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61.
在心肌细胞分化性生长时期,改变新生鼠的哺乳期营养条件对这些鼠的空间隔心肌细胞将会产生暂时性作用和持久性影响。哺乳期高营养的暂时性作用是增加空间隔心肌细胞的大小和数量;而低营养的暂时性作用则是减慢室间隔心肌细胞的生长。哺乳期高营养的持久性作用是限制室间隔心肌细胞的过度肥大;而低营养则促进成熟鼠的室间隔心肌细胞的过度肥大。 相似文献
62.
应用免疫组化方法完成了胰岛素样生长因子(IGF-I)在48例人前列腺增生中的组织定位。组织经4%甲醛固定,石蜡包埋。IGF-I免疫反应主要定位于腺体基底层上皮细胞浆内,阳性染色也见于腺体分泌上皮、鳞状化生上皮、平滑肌细胞和神经纤维细胞内。证实:IGF-I存在于前列腺增生患者的前列腺组织中,并且与前列腺增生的发病有一定关系。 相似文献
63.
64.
Reversible and irreversible airway inflammation and fibrosis in mice exposed to inhaled ovalbumin 总被引:1,自引:0,他引:1
Objective and design: We examined the reversibility of several changes in the lungs and airways of mice immediately after exposure to ovalbumin aerosol and after a period of recovery breathing clean air.Methods: Mice were exposed for 1, 2, 4, 6, 8, or 10 weeks, with recovery in clean air for 1–3 weeks.Results: Airway collagen content, exhaled NO, airway mucous cell hyperplasia, and lung lavage inflammatory cell content increased upon exposure to ovalbumin aerosol. All parameters except airway fibrosis decreased partially or completely to control values with recovery in clean air.Conclusions: Airway mucous cell hypertrophy and hyperplasia appear to be completely reversible after recovery in clean air, while exhaled NO and airway inflammation appear to be mostly reversible, except for persistence of lymphocytes in the lung lavage fluid. Airway fibrosis appears to be reversible when mice are exposed to ovalbumin aerosol for periods of up to 4 weeks of exposure, but becomes irreversible after 6 or more weeks of exposure.Received 30 June 2004; returned for revision 24 September 2004; accepted by J. S. Skotnicki 13 October 2004 相似文献
65.
Adeno-Associated Viral Vector-Mediated Interleukin-10 Prolongs Allograft Survival in a Rat Kidney Transplantation Model 总被引:5,自引:0,他引:5
B. Chen M. H. Kapturczak R. Joseph J. F. George M. Campbell-Thompson C. H. Wasserfall M. A. Atkinson C. C. Tisher T. R. Flotte A. Agarwal S. Chen 《American journal of transplantation》2007,7(5):1112-1120
Interleukin-10 (IL-10) is a pleiotropic cytokine that plays a pivotal role in the regulation of immune responses. Hence, we evaluated the effects of a recombinant adeno-associated viral vector 1 (rAAV1) encoding rat IL-10 (rAAV1-IL-10) in a rat model of kidney allograft rejection. Dark Agouti rat kidneys were transplanted into Wistar-Furth (WF) rats 8 weeks following a single intramuscular administration of either rAAV1-IL-10 or rAAV1-green fluorescence protein (GFP). Isografts (WF-WF) served as an additional experimental control. Both allograft and isograft recipients received daily cyclosporine (10 mg/kg) for 14 days after transplantation. Serum IL-10 levels increased at 8, 12 and 16 weeks following vector administration in rAAV1-IL-10-treated animals, but not in rAAV1-GFP and isograft groups. rAAV1-IL-10 treatment resulted in lower BUN and creatinine levels (p<0.001), as well as increased allograft survival rates from 22% to 90%. Allograft histological abnormalities were significantly attenuated in the rAAV1-IL-10-treated rats compared with those of rAAV1-GFP controls. Serum levels of proinflammatory cytokines such as growth-related oncogene were also significantly higher in the rAAV1-GFP group than in the rAAV1-IL-10 group. These data suggest delivery of IL-10 using a rAAV1 vector improves renal function and prolongs graft survival in a rat model of kidney transplant rejection. 相似文献
66.
经尿道前列腺电汽化联合撬拨术治疗高龄前列腺增生症 总被引:2,自引:1,他引:1
目的探索微创手术治疗高龄前列腺增生症(benign prostatic hyperlasia,BPH)的安全有效新方法. 方法采用经尿道前列腺电汽化(transurethal vaporiyation of prostate,TUVP)联合撬拨术治疗80岁以上BPH 68例. 结果手术时间30~160 min,平均60 min,切除腺体重量12.5~98.5 g,平均37.6 g,术中出血量30~120 ml,平均65 ml,术后住院5~7 d,平均6 d.术后随访0.5~2年,国际前列腺症状评分由(23.5±4.2)分降至(6.5±2.1)分,生活质量评分由(4.6±0.6)分降至(2.2±0.2)分,最大尿流率由(8.7±4.3)ml/s升至(18.0±2.2)ml/s,剩余尿由(176.0±86.7)ml降至(12.2±2.4)ml.与术前相比,术后6个月均得到显著改善(P<0.01). 结论 TUVP加撬拨术治疗高龄BPH安全有效,并发症少. 相似文献
67.
目的:对良性前列腺增生(BPH)合并慢性前列腺炎的发病情况进行分析和探讨。方法:对213例已确诊为BPH患者进行前列腺按摩液(EPS)常规检查及EPS细菌培养,支原体、衣原体检测和血清PSA检测。对合并慢性前列腺炎的患者,进行抗炎治疗前后的BPH症状评分(IPSS)比较。结果:213例BPH患者中,合并慢性前列腺炎69例(32.4%),EPS细菌培养阳性27例(12.7%),EPS支原体、衣原体检测,15例阳性(7.0%)。合并慢性前列腺炎的患者中有7例PSA异常(>4μg/L)。69例合并慢性前列腺炎的患者经抗炎治疗后,IPSS由治疗前(12.2±2.6)分,降为治疗后(10.5±2.3)分,差异有显著性(P<0.01)。结论:BPH患者进行EPS检查,以明确是否合并有慢性前列腺炎,对临床上明确诊断、选择治疗药物或手术方式,提高疗效及减少并发症都有着重要意义。 相似文献
68.
69.
Seethalakshmi Viswanathan Naveen Chawla Anil D’Cruz Shubhada V. Kane 《Head and neck pathology》2007,1(2):169-172
Histoplasmosis is a rarely reported deep mycotic infection in the Indian context. Oral or oropharyngeal manifestation can
occur as an isolated symptom or as part of a disseminated process associated with immunosuppression especially with HIV and
diabetes. Five cases of head and neck histoplasmosis accrued over 6 years in a tertiary referral cancer institute were reviewed.
All these patients presented clinically as cancer. In three patients, the marked pseudoepitheliomatous hyperplasia led to
a mistaken biopsy diagnosis of malignancy following which definitive surgical treatment was performed. The subsequent excision
revealed typical features of histoplasmosis. Isolated oral presentation of histoplasmosis can mimic malignancy both clinically
as well as pathologically, leading to potentially disastrous consequences. A high index of suspicion in those with overt or
hidden immunosuppression and a deep wedge biopsy to demonstrate the organisms in the subepithelial tissue is recommended.
This work has been presented in the “Slide seminar on Infections and Infestations” in the IAP-ID pre conference CME in APCON
2006. 相似文献
70.