Gram-negative bacteria

[ Objective] Streptococcus sanguis ( Ss) is one of the most popular bacteria in the oral cavity, which associates with various diseases. Porphyromonas gingivalis ( Pg) is one kind of anaerobic gram-negative bacteria associated with the chronic periodontitis.

[目的]血链球菌（Ss）是一种与许多疾病相关的口腔中最常见的细菌，牙龈卟啉单胞菌（Pg）是一种与慢性牙周疾病相关的革兰氏阴性的厌氧菌。

Lipopolysaccharides ( LPS) is an integral part of the outer membrane of all Gram-negative bacteria ( GNB) and is considered to be the primary trigger of pathophysiologic events in sepsis.

脂多糖（LPS）是革兰阴性菌（GNB）细胞壁的主要成份，是GNB所致脓毒症多种病理生理反应的第一触发因子。

Study on molecular transmission mechanisms of CTX-M-3 producing Gram-negative bacteria

革兰阴性菌产CTX-M-3型超广谱β内酰胺酶分子传播机制的研究

Both bone cements against Gram-positive bacteria were significantly decreased adhesion ( p0.05).

两种骨水泥对革兰氏阳性菌的黏附均显著降低（p0.05）。

Results In those pathogen there 52 % is Gram-positive bacteria, there 48 % is Gram-negative bacteria.

结果致病菌中革兰氏阳性菌占52%,革兰氏阴性菌占48%.

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%.

The previous gram-negative bacteria were Haemophilus parainfluenzae, Escherichia coli and Klebsiella pneumonia.

病原以细菌检出为主，其中G-菌占优势，前三种G-菌分别为副流感嗜血杆菌、大肠埃希菌、肺炎克雷伯杆菌。

The causative organisms included both gram positive and gram negative bacteria.

引起发炎的细菌包括革兰氐阴性及革兰氐阳性菌种.

Detection of 16S rRNA Methylases Gene in Gram-negative Bacteria

革兰阴性菌中16S RRNA甲基化酶基因的检测

CodY is an important global transcription regulator in most gram-positive bacteria, and regulates the expression of many virulence genes, thus affecting the pathogen pathogenicity.

CodY是多种革兰氏阳性菌一种重要的全局性转录调控因子，可调控大量毒力基因的表达，从而影响病原菌致病性。

Antimicrobial activities of cefepime aga in st gram-negative bacteria in vitro

头孢吡肟等抗生素对革兰阴性杆菌体外药物敏感实验结果分析

Septic shock and multiple organs dysfunction syndrome ( MODS) are the two fundamental reasons which lead to death in Gram-negative bacteria infection.

Gˉ杆菌感染过程中，其产生的内毒素引起的感染性休克和多器官功能障碍综合症（multiple organs dysfunction syndrome，MODS）被认为是感染及内毒素血症患者死亡的根本原因。

Trough levels of 6.68 ± 3.37 mg/ ml after 1 g doses of meropenem are above the MIC90s for gram-negative bacteria and for the most important gram-positive bacteria.

美洛培南1g给药后其谷浓度为6.68±3.37mg／ml，高于大多数革兰阴性菌及重要革兰阳性菌的MIC90s。

Legionellae are aerobic, non-spore formingrod-shaped , typically flagellated, gram-negative bacteria.

军团菌群是一种好氧的 、 非 孢子繁殖的、杆状的 、 一般带有绒毛的格兰氏阴性菌.

Lipopolysaccharide ( LPS), which also called endotoxin, is the main component of gram-negative bacteria cell wall, and also is the important medium which can cause inflammation of testis cells when orchitis occurs., Intraperitoneal injection can build the orchitis model in rats.

脂多糖（lipopolysaccharide，LPS）又称内毒素，是革兰氏阴性菌细胞壁的主要成分，也是感染发生时诱导睾丸细胞发生炎症反应的重要物质，腹腔注射LPS可建立大鼠睾丸炎模型。

The antibacterial tests demonstrated that the as-prepared silvered microspheres showed activity against Gram-negative bacteria.

抗菌实验结果表明,所制备的载银微球具有抗革兰氏阴性菌的活性.

OBJECTIVE To study the Gram-negative bacteria of urinary tract infections ( UTI ) in children.

目的研究引起婴幼儿尿路感染的革兰阴性菌的菌种及其药物敏感性.

O-antigen in an important component of outer membrane of Gram-negative bacteria.

抗原是革兰阴性菌外膜的重要组分.

Now ( MRSA ) and a new Gram-negative bacteria bacterium , which is called multidrug-resistant Acinetobacter baumann i.

另外一种是新发现的革兰氏阴性细菌, 叫多重耐药性鲍曼不动杆菌.

Gram-negative bacteria were the main pathogen of adult with NP and able to resistance to most of the antibiotics, Gram-positive bacteria were the main pathogen of children with NP and highly resistant to penicillin and erythromycin, but extremely sensitive to vancomycin. 3.

革兰阴性菌是成人NP主要病原菌，且对大多数常用抗菌素有较高的耐药性：革兰阳性菌是儿童NP主要致病菌，且对青霉素、红霉素高度耐药，对万古霉素高度敏感。

Multiple studies have reported increasing levels of resistance among gram-negative bacteria.

多种研究表明 格兰 氏阴性菌的耐药水平不断增加.

Some pathogenic factors may cause airway inflammation, such as lipopolysaccharide ( LPS), which is the main component of the cell wall of Gram-negative bacteria.

其中以革兰阴性菌细胞壁的主要成分脂多糖（lipopolysaccharide，LPS）为主要致病因素，不仅引起肺部炎症反应，还可使原有肺部疾病发展和加重。

METHODS A simple method for defining Gram-negative bacteria was used to differentiate B. parapertussis from bronchitis sputum culture on blood plates. And then the biological characteristics as well as the DNA confirmation ( G+ C mol%) were assayed.

方法借助支气管炎痰培养在血平板上的菌落产生褐色素，将其用革兰阴性菌简易定属方法鉴定，进一步检查生物学特征，测定菌株的DNA碱基组成（G+c Mol%），最后确认。

Objective To study the antimicrobial resistance and genotypes of extended-spectrum β-( lactamases)( ESBLs)-producing Gram-negative bacteria isolated from pediatrics in Shenyang and preliminarily investigate the molecular mechanisms of their multiple antibiotic resistance dissemination process.

目的研究沈阳地区儿科产超广谱β-内酰胺酶（extended-spectrum-βlactamases，ESBLs）革兰阴性菌的耐药性及ESBLs基因型分布，初步探讨其多重耐药性传播的分子机制。

The strains producing the extended spectrum beta-lactamases ( ESBLs) of Gram-negative bacteria were often detected.

革兰阴性菌中，产超广谱β-内酰胺酶（ESBLs）菌株较常见。

Lys-Pe showed great inhibition effect on Gram-positive bacteria, especially staphylococcus aureus.

Lys-Pe对革兰氏阳性菌具有不同程度的抑制作用，其中金黄色葡萄球菌对Lys-Pe最敏感。

The most abundant and diverse isolates were members of Gram-positive bacteria, particularly the genus Arthrobacter as a dominant group in culturable populations.

丰度和多样性最高的是革兰氏阳性菌群，其中节杆菌属（Arthrobacter）为天山冻土中的优势细菌类群。

Lipopolysaccharides are a major component of the cell walls of Gram-negative bacteria.

脂多糖是 革兰 氏阴性菌细胞壁的重要组成成分.

The drug resistance of Gram-positive bacteria was also very serious, staphylococci in the MRS between 52.9%-100%, one case of vancomycin-resistant strains was discovered in Enterococcus faecalis.

革兰氏阳性菌的耐药情况也较严重，在葡萄球菌中MRS在52.9%~100%；在粪肠球菌中发现了1例耐万古霉素菌株。

Integron, a genetic element of gene capture and expression in Gram-negative bacteria, has been showed to play an important role in acquired antibiotic resistance of bacteria.

近来的研究显示，革兰阴性菌中一种基因捕获和表达的遗传单位&整合子（integron）在细菌获得抗生素抗性机制中起了重要作用。