Penicillins activate autolysins extracted from both Escherichia coli and Klebsiella pneumoniae envelopes.

نویسندگان

  • R Fontana
  • G Satta
  • C A Romanzi
چکیده

Ampicillin at a 50-mug/ml concentration effects a doubling of the autolysis rate of cell envelopes isolated from Klebsiella pneumoniae Mir A12. This antibiotic increases also by two- to threefold the depolymerizing activity of both K. pneumoniae and Escherichia coli crude extracts on a labeled peptidoglycan-lipoprotein complex. Several other penicillins also activate autolysins.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Prevalence of TEM and SHV Genes among Extended-Spectrum Beta-Lactamases Producing Escherichia Coli and Klebsiella Pneumoniae

Objective(s) Production of extended-spectrum beta-lactamases (ESBLs) by enteric bacteria continues to be a major problem in hospitals and community. ESBLs producing bacteria cause many serious infections including urinary tract infections, peritonitis, cholangitis and intra-abdominal abscess. The aim of this study was to determine the prevalence of ESBLs producing Escherichia coli and Klebsiel...

متن کامل

Different features of Escherichia coli and Klebsiella pneumoniae in children and adults

Background: This study aimed to describe the association between age groups and antimicrobial susceptibility patterns, also integron presence in Escherichia coli and Klebsiella pneumoniae  isolates from Tabriz, Iran. Materials and methods: 140 isolates of E. coli and 150 isolates of K. pneumoniae, both comprising the same number of children and adult isolates were examined for susceptibil...

متن کامل

THE FREQUENCY OF TEM, SHV, AND OXA GENES AMONG EXTENDED-SPECTRUM BETA-LACTAMASE PRODUCING KLEBSIELLA PNEUMONIAE AND ESCHERICHIA COLI OBTAINED FROM KIDNEY TRANSPLANT PATIENTS

Background & Aims: Considering the importance of drug resistance among pathogenic bacteria and their treatment problems, this study aimed to determine the prevalence of extended-spectrum beta-lactamases (ESBLs), including TEM, SHV, and OXA genes among the isolated Escherichia coli and Klebsiella pneumoniae obtained from urine specimens of kidney transplant patients. Materials & Methods: The ba...

متن کامل

INVESTIGATION OF SHV, TEM, CTX-M GENES FREQUENCY IN ESCHERICHIA COLI AND KLEBSIELLA PNEUMONIAE ISOLATES IN CHILDREN WITH UTI IN RASHT CITY

Abstract Introduction and objective: Urinary tract infections (UTIs) is one of common infections in children which rapidly acquiring more resistance to antimicrobial drugs in the worldwide.  The aim of this study was to evaluate the frequency of SHV, TEM and CTX-M genes in Escherichia Coli and Klebsiella Pneumoniae strains isolated from UTI in children in 17 Shahrivar hospital from Rasht city....

متن کامل

بررسی فراوانی و الگوی مقاومت آنتی‌بیوتیکی اشریشیا‌کلی و کلبسیلا پنومونیه جدا شده از عفونت ادراری در بیماران سرپایی مراجعه کننده به بیمارستان امیرالمومنین علی (ع) شهرستان گراش در سال 1396: یک گزارش کوتاه

Background and Objectives: Urinary tract infection (UTI) is the presence of pathogens in the urinary tract. Escherichia coli and Klebsiella pneumoniae are the most common bacteria responsible for UTI. Due to the variety of antibiotic resistance mechanisms, treatment of these infections has been difficult, therefore, selection of appropriate antibiotic has an effective role in controlling and im...

متن کامل

ذخیره در منابع من

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Antimicrobial agents and chemotherapy

دوره 12 6  شماره 

صفحات  -

تاریخ انتشار 1977