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Introduction
Dr. Nafisa (n uh - f ee - s ah) M. Jadavji (j aa - d uh v - j ee) (she/her) is a Neuroscientist. She is a Research Professor at the University of Arizona and Carleton University. She completed her doctoral training at McGill University in Montréal, Canada. Currently, her laboratory investigates how the brain responds to different biological processes throughout the lifespan.
Additional affiliations
January 2019 - present
October 2018 - April 2019
January 2015 - December 2018
Education
September 2008 - December 2012
May 2006 - April 2008
May 2006 - April 2008
Publications
Publications (109)
Purpose
This paper aims to identify the extent to which the COVID-19 pandemic disrupted the academic job market in North America and the ways in which faculty job applicants altered their applications in response to a changing academia.
Design/methodology/approach
The data presented here is the portion relevant to COVID-19 collected in a survey of...
Hypoxia is a major component of ischemic stroke. Nutrition has been established as a modifiable risk factor for ischemic stroke. Over-supplementation of folic acid (FA) has become an increasing problem in the U.S and other countries as more people are consuming at or above the recommended daily amount of FA. The impact of over-supplementation of FA...
Marfan Syndrome (MFS) is an autosomal dominant genetic disorder that affects connective tissue throughout the body due to mutations in the FBN1 gene. Individuals with MFS display symptoms in different organs, particularly in the vasculature, but the mechanisms of this multi-system dysfunction are still under investigation. There is still a gap in o...
Background/objectives: Ischemic stroke is a major health concern, and nutrition is a modifiable risk factor that can influence recovery outcomes. This study investigated the impact of maternal dietary deficiencies in folic acid (FADD) or choline (ChDD) on the metabolite profiles of offspring after ischemic stroke. Methods: A total of 32 mice (17 ma...
Objective: Ischemic stroke is the leading cause of death and disability globally. By addressing modifiable risk factors, particularly nutrition, the prevalence of stroke and its dire consequences can be mitigated. One-carbon (1C) metabolism is a critical biosynthetic process that is involved in neural tube closure, DNA synthesis, plasticity, and ce...
Ischemic stroke is one of the leading causes of disability and death globally, with a rising incidence in younger age groups. It is well known that maternal diet during pregnancy and lactation is vital for the early neurodevelopment of offspring. One-carbon (1C) metabolism, including folic acid and choline, plays a vital role in closure of the neur...
Ischemic stroke is one of the leading causes of disability and death globally, with a rising incidence in younger age groups. It is well known that maternal diet during pregnancy and lactation is vital for the early neurodevelopment of offspring. One-carbon (1C) metabolism, including folic acid and choline, plays a vital role in closure of the neur...
Ischemic stroke is a debilitating disease, with nutrition being a modifiable risk factor. Changes in levels of metabolites can be used to measure the alterations in the gut, a significant marker for the etiology of diseases. This study utilized untargeted metabolomics to investigate changes in fecal samples of offspring in response to maternal diet...
Elevated plasma homocysteine levels have been identified as a significant, independent risk factor for the development of cognitive decline including Alzheimer’s disease. While several studies have explored the link between homocysteine and disease risk, the associations have not been entirely clear. Elevated levels of homocysteine serve as a disea...
Stroke is the second most common cause of death worldwide and predominantly affects individuals over 65 years old. Its prevalence is projected to increase in parallel with the aging global population. Nutrition is a modifiable risk factor for ischemic stroke. Folates, B-vitamins and choline play a central role in one-carbon (1C) metabolism, which i...
Traumatic brain injury is a major cause of death and disability worldwide, affecting over 69 million individuals yearly. One-carbon metabolism has been shown to have beneficial effects after brain damage, such as ischemic stroke. However, whether increasing one-carbon metabolite vitamins impacts traumatic brain injury outcomes in patients requires...
Stoke is the leading cause of death and disability globally. By addressing modifiable risk factors, particularly nutrition, the prevalence of stroke and its dire consequences can be mitigated. One-carbon (1C) metabolism is a critical biosynthetic process that is involved in neural tube closure, neuronal plasticity, and cellular proliferation in the...
Adequate maternal dietary levels of one-carbon metabolites, such as folic acid and choline, play an important role in the closure of the neural tube in utero; however, the impact of deficiencies in 1C on offspring neurological function after birth remain undefined. Stroke is one of the leading causes of death and disability globally. The aim of our...
Aging results in more health challenges, including neurodegeneration. Healthy aging is possible through nutrition as well as other lifestyle changes. One-carbon (1C) metabolism is a key metabolic network that integrates nutritional signals with several processes in the human body. Dietary supplementation of 1C components, such as folic acid, vitami...
Maternal dietary levels of one-carbon (1C) metabolites (folic acid and choline) during pregnancy play a vital role in neurodevelopment. However, the impact of maternal dietary deficiencies on offspring stroke outcomes later in life remains undefined. The aim of this study was to investigate the role of maternal dietary deficiencies in folic acid an...
Nutrition is a modifiable risk factor for ischemic stroke. As people age their ability to absorb some nutrients decreases, a primary example is vitamin B12. Older individuals with a vitamin B12 deficiency are at a higher risk for ischemic stroke and have worse stroke outcome. However, the mechanisms through which these occur remain unknown. The aim...
Maternal one-carbon metabolism plays an important role in early life programming. There is a well-established connection between the fetal environment and the health status of the offspring. However, there is a knowledge gap on how maternal nutrition impacts stroke outcomes in offspring. The aim of our study was to investigate the role of maternal...
Maternal diet pregnancy and lactation is vital to the early life neuro programming of offspring. One-carbon (1C) metabolism, which includes folic acid and choline, plays a vital role in closure of the neural tube and other neurodevelopment. However, the impact of maternal dietary deficiencies on offspring neurological function following ischemic st...
A maternal diet that provides adequate nutrition during pregnancy and lactation is vital to the neurodevelopment of offspring. One-carbon metabolism plays an important role in the closure of the neural tube of the developing embryo; however, the impact of maternal one-carbon dietary deficiencies on offspring neurological function later in life rema...
Maternal one-carbon metabolism, including dietary levels of folic acid and choline, play an important role in early life programming. There is a well-established connection between the fetal environment and the health status of offspring. However, there is a gap in knowledge on how maternal nutrition will affect the health status of the offspring a...
A maternal diet that provides adequate nutrition during pregnancy and lactation is vital to the neurodevelopment of offspring. One-carbon metabolism plays an important role in the closure of the neural tube of the developing embryo; however, the impact of maternal one-carbon dietary deficiencies on offspring neurological function later in life rema...
Maternal one-carbon (1C) metabolism plays an important role in early life programming. There is a well-established connection between the fetal environment and the health status of the offspring. However, there is a knowledge gap on how maternal nutrition impacts stroke outcome in offspring. The aim of our study was to investigate the role of mater...
Folate is vital for biological processes within the body, including DNA synthesis, DNA repair, and methylation reactions that metabolize homocysteine. The role of folate is particularly important in pregnancy, where there is rapid cellular and tissue growth. Maternal folate deficiencies secondary to inadequate dietary supplementation are known to p...
Background and Purpose
Adequate maternal dietary levels of one-carbon (1C) metabolites, such as folic acid and choline, play an important role in the closure of the neural tube in utero ; however, the impact of deficiencies in 1C on offspring neurological function after birth remain undefined. Stroke is one of the leading causes of death and disabi...
A vitamin B12 deficiency (vit. B12 def.) is common in the elderly, because of changes in metabolism. Clinical studies have reported that a vit. B12 def. results in worse outcome after stroke, and the mechanisms through which a vit. B12 def. changes the brain requires further investigation. This study investigated the role of vit. B12 def. on stroke...
Objectives
A maternal diet that provides adequate nutrition during pregnancy and lactation is vital to the neurodevelopment of offspring. Deficiencies in nutrients during fetal growth can lead to altered early life nutritional programming such as spina bifida, a neural tube defect. One-carbon metabolism plays a vital role in the closure of the neur...
Many speculated that the faculty job market would be severely impacted by the COVID-19 pandemic, potentially for years. Our examination of faculty job postings from 2018 to 2021 found that while they decreased in 2020, the market recovered in 2021. We also surveyed how the pandemic affected the perceptions, behaviors, and outcomes of individuals on...
Ischemic stroke is an unmet medical need within the clinical population and is associated with significant mortality and morbidity. Nutrition is a modifiable risk factor for ischemic stroke. A maternal diet that provides adequate nutrition during pregnancy and lactation is vital to the neurodevelopment of offspring. Deficiencies in nutrients during...
The global population is aging and the prevalence of age-related diseases, such as stroke, is predicted to increase. A vitamin B12 deficiency (vit. B12 def.) is common in the elderly, because of changes in metabolism. Clinical studies have reported that a vit. B12 def results in worse outcome after stroke, the mechanisms through which a vit. B12 de...
The COVID-19 pandemic is a rapidly evolving crisis. With the worldwide scientific community shifting focus onto the SARS-CoV-2 virus and COVID-19, a large number of possible pharmaceutical approaches for treatment and prevention have been proposed.
Background
Nutrition is a modifiable risk factor for ischemic stroke. As people age their ability to absorb some nutrients decreases, a primary example is vitamin B12. Older individuals with a vitamin B12 deficiency are at a higher risk for ischemic stroke and have worse outcome after stroke. However the mechanisms through which these occur remain...
Open and reproducible research practices increase the reusability and impact of scientific research. The reproducibility of research results is influenced by many factors, most of which can be addressed by improved education and training. Here we describe how workshops developed by the Reproducibility for Everyone (R4E) initiative can be customized...
Objectives
The majority of the world's population is growing older, in 2000, 10% of the total population of the world was over 60 years old and is projected to increase to 21% by 2050. Brain vasculature is unique, and its aging has been scarcely investigated at the cellular, and molecular levels, as well as in the context of age-related comorbiditi...
Objective
One-carbon (1C) metabolism is a metabolic network that integrates nutritional signals with biosynthesis, redox homeostasis, and epigenetics. There are sex differences in hepatic 1C metabolism, however, it is unclear whether sex differences in 1C impact the brain. The aim of this study was to investigate if sex modulates the effects of die...
Mentorship is experience and/or knowledge‐based guidance. Mentors support, sponsor and advocate for mentees. Having one or more mentors when you seek advice can significantly influence and improve your research endeavours, well‐being and career development. Positive mentee–mentor relationships are vital for maintaining work–life balance and success...
Securing research funding is a challenge faced by most scientists in academic institutions worldwide. Funding success rates for all career stages are low, but the burden falls most heavily on early career researchers (ECRs). These are young investigators in training and new principal investigators who have a shorter track record. ECRs are dependent...
Writing recommendation letters on behalf of students and other early‐career researchers is an important mentoring task within academia. An effective recommendation letter describes key candidate qualities such as academic achievements, extracurricular activities, outstanding personality traits, participation in and dedication to a particular discip...
After emerging in China in late 2019, the novel Severe acute respiratory syndrome-like coronavirus 2 (SARS-CoV-2) spread worldwide and as of early 2021, continues to significantly impact most countries. Only a small number of coronaviruses are known to infect humans, and only two are associated with the severe outcomes associated with SARS-CoV-2: S...
After emerging in China in late 2019, the novel Severe acute respiratory syndrome-like coronavirus 2 (SARS-CoV-2) spread worldwide and as of early 2021, continues to significantly impact most countries. Only a small number of coronaviruses are known to infect humans, and only two are associated with the severe outcomes associated with SARS-CoV-2: S...
Currently, ischemic stroke is the most prevalent form of stroke compared to hemorrhagic and there is a high incidence in older adults. Nutrition is a modifiable risk factor for stroke. B-vitamins are part of a metabolic network that integrates nutritional signals with biosynthesis, redox homeostasis, and epigenetics. These vitamins play an essentia...
Introduction: The majority of the world’s population is growing older, in 2000, 10% of the total population of the world was over 60 years old and is projected to increase to 21% by 2050. Brain vasculature is unique, and its aging has been scarcely investigated at the cellular, and molecular levels, as well as in the context of age-related comorbid...
Purpose of review:
Ischemic stroke results in disability and mortality worldwide. Nutrition is a modifiable risk factor for stroke. For example, deficiencies in one-carbon metabolism have been linked to increased risk of stroke through elevated levels of homocysteine. Some countries world-wide fortify their diets with folates to prevent neural tub...
Background
Recent evidence suggests that sex plays a role when there are deficiencies in one-carbon metabolism, however, the impact on brain tissue remains unknown.
Objective
The aim of the study was to examine the impact of sex differences and dietary folic acid deficiency on brain tissue in adult mice.
Methods
Male and female C57Bl/6J mice were...
One-carbon (1C) metabolism is a metabolic network that is centered on folate, a B vitamin; it integrates nutritional signals with biosynthesis, redox homeostasis, and epigenetics. This metabolic pathway also reduces levels of homocysteine, a non-protein amino acid. High levels of homocysteine are linked to increased risk of hypoxic events, such as...
Reproducibility is a cornerstone of the scientific method and sets apart science from pseudoscience. Unfortunately, a majority of scientists have experienced difficulties in reproducing their own or someone else’s results. This inability to confirm scientific findings negatively impacts individual scientists, funding bodies, academic journals, phar...
Securing research funding is a challenge faced by most scientists in academic institutions worldwide. Funding success rates for all career stages are low, but the burden falls most heavily on early career researchers (ECRs) - young investigators in training and new principal investigators - who have a shorter track record and are dependent on fundi...
Many postdoctoral researchers apply for faculty positions knowing relatively little about the hiring process or what is needed to secure a job offer. To address this lack of knowledge about the hiring process we conducted a survey of applicants for faculty positions: the survey ran between May 2018 and May 2019, and received 317 responses. We analy...
Many postdoctoral researchers apply for faculty positions knowing relatively little about the hiring process or what is needed to secure a job offer. To address this lack of knowledge about the hiring process we conducted a survey of applicants for faculty positions: the survey ran between May 2018 and May 2019, and received 317 responses. We analy...
Many postdoctoral researchers apply for faculty positions knowing relatively little about the hiring process or what is needed to secure a job offer. To address this lack of knowledge about the hiring process we conducted a survey of applicants for faculty positions: the survey ran between May 2018 and May 2019, and received 317 responses. We analy...
Objectives
Nutrition is a modifiable risk factor for stroke, which is one of the leading causes of death and disability world-wide. In humans deficiencies in one-carbon metabolism, including the methyltetrahydrofolate reductase (MTHFR) polymorphism, have been linked to increased risk of stroke. The Mthfr+/− mice mouse model mimics the phenotype of...
Objective: Elevated homocysteine concentrations are a risk factor for stroke. A common genetic polymorphism in methylenetetrahydrofolate reductase (MTHFR 677 C→T) results in elevated levels of homocysteine. MTHFR plays a critical role in the synthesis of S-adenosylmethionine (SAM), a global methyl donor. Our previous work has demonstrated that Mthf...
In offspring, an adequate maternal diet is important for neurodevelopment. One mechanism by which maternal diet impacts neurodevelopment is through its dynamic role in the development of the gut microbiota. Communication between the gut, and its associated microbiota, and the brain is facilitated by the vagus nerve, in addition to other routes. Cur...
Purpose – The postdoctoral position was originally created as a short training period for PhD holders on the path to becoming university professors; however, the single-purpose paradigm of training has evolved considerably over time. The purpose of this paper is to report on the opportunities and challenges faced by postdocs as they navigate this c...
Objective
Elevated homocysteine concentrations are a risk factor for stroke. A common genetic polymorphism in methylenetetrahydrofolate reductase ( MTHFR 677 C ➔ T) results in elevated levels of homocysteine. MTHFR plays a critical role in the synthesis of S -adenosylmethionine (SAM), a global methyl donor. Our previous work has demonstrated that M...
Many postdoctoral fellows in the STEM fields enter the academic job market with little knowledge of the process and expectations, and without any means to assess their qualifications relative to the general applicant pool. Demystifying this process is critical, as there is little information publicly available. In this work, we provide insight into...
The prevalence of stroke increases with age and the ability to absorb all nutrients from our diets decreases with age. Nutrition is a modifiable risk factor for stroke, which is a leading cause of death and disability in world-wide. Deficiencies in one‑carbon metabolism, including in methyltetrahydrofolate reductase (MTHFR), have been linked to inc...
Introduction: Preterm birth is a major global health concern, contributing to 35% of all neonatal deaths in 2016. Given the importance of accurately ascertaining estimates of preterm birth and in light of current limitations in postnatal gestational age (GA) estimation, novel methods of estimating GA postnatally in the absence of prenatal ultrasoun...
Parkinson’s disease (PD) is the second most common neurodegenerative disorder. It is characterised by the progressive degeneration of dopaminergic (DA) neurons. The cause of degeneration is not well understood; however, both genetics and environmental factors, such as nutrition, have been implicated in the disease process. Deficiencies in one-carbo...
In the adult hippocampal dentate gyrus (DG), the majority of newly generated cells are eliminated by apoptotic mechanisms. The apoptosis repressor with caspase recruitment domain (ARC), encoded by the Nol3 gene, is a potent and multifunctional death repressor that inhibits both death receptor and mitochondrial apoptotic signaling. The aim of the pr...
Objectives:
Stroke is a leading cause of disability and death world-wide. Increased levels of homocysteine are associated with risk for stroke. Metheylenetetrahydrofolate reductase (MTHFR) generates methyl groups to aid in the metabolism of homocysteine. A polymorphism in MTHFR (677C→T) has been identified in 5-15% of North American and European p...
Vascular Cognitive Impairment (VCI) is a form of dementia, most prevalent after Alzheimer’s Disease. However, VCI remains the second leading cause for dementia because it restricts blood flow to the brain and there are currently no treatments. There has been a positive correlation between VCI and hippocampal atrophy reported. Diet such as deficienc...
Paraquat is an herbicide that is commonly used worldwide. Exposure to paraquat results in Parkinson's disease (PD)-like symptoms including dopaminergic cell loss. Nutrition has also been linked in the pathogenesis of PD, such as reduced levels of folic acid, a B-vitamin, and component of one-carbon metabolism. Within one-carbon metabolism, methylen...
The global population is aging and the prevalence of age-related diseases, such as Alzheimer's disease and vascular dementia is increasing. Understanding functional impairments and disease processes is of vital importance in order to develop effective therapeutics. Using the natural exploratory behavior of mice, the spontaneous alternation y-maze c...
Folic acid, a B vitamin, is vital for early neurodevelopment and is well known for its protective effect against neural tube defects. Various national health agencies worldwide recommend that women of childbearing age take approximately 0.4 to 1 mg of supplemental folic acid daily to reduce the risk of neural tube defects in offspring. Several coun...