Objective:To analyze the changing trend of cervical cancer epidemiological characteristics and disease burden in cancer registration areas of Guangxi Zhuang Autonomous Region (Guangxi) from 2010 to 2017, and to provide scientific basis for the development of cervical cancer prevention and control strategies in Guangxi.Methods:Using descriptive analysis method, based on the incidence and death data of cervical cancer in the tumor registration areas of Guangxi from 2010 to 2017, Crude morbidity, crude mortality, age-standardized morbidity and mortality (referred to as the winning rate), disability adjusted life years (DALYs) rate and the annual percentage change (APC) and average annual percentage change (AAPC) of the above indicators were calculated, and stratified analysis was conducted for urban and rural areas and different age groups.Results:From 2010 to 2017, the crude incidence rate of cervical cancer in Guangxi showed a significant upward trend, rising from 10.31/10 5 in 2010 to 19.94/10 5 in 2017, with an average annual growth rate of 7.9% ( P＜0.05). However, after age standardization, the trend of the age-standardized incidence rate of cervical cancer was not statistically significant ( P＞0.05). During the same period, the crude mortality rate of cervical cancer increased from 2.69/10 5 to 6.21/10 5, with an average annual growth rate of 13.1% ( P＜0.05), and the trend of the age-standardized mortality rate was basically consistent with that of the crude mortality rate. The analysis of urban-rural differences showed that the growth rates of the crude incidence rate and crude mortality rate of cervical cancer in rural areas were higher than those in urban areas from 2010 to 2017 (AAPC incidence rate: 21.3% vs. 2.3%; AAPC mortality rate: 20.1% vs. 8.4%). The analysis of age differences showed that the crude incidence rate and crude mortality rate of cervical cancer in all age groups increased to varying degrees, among which the growth rate of the incidence rate (AAPC=16.2%, P＜0.05) and mortality rate (AAPC=14.7%, P＜0.05) of cervical cancer in women aged 65 and above was the fastest. In addition, the DALYs rate of cervical cancer in Guangxi increased from 50.6/10 5 in 2010 to 111.0/10 5 in 2017, with an average annual increase of 11.9% ( P＜0.05). The growth rate of the DALYs rate in rural areas was higher than that in urban areas, and the growth rate of the DALYs rate in the 50-59 age group was higher than those in other age groups. Conclusions:From 2010 to 2017, the incidence rate, mortality rate and DALYs rate of cervical cancer in Guangxi showed an upward trend. Comprehensive prevention and control measures for cervical cancer, such as improving the early diagnosis and treatment system, promoting the popularization of HPV vaccination and strengthening health education, should be taken to reduce the disease burden of cervical cancer.

Purpose To investigate the clinicopathological features,diagnosis,differential diagnosis,treatment,and prognosis of intrathyroid thymic carcinoma(ITC).Methods The clinical manifestations,histological features and immunophenotypes of 11 patients with ITC were retrospectively analyzed.Immunohistochemistry and Sanger sequencing were used for protein and gene detection.The relevant literature is retrieved and the data of this paper is analyzed sta-tistically.Results Among the 11 patients,6 were female and 5 was male,aged from 35 to 75 years old.Tumor inva-sion into peripheral thyroid tissue was observed in 2 cases.Immunohistochemical analysis revealed positive expression for CD5,CD117,p63,p40,CK5/6,CK17 and CKpan,with focal positivity for Syn observed in only 1 case.Genetic testing:1 patient had mutations in the TERT promoter gene(C.-228 C＞T).Conclusion ITC is an extremely rare,low-grade malignant tumor.Due to its morphological similarity to other highly malignant thyroid tumors,it is prone to misdiagnosis.Immunohistochemistry and genetic testing play a crucial role in accurate differential diagnosis.

[Purpose]To analyze the incidence and mortality of liver cancer in Fusui County of Guangxi Zhuang Autonomous Region in 2019 and the trend of change from 201 1 to 2019.[Meth-ods]Based on the incidence and mortality data of liver cancer in Fusui County from 2011 to 2019,the crude incidence rate,crude mortality rate,age-standardized rate by Chinese standard population(ASIRC/ASMRC),age-standardized rate by world standard population(ASMRW/ASM-RW),disability-adjusted life years(DALY),years of life lost(YLL),years of lived with disability(YLD)were calculated.The Joinpoint linear regression model was used to calculate the average annual percentage change(AAPC)of the ASIRC/ASMRC and DALY rate of liver cancer in Fusui County from 2011 to 2019.[Results]In 2019,there were 345 new cases and 298 deaths of liver cancer in Fusui County,accounting for 28.49％and 35.86％of all new cases and death cases of malignant tumors in Fusui County,respectively.The crude incidence rate,ASIRC and ASIRW were 74.71/105,67.55/105 and 65.63/105,respectively;the crude mortality rate,ASMRC and ASMRW were 64.53/105,58.78/105 and 56.88/105,respectively.In 2019,ASIRC/ASMRC of men were higher than those of women(105.32/105 and 95.67/105 for men;27.26/105 and 19.11/105 for women).The peak incidence and mortality rates were in the 65～69 and 80～84 age groups,re-spectively.The incidence rate of liver cancer in Fusui County declined from 82.50/105 in 2011 to 67.55/105 in 2019,with an AAPC of-3.01％(P=0.024),but the mortality rate did not have sig-nificant changes(AAPC=-1.44％,P=0.224).The rate of DALY decreased from 14.51/105 to 10.36/105,with an AAPC of-2.82％(P=0.050).[Conclusion]The incidence rate and DALY rate of liv-er cancer in Fusui County showed an overall decreasing trend from 2011 to 2019,but still re-mained at a high level.It is necessary to further strengthen the prevention,screening and early treatment of liver cancer in this region,especially for men and the elderly.

[Purpose]To analyze the incidence and mortality of liver cancer in Fusui County of Guangxi Zhuang Autonomous Region in 2019 and the trend of change from 201 1 to 2019.[Meth-ods]Based on the incidence and mortality data of liver cancer in Fusui County from 2011 to 2019,the crude incidence rate,crude mortality rate,age-standardized rate by Chinese standard population(ASIRC/ASMRC),age-standardized rate by world standard population(ASMRW/ASM-RW),disability-adjusted life years(DALY),years of life lost(YLL),years of lived with disability(YLD)were calculated.The Joinpoint linear regression model was used to calculate the average annual percentage change(AAPC)of the ASIRC/ASMRC and DALY rate of liver cancer in Fusui County from 2011 to 2019.[Results]In 2019,there were 345 new cases and 298 deaths of liver cancer in Fusui County,accounting for 28.49％and 35.86％of all new cases and death cases of malignant tumors in Fusui County,respectively.The crude incidence rate,ASIRC and ASIRW were 74.71/105,67.55/105 and 65.63/105,respectively;the crude mortality rate,ASMRC and ASMRW were 64.53/105,58.78/105 and 56.88/105,respectively.In 2019,ASIRC/ASMRC of men were higher than those of women(105.32/105 and 95.67/105 for men;27.26/105 and 19.11/105 for women).The peak incidence and mortality rates were in the 65～69 and 80～84 age groups,re-spectively.The incidence rate of liver cancer in Fusui County declined from 82.50/105 in 2011 to 67.55/105 in 2019,with an AAPC of-3.01％(P=0.024),but the mortality rate did not have sig-nificant changes(AAPC=-1.44％,P=0.224).The rate of DALY decreased from 14.51/105 to 10.36/105,with an AAPC of-2.82％(P=0.050).[Conclusion]The incidence rate and DALY rate of liv-er cancer in Fusui County showed an overall decreasing trend from 2011 to 2019,but still re-mained at a high level.It is necessary to further strengthen the prevention,screening and early treatment of liver cancer in this region,especially for men and the elderly.

Purpose To investigate the clinicopathological features,diagnosis,differential diagnosis,treatment,and prognosis of intrathyroid thymic carcinoma(ITC).Methods The clinical manifestations,histological features and immunophenotypes of 11 patients with ITC were retrospectively analyzed.Immunohistochemistry and Sanger sequencing were used for protein and gene detection.The relevant literature is retrieved and the data of this paper is analyzed sta-tistically.Results Among the 11 patients,6 were female and 5 was male,aged from 35 to 75 years old.Tumor inva-sion into peripheral thyroid tissue was observed in 2 cases.Immunohistochemical analysis revealed positive expression for CD5,CD117,p63,p40,CK5/6,CK17 and CKpan,with focal positivity for Syn observed in only 1 case.Genetic testing:1 patient had mutations in the TERT promoter gene(C.-228 C＞T).Conclusion ITC is an extremely rare,low-grade malignant tumor.Due to its morphological similarity to other highly malignant thyroid tumors,it is prone to misdiagnosis.Immunohistochemistry and genetic testing play a crucial role in accurate differential diagnosis.

Objective:To analyze the changing trend of cervical cancer epidemiological characteristics and disease burden in cancer registration areas of Guangxi Zhuang Autonomous Region (Guangxi) from 2010 to 2017, and to provide scientific basis for the development of cervical cancer prevention and control strategies in Guangxi.Methods:Using descriptive analysis method, based on the incidence and death data of cervical cancer in the tumor registration areas of Guangxi from 2010 to 2017, Crude morbidity, crude mortality, age-standardized morbidity and mortality (referred to as the winning rate), disability adjusted life years (DALYs) rate and the annual percentage change (APC) and average annual percentage change (AAPC) of the above indicators were calculated, and stratified analysis was conducted for urban and rural areas and different age groups.Results:From 2010 to 2017, the crude incidence rate of cervical cancer in Guangxi showed a significant upward trend, rising from 10.31/10 5 in 2010 to 19.94/10 5 in 2017, with an average annual growth rate of 7.9% ( P＜0.05). However, after age standardization, the trend of the age-standardized incidence rate of cervical cancer was not statistically significant ( P＞0.05). During the same period, the crude mortality rate of cervical cancer increased from 2.69/10 5 to 6.21/10 5, with an average annual growth rate of 13.1% ( P＜0.05), and the trend of the age-standardized mortality rate was basically consistent with that of the crude mortality rate. The analysis of urban-rural differences showed that the growth rates of the crude incidence rate and crude mortality rate of cervical cancer in rural areas were higher than those in urban areas from 2010 to 2017 (AAPC incidence rate: 21.3% vs. 2.3%; AAPC mortality rate: 20.1% vs. 8.4%). The analysis of age differences showed that the crude incidence rate and crude mortality rate of cervical cancer in all age groups increased to varying degrees, among which the growth rate of the incidence rate (AAPC=16.2%, P＜0.05) and mortality rate (AAPC=14.7%, P＜0.05) of cervical cancer in women aged 65 and above was the fastest. In addition, the DALYs rate of cervical cancer in Guangxi increased from 50.6/10 5 in 2010 to 111.0/10 5 in 2017, with an average annual increase of 11.9% ( P＜0.05). The growth rate of the DALYs rate in rural areas was higher than that in urban areas, and the growth rate of the DALYs rate in the 50-59 age group was higher than those in other age groups. Conclusions:From 2010 to 2017, the incidence rate, mortality rate and DALYs rate of cervical cancer in Guangxi showed an upward trend. Comprehensive prevention and control measures for cervical cancer, such as improving the early diagnosis and treatment system, promoting the popularization of HPV vaccination and strengthening health education, should be taken to reduce the disease burden of cervical cancer.

Objective:To analyze the current situation of middle-level cadres in functional departments of scientific research institutes and to construct a job competency model for middle-level cadre.Methods:A cluster random sampling method was used to conduct a questionnaire survey in March 2022 on the satisfaction level of middle-level cadres in the functional departments of the Institute of Blood Transfusion of the Chinese Academy of Medical Sciences,a mid-level cadre competency questionnaire survey was conducted to collect data among functional department personnel of scientific research institutes affiliated to the Chinese Academy of Medical Sciences and Peking Union Medical College.The principal component analysis method was used to extract factors,and the maximum variance rotation method was used to conduct exploratory factor analysis to construct a competency model.Results:The Middle-level cadres in scientific research institutes had problems such as old age,traditional management style,etc.The competency model of middle-level cadres in functional departments of scientific research institutes included 3 main competencies:responsibility taking ability,communication ability and learning execution ability,and 34 competency factors.Conclusion:The competency model of middle-level cadres in functional departments of scientific research institutes can provide basis and reference for the selection and appointment,education and training,performance management and career planning of middle-level cadres in scientific research institutes.

At present, the incidence and mortality of tumors are increasing, and the treatment of tumors has attracted much attention. Radiotherapy is a key method for tumor treatment; however, its effectiveness is often constrained by radioresistance. During tumor radiotherapy, DNA damage response (DDR) is a key factor in the radioresistance of tumor cells. Research has shown that the radiosensitivity of tumor cells can be effectively improved by regulating the expression of key proteins in the DDR pathway. Targeting the DDR signaling pathway has become an effective strategy to reduce tumor radioresistance. This article focuses on the mechanisms, clinical research status, limitations, and current challenges associated with the key DDR proteins DNA-PKcs, ATM, ATR, and PARP as therapeutic targets for tumor radiotherapy sensitization, in order to provide a reference for the development of radiotherapy sensitization agents.

Objective:To investigate the effect and mechanism of vitamin K2 on vascular calcification in a type 2 diabetes rat model.Methods:Thirty male Wistar rats,6 weeks old,were acclimatized for 7 days.Ten rats were randomly selected as the negative control group,fed a normal diet,and injected with an equal amount of citrate buffer.The remaining rats were fed a high-fat and high-sugar diet for 4 weeks,and then type 2 diabetes was induced by intraperitoneal injection of streptozotocin.After successful induction of the diabetes model,the diabetic rats were numbered by body weight and divided into the diabetes group and the diabetes+vitamin K2 group according to the principle of stratified random grouping.These two groups were fed a high-fat diet and a high-fat diet containing vitamin K2,respectively,while the control group continued to be fed a normal diet.After 13 weeks of feeding,the rats were sacrificed for sample collection,and blood glucose and vascular calcium concentration were measured.Von Kossa staining was used for histopathological detection.The relative expression levels of hypoxia-inducible factor-1α(HIF-1α),pyruvate dehydrogenase kinase 4(PDK4),matrix Gla protein(MGP),and bone morphogenetic protein-2(BMP-2)mRNA and proteins were measured by qRT-PCR and Western blot,respectively.Results:Compared with the control group,blood glucose levels in the diabetes group and diabetes+vitamin K2 group were significantly elevated(P＜0.01),but there was no significant difference between the two groups.There was no significant difference in vascular calcium concentration among the three groups(P＞0.05).Von Kossa staining showed that the control group exhibited normal vascular structures,while the diabetes group showed a large number of brown-black calcification plaques between elastic fibers in the vascular media.The diabetes+vitamin K2 group had either no calcification plaques or only a few brown-black calcification plaques.Compared with the control group,the expression levels of PDK4,MGP,and BMP-2 mRNA and proteins were higher in the diabetes group(P＜0.05),but there was no significant difference in the expression level of HIF-1α.Only the expression level of PKD4 protein had significance between the control group and diabetes+vitamin K2 group(P＜0.05).There was no significant difference in the above indexes between the diabetic group and diabetic+vitamin K2 group(P＞0.05).Conclusions:Type 2 diabetes mellitus may cause vascular calcification by increasing the expression of PDK4,which in turn leads to increased expression of BMP-2 and MGP.Vitamin K2 can inhibit vascular calcification in diabetes.

Objective:To investigate the impact of serum vitamin A levels on all-cause mortality risk in diabetes patients.Methods:Diabetes patients aged 20 years and above who participated in the US National Health and Nutrition Examination Survey during 2003-2004 and 2005-2006 were enrolled as the study population,with death data up to 2019 as the endpoint.Cox proportional hazards regression models were employed to calculate the hazard ratios of all-cause mortality in diabetes patients with different serum vitamin A levels,both unadjusted and adjusted for confounders.Restricted cubic spline methods were used to analyze the dose-response relationship between serum vitamin A levels and all-cause mortality risk in diabetes patients.Results:A total of 484 diabetes patients were included,with a median follow-up period of 13.7 years,during which 211 deaths occurred.Cox proportional hazards analysis showed that compared to the lowest quartile of serum vitamin A,higher quartiles of serum vitamin A were not associated with all-cause mortality risk in diabetes patients without adjusting for confounders.However,after adjusting for confounders,higher quartiles of serum vitamin A significantly reduced the all-cause mortality risk.The dose-response analysis indicated a significantly increased risk of all-cause mortality in diabetes patients with lower serum vitamin A levels.As the vitamin A levels increased,the mortality risk gradually decreased.A significant reduction in all-cause mortality risk was observed when serum vitamin A levels were between 2.17 and 2.50 μmol/L.Beyond this range,there was a tendency for increased all-cause mortality risk with further increases in vitamin A levels.Conclusion:Lower serum vitamin A levels increase the all-cause mortality risk in diabetes patients,while moderate serum vitamin A levels help reduce the all-cause mortality risk in diabetes patients.