Author Interviews, Endocrinology, Hormone Therapy, JAMA, Schizophrenia / 01.08.2019
Schizophrenia: Estrogen Patches May Improve Symptoms in Women
MedicalResearch.com Interview with:
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Dr. Weiser[/caption]
Mark Weiser, M.D.
Associate Director for Treatment Trials
The Stanley Medical Research Institute
Kensington, MD 20895
MedicalResearch.com: What is the background for this study?
Response: Over the years many theories have been proposed explaining schizophrenia, and studies tested compounds based on these theories. Some showed improvement in symptoms, but these positive findings were often not later replicated, and the theory discarded. Over the past 15 years several studies performed in Australia by Dr. Jayshri Kulkarni (Molecular psychiatry. 2015;20(6):695) showed positive effects of estrogen patches on symptoms in women with schizophrenia.
Dr. Weiser[/caption]
Mark Weiser, M.D.
Associate Director for Treatment Trials
The Stanley Medical Research Institute
Kensington, MD 20895
MedicalResearch.com: What is the background for this study?
Response: Over the years many theories have been proposed explaining schizophrenia, and studies tested compounds based on these theories. Some showed improvement in symptoms, but these positive findings were often not later replicated, and the theory discarded. Over the past 15 years several studies performed in Australia by Dr. Jayshri Kulkarni (Molecular psychiatry. 2015;20(6):695) showed positive effects of estrogen patches on symptoms in women with schizophrenia.
Dr. Dunn[/caption]
Dr. Amy Dunn, PhD
Kaczorowski lab
The Jackson Laboratory
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Environmental factors, such as a poor diet, are known risk factors for Alzheimer’s disease. But the mechanisms are complex, and it is not known how such environmental perturbations interact with individual genetic variation to confer disease risk. Previous studies have not adequately addressed how the combination of genetic variant and environmental factors combine to alter cognitive response to a poor diet.
To investigate gene-by-environment interactions, we fed either a normal diet or a high-fat diet to a genetically diverse Alzheimer’s disease mouse model population starting at six months of age and monitored metabolic and cognitive function.
We observed accelerated working memory decline in the mice on the high-fat diet after eight weeks, with substantial gene-by diet effects on both cognitive and metabolic traits.
Metabolic dysfunction was more closely related to cognitive function in mice carrying Alzheimer’s mutations than in those without. Interestingly, the high-fat diet affected metabolic function differently in female versus male mice.

Dr. Nandi[/caption]
Arindam Nandi PhD
Center for Disease Dynamics, Economics & Policy
MedicalResearch.com: What is the background for this study?
Response: The motivation for this study comes from a small but growing body of evidence on the potential long-term benefits of vaccines. The recent resurgence of measles outbreaks in several countries which had previously eliminated the virus makes our study additionally relevant. There have been over 1,000 measles cases reported across 28 states in the US so far in 2019, which is the largest number of cases the country has seen in almost 3 decades. Similarly high number of cases have been reported in several European countries in recent years. This study reiterates the importance of vaccination and proves the long-term benefits of the measles vaccine in low- and middle-income countries, which account for a large proportion of global measles cases.



Dr. Schwartz[/caption]
Dr. Joseph A Schwartz PhD
Public Affairs and
Community Service, Criminology and Criminal Justice
University of Nebraska Omaha, Omaha, NE
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: My larger research agenda is focused on identifying the ways in which environmental and biological influences work collectively to shape behavioral patterns across major stages of the life course. I am particularly interested in identifying environmental influences that can change biological functioning or activity to result in behavioral change.
Brain injury was a natural progression of these interests since brain injury is expected to result in changes in the structure and functioning of the brain, which has been linked to meaningful changes in behavior. There have also been a sizable number of studies that indicate that justice involved populations experience brain injury at a rate that is between five and eight times what is observed in the general population. I was fascinated by this finding and thought that brain injury may be a good candidate influence to investigate further.