Summary and Prospect of Treating Ulcerative Colitis by Warming the Kidney and Strengthening the Spleen

The method of warming the kidney and strengthening the spleen is widely used in the treatment of ulcerative colitis (UC) with significant curative effect.This paper reviews the relevant literature in recent years.

Microstructure and strengthening mechanism of Mg-5.88Zn-0.53Cu-0.16Zr alloy solidified under high pressure

Mg-5.88 Zn-0.53 Cu-0.16 Zr(wt.%)alloy was solidified at 2-6 GPa using high-pressure solidification technology.The microstructure,strengthening mechanism and compressive properties at room temperature were studied using SEM and XRD.The results showed that the microstructure was refined and the secondary dendrite spacing changed from 35μm at atmospheric pressure to 10μm at 6 GPa gradually.Also,Mg(Zn,Cu)2 and Mg Zn Cu eutectic phases were distributed in the shape of network,while under high pressures the second phases(Mg(Zn,Cu)2 and Mg7 Zn3)were mainly granular or strip-like.The solid solubility of Zn and Cu in the matrix built up over increasing solidification pressure and reached 4.12%and 0.32%respectively at 6 GPa.The hardness value was HV 90 and the maximum compression resistance was 430 MPa.Therefore,the grain refinement strengthening,the second phase strengthening and the solid solution strengthening are the principal strengthening mechanisms.

Sclerosing angiomatoid nodular transformation of the spleen: A case report and literature review

BACKGROUND Sclerosing angiomatoid nodular transformation(SANT)is a rare disease of the spleen.It has unique pathological features and mimics splenic tumor on radiological imaging.CASE SUMMARY A 47-year-old woman was incidentally found to have a splenic mass on abdominal ultrasound.She had a 10-cm postoperative scar in the lower abdomen due to previous cesarean sections.The patient had a past history of anemia of unknown etiology for 20 years.The patient underwent laparoscopic splenectomy.The postoperative course was uneventful,with a hospital stay of 7 d.The histopathological examination of the spleen revealed SANT.At the 6-mo followup,the patient remained disease-free.CONCLUSION SANT is a rare benign disease mimicking a malignant tumor.A definitive diagnosis can be made only on histopathology.

Metallurgical Design, Development and Strengthening Mechanisms for HRB600E Reinforcing Bar

High-strength,anti-seismic requirements represent the development tendency to hot-rolled ribbed bar used for the reinforcement of concrete.In this paper,metallurgical design,development and strengthening mechanisms for 600 MPa reinforcing bar with anti-seismic requirements have been studied and presented based on the production practice of 335 MPa,400 MPa and 500 MPa grades.Through trial and error,it was found that alloy design with niobium plus vanadium is the best way to achieve the optimum combination of yield strength and anti-seismic properties,especially,small amount niobium addition can improve upon tensile-to-yield ratio.In order to clarify the underlying theoretical principles for the strengthening effects,qualitative and quantitative analysis for microstructure had been conducted with the aid of optical microscopy,scanning electron microscopy,transmission electron microscopy and chemical extraction technique,together with the solution and precipitation behavior of niobium and vanadium during the hot-rolling and cooling processes.Based on analysis results,it was found strengthening effects of both niobium and vanadium demonstrate some additional strengthening effects apart from predominated precipitation strengthening and grain refinement strengthening respectively.Although adding high vanadium contents is indispensable to achieve needed yield strength through precipitation strengthening effects,but fine VN particles precipitated in relatively high temperature also bring grain refinement effects for austenite and ferrite.Equally,grain refinement is not overall to describe the effects of niobium in long products,small amount of niobium contents is marked to improve upon tensile-to-yield ratio due to transformation strengthening resulted from the niobium contents in solution.Through the development of HRB600E,strengthening mechanisms of vanadium and niobium in medium carbon long products had been enriched.

Regulative Effects of Auricular Acupuncture,Moxibustion and Chinese Herbs on Immunologic Function in the D-Galactose-induced Aging Mouse

Objective:To observe the regulative effect of auricular acupuncture, moxibustion and Chinese herbs on immunologic function in the D-galactose-induced aging mouse and to probe the feasibility and possible mechanisms for delaying aging, so as to provide experimental basis for acupuncture, moxibustion and Chinese herbs for delaying aging. Methods: Aging mouse model was established by subcutaneous injection of D-galactose, and treated by auricular acupuncture, auricular acupuncture plus moxibustion, and auricular acupuncture plus Chinese herbs respectively for 6 weeks and then serum interleukin-2 (IL-2) and IL-6 contents and splenic lymphocyte transformation rate were compared among the groups. Results: Compared with the young group, the serum IL-2 level and the splenic lymphocyte transformation rate significantly decreased and the IL-6 level significantly increased in the aging mouse. After treatment by auricular acupuncture, auricular acupuncture plus Chinese herbs, especially auricular acupuncture plus moxibustion, the serum IL-2 level and the splenic lymphocyte transformation rate significantly increased, and the IL-6 level significantly decreased as compared with the model group. Conclusions: Combined application of auricular acupuncture, moxibustion and Chinese herbs can improve the decline or dysfunction of immunological function in the aging organism to a certain extent.

Phase Transformation Strengthening of Hot Extruded Inconel 625 under High-temperature Load Environment

Microstructure evolution and properties of hot-extruded Inconel 625 alloy were investigated at different creep temperatures, aging time and strain rates. The experimental results indicate that the Inconel 625 alloy exhibits an excellent creep resistance at 700 ℃ and below. When the creep temperature rises to 750 ℃, the creep resistance falls drastically due to the failure of phase transformation strengthening and the precipitation of a large amount of δ phase and σ phase at the grain boundary. The special temperature-sensitive characteristics of Inconel 625 alloy play a very important role in its fracture. When the strain rate is 8.33×10^-3s^-1, the strength of the specimen is higher than that of other parameters attributed to the effect of phase transformation strengthening. With the increase of Ni3(Al, Ti), the phase transformation strengthening inhibits thickening of the stacking faults into twins and improves the overall mechanical properties of the alloy. With the increase of the aging time, the granular Cr-rich M23C6 carbides continue to precipitate at the grain boundary, which hinders the movement of the dislocations and obviously increases the strength of the samples. Especially, the yield strength increases several times.

Sclerosing angiomatoid nodular transformation of the spleen, a rare cause for splenectomy: Two case reports

BACKGROUND Sclerosing angiomatoid nodular transformation(SANT)is a rare benign disease of the spleen with unknown origin.Clinical symptoms are inhomogeneous,and suspicious splenic lesion often found incidentally,leading to splenectomy,as malignancy cannot securely be ruled out.Diagnosis is made histologically after resection.CASE SUMMARY Two cases of German,white,non-smoking,and non-drinking patients of normal weight are presented.The first one is a 26-year-old man without medical history who was exhibiting an undesired weight loss of 10 kg and recurring vomiting for about 18 mo.The second one is a 65-year-old woman with hypertension who had previously undergone gynecological surgery,suffering from a lasting feeling of abdominal fullness.Both showed radiologically an inhomogeneous splenic lesion leading to splenectomy approximately 6 and 9 wk after surgical presentation.Both diagnoses of SANT were made histologically.Follow-up went well,and both were treated according to the recommendation for asplenic patients.CONCLUSION SANT is a rare cause of splenectomy and an incidental histological finding.Further research should focus on clinical and radiological diagnosis of SANT as well as on treatment of patients with asymptomatic and small findings.

INFLUENCE OF AUSTENITE STRENGTHENING ON MARTENSITIC TRANSFORMATION IN Fe-Mn-C ALLOYS

The M_s temperature and the yield strength of austenite at M_s temperature have been meas- ured for five Fe-Mn-C alloys.The experimental results show that there is a linear relation- ship between them.The effect of the solution strengthening of austenite on martensite morphology is also studied.It is pointed out that there is a characteristic temperature T_c in austenite strengthening.Martensite morphology is mainly of dislocated laths when M_s>T_c, and is mainly of twinned plates when M_s<T_c.A theoretical analysis is given which is in good agreement with experimental results.

扶正补土皮内针法联合康复训练治疗脑卒中后肩手综合征Ⅰ期临床观察

目的研究扶正补土皮内针法联合康复训练对缺血性脑卒中后肩手综合征(SHS)Ⅰ期的影响。方法选取62例卒中后SHSⅠ期患者,随机分为试验组和对照组,每组31例;对照组实施康复训练,试验组则实施扶正补土皮内针治疗联合康复训练。运用简式Fugl-Meyer评分、视觉模拟量表(VAS)评分、手部水肿评分评估两组患者的上肢运动功能、疼痛情况及手部水肿程度,并比较临床疗效。结果治疗后,试验组患者简式Fugl-Meyer评分、VAS评分、水肿评分均优于对照组(P<0.05)。试验组治疗总有效率为90.32%(28/31),高于对照组的67.74%(21/31)(P<0.05)。结论扶正补土皮内针法联合康复训练可改善缺血性脑卒中后SHSⅠ期患者的肩部疼痛及水肿程度并促进上肢运动功能的恢复。

余仁欢辨治药物性肾损害经验

药物性肾损害作为临床用药较为常见的不良反应事件,在治疗上具有一定难度。余仁欢教授认为治疗药物性肾损害应重点关注损伤程度、损伤部位、急慢性质以及患者素体情况等。对于平素体健猝逢药毒攻伐的实证患者,以解毒泻浊化瘀法治之;对于脾肾虚甚、不耐药之毒性或偏性的虚证患者,以补脾益肾法治之;对于脾肾素亏又逢药毒攻伐致脾肾两虚、痰凝湿阻、络损血瘀的虚实夹杂证患者,以健脾祛湿、化瘀和络法治之。附验案1则。

基于肠道菌群探讨益气健脾法对恶性肿瘤免疫治疗的影响

随着科学研究逐步深入,肿瘤免疫治疗发展迅速,给晚期恶性肿瘤患者带来了更多的治疗机会,越来越多的患者从中受益。虽然免疫治疗改善了部分肿瘤患者的总生存期,但其单药有效率并不高,免疫药物费用高昂也极大限制了其临床持续性应用。因此,如何使免疫治疗疗效最大化逐渐成为肿瘤研究领域的热点问题。肠道菌群在免疫治疗中的作用逐渐受到关注,现代研究发现肠道菌群中的益生菌如乳酸杆菌、双歧杆菌等有益菌群可提高免疫治疗疗效。脾为后天之本,气血生化之源,肠道菌群与中医脾的生理功能相似,多项研究证实中医益气健脾法可调节肠道菌群,增加益生菌、减少有害菌,改善免疫功能。因此文章汇总了益气健脾法通过调控肠道菌群,改善肠道微环境,提升肿瘤免疫治疗疗效的研究现况,以期为临床应用提供参考。

Therapeutic observation on lung-clearing and spleen-strengthening tuina in children with exogenous cough

Objective:To observe the clinical efficacy of lung-clearing and spleen-strengthening tuina on exogenous cough in children.Methods:A total of 77 children with exogenous cough that met the inclusion criteria were randomly divided into a treatment group and a control group according to the random number table,with 39 cases in the treatment group and 38 cases in the control group.The routine lung-clearing manipulation was used in the two groups,while the spleen-strengthening manipulation was added in the treatment group.Both groups were treated once a day,5 times as a course of treatment.After one course of treatment,the symptom score and clinical efficacy were observed.Results:There were one dropout in the treatment group and 2 dropouts in the control group.Therefore,a total of 74 cases were finally included in the analysis,with 38 cases in the treatment group and 36 cases in the control group.After treatment,there was a statistically significant difference in cough score between the two groups(P<0.05).There was a statistically significant difference in the score of poor appetite between the two groups(P<0.05).After treatment,the total effective rate was 89.5%in the treatment group versus 75.0%in the control group,showing a statistically significant difference(P<0.05).Conclusion:The therapeutic efficacy of lung-clearing spleen-strengthening manipulation is better than that of lung-clearing tuina manipulation alone for children with exogenous cough;regulating spleen and stomach can improve the curative efficacy of exogenous cough in children.

Microstructure and mechanical properties of a cast heat-resistant rare-earth magnesium alloy

Microstructure,mechanical properties and phase transformation of a heat-resistant rare-earth(RE)Mg-16.1Gd-3.5Nd-0.38Zn-0.26Zr-0.15Y(wt.%)alloy were investigated.The as-cast alloy is composed of equiaxedα-Mg matrix,net-shaped Mg5RE and Zr-rich phases.According to aging hardening curves and tensile properties variation,the optimized condition of solution treatment at 520℃for 8 h and subsequent aging at 204℃for 12 h was selected.The continuous secondary Mg5RE phase predominantly formed at grain boundaries during solidification transforms to residual discontinuousβ-Mg5RE phase and fine cuboid REH2particles after heat treatment.The annealed alloy exhibits good comprehensive tensile property at 350℃,with ultimate tensile strength of 153 MPa and elongation to fracture of 6.9%.Segregation of RE elements and eventually RE-rich precipitation at grain boundaries are responsible for the high strength at elevated temperature.

New research developments on ultra fast cooling technologies and new generation TMCP

Since the 21^(st) century,great attention has been paid to ultra fast cooling(UFC) technology in the whole world.The industries and the research institutions began to carry out investigations on basic theories and industrial applications.Since 2003,the RAL of Northeastern University has made some progresses on microstructure control theories,understanding of strengthening mechanisms and their industrial applications.In this paper,these achievements since the last Baosteel BAC in 2008 will be reported on the industrialization of UFC, strengthening mechanism,development of new steel grades,and so on.

Unveiling the unique bifunctionality of L12-structured nanoprecipitates in a FeCoNiAlTi-type high-entropy alloy

Nanoprecipitation strengthening has been widely adopted as an effective way to design high-strength alloys,which generally leads to the loss of ductility. Here we unveil the unique bifunctionality of L12-structurednanoprecipitates in a FeCoNiAlTi-type high entropy alloy , enabling the combined increase of tensile strength andductility. Results show that as-quenched precipitate-free matrix alloys undergo thermally-induced martensitetransformation and form the body-centered cubic martensite phase with limited tensile ductility. In strongcontrast, when introducing the dense coherent L12-type nanoprecipitates, the face-centered cubic matrix istemporarily stabilized, which in turn promotes the microbands-induced plasticity associated with stress-inducedmartensite transformation upon deformation. This allows us to achieve significantly improved work hardeningcapability and excellent plastic deformation stability at a high-strength level. These new findings reshape ourunderstanding of the precipitation strengthening and could provide useful guidance for developing highperformance alloys by regulating the coherent nanoprecipitate and martensitic phase transformation.

The special issue:“Financial innovation for Emission Trading Scheme”

Against the existential and ubiquitous threat of climate changes to the environment,human health,and economic well-being,the proliferation of carbon neutrality from both government and private sector recently prevails in order to strengthen preparedness for the future global crisis.More than 70 countries and regions have pledged to achieve the goal of carbon neutrality by 2050(ICAP,2020).While the momentum toward adopting carbon neutrality targets continue to build,a growing body of countries and subnational governments move toward carbon pricing through rolling out,speeding-up,or strengthening the construct of emission trading scheme(ETS)and carbon financial market.Notwithstanding the laudable objectives of ETS to enable emission reduction,the potential of ETS is still largely untapped,largely stemming from poor financial innovation.This special issue is,therefore,aimed at promoting research on the carbon financial innovations,financial derivatives services,the use of Fintech and the optimization on architectures of the ETS such that ETSs could drive the transformation toward low-carbon development path and the achievement of Carbon Neutrality targets.

健脾祛痰法治疗血脂异常研究概况

血脂异常在我国普遍存在,中医药干预血脂异常越来越得到人们的重视。中医学认为脾主运化水谷精微,脂质亦需要脾的运化功能布散周身。脾气虚则脾失健运,清气不升,浊阴独留,生湿生痰;痰湿进一步阻碍气机,影响脾胃运化,使脾虚更甚,加重脂浊,浸润血脉。近年来健脾祛痰法被越来越多地应用于血脂异常的防治中,且在临床中收到不错的疗效。

Solution and Precipitation Behavior of Nb and Its Role in Medium Carbon Long Product Steels

Controlling of the solution and precipitation for microalloying additions of Nb,V,Ti and their combination is the basic building block of microalloyed steels.Among three microalloying elements,Nb has been regarded the most effective microalloying ingredient used for low carbon flat products due to marked strengthening effect of grain refinement and relatively weak precipitation strengthening effect by matching proper thermomechanical processing(TMP).However,Nb was not viewed as attractive as V for medium carbon long products in the past because of limited solubility during reheating process.What is more,hot working is usually carried out at high temperatures in the recrystallization regime,so it is difficult to exert conventional controlled rolling to obtain pancaked austenite,which has further affected the research and application of Nb in medium carbon long products.Because of these factors,studies of Nb in medium carbon long products were incomplete,and even some recognitions and conclusions are subjected to debate.In order to clarify the strengthening effects of Nb in medium carbon long products,the reinforcing bars have been chosen as experimental steels to clarify the role of Nb on microstructural changes along the whole hot working,cooling processes.In addition,qualitative and quantitative analyses of Nb’s state and distribution in reheating,rolling and cooling had been carried out to illustrate some singularities.

李延从脾胃论治冠心病的临床经验

冠心病为临床中常见的心血管疾病,可归属中医学的“胸痹”“心痛”等疾病范畴。李延教授认为本病之病性总属本虚标实之证,以脾虚、脾胃健运失常为本,标实在于痰浊、血瘀、气滞、寒凝等有形实邪痹阻心脉。治疗时重视调理脾胃,重用黄芪、白术、党参、五味子等健脾养心以治本,结合通阳化浊、活血化瘀、疏肝理气、温阳散寒等治法,标本兼治,通补兼顾,使脾气健旺,心气充沛,瘀去痰消,胸阳得以舒展,则心之血脉恢复畅通,胸痹心痛诸症得到缓解。李延教授从脾胃论治冠心病的经验可为中医临床诊治冠心病提供参考。

汪龙德运用疏肝健脾法从脾胃论治干燥综合征经验

介绍汪龙德主任医师运用疏肝健脾法从脾胃论治干燥综合征的临床经验和学术思想。认为干燥综合征的关键病机是肝郁脾虚,发病部位在肝脾,属虚实夹杂证,临证强调运用疏肝健脾法为基本治法,使肝气畅达,疏泄正常,气行血行,则瘀血渐除,气机布散津液于全身;脾胃健运,气血津液化生有源,痰饮水湿自化,则清窍腠理得以濡润。辅以清热润燥、养血生津、活血祛瘀,标本同治,可获良效。并结合案例,介绍了疏肝健脾法治疗干燥综合征的应用,以期为临床诊疗提供参考。