应用OCT及OCTA观察孔源性视网膜脱离巩膜扣带术后的眼底变化

目的：应用OCT及OCTA观察孔源性视网膜脱离(RRD)行巩膜扣带术(SB)术后的黄斑形态结构、黄斑及视盘血管密度及视网膜神经纤维层厚度变化。

方法：横断面病例对照研究。将2014-07/2021-03在赣州市人民医院眼科诊断为RRD的患者25例25眼纳入本研究。对比术后末次随访患眼和健眼黄斑浅层血管(SVC)的血管密度(VD)、黄斑深层血管(DVC)的VD、视盘SVC-VD、视网膜神经纤维层(RNFL)、黄斑中心凹厚度(CMT)、中心凹下脉络膜厚度(SFCT)、黄斑外层结构之间的差异,并分析影响末次随访患眼BCVA(LogMAR)的相关性指标。

结果：术后末次随访患眼与健眼黄斑SVC-VD、黄斑DVC-VD、视盘SVC-VD、RNFL、CMT、SFCT无差异(均P>0.05); 末次随访患眼与健眼OCT下黄斑外层结构对比显示外界膜(ELM)、肌样体区(MZ)、椭圆体带区(EZ)、光感受器外节(OS)的光带完整性无差异(均P>0.05),嵌合体区(IZ)光带完整性则有差异(P=0.014); 末次随访患眼与健眼BCVA有差异(P=0.002)。术后末次随访患眼BCVA与有无波及黄斑、视盘SVC-VD、黄斑外层结构ELM、MZ、EZ、OS、IZ光带完整性有显著相关性,其中与有无波及黄斑呈现正相关(r_s=0.401,P=0.047); 与视盘SVC-VD、黄斑外层结构ELM、MZ、EZ、OS、IZ光带完整性呈负相关(均P<0.05)。

结论：OCT及OCTA用于观察RRD行SB术后眼底改变可获得与视力预后相关的长期随访信息,其术后视力预后取决于视网膜外层结构的恢复情况而定,IZ结构的完整性对于视力恢复更为重要; 视盘SVC-VD与视力预后有相关性,视盘SVC-VD的改变与术后眼压是否相关还需要术后连续数据进一步观察验证。     

羟乙基淀粉200/0.5氯化钠注射液细菌内毒素检查的可行性研究

目的对羟乙基淀粉200/0.5氯化钠注射液进行凝胶法干扰试验,建立羟乙基淀粉200/0.5氯化钠注射液细菌内毒素的检查方法。方法按2010年版《中国药典》(二部)"细菌内毒素检查法",用不同厂家的鲎试剂对不同批号的羟乙基淀粉200/0.5氯化钠注射液分别进行干扰试验。结果羟乙基淀粉200/0.5氯化钠注射液进行2倍以上稀释的溶液对细菌内毒素检查无干扰作用。结论羟乙基淀粉200/0.5氯化钠注射液进行细菌内毒素检查是可行的。     

土荆皮中二萜类化合物的HPLC-ESI/MS~n鉴定(英文)

使用高效液相色谱-多级质谱法(HPLC-ESI/MSn)研究了土荆皮二萜的ESI/MSn裂解行为,并对土荆皮中的二萜类化合物进行了定性分析。土荆皮二萜的特征裂解是内酯环和C4-O键的断裂。此外,C-18、C-7和C-8位取代基的离去在多级质谱(MSn,n=3～4)中也可观察到。对于C-4位乙酰氧基取代的二萜,[M+Na-60]+和[M-H-104]-分别是正、负离子模式下二级质谱的基峰。对于C-4位羟基取代的二萜,[M+Na-44]+和[M-H-62]-分别是正、负离子模式下二级质谱的基峰。对于C-18位葡萄糖苷化或酯化的二萜,[M+Na-44]+是正离子模式下二级质谱的基峰。利用上述裂解规律,使用LC-MS方法在正离子模式下鉴定了土荆皮甲醇-水(6∶4)提取物中的二萜类化合物,共有9个二萜被鉴定或初步推测,其中一个是首次报道的化合物。所述方法可用于土荆皮的灵敏快速定性分析。     

诸子蜂起 百家争鸣(二)——英国中医药的现状与展望

中医药面临着"诸子蜂起,百家争鸣"的国际医药保健时代,处于有机会又有曲折的局面.故从1)中医药在国外的发展.2)中医药在英国的现状.3)英国推动中医教育的经验.4)英国偶尔发生的中医事故影响中医界整体形象.5)英国中医的立法过程与国际影响.6)建立中医药企业文化和品牌标准--英国的经验.7)中医药发展展望.8)中医药的宣传和外交等方面论述.指出在"诸子蜂起,百家争鸣"的新"全球医学"时代,中医界人士需团结一致,既往开来,为把中医真正纳入世界主流医学,并能恩泽于全人类而全心全力、努力不懈!     

中药对肿瘤细胞周期影响的研究进展

越来越多的学者已达成共识：肿瘤是一类细胞周期性疾病。细胞周期的调控依赖多种细胞因子的共同参与,其调控机制异常与肿瘤的发生、发展密切相关。随着对中药抗肿瘤研究的深入,发现许多中药复方、单味中药和中药有效成分能够将肿瘤细胞阻滞于不同的细胞周期,从而抑制肿瘤细胞增殖并诱导凋亡。本文将对中药阻滞肿瘤细胞周期的研究做一综述。细胞周期的调控依赖多种细胞因子的共同参与,其调控机制异常与肿瘤的发生、发展密切相关。细胞周期的调控主要由细胞周期蛋白（Cyclins）、细胞周期蛋白依赖性激酶（cyclin-dependent kinases,CDKs）和细胞周期蛋白依赖性激酶抑制物（cyclin-dependent kinase inhibitors,CDKIs）进行调控。细胞周期蛋白主要分为Cyclin A、B、C、D、E、F、G、H、I、K十大类。随着对中药抗肿瘤研究的深入,发现许多中药复方、单味中药和中药有效成分能够将肿瘤细胞阻滞于不同的细胞周期,从而抑制肿瘤细胞增殖并诱导凋亡。抗肿瘤中药在细胞周期中主要阻滞细胞于G0/G1期、S期及G2/M期。     

急性ST段抬高型心肌梗死患者经皮冠状动脉介入术后无复流的研究进展

约1/3的急性ST段抬高型心肌梗死患者接受直接经皮冠状动脉介入术后出现无复流。无复流的常用诊断方法是冠状动脉造影,治疗和预防策略主要包括降低血栓负荷、改善微循环功能、减轻缺血再灌注损伤及诱导受损心肌再生。该文介绍急性ST段抬高型心肌梗死患者经皮冠状动脉介入术后无复流的治疗进展。     

Venous Thromboembolism Risk in Asian Patients with Inflammatory Bowel Disease: A Population-Based Nationwide Inception Cohort Study

Background/AimsInflammatory bowel disease (IBD) is associated with the occurrence of venous thromboembolism (VTE). However, to date, there have been few studies on the risk of VTE in Asian IBD patients. We aimed to estimate the incidence of VTE in Asian IBD patients and to determine if IBD is related to increased VTE risk.MethodsWe performed a population-based cohort study between 2004 and 2015 using Korean National Health Insurance data. IBD and VTE were defined by ICD-10 codes. Incidence rates of VTE were calculated among patients with IBD and among age- and sex-matched controls. Hazard ratios were estimated using Cox regression with adjustment for multiple variables. We performed additional analyses stratifying by age, sex, Charlson comorbidity index (CCI) score, and disease type.ResultsAmong the 45,037 patients with IBD (IBD cohort) and 133,019 matched controls (non-IBD cohort) included in our analysis, 411 IBD patients and 641 controls developed VTE. The IBD cohort had a higher incidence rate ratio and risk of VTE than the non-IBD cohort (incidence rate ratio 1.92 and hazard ratio 1.93). Older age, female sex, higher CCI scores, cardiovascular disease, chronic kidney disease, use of steroids, and hospitalization were significant risk factors for VTE in patients with IBD.ConclusionsThe IBD patients in this study were approximately two times more likely to develop VTE than the non-IBD individuals. Our findings support the need for thromboprophylaxis in Asian IBD patients with various factors that further increase the risk of VTE.     

高效液相色谱法测定宁神补心片丹参酮ⅡA的含量

目的建立高效液相色谱法测定宁神补心片中丹参的丹参酮ⅡA含量.方法利用Lichrospher5-C18色谱柱,流动相甲醇-水为73∶27,检测波长为270 nm,流速1.6 mL/min,柱温为30℃.结果进样量在0.208～1.664 μg范围内呈现良好的线性关系,回归方程为Y=2.735×107X 8.870×105,r=0.9996,平均回收率为98.54%,RSD=1.33%(n=5).结论该方法快速简便,准确可靠,灵敏度高,可用于宁神补心片的质量控制.     

The role of toll-like receptors (TLRs) in pan-cancer

BackgroundToll-like receptors (TLRs) are important components of the innate and adaptive immune systems, and abnormal TLR expression has been linked to a variety of cancers. However, there was a lack of clarity on the association of TLR stimulation with the carcinogenesis of cancer. The study''s goal was to analyse the clinical importance of TLRs expression at the mRNA level in pan-cancer datasets, as well as the link between TLR expression and carcinogenesis, progression, and clinical prognosis.MethodsThe expression profile of TLRs derived from UCSC pan-cancer data was analysed in multiple dimensions, including clinical analysis, immunological subtype analysis, tumour microenvironment (TME) analysis, tumour stem cell correlation analysis, and drug sensitivity analysis. Additionally, we analyse protein-protein interactions, functional enrichment, and chromatin accessibility, as well as TLR expression in single-cell sequencing data.ResultsOur multi-omics analysis results imply that TLRs may operate as a biological marker for carcinogenesis and progression, a potential target for anti-tumour therapy, and a prognostic biomarker, laying the theoretical groundwork for future translational medicine research.ConclusionTLRs are involved in the formation of malignancies and can be explored in further detail as potential prognostic indicators.

Key Messages

• Toll-like receptors (TLRs) are key factors in the process of the innate and adaptive immune response, and their aberrant expression of TLRs have been widely reported in various cancer. However, the association between TLRs stimulation and tumorigenesis of cancer has not been well clarified.
• In this study, in the pan-cancer data, integrated TLR family gene expression analysis, clinical correlation analysis, immune subtype correlation analysis, tumour microenvironment correlation analysis, tumour stem cell correlation analysis, and drug sensitivity correlation analysis were performed.
• TLRs play an important role in the development of tumours and can be studied in depth as potential prognostic markers.