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1.
JAMA ; 330(9): 866-869, 2023 09 05.
Article in English | MEDLINE | ID: mdl-37548965

ABSTRACT

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.


Subject(s)
Language , Machine Learning , Medical Records , Medicine , Medical Records/standards , Medicine/methods , Medicine/standards , Computer Simulation
2.
Nat Prod Rep ; 37(8): 1122-1143, 2020 08 19.
Article in English | MEDLINE | ID: mdl-32364202

ABSTRACT

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.


Subject(s)
Biological Products/metabolism , Enzymes/metabolism , Protein Engineering , Algorithms , Biocatalysis , Biosynthetic Pathways , Combinatorial Chemistry Techniques , Directed Molecular Evolution , Recombination, Genetic
3.
Commun Chem ; 2(1)2019.
Article in English | MEDLINE | ID: mdl-32042928

ABSTRACT

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.

5.
J Org Chem ; 83(14): 7453-7458, 2018 07 20.
Article in English | MEDLINE | ID: mdl-29932340

ABSTRACT

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%.

6.
Matern Child Health J ; 22(5): 648-659, 2018 05.
Article in English | MEDLINE | ID: mdl-29445982

ABSTRACT

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.


Subject(s)
Child Health Services/organization & administration , Child Health Services/standards , Disabled Children , Family/psychology , Patient Care Planning/organization & administration , Patient-Centered Care , Professional-Family Relations , Program Evaluation , Adult , Child , Child, Preschool , Female , Health Services Needs and Demand , Humans , Male , Middle Aged , Patient Care Team , Pediatrics/standards , Power, Psychological
7.
J Am Med Inform Assoc ; 22(1): 223-35, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25324556

ABSTRACT

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.


Subject(s)
Health Care Costs , Software , Cost-Benefit Analysis , Humans , Treatment Outcome , Utah
9.
J Med Chem ; 54(19): 6888-904, 2011 Oct 13.
Article in English | MEDLINE | ID: mdl-21870878

ABSTRACT

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.


Subject(s)
Azetidines/chemical synthesis , Bronchodilator Agents/chemical synthesis , Diphenylacetic Acids/chemical synthesis , Pulmonary Disease, Chronic Obstructive/drug therapy , Receptor, Muscarinic M3/antagonists & inhibitors , Administration, Inhalation , Animals , Azetidines/chemistry , Azetidines/pharmacology , Bronchodilator Agents/chemistry , Bronchodilator Agents/pharmacology , CHO Cells , Cell Line , Cell Membrane Permeability , Cricetinae , Cricetulus , Diphenylacetic Acids/chemistry , Diphenylacetic Acids/pharmacology , Dogs , Female , Guinea Pigs , Hepatocytes/metabolism , Humans , In Vitro Techniques , Kinetics , Male , Microsomes, Liver/metabolism , Muscle Relaxation/drug effects , Muscle, Smooth/drug effects , Muscle, Smooth/physiology , Radioligand Assay , Rats , Receptor, Muscarinic M3/metabolism , Recombinant Proteins/antagonists & inhibitors , Recombinant Proteins/metabolism , Stereoisomerism , Structure-Activity Relationship , Trachea/drug effects , Trachea/physiology
10.
Bioorg Med Chem Lett ; 21(9): 2759-63, 2011 May 01.
Article in English | MEDLINE | ID: mdl-21075627

ABSTRACT

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.


Subject(s)
Adrenergic beta-2 Receptor Agonists , Drug Design , Muscarinic Antagonists , Pulmonary Disease, Chronic Obstructive/drug therapy , Administration, Inhalation , Adrenergic beta-2 Receptor Agonists/administration & dosage , Animals , Benzhydryl Compounds/administration & dosage , Cresols/administration & dosage , Drug Therapy, Combination , Guinea Pigs , Molecular Structure , Muscarinic Antagonists/administration & dosage , Phenylpropanolamine/administration & dosage , Tolterodine Tartrate
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