Background: Approximately 70% patients with acute myocardial infarction (AMI) presented without ST-segment elevation on electrocardiogram. Patients with non-ST segment elevation myocardial infarction (NSTEMI) often pr...Background: Approximately 70% patients with acute myocardial infarction (AMI) presented without ST-segment elevation on electrocardiogram. Patients with non-ST segment elevation myocardial infarction (NSTEMI) often presented with atypical symptoms, which may be related to pre-hospital delay and increased risk of mortality. However, up to date few studies reported detailed symptomatology of NSTEMI, particularly among Asian patients. The objective of this study was to describe and compare symptoms and presenting characteristics of NSTEMI vs. STEMI patients. Methods: We enrolled 21,994 patients diagnosed with AMI from China Acute Myocardial Infarction (CAMI) Registry between January 2013 and September 2014. Patients were divided into 2 groups according to ST-segment elevation: ST-segment elevation (STEMI) group and NSTEMI group. We extracted data on patients' characteristics and detailed symptomatology and compared these variables between two groups. Results: Compared with patients with STEMI (N=16,315), those with NSTEMI (N=5679) were older, more often females and more often have comorbidities. Patients with NSTEMI were less likely to present with persistent chest pain (54.3% vs.71.4%), diaphoresis (48.6% vs.70.0%), radiation pain (26.4% vs.33.8%), and more likely to have chest distress (42.4% vs.38.3%) than STEMI patients (all P<0.0001). Patients with NSTEMI were also had longer time to hospital. In multivariable analysis, NSTEMI was independent predictor of presentation without chest pain (odds ratio: 1.974, 95% confidence interval:1.849-2.107). Conclusions: Patients with NSTEMI were more likely to present with chest distress and pre-hospital patient delay compared with patients with STEMI. It is necessary for both clinicians and patients to learn more about atypical symptoms of NSTEMI in order to rapidly recognize myocardial infarction.展开更多
Background Diabetes is frequently associated with poor prognosis among acute myocardial infarction(AMI)patients.Patients with these comorbidities often have atypical symptoms and subsequent delay in treatment.Few stud...Background Diabetes is frequently associated with poor prognosis among acute myocardial infarction(AMI)patients.Patients with these comorbidities often have atypical symptoms and subsequent delay in treatment.Few studies have reported detailed AMI symptoms in patients with diabetes.This study compared AMI symptoms and presentation characteristics between diabetics and non-diabetics.Methods We included patients from the China AMI registry diagnosed with AMI between January 2013 and September 2014.Baseline characteristics,symptomology,and delay in treatment were compared between diabetics and non-diabetics.Multivariable logistic regression analysis was used to explore independent predictors of atypical symptoms.Results A total of 4450(20.2%)patients had diabetes.They were older,more often women,higher in body mass index,and more likely to have non-ST segment elevation myocardial infarction.Fewer diabetic patients presented with persistent precordial chest pain(63.1%vs.68%,P<0.0001),diaphoresis(60.1%vs.65.6%,P<0.0001),fatigue(16.7%vs.18.3%,P=0.0123),and incontinence(0.4%vs.0.7%,P=0.0093).Time to hospital presentation was longer among patients with diabetes than those without.In multivariable analysis,diabetes was identified as an independent predictor of atypical symptoms(OR:1.112,95%CI:1.034?1.196).Conclusions Our study is the first large-scale study providing evidence that diabetics are less likely to present with typical chest pain and more likely to experience treatment delay when suffering from an AMI.Our results may increase clinician awareness of recognizing AMI patients rapidly to reduce diagnosis and treatment delay,particularly in the context of diabetes.展开更多
Background:Patients with ST-segment elevation myocardial infarction(STEMI)who present without typical chest pain are associated with a poor outcome.However,whether angiographic characteristics are related to a higher ...Background:Patients with ST-segment elevation myocardial infarction(STEMI)who present without typical chest pain are associated with a poor outcome.However,whether angiographic characteristics are related to a higher risk of mortality in this population is unclear.This study aimed to investigate whether the higher mortality risk in patients with STEMI without chest pain could be explained by their"high-risk"angiographic characteristics.Methods:We used data of 12,145 patients with STEMI who was registered in China Acute Myocardial Infarction registry from January 2013 to September 2014.We compared the infarct-related artery(IRA),thrombolysis in myocardial infarction(TIMI)flow grade in the IRA,and other angiographic characteristics between patients without and those with chest pain.Multivariable logistic regression model was used to identify independent risk factor of in-hospital mortality.Results:The 2922(24.1%)patients with STEMI presented without typical chest pain.These patients had a higher TIMI flow grade(mean TIMI flow grade:1.00 vs.0.94,P=0.02)and a lower rate of IRA disease of the left anterior descending artery(44.6%vs.51.2%,χ^2=35.63,P<0.01)than did those with typical chest pain.Patients without chest pain were older,more likely to have diabetes,longer time to hospital and higher Killip classification,and less likely to receive optimal medication treatment and primary percutaneous coronary intervention and higher In-hospital mortality(3.3%vs.2.2%,χ^2=10.57,P<0.01).After adjusting for multi-variables,presentation without chest pain was still an independent predictor of in-hospital death among patients with STEMI(adjusted odds ratio:1.36,95%confidence interval:1.02–1.83).Conclusions:Presentation without chest pain is common and associated with a higher in-hospital mortality risk in patients with acute myocardial infarction.Our results indicate that their poor prognosis is associated with baseline patient characteristics and delayed treatment,but not angiographic lesion characteristics.Clinical trial re展开更多
Background： Age-related macular degeneration （AMD） is a major cause of irreversible blindness, and awareness of this disease is important in the prevention of blindness. However, lack of public awareness of AMD was...Background： Age-related macular degeneration （AMD） is a major cause of irreversible blindness, and awareness of this disease is important in the prevention of blindness. However, lack of public awareness of AMD was sbown in previous studies, and there was no report of AMD awareness in the Mainland of China. Therefore, the aim of our study was to assess the awareness of AMD and its risk factors among Beijing residents in China. Methods： A cross-sectional, computer-assisted, telephone investigation was conducted to measure the awareness of AMD among Beijing residents. All the contacts of potential respondents were randomly generated by computer. Only those above 18 years of age and willing to participate in the study were included. The questionnaire for the study was moditied from the AMD Alliance International Global Report. Pearson＇s Chi-square test and binary logistic regression analysis were used to identify the factors that affected the knowledge of AMD. Results： Among 385 Beijing residents who agreed to participale, the awareness of AMD was 6.8%, far below than that of cataract and glaucoma. Participants who were above 30 years of age （odds ratio [OR] 6.17, confidence interval [el] 1.44-26.57）, with experience of health-related work （OR 8.11, CI3.25-20.27）, and whose relatives/friends or themselves suffering from AMD （OR 32.18, CI11.29-91.68） had better AMD awareness. Among those familiar with AMD, only 35% of them identified smoking as a risk factor, and only 23.1% of the residents believed that smoking could lead to blindness. Conclusions： The sample of Chinese population had limited knowledge of AMD. Educational programs need to be carried out to raise public awareness of AMD.展开更多
采用Waters Sun Fire C_(18)色谱柱(3.0 mm×150 mm,3.5μm),以乙腈-0.1%磷酸水溶液为流动相,梯度洗脱,体积流量0.4 mL·min^(-1),采用多波长切换法,柱温35℃,对18批身痛逐瘀汤物质基准样品进样分析。建立了经典名方身痛逐瘀汤...采用Waters Sun Fire C_(18)色谱柱(3.0 mm×150 mm,3.5μm),以乙腈-0.1%磷酸水溶液为流动相,梯度洗脱,体积流量0.4 mL·min^(-1),采用多波长切换法,柱温35℃,对18批身痛逐瘀汤物质基准样品进样分析。建立了经典名方身痛逐瘀汤物质基准UPLC指纹图谱,共标定了16个共有峰,使用《中药色谱指纹图谱相似度评价系统》(2012版)计算相似度,其相似度在0.911~0.988,并结合聚类分析(cluster analysis,CA)、主成分分析(principal component analysis,PCA)以及偏最小二乘法判别分析(partial least squares discrimination analysis,PLS-DA)、化学计量法,以16个共有峰进行评价,18批身痛逐瘀汤物质基准被分为2类,样品S1、S2、S5~S8、S14、S17分为一类,样品S3、S4、S9~S13、S15、S16、S18分为一类。筛选出差异性较大的11个成分,对差异较大且已知的羟基红花黄色素A、阿魏酸、苯甲酸、蜕皮激素及甘草酸铵5种有效成分进行含量测定,结合指纹图谱可以反映身痛逐瘀汤物质基准的整体概貌。该研究建立的经典名方身痛逐瘀汤物质基准UPLC指纹图谱及多成分含量测定方法,简单可行,重复性、稳定性良好,可为身痛逐瘀汤物质基准质量控制的研究提供依据。展开更多
Additional sex combs-like 1(ASXL1)interacts with BRCA1-associated protein 1(BAP1)deubiquitinase to oppose the polycomb repressive complex 1(PRC1)-mediated histone H2A ubiquitylation.Germline BAP1 mutations are found i...Additional sex combs-like 1(ASXL1)interacts with BRCA1-associated protein 1(BAP1)deubiquitinase to oppose the polycomb repressive complex 1(PRC1)-mediated histone H2A ubiquitylation.Germline BAP1 mutations are found in a spectrum of human malignancies,while ASXL1 mutations recurrently occur in myeloid neoplasm and are associated with poor prognosis.Nearly all ASXL1 mutations are heterozygous frameshift or nonsense mutations in the middle or to a less extent the C-terminal region,resulting in the production of C-terminally truncated mutant ASXL1 proteins.How ASXL1 regulates specific target genes and how the C-terminal truncation of ASXL1 promotes leukemogen-esis are unclear.Here,we report that ASXL1 interacts with forkhead transcription factors FOXK1 and FOXK2 to regulate a subset of FOXK1/K2 target genes.We show that the C-terminally truncated mutant ASXL1 proteins are expressed at much higher levels than the wild-type protein in ASXL1 heterozygous leukemia cells,and lose the ability to interact with FOXK1/K2.Specific deletion of the mutant allele eliminates the expression of C-termi-nally truncated ASXL1 and increases the association of wild-type ASXL1 with BAP1,thereby restoring the expression of BAP1-ASXL1-FOXK1/K2 target genes,particularly those involved in glucose metabolism,oxygen sensing,and JAK-STAT3 signaling pathways.In addition to FOXK1/K2,we also identify other DNA-bind-ing transcription regulators including transcription factors(TFs)which interact with wild-type ASXL1,but not C-terminally truncated mutant.Our results suggest that ASXL1 mutations result in neomorphic alleles that contribute to leukemogenesis at least in part through dominantly inhibiting the wild-type ASXL1 from interacting with BAP1 and thereby impairing the function of ASXL1-BAP1-TF in regulating target genes and leukemia cell growth.展开更多
Halite and gypsum minerals in saline shale make the retention mechanism and chemical fractionation of residual oil unique. The Dongpu Depression in North China is a typically saline lacustrine basin with developing ha...Halite and gypsum minerals in saline shale make the retention mechanism and chemical fractionation of residual oil unique. The Dongpu Depression in North China is a typically saline lacustrine basin with developing halite and gypsum. The effect of gypsum minerals on residual oil content and chemical fractionation remains unclear. In this study, shale samples with different gypsum contents were used in organic geochemical experiments, showing that the high total organic matter (TOC) content and type II kerogen leads to a high residual oil content, as shown by high values of volatile hydrocarbon (S1) and extractable organic matter (EOM). XRD and FE-SEM result indicate that the existence of gypsum in saline shale contributes to an enhanced pore space and a higher residual oil content in comparison to non-gypsum shale. Additionally, the increase in the gypsum mineral content leads to an increase in the saturated hydrocarbon percentage and a decrease in polar components percentage (resins and asphaltene). Furthermore, thermal simulation experiments on low-mature saline shale show that the percentage of saturated hydrocarbons in the residual oil is high and remains stable and that the storage space is mainly mesoporous (> 20 nm) in the oil expulsion stage. However, the saturated hydrocarbons percentage decreases rapidly, and oil exists in mesopores (> 20 nm and < 5 nm) in the gas expulsion stage. In general, gypsum is conducive to the development of pore space, the adsorption of hydrocarbons and the occurrence of saturated hydrocarbon, leading to large quantities of residual oil. The data in this paper should prove to be reliable for shale oil exploration in saline lacustrine basins.展开更多
The water pollution derived from the discharge of heavy metals,antibiotics,dyes and surfactants wastewater,etc.has seriously affected human survival and ecological security.As an efficient and low-cost physical wastew...The water pollution derived from the discharge of heavy metals,antibiotics,dyes and surfactants wastewater,etc.has seriously affected human survival and ecological security.As an efficient and low-cost physical wastewater treatment process,the adsorption is a continuous hot spot in related scientific research and applications.Geopolymers are non-crystal or semi-crystalline materials with high-efficiency adsorption performance due to the alkali metal ions that balance the electronegative aluminosilicate skeleton can be efficiently replaced by other cations in the aqueous environment.The related studies of different application conditions,service objects and morphological differences of geopolymer adsorbents based on structure-function design have been in-depth exploration and investigation.This review aims to summarize the research progres s of the structure-function design based on the geopolymerization mechanism and kinetics and service requirements.An overview of service characteristics and progress of geopolymers in the wastewater treatment field(e.g.,dyes,heavy metals,radionuclides,surfactants,antibiotics,ammonium,phosphorus,nitrogen and CO_(2),etc.)are systematically discussed.And the evolution and development of morphological differences and the relationship of structure-function design of geopolymer adsorbents were compared and reviewed.Finally,the challenge worth overcoming,the trends worth considering and perspectives worth developing are highlighted.展开更多
Background：Paroxysmal kinesigenic dyskinesia （PKD） is a rare movement disorder characterized by recurrent dystonic or choreoathetoid attacks triggered by sudden voluntary movements.Under the condition of psychologi...Background：Paroxysmal kinesigenic dyskinesia （PKD） is a rare movement disorder characterized by recurrent dystonic or choreoathetoid attacks triggered by sudden voluntary movements.Under the condition of psychological burden,some patients＆#39; attacks may get worsened with longer duration and higher frequency.This study aimed to assess nonmotor symptoms and quality of life of patients with PKD in a large population.Methods：We performed a cross-sectional survey in 165 primary PKD patients from August 2008 to October 2016 in Rui Jin Hospital,using Symptom Check List-90-Revised （SCL-90-R）,World Health Organization Quality of Life-100 （WHOQoL-100）,Self-Rating Depression Scale,and Self-Rating Anxiety Scale.We evaluated the differences of SCL-90-R and WHOQOL-100 scores in patients and Chinese normative data （taken from literature） by using the unpaired Student＆#39;s t-test.We applied multivariate linear regression to analyze the relationships between motor manifestations,mental health,and quality of life among PKD patients.Results：Compared with Chinese normative data taken from literature,patients with PKD exhibited significantly higher （worse） scores across all SCL-90-R subscales （somatization,obsessive-compulsive,interpersonal sensitivity,depression,anxiety,hostility,phobic anxiety,paranoid ideation,and psychoticism;P =0.000 for all） and significantly lower （worse） scores of five domains in WHOQoL-100 （physical domain,psychological domain,independence domain,social relationship domain,and general quality of life;P =0.000 for all）.Nonremission of dyskinesia episodes （P =0.011） and higher depression score （P =0.000） were significantly associated with lower levels of quality of life.The rates of depression and anxiety in patients with PKD were 41.2% （68/165） and 26.7% （44/165）,respectively.Conclusions：Depression,anxiety,and low levels of quality of life were prevalent in patients with PKD.Co-occurrence of depression and anxiety was common among these patients.R展开更多
文摘Background: Approximately 70% patients with acute myocardial infarction (AMI) presented without ST-segment elevation on electrocardiogram. Patients with non-ST segment elevation myocardial infarction (NSTEMI) often presented with atypical symptoms, which may be related to pre-hospital delay and increased risk of mortality. However, up to date few studies reported detailed symptomatology of NSTEMI, particularly among Asian patients. The objective of this study was to describe and compare symptoms and presenting characteristics of NSTEMI vs. STEMI patients. Methods: We enrolled 21,994 patients diagnosed with AMI from China Acute Myocardial Infarction (CAMI) Registry between January 2013 and September 2014. Patients were divided into 2 groups according to ST-segment elevation: ST-segment elevation (STEMI) group and NSTEMI group. We extracted data on patients' characteristics and detailed symptomatology and compared these variables between two groups. Results: Compared with patients with STEMI (N=16,315), those with NSTEMI (N=5679) were older, more often females and more often have comorbidities. Patients with NSTEMI were less likely to present with persistent chest pain (54.3% vs.71.4%), diaphoresis (48.6% vs.70.0%), radiation pain (26.4% vs.33.8%), and more likely to have chest distress (42.4% vs.38.3%) than STEMI patients (all P<0.0001). Patients with NSTEMI were also had longer time to hospital. In multivariable analysis, NSTEMI was independent predictor of presentation without chest pain (odds ratio: 1.974, 95% confidence interval:1.849-2.107). Conclusions: Patients with NSTEMI were more likely to present with chest distress and pre-hospital patient delay compared with patients with STEMI. It is necessary for both clinicians and patients to learn more about atypical symptoms of NSTEMI in order to rapidly recognize myocardial infarction.
基金supported by CAMS Innovation Fund for Medical Sciences (CIFMS) (2016-I2M-1-009)the Twelfth Five-Year Planning Project of the Scientific and Technological Department of China (2011BAI11B02)2014 Special fund for scientific research in the public interest by National Health and Family Planning Commission of the People’s Republic of China (No. 201402001)
文摘Background Diabetes is frequently associated with poor prognosis among acute myocardial infarction(AMI)patients.Patients with these comorbidities often have atypical symptoms and subsequent delay in treatment.Few studies have reported detailed AMI symptoms in patients with diabetes.This study compared AMI symptoms and presentation characteristics between diabetics and non-diabetics.Methods We included patients from the China AMI registry diagnosed with AMI between January 2013 and September 2014.Baseline characteristics,symptomology,and delay in treatment were compared between diabetics and non-diabetics.Multivariable logistic regression analysis was used to explore independent predictors of atypical symptoms.Results A total of 4450(20.2%)patients had diabetes.They were older,more often women,higher in body mass index,and more likely to have non-ST segment elevation myocardial infarction.Fewer diabetic patients presented with persistent precordial chest pain(63.1%vs.68%,P<0.0001),diaphoresis(60.1%vs.65.6%,P<0.0001),fatigue(16.7%vs.18.3%,P=0.0123),and incontinence(0.4%vs.0.7%,P=0.0093).Time to hospital presentation was longer among patients with diabetes than those without.In multivariable analysis,diabetes was identified as an independent predictor of atypical symptoms(OR:1.112,95%CI:1.034?1.196).Conclusions Our study is the first large-scale study providing evidence that diabetics are less likely to present with typical chest pain and more likely to experience treatment delay when suffering from an AMI.Our results may increase clinician awareness of recognizing AMI patients rapidly to reduce diagnosis and treatment delay,particularly in the context of diabetes.
文摘Background:Patients with ST-segment elevation myocardial infarction(STEMI)who present without typical chest pain are associated with a poor outcome.However,whether angiographic characteristics are related to a higher risk of mortality in this population is unclear.This study aimed to investigate whether the higher mortality risk in patients with STEMI without chest pain could be explained by their"high-risk"angiographic characteristics.Methods:We used data of 12,145 patients with STEMI who was registered in China Acute Myocardial Infarction registry from January 2013 to September 2014.We compared the infarct-related artery(IRA),thrombolysis in myocardial infarction(TIMI)flow grade in the IRA,and other angiographic characteristics between patients without and those with chest pain.Multivariable logistic regression model was used to identify independent risk factor of in-hospital mortality.Results:The 2922(24.1%)patients with STEMI presented without typical chest pain.These patients had a higher TIMI flow grade(mean TIMI flow grade:1.00 vs.0.94,P=0.02)and a lower rate of IRA disease of the left anterior descending artery(44.6%vs.51.2%,χ^2=35.63,P<0.01)than did those with typical chest pain.Patients without chest pain were older,more likely to have diabetes,longer time to hospital and higher Killip classification,and less likely to receive optimal medication treatment and primary percutaneous coronary intervention and higher In-hospital mortality(3.3%vs.2.2%,χ^2=10.57,P<0.01).After adjusting for multi-variables,presentation without chest pain was still an independent predictor of in-hospital death among patients with STEMI(adjusted odds ratio:1.36,95%confidence interval:1.02–1.83).Conclusions:Presentation without chest pain is common and associated with a higher in-hospital mortality risk in patients with acute myocardial infarction.Our results indicate that their poor prognosis is associated with baseline patient characteristics and delayed treatment,but not angiographic lesion characteristics.Clinical trial re
文摘Background： Age-related macular degeneration （AMD） is a major cause of irreversible blindness, and awareness of this disease is important in the prevention of blindness. However, lack of public awareness of AMD was sbown in previous studies, and there was no report of AMD awareness in the Mainland of China. Therefore, the aim of our study was to assess the awareness of AMD and its risk factors among Beijing residents in China. Methods： A cross-sectional, computer-assisted, telephone investigation was conducted to measure the awareness of AMD among Beijing residents. All the contacts of potential respondents were randomly generated by computer. Only those above 18 years of age and willing to participate in the study were included. The questionnaire for the study was moditied from the AMD Alliance International Global Report. Pearson＇s Chi-square test and binary logistic regression analysis were used to identify the factors that affected the knowledge of AMD. Results： Among 385 Beijing residents who agreed to participale, the awareness of AMD was 6.8%, far below than that of cataract and glaucoma. Participants who were above 30 years of age （odds ratio [OR] 6.17, confidence interval [el] 1.44-26.57）, with experience of health-related work （OR 8.11, CI3.25-20.27）, and whose relatives/friends or themselves suffering from AMD （OR 32.18, CI11.29-91.68） had better AMD awareness. Among those familiar with AMD, only 35% of them identified smoking as a risk factor, and only 23.1% of the residents believed that smoking could lead to blindness. Conclusions： The sample of Chinese population had limited knowledge of AMD. Educational programs need to be carried out to raise public awareness of AMD.
文摘采用Waters Sun Fire C_(18)色谱柱(3.0 mm×150 mm,3.5μm),以乙腈-0.1%磷酸水溶液为流动相,梯度洗脱,体积流量0.4 mL·min^(-1),采用多波长切换法,柱温35℃,对18批身痛逐瘀汤物质基准样品进样分析。建立了经典名方身痛逐瘀汤物质基准UPLC指纹图谱,共标定了16个共有峰,使用《中药色谱指纹图谱相似度评价系统》(2012版)计算相似度,其相似度在0.911~0.988,并结合聚类分析(cluster analysis,CA)、主成分分析(principal component analysis,PCA)以及偏最小二乘法判别分析(partial least squares discrimination analysis,PLS-DA)、化学计量法,以16个共有峰进行评价,18批身痛逐瘀汤物质基准被分为2类,样品S1、S2、S5~S8、S14、S17分为一类,样品S3、S4、S9~S13、S15、S16、S18分为一类。筛选出差异性较大的11个成分,对差异较大且已知的羟基红花黄色素A、阿魏酸、苯甲酸、蜕皮激素及甘草酸铵5种有效成分进行含量测定,结合指纹图谱可以反映身痛逐瘀汤物质基准的整体概貌。该研究建立的经典名方身痛逐瘀汤物质基准UPLC指纹图谱及多成分含量测定方法,简单可行,重复性、稳定性良好,可为身痛逐瘀汤物质基准质量控制的研究提供依据。
基金the National Key R&D Program of China(No.2016YFA0501800 to D.Y.2016YFC1303303 to C.Y.)+5 种基金the NSFC Grant(No.31871431 and No.31821002 to D.Y.81572761,81772655 and 81972646 to Y.T.)the Innovative Research Team of High-Level Local Universities in Shanghai(to D.Y.)the Recruitment Program of Global Experts of China(Y.T.)the Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning(V.T.)Shanghai Rising-Star Program(Y.T.).
文摘Additional sex combs-like 1(ASXL1)interacts with BRCA1-associated protein 1(BAP1)deubiquitinase to oppose the polycomb repressive complex 1(PRC1)-mediated histone H2A ubiquitylation.Germline BAP1 mutations are found in a spectrum of human malignancies,while ASXL1 mutations recurrently occur in myeloid neoplasm and are associated with poor prognosis.Nearly all ASXL1 mutations are heterozygous frameshift or nonsense mutations in the middle or to a less extent the C-terminal region,resulting in the production of C-terminally truncated mutant ASXL1 proteins.How ASXL1 regulates specific target genes and how the C-terminal truncation of ASXL1 promotes leukemogen-esis are unclear.Here,we report that ASXL1 interacts with forkhead transcription factors FOXK1 and FOXK2 to regulate a subset of FOXK1/K2 target genes.We show that the C-terminally truncated mutant ASXL1 proteins are expressed at much higher levels than the wild-type protein in ASXL1 heterozygous leukemia cells,and lose the ability to interact with FOXK1/K2.Specific deletion of the mutant allele eliminates the expression of C-termi-nally truncated ASXL1 and increases the association of wild-type ASXL1 with BAP1,thereby restoring the expression of BAP1-ASXL1-FOXK1/K2 target genes,particularly those involved in glucose metabolism,oxygen sensing,and JAK-STAT3 signaling pathways.In addition to FOXK1/K2,we also identify other DNA-bind-ing transcription regulators including transcription factors(TFs)which interact with wild-type ASXL1,but not C-terminally truncated mutant.Our results suggest that ASXL1 mutations result in neomorphic alleles that contribute to leukemogenesis at least in part through dominantly inhibiting the wild-type ASXL1 from interacting with BAP1 and thereby impairing the function of ASXL1-BAP1-TF in regulating target genes and leukemia cell growth.
基金funded by the National Natural Science Foundation of China (NSFC) (41872128)the Science Foundation of China University of Petroleum, Beijing (No. 2462020YXZZ021).
文摘Halite and gypsum minerals in saline shale make the retention mechanism and chemical fractionation of residual oil unique. The Dongpu Depression in North China is a typically saline lacustrine basin with developing halite and gypsum. The effect of gypsum minerals on residual oil content and chemical fractionation remains unclear. In this study, shale samples with different gypsum contents were used in organic geochemical experiments, showing that the high total organic matter (TOC) content and type II kerogen leads to a high residual oil content, as shown by high values of volatile hydrocarbon (S1) and extractable organic matter (EOM). XRD and FE-SEM result indicate that the existence of gypsum in saline shale contributes to an enhanced pore space and a higher residual oil content in comparison to non-gypsum shale. Additionally, the increase in the gypsum mineral content leads to an increase in the saturated hydrocarbon percentage and a decrease in polar components percentage (resins and asphaltene). Furthermore, thermal simulation experiments on low-mature saline shale show that the percentage of saturated hydrocarbons in the residual oil is high and remains stable and that the storage space is mainly mesoporous (> 20 nm) in the oil expulsion stage. However, the saturated hydrocarbons percentage decreases rapidly, and oil exists in mesopores (> 20 nm and < 5 nm) in the gas expulsion stage. In general, gypsum is conducive to the development of pore space, the adsorption of hydrocarbons and the occurrence of saturated hydrocarbon, leading to large quantities of residual oil. The data in this paper should prove to be reliable for shale oil exploration in saline lacustrine basins.
基金supported by the National Natural Science Foundation of China (No.522020096)the Science and Technology Program of Gansu Province,China (No.22JR5RA284)the Young Elite Scientists Sponsorship Program by Gansu Association for Science and Technology (No.GXH20220530-19)。
文摘The water pollution derived from the discharge of heavy metals,antibiotics,dyes and surfactants wastewater,etc.has seriously affected human survival and ecological security.As an efficient and low-cost physical wastewater treatment process,the adsorption is a continuous hot spot in related scientific research and applications.Geopolymers are non-crystal or semi-crystalline materials with high-efficiency adsorption performance due to the alkali metal ions that balance the electronegative aluminosilicate skeleton can be efficiently replaced by other cations in the aqueous environment.The related studies of different application conditions,service objects and morphological differences of geopolymer adsorbents based on structure-function design have been in-depth exploration and investigation.This review aims to summarize the research progres s of the structure-function design based on the geopolymerization mechanism and kinetics and service requirements.An overview of service characteristics and progress of geopolymers in the wastewater treatment field(e.g.,dyes,heavy metals,radionuclides,surfactants,antibiotics,ammonium,phosphorus,nitrogen and CO_(2),etc.)are systematically discussed.And the evolution and development of morphological differences and the relationship of structure-function design of geopolymer adsorbents were compared and reviewed.Finally,the challenge worth overcoming,the trends worth considering and perspectives worth developing are highlighted.
文摘Background：Paroxysmal kinesigenic dyskinesia （PKD） is a rare movement disorder characterized by recurrent dystonic or choreoathetoid attacks triggered by sudden voluntary movements.Under the condition of psychological burden,some patients＆#39; attacks may get worsened with longer duration and higher frequency.This study aimed to assess nonmotor symptoms and quality of life of patients with PKD in a large population.Methods：We performed a cross-sectional survey in 165 primary PKD patients from August 2008 to October 2016 in Rui Jin Hospital,using Symptom Check List-90-Revised （SCL-90-R）,World Health Organization Quality of Life-100 （WHOQoL-100）,Self-Rating Depression Scale,and Self-Rating Anxiety Scale.We evaluated the differences of SCL-90-R and WHOQOL-100 scores in patients and Chinese normative data （taken from literature） by using the unpaired Student＆#39;s t-test.We applied multivariate linear regression to analyze the relationships between motor manifestations,mental health,and quality of life among PKD patients.Results：Compared with Chinese normative data taken from literature,patients with PKD exhibited significantly higher （worse） scores across all SCL-90-R subscales （somatization,obsessive-compulsive,interpersonal sensitivity,depression,anxiety,hostility,phobic anxiety,paranoid ideation,and psychoticism;P =0.000 for all） and significantly lower （worse） scores of five domains in WHOQoL-100 （physical domain,psychological domain,independence domain,social relationship domain,and general quality of life;P =0.000 for all）.Nonremission of dyskinesia episodes （P =0.011） and higher depression score （P =0.000） were significantly associated with lower levels of quality of life.The rates of depression and anxiety in patients with PKD were 41.2% （68/165） and 26.7% （44/165）,respectively.Conclusions：Depression,anxiety,and low levels of quality of life were prevalent in patients with PKD.Co-occurrence of depression and anxiety was common among these patients.R
