Sign in

Jacques Murray Leech

@jacquesml.bsky.social
33 followers 45 following 6 posts

Genetics reseacher at University of Exeter

PostsRepliesMedia
Reposted by Jacques Murray Leech
ADA Professional Publications @adapubs.bsky.social · 26/08/2026
Incorporating a type 1 diabetes genetic risk score into routine maturity-onset diabetes of the young (MODY) gene panel testing is feasible and clinically valuable. Read here ➡️ doi.org/10.2337/dc26-1081
This image is an infographic titled "T1DGRS Shows Clinical Utility in MODY Genetic Testing Pathways." It explains the integration of T1DGRS (type 1 diabetes genetic risk score) in testing pathways for MODY (maturity‑onset diabetes of the young). The infographic details that out of 1,129 MODY referrals using a 10‑SNP T1DGRS, 1 in 5 referred patients have atypical T1D. A bar chart signifies excess genetic risk in 1 referred patient. It also highlights outcomes of genetic testing, mentioning 228 typical (20%) and 901 atypical (80%) results for T1D. A pie chart shows that 16% of unsolved MODY cases were identified as likely T1D, using age‑specific T1DGRS. It lists age‑dependent T1DGRS utility for different groups: children (AUC 0.81), adolescents (AUC 0.87), and adults (AUC 0.55).
032
Jacques Murray Leech @jacquesml.bsky.social · 19/08/2026
Happy to see our recent work out in Diabetes Care. Adding a T1D genetic risk score to testing for monogenic diabetes identified atypical T1D in around 1/5 people with a negative test, demonstrating potential for clinical translation. #MODY #T1D #Diabetes doi.org/10.2337/dc26...
doi.org
Clinical Utility of a Type 1 Diabetes Genetic Risk Score Measured as Part of MODY Genetic Testing
OBJECTIVE. To evaluate the clinical utility of incorporating a type 1 diabetes genetic risk score (T1DGRS) into monogenic diabetes gene panel testing for i
012
Reposted by Jacques Murray Leech
Sarah Flanagan @sarah-flanagan.bsky.social · 26/05/2026
Excited to share our new paper in @eBioMedicine We used routinely collected NGS data to detect low-level mosaic variants in #congenitalhyperinsulinism. Variants at 1–8% VAF can be found in blood, but need careful validation to confirm true positives. sciencedirect.com/science/arti...
sciencedirect.com
Low-level mosaic variants causing the pancreatic disease congenital hyperinsulinism can be detected from blood DNA
A substantial proportion of individuals with a well-defined monogenic disorder remain without a genetic diagnosis. Low-level mosaic pathogenic variant…
011
Reposted by Jacques Murray Leech
Luke Sharp @luke-sharp.bsky.social · 21/05/2026
Thank you to #JCEM for selecting our paper “Population Prevalence, Penetrance, and Mortality for Genetically Confirmed MODY” as your featured article !!! #MODY
031
Reposted by Jacques Murray Leech
Luke Sharp @luke-sharp.bsky.social · 20/04/2026
Now out in @ebiomedicine.bsky.social !!! Excited to share our work using a genotype-first approach to assess monogenic lipodystrophy in a large population cohort highlighting the disease’s underdiagnosis and health impacts. www.thelancet.com/journals/ebi...
thelancet.com
Genotype-first approach reveals monogenic lipodystrophy is underdiagnosed, with health and mortality risks
Monogenic lipodystrophy is more common than currently recognised and most cases remain undiagnosed despite significant cardiometabolic and mortality risks. These findings highlight the value of genoty...
041
Reposted by Jacques Murray Leech
Diabetologia @diabetologiajnl.bsky.social · 26/03/2026
In GCK-MODY, polygenic background modifies clinical presentation despite high penetrance. Polygenic risk influences who crosses key diagnostic HbA1c thresholds. Monogenic + polygenic risk both matter. #Diabetes #Genetics #MODY #PrecisionMedicine link.springer.com/article/10.1... 🔓
link.springer.com
Polygenic background contributes to GCK-MODY clinical presentation and glycaemic variability - Diabetologia
Aims/hypothesis GCK-MODY (glucokinase MODY) causes lifelong, mild hyperglycaemia with high penetrance. Variation in glycaemic phenotype among carriers remains unexplained. We hypothesised that polygen...
162
Jacques Murray Leech @jacquesml.bsky.social · 20/03/2026
Happy to share our new work showing how polygenic background impacts GCK-MODY, modifying glycaemia and influencing whether individuals cross key diagnostic thresholds, now published in @diabetologiajnl.bsky.social #Genetics #Diabetes link.springer.com/article/10.1...
link.springer.com
Polygenic background contributes to GCK-MODY clinical presentation and glycaemic variability - Diabetologia
Aims/hypothesis GCK-MODY (glucokinase MODY) causes lifelong, mild hyperglycaemia with high penetrance. Variation in glycaemic phenotype among carriers remains unexplained. We hypothesised that polygen...
052
Reposted by Jacques Murray Leech
Diabetologia @diabetologiajnl.bsky.social · 12/03/2026
Systematic analysis of loss-of-function variants across MODY genes demonstrates gene-specific effects and expands the spectrum of INS variants causing MODY #MODY #Insulin #Genetics #DiabetesResearch link.springer.com/article/10.1... 🔓
link.springer.com
Systematic analysis of loss-of-function variants across MODY genes demonstrates gene-specific effects and expands the spectrum of INS variants causing MODY - Diabetologia
Aims/hypothesis Accurate interpretation of loss-of-function (LOF) variants in MODY genes is essential for diagnosis but remains challenging, particularly for variants that are predicted to escape nons...
053
Reposted by Jacques Murray Leech
Harry Wright @hiwwright.bsky.social · 06/02/2026
Excited to share my first preprint on federated conditional analysis of rare single variant and aggregate association tests across six genetically-inferred ancestry groups in All of Us and UK Biobank doi.org/10.64898/202...
12211
Reposted by Jacques Murray Leech
Luke Sharp @luke-sharp.bsky.social · 26/11/2025
Our new paper “MODY is prevalent in later-onset diabetes and has potential for targeted therapy but is challenging to identify” is out now in Diabetes !!! #diabetes #MODY doi.org/10.2337/db25...
doi.org
MODY Is Prevalent in Later-Onset Diabetes and Has Potential for Targeted Therapy but Is Challenging to Identify
Maturity onset diabetes of the young (MODY) can present after the age of 40 years, but its prevalence and clinical characteristics, and the utility of simp
042
Reposted by Jacques Murray Leech
Luke Sharp @luke-sharp.bsky.social · 03/11/2025
Excited to announce the acceptance and publication of our paper titled “Population prevalence, penetrants, and mortality for genetically confirmed MODY” in JCEM: doi.org/10.1210/clin... #MODY #monogenicdiabetes
doi.org
Population prevalence, penetrance, and mortality for genetically confirmed MODY
AbstractContext. Diagnosing Maturity-Onset Diabetes of the Young (MODY) is clinically important for treatment and prognosis. However, phenotype-based studi
094
Reposted by Jacques Murray Leech
James Russ-Silsby @jamesr-s.bsky.social · 15/09/2025
I’m excited to share the 2 newest Neonatal diabetes genes: RNU4ATAC and RNU6ATAC. These genes encode snRNA components of the minor spliceosome and biallelic variants in them cause monogenic autoimmune diabetes. If you are at #EASD, come to Matt Johnson’s talk Tuesday @4pm in Milan hall to hear more.
medrxiv.org
The minor spliceosome is a master immune regulator
Pathogenic variants in non-coding genes are emerging as critical contributors to human rare diseases. We identified 19 individuals with early-onset diabetes (diagnosed <5 years) and additional clinica...
067
Jacques Murray Leech @jacquesml.bsky.social · 09/09/2025
Now out in @natmetabolism.nature.com! Excited to share our work showing how common genetic changes shape how diabetes presents in MODY (Maturity-Onset Diabetes of the Young). Our findings highlight the growing overlap between monogenic and polygenic forms of diabetes. www.nature.com/articles/s42...
nature.com
Common genetic variants modify disease risk and clinical presentation in monogenic diabetes - Nature Metabolism
In clinical and population-based cohorts, a strong contribution of polygenic risk for type 2 diabetes (T2D) significantly modifies the onset and phenotypic variability of maturity-onset diabetes of th...
163
Reposted by Jacques Murray Leech
Nature Metabolism @natmetabolism.nature.com · 09/09/2025
bit.ly
Polygenic determinants of monogenic diabetes
Nature Metabolism, Published online: 09 September 2025; doi:10.1038/s42255-025-01380-0In a new study, the polygenic background of type 2 diabetes (T2D) is found to determine the risk of diabetes associated with so-called monogenic forms of β-cell diabetes, as well as the age at onset and severity of diabetes.
032
Reposted by Jacques Murray Leech
Nature Metabolism @natmetabolism.nature.com · 09/09/2025
bit.ly
Common genetic variants modify disease risk and clinical presentation in monogenic diabetes
Nature Metabolism, Published online: 09 September 2025; doi:10.1038/s42255-025-01372-0In clinical and population-based cohorts, a strong contribution of polygenic risk for type 2 diabetes (T2D) significantly modifies the onset and phenotypic variability of maturity-onset diabetes of the young (MODY). This polygenic T2D burden may also account for MODY-like individuals without identified monogenic causes.
032
Reposted by Jacques Murray Leech
Aparajita Sriram @aparajita-sriram.bsky.social · 27/08/2025
Our paper is now out on Diabetes! diabetesjournals.org/diabetes/art...
diabetesjournals.org
Rare Variants in NEUROD1 and PDX1 Are Low-Penetrance Causes of MODY, Whereas Those in APPL1 and WFS1 Are Not Associated With MODY
An accurate genetic diagnosis of maturity-onset diabetes of the young (MODY) is critical for personalized treatment. To avoid misdiagnosis, only genes with
034
Jacques Murray Leech @jacquesml.bsky.social · 11/08/2025
New preprint out now! We show polygenic background shapes GCK-MODY clinical presentation. In >1,000 cases, higher polygenic risk increased the chance of exceeding diagnostic diabetes thresholds, highlighting how monogenic & polygenic factors jointly shape disease. #Genetics
196
Reposted by Jacques Murray Leech
Diabetologia @diabetologiajnl.bsky.social · 22/07/2025
Global perspectives on #MonogenicDiabetes: review explores recent advances, global diagnostic challenges and promising future directions—from genomic equity to innovative therapies. #GlobalHealth link.springer.com/article/10.1... 🔓
link.springer.com
Global perspectives on monogenic forms of diabetes - Diabetologia
Monogenic forms of diabetes represent an uncommon but very heterogeneous subset of the disease, with variable associated clinical features and key differences in treatment options. In this review, we ...
094
Reposted by Jacques Murray Leech
medRxivpreprint @medrxivpreprint.bsky.social · 01/07/2025
Population prevalence, penetrance, and mortality for genetically confirmed MODY www.medrxiv.org/content/10.1101/202…
034
Reposted by Jacques Murray Leech
Luke Sharp @luke-sharp.bsky.social · 19/06/2025
MODY is prevalent in later onset diabetes. Really proud to announce the release of a preprint of our paper assessing MODY in people diagnosed with diabetes later in life!! #MonogenicDiabetes
066
Reposted by Jacques Murray Leech
Aparajita Sriram @aparajita-sriram.bsky.social · 04/06/2025
Excited to share the preprint of our paper (my first paper!) looking at limited evidence MODY genes. We use rare variant burden testing and one of the largest MODY cohorts to evaluate the pathogenicity of these genes. This evidence can help inform clinical guidelines in MODY genetic testing!
034
Reposted by Jacques Murray Leech
medRxivpreprint @medrxivpreprint.bsky.social · 21/02/2025
Common Genetic Variants Modify Disease Risk and Clinical Presentation in Monogenic Diabetes www.medrxiv.org/content/10.1101/202…
001