Presence of multiple abnormal immunologic markers is an independent prognostic factor of diffuse large B-cell lymphoma / 医学前沿

Autoimmune diseases (ADs) increase the risk of non-Hodgkin's lymphoma and contribute to poor prognosis of patients. However, the association between immunologic markers and clinical outcome has rarely been investigated. This study aims to analyze the prognostic value of pretreatment immunologic markers in newly diagnosed patients with diffuse large B-cell lymphoma (DLBCL). We retrospectively reviewed the data on 502 patients with DLBCL treated in our institution from January 2013 to March 2018. Survival functions were estimated using Kaplan-Meier method and Cox regression model. The 3-year progression free survival (PFS) and overall survival (OS) rates were 70.2% and 80.9%, respectively, and the complete remission (CR) rate was 78.1%. Among the patients, those with multiple ( ⩾ 3) abnormal immunologic markers had significantly shorter 3-year PFS (52.7% vs. 77.3%, P 60 years for OS (P = 0.014). In conclusion, the immunologic status was closely related to lymphoma progression, and this study provides new insights into the risk stratification of patients with DLBCL.

Preliminary experience of dual-port laparoscopic distal gastrectomy for gastric cancer / 中华胃肠外科杂志

OBJECTIVE@#To evaluate the short-term efficacy and cosmetic effect of dual-port laparoscopic distal gastrectomy (DPLDG) for gastric cancer.@*METHODS@#Thirty consecutive patients underwent DPLDG at the Department of General Surgery, Nanfang Hospital from November 2016 to August 2018.@*INCLUSION CRITERIA@#(1) age of 18 to 75 years; (2) primary gastric adenocarcinoma confirmed pathologically by endoscopic biopsy; (3) tumor located at middle-low stomach and planned for distal gastrectomy; (4) cT1b-2N0-1M0 at preoperative staging; (5) tumor diameter ≤3 cm; (6) US Eastern Cancer Cooperative Group(ECOG) score 0 to 1 points; (7) American Society of Anesthesiologists grade I to II; (8) perioperative management based on enhanced recovery after surgery (ERAS) principle.@*EXCLUSION CRITERIA@#previous upper abdominal surgery (except laparoscopic cholecystectomy), history of other malignant disease, and body mass index ≥30 kg/m². A self-developed single-incision, multiport, laparoscopic surgery Trocar (Surgaid Medical, Xiamen, China, comprising 3 channels for observation, main surgeon and assistant surgeon) was placed through a 3-4 cm incision under or at the left side of the umbilicus. An additional 5 mm Trocar was inserted under the rib margin of the right clavicle to serve as the secondary operating hole and the position of the drainage tube. The liver was suspended to expose the surgical field clearly. Surgical procedure was as follows: conventional laparoscopic instruments were used. After entering the omental sac, dissection was performed along the transverse colon to the spleen flexure. Left gastroepiploic vessels were identified and then ligated at the root. No.4sb lymph nodes were dissected. The No.4d lymph nodes were dissected along the greater curvature of the stomach. Then the dissection was continued rightward to the hepatic flexure to separate mesogastrium and mesocolon. The right gastroepiploic artery was ligated at the root to allow the removal of No.6 lymph nodes. The duodenal bulb was transacted by liner stapler, the right gastric artery was ligated at the root and the No.5 lymph nodes were removed. Peritoneal trunk, common hepatic artery, splenic artery and left gastric artery and vein in posterior pancreatic space at upper pancreas were separated, then left gastric vessels were ligated, and No.9, No.8a, No.11p and No.7 lymph nodes were dissected. The left side wall of portal vein was exposed and No.12a lymph nodes were removed. No.1 and No.3 lymph nodes were dissected along the lesser curvature. The stomach corpus was transacted by liner stapler at 4-5 cm proximal end of the tumor. Roux-en-Y anastomosis or Billroth II anastomosis was performed in the cavity. A drainage tube was placed near the gastrojejunal anastomosis through the right upper abdomen secondary operating hole. Postoperative short-term efficacy (operation time, blood loss, 5-port conversion rate, open conversion rate, number of retrieved lymph nodes, time to postoperative first flatus, time to first soft diet intake, time to removal of drainage tube, postoperative hospital stay, postoperative analgesics use, and postoperative 30-day complication rate) and cosmetic scale (questionnaire: degree of satisfaction with scar, description of scar, grade of scar; total score ranged from the lowest 3 to the highest 24; the higher the better) were evaluated in all 30 patients.@*RESULTS@#No serious complication and death were observed intraoperatively. The mean operative time was (197.8±46.9) minutes. The median blood loss was 30 ml (quartile 31.25 ml). The mean number of retrieved lymph node was 38.7±14.1. Five-port conversion rate was 3.3% (1/30), and no open conversion occurred. Mean time to postoperative first flatus, time to first soft diet intake, time to removal of drainage tube and postoperative hospital stay were (45.3±18.9) hours, (87.6±35.6) hours, (101.8±58.0) hours and (6.1±2.1) days, respectively. Twenty-four (80%) of patients had no additional analgesics use. The postoperative complication rate within 30 days was 16.7% (5/30). Postoperative overall cosmetic score was 22.1±1.3, and cosmetic score of 96.7%(29/30) of patients was 18 to 24.@*CONCLUSION@#DPLDG is safe and feasible with advantages of faster postoperative recovery, reducing pain and better cosmetic outcomes.

Research advance on the interaction of pharmaceutical molecules with target proteins / 药学实践杂志

The function of drugs is based on the interaction between drug molecules and their targets.Qualitative analysis and quantitative detection of drug-target interactions run through the whole process from drug discovery to clinical practice.After decades of development, the study methods on the interaction between drug molecules and target proteins have been transformed from traditional biochemical experiments to a diversity of efficient and accurate technology systems supported by advanced molecular biology and biophysics theory.In this review, representative methods and techniques were introduced from aspects of target discovery and validation, affinity determination, interaction sites and structural analysis, which might provide some references for drug discovery and mechanism exploration.

Experiences in the treatment of tendinous mallet finger / 中华整形外科杂志

Objective@#To explore the effect of reconstructing the finger extension function by using partial flexor digitorum profundus tendon transposition.@*Methods@#Twelve patients were treated by using the partial proximal end of the tendon core of flexor digitorum profundus tendon regionⅠand part of region Ⅱ to cut off to the base of the distal digital phalanx, and puncturing at the end of the phalanx with a 2.0 drill. The tendon strips were pierced to the back overlap sutured to the proximal end of the avulsion of the extensor tendon .@*Results@#In 3-18 month follow-up, the average follow-up duration was 10.6 months. According to Dargan function evaluation method, 12 cases were excellent and one case was poor.@*Conclusions@#The method of reconstructing the extensor tendon by partial flexor deep tendon is a reliable method for the treatment of Mallet finger.

Effect of 5-FU on the expression of SHP2 gene in colorectal cancer cells RKO / 药学实践杂志

Objective To investigate the effect of 5-FU on the expression of SHP2 gene in colorectal cancer cells RKO . Methods The human colorectal cancer cell line RKO of logarithmic growth phase was cultured 48 h with 5-FU .The expression of SHP2 was observed by immunofluorescence and Western blotting ;siSHP2 which specifically inhibits the expression of SHP2 was transfected into RKO cells and cultured 48 h with 5-FU .The cell absorbance (A) values were measured with CCK8 and apoptosis was determined by flow cytometry .The sensitivity of RKO to 5-FU and the effect of 5-FU on apoptosis of RKO cells were observed .Results The expression of nuclear protein of SHP2 was improved remarkably after colorectal cancer cell RKO was cultured 48 h with 5-FU .The sensitivity of RKO cells to 5-FU and the cell apoptosis rate induced by 5-FU were decreased after siSHP2 transfection .Conclusion 5-FU exerts anti-cancer activity possibly due to its promoting the apoptosis of RKO cells by influencing the expression of SHP2 .

Anti-alcoholism effects of Puerariae lobatae radix, Puerariae lobatae flowers, Hovenia dulcis thunb mixture on acute alcoholism mice / 药学实践杂志

Objective To study the anti-alcoholism effect of Puerariae lobatae radix, Puerariae lobatae flowers, Hovenia dulcis thunb mixture on acute alcohol poisoning in mice.Methods A model of acute alcoholism in mice was established by intragastrical administration of alcohol.The best ratio of each component in the mixture was identified by observing the sobering effect of the mixtures on mice.The best ratio mixture was divided into low dose group and high dose group.The mice tolerance time, drunken time, the ethanol concentration in the blood and the alcohol dehydrogenase activity in liver were measured to study the anti-alcoholism effect of the mixture.Results The Puerariae lobatae radix, Puerariae lobatae flowers, Hovenia dulcis thunb mixture not only increased the tolerance time and decreased the drunken time of mice, but also significantly reduced the ethanol concentration in blood and improved the activity of alcohol dehydrogenase in liver.Conclusion This study found that Puerariae lobatae radix, Puerariae lobatae flowers, Hovenia dulcis thunb mixture has anti-alcoholism effect on acute alcoholism in mice.

Research progress of TNF-α and its receptors in rheumatoid arthritis / 药学实践杂志

The TNF-α signaling pathway is a valuable target in the therapy of autoimmune diseases.TNF-α binds to two different receptors and exerts anti-inflammatory and anti-rheumatic effects.The drugs of anti-TNF-α are widely used in rheumatoid arthritis, such as infliximab, adalimumab etc.These TNF blockers have become invaluable tools to reduce damages induced by inflammation and allow recovery of the affected tissues.Unfortunately, this therapy has some drawbacks, such as increasing the risk of infection, malignancy and the incidence rate of new auto-immune diseases.Some of these effects are caused by the unwanted abrogation of beneficial TNF signaling.Therefore, elective antagonism of TNFR is an important approach to alleviate the side effects of TNF-α antibody.The medications specifically targeting the TNFR might have better applicability and safety.In this article, research progresses of TNF-α and its receptors in the therapy of rheumatoid arthritis were reviewed.

The research status of the drug therapy for inflammatory bowel disease / 药学实践杂志

Research on the inflammatory bowel disease(IBD) is a hot topic in the field of digestive system disease.IBD mainly consists of ulcerative colitis(UC) and Crohn′s disease(CD).The pathogenesis of IBD has not been fully understood.So far, there is no specific medication for IBD.A number of novel medicines and preparations have emerged with the research progress on the pathogenesis of IBD.The research status on IBD drug therapy is briefly reviewed in this paper.

Preparation of DNA-loaded chitosan nanoparticle vaccine / 药学实践杂志

Objective To study and optimize the preparation condition of pVAX1‐wapA‐loaded nanoparticles and deter‐mine the transfection efficiency .Methods The related effects of the crucial factors for the formation of nanoparticles:concen‐tration of chitosan and TPP ,pH value ,N/P ratio were studied by single‐factor experiment ,with nanoparticles size and zeta potential as index .Cell transfection test was carried out to indicate that enhancement of cell transfection efficiency of nano‐car‐rier .Results Nanoparticles loaded DNA vaccine were nearly spherical shape with uniform particle size chitosan nanoparticle (CS) ,(219 .2 ± 18 .2) nm ;quaternary ammonium chitosan nanoparticles(CSTM) ,(222 .5 ± 15 .6) nm .Zeta potential of CS and CSTM was (24 .7 ± 3 .5) mV ,(19 .6 ± 1 .2) mV and encapsulation efficiency was 91 .24% ,87 .66% ,respectively .CSTM nano‐particle could enhance cellular uptake of pVAX1‐wapA obviously .Conclusion CSTM nanoparticle was proved to be an efficient DNA vaccine delivery vector .

Application of flexible ambrosia for body weight control among youths / 军事医学

Objective To evaluate whether flexible ambrosia,by which people can take special prebiotics instead of dining to alleviate their sense of hunger is a healthy, safe and effective weight loss method by analyzing the effects of flexible ambrosia on body weight, body composition, physiological and chemical indexes of young volunteers.Methods Young volunteers were tested on flexible ambrosia for seven days using special prebiotics instead of normal food.Body weight, waist circumference, body composition and blood biochemical indexes ( blood pressure, blood glucose, liver function, renal function, blood electrolyte, and blood lipid ) were measured and recorded before and after the test respectively.The volunteers′subjective feelings ( hunger, energy, fatigue, etc) were recorded during the test every day by way of e-form records.Results All volunteers of the flexible ambrosia test reduced their body weight, body mass index (BMI), waist circumference, visceral fat index (VAI) and body fat rate (Fat,%)significantly (P<0.01)in seven days, while the body water rate, muscle mass, body protein and bone did not significantly change or rise.There was no significant functional abnormity of the liver kidney, or blood electrolytes and blood lipid.All volunteers were in good physical condition, high-spirited and slept well, high quality sleep, without any obvious hunger and fatigue response in seven days.Conclusion Flexible ambrosia seems to be a healthy, safe and effective method, and provides an important scientific basis and reference for weight loss in the military.

Predictive value of plasma N-terminal-pro-brain natriuretic peptide in weaning patients from mechanical ventilation / 中华急诊医学杂志

Objective To evaluate the predictive value of N-terminal-pro-brain natriuretic peptide (NT-proBNP) in weaning patients from mechanical ventilation (MV).Methods Data of 42 patients supported with MV in intensive care unit (ICU) admitted to the Rui Jin Hospital from January through December in 2014 were retrospectively analyzed,and the causes for MV were recorded.According to the outcomes of weaning from MV after 48 hours,the patients were divided into two groups namely success group and failure group.Comparisons of fluid balance in 72 hours before spontaneous breathing trial (SBT),and comparisons of NT-proBNP1 levels at admission,NT-proBNP2 levels before SBT,NT-proBNP3 levels after 48 hours after SBT between two groups were carried out.And the receiver operating characteristic (ROC) curve for predicting weaning rate was plotted to find the optimal cut-off point of NT-proBNP2.Results In the total of 42 patients,there were 27 cases in success group and 15 cases in failure group.There were not statistically differences of NT-proBNP1 levels between success group and failure group (P =0.121).However,the NT-proBNP2 levels and NT-proBNP3 levels in failure group were significantly higher than those in success group (P =0.01,0.003).The area under curve (AUC) of the ROC curve of NT-proBNP2 levels to predict the failure of weaning was 0.862 (95％ CI:0.753-0.971).When the optimal cut-off point of NT-proBNP2 was 715.5 pg/mL,the sensitivity and specificity were 93.3％ and 74.1％,respectively.Conclusion The NT-proBNP2 levels before SBT have predictive value in weaning rate,and it can be used as one of the screening indicators for weaning.

The antitumor effect of snake venom toxins and its application in medical field / 药学实践杂志

Objective To discuss the antitumor effect of snake venom toxins and its application in medical field .Methods To review the research progress of composition ,the antitumor effect and mechanism of snake venom toxins .Results It was demonstrated that the snake venom toxins can stop various tumor cells from growing ,and have the functions of killing the tumor cells ,inducing cell death ,and inhibition of angiogenesis .Conclusion It is an important direction in antitumor drug re-search and development to deeply research the composition and the mechanisms of action of the snake venom toxins .

Research advance of selective inhibitor of tumornecrosis factor receptor / 药学实践杂志

TNF signaling pathway was a valuable target ,and anti-TNF drugs were successfully used to treat autoim-mune and inflammatory diseases .But this therapy abrogate some beneficial TNF signaling ,leading to increased risk of infection and malignancy ,and the onset of new auto-immune diseases .Inhibiting the soluble TNF/TNFR1 axis while saving the benefi-cial transmembrane TNF/TNFR2 signaling untouched was a new approach .Because it inhibited the pathological effects of TNF and reduced the side effects ,and opened the way for the treatment of other diseases in which TNFR2 inhibition was detrimen-tal .The significance of the selective inhibition of TNFR1-mediated signaling pathways for TNF-related diseases was discussed and the mechanism of TNF identification TNFR was clarified ,which might provide new ideas for the design of new drugs .

Topological characteristics of postoperative survival rate-related molecules in hepatocellular carcinoma-associated complex networks / 军事医学

Objective To explore the network structure of genes and microRNA(miRNA) at the system level and to study topological characteristics of survival rate related molecules by means of survival analysis.Methods Regulatory networks were established with genes of hepatocellular carcinoma( HCC) and with the expression profiling data of miRNA. Survival knowledge in nodes was studied.Results All the nodes in gene co-expression networks conformed to power-law distribution.In a network, high-degree nodes were called Hub, which enriched more survival related genes than lower degree ones.Conclusion Hub nodes in gene regulatory networks promise to be potential features for molecular subtyping.

An integrated model for tissue engineered cartilage repair in vitro / 中国组织工程研究

BACKGROUND:With the development of tissue engineering, autologous chondrocyte implantation is often used to repair cartilage defects. And poor integration is one of the common reasons that lead to failure repairing. Many models in vitro are used for related studies. OBJECTIVE:To develop an interface integrated model of tissue engineered cartilage repair in vitro and to evaluate the effect. METHODS:Cartilage integration model in vitro was established in pigs. Total y 21 cartilaginous rings were obtained and divided into agarose gel group (n=18) and control group (n=3). In agarose gel group, cartilage rings were covered with agarose gel. Chondrocytes were separated and implanted into the ring. The leakage of cells around the cartilage rings was observed. The sections were stained for histological observation at 1, 2, 4 weeks. The average area of neochondrocytes was measured and compared. RESULTS AND CONCLUSION:The results from the control group were not processed, because there was no chondrocyte aggregate formation in the center of the explant ring due to earlier chondrocyte leakage outside the explant. While no chondrocytes were found outside the explant ring in the agarose gel group. Tissue sections of the agarose gel group were stained by hematoxylin and eosin, alcian blue, Safranin-O and col agen type II immunohistochemistry at 1, 2, 4 weeks. Neochondrocytes proliferated within cartilage ring, and produced extracellular matrix. After 2 weeks of incubation, these inserted chondrocytes were significantly increased. There was no statistical y significant increment between 2 weeks and 4 weeks (P>0.05), although the area was further increased by 4 weeks. This model provides a convenient simulation of the cartilage integration process in vitro and has a potential application in studies of cartilage integration and cartilage tissue engineering.

How will telomeric complex be further contributed to our longevity? - the potential novel biomarkers of telomere complex counteracting both aging and cancer

With the smooth move towards the coming expected clinical reports of anticancer pharmaceutical molecules targeting telomeres and telomerase, and also with the exciting success in the extension of lifespan by regulating telomerase activity without increased onset of oncogenesis in laboratory mouse models (Garcia-Cao et al., 2006; Jaskelioff et al., 2011), we are convinced that targeting telomeres based on telomerase will be a potential approach to conquer both aging and cancer and the idea of longevity seems to be no more mysterious. More interestingly, emerging evidences from clinical research reveal that other telomeric factors, like specific telomeric binding proteins and nonspecific telomere associated proteins also show crucial importance in aging and oncogenesis. This stems from their roles in the stability of telomere structure and in the inhibition of DNA damage response at telomeres. Uncapping these proteins from chromosome ends leads to dramatic telomere loss and telomere dysfunction which is more abrupt than those induced by telomerase inactivation. Abnormal expression of these factors results in developmental failure, aging and even oncogenesis evidenced by several experimental models and clinical cases, indicating telomere specific proteins and its associated proteins have complimentary roles to telomerase in telomere protection and controlling cellular fate. Thus, these telomeric factors might be potential clinical biomarkers for early detection or even therapeutic targets of aging and cancer. Future studies to elucidate how these proteins function in telomere protection might benefit patients suffering aging or cancer who are not sensitive to telomerase mediation.

Relationship between the density difference of microRNA binding and the evolution-ary conservation of 3′UTRs in housekeeping and non-housekeeping human genes / 军事医学

Objective To study the microRNA ( miRNA) regulation on the expression of housekeeping and non-house-keeping human genes from the systemic level , and to reveal the influence of conservation at 3′UTRs region for the density difference of miRNA regulatory between the two classes of genes .Methods We obtained miRNA regulation informations for the two classes of genes through the integration analysis of three sequence-based target gene prediction softwares and the conjoint analysis based on gene expression profile data .We also used phastCons-score based evolution analysis to study the conservation of 3′UTRs regions between the two classes of genes .Results Our results showed that housekeeping genes have a significantly higher density of miRNA binding sites and their 3′UTR are relatively conservative .Conclusion These findings highlight the importance of miRNA regulation in housekeeping genes , suggesting that investigating the roles of miR-NAs on the robustness of housekeeping genes expression is highly necessary .

Correlation between chondrocyte migration and integration capability during autologous chondrocyte transplantation / 中国组织工程研究

BACKGROUND:In joint surgery, the commonly used autologous chondrocyte transplantation often used to repair cartilage defects, and poor integration is one of the reasons that leading to failure repairing. Chondrocytes migration capability is proven to have correlation with integration and some pathways, such as Src-phosphorylated phospholipase Cγ1-extracellular regulated kinase 1/2 has been confirmed to have correlation with the migration ability of chondrocytes, but the correlation with the integration is stil unknown. OBJECTIVE:To determine the chondrocyte signaling pathways involved in autologous chondrocyte migration and their effects on cartilage integration in autologous chondrocyte implantation. METHODS:Articular chondrocytes were isolated from immature pig knee joints. The cells were divided into four groups:Src group, phosphorylated phospholipase Cγ1 group, extracellular regulated kinase 1/2 group and control group, then the Boyden chambers were used to quantify the chondrocyte migration. The chondrocytes/cartilage ring integration model was developed and cultured for 28 days, and then histology, biochemistry, biomechanics, western blot analysis and celltracking analysis were performed to observe the differences between the control group and the suppression groups. RESULTS AND CONCLUSION:The migration ability of chondrocytes was significantly decreased after pretreated with inhibitors. After the chondrocytes/cartilage ring co-cultured for 28 days, Western blot analysis showed that the pathway inhibitors has been presented in the entire culture cycle. The number and length of chondrocytes migrated into the integration area, col agen secretion level, matrix and mechanical strength in the control group were higher than those in three suppression groups. The results suggest that chondrocyte migration ability can affect the cartilage integration capability through Src-phosphorylated phospholipase Cγ1-extracellular regulating kinase 1/2 signal transduction pathway.

Visfatin levels and it's diagnostic value in patients with severe pneumonia / 中华急诊医学杂志

Objective To discuss the value of Visfatin in severity evaluation in patients with severe pneumonia via observation on the variations of the plasma level of Visfatin. Method Seventy subjects including 40 patients with severe pneumonia ( group A) and 30 patients with non-severe pneumonia (group B) admitted to the ICU of emergency department and general wards from June 2009 to June 2010, were enrolled in this prospective study, and another 30 healthy individuals from physical examinees were included as subjects in control group (group C). Patients with severe diseases of heart, brain and kidney, cancers, autoimmune disease, or under special treatment in latest one month were excluded. For the subjects of all three groups, the plasma levels of Visfatin, IL-6, IL-8 and TNF-α were measured by using ELISA, while the level of CRP was assayed by using immunoturbidimetry, and the routine blood test was performed as well. The blood gas analysis and Acute Physiology and Chronic Health Evaluation Ⅱ ( APACHE Ⅱ) were carried out in patients with pneumonia. Comparisons between groups were made by t-tests, ANOVA or nonparametric test. Correlation analysis was carried out by Pearson correlation coefficient or Spearman rank correlation test. Results The plasma level of Visfatin in patients with severe pneumonia (group A) was significantly higher than that in patients with non-severe pneumonia (group B) and in the control subjects (group C) (P < 0. 01) , and the level of Visfatin in pneumonia ( group B) and in control group (group C) , and that in group B was significantly higher than that in the controls (group C) (P <0. 01). In group A, the plasma level of Visfatin was positively correlated with CRP, TNF-α, APACHE Ⅱ and PMN% (rha =0. 653, r = 0.554, r = 0.558, r= 0.484, P <0. 05), while negatively correlated with PaO2 and PaO2/FiO2 ( rha = -0.422, r= -0.543, P <0. 05). Conclusions Visfatin may be involved in the systemic inflammation response in severe pneumonia as a pro-inflammatory cytokine which is valuable in assessing the severity of pneumonia.

An epidemiological investigation on the cases of Shanghai pre-hospital care in 2007 / 中华急诊医学杂志

Objective To analyze the epidemiologieal characteristics of the pre-hospital care cases in Shanghai in the year 2007. Method Based the demographic records in the year 2007, the cases which from the database of Shanghai pre-hospital care center with full items were analyzed. Chi-square test and exact probabilities were used to compete the consfituent ratio; and the method of circular distribution was used to calculate the peak time, date and month. Results There were 86 815 patients with pre-hospital care well documented from the ur-ban districts of Shanghai. The ratio of male to female was 3.89: 1. The senile patients accounted for 84.95% of all the pre-hospital care ones. The major causes of disease in patients with pre-hospital care were trauma, eere-brovascular disease,cardiac diseases, coma, high fever, tumor emergency, acute abodomen emergency,OB/GYN emergency and upper G1 tract bleeding in turn. During the daytime, the occurrence of those emergency patients with pre-hospital care usually peaked at 2:15 o' clock with the high frequency in the period of 5:45 to 17:45 o' clock.The top nine diseases had their own peak time and high frequency period, respectively. Within a year, no peak date occurrence of patients with prehospital care, in tolal, was found. Howerer, the occurrence of patients with high fever, acute abdomen and upper GI bleeding had specific peak dates within a year, respectively. Conclusioes The pre-hospital care eases in the urban of Shanghai have own epidemiologieal characteristics. Perfect the construc-tion of pre-hospital emergency care system, improving the professional training, and thereby meeting the require-ments are factors in the fundamental guarantee of improving the rescue full success rate of severe patients.