Intestinal dysmotility symptoms,such as abdominal pain,diarrhea and tenesmus are frequently seen in patients with ulcerative colitis( UC). Interstitial cells of Cajal( ICC)has been accepted as a therapeutic target for gastrointestinal motility disorders and regulation of autophagy might be a potential strategy for various diseases. Study on relationship between intestinal dysmotility in UC and ICC autophagy and the intervention mechanism of related drugs will benefit the controlling of disease activity,relieving of dysmotility symptoms and improving of quality of life in UC patients. In this review article,the possible relationship between intestinal dysmotility in UC and ICC autophagy,as well as the possibility of regulating ICC autophagy as a treatment strategy for UC intestinal dysmotility were summarized.

Objective To investigate the differential diagnosis value between breast phyllode tumor and breast fibroadenoma by comprehensive analysis of multiple parameters on color Doppler ultrasonography.Methods The manifestations or characteristics on color Doppler ultrasonography were analysed in 17 cases with breast phyllode tumor and 92 cases with breast fibroadenoma.Results Thinned skin was found in 3 cases of phyllode tumor of the breast(17.65%).Cystic areas were observed in 11 cases with phyllode tumor of the breast(64.71%).Varication inside the tumor was found in 12 cases with phyllode tumor of the breast(70.59%).Conclusions Thinned skin,cystic areas and varication inside the tumor are the important indicators in differential diagnosis for breast phyllode tumor from breast fibroadenoma,which may improve the accuracy of diagnosis for phyllode tumor of the breast.

OBJECTIVE: To study the sedative and antistress action of Shenqiwuweizi capsule. METHODS: The sedative and hypnotic experiments were made to observe the action of Shenqiwuweizi capsule on the mice's sleep induced by pentobarbital sodium at subthreshold dosage or hypnotic dosage. The swimming and hypoxia tolerance experiment were performed to observe the effects of Shenqiwuweizi capsule on the swimming time and hypoxia tolerance time in mice. RESULTS: Shenqiwuweizi capsule could obviously prolong the sleeping time of mice induced by pentobarbital sodium, increase the number of sleeping animals caused by pentobarbital sodium at subthreshold dosage, and significantly prolong the time of swimming and hypoxia tolerance in mice. CONCLUSION: Shenqiwuweizi capsule had sedative and anti-stress action.

Objective To investigate the myelination of rat brain at different developmental stages.Methods Luxol fast blue staining,immunohistochemistry and Western blotting were applied to determine the distribution and alternation of myelin sheath in the brains of SD rats at different developmental stages.Results Negative LFB and MBP staining were shown at the stages of embryonicage 18 d(E18),postnatal age 0 d(P0) and P2.At P7,the corpus callosum was weakly stained by LFB.The positive stain of LFB and MBP occurred in P15 on the corpus callosum.With the development going on,the stain turned out stronger,especially in P30,which was similar with that in P90 and P720.The results of Western blot analysis showed the expression of MBP in rat brain was gradually increased with the development of rat brain.Conclusion The myelination starts before P15 in rat brain and becomes mature in P30.The optimal observation time of myelin is 30 d born after.

Objective To develop a visible detection system prepared by protein microarrays which was based on GoldMag particles-labeled technique and compare the results of detection using the protein which was labeled with GoldMag particles and colloidal gold.Methods Human IgG was printed on the glass slides modified with epoxy groups,and goat anti-human IgG conjugated with GoldMag particles and colloidal gold respectlively was then added on the slide.The glass slides were incubated,and then the black images of microarray spots were produced by immuno-gold-silver staining method and observed by naked eyes and recorded with common flatbed scanner.Results The high signal-to-noise ratio could be obtained when the optimized procedures of GoldMag particles-labeling probe were introduced to the protein chip.The conditions of optimum assay were as follows:the spotting concentration of human IgG was 0.2 mg/ml,the glass slides were incubated at 37 ℃ for 2 hour to immobilize human IgG,and the silver enhancement time was 10 min-15 min.Parallelly,the optimized conditions for colloidal gold were as follows:the spotting concentration of human IgG was 0.1 mg/ml,the slides were incubated at 37 ℃ for 1 hour to immobilize human IgG,and the silver enhancement time was 15 min-20 min.Conclusions GoldMag particles-labeled protein technique is comparable to colloidal gold in applying to protein microarrays.The method is considerably simple and practical,and the protein labeled by GoldMag particles could be quantitative.

Objective:To explore the clinical effect of simultaneous whole-course hyperfractionated intensity-modulated radiation therapy combined with chemotherapy and nimotuzumab in the treatment of advanced nasopharyngeal carcinoma.Methods:A total of 64 patients with advanced nasopharyngeal carcinoma who were admitted to Kaiping Central Hospital of Guangdong Province from June 2017 to January 2019 were selected and divided into the observation group and control group according to the random number table method, with 32 cases in each group. Both groups were given chemotherapy and nimotuzumab on the basis of radiotherapy. The observation group received simultaneous whole-course hyperfractionated intensity-modulated radiation therapy, and the control group received conventional fractionated intensity-modulated radiation therapy. The short-term efficacy, Karnofsky score, overall survival rate, progression-free survival rate, acute radiation reaction, and late radiation injury in the two groups were observed.Results:Six months after radiotherapy, the efficient rate of the observation group was higher than that of the control group [96.9% (31/32) vs. 75.0% (24/32), χ2 = 6.335, P < 0.05]. At the end of radiotherapy and 3 months after the end of radiotherapy, the Karnofsky scores of the observation group were higher than those of the control group, and the differences were statistically significant [(75±3) points vs. (71±3) points, t = 5.891, P < 0.05; (80±4) points vs.(77±4) points, t = 3.201, P = 0.002]. All patients were well tolerated, no grade 4 acute radiation reaction was observed, and radiotherapy was completed as planned. The incidence rate of oral mucosal reaction in the observation group was lower than that in the control group [21.9% (7/32) vs. 50.0% (16/32), χ2 = 5.497, P < 0.05]. The incidence rates of severe dry mouth and neck soft tissue fibrosis in the observation group were lower than those in the control group [6.2% (2/32) vs. 28.1% (9/32), χ2 = 5.379, P = 0.043; 3.1% (1/32) vs. 21.9% (7/32), χ2 = 5.143, P < 0.05]. The follow-up time was 14-20 months, and the median follow-up time was 17 months. There was no statistical difference in overall survival time between the two groups ( χ2 = 0.553, P = 0.557). The progression-free survival time of the observation group was better than that of the control group ( χ2 = 3.954, P = 0.044). Conclusion:The simultaneous whole-course hyperfractionated intensity-modulated radiation therapy combined with chemotherapy and nimotuzumab are effective in the treatment of advanced nasopharyngeal carcinoma, and the adverse reactions can be tolerated.

OBJECTIVETo compare and classify the samples of Angelica sinensis from 36 different areas in Gansu province.

METHODThe HPLC was used to detect samples, and the computer aided similarity evaluation was used to analyze the fingerprints. Similarity combined with principal component analysis (PCA) and multidimensional pattern recognition of Euclidean distance were used to compare and classify the samples of A. sinensis in different areas.

RESULTIt was found that the quality of A. sinensis is closely related to the growth environment.

CONCLUSIONThis method could be used to classify the samples of A. sinensis from a variety of sources.

Objective To study the change of the renal endogenous hydrogen sulfide (H2 S) pathway in the development of salt-sensitive hypertension in Dah1 rats.Methods Sixteen male Dah1 rats,in accordance with the random number table,were randomly divided into control group and high salt group fed with diet containing 80 g/kg NaCl.After 8 weeks,24 h urine sodium,24 h urinary protein,serum creatinine and serum urea were measured.The microstructural and ultrastructural changes in kidney were observed with light microscope and electronic microscope.The serum and kidney H2S contents were determined by using sulphur-sensitive electrode method.The mRNA levels of cystathionine β-synthase(CBS),cystathionine γ-lyase(CSE) and mercaptopyruvate sulfurtransferase(MPST) in renal tissue were determined by means of real-time polymerase chain reaction(RT-PCR).The protein expressions of CBS,CSE and MPST in renal tissue were detected by using Western blot.Results Compared with control group,high salt group rats had a significant rise in blood pressure,declined renal function,damaged renal structure,segmental glomerular sclero sis,small artery wall thickening,and occlusion of the lumen.Moreover,the endogenous H2S pathway in kidney of Dah1rats with high salt diet was downregulated markedly,demonstrated by the decreased serum and kidney H2S content,the reduced renal CBS,CSE and MPST mRNA expressions and CBS protein expression of kidney tissue.Conclusion The endogenous H2S/CBS pathway is downregulated during the development of salt-sensitive hypertension in Dah1 rats.

Aim Toestablishanexcellentratasthmamodel from using OVA+pertussis sensitized, OVA sensitized and per-tussissensitizedrats.Methods Thethreemethodswereusedto sensitize rats;methacholine bronchial provocation tests were per-formed to determine airway hyperresponsiveness;bronchoalveolar lavage fluid ( BALF) was prepared after the animals were chal-lenged by nebulized antigen. The differential white cell count in BALF was performed, and lung tissue was detected by morpho-logicalanalysis.Results AllofOVA+pertussissensitization,OVA sensitization and pertussis sensitization could deteriorate lung function, increase inflammatory cells and cause pathological change, and OVA + pertussis sensitized rat model had better effect than OVA sensitized and pertussis sensitized rat models. Conclusion OVA+pertussissensitizationandOVAaerosolisa successful rat asthma model.

Objective To determine the relationship of cytochrome P-450 epoxygenase metabolites of arachidonic acids with impaired endothelium-dependent vasorelaxation in the healthy elderly. Methods A case-control study was employed.The study enrolled 60 healthy young adults (group A) and 60 healthy senior citizens (group B) of Han population in Shanghai. Serum contents of 14,15-dihydroxyeicosatrienoic acid (14,15-DHET) (a stable metabolite of 14,15-EET), 6-Kote-PGF1a (a stable metabolite of prostaglandin) and TXB2 (a stable metabolite of thromboxane A2) were measured using ELISA kits. The endothelium-dependent vasorelaxation (EDV) and endothelium-independent vasorelaxation (NEDV) in brachial arteries were determined by color Doppler ultrasound. Results Compared with group A, group B had significant higher levels of hemoglobin A1c, triglyceride and cholesterol levels (P＜0.01), and significant lower levels of 14,15-DHET and 6-Kote-PGF1a (P＜0.001), leading to increased values of TXB2/6-Kote-PGF1a and TXB2/14,15-DHET. There was bigger basal interior diameter of brachial arterials with reduced EDV and NEDV response (P＜0.01 and P＜0.05, vs. group A respectively) in group B. Moreover, the age was negatively correlated with 14,15-DHET and TXB2/14,15-DHET. Conclusions Our results indicate that the impaired EDV and NEDV in aging are associated with reduced production of arachidonic acid metabolites through cytochrome P-450 epoxygenase pathway and cyooxygenase pathway of endothelium in the healthy elderly.