Fugl-Meyer Assessment, and balance function with Berg Equilibrium Scale, respectively. And then analyzed the relationship between clinical spasm index with motor function, balance function of the hemiplegic lower limbs with Pearson correlation analysis. Finally, ascertained which was the most important factor affecting the clinical spasm index of spastic lower limbs with stepwise regression analysis.ResultsThere is negative correlation between clinical spasm index with motor function and balance function, respectively. Tendon reflex, muscular tension and clonus are the deciding factors to motor function(P<0.05) and balance function(P<0.05) of the hemiplegic lower limbs.ConclusionThe clinical spasm index of hemiplegic limbs can affect the recovery of motor function and balance function significantly. So, assessing and improving the clinical spasm index of paralytic lower limbs can optimize the rehabilitation program to stroke patients.