Family History of Diabetes and Clinical Characteristics in Children at Diagnosis of Type 1 Diabetes
Hedlund E, Tojjar J, Lilja L, Elding Larsson H, Forsander G, Ludvigsson J, Samuelsson U, Marcus C, NorstrΓΆm F, Persson M, Carlsson A.
Physician Β· Scientist Β· Innovator
MD Β· PhD Β· ECFMG Certified
Physician-scientist trained at Lund University and UCLA β combining direct patient care across family medicine and ophthalmology with rigorous research to advance our understanding of diabetes and retinal disease.

Dr. Jasaman (Jasmin) Tojjar is a physician-scientist whose career spans two continents, weaving together clinical medicine, translational research, and healthcare innovation. She holds both an MD and PhD from Lund University β ranked #72 globally (QS 2026) and home to Sweden's most competitive medical program, consistently requiring the highest admission scores nationally β and completed a clinical research fellowship at UCLA's Jules Stein Eye Institute and Doheny Eye Institute, one of the world's premier ophthalmic research centers.
Her doctoral thesis, "Aspects of Sex Differences in Type 1 Diabetes," used Swedish nationwide population-based cohorts to reveal how biological sex influences diabetes onset, autoimmunity patterns, and clinical outcomes in children β findings published in Diabetes Care (Impact Factor: 16.6), the most-cited clinical diabetes journal and flagship publication of the American Diabetes Association. At UCLA, she expanded into advanced retinal imaging and diabetic retinopathy under Prof. SriniVas R. Sadda and Prof. David Sarraf β performing clinical assessments and ophthalmic imaging in retinal clinics, including swept-source OCT angiography and ultra-widefield fundus photography, and conducting research that bridges her diabetes expertise with ophthalmology through the lens of microvascular disease.
Beyond research, Dr. Tojjar has maintained continuous clinical involvement throughout her career β from performing patient assessments in UCLA's retinal clinics to supervised clinical training in a rural Arizona family medicine clinic, where she worked alongside physicians and saw patients at the Regional Center for Border Health. She held an active Arizona Medical Board Transitional Training Permit (R81155) during this period. This combination of hands-on patient care and population-level research informs her approach to clinical medicine.
Born and raised in Lund, Sweden, Dr. Tojjar graduated from Katedralskolan β widely recognized as Scandinavia's oldest school, founded in 1085. A dedicated educator and leader, she has served on multiple innovation boards including LU Innovation, LU Ventures (formerly known as LU Holding), Medicon Bridge, and the MultiHelix Think Tank, mentored junior researchers at both UCLA and Lund, supervised medical students from the University of Arizona College of Medicine during her Arizona clinical training, and taught over 200 medical students annually as a lecturer in physiology and histology. She speaks seven languages and is ECFMG-certified.
A career built across two continents, driven by a personal connection to diabetes and a commitment to translating research into clinical impact.
Spanning diabetes and ophthalmology β connected by a shared focus on understanding disease mechanisms through data-driven, population-level approaches.
Population-based studies of 3,645+ Swedish children investigating how biological sex influences age at diagnosis, HLA genotype, autoantibody profiles, and clinical presentation in T1D.
Advanced retinal phenotyping using swept-source OCT angiography, ultra-widefield imaging, and fractal analysis to characterize microvascular changes in diabetic retinopathy and inherited retinal diseases.
Study of 11,050 children exploring heredity, parental diabetes, and childhood metabolic risk β including the impact of parental T1D and T2D on childhood obesity prevalence.
Registry-based research leveraging Sweden's comprehensive national health databases for large-scale population studies. Experience with cohort design, HLA genotyping, and autoantibody profiling.
Nationwide study of 20,559 Swedish women examining statin use and breast cancer survival β demonstrating expertise in pharmacoepidemiological methods and registry data analysis.
Experience with AI-assisted clinical decision support for diabetes management, combining medical expertise with technology to improve treatment outcomes.
Published in leading journals including Diabetes Care (Impact Factor: 16.6, the most-cited clinical diabetes journal worldwide). 150+ citations across seven peer-reviewed publications spanning diabetes, ophthalmology, and cancer epidemiology.

Hedlund E, Tojjar J, Lilja L, Elding Larsson H, Forsander G, Ludvigsson J, Samuelsson U, Marcus C, NorstrΓΆm F, Persson M, Carlsson A.
Feo A, Tojjar J, Sarraf D.
Corradetti G, Verma A, Tojjar J, Almidani L, Oncel D, Emamverdi M, Bradley A, Lindenberg S, Nittala MG, Sadda SR.
Tojjar J, Cervin M, Hedlund E, Brahimi Q, Forsander G, Elding Larsson H, Ludvigsson J, Samuelsson U, Marcus C, Persson M, Carlsson A.
Magesan K, Gnanaraj R, Tojjar J, Amose T, Alagorie AR, Mahalingam M, Sen P, Verma A, Sadda SR.
Tojjar J, NorstrΓΆm F, MylΓ©us A, Carlsson A.
Borgquist S, Broberg P, Tojjar J, Olsson H.
Invited talks, oral presentations, and poster presentations at major international conferences in ophthalmology, diabetes, and retinal research.
Additionally co-authored on 4 poster presentations at ARVO 2023 covering anti-VEGF outcomes in neovascular age-related macular degeneration.
Over 20 competitive awards and research grants from foundations and institutions across Sweden and the United States.
Research Grants & Fellowships
Founded by Nobel laureates, under the patronage of the King of Sweden Β· ~32 fellows selected annually Β· 2022
Competitive grant for top Swedish & Italian citizens Β· 2022
Prestigious grant for vision-related research Β· 2021
International research collaborations β UCLA Β· 2020
Year-long advanced research training for top students Β· 2015β2016
Competitive 3-month lab placements Β· 2013, 2014
Innovation & Academic Honors
Sweden's VINNOVA innovation agency β AI-based diabetes decision support
All faculties at Lund University Β· 2014, 2015, 2017
National & Lund chapters β promising scientific careers Β· 2014, 2016
Prestigious scholarship for medical students Β· 2017
Academically distinguished students Β· 2013β2015
Top students in medicine & science at Lund Β· 2016
My grandfather's struggle with severe type 2 diabetes, which led to vision loss, ignited a fire within me. This personal connection drove me to pursue a deeper understanding of the disease, its complications, and its management.β from Dr. Tojjar's personal statement
Interested in research collaboration, clinical or training opportunities, academic inquiries, speaking invitations, or mentorship? Send a message below.
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