Study on the relationship between habitat factors and the distribution / 公共卫生与预防医学

Objective To explore the relationship between the distribution characteristics and the habitat factors of the invasive B. straminea in South China. Methods From October 2016 to August 2017, the breeding condition and habitat factors of B. straminea were investigated in the rivers of Shenzhen and its adjacent areas in the dry season, normal season and wet reason. The generalized additive model (GAM) was used to study the main habitat factors affecting the distribution density of B. straminea. Results The distribution characteristics of B. straminea showed obvious aggregation and unevenness in space. In terms of time, the density of snails was the highest in the dry season, followed by the normal water season and the least in the wet season. The GAM model analysis showed that the main habitat factors affecting the distribution density of B. straminea were water depth, water temperature, flow velocity, dissolved oxygen, and total phosphorus. When the flow velocity and water temperature were 0.25 m / s and 26 °C, respectively, the largest distribution density of snails might appear. The distribution density of B. straminea was positively correlated with dissolved oxygen and total phosphorus. Conclusion B. straminea is suitable to live in the water environment with poor water quality. In the future, the monitoring should be strengthened to provide reference for the prevention and control of the spread of the snails.

Spatiotemporal distribution of oncomelania hupensis snail habitats in the Middle and Lower Reaches of the Yangtze River / 公共卫生与预防医学

Schistosomiasis is one of the major communicable diseases, which seriously impacts human health, Oncomelania hupensis snail is unique intermediate host of Schistosoma japonicum as well as posts significant influence on schistosomiasis transmission. The long-term serial data of oncomelania snail area in the Middle and Lower Reaches of the Yangtze River in the Schistosomiasis situation in People's Republic of China ,were collected from 1999 to 2018. The spatial and temporal variation characteristics of oncomelania hupensis area in five provinces were analyzed by Manner-Kendall test. In the spatial change, the area composition ratio of lake-and-marshland regions in Hunan increased, while that in Hubei and Jiangxi showed a slight decline. The lake-and-marshland snails in Anhui showed a significant downward trend, while Jiangsu showed no stable trend. In the spatial change, the area of lake-and-marshland snails in Jiangsu, Anhui, and Hubei showed a downward trend, among which the downward trend in Hubei was not obvious, while the upward trend in Jiangxi and Hunan had an upward trend but the trend was not obvious. the year of the sudden change in the area of the lake and marshes in in Jiangsu and Hubei were 2010 and 2017 ; There was no significant mutation in Anhui Province; the mutation point of the lake-and-marshland snails in Hunan was between 2001 and 2002; the mutation year of the lake-and-marshland snails in Jiangxi was 2002.This paper studies the temporal and spatial changes of the snail breeding area in the middle and lower Yangtze River, and the results can provide a basis for the elimination of snails in different types of distribution areas.

Preliminary study on the diffusion dynamics characteristics of Biomphalaria straminea in Southern China / 公共卫生与预防医学

Objective To study the dynamic diffusion characteristics of Biomphalaria straminea in Shenzhen, Dongguan and Huizhou of Southern China. Methods B. straminea was monitored at 25 investigation points along 10 river channels in Shenzhen, Dongguan and Huizhou by salvaging method. The diffusion characteristics of snails along with water in the Guihua New Village section of the Guanlan River and the Dawei Village section of the Longgang River were analyzed by GPS location drift test. In addition, the influence of flooding on the diffusion of B. straminea in the Kuichong River both before and after Typhoon "Shanzhu" was analyzed by monitoring the hydrology and distribution of snails. Results In March and October from 2016 to 2018, a total of 1 176 kg of floating objects were salvaged in rivers in Shenzhen, Dongguan and Huizhou. Scattered B. straminea were found on water hyacinths. Drift test of floats with GPS showed that the average drift speed of GPS floating objects was close to the river surface velocity. Affected by river current and wind direction, the GPS floats quickly drifted to the river bank and stopped in the stagnant area due to the blockade of water plants, stone and the bending of the shoreline. The drift distance of each time was between 136 - 715m. The test results of salvaged floating objects found that the loss rates of B. straminea were 46.70% - 60.00% and 22.10% - 30.80%, in the Guihua New Village section of the Guanlan River and the Dawei Village section of the Longgang River, respectively, which were significantly affected by the floating weight, river velocity and drifting distance. The analysis of the hydrology and distribution of B. straminea in the Kuichong River both before and after Typhoon "Shanzhu" showed that the density of B. straminea in the river was significantly reduced by the flood. Conclusion B. straminea is mainly transported as suspended matter in water body, and flooding was an important factor in its long-distance diffusion.

The safety and efficacy of fluid resuscitation with hypertonic saline in traumatic hypovolemic shock:a meta-analysis / 中国医师杂志

Objective To assess the safety and efficacy of hypertonic saline in traumatic hypovolemic shock with Meta-analysis.Methods Comprehensive electronic search strategies were developed using the following electronic databases:PubMed,EMBASE,Medline,Ovid、Clinical Trials,CNKI,Wan Fang,CBM and FMJS.The Literature published before August of 2017 was searched.The randomized controlled trials (RCTs) about hypertonic saline in traumatic hypovolemic shock were included.A data-extraction sheet was developed based on the preset standards.The data from eligible studies were pooled through Meta-analysis.Results 9 trials with a total of 1600 patients (741cases in observation group,859 cases in control group) met the inclusion criteria.The meta-analysis showed that the hypertonic saline group displayed remarkable increase in the systolic blood pressure and decrease in hemoglobin level,compared with the isotonic saline group [MD =6.43,95％ CI(1.16,11.70),P ＜0.05],[MD =-5.99,95％ CI (-9.04,-2.95),P ＜0.05].The level of serum sodium [MD =7.94,95％ CI(7.39,8.50),P ＜0.05],serum chloride [MD =9.67,95 ％ CI(8.77,10.57),P ＜ 0.05] and osmolality [MD =18.11,95％ CI (10.73,25.49),P ＜ 0.05] in the hypertonic saline group was increased significantly but acceptable.No significant difference in mortality was found between the hypertonic saline group and the isotonic saline group [OR =0.88,95％ CI(0.69,1.11),P ＞ 0.05].Conclusions Available evidence shows that small volume hypertonic Sodium Chloride saline is safe and effective for resuscitation in patients with traumatic hemorrhagic shock.Since the quality of the inclued studes were not high,more high-quality,multicenter randomized controlled clinical studies need to provide better evidence for the above conclusion.

Delayed Terminal Ileal Perforation in a Relapsed/Refractory B-Cell Lymphoma Patient with Rapid Remission Following Chimeric Antigen Receptor T-Cell Therapy / Journal of the Korean Cancer Association, 대한암학회지

Chimeric antigen receptor T-cell strategy targeting CD19 (CART19) has prominent anti-tumor effect for relapsed/refractory B-cell lymphomas. CART19-associated complications have been gradually recognized, however, late-onset complications have not been extensively studied. Herein, for the first time we report a diffuse large B-cell lymphoma patient with terminal ileum involvement obtained rapid remission and developed spontaneous terminal ileal perforation 38 days following CART19 infusion. The late-onset perforation reminds us that, for the safety of CART treatment, more cautions are warranted for the management of delayed GI complications.

Challenges and countermeasures for water conservancy combined with schistosomiasis prevention and control in China in new era / 中国血吸虫病防治杂志

The spread of schistosomiasis seriously threaten the health of people and hinder the economic and social develop-ment in China. The water conservancy combined with schistosomiasis prevention and control effectively controlled the spread of schistosomiasis by controlling the spread of Oncomelania hupensis,the only intermediate host of Schistosoma japonicum. This pa-per reviews the evolution of the strategy of schistosomiasis prevention and control in China and points out the historical role of wa-ter conservancy combined with schistosomiasis prevention and control. Furthermore,this article analyzes the problems and chal-lenges of water conservancy combined with schistosomiasis prevention and control in the new period. In response to the challeng-es,the new strategy of water conservancy combined with schistosomiasis prevention and control is put forward,including:devel-oping the research of the new strategy of water conservancy combined with schistosomiasis prevention and control,enhancing the research of water conservancy technology combined with schistosomiasis prevention and control,improving the efficiency and ap-plicability of water conservancy projects combined with schistosomiasis prevention and control,strengthening the guidance of wa-ter conservancy technology combined with schistosomiasis prevention and control,and perfecting the evaluation system.

Density and hydrostatic settling velocity of Biomphalaria straminea / 中国血吸虫病防治杂志

Objective To understand the eco-hydraulics characteristics of Biomphalaria straminea,the intermediate host of Schistosoma mansoni. Methods The drainage method and settlement tube method were applied to measure B. straminea's den-sity and hydrostatic settling velocity respectively. Results The density of B. straminea was 1.04-1.16 g/cm3,and the average value was 1.08 g/cm3. The hydrostatic settling velocity was 2.32-12.92 cm/s. Conclusions The eco-hydraulics characteristics of B. straminea is different from Oncomelania hupensis,and more attention should be paid to the hydraulic measures for the con-trol of B. straminea.

Self-fixating mesh and sutured mesh in open inguinal hernia repair：a Meta-analysis / 中国组织工程研究

BACKGROUND:It remains controversial in term of therapeutic efficacy of self-fixating mesh and sutured mesh in inguinal hernia repair. OBJECTIVE:To compare the therapeutic effects of self-fixating mesh and sutured mesh in open inguinal hernia repair with Meta-analysis. METHODS:Comprehensive electronic search strategies were developed using the folowing electronic databases: Cochrane library, PubMed, EMBASE, Medline, Ovid, CNKI, Wanfang and FMJS. The Literature published before December 2014 was searched. Perspective randomized controled trials about comparing self-fixating mesh and sutured mesh in open inguinal hernia repair were included. A data-extraction sheet was developed based on the preset standards. The data from eligible studies were pooled through Meta-analysis. RESULTS AND CONCLUSION:Nine trials with a total of 2 100 inguinal hernia patients met the inclusion criteria, including 1 033 cases of self-fixing mesh and 1 067 cases of sutured mesh. The Meta-analysis showed that no significant differences were found between the two groups in the recurrence rate, seroma, hematoma, wound infection, pain, foreign body sensations (P > 0.05), but the duration of operation was less in the self-fixing mesh group than the sutured mesh group (P < 0.05). According to limited evidence, there are some findings as folows: self-fixating mesh is equivalent to sutured mesh in the therapeutic effects on open inguinal hernia repair. Because of the limits of samples and literature quality, more large-sample and high-quality trials are required to make a definite clinical evidence to use self-fixating mesh for groin hernia repair.

From endoplasmic reticulum to Golgi apparatus: a secretory pathway controlled by signal molecules / 浙江大学学报·医学版

Protein transport from endoplasmic reticulum (ER) to Golgi apparatus has long been known to be a central process for protein quality control and sorting. Recent studies have revealed that a large number of signal molecules are involved in regulation of membrane trafficking through ER, ER-Golgi intermediate compartment and Golgi apparatus. These molecules can significantly change the transport rate of proteins by regulating vesicle budding and fusion. Protein transport from ER to Golgi apparatus is not only controlled by signal pathways triggered from outside the cell, it is also regulated by feedback signals from the transport pathway.

The use of lightweight versus heavyweight mesh in open methods of inguinal hernia repair:A meta-analysis / 中国组织工程研究

BACKGROUND:It remains controversial in term of efficacy for the lightweight mesh and heavyweight mesh in inguinal hernia repair. OBJECTIVE:To compare the clinical therapeutic effects of lightweight mesh and heavyweight mesh in open methods of inguinal hernia repair with Meta-analysis. METHODS:Comprehensive electronic search strategies were developed using the fol owing electronic databases:PubMed, Cochrane Library, EMBASE, Medline, Ovid, CNKI, VIP, Wanfang and FMJS. The Literature published before February 2013 was searched. The randomized control ed trials about comparing lightweight mesh and heavyweight mesh in open methods of inguinal hernia repair were included. A data-extraction sheet was developed based on the preset standards. The data from eligible studies were pooled using RevMan5.1 software through Meta-analysis. RESULTS AND CONCLUSION:Eighteen trials with a total of 4 450 hernias met the inclusion criteria. The meta-analysis showed that there was a statistical difference between lightweight mesh group and the heavyweight mesh group on short-term pain [odd ratio (OR)=0.57, 95%confidence interval (CI) (0.43, 0.74), P0.5). According to limited evidence, there are some findings as fol ows:the lightweight mesh is of feasibility, safety and effectiveness for inguinal hernia repair. Because of the limits of sample and quality, more large-sample and high-quality trials are required to make a definite clinical evidence to use lightweight mesh for inguinal hernia repair.

Efficacies of da Vinci robotic and traditional laparoscopic resection for colorectal cancer: a Meta analysis / 中华消化外科杂志

Objective To compare the efficacies of da Vinci robotic and traditional laparoscopic resection for colorectal cancer.Methods Databases including Pubmed,Cochrane Library,EMBASE,Medline,Wanfang,CNKI,VIP and FMJS were searched,and literatures published before February 2012 were retrieved.Randomized controlled trials (RCTs) and non-randomized controlled trials (NRCTs) focusing the comparison between da Vinci robotic and laparoscopic resection for colorectal cancer were collected.All the literatures retrieved were screened according to preset standards,and the patients were divided into robotic group and laparoscopic group.A meta analysis on the effectiveness of robotic and laparoscopic surgery for colorectal cancer was carried out using the RevMan 5.1 software.Categorical variables were presented by odds ratio (OR) and 95％ confidence interval (95 ％ CI),continuous variables were presented by weighted mean difference (WMD) and 95 ％ CI.Results One RCT and 10 NRCTs including 974 patients with colorectal cancer were screened out and there were 426 patients in the robotic group and 548 patients in the laparoscopic group.Compared with conventional laparoscopic surgery,longer operation time,lower rate of conversion to laparotomy and shorter anal exsufflation time were observed in the robotic group (WMD =25.61,OR =0.32,WMD =-0.21,P ＜ 0.05).There were no significant differences in the operative blood loss,number of lymph node dissected,distal resection margin,morbidity and duration of hospital stay between the robotic group and the laparoscopic group (WMD =-23.14,-0.31,0.14,OR =1.06,WMD =-0.43,P ＞ 0.05).Conclusion The efficacies of da Vinci robotic and laparoscopic surgery for the treatment of colorectal cancer are comparable,while da Vinci robotic surgery has the features of lower rate of conversion to laparotomy and shorter anal exsufflation time.