Observations on the therapeutic effect of acupuncture plus tuina on retention of urine

将118例尿潴留患者随机分为2组,即针灸推拿治疗组和药物注射治疗组分别进行治疗观察.结果2组疗效有显著差异.并对2组治疗效果、治疗次数、疗效影响等比较分析,提示针灸推拿组显效率明显优于药物注射组.反映针灸配合推拿治疗尿潴留是临床一种较好的治疗方法.     

银翘解毒丸中金银花药材HPLC-UV鉴定及绿原酸含量测定

目的:建立银翘解毒丸(金银花,连翘,甘草,薄荷等)中金银花药材的鉴别和绿原酸含量测定的方法.方法:采用YWG C18色谱柱;甲醇-10%的磷酸氢二钠(冰醋酸调pH值为2.7)为流动相进行梯度洗脱;检测波长为326nm;流速为1.0mL·min-1;柱温为室温.结果:HPLC-UV法定性鉴别制剂中金银花药材;绿原酸在5.0～60μg·mL-1的范围内呈良好线性关系(r=0.9999),平均回收率为98.71%(RSD=1.57%).结论:本法操作简单,准确,重现性好,可用于银翘解毒丸的质量控制.     

补肾行气活血法对骨髓基质干细胞诱导成软骨细胞作用的影响

[目的]观察补肾行气活血法对诱导骨髓基质干细胞(BMSCs)成软骨细胞作用的影响.[方法]将传至第3代的BMSCs分为阴性对照组和治疗组,分别采用软骨细胞诱导培养基加体积分数为10%的空白对照血清和诱导培养基加体积分数10%的骨炎定含药血清培养诱导成软骨细胞,观察软骨细胞的生长状况及细胞表型特征.[结果]治疗组在细胞贴壁、生长形态及成软骨特性方面明显优于对照组,细胞表型的免疫组化染色均为阳性.[结论]以补肾行气活血法为组方依据的骨炎定含药血清既可促进BMSCs的增殖,又可促进诱导的软骨细胞分化.     

Lnczc3h7a对结直肠癌细胞增殖和迁移的影响及其机制

目的 分析Lnczc3h7a在结直肠癌细胞中的表达及其对结肠癌细胞增殖和迁移的影响,并探讨其潜在的作用机制.方法 选择6种结直肠癌细胞株SW620、SW480、HCT116、DLD-1、Caco-2、HT-29与正常结直肠上皮细胞株FHC,采用RT-PCR法检测Lnczc3h7a在结直肠癌细胞株及正常结直肠上皮细胞株中...     

Determination of heavy metals in water using an FTO electrode modified with CeO2/rGO nanoribbons prepared by an electrochemical method

The rGO/CeO₂/FTO nanocomposite modified electrode was prepared by an electrochemical method. A simple and highly sensitive electrochemical sensing platform for electrochemical rGO and modified CeO₂ nanoribbons directly on FTO electrodes was developed. Simultaneous determination of Pb²⁺ and Cd²⁺ used the differential pulse anodic stripping voltammetry (DPASV) method. The method was simple to operate, and CeO₂ nanobelts could be obtained simultaneously by electrodeposition and reduction of GO without further processing. This is an environmentally friendly electrochemical method to obtain modified electrodes under mild conditions. The experimental results showed that the linear calibration curves of Pb²⁺ and Cd²⁺ are 1–300 and 0.2–500 μg L⁻¹, respectively. At the same time, no interference from other coexisting metal ions was found during the detection process, which proved that the modified electrode had good stability and repeatability.

The rGO/CeO₂/FTO nanocomposite modified electrode was prepared by an electrochemical method.     

Improved nitrogen reduction activity of NbSe2 tuned by edge chirality

Efficient catalysts for the electroreduction of N₂ to NH₃ are of paramount importance for sustainable ammonia production. Recently, it was reported that NbSe₂ nanosheets exhibit an excellent catalytic activity for nitrogen reduction under ambient conditions. However, existing theoretical calculations suggested an overpotential over 3.0 V, which is too high to interpret the experimental observations. To reveal the underlying mechanism of the high catalytic activity, in this work, we assessed NbSe₂ edges with different chirality and Se vacancies by using first principles calculations. Our results show that N₂ can be efficiently reduced to NH₃ on a pristine zigzag edge via the enzymatic pathway with an overpotential of 0.45 V. Electronic structure analysis demonstrates that the N₂ molecule is activated by the back-donation mechanism. The efficient tuning of the local chemical environments by edge chirality provides a promising approach for catalyst design.

The zigzag edge of the NbSe₂ monolayer exhibits an overpotential as low as 0.45 V along the enzymatic pathway.     

木犀草素对实验性自身免疫性脑脊髓炎大鼠SPH/SPHK1/S1P1通路及神经元凋亡的影响

目的 探讨木犀草素(Luteolin)对实验性自身免疫性脑脊髓炎(Experimental autoimmune en-cephalomyelitis,EAE)大鼠神经酰胺-鞘氨醇(Sphingosine,SPH)/鞘氨醇激酶1(Sphingosine kinase 1,SPHK1)/1-磷酸鞘氨醇受体1(Sphing...     

细针穿刺肝脏孤立性坏死结节的临床病理特征

目的研究B超下穿刺肝孤立性坏死结节的临床及病理学特点。方法收集32例肝孤立性坏死结节的临床资料,并在光镜下观察其细针穿刺组织病理形态,同时复习相关文献。结果本组男性21例,女性11例,平均年龄46.8岁,结节直径0.8~4.0 cm,临床及影像学缺少特异表现,光镜下结节中央为凝固性坏死,坏死外周围绕着一层弹力纤维及胶原组织,伴少数炎细胞浸润,结节周围的肝细胞基本正常。结论肝孤立性坏死结节是一种少见的非肿瘤性结节状病变,对B超引导下穿刺标本进行组织病理学观察能够准确诊断。     

A Novel Herbal Extract Blend Product Prevents Particulate Matters-Induced Inflammation by Improving Gut Microbiota and Maintaining the Integrity of the Intestinal Barrier

Air pollutants of PM2.5 can alter the composition of gut microbiota and lead to inflammation in the lung and gastrointestinal tract. The aim of this study was to evaluate the protective effect of a novel herbal extract blend, FC, composed of Lonicera japonica extract, Momordica grosvenori extract, and broccoli seed extract, on PM2.5-induced inflammation in the respiratory and intestinal tract. A549 cells and THP-1 cells, as well as C57BL/6 mice, were stimulated with PM2.5 to establish in vitro and in vivo exposure models. The models were treated with or without FC. The expression of inflammatory cytokines and tight junction proteins were studied. Proteomic analysis was performed to elucidate mechanisms. Mouse feces were collected for gut microbiota analysis. FC was shown to modulate the upregulation of pro-inflammatory cytokines mRNA expression in A549 and THP-1 cells and downregulated tight junction proteins mRNA expression in A549 cells due to PM2.5 stimulation. In animal models, the decreased expression of the anti-inflammatory factor il-10, tight junction protein ZO-1, and the elevated expression of COX-2 induced by PM2.5 were improved by FC intervention, which may be associated with zo-1 and cox-2 signaling pathways. In addition, FC was shown to improve the gut microbiota by increasing the abundance of beneficial bacteria.