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2023

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Full-Text Articles in Medicine and Health Sciences

Adherence To A Gluten-Free Diet And Depression, And Nutrient Distribution In Participants With Celiac Disease, Mohammad K. Shushari Aug 2023

Adherence To A Gluten-Free Diet And Depression, And Nutrient Distribution In Participants With Celiac Disease, Mohammad K. Shushari

Theses and Dissertations

Celiac disease (CD), an autoimmune disorder affecting millions of Americans, poses significant obstacles leading to a normal life. With no known cure, adherence to a strict glutenfree diet (GFD) is essential. However, the cost and limited availability of gluten-free alternatives can burden individuals with CD. Additionally, factors such as socioeconomic status, nutrient deficiencies, and the nature of the disease may contribute to mental health issues. This study aimed to investigate the influence of adherence to a GFD on depression in CD patients. The prevalence of depression among individuals with CD from diverse backgrounds was examined, along with the analysis of …


Metabolic Adaptation Of Staphylococcus Aureus Pathogenesis And Therapeutic Approach In Diabetic Foot Ulcers., Carol L. Baker Aug 2023

Metabolic Adaptation Of Staphylococcus Aureus Pathogenesis And Therapeutic Approach In Diabetic Foot Ulcers., Carol L. Baker

Theses and Dissertations

37.3 million Americans (11.2% of the US population) currently have Type 2 diabetes mellitus (T2DM) with over 1.5 million new cases being diagnosed each year. The multifactorial etiology of the patient having neuropathy, overweight/obesity, foot deformities, ischemia, and infection leads to a condition called diabetic foot ulcer (DFU). One in six patients with a DFU will require amputation with infected DFUs have a 155-fold increased risk of amputation. Staphylococcus aureus is the most common bacteria isolated from severe DFU infections that require amputation. Interestingly, diabetics are more heavily colonized with S. aureus compared to non-diabetics suggesting a unique advantageous adaptation …


Dog Tired: Examining The Relation Between Dog And/Or Cat Ownership And Owners’ Sleep, Courtney J. Bolstad Aug 2023

Dog Tired: Examining The Relation Between Dog And/Or Cat Ownership And Owners’ Sleep, Courtney J. Bolstad

Theses and Dissertations

Sleep is an essential part of life, and obtaining quality sleep is important for various areas of functioning. Behaviors to promote sleep include physical activity, managing stress, reducing anxiety symptoms, maintaining a consistent sleep schedule, and obtaining bright light exposure. Many of these behaviors overlap with benefits observed from pet ownership (PO). The present study aimed to examine the relation between PO and sleep as well as moderators and mediators of this relation. Four research questions were examined: 1) Is PO significantly related to sleep? 2) Does gender moderate the relation between PO and sleep? 3) Do sleep-promoting behaviors (i.e., …


Nutritional Strategies To Reduce Salmonella Enteritidis Infections In Laying Hens: Prebiotic, Probiotic, And Precision Biotics, Ishab Poudel Aug 2023

Nutritional Strategies To Reduce Salmonella Enteritidis Infections In Laying Hens: Prebiotic, Probiotic, And Precision Biotics, Ishab Poudel

Theses and Dissertations

Salmonella Enteritidis (SE) infections in laying hens is a significant cause of foodborne illness linked to the consumption of contaminated eggs. This dissertation encompasses novel strategies aimed to explore appropriate in-vitro and in-vivo models to evaluate the effects of these novel strategies to reduce SE in laying hens. Firstly, we investigated the potential probiotics, prebiotics, and essential oil combinations to reduce SE in-vitro. The results showed that probiotics and prebiotics are equally effective to reduce SE. In subsequent studies, we evaluated the role of vaccination history on cecal microbiota and SE infections with various doses of oral SE challenge. …


Effectiveness Of Intervention Studies Based On Diet And/Or Physical Activity In Treatment, Prevention, And Management Of Diabetes Among South Asians: A Systematic Review, Ishaan Arora Aug 2023

Effectiveness Of Intervention Studies Based On Diet And/Or Physical Activity In Treatment, Prevention, And Management Of Diabetes Among South Asians: A Systematic Review, Ishaan Arora

Theses and Dissertations

The purpose of this study was to describe diet and/or physical activity-based interventions and their control in cardiometabolic risk factors of diabetes for the South Asian (SA) population. A systematic review was conducted in accordance with the PRISMA guidelines. Seventeen randomized control trials meeting the inclusion criteria were included for analysis. Interventions with type-2 diabetic SA showed significant improvements in HbA1c% (4/5 studies), fasting blood glucose (3/4 studies), and postprandial glucose (2/2 studies). Interventions with at-risk/prediabetic and non-diabetic SA showed a modest change in overall outcomes, with significant change reported for post-prandial insulin (3/4 studies), BMI and weight (2/4 studies), …


A Comparison Of Ground Reaction Forces And Muscle Activity Of The Tsunami Bar® Against A Rigid Barbell During Back Squat Phases, John Carver Middleton Aug 2023

A Comparison Of Ground Reaction Forces And Muscle Activity Of The Tsunami Bar® Against A Rigid Barbell During Back Squat Phases, John Carver Middleton

Theses and Dissertations

An Institutional Review Board (IRB)-approved study was conducted to investigate the effects of the Tsunami Bar® (TB), a flexible barbell, on ground reaction force (GRF) production and muscle activity in the quadricep, hamstring, and gluteal muscle groups during phases of the squat exercise and compare the effects to the effects to using a rigid barbell (RB). A two-by-two repeated measures Analysis of Variance (ANOVA) test was used to compare the results. Descriptive statistics showed significantly higher GRFs for the TB during the unweighting phase, significant differences in GRFs between speeds for each phase, significantly higher forces on average with the …


Molecular Mechanisms Of Snorna-Ll-15 Crosstalk In Adipocyte Lipolysis And Nk Cell Rejuvenation, Yaohua Zhang, Zilong Zhao, Lisa A Huang, Yuan Liu, Jun Yao, Chengcao Sun, Yajuan Li, Zhao Zhang, Youqiong Ye, Fei Yuan, Tina K Nguyen, Nikhil Reddy Garlapati, Andrew Wu, Sergey D Egranov, Abigail S Caudle, Aysegul A Sahin, Bora Lim, Laura Beretta, George A Calin, Dihua Yu, Mien-Chie Hung, Michael A Curran, Katayoun Rezvani, Boyi Gan, Zhi Tan, Leng Han, Chunru Lin, Liuqing Yang Aug 2023

Molecular Mechanisms Of Snorna-Ll-15 Crosstalk In Adipocyte Lipolysis And Nk Cell Rejuvenation, Yaohua Zhang, Zilong Zhao, Lisa A Huang, Yuan Liu, Jun Yao, Chengcao Sun, Yajuan Li, Zhao Zhang, Youqiong Ye, Fei Yuan, Tina K Nguyen, Nikhil Reddy Garlapati, Andrew Wu, Sergey D Egranov, Abigail S Caudle, Aysegul A Sahin, Bora Lim, Laura Beretta, George A Calin, Dihua Yu, Mien-Chie Hung, Michael A Curran, Katayoun Rezvani, Boyi Gan, Zhi Tan, Leng Han, Chunru Lin, Liuqing Yang

Faculty, Staff and Student Publications

Obesity, in which the functional importance of small nucleolar RNAs (snoRNAs) remains elusive, correlates with risk for many cancer types. Here, we identify that the serum copies of adipocyte-expressed SNORD46 correlate with body mass index (BMI), and serum SNORD46 antagonizes interleukin-15 (IL-15) signaling. Mechanically, SNORD46 binds IL-15 via G11, and G11A (a mutation that significantly enhances binding affinity) knockin drives obesity in mice. Functionally, SNORD46 blocks IL-15-induced, FER kinase-dependent phosphorylation of platelet glycoprotein 4 (CD36) and monoglyceride lipase (MGLL) in adipocytes, leading to inhibited lipolysis and browning. In natural killer (NK) cells, SNORD46 suppresses the IL-15-dependent autophagy, leading to reduced …


Regeneration And Rejuvenation Of Skin By A Topical Yap Activator, James F Martin Aug 2023

Regeneration And Rejuvenation Of Skin By A Topical Yap Activator, James F Martin

Faculty, Staff and Students Publications

No abstract provided.


Clonal Hematopoiesis In Survivors Of Childhood Cancer, Danielle Novetsky Friedman, Irenaeus C C Chan, Kimberly Turner, Jie Liu, Megan A Cooper, Iskra Pusic, Geoffrey Uy, Daniel Link, Kelly L Bolton, Et Al. Aug 2023

Clonal Hematopoiesis In Survivors Of Childhood Cancer, Danielle Novetsky Friedman, Irenaeus C C Chan, Kimberly Turner, Jie Liu, Megan A Cooper, Iskra Pusic, Geoffrey Uy, Daniel Link, Kelly L Bolton, Et Al.

2020-Current year OA Pubs

No abstract provided.


Statin Use In Myelodysplastic Syndromes Is Associated With A Better Survival And Decreased Progression To Leukemia, Amber Afzal, Mark A Fiala, Meagan A Jacoby, Matthew J Walter Aug 2023

Statin Use In Myelodysplastic Syndromes Is Associated With A Better Survival And Decreased Progression To Leukemia, Amber Afzal, Mark A Fiala, Meagan A Jacoby, Matthew J Walter

2020-Current year OA Pubs

No abstract provided.


Influenza Vaccine Format Mediates Distinct Cellular And Antibody Responses In Human Immune Organoids, Jenna M Kastenschmidt, Elizabeth Levendosky, Naresha Saligrama, Et Al. Aug 2023

Influenza Vaccine Format Mediates Distinct Cellular And Antibody Responses In Human Immune Organoids, Jenna M Kastenschmidt, Elizabeth Levendosky, Naresha Saligrama, Et Al.

2020-Current year OA Pubs

Highly effective vaccines elicit specific, robust, and durable adaptive immune responses. To advance informed vaccine design, it is critical that we understand the cellular dynamics underlying responses to different antigen formats. Here, we sought to understand how antigen-specific B and T cells were activated and participated in adaptive immune responses within the mucosal site. Using a human tonsil organoid model, we tracked the differentiation and kinetics of the adaptive immune response to influenza vaccine and virus modalities. Each antigen format elicited distinct B and T cell responses, including differences in their magnitude, diversity, phenotype, function, and breadth. These differences culminated …


Loss Of Microrna-30a And Sex-Specific Effects On The Neonatal Hyperoxic Lung Injury, Sandra L Grimm, Samuel Reddick, Xiaoyu Dong, Connor Leek, Amy Xiao Wang, Manuel Cantu Gutierrez, Sean M Hartig, Bhagavatula Moorthy, Cristian Coarfa, Krithika Lingappan Aug 2023

Loss Of Microrna-30a And Sex-Specific Effects On The Neonatal Hyperoxic Lung Injury, Sandra L Grimm, Samuel Reddick, Xiaoyu Dong, Connor Leek, Amy Xiao Wang, Manuel Cantu Gutierrez, Sean M Hartig, Bhagavatula Moorthy, Cristian Coarfa, Krithika Lingappan

Faculty, Staff and Students Publications

BACKGROUND: Bronchopulmonary dysplasia (BPD) is characterized by an arrest in lung development and is a leading cause of morbidity in premature neonates. It has been well documented that BPD disproportionally affects males compared to females, but the molecular mechanisms behind this sex-dependent bias remain unclear. Female mice show greater preservation of alveolarization and angiogenesis when exposed to hyperoxia, accompanied by increased miR-30a expression. In this investigation, we tested the hypothesis that loss of miR-30a would result in male and female mice experiencing similar impairments in alveolarization and angiogenesis under hyperoxic conditions.

METHODS: Wild-type and miR-30a−/− neonatal mice were exposed …


Students Of Color And Covid-19: Experiences, Coping Strategies, And Supports, Amie S. Kang, Barbora Hoskova, Chung Yu Liu, Arisa Viddayakorn, Molly Binder, Belle Liang, Betty S. Lai Aug 2023

Students Of Color And Covid-19: Experiences, Coping Strategies, And Supports, Amie S. Kang, Barbora Hoskova, Chung Yu Liu, Arisa Viddayakorn, Molly Binder, Belle Liang, Betty S. Lai

Journal of Educational Research and Practice

The coronavirus disease of 2019, known as the COVID-19 pandemic, is a disaster event that posed significant physical, social, financial, and mental health risks to college students. Disproportionate experiences of stressors position students of color as a population particularly vulnerable to the negative impacts of COVID-19, thus, the current study assessed the impact of COVID-19 on undergraduate students of color in the United States. Students participated in semi-structured in-depth interviews about their experiences with stressors during the pandemic. Data were analyzed using conventional content analysis and revealed themes including (a) the pandemic’s impact on students; (b) basic needs as college …


Seeing Into The Future: Heartmate 3 To The Systemic Right Ventricle In A Completely Blind Patient With Congenitally-Corrected Transposition Of The Great Arteries, Juhi Ramchandani, Chirag Dipak Shah, Kashif Saleem, Maya Guglin, Roopa Rao Aug 2023

Seeing Into The Future: Heartmate 3 To The Systemic Right Ventricle In A Completely Blind Patient With Congenitally-Corrected Transposition Of The Great Arteries, Juhi Ramchandani, Chirag Dipak Shah, Kashif Saleem, Maya Guglin, Roopa Rao

The VAD Journal

A 24-year-old, blind male with congenitally-corrected transposition of the great arteries and systemic right ventricular failure presented with New York Heart Association class IV heart failure despite home inotropic therapy. He was not a transplant candidate due to psychosocial issues. He underwent a successful HeartMate 3 (Abbott Laboratories) placement with the implementation of techniques to guide home ventricular assist device care despite blindness.


Utilization Of Prophylactic Antibiotics For Cardiac Patients Undergoing Dental Procedures In Saudi Arabia: A Retrospective Study., Fayez Elshaer, Abdulelah (Hamad) Alsaeed, Sultan (Nasser) Alfehaid, Hassan (Mohammad) Aloraini, Turki (Eid) Alshammari, Fakhir Alayoubi Aug 2023

Utilization Of Prophylactic Antibiotics For Cardiac Patients Undergoing Dental Procedures In Saudi Arabia: A Retrospective Study., Fayez Elshaer, Abdulelah (Hamad) Alsaeed, Sultan (Nasser) Alfehaid, Hassan (Mohammad) Aloraini, Turki (Eid) Alshammari, Fakhir Alayoubi

Journal of the Saudi Heart Association

Objectives: This study aimed to determine the characteristics of antibiotic prophylaxis (AP) utilization and the level of adherence of King Saud University Medical City (KSUMC) staff to the latest American Heart Association (AHA) guidelines for AP for infective endocarditis (IE) in cardiac patients undergoing dental procedures. Methods: The study was conducted as a retrospective cohort study to investigate the relationship between AP in dental procedures and cardiac patients admitted in the surgical wards of KSUMC between 2015 and 2021. All cardiac patients who underwent dental procedures were included in the study. We excluded patients with long-term or concurrent antibiotic use …


Ada News - 08/07/2023, American Dental Association, Publishing Division Aug 2023

Ada News - 08/07/2023, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.


The Influence Of Personality Type On Patient Outcome Measures And Therapeutic Alliance In Patients With Low Back Pain, William J. Hanney, Fahim Dhalla, Chase Kelly, Alicia Tomberlin, Morey J. Kolber, Abigail T. Wilson, Paul A. Salamh Aug 2023

The Influence Of Personality Type On Patient Outcome Measures And Therapeutic Alliance In Patients With Low Back Pain, William J. Hanney, Fahim Dhalla, Chase Kelly, Alicia Tomberlin, Morey J. Kolber, Abigail T. Wilson, Paul A. Salamh

HPD Articles

Background: Low back pain (LBP) has been shown to have various biological, psychological, and social factors that affect prognosis. However, it is unclear how personality may influence self-reported outcome measures and therapeutic alliance (TA). Methods: Eysenck’s personality inventory was used to assess personality, while the numeric pain rating scale (NPRS), Oswestry Disability Index (ODI), Tampa Scale of Kinesiophobia (TSK), Global Rating of Change (GROC), and the Working Alliance Inventory (WAI) measured patient progress and relationship strength. All outcome measures were formulated in a single survey that both the therapist and patient completed electronically. Results: Sixty-seven patients with LBP and twenty-two …


Novel Enhanced Recovery After Surgery Pathway Reduces Length Of Stay And Postoperative Opioid Usage In Adolescent Idiopathic Scoliosis Patients Undergoing Posterior Spinal Fusion, Kristen Spisak, Matthew Thomas, Zachary J. Sirois, Alvin Jones, Lucinda M. Brown, Andrew W. Froehle, Michael Albert Aug 2023

Novel Enhanced Recovery After Surgery Pathway Reduces Length Of Stay And Postoperative Opioid Usage In Adolescent Idiopathic Scoliosis Patients Undergoing Posterior Spinal Fusion, Kristen Spisak, Matthew Thomas, Zachary J. Sirois, Alvin Jones, Lucinda M. Brown, Andrew W. Froehle, Michael Albert

School of Health and Exercise Sciences Faculty Publications

Purpose: The goal of this study was to compare our institution’s recently implemented enhanced recovery after surgery (ERAS) protocol to previous post-operative management for adolescent idiopathic scoliosis patients undergoing posterior spinal fusion, specifically assessing length of stay, opioid consumption, and pain scores.

Methods: This is a retrospective analysis that compares the length of stay, opioid consumption, and pain scores of patients undergoing posterior spinal fusion for adolescent idiopathic scoliosis. Patients were analyzed prior to the implementation of our ERAS protocol, deemed the traditional pain pathway (TPP), to those who underwent the ERAS pathway. All patients undergoing posterior spinal fusion for …


Addressing Psychosocial Client Factors In People With Cancer: An Occupational Therapy Guidebook, Hannah Marlette, Steven M. Gerardi, Tiffany Bystra Aug 2023

Addressing Psychosocial Client Factors In People With Cancer: An Occupational Therapy Guidebook, Hannah Marlette, Steven M. Gerardi, Tiffany Bystra

Summer 2023 Virtual OTD Capstone Symposium

People with cancer have an increased risk of impaired occupational engagement and occupational performance due to the physical, cognitive, and psychosocial impacts of cancer and cancer treatment (Duker & Sleight, 2019; Pergolotti et al., 2016; Polo & Smith, 2018).

The involvement of occupational therapy (OT) in the care of people with cancer remains limited, resulting in a finite amount of literature on OT interventions to address this population (Pergolotti et al., 2016). The primary focus of OT for people with cancer has been on physical client factors and interventions, and people with cancer report that their psychosocial factors are being …


Occupational Therapy For Perinatal Women: An Online Educational Course, Rachel Killorin, Steven M. Gerardi, Sabina Khan Aug 2023

Occupational Therapy For Perinatal Women: An Online Educational Course, Rachel Killorin, Steven M. Gerardi, Sabina Khan

Summer 2023 Virtual OTD Capstone Symposium

A freely accessible website and online educational course was developed to inform occupational therapy practitioners and maternal healthcare professionals about the role that occupational therapy has on the perinatal healthcare team. Perinatal Occupational Therapy. https://www.perinataloccupationaltherapy.com/


Quantitative Benefits Of Reducing The Inferior Border Of Right-Sided Free Breathing Intact Breast Treatment Plans Regarding Liver Dose, Shelby Handshue Aug 2023

Quantitative Benefits Of Reducing The Inferior Border Of Right-Sided Free Breathing Intact Breast Treatment Plans Regarding Liver Dose, Shelby Handshue

Masters Projects

Introduction

Breast cancer is a prevalent disease in the United States, affecting approximately one in eight women during their lifetime (Leaver & Washington, 2010). Advancements in medical treatments have evolved from mastectomy to a multidisciplinary approach. Radiation therapy plays a crucial role in preventing local recurrence after breast conserving surgery. Traditionally, whole breast irradiation has been administered over 25-28 fractions to a total dose of 45-50 Gray (Gy), followed by a boost of 5-8 fractions to the tumor bed. In recent times, hypofractionation, which involves a shorter treatment schedule of 15-16 fractions to a total dose of 42.5 Gy, followed …


Hesi A2 Predictability Of Student Success, Cindy Smith Aug 2023

Hesi A2 Predictability Of Student Success, Cindy Smith

Doctor of Nursing Practice Projects

The nursing shortage has been linked to student retention and success in nursing education. Arkansas State University Beebe’s (ASUB) Practical Nursing program has experienced poor retention of students, which has indirectly affected the staffing of community healthcare partners. According to Twidwell et al. (2018), the Health Education Systems Incorporated Admission Assessment (HESI A2) positively correlated to student success. The ASUB nursing program acceptance protocol consists of ranking applicants related to HESI A2 composite scores without benchmark scores. Therefore, this Quality Improvement Project’s purpose was to determine if the students admitted to the program with a composite score of 75% or …


Shift Change: Minimizing The Covid-19 Nursing Shortage And Decreasing Nursing Burnout, Suzanne R. Baker Aug 2023

Shift Change: Minimizing The Covid-19 Nursing Shortage And Decreasing Nursing Burnout, Suzanne R. Baker

MSN Capstone Projects

Burnout and the nursing shortage of the healthcare system is not a new issue for nurses, but the COVID-19 pandemic caused this problem to only get worse (Young, 2021). Most healthcare facilities are severely understaffed. The nursing shortage and symptoms of burnout among nurses working in the Intensive Care Units (ICU) and other high-demand COVID-19 nursing units have been magnified by the COVID-19 pandemic. Inferior working conditions such as increased work times, increased workload, and decreased training in the care of COVID-19 patients magnified nursing burnout and the ongoing nursing shortage (Galanis et al., 2021). Discovering ways to reduce the …


Trends In Primary Care Visits And Diabetes Control For Type 2 Diabetics Before And During The Covid-19 Pandemic, Carole Berini Aug 2023

Trends In Primary Care Visits And Diabetes Control For Type 2 Diabetics Before And During The Covid-19 Pandemic, Carole Berini

MUSC Theses and Dissertations

Community health worker interventions have shown potential to improve health outcomes and reduce inequities particularly for patients with chronic diseases such as type 2 diabetes (T2D). However, there is a lack of support for CHW integration in the delivery of health care. The recent COVID pandemic may have affected outcomes for T2D patients and exacerbated existing inequities in care. This dissertation aimed to address three broad questions through three separate manuscripts. The first one was a systematic literature review to examine the impact of community health workers on health outcomes for rural US populations. The second and third papers used …


Addressing Psychosocial Client Factors In People With Cancer: An Occupational Therapy Guidebook, Hannah Marlette Aug 2023

Addressing Psychosocial Client Factors In People With Cancer: An Occupational Therapy Guidebook, Hannah Marlette

Student Capstone Papers

People with cancer experience a variety of physical, cognitive, and psychosocial impacts that affect their quality of life, occupational performance, and occupational engagement. Occupational therapy (OT) practitioners are well-equipped to address these impacts, however, OT is an underused service in the cancer population, resulting in a limited amount of literature addressing OT interventions in cancer care. OT interventions in the literature are focused on addressing an individual’s physical client factors. The focus on physical client factors is causing people with cancer to report that their psychosocial client factors are not being addressed. The literature demonstrates that OT practitioners do not …


Intouch Week Of August 7, 2023, New York Medical College Aug 2023

Unraveling The Serotonin Saga: From Discovery To Weight Regulation And Beyond – A Comprehensive Scientific Review, Kristine Conde, Shuzheng Fang, Yong Xu Aug 2023

Unraveling The Serotonin Saga: From Discovery To Weight Regulation And Beyond – A Comprehensive Scientific Review, Kristine Conde, Shuzheng Fang, Yong Xu

Faculty, Staff and Students Publications

The prevalence of obesity is rapidly increasing worldwide, while the development of effective obesity therapies lags behind. Although new therapeutic targets to alleviate obesity are identified every day, and drug efficacy is improving, adverse side effects and increased health risks remain serious issues facing the weight-loss industry. Serotonin, also known as 5-HT, has been extensively studied in relation to appetite reduction and weight loss. As a result, dozens of upstream and downstream neural targets of 5-HT have been identified, revealing a multitude of neural circuits involved in mediating the anorexigenic effect of 5-HT. Despite the rise and fall of several …


Fan1 Removes Triplet Repeat Extrusions Via A Pcna- And Rfc-Dependent Mechanism, Ashutosh S. Phadte, Mayuri Bhatia, Hope Ebert, Haaris Abdullah, Essam Abed Elrazaq, Konstantin E. Komolov, Anna Pluciennik Aug 2023

Fan1 Removes Triplet Repeat Extrusions Via A Pcna- And Rfc-Dependent Mechanism, Ashutosh S. Phadte, Mayuri Bhatia, Hope Ebert, Haaris Abdullah, Essam Abed Elrazaq, Konstantin E. Komolov, Anna Pluciennik

Department of Biochemistry and Molecular Biology Faculty Papers

Human genome-wide association studies have identified FAN1 and several DNA mismatch repair (MMR) genes as modifiers of Huntington’s disease age of onset. In animal models, FAN1 prevents somatic expansion of CAG triplet repeats, whereas MMR proteins promote this process. To understand the molecular basis of these opposing effects, we evaluated FAN1 nuclease function on DNA extrahelical extrusions that represent key intermediates in triplet repeat expansion. Here, we describe a strand-directed, extrusion-provoked nuclease function of FAN1 that is activated by RFC, PCNA, and ATP at physiological ionic strength. Activation of FAN1 in this manner results in DNA cleavage in the vicinity …


Traf3-Ewsr1 Signaling Axis Acts As A Checkpoint On Germinal Center Responses, Yanchuan Li, Lele Zhu, Chun-Jung Ko, Jin-Young Yang, Hongjiao Wang, Ganiraju Manyam, Jing Wang, Xuhong Cheng, Shuli Zhao, Zuliang Jie Aug 2023

Traf3-Ewsr1 Signaling Axis Acts As A Checkpoint On Germinal Center Responses, Yanchuan Li, Lele Zhu, Chun-Jung Ko, Jin-Young Yang, Hongjiao Wang, Ganiraju Manyam, Jing Wang, Xuhong Cheng, Shuli Zhao, Zuliang Jie

Faculty, Staff and Student Publications

The formation of germinal centers (GCs) is crucial for humoral immunity and vaccine efficacy. Constant stimulation through microbiota drives the formation of constitutive GCs in Peyer's patches (PPs), which generate B cells that produce antibodies against gut antigens derived from commensal bacteria and infectious pathogens. However, the molecular mechanism that regulates this persistent process is poorly understood. We report that Ewing Sarcoma Breakpoint Region 1 (EWSR1) is a brake to constitutive GC generation and immunoglobulin G (IgG) production in PPs, vaccination-induced GC formation, and IgG responses. Mechanistically, EWSR1 suppresses Bcl6 upregulation after antigen encounter, thereby negatively regulating induced GC B …


Psilocybin-Assisted Psychotherapy For Cancer-Related Anxiety And Depression, Dan Yaniv, Lois Michelle Ramondetta, Lorenzo Cohen, Moran Amit Aug 2023

Psilocybin-Assisted Psychotherapy For Cancer-Related Anxiety And Depression, Dan Yaniv, Lois Michelle Ramondetta, Lorenzo Cohen, Moran Amit

Faculty, Staff and Student Publications

No abstract provided.