Antimicrobial Resistance Benchmark 2020 Antimicrobial Resistance Benchmark 2020
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Chapter 12 Antimicrobial Therapy Antibiotics
Chapter 12 Antimicrobial Therapy Topics: • Ideal drug - Antimicrobial Therapy - Selective Toxicity • Terminology - Survey of Antimicrobial Drug • Antibiotics - Microbial Drug Resistance - Drug and Host Interaction An ideal antimicrobic: Chemotherapy is the use of any chemical - soluble in body fluids, agent in the treatment of disease. - selectively toxic , - nonallergenic, A chemotherapeutic agent or drug is any - reasonable half life (maintained at a chemical agent used in medical practice. constant therapeutic concentration) An antibiotic agent is usually considered to - unlikely to elicit resistance, be a chemical substance made by a - has a long shelf life, microorganism that can inhibit the growth or - reasonably priced. kill microorganisms. There is no ideal antimicrobic An antimicrobic or antimicrobial agent is Selective Toxicity - Drugs that specifically target a chemical substance similar to an microbial processes, and not the human host’s. antibiotic, but may be synthetic. Antibiotics Spectrum of antibiotics and targets • Naturally occurring antimicrobials – Metabolic products of bacteria and fungi – Reduce competition for nutrients and space • Bacteria – Streptomyces, Bacillus, • Molds – Penicillium, Cephalosporium * * 1 The mechanism of action for different 5 General Mechanisms of Action for antimicrobial drug targets in bacterial cells Antibiotics - Inhibition of Cell Wall Synthesis - Disruption of Cell Membrane Function - Inhibition of Protein Synthesis - Inhibition of Nucleic Acid Synthesis - Anti-metabolic activity Antibiotics -
Efficacy of Amoxicillin and Amoxicillin/Clavulanic Acid in the Prevention of Infection and Dry Socket After Third Molar Extraction
Med Oral Patol Oral Cir Bucal. 2016 Jul 1;21 (4):e494-504. Amoxicillin in the prevention of infectious complications after tooth extraction Journal section: Oral Surgery doi:10.4317/medoral.21139 Publication Types: Review http://dx.doi.org/doi:10.4317/medoral.21139 Efficacy of amoxicillin and amoxicillin/clavulanic acid in the prevention of infection and dry socket after third molar extraction. A systematic review and meta-analysis María-Iciar Arteagoitia 1, Luis Barbier 2, Joseba Santamaría 3, Gorka Santamaría 4, Eva Ramos 5 1 MD, DDS, PhD, Associate Professor, Stomatology I Department, University of the Basque Country (UPV/EHU), BioCruces Health Research Institute, Spain; Consolidated research group (UPV/EHU IT821-13) 2 MD PhD, Chair Professor, Maxillofacial Surgery Department, BioCruces Health Research Institute, Cruces University Hos- pital, University of the Basque Country (UPV/EHU), Spain; Consolidated research group (UPV/EHU IT821-13) 3 MD, DDS, PhD, Professor and Chair, Maxillofacial Surgery Department, Bio Cruces Health Research Institute, Cruces University Hospital, University of the Basque Country (UPV/EHU), Bizkaia, Spain; Consolidated research group (UPV/EHU IT821-13) 4 DDS, PhD, Associate Professor, Stomatology I Department, University of the Basque Country (UPV/EHU), BioCruces Health Research Institute, Spain; Consolidated research group (UPV/EHU IT821-13) 5 PhD, Degree in Farmacy, BioCruces Health Research Institute, Cruces University Hospital. Spain Correspondence: Servicio Cirugía Maxilofacial Hospital Universitario de Cruces Plaza de Cruces s/n Arteagoitia MI, Barbier L, Santamaría J, Santamaría G, Ramos E. Ef- Barakaldo, Bizkaia, Spain ficacy of amoxicillin and amoxicillin/clavulanic acid in the prevention [email protected] of infection and dry socket after third molar extraction. -
New Insights Into the Effect of Amorolfine Nail Lacquer
Review article New insights into the effect of amorolfine nail lacquer C. Flagothier, C. Pie´ rard-Franchimont and G. E. Pie´ rard Department of Dermatopathology, University Hospital of Lie`ge, Lie`ge, Belgium Summary Despite improvements in antifungal strategies, the outcome of treating onychomycoses often remains uncertain. Several factors account for treatment failure, of which the pharmacokinetics and pharmacodynamics of the antifungal are of importance. The taxonomic nature and ungual location of the fungus cannot be neglected, besides the type of nail and its growth rate. In addition, the biological cycle of the fungus and the metabolic activity of the pathogen likely play a marked influence in drug response. The presence of natural antimicrobial peptides in the nail is also probably a key feature controlling the cure rates. There are many outstanding publications that cover the full spectrum of the field. The purpose of this review is to put in perspective some facets of activity of the topical treatment using amorolfine nail laquer. The antifungal activity of the drug is likely less pronounced in onychomycosis than that expected from conventional in vitro studies. However, the nail laquer formulation should reduce the propensity to form antifungal-resistant spores and limit the risk of reinfection. Key words: amorolfine, antifungal, fungus, onychomycosis, spore. Topical treatments are often considered to be less Introduction efficacious than current oral treatments. However, some During the last 2 decades, the efficacy of treating topical formulations may provide effects that cannot be onychomycoses has been considerably improved by achieved by other treatments. In discussing the treat- the introduction of new generations of potent antifun- ment of onychomycosis, it should not be forgotten that gals. -
Making the Right Move
MAKING THE RIGHT MOVE Investing and Creating Jobs in the Pittsburgh Region REAL PITTSBURGH REAL PEOPLE Looking Ahead: 2014 and Beyond Imagining a Bright Future for Our Region – and Making it Happen By Charles E. Bunch In many ways, the Pittsburgh region has com- Boomers. We’re seeing this on our job search engine within Imag- pleted the economic, environmental and qual- inePittsburgh.com, where the number of open jobs across the 10- ity-of-life transformation begun 30 years ago. county Pittsburgh region numbered around 25,000 at last count. We bottomed out in 1983, with an unemploy- ment rate over 18 percent. Throughout 2013, The Conference is addressing this opportunity in a variety of ways, in- WHEN YOU INVEST IN THE cluding through our robust talent attraction and retention initiative, COMMUNITY, THE RETURNS our jobless rate outperformed the state and the nation as a whole. We’re closing the year with the largest workforce which includes ImaginePittsburgh.com. We’re also working with ARE GUARANTEED. in regional history – about 100,000 more people employed than at our partners in workforce development to increase the supply of trained At Huntington, we know how important it is to give back to workers in the region. One such program, ShaleNET, has been such the community. After all, we do more than just work here – we industrial peak in 1979. live and raise our families here too. And after everything this a success that the federal government has increased its investment to community has done for us, we’re just happy to be able to We are enjoying the fruits of three decades of hard work by countless expand it to other states. -
Antibiotic Resistance: from the Bench to Patients
antibiotics Editorial Antibiotic Resistance: From the Bench to Patients Márió Gajdács 1,* and Fernando Albericio 2,3 1 Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Dóm tér 10., 6720 Szeged, Hungary 2 School of Chemistry, University of KwaZulu-Natal, Durban 4001, South Africa 3 Department of Organic Chemistry, University of Barcelona, CIBER-BBN, 08028 Barcelona, Spain * Correspondence: [email protected]; Tel.: +36-62-341-330 Received: 20 August 2019; Accepted: 26 August 2019; Published: 27 August 2019 The discovery and subsequent clinical introduction of antibiotics is one of the most important game-changers in the history of medicine [1]. These drugs have saved millions of lives from infections that would previously have been fatal, and later, they allowed for the introduction of surgical interventions, organ transplantation, care of premature infants, and cancer chemotherapy [2]. Nevertheless, the therapy of bacterial infections is becoming less and less straightforward due to the emergence of multidrug resistance (MDR) in these pathogens [3]. Direct consequences of antibiotic resistance include delays in the onset of the appropriate (effective) antimicrobial therapy, the need to use older, more toxic antibiotics (e.g., colistin) with a disadvantageous side-effect profile, longer hospital stays, and an increasing burden on the healthcare infrastructure; overall, a decrease in the quality-of-life (QoL) and an increase in the mortality rate of the affected patients [4,5]. To highlight the severity of the issue, several international declarations have been published to call governments around the globe to take action on antimicrobial resistance [6–9]. Since the 1980s, pharmaceutical companies have slowly turned away from antimicrobial research and towards the drug therapy of chronic non-communicable diseases [10,11]. -
Analysis of Mutations Leading to Para-Aminosalicylic Acid Resistance in Mycobacterium Tuberculosis
www.nature.com/scientificreports OPEN Analysis of mutations leading to para-aminosalicylic acid resistance in Mycobacterium tuberculosis Received: 9 April 2019 Bharati Pandey1, Sonam Grover2, Jagdeep Kaur1 & Abhinav Grover3 Accepted: 31 July 2019 Thymidylate synthase A (ThyA) is the key enzyme involved in the folate pathway in Mycobacterium Published: xx xx xxxx tuberculosis. Mutation of key residues of ThyA enzyme which are involved in interaction with substrate 2′-deoxyuridine-5′-monophosphate (dUMP), cofactor 5,10-methylenetetrahydrofolate (MTHF), and catalytic site have caused para-aminosalicylic acid (PAS) resistance in TB patients. Focusing on R127L, L143P, C146R, L172P, A182P, and V261G mutations, including wild-type, we performed long molecular dynamics (MD) simulations in explicit solvent to investigate the molecular principles underlying PAS resistance due to missense mutations. We found that these mutations lead to (i) extensive changes in the dUMP and MTHF binding sites, (ii) weak interaction of ThyA enzyme with dUMP and MTHF by inducing conformational changes in the structure, (iii) loss of the hydrogen bond and other atomic interactions and (iv) enhanced movement of protein atoms indicated by principal component analysis (PCA). In this study, MD simulations framework has provided considerable insight into mutation induced conformational changes in the ThyA enzyme of Mycobacterium. Antimicrobial resistance (AMR) threatens the efective treatment of tuberculosis (TB) caused by the bacteria Mycobacterium tuberculosis (Mtb) and has become a serious threat to global public health1. In 2017, there were reports of 5,58000 new TB cases with resistance to rifampicin (frst line drug), of which 82% have developed multidrug-resistant tuberculosis (MDR-TB)2. AMR has been reported to be one of the top health threats globally, so there is an urgent need to proactively address the problem by identifying new drug targets and understanding the drug resistance mechanism3,4. -
The Management of Common Skin Conditions in General Practice
Management of Common Skin Conditions In General Practice including the “red rash made easy” © Arroll, Fishman & Oakley, Department of General Practice and Primary Health Care University of Auckland, Tamaki Campus Reviewed by Hon A/Prof Amanda Oakley - 2019 http://www.dermnetnz.org Management of Common Skin Conditions In General Practice Contents Page Derm Map 3 Classic location: infants & children 4 Classic location: adults 5 Dermatology terminology 6 Common red rashes 7 Other common skin conditions 12 Common viral infections 14 Common bacterial infections 16 Common fungal infections 17 Arthropods 19 Eczema/dermatitis 20 Benign skin lesions 23 Skin cancers 26 Emergency dermatology 28 Clinical diagnosis of melanoma 31 Principles of diagnosis and treatment 32 Principles of treatment of eczema 33 Treatment sequence for psoriasis 34 Topical corticosteroids 35 Combination topical steroid + antimicrobial 36 Safety with topical corticosteroids 36 Emollients 37 Antipruritics 38 For further information, refer to: http://www.dermnetnz.org And http://www.derm-master.com 2 © Arroll, Fishman & Oakley, Department of General Practice and Primary Health Care, University of Auckland, Tamaki Campus. Management of Common Skin Conditions In General Practice DERM MAP Start Is the patient sick ? Yes Rash could be an infection or a drug eruption? No Insect Bites – Crop of grouped papules with a central blister or scab. Is the patient in pain or the rash Yes Infection: cellulitis / erysipelas, impetigo, boil is swelling, oozing or crusting? / folliculitis, herpes simplex / zoster. Urticaria – Smooth skin surface with weals that evolve in minutes to hours. No Is the rash in a classic location? Yes See our classic location chart . -
)&F1y3x PHARMACEUTICAL APPENDIX to THE
)&f1y3X PHARMACEUTICAL APPENDIX TO THE HARMONIZED TARIFF SCHEDULE )&f1y3X PHARMACEUTICAL APPENDIX TO THE TARIFF SCHEDULE 3 Table 1. This table enumerates products described by International Non-proprietary Names (INN) which shall be entered free of duty under general note 13 to the tariff schedule. The Chemical Abstracts Service (CAS) registry numbers also set forth in this table are included to assist in the identification of the products concerned. For purposes of the tariff schedule, any references to a product enumerated in this table includes such product by whatever name known. Product CAS No. Product CAS No. ABAMECTIN 65195-55-3 ACTODIGIN 36983-69-4 ABANOQUIL 90402-40-7 ADAFENOXATE 82168-26-1 ABCIXIMAB 143653-53-6 ADAMEXINE 54785-02-3 ABECARNIL 111841-85-1 ADAPALENE 106685-40-9 ABITESARTAN 137882-98-5 ADAPROLOL 101479-70-3 ABLUKAST 96566-25-5 ADATANSERIN 127266-56-2 ABUNIDAZOLE 91017-58-2 ADEFOVIR 106941-25-7 ACADESINE 2627-69-2 ADELMIDROL 1675-66-7 ACAMPROSATE 77337-76-9 ADEMETIONINE 17176-17-9 ACAPRAZINE 55485-20-6 ADENOSINE PHOSPHATE 61-19-8 ACARBOSE 56180-94-0 ADIBENDAN 100510-33-6 ACEBROCHOL 514-50-1 ADICILLIN 525-94-0 ACEBURIC ACID 26976-72-7 ADIMOLOL 78459-19-5 ACEBUTOLOL 37517-30-9 ADINAZOLAM 37115-32-5 ACECAINIDE 32795-44-1 ADIPHENINE 64-95-9 ACECARBROMAL 77-66-7 ADIPIODONE 606-17-7 ACECLIDINE 827-61-2 ADITEREN 56066-19-4 ACECLOFENAC 89796-99-6 ADITOPRIM 56066-63-8 ACEDAPSONE 77-46-3 ADOSOPINE 88124-26-9 ACEDIASULFONE SODIUM 127-60-6 ADOZELESIN 110314-48-2 ACEDOBEN 556-08-1 ADRAFINIL 63547-13-7 ACEFLURANOL 80595-73-9 ADRENALONE -
Summary of Product Characteristics
SUMMARY OF PRODUCT CHARACTERISTICS 1 1. NAME OF THE MEDICINAL PRODUCT Augmentin 125 mg/31.25 mg/5 ml powder for oral suspension Augmentin 250 mg/62.5 mg/5 ml powder for oral suspension 2. QUALITATIVE AND QUANTITATIVE COMPOSITION When reconstituted, every ml of oral suspension contains amoxicillin trihydrate equivalent to 25 mg amoxicillin and potassium clavulanate equivalent to 6.25 mg of clavulanic acid. Excipients with known effect Every ml of oral suspension contains 2.5 mg aspartame (E951). The flavouring in Augmentin contains maltodextrin (glucose) (see section 4.4). This medicine contains less than 1 mmol sodium (23 mg) per ml, that is to say essentially ‘sodium- free’. When reconstituted, every ml of oral suspension contains amoxicillin trihydrate equivalent to 50 mg amoxicillin and potassium clavulanate equivalent to 12.5 mg of clavulanic acid. Excipients with known effect Every ml of oral suspension contains 2.5 mg aspartame (E951). The flavouring in Augmentin contains maltodextrin (glucose) (see section 4.4). This medicine contains less than 1 mmol sodium (23 mg) per ml, that is to say essentially ‘sodium- free’. For the full list of excipients, see section 6.1. 3. PHARMACEUTICAL FORM Powder for oral suspension. Off-white powder. 4. CLINICAL PARTICULARS 4.1 Therapeutic indications Augmentin is indicated for the treatment of the following infections in adults and children (see sections 4.2, 4.4 and 5.1): • Acute bacterial sinusitis (adequately diagnosed) • Acute otitis media • Acute exacerbations of chronic bronchitis (adequately diagnosed) • Community acquired pneumonia • Cystitis • Pyelonephritis 2 • Skin and soft tissue infections in particular cellulitis, animal bites, severe dental abscess with spreading cellulitis • Bone and joint infections, in particular osteomyelitis. -
Updated WHO MDR-TB Treatment Guidelines and the Use of New Drugs in Children
Updated WHO MDR-TB treatment guidelines and the use of new drugs in children Annual meeting of the Childhood TB subgroup Liverpool, UK, 26 October 2016 Dr Malgosia Grzemska WHO/HQ, Global TB Programme Outline • Latest epidemiological data • Existing guidelines • 2016 update of the DR-TB treatment guidelines • New recommendations for treatment of RR-TB and MDR- TB in children • Delamanid guideline for use in children and adolescents • Research gaps • Conclusions The Global Burden of TB - 2015 Estimated number Estimated number of cases of deaths 10,4 million 1.8 million* All forms of TB • 1 million Children (10%) • 210,000 children (170,000 HIV negative and 40,000 HIV- positive) HIV-associated TB 1.2 million (11%) 390,000 Multidrug-resistant TB 480,000 190,000 +100,000 RR cases Childhood TB: MDRTB estimates Dodd P., Sismanidis B., Seddon J., Lancet Inf Dis, 21 June 2016: Global burden of drug-resistant tuberculosis in children: a mathematical modelling study • It is estimated that over 67 million children are infected with TB and therefore at risk of developing disease in the future; – 5 mln with INH resistance; 2 mln with MDR; 100,000 with XDR • Every year 25,000 children develop MDRTB and 1200 XDR TB MDR-TB in children • MDR-TB in children is mainly the result of transmission of a strain of M. tuberculosis that is MDR from an adult source case , and therefore often not suspected unless a history of contact with an adult pulmonary MDR-TB case is known. • Referral to a specialist is advised for treatment. -
Oral Antifungals Month/Year of Review: July 2015 Date of Last
© Copyright 2012 Oregon State University. All Rights Reserved Drug Use Research & Management Program Oregon State University, 500 Summer Street NE, E35 Salem, Oregon 97301-1079 Phone 503-947-5220 | Fax 503-947-1119 Class Update with New Drug Evaluation: Oral Antifungals Month/Year of Review: July 2015 Date of Last Review: March 2013 New Drug: isavuconazole (a.k.a. isavunconazonium sulfate) Brand Name (Manufacturer): Cresemba™ (Astellas Pharma US, Inc.) Current Status of PDL Class: See Appendix 1. Dossier Received: Yes1 Research Questions: Is there any new evidence of effectiveness or safety for oral antifungals since the last review that would change current PDL or prior authorization recommendations? Is there evidence of superior clinical cure rates or morbidity rates for invasive aspergillosis and invasive mucormycosis for isavuconazole over currently available oral antifungals? Is there evidence of superior safety or tolerability of isavuconazole over currently available oral antifungals? • Is there evidence of superior effectiveness or safety of isavuconazole for invasive aspergillosis and invasive mucormycosis in specific subpopulations? Conclusions: There is low level evidence that griseofulvin has lower mycological cure rates and higher relapse rates than terbinafine and itraconazole for adult 1 onychomycosis.2 There is high level evidence that terbinafine has more complete cure rates than itraconazole (55% vs. 26%) for adult onychomycosis caused by dermatophyte with similar discontinuation rates for both drugs.2 There is low -
Antibiotic Resistance in Plant-Pathogenic Bacteria
PY56CH08-Sundin ARI 23 May 2018 12:16 Annual Review of Phytopathology Antibiotic Resistance in Plant-Pathogenic Bacteria George W. Sundin1 and Nian Wang2 1Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824, USA; email: [email protected] 2Citrus Research and Education Center, Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, Florida 33850, USA Annu. Rev. Phytopathol. 2018. 56:8.1–8.20 Keywords The Annual Review of Phytopathology is online at kasugamycin, oxytetracycline, streptomycin, resistome phyto.annualreviews.org https://doi.org/10.1146/annurev-phyto-080417- Abstract 045946 Antibiotics have been used for the management of relatively few bacterial Copyright c 2018 by Annual Reviews. plant diseases and are largely restricted to high-value fruit crops because of Access provided by INSEAD on 06/01/18. For personal use only. All rights reserved the expense involved. Antibiotic resistance in plant-pathogenic bacteria has Annu. Rev. Phytopathol. 2018.56. Downloaded from www.annualreviews.org become a problem in pathosystems where these antibiotics have been used for many years. Where the genetic basis for resistance has been examined, antibiotic resistance in plant pathogens has most often evolved through the acquisition of a resistance determinant via horizontal gene transfer. For ex- ample, the strAB streptomycin-resistance genes occur in Erwinia amylovora, Pseudomonas syringae,andXanthomonas campestris, and these genes have pre- sumably been acquired from nonpathogenic epiphytic bacteria colocated on plant hosts under antibiotic selection. We currently lack knowledge of the effect of the microbiome of commensal organisms on the potential of plant pathogens to evolve antibiotic resistance.