Objective To study the cardioprotective function of Zhurihen dripping pills in experimental animals.Methods By hypoxia tolerance model and isoproterenol hydrochloride induced acute hypoxia model, measuring the time of death in mice.For rat serum LDH, CK, SOD and MDA were measured to observe protective effect of Zhurihen dripping pills on vasopressin-induced acute myocardial ischemia model.The effect of Zhurihen dripping pills on latency and durations were observed in acute arrhythmia induced by inhaled chloroform – epinephrine rabbits model.Results The hypoxia tolerance in mice and myocardial hypoxia tolerance significantly improved by Zhurihen dripping pill, and prolonged the survival time in mice.The serum level of LDH, CK, SOD and MDA significantly improved, and protected the impaired myocardial cell in rats.The latent period of arrhythmia was significantly prolonged and duration of arrhythmia was shortened in rabbits.Conclusion Zhurihen dropping pills an improve myocardial oxygen deficiency, anti-arrhythmia effect and protect myocardial cells.

Objective: To evaluate the efficacy and the adverse reactoions of cetuximab combined with cheomotherapy (oxapliplatin or iriticon) for metastastic colorectal cancer. Methods: A total of 22 patients with metastastic colorectal cancer were treated with cetuximab combined with FOLFIRI or mFOLFOX6. The patients received cetuximab at an initial dose of 400 mg/m~2 intravenously on day 1 in the first cycle, followed by weekly infusion of 250 mg/m~2; FOLFIRI: irinotecan 180 mg/ m~2 on day 1, CF 400 mg/m~2, 5-FU bolus 400 mg/m~2, 5-FU infusion 2400 mg/m~2 over 46 hours, once every 2 weeks; mFOLF-OX6: oxaliplatin 85mg/m~2 on day 1, CF 400 mg/m~2, 5-FU bolus 400 mg/m~2, 5-FU infusion 2400 mg/m~2 over 46 hours, once every 2 weeks. The immediate response, complete response and partial response and changes in tumor marker levels were observed. Results: There were 12 PR cases, 6 SD cases, and no CR cases. The rate of (CR+PR) was 57.1% and the rate of (CR+PR+SD) was 85.7%. The adverse reactions during the theraphy were skin toxicity and neutropenia. Conclu-sion: Safe and effective for metastastic colorectal cancer, cituximab combined with oxaliplatin or irinotecan can increase the resectabiliy rate and prolong patient survival.

Objective To evaluate complete mesocolic excision in laparoscopy-assisted right hemicolon carcinoma radical resection. Methods Laparoscopy-assisted right hemicolon carcinoma radical resection with complete right-side mesocolic excision was performed in 36 cases between June 2010 and July 2011 at Zhongshan Hospital,Xiamen University. Results The operations were completed successfully without conversion to open surgery.The mean operative time was (134 ±22) min.The blood loss was (95 ±53 ) ml.The median number of total lymph nodes removed was 15.7.The average time for passage of flatus was (3.1 ± 1.2) d.The postoperative complications were observed in 6 of 36 cases (17％) including lymphatic fistulas in 4 patients,pulmonary infection in 1 patient and postoperative bleeding in 1 case.Conclusions Laparoscopy-assisted complete right-side mesocohc excision can be successfully performed for right hemicolon carcinoma,and the lymphoid tissue could be eliminated maximally.The long-term results need further evaluation.

By using Doppler sensor and pressure sensor, the cerebrovascular stroke detector can be used to measure the blood flow velocity and blood pressure of the carotid artery. In this study, a variety of signal conversion and isolation processing techniques are proposed for processing and feature extraction of the output signals from the sensors. Finally, effective signal output waveforms that can be used to evaluate the cerebrovascular hemodynamics index (CVHI) are obtained, and the sound signal outputs that can reflect the change characteristics of blood flow velocity and blood pressure signals are generated, which realizes the application functional requirements of the detector.
Blood Flow Velocity/physiology* ; Cerebrovascular Circulation/physiology* ; Hemodynamics/physiology* ; Humans ; Stroke ; Technology

Objective:To investigate the effects of applying Stent Boost Subtract (SBS) technique during percutaneous coronary intervention in patients with complex coronary lesions.Methods:200 patients with coronary artery disease (CAD) who hospitalized in the department of cardiology in Guangzhou First People′s Hospital from June 2018 to June 2020 were enrolled. The coronary lesions of all patients were corresponding to B2 or C type suggested by American Heart Association (AHA)/American College of Cardiology (ACC) according to coronary angiography and treated with percutaneous coronary intervention (PCI). Patients were randomly divided into SBS group ( n=82, SBS technique was applied during PCI) and IVUS group [ n=118, intravascular ultrasound (IVUS) was applied during PCI]. After stent implantation, quantitative coronary angiography (QCA) automatic analysis system was used to measure the related parameters of stent diameter (including the minimum, maximum and mean value of stent diameter) and calculate the stent eccentricity index. During PCI, stent eccentricity index, post-stent expansion, poorly positioned stent with open lesions, failure of overlapping stent with long lesions, mean cumulative dose (CD), product of total dose area (DAP), X-ray time, operation time and operation cost of each PCI were recorded in the two groups. Patients were followed up for 18 months after PCI, and the occurrence of adverse cardiovascular events (MACE) was recorded during the follow-up period, and the cumulative survival rate without MACE was compared between the two groups. Results:There were no statistically significant differences between the two groups in stent eccentricity index, proportion of guided stent expansion, proportion of poorly positioned stent with open lesions, proportion of stent failure to overlap, with statistically significant difference[(0.12±0.04) vs (0.10±0.03); 80.49% vs 85.49%; 2.44% vs 2.54%; 1.22% vs 2.54%, all P>0.05]. There were no significant differences in CD, X-ray time and DAP in SBS group compared with IVUS group [(1 394.18±42.29)Gy/cm 2 vs (1 391.82±45.06)Gy/cm 2; (18.79±3.01)min vs (18.95±3.12)min, (100.24±5.70)Gy/cm 2 vs (99.47±5.93)Gy/cm 2; all P>0.05]. The operation time in SBS group was shorter than that in IVUS group [(70.91±6.51)min vs (73.89±8.95)min, P<0.05], and the operation cost was less than that in IVUS group [(2.98±0.86)ten thousand yuan vs (3.85±0.81)ten thousand yuan, P<0.05]. After 18 months of follow-up after PCI, Kaplan-Meier survival analysis showed that there was no significant difference in MACE event-free survival between SBS group and IVUS group (91.46% vs 94.07%, Log Rank=0.480, P=0.489). Conclusions:SBS is a kind of convenient and effective technique in guiding PCI in patients with complex coronary lesions without increasing operation time and radiation dose, which can achieve the same effect as IVUS guidance.

Objective: This present study aimed to investigate the relationship between working hours and anxiety/depression mood of medical staff in China during COVID-19 epidemic. Methods: The cross-sectional interview study was conducted during the period between February 14th and February 29th, 2020. A total of 291 Chinese medical professionals were recruited from 4 cities and participated in the study. Results: In 291 participants, 116 (40.0%) medical staff experienced anxiety and 151 (51.8%) underwent depressed mood. In male, the level of GAD-7 and PHQ-9 scores increased with the elevation of working hours per day (WHPD) (β=0.579, p=0.003 and β=0.943;p=0.001) respectively. In female, nonlinear relationship mode was demonstrated. The levels of GAD-7 and PHQ-9 scores increased with the elevation of working hours when it was above 5 hours (β=1.432; p<0.001 and β=1.177; p<0.001), but it did not have a significant association with WHPD when it was less than 5 (p>0.05). Conclusion During the COVID-19 epidemic, we found a strong correlation between the psychological mood and WHPD. The correlation followed different modes in male and female medical workers. Enforcing an upper time limit of WHPD may help decrease the risk of pandemic-related psychological problems in medical workers.

Objective: This present study aimed to investigate the relationship between working hours and anxiety/depression mood of medical staff in China during COVID-19 epidemic. Methods: The cross-sectional interview study was conducted during the period between February 14th and February 29th, 2020. A total of 291 Chinese medical professionals were recruited from 4 cities and participated in the study. Results: In 291 participants, 116 (40.0%) medical staff experienced anxiety and 151 (51.8%) underwent depressed mood. In male, the level of GAD-7 and PHQ-9 scores increased with the elevation of working hours per day (WHPD) (β=0.579, p=0.003 and β=0.943;p=0.001) respectively. In female, nonlinear relationship mode was demonstrated. The levels of GAD-7 and PHQ-9 scores increased with the elevation of working hours when it was above 5 hours (β=1.432; p<0.001 and β=1.177; p<0.001), but it did not have a significant association with WHPD when it was less than 5 (p>0.05). Conclusion During the COVID-19 epidemic, we found a strong correlation between the psychological mood and WHPD. The correlation followed different modes in male and female medical workers. Enforcing an upper time limit of WHPD may help decrease the risk of pandemic-related psychological problems in medical workers.

Objective:Biological markers of the ventrolateral orbitofrontal cortex(vlOFC)involved in pain regula-tion were screened.Methods:Chronic inflammatory pain was induced in male C57BL/6J mice by injection of complete Freund's adjuvant(CFA)into the left posterior plantar.Paw withdrawal threshold(PWT)and paw withdrawal latency(PWL)were detected to evalue hyperalgesia.Transcriptome sequencing was performed on fresh tissue from vlOFC of mice after behavioral tests.The differentially expressed genes(DEGs)were screened by bioinformatics method,and their biological functions and pathways were enriched.Results:Compared with the PBS group,the left hindpaw me-chanical pain threshold and the paw withdrawal latency caused by heat pain were significantly reduced in the CFA group(P＜0.001).The DEGs of vlOFC in the two groups were 497,of which 143 were up-regulated and 354 were down-reg-ulated.Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGGs)analysis showed that:In chro-nic inflammatory pain model mice,DEGs of vlOFC were mainly manifested in biological processes such as organic cation transport,neurotransmitter transport,and regulation of cytoplasmic calcium ion concentration.It is related to G protein-coupled receptors(GPCRs),neuropeptides and ammonium transport.DEGs mainly focuses on neuroactive ligand-receptor interactions,cytokine-cytokine receptor interactions,and cAMP signaling pathways.Reactome functional en-richment analysis showed that the pathway with the highest number of DEGs enriched and the lowest P value-adjusted was GPCRs ligand binding.Conclusion:Ion transport,neurotransmitter transport and binding,and GPCRs-related ac-tivities in vlOFC are involved in the regulation of chronic inflammatory pain.

Objective To investigate the correlations of risk factors of age,delirium-inducing factors,dementia,delirium severity,and disease severity with the prognosis of elderly patients with delirium.Methods A total of 112 patients aged 70 years and older with initial onset of delirium during hospital stay were enrolled in this study.They were hospitalized in Dalian Municipal Central Hospital from Jan.2013 to Dec.2015.The severity of delirium was evaluated by delirium rating scalerevised-98(DRS-R-98).The acute physiology and chronic health enquiry(APACHE-Ⅱ)score and the sequential organ failure assessment(SOFA)score were recorded within 48 h after delirium onset.After periods of hospitalization of Jan.2013 to Dec.2015,patients were followed up until 31 Dec 2017.Correlations of age,delirium-inducing factors and dementia with survival time and long-term viability after delirium onset were statistically analyzed.Results Age,delirium-inducing factors,cognitive impairment,duration of cognitive impairment,type of dementia,and delirium severity had no correlations with the lifetime and long-term viability in patients with delirium.While,APACHE Ⅱ score for assessment of severity degree of delirium(P ＜0.001,r =-0.390) and SOFA score(P ＜0.001,r=-0.638)were negatively correlated with the lifetime in patients with delirium.SOFA score (P =0.004) and delirium recurrence (P ＜ 0.001) were significantly correlated with the long-term viability in patients with delirium.Conclusions The severity and recurrence of delirium are strongly correlated with the lifetime and quality of life in patients with delirium.Compared with APACHE Ⅱ score,SOFA score may have a more important clinical application value in predicting the prognosis of patients with delirium.

Objective To explore the application value of automatic cytomorphological analyzer in the morphological analysis of white blood cells(WBC)in peripheral blood.Methods A total of 306 venous blood samples from inpatients and outpatients were randomly selected and prepared with automatic cytomorphological analyzer for WBC pre-classification.The differences between automatic cytomorphological analyzer counting,automatic blood cell analyzer counting and manual counting were compared,and the correlation between automatic cytomorphological analyzer and manual counting method was analyzed.Results Compared with the other two methods,the automatic cytomorphologi-cal analyzer was able to detect more types of WBC,especially abnormal cells.There were no signifi-cant differences between automatic cytomorphological analyzer and manual counting method for 6 ma-ture WBC types(band neutrophils,segmented neutrophils,lymphocytes,monocytes,eosinophils,and basophils),immature cells at different stages and atypical lymphocyte counts(P＞0.05).Re-sults of the 6 mature WBC types counted by the automatic cytomorphological analyzer and manual counting had favorable correlations(r＞0.8).Conclusion The automatic cytomorphological analyzer can classify more types of WBC,provide WBC counting results that are highly consistent with manual microscopy,and the counting results of the two methods have a good correlation.