LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 64

Search options

  1. Article ; Online: Nouvelles AMM : ripretinib dans le traitement des GIST avancées à partir de la quatrième ligne.

    Lemaître, Joséphine / Watson, Sarah

    Bulletin du cancer

    2022  Volume 109, Issue 3, Page(s) 250–252

    Title translation New drug approvals: Ripretinib for advanced gastrointestinal stromal tumors (GIST) in fourth or later-line therapy.
    MeSH term(s) Antineoplastic Agents/pharmacology ; Antineoplastic Agents/therapeutic use ; Drug Approval ; Drug Resistance, Neoplasm ; Gastrointestinal Neoplasms/drug therapy ; Gastrointestinal Neoplasms/pathology ; Gastrointestinal Stromal Tumors/drug therapy ; Gastrointestinal Stromal Tumors/pathology ; Humans ; Mutation ; Naphthyridines/therapeutic use ; Protein Kinase Inhibitors/pharmacology ; Protein Kinase Inhibitors/therapeutic use ; Proto-Oncogene Proteins c-kit/genetics ; Proto-Oncogene Proteins c-kit/therapeutic use ; Urea/analogs & derivatives ; Urea/therapeutic use
    Chemical Substances Antineoplastic Agents ; Naphthyridines ; Protein Kinase Inhibitors ; Urea (8W8T17847W) ; ripretinib (9XW757O13D) ; Proto-Oncogene Proteins c-kit (EC 2.7.10.1)
    Language French
    Publishing date 2022-01-31
    Publishing country France
    Document type Letter
    ZDB-ID 213270-9
    ISSN 1769-6917 ; 0007-4551
    ISSN (online) 1769-6917
    ISSN 0007-4551
    DOI 10.1016/j.bulcan.2022.01.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: flepiMoP: The evolution of a flexible infectious disease modeling pipeline during the COVID-19 pandemic.

    Lemaitre, Joseph C / Loo, Sara L / Kaminsky, Joshua / Lee, Elizabeth C / McKee, Clifton / Smith, Claire / Jung, Sung-Mok / Sato, Koji / Carcelen, Erica / Hill, Alison / Lessler, Justin / Truelove, Shaun

    Epidemics

    2024  Volume 47, Page(s) 100753

    Abstract: The COVID-19 pandemic led to an unprecedented demand for projections of disease burden and healthcare utilization under scenarios ranging from unmitigated spread to strict social distancing policies. In response, members of the Johns Hopkins Infectious ... ...

    Abstract The COVID-19 pandemic led to an unprecedented demand for projections of disease burden and healthcare utilization under scenarios ranging from unmitigated spread to strict social distancing policies. In response, members of the Johns Hopkins Infectious Disease Dynamics Group developed flepiMoP (formerly called the COVID Scenario Modeling Pipeline), a comprehensive open-source software pipeline designed for creating and simulating compartmental models of infectious disease transmission and inferring parameters through these models. The framework has been used extensively to produce short-term forecasts and longer-term scenario projections of COVID-19 at the state and county level in the US, for COVID-19 in other countries at various geographic scales, and more recently for seasonal influenza. In this paper, we highlight how the flepiMoP has evolved throughout the COVID-19 pandemic to address changing epidemiological dynamics, new interventions, and shifts in policy-relevant model outputs. As the framework has reached a mature state, we provide a detailed overview of flepiMoP's key features and remaining limitations, thereby distributing flepiMoP and its documentation as a flexible and powerful tool for researchers and public health professionals to rapidly build and deploy large-scale complex infectious disease models for any pathogen and demographic setup.
    Language English
    Publishing date 2024-03-02
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2467993-8
    ISSN 1878-0067 ; 1755-4365
    ISSN (online) 1878-0067
    ISSN 1755-4365
    DOI 10.1016/j.epidem.2024.100753
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Epidemicity of cholera spread and the fate of infection control measures.

    Trevisin, Cristiano / Lemaitre, Joseph C / Mari, Lorenzo / Pasetto, Damiano / Gatto, Marino / Rinaldo, Andrea

    Journal of the Royal Society, Interface

    2022  Volume 19, Issue 188, Page(s) 20210844

    Abstract: The fate of ongoing infectious disease outbreaks is predicted through reproduction numbers, defining the long-term establishment of the infection, and epidemicity indices, tackling the reactivity of the infectious pool to new contagions. Prognostic ... ...

    Abstract The fate of ongoing infectious disease outbreaks is predicted through reproduction numbers, defining the long-term establishment of the infection, and epidemicity indices, tackling the reactivity of the infectious pool to new contagions. Prognostic metrics of unfolding outbreaks are of particular importance when designing adaptive emergency interventions facing real-time assimilation of epidemiological evidence. Our aim here is twofold. First, we propose a novel form of the epidemicity index for the characterization of cholera epidemics in spatial models of disease spread. Second, we examine in hindsight the survey of infections, treatments and containment measures carried out for the now extinct 2010-2019 Haiti cholera outbreak, to suggest that magnitude and timing of non-pharmaceutical and vaccination interventions imply epidemiological responses recapped by the evolution of epidemicity indices. Achieving negative epidemicity greatly accelerates fading of infections and thus proves a worthwhile target of containment measures. We also show that, in our model, effective reproduction numbers and epidemicity indices are explicitly related. Therefore, providing an upper bound to the effective reproduction number (significantly lower than the unit threshold) warrants negative epidemicity and, in turn, a rapidly fading outbreak preventing coalescence of sparse local sub-threshold flare-ups.
    MeSH term(s) Basic Reproduction Number ; Cholera/epidemiology ; Cholera/prevention & control ; Disease Outbreaks/prevention & control ; Epidemics ; Haiti/epidemiology ; Humans ; Infection Control
    Language English
    Publishing date 2022-03-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2156283-0
    ISSN 1742-5662 ; 1742-5689
    ISSN (online) 1742-5662
    ISSN 1742-5689
    DOI 10.1098/rsif.2021.0844
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Nocardia neocaledoniensis as Rare Cause of Spondylodiscitis.

    Choquet, Emeline / Rodriguez-Nava, Veronica / Peltier, François / Wankap-Mogo, Rodrigue / Bergeron, Emmanuelle / Joseph, Cédric / Lemaitre, Nadine

    Emerging infectious diseases

    2023  Volume 29, Issue 2, Page(s) 444–446

    Abstract: Nocardia neocaledoniensis is a rare species of Nocardia bacteria, identified in 2004 in hypermagnesian ultramafic soil of New Caledonia. Culture of this opportunistic pathogen from spinal biopsy samples confirmed N. neocaledoniensis spondylodiscitis in ... ...

    Abstract Nocardia neocaledoniensis is a rare species of Nocardia bacteria, identified in 2004 in hypermagnesian ultramafic soil of New Caledonia. Culture of this opportunistic pathogen from spinal biopsy samples confirmed N. neocaledoniensis spondylodiscitis in an immunocompromised man. Isolation of this unusual species from spinal biopsy samples illustrates its underappreciated ability to cause invasive infection.
    MeSH term(s) Humans ; Male ; Discitis/diagnosis ; Nocardia/genetics ; Nocardia Infections/diagnosis ; Nocardia Infections/drug therapy ; Bacteria ; RNA, Ribosomal, 16S
    Chemical Substances RNA, Ribosomal, 16S
    Language English
    Publishing date 2023-01-24
    Publishing country United States
    Document type Letter
    ZDB-ID 1380686-5
    ISSN 1080-6059 ; 1080-6040
    ISSN (online) 1080-6059
    ISSN 1080-6040
    DOI 10.3201/eid2902.221389
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Range of reproduction number estimates for COVID-19 spread.

    Pasetto, Damiano / Lemaitre, Joseph C / Bertuzzo, Enrico / Gatto, Marino / Rinaldo, Andrea

    Biochemical and biophysical research communications

    2020  Volume 538, Page(s) 253–258

    Abstract: To monitor local and global COVID-19 outbreaks, and to plan containment measures, accessible and comprehensible decision-making tools need to be based on the growth rates of new confirmed infections, hospitalization or case fatality rates. Growth rates ... ...

    Abstract To monitor local and global COVID-19 outbreaks, and to plan containment measures, accessible and comprehensible decision-making tools need to be based on the growth rates of new confirmed infections, hospitalization or case fatality rates. Growth rates of new cases form the empirical basis for estimates of a variety of reproduction numbers, dimensionless numbers whose value, when larger than unity, describes surging infections and generally worsening epidemiological conditions. Typically, these determinations rely on noisy or incomplete data gained over limited periods of time, and on many parameters to estimate. This paper examines how estimates from data and models of time-evolving reproduction numbers of national COVID-19 infection spread change by using different techniques and assumptions. Given the importance acquired by reproduction numbers as diagnostic tools, assessing their range of possible variations obtainable from the same epidemiological data is relevant. We compute control reproduction numbers from Swiss and Italian COVID-19 time series adopting both data convolution (renewal equation) and a SEIR-type model. Within these two paradigms we run a comparative analysis of the possible inferences obtained through approximations of the distributions typically used to describe serial intervals, generation, latency and incubation times, and the delays between onset of symptoms and notification. Our results suggest that estimates of reproduction numbers under these different assumptions may show significant temporal differences, while the actual variability range of computed values is rather small.
    MeSH term(s) Basic Reproduction Number ; COVID-19/epidemiology ; COVID-19/transmission ; Humans ; Models, Statistical ; Stochastic Processes
    Language English
    Publishing date 2020-12-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 205723-2
    ISSN 1090-2104 ; 0006-291X ; 0006-291X
    ISSN (online) 1090-2104 ; 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2020.12.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Assessing the impact of non-pharmaceutical interventions on SARS-CoV-2 transmission in Switzerland.

    Lemaitre, Joseph C / Perez-Saez, Javier / Azman, Andrew S / Rinaldo, Andrea / Fellay, Jacques

    Swiss medical weekly

    2020  Volume 150, Page(s) w20295

    Abstract: Following the rapid dissemination of COVID-19 cases in Switzerland, large-scale non-pharmaceutical interventions (NPIs) were implemented by the cantons and the federal government between 28 February and 20 March 2020. Estimates of the impact of these ... ...

    Abstract Following the rapid dissemination of COVID-19 cases in Switzerland, large-scale non-pharmaceutical interventions (NPIs) were implemented by the cantons and the federal government between 28 February and 20 March 2020. Estimates of the impact of these interventions on SARS-CoV-2 transmission are critical for decision making in this and future outbreaks. We here aim to assess the impact of these NPIs on disease transmission by estimating changes in the basic reproduction number (R0) at national and cantonal levels in relation to the timing of these NPIs. We estimated the time-varying R0 nationally and in eleven cantons by fitting a stochastic transmission model explicitly simulating within-hospital dynamics. We used individual-level data from more than 1000 hospitalised patients in Switzerland and public daily reports of hospitalisations and deaths. We estimated the national R0 to be 2.8 (95% confidence interval 2.1–3.8) at the beginning of the epidemic. Starting from around 7 March, we found a strong reduction in time-varying R0 with a 86% median decrease (95% quantile range [QR] 79–90%) to a value of 0.40 (95% QR 0.3–0.58) in the period of 29 March to 5 April. At the cantonal level, R0 decreased over the course of the epidemic between 53% and 92%. Reductions in time-varying R0 were synchronous with changes in mobility patterns as estimated through smartphone activity, which started before the official implementation of NPIs. We inferred that most of the reduction of transmission is attributable to behavioural changes as opposed to natural immunity, the latter accounting for only about 4% of the total reduction in effective transmission. As Switzerland considers relaxing some of the restrictions of social mixing, current estimates of time-varying R0 well below one are promising. However, as of 24 April 2020, at least 96% (95% QR 95.7–96.4%) of the Swiss population remains susceptible to SARS-CoV-2. These results warrant a cautious relaxation of social distance practices and close monitoring of changes in both the basic and effective reproduction numbers.
    MeSH term(s) Betacoronavirus/isolation & purification ; COVID-19 ; Communicable Disease Control/methods ; Communicable Disease Control/organization & administration ; Communicable Disease Control/statistics & numerical data ; Communicable Diseases, Emerging/prevention & control ; Coronavirus Infections/epidemiology ; Coronavirus Infections/prevention & control ; Coronavirus Infections/transmission ; Disease Transmission, Infectious/prevention & control ; Disease Transmission, Infectious/statistics & numerical data ; Hospitalization/statistics & numerical data ; Humans ; Models, Statistical ; Mortality ; Pandemics/prevention & control ; Pandemics/statistics & numerical data ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/prevention & control ; Pneumonia, Viral/transmission ; SARS-CoV-2 ; Space-Time Clustering ; Stochastic Processes
    Keywords covid19
    Language English
    Publishing date 2020-05-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2036179-8
    ISSN 1424-3997 ; 1424-7860
    ISSN (online) 1424-3997
    ISSN 1424-7860
    DOI 10.4414/smw.2020.20295
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: The Gut Microbial Metabolite Trimethylamine N-oxide, Incident CKD, and Kidney Function Decline.

    Wang, Meng / Tang, W H Wilson / Li, Xinmin S / de Oliveira Otto, Marcia C / Lee, Yujin / Lemaitre, Rozenn N / Fretts, Amanda / Nemet, Ina / Sotoodehnia, Nona / Sitlani, Colleen M / Budoff, Matthew / DiDonato, Joseph A / Wang, Zeneng / Bansal, Nisha / Shlipak, Michael G / Psaty, Bruce M / Siscovick, David S / Sarnak, Mark J / Mozaffarian, Dariush /
    Hazen, Stanley L

    Journal of the American Society of Nephrology : JASN

    2024  

    Abstract: ... Cystatin C were measured up to 4 times during follow-up and used to compute eGFR. Incident CKD was defined ...

    Abstract Background: Trimethylamine N-oxide (TMAO) is a gut microbiota-derived metabolite of dietary phosphatidylcholine and carnitine. Experimentally, TMAO causes kidney injury and tubulointerstitial fibrosis. Little is known about prospective associations between TMAO and kidney outcomes, especially incident CKD. We hypothesized that higher plasma TMAO levels would be associated with higher risk of incident CKD and greater rate of kidney function decline.
    Methods: We included 10,564 participants from two community-based, prospective cohorts with estimated glomerular filtration rate (eGFR) ≥ 60 mL/min/1.73m2 to assess incident CKD. TMAO was measured using targeted mass spectrometry at baseline and one follow-up visit. Creatinine and Cystatin C were measured up to 4 times during follow-up and used to compute eGFR. Incident CKD was defined as an eGFR decline ≥ 30% from baseline and a resulting eGFR<60 ml/min/1.73 m2. Time-varying Cox models assessed the association of serial TMAO measures with incident CKD, adjusting for sociodemographic, lifestyle, diet, and cardiovascular disease risk factors. Linear mixed models assessed the association with annualized eGFR change in 10,009 participants with at least one follow-up eGFR measure without exclusions for baseline eGFR levels.
    Results: During a median follow-up of 9.4 years (interquartile range: 9.1-11.6 years), 979 incident CKD events occurred. Higher TMAO levels associated with higher risk of incident CKD (2nd to 5th vs. 1st quintile HR[95%CI]= 1.65 [1.22-2.23], 1.68 [1.26-2.25], 2.28 [1.72-3.02], and 2.24[1.68-2.98], respectively) and greater annualized eGFR decline ( 2nd to 5th vs. 1st quintile annualized eGFR change= -0.21 [-0.32, -0.09], -0.17 [-0.29, -0.05], -0.35 [-0.47, -0.22], and -0.43[-0.56, -0.30], respectively) with monotonic dose-response relationships. These associations were consistent across different racial/ethnic groups examined. The association with eGFR decline was similar to or larger than that seen for established CKD risk factors including diabetes, per 10 mmHg of higher systolic blood pressure, per 10 years of older age, and Black race.
    Conclusions: In community-based US adults, higher serial measures of plasma TMAO were associated with higher risk of incident CKD and greater annualized kidney function decline.
    Language English
    Publishing date 2024-04-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1085942-1
    ISSN 1533-3450 ; 1046-6673
    ISSN (online) 1533-3450
    ISSN 1046-6673
    DOI 10.1681/ASN.0000000000000344
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Lactic acidosis after allogeneic haematopoietic stem cell transplantation potentially related to letermovir.

    Manczak, Bérénice / Verdier, Marie-Clémence / Dewulf, Joseph P / Lemaitre, Florian / Haufroid, Vincent / Hantson, Philippe

    British journal of clinical pharmacology

    2023  Volume 89, Issue 5, Page(s) 1686–1689

    Abstract: ... SLCO1B1*5/*15 (c.521T>C homozygous carrier and c.388A>G heterozygous carrier) with a predicted ...

    Abstract A 53-year-old woman with a history of acute myeloid leukaemia received a second allogeneic haematopoietic stem cell transplant and was prescribed, among other medications, acyclovir and letermovir (480-mg daily oral dose) for prophylaxis of, respectively, herpes simplex and cytomegalovirus infection. The patient was admitted in the intensive care unit for dyspnoea and oliguria. Laboratory investigations revealed acute kidney injury but also a severe and progressive lactic acidosis. Liver function tests were within normal range. The combination of lactic acidosis, hypoglycaemia and acylcarnitine profile in plasma raised the suspicion of mitochondrial toxicity. Letermovir therapy was interrupted, and determination of plasma letermovir pharmacokinetics revealed a prolonged terminal half-life (38.7 h) that was not significantly influenced by continuous venovenous haemofiltration. Exploration for genetic polymorphisms revealed that the patient was SLCO1B1*5/*15 (c.521T>C homozygous carrier and c.388A>G heterozygous carrier) with a predicted nonfunctional organic anion transporting polypeptide 1B1 protein. The relationship between letermovir accumulation and development of lactic acidosis requires further observations.
    MeSH term(s) Female ; Humans ; Middle Aged ; Acidosis, Lactic/therapy ; Acidosis, Lactic/drug therapy ; Antiviral Agents/therapeutic use ; Cytomegalovirus Infections/drug therapy ; Acetates/pharmacokinetics ; Hematopoietic Stem Cell Transplantation/adverse effects ; Liver-Specific Organic Anion Transporter 1
    Chemical Substances letermovir (1H09Y5WO1F) ; Antiviral Agents ; Acetates ; SLCO1B1 protein, human ; Liver-Specific Organic Anion Transporter 1
    Language English
    Publishing date 2023-02-19
    Publishing country England
    Document type Case Reports
    ZDB-ID 188974-6
    ISSN 1365-2125 ; 0306-5251 ; 0264-3774
    ISSN (online) 1365-2125
    ISSN 0306-5251 ; 0264-3774
    DOI 10.1111/bcp.15686
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Trimethylamine N-oxide is associated with long-term mortality risk: the multi-ethnic study of atherosclerosis.

    Wang, Meng / Li, Xinmin S / Wang, Zeneng / de Oliveira Otto, Marcia C / Lemaitre, Rozenn N / Fretts, Amanda / Sotoodehnia, Nona / Budoff, Matthew / Nemet, Ina / DiDonato, Joseph A / Tang, Wai Hong Wilson / Psaty, Bruce M / Siscovick, David S / Hazen, Stanley L / Mozaffarian, Dariush

    European heart journal

    2023  Volume 44, Issue 18, Page(s) 1608–1618

    Abstract: Aims: Little is known about associations of trimethylamine N-oxide (TMAO), a novel gut microbiota-generated metabolite of dietary phosphatidylcholine and carnitine, and its changes over time with all-cause and cause-specific mortality in the general ... ...

    Abstract Aims: Little is known about associations of trimethylamine N-oxide (TMAO), a novel gut microbiota-generated metabolite of dietary phosphatidylcholine and carnitine, and its changes over time with all-cause and cause-specific mortality in the general population or in different race/ethnicity groups. The study aimed to investigate associations of serially measured plasma TMAO levels and changes in TMAO over time with all-cause and cause-specific mortality in a multi-ethnic community-based cohort.
    Methods and results: The study included 6,785 adults from the Multi-Ethnic Study of Atherosclerosis. TMAO was measured at baseline and year 5 using mass spectrometry. Primary outcomes were adjudicated all-cause mortality and cardiovascular disease (CVD) mortality. Secondary outcomes were deaths due to kidney failure, cancer, or dementia obtained from death certificates. Cox proportional hazards models with time-varying TMAO and covariates assessed the associations with adjustment for sociodemographics, lifestyles, diet, metabolic factors, and comorbidities. During a median follow-up of 16.9 years, 1704 participants died and 411 from CVD. Higher TMAO levels associated with higher risk of all-cause mortality [hazard ratio (HR): 1.12, 95% confidence interval (CI): 1.08-1.17], CVD mortality (HR: 1.09, 95% CI: 1.00-1.09), and death due to kidney failure (HR: 1.44, 95% CI: 1.25-1.66) per inter-quintile range, but not deaths due to cancer or dementia. Annualized changes in TMAO levels associated with higher risk of all-cause mortality (HR: 1.10, 95% CI: 1.05-1.14) and death due to kidney failure (HR: 1.54, 95% CI: 1.26-1.89) but not other deaths.
    Conclusion: Plasma TMAO levels were positively associated with mortality, especially deaths due to cardiovascular and renal disease, in a multi-ethnic US cohort.
    MeSH term(s) Adult ; Humans ; Risk Factors ; Biomarkers ; Methylamines/metabolism ; Cardiovascular Diseases ; Renal Insufficiency/etiology ; Atherosclerosis/complications ; Neoplasms/complications ; Dementia
    Chemical Substances trimethyloxamine (FLD0K1SJ1A) ; Biomarkers ; Methylamines
    Language English
    Publishing date 2023-03-08
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 603098-1
    ISSN 1522-9645 ; 0195-668X
    ISSN (online) 1522-9645
    ISSN 0195-668X
    DOI 10.1093/eurheartj/ehad089
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Assessing the impact of non-pharmaceutical interventions on SARS-CoV-2 transmission in Switzerland

    Lemaitre, Joseph C / Perez-Saez, Javier / Azman, Andrew S / Rinaldo, Andrea / Fellay, Jacques

    Swiss Medical Weekly ; ISSN 1424-3997

    2020  

    Keywords General Medicine ; covid19
    Language English
    Publisher EMH Swiss Medical Publishers, Ltd.
    Publishing country ch
    Document type Article ; Online
    DOI 10.4414/smw.2020.20295
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top