BACKGROUND Non-steroid anti-inflammatory drugs(NSAIDs)have played a crucial role in the treatment of osteoarthritis,especially in the early stages.However,the cardiovascular risk and adverse gastrointestinal reactions...BACKGROUND Non-steroid anti-inflammatory drugs(NSAIDs)have played a crucial role in the treatment of osteoarthritis,especially in the early stages.However,the cardiovascular risk and adverse gastrointestinal reactions of oral NSAIDs in elderly people cannot be underestimated.Intra-articular injection of NSAIDs may be a new attempt for early knee osteoarthritis treatment.Parecoxib may be a suitable drug for intra-articular injection.AIM To observe the clinical efficacy of the intra-articular injection of parecoxib for early knee osteoarthritis.METHODS Early knee osteoarthritis patients(n=110)were retrospectively analyzed.These patients were divided into three groups:Basic treatment+oral glucosamine(group A,n=37),oral celecoxib+basic treatment+oral glucosamine(group B,n=37),and intra-articular injection of parecoxib+basic treatment+oral glucosamine(group C,n=36).Intra-articular injection of parecoxib was performed once every 2 wk at a dose of 40 mg each time,for three times total.The three groups were compared in terms of visual analogue scale(VAS)scores,Hospital for Special Surgery(HSS)scores and patient satisfaction before and after treatment.The levels of inflammatory cytokines in the synovial fluid were detected in the three groups before and after treatment.RESULTS All patients were followed up for an average of 15.5±2.7 mo.The clinical efficacy was estimated by VAS and HSS scores at 12 mo after treatment.Inflammatory cytokine levels in the synovial fluid were evaluated at 3 mo after treatment.VAS and HSS scores were significantly improved in each group compared with before(P<0.001).There were significant differences among the three groups in VAS and HSS scores(P<0.001).The clinical efficacy of group C was superior to that of groups A and B(P<0.001),while group B outperformed group A in this respect(P<0.001).The patient satisfaction was the highest in group C(P<0.001).After treatment,the levels of tumor necrosis factorα(TNF-α)and interleukin(IL)-6 in the synovial fluid decreased in each group compared with before(P<0.001),while the levels of IL-10 increased(P<0.001).The three groups differed significantly in the levels of TNF-a,IL-6 and IL-10 in the synovial fluid after treatment(P<0.001).CONCLUSION For patients with early knee osteoarthritis,intra-articular injection of parecoxib could effectively improve clinical symptoms.This method may be a reliable alternative for early knee osteoarthritis.展开更多
AIM:To evaluate the long-term efficacy and safety of endoscopic obliteration with Histoacryl for treatment of gastric variceal bleeding and prophylaxis.METHODS:Between January 1994 and March 2010 at SoonChunHyang Uni...AIM:To evaluate the long-term efficacy and safety of endoscopic obliteration with Histoacryl for treatment of gastric variceal bleeding and prophylaxis.METHODS:Between January 1994 and March 2010 at SoonChunHyang University Hospital,a total of 127 patients with gastric varices received Histoacryl injections endoscopically.One hundred patients underwent endoscopic Histoacryl injections because of variceal bleeding,the other 27 patients received such injections as a prophylactic procedure.RESULTS:According to Sarin classification,56 patients were GOV1,61 patients were GOV2 and 10 patients were IGV.Most of the varices were large(F2 or F3,111 patients).The average volume of Histoacryl per each session was 1.7±1.3 cc and mean number of sessions was 1.3±0.6.(1 session-98 patients,2 sessions-25 patients,≥3 sessions-4 patients).Twenty-seven patients with high risk of bleeding(large or fundal or RCS+or Child C) received Histoacryl injection as a primary prophylactic procedure.In these patients,hepatitis B virus was the major etiology of cirrhosis,25 patients showed GOV1 or 2(92.6%)and F2 or F3 accounted for 88.9%(n=24).The rate of initial hemostasis was 98.4%and recurrent bleeding within one year occurred in 18.1%of patients.Successful hemostasis during episodes of rebleeding was achieved in 73.9%of cases.Median survival was 50 mo (95%CI 30.5-69.5).Major complications occurred in 4 patients(3.1%).The rebleeding rate in patients with hepatocellular carcinoma or GOV2 was higher than in those with other conditions.None of the 27 subjects who were treated prophylactically experienced treatment-related complications.Cumulative survival rates of the 127 patients at 6 mo,1,3,and 5 years were 92.1%,84.2%,64.2%,and 45.3%,respectively.The 6 mo cumulative survival rate of the 27 patients treated prophylactically was 75%.CONCLUSION:Histoacryl injection therapy is an effective treatment for gastric varices and also an effective prophylactic treatment of gastric varices which carry high risk of bleeding.展开更多
Dear Editor,Treating psoriatic arthritis(PsA)is always difficult.Systemic treatments can be administered either orally or through intramuscular and intra-articular injection,including conventional synthetics,biologics...Dear Editor,Treating psoriatic arthritis(PsA)is always difficult.Systemic treatments can be administered either orally or through intramuscular and intra-articular injection,including conventional synthetics,biologics and targeted synthetic disease-modifying antirheumatic drugs[1].The alternatives,topical external therapies,are not effective on joint lesions due to drug permeability issues.Drugs injected into the articular cavity are also unsuitable for small peripheral joint lesions,the most common manifestations of PsA.The limited treatment options for PsA present a challenge.展开更多
The effects of two different heat-treatment atmospheres,nitrogen atmosphere and reducing nitrogen atmosphere with carbon,on the properties of Y2O3-doped aluminum nitride(AlN) ceramics were investigated.The AlN powde...The effects of two different heat-treatment atmospheres,nitrogen atmosphere and reducing nitrogen atmosphere with carbon,on the properties of Y2O3-doped aluminum nitride(AlN) ceramics were investigated.The AlN powder as a raw material was synthesized by self-propagating high-temperature synthesis(SHS) and compacts were fabricated by employing powder injection molding technique.The polymer-wax binder consisted of 60 wt.% paraffin wax(PW),35 wt.% polypropylene(PP),and 5 wt.% stearic acid(SA).After the removal of binder,specimens were sintered at 1850°С in nitrogen atmosphere under atmospheric pressure.To improve the thermal conductivity,sintered samples were reheated.The result reveals that the heat-treatment atmosphere has significant effect on the properties and secondary phase of AlN ceramics.The thermal conductivity and density of AlN ceramics reheated in nitrogen gas are 180 W·m^-1·K^-1 and 3.28 g·cm^-3 and the secondary phase is yttrium aluminate.For the sample reheated in reducing nitrogen atmosphere with carbon,the thermal conductivity and density are 173 W·m^-1·K^-1 and 3.23 g·cm^-3,respectively,and the secondary phase is YN.展开更多
We report a case of a 63-year-old male who experienced an iatrogenic sigmoid perforation repaired combining three endoscopic techniques.The lesion was large and irregular with three discrete perforations,therefore,we ...We report a case of a 63-year-old male who experienced an iatrogenic sigmoid perforation repaired combining three endoscopic techniques.The lesion was large and irregular with three discrete perforations,therefore,we decided to close it by placing one clip per perforation,and then connecting all the clips with two endoloops.Finally we chose to use a fibrin glue injection to obtain a complete sealing.Four days after the colonoscopy the patient underwent a laparoscopic right hemicolectomy due to evidence of a large polyp of the caecum with high grade dysplasia and focal carcinoma in situ.Inspection of the sigma showed complete repair of the perforation.This report underlines how a conservative approach,together with a combination of various endoscopic techniques,can resolve complicated iatrogenic perforations of the colon.展开更多
Objective:To explore the optimal scheme of Shengmai Injection combined with other drugs for clinical doctors.Methods:Based on the large-scale data warehouse established by the institute of Clinical Basic Medicine,Chin...Objective:To explore the optimal scheme of Shengmai Injection combined with other drugs for clinical doctors.Methods:Based on the large-scale data warehouse established by the institute of Clinical Basic Medicine,Chinese Academy of Traditional Chinese Medicine,the hospital information system of 22 large-scale tertiary hospitals in China was collected and 1751 patients with angina pectoris who were treated with Shengmai Injection were selected.Louvain algorithm and complex network analysis are used to build the model to summarize the rule of Shengmai Injection in the treatment of angina pectoris of coronary heart disease.Results:On the basis of Shengmai Injection,according to the symptom treatment of angina pectoris of coronary heart disease,nitrates or Suxiao Jiuxin Pill was used to dilate coronary artery;for the treatment of risk factors of angina pectoris,a combination of"insulin+acarbose+bisoprolol+nifedipine+captopril+estazolam"was used to control blood glucose and blood pressure;"Ganmao Qingre Granule+levofloxacin"to treat upper respiratory tract infection and other medication regimens were used as well.For the complications of angina pectoris of coronary heart disease,"furosemide+spironolactone+potassium chloride+magnesium sulfate"was used to reduce edema and“isosorbide nitrate+metoprolol+Shenmai injection+Wenxin Granule"was used to improve symptom of heart failure of qi and yin deficiency type.Conclusion:The therapeutic regimen of Shengmai Injection combined with traditional chinese medicine and western medicine is basically consistent with the current guidelines,but more clinical studies are still needed to explore more effective combination therapy.展开更多
The melt treatment of A1-7%Si alloy by the flux injection method in a resistance furnance was investigated. The experimental results show that the flux injection method can realize the melt treatment of A1-7%Si alloy....The melt treatment of A1-7%Si alloy by the flux injection method in a resistance furnance was investigated. The experimental results show that the flux injection method can realize the melt treatment of A1-7%Si alloy. In purification, the flux injection method is superior to the standard lance degassing method. For the injection flux, the purifier Na2SiF6 is more powerful than Na3A1F6, the modifiers SrCl2, and R.E. Cl3 are quick acting, like NaF, but less powerful, the grain refiner containing K2TiF6 and KBF4 with Ti/B=1 is more potent than that with Ti/B=5. The analytical results indicate that the mass-transfer rate for the flux injection method is much higher than that for the conventional method .展开更多
Objective To evaluate the effect of Xuesai-tong injection (XSTI, 血塞通注射液 , a preparation of Panax Notoginseng) as auxilliary treatment of severe craniocerebral injury. Methods Eighty-seven patients with severe cr...Objective To evaluate the effect of Xuesai-tong injection (XSTI, 血塞通注射液 , a preparation of Panax Notoginseng) as auxilliary treatment of severe craniocerebral injury. Methods Eighty-seven patients with severe craniocerebral injury were selected and randomly divided into the treated group (n=44) and the control group (n = 43), they were treated with conventional treatment, and XSTI was given additionally to the treated group. Intracranial pressure (ICP) and Glasgow coma score (GCS) of all patients were measuredafter 1 or 2-week treatment, and Glasgow outcome scale (GOS) of them was determined 3 months later. Then the therapeutic effect in the two groups were compared. Results After treatment, the ICP was lower, GCS higher and GOS better in the treated group than those in the control group significantly, all showing statistical significance (P<0.05). Conclusion XSTI has marked clinical therapeutic effect in treating patients with severe craniocerebral injury.Original article on CJITWM (Chin) 2004 ;23 (3): 213展开更多
Objective: To study the effect of intramuscular calcitonin injection combined with intra-articular ozone injection on the expression of the IL family and MMPs family of knee osteoarthritis. Methods: A total of 128 pat...Objective: To study the effect of intramuscular calcitonin injection combined with intra-articular ozone injection on the expression of the IL family and MMPs family of knee osteoarthritis. Methods: A total of 128 patients with knee osteoarthritis who were treated in the hospital between January 2015 and January 2017 were collected and divided into control group and observation group by random number table, each with 64 cases. Control group received intra-articular ozone injection therapy, and observation group received intramascular calcitonin injection combined with intra-articular ozone injection therapy. The differences in serum levels of IL family members and MMPs family members were compared between the two groups before and after treatment. Results: Before treatment, the differences in serum levels of IL family members and MMPs family members were not statistically significant between the two groups. 1 week after treatment, serum levels of IL family members IL-1β, IL-15, IL-17 and IL-18 as well as MMPs family members MMP-1, MMP-2, MMP-3 and MMP-13 of both groups of patients were significantly lower than those before treatment, and serum IL-1β, IL-15, IL-17, IL-18, MMP-1, MMP-2, MMP-3 and MMP-13 levels of observation group were significantly lower than those of control group. Conclusion: Intramuscular calcitonin injection combined with intra-articular ozone injection therapy can effectively inhibit the expression of IL family and MMPs family in patients with knee osteoarthritis.展开更多
In the present paper, 35 cases of fothergill syndrome (prosopalgia) of the treatment group were treated with acupuncture and point-injection of VitB12, and 30 cases of the control group were treated with oral administ...In the present paper, 35 cases of fothergill syndrome (prosopalgia) of the treatment group were treated with acupuncture and point-injection of VitB12, and 30 cases of the control group were treated with oral administration of carbarnazepine. Results showd that in the trearment group, 6 cases were maredly effective, 27 effective and 2 ineffective, with an effective rate of 94. 29 %; in the control group, 2 cases were markedly effective, 10 effective and 18 ineffective, with an effective rate of 40. 00%. There was a significant difference between the two groups in the effective rate (P < 0.01). The acupuncture therapy is strikingly superior to treatment of prosopalgia with Western medicine and has lower side-effects and a lower recurrence rate.展开更多
Objective:This study was aimed at analyzing the efficacy and safety of an injectable form of chlorogenic acid(CGA)in patients with recurrent high-grade glioma after standard of care treatments,through a first-in-human...Objective:This study was aimed at analyzing the efficacy and safety of an injectable form of chlorogenic acid(CGA)in patients with recurrent high-grade glioma after standard of care treatments,through a first-in-human,open-label,dose-escalation phase I trial.Methods:A total of 26 eligible patients were enrolled,received intramuscular CGA injections at 5 dose levels,and were followed up for 5 years.CGA was well tolerated,and the maximum tolerated dose was 5.5 mg/kg.Results:The most common treatment-related adverse events occurred at the sites of injection.No grade 3 or 4 adverse events(e.g.,drug allergy)were reported for these patients except for induration at the injection sites.A clinical pharmacokinetic study showed that CGA was rapidly eliminated from the plasma,with a t_(1/2)of 0.95–1.27 h on day 1 and 1.19–1.39 h on day 30,and no detectable CGA was observed on days 9,11,13,23,25,27,and 29 before CGA administration.After the first treatment cycle,52.2%of patients(12 of 23)achieved stable disease.Long-term follow-up indicated an estimated median overall survival of 11.3 months for all 23 evaluable patients.Of the 18 patients with grade 3 glioma,the median overall survival was 9.5 months.Two patients remained alive at the cutoff day.Conclusions:This phase I study demonstrated that CGA has a favorable safety profile(with no severe toxicity),and provides preliminary clinical benefits for patients with high grade glioma relapsing after prior standard therapies,thus shedding light on the potential clinical application of CGA for recurrent grade 4 glioma.展开更多
AIM: To test whether intra-articular injection of porcine adipose-derived stem cells(ADSCs) can treat canine osteoarthritis(OA).METHODS: To enroll in this study dogs must have stifle joint OA that had lasted ≥ 3 mo a...AIM: To test whether intra-articular injection of porcine adipose-derived stem cells(ADSCs) can treat canine osteoarthritis(OA).METHODS: To enroll in this study dogs must have stifle joint OA that had lasted ≥ 3 mo and been treated with OA medication without significant improvement. Three dogs fulfilled these criteria and were thus subjects for ADSCs treatment. ADSCs were isolated from abdominal adipose tissue of a 2-mo-old female Yorkshire pig. Their stem cell marker expression was examined by immunofluorescence staining. For treatment, 5 million ADSCs were injected into the diseased joint of each dog. In the next 48 h, the patient was observed for signs of inflammatory and allergic reactions. Thepatient was then discharged to the owner and, at 2, 6, and 12 wk, followed up with orthopedic assessment, owner questionnaire, X-ray imaging, and force-plate gait analysis.RESULTS: Porcine ADSCs expressed mesenchymal stem cell markers CD90 and CD105. Injection of porcine ADSCs into canine stifle joints did not cause any inflammatory or allergic reactions. Orthopedic evaluation found improvements in two dogs, particularly at the longest time point. Owners' evaluation found increased capacity and decreased pain in all three dogs' activities such as walking and running. Radiographic evaluation did not find statistically significant differences before and after treatment. Force-plate analysis found significant improvements in all three dogs after treatment.CONCLUSION: Xenotransplantation of ADSCs for the treatment of OA is feasible. Further studies are needed to validate this novel treatment modality, which can then be implemented for the routine treatment of OA in veterinary medicine.展开更多
Aiming to meet the demand of the country' s nuclear demonstration project on the CAP1400 nuclear power plant, Baosteel uses the roll-bonding technology and develops the SA-533 Type B CL. 1 + SA-240 Type 304L high-st...Aiming to meet the demand of the country' s nuclear demonstration project on the CAP1400 nuclear power plant, Baosteel uses the roll-bonding technology and develops the SA-533 Type B CL. 1 + SA-240 Type 304L high-strength and high-toughness clad steel plate with a shear strength of over 310 MPa for the nuclear power plant' s safety injection tank. The properties of the quenched and tempered and the simulated post-weld heat treatment states are systematically studied herein through a comprehensive inspection and evaluation of the composition,microstructure,and properties of the clad steel plate. The results show that the bonding interface has high shear strength and that the base metal has high strength and good toughness at low temperatures. Hence, the performance fully meets the technical requirements of the CAP1400 nuclear power plant' s safety injection tank in the country' s nuclear demonstration project. The roll-bonded clad steel plate can be used to manufacture the safety injection tank of the CAP1400 nuclear power plant.展开更多
The bonded NdFeB magnets prepared by injection molding meet with the development tendency of the magnet in small volume, light weight and high performance ,and have a good prospect.In this paper, a modified nylonbased...The bonded NdFeB magnets prepared by injection molding meet with the development tendency of the magnet in small volume, light weight and high performance ,and have a good prospect.In this paper, a modified nylonbased binder was developed for powder injection molding of NdFeB bonded magnets.The effects of pretreatment of NdFeB anisotropic magnetic powder produced with HDDR processing on the anti-oxidation behaviors of powder and the final magnetic properties of the molded bonded magnets were studied.The optimal powder loading of 65 vol% was achieved with the modified binder.It was found that the properties of the bonded magnets were mainly affected by the powder surface pretreatment and the intensity of the applied alignment magnetic field during injection molding for a certain powder.Bonded magnets with remanence of 0.820 T, intrinsic coercivity of 1140.3 kA· m-1 and maximum energy product of 111 kJ · m-3 were produced with the optimal processing.展开更多
The use of injectable agents for the treatment of stress urinary incontinence(SUI)is an option for female patients who are unwilling to undergo surgery,or have concurrent conditions or diseases that render surgical tr...The use of injectable agents for the treatment of stress urinary incontinence(SUI)is an option for female patients who are unwilling to undergo surgery,or have concurrent conditions or diseases that render surgical treatment unsuitable.To be effective for SUI,an injectable agent must be nonimmunogenic,hypoallergenic,biocompatible,permanent,nonerosive,nonmigratory and painless.It must also heal with minimal fibrosis,possess a long-term bulking effect,and be easily stored and handled.Glutaraldehyde cross-linked bovine collagen(Contigen),silicone polymers(Macroplastique),Durasphere,calcium hydroxyapatite(Coaptite),polyacrylamide hydrogel(Aquamid,Bulkamid),Permacol,and stem cell therapy have been used as injectable agents.Patients must be informed that treatment with injectable agents is not as effective as surgical treatment,and that such agents might necessitate additional and repeated administrations in order to achieve the desired therapeutic effect.展开更多
An outward-going intervertebral foramina puncture along the side of lumbar vertebra spinous process was used to avoid infusing drugs into the subarachnoid space. However, we still had an inadvertent malpractice. The p...An outward-going intervertebral foramina puncture along the side of lumbar vertebra spinous process was used to avoid infusing drugs into the subarachnoid space. However, we still had an inadvertent malpractice. The patient was diagnosed with lumbar discogenic lower back pain and was administrated an outward-going intervertebral foramina puncture through the side of lumbar vertebra spinous process (L5</sub>-S1</sub>). The drug mixture, containing triamcinolone acetonide suspension, cyanocobalamin and bupivacaine HCl, was injected. The patient had palpitations, chest tightness, dyspnea, bradycardia, and hypotension 3 min right after the injection. The vital signs gradually stabilized after treatment with atropine sulfate;however, he had complete sensorimotor loss below the level of distribution of the T2</sub> spinal nerve. The cerebrospinal fluid pressure was lower in the subarachnoid space and the cerebrospinal fluid was slightly turbid and light pink in color. Six hours later, the sensory, motor, defecation, and urination functions returned to normal level. The patient had follow-up evaluations at 1, 3, and 6 months. The lumbar and hip pain was mild-to-severe at times as usual, but there were no other neurologic sequelae. Conclusions: This case showed that there is a risk that drugs may stray into the subarachnoid space during an outward-going intervertebral foramina puncture through the side of lumbar vertebral spinous process. The complication may occur due to a distal nerve root cyst. The result of triamcinolone acetonide suspension and cyanocobalamin injection into the cerebrospinal fluid was not as serious as we imagined.展开更多
Objective: To investigate the suitable time of treating virulent and side effects of chemotherapy for malignant tumor by acupoint injection of Astragalus Root injection. Methods: Sixty three patients with malignant tu...Objective: To investigate the suitable time of treating virulent and side effects of chemotherapy for malignant tumor by acupoint injection of Astragalus Root injection. Methods: Sixty three patients with malignant tumor were divided into three groups: prevention treatment (PT) group (n=23 cases),post chemotherapy treatment (PCT) group( n=22 cases), Western medicine (WM) group ( n=18 cases). The patients in PT, PCT and WM groups were treated respectively from the fifth day on before chemotherapy and from the first day on after chemotherapy, 18 days in all. The patients in WM group were administered Batilol and Leucogen from the first day on after chemotherapy. Changes of leukocytes and immunoglobulin before and after treatment were observed. Results: 1) Acupoint injection of Astragalus Root injectio could increase the number of leukocytes and immunoglobulin content and its effect was better than that of Western medicine (P<0.05); 2) The effect of PT group was better than that of PCT group in preventing and treating virulent and side effects of chemotherapy (P<0.05). Conclusion: It should be stressed on prevention of malignant tumor by using acupoint injection of Astragalus Root for relieving virulent and side effects of chemotherapy.展开更多
In the article titled,"Efficacy and safety of darbepoetin alfa injection replacing epoetin alfa injection for the treatment of renal anemia in Chinese hemodialysis patients:A randomized,open-label,parallel-group,...In the article titled,"Efficacy and safety of darbepoetin alfa injection replacing epoetin alfa injection for the treatment of renal anemia in Chinese hemodialysis patients:A randomized,open-label,parallel-group,noninferiority phase Il trial"published in pages 134-144,issue 2,vol.8 of Chronic Diseases and Translational Medicine,the information of trial registration at the end of Abstract is missing.The registration information should be:This study has been registered on www.chinadrugtrials.org.cn,registered number CTR20130079.展开更多
To achieve good metabolic control in diabetes and keep long term, a combination of changes in lifestyle and pharmacological treatment is necessary. Achieving near-normal glycated hemoglobin significantly, decreases ri...To achieve good metabolic control in diabetes and keep long term, a combination of changes in lifestyle and pharmacological treatment is necessary. Achieving near-normal glycated hemoglobin significantly, decreases risk of macrovascular and microvascular complications. At present there are different treatments, both oral and injectable, available for the treatment of type 2 diabetes mellitus(T2DM). Treatment algorithms designed to reduce the development or progression of the complications of diabetes emphasizes the need for good glycaemic control. The aim of this review is to perform an update on the benefits and limitations of different drugs, both current and future, for the treatment of T2 DM. Initial intervention should focus on lifestyle changes. Moreover, changes in lifestyle have proven to be beneficial, but for many patients is a complication keep long term. Physicians should be familiar with the different types of existing drugs for the treatment of diabetes and select the most effective, safe and better tolerated by patients. Metformin remains the first choice of treatment for most patients. Other alternative or second-line treatment options should be individualized depending on the characteristics of each patient. This article reviews the treatments available for patients with T2 DM, with an emphasis on agents introduced within the last decade.展开更多
Casing treatment is a widely employed technique to increase the stall margins of turbomachineries. In the last several decades, many researches on casing treatment have been carded out. However, the mechanism of its e...Casing treatment is a widely employed technique to increase the stall margins of turbomachineries. In the last several decades, many researches on casing treatment have been carded out. However, the mechanism of its expanding stall margins is still not very clear. Till now, most casing teatment schemes are designed for axial compressors, while the investigations on casing treatments in centrifugal compressors are rarely reported. Moreover, current investigation methods mainly focus on experiments, and perfect theoretic al analysis is not yet feasible. In order to study the effectiveness and further the mechanism of casing treatments in centrifugal compressors, in this paper, a computationally based investigation of the impact of the self-recireulating casing treatment on the performance of a radial compressor is carried out. The results indicate that, by casing bleed and injection, the casing treatment with inclined blades in the cavity expands the stall margin most. At low mass flows, the reversed flow through the cavity with inclined blades develops the counter swirl flow in front of the impeller inlet, which is considered to benefit increasing the pressure rise from the injection port to the bleed port and thereby augment the recirculating flow. At 120% design speed, the stall margin is larger than that at the design speed. However, the cost of extending the stall margin is the reduction of isentropic efficiency. A mended casing treatment by shifting the bleed port upstream is also studied. It is demonstrated that, relative to the original casing treatment, this mend can improve the efficiency evidently notwithstanding a little narrowing of the flow range.展开更多
基金National Natural Science Foundation of China,NO.81774274Project of Jiangsu Provincial Hospital of Traditional Chinese Medicine,NO.Y19058
文摘BACKGROUND Non-steroid anti-inflammatory drugs(NSAIDs)have played a crucial role in the treatment of osteoarthritis,especially in the early stages.However,the cardiovascular risk and adverse gastrointestinal reactions of oral NSAIDs in elderly people cannot be underestimated.Intra-articular injection of NSAIDs may be a new attempt for early knee osteoarthritis treatment.Parecoxib may be a suitable drug for intra-articular injection.AIM To observe the clinical efficacy of the intra-articular injection of parecoxib for early knee osteoarthritis.METHODS Early knee osteoarthritis patients(n=110)were retrospectively analyzed.These patients were divided into three groups:Basic treatment+oral glucosamine(group A,n=37),oral celecoxib+basic treatment+oral glucosamine(group B,n=37),and intra-articular injection of parecoxib+basic treatment+oral glucosamine(group C,n=36).Intra-articular injection of parecoxib was performed once every 2 wk at a dose of 40 mg each time,for three times total.The three groups were compared in terms of visual analogue scale(VAS)scores,Hospital for Special Surgery(HSS)scores and patient satisfaction before and after treatment.The levels of inflammatory cytokines in the synovial fluid were detected in the three groups before and after treatment.RESULTS All patients were followed up for an average of 15.5±2.7 mo.The clinical efficacy was estimated by VAS and HSS scores at 12 mo after treatment.Inflammatory cytokine levels in the synovial fluid were evaluated at 3 mo after treatment.VAS and HSS scores were significantly improved in each group compared with before(P<0.001).There were significant differences among the three groups in VAS and HSS scores(P<0.001).The clinical efficacy of group C was superior to that of groups A and B(P<0.001),while group B outperformed group A in this respect(P<0.001).The patient satisfaction was the highest in group C(P<0.001).After treatment,the levels of tumor necrosis factorα(TNF-α)and interleukin(IL)-6 in the synovial fluid decreased in each group compared with before(P<0.001),while the levels of IL-10 increased(P<0.001).The three groups differed significantly in the levels of TNF-a,IL-6 and IL-10 in the synovial fluid after treatment(P<0.001).CONCLUSION For patients with early knee osteoarthritis,intra-articular injection of parecoxib could effectively improve clinical symptoms.This method may be a reliable alternative for early knee osteoarthritis.
文摘AIM:To evaluate the long-term efficacy and safety of endoscopic obliteration with Histoacryl for treatment of gastric variceal bleeding and prophylaxis.METHODS:Between January 1994 and March 2010 at SoonChunHyang University Hospital,a total of 127 patients with gastric varices received Histoacryl injections endoscopically.One hundred patients underwent endoscopic Histoacryl injections because of variceal bleeding,the other 27 patients received such injections as a prophylactic procedure.RESULTS:According to Sarin classification,56 patients were GOV1,61 patients were GOV2 and 10 patients were IGV.Most of the varices were large(F2 or F3,111 patients).The average volume of Histoacryl per each session was 1.7±1.3 cc and mean number of sessions was 1.3±0.6.(1 session-98 patients,2 sessions-25 patients,≥3 sessions-4 patients).Twenty-seven patients with high risk of bleeding(large or fundal or RCS+or Child C) received Histoacryl injection as a primary prophylactic procedure.In these patients,hepatitis B virus was the major etiology of cirrhosis,25 patients showed GOV1 or 2(92.6%)and F2 or F3 accounted for 88.9%(n=24).The rate of initial hemostasis was 98.4%and recurrent bleeding within one year occurred in 18.1%of patients.Successful hemostasis during episodes of rebleeding was achieved in 73.9%of cases.Median survival was 50 mo (95%CI 30.5-69.5).Major complications occurred in 4 patients(3.1%).The rebleeding rate in patients with hepatocellular carcinoma or GOV2 was higher than in those with other conditions.None of the 27 subjects who were treated prophylactically experienced treatment-related complications.Cumulative survival rates of the 127 patients at 6 mo,1,3,and 5 years were 92.1%,84.2%,64.2%,and 45.3%,respectively.The 6 mo cumulative survival rate of the 27 patients treated prophylactically was 75%.CONCLUSION:Histoacryl injection therapy is an effective treatment for gastric varices and also an effective prophylactic treatment of gastric varices which carry high risk of bleeding.
基金supported by the National Natural Science Foundation of China(Grant No.82073439).
文摘Dear Editor,Treating psoriatic arthritis(PsA)is always difficult.Systemic treatments can be administered either orally or through intramuscular and intra-articular injection,including conventional synthetics,biologics and targeted synthetic disease-modifying antirheumatic drugs[1].The alternatives,topical external therapies,are not effective on joint lesions due to drug permeability issues.Drugs injected into the articular cavity are also unsuitable for small peripheral joint lesions,the most common manifestations of PsA.The limited treatment options for PsA present a challenge.
基金supported by the National Natural Science Foundation of China(Nos.50025412 and 60576011)the National Key Basic Research and Development Program of China(No.TG2000067203).
文摘The effects of two different heat-treatment atmospheres,nitrogen atmosphere and reducing nitrogen atmosphere with carbon,on the properties of Y2O3-doped aluminum nitride(AlN) ceramics were investigated.The AlN powder as a raw material was synthesized by self-propagating high-temperature synthesis(SHS) and compacts were fabricated by employing powder injection molding technique.The polymer-wax binder consisted of 60 wt.% paraffin wax(PW),35 wt.% polypropylene(PP),and 5 wt.% stearic acid(SA).After the removal of binder,specimens were sintered at 1850°С in nitrogen atmosphere under atmospheric pressure.To improve the thermal conductivity,sintered samples were reheated.The result reveals that the heat-treatment atmosphere has significant effect on the properties and secondary phase of AlN ceramics.The thermal conductivity and density of AlN ceramics reheated in nitrogen gas are 180 W·m^-1·K^-1 and 3.28 g·cm^-3 and the secondary phase is yttrium aluminate.For the sample reheated in reducing nitrogen atmosphere with carbon,the thermal conductivity and density are 173 W·m^-1·K^-1 and 3.23 g·cm^-3,respectively,and the secondary phase is YN.
文摘We report a case of a 63-year-old male who experienced an iatrogenic sigmoid perforation repaired combining three endoscopic techniques.The lesion was large and irregular with three discrete perforations,therefore,we decided to close it by placing one clip per perforation,and then connecting all the clips with two endoloops.Finally we chose to use a fibrin glue injection to obtain a complete sealing.Four days after the colonoscopy the patient underwent a laparoscopic right hemicolectomy due to evidence of a large polyp of the caecum with high grade dysplasia and focal carcinoma in situ.Inspection of the sigma showed complete repair of the perforation.This report underlines how a conservative approach,together with a combination of various endoscopic techniques,can resolve complicated iatrogenic perforations of the colon.
基金National Key research and Deve lopment Progr am(No.2018YFC1707410)。
文摘Objective:To explore the optimal scheme of Shengmai Injection combined with other drugs for clinical doctors.Methods:Based on the large-scale data warehouse established by the institute of Clinical Basic Medicine,Chinese Academy of Traditional Chinese Medicine,the hospital information system of 22 large-scale tertiary hospitals in China was collected and 1751 patients with angina pectoris who were treated with Shengmai Injection were selected.Louvain algorithm and complex network analysis are used to build the model to summarize the rule of Shengmai Injection in the treatment of angina pectoris of coronary heart disease.Results:On the basis of Shengmai Injection,according to the symptom treatment of angina pectoris of coronary heart disease,nitrates or Suxiao Jiuxin Pill was used to dilate coronary artery;for the treatment of risk factors of angina pectoris,a combination of"insulin+acarbose+bisoprolol+nifedipine+captopril+estazolam"was used to control blood glucose and blood pressure;"Ganmao Qingre Granule+levofloxacin"to treat upper respiratory tract infection and other medication regimens were used as well.For the complications of angina pectoris of coronary heart disease,"furosemide+spironolactone+potassium chloride+magnesium sulfate"was used to reduce edema and“isosorbide nitrate+metoprolol+Shenmai injection+Wenxin Granule"was used to improve symptom of heart failure of qi and yin deficiency type.Conclusion:The therapeutic regimen of Shengmai Injection combined with traditional chinese medicine and western medicine is basically consistent with the current guidelines,but more clinical studies are still needed to explore more effective combination therapy.
文摘The melt treatment of A1-7%Si alloy by the flux injection method in a resistance furnance was investigated. The experimental results show that the flux injection method can realize the melt treatment of A1-7%Si alloy. In purification, the flux injection method is superior to the standard lance degassing method. For the injection flux, the purifier Na2SiF6 is more powerful than Na3A1F6, the modifiers SrCl2, and R.E. Cl3 are quick acting, like NaF, but less powerful, the grain refiner containing K2TiF6 and KBF4 with Ti/B=1 is more potent than that with Ti/B=5. The analytical results indicate that the mass-transfer rate for the flux injection method is much higher than that for the conventional method .
文摘Objective To evaluate the effect of Xuesai-tong injection (XSTI, 血塞通注射液 , a preparation of Panax Notoginseng) as auxilliary treatment of severe craniocerebral injury. Methods Eighty-seven patients with severe craniocerebral injury were selected and randomly divided into the treated group (n=44) and the control group (n = 43), they were treated with conventional treatment, and XSTI was given additionally to the treated group. Intracranial pressure (ICP) and Glasgow coma score (GCS) of all patients were measuredafter 1 or 2-week treatment, and Glasgow outcome scale (GOS) of them was determined 3 months later. Then the therapeutic effect in the two groups were compared. Results After treatment, the ICP was lower, GCS higher and GOS better in the treated group than those in the control group significantly, all showing statistical significance (P<0.05). Conclusion XSTI has marked clinical therapeutic effect in treating patients with severe craniocerebral injury.Original article on CJITWM (Chin) 2004 ;23 (3): 213
文摘Objective: To study the effect of intramuscular calcitonin injection combined with intra-articular ozone injection on the expression of the IL family and MMPs family of knee osteoarthritis. Methods: A total of 128 patients with knee osteoarthritis who were treated in the hospital between January 2015 and January 2017 were collected and divided into control group and observation group by random number table, each with 64 cases. Control group received intra-articular ozone injection therapy, and observation group received intramascular calcitonin injection combined with intra-articular ozone injection therapy. The differences in serum levels of IL family members and MMPs family members were compared between the two groups before and after treatment. Results: Before treatment, the differences in serum levels of IL family members and MMPs family members were not statistically significant between the two groups. 1 week after treatment, serum levels of IL family members IL-1β, IL-15, IL-17 and IL-18 as well as MMPs family members MMP-1, MMP-2, MMP-3 and MMP-13 of both groups of patients were significantly lower than those before treatment, and serum IL-1β, IL-15, IL-17, IL-18, MMP-1, MMP-2, MMP-3 and MMP-13 levels of observation group were significantly lower than those of control group. Conclusion: Intramuscular calcitonin injection combined with intra-articular ozone injection therapy can effectively inhibit the expression of IL family and MMPs family in patients with knee osteoarthritis.
文摘In the present paper, 35 cases of fothergill syndrome (prosopalgia) of the treatment group were treated with acupuncture and point-injection of VitB12, and 30 cases of the control group were treated with oral administration of carbarnazepine. Results showd that in the trearment group, 6 cases were maredly effective, 27 effective and 2 ineffective, with an effective rate of 94. 29 %; in the control group, 2 cases were markedly effective, 10 effective and 18 ineffective, with an effective rate of 40. 00%. There was a significant difference between the two groups in the effective rate (P < 0.01). The acupuncture therapy is strikingly superior to treatment of prosopalgia with Western medicine and has lower side-effects and a lower recurrence rate.
基金funded by Sichuan Jiuzhang Biological Science and Technology Co.,Ltd.the Drug Innovation Major Project in China(Grant No.2016ZX09101017)the National Nature Science Foundation(Grant No.81972338)。
文摘Objective:This study was aimed at analyzing the efficacy and safety of an injectable form of chlorogenic acid(CGA)in patients with recurrent high-grade glioma after standard of care treatments,through a first-in-human,open-label,dose-escalation phase I trial.Methods:A total of 26 eligible patients were enrolled,received intramuscular CGA injections at 5 dose levels,and were followed up for 5 years.CGA was well tolerated,and the maximum tolerated dose was 5.5 mg/kg.Results:The most common treatment-related adverse events occurred at the sites of injection.No grade 3 or 4 adverse events(e.g.,drug allergy)were reported for these patients except for induration at the injection sites.A clinical pharmacokinetic study showed that CGA was rapidly eliminated from the plasma,with a t_(1/2)of 0.95–1.27 h on day 1 and 1.19–1.39 h on day 30,and no detectable CGA was observed on days 9,11,13,23,25,27,and 29 before CGA administration.After the first treatment cycle,52.2%of patients(12 of 23)achieved stable disease.Long-term follow-up indicated an estimated median overall survival of 11.3 months for all 23 evaluable patients.Of the 18 patients with grade 3 glioma,the median overall survival was 9.5 months.Two patients remained alive at the cutoff day.Conclusions:This phase I study demonstrated that CGA has a favorable safety profile(with no severe toxicity),and provides preliminary clinical benefits for patients with high grade glioma relapsing after prior standard therapies,thus shedding light on the potential clinical application of CGA for recurrent grade 4 glioma.
文摘AIM: To test whether intra-articular injection of porcine adipose-derived stem cells(ADSCs) can treat canine osteoarthritis(OA).METHODS: To enroll in this study dogs must have stifle joint OA that had lasted ≥ 3 mo and been treated with OA medication without significant improvement. Three dogs fulfilled these criteria and were thus subjects for ADSCs treatment. ADSCs were isolated from abdominal adipose tissue of a 2-mo-old female Yorkshire pig. Their stem cell marker expression was examined by immunofluorescence staining. For treatment, 5 million ADSCs were injected into the diseased joint of each dog. In the next 48 h, the patient was observed for signs of inflammatory and allergic reactions. Thepatient was then discharged to the owner and, at 2, 6, and 12 wk, followed up with orthopedic assessment, owner questionnaire, X-ray imaging, and force-plate gait analysis.RESULTS: Porcine ADSCs expressed mesenchymal stem cell markers CD90 and CD105. Injection of porcine ADSCs into canine stifle joints did not cause any inflammatory or allergic reactions. Orthopedic evaluation found improvements in two dogs, particularly at the longest time point. Owners' evaluation found increased capacity and decreased pain in all three dogs' activities such as walking and running. Radiographic evaluation did not find statistically significant differences before and after treatment. Force-plate analysis found significant improvements in all three dogs after treatment.CONCLUSION: Xenotransplantation of ADSCs for the treatment of OA is feasible. Further studies are needed to validate this novel treatment modality, which can then be implemented for the routine treatment of OA in veterinary medicine.
文摘Aiming to meet the demand of the country' s nuclear demonstration project on the CAP1400 nuclear power plant, Baosteel uses the roll-bonding technology and develops the SA-533 Type B CL. 1 + SA-240 Type 304L high-strength and high-toughness clad steel plate with a shear strength of over 310 MPa for the nuclear power plant' s safety injection tank. The properties of the quenched and tempered and the simulated post-weld heat treatment states are systematically studied herein through a comprehensive inspection and evaluation of the composition,microstructure,and properties of the clad steel plate. The results show that the bonding interface has high shear strength and that the base metal has high strength and good toughness at low temperatures. Hence, the performance fully meets the technical requirements of the CAP1400 nuclear power plant' s safety injection tank in the country' s nuclear demonstration project. The roll-bonded clad steel plate can be used to manufacture the safety injection tank of the CAP1400 nuclear power plant.
基金Project supported by the National Natural Science Foundation of China (50025412) National 863 Program( 2001 AA337050 )
文摘The bonded NdFeB magnets prepared by injection molding meet with the development tendency of the magnet in small volume, light weight and high performance ,and have a good prospect.In this paper, a modified nylonbased binder was developed for powder injection molding of NdFeB bonded magnets.The effects of pretreatment of NdFeB anisotropic magnetic powder produced with HDDR processing on the anti-oxidation behaviors of powder and the final magnetic properties of the molded bonded magnets were studied.The optimal powder loading of 65 vol% was achieved with the modified binder.It was found that the properties of the bonded magnets were mainly affected by the powder surface pretreatment and the intensity of the applied alignment magnetic field during injection molding for a certain powder.Bonded magnets with remanence of 0.820 T, intrinsic coercivity of 1140.3 kA· m-1 and maximum energy product of 111 kJ · m-3 were produced with the optimal processing.
文摘The use of injectable agents for the treatment of stress urinary incontinence(SUI)is an option for female patients who are unwilling to undergo surgery,or have concurrent conditions or diseases that render surgical treatment unsuitable.To be effective for SUI,an injectable agent must be nonimmunogenic,hypoallergenic,biocompatible,permanent,nonerosive,nonmigratory and painless.It must also heal with minimal fibrosis,possess a long-term bulking effect,and be easily stored and handled.Glutaraldehyde cross-linked bovine collagen(Contigen),silicone polymers(Macroplastique),Durasphere,calcium hydroxyapatite(Coaptite),polyacrylamide hydrogel(Aquamid,Bulkamid),Permacol,and stem cell therapy have been used as injectable agents.Patients must be informed that treatment with injectable agents is not as effective as surgical treatment,and that such agents might necessitate additional and repeated administrations in order to achieve the desired therapeutic effect.
文摘An outward-going intervertebral foramina puncture along the side of lumbar vertebra spinous process was used to avoid infusing drugs into the subarachnoid space. However, we still had an inadvertent malpractice. The patient was diagnosed with lumbar discogenic lower back pain and was administrated an outward-going intervertebral foramina puncture through the side of lumbar vertebra spinous process (L5</sub>-S1</sub>). The drug mixture, containing triamcinolone acetonide suspension, cyanocobalamin and bupivacaine HCl, was injected. The patient had palpitations, chest tightness, dyspnea, bradycardia, and hypotension 3 min right after the injection. The vital signs gradually stabilized after treatment with atropine sulfate;however, he had complete sensorimotor loss below the level of distribution of the T2</sub> spinal nerve. The cerebrospinal fluid pressure was lower in the subarachnoid space and the cerebrospinal fluid was slightly turbid and light pink in color. Six hours later, the sensory, motor, defecation, and urination functions returned to normal level. The patient had follow-up evaluations at 1, 3, and 6 months. The lumbar and hip pain was mild-to-severe at times as usual, but there were no other neurologic sequelae. Conclusions: This case showed that there is a risk that drugs may stray into the subarachnoid space during an outward-going intervertebral foramina puncture through the side of lumbar vertebral spinous process. The complication may occur due to a distal nerve root cyst. The result of triamcinolone acetonide suspension and cyanocobalamin injection into the cerebrospinal fluid was not as serious as we imagined.
文摘Objective: To investigate the suitable time of treating virulent and side effects of chemotherapy for malignant tumor by acupoint injection of Astragalus Root injection. Methods: Sixty three patients with malignant tumor were divided into three groups: prevention treatment (PT) group (n=23 cases),post chemotherapy treatment (PCT) group( n=22 cases), Western medicine (WM) group ( n=18 cases). The patients in PT, PCT and WM groups were treated respectively from the fifth day on before chemotherapy and from the first day on after chemotherapy, 18 days in all. The patients in WM group were administered Batilol and Leucogen from the first day on after chemotherapy. Changes of leukocytes and immunoglobulin before and after treatment were observed. Results: 1) Acupoint injection of Astragalus Root injectio could increase the number of leukocytes and immunoglobulin content and its effect was better than that of Western medicine (P<0.05); 2) The effect of PT group was better than that of PCT group in preventing and treating virulent and side effects of chemotherapy (P<0.05). Conclusion: It should be stressed on prevention of malignant tumor by using acupoint injection of Astragalus Root for relieving virulent and side effects of chemotherapy.
文摘In the article titled,"Efficacy and safety of darbepoetin alfa injection replacing epoetin alfa injection for the treatment of renal anemia in Chinese hemodialysis patients:A randomized,open-label,parallel-group,noninferiority phase Il trial"published in pages 134-144,issue 2,vol.8 of Chronic Diseases and Translational Medicine,the information of trial registration at the end of Abstract is missing.The registration information should be:This study has been registered on www.chinadrugtrials.org.cn,registered number CTR20130079.
文摘To achieve good metabolic control in diabetes and keep long term, a combination of changes in lifestyle and pharmacological treatment is necessary. Achieving near-normal glycated hemoglobin significantly, decreases risk of macrovascular and microvascular complications. At present there are different treatments, both oral and injectable, available for the treatment of type 2 diabetes mellitus(T2DM). Treatment algorithms designed to reduce the development or progression of the complications of diabetes emphasizes the need for good glycaemic control. The aim of this review is to perform an update on the benefits and limitations of different drugs, both current and future, for the treatment of T2 DM. Initial intervention should focus on lifestyle changes. Moreover, changes in lifestyle have proven to be beneficial, but for many patients is a complication keep long term. Physicians should be familiar with the different types of existing drugs for the treatment of diabetes and select the most effective, safe and better tolerated by patients. Metformin remains the first choice of treatment for most patients. Other alternative or second-line treatment options should be individualized depending on the characteristics of each patient. This article reviews the treatments available for patients with T2 DM, with an emphasis on agents introduced within the last decade.
基金supported by National Natural Science Foundation of China (Grant No. 50776056)National Hi-tech Research and Development Program of China (863 Program, Grant No. 2006AA05Z250)
文摘Casing treatment is a widely employed technique to increase the stall margins of turbomachineries. In the last several decades, many researches on casing treatment have been carded out. However, the mechanism of its expanding stall margins is still not very clear. Till now, most casing teatment schemes are designed for axial compressors, while the investigations on casing treatments in centrifugal compressors are rarely reported. Moreover, current investigation methods mainly focus on experiments, and perfect theoretic al analysis is not yet feasible. In order to study the effectiveness and further the mechanism of casing treatments in centrifugal compressors, in this paper, a computationally based investigation of the impact of the self-recireulating casing treatment on the performance of a radial compressor is carried out. The results indicate that, by casing bleed and injection, the casing treatment with inclined blades in the cavity expands the stall margin most. At low mass flows, the reversed flow through the cavity with inclined blades develops the counter swirl flow in front of the impeller inlet, which is considered to benefit increasing the pressure rise from the injection port to the bleed port and thereby augment the recirculating flow. At 120% design speed, the stall margin is larger than that at the design speed. However, the cost of extending the stall margin is the reduction of isentropic efficiency. A mended casing treatment by shifting the bleed port upstream is also studied. It is demonstrated that, relative to the original casing treatment, this mend can improve the efficiency evidently notwithstanding a little narrowing of the flow range.