Objective:To analyze the changes in the variables of venous thromboembolism (VTE) management among inpatients after implementing clinical care classification (CCC) system, and to explore the impacts.Methods:This was a quasi experimental study. Based on the network monitoring data in Zhongshan Hospital, Fudan University, all the inpatients were included in this study from January 2022 to June 2023. According to the date of implementing CCC, we took July 2022 as the intervention cut-off point, and two phases of pre-CCC (January 2022 to June 2022) and post-CCC (July 2022 to June 2023) were defined. The interrupted time series (ITS) analysis was used to evaluate the impacts of implementing CCC system on VTE management among inpatients.Results:ITS analysis showed that in the period of post-CCC (August 2022 to June 2023), the slope of VTE evaluation rate was 0.000 415 5, with a significant upward trend ( t=2.49, P<0.05). In the month of CCC system launched (July 2022), the implementation rate of VTE preventive measures increased significantly, with a significant statistical difference ( t=3.10, P<0.05). In the post-CCC phase (August 2022 to June 2023), the slope of VTE preventive measures implementation rate was -0.012 876, with no significant statistical difference ( P>0.05). The implementation of CCC system had no significant impacts on the overall and high-risk incidence of VTE among inpatients. Conclusions:After the implementation of the CCC system, the VTE evaluation rate of inpatients increased significantly, which suggesting that the CCC system standardized the clinical VTE management among inpatients.

Trehalase is widely used in industrial fermentation, food, medicine and other fields. There is a lack of industrial varieties of trehalase with excellent performance in China. Moreover, the applied research on trehalase was not well conducted. In this study, a strain of Pectobacterium cypripedii was screened from nature, and the gene PCTre encoding an acidic trehalase was cloned and expressed in E. coli BL21(DE3). The highest enzyme activity reached 4130 U/mL after fermenting in a 5 L fermenter for 28 h. The enzymatic properties study showed that PCTre hydrolyzed trehalose specifically. The optimum pH and temperature were 5.5 and 35 ℃, respectively. 80% of the enzyme activity was retained after being treated at pH 4.0, 4.5, and 5.0 for 8 h, showing good acid tolerance. Moreover, it has good tolerance to organic solvents, 60% enzyme activity was retained after being treated with 20% (V/V) ethanol solution for 24 h. Furthermore, trehalose could be completely hydrolyzed within 16 h in a simulated fermentation system containing 20% (V/V) ethanol and 7.5% trehalose, with 500 U/L PCTre added. This indicated a good application potential for industrial ethanol fermentation.
Trehalase/metabolism* ; Trehalose/metabolism* ; Escherichia coli/metabolism* ; Ethanol/metabolism* ; Cloning, Molecular

Amino acids are important compounds with a wide range of applications in the food, medicine and chemical industries. Corynebacterium glutamicum is a powerful workhorse commonly used in industrial amino acid production, with the scale of more than one million tons. In addition to its efficient anabolism, the effective exporters also ensure the high amino acid production by C. glutamicum. In this review, the research progress of amino acid exporter of C. glutamicum is summarized, to provide the foundation for further improving amino acid production by C. glutamicum via metabolic engineering.
Amino Acids ; Corynebacterium glutamicum/genetics* ; Metabolic Engineering

Multi-species solid-state fermentation in a mud pit is one of the typical features of strong-flavor baijiu, in which archaea plays important roles, however, the archaeal community distribution and diversity during fermentation are still lack of research. The biomass, composition and succession of archaea communities in fermented grains and pit mud were analyzed by high throughput sequencing. The potential interaction between archaea and bacteria was analyzed by co-occurrence network. Results demonstrate that the average biomass of archaea in pit mud was about 200 times higher than that of fermented grains. There was no significant difference in archaeal community structure between fermented grains and pit mud (r=0.017, P=0.074), but succession patterns between them showed significant correlation (r=0.30, P=0.03). Methanobacterium was the most abundant archaea in fermented grains and pit mud, and other dominant groups included Methanosarcina, Methanocorpusculum, Methanoculleus, and Methanobrevibacter. The co-occurrence network analysis showed that Methanobacterium was positively correlated with most bacteria in fermented grains and pit mud, especially with Hydrogenispora and Caproiciproducens, the dominant bacteria in pit mud. Our results revealed the temporal and spatial distribution characteristics and potential functions of the archaeal community in the mud pit of strong-flavor baijiu.
Alcoholic Beverages/analysis* ; Archaea/genetics* ; Bacteria ; Fermentation ; Taste

Clostridia inhabiting in jiupei and pit mud plays key roles in the formation of flavour during the fermentation process of Luzhou-flavour baijiu. However, the differences of Clostridial communities between jiupei and pit mud remains unclear. Here, the species assembly, succession, and metabolic capacity of Clostridial communities between jiupei and pit mud were analysed by high-throughput sequencing and pure culture approaches. The ratio of Clostridial biomass to bacterial biomass in the pit mud was relatively stable (71.5%-91.2%) throughout the fermentation process. However, it varied widely in jiupei (0.9%-36.5%). The dominant Clostridial bacteria in jiupei were Clostridium (19.9%), Sedimentibacter (8.8%), and Hydrogenispora (7.2%), while Hydrogenispora (57.2%), Sedimentibacter (5.4%), and Caproiciproducens (4.9%) dominated in the Clostridial communities in pit mud. The structures of Clostridial community in pit mud and jiupei were significantly different (P=0.001) throughout fermentation. Isolated Clostridial strains showed different metabolic capacities of volatile fatty acids in pure culture. Spatial and temporal heterogeneity of Clostridial communities existed in the baijiu fermentation pit, which was closely related to the main flavour components of Luzhou-flavour baijiu.
Alcoholic Beverages ; microbiology ; Bacteria ; classification ; metabolism ; Clostridium ; physiology ; Fatty Acids, Volatile ; metabolism ; Fermentation ; Food Microbiology

TSCI have dyskinesia and sensory disturbance that can cause various life-threaten complications. The patients with traumatic spinal cord injury (TSCI), seriously affecting the quality of life of patients. Based on the epidemiology of TSCI and domestic and foreign literatures as well as expert investigations, this expert consensus reviews the definition, injury classification, rehabilitation assessment, rehabilitation strategies and rehabilitation measures of TSCI so as to provide early standardized rehabilitation treatment methods for TSCI.

Objective To evaluate the association between preoperative serum thyroglobulin concentration and aggressive behavior of papillary thyroid cancer(PTC).Methods A total of 334 PTC patients diagnosed by surgical pathology treated in our hospital from Jan.2013 to Dec.2017 were retrospectively reviewed.Patients were divided into two groups according to Tg levels and clinicopathological characteristics between the two groups were compared.Binary logistic regression analysis was conducted to evaluate the factors influencing extrathyroidal extension and lymph node metastasis of PTC.Results High level of preoperative serum Tg was signifcantly associated with old age,multifocality,larger maximum tumor size,more frequent extrathyroidal extension,lymph node metastasis,and advanced T and TNM stage(P＜0.05).Maximum tumor diameter ＞2 cm(P=0.031) and preoperative serum Tg level ＞17.21 ng/ml(P=0.028) were independent risk factors for extrathyroidal extension.Maximum tumor diameter ＞2 cm(P=0.007) and preoperative serum Tg levels ＞25.40 ng/ml (P=0.016) were independent risk factors for lymph node metastasis,whereas female was a significant protective predictive factor(P＜0.001).Conclusion Preoperative serum Tg levels may serve as an independent risk marker for extrathyroidal extension and lymph node metastasis of PTC,and partly contributes to predict aggressive behavior of PTC.

In order to improve transformation efficiency of phytosterols into 9α-hydroxylation of 4-androstene-3,17-dione (9α-OH-AD) by Mycobacterium sp. LY-1, we studied the strains breeding using atmospheric and room temperature plasma (ARTP) technology and optimized their conversion process. A high production strain named C33 with a good genetic stability was selected and the product molar yield reached to 15.5%, 34.8% higher than that of original strain with 15 g/L phytosterols. Furthermore, the fermentation medium was optimized through the design of orthogonal experiment. Besides, oil-water bidirectional transformation system was set up to improve the 9α-OH-AD molar yield of mutant strain C33. With adding 12 mL soybean oil to each 1 g phytosterols, the molar yield of 9α-OH-AD reached 47.0%, which increased twice than that of control (15.5%).

Taiwanofungus camphoratus is a valuable and rare medicinal mushroom with various bioactivities, such as liver protection and anti-cancer. T. camphoratus can produce many arthroconidia at the end of submerged fermentation, but molecular mechanism underlying this submerged conidiation remains unknown. In this study, we found that Ca²⁺ concentration in culture medium significantly affected the arthroconidium production of T. camphoratus. Then, we identified two proteins (CaM and HSP90) involved in Ca²⁺/calmodulin signaling pathway and one protein (AbaA) involved in FluG-mediated conidiation pathway by two-dimensional electrophoresis analyses. Furthermore, we proposed a Ca²⁺/calmodulin- and FluG-mediated signaling pathway by bioinformatics analysis. By real-time quantitative PCR analyses of 23 key genes in the Ca²⁺/calmodulin- and FluG-mediated conidiation pathway, we found that expression levels of 7 genes (crz1, hsp90, flbB, brlA, abaA, wetA and fadA) showed significant responses to Ca²⁺ concentration in fermentation medium. Our research is beneficial for elucidating the underlying mechanism of submerged fermentation conidiation for T. camphoratus.

Objective To summarize the successful application experience of intra-hospital transport of 13 H7N9 avian influenza patients from the general wards to the avian influenza ward. Methods Form the expert group, to determine the design target and principle of the standardized workflow and point out the operation points of standard workflow in intra-hospital transport of each link. Results The standardized workflow included the disposal of the transfer notice, condition assessment, department contact,patient preparation,object preparation,custody transfer personnel preparation,transit guardianship and transfer to the avian influenza ward,a total of eight procedures.Between January 2013 and March 2017,13 cases were successfully transfered.All patients safely arrived avian influenza ward. The process was quick and smooth.Nobody was died or rescued within 1 h after transport. Conclusions The main differences of intra-hospital transport between H7N9 avian influenza patients and general critically ill patients are the transit time control, the particularity of terminal disposal, transshipment arrangement and hospital infection management personnel involved in the whole process.