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  • 革蘭氏陰性細菌

  • 例句

  • In the nosocomial infection, 96 strains were detected and its main pathogens were Gram negative bacteria (46.88%).

    醫院感染中病原體檢出96株,以革蘭陰性菌為主,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.

    革蘭氏陰性菌(如藍細菌)則會褪色,但可以被其他染料複染,如堿性藏紅、品紅或中性紅。

  • 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.

    為了進一步研究CD14在革蘭氏陰性菌感染中的作用機理以及與其它受體之間的相互關系,拟通過滅活CD14的研究方法以達此目的。

  • Severe gram negative bacteria infection is a common cause of disseminated intravascular coagulation (DIC) and multiple organ failure (MOF).

    革蘭陰性杆菌所緻重症感染常引起彌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.

    革蘭陰性菌感染所緻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) .

    目的分析呼吸重症監護室(RICU)痰标本分離的常見革蘭陰性菌(GNB)的藥物敏感性。

  • However, the ratios of Gram negative bacteria in other wards were lower than that found in the burn unit.

    除陰溝腸杆菌和變形杆菌屬外,其它革蘭陰性菌的構成比均低于燒傷病原菌在全院病原菌中平均構成比。

  • 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.

    結果表明,納豆菌具廣譜抗菌作用,對細菌、酵母菌和黴菌皆有一定的拮抗作用。

  • Objective:To investigate the resistance of the gram negative bacteria.

    目的:了解革蘭氏陰性杆菌對多種廣譜抗生素的耐藥情況。

  • 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)活性乎重蘭性蘭性菌都活性,還抗真菌、球蟲抗氧特性。

  • Gram negative bacteria were the main nosogenesis of nosocomial infection.

    菌為醫院感染的主要緻病菌。

  • As for the second generation cephalosporins against Gram negative bacteria were not superior to those of the first generation ones;

    革蘭氏陰性杆菌對第二代頭孢菌素敏感率并不優于第一代頭孢菌素;

  • 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進行培養 ,共獲得139株革蘭氏陰性杆菌。

  • The most prevalent isolates of pathogens remained to be Gram negative bacteria (34/70), Gram positive bacteria (24/70) and fungi (12/70).

    分離出的病原菌仍以革蘭陰性菌為主(34/70),其次為革蘭陽性菌(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.

    多粘菌素是最積極反對株革蘭氏陰性菌包括綠膿杆菌,大腸杆菌,肺炎克雷伯菌 , 産氣。

  • Detection medium comprises: a substrate with a specific metabolic activity of a group of gram negative bacteria;

    本發明涉及一種檢測介質,其包含:特異于一革蘭氏陰性菌菌群的代 謝活性的底物;

  • 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%.

    革蘭氏陰性菌對亞胺培南耐藥率最低(2 5.81% ) ,萬古黴素對革蘭氏陽性菌敏銳率為95.45 % ,兩性黴素B對真菌敏銳率為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.

    背後的想法是這是從腸道中來的,因為酒精改變腸道的透氣性和革蘭氏陰性細菌以數十億計的數量存在于腸道壁。

  • Researchers have known for more than 20 years how so-called gram-negative bacteria like Escherichia coli degrade and recycle their RNA.

    研究人員在20年前就已經發現了吉姆薩陰性細菌,例如大腸杆菌,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.

    盤尼西林的半合成衍生物,在治療由革蘭氏陰性細菌的某些過敏性菌系,如假單胞菌和變形杆菌引起的感染方面有療效。

  • P. tuber-regium also showed significant antimicrobial effect on gram-positive bacteria without antimicrobial effect on gram-negative bacteria, yeast and mould.

    虎奶菇菌絲體對革蘭氏陽性細菌有較強的抑制作用,對革蘭氏陰性細菌、酵母和黴菌沒有抑制作用。

  • A compound, C12H 12N 2O 3, used to treat infections of the genital and urinary tracts caused by gram-negative bacteria.

    一種化合物,C12H12N2O3,用于治療由革蘭氏陰性細菌引起的泌尿生殖系統感染。

  • Many systems for the display of either short peptides or native proteins on Gram-negative bacteria, Gram-positive bacteria and yeast have been developed.

    革蘭氏陰性細菌、革蘭氏陽性細菌和酵母中已建立多個表面展示短肽和蛋白質的系統。

  • It recognizes lipopolysaccharide, a component of the outer membrane of Gram-negative bacteria.

    它識别廣泛存在革蘭氏陰性菌細胞外膜上的脂多糖。

  • 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.

    以往對整合子的研究主要集中在革蘭陰性菌中,但是近年來在革蘭陽性菌中也發現了I類整合子。

  • 專業解析

    革蘭氏陰性菌(Gram-negative bacteria)是一類在革蘭氏染色實驗中呈紅色或粉紅色的細菌,其分類依據為細胞壁結構和化學成分的差異。這類細菌的細胞壁較薄,但具有獨特的外膜結構,外膜中含有脂多糖(LPS),可引發宿主強烈的免疫反應,例如發熱或感染性休克。

    從結構上看,革蘭氏陰性菌的細胞壁由外膜、薄層肽聚糖和細胞質膜組成。外膜上的孔蛋白可限制某些抗生素的滲透,導緻其天然耐藥性增強。此外,外膜脂多糖是内毒素的主要成分,與敗血症等嚴重感染密切相關。

    常見的革蘭氏陰性菌包括:

    在臨床治療中,革蘭氏陰性菌的多重耐藥性問題尤為突出。世界衛生組織指出,碳青黴烯類耐藥腸杆菌科細菌(CRE)和耐多藥鮑曼不動杆菌被列為全球健康威脅。此類細菌常需聯合使用β-内酰胺酶抑制劑或新型頭孢菌素類藥物治療。研究顯示,其耐藥機制涉及外膜通透性改變、主動外排泵系統及抗生素水解酶的分泌。

    權威醫學期刊《柳葉刀》曾強調,革蘭氏陰性菌引發的血流感染死亡率可達20%-40%,凸顯了早期診斷和精準用藥的重要性。美國疾病控制與預防中心(CDC)2023年報告也指出,這類細菌導緻的醫療相關感染每年造成超過3.5萬例死亡。

    網絡擴展資料

    Gram-negative bacteria(革蘭氏陰性菌)是細菌分類學中的一個重要類别,以下為詳細解釋:

    1. 基本定義 指在革蘭氏染色實驗中呈陰性反應的細菌。該染色法由丹麥科學家Hans Christian Gram于1884年發明,通過結晶紫染色後,這類細菌因細胞壁結構特殊無法保留紫色染料,最終顯現紅色或粉紅色。

    2. 細胞壁結構特征 • 薄肽聚糖層:僅占細胞壁的5-10% • 外膜結構:含脂多糖(LPS),是内毒素的主要成分 • 周質空間:含多種水解酶和結合蛋白 這種特殊結構使其對某些抗生素(如青黴素)具有天然抗性。

    3. 臨床意義 •常見緻病菌:包括大腸杆菌(E. coli)、沙門氏菌(Salmonella)、銅綠假單胞菌(Pseudomonas aeruginosa)等 •疾病關聯:可引發尿路感染、肺炎、敗血症等 •耐藥性:普遍存在多重耐藥現象,如産超廣譜β-内酰胺酶(ESBL)菌株

    4. 英文術語解析 • "Gram-negative"為形容詞,需連字符連接 • "bacteria"是複數形式,單數為"bacterium" • 完整發音:/ɡræm ˈnɛɡətɪv bækˈtɪriə/

    建議結合微生物學教材中的染色實驗示意圖,可更直觀理解其結構特征。

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