John McDermott

ORCID: 0000-0002-5220-8837
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About
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Research Areas
  • Pharmacogenetics and Drug Metabolism
  • Pharmaceutical studies and practices
  • Viral Infections and Vectors
  • Health Systems, Economic Evaluations, Quality of Life
  • Neonatal and Maternal Infections
  • Trypanosoma species research and implications
  • Growth Hormone and Insulin-like Growth Factors
  • Genomics and Rare Diseases
  • Thyroid Disorders and Treatments
  • Sleep and related disorders
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Diabetes Management and Research
  • Drug Solubulity and Delivery Systems
  • Diabetes and associated disorders
  • Vector-Borne Animal Diseases
  • SARS-CoV-2 and COVID-19 Research
  • Mosquito-borne diseases and control
  • Antibiotics Pharmacokinetics and Efficacy
  • Genetics and Neurodevelopmental Disorders
  • Genetic Associations and Epidemiology
  • Iron Metabolism and Disorders
  • Neonatal Respiratory Health Research
  • BRCA gene mutations in cancer
  • Adrenal Hormones and Disorders
  • Neuroendocrine Tumor Research Advances

Manchester University NHS Foundation Trust
2015-2025

University of Manchester
2013-2025

St Mary's Hospital
2017-2025

St Mary's Hospital
2017-2025

St. Mary's Hospital
2017-2025

Genomics (United Kingdom)
2021-2025

Connolly Hospital Blanchardstown
2015-2024

Royal College of Surgeons in Ireland
2012-2024

Manchester University
2024

St. Mary’s Hospital
2024

Mucopolysaccharidosis type IIIA (MPSIIIA) is a lysosomal storage disorder caused by mutations in N-sulfoglucosamine sulfohydrolase (SGSH), resulting heparan sulfate (HS) accumulation and progressive neurodegeneration. There are no treatments. We previously demonstrated improved neuropathology MPSIIIA mice using lentiviral vectors (LVs) overexpressing SGSH wild-type (WT) hematopoietic stem cell (HSC) transplants (HSCTs), achieved via donor monocyte/microglial engraftment the brain. However,...

10.1038/mt.2013.141 article EN cc-by-nc-sa Molecular Therapy 2013-06-20

CTP:phosphoethanolamine cytidylyltransferase (ET), encoded by PCYT2, is the rate-limiting enzyme for phosphatidylethanolamine synthesis via CDP-ethanolamine pathway. Phosphatidylethanolamine one of most abundant membrane lipids and particularly enriched in brain. We identified five individuals with biallelic PCYT2 variants clinically characterized global developmental delay regression, spastic para- or tetraparesis, epilepsy progressive cerebral cerebellar atrophy. Using patient fibroblasts...

10.1093/brain/awz291 article EN cc-by Brain 2019-10-01

Aminoglycosides are widely used antibiotics with notable side effects, such as nephrotoxicity, vestibulotoxicity, and sensorineural hearing loss (cochleotoxicity). MT‐RNR1 is a gene that encodes the 12s rRNA subunit mitochondrial homologue of prokaryotic 16s rRNA. Some variants (i.e., m.1095T>C; m.1494C>T; m.1555A>G) more closely resemble bacterial result in increased risk aminoglycoside‐induced loss. Use aminoglycosides should be avoided individuals an variant associated unless...

10.1002/cpt.2309 article EN Clinical Pharmacology & Therapeutics 2021-05-25

Aminoglycosides are commonly prescribed antibiotics used for the treatment of neonatal sepsis. The MT-RNR1 m.1555A>G variant predisposes to profound aminoglycoside-induced ototoxicity (AIO). Current genotyping approaches take several days, which is unfeasible in acute settings. To develop a rapid point-of-care test (POCT) before implementation this technology setting guide antibiotic prescribing and avoid AIO. This pragmatic prospective trial recruited neonates admitted 2 large intensive...

10.1001/jamapediatrics.2022.0187 article EN cc-by JAMA Pediatrics 2022-03-21

Nicotinamide adenine dinucleotide (NAD) is essential for embryonic development. To date, biallelic loss-of-function variants in 3 genes encoding nonredundant enzymes of the NAD de novo synthesis pathway - KYNU, HAAO, and NADSYN1 have been identified humans with congenital malformations defined as deficiency disorder (CNDD). Here, we 13 further individuals predicted to be damaging, phenotypes ranging from multiple severe complete absence malformation. Enzymatic assessment variant...

10.1172/jci174824 article EN cc-by Journal of Clinical Investigation 2024-02-14

Although regular exercise is a critical component of the management type 2 diabetes, many patients do not meet their targets. Lack associated with obesity and adverse cardiovascular outcomes.We aimed to assess habits in obese Irish diabetes determine if are adhering guidelines identify perceived barriers this group.A cross-sectional study attending routine outpatient clinics at our institution, public teaching hospital located on outskirts Dublin City.A total 145 were administered...

10.1093/qjmed/hct075 article EN QJM 2013-03-23

Mucopolysaccharidosis IIIB is a paediatric lysosomal storage disease caused by deficiency of the enzyme α-N-acetylglucosaminidase (NAGLU), involved in degradation glycosaminoglycan heparan sulphate. Absence NAGLU leads to accumulation partially degraded sulphate within lysosomes and extracellular matrix, giving rise severe CNS degeneration with progressive cognitive impairment behavioural problems. There are no therapies. Haematopoietic stem cell transplant shows great efficacy related...

10.1093/brain/awx311 article EN Brain 2017-11-01

Hypogonadism, usually hypogonadotropic in origin, is the most common nondiabetic endocrinopathy hereditary hemochromatosis (HH). Early studies, evaluating small numbers of patients with advanced HH, report prevalence rates 10-100%. The clinical presentation HH has changed recent years as a result increased awareness and screening. We assessed hypogonadism large group diagnosed single center over past 20 yr, period follow-up spanning time before after widespread screening was introduced HFE...

10.1210/jc.2004-0980 article EN The Journal of Clinical Endocrinology & Metabolism 2005-04-01

PurposeA few de novo missense variants in the cytoplasmic FMRP-interacting protein 2 (CYFIP2) gene have recently been described as a novel cause of severe intellectual disability, seizures, and hypotonia 18 individuals, with p.Arg87 substitutions majority.MethodsWe assembled data from 19 newly identified all previously published individuals CYFIP2 variants. By structural modeling investigation WAVE-regulatory complex (WRC)-mediated actin polymerization six patient fibroblast lines we...

10.1038/s41436-020-01011-x article EN cc-by-nc-sa Genetics in Medicine 2020-11-05

Understanding the effectiveness of infection control methods in reducing and preventing SARS-CoV-2 transmission healthcare settings is high importance. We sequenced genomes for patients workers (HCWs) across multiple geographically distinct UK hospitals, obtaining 173 high-quality genomes. integrated patient movement staff location data into analysis viral genome to understand spatial temporal dynamics transmission. identified eight contact clusters (PCC) with significantly increased...

10.7554/elife.65453 article EN cc-by eLife 2021-03-17

Several healthcare organizations have developed pre-emptive pharmacogenetic testing programs, where is undertaken prior to the prescription of a medicine. This review characterizes barriers and facilitators which influenced development these programs. A bidirectional citation searching strategy identified relevant publications before standardized data extraction approach was applied. Publications were grouped by program synthesis using Consolidated Framework for Implementation Research...

10.3389/fmed.2022.945352 article EN cc-by Frontiers in Medicine 2022-08-18

Rationale: Despite the increased recognition of TBX4 (T-BOX transcription factor 4)-associated pulmonary arterial hypertension (PAH), genotype–phenotype associations are lacking and may provide important insights. Objectives: To compile functionally characterize all variants reported to date undertake a comprehensive genotype-phenotype analysis. Methods: We assembled multicenter cohort 137 patients harboring monoallelic assessed pathogenicity missense variation (n = 42) using novel...

10.1164/rccm.202203-0485oc article EN cc-by-nc-nd American Journal of Respiratory and Critical Care Medicine 2022-07-19

Pharmacogenetics can impact patient care and outcomes through personalizing the selection of medicines, resulting in improved efficacy a reduction harmful side effects. Despite existence compelling clinical evidence international guidelines highlighting benefits pharmacogenetics practice, implementation within National Health Service United Kingdom is limited. An important barrier to overcome development IT solutions that support integration pharmacogenetic data into health systems. This...

10.2196/49230 article EN cc-by Journal of Medical Internet Research 2024-05-13

Abstract South Asians develop type 2 diabetes (T2D) early in life and often with normal body mass index (BMI). However, reasons for this are poorly understood because genetic research is largely focused on European ancestry groups. We used recently derived multi-ancestry partitioned polygenic scores (pPSs) to elucidate underlying etiological pathways British Pakistani Bangladeshi individuals T2D ( n = 11,678) gestational mellitus (GDM) 1,965) the Genes & Health study 50,556). Beta cell...

10.1038/s41591-024-03317-8 article EN cc-by Nature Medicine 2024-11-26
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