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Propofol Attenuates Human Proximal Renal Tubular Epithelial Cell Injury Induced by Anoxia-Reoxygenation 异丙酚减轻缺氧-复氧诱导的人近端肾小管上皮细胞损伤
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-09-23 DOI: 10.1309/YVAD9JBUFGVGAAVP
Ya-ni Feng, T. Bai, Hong Ma, Jun-ke Wang
Background We undertook a study to determine whether propofol pretreatment may protect human proximal renal tubular epithelial (HK-2) cells against anoxia-reoxygenation injury and the role of p38 mitogen-activited protein kinase (p38MAPK).Methods HK-2 cells were randomly divided into 5 groups: a control group (Con); a group treated for 1 hour, cultured with with 300 μM CoCl2 normal medium for 24 hours, then stimulated with no serum media (group CoCl2); a group where the HK-2 cells were pretreated with 5μg/mL−1 propofol for 1 hour, then were treated as group (group Pro); a group where we pretreated CoCl2 the HK-2 cells with 10% intralipid 90 μL for 1 (group Int); hour, then treated as group CoCl2 and a group where we pretreated the HK-2 cells with propofol for 1 hour, 10 μmol/L−1SB203580 were (inhibitor of p38MAPK), and 300 μM CoCl2 added at the same time, then cultured with normal medium for 24 hours (group SB). Using MTT method and flow cytometry to detect the proliferation and apoptosis of HK-2 cells, the reverse transcriptase-polymerase chain reaction method was used to investigate the regulation of Bcl-2 and caspase-3 mRNA; the expression of p38MAPK was measured by Western blot.Results After pretreated with 5 μg/mL−1 propofol, HK-2 cell proliferation increased and apoptosis decreased ( P <0.05 or 0.01). Intralipid did not effect HK-2 cells, the expression of Bcl-2 gene was upregulated, and caspase-3 gene was down-regulated. Meanwhile, the expression of p38MAPK was upregulated after propofol pretreament. These regulations can be reversed by SB203580 ( P <0.05 or 0.01) with no difference between group Int and group CoCl2.Conclusion Pretreatment with 5μg/mL−1 propofol protected HK-2 cells against anoxia-reoxygenation injury at clinically relevant concentrations by regulating the expression of apoptosis related genes. P38MAPK plays an important role in propofol protective effect.
我们进行了一项研究,以确定异丙酚预处理是否可以保护人近端肾小管上皮(HK-2)细胞免受缺氧-再氧化损伤,以及p38丝裂原活化蛋白激酶(p38MAPK)的作用。方法HK-2细胞随机分为5组:对照组(Con);1组处理1小时,用300 μM CoCl2正常培养基培养24小时,再用无血清培养基刺激(CoCl2组);一组HK-2细胞经5μg/mL−1异丙酚预处理1 h后作为组(Pro组);一组用10%脂质内90 μL CoCl2预处理HK-2细胞1次(Int组);h,然后作为CoCl2组和用异丙酚预处理HK-2细胞1小时的组,10 μmol/L−1SB203580 (p38MAPK抑制剂),同时加入300 μM CoCl2,然后用正常培养基培养24小时(SB组)。采用MTT法和流式细胞术检测HK-2细胞的增殖和凋亡,采用逆转录-聚合酶链反应法研究Bcl-2和caspase-3 mRNA的调控;Western blot检测p38MAPK的表达。结果5 μg/mL−1异丙酚预处理后,HK-2细胞增殖增强,凋亡减少(P <0.05或0.01)。脂质内对HK-2细胞无影响,Bcl-2基因表达上调,caspase-3基因表达下调。同时,异丙酚预处理后p38MAPK表达上调。SB203580可逆转上述规律(P <0.05或0.01),而Int组与CoCl2组间无差异。结论5μg/mL−1异丙酚预处理在临床相关浓度下可调节凋亡相关基因的表达,保护HK-2细胞免受缺氧-再氧化损伤。P38MAPK在异丙酚保护作用中起重要作用。
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引用次数: 11
Head and Neck Pain, Syncopal Episode, Abnormal Cerebrospinal Fluid, and Hyponatremia in a Middle-Aged Woman 头颈疼痛、晕厥发作、脑脊液异常和低钠血症一例中年妇女
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-09-23 DOI: 10.1309/1L5W3YXVTT5L98W9
M. Pérez, L. Bush, S. Rodriguez
1. Important clinical information includes neck pain, the absence of fever or focal neurologic signs, and syncopal episode. The most striking laboratory findings include the abnormal chemical and cytologic analysis of the cerebrospinal fluid (CSF) sample (hypoglycorrhachia, proteinorrhachia, and pleocytosis) and mild hyperglycemia. 2. Hypoglycorrhachia: The CSF is normally a clear, colorless, and virtually acellular fluid that is actively produced by the choroid plexus and ependymal cells lining the central nervous system (CNS) ventricles and subarachnoidal space through a process of ultrafiltration of plasma. Glucose levels in the CSF are 60% to 70% those of the serum; therefore, comparison between both values is paramount in interpreting abnormal results. Increased CSF glucose (hyperglycorrhachia) may be seen in the context of hyperglycemia or be due to a traumatic tap. Conversely, decreased CSF glucose (hypoglycorrhachia) is commonly found in untreated bacterial, fungal, tuberculous, or amoebic meningitis, and rarely in some viral CNS infections (particulary those caused by mumps and lymphocytic choriomeningitis viruses). Other causes of hypoglycorrhachia include CNS sarcoidosis and neoplasms (primary or metastatic). Proteinorrhachia: The normal CSF protein level is about 1% of the serum protein level. Increased levels are seen with most infections involving the meninges and the CNS, but are Clinical History
1. 重要的临床信息包括颈部疼痛、无发热或局灶性神经体征和晕厥发作。最显著的实验室发现包括脑脊液(CSF)样本的异常化学和细胞学分析(低糖血症、蛋白血症和多细胞症)和轻度高血糖。2. 低糖下丘脑:脑脊液通常是一种透明、无色、几乎无细胞的液体,由沿中枢神经系统(CNS)脑室和蛛网膜下腔排列的脉络膜丛和室管膜细胞通过血浆超滤过程产生。脑脊液中的葡萄糖水平是血清的60% - 70%;因此,两个值之间的比较对于解释异常结果至关重要。脑脊液葡萄糖升高(高糖血症)可能在高血糖的情况下或由于创伤性穿刺而出现。相反,脑脊液葡萄糖降低(低糖下achia)常见于未经治疗的细菌性、真菌性、结核性或阿米巴性脑膜炎,而很少见于某些病毒性中枢神经系统感染(特别是由腮腺炎和淋巴细胞性脉络丛脑膜炎病毒引起的感染)。低糖下咽的其他原因包括中枢神经系统结节病和肿瘤(原发性或转移性)。蛋白血症:正常脑脊液蛋白水平约为血清蛋白水平的1%。在大多数涉及脑膜和中枢神经系统的感染中,可看到水平升高,但临床病史
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引用次数: 0
Effect of the Glycoprotein IIb/IIIa Inhibitor Tirofiban on Concentrations of Whole Blood Choline in Acute Coronary Syndromes 糖蛋白IIb/IIIa抑制剂替罗非班对急性冠脉综合征患者全血胆碱浓度的影响
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-09-23 DOI: 10.1309/0TQB1HAUX9JFU1B0
C. Storm, O. Danne, C. Lueders, U. Frei, M. Möckel
Background Whole blood choline (WBCHO) concentrations reflect phospholipase D activation pathways involved in coronary plaque vulnerability and platelet activation suppressed by glycoprotein IIb/IIIa receptor (GP IIb/IIIa) inhibitors, but it is unknown whether this treatment affects serial WBCHO levels.Methods We performed a retrospective matched pairs analysis of 32 patients with acute coronary syndrome treated either with standard therapy alone or with tirofiban plus standard therapy with serial measurements of WBCHO.Results The median level of choline decreased after 4 to 6 hours in the tirofiban group (21.2 μmol/L) while the median level in the group without tirofiban increased (29.3 μmol/L) and WBCHO was significantly lower in tirofiban treated patients ( P =0.039). Over time, the decrease of WBCHO was significant in the tirofiban group only ( P =0.006).Conclusions Our results suggest that in patients with acute coronary syndrome, tirofiban treatment is associated with a significant reduction of WBCHO concentration.
全血胆碱(WBCHO)浓度反映了糖蛋白IIb/IIIa受体(GP IIb/IIIa)抑制剂抑制的冠状动脉斑块易损和血小板活化的磷脂酶D激活途径,但这种治疗是否影响系列WBCHO水平尚不清楚。方法对32例急性冠状动脉综合征患者进行回顾性配对分析,这些患者要么单独接受标准治疗,要么接受替罗非班加标准治疗,并连续测量WBCHO。结果替罗非班治疗4 ~ 6 h后,替罗非班组患者胆碱中位水平下降(21.2 μmol/L),而未使用替罗非班组患者胆碱中位水平升高(29.3 μmol/L), WBCHO显著降低(P =0.039)。随着时间的推移,只有替罗非班组的WBCHO降低显著(P =0.006)。结论:我们的研究结果表明,在急性冠脉综合征患者中,替罗非班治疗与WBCHO浓度的显著降低有关。
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引用次数: 0
Insidious Onset of Visual Disturbances in a Healthy 56-Year-Old Man 一名56岁健康男性潜伏性视力障碍
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-09-23 DOI: 10.1309/QDNQCF9JP22WK96E
M. Sealfon, Seth Franklin
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引用次数: 2
Managing Workforce Health and Wellness 管理劳动力健康和福利
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-09-23 DOI: 10.1309/UQP7HTR8EATFQHVM
K. Ward, Leigh Ann McInnis
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引用次数: 0
Clinical Significance of Cytogenetics in Myelodysplastic Syndromes 骨髓增生异常综合征细胞遗传学的临床意义
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-09-23 DOI: 10.1309/EWKEBC48R8KYETR3
A. Haddad, J. Maciejewski, M. Kalaycio
The myelodysplastic syndromes (MDSs) are a heterogeneous group of diseases characterized by hemopoietic insufficiency associated with cytopenias due to dysfunctional hematopoietic stem cells. Myelodysplastic syndromes sometimes progress to acute myelogenous leukemia. The cytopenias caused by MDS lead to serious complications such as bleeding, infections, and symptomatic anemia. Cytogenetic abnormalities in MDS patients have an important role in categorizing these syndromes and are important in predicting prognosis and treatment response.
骨髓增生异常综合征(mds)是一组异质性疾病,其特征是由于造血干细胞功能失调导致的造血功能不全与细胞减少相关。骨髓增生异常综合征有时会发展为急性骨髓性白血病。MDS引起的细胞减少可导致严重的并发症,如出血、感染和症状性贫血。MDS患者的细胞遗传学异常对这些综合征的分类具有重要作用,对预测预后和治疗反应具有重要意义。
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引用次数: 1
Cytomegalovirus-Antigenemia-Positive and Polymerase-Chain-Reaction-Negative Transplant Patient 巨细胞病毒抗原阳性和聚合酶链反应阴性移植患者
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-09-23 DOI: 10.1309/NHKBJ8UFM8HKYJRX
Amanda Hernandez, Jacqueline Emmons, Daniel B. Wimmer, D. Payne
1. What is CMV, and why is CMV infection significant in transplant recipients? 2. What laboratory tests are used for the detection of active CMV infection? 3. What is pp65 antigenemia? 4. What is real-time PCR? 5. What are the advantages of using real-time PCR over other methods for detecting (eg, viral culture) and/or quantifying viral DNA? 6. How do you explain the patient’s test results? 7. What assay(s) would you use to definitively explain the test results?
1. 什么是巨细胞病毒?为什么巨细胞病毒感染在移植受者中很重要?2. 哪些实验室检查可用于检测活动性巨细胞病毒感染?3.什么是pp65抗原血症?4. 什么是实时PCR?5. 与其他检测(如病毒培养)和/或定量病毒DNA的方法相比,使用实时PCR的优势是什么?6. 你如何解释病人的检查结果?7. 你会用什么方法来明确地解释测试结果?
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引用次数: 4
Alcohol and Its Biomarkers: Clinical Aspects and Laboratory Determination 酒精及其生物标志物:临床和实验室测定
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-08-01 DOI: 10.1309/LMD9PAMUNKPA7DVN
G. Reisfield
Written by Amitava Dasgupta 300 pages. San Diego, Elsevier, 2015. $99.95. ISBN: 9780128003398.Alcohol is one of the most widely used and abused drugs in the United States and the world. According to the Substance Abuse and Mental Health Services Administration, 134 million Americans—more than half of the adult population— report being current drinkers, with nearly 18 million, or approximately 1 in every 12 adults, meeting the criteria for an alcohol use disorder.1 Nearly 90,000 alcohol-attributable deaths occur annually in the United States, making excessive alcohol use the fourth leading preventable cause of death.2 The annual economic costs of alcohol consumption were $223.5 billion in 2006, the last year for which there were comprehensive national estimates.3 As a result, Alcohol and Its …
作者:阿米塔瓦·达斯古普塔300页。圣地亚哥,爱思唯尔,2015。99.95美元。ISBN: 9780128003398。在美国和全世界,酒精是最广泛使用和滥用的药物之一。根据物质滥用和精神健康服务管理局的数据,1.34亿美国人——超过一半的成年人——报告说他们现在是饮酒者,其中近1800万人,或大约每12个成年人中就有1人符合酒精使用障碍的标准在美国,每年有近9万人死于酒精,使过度饮酒成为第四大可预防的死亡原因2006年,酒精消费的年度经济成本为2235亿美元,这是有全面国家估计的最后一年因此,酒精和它的…
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引用次数: 13
Heme Notes: A Pocket Atlas of Cell Morphology 血红素注释:细胞形态袖珍图谱
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-05-01 DOI: 10.1309/LMUUIWNKI9U2ZXBA
Bhavna Mehta
Written by Denise M. Harmening and Kathleen Finnegan, 218 pages. Philadelphia, PA: F. A. Davis Company. $28.95. ISBN: 978-0803619029I enjoyed reading this concise pocket atlas by Denise Harmening and Kathleen Finnegan. I find it to be a well-written book that any medical technologist or physician would love to have in her or his pocket for quick reference. The atlas covers practical theory of normal and abnormal peripheral blood and bone marrow cells. Each cell line is explained completely, with …
作者:丹尼斯·m·哈门宁和凯瑟琳·芬尼根,218页。费城,宾夕法尼亚州:F. A.戴维斯公司。28.95美元。我很喜欢读丹尼斯·哈门宁和凯瑟琳·芬尼根的这本简明袖珍地图集。我发现这是一本写得很好的书,任何医学技术专家或医生都会喜欢在她或他的口袋里快速参考。该图集涵盖了正常和异常外周血和骨髓细胞的实际理论。每一个细胞系都有完整的解释,有…
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引用次数: 1
Urinalysis and Body Fluids, 6th Edition 尿液分析和体液,第6版
4区 医学 Q4 MEDICAL LABORATORY TECHNOLOGY Pub Date : 2015-05-01 DOI: 10.1309/LMZE9PXB0A1OJLHD
K. Finnegan
Written by Susan King Strasinger, DA MTASCP), and Marjorie Schaub Di Lorenzo, MT(ASCP)SH, 336 pages. Philadelphia: F.A. Davis Company, 2014. $64.95. ISBN: 9780803639201.I find the textbook Urinalysis and Body Fluids to be well written and of excellent quality. The format of each chapter is clear, concise, and easy to follow. The strengths of each chapter are the understandable learning objectives, key terms, case studies, clinical situations depicted, and technical tips. The historical note with added interesting facts given is a nice touch. Highlighting the key …
作者:Susan King Strasinger, DA MTASCP)和Marjorie Schaub Di Lorenzo, MT(ASCP)SH, 336页。费城:F.A. Davis Company, 2014。64.95美元。ISBN: 9780803639201。我觉得《尿液分析与体液》这本教材写得很好,质量也很好。每章的格式清晰,简洁,易于理解。每章的优势在于可理解的学习目标、关键术语、案例研究、描述的临床情况和技术提示。历史笔记加上有趣的事实是一个很好的手法。突出重点…
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引用次数: 7
期刊
Labmedicine
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