We herein present a case involving a 41-year-old woman in whom ultrasound examination revealed multiple liver hemangiomas more than 3 years ago.Follow-up ultrasound examination revealed that the masses had significant...We herein present a case involving a 41-year-old woman in whom ultrasound examination revealed multiple liver hemangiomas more than 3 years ago.Follow-up ultrasound examination revealed that the masses had significantly increased;the largest was located in the right lobe(about 8.2 cm×7.4 cm×6.0cm).Abdominal multidetector computed tomographyrevealed multiple well-circumscribed,heterogeneous,hypodense masses(largest,6.4 cm×6.3 cm×5.0cm)with significant contrast enhancement during the arterial and portal phases and with contrast washout and peripheral enhancement during the delayed phases.Magnetic resonance images demonstrated multiple well-circumscribed,heterogeneous,hypointense hepatic masses with significant contrast enhancement(largest,6.4 cm×6.5 cm×5.1 cm);multiple enlarged porta lymph nodes;and multiple s l i g h t l y e n l a rg e d re t ro p e r i t o n e a l l y m p h n o d e s.Histological and immunohistochemical examination of the right mass biopsy specimen suggested a malignant neoplasm that had originated from a neuroendocrine cell type(grade 2 well-differentiated neuroendocrine carcinoma).After performing a systemic examination to exclude metastasis from an extrahepatic primary site,we considered that the masses had arisen from a primary hepatic neuroendocrine tumor with multiple liver metastases.The patient underwent transcatheter arterial chemoembolization using a combination of oxaliplatin(150 mg)mixed with one bottle of gelatin sponge particles(560-710μm)and lipiodol(6 m L).Primary neuroendocrine tumors of the liver are extremely rare.This case is interesting because of the rarity of this neoplasm and previous misdiagnosis as multiple liver hemangiomas.Previously reported cases in the literature are also reviewed.展开更多
Breast cancer can metastasize to other organs following initial treatment.Bones, liver, and the lung are the most common sites of breast cancer metastases.The digestive tract, on the other hand, is rarely involved.The...Breast cancer can metastasize to other organs following initial treatment.Bones, liver, and the lung are the most common sites of breast cancer metastases.The digestive tract, on the other hand, is rarely involved.The incidence of mesorectal metastasis(a special category of rectal metastases) from breast cancer has not been described before.The case reported herein concerns a 68-year-old woman who underwent mastectomy.A pelvic mass with no symptoms was subsequently identified by computed tomography in the patient.We ultimately confirmed that this mass was a metastasis from breast cancer located in the mesorectum using surgical exploration and pathology results.展开更多
Objective:To evaluate the value of18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in the diagnosis of cervical lymph node metastasis of oral carcinoma.Methods:China national kn...Objective:To evaluate the value of18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in the diagnosis of cervical lymph node metastasis of oral carcinoma.Methods:China national knowledge infrastructure, Wanfang, Chinese sci-tech journal database, PubMed, EMbase, the Cochrane Library and Web of Science were searched for18F-FDG PET/CT in cervical lymph node metastasis oral cancer. Literature screening, data extraction and literature quality evaluation were carried out independently by two researchers according to the unified classification criteria. Stata13.0 software and Meta-Disc1.4 software were used for meta-analysis.Results: A total of 14 studies with 849 cases of patients with cervical metastasis of oral cancer were included, among which 9 studies were conducted on patients, with a total of 299 patients, and 5 studies were conducted on lymph nodes, with 1965 patients with cervical lymph node proved pathologically. The results of meta analysis showed that18F-FDG PET/CT had good sensitivity and specificity in the diagnosis of cervical lymph node metastasis of oral cancer. The results showed that sensitivity = 0.81 (95% CI: 0.73-0.87), specificity = 0. 90 (95% CI: 0.83-0.94), combined likelihood ratio = 7. 9 (95% CI: 4.9-12.7), negative likelihood ratio = 0. 21 (95% CI: 0.15-0.30), diagnostic odds ratio=37 (95% CI: 20-67), and receiver operating characteristic curve =0.91 (95% CI: 0.89-0.94). Conclusions:18F-FDG PET/CT has high sensitivity and specificity in the diagnosis of cervical lymph node metastasis, and can be used as an important preoperative evaluation method for oral cancer.展开更多
目的系统评价妊娠早期循环metastin/kisspeptin水平与自然流产(SAB)的相关性。方法计算机检索PubMed、EMbase、The Cochrane Library、Web of Science、中国知网、万方、维普中文科技期刊数据库和中国生物医学文献数据库,搜集有关妊娠...目的系统评价妊娠早期循环metastin/kisspeptin水平与自然流产(SAB)的相关性。方法计算机检索PubMed、EMbase、The Cochrane Library、Web of Science、中国知网、万方、维普中文科技期刊数据库和中国生物医学文献数据库,搜集有关妊娠早期循环kisspeptin水平与SAB相关性的研究,检索文献的时间设置均为从建库至2020年6月。由2名研究者独立筛选文献、提取资料并评价纳入研究的偏倚风险后,采用RevMan5.3软件进行meta分析。结果共纳入3个巢式病例对照研究、2个病例对照研究和1个前瞻性队列研究,包括SAB患者157例,作为对照的正常宫内妊娠(IUP)孕妇1018例。meta分析显示,SAB组kisspeptin水平低于IUP组[SMD=-1.68,95%CI:-2.65~-0.72,P=0.0006]。结论循环metastin/kisspeptin水平降低与SAB有一定相关性,受纳入研究数量和质量的限制,上述结论尚待更多高质量研究予以验证。展开更多
In microwave communication systems,focusing and imaging have attracted widespread attention due to their application prospects in the information processing and communication fields.Most existing multi-channel focusin...In microwave communication systems,focusing and imaging have attracted widespread attention due to their application prospects in the information processing and communication fields.Most existing multi-channel focusing and imaging are implemented by interleaved metasurfaces.However,the disadvantages of their large size and low efficiency limit their practical applications in large-capacity and low-loss integrated systems.To solve these issues,here,we propose a non-interleaved polarization-frequency multiplexing metasurface for high-efficiency multi-channel focusing and imaging.The meta-atoms of the non-interleaved metasurface are composed of a metallic ground plate,two dielectric layers,a larger cross-shaped metal structure,and a smaller cross-shaped metal structure embedded by a circular metal aperture.By altering the size of two cross-shaped structures,the designed meta-atom can obtain the independent complete 2π phase coverage with high reflection efficiency at two different frequency ranges for two orthogonal linear polarization(LP)incidences,realizing polarization multiplexing and frequency multiplexing.Moreover,two types of metasurfaces based on the above meta-atoms are designed to realize multi-channel focusing and imaging with high efficiency.As a proof,the focusing metasurface is fabricated and measured,and the measured results are well consistent with simulated results.Therefore,the proposed scheme has the advantages of high efficiency,multi-channel,and compact size,which possesses broad application prospects in low-loss and multichannel communication integrated systems.展开更多
To the Editor:In recent years,the treatment for metastatic hormone-sensitive prostate cancer(mHSPC)has undergone rapid developments.Docetaxel(DOC)or androgen receptor-targeted agent(ARTA)and androgen deprivation thera...To the Editor:In recent years,the treatment for metastatic hormone-sensitive prostate cancer(mHSPC)has undergone rapid developments.Docetaxel(DOC)or androgen receptor-targeted agent(ARTA)and androgen deprivation therapy(ADT)are the most commonly used systemic therapies.Multiple meta-analyses or network meta-analyses(NMAs)have been undertaken to evaluate and contrast the various treatment options available for mHSPC.However,the clinical efficacy of DOC in triplet therapy for mHSPC is yet to be confirmed,especially in categorizing the patients based on both volume of disease and timing of metastases.Bringing these controversies to light may have a timely and important impact on further clinical trials.Moreover,based on these trials and our NMA study,triplet therapy has evident benefits on overall survival(OS)and progression-free survival(PFS)in patients with mHSPC.The NMA study presented in this thesis is one of the first studies that assessed the efficacy of DOC and selected patients who will benefit from triplet therapy.展开更多
In modern science and technology,on-demand control of the polarization and wavefront of electromagnetic(EM)waves is crucial for compact opto-electronic systems.Metasurfaces composed of subwavelength array structures i...In modern science and technology,on-demand control of the polarization and wavefront of electromagnetic(EM)waves is crucial for compact opto-electronic systems.Metasurfaces composed of subwavelength array structures inject infinite vitality to shape this fantastic concept,which has fundamentally changed the way humans engineer matter–wave interactions.However,achieving full-space arbitrarily polarized beams with independent wavefronts in broadband on a single metasurface aperture still remains challenging.Herein,the authors propose a generic method for broadband transmission-reflection-integrated wavefronts shaping with multichannel arbitrary polarization regulation from 8 to 16 GHz,which is based on the chirality effect of full-space non-interleaved tetrameric meta-molecules.Through superimposing eigen-polarization responses of the two kinds of enantiomers,the possibility for high-efficiency evolution of several typical polarization states with specific wavefronts is demonstrated.As proofs-of-concept,the feasibility of our methodology is validated via implementing miscellaneous functionalities,including circularly polarized(CP)beam splitting,linearly polarized(LP)vortex beams generation,and CP and LP multifoci.Meanwhile,numerous simulated and experimental results are in excellent agreement with the theoretical predictions.Encouragingly,this proposed approach imaginatively merges broadband polarization and phase control into one single full-space and shared-aperture EM device,which can extremely enhance the functional richness and information capacity in advanced integrated systems.展开更多
中药不论在直接抑制肿瘤生长,还是辅助西医治疗肿瘤方面都发挥着不容忽视的作用.本文经检索中国知网、万方、维普、Pubmed、Web of Science等数据库,纳入中药汤剂联合化疗治疗非小细胞肺癌(NSCLC)的随机对照试验,通过Meta、用药规律、...中药不论在直接抑制肿瘤生长,还是辅助西医治疗肿瘤方面都发挥着不容忽视的作用.本文经检索中国知网、万方、维普、Pubmed、Web of Science等数据库,纳入中药汤剂联合化疗治疗非小细胞肺癌(NSCLC)的随机对照试验,通过Meta、用药规律、网络药理学和细胞实验等分析方法系统评价中药联合化疗治疗NSCLC的疗效、安全性及作用机制,最终纳入56篇文献进行统计分析,共4992例患者、57首处方、172味中药.结果显示,中药联合化疗治疗组的1年生存率、肝功能损伤、总有效率、胃肠道不良反应等方面均优于单纯化疗组.用药频次>20的有7味:药味以甘苦为主,药性以寒温为主,主要归为肺经和肝经.得到5个高频药物聚类,关联规则分析得到置信度最高的4条药物组合为:天花粉-麦冬、玉竹-麦冬、北沙参-玉竹-麦冬、白术-黄芪-党参.收集到核心中药成分潜在作用靶点与NSCLC交集靶点126个;PPI分析得到3个核心靶点:AKT1、EGFR、SRC;KEGG分析表明关键通路为PI3K-Akt信号通路;筛选得到3个关键成分:木犀草素、槲皮素、山柰酚;分子对接结果表明关键成分和核心靶点均能稳定结合.细胞实验结果表明,木犀草素可有效抑制A549细胞的增殖、活力和迁移,诱导其发生凋亡,并使其形态发生变化.本文结果表明,中药联合化疗治疗NSCLC可以提高其临床疗效、降低化疗的毒副作用;黄芪、麦冬、党参、北沙参等核心中药多种成分可通过多靶点、多途径协同治疗NSCLC;关键中药的核心成分木犀草素可抑制A549细胞的增殖、活力和迁移,并可诱导其发生凋亡.展开更多
目的基于贝叶斯网状Meta分析系统评价不同血管化骨瓣在下颌骨缺损修复重建中的存活率。方法计算机检索PubMed、EBSCO、Scopus、Web of Science、Cochrane Library、WanFang Data和CNKI数据库,搜集与研究目的相关的临床研究,检索时限均...目的基于贝叶斯网状Meta分析系统评价不同血管化骨瓣在下颌骨缺损修复重建中的存活率。方法计算机检索PubMed、EBSCO、Scopus、Web of Science、Cochrane Library、WanFang Data和CNKI数据库,搜集与研究目的相关的临床研究,检索时限均从建库至2024年2月。由2名研究者独立筛选文献、提取资料并评价纳入研究的偏倚风险后,采用R软件进行贝叶斯网状Meta分析。结果共纳入24项研究,包括1615名患者。Meta分析结果显示腓骨游离瓣、旋髂深动脉髂骨瓣、肩胛骨瓣及携带桡骨的前臂桡侧皮瓣用于下颌骨重建的术后存活率分别为95.62%、94.09%、98.16%和93.75%。网状Meta分析结果显示各组织瓣术后存活率之间的差异均无统计学意义。结论当前证据表明,不同血管化骨瓣在下颌骨缺损修复重建中的存活率相似。受纳入研究数量和质量的限制,上述结论尚待更多高质量研究予以验证。展开更多
目的评价利妥昔单抗(RTX)治疗原发性干燥综合征(pSS)的疗效及安全性。方法检索Cochrane Library、PubMed、Embase、Medline、Web of Science、维普网、中国知网、万方数据等数据库,收集RTX(试验组)对比安慰剂(对照组)治疗pSS的随机对照...目的评价利妥昔单抗(RTX)治疗原发性干燥综合征(pSS)的疗效及安全性。方法检索Cochrane Library、PubMed、Embase、Medline、Web of Science、维普网、中国知网、万方数据等数据库,收集RTX(试验组)对比安慰剂(对照组)治疗pSS的随机对照试验(RCT),检索时限为建库至2024年2月。对文献进行资料提取和质量评价后,采用RevMan 5.3软件进行Meta分析。结果最终纳入7篇RCT,共计518例患者。Meta分析结果显示,试验组患者的欧洲抗风湿病联盟干燥综合征疾病活动指数(ESSDAI)评分[MD=-1.17,95%CI(-1.52,-0.82),P<0.00001]、口干视觉模拟(VAS)评分[MD=-3.97,95%CI(-5.08,-2.86),P<0.00001]均显著低于对照组,未刺激唾液流速[SMD=0.64,95%CI(0.41,0.87),P<0.00001]、希尔默试验(Schirmer)评分[MD=0.19,95%CI(0.18,0.20),P<0.00001]均显著高于对照组;两组患者的应答率[RD=0.10,95%CI(-0.04,0.23),P=0.16]、疲乏VAS评分[MD=-12.50,95%CI(-35.14,10.15),P=0.28]、欧洲抗风湿病联盟干燥综合征患者自我报告指数(ESSPRI)评分[MD=0.33,95%CI(-0.53,1.18),P=0.46]、健康调查简表-物理部分(SF36-PCS)评分[MD=0.90,95%CI(-2.97,4.78),P=0.65]、健康调查简表-心理部分(SF36-MCS)评分[MD=0.11,95%CI(-0.41,0.63),P=0.68]、总唾液腺超声评分[SMD=-1.91,95%CI(-4.01,0.19),P=0.07]、不良反应发生率[OR=1.15,95%CI(0.62,2.13),P=0.66]比较,差异均无统计学意义。结论RTX可改善pSS患者的ESSDAI评分、未刺激唾液流速、Schirmer评分和口干VAS评分,且安全性较好,但对改善疲乏VAS评分、ESSPRI评分、SF36-PCS评分、SF36-MCS评分和应答率无显著优势。展开更多
目的:评价中医内治法与甲氨蝶呤(methotrexate,MTX)联合使用治疗寒湿痹阻型类风湿关节炎(rheumatoid arthritis,RA)的临床疗效与安全性。方法:检索中国知网、重庆维普、万方数据、中国生物医学文献数据库、Web of Science、PubMed、EMb...目的:评价中医内治法与甲氨蝶呤(methotrexate,MTX)联合使用治疗寒湿痹阻型类风湿关节炎(rheumatoid arthritis,RA)的临床疗效与安全性。方法:检索中国知网、重庆维普、万方数据、中国生物医学文献数据库、Web of Science、PubMed、EMbase数据库及Cochrane图书馆8个中外文数据库中关于中药内治法联合MTX治疗寒湿痹阻型RA的随机对照试验(randomized controlled trials,RCTs),时间从建库截止至2023年11月。由2名人员根据纳入与排除标准,独立进行文献筛选、数据提取、质量评价、并交叉核对结果,采用RevMan 5.3软件进行Meta分析。结果:共纳入15个RCTs,共1356例寒湿痹阻型类风湿关节炎患者。Meta分析显示,在有效率升高(RR=1.20,95%CI:1.14~1.27,P<0.00001)、晨僵时间(SMD=0.75,95%CI:0.59~0.90,P<0.00001)、肿胀关节数(MD=0.59,95%CI:0.50~0.68,P<0.00001)、压痛关节数(MD=0.71,95%CI:0.58~0.84,P<0.00001)、ESR(MD=6.16,95%CI:5.02~7.31,P<0.00001)、CRP(MD=1.48,95%CI:0.71~2.25,P=0.0002)、不良反应(RR=0.45,95%CI:0.31~0.65,P<0.0001)方面的影响试验组优于对照组,差异有统计学意义;对TNF-α(MD=-0.17,95%CI:-1.41~1.08,P=0.79)的影响差异无统计学意义。其中13篇RCT关注了不良反应,有7个研究详细报告了不良反应发生率,所有文献均未见严重的不良反应报道。结论:基于当前临床证据初步得出,中医内治法联合甲氨蝶呤治疗寒湿痹阻型RA的有效性和安全性可能优于单纯使用MTX治疗,但尚需要高质量的RCT验证。展开更多
文摘We herein present a case involving a 41-year-old woman in whom ultrasound examination revealed multiple liver hemangiomas more than 3 years ago.Follow-up ultrasound examination revealed that the masses had significantly increased;the largest was located in the right lobe(about 8.2 cm×7.4 cm×6.0cm).Abdominal multidetector computed tomographyrevealed multiple well-circumscribed,heterogeneous,hypodense masses(largest,6.4 cm×6.3 cm×5.0cm)with significant contrast enhancement during the arterial and portal phases and with contrast washout and peripheral enhancement during the delayed phases.Magnetic resonance images demonstrated multiple well-circumscribed,heterogeneous,hypointense hepatic masses with significant contrast enhancement(largest,6.4 cm×6.5 cm×5.1 cm);multiple enlarged porta lymph nodes;and multiple s l i g h t l y e n l a rg e d re t ro p e r i t o n e a l l y m p h n o d e s.Histological and immunohistochemical examination of the right mass biopsy specimen suggested a malignant neoplasm that had originated from a neuroendocrine cell type(grade 2 well-differentiated neuroendocrine carcinoma).After performing a systemic examination to exclude metastasis from an extrahepatic primary site,we considered that the masses had arisen from a primary hepatic neuroendocrine tumor with multiple liver metastases.The patient underwent transcatheter arterial chemoembolization using a combination of oxaliplatin(150 mg)mixed with one bottle of gelatin sponge particles(560-710μm)and lipiodol(6 m L).Primary neuroendocrine tumors of the liver are extremely rare.This case is interesting because of the rarity of this neoplasm and previous misdiagnosis as multiple liver hemangiomas.Previously reported cases in the literature are also reviewed.
基金Supported by Affiliated Zhongshan Hospital of Dalian University,Dalian,Liaoning,China
文摘Breast cancer can metastasize to other organs following initial treatment.Bones, liver, and the lung are the most common sites of breast cancer metastases.The digestive tract, on the other hand, is rarely involved.The incidence of mesorectal metastasis(a special category of rectal metastases) from breast cancer has not been described before.The case reported herein concerns a 68-year-old woman who underwent mastectomy.A pelvic mass with no symptoms was subsequently identified by computed tomography in the patient.We ultimately confirmed that this mass was a metastasis from breast cancer located in the mesorectum using surgical exploration and pathology results.
文摘Objective:To evaluate the value of18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in the diagnosis of cervical lymph node metastasis of oral carcinoma.Methods:China national knowledge infrastructure, Wanfang, Chinese sci-tech journal database, PubMed, EMbase, the Cochrane Library and Web of Science were searched for18F-FDG PET/CT in cervical lymph node metastasis oral cancer. Literature screening, data extraction and literature quality evaluation were carried out independently by two researchers according to the unified classification criteria. Stata13.0 software and Meta-Disc1.4 software were used for meta-analysis.Results: A total of 14 studies with 849 cases of patients with cervical metastasis of oral cancer were included, among which 9 studies were conducted on patients, with a total of 299 patients, and 5 studies were conducted on lymph nodes, with 1965 patients with cervical lymph node proved pathologically. The results of meta analysis showed that18F-FDG PET/CT had good sensitivity and specificity in the diagnosis of cervical lymph node metastasis of oral cancer. The results showed that sensitivity = 0.81 (95% CI: 0.73-0.87), specificity = 0. 90 (95% CI: 0.83-0.94), combined likelihood ratio = 7. 9 (95% CI: 4.9-12.7), negative likelihood ratio = 0. 21 (95% CI: 0.15-0.30), diagnostic odds ratio=37 (95% CI: 20-67), and receiver operating characteristic curve =0.91 (95% CI: 0.89-0.94). Conclusions:18F-FDG PET/CT has high sensitivity and specificity in the diagnosis of cervical lymph node metastasis, and can be used as an important preoperative evaluation method for oral cancer.
文摘目的系统评价妊娠早期循环metastin/kisspeptin水平与自然流产(SAB)的相关性。方法计算机检索PubMed、EMbase、The Cochrane Library、Web of Science、中国知网、万方、维普中文科技期刊数据库和中国生物医学文献数据库,搜集有关妊娠早期循环kisspeptin水平与SAB相关性的研究,检索文献的时间设置均为从建库至2020年6月。由2名研究者独立筛选文献、提取资料并评价纳入研究的偏倚风险后,采用RevMan5.3软件进行meta分析。结果共纳入3个巢式病例对照研究、2个病例对照研究和1个前瞻性队列研究,包括SAB患者157例,作为对照的正常宫内妊娠(IUP)孕妇1018例。meta分析显示,SAB组kisspeptin水平低于IUP组[SMD=-1.68,95%CI:-2.65~-0.72,P=0.0006]。结论循环metastin/kisspeptin水平降低与SAB有一定相关性,受纳入研究数量和质量的限制,上述结论尚待更多高质量研究予以验证。
基金National Natural Science Foundation of China(62075052,6227419)National Key Research and Development Program of China(2024YFE0108300)+2 种基金Science and Technology Major Project of Guangxi,China(Gui Ke AA21077015,Gui Ke AA24263032)Science Foundation of the National Key Laboratory of Science and Technology on Advanced Composites in Special Environments(JCKYS2020603C009,6142905212711)Project of Innovative and Entrepreneurship Training Program for College Students in Heilongjiang Province(201810214105)。
文摘In microwave communication systems,focusing and imaging have attracted widespread attention due to their application prospects in the information processing and communication fields.Most existing multi-channel focusing and imaging are implemented by interleaved metasurfaces.However,the disadvantages of their large size and low efficiency limit their practical applications in large-capacity and low-loss integrated systems.To solve these issues,here,we propose a non-interleaved polarization-frequency multiplexing metasurface for high-efficiency multi-channel focusing and imaging.The meta-atoms of the non-interleaved metasurface are composed of a metallic ground plate,two dielectric layers,a larger cross-shaped metal structure,and a smaller cross-shaped metal structure embedded by a circular metal aperture.By altering the size of two cross-shaped structures,the designed meta-atom can obtain the independent complete 2π phase coverage with high reflection efficiency at two different frequency ranges for two orthogonal linear polarization(LP)incidences,realizing polarization multiplexing and frequency multiplexing.Moreover,two types of metasurfaces based on the above meta-atoms are designed to realize multi-channel focusing and imaging with high efficiency.As a proof,the focusing metasurface is fabricated and measured,and the measured results are well consistent with simulated results.Therefore,the proposed scheme has the advantages of high efficiency,multi-channel,and compact size,which possesses broad application prospects in low-loss and multichannel communication integrated systems.
基金funded by grants from the Shanghai Science Committee Foundation(No.19411967700)the National Natural Science Foundation of China(No.31570993)the Wu Jieping Medical Foundation(No.320.6750.2020-14-7).
文摘To the Editor:In recent years,the treatment for metastatic hormone-sensitive prostate cancer(mHSPC)has undergone rapid developments.Docetaxel(DOC)or androgen receptor-targeted agent(ARTA)and androgen deprivation therapy(ADT)are the most commonly used systemic therapies.Multiple meta-analyses or network meta-analyses(NMAs)have been undertaken to evaluate and contrast the various treatment options available for mHSPC.However,the clinical efficacy of DOC in triplet therapy for mHSPC is yet to be confirmed,especially in categorizing the patients based on both volume of disease and timing of metastases.Bringing these controversies to light may have a timely and important impact on further clinical trials.Moreover,based on these trials and our NMA study,triplet therapy has evident benefits on overall survival(OS)and progression-free survival(PFS)in patients with mHSPC.The NMA study presented in this thesis is one of the first studies that assessed the efficacy of DOC and selected patients who will benefit from triplet therapy.
基金National Key Research and Development Program of China(SQ2022YFB3806200)National Natural Science Foundation of China(62301596,62101588)+1 种基金Young Talent Fund of Association for Science and Technology in Shaanxi(20240129)Postdoctoral Fellowship Program of CPSF(GZC20242285)。
文摘In modern science and technology,on-demand control of the polarization and wavefront of electromagnetic(EM)waves is crucial for compact opto-electronic systems.Metasurfaces composed of subwavelength array structures inject infinite vitality to shape this fantastic concept,which has fundamentally changed the way humans engineer matter–wave interactions.However,achieving full-space arbitrarily polarized beams with independent wavefronts in broadband on a single metasurface aperture still remains challenging.Herein,the authors propose a generic method for broadband transmission-reflection-integrated wavefronts shaping with multichannel arbitrary polarization regulation from 8 to 16 GHz,which is based on the chirality effect of full-space non-interleaved tetrameric meta-molecules.Through superimposing eigen-polarization responses of the two kinds of enantiomers,the possibility for high-efficiency evolution of several typical polarization states with specific wavefronts is demonstrated.As proofs-of-concept,the feasibility of our methodology is validated via implementing miscellaneous functionalities,including circularly polarized(CP)beam splitting,linearly polarized(LP)vortex beams generation,and CP and LP multifoci.Meanwhile,numerous simulated and experimental results are in excellent agreement with the theoretical predictions.Encouragingly,this proposed approach imaginatively merges broadband polarization and phase control into one single full-space and shared-aperture EM device,which can extremely enhance the functional richness and information capacity in advanced integrated systems.
文摘中药不论在直接抑制肿瘤生长,还是辅助西医治疗肿瘤方面都发挥着不容忽视的作用.本文经检索中国知网、万方、维普、Pubmed、Web of Science等数据库,纳入中药汤剂联合化疗治疗非小细胞肺癌(NSCLC)的随机对照试验,通过Meta、用药规律、网络药理学和细胞实验等分析方法系统评价中药联合化疗治疗NSCLC的疗效、安全性及作用机制,最终纳入56篇文献进行统计分析,共4992例患者、57首处方、172味中药.结果显示,中药联合化疗治疗组的1年生存率、肝功能损伤、总有效率、胃肠道不良反应等方面均优于单纯化疗组.用药频次>20的有7味:药味以甘苦为主,药性以寒温为主,主要归为肺经和肝经.得到5个高频药物聚类,关联规则分析得到置信度最高的4条药物组合为:天花粉-麦冬、玉竹-麦冬、北沙参-玉竹-麦冬、白术-黄芪-党参.收集到核心中药成分潜在作用靶点与NSCLC交集靶点126个;PPI分析得到3个核心靶点:AKT1、EGFR、SRC;KEGG分析表明关键通路为PI3K-Akt信号通路;筛选得到3个关键成分:木犀草素、槲皮素、山柰酚;分子对接结果表明关键成分和核心靶点均能稳定结合.细胞实验结果表明,木犀草素可有效抑制A549细胞的增殖、活力和迁移,诱导其发生凋亡,并使其形态发生变化.本文结果表明,中药联合化疗治疗NSCLC可以提高其临床疗效、降低化疗的毒副作用;黄芪、麦冬、党参、北沙参等核心中药多种成分可通过多靶点、多途径协同治疗NSCLC;关键中药的核心成分木犀草素可抑制A549细胞的增殖、活力和迁移,并可诱导其发生凋亡.
文摘目的基于贝叶斯网状Meta分析系统评价不同血管化骨瓣在下颌骨缺损修复重建中的存活率。方法计算机检索PubMed、EBSCO、Scopus、Web of Science、Cochrane Library、WanFang Data和CNKI数据库,搜集与研究目的相关的临床研究,检索时限均从建库至2024年2月。由2名研究者独立筛选文献、提取资料并评价纳入研究的偏倚风险后,采用R软件进行贝叶斯网状Meta分析。结果共纳入24项研究,包括1615名患者。Meta分析结果显示腓骨游离瓣、旋髂深动脉髂骨瓣、肩胛骨瓣及携带桡骨的前臂桡侧皮瓣用于下颌骨重建的术后存活率分别为95.62%、94.09%、98.16%和93.75%。网状Meta分析结果显示各组织瓣术后存活率之间的差异均无统计学意义。结论当前证据表明,不同血管化骨瓣在下颌骨缺损修复重建中的存活率相似。受纳入研究数量和质量的限制,上述结论尚待更多高质量研究予以验证。
文摘目的评价利妥昔单抗(RTX)治疗原发性干燥综合征(pSS)的疗效及安全性。方法检索Cochrane Library、PubMed、Embase、Medline、Web of Science、维普网、中国知网、万方数据等数据库,收集RTX(试验组)对比安慰剂(对照组)治疗pSS的随机对照试验(RCT),检索时限为建库至2024年2月。对文献进行资料提取和质量评价后,采用RevMan 5.3软件进行Meta分析。结果最终纳入7篇RCT,共计518例患者。Meta分析结果显示,试验组患者的欧洲抗风湿病联盟干燥综合征疾病活动指数(ESSDAI)评分[MD=-1.17,95%CI(-1.52,-0.82),P<0.00001]、口干视觉模拟(VAS)评分[MD=-3.97,95%CI(-5.08,-2.86),P<0.00001]均显著低于对照组,未刺激唾液流速[SMD=0.64,95%CI(0.41,0.87),P<0.00001]、希尔默试验(Schirmer)评分[MD=0.19,95%CI(0.18,0.20),P<0.00001]均显著高于对照组;两组患者的应答率[RD=0.10,95%CI(-0.04,0.23),P=0.16]、疲乏VAS评分[MD=-12.50,95%CI(-35.14,10.15),P=0.28]、欧洲抗风湿病联盟干燥综合征患者自我报告指数(ESSPRI)评分[MD=0.33,95%CI(-0.53,1.18),P=0.46]、健康调查简表-物理部分(SF36-PCS)评分[MD=0.90,95%CI(-2.97,4.78),P=0.65]、健康调查简表-心理部分(SF36-MCS)评分[MD=0.11,95%CI(-0.41,0.63),P=0.68]、总唾液腺超声评分[SMD=-1.91,95%CI(-4.01,0.19),P=0.07]、不良反应发生率[OR=1.15,95%CI(0.62,2.13),P=0.66]比较,差异均无统计学意义。结论RTX可改善pSS患者的ESSDAI评分、未刺激唾液流速、Schirmer评分和口干VAS评分,且安全性较好,但对改善疲乏VAS评分、ESSPRI评分、SF36-PCS评分、SF36-MCS评分和应答率无显著优势。
