Iliopsoas Abscess Due to Brenner Tumor Malignancy: A Case Report

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同时测定复方磺胺药各组分的卡尔曼滤波紫外分光光度法

研究了卡尔曼滤波紫外分光光度法测定复方新诺明片和增效联磺片中各组分的实验条件,结果复方新诺明片平均回收率分别为100.4±0.2%(SMZ)和100.4±0.5%(TMP);增效联磺片平均回收率分别为99.5±0.7%(SMZ)、100.8±0.6%(SD)和99.2±0.6%(TMP)。     

抗HPT单克隆抗体的制备与生物学特性鉴定

目的：制备抗潮霉素B磷酸转移酶(HPT)的单克隆抗体(McAb)，建立一种快速检测转基因作物中该选择标记基因HPT编码蛋白的方法。方法：用基因重组潮霉素B磷酸转移酶(HPT)抗原免疫BALB/C小鼠，采用杂交瘤技术制备McAb。选择不同的抗原决定簇与兔抗HPT多抗配对，建立双抗夹心ELISA检测HPT抗原。结果：筛选出四株稳定分泌抗HPT单抗的杂交瘤细胞株，IgG亚类鉴定均为IgG1，ELISA检测证实单抗可特异性识别细胞培养上清、重组子菌体裂解产物中及纯化出的HPT蛋白。结合位点测定实验表明4株单抗是针对不同的抗原决定簇，与多克隆抗体组成双抗夹心ELISA法，均可较好地检测到HPT抗原。检测的灵敏度为30ng／ml，且与别的无关抗原无交叉反应性。结论：4株杂交瘤细胞株特异性好，亲和力强，组成双抗夹心ELISA法可用于快速、灵敏检测HPT抗原。     

中国9个长寿地区65岁及以上人群血铅浓度与认知功能受损的关联研究

目的探讨65岁及以上人群血铅水平与认知功能受损的关联。方法研究对象来自2017-2018年在我国9个长寿地区开展的“老年健康生物标志物队列研究”,最终将1684名血铅和认知功能数据完整的65岁及以上人群纳入本研究。通过问卷调查和体格检测,收集调查对象的人口学特征、生活方式、健康状况及认知功能评分等信息;同时采集调查对象的静脉血以检测血铅水平。根据血铅水平的四分位数将调查对象分为4组(Q₁-Q₄组),采用多因素logistic回归模型分析血铅浓度与认知功能受损的关系,采用限制性三次样条检验血铅浓度与认知受损之间是否存在非线性关联。结果1684名研究对象年龄为(83.1±11.1)岁,其中女性843名(50.1%);认知功能受损者191名(11.3%)。调整相关混杂因素后,老年人血铅浓度每升高10μg/L,认知功能受损患病风险OR(95%CI)值为1.05(1.01~1.10);与血铅浓度Q1组老年人相比,血铅浓度较高者认知功能受损的患病风险较高,Q₂,Q₃,Q₄组的OR(95%CI)值分别为1.19(0.69~2.05)、1.45(0.84~2.51)和1.92(1.13~3.27)。结论我国9个长寿地区65岁及以上老年人血铅水平与认知功能受损患病风险存在关联。     

Efficacy and tolerability of anti-asthma herbal medicine intervention in adult patients with moderate-severe allergic asthma

BACKGROUND: Chinese herbal medicine has a long history of human use. A novel herbal formula, anti-asthma herbal medicine intervention (ASHMI), has been shown to be an effective therapy in a murine model of allergic asthma. OBJECTIVE: This study was undertaken to compare the efficacy, safety, and immunomodulatory effects of ASHMI treatment in patients with moderate-severe, persistent asthma with prednisone therapy. METHODS: In a double-blind trial, 91 subjects underwent randomization. Forty-five subjects received oral ASHMI capsules and prednisone placebo tablets (ASHMI group) and 46 subjects received oral prednisone tablets and ASHMI placebo capsules (prednisone group) for 4 weeks. Spirometry measurements; symptom scores; side effects; and serum cortisol, cytokine, and IgE levels were evaluated before and after treatment. RESULTS: Posttreatment lung function was significantly improved in both groups as shown by increased FEV(1) and peak expiratory flow findings (P<.001). The improvement was slightly but significantly greater in the prednisone group (P<.05). Clinical symptom scores, use of beta(2)-bronchodilators, and serum IgE levels were reduced significantly, and to a similar degree in both groups (P<.001). T(H)2 cytokine levels were significantly reduced in both treated groups (P<.001) and were lower in the prednisone-treated group (P<.05). Serum IFN-gamma and cortisol levels were significantly decreased in the prednisone group (P<.001) but significantly increased in the ASHMI group (P<.001). No severe side effects were observed in either group. CONCLUSION: Anti-asthma herbal medicine intervention appears to be a safe and effective alternative medicine for treating asthma. In contrast with prednisone, ASHMI had no adverse effect on adrenal function and had a beneficial effect on T(H)1 and T(H)2 balance.     

雷公藤多苷片对小儿肾性蛋白尿的影响

目的 :探讨雷公藤多苷片在小儿原发性和继发性肾病综合征治疗中的价值及降低肾性蛋白尿的作用。方法 :选择近 4年来 3 0例病人 ,全部经肾活检确定病理类型。口服雷公藤多苷片 1 .5mg·kg- 1 ·d- 1 ,共 4wk ,观察浮肿消退 ,尿量增减及消化道反应 ,定期检查 2 4h尿蛋白定量、肝肾功能、外周血象及血浆蛋白变化。结果 :3 0例中 1 4例得到缓解 ,1 2例改善 ,有效共 2 6例 ,占 86.7% ,其中治疗 1wk后有效 7例 ,2wk后有效 9例 ,4wk后无效 4例 ,3 0例中仅有个别轻度消化道症状 ,少数病人治疗初期血清谷丙转氨酶 (ALT)轻度上升 ,继续治疗后恢复 ,有3例在整个治疗过程中白细胞降至 3 .5× 1 0 9·L- 1 ,但均未影响疗程 ,所有病人肾功能均正常。结论 :雷公藤多苷能有效降低小儿肾性蛋白尿 ,明显改善原发性及继发性肾脏病的临床症状     

Dietary hypercholesterolemia aggravates contrast media-induced nephropathy

Background Contrast media administration can result in severe nephrotoxicity under pathological conditions such as diabetic nephropathy, congestive heart failure, dehydration, et al. The purpose of this study was to evaluate the effects of dietary hypercholesterolemia on contrast media-induced changes in renal function, blood flow, and histopathology.Methods Rats were fed either on a normal rodent diet ( group N) or a high-cholesterol supplemented diet ( group H; 4% cholesterol and 1% cholic acid) for 8 weeks. Half of the animals ( n = 6) from each diet group were then given a tail vein injection of 60% diatrizoate (6 ml/kg; group NC and group HC)and the other half were administered saline. Total serum cholesterol, triglyceride, serum creatinine,creatinine clearance rate, fractional excretion of sodium and potassium, and cortical nitric oxide production were determined one day following contrast media administration. Renal blood flow was determined by color Doppler flow imaging and pulsed-mode Doppler. Renal histopathology was observed by light microscopy.Results Total serum cholesterol and resistance indices of renal blood vessels increased significantly,while creatinine clearance rate and production of nitric oxide in the renal cortex decreased markedly in group HC and group H when compared to group N and group NC. The creatinine clearance rate decreased significantly in group HC compared to group H. Serum creatinine levels and fractional excretion of sodium and potassium in group HC were significantly higher than those in the other three groups. Severe tubular degeneration and necrosis, protein cast accumulation, and medullary congestion were found in group HC.Conclusion Hypercholesterolemia is a risk factor for contrast media-induced nephropathy.Hypercholesterolemia aggravates contrast media-induced nephrotoxicity through the reduced production of nitric oxide.     

家犬单剂量和多剂量口服阿昔莫司缓释制剂的药代动力学和生物等效性研究

目的研究阿昔莫司缓释片在家犬体内单剂量和多剂量的药代动力学和生物等效性。方法测定6只家犬单剂量和多剂量口服缓释片和普通胶囊后的血药浓度。结果阿昔莫司的药-时曲线符合非隔室模型。单剂量给药后，缓释片和普通胶囊的AUC分别为(158±30)和(147±37) μg·h·mL^-1；T_max分别为(4.3±0.8)和(2.6±1.3) h；C_max分别为(29±6)和(42±10) μg·mL^-1；T_1/2分别为(2.3±0.7)和(1.60±0.10) h；MRT分别为(6.0±0.8)和(3.9±0.7) h；F_r为(108±16)%。多剂量给药后，缓释片和普通胶囊的AUC分别为(209±23)和(195±26) μg·h·mL^-1；T_max分别为(6.3±0.8)和(3.4±1.5) h；C_max分别为(27±4)和(36±5) μg·mL^-1；Cmin分别为(2.2±1.0)和(0.20±0.20) μg·mL^-1；C_av分别为(8.7±1.0)和(8.1±1.1) μg·mL^-1；FI分别为(293±73)%和(448±91)%；F_r为(114±19)%。结论单剂量实验的双单侧检验结果表明：缓释片和普通胶囊生物等效；缓释片具有良好的缓释效果。多剂量实验结果表明：缓释片和普通胶囊生物等效；缓释片的波动系数优于普通胶囊。     

Peters异常PITX2及PAX6基因型表型分析

目的：分析中国人Peters异常(PA)患者的临床特征,研究Peters异常患者PITX2及PAX6基因变异情况。

方法：选取2016/2019年在常州市第二人民医院及第三人民医院眼科就诊的15例Peters异常患者,并收集详细的相关临床资料。征得患者及其家系成员的同意后抽血制备基因组DNA,用聚合酶链反应(PCR)对致病基因PITX2及PAX6的编码区及其临接内含子进行扩增后,直接测序筛查中国人群Peters异常患者PITX2及PAX6基因变异,异源双链-单链构象多态性分析(HA-SSCP)的方法对突变患者及其家系成员及80例正常对照进行验证; 分析比较国内已报道的Peters异常患者PITX2及PAX6基因突变并研究其相关表型。

结果：Peters异常患者15例PITX2基因突变筛查结果发现了1种新PITX2的突变c.296delG(P.R99fsx56),导致该基因的功能异常,分析突变患者临床特征,该患者右眼诊断为Axenfeld-Rieger综合征(ARS),左眼诊断为Peters异常。而家系成员中该患者父母及无亲缘关系的正常对照者均未发现相同突变,故此突变为新生突变。PAX6基因突变筛查未能发现突变。

结论：PA患者15例中检测到1个新PITX2基因突变,丰富了PITX2基因突变频谱,进一步明确了PA合并ARS眼病的临床特点,为该种少见眼病的临床诊断和发病原因提供了依据。     

慢性淋巴细胞白血病503例临床及实验室特征回顾性分析

目的 探讨慢性淋巴细胞白血病(CLL)患者的临床及主要实验室特征.方法 回顾性分析1998年10月至2015年2月收治的503例CLL患者的临床及实验室检查资料,应用χ2检验进行差异性检验,并利用Log-rank法检验各组患者生存率的差异.结果 503例CLL患者中位年龄58岁(26~86岁),男性335例,女性168例.初诊时临床分期以Binet A期为主,为204例(40.5%),其次为Binet B期和C期,分别为148例(30.1%)和151例(29.3%).初诊时108例(21.1%)患者存在贫血(血红蛋白<100 g/L);427例进行血清乳酸脱氢酶检测的患者中,有113例(26.5%)升高;344例进行CD38检测的患者中有100例(29.1%)表达阳性.330例具有完整荧光原位杂交(FISH)资料的患者中,156例(47.3%)伴13q缺失(13q-),为检出率最高的细胞遗传学异常;其次为IgH易位(22.4%),12号染色体三体(+12,21.2%)和17p缺失(17p-,14.5%).在230例进行免疫球蛋白重链可变区(IGHV)突变状态检测的患者中,165例(71.7%)IGHV为突变状态,表达V4-34基因的患者比例最高,占12.4%(28例).中位无进展生存(PFS)时间为89.0个月(95%CI 75.0~103.0个月),中位总生存(OS)时间为129.0个月(95%CI 106.9~151.1个月).结论与欧美国家的CLL患者相比,本组CLL患者发病年龄偏低,总体生存期较长,一定程度上反映了我国CLL患者的特点.