1.Parasite pollution in aquatic products marketed in Fujian Province
Chenxin LIN ; Shihan LIN ; Weiwei CHEN ; Shuling HUANG ; Dianwei JIANG
Chinese Journal of Zoonoses 2017;33(6):564-568
We studied the status of parasite pollution in fish and shrimps in Fujian Province,and provided basis for prevention and control of parasite pollution and food safety in aquatic products.Stratified random sampling method was used,and Fujian Province was divide into Eastern,Southern,Western,Northern and Central five regions of Fujian province.Based on the data collected from the five regions between 2012 and 2016,digestion and compression methods were conducted to detect the levels of parasite metacercariae and larvae in both freshwater and marine products.Results showed that the total parasitoid infection rate was 5.15% (130/2 524).The infection rate of trematode metacercariae and nematode larvae were 3.72% (94/2524) and 1.43% (36/2 524),respectively.Twenty-eight marine aquatic species were investigated and the infection rate was 17.25 % (88/510),in the form of Anisakis infection.The parasite infection rates in the five regions were 10.38% (27/260) in Mindong,5.84% (27/462) inMinnan,4.63% (30/648) in Minxi,4.64% (29/625) in Minbei and 9.91% (103/1 039) in Minzhong.The freshwater products in Fujian Province have been polluted by parasites and are area-depended.The infection rate of marine aquatic products is kept in a high level.Fujian Province should strengthen the food safety and health publicity,take effective prevention and control strategies,and use early warning mechanisms to insure the food safety in province.
2.A new species of Paragonimus sheni--with a key to the species adult worm and metaceycariae of the genus Paragonimus in China
Xiaoyun SHAN ; Chenxin LIN ; Yousong LI ; Ye HU ; Xiuosheng SHEN ; Hougqiang LOU
Chinese Journal of Zoonoses 2009;(12):1143-1148
This paper gives a report on a new species of paragonimus in MT.Wuyishan,Fujian province during 1978 to 1983.All the type are deposited in the Center for Disease Control and Prevention of Fujian province.Holotype body short-oval,12.5 by 7.0mm,ratio of width to length 1:1.79.Ovary 2.0×2.13mm in size,the third class branches.Testes big,2.5 by 3.75mm(left) and 2.0 by 4.75mm(right)in size,as piece-shapy,only 2 litter branches,being much larger than the ovary.cuticular spines slender,sing in arrangement.Matacercaria obtained from the fresh-water crab,Sinopotamon fujianensis Dai et Chen,1979,measuring 395 by 410 micra,its cyst wall sing ,only 3-5 micra.Basing on the characteristic features mentioned above,This worm found by us differs fromP.westermani,P.skrijabini,P.macrorchis,P.mingqingensis and Euparagonimus cenopiosus,and can be considered as a new species of Paragonimus.
3.Schistosomiasis endemic situation in Fujian Province from 2003 to 2008
Lisha LI ; Rongyan ZHANG ; Youzhu CHENG ; Chenxin LIN ; Baojian CHEN ; Yanrong LI ; Yanyan FANG ; Kaiqian LIN ; Dianwei JIANG ; Jinxiang LIN
Chinese Journal of Schistosomiasis Control 2009;21(6):525-527
In order to understand the situation of schistosomiasis in Fujian Province, the surveillance and field survey data of 16 counties (cities or districts) were statistically analyzed from 2003 to 2008 according to the national and provincial surveillance protocols. The snail areas were 69 400 m~2 in 2003, and 506 700 m~2 in 2004, then decreased to 57 700 m~2 in 2008 after the snail control in 2005 and 2006. Serological examinations were conducted in 18 000 people, among which 5 412 people were the mobile population from schistosome-endemic areas, and 110 persons were positive, among which 8 persons had eggs and miracidia in their stools, among 7 885 appendix samples, Schistosoma japonicum eggs were found in 8 samples of the patients who came from the o-riginal endemic areas. By the stool examination, 2 709 head of farm cattle in the region with snails were not found infected with Schistosoma japonicum. It is suggested that the areas of residual snails are large and widespread, and the imported patients are found frequently, so the danger of schistosomisis transmission still remains.
4.Global burden of lung cancer in 2022 and projected burden in 2050
Lanwei GUO ; Chenxin ZHU ; Lin CAI ; Xinglong ZHANG ; Yi FANG ; Hongda CHEN ; Haiyan YANG
Chinese Medical Journal 2024;137(21):2577-2582
Background::Lung cancer is the most common cancer and a leading cause of cancer-related deaths globally. The aim of this study was to evaluate the incidence and mortality of lung cancer worldwide in 2022 and to project the number of new cases and deaths due to lung cancer in China and the United States in 2050.Methods::In this study, data from the GLOBCAN 2022 database were used to analyze lung cancer incidence and mortality. The current status of lung cancer incidence and deaths was described by country/region, sex, age, and the human development index (HDI), and future lung cancer incidence and deaths in China and the United States were projected for 2050.Results::Globally, an estimated 2,480,675 new lung cancer cases and 1,817,469 lung cancer-related deaths occurred in 2022, with age-standardized incidence rates (ASIRs) and age-standardized mortality rates (ASMRs) of 23.6/100,000 and 16.8/100,000, respectively. In China, the ASIR and ASMR for male lung cancer patients were approximately 1.7 times and 2.7 times greater than those for female lung cancer patients, respectively. The ASIR and ASMR in high-HDI countries were approximately 8.5 times and 6.5 times those in low-HDI countries, respectively. It is estimated that in 2050, there will be approximately 1120 thousand new cases and 960 thousand deaths among Chinese men, 680 thousand new cases and 450 thousand deaths among Chinese women, approximately 170 thousand new cases and 110 thousand deaths among American men, and 160 thousand new cases and 90 thousand deaths among American women.Conclusions::There are significant differences in the incidence and mortality of lung cancer among different regions and sexes. Therefore, sex factors need to be considered in the prevention, screening, and treatment strategies of lung cancer, and the implementation of tertiary prevention measures for lung cancer, especially primary and secondary prevention, needs to be actively promoted.
5.Prevalence of Anisakise infections in marine fishes in Eastern Fujian Fishing Ground of Fujian Province
Wuwei CAI ; Chenxin LIN ; Dan ZHENG ; Hanguo XIE
Chinese Journal of Schistosomiasis Control 2023;35(1):78-81
Objective To investigate the prevalence of Anisakis infection in marine fishes in Eastern Fujian Fishing Ground of Fujian Province, so as to provide insights into the development of the anisakiasis control strategy.. Methods Marine fish samples were randomly collected from Jiaocheng District, Fuding City and Xiapu County around Eastern Fujian Fishing Ground in Fujian Province from September to December, 2021. All fishes were dissected, and the abdominal contents were collected. Parasites were sampled under a stereomicroscope and the Anisakis species were identified through morphology. The prevalence and intensity of Anisakis infections were calculated. Results A total of 177 marine fishes belonging to 24 species were dissected, and Anisakis was detected in 73 marine fishes (41.2%) belonging to 16 species (66.7%), with a mean infection intensity of 14.3 parasites per fish. High prevalence of Anisakis infection was found in Ilisha elongata (5/5), Miichthys miiuy (3/3), Plectorhynchus cinctus (2/2), Scomberomorus niphonius (12/13), Trichiurus lepturus (19/23), Pennahia argentata (6/11) and Ditrema temmincki (14/27), with mean infection intensities of 9.2, 2.7, 4.5, 10.9, 39.2, 4.5 parasites per fish and 2.1 parasites per fish. The Anisakis larvae were characterized as Anisakis and Hysterothylacium. Conclusions High prevalence of Anisakis infection is detected in marine fishes in Eastern Fujian Fishing Ground of Fujian Province. The health education pertaining to food health is required to be reinforced to prevent the development of human anisakiasis.
6.Current status of global colorectal cancer prevalence, prevention and control
Lanwei GUO ; Xinglong ZHANG ; Lin CAI ; Chenxin ZHU ; Yi FANG ; Haiyan YANG ; Hongda CHEN
Chinese Journal of Oncology 2024;46(1):57-65
Objective:This paper provides a brief overview of the epidemiology of colorectal cancer in China and around the world, and discusses how to prevent colorectal cancer to reduce its disease burden.Method:Using the official database of GLOBOCAN 2020, the China Cancer Registry Annual Report compiled by the National Cancer Center, and data from CONCORD-3.Data management was performed by Microsoft Excel 2016 and R 4.2.1 Relevant graphs were generated using the ggplot2 package for result visualization.Result:An estimated 1 931 590 people were diagnosed with colorectal cancer worldwide in 2020 with an age-standardized incidence rate of 19.5 per 100 000. There were about 935 173 deaths caused by colorectal cancer internationally, with an age-standardized mortality rate of 9.0 per 100 000. Overall, colorectal cancer was the fourth most commonly diagnosed cancer and the third leading cause of cancer-related death worldwide in 2020. In China, the age-standardized incidence rate and mortality rate of colorectal cancer was 17.3 per 100 000 and 7.8 per 100 000, respectively. Gender differences in trends were observed, with a decreasing trend in incidence and mortality among females and an increasing trend in incidence and mortality among males. The primary risk factors for colorectal cancer include age, genetic factors, gastrointestinal disorders, dietary habits, and lifestyle et al.Conclusions:Colorectal cancer poses a significant burden globally and in China. The occurrence of colorectal cancer is closely related to physiology, genetics, behavioral habits, lifestyle, and disease factors. To better control the colorectal cancer burden with the lowest cost, specific measures should be taken to reduce exposure to established risk factors. By combining the disease prevention and control strategies of tertiary prevention in China with the characteristic factors of colorectal cancer, the incidence and mortality of colorectal cancer may be effectively controlled.
7.Interpretation of global lung cancer statistics
Lin CAI ; Chenxin ZHU ; Xinglong ZHANG ; Yi FANG ; Haiyan YANG ; Lanwei GUO
Chinese Journal of Epidemiology 2024;45(4):585-590
Lung cancer remains one of the leading cause of global cancer-related mortality, posing a significant burden of disease. Tobacco exposure stands as the foremost risk factor for lung cancer. Since the 1960, global efforts have gradually been implemented to control tobacco exposure, consequently reducing tobacco exposure levels within populations. This shift in exposure levels may have altered the epidemiological characteristics of lung cancer globally. This study aims to describe global lung cancer incidence data across five dimensions: age, gender, region, stage at diagnosis, and survival status, using global cancer registry data and relevant research findings. The objective is to elucidate the current epidemiological features of lung cancer worldwide, providing a scientific basis for lung cancer prevention and control. Furthermore, this study offers corresponding measures and recommendations for lung cancer prevention and control, aligning with the three-tiered cancer prevention strategy. Findings indicate that the incidence and mortality burden of lung cancer is significantly higher among the elderly population (aged 65 years and above) compared to the working-age population (aged 15-64 years). The aged-standardized incidence rate of lung cancer remains higher in males than in females, but the overall aged-standardized incidence rate of lung cancer in males shows a declining trend, while that in females shows an increasing trend. Regions with high and very high human development index (HDI) exhibit a substantially higher incidence and mortality burden of lung cancer compared to regions with low and very low HDI. Japan ranks highest in the diagnosis of stage Ⅰ lung cancer, with a diagnosis rate of 38.6%. Its age-standardized 5-year net survival rate is relatively high at 32.9%. Despite improvements in the survival status of lung cancer in certain countries like China and Japan, the overall prognosis for lung cancer remains pessimistic. Given the current epidemiological characteristics of lung cancer, reinforcing tobacco control measures and reducing female-specific lung cancer risk factors stand as significant goals for primary prevention. Promoting low-dose computed tomography screening for high-risk population, minimizing false-positive rates in lung cancer screening, and promoting medical system reforms and standardized treatment constitute principal measures for secondary and tertiary lung cancer prevention, respectively.
8.Analysis on disease burden of lung cancer in population in China
Lanwei GUO ; Lin CAI ; Chenxin ZHU ; Xinglong ZHANG ; Yi FANG ; Haiyan YANG
Chinese Journal of Epidemiology 2024;45(5):626-632
Objective:To analyze the incidence, mortality, and survival status and trends of lung cancer in China.Methods:The data of incidence, mortality, disability-adjusted life year (DALY), and survival status and trends of lung cancer in China were collected from GLOBOCAN 2020, Global Burden of Disease Study in 2019 (GBD2019) databases, and the CONCORD-3 project report. Joinpoint 5.0 software was used to analyze the age-standardized incidence rate (ASIR) and age-standardized mortality rate (ASMR) of lung cancer in China from 1990 to 2019. Data management was conducted by using Excel 2016, and relevant graphical representations were generated using the ggplot2 package in software R 4.2.1.Results:In 2020, a total of 815 563 lung cancer cases were newly reported in China with the ASIR of 34.8/100 000, in which 539 181 cases were reported in men, with the ASIR of 47.8/100 000, and 276 382 cases were reported in women, with the ASIR of 22.8/100 000. A total of 714 699 lung cancer deaths were reported in 2020, with the ASMR of 30.2/100 000. Among these deaths, there were 471 546 deaths in men with the ASMR of 41.8/100 000, and 243 153 deaths in women with the ASMR of 19.7/100 000. From 1990 to 2019, the ASIR and ASMR of lung cancer in both men and women showed increasing trends ( P<0.05). However, from 2010 to 2019, the ASIR and ASMR of lung cancer in men showed decreasing trends, with annual percent of change (APC) of -0.17% (95% CI: -0.24% - -0.09%) and -0.69% (95% CI: -0.79% - -0.59%), respectively. The ASIR and ASMR of lung cancer in women showed increasing trends from 2016 to 2019, with APC of 3.33% (95% CI: 2.73% - 3.88%) and 2.61% (95% CI: 1.99% - 3.28%), respectively. The five-year net survival rate for lung cancer was 19.8% in China (95% CI:19.4% - 20.2%) from 2010 to 2014. Conclusions:The morbidity and mortality of lung cancer in China remain at high levels, the prognosis of lung cancer was poor, and the disease burden of lung cancer would become more serious in the context of population aging, so three-level prevention of lung cancer should be implemented to address this problem. In addition, attention should be paid to the increasing trends of ASIR and ASMR of lung cancer in women in recent years. Further investigation of risk factors and targeted prevention are needed to curb the rising trend in the incidence of lung cancer in women.
9.Construction and reliability and validity of a scale for assessing psychiatric nurses' knowledge, attitude and practice towards the use of protective restraint
Junrong YE ; Haoyun WANG ; Wen WANG ; Aixiang XIAO ; Chenxin WU ; Li WANG ; Zhichun XIA ; Lian JIANG ; Yaling LI ; Lin YU ; Xingxiao HUANG ; Hang YANG
Sichuan Mental Health 2024;37(2):137-143
BackgroundThe existing tools in China for assessing psychiatric nurses' knowledge, attitude and practice towards the use of protective restraint do not sufficiently consider the specialty in psychiatric practice, and the scale items are somewhat cumbersome to use, which together restrict their further promotion and application. Accordingly, there is an urgent need for developing a more scientific assessment tool. ObjectiveTo construct a scale for assessing psychiatric nurses' knowledge, attitude and practice towards the use of protective restraint and to verify its reliability and validity, so as to provide a generic tool for the assessment. MethodsBased on the theoretical framework of the knowledge-attitude-practice model, the preliminary scale was formed through systematic literature review, qualitative interview and Delphi method. From July to December 2021, a stratified sampling was utilized to select 729 psychiatric nurses from tertiary, secondary and primary (including unclassified medical institutions and grassroots hospitals) psychiatric hospitals in Guangdong Province. The formal scale was developed through item analysis, exploratory factor analysis and confirmatory factor analysis. The validity of the scale was evaluated by content validity and structure validity, and the reliability was verified by procedures including Cronbach's α coefficient, test-retest reliability, and split-half reliability. ResultsA total of 12 items of three dimensions (knowledge, attitude, practice) were included in the scale for assessing psychiatric nurses' knowledge, attitude and practice towards the use of protective restraint. The scale-level content validity index (S-CVI) was 0.941, and the item-level content validity index (I-CVI) ranged from 0.812 to 1.000. Exploratory factor analysis extracted three common factors, and the cumulative variance contribution rate was 62.948%. The confirmatory factor yielded adequate fit. Cronbach's α coefficient was found to be 0.887 for the scale, 0.819 for knowledge dimension, 0.842 for attitude dimension, and 0.831 for practice dimension. The split-half reliability and test-retest reliability for the scale were 0.712 and 0.922, respectively. ConclusionThe scale shows satisfactory reliability and validity, which can be used to assess psychiatric nurses' knowledge, attitude and practice towards the use of protective restraint. [Funded by Guangdong Clinical Teaching Base Teaching Reform Research Project (number, 2021JD119)]
10.PRMT6 promotes tumorigenicity and cisplatin response of lung cancer through triggering 6PGD/ENO1 mediated cell metabolism.
Mingming SUN ; Leilei LI ; Yujia NIU ; Yingzhi WANG ; Qi YAN ; Fei XIE ; Yaya QIAO ; Jiaqi SONG ; Huanran SUN ; Zhen LI ; Sizhen LAI ; Hongkai CHANG ; Han ZHANG ; Jiyan WANG ; Chenxin YANG ; Huifang ZHAO ; Junzhen TAN ; Yanping LI ; Shuangping LIU ; Bin LU ; Min LIU ; Guangyao KONG ; Yujun ZHAO ; Chunze ZHANG ; Shu-Hai LIN ; Cheng LUO ; Shuai ZHANG ; Changliang SHAN
Acta Pharmaceutica Sinica B 2023;13(1):157-173
Metabolic reprogramming is a hallmark of cancer, including lung cancer. However, the exact underlying mechanism and therapeutic potential are largely unknown. Here we report that protein arginine methyltransferase 6 (PRMT6) is highly expressed in lung cancer and is required for cell metabolism, tumorigenicity, and cisplatin response of lung cancer. PRMT6 regulated the oxidative pentose phosphate pathway (PPP) flux and glycolysis pathway in human lung cancer by increasing the activity of 6-phospho-gluconate dehydrogenase (6PGD) and α-enolase (ENO1). Furthermore, PRMT6 methylated R324 of 6PGD to enhancing its activity; while methylation at R9 and R372 of ENO1 promotes formation of active ENO1 dimers and 2-phosphoglycerate (2-PG) binding to ENO1, respectively. Lastly, targeting PRMT6 blocked the oxidative PPP flux, glycolysis pathway, and tumor growth, as well as enhanced the anti-tumor effects of cisplatin in lung cancer. Together, this study demonstrates that PRMT6 acts as a post-translational modification (PTM) regulator of glucose metabolism, which leads to the pathogenesis of lung cancer. It was proven that the PRMT6-6PGD/ENO1 regulatory axis is an important determinant of carcinogenesis and may become a promising cancer therapeutic strategy.