Objectives The objective of this study was to explore the correlation between the distribution of traditional Chinese medicine(TCM)syndromes and molecular types of breast cancer in the perichemotherapy period.Methods ...Objectives The objective of this study was to explore the correlation between the distribution of traditional Chinese medicine(TCM)syndromes and molecular types of breast cancer in the perichemotherapy period.Methods A total of 325 cases with perichemotherapy breast cancer was classified according to syndrome differentiation in TCM,and R×C table x2 test was used to examine and analyze the relationship between TCM syndromes and molecular types of breast cancer in the perichemotherapy period.Results(1)In the early stage of chemotherapy,there was no significant difference in the distribution of different TCM syndromes among molecular types,mainly liver depression syndrome and liver depression and phlegm coagulation syndrome(p>0.05).(2)In the middle stage of chemotherapy,there were significant differences in the distribution of spleen deficiency and phlegm-dampness syndrome among HER-2 positive(HR positive),HER-2 positive(HR negative),and Luminal Atype,Luminal B type(HER-2 negative),and triple-negative type(p<0.01).(3)After chemotherapy,there were significant differences in the distribution of spleen and kidney yang deficiency syndrome and marrow sea insufficiency syndrome among HER-2 positive(HR negative),triple-negative type,and HER-2 positive(HR positive),Luminal A type,Luminal B type(HER-2 negative),and triple-negative type(p<0.01).Conclusion(1)In the middle stage of chemotherapy,HER-2 positive(HR positive)and HER-2 positive(HR negative)are more likely to show spleen deficiency and phlegmdampness syndrome than other molecular types.(2)In the late stage of chemotherapy,the HER-2 positive(HR negative)and triple-negative type is more likely to show spleenkidney yang deficiency syndrome than other molecular types,and the triple-negative type is more likely to show marrow sea insufficiency syndrome than other molecular types.展开更多
BACKGROUND The coronavirus disease 2019(COVID-19)pandemic remains a major global public health threat,and ongoing viral mutations continue to complicate control efforts.To inform local prevention strategies,this study...BACKGROUND The coronavirus disease 2019(COVID-19)pandemic remains a major global public health threat,and ongoing viral mutations continue to complicate control efforts.To inform local prevention strategies,this study investigated the epidemiological and molecular characteristics of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)in Lu’an city from 2020 to 2022,and analyzed their association with clinical outcomes.AIM To analyze the molecular epidemiology and risk factors for severe COVID-19,and provide a scientific basis for guiding local epidemic prevention and control strategies.METHODS Biological samples were collected from confirmed COVID-19 patients in Lu’an city between 2020 and 2022.Complete SARS-CoV-2 genomic sequences were obtained through sequencing.Epidemiological and clinical data were collected concurrently for each patient.Statistical analyses were conducted using IBM SPSS 29.0 software to assess risk factors associated with severe COVID-19.Viral genomic sequences were analyzed using MEGA software to characterize the molecular features of circulating SARS-CoV-2 strains.RESULTS Sequencing identified the original SARS-CoV-2 strain in samples from 2020-2021,while the Omicron variant was detected in samples from 2022.The predominant clinical manifestations among patients were cough(67.03%)and fever(65.56%).Laboratory and imaging examinations revealed that 78.85%of infected patients exhibited abnormalities on chest computed tomography scans.Comprehensive analyses demonstrated that the temporal and spatial distribution of prevalent SARS-CoV-2 strains in Lu’an city was consistent with national trends in China.The presence of underlying comorbidities,including hypertension,diabetes,and liver injury,was significantly associated with progression to severe COVID-19.This risk showed little correlation with the specific SARS-CoV-2 variant type.CONCLUSION The development of severe COVID-19 was predominantly associated with pre-existing comorbidities rather than with SARS-CoV-2 variant type.These findings provide evidence to inform targeted clinical management and public health planning for vulnerable populations.展开更多
Type-Ⅱ InAs/GaSb superlattiees made of 13 InAs monolayers (MLs) and 7 GaSb MLs are grown on GaSb substrates by solid source molecular beam epitaxy. To obtain lattice-matched structures, thin InSb layers are inserte...Type-Ⅱ InAs/GaSb superlattiees made of 13 InAs monolayers (MLs) and 7 GaSb MLs are grown on GaSb substrates by solid source molecular beam epitaxy. To obtain lattice-matched structures, thin InSb layers are inserted between InAs and GaSb layers. We complete a series of experiments to investigate the influence of the InSb deposition time, Ⅴ/Ⅲ beam-equivalent pressure ratio and interruption time between each layer, and then characterize the superlattice (SL) structures with high-resolution x-ray diffraction and atomic force microscopy. The optimized growth parameters are applied to grow the 100-period SL structure, resulting in the full-width half-maximum of 29.55 arcsee for the first SL satellite peak and zero lattice-mismatch between the zero-order SL peak and the GaSb substrate peak.展开更多
The new crystalline V-Ti-silicalite with mesoporous MCM-41 type molecular sieve structure is synthesized hydrothermally; The framework IR spectra associated with ESR, Si-29 MAS NMR, DRS and XPS data shows that V and T...The new crystalline V-Ti-silicalite with mesoporous MCM-41 type molecular sieve structure is synthesized hydrothermally; The framework IR spectra associated with ESR, Si-29 MAS NMR, DRS and XPS data shows that V and Ti are simultaneously incorporated into V-TiMCM-41 framework.展开更多
目的研究昆明地区RhD初筛阴性献血者RHD基因的多态性及其分子机制,为建立区域性献血者RHD基因数据库提供数据支持。方法选择昆明地区2023年11月-2024年8月初筛RhD阴性标本218例,采用间接抗球蛋白试验法(IAT)进行RhD阴性确认,采用盐水试...目的研究昆明地区RhD初筛阴性献血者RHD基因的多态性及其分子机制,为建立区域性献血者RHD基因数据库提供数据支持。方法选择昆明地区2023年11月-2024年8月初筛RhD阴性标本218例,采用间接抗球蛋白试验法(IAT)进行RhD阴性确认,采用盐水试管法进行RhCE表型鉴定。提取全血基因组DNA,采用PCR-SSP法/SSP荧光PCR染料法进行RHD基因分型,对无法确定基因型的标本进行RHD基因1~10外显子Sanger测序分析。结果检出RhD真阴性表型179例(82.11%),其中RHD*01N.01(RHD全缺失)型154例(86.03%),表型以ccee为主(87.01%);携带非功能性RHD等位基因25例(13.97%),包括RHD*01N.0320例、RHD*01N.163例、RHD*01N.051例、RHD*01N.591例,表型以Ccee为主(64%)。检出D变异型39例(15.89%),其中RHD*DEL1(c.1227G>A)型34例,表型均为C抗原阳性(Ccee 27例,CCee 7例);弱D/部分D型4例,包括RHD*DVI.32例、RHD*weak D type 711例、RHD*weak D type1081例;另检出1例RHD*01/RHD*01N.01,基因型与血清学表型结果不一致。RHD*01N.01女性献血者不规则抗体(主要为抗-D)阳性率9.84%。结论昆明地区RhD初筛阴性献血者RHD基因多态性显著,RhD真阴性比例高于国内部分地区,D变异型以“亚洲型”DEL为主,比例低于国内部分地区。研究结果为本地区RhD阴性和D变异型个体精准输血提供了理论和数据支持。展开更多
基金supported by 2022 Special Project of Henan ProvinceChineseMedicineScientificResearch(2022ZY1048)2023 Special Project of Henan Province Chinese Medicine Scientific Research(2023YZ2043)Natural Science Foundation of Henan Province(232300421183).
摘要Objectives The objective of this study was to explore the correlation between the distribution of traditional Chinese medicine(TCM)syndromes and molecular types of breast cancer in the perichemotherapy period.Methods A total of 325 cases with perichemotherapy breast cancer was classified according to syndrome differentiation in TCM,and R×C table x2 test was used to examine and analyze the relationship between TCM syndromes and molecular types of breast cancer in the perichemotherapy period.Results(1)In the early stage of chemotherapy,there was no significant difference in the distribution of different TCM syndromes among molecular types,mainly liver depression syndrome and liver depression and phlegm coagulation syndrome(p>0.05).(2)In the middle stage of chemotherapy,there were significant differences in the distribution of spleen deficiency and phlegm-dampness syndrome among HER-2 positive(HR positive),HER-2 positive(HR negative),and Luminal Atype,Luminal B type(HER-2 negative),and triple-negative type(p<0.01).(3)After chemotherapy,there were significant differences in the distribution of spleen and kidney yang deficiency syndrome and marrow sea insufficiency syndrome among HER-2 positive(HR negative),triple-negative type,and HER-2 positive(HR positive),Luminal A type,Luminal B type(HER-2 negative),and triple-negative type(p<0.01).Conclusion(1)In the middle stage of chemotherapy,HER-2 positive(HR positive)and HER-2 positive(HR negative)are more likely to show spleen deficiency and phlegmdampness syndrome than other molecular types.(2)In the late stage of chemotherapy,the HER-2 positive(HR negative)and triple-negative type is more likely to show spleenkidney yang deficiency syndrome than other molecular types,and the triple-negative type is more likely to show marrow sea insufficiency syndrome than other molecular types.
基金Supported by the Science and Technology Research Key Project of Anhui Provincial Health Commission,No.AHWJ2021a028.
摘要BACKGROUND The coronavirus disease 2019(COVID-19)pandemic remains a major global public health threat,and ongoing viral mutations continue to complicate control efforts.To inform local prevention strategies,this study investigated the epidemiological and molecular characteristics of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)in Lu’an city from 2020 to 2022,and analyzed their association with clinical outcomes.AIM To analyze the molecular epidemiology and risk factors for severe COVID-19,and provide a scientific basis for guiding local epidemic prevention and control strategies.METHODS Biological samples were collected from confirmed COVID-19 patients in Lu’an city between 2020 and 2022.Complete SARS-CoV-2 genomic sequences were obtained through sequencing.Epidemiological and clinical data were collected concurrently for each patient.Statistical analyses were conducted using IBM SPSS 29.0 software to assess risk factors associated with severe COVID-19.Viral genomic sequences were analyzed using MEGA software to characterize the molecular features of circulating SARS-CoV-2 strains.RESULTS Sequencing identified the original SARS-CoV-2 strain in samples from 2020-2021,while the Omicron variant was detected in samples from 2022.The predominant clinical manifestations among patients were cough(67.03%)and fever(65.56%).Laboratory and imaging examinations revealed that 78.85%of infected patients exhibited abnormalities on chest computed tomography scans.Comprehensive analyses demonstrated that the temporal and spatial distribution of prevalent SARS-CoV-2 strains in Lu’an city was consistent with national trends in China.The presence of underlying comorbidities,including hypertension,diabetes,and liver injury,was significantly associated with progression to severe COVID-19.This risk showed little correlation with the specific SARS-CoV-2 variant type.CONCLUSION The development of severe COVID-19 was predominantly associated with pre-existing comorbidities rather than with SARS-CoV-2 variant type.These findings provide evidence to inform targeted clinical management and public health planning for vulnerable populations.
基金Supported by the National Basic Research Program of China under Grant Nos 2015CB351902,2015CB932402 and 2012CB619203the National Natural Science Foundation of China under Grant Nos 61177070,11374295 and U1431231the National Key Research Program of China under Grant No 2011ZX01015-001
摘要Type-Ⅱ InAs/GaSb superlattiees made of 13 InAs monolayers (MLs) and 7 GaSb MLs are grown on GaSb substrates by solid source molecular beam epitaxy. To obtain lattice-matched structures, thin InSb layers are inserted between InAs and GaSb layers. We complete a series of experiments to investigate the influence of the InSb deposition time, Ⅴ/Ⅲ beam-equivalent pressure ratio and interruption time between each layer, and then characterize the superlattice (SL) structures with high-resolution x-ray diffraction and atomic force microscopy. The optimized growth parameters are applied to grow the 100-period SL structure, resulting in the full-width half-maximum of 29.55 arcsee for the first SL satellite peak and zero lattice-mismatch between the zero-order SL peak and the GaSb substrate peak.
摘要The new crystalline V-Ti-silicalite with mesoporous MCM-41 type molecular sieve structure is synthesized hydrothermally; The framework IR spectra associated with ESR, Si-29 MAS NMR, DRS and XPS data shows that V and Ti are simultaneously incorporated into V-TiMCM-41 framework.
摘要目的研究昆明地区RhD初筛阴性献血者RHD基因的多态性及其分子机制,为建立区域性献血者RHD基因数据库提供数据支持。方法选择昆明地区2023年11月-2024年8月初筛RhD阴性标本218例,采用间接抗球蛋白试验法(IAT)进行RhD阴性确认,采用盐水试管法进行RhCE表型鉴定。提取全血基因组DNA,采用PCR-SSP法/SSP荧光PCR染料法进行RHD基因分型,对无法确定基因型的标本进行RHD基因1~10外显子Sanger测序分析。结果检出RhD真阴性表型179例(82.11%),其中RHD*01N.01(RHD全缺失)型154例(86.03%),表型以ccee为主(87.01%);携带非功能性RHD等位基因25例(13.97%),包括RHD*01N.0320例、RHD*01N.163例、RHD*01N.051例、RHD*01N.591例,表型以Ccee为主(64%)。检出D变异型39例(15.89%),其中RHD*DEL1(c.1227G>A)型34例,表型均为C抗原阳性(Ccee 27例,CCee 7例);弱D/部分D型4例,包括RHD*DVI.32例、RHD*weak D type 711例、RHD*weak D type1081例;另检出1例RHD*01/RHD*01N.01,基因型与血清学表型结果不一致。RHD*01N.01女性献血者不规则抗体(主要为抗-D)阳性率9.84%。结论昆明地区RhD初筛阴性献血者RHD基因多态性显著,RhD真阴性比例高于国内部分地区,D变异型以“亚洲型”DEL为主,比例低于国内部分地区。研究结果为本地区RhD阴性和D变异型个体精准输血提供了理论和数据支持。