革兰氏阴性细菌
In the nosocomial infection, 96 strains were detected and its main pathogens were Gram negative bacteria (46.88%).
医院感染中病原体检出96株，以革兰阴性菌为主，占46.88%。
Gram negative bacteria (e. g. Cyanobacteria) are decolorized, and may be counterstained with other dyes, such as safranin, carbol fuchsin, neutral red.
革兰氏阴性菌（如蓝细菌）则会褪色，但可以被其他染料复染，如碱性藏红、品红或中性红。
Desired to inactivate CD14 in order to further research its functional mechanisms in the condition of infection of gram negative bacteria and the relationship between CD14 and other receptors.
为了进一步研究CD14在革兰氏阴性菌感染中的作用机理以及与其它受体之间的相互关系，拟通过灭活CD14的研究方法以达此目的。
Severe gram negative bacteria infection is a common cause of disseminated intravascular coagulation (DIC) and multiple organ failure (MOF).
革兰阴性杆菌所致重症感染常引起弥散性血管内凝血和多器官功能衰竭。
Septic shock induced by gram negative bacteria is the leading cause of inpatient mortality.
革兰阴性菌感染所致的中毒性休克是住院病人死亡的主要原因。
Objective To analyze the antimicrobial resistance of most common Gram negative bacteria(GNB) isolated from sputum specimens in the respiratory intensive care units(RICU) .
目的分析呼吸重症监护室（RICU）痰标本分离的常见革兰阴性菌（GNB）的药物敏感性。
However, the ratios of Gram negative bacteria in other wards were lower than that found in the burn unit.
除阴沟肠杆菌和变形杆菌属外，其它革兰阴性菌的构成比均低于烧伤病原菌在全院病原菌中平均构成比。
The results showed that Bacillus natto could inhibit not only some kinds of gram positive and gram negative bacteria, but also some kinds of yeasts and moulds.
结果表明，纳豆菌具广谱抗菌作用，对细菌、酵母菌和霉菌皆有一定的拮抗作用。
Objective:To investigate the resistance of the gram negative bacteria.
目的：了解革兰氏阴性杆菌对多种广谱抗生素的耐药情况。
Carvacrol) Oil of oregano has the properties of anti-bacterial( Gram-positive bacteria and Gram negative bacteria), anti-coccidia and anti-oxidant activity.
添德牛至油（芹酚）活性乎重兰性兰性菌都活性，还抗真菌、球虫抗氧特性。
Gram negative bacteria were the main nosogenesis of nosocomial infection.
菌为医院感染的主要致病菌。
As for the second generation cephalosporins against Gram negative bacteria were not superior to those of the first generation ones;
革兰氏阴性杆菌对第二代头孢菌素敏感率并不优于第一代头孢菌素；
Methods Sputum culture was made in the patients with lower respiratory tract infection and 139 strains of gram negative bacteria were obtained.
方法 ：院内下呼吸道感染患者的痰和下呼吸道分泌物进行培养 ，共获得139株革兰氏阴性杆菌。
The most prevalent isolates of pathogens remained to be Gram negative bacteria (34/70), Gram positive bacteria (24/70) and fungi (12/70).
分离出的病原菌仍以革兰阴性菌为主（34／70），其次为革兰阳性菌（24／70）和真菌（12／70）。
Colistin is active against most strains of gram negative bacteria including P. aeruginosa, E. coli, K. pneumoniae, Aerobacter.
多粘菌素是最积极反对株革兰氏阴性菌包括绿脓杆菌，大肠杆菌，肺炎克雷伯菌 ， 产气。
Detection medium comprises: a substrate with a specific metabolic activity of a group of gram negative bacteria;
本发明涉及一种检测介质，其包含：特异于一革兰氏阴性菌菌群的代 谢活性的底物；
The resistance rate of Gram negative bacteria accounted for ipen was the lowest (25.81%). The sensitive rate of Vancomycin to Gram positive bacteria was 95.45% and Amphotericin B to fungi was 75.00%.
革兰氏阴性菌对亚胺培南耐药率最低（2 5.81% ） ，万古霉素对革兰氏阳性菌敏锐率为95.45 % ，两性霉素B对真菌敏锐率为75.0 0 %。
The thinking behind this is that it is coming from the gut because alcohol changes the permeability of the intestinal wall and gram-negative bacteria live there in their billions.
背后的想法是这是从肠道中来的，因为酒精改变肠道的透气性和革兰氏阴性细菌以数十亿计的数量存在于肠道壁。
Researchers have known for more than 20 years how so-called gram-negative bacteria like Escherichia coli degrade and recycle their RNA.
研究人员在20年前就已经发现了吉姆萨阴性细菌，例如大肠杆菌，可以降解并重新利用其核糖核酸。
A semisynthetic derivative of penicillin that is effective in the treatment of infections caused by certain susceptible strains of Gram-negative bacteria, such as Pseudomonas and Proteus.
盘尼西林的半合成衍生物，在治疗由革兰氏阴性细菌的某些过敏性菌系，如假单胞菌和变形杆菌引起的感染方面有疗效。
P. tuber-regium also showed significant antimicrobial effect on gram-positive bacteria without antimicrobial effect on gram-negative bacteria, yeast and mould.
虎奶菇菌丝体对革兰氏阳性细菌有较强的抑制作用，对革兰氏阴性细菌、酵母和霉菌没有抑制作用。
A compound, C12H 12N 2O 3, used to treat infections of the genital and urinary tracts caused by gram-negative bacteria.
一种化合物，C12H12N2O3，用于治疗由革兰氏阴性细菌引起的泌尿生殖系统感染。
Many systems for the display of either short peptides or native proteins on Gram-negative bacteria, Gram-positive bacteria and yeast have been developed.
革兰氏阴性细菌、革兰氏阳性细菌和酵母中已建立多个表面展示短肽和蛋白质的系统。
It recognizes lipopolysaccharide, a component of the outer membrane of Gram-negative bacteria.
它识别广泛存在革兰氏阴性菌细胞外膜上的脂多糖。
Previous researches on integron mainly focused on gram-negative bacteria, but in recent years, the integron type I was also found in gram-positive bacteria.
以往对整合子的研究主要集中在革兰阴性菌中，但是近年来在革兰阳性菌中也发现了I类整合子。
革兰氏阴性菌（Gram-negative bacteria）是一类在革兰氏染色实验中呈红色或粉红色的细菌，其分类依据为细胞壁结构和化学成分的差异。这类细菌的细胞壁较薄，但具有独特的外膜结构，外膜中含有脂多糖（LPS），可引发宿主强烈的免疫反应，例如发热或感染性休克。
从结构上看，革兰氏阴性菌的细胞壁由外膜、薄层肽聚糖和细胞质膜组成。外膜上的孔蛋白可限制某些抗生素的渗透，导致其天然耐药性增强。此外，外膜脂多糖是内毒素的主要成分，与败血症等严重感染密切相关。
常见的革兰氏阴性菌包括：
在临床治疗中，革兰氏阴性菌的多重耐药性问题尤为突出。世界卫生组织指出，碳青霉烯类耐药肠杆菌科细菌（CRE）和耐多药鲍曼不动杆菌被列为全球健康威胁。此类细菌常需联合使用β-内酰胺酶抑制剂或新型头孢菌素类药物治疗。研究显示，其耐药机制涉及外膜通透性改变、主动外排泵系统及抗生素水解酶的分泌。
权威医学期刊《柳叶刀》曾强调，革兰氏阴性菌引发的血流感染死亡率可达20%-40%，凸显了早期诊断和精准用药的重要性。美国疾病控制与预防中心（CDC）2023年报告也指出，这类细菌导致的医疗相关感染每年造成超过3.5万例死亡。
Gram-negative bacteria（革兰氏阴性菌）是细菌分类学中的一个重要类别，以下为详细解释：
1. 基本定义 指在革兰氏染色实验中呈阴性反应的细菌。该染色法由丹麦科学家Hans Christian Gram于1884年发明，通过结晶紫染色后，这类细菌因细胞壁结构特殊无法保留紫色染料，最终显现红色或粉红色。
2. 细胞壁结构特征 • 薄肽聚糖层：仅占细胞壁的5-10% • 外膜结构：含脂多糖（LPS），是内毒素的主要成分 • 周质空间：含多种水解酶和结合蛋白 这种特殊结构使其对某些抗生素（如青霉素）具有天然抗性。
3. 临床意义 •常见致病菌：包括大肠杆菌（E. coli）、沙门氏菌（Salmonella）、铜绿假单胞菌（Pseudomonas aeruginosa）等 •疾病关联：可引发尿路感染、肺炎、败血症等 •耐药性：普遍存在多重耐药现象，如产超广谱β-内酰胺酶（ESBL）菌株
4. 英文术语解析 • "Gram-negative"为形容词，需连字符连接 • "bacteria"是复数形式，单数为"bacterium" • 完整发音：/ɡræm ˈnɛɡətɪv bækˈtɪriə/
建议结合微生物学教材中的染色实验示意图，可更直观理解其结构特征。
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