全自动血培养系统检测730份需氧血培养结果分析

目的:评价全自动血培养系统BacT/Alert 120的临床应用情况.方法:回顾性分析BacT/Alert 120全自动血培养系统检测730例需氧血培养的阳性率,阳性检出时间,细菌种类以及假阳性、假阴性率.结果:730例需氧血培养分离到84株细菌,阳性率11.5%,最快阳性检出时间2小时,24小时内检出的阳性占66.7%,48小时内检出的阳性占86.9%,72小时内检出的阳性占97.6%.84株细菌分布于28个种属,假阳性率2.2%,未发现假阴性.结论:应用BacT/Alert 120全自动血培养系统提高了血培养的阳性率,缩短了培养时间,检出细菌种类多,减少污染机会,结果快速、准确.     

全自动血培养系统检测需氧血培养标本结果分析

目的评价BacT／Alert 120全自动血培养系统的临床应用情况。方法回顾性分析BacT／Alert 120全自动血培养系统检测1040例需氧血培养标本的阳性率、阳性检出时间、细菌种类以及假阳性、假阴性结果。结果1040例需氧血培养标本分离到98株细菌，阳性率9．42％，最快阳性检出时间2h，24h内检出的阳性占54．1％，48h内检出的阳性占79．6％，72h内检出的阳性占93．9％，假阳性率1．05％，未发现假阴性。结论应用BacT／Alert120全自动血培养系统提高了血培养的阳性率，缩短了培养时间，结果快速、准确。     

新型树脂BacT/Alert血液培养瓶抗菌药物吸附能力评估

目的 评估新型树脂BacT/Alert聚合物吸附珠血培养瓶(Bact/Alert APB需氧瓶,简称需氧瓶Bio-FA plus; Bact/Alert APB厌氧瓶,简称厌氧瓶Bio-FN plus)的抗菌药物吸附能力。方法 采用体外模拟实验比较新型树脂BacT/Alert聚合物吸附珠血培养瓶(需氧瓶Bio-FA plus;厌氧瓶Bio-FN plus)和不含抗菌药物中和物质的BacT/Alert标准需氧瓶(简称需氧瓶Bio-SA)的阳性检出率和检出时间。抽取标准需氧瓶Bio-SA、新型树脂需氧瓶Bio-FA plus和厌氧瓶Bio-FN plus随机分为对照组和实验组,实验组血培养瓶接种磷酸缓冲盐溶液(PBS)和一定浓度的标准菌株菌悬液;对照组接种PBS、一定浓度的标准菌株菌悬液和一定浓度的临床常用抗菌药物溶液(头孢哌酮/舒巴坦、万古霉素、头孢唑啉、哌拉西林/他唑巴坦、米卡芬净、亚胺培南),记录并比较各组血培养瓶5 d内的阳性检出率及检出时间。结果 实验组新型树脂需氧瓶Bio-FA plus的检出率为83.33%,厌氧瓶Bio-FN plus的检出率为100.00%,与标准需氧瓶B...     

全自动血液分析仪在检测血小板细菌污染中的应用

目的评价BacT/ALERT系统在检测血小板细菌污染中的应用。方法用BacT/ALERT系统对所制备的血小板悬液2164袋(含手工采去白细胞混合血小板及机器采集血小板)进行细菌污染检测,阳性标本作细菌鉴定。结果2164袋血小板悬液中细菌培养阳性25袋(1.16%),其中厌氧菌0.60%,需氧菌0.42%,厌氧菌与需氧菌均阳性0.14%。手工采混合血小板的阳性率为1.60%,厌氧菌占0.80%,需氧菌占0.58%,两者均阳性占0.22%。机采血小板的阳性率为0.38%,厌氧菌占0.25%,需氧菌占0.13%。细菌鉴定结果1袋为假阳性。结论BacT/Alert系统全自动血液分析仪具有快速、灵敏度较高以及假阳性率较低的优点。     

BacT／Alert240全自动血培养仪临床应用评价

目的 评价BacT/Alert 240全自动血培养仪的临床应用情况.方法 回顾性分析应用BacT/Alert 240全自动血培养仪检测的1898份血标本,对检出阳性的时间、细菌种类和阳性率进行了评估分析.结果 1898份血标本分离出255株病原微生物,阳性率为13.4%.最快阳性检出时间为2 h,24 h内检出的阳性数占722%,48 h检出的阳性数占92.6%.假阳性率为3.1%,假阴性率为0.3%.结论 应用BacT/Alert240全自动血培养仪提高了血培养的阳性率.缩短了阳性检出时间,检出细菌种类多,而且操作简便,结果 快速、准确.     

BacT/Alert 240全自动血培养仪的临床应用及评价

目的：评价全自动血培养仪BacT/Alert 240的临床应用情况，方法：回顾性分析BacT/Alert240全自动血培养系统检测7124份标本的阳性率，阳性检出时间，细菌种类以及假阳性率，假阴性率和污染率，结果：7124份血培养分离到804株微生物，其中细菌764株，阳性率11．5％，最快阳性检出时间2小时，24小时内检出的阳性占69．9％，48小时内占87．3％，72小时内占91．3％，804株细菌分布于24个属，假阳性率4．9％，假阴性率0．4％，污染率0．3％，结论：BacT/Alert 240全自动血培养仪提高了血培养的阳性率，缩短了阳性检出时间，检出细菌种类多尤其是苛养菌阳性率增加，减少污染机会，而且操作简便，结果快速，准确。     

铜绿假单胞菌全自动血液培养仪监测假阴性的实验研究

目的防止BacT/Alert全自动血培养仪漏检非发酵菌败血症血培养标本.方法采用定量接种铜绿假单胞菌在FAN需氧培养瓶中的方法,观察菌量及36℃预孵育时间对血培养仪反射光度检测的影响.结果BacT/Alert系统检出铜绿假单胞菌阳性培养瓶受预孵育时间和菌量影响,经36℃预孵育4小时,菌量在1200cfu/ml以上的培养瓶,不被系统检出;经36℃预孵育8小时,菌量为340cfu/ml的测试瓶,系统于7.4小时后检出.结论菌量较高的体液培养瓶和经孵育延迟进入系统监测的血培养瓶,上瓶前应盲日转种培养,避免培养监测结果的假阴性.     

铜绿假单胞菌全自动血液培养仪监测假阴性的实验研究

目的：防止BacT/Alert全自动血培养仪漏检非发酵菌败血症血培养标本。方法：采用定量接种铜绿假单胞菌在FAN需氧培养瓶中的方法,观察菌量及36℃预孵育时间对血培养仪反射光度检测的影响。结果：BacT/Alert系统检出铜绿假单胞菌阳性培养瓶受预孵育时间和菌量影响,经36℃预孵育4小时,菌量在1200cfu/ml以上的培养瓶,不被系统检出;经36℃预孵育8小时,菌量为340cfu/ml的测试瓶,系统于7．4小时后检出。结论：菌量较高的体液培养瓶和经孵育延迟进入系统为监测的血培养瓶,上瓶前应盲目转种培养,避免培养监测结果的假阴性。     

mini VITAL全自动血培养仪假阳性/假阴性结果分析

目的 评价mini VITAL全自动血培养仪在临床应用中的假阳性／假阴性情况。方法 采用回顾性分析，对mini VITAL全自动血培养仪在检测3834份临床标本中出现的假阳性／假阴性率及导致假阴性结果的细菌种类与分布进行评估分析。结果 mini VITAL系统假阳性率和假阴性率分别为0．68％和0．70％，所有致假阴性菌种中，以真菌的比率最高，占62．07％，其次为非发酵菌、草绿色链球菌、凝固酶阴性葡萄球菌、革兰阳性杆菌和厌氧菌，分别为10．34％、10．34％、6．90％、6．90％和3．45％。结论 对mini VITAL系统血培养仪报告的阴性结果必须同时进行细菌和真菌的传代培养。     

厌氧培养和需氧培养在血培养中的应用研究

目的研究厌氧培养和需氧培养在血培养中分离菌阳性率的差异。方法采用全自动血液培养仪(BacT/ALERT 3D)进行需氧和厌氧培养并分离菌株。厌氧培养分离的菌株均做耐氧试验。结果 2010年2～5月591份标本共检出81株细菌,阳性率13.71%(81/591),其中需氧培养检测出的细菌为58份,阳性检出率为9.81%(58/591),厌氧培养检测出74株细菌,阳性检出率为12.52%;细菌检出最早时间为2h。81株细菌中24h内检出58株(71.60%),24～48h检出17株(20.99%),48h以后检出6株(7.40%)。结论对于血(体)液标本应同时做需氧和厌氧培养,以提高临床细菌的阳性检出率。     

二甲双胍联合西格列汀治疗老年糖尿病的meta分析

目的 通过系统评价的方式评估二甲双胍联合西格列汀治疗老年2型糖尿病(T2DM)的疗效和安全性。方法 通过检索中文数据库如万方、中国知网、维普数据库以及外文数据库如PubMed、Cochrane library等各个数据库,自建库以来至2023年2月1日期间所发表的二甲双胍联合西格列汀治疗老年T2DM的所有RCT研究,对纳入文献进行偏倚风险评价及 Meta 分析。结果 最终纳入10项研究,共927例患者;试验组均使用二甲双胍联合西格列汀,对照组均使用二甲双胍治疗。纳入的10项研究中,有5项研究进行了安全性评价即不良反应情况;发现二甲双胍联合西格列汀治疗具有良好的安全性。Meta分析的研究结果表明,试验组的空腹血糖、餐后血糖、糖化血红蛋白明显低于对照组。结论 西格列汀联合二甲双胍适用于老年糖尿病的治疗,降糖效果好,安全性高。     

The Rho Variant-Du

A simplified test for the D^u factor employing a reagent containing 25 per cent serum albumin, the "stick" technic to introduce cells and forceful cen-trifugation has been given an extensive trial in a routine blood bank operation. A routine preliminary test with anti-D gave 5,051 negative reactions among 26,753 bloods tested. The D^u tube test was then performed on the former with an anti-CDE reagent in parallel with the indirect antiglobulin test done with anti-D. All bloods positive by one or both tests were tested further for D antigens by an anti-D elution technic; they were also tested for Rh-Hr factors.
Among the 126 bloods positive by elution for the D^ufactor, 122 and 126 were positive respectively by the antiglobulin and the D^u tube tests. The two tests were in agreement on all eight of the type ccD^uee bloods found in the study. The D^utube test, as done with anti-CDE, gave no false negative reactions. It is, thus, concluded that bloods which are negative with this test will be type ccddee and can be labeled "Rh negative tested for D^u. Serological factors which might account for sensitivity of the D^u tube test's being the equal of the antiglobulin test are considered, as are the probabilities of the existence of D variants so weak that they could not be detected by either test.     

陇中损伤胶囊联合骨科机器人辅助下骶髂关节螺钉置入治疗骨盆后环骨折的疗效研究

目的：观察陇中损伤胶囊联合骨科机器人辅助下骶髂关节螺钉置入治疗骨盆后环骨折的疗效研究。方法：对 2021 年1 月至 2022 年 5 月采用外科治疗的 60例骨盆后环骨折病例进行回顾性分析,选取骨盆后环骨折患者60例,随机分为治疗组和对照组。对照组接受骨科机器人辅助下骶髂关节螺钉置入治疗,治疗组在该基础上,配合陇中损伤胶囊口服,1周作为一个疗程,2个疗程后从疼痛、肿胀程度、患者骨折愈合时间与住院时间4个指标评价临床疗效。结果：治疗组骨折愈合时间与住院时间均优于对照组(P<0.05);治疗组肿胀程度低于对照组(P<0.05);治疗组VAS评分低于对照(P<0.05)。结论：陇中损伤胶囊联合骨科机器人辅助下骶髂关节螺钉置入治疗骨盆后环骨折有很好的临床疗效,值得临床推广应用。     

Comparative Absorption of Ferri-Haemoglobin-59Fe/Ferro-Haemoglobin-59Fe and 59Fe3+/59Fe2+ in Humans with Normal and Depleted Iron Stores*

Abstract. The intestinal ⁵⁹Fe absorption from ferri- and ferro-haemogIobin-⁵⁹Fe and ⁵⁹Fe³⁺ and ⁵⁹Fe⁺ was calculated from whole body-⁵⁹Fe-retention measurements in subjects with normal and depleted iron stores. A ferri-haemoglobin-⁵⁹Fe/ferro-haemoglobin-⁵⁹Fe absorption ratio of 1.03 ±0.11 was observed for the absorption of ferri-haemoglobin-⁵⁹Fe (8.6± 0.77%) and ferro-haemogIobin-⁵⁹Fe (8.7±0.94%) in persons with normal iron stores. Depletion of iron stores caused a slight but significant higher rise of ferri-haemoglobin-⁵⁹Fe absorption (22 ± 1.7%) than the increase of ferro-haemoglobin-⁵⁹Fe absorption (18 ±0.9%) so that the absorption ratio was 1.24±0.073.—This remarkable iron valence independence of haemoglobin iron absorption is in considerable contrast to the well-established valence dependence of inorganic iron absorption which favours ferrous iron absorption especially with rising iron doses. The ⁵⁹Fe³⁺/⁵⁹Fe²⁺ absorption ratio for a diagnostic 0.56 mg Fe dose increased from 0.43 in subjects with normal iron stores to 0.74 in persons with depleted iron stores, whereas this absorption ratio was augmented only from 0.21 to 0.28 for the therapeutic 50 mg Fe-dose.—The different influence of iron valence on iron absorption from inorganic and haemoglobin iron supports other evidence for the existence of two separate mechanisms for ferrous iron and haem iron absorption in humans.     

Erythrocyte Li+/Na+ and Na+/H+ exchange, cardiac anatomy and function in insulin-dependent diabetics

It has been proposed that an increased activity of cell membrane Na+/H+ exchange, mirrored by increased erythrocyte Li+/Na+ exchange, may facilitate cell hypertrophy and hyperplasia. Patients with insulin-dependent diabetes mellitus may develop a specific cardiomyopathy with systolic and diastolic abnormalities and increased thickness of the left ventricle. Therefore, we have investigated the relationships between erythrocyte Li+/Na+ and Na+/H+ exchange and echocardiographic parameters in 31 male insulin-dependent diabetics (aged 17-68), in good metabolic control. Three had untreated mild hypertension. In all patients the urinary albumin excretion rate was less than 200 micrograms min-1. Ten patients had a Li+/Na+ countertransport higher than 0.37 mmol l-1 cell h-1, the upper normal limit for our laboratory (0.49 +/- 0.10, mean +/- SD). In comparison with the patients with normal countertransport, they had increased interventricular septum thickness and relative wall thickness (h/r). End diastolic volume and cardiac index were reduced while blood pressure and urinary albumin excretion rate were similar. In the whole study group, interventricular septum thickness was significantly correlated to Li+/Na+ exchange (r = 0.61, P less than 0.001) and Na+/H+ exchange (r = 0.35, P less than 0.05), independently of the effect of age and blood pressure. Posterior wall thickness was correlated to Li+/Na+ exchange (r = 0.38, P less than 0.05) and h/r to Li+/Na+ exchange (r = 0.41, P less than 0.05) and to Na+/H+ exchange (r = 0.44, P less than 0.05). Li+/Na+ exchange was negatively correlated to cardiac index (r = -0.37, P less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)     

Further Observations on the Blood Factors RhA, RhB, RhC and RhD

The findings in 18 cases of individuals with Rh_o-positive blood who had antibodies in their serum resembling anti-Rh_o in specificity are briefly summarized. One interesting finding is the relatively high frequency of such individuals among Negroes, especially with the blood type Rh^d_o and Rh^abd_o. The significance of these findings is discussed.     

癌症患者未成年子女心理行为问题的研究进展

癌症患者未成年子女通常会存在各种生理、心理和行为问题,如焦虑、抑郁、社交恐惧、躯体疼痛、失眠和暴力倾向等,但我国研究者并未重视这一群体。本文对癌症患者未成年子女心理行为问题现状和相关影响因素进行综述,并介绍了国内外促进癌症患者未成年子女心理健康的干预措施,旨在为国内研究癌症患者未成年子女的心理行为问题的原因,并开发符合我国文化背景的理论模型和干预措施提供参考。