NBDF funds a broad range of research programs that seek to increase our understanding of the science behind bleeding disorders, how they affect people's lives, and pathways to better treatments and cures.

Determining Clinical Severity and Molecular Profiles of Acute Chest Syndrome in Sickle Cell Disease
Dr. Shani Johnson is a clinical postdoctoral fellow within the Department of Pediatrics, Section of Pediatric Hematology/Oncology at Baylor College of Medicine and Texas Children's Hospital. Dr. Johnson earned her medical degree from Duke University School of Medicine and completed her pediatric residency at Northwestern University/Lurie Children’s Hospital. Since medical school, Dr. Johnson has demonstrated a strong commitment to research and clinical care of children and young adults with sickle cell disease. With prior mentorship from national leaders in sickle cell disease, including Dr. Nirmish Shah (Duke) and Dr. Robert Liem (Northwestern), Dr. Johnson has presented her work at institutional and academic meetings including ASH, covering topics related to healthcare transition, cardiopulmonary fitness, and patient-reported outcomes in sickle cell disease. Continuing her training as a pediatric hematology/oncology fellow, she has spent the past year and a half in the laboratory of mentor Dr. Jonathan Flanagan, conducting sickle cell disease translational research with a specific focus on acute chest syndrome.
With the support of the NHF Jeanne Marie Lusher Diversity fellowship, Dr. Johnson plans to continue her sickle cell disease research with her project titled “Determining Clinical Severity and Molecular Profiles of Acute Chest Syndrome in Sickle Cell Disease.” She will investigate the roles of inflammation, blood cell rheology, and genetic variation in the pathophysiology of acute chest syndrome in order to determine why some children develop more severe complications than others.
Dr. Johnson’s overall goal is to become an independently funded clinical and translational physician-scientist and leader in the field of pediatric hematology, improving the lives of children and adolescents with sickle cell disease nationally and globally.

A Prospective Study of Clinical and Imaging Assessment of Cognitive Function and its Association with Anemia in Adults with Sickle Cell Disease
Since my first year of medical school, I have been actively involved in sickle cell disease (SCD) research with a focus on cognitive outcomes of patients affected by the disease. During my first year of medical school, I collaborated with my mentors, Dr. Enrico Novelli, and Dr. Noll and conducted an independent study that assessed cognitive impairment in children with SCD in Nigeria for which I served as a PI. I spent a month in Nigeria performing WISC IV cognitive assessments on children with SCD as well as a control group without the disease. The goal of the research was to elucidate the prevalence and correlates of CI in Nigeria. The experience laid a foundation for future longitudinal or interventional studies to ameliorate the disease burden of SCD in sub-Saharan Africa. It also furthered interest in the disease process of SCD especially in a neurological aspect of the disease course. During medical school, I was accepted into the Clinical Scientist Training Program where I conducted research exploring the relationship between arterial stiffness and cognitive functioning of individuals with SCD. Through this program, I was able to receive a Master of Science degree in clinical research. My most recent project deals with exploring the impact of hydroxyurea on cognitive functioning of children with SCD in Ghana. During my fellowship, I will continue to build on my prior training and research experiences. I am fortunate to be working with Dr. Kleber Fertrin and Dr. Rebecca Kruse-Jarres who both have an extensive career in management of patients with sickle cell disease. The proposed project will help me gain deeper understanding of neurocognitive outcomes and perhaps the prevention of neurocognitive outcomes in sickle cells disease. The Jean Marie Lusher Diversity Research Fellowship award will provide me with the support to achieve my goal of a prolific career in clinical and translational research in historically marginalized SCD patients.

Platelet Dysfunction in Ehlers-Danlos Patients with Bleeding Phenotype
Dr. Mariia Kumskova works at the Dr. Anil Chauhan’s laboratory, Department of Internal Medicine, Hematology-Oncology, University of Iowa. Dr. Kumskova obtained her medical degree from Russian State Medical University. Her professional research career began when she was working as a hematologist at National Research Center for Hematology (Russia). Her area of expertise is mainly focused on bleeding and thrombotic disorders. Since her residency Dr. Kumskova’s work contributed to the investigation of the coagulation status of different bleeding phenotypes in severe hemophilia A, standardizing diagnostic and treatment guidelines for patients with hemophilia, von Willebrand disease, and inherited platelet disorders, consulting patients with the combined bleeding diathesis and thrombotic events.
Dr. Kumskova’s research interests are concentrated on platelet cellular and molecular pathways. In pursue of continuing her study under the mentorship of established platelet field experts she joined The Chauhan Lab at the University of Iowa. Currently, her research is focused on unraveling the grey areas of platelet dysfunction in Ehlers-Danlos syndrome with bleeding phenotype. This innovative study has grown out of her medical practice. Dr. Kumskova believes that combining practical medicine and basic research of Ehlers-Danlos and platelet pathways can be beneficial for both, the research and medical fields.

Health Services Guide for Bleeding Disorder Camps
A professor and dual certified nurse practitioner in pediatrics and adults. She completed her PhD in Educational and Organizational Leadership and taught for 10 years specializing in camp nursing, service leadership, physiology, and hematology. Dr. Gaslin periodically works as a camp consultant and legal consultant and publishes the majority of her work in the areas of bleeding disorders, pediatric development, camp nursing, behavioral health, and leadership.
Dr. Gaslin served as the Medical Director at a special needs camp for six years where she directed care for children with chronic disease, disability and life-threatening illness. She currently serves as a nurse practitioner in a Hemophilia Treatment Center. She also serves as the Executive Director for the Association of Camp Nursing where she travels to different areas of the US and Canada educating healthcare providers about camp health services and the many benefits for children and adults. She recently (2020) co-authored a textbook: Camp Nursing; The Basics and Beyond. Dr Gaslin is passionate about every child having a camp experience and learning that they can achieve great things in life.

Pilot Study of Telemedicine vs In Person Physical Therapy Intervention for Hemophilia
Elizabeth Hall is the physical therapist for the Hemophilia and Thrombosis Treatment Center (HTC) at Rady Children’s Hospital San Diego (RCHSD). She has worked at RCHSD for over ten years and has worked closely with Dr. Thornburg for the past seven years. She has expertise in the evaluation and treatment of patients 0-21 years in inpatient, rehabilitation, and outpatient settings. She has developed particular expertise in the evaluation and management of children and adolescents with bleeding disorders. She is an active member of the Western States PT working group.

Post-Traumatic Stress Disorder (PTSD) and Posttraumatic Stress Symptoms (PTSS) Among Adults with Hemophilia A and B
Amanda Stahl, MSW, LICSW is the social worker for adult patients at the Boston Hemophilia Center at Brigham and Women’s Hospital, where she has been providing clinical services to patients with bleeding disorders since 2015. She participates in multiple national committees, joining the NHF Social Work Working Group in 2019, and the ATHN Access to Care Working Group also in 2019. For the past 2 years she has been a speaker at the NHF Bleeding Disorders Conference presenting on her research and information about Post-Traumatic Stress Symptoms for patients with acute and chronic illness. Amanda is a “double eagle” graduating with both her BA in 2006, and MSW in 2010, from Boston College.

Increasing the efficacy of prophylactic infused FIX in hemophilia B patients by manipulating its binding to collagen IV
Dr. Xuejie Chen is a postdoctoral fellow in the laboratory of Dr. Darrel Stafford at the University of North Carolina at Chapel Hill. Before joining Dr. Stafford’s lab, she received her Ph.D. degree in Cell Biology from Beijing Normal University, P. R. China. In her JGP Fellowship project, Dr. Chen aims to study the contributions of extravascular factor IX (FIX) to blood coagulation and to search for FIX variants that could efficiently displace the endogenous dysfunctional FIX in hemophilia B patients. To achieve this goal, Dr. Chen will study the binding between FIX and the subendothelial basement membranes, mainly type IV collagen, and use the site-directed random mutagenesis library to screen for tighter binding FIX molecules. In doing so, she hopes to identify a FIX variant that can be used in hemophilia B patients for better coagulation therapies.

Retrospective Chart Review of Joint Outcomes and Hospital Utilization for Persons with Hemophilia A (with and without inhibitors) Who Were Switched to Emicizumab for Treatment Prophylaxis
This research project will illustrate the improvements to joint range of motion and hospital utilization (which includes emergency room visits, hospital admissions, and central line infections) in persons with hemophilia A (with and without inhibitors) who switched to emicizumab for bleeding prevention.

Yoga for People with Bleeding Disorders and Chronic Pain
The primary aim of this study is to determine if people with bleeding disorders and chronic pain will attend and find benefit from an 8-week mindfulness-based yoga program. This program was chosen because of its focus on building skills in the areas of gentle yoga and mindfulness. Yoga positions will be modified to meet the needs of people who have joint contractures and limited range of motion. The program will include instruction in yoga and meditation techniques that are designed to reduce pain, fatigue, psychological distress, sleeping disturbances, and increase functional capacity.

Role of the HTC Social Worker

The role of EPCR-FVIIa in the pathogenesis and treatment of hemophilic arthropathy
From University of Texas Health Science Center at Tyler (UTHSCT). Dr. Magisetty completed Ph.D. doctoral training on the evaluation of FVIIa-EPCR interactions in the management of hemophilic arthropathy and is enthusiastic looking forward to the postdoctoral training on the “Role of EPCR-FVIIa anti-inflammatory signaling in the pathogenesis and treatment of hemophilic arthropathy”.

The role of FVIIa-released endothelial extracellular vesicles in hemophilia therapy
I am currently working as a Postdoctoral Research Associate at the University of Texas Health Science Center at Tyler, Tyler, Texas, under the mentorship of Professor L. Vijaya Mohan Rao. My research focuses on elucidating novel mechanisms by which FVIIa provides hemostatic and anti-inflammatory effects and the relevance of these mechanisms in treating bleeding disorders and hemophilic arthropathy. I graduated from the University of Calcutta, India, in 2009 with a bachelor’s degree in Microbiology. My post-graduation was also in Microbiology from India in 2011. I completed my doctoral studies in 2019 from the Indian Association for the Cultivation of Science, India, where I focused on understanding the mechanistic details of tissue factor-factor VIIa-induced progression of human breast cancer. I published several peer-reviewed articles from my Ph.D. thesis work in journals, such as Journal of Biological Chemistry, Cellular Signaling, and Molecular Carcinogenesis. I enjoy playing video games, reading novels, and cooking various Indian foods.

Reducing Severe Bleeding Symptoms in Hemophilia by Lowering Fibrinolysis
Dr. Ze Zheng is an Assistant Professor at the Medical College of Wisconsin and an Assistant Investigator at the Versiti Blood Research Institute (Blood Center of Wisconsin). She received her MBBS in Clinical Medicine from Jiamusi University in China, and her PhD in Molecular Medicine and Genetics, focusing on liver metabolism, from Wayne State University in Michigan. During her postdoctoral training in Dr. Ira Tabas lab at Columbia University, she found a novel source and regulation of basal plasma tissue-type plasminogen activator (tPA) derived from hepatocytes, which is important for fibrinolysis when a vessel injury occurs. Dr. Zheng recently joined the Medical College of Wisconsin in July 2020 and established her research laboratory in the Versiti Blood Research Institute with access to state-of-the-art facilities and group meetings with established investigators in hemostasis and bleeding disorders. Dr. Zheng has been the recipient of a Berrie Scholar Award, an ASH Scholar Award, an AHA Career Development Award, and a Cullen Run COVID-19 Rapid Response Grant.
As the 2020 recipient of the NHF Career Development Award, Dr. Zheng will be studying the mechanism of increased fibrinolysis in severe hemophilia patients in collaboration with the Comprehensive Center for Bleeding Disorders at Versiti Blood Center of Wisconsin. This work will explore novel therapeutic strategies to reduce basal fibrinolysis and bleeding symptoms in severe hemophilia patients.

Gene Therapy for Hemophilia: Patient Preferences and Shared-Decision Making
Dr. Courtney Thornburg is the Director of the Hemophilia and Thrombosis Treatment Center at Rady Children’s Hospital San Diego and Professor of Pediatrics at the University of California-San Diego.
Dr. Thornburg graduated from Duke University Medical School, completed her pediatric residency at Duke University Medical Center, and completed her pediatric hematology/oncology fellowship at the University of Michigan. While at the University of Michigan, she completed a Master Degree in Clinical Research Design and Statistical Analysis. During her time in Michigan she focused her training on hemophilia and other bleeding disorders and was a NHF-Shire Clinical Fellow under the mentorship of Dr. Steven Pipe. Dr. Thornburg was on the faculty at Duke University from 2005-2013 where she directed the sickle cell and hemostasis and thrombosis programs.
Dr. Thornburg is committed to taking care of children with blood disorders including bleeding disorders, clotting disorders and inherited red blood cell disorders. She conducts clinical research to improve the care of individuals with blood disorders. Her NHF Innovative Investigator Research Award focuses on patient preferences and shared-decision making related to gene therapy for hemophilia.
In order to educate the next generation of physicians, Dr. Thornburg teaches medical students, residents and fellows and is the Director of the Pediatric Hemostasis and Thrombosis Fellowship at RCHSD, a site for the NHF-Takeda Clinical Fellowship program.
Dr. Thornburg is a member of NHF’s Medical and Scientific Advisory Council (MASAC).
In addition to her career in medicine, Dr. Thornburg enjoys spending time with her family, traveling and playing tennis.

Analysis of Lower Extremity Joint Characteristics, Biomechanics, and Neuromotor Control during Gait in Patients with Hemophilia
Hemophilia causes repetitive bleeding episodes throughout the musculoskeletal system, primarily into joints, such as knees and ankles. This leads to significant joint damage resulting in increased pain reproduction, decreased functional abilities, such as walking, and negatively impacts quality of life. Traditionally the extend of joint damage has been examined via clinical assessments, such as the Hemophilia Joint Health Scores, x-rays, MRIs, and more recently musculoskeletal ultrasound (MSKUS). However, these modalities fail to establish the global impact of joint damage on the entire body of a person with hemophilia and their functional abilities. Analyzing joint motion and forces acting upon the joint during walking has been a widely established technique to gain understanding of abnormal three-dimensional movements and is a key factor in clinical decision making-processes. With the overall goal of establishing better treatment approaches for persons with hemophilia it is vital to understand the underlying functional joint limitations. Therefore, the purpose of this study is to investigate characteristics of damaged joints, joint motion and control as well as forces acting upon the joint during walking in persons with hemophilia.

Understanding of a Neurophenotype in Hemophilia A

The Prevalence of Depression and Anxiety in Children with Coagulopathies Being Treated at a Hemophilia and Thrombosis Center
The hemophilia and thrombosis centers in Tucson and Phoenix would like to join efforts to make a meaningful contribution to our understanding of the mental health profile of our pediatric population. This knowledge could contribute to a more tailored approach when designing clinics and programming, and, by identifying mental health issues, inform the development of targeted interventions. We hope to look at the prevalence of depression and anxiety in children with bleeding disorders including hemophilia, von Willebrand disease, and other congenital coagulopathies. We expect that the existence of a chronic health condition could affect a child's psychological development. We're also aware of the critical impact of family culture so our survey will include data on the mental health of the participants’ primary caretakers as well as other significant socioeconomic markers.

The Epitopes Recognized in the Early Immunue Response to Factor VIII

Navigating Time and Space: Experiences of Aging with Hemophilia
Sara L. Schwartz is a Clinical Associate Professor at the University of Southern California Suzanne Dworak-Peck School of Social Work. Her research portfolio examines experiences of isolation in diverse settings and communities such as public child welfare, social work academia and communities impacted by HIV/AIDS. In recent years, Dr. Schwartz has explored HIV/AIDS in the hemophilia community and the experiences of men and women aging with bleeding disorders. She serves on the Board of Directors of the National AIDS Memorial in San Francisco, applying her research skills to capture and preserve the histories of individuals and communities lost to the AIDS epidemic.

Functional Interpretation of Genetic Variants in Von Willebrand Factor
Dr. Andrew Yee is an assistant professor of pediatrics within the Department of Pediatrics, Hematology-Oncology Section at Baylor College of Medicine. Dr. Yee earned his doctorate from Rice University where he studied the biological responses of endothelial cells to mechanical forces in the laboratory of Dr. Larry McIntire. He continued his research training as a Judith Graham Pool postdoctoral fellow in the laboratory of Dr. David Ginsburg at the University of Michigan where he studied the molecular biology of von Willebrand factor. At Baylor College of Medicine, Dr. Yee and his team investigate the mechanisms by which von Willebrand factor controls blood clotting and are developing innovative approaches for diagnosing bleeding disorders.