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  1. Article ; Online: A Review of Omadacycline for Potential Utility in the Military Health System for the Treatment of Wound Infections.

    Zurawski, Daniel V / Serio, Alisa W / Black, Chad / Pybus, Brandon / Akers, Kevin S / Deck, Daniel H / Johnson, Sheila / Chattagul, Supaksorn / Noble, Schroeder M / Raynor, Malik / Lanteri, Charlotte A

    Military medicine

    2023  

    Abstract: Introduction: Combat-related wound infections complicate the recovery of wounded military personnel, contributing to overall morbidity and mortality. Wound infections in combat settings present unique challenges because of the size and depth of the ... ...

    Abstract Introduction: Combat-related wound infections complicate the recovery of wounded military personnel, contributing to overall morbidity and mortality. Wound infections in combat settings present unique challenges because of the size and depth of the wounds, the need to administer emergency care in the field, and the need for subsequent treatment in military facilities. Given the increase in multidrug-resistant pathogens, a novel, broad-spectrum antibiotic is desired across this continuum of care when the standard of care fails. Omadacycline was FDA-approved in 2018 for treatment of adults with acute bacterial skin and skin structure infections (ABSSSI), as well as community-acquired bacterial pneumonia (CABP). It is a broad-spectrum antibiotic with activity against gram-positive, gram-negative, and atypical bacterial pathogens, including multidrug-resistant species. Omadacycline can overcome commonly reported tetracycline resistance mechanisms, ribosomal protection proteins, and efflux pumps, and is available in once-daily intravenous or oral formulations. In this review, we discuss the potential role of omadacycline, which is included in the Department of Defense Formulary, in the context of combat wound infections.
    Materials and methods: A literature review was undertaken for manuscripts published before July 21, 2023. This included a series of publications found via PubMed and a bibliography made publicly available on the Paratek Pharmaceuticals, Inc. website. Publications presenting primary data published in English on omadacycline in relation to ESKAPEE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, Escherichia coli, and Enterobacter species) pathogens and Clostridioides difficile, including in vitro, in vivo, and clinical data were included.
    Results: Of 260 identified records, 66 were included for evidence review. Omadacycline has in vitro activity against almost all the ESKAPEE pathogens, apart from P. aeruginosa. Importantly, it has activity against the four most prevalent bacterial pathogens that cause wound infections in the military healthcare system: S. aureus, including methicillin-resistant S. aureus, A. baumannii, K. pneumoniae, and E. coli. In vivo studies in rats have shown that omadacycline is rapidly distributed in most tissues, with the highest tissue-to-blood concentration ratios in bone mineral. The clinical efficacy of omadacycline has been assessed in three separate Phase 3 studies in patients with ABSSSI (OASIS-1 and OASIS-2) and with CABP (OPTIC). Overall, omadacycline has an established safety profile in the treatment of both ABSSSI and CABP.
    Conclusions: Omadacycline has broad-spectrum activity, the option to be orally administered and an established safety profile, making it a potentially attractive replacement for moxifloxacin in the military individual first aid kit, especially when accounting for the increasing resistance to fluoroquinolones. Further studies and clinical evaluation are warranted to support broader use of omadacycline to treat combat wound infections in the military healthcare system.
    Language English
    Publishing date 2023-10-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 391061-1
    ISSN 1930-613X ; 0026-4075
    ISSN (online) 1930-613X
    ISSN 0026-4075
    DOI 10.1093/milmed/usad417
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  2. Article ; Online: Coccidioidomycosis Seroincidence and Risk among Military Personnel, Naval Air Station Lemoore, San Joaquin Valley, California, USA

    Ellis, Graham C / Lanteri, Charlotte A / Hsieh, Hsing-Chuan / Graf, Paul C F / Pineda, Gabriel / Crum-Cianflone, Nancy F / Berjohn, Catherine M / Sanders, Terrel / Maves, Ryan C / Deiss, Robert

    Emerging infectious diseases

    2022  Volume 28, Issue 9, Page(s) 1842–1846

    Abstract: We conducted a retrospective cohort study that tested 2,000 US military personnel for Coccidioides antibodies in a disease-endemic region. The overall incidence of seroconversion was 0.5 cases/100 person-years; 12.5% of persons who seroconverted had ... ...

    Abstract We conducted a retrospective cohort study that tested 2,000 US military personnel for Coccidioides antibodies in a disease-endemic region. The overall incidence of seroconversion was 0.5 cases/100 person-years; 12.5% of persons who seroconverted had illnesses requiring medical care. No significant association was found between demographic characteristics and seroconversion or disease.
    MeSH term(s) California ; Coccidioides ; Coccidioidomycosis/epidemiology ; Coccidioidomycosis/etiology ; Humans ; Incidence ; Military Personnel ; Retrospective Studies
    Language English
    Publishing date 2022-08-23
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1380686-5
    ISSN 1080-6059 ; 1080-6040
    ISSN (online) 1080-6059
    ISSN 1080-6040
    DOI 10.3201/eid2809.220652
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Utility of the Nanosphere Verigene in the Identification of Bacteremia Isolates From the Burn Intensive Care Unit.

    Farmer, Aaron / Lanteri, Charlotte A / Steele, Eric / Mende, Katrin / Pamplin, Jeremy / Akers, Kevin S

    Military medicine

    2017  Volume 182, Issue 9, Page(s) e1779–e1784

    Abstract: Introduction: The Nanosphere Verigene Blood Culture Nucleic Acid Tests allow pathogen and antimicrobial resistance marker identification within 2.5 hours of a positive blood culture. This study assessed the sensitivity of the Verigene among Burn ... ...

    Abstract Introduction: The Nanosphere Verigene Blood Culture Nucleic Acid Tests allow pathogen and antimicrobial resistance marker identification within 2.5 hours of a positive blood culture. This study assessed the sensitivity of the Verigene among Burn Intensive Care Unit (BICU) isolates and acceleration to targeted antibiotic therapy.
    Methods: Bacterial identifications from BICU patients with positive blood cultures over 8 months were compared using 2 different platforms, the Verigene Gram-positive and Gram-negative blood culture tests vs. the bioMerieux Vitek2 automated system. Turnaround times were compared, and Verigene sensitivity for identification and resistance marker detection was calculated. Antimicrobial stewardship was assessed by comparing date/time for empiric and targeted therapy to the Verigene result time.
    Results: Forty-four isolates (29 target and 15 nontarget) from 17 patients were included. The Verigene correctly identified 15 of 17 Gram-negative (sensitivity 88.2%; 95% confidence interval [CI] [87.9, 88.9]) and 8 of 12 Gram-positive target organisms (sensitivity 66.7%; 95% CI [66.3, 67.5]). None of the nontarget isolates were identified. There were no discordant identifications. Resistance marker identification by the Verigene was 100% concordant with confirmatory testing. For 11 isolates with complete laboratory and clinical data, the median time between Verigene and final culture results was 59.3 hours (37.3, 102.2) and from Verigene results to targeted therapy was 62.2 hours (43.6, 66.2).
    Discussion: Reasons for lower sensitivity than previously reported are unclear and, on the basis of this limited retrospective review, further study in the BICU population is needed. The Verigene appears useful for antimicrobial stewardship by accelerating the identification of blood isolates.
    MeSH term(s) Bacteremia/diagnosis ; Bacteremia/microbiology ; Blood Culture/instrumentation ; Blood Culture/methods ; Burns/complications ; Burns/therapy ; Humans ; Intensive Care Units/organization & administration ; Molecular Diagnostic Techniques/methods ; Nanospheres/microbiology ; Shock, Septic/prevention & control
    Language English
    Publishing date 2017-09-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 391061-1
    ISSN 1930-613X ; 0026-4075
    ISSN (online) 1930-613X
    ISSN 0026-4075
    DOI 10.7205/MILMED-D-17-00018
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Persistent COVID-19 Symptoms at 6 Months After Onset and the Role of Vaccination Before or After SARS-CoV-2 Infection.

    Richard, Stephanie A / Pollett, Simon D / Fries, Anthony C / Berjohn, Catherine M / Maves, Ryan C / Lalani, Tahaniyat / Smith, Alfred G / Mody, Rupal M / Ganesan, Anuradha / Colombo, Rhonda E / Lindholm, David A / Morris, Michael J / Huprikar, Nikhil / Colombo, Christopher J / Madar, Cristian / Jones, Milissa / Larson, Derek T / Bazan, Samantha E / Mende, Katrin /
    Saunders, David / Livezey, Jeffrey / Lanteri, Charlotte A / Scher, Ann I / Byrne, Celia / Rusiecki, Jennifer / Ewers, Evan / Epsi, Nusrat J / Rozman, Julia S / English, Caroline / Simons, Mark P / Tribble, David R / Agan, Brian K / Burgess, Timothy H

    JAMA network open

    2023  Volume 6, Issue 1, Page(s) e2251360

    Abstract: Importance: Understanding the factors associated with post-COVID conditions is important for prevention.: Objective: To identify characteristics associated with persistent post-COVID-19 symptoms and to describe post-COVID-19 medical encounters.: ... ...

    Abstract Importance: Understanding the factors associated with post-COVID conditions is important for prevention.
    Objective: To identify characteristics associated with persistent post-COVID-19 symptoms and to describe post-COVID-19 medical encounters.
    Design, setting, and participants: This cohort study used data from the Epidemiology, Immunology, and Clinical Characteristics of Emerging Infectious Diseases With Pandemic Potential (EPICC) study implemented in the US military health system (MHS); MHS beneficiaries aged 18 years or older who tested positive for SARS-CoV-2 from February 28, 2020, through December 31, 2021, were analyzed, with 1-year follow-up.
    Exposures: SARS-CoV-2 infection.
    Main outcomes and measures: The outcomes analyzed included survey-reported symptoms through 6 months after SARS-CoV-2 infection and International Statistical Classification of Diseases and Related Health Problems, Tenth Revision diagnosis categories reported in medical records 6 months following SARS-CoV-2 infection vs 3 months before infection.
    Results: More than half of the 1832 participants in these analyses were aged 18 to 44 years (1226 [66.9%]; mean [SD] age, 40.5 [13.7] years), were male (1118 [61.0%]), were unvaccinated at the time of their infection (1413 [77.1%]), and had no comorbidities (1290 [70.4%]). A total of 728 participants (39.7%) had illness that lasted 28 days or longer (28-89 days: 364 [19.9%]; ≥90 days: 364 [19.9%]). Participants who were unvaccinated prior to infection (risk ratio [RR], 1.39; 95% CI, 1.04-1.85), reported moderate (RR, 1.80; 95% CI, 1.47-2.22) or severe (RR, 2.25; 95% CI, 1.80-2.81) initial illnesses, had more hospitalized days (RR per each day of hospitalization, 1.02; 95% CI, 1.00-1.03), and had a Charlson Comorbidity Index score of 5 or greater (RR, 1.55; 95% CI, 1.01-2.37) were more likely to report 28 or more days of symptoms. Among unvaccinated participants, postinfection vaccination was associated with a 41% lower risk of reporting symptoms at 6 months (RR, 0.59; 95% CI, 0.40-0.89). Participants had higher risk of pulmonary (RR, 2.00; 95% CI, 1.40-2.84), diabetes (RR, 1.46; 95% CI, 1.00-2.13), neurological (RR, 1.29; 95% CI, 1.02-1.64), and mental health-related medical encounters (RR, 1.28; 95% CI, 1.01-1.62) at 6 months after symptom onset than at baseline (before SARS-CoV-2 infection).
    Conclusions and relevance: In this cohort study, more severe acute illness, a higher Charlson Comorbidity Index score, and being unvaccinated were associated with a higher risk of reporting COVID-19 symptoms lasting 28 days or more. Participants with COVID-19 were more likely to seek medical care for diabetes, pulmonary, neurological, and mental health-related illness for at least 6 months after onset compared with their pre-COVID baseline health care use patterns. These findings may inform the risk-benefit ratio of COVID-19 vaccination policy.
    MeSH term(s) Humans ; Male ; Adult ; Female ; COVID-19/epidemiology ; COVID-19/prevention & control ; SARS-CoV-2 ; COVID-19 Vaccines ; Cohort Studies ; Post-Acute COVID-19 Syndrome
    Chemical Substances COVID-19 Vaccines
    Language English
    Publishing date 2023-01-03
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, N.I.H., Extramural
    ISSN 2574-3805
    ISSN (online) 2574-3805
    DOI 10.1001/jamanetworkopen.2022.51360
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Genetic diversity among Plasmodium vivax isolates along the Thai-Myanmar border of Thailand.

    Maneerattanasak, Sarunya / Gosi, Panita / Krudsood, Srivicha / Tongshoob, Jarinee / Lanteri, Charlotte A / Snounou, Georges / Khusmith, Srisin

    Malaria journal

    2016  Volume 15, Page(s) 75

    Abstract: Background: Knowledge of the population genetics and transmission dynamics of Plasmodium vivax is crucial in predicting the emergence of drug resistance, relapse pattern and novel parasite phenotypes, all of which are relevant to the control of vivax ... ...

    Abstract Background: Knowledge of the population genetics and transmission dynamics of Plasmodium vivax is crucial in predicting the emergence of drug resistance, relapse pattern and novel parasite phenotypes, all of which are relevant to the control of vivax infections. The aim of this study was to analyse changes in the genetic diversity of P. vivax genes from field isolates collected at different times along the Thai-Myanmar border.
    Methods: Two hundred and fifty-four P. vivax isolates collected during two periods 10 years apart along the Thai-Myanmar border were analysed. The parasites were genotyped by nested-PCR and PCR-RFLP targeting selected polymorphic loci of Pvmsp1, Pvmsp3α and Pvcsp genes.
    Results: The total number of distinguishable allelic variants observed for Pvcsp, Pvmsp1, and Pvmsp3α was 17, 7 and 3, respectively. High genetic diversity was observed for Pvcsp (H E = 0.846) and Pvmsp1 (H E = 0.709). Of the 254 isolates, 4.3 and 14.6 % harboured mixed Pvmsp1 and Pvcsp genotypes with a mean multiplicity of infection (MOI) of 1.06 and 1.15, respectively. The overall frequency of multiple genotypes was 16.9 %. When the frequencies of allelic variants of each gene during the two distinct periods were analysed, significant differences were noted for Pvmsp1 (P = 0.018) and the Pvcsp (P = 0.033) allelic variants.
    Conclusion: Despite the low malaria transmission levels in Thailand, P. vivax population exhibit a relatively high degree of genetic diversity along the Thai-Myanmar border of Thailand, in particular for Pvmsp1 and Pvcsp, with indication of geographic and temporal variation in frequencies for some variants. These results are of relevance to monitoring the emergence of drug resistance and to the elaboration of measures to control vivax malaria.
    MeSH term(s) Adolescent ; Adult ; Female ; Genetic Variation/genetics ; Genotype ; Humans ; Malaria, Vivax/parasitology ; Male ; Middle Aged ; Plasmodium vivax/classification ; Plasmodium vivax/genetics ; Polymerase Chain Reaction ; Protozoan Proteins/genetics ; Thailand ; Young Adult
    Chemical Substances Protozoan Proteins
    Language English
    Publishing date 2016-02-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1475-2875
    ISSN (online) 1475-2875
    DOI 10.1186/s12936-016-1136-6
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  6. Article: Recent advances in malaria drug discovery.

    Lanteri, Charlotte A / Johnson, Jacob D / Waters, Norman C

    Recent patents on anti-infective drug discovery

    2008  Volume 2, Issue 2, Page(s) 95–114

    Abstract: Malaria is responsible for over 300 million clinical cases annually and claims the lives of approximately 1-2 million. With a disease that has plagued humanity throughout history, one would think that better control measures would be in place to decrease ...

    Abstract Malaria is responsible for over 300 million clinical cases annually and claims the lives of approximately 1-2 million. With a disease that has plagued humanity throughout history, one would think that better control measures would be in place to decrease the mortality and morbidity associated with malaria. Due to malaria drug resistance, an increase in the number of clinical infections and deaths is soon likely to be observed. Therefore, there is a push to identify and introduce new drug entities for malaria treatment and prophylaxis. In an effort to develop new malaria drugs, several different approaches have been implemented. These include the use of drug combinations of either new or existing antimalarials, exploitation of natural products, identification of resistance reversal or sensitizing agents and the targeting of specific malarial enzymes. Past experience has shown that introduction of the same chemical entities, such as quinolines and antifolates, results in only limited efficacy with resistance developing rapidly within one year of introduction. New approaches to drug discovery should identify novel chemotypes which circumvent the parasite's disposition to drug resistance. This review summarizes current efforts in malaria drug discovery as uncovered in recent patent literature.
    MeSH term(s) Alkyl and Aryl Transferases/antagonists & inhibitors ; Animals ; Anti-Bacterial Agents/pharmacology ; Antimalarials/antagonists & inhibitors ; Antimalarials/chemistry ; Antimalarials/pharmacology ; Antimalarials/therapeutic use ; Biological Products/chemistry ; Biological Products/pharmacology ; Drug Combinations ; Drug Resistance ; Enzyme Inhibitors/chemistry ; Enzyme Inhibitors/pharmacology ; Enzyme Inhibitors/therapeutic use ; Hemeproteins/antagonists & inhibitors ; Humans ; Liver/parasitology ; Malaria/drug therapy ; Malaria/parasitology ; Patents as Topic ; Plasmodium/drug effects ; Plasmodium/growth & development ; Protease Inhibitors/pharmacology ; Protease Inhibitors/therapeutic use
    Chemical Substances Anti-Bacterial Agents ; Antimalarials ; Biological Products ; Drug Combinations ; Enzyme Inhibitors ; Hemeproteins ; Protease Inhibitors ; hemozoin (39404-00-7) ; Alkyl and Aryl Transferases (EC 2.5.-) ; p21(ras) farnesyl-protein transferase (EC 2.5.1.-)
    Language English
    Publishing date 2008-01-02
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 2261296-8
    ISSN 2212-4071 ; 1574-891X
    ISSN (online) 2212-4071
    ISSN 1574-891X
    DOI 10.2174/157489107780832640
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  7. Article: The mitochondrion is a site of trypanocidal action of the aromatic diamidine DB75 in bloodstream forms of Trypanosoma brucei.

    Lanteri, Charlotte A / Tidwell, Richard R / Meshnick, Steven R

    Antimicrobial agents and chemotherapy

    2007  Volume 52, Issue 3, Page(s) 875–882

    Abstract: Human African trypanosomiasis (HAT) is a fatal tropical disease caused by infection with protozoans of the species Trypanosoma brucei gambiense and T. b. rhodesiense. An oral prodrug, DB289, is a promising new therapy undergoing phase III clinical trials ...

    Abstract Human African trypanosomiasis (HAT) is a fatal tropical disease caused by infection with protozoans of the species Trypanosoma brucei gambiense and T. b. rhodesiense. An oral prodrug, DB289, is a promising new therapy undergoing phase III clinical trials for early-stage HAT. DB289 is metabolically converted to the active trypanocidal diamidine DB75 [2,5-bis(4-amidinophenyl)furan]. We previously determined that DB75 inhibits yeast mitochondrial function (C. A. Lanteri, B. L. Trumpower, R. R. Tidwell, and S. R. Meshnick, Antimicrob. Agent Chemother. 48:3968-3974, 2004). The purpose of this study was to investigate if DB75 targets the mitochondrion of T. b. brucei bloodstream forms. DB75 rapidly accumulates within the mitochondria of living trypanosomes, as indicated by the fluorescent colocalization of DB75 with a mitochondrion-specific dye. Fluorescence-activated cell sorting analysis of rhodamine 123-stained living trypanosomes shows that DB75 and other trypanocidal diamidines (pentamidine and diminazene) collapse the mitochondrial membrane potential. DB75 inhibits ATP hydrolysis within T. brucei mitochondria and appears to inhibit the oligomycin-sensitive F 1 F 0-ATPase and perhaps other ATPases. DB75 is most likely not an inhibitor of electron transport within trypanosome mitochondria, since DB75 fails to inhibit mitochondrial respiration when glycerol-3-phosphate is used as the respiratory substrate. However, DB75 inhibits whole-cell respiration (50% inhibitory concentration, 20 microM) at drug concentrations and incubation durations that also result in the dissipation of the mitochondrial membrane potential. Taken together, these findings suggest that the mitochondrion is a target of the trypanocidal action of DB75.
    MeSH term(s) Animals ; Benzamidines/pharmacology ; Blood/parasitology ; Flow Cytometry ; Fluorescent Dyes/metabolism ; Membrane Potentials/drug effects ; Mice ; Mitochondria/drug effects ; Mitochondria/metabolism ; Oxygen Consumption/drug effects ; Proton-Translocating ATPases/drug effects ; Proton-Translocating ATPases/metabolism ; Rats ; Rats, Sprague-Dawley ; Rhodamine 123/metabolism ; Trypanocidal Agents/pharmacology ; Trypanosoma brucei brucei/drug effects ; Trypanosoma brucei brucei/physiology ; Trypanosoma brucei brucei/ultrastructure ; Trypanosomiasis, African/parasitology
    Chemical Substances Benzamidines ; Fluorescent Dyes ; Trypanocidal Agents ; Rhodamine 123 (1N3CZ14C5O) ; furamidine (73819-26-8) ; Proton-Translocating ATPases (EC 3.6.3.14)
    Language English
    Publishing date 2007-12-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 217602-6
    ISSN 1098-6596 ; 0066-4804
    ISSN (online) 1098-6596
    ISSN 0066-4804
    DOI 10.1128/AAC.00642-07
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  8. Article ; Online: Ex vivo activity of endoperoxide antimalarials, including artemisone and arterolane, against multidrug-resistant Plasmodium falciparum isolates from Cambodia.

    Lanteri, Charlotte A / Chaorattanakawee, Suwanna / Lon, Chanthap / Saunders, David L / Rutvisuttinunt, Wiriya / Yingyuen, Kritsanai / Bathurst, Ian / Ding, Xavier C / Tyner, Stuart D

    Antimicrobial agents and chemotherapy

    2014  Volume 58, Issue 10, Page(s) 5831–5840

    Abstract: Novel synthetic endoperoxides are being evaluated as new components of artemisinin combination therapies (ACTs) to treat artemisinin-resistant Plasmodium falciparum malaria. We conducted blinded ex vivo activity testing of fully synthetic (OZ78 and OZ277) ...

    Abstract Novel synthetic endoperoxides are being evaluated as new components of artemisinin combination therapies (ACTs) to treat artemisinin-resistant Plasmodium falciparum malaria. We conducted blinded ex vivo activity testing of fully synthetic (OZ78 and OZ277) and semisynthetic (artemisone, artemiside, artesunate, and dihydroartemisinin) endoperoxides in the histidine-rich protein 2 enzyme-linked immunosorbent assay against 200 P. falciparum isolates from areas of artemisinin-resistant malaria in western and northern Cambodia in 2009 and 2010. The order of potency and geometric mean (GM) 50% inhibitory concentrations (IC50s) were as follows: artemisone (2.40 nM) > artesunate (8.49 nM) > dihydroartemisinin (11.26 nM) > artemiside (15.28 nM) > OZ277 (31.25 nM) > OZ78 (755.27 nM). Ex vivo activities of test endoperoxides positively correlated with dihydroartemisinin and artesunate. The isolates were over 2-fold less susceptible to dihydroartemisinin than the artemisinin-sensitive P. falciparum W2 clone and showed sensitivity comparable to those with test endoperoxides and artesunate, with isolate/W2 IC50 susceptibility ratios of <2.0. All isolates had P. falciparum chloroquine resistance transporter mutations, with negative correlations in sensitivity to endoperoxides and chloroquine. The activities of endoperoxides (artesunate, dihydroartemisinin, OZ277, and artemisone) significantly correlated with that of the ACT partner drug, mefloquine. Isolates had mutations associated with clinical resistance to mefloquine, with 35% prevalence of P. falciparum multidrug resistance gene 1 (pfmdr1) amplification and 84.5% occurrence of the pfmdr1 Y184F mutation. GM IC50s for mefloquine, lumefantrine, and endoperoxides (artesunate, dihydroartemisinin, OZ277, OZ78, and artemisone) correlated with pfmdr1 copy number. Given that current ACTs are failing potentially from reduced sensitivity to artemisinins and partner drugs, newly identified mutations associated with artemisinin resistance reported in the literature and pfmdr1 mutations should be examined for their combined contributions to emerging ACT resistance.
    MeSH term(s) Antimalarials/pharmacology ; Artemisinins/pharmacology ; Artesunate ; Cambodia ; Chloroquine/pharmacology ; Heterocyclic Compounds, 1-Ring/pharmacology ; Parasitic Sensitivity Tests ; Peroxides/pharmacology ; Plasmodium falciparum/drug effects ; Spiro Compounds/pharmacology
    Chemical Substances Antimalarials ; Artemisinins ; Heterocyclic Compounds, 1-Ring ; Peroxides ; Spiro Compounds ; arterolane (3N1TN351VB) ; Artesunate (60W3249T9M) ; artenimol (6A9O50735X) ; artemisone (796LMW5BUZ) ; Chloroquine (886U3H6UFF)
    Language English
    Publishing date 2014-07-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 217602-6
    ISSN 1098-6596 ; 0066-4804
    ISSN (online) 1098-6596
    ISSN 0066-4804
    DOI 10.1128/AAC.02462-14
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: COVID-19 Outcomes Among US Military Health System Beneficiaries Include Complications Across Multiple Organ Systems and Substantial Functional Impairment.

    Richard, Stephanie A / Pollett, Simon D / Lanteri, Charlotte A / Millar, Eugene V / Fries, Anthony C / Maves, Ryan C / Utz, Gregory C / Lalani, Tahaniyat / Smith, Alfred / Mody, Rupal M / Ganesan, Anuradha / Colombo, Rhonda E / Colombo, Christopher J / Lindholm, David A / Madar, Cristian / Chi, Sharon / Huprikar, Nikhil / Larson, Derek T / Bazan, Samantha E /
    English, Caroline / Parmelee, Edward / Mende, Katrin / Laing, Eric D / Broder, Christopher C / Blair, Paul W / Chenoweth, Josh G / Simons, Mark P / Tribble, David R / Agan, Brian K / Burgess, Timothy H

    Open forum infectious diseases

    2021  Volume 8, Issue 12, Page(s) ofab556

    Abstract: Background: We evaluated clinical outcomes, functional burden, and complications 1 month after coronavirus disease 2019 (COVID-19) infection in a prospective US Military Health System (MHS) cohort of active duty, retiree, and dependent populations using ...

    Abstract Background: We evaluated clinical outcomes, functional burden, and complications 1 month after coronavirus disease 2019 (COVID-19) infection in a prospective US Military Health System (MHS) cohort of active duty, retiree, and dependent populations using serial patient-reported outcome surveys and electronic medical record (EMR) review.
    Methods: MHS beneficiaries presenting at 9 sites across the United States with a positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) test, a COVID-19-like illness, or a high-risk SARS-CoV-2 exposure were eligible for enrollment. Medical history and clinical outcomes were collected through structured interviews and International Classification of Diseases-based EMR review. Risk factors associated with hospitalization were determined by multivariate logistic regression.
    Results: A total of 1202 participants were enrolled. There were 1070 laboratory-confirmed SARS-CoV-2 cases and 132 SARS-CoV-2-negative participants. In the first month post-symptom onset among the SARS-CoV-2-positive cases, there were 212 hospitalizations, 80% requiring oxygen, 20 ICU admissions, and 10 deaths. Risk factors for COVID-19-associated hospitalization included race (increased for Asian, Black, and Hispanic compared with non-Hispanic White), age (age 45-64 and 65+ compared with <45), and obesity (BMI≥30 compared with BMI<30). Over 2% of survey respondents reported the need for supplemental oxygen, and 31% had not returned to normal daily activities at 1 month post-symptom onset.
    Conclusions: Older age, reporting Asian, Black, or Hispanic race/ethnicity, and obesity are associated with SARS-CoV-2 hospitalization. A proportion of acute SARS-CoV-2 infections require long-term oxygen therapy; the impact of SARS-CoV-2 infection on short-term functional status was substantial. A significant number of MHS beneficiaries had not yet returned to normal activities by 1 month.
    Language English
    Publishing date 2021-11-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2757767-3
    ISSN 2328-8957
    ISSN 2328-8957
    DOI 10.1093/ofid/ofab556
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Development of a capillary electrophoresis-based heteroduplex tracking assay to measure in-host genetic diversity of initial and recurrent Plasmodium vivax infections in Cambodia.

    Givens, Matthew B / Lin, Jessica T / Lon, Chanthap / Gosi, Panita / Char, Meng Chuor / Lanteri, Charlotte A / Saunders, David L / Juliano, Jonathan J

    Journal of clinical microbiology

    2013  Volume 52, Issue 1, Page(s) 298–301

    Abstract: A heteroduplex tracking assay used to genotype Plasmodium vivax merozoite surface protein 1 was adapted to a capillary electrophoresis format, obviating the need for radiolabeled probes and allowing its use in settings where malaria is endemic. This new ... ...

    Abstract A heteroduplex tracking assay used to genotype Plasmodium vivax merozoite surface protein 1 was adapted to a capillary electrophoresis format, obviating the need for radiolabeled probes and allowing its use in settings where malaria is endemic. This new assay achieved good allelic discrimination and detected high multiplicities of infection in 63 P. vivax infections in Cambodia. More than half of the recurrent parasitemias sampled displayed identical or highly related genotypes compared to the initial genotype, suggesting that they represented relapses.
    MeSH term(s) Cambodia ; DNA, Protozoan/chemistry ; DNA, Protozoan/genetics ; Electrophoresis, Capillary/methods ; Genetic Variation ; Heteroduplex Analysis/methods ; Humans ; Malaria, Vivax/parasitology ; Merozoite Surface Protein 1/genetics ; Molecular Sequence Data ; Plasmodium vivax/classification ; Plasmodium vivax/genetics ; Plasmodium vivax/isolation & purification ; Recurrence ; Sequence Analysis, DNA
    Chemical Substances DNA, Protozoan ; Merozoite Surface Protein 1
    Language English
    Publishing date 2013-10-16
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 390499-4
    ISSN 1098-660X ; 0095-1137
    ISSN (online) 1098-660X
    ISSN 0095-1137
    DOI 10.1128/JCM.02274-13
    Database MEDical Literature Analysis and Retrieval System OnLINE

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