Alzheimer's - Dementia, Author Interviews, Genetic Research, JAMA, Karolinski Institute / 24.03.2026
Karolinska Institutet Study Finds APOE Genotype Influences Link Between Red Meat Consumption and Cognitive Decline
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Jakob Norgren, Ph.D.[/caption]
MedicalResearch.com Interview with:
Jakob Norgren | PhD, Postdoctoral Researcher
Department of Neurobiology, Care Sciences and Society (NVS) | Karolinska Institutet
Division of Clinical Geriatrics | Center for Alzheimer Research
Huddinge, Sweden
MedicalResearch.com: What is the background for this study?
Response: This study tested the hypothesis that people with APOE 3/4 and 4/4 would have a reduced risk of cognitive decline and dementia with higher meat intake, based on the fact that APOE4 is the evolutionarily oldest variant of the APOE gene and may have arisen during a period when our evolutionary ancestors ate a more animal-based diet.
Jakob Norgren, Ph.D.[/caption]
MedicalResearch.com Interview with:
Jakob Norgren | PhD, Postdoctoral Researcher
Department of Neurobiology, Care Sciences and Society (NVS) | Karolinska Institutet
Division of Clinical Geriatrics | Center for Alzheimer Research
Huddinge, Sweden
MedicalResearch.com: What is the background for this study?
Response: This study tested the hypothesis that people with APOE 3/4 and 4/4 would have a reduced risk of cognitive decline and dementia with higher meat intake, based on the fact that APOE4 is the evolutionarily oldest variant of the APOE gene and may have arisen during a period when our evolutionary ancestors ate a more animal-based diet.
Photo by
Candida auris CDC Image[/caption]
MedicalResearch.com Interview with:
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Prof. Moo-Yong Rhee[/caption]
Professor Moo-Yong Rhee MD, PhD.
Cardiology,
Dr. Thorne[/caption]
Sally Thorne RN, PhD, FAAN, FCAHS, FCAN, CM
Professor Emeritus, School of Nursing
Co-Principal Investigator with :
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Dr. Pesut[/caption]
Dr. Barbara Pesut PhD, RN
Professor in the School of Nursing
Principal Research Chair in Palliative and End of Life Care
University of British Columbia
MedicalResearch.com: What is the background for this study?
Response: Medical assistance in dying (MAiD) was legalized in Canada in June of 2016 for Canadians who were facing a reasonably foreseeable natural death and met an explicit set of eligibility criteria as determined by qualified health care providers (physicians or nurse practitioners). In 2021, the legislation was extended to include the possibility of MAiD for persons who were suffering from a ‘grievous and irremediable’ medical condition but for whom natural death was not immediately foreseeable. As assisted dying represented a significant change in available options for Canadians with terminal or chronic conditions, requiring significant practice adaptations and including numerous legal, social, ethical, moral implications, the health research community has been working in consultation with clinicians, service providers and governments to generate knowledge that ensures safe, ethical and equitable practice in this regard.
Dr. Serena Guo[/caption]
Serena Jingchuan Guo, MD PhD
Assistant Professor
Department of Pharmaceutical Outcomes and Policy
University of Florida College of Pharmacy
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Dr. Hao Dai[/caption]
Hao Dai, PhD
Postdoctoral Fellow
Department of Biostatistics & Health Data Science
Indiana University School of Medicine
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Obesity and type 2 diabetes are both known to increase the risk of several cancers. Glucagon-like peptide 1 receptor agonists (GLP-1RAs) have become very popular for both glycemic control and weight loss, but their long-term effects on cancer risk are still unclear. Using a large real-world dataset, we emulated a target trial comparing more than 43,000 GLP-1RA users to matched non-users.
We found that GLP-1RA use was associated with a significantly lower overall cancer risk.
Dr. Jiyoung Ahn[/caption]
MedicalResearch.com Interview with:
Jiyoung Ahn, PhD
Dr. King[/caption]
Brett King, MD, PHD
Dr. King was named an American Academy of Dermatology (AAD) “Patient Care Hero”
for his work treating patients with severe alopecia areata
Dermatology Physicians of Connecticut
Fairfield, Connecticut
MedicalResearch.com: What is the background for this study? Would you briefly explain the condition of Alopecia Areata?
Response: Alopecia Areata (AA), an autoimmune form of hair loss, is common and its treatment has been revolutionized in the past ~3 years with approvals of 3 JAK inhibitors, bariticinib, ritlecitinib and deuruxolitinib. Prior to these approvals, off label treatments included the JAK inhibitors tofacitinib and ruxolitinib.
Prof. Lemesle[/caption]
Gilles Lemesle, M.D., Ph.D
Lille University Hospital, Lille, France
Dr. Ådén[/caption]
Ulrika Ådén PhD
Professor of Neonatology
Department of Women's and
Children's Health Karolinska
MedicalResearch.com: What is the background for this study?
Response: Children born preterm are at higher risk of cognitive impairment during childhood and later in life. However, an important unresolved question is whether these impairments primarily reflect genetic susceptibility or are driven by the biological consequences of being born too early. Cognitive development is known to have a strong heritable component (~70 %), and previous studies have attempted to disentangle genetic and environmental contributions, for example through sibling comparison designs. Although informative, such approaches have inherent limitations.
In this study, we aimed to investigate long-term cognitive outcomes across a range of gestational age groups including very preterm, moderately preterm, late preterm, and early term, compared to children born full term. Importantly, we accounted for genetic influences as well as a range of potential confounding factors, including prenatal risks and child-specific factors. This approach provides a more nuanced understanding of the extent to which cognitive outcomes associated with preterm birth reflect biological versus inherited risk.
Dr. Bradshaw[/caption]
Catriona Bradshaw MMBS(Hons), PhD, FAChSHM, FAHMS
Professor (Research), Head of Research Translation and Mentorship
and of The Genital Microbiota and Mycoplasma Group Melbourne
School of Translational Medicine, Monash University and Alfred Hospital
Principal Research Fellow at the Burnet Institute
MedicalResearch.com: What is the background for this study?
Response: One in three women globally have bacterial vaginosis (BV), a condition that causes a malodourous discharge, and associated with serious gynaecologic and obstetric sequelae (including miscarriage and preterm birth) and increases the risk sexually transmitted infections (STIs) and HIV. Women with symptoms are treated with broad-spectrum antibiotics, however, over 50% of women experience BV recurrence within 3-6 months. The recurrence rate is even higher at 60-80% among women with an ongoing regular partner. Current practice is to simply retreat women experiencing BV recurrence with the same antibiotics, which leaves them (and clinicians) frustrated and distressed.
We and others have accumulated a body of evidence to show that BV has the profile of an STI. BV-associated bacteria are detected in men in the distal urethra and on penile-skin, and couples share these organisms. However, to date, has not been recommended for BV as it is for other STIs. This is largely because men do not usually have any symptoms, and past partner-treatment trials in the 1980s and 1990s, which only used oral antibiotics for men, failed to prevent BV recurrence, which was taken as conclusive evidence against sexual transmission. Reviews of these trials have since identified their limitations.
Given the evidence of male carriage of BV-associated bacteria at two genital sites, we hypothesised that both sites needed to be targeted with antimicrobial therapy to prevent re-infection post-treatment. The aim of our study was to assess if male partner-treatment concurrently with female treatment using a combination of oral and topical antibiotics for the first time, would decrease BV recurrence over 12 weeks compared to the current standard practice of treating women only.