LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 15

Search options

  1. Article ; Online: Mold Infections in Solid Organ Transplant Recipients.

    Lemonovich, Tracy L

    Infectious disease clinics of North America

    2018  Volume 32, Issue 3, Page(s) 687–701

    Abstract: Mold infections carry a substantial clinical and economic burden in solid organ transplant (SOT) recipients with a high overall mortality of near 30%. The most important pathogens include Aspergillus, the Zygomycetes, Fusarium, Scedosporium/ ... ...

    Abstract Mold infections carry a substantial clinical and economic burden in solid organ transplant (SOT) recipients with a high overall mortality of near 30%. The most important pathogens include Aspergillus, the Zygomycetes, Fusarium, Scedosporium/Pseudallescheria, and the dematiaceous (dark) molds. Risk factors for the infections vary by transplant type but include degree of immune suppression and loss of skin or mucosal integrity. Correct diagnosis usually requires histopathology and/or culture. Management often requires a multidisciplinary team approach with combined antifungal and surgical therapies. This article reviews the epidemiology, risk factors, microbiology, diagnostic, and treatment approach to mold infections in SOT recipients.
    MeSH term(s) Antifungal Agents/therapeutic use ; Fungi ; Humans ; Mycoses/drug therapy ; Mycoses/microbiology ; Organ Transplantation/adverse effects ; Risk Factors ; Transplant Recipients
    Chemical Substances Antifungal Agents
    Language English
    Publishing date 2018-08-25
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1077676-x
    ISSN 1557-9824 ; 0891-5520
    ISSN (online) 1557-9824
    ISSN 0891-5520
    DOI 10.1016/j.idc.2018.04.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Gepotidacin: a novel, oral, 'first-in-class' triazaacenaphthylene antibiotic for the treatment of uncomplicated urinary tract infections and urogenital gonorrhoea.

    Watkins, Richard R / Thapaliya, Dipendra / Lemonovich, Tracy L / Bonomo, Robert A

    The Journal of antimicrobial chemotherapy

    2023  Volume 78, Issue 5, Page(s) 1137–1142

    Abstract: The ongoing spread of antimicrobial resistance has made the treatment of uncomplicated urinary tract infections (UTIs) and urogenital gonorrhoea increasingly difficult. New oral treatment options are urgently needed. Gepotidacin (previously GSK2140944) ... ...

    Abstract The ongoing spread of antimicrobial resistance has made the treatment of uncomplicated urinary tract infections (UTIs) and urogenital gonorrhoea increasingly difficult. New oral treatment options are urgently needed. Gepotidacin (previously GSK2140944) is a novel, bactericidal, oral, 'first-in-class' triazaacenaphthylene antibiotic that inhibits bacterial DNA replication by blocking two essential topoisomerase enzymes. Mutations in both enzymes would likely be necessary for resistance to occur, thus raising hopes that the drug will be able to maintain long-term effectiveness. Data from Phase II clinical trials of gepotidacin in UTIs and urogenital gonorrhoea appear promising, and Phase III trials are underway. In this review we summarize the development of gepotidacin and discuss its potential role in clinical practice. If approved, gepotidacin will be the first new oral antibiotic for UTIs in more than 20 years.
    MeSH term(s) Humans ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/therapeutic use ; Gonorrhea/drug therapy ; Gonorrhea/microbiology ; Acenaphthenes/therapeutic use ; Acenaphthenes/pharmacology ; Urinary Tract Infections/drug therapy
    Chemical Substances Anti-Bacterial Agents ; gepotidacin (DVF0PR037D) ; Acenaphthenes
    Language English
    Publishing date 2023-03-23
    Publishing country England
    Document type Review ; Journal Article
    ZDB-ID 191709-2
    ISSN 1460-2091 ; 0305-7453
    ISSN (online) 1460-2091
    ISSN 0305-7453
    DOI 10.1093/jac/dkad060
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Interactions between anti-infective agents and immunosuppressants-Guidelines from the American Society of Transplantation Infectious Diseases Community of Practice.

    Sparkes, Tracy / Lemonovich, Tracy L

    Clinical transplantation

    2019  Volume 33, Issue 9, Page(s) e13510

    Abstract: These updated guidelines from the Infectious Diseases Community of Practice of the American Society of Transplantation provide an update on potential drug-drug interactions between anti-infectives and immunosuppressants, which are most notable with ... ...

    Abstract These updated guidelines from the Infectious Diseases Community of Practice of the American Society of Transplantation provide an update on potential drug-drug interactions between anti-infectives and immunosuppressants, which are most notable with calcineurin and mTOR inhibitors. Drug-drug interactions may occur through pharmacokinetic mechanisms leading to altered drug concentrations of either the anti-infective or immunosuppressive drug, or by pharmacodynamic interactions increasing or decreasing the efficacy or toxicity of the medications. Many of the significant pharmacokinetic interactions occur through inhibition or induction of the cytochrome 3A4 system by anti-infective agents leading to increased or decreased immunosuppressive agent levels, respectively. The membrane transporter P-glycoprotein is also often involved in drug interactions. Since the last iteration of these guidelines, multiple new hepatitis C virus direct-acting antivirals have become available for use in SOT recipients. Of these agents, some are substrates of cytochrome and drug transporter systems, while others inhibit these systems and may affect immunosuppressive agents. Due to the high risk for drug-drug interactions in the solid organ transplant population, practitioners must be aware of potential interactions and be vigilant in monitoring and adjusting drug dosing when appropriate.
    MeSH term(s) Anti-Infective Agents/therapeutic use ; Communicable Diseases/diagnosis ; Communicable Diseases/drug therapy ; Communicable Diseases/etiology ; Drug Interactions ; Humans ; Immunosuppressive Agents/therapeutic use ; Organ Transplantation/adverse effects ; Practice Guidelines as Topic/standards ; Societies, Medical
    Chemical Substances Anti-Infective Agents ; Immunosuppressive Agents
    Language English
    Publishing date 2019-04-23
    Publishing country Denmark
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 639001-8
    ISSN 1399-0012 ; 0902-0063
    ISSN (online) 1399-0012
    ISSN 0902-0063
    DOI 10.1111/ctr.13510
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Evaluation of infections in the lung transplant patient.

    Watkins, Richard R / Lemonovich, Tracy L

    Current opinion in infectious diseases

    2012  Volume 25, Issue 2, Page(s) 193–198

    Abstract: Purpose of review: Infections in lung transplant recipients (LTRs) are a serious complication that is associated with high mortality. Early and accurate diagnosis is critical in the management of these infections in order to achieve improved outcomes. ... ...

    Abstract Purpose of review: Infections in lung transplant recipients (LTRs) are a serious complication that is associated with high mortality. Early and accurate diagnosis is critical in the management of these infections in order to achieve improved outcomes. This review focuses on studies published in the last 2 years related to the evaluation and management of infections following lung transplantation.
    Recent findings: Valganciclovir is well tolerated and effective for long-term cytomegalovirus prophylaxis. Recently published guidelines recommend that foscarnet be added to ganciclovir for patients with life-threatening or sight-threatening disease while waiting for genotypic assay results because of ganciclovir-resistant strains. Mycobacterium abscessus has emerged as a significant pathogen in LTRs and should be eradicated in potential recipients before transplantation is performed. Preoperative Aspergillus colonization appears to not increase the risk of death after transplant. Azithromycin is protective against the development of bronchiolitis obliterans syndrome (BOS) and reduces mortality in LTRs. Eradication of Staphylococcus aureus in patients colonized prior to surgery can decrease postoperative surgical site infections from it by 80%. RNA interference therapy improves the symptoms of BOS in LTRs but does not have a direct antiviral effect.
    Summary: Although life-saving for most recipients, lung transplantation can be complicated by serious postoperative infections. Additional prospective studies are needed to better elucidate the role of molecular testing in the diagnosis of infections, to determine whether eradication of S. aureus colonization improves outcomes in LTRs, and to further evaluate the role of RNA interference therapy for infections in LTRs.
    MeSH term(s) Anti-Infective Agents/therapeutic use ; Humans ; Lung Transplantation/adverse effects ; Respiratory Tract Infections/diagnosis ; Respiratory Tract Infections/drug therapy ; Respiratory Tract Infections/microbiology ; Risk Factors
    Chemical Substances Anti-Infective Agents
    Language English
    Publishing date 2012-04
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 645085-4
    ISSN 1473-6527 ; 1535-3877 ; 0951-7375 ; 1355-834X
    ISSN (online) 1473-6527 ; 1535-3877
    ISSN 0951-7375 ; 1355-834X
    DOI 10.1097/QCO.0b013e32834c54bc
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Serum procalcitonin in the diagnosis and management of intra-abdominal infections.

    Watkins, Richard R / Lemonovich, Tracy L

    Expert review of anti-infective therapy

    2012  Volume 10, Issue 2, Page(s) 197–205

    Abstract: The biomarker procalcitonin (PCT) has been used to diagnose and monitor a number of clinically significant infections. Serum levels of PCT are often increased in the presence of bacterial and fungal infections but not viral infections or noninfectious ... ...

    Abstract The biomarker procalcitonin (PCT) has been used to diagnose and monitor a number of clinically significant infections. Serum levels of PCT are often increased in the presence of bacterial and fungal infections but not viral infections or noninfectious inflammation. Intra-abdominal infections (IAIs) are serious conditions that pose difficult challenges to physicians and the healthcare system. Researchers have evaluated PCT in the management of IAIs, both for diagnosis and for guiding antibiotic therapy. The studies have produced mixed results, leading to controversy on the utility of PCT in IAIs. PCT appears to be most useful in diagnosing postoperative infections and necrotizing pancreatitis. This review aims to summarize these data, explore the pathophysiology of PCT in sepsis from IAIs, discuss the strengths and weaknesses of PCT monitoring in IAIs, and provide guidance for the interpretation of PCT levels.
    MeSH term(s) Biological Assay ; Biomarkers/blood ; C-Reactive Protein/analysis ; Calcitonin/blood ; Calcitonin Gene-Related Peptide ; Databases, Bibliographic ; Enterobacteriaceae/growth & development ; Humans ; Inflammation/blood ; Inflammation/diagnosis ; Inflammation/microbiology ; Intraabdominal Infections/blood ; Intraabdominal Infections/diagnosis ; Intraabdominal Infections/microbiology ; Pancreas/microbiology ; Pancreatitis, Acute Necrotizing/blood ; Pancreatitis, Acute Necrotizing/diagnosis ; Pancreatitis, Acute Necrotizing/microbiology ; Postoperative Complications/blood ; Postoperative Complications/diagnosis ; Predictive Value of Tests ; Prognosis ; Protein Precursors/blood ; Sepsis/blood ; Sepsis/diagnosis ; Sepsis/microbiology
    Chemical Substances Biomarkers ; CALCA protein, human ; Protein Precursors ; Calcitonin Gene-Related Peptide (83652-28-2) ; Calcitonin (9007-12-9) ; C-Reactive Protein (9007-41-4)
    Language English
    Publishing date 2012-02
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2181279-2
    ISSN 1744-8336 ; 1478-7210
    ISSN (online) 1744-8336
    ISSN 1478-7210
    DOI 10.1586/eri.11.164
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: An update on the association of vitamin D deficiency with common infectious diseases.

    Watkins, Richard R / Lemonovich, Tracy L / Salata, Robert A

    Canadian journal of physiology and pharmacology

    2015  Volume 93, Issue 5, Page(s) 363–368

    Abstract: Vitamin D plays an important role in modulating the immune response to infections. Deficiency of vitamin D is a common condition, affecting both the general population and patients in health care facilities. Over the last decade, an increasing body of ... ...

    Abstract Vitamin D plays an important role in modulating the immune response to infections. Deficiency of vitamin D is a common condition, affecting both the general population and patients in health care facilities. Over the last decade, an increasing body of evidence has shown an association between vitamin D deficiency and an increased risk for acquiring several infectious diseases, as well as poorer outcomes in vitamin D deficient patients with infections. This review details recent developments in understanding the role of vitamin D in immunity, the antibacterial actions of vitamin D, the association between vitamin D deficiency and common infections (like sepsis, pneumonia, influenza, methicillin-resistant Staphylococcus aureus, human immunodeficiency virus type-1 (HIV), and hepatitis C virus (HCV)), potential therapeutic implications for vitamin D replacement, and future research directions.
    MeSH term(s) Adaptive Immunity/immunology ; Animals ; Communicable Diseases/diagnosis ; Communicable Diseases/drug therapy ; Communicable Diseases/immunology ; Humans ; Immunity, Innate/immunology ; Sepsis/diagnosis ; Sepsis/drug therapy ; Sepsis/immunology ; Vitamin D/immunology ; Vitamin D/therapeutic use ; Vitamin D Deficiency/diagnosis ; Vitamin D Deficiency/drug therapy ; Vitamin D Deficiency/immunology
    Chemical Substances Vitamin D (1406-16-2)
    Language English
    Publishing date 2015-05
    Publishing country Canada
    Document type Journal Article ; Review
    ZDB-ID 127527-6
    ISSN 1205-7541 ; 0008-4212
    ISSN (online) 1205-7541
    ISSN 0008-4212
    DOI 10.1139/cjpp-2014-0352
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Is C difficile to blame for your patient's diarrhea?

    Watkins, Richard R / Lemonovich, Tracy L

    The Journal of family practice

    2011  Volume 60, Issue 3, Page(s) 128–134

    MeSH term(s) Aged, 80 and over ; Clostridium difficile/isolation & purification ; Diagnosis, Differential ; Diarrhea/microbiology ; Enterocolitis, Pseudomembranous/diagnosis ; Enterocolitis, Pseudomembranous/drug therapy ; Female ; Humans
    Language English
    Publishing date 2011-03
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 197883-4
    ISSN 1533-7294 ; 0094-3509
    ISSN (online) 1533-7294
    ISSN 0094-3509
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Diagnosis and management of community-acquired pneumonia in adults.

    Watkins, Richard R / Lemonovich, Tracy L

    American family physician

    2011  Volume 83, Issue 11, Page(s) 1299–1306

    Abstract: Community-acquired pneumonia is diagnosed by clinical features (e.g., cough, fever, pleuritic chest pain) and by lung imaging, usually an infiltrate seen on chest radiography. Initial evaluation should determine the need for hospitalization versus ... ...

    Abstract Community-acquired pneumonia is diagnosed by clinical features (e.g., cough, fever, pleuritic chest pain) and by lung imaging, usually an infiltrate seen on chest radiography. Initial evaluation should determine the need for hospitalization versus outpatient management using validated mortality or severity prediction scores. Selected diagnostic laboratory testing, such as sputum and blood cultures, is indicated for inpatients with severe illness but is rarely useful for outpatients. Initial outpatient therapy should include a macrolide or doxycycline. For outpatients with comorbidities or who have used antibiotics within the previous three months, a respiratory fluoroquinolone (levofloxacin, gemifloxacin, or moxifloxacin), or an oral beta-lactam antibiotic plus a macrolide should be used. Inpatients not admitted to an intensive care unit should receive a respiratory fluoroquinolone, or a beta-lactam antibiotic plus a macrolide. Patients with severe community-acquired pneumonia or who are admitted to the intensive care unit should be treated with a beta-lactam antibiotic, plus azithromycin or a respiratory fluoroquinolone. Those with risk factors for Pseudomonas should be treated with a beta-lactam antibiotic (piperacillin/tazobactam, imipenem/cilastatin, meropenem, doripenem, or cefepime), plus an aminoglycoside and azithromycin or an antipseudomonal fluoroquinolone (levofloxacin or ciprofloxacin). Those with risk factors for methicillin-resistant Staphylococcus aureus should be given vancomycin or linezolid. Hospitalized patients may be switched from intravenous to oral antibiotics after they have clinical improvement and are able to tolerate oral medications, typically in the first three days. Adherence to the Infectious Diseases Society of America/American Thoracic Society guidelines for the management of community-acquired pneumonia has been shown to improve patient outcomes. Physicians should promote pneumococcal and influenza vaccination as a means to prevent community-acquired pneumonia and pneumococcal bacteremia.
    MeSH term(s) Acetamides/therapeutic use ; Adult ; Anti-Bacterial Agents/therapeutic use ; Anti-Infective Agents/therapeutic use ; Community-Acquired Infections/diagnosis ; Community-Acquired Infections/drug therapy ; Diagnosis, Differential ; Doxycycline/therapeutic use ; Drug Therapy, Combination ; Fluoroquinolones/therapeutic use ; Humans ; Influenza Vaccines/administration & dosage ; Linezolid ; Macrolides/therapeutic use ; Oxazolidinones/therapeutic use ; Pneumococcal Vaccines/administration & dosage ; Pneumonia, Bacterial/diagnosis ; Pneumonia, Bacterial/drug therapy ; Pneumonia, Bacterial/epidemiology ; Pneumonia, Bacterial/microbiology ; Pneumonia, Bacterial/prevention & control ; Practice Guidelines as Topic ; Risk Factors ; Treatment Outcome ; United States/epidemiology ; Vancomycin/therapeutic use ; beta-Lactams/therapeutic use
    Chemical Substances Acetamides ; Anti-Bacterial Agents ; Anti-Infective Agents ; Fluoroquinolones ; Influenza Vaccines ; Macrolides ; Oxazolidinones ; Pneumococcal Vaccines ; beta-Lactams ; Vancomycin (6Q205EH1VU) ; Linezolid (ISQ9I6J12J) ; Doxycycline (N12000U13O)
    Language English
    Publishing date 2011-06-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 412694-4
    ISSN 1532-0650 ; 0002-838X ; 0572-3612
    ISSN (online) 1532-0650
    ISSN 0002-838X ; 0572-3612
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Update on cytomegalovirus infections of the gastrointestinal system in solid organ transplant recipients.

    Lemonovich, Tracy L / Watkins, Richard R

    Current infectious disease reports

    2011  Volume 14, Issue 1, Page(s) 33–40

    Abstract: Cytomegalovirus (CMV) infection of the gastrointestinal tract is the most common manifestation of tissue-invasive CMV disease, and is a significant cause of morbidity and mortality in the solid organ transplantation (SOT) recipient. In addition to the ... ...

    Abstract Cytomegalovirus (CMV) infection of the gastrointestinal tract is the most common manifestation of tissue-invasive CMV disease, and is a significant cause of morbidity and mortality in the solid organ transplantation (SOT) recipient. In addition to the direct effects of the infection, its indirect effects on allograft function, risk for other opportunistic infections, and mortality are significant in this population. The most common clinical syndromes are esophagitis, colitis, and hepatitis; however, infection can occur anywhere in the gastrointestinal tract. Diagnosis is usually by histopathology or viral culture of tissue specimens; molecular assays also often have a role. Antivirals are the cornerstone of therapy for gastrointestinal tract CMV disease and complications such as recurrent infection and antiviral resistance are not uncommon. Prevention with antiviral prophylaxis or preemptive therapy is important. This review summarizes recent data regarding the clinical manifestations, diagnosis, treatment, and prevention of gastrointestinal tract CMV infection in the SOT population.
    Language English
    Publishing date 2011-11-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2019948-X
    ISSN 1534-3146 ; 1523-3847
    ISSN (online) 1534-3146
    ISSN 1523-3847
    DOI 10.1007/s11908-011-0224-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: An evidence-based review of linezolid for the treatment of methicillin-resistant Staphylococcus aureus (MRSA): place in therapy.

    Watkins, Richard R / Lemonovich, Tracy L / File, Thomas M

    Core evidence

    2012  Volume 7, Page(s) 131–143

    Abstract: Methicillin-resistant Staphylococcus aureus (MRSA), including community-associated and hospital-associated strains, is a major cause of human morbidity and mortality. Treatment options have become limited due to the emergence of MRSA strains with ... ...

    Abstract Methicillin-resistant Staphylococcus aureus (MRSA), including community-associated and hospital-associated strains, is a major cause of human morbidity and mortality. Treatment options have become limited due to the emergence of MRSA strains with decreased sensitivity to vancomycin, which has long been the first-line therapy for serious infections. This has prompted the search for novel antibiotics that are efficacious against MRSA. Linezolid, an oxazolidinone class of antibiotic, was approved by the Food and Drug Administration in 2000 for treatment of MRSA infections. Since then, there have been a multitude of clinical trials and research studies evaluating the effectiveness of linezolid against serious infections, including pneumonia (both community- and hospital-acquired), skin and soft-tissue infections such as diabetic foot ulcers, endocarditis, osteomyelitis, prosthetic devices, and others. The primary aim of this review is to provide an up-to-date evaluation of the clinical evidence for using linezolid to treat MRSA infections, with a focus on recently published studies, including those on nosocomial pneumonia. Other objectives are to analyze the cost-effectiveness of linezolid compared to other agents, and to review the pharmokinetics and pharmacodynamics of linezolid, emphasizing the most current concepts.
    Language English
    Publishing date 2012-12-11
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2520695-3
    ISSN 1555-175X ; 1555-175X
    ISSN (online) 1555-175X
    ISSN 1555-175X
    DOI 10.2147/CE.S33430
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top