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Latest & greatest articles for antibiotics
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Antibiotics also referred to as antibacterial are a type of medicine that prevents the growth of bacteria. As such they are used to treat infections caused by bacteria. They kill or prevents bacteria from spreading.
Antibiotics are vital in modern day medicine; they are among the most frequently prescribed drug. There are over a 100 types of antibiotics, the main types and most commonly prescribed are penicillin, cephalosporin, macrolides, fluoroquinolone and tetracycline. They tend to be classified by mechanism of action. So, those that target the bacterial cell wall (penicillins and cephalosporins) or the cell membrane (polymyxins), or interfere with essential bacterial enzymes (rifamycins, lipiarmycins, quinolones, and sulfonamides) have bactericidal activities. Antibiotics such as macrolides, lincosamides and tetracyclines inhibit protein synthesis.
Antibiotics can all be defined by their specificity. “Narrow-spectrum” antibiotics target specific types of bacteria, for instance gram-negative (-ve) or gram-positive (+ve), whereas broad-spectrum antibiotics affect a wide range of bacteria.
Antibiotics are increasingly suffering from antibiotic resistance caused by bacterial mutations meaning the bacteria evolves to not be sensitive to the specific antibiotics being used.
Clinical trials are important to the development and understanding of antibiotics and their side effects. Although they are deemed safe, over use of the drug can kill good bacteria and lead to antibiotic resistance. This halts the ability of bacteria and microorganisms to resist the effects of the antibiotic. Clinical trials and research allow scientists and medical professionals to study the effects and develop new antibiotics.
Pattern of Antimicrobial Resistance among Bacterial Isolates from Urogenital Clinical Specimens: A Descriptive Study from the Buea Health District, Cameroon Antimicrobial resistance has become a global concern and is particularly affecting developing countries where infectious diseases and poverty are endemic. The effectiveness of currently available antimicrobials is decreasing as a result of increasing resistant strains among clinical isolates.The aim of this study was to determine (...) the resistance pattern of bacterial isolates from different clinical urogenital specimens at different hospitals in the Buea Health District, Cameroon.A retrospective study was conducted in three hospital laboratories in the Buea Health District, Cameroon, from June to August 2017. All culture and antimicrobial susceptibility test results of patients who presented at each of the laboratories for urine, vaginal swab or urethral swab cultures from January 2012 to December 2016 were included in the study. Data
Checking procalcitonin suitability for prognosis and antimicrobial therapy monitoring in burn patients Due to greater infection susceptibility, sepsis is the main cause of death in burn patients. Quick diagnosis and patient stratification, early and appropriated antimicrobial therapy, and focus control are crucial for patients' survival. On the other hand, superfluous extension of therapy is associated with adverse events and arousal of microbial resistance. The use of biomarkers, necessarily (...) coupled with close clinical examination, may predict outcomes, stratifying patients who need more intensive care, and monitor the efficacy of antimicrobial therapy, allowing faster de-escalation or stop, reducing the development of resistance and possibly the financial burden, without increasing mortality. The aim of this work is to check the suitability of procalcitonin (PCT) to fulfill these goals in a large sample of septic burn patients.One hundred and one patients, with 15% or more of total body
Inhaled anti-pseudomonal antibiotics for long-term therapy in cystic fibrosis. Inhaled antibiotics are commonly used to treat persistent airway infection with Pseudomonas aeruginosa that contributes to lung damage in people with cystic fibrosis. Current guidelines recommend inhaled tobramycin for individuals with cystic fibrosis and persistent Pseudomonas aeruginosa infection who are aged six years or older. The aim is to reduce bacterial load in the lungs so as to reduce inflammation (...) and deterioration of lung function. This is an update of a previously published review.To evaluate the effects long-term inhaled antibiotic therapy in people with cystic fibrosis on clinical outcomes (lung function, frequency of exacerbations and nutrition), quality of life and adverse events (including drug sensitivity reactions and survival).We searched the Cochrane Cystic Fibrosis Trials Register, compiled from electronic database searches and handsearching of journals and conference abstract books. We also
Synthesis, characterization, computational studies and biological activity evaluation of Cu, Fe, Co and Zn complexes with 2-butanone thiosemicarbazone and 1,10-phenanthroline ligands as anticancer and antibacterial agents Mixed-ligand metal (II) (M=Cu, Fe, Co and Zn) complexes containing 2-butanone thiosemicarbazone and 1, 10-phenanthroline have been synthesized and characterized by melting point, FT-IR, 1H-NMR, UV-spectrophotometry and molar conductance measurements. All the complexes were (...) and tetracycline. The ligand was tested for its potential anticancer activity against MDA-MB-231 cell line using MTT assay. Antibacterial activity of the complexes was tested against Staphylococcus aureus and Escherichia coli using the disc diffusion method. Cu (II) complex showed maximum activity against the MDA cells and also exhibited mild antibacterial activity against S. aureus.
Antibiotics and activity spaces: protocol of an exploratory study of behaviour, marginalisation and knowledge diffusion Antimicrobial resistance (AMR) is a global health priority. Leading UK and global strategy papers to fight AMR recognise its social and behavioural dimensions, but current policy responses to improve the popular use of antimicrobials (eg, antibiotics) are limited to education and awareness-raising campaigns. In response to conceptual, methodological and empirical weaknesses (...) of this approach, we study people's antibiotic-related health behaviour through three research questions.RQ1: What are the manifestations and determinants of problematic antibiotic use in patients' healthcare-seeking pathways?RQ2: Will people's exposure to antibiotic awareness activities entail changed behaviours that diffuse or dissipate within a network of competing healthcare practices?RQ3: Which proxy indicators facilitate the detection of problematic antibiotic behaviours across and within communities?We
Oral versus inhaled antibiotics for bronchiectasis. Bronchiectasis is a chronic inflammatory disease characterised by a recurrent cycle of respiratory bacterial infections associated with cough, sputum production and impaired quality of life. Antibiotics are the main therapeutic option for managing bronchiectasis exacerbations. Evidence suggests that inhaled antibiotics may be associated with more effective eradication of infective organisms and a lower risk of developing antibiotic resistance (...) when compared with orally administered antibiotics. However, it is currently unclear whether antibiotics are more effective when administered orally or by inhalation.To determine the comparative efficacy and safety of oral versus inhaled antibiotics in the treatment of adults and children with bronchiectasis.We identified studies through searches of the Cochrane Airways Group's Specialised Register (CAGR), which is maintained by the Information Specialist for the group. The Register contains trial
The antimicrobial activity of probiotic bacteria Escherichia coli isolated from different natural sources against hemorrhagic E. coli O157:H7 Diarrheal diseases have been seen in all geographical areas throughout the world. Therefore, considering treatment, could be deemed a necessary action.The aim of this study was to determine the antimicrobial effect of probiotic bacterial strains isolated from different natural sources against 2 pathotypes of pathogenic E. coli.This cross-sectional study (...) of Martyr Chamran University of Ahvaz was carried out from December 2013 to July 2014. A total of 13 probiotic colonies isolated from 20 samples of traditional dairy products including (yogurt, cheese, milk) and 20 samples of vegetables including carrots and cabbages (red and white) of which 5 isolates were selected to evaluate the antimicrobial effect against 2 Escherichia coli pathotypes, randomly. Antimicrobial effect was evaluated using two methods: disk diffusion and well diffusion tests
Antibiotic resistance patterns of urinary tract pathogens in Turkish children Knowledge of local antimicrobial resistance patterns is essential for evidence- based empirical antibiotic prescribing. We aimed to investigate the distribution and changes in causative agents of urinary tract infections in children and the resistance rates, and to recommend the most appropriate antibiotics.In this retrospective study, we evaluated causative agents and antimicrobial resistance in urine isolates from
Antibiotics at the time of removal of central venous catheter to reduce morbidity and mortality in newborn infants. Late-onset sepsis is associated with increased rates of mortality and morbidity in newborn infants, in addition to poorer long-term developmental outcomes and increased length of stay and hospital costs. Central line-associated blood stream infection (CLABSI) is the most common cause of late-onset sepsis in hospitalised infants, and prevention of CLABSI is a key objective (...) in neonatal care. Increased frequency of CLABSI around the time of removal of central venous catheters (CVCs) has been reported, and use of antibiotics at the time of removal may reduce the incidence and impact of late-onset sepsis in vulnerable newborn infants.To determine the efficacy and safety of giving antibiotics at the time of removal of a central venous catheter (CVC) for reduction of morbidity and mortality in newborn infants, in particular effects on late-onset sepsis.We used the standard search
Epidemiology of antibiotic-resistant wound infections from six countries in Africa Little is known about the antimicrobial susceptibility of common bacteria responsible for wound infections from many countries in sub-Saharan Africa.We performed a retrospective review of microbial isolates collected based on clinical suspicion of wound infection between 2004 and 2016 from Mercy Ships, a non-governmental organisation operating a single mobile surgical unit in Benin, Congo, Liberia, Madagascar (...) surveillance should be a priority and local antimicrobial resistance profiles should be used to guide empiric antibiotic selection.
Procalcitonin Testing to Guide Antibiotic Therapy in Acute Upper and Lower Respiratory Tract Infections. Is the use of procalcitonin for guiding antibiotic decisions in patients with acute upper and lower respiratory tract infections associated with improved clinical outcomes compared with usual care?Among patients with varying types and severity of acute respiratory infection, using procalcitonin to guide decisions about antibiotics is associated with lower rates of antibiotic exposure (...) , antibiotic-related adverse effects, and mortality.
injections performed were 3.4 per patient. The most common organisms isolated were coagulase-negative Staphylococci in 6/14 (42.8%), Staphylococcus aureus in 5/14 (35.7%), Streptococcus sp in 2/14 (14.2%) and Bacillus sp in 1/14 (7.14%). In addition to vancomycin, resistance to multiple drugs (three or more groups of antibiotics) was found in all 14 cases. Antimicrobial susceptibility results showed susceptibility to amikacin in 7/14 (50.0%), gatifloxacin in 6/14 (42.8%), moxifloxacin in 3/13 (23.0 (...) %), cefazoline in 5/14 (35.7%), cefuroxime in 3/14 (21.4%), ciprofloxacin in 2/14 (14.2%) and linezolid in 5/5 (100%). The mean duration of follow-up was 30.7 weeks (6 weeks-90 weeks). At last follow-up, visual acuity (VA) of 20/200 or better was recorded in 7/14 (50%) and VA < 5/200 occurred in 7/14 (50%).Antimicrobial susceptibility testing may help in selection of suitable antimicrobial agents for repeat intravitreal injection. Inspite of retreatment with intravitreal antibiotics, these patients generally
Precision antimicrobial therapeutics: the path of least resistance? The emergence of drug-resistant pathogens has led to a decline in the efficacy of traditional antimicrobial therapy. The rise in resistance has been driven by widespread use, and in some cases misuse, of antibacterial agents in treating a variety of infections. A growing body of research has begun to elucidate the harmful effects of broad-spectrum antibiotic therapy on the beneficial host microbiota. To combat these threats (...) with Crohn's disease (CD), in mouse models. While not without its challenges, antibiotic-sparing therapeutic approaches hold great promise in a variety of disease systems, including UTI, CD, otitis media (OM), and others. In this perspective we highlight the benefits, progress, and roadblocks to the development of precision antimicrobial therapeutics.
Helicobacter pylori resistance to antibiotics at the An-Najah National University Hospital: a cross-sectional study. Bacterial resistance to antibiotics is considered the most important determinant of treatment failure. Monitoring the evolution of antimicrobial resistance to common antibiotics is therefore of special importance for clinicians. The frequency of resistance to antibiotics in Helicobacter pylori isolates is increasing. The aim of this study was to determine the pattern of H pylori (...) %). Metronidazole and clarithromycin were the least effective drugs, with resistance rates of 100% and 47%, respectively.H pylori isolates from the Palestinian patients included in this study were highly resistant to the traditional first-line antibiotics clarithromycin and metronidazole. However, fluoroquinolones and amoxicillin are still effective antimicrobial choices. This could be the result of the unjustified wide use of antibiotics in the Palestinian community and the use of clarithromycin-based therapy
Antibiotics for treating gonorrhoea in pregnancy. Gonorrhoea is a sexually transmitted infection that is caused by Neisseria gonorrhoeae, and is a major public health challenge today. N gonorrhoeae can be transmitted from the mother's genital tract to the newborn during birth, and can cause gonococcal ophthalmia neonatorum as well as systemic neonatal infections. It can also cause endometritis and pelvic sepsis in the mother. This review updates and replaces an earlier Cochrane Review (...) on antibiotics for treating this infectious condition.To assess the clinical effectiveness and harms of antibiotics for treating gonorrhoea in pregnant women.We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (31 May 2017), LILACS database (1982 to April 5, 2017), the WHO International Clinical Trials Registry Platform (ICTRP; April 5, 2017), ClinicalTrials.gov (April 5, 2017), the ISRCTN Registry (April 5, 2017), and Epistemonikos (April 5, 2017). We also searched reference lists
[Generation of Antibiotic Tolerant Bacterial Persisters in Immunocompromized Patients with Hematologic and Malignant Diseases: A New Problem of Health-Care Associated Infections]. Antibiotic tolerance (AT) represents one of the causes of the phenomenon of antibiotic resistance that allows escape of non-replicating metabolically inert microorganisms (persisters) from any antibiotics attack because molecular targets of antibiotics are lacking thereby creating the potential for chronic (...) infections.Determine the heterogeneity of the strains of opportunistic pathogens E. coli and P. aeruginosa isolates from children with hematologic malignancies containing bacterial persisters that cause the AT phenomenon.Children with hematological malignancies were divided into 2 groups according to the intensity of antibiotic treatment of infectious complications. Ciprofloxacin-induced persisters were quantitatively determined in the biological materials obtained from sick children.Within the clinical isolates
Probiotics to Prevent Antibiotic Associated Diarrhea in Children Emergency Medicine > Journal Club > Archive > November 2017 Toggle navigation November 2017 Probiotics to Prevent Antibiotic Associated Diarrhea in Children Vignette You are working in the SLCH ED. An 18-month-old unvaccinated patient has right ear pain and fever for 4 days, along with a runny nose and irritability. You look in her ear and see a bulging red eardrum. You are a superior clinician so you pull out your insufflator (...) and find that the eardrum has limited mobility, especially compared to the other side. with a diagnosis of acute otitis media in hand, you decide to prescribe high-dose amoxicillin for the child, based on the . However, as you start to explain this to the parents, they sound very hesitant because they have had other children who "always" get diarrhea when given antibiotics. They also recently had an elderly relative who was ill due to C. diff and they are scared to give their daughter antibiotics