1.Progress of early warning indicators on infectious diseases
Meihua FU ; Fangfang TAO ; Jian CHEN
Shanghai Journal of Preventive Medicine 2024;36(1):90-97
In recent years, with frequent outbreaks of infectious diseases around the world, the global public health is faced with many threats and challenges. An infectious diseases early warning system is an important means for prevention and control of infectious diseases. As an important part of the early warning system, the warning indicators is crucial for understanding the occurrence and development trend of infectious diseases, detecting abnormal situations timely and effectively, and issuing early warning and initiating emergency response. Based on the occurrence and development process of infectious diseases, this paper summarizes the research status of early warning indicators on infectious diseases, in order to provide reference for the development and improvement of the infectious diseases early warning system.
2.Visualization analysis of the hot spots and trends in thermal ablation studies of hepatocellular carcinoma
Peng GENG ; Qiang FU ; Zhongqi LU ; Ying CHANG ; Meihua ZHANG ; Yun JIN
Journal of Interventional Radiology 2024;33(8):870-875
Objective To explore the current research status,collaboration situation,hot spots and development trend of thermal ablation therapy for the treatment of hepatocellular carcinoma(HCC).Methods The Web of Science core collection database was searched,and the visualization analysis of the recent core literature was accomplished by using CiteSpace software.Results A total of 1385 core collections were enrolled in this study,and China was the country with the largest number of published academic papers.The most cited references was the theses published by Bruix,et al.The key words included radiofrequency ablation,microwave ablation,percutaneous ethanol injection,immunotherapy,fusion imaging,etc.,which could be divided into 6 clusters and 15 emergent words.Conclusion Thermal ablation of HCC has been a research hot spot in HCC treatment.This technology has been gradually maturing,and it,being combined with imaging technology and other therapeutic methods,has achieved continuous development and plays an important role in the clinical treatment of HCC.
3.Visualization analysis of the development trend of radiofrequency ablation for benign thyroid nodules
Peng GENG ; Qiang FU ; Zhongqi LU ; Ying CHANG ; Meihua ZHANG
Journal of Interventional Radiology 2024;33(9):983-988
Objective To discuss the development trend of radiofrequency ablation for benign thyroid nodules.Methods The Web of Science core ensemble database was searched for the published literature concerning the radiofrequency ablation for benign thyroid nodules,and CiteSpace software was used to complete the visualization analysis of the core literature published in recent years.Results A total of 396 core ensembles were included in this analysis,and during the period from 2013 to 2022 the number of published papers had maintained an increasing trend.China was the country that had the largest number of published papers.Baek and Jung Hwan were the authors who had the largest number of published papers,and Ulsan University had the largest number of published papers.The theses published by Kim et al were the most cited.Among the key words,the safety,effectiveness and long-term follow-up of radiofrequency ablation were more important.Conclusion Studies on radiofrequency ablation of benign thyroid nodules are increasing year by year,this therapy becomes gradually maturing,and more ablation methods are constantly emerging.
4.Application study of upper abdominal moxibustion combined with bedside ultrasound monitoring of gastric residual volume in pre-pyloric feeding of stroke patients
Bin XUE ; Meihua GAI ; Liming CAO ; Ruizhong YE ; Yanmei YU ; Yanping FU ; Weiwei ZHANG
China Modern Doctor 2024;62(32):7-10,15
Objective To explore the application effect of upper abdominal moxibustion combined with bedside ultrasound monitoring of gastric residual volume(GRV)in pre-pyloric feeding in stroke patients.Methods Eighty stroke patients admitted to the Department of Rehabilitation Medicine of Zhejiang Provincial People's Hospital from January 1,to December 31,2023 were selected as the study subjects.They were divided into control group(n=38)and observation group(n=42)using a random number table method.All patients had a nasogastric tube for pre-pyloric feeding.The control group used the traditional syringe aspiration method to monitor GRV,while the observation group used upper abdominal moxibustion combined with bedside ultrasound to monitor GRV.The study compared the differences between two groups in terms of enteral nutrition intolerance,feeding complications,enteral nutrition compliance rate within 7 days of admission,time to achieve enteral nutrition compliance,and changes in hemoglobin(Hb),serum prealbumin,serum albumin(ALB),and serum transferrin before and after 14 days of feeding.Results The incidence rates of vomiting,abdominal distention,intra-abdominal hypertension,reflux,and aspiration pneumonia in observation group were lower than those in control group(P<0.05).The rate of achieving intestinal nutrition standard within 7 days of hospitalization was significantly higher in observation group compared to the control group.The time to achieve intestinal nutrition standard was shorter in observation group compared to control group.Furthermore,after 14 days of feeding,the levels of Hb and ALB in observation group were higher than those in control group,and the differences were statistically significant(P<0.05).Conclusion Upper abdominal moxibustion combined with bedside ultrasonic monitoring of GRV can significantly reduce intestinal nutrition intolerance and feeding complications during pre-pyloric feeding in stroke patients,shorten the time to achieve nutritional benchmarks,and improve nutritional status.
5.Epidemiological characteristics of the notifiable infectious diseases reported in Shanghai in 2020
Meihua FU ; Wei FENG ; Ye WANG ; Fangfang TAO
Shanghai Journal of Preventive Medicine 2023;35(10):999-1005
ObjectiveTo understand the epidemic characteristics of notifiable infectious diseases (NIDs) other than coronavirus disease 2019 (COVID-19) in Shanghai in 2020, and to provide evidence for formulating infectious disease prevention and control strategies. MethodsData of NIDs reported in Shanghai from 2015 to 2020 were collected through the National Information System for Disease Control and Prevention. Descriptive epidemiological methods were used to analyze the incidence and prevalence characteristics of NIDs in Shanghai in 2020, and compared them with the average values of 2015 to 2019. ResultsA total of 45 574 cases of 23 kinds of NIDs were reported in Shanghai in 2020, except for COVID-19, with an incidence of 187.69/105, and a decrease rate of 50.58% compared with the average value of 2015 to 2019. The incidence of category B and C infectious diseases decreased by 38.07% and 57.47%, respectively (All P<0.001). The top 3 reported infectious diseases with the highest incidence rate were influenza (64.58/105), syphilis (39.09/105) and tuberculosis (24.90/105). The incidence of most infectious diseases decreased compared with the average of 2015 to 2019, among which measles (97.15%), rubella (88.81%), pertussis (87.43%), hand foot mouth disease (85.99%) and scarlet fever (79.84%) decreased significantly (all P<0.001). In general, compared with the average from 2015 to 2019, respiratory infectious diseases declined most, followed by intestinal infectious diseases, insect-borne and natural focal infectious diseases, blood-borne and sexually transmitted diseases. Districts with higher incidence in 2020 were Fengxian District (310.23/105), Xuhui District (271.93/105) and Hongkou District (254.38/105). Respiratory infectious diseases in Fengxian District, intestinal infectious diseases in Jinshan District, blood-borne and sexually transmitted infectious diseases in Changning District, and insect-borne and natural focal infectious diseases in Yangpu District showed the highest incidence rate. Incidence of infectious diseases in 16 districts of Shanghai decreased with different degrees (all P<0.001). Incidence of infectious diseases in males (209.44/105) was higher than that in females (164.89/105) (χ2=624.864, P<0.001). Children aged 0-9 years had the highest incidence of respiratory and intestinal infectious diseases. People aged 70‒79 years and 20‒29 years had higher incidence of blood-borne and sexually transmitted infectious diseases, and people aged 20‒29 years had the highest incidence of insect-borne and natural focal infectious diseases. Majority of the patients were students (8 327 cases, 18.27%), retired people (6 393 cases, 14.03%) and unemployed household workers (5 988 cases, 13.14%). ConclusionUnder the COVID-19 prevention and control policies, the incidence of most NIDs in Shanghai decreased significantly in 2020.
6.The research status and development trends of brain-computer interfaces in medicine.
Qi CHEN ; Tianwei YUAN ; Liwen ZHANG ; Jin GONG ; Lu FU ; Xue HAN ; Meihua RUAN ; Zhenhang YU
Journal of Biomedical Engineering 2023;40(3):566-572
Brain-computer interfaces (BCIs) have become one of the cutting-edge technologies in the world, and have been mainly applicated in medicine. In this article, we sorted out the development history and important scenarios of BCIs in medical application, analyzed the research progress, technology development, clinical transformation and product market through qualitative and quantitative analysis, and looked forward to the future trends. The results showed that the research hotspots included the processing and interpretation of electroencephalogram (EEG) signals, the development and application of machine learning algorithms, and the detection and treatment of neurological diseases. The technological key points included hardware development such as new electrodes, software development such as algorithms for EEG signal processing, and various medical applications such as rehabilitation and training in stroke patients. Currently, several invasive and non-invasive BCIs are in research. The R&D level of BCIs in China and the United State is leading the world, and have approved a number of non-invasive BCIs. In the future, BCIs will be applied to a wider range of medical fields. Related products will develop shift from a single mode to a combined mode. EEG signal acquisition devices will be miniaturized and wireless. The information flow and interaction between brain and machine will give birth to brain-machine fusion intelligence. Last but not least, the safety and ethical issues of BCIs will be taken seriously, and the relevant regulations and standards will be further improved.
Humans
;
Brain-Computer Interfaces
;
Medicine
;
Algorithms
;
Artificial Intelligence
;
Brain
7.A case of neonatal Cornelia de Lange syndrome caused by a novel variant of SMC1A gene.
Yanqing LI ; Yuanbai WANG ; Yuying JIANG ; Wanyu FU ; Meihua TAN ; Jianlong ZHUANG
Chinese Journal of Medical Genetics 2021;38(11):1132-1135
OBJECTIVE:
To explore the genetic etiology of a neonate with suggestive features of Cornelia de Lange Syndrome (CdLS).
METHODS:
Chromosome karyotyping, copy number variation sequencing (CNV-seq) and whole exome sequencing (WES) were carried out for the child. Meanwhile, peripheral venous blood samples were taken from his parents for verifying the suspected pathogenic variants detected in the child.
RESULTS:
The child has exhibited developmental delay, microcephaly, ptosis, micrognathia, and low ear setting, and was suspected as CdLS. No abnormality was found by karyotyping and CNV-seq analysis. WES has detected 5 heterogeneous variants and 1 hemizygous variant on the X chromosome. Combining the genetic pattern and result of family verification, a hemizygous C.3500T>C (p.ile1167thr) of the SMC1A gene was predicted to underlay the clinical manifestations of the patient. This variant was not recorded in the dbSNP and gnomAD database. PolyPhen2, Provean, SIFT all predicted the variant to be harmful, and PhastCons conservative prediction is was a conservative mutation. ACMG variant classification standard evidence supports are PM2, PP2, and PP3.
CONCLUSION
The novel c.3500T>C (p.Ile1167Thr) missense mutation of the SMC1A gene probably underlay the genetic etiology of CdLS in this child. Above results has enriched the mutation spectrum of CdLS type II, and facilitated clinical counseling for this family.
Cell Cycle Proteins/genetics*
;
Child
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DNA Copy Number Variations
;
De Lange Syndrome/genetics*
;
Humans
;
Infant, Newborn
;
Mutation
;
Phenotype
;
Whole Exome Sequencing
8.Epidemiological characteristics of coronavirus disease 2019 in Huzhou
JIN Meihua ; SHEN Jianyong ; FU Yun ; LIU Guangtao ; LIU Yan ; YANG Zhongrong ; REN Feilin ; XU Deshun ; CHEN Liqiang ; ZOU Yong ; DONG Xiaolian ; SHAO Bin ; LIU Bin
Journal of Preventive Medicine 2020;32(5):433-436
Objective:
To learn the epidemiological characteristics of coronavirus disease 2019(COVID-19)in Huzhou,so as to provide reference for prevention and control of COVID-19.
Methods:
All the confirmed cases of COVID-19 in Huzhou,diagnosed according to the COVID-19 Diagnosis and Treatment Plan(Sixth Version Trial)and reported from January 25 to February 7,2020,were recruited. The process of diagnosis and treatment,clinical manifestation,exposure history and close contacts were collected to analyze the epidemiological characteristics.
Results:
On January 25,the first confirmed cases of COVID-19 in Huzhou was reported. By February 7,totally 10 confirmed cases were reported and no asymptomatic infection was found. They were all imported,including three Wuhan residents,two with a trip to Wuhan,three with a trip to Suizhou,one with a trip to Hangzhou and one with a trip to Thailand(two Wuhan passengers on the same flight). The ratio of male to female cases was 1∶1. The median age was 32 years old. Seven cases were found when they went to a doctor by themselves,and three cases were found during the quarantine. The main clinical manifestations were fever,dry cough and fatigue. The median time from onset to diagnosis was 3 days. By March 3,all the cases were discharged,with median course of 24 days. There were 312 close contacts,and all of them were released after 14 days of quarantine.
Conclusions
To prevent imported cases from outside and stop spread inside taken by Huzhou government was proved to be effective. All the COVID-19 cases in Huzhou were imported,mostly from Wuhan. No local cases were reported.
9.Mining Polo-Box domain of Polo-like kinase 1 as a new therapeutic target for cancer.
Zhenghao FU ; Meihua SU ; Xiaoping LIU ; Yunyu CHEN
Chinese Journal of Biotechnology 2020;36(11):2298-2312
Polo-like kinase 1 (Plk1) is widely regarded as one of the most promising targets for cancer therapy due to its essential role in cell division and tumor cell survival. At present, most Plk1 inhibitors have been developed based on kinase domain, some of which are in clinical trial. However, inhibitors targeting kinase domain face off-target effect and drug resistance owing to the conserved nature and the frequent mutations in the ATP-binding pocket. In addition to a highly conserved kinase domain, Plk1 also contains a unique Polo-Box domain (PBD), which is essential for Plk1's subcellular localization and mitotic functions. Inhibitors targeting Plk1 PBD show stronger selectivity and less drug resistance for cancer therapy. Therefore, Plk1 PBD is an attractive target for the development of anti-cancer agents. In this review, we will summarize the up-to date drug discovery for targeting Plk1 PBD, including the molecular structure and cellular functions of Plk1 PBD. Small-molecule inhibitors targeting Plk1 PBD not only provide an opportunity to specifically inhibit Plk1 activity for cancer treatment, but also unveil novel biological basis regarding the molecular recognition of Plk1 and its substrates.
Cell Cycle Proteins/genetics*
;
Neoplasms/drug therapy*
;
Protein Kinase Inhibitors/pharmacology*
;
Protein-Serine-Threonine Kinases/genetics*
;
Proto-Oncogene Proteins/genetics*
10.Epidemiological characteristics of product-related injuries among children in Changshan County
Ming ZHAO ; Jieming ZHONG ; Jiafu DUAN ; Zhengfu WU ; Lihua GUO ; Hongxia ZENG ; Meihua FU ; Wenfeng LIU ; Sheng LIU ; Min YU
Journal of Preventive Medicine 2019;31(8):765-770
Objective:
To understand the epidemiological characteristics of product-related injuries among children in Changshan County from 2011 to 2017 and to provide evidence for targeted intervention.
Methods:
The surveillance data of product-related injuries among children aged below 18 years from 2011 to 2017 was collected from three sentinel hospitals in Changshan County. The characteristics of product-related injuries among children were analyzed,especially those injuries caused by furniture,stationery and sporting goods,commodities and toys.
Results:
A total of 5 111 product-related injury cases among children were reported,accounting for 13.49% of product-related injury cases of all age. There were 3 138 boys and 1 973 girls,accounting for 61.40% and 38.60%. There were 2 973 cases less than 10 years old,accounting for 58.17%. The main causes of product-related injuries were road traffic injury(49.46%),blunt(16.02%),stab/cut(12.39%)and fall(10.37%). The main categories of products included transportation equipments(not including motor vehicles,36.83%),motor vehicles(17.82%),furniture(12.23%),stationery and sporting goods(8.45%),commodities(4.89%)and toys(3.25%). Stab/cut(53.01%)was the main cause of commodities related injuries;blunt was the main cause of furniture,stationery and sporting goods and toys. The stationery and sporting goods related injuries occurred mainly in schools/public places(64.57%)and sports venues(18.48%)when engaging in sports(54.13%);furniture,commodities and toys related injuries injured cases occurred at home when engaging in leisure activities. Commodities mainly resulted in sharp/bite/open wound(51.50%);furniture,stationery and sporting goods and toys mainly resulted in bruises. Most cases were injured in head,slight and allowed home after treated.
Conclusion
The product-related injuries among children in Changshan County are more boys. The products mainly involve transportation equipments(not including motor vehicles),motor vehicles,furniture,stationery and sporting goods,commodities and toys,with emphasis on the latter four categories in the prevention of product-related child injury.


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