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1.
成骨生长肽促进化疗小鼠造血功能的恢复   总被引:5,自引:1,他引:4  
目的 研究人工合成成骨生长肽(sOGP)对化疗损伤小鼠造血功能恢复的促进作用。方法 用环磷酰胺(Cy)腹腔注射每日100mg/kg连续3d,造成小鼠的化疗损伤模型,造模前3天始给予不同剂量的sOGP(每日5~625nmol/kg)连续8d,采用皮下注射和肌肉注射2种给药途径,第9天检测外周血白细胞(WBC)、骨髓有核细胞数(BMNC)、骨髓粒系造血祖细胞集落(CFU—G)形成、骨髓细胞分类和骨髓切片组织学等的变化。结果 sOGP能促进Cy损伤小鼠WBC、BMNC的恢复,各剂量组间无明显差异,且效果不及阳性对照药rhG-CSF;而CFU-G的形成则明显高于rhG-CSF;骨髓细胞分类计数显示sOGP对粒系、红系和巨核系都有促恢复的作用;组织学切片显示sOGP具有与rhG—CSF相似的促恢复作用。皮下注射和肌肉注射2种给药途径没有引起结果的差异。结论 sOGP可明显促进Cy损伤小鼠造血功能的恢复,其作用环节可能在造血的上游位置,提示sOGP作为血液系肿瘤治疗辅助用药的潜在价值。  相似文献   

2.
目的 :观察重组人粒细胞集落刺激因子 (rhG CSF)对辐射致小鼠中性粒细胞减少的治疗作用。方法 :分别用rhG CSF 10 μg·kg- 1 ·d- 1 和 30 μg·kg- 1 ·d- 1 二个剂量对辐射致中性粒细胞减少症小鼠皮下注射 ,观察rhG CSF对辐射小鼠脾脏重量、脾表面造血灶 (CFU S)数、骨髓有核细胞数和骨髓DNA含量及骨髓粒 单核系祖细胞 (CFU GM)的影响。结果 :rhG CSF二个剂量对钴6 0 照射小鼠有明显增加脾脏重量和CFU S数 ,加速小鼠骨髓DNA合成速率的作用 ;CFU GM细胞集落形成增多。结论 :rhG CSF对辐射所致小鼠中性粒细胞减少有明显促进其造血功能的恢复、增加外周血白细胞数和中性粒细胞数  相似文献   

3.
钝顶螺旋藻多糖对辐射所致小鼠造血功能抑制的对抗影响   总被引:11,自引:0,他引:11  
目的 观察钝顶螺旋藻多糖 (Spirulinaphatensispolysaccharide ,SPP)对辐射损伤小鼠造血功能的影响。方法 小鼠5Gy全身照射后 5、10、15d分别取材 ,作骨髓粒单系、红系造血祖细胞培养 ,造血干细胞集落测定 ,以及外周血常规计数等。SPP用量为 12 5mg·kg 1 ·d 1 ,ip,伤后连续注射 6d。结果 辐射损伤后骨髓有核细胞数、粒单系CFU GM、红系CFU E、BFU E及造血干细胞CFU S集落数均显著低于正常对照组 (P <0 .0 1) ,但应用SPP后 ,上述各项指标数值 ,均比同伤情的不用药组显著提高 ,尤以伤后10d恢复最快 (P <0 .0 1)。结论 SPP对辐射损伤有明显保护和促进造血恢复的作用。  相似文献   

4.
高原缺氧条件下急性放射损伤造血系统变化特点的研究   总被引:1,自引:0,他引:1  
目的:探讨高原缺氧条件下,急性放射损伤小鼠存活率和造血系统的变化特点。方法:小鼠模拟5000m高原缺氧3d后,接受6Gy一次性γ射线全身照射,照后继续在缺氧条件下饲养,观察其存活率。外周血指标,骨髓有核细胞数,血清TGF-β1和EPO的含量,CFU-GM和CFU-E集落形成能力的改变,实验动物血清对CFU-GM和CFU-E集落形成的影响。结果:发现模拟高原缺氧条件下可提高急性放射损伤小鼠的存活率,并在照射后第3天,表现为外周血红细胞和骨髓红系造血损伤较平原照射损伤为但外周血白细胞和骨髓粒系造血损伤则有所加重。结论:模拟高原缺氧条件,可使小鼠红系造血功能对急性放射损伤的抗性有所增强。  相似文献   

5.
目的 研究人工合成成骨生长肽(sOGP)对实验性再生障碍性贫血(EAA)小鼠造血功能恢复的促进作 用。方法BALB/C小鼠辐射5Gy后,尾静脉输注DBA/2小鼠混合淋巴细胞1×105个/鼠,建立EAA动物模 型。造模次日始腹腔注射sOGP共12d,每天分别为0.05、0.5、5.0 nmol/鼠,共3个剂量组,第14天杀鼠检测体 重、脾重、血常规、骨髓有核细胞数(BMNCs)、骨髓涂片及胸骨切片等,并作粒细胞-巨噬细胞集落形成单位(CFU -GM)培养。结果 骨髓涂片与胸骨切片中均可见随着sOGP治疗剂量的增高,骨髓增生逐渐有所恢复;各组 CFU-GM增殖能力则表现出显著差别,治疗效果与剂量有明显的正相关线性关系。结论 sOGP可有效促进 EAA小鼠造血功能的恢复,其作用环节可能位于干细胞或其上游水平,提示sOGP在促进造血恢复方面的潜在 前景。  相似文献   

6.
目的 观察螺旋藻多糖 (SPP)对放烧复合伤所致造血功能抑制的保护作用。方法 小鼠 5Gy全身照射复合 15 %Ⅲ度烧伤后 5、10、15d分别取材 ,作骨髓粒单系、红系造血祖细胞培养 ,造血干细胞集落测定 ,以及外周血常规计数等。SPP用量为 12 5mg·kg-1·d-1,ip ,伤后连续注射 6d。结果 放烧复合伤后骨髓有核细胞数、粒单系CFU GM、红系CFU E、BFU E及造血干细胞CFU S集落数均显著低于正常对照组 (P <0 0 1) ,但应用SPP后 ,上述各项指标数值 ,均比同伤情的不用药组显著提高 ,尤以伤后 10d恢复最快 (P <0 0 1)。结论 SPP对放烧复合伤有明显保护和促进造血恢复的作用  相似文献   

7.
王胜春  罗洪汉 《医学争鸣》1999,20(7):636-639
探讨重组人粒细胞巨噬细胞集落刺激因子对受照小鼠外周血和骨髓细胞的影响。方法采用6.0Gy^60Co-γ照射小鼠造成造血功能损伤,采尾静脉血计数外周血白细胞及其分类,取一侧股骨骨髓计数骨髓有核细胞,取另侧骨髓制片观察骨髓粒系分裂池,存贮池,成熟池骨髓细胞绝对值动态变化。  相似文献   

8.
骨髓间充质干细胞移植重建极重度放射损伤小鼠造血功能   总被引:3,自引:1,他引:3  
目的:探讨小鼠骨髓间充质干细胞(mouse bone marrow mesenchymal stem cell,mMSC)单独输注对重度放射损伤小鼠造血功能重建的影响.方法:将体外培养扩增的雄性C57BL/6小鼠骨髓间充质干细胞输注给受致死剂量全身照射(8 Gy)的雌性C57BL/6小鼠,检测移植后外周血象、骨髓有核细胞数、病理变化、粒-单核细胞系祖细胞集落(CFU-GM)计数及性染色体比例,以未输注MSCs的小鼠作对照.结果:对照组小鼠(n=6)在照射后20 d内全部死于造血功能衰竭;MSCs组移植后血象明显下降,但2周后迅速恢复,28 d时恢复到照射前的60%左右,42 d外周血象基本恢复.MSC促进骨髓有核细胞数及CFU-GM快速恢复,有利于骨髓组织学的明显恢复改善.移植后42 d,仍可在受致死量照射的受体鼠内检测到供体MSC,但不能长期植入.结论:小鼠骨髓间充质干细胞单独输注可促进重度放射损伤小鼠的造血功能恢复,其植入时间长短可能与输注的细胞量有关.  相似文献   

9.
采用小鼠体内液体扩散盒及脾结节法观察了胎鼠和成年小鼠肝脏无细胞液对大剂量环磷酰胺化疗后小鼠骨髓造血细胞增殖与分化的影响。发现无细胞胎肝液能明显促进受抑制骨髓中多能造血干细胞(CFU—S)的集落形成率,但对扩散盒内粒系祖细胞(CFU—D)的增殖分化无促进作用。成年鼠肝无细胞液则对造血细胞的增殖无刺激活性,不能促进化疗后小鼠骨髓中造血干细胞恢复。认为无细胞胎肝液中存在的造血刺激因子能有效缓解细胞毒剂对骨髓多能造血干细胞的抑制。  相似文献   

10.
目的:研究CBLB502对辐射造血损伤的防护作用。方法C57BL/6J小鼠随机分为正常对照、60Co γ射线6.5Gy一次性全身照射对照和CBLB502照前30 min 0.2mg/kg皮下给药预防组,照前1 d和照后30 d定期检测外周血细胞数,照射后2和24 h取骨髓检测有核细胞数和集落形成数,竞争性移植方法观察骨髓造血细胞植入能力,流式细胞仪测定外周血中各系细胞比例。结果CBLB502能显著减轻60Co γ射线6.5 Gy照射小鼠的外周血中白细胞、红细胞及血小板数的急剧降低并加速其恢复,照后2和24 h CBLB502预防给药组小鼠骨髓各系造血祖细胞集落形成数均显著高于照射对照组(P<0.01),且预防给药可明显提高受照射小鼠骨髓造血细胞的植入能力。结论 CBLB502具有明显的辐射造血损伤保护作用。  相似文献   

11.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

12.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

13.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

14.
目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.  相似文献   

15.
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

16.
Objective:To investigate the gene expression of osteoprotegerin(OPG) and osteoclast differentiation factor(ODF) in the bone tissue of patients with hip fracture due to osteoporosis. Methods:OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers(over 50 years old) with hip fracture(Observer Group) and 30 cases of hip facture sufferers with no osteoporosis(Control group) were analyzed with the Semi-Quantitative RT-PCR method. Results:The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion:Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.  相似文献   

17.
Objective:To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas(SPTP). Methods:Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin(HE) staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results:Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin(9/9 cases), AAT(9/9 cases), NSE(9/9 cases), ACT(7/9 cases), CK20(2/9 cases), CgA(1/9 cases), S-100(3/gcases), PR(4/gcases), Syn(3/9 cases) and CD56(5/9cases), negative in CEA and ER. Conclusion:SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.  相似文献   

18.
Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.  相似文献   

19.
In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.  相似文献   

20.
Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

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