A method based on stable isotope dilution gas chromatography-mass spectrometry ( GC-MS ) was established to determine five kinds of organophosphate esters ( OPEs ) in different kinds of cosmetics. For cream and wax-based cosmetics, samples were extracted by appropriate solvent, and then purified by ENVI-Carb solid phase extracting column. For powder and aqueous samples, GC-MS test could be operated directly after solvent extraction and concentration. All of the samples were separated by DB-5MS (30 m×0. 25 mm× 0. 25 μm) chromatographic column, and detected by selected ion monitoring ( SIM ) mode. The target analytes were qualitatively confirmed by retention time and abundance ratio of characteristic ions, and quantified by stable isotope diluted internal standard method. Under the optimized conditions, the linear coefficients of the OPEs were larger than 0. 9995, the detection limits were 1. 0-30 μg/kg, the average recoveries ( n=6 ) ranged from 89 . 5% to 105%, and the RSDs were in the range of 2 . 9%-9 . 1%. The developed method, which was characteristic by satisfactory purification effect, favorable matrix effect elimination capacity, as well as high recovery, was suitable for the determination of OPEs in different kinds of cosmetic matrices.

Objective Toinvestigatetheeffectsofpyrrolidinedithiocarbamate(PDTC)onexpressionofNF-κB,MMP-2andleft ventricular collagen remodeling following acute myocardial infarction in rats .Methods The myocardial infarction model in rat was induced by ligation of left anterior descending coronary artery .12 adult Sprague-Dawley rats survived 24 for h after acute myocardial infarction were randomly divided into the myocardial infarction (MI) group and the PDTC-treated(PD) group .Six rats were desig-nated as sham-operated group(SH group) .The PD group was intraperitoneally injected with PDTC (80 mg · kg -1 · d-1 ) for 28 d , the MI group and SH group were given normal saline as control .On 28 d ,the cardiac function of left ventricle was measured by ech-ocardiography .The infarct size was evaluated .The total collgen ,typeⅠcollgen ,typeⅢcollgen ,and Ⅰ /Ⅲ collgen ratio were quanti-fied histomorphometry .The mRNA and protein levels of NF-kappaBp65 and MMP-2 were determined by reverse transcription-poly-merase chain reaction(RT-PCR) and by Western blot ,respectively .Results Compared with the SH group ,the values of the total collgen ,typeⅠcollgen ,typeⅢcollgen ,and Ⅰ /Ⅲ collgen ratio in the MI group and the PD group were significantly increased ,the differen had statistical significance (P<0 .01) .The values of the total collgen ,typeⅠcollgen ,typeⅢcollgen ,and Ⅰ /Ⅲ collgen ratio in the PD group were notably decreased than those in the MI group(P<0 .01) .Moreover ,the mRNA and protein levels of NF-kap-paBp65 and MMP-2 in the PD group were lower than those in the MI group ,the difference had statistical significance(P<0 .01) . Conclusion Left ventricular collagen remodeling following acute myocardial infarction could be improved by PDTC to some extent , which mechanism could be related with inhibiting NF-kappaB activation and down -regulating the expression of MMP-2 in rats .

Objective:To investigate the temporal trend of the mortality rate of intracerebral hemorrhage (ICH) among residents with different characteristics during the comprehensive prevention and control of hypertension in Tengzhou, Shandong Province from 2013 to 2021.Methods:Comprehensive prevention and control of hypertension was conducted in Tengzhou, Shandong Province from 2013 to 2021. ICH mortality rate was calculated from January 1, 2013 to December 31, 2021. ICH mortality monitoring data from Tengzhou, Shandong Province was used to analyze the temporal trend of ICH mortality among residents with different characteristics. The registered residence population came from the Public Security Bureau of Tengzhou, Shandong Province. The age and gender standardized mortality rate was calculated based on the data of China's seventh population census in 2020. The temporal and age trends of mortality were analyzed using Cochran Armitage Trend Tests.Results:From 2013 to 2021, the overall crude and standardized mortality rates of ICH in Tengzhou, Shandong Province decreased from 50.51/100 000 and 63.21/100 000 to 17.51/100 000 and 16.74/100 000, respectively ( Z=-11.013 and -15.426, P<0.001), with an average annual mortality rate decrease of 12.41% and 15.30%, respectively. The overall crude and standardized mortality rates in 2017 peaked compared to 2016, mainly due to an increase of 32.94% and 30.92% in male ICH crude and standardized mortality rates, respectively ( χ2=12.328 and 15.854, P<0.05). The mortality rate of ICH increased with age, and the decreasing trend over time became increasingly evident with age. The mortality rate of ICH in the ≥65 year old age group decreased by 77.94% over 9 years ( Z=-14.065, P<0.001). In 2017, the mortality rate of ICH in the male age group ≥65 years old and female 45-54 years old increased by 31.13% and 125.79% compared to 2016 respectively, there were statistically significant differences ( χ2=8.877 and 5.421, P<0.05). In 2021, the mortality rates of urban and rural ICH decreased by 93.22% and 46.40% compared to 2013, respectively ( Z=-13.279 and -5.393, P<0.001), with an average annual decrease of 28.56% and 7.50%, respectively. The ICH mortality rate in rural areas increased by 30.54% in 2017 compared to 2016 ( χ2=16.086, P<0.001); after 2018, the mortality rate of ICH began to be higher than that of urban areas ( χ2=33.400 and 67.305, P<0.001). Conclusions:The ICH mortality rate in Tengzhou, Shandong Province has shown a significant downward trend over time, with male mortality rate higher than female mortality rate and rural mortality rate higher than urban areas. This suggests that the key attention should be paid to both male and rural areas.

Objective:To analyze the correlation between the grouping and weighting of two sets of disease combination systems, namely diagnosis-related groups(DRG) and diagnosis-intervention packet(DIP), and to establish a multidimensional analysis and evaluation mode by applying DRG, DIP, and clinical pathway to guide the standardized diagnosis and treatment and management of disease types.Methods:DRG grouping and DIP simulation full enrollment were applied to patients discharged from a tertiary Grade A general hospital in 2019. The correlation analysis between DRG, DIP, and clinical pathway inclusion(entry), correlation analysis between relative weight of DRG group and DIP standard score, and correlation analysis between clinical pathway entry and cost structure of the two disease groups were conducted by using chi-square test, Pearson correlation analysis, t-test, structural change value, degree of structural change, and incremental contribution rate. Results:Among the 130 395 patients, 41 460 cases entered the clinical pathway, 127 535 cases were enrolled in DRG, and 104 227 cases were enrolled in DIP. There was a correlation between the enrollment of DRG, DIP, and clinical pathway( P<0.05), and there was also a correlation between the relative weight of DRG groups and the enrollment of clinical pathway. The relative weight of the DRG disease group was positively correlated with the DIP standard score( r2=0.761 7, P<0.001). There was a significant difference in hospitalization costs between patients with and without clinical pathway access for some diseases( P<0.05), and different cost categories had different impacts on the total costs. Conclusions:The weight assignment and value orientation of DRG and DIP disease types are consistent, and the multi-dimensional fusion evaluation mode for DRG-DIP-clinical pathway is feasible. The correlation analysis of DRG, DIP, and clinical pathways can serve as the basis for disease classification and cost structure evaluation, which could help to carry out hospital′s refined management and optimize disease structure.

Objective:To analyze the changing trend of intracerebral hemorrhage (ICH) incidence among residents with different characteristics during 9 years of comprehensive hypertension prevention and control (hypertension prevention and control) in Tengzhou from 2013 to 2021.Methods:From January 1, 2013 to December 31, 2021, the new ICH cases collected by the Center for Disease Control and Prevention in Tengzhou City were analyzed to calculate the incidence of ICH, and the trend of its distribution was analyzed among residents with different ages, sexes, and between urban and rural areas. The registered population information came from Tengzhou Public Security Bureau. Age and sex standardized incidence was calculated based on the 7th National Population Census in 2020. The Cochran-Armitage test was used to analyze the time and age trends of the incidence.Results:The overall ICH crude and standardized incidence in Tengzhou City decreased from 97.30/100 000 to 52.13/100 000 ( Z=-9.93, P<0.001) and 119.30/100 000 to 50.69/100 000 ( Z=-15.40, P<0.001) from 2013 to 2021, and both elevated to form a single peak in 2020, with 22.58% ( χ 2=24.02, P<0.001) and 18.09% ( χ 2=17.08, P<0.001) higher than in 2019, respectively. The trends in male and female incidence over the same period were similar to the overall trends, and the incidence was higher in males than in females in all years. The incidence of ICH increased with age in all years. The difference of increase in male incidence rate in 2020 was statistically significant in three age groups ≥45 years compared with 2019 (36.29%, 23.57% and 16.18%, respectively, χ 2=6.73, 4.65, 4.00, P<0.001). The incidence of ICH decreased by 70.07% and 36.23% ( Z=18.44, 5.22, P<0.001) in urban and rural areas respectively from 2013 to 2021, whereas increased by 34.15% ( χ 2=10.88, P<0.01) and 22.08% ( χ 2=18.63, P<0.001) in 2020 compared with 2019 separately. Conclusions:The incidence of ICH in Tengzhou from 2013 to 2021 showed a significant downward trend, with the decrease in the incidence of ICH in women exceeding that in men. The decrease in the incidence of ICH in urban areas exceeded that in rural areas, and male morbidity seemingly had a younger trend.

The surveillance data of new cases of acute myocardial infarction (AMI) from January 1, 2013, to December 31, 2021, in Tengzhou City, Shandong Province, were used to analyze the incidence rate of AMI and its change trend among residents. The age and gender standardized incidence rate was calculated based on the 7th National Population Census 2020. The Cochran-Armitage trend test was used to analyze the trend of onset time and age. From 2013 to 2021, the crude and standardized incidence rate of total AMI in Tengzhou City declined from 130.07/100 000 and 161.12/100 000 to 76.15/100 000 and 72.77/100 000 ( Z=-13.785 and -20.822, both P<0.001). The crude and standardized incidence rates of males were higher than those of females. In 2016, males aged 45-54 years old and females aged 35-64 years old increased by 33.33%, 103.65%, 106.30%, and 95.75% compared to 2015, and the differences were statistically significant ( χ2=6.512, 4.965, 25.115, and 46.004, all P<0.05). The incidence rate of AMI in men aged<35 and 35-44 years old had an upward trend. From 2013 to 2021, the incidence rate of AMI decreased by 55.15% in urban areas and 36.59% in rural areas ( Z=-8.529 and -11.235, both P<0.001).

The surveillance data of new cases of acute myocardial infarction (AMI) from January 1, 2013, to December 31, 2021, in Tengzhou City, Shandong Province, were used to analyze the incidence rate of AMI and its change trend among residents. The age and gender standardized incidence rate was calculated based on the 7th National Population Census 2020. The Cochran-Armitage trend test was used to analyze the trend of onset time and age. From 2013 to 2021, the crude and standardized incidence rate of total AMI in Tengzhou City declined from 130.07/100 000 and 161.12/100 000 to 76.15/100 000 and 72.77/100 000 ( Z=-13.785 and -20.822, both P<0.001). The crude and standardized incidence rates of males were higher than those of females. In 2016, males aged 45-54 years old and females aged 35-64 years old increased by 33.33%, 103.65%, 106.30%, and 95.75% compared to 2015, and the differences were statistically significant ( χ2=6.512, 4.965, 25.115, and 46.004, all P<0.05). The incidence rate of AMI in men aged<35 and 35-44 years old had an upward trend. From 2013 to 2021, the incidence rate of AMI decreased by 55.15% in urban areas and 36.59% in rural areas ( Z=-8.529 and -11.235, both P<0.001).

Objective:To analyze the impact of hypertension prevention and control on the mortality rate of acute myocardial infarction (AMI) in Tengzhou City, Shandong Province from 2013 to 2021.Methods:This study was a cross-sectional study. The surveillance data of AMI deaths from January 1, 2013 (the time when hypertension prevention and control began in Tengzhou) to December 31, 2021 were collected in the coronary heart disease information management system, the mortality rate of AMI and its change trend were analyzed, and the distribution differences among residents with different characteristics were analyzed. The registered population information was obtained from Tengzhou Public Security Bureau, and the age and gender standardized mortality rate was calculated based on the data of the 7th national population census in 2020. The t test was used to compare the differences in blood pressure and laboratory items, chi-square test was used to compare the differences in mortality rate, and Cochran-Armitage trend test was used to compare the time trend and age trend of mortality rate, so as to analyze the impact of hypertension prevention and control on the mortality rate of AMI. Results:The overall crude and standardized AMI mortality rates in Tengzhou decreased from 50.87/100 000 and 63.82/100 000 to 41.08/100 000 and 38.70/100 000 from 2013 to 2021, respectively ( Z=-5.741, -10.884, both P<0.001), and double peaks were formed in 2014 and 2017. The first peak of crude and standardized mortality rate was formed in 2015 for males, which was 25.12% and 17.60% higher than that in 2013; and the first peak was formed in 2014 for females, which was 29.56% and 24.38% higher than that in 2013 ( χ2=13.200, 9.065, 14.862, 12.123) (all P<0.05). The second peaks of crude and standardized mortality were formed in 2017, with an increase of 18.17% and 17.17% for males and 25.73% and 22.34% for females from 2016 ( χ2=8.266, 9.182, 14.066, 11.105), the standardized mortality rate was 15.18%-29.01% higher in males than that in females ( χ2=6.239-19.326) (all P<0.05). The mortality rate of AMI increased with age ( Z=35.485-51.308) ( P<0.001). Compared with 2013, the mortality rate in males aged 55 to 64 years in 2015 increased by 64.29% from that in 2013, and that of females in 2017 increased by 108.48% from that in 2015; and that in females aged 35 to 44 years in 2016 increased by 373.51% from that in 2015 ( χ2=10.751, 12.805, 4.799); in 2021, the age group of male and female≥65 years decreased by 43.51% and 41.28% when compared with that in 2013, respectively ( Z=-7.333, -7.465) (all P<0.05). The mortality rate of AMI in urban areas decreased by 76.93% in 2021 when compared with that in 2016, and in rural areas it decreased by 30.28% than that in 2017. Both regions showed a downward trend ( Z=-7.560, -2.398) (both P<0.05). Conclusions:The mortality rate of AMI in Tengzhou City, Shandong Province from 2013 to 2021 shows a decreasing trend, and prevention and control of hypertension may be one of the reasons. The standardized mortality rate of males is higher than that of females, and the mortality rate decline rate in rural areas is lower than that in urban areas. The primary and secondary prevention of AMI in such populations should be strengthened.