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1.
JAMA ; 330(9): 866-869, 2023 09 05.
Artigo em Inglês | MEDLINE | ID: mdl-37548965

RESUMO

Importance: There is increased interest in and potential benefits from using large language models (LLMs) in medicine. However, by simply wondering how the LLMs and the applications powered by them will reshape medicine instead of getting actively involved, the agency in shaping how these tools can be used in medicine is lost. Observations: Applications powered by LLMs are increasingly used to perform medical tasks without the underlying language model being trained on medical records and without verifying their purported benefit in performing those tasks. Conclusions and Relevance: The creation and use of LLMs in medicine need to be actively shaped by provisioning relevant training data, specifying the desired benefits, and evaluating the benefits via testing in real-world deployments.


Assuntos
Idioma , Aprendizado de Máquina , Prontuários Médicos , Medicina , Prontuários Médicos/normas , Medicina/métodos , Medicina/normas , Simulação por Computador
2.
Nat Prod Rep ; 37(8): 1122-1143, 2020 08 19.
Artigo em Inglês | MEDLINE | ID: mdl-32364202

RESUMO

Covering: 2000 to 2020 Natural products and their derivatives are commercially important medicines, agrochemicals, flavors, fragrances, and food ingredients. Industrial strategies to produce these structurally complex molecules encompass varied combinations of chemical synthesis, biocatalysis, and extraction from natural sources. Interest in engineering natural product biosynthesis began with the advent of genetic tools for pathway discovery. Genes and strains can now readily be synthesized, mutated, recombined, and sequenced. Enzyme engineering has succeeded commercially due to the development of genetic methods, analytical technologies, and machine learning algorithms. Today, engineered biosynthetic enzymes from organisms spanning the tree of life are used industrially to produce diverse molecules. These biocatalytic processes include single enzymatic steps, multienzyme cascades, and engineered native and heterologous microbial strains. This review will describe how biosynthetic enzymes have been engineered to enable commercial and near-commercial syntheses of natural products and their analogs.


Assuntos
Produtos Biológicos/metabolismo , Enzimas/metabolismo , Engenharia de Proteínas , Algoritmos , Biocatálise , Vias Biossintéticas , Técnicas de Química Combinatória , Evolução Molecular Direcionada , Recombinação Genética
3.
J Org Chem ; 83(14): 7453-7458, 2018 07 20.
Artigo em Inglês | MEDLINE | ID: mdl-29932340

RESUMO

A wild-type Baeyer-Villiger monooxygenase was engineered to overcome numerous liabilities in order to mediate a commercial oxidation of pyrmetazole to esomeprazole, using air as the terminal oxidant in an almost exclusively aqueous reaction matrix. The developed enzyme and process compares favorably to the incumbent Kagan inspired chemocatalytic oxidation, as esomeprazole was isolated in 87% yield, in >99% purity, with an enantiomeric excess of >99%.

4.
Matern Child Health J ; 22(5): 648-659, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29445982

RESUMO

Introduction This paper describes the care coordination training program and results of an evaluation from its pilot in seven states. Despite the importance of practice-based care coordination, only 42.3% of children with special health care needs (CYSHCN) met all needed components of care coordination as defined by the Maternal Child Health Bureau. Recognizing that children with medically complex conditions often have lower rates of achieving care coordination within a medical home, the Region 4 Midwest Genetics Collaborative worked with families to develop a training to empower families in care coordination. The Care Coordination: Empowering Families(CCEF) training provides families with the knowledge, tools, and resources to engage with health, education and family support systems. This article gives an overview of the training and comprehensive evaluation. Methods Participants were family caregivers of children with genetic conditions and other special health care needs recruited in one of seven pilot states. Evaluation data were collected from 190 participants prior to and immediately following the training. An additional follow-up assessment one full year post training was completed by 80 participants (a response rate of 42%). Results Families who attended the training report being the primary source of care coordination for their children and 83.7% see their role in their child's healthcare changing as a result of the training. The findings suggest that peer support and communication with providers increased as a result of the training over the course of the study. The data suggest that the training impacted how the family interacts with the child's doctor, including initiating conversations to prepare their child for transition to adult health care. Further, families report system-level improvements 1 year later compared to the pre-training assessment. Discussion CCEF training is a promising practice for facilitating medical home use among CYSHCN.


Assuntos
Serviços de Saúde da Criança/organização & administração , Serviços de Saúde da Criança/normas , Crianças com Deficiência , Família/psicologia , Planejamento de Assistência ao Paciente/organização & administração , Assistência Centrada no Paciente , Relações Profissional-Família , Avaliação de Programas e Projetos de Saúde , Adulto , Criança , Pré-Escolar , Feminino , Necessidades e Demandas de Serviços de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Equipe de Assistência ao Paciente , Pediatria/normas , Poder Psicológico
5.
Bioorg Med Chem Lett ; 21(9): 2759-63, 2011 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-21075627

RESUMO

This paper describes the successful design and development of dual pharmacology ß-2 agonists-M3 antagonists, for the treatment of chronic obstructive pulmonary disorder using the principles of 'inhalation by design'. A key feature of this work is the combination of balanced potency and pharmacodynamic duration with desirable pharmacokinetic and material properties, whilst keeping synthetic complexity to a minimum.


Assuntos
Agonistas de Receptores Adrenérgicos beta 2 , Desenho de Fármacos , Antagonistas Muscarínicos , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Administração por Inalação , Agonistas de Receptores Adrenérgicos beta 2/administração & dosagem , Animais , Compostos Benzidrílicos/administração & dosagem , Cresóis/administração & dosagem , Quimioterapia Combinada , Cobaias , Estrutura Molecular , Antagonistas Muscarínicos/administração & dosagem , Fenilpropanolamina/administração & dosagem , Tartarato de Tolterodina
6.
Commun Chem ; 2(1)2019.
Artigo em Inglês | MEDLINE | ID: mdl-32042928

RESUMO

One-pot reactions that combine non-enzymatic and biocatalytic transformations represent an emerging strategy in chemical synthesis. Some of the most powerful chemoenzymatic methodologies, although uncommon, are those that form a carbon-carbon (C-C) bond and a stereocenter at one of the reacting carbons, thereby streamlining traditional retrosynthetic disconnections. Here we report the one-pot, chemoenzymatic conversion of amides to enantioenriched alcohols. This transformation combines a nickel-catalyzed Suzuki-Miyaura coupling of amides in aqueous medium with an asymmetric, biocatalytic reduction to provide diarylmethanol derivatives in high yields and enantiomeric excesses. The synthetic utility of this platform is underscored by the formal syntheses of both antipodes of the pharmaceutical orphenadrine, which rely on ketoreductase enzymes that instill complementary stereoselectivities. We provide an explanation for the origins of stereoselectivity based on an analysis of the enzyme binding pockets.

8.
J Am Med Inform Assoc ; 22(1): 223-35, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25324556

RESUMO

OBJECTIVE: To develop expeditiously a pragmatic, modular, and extensible software framework for understanding and improving healthcare value (costs relative to outcomes). MATERIALS AND METHODS: In 2012, a multidisciplinary team was assembled by the leadership of the University of Utah Health Sciences Center and charged with rapidly developing a pragmatic and actionable analytics framework for understanding and enhancing healthcare value. Based on an analysis of relevant prior work, a value analytics framework known as Value Driven Outcomes (VDO) was developed using an agile methodology. Evaluation consisted of measurement against project objectives, including implementation timeliness, system performance, completeness, accuracy, extensibility, adoption, satisfaction, and the ability to support value improvement. RESULTS: A modular, extensible framework was developed to allocate clinical care costs to individual patient encounters. For example, labor costs in a hospital unit are allocated to patients based on the hours they spent in the unit; actual medication acquisition costs are allocated to patients based on utilization; and radiology costs are allocated based on the minutes required for study performance. Relevant process and outcome measures are also available. A visualization layer facilitates the identification of value improvement opportunities, such as high-volume, high-cost case types with high variability in costs across providers. Initial implementation was completed within 6 months, and all project objectives were fulfilled. The framework has been improved iteratively and is now a foundational tool for delivering high-value care. CONCLUSIONS: The framework described can be expeditiously implemented to provide a pragmatic, modular, and extensible approach to understanding and improving healthcare value.


Assuntos
Custos de Cuidados de Saúde , Software , Análise Custo-Benefício , Humanos , Resultado do Tratamento , Utah
11.
J Med Chem ; 54(19): 6888-904, 2011 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-21870878

RESUMO

A novel tertiary amine series of potent muscarinic M(3) receptor antagonists are described that exhibit potential as inhaled long-acting bronchodilators for the treatment of chronic obstructive pulmonary disease. Geminal dimethyl functionality present in this series of compounds confers very long dissociative half-life (slow off-rate) from the M(3) receptor that mediates very long-lasting smooth muscle relaxation in guinea pig tracheal strips. Optimization of pharmacokinetic properties was achieved by combining rapid oxidative clearance with targeted introduction of a phenolic moiety to secure rapid glucuronidation. Together, these attributes minimize systemic exposure following inhalation, mitigate potential drug-drug interactions, and reduce systemically mediated adverse events. Compound 47 (PF-3635659) is identified as a Phase II clinical candidate from this series with in vivo duration of action studies confirming its potential for once-daily use in humans.


Assuntos
Azetidinas/síntese química , Broncodilatadores/síntese química , Ácidos Difenilacéticos/síntese química , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Receptor Muscarínico M3/antagonistas & inibidores , Administração por Inalação , Animais , Azetidinas/química , Azetidinas/farmacologia , Broncodilatadores/química , Broncodilatadores/farmacologia , Células CHO , Linhagem Celular , Permeabilidade da Membrana Celular , Cricetinae , Cricetulus , Ácidos Difenilacéticos/química , Ácidos Difenilacéticos/farmacologia , Cães , Feminino , Cobaias , Hepatócitos/metabolismo , Humanos , Técnicas In Vitro , Cinética , Masculino , Microssomos Hepáticos/metabolismo , Relaxamento Muscular/efeitos dos fármacos , Músculo Liso/efeitos dos fármacos , Músculo Liso/fisiologia , Ensaio Radioligante , Ratos , Receptor Muscarínico M3/metabolismo , Proteínas Recombinantes/antagonistas & inibidores , Proteínas Recombinantes/metabolismo , Estereoisomerismo , Relação Estrutura-Atividade , Traqueia/efeitos dos fármacos , Traqueia/fisiologia
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