Medical Specialties Commons^™

Wearable-Derived Heart Rate Variability Reveals Autonomic Dysfunction In Schizophrenia (Preprint), Alec J. Pupo, Stephanie H. Felgoise

Internal Medicine Resident Research

Autonomic dysfunction has long been implicated in schizophrenia, yet objective physiological markers remain underutilized in psychiatric research. Heart rate variability (HRV), a noninvasive measure of autonomic regulation, is conventionally derived from short electrocardiographic recordings. In this study, we tested whether continuous, wearable-derived HRV can identify physiologic alterations in schizophrenia-spectrum disorders. Using the NIH All of Us database, we analyzed second-level Fitbit heart rate data from 26 individuals with schizophrenia-spectrum diagnoses and 26 matched controls. Frequency-domain analyses focused on ultra-low frequency (ULF), very low frequency (VLF), and truncated low frequency (tLF) bands, given sampling constraints. Schizophrenia participants showed significantly reduced power …

Elevated Neutrophil-To-Lymphocyte Ratios In Schizophrenia: Insights From A Precision Medicine Cohort (Preprint), Alec J. Pupo, Connor J. Stinson, Chinwendu Madukwe, Stephanie H. Felgoise

Internal Medicine Resident Research

Systemic inflammation has been increasingly implicated in the pathophysiology of schizophrenia. The neutrophil-to-lymphocyte ratio (NLR), a readily available marker of systemic inflammation, has not been thoroughly investigated in large, demographically-matched schizophrenia cohorts. Using data from the All of Us Research Program, we analyzed participants with schizophrenia (n = 396) matched to controls (n = 396) by sex, race, and age. NLR was calculated as the ratio of each participant’s median neutrophil count to median lymphocyte count across all available measurements, excluding extreme values (NLR > 7). Distribution normality was assessed using the Shapiro–Wilk test, and group differences were evaluated with the …

Summary Of: Ai Diabetic Retinopathy Screening In A Primary Care Setting In Rural Maine, Rachel Heuer Md, Emma Daybranch Mph, Anastasia Tsomides Do, Jessica F. Dibiase Mph, Neil Korsen Md, Brian Nolan Md

Northern New England Clinical & Translational Research

Diabetic retinopathy (DR) is the leading cause of blindness globally. Early diagnosis and treatment reduce the risk of vision loss by 98%.

Study found @ "AI Diabetic Retinopathy Screening in a Primary Care Setting in Rural M" by Rachel Heuer, Emma DayBranch et al.

Magnetic And Ph-Sensitive Dual Actuation Of Biohybrid Microswimmer Of Targeted Drug Release Suitable For Cancer Cell Microenvironment, Richa Chaturvedi, Yumin Kang, Yunji Eom, Sri Ramulu Torati, Cheolgi Kim

Center for Bioelectronics Publications

The chemotherapeutic agents most frequently used in cancer treatment often have limited effectiveness because of their low specificity for tumors and poor therapeutic performance. In addition to the aforementioned therapeutic challenges the drug delivery carriers conjugated with the drug encounter early detection and elimination from the immune system before arriving at the affected area continues to be a significant research focus among researchers. To address this prevalent issue, an effective approach has been developed that leverages the physiological differences between normal and tumor tissue to enhance the efficacy of anticancer drugs. This drug delivery system is designed based on pH-sensitive …

Endoneurial Immune Interplay In Peripheral Nerve Repair: Insights And Implications For Future Therapeutic Interventions, Alina Sprenger-Svačina, Martin K R Svačina, Husniye G Otlu, Tong Gao, Kazim A Sheikh, Gang Zhang

Faculty, Staff and Student Publications

The mechanisms underlying axonal injury and repair in peripheral nerves, whether due to traumatic damage or autoimmune neuropathies, are complex and not yet fully understood. Recent research indicates that an orchestrated interplay between damaged neurons, Schwann cells, and especially endoneurial immune cells such as macrophages or T cells is crucial to achieve satisfactory nerve recovery. Following axonal injury, degenerating axons and reactive Schwann cells release chemoattractants and cytokines that recruit immune cells into the endoneurium. Among them, macrophages play a pivotal role by clearing axonal and myelin debris and subsequently creating a pro-regenerative microenvironment that supports axonal outgrowth. There is …

The Special Issue “The 20th Anniversary Of Pharmaceuticals—Multi-Targeted Natural Products As Therapeutics” Editorial—Multi-Targeted Therapeutics From Natural Sources: What Do We Know?, Elena Y. Enioutina, Katheleen M. Job, Catherine M.T. Sherwin

Pediatrics Faculty Publications

Herbal and marine products in the form of extracts, infusions, and decoctions have been used for centuries in folk and traditional medicine. Preparations typically contain multiple biologically active compounds. The World Health Organization (WHO) estimated that about 65% of consumers worldwide use natural remedies containing bioactive molecules to treat various diseases [1]. Most single-molecule drugs of natural origin were developed in the middle of the 20th century through the active screening of natural products for bioactive molecules [2]. Examples include artemisinin, cyclosporine, taxol, doxorubicin, and many others. However, at the beginning of the 21st century, we saw a decline in …

Impacts Of Ramadan Fasting During Pregnancy On Pregnancy And Birth Outcomes: An Umbrella Review, Abdullah Al-Taiar, Md Estiar Rahman, May Salama, Ali H. Ziyab, Wilfried Karmaus

Epidemiology, Biostatistics, & Environmental Health Faculty Publications

Background

Despite a large number of primary research studies, and systematic and narrative reviews, there is no consensus on the impact of fasting during Ramadan while pregnant on pregnancy and birth outcomes. Currently, there is no evidence-based guideline for Muslim women regarding Ramadan fasting during pregnancy and clinicians cannot provide firm recommendations.

Objectives

To review the current evidence regarding the impact of Ramadan fasting during pregnancy on pregnancy and birth outcomes.

Search Strategy

We conducted an umbrella review of all systematic and narrative reviews examining the impacts of fasting during Ramadan while pregnant on pregnancy and birth outcomes by searching …

Machine Learning Models For Pancreatic Cancer Survival Prediction: A Multi-Model Analysis Across Stages And Treatments Using The Surveillance, Epidemiology, And End Results (Seer) Database, Aditya Chakraborty, Mohan D. Pant

Epidemiology, Biostatistics, & Environmental Health Faculty Publications

Background: Pancreatic cancer is among the most lethal malignancies, with poor prognosis and limited survival despite treatment advances. Accurate survival modeling is critical for prognostication and clinical decision-making. This study had three primary aims: (1) to determine the best-fitting survival distribution among patients diagnosed and deceased from pancreatic cancer across stages and treatment types; (2) to construct and compare predictive risk classification models; and (3) to evaluate survival probabilities using parametric, semi-parametric, non-parametric, machine learning, and deep learning methods for Stage IV patients receiving both chemotherapy and radiation. Methods: Using data from the SEER database, parametric models (Generalized Extreme Value, …

Non-Enzymatic Glycoxidation Reports On Society, Environment And Biology To Inform On Enduring Cancer Disparities, Fariha Imtiaz, Boxiao Ding, Bradley A. Krisanits, Katherine A. Walter, Lindsay L. Peterson, Susan Steck, Marvella E. Ford, Gayenell Magwood, Victoria J. Findlay, David Turner

Annual Research Day

Background: Despite advancements in cancer treatment, disparities in incidence and mortality persist among different races and ethnicities. These disparities are influenced by an intricate interplay between environmental, biological and social factors that underscore the need for a multifaceted approach to understand this relationship. Objective/Aim: To show that advanced glycation end products (AGEs) due to non-enzymatic glycoxidation represent informative and functional markers that report on the combined impact of environmental, biological and social factors on enduring cancer disparities. Methods: To address this objective, a more holistic approach to disparities research was used ranging from basic research, population-based investigations, preclinical and clinical …

Learning Curve And Patient Outcomes Of Minimally Invasive Esophagectomy: One Surgeon’S 10-Year Experience, Moamad Chehab M.D., Cody Tragesser M.D, Franklin Geroudis M.D., Rebecca Deitch M.D., Anthony Cassano M.D., Rachit Shah M.D.

Annual Research Day

Objective: To examine the learning curve of one surgeon performing minimally invasive esophagectomy (MIE) over a 10-year period since the beginning of their practice with a focus on patient outcomes. Methods: This is a retrospective study of all patients undergoing MIE for malignancy by one surgeon at an academic high-volume tertiary center over a 10-year period (10/2012 to 9/2022). Patients were stratified into 2 equal groups based on chronological order and termed Early MIE and Late MIE. Primary outcomes included operative measures and patient outcomes over a 1- year period post-operatively. Results: A total of 128 patients were identified, divided …

The Collaborative Care Model And Depression Mediation Adherence, Remmy Rocha, Megan Mcclain, Anusha Mubin, Nicholas Morgenstern, Makenzie Maroney, Melanie Menning, Shannon Kinnan, Ryan W. Walters

Posters and Presentations: Family Medicine

No abstract provided.

An Evaluation Of The Association Between Female Reproductive Health Policy And Children's Health Outcomes, Kira Markowski, Rachel Bobko

Scholarship in Medicine - All Papers

Background: As policy pertaining to female reproductive health and education continues to be a central issue concerning Americans and a divisive focus of political campaigns, it is important to fully understand the ramifications of female reproductive health legislation not only on women’s health outcomes but also the health outcomes of children and adolescents.
Objective: We set out to identify how legislation and policy related to female reproductive health and education impacts the health and well-being of children and adolescents. By evaluating this relationship, we aim to show whether variations in policy correlate with variations in a child’s well-being as lawmakers …

A Rare Case Of Metastatic Myxofibrosarcoma To The Right Colon, Timothy K. Farrell, Matthew A. Carnell, Vincent J. Obias

Department Surgery Faculty Publications

Myxofibrosarcoma (MFS) is a common soft tissue sarcoma typically arising in the extremities of older adults. Metastatic spread usually involves the lungs, lymph nodes, or bone. We describe a rare case of metastatic MFS to the colon in a 76-year-old man, three years after surgical excision and radiation treatment for a left flank primary tumor. The patient presented with symptoms of obstipation and was found to have a 4 cm cecal mass confirmed by imaging and colonoscopy. Biopsy and surgical pathology confirmed metastatic MFS. A right colectomy was performed without complication. This case highlights an uncommon site of MFS metastasis …

A Diagnostic Challenge—Tinu Syndrome, Sophia Lee, Md, Claire Kassakian, Md

Books, Presentations, Posters, Etc.

Introduction: •TINU Syndrome: Tubulointerstitial Nephritis and Uveitis  rare multi-system syndrome  has renal manifestations typical of acute interstitial nephritis (AIN), in addition to bilateral anterior uveitis  not well-understood •Thought to be an immune-mediated process, although mechanisms for disease remain unclear  Likely secondary to a combination of genetic predisposition and certain environmental exposures •Genetic predisposition:  specific HLA phenotypes  possibly an auto-antigen to modified C-reactive protein (mCRP) •Potential triggers:  Infections: tuberculosis, EBV, varicella zoster, chlamydia, toxoplasma  Medications: antibiotics (β-lactams, meropenem, azithromycin, levofloxacin), NSAIDs, goreisan (Chinese herb)  Endocrine diseases: hypoparathyroidism, hyperparathyroidism, rheumatoid arthritis, IgG4-related autoimmune …

Case Study: A Severe Presentation Of Chronic Eosinophilic Pneumonia., Revati Kalluri, Mari Kai

Books, Presentations, Posters, Etc.

Case Presentation: Chief Complaint •55-year-old male with history of COPD, current 1 pack/day smoker, and 2-month history of hypoxic respiratory failure presents with increased shortness of breath. History of Present Illness •Initially hospitalized for a motor vehicle collision with course complicated by acute hypoxic respiratory failure due to eosinophilic pneumonia and treated with a 14-day prednisone taper. •Few days after discharge, he represented with acute hypoxic respiratory failure thought to be from a COPD exacerbation and treated with a short steroid taper. •Now, represents few days later with continued tachypnea, tachycardia, hypotension, and hypoxia.. Discussion: •Broad Differential including Pneumonia, Fat …

The Relationship Between Socioeconomic Factors And Low Birth Rates In Ohio, Ryan Gora, Hannah Amin

Scholarship in Medicine - All Papers

Background: The incidence of low birth weight (LBW) has not substantially fallen over time despite advances in medical interventions. LBW has been linked to several chronic diseases in adulthood including type 2 diabetes (T2DM) and cardiovascular disease (CVD), making it a particularly salient public health issue.
Objective: To examine socioeconomic factors and diseases associated with LBW in Ohio between 2016-2022.
Methods: Using data from County Health Rankings, we identified socioeconomic factors predictive of LBW in Ohio between 2016-2022. We also examined the relationship between LBW and incidence of T2DM as well as food insecurity (FI). In addition, we investigated how …

Educational Interventions To Improve Pediatric Emergency Care: A Qualitative Assessment Of The Perspectives Of African Healthcare Workers, Emily A. Hartford, Chris A. Rees, Isaac Kihurani, Raana Hussain, Elena Seifert, Alexis Schmid, Tigist Bacha, Carol C. Chen, Megan L. Schultz

Paediatrics and Child Health, East Africa

Pediatric emergency care (PEC) training for health care workers (HCWs) is commonly offered in the form of short courses. This study gathers the perspectives of HCWs from eight African countries on how to best deliver and implement short training courses in PEC. This is a qualitative study using semi-structured key informant (KI) interviews. Utilizing the African Federation for Emergency Medicine (AFEM) member list serve, we identified African HCWs who had previous experience participating in and/or delivering short training courses in PEC. From this cohort, four interviewers were selected. These interviewers all received training in qualitative interviewing and then each recruited …

Multimodal Wearable Intelligence For Dementia Care In Healthcare 4.0: A Survey, Po Yang, Gaoshan Bi, Jun Qi, Xulong Wang, Yun Yang, Li Da Xu

Information Technology & Decision Sciences Faculty Publications

As a new revolution of Ubiquitous Computing and Internet of Things, multimodal wearable intelligence technique is rapidly becoming a new research topic in both academic and industrial fields. Owning to the rapid spread of wearable and mobile devices, this technique is evolving healthcare from traditional hub-based systems to more personalised healthcare systems. This trend is well-aligned with recent "Healthcare 4.0" which is a continuous process of transforming the entire healthcare value chain to be preventive, precise, predictive and personalised, with significant benefits to elder care. But empowering the utility of multimodal wearable intelligence technique for elderly care like people with …

The Potential Of Bioactive Foods In Chemotherapy-Induced Gastrointestinal Distress, Haizhu Patterson

Nursing | Student Research Posters

Background: Cancer continues to have a profoundly detrimental impact on global health, and chemotherapy is widely accepted and utilized as one of the most effective cancer treatments. Unfortunately, the downside of chemotherapy is its significant adverse effects, which often manifest as gastrointestinal (GI) distress, leading the patient to discontinue treatment. Recent research has increasingly focused on bioactive foods as a means to mitigate chemotherapy-induced GI distress. By identifying which bioactive foods can alleviate these distresses, nurses can offer valuable recommendations to cancer patients to help them reduce chemotherapy's adverse effects, enhancing their quality of life (QoL) and improving treatment adherence. …

Awareness Of The Physiological Changes Occurring In Older Adults Can Reduce Dehydration And Electrolyte Imbalances, Lisa Isley

Nursing | Student Research Posters

Background: Individuals over 65 years are at an increased risk of dehydration. The physiological changes that occur with age and medication consumption can cause fluid and electrolyte imbalances that can physically and mentally impair individuals over 65 years old. Objective: By providing education to individuals 65 years and older regarding the significance of drinking water and consuming electrolytes daily, older adults can reduce their dehydration symptoms and improve their quality of life. Method: The proposed research is a quasi-experimental study geared towards individuals 65 years and older. The quasi-experimental study will include two pre-surveys and then two post-surveys. The survey …

The Psychosocial Effects Of Chemotherapy On The Adolescent Population: Implementing Community Building Programs, Kareena Jakhu, Princess Kyra R. Anicete

Nursing | Student Research Posters

Background: During the adolescent stage (13-18), individuals go through role confusion and seek much of their validation from their fellow peers. Forming a strong sense of community is crucial in this stage of development as it helps with creating a foundation for who they want to become. Chemotherapy strips this aspect of socialization due to its ability to suppress the immune system. When socialization is taken away, adolescents face loneliness, which greatly impacts their development. Purpose: The purpose of this research is to look into the adolescent population undergoing chemotherapy and help them aid the lack of socialization caused by …

Empowering Birth: Comparing Nurse-Led Holistic And Pharmacologic Pain Relief Approaches​, Jessica C. Moore

Nursing | Student Research Posters

Childbirth is often described as one of the most meaningful experiences in a woman’s life. During this time, effective pain management is essential not only for reducing discomfort, but also for improving maternal satisfaction and minimizing unnecessary obstetric interventions. While childbirth is frequently approached as a purely physical process, it is inherently holistic, influenced by cultural, social, psychological, and emotional factors.

Growing evidence highlights the value of incorporating and educating patients and providers on non-pharmacologic strategies such as breathing techniques, massage, aromatherapy, hydrotherapy, positioning ,ambulation, and continuous emotional support.

For example, a study in Sweden that found that a group …

Comparing Human Milk-Derived Vs Bovine-Derived Fortifiers In Formula-Fed Preterm Infants On The Incidence Of Necrotizing Enterocolitis, Maya C. Kern

Nursing | Student Research Posters

Necrotizing enterocolitis (NEC) is one of the leading causes of death in infants < 32 weeks gestation and/or < 1500g. Human breast milk lowers NEC rates through immunologic, microbial, and gut-protective mechanisms. When maternal or donor milk is unavailable, infants require formula with fortification but the safest type of fortifiers remains unclear. Bovine-derived fortifiers may increase gut inflammation; human milk-derived fortifiers may offer more protection. Limited research exists comparing these fortifiers when infants are exclusively formula fed. Determining if human milk-derived fortifiers still reduce NEC risk could influence NICU feeding guidelines and improve outcomes.

The Impact Of Nurse-Led Distraction Techniques On Pain And Anxiety During Cancer Treatment In Pediatric Oncology Patients: Examining Virtual Reality And Play Therapy, Alexis Abalos

Nursing | Student Research Posters

Children undergoing cancer treatment often experience pain and anxiety during procedures such as port access or peripheral catheterization. Nurse-led distraction techniques, including virtual reality and play therapy, have emerged as promising non-pharmacologic interventions to reduce pain and anxiety in pediatric oncology patients. Existing data from primary and secondary research articles reveal the effectiveness of virtual reality and play therapy on reducing pain, anxiety, and psychosocial distress in pediatric oncology patients receiving cancer treatment. This study proposes a quasi-experimental design involving 90 pediatric oncology patients aged 6–12 years diagnosed with leukemia. Participants will be placed in a nurse-led VR distraction, play …

Early Changes In Inflammation-Related Proteins In The Cerebrospinal Fluid And Plasma Of Patients With Aneurysmal Subarachnoid Hemorrhage, David J. Braun, Kevin W. Hatton, Justin F. Fraser, Robert M. Flight, Hunter N. B. Moseley, Caleb S. Bailey, Josh M. Morganti, Bingqing Zhang, Ishara S. Ariyapala, Tae K. Kim, Linda J. Van Eldik

Sanders-Brown Center on Aging Faculty Publications

Background

Aneurysmal subarachnoid hemorrhage (aSAH) is a relatively uncommon but high mortality form of stroke that can result in long-lasting disability. A better understanding of key neuroinflammatory changes during the early phase (< 72 h) may provide potential avenues of treatment.

Methods

In an attempt to understand these early changes, we recruited 7 aSAH patients for profiling of longitudinal plasma and cerebrospinal fluid (CSF) proteins at up to 72 h post injury. We additionally compared this to control plasma obtained previously from healthy elderly volunteers. Using the Alamar Biosciences NULISAseq platform, we obtained a comprehensive picture of early peripheral and central inflammatory changes after injury.

Results

This study …

Nicorandil Treatment Improves Survival And Spatial Learning In Aged Granulin Knockout Mice, Dana M. Niedowicz, Wang-Xia Wang, Paresh Prajapati, Yu Zhong, Shuling X. Fister, Colin B. Rogers, Pradoldej Sompol, David K. Powell, Indumati Patel, Christopher M. Norris, Kathryn E. Saatman, Peter T. Nelson

Sanders-Brown Center on Aging Faculty Publications

Mutations in the human granulin (GRN) gene are associated with multiple diseases, including dementia disorders such as frontotemporal dementia (FTD) and limbic-predominant age-related TDP-43 encephalopathy (LATE). We studied a Grn knockout (Grn-KO) mouse model in order to evaluate a potential therapeutic strategy for these diseases using nicorandil, a commercially available agonist for the ABCC9/Abcc9-encoded regulatory subunit of the “K⁺ATP” channel that is well-tolerated in humans. Aged (13 months) Grn-KO and wild-type (WT) mice were treated as controls or with nicorandil (15 mg/kg/day) in drinking water for 7 months, then tested for neurobehavioral …

Gait Variability As A Marker Of White Matter Integrity In Individuals With Down Syndrome, Elizabeth M. Leach, David K. Powell, Amanda C. Glueck, Elizabeth Head, Moaz W. Ibrahim, Amelia J. Anderson-Mooney, Kathryn L. Van Pelt, Jordan P. Harp, Frederick A. Schmitt, Ahmed A. Bahrani

Sanders-Brown Center on Aging Faculty Publications

Introduction: Individuals with Down syndrome (DS) face a significant risk of neurodegeneration, and gait variability may serve as a clinical biomarker of neurological health. This longitudinal parent substudy aimed to explore relationships between gait, white matter (WM) integrity, and cognitive function in DS.

Methods: The associations were investigated between magnetic resonance imaging diffusion tensor imaging (DTI), cognition, and self-paced gait data from 22 DS participants (mean age ± SD 37 ± 7.5 years).

Results: DTI measures, such as lower fractional anisotropy (FA) and higher mean diffusivity, were correlated with greater step time variability but not normalized velocities. Lower cognitive scores …

Disrupted Calcium Dynamics In Reactive Astrocytes Occur With End Feet–Arteriole Decoupling In An Amyloid Mouse Model Of Alzheimer’S Disease, Blaine Weiss, John C. Gant, Ruei-Lung Lin, Jenna L. Gollihue, Colin B. Rogers, Susan D. Kraner, Edmund B. Rucker, Yuriko Katsumata, Yang Jiang, Peter T. Nelson, Donna M. Wilcock, Pradoldej Sompol, Olivier Thibault, Christopher M. Norris

Sanders-Brown Center on Aging Faculty Publications

While cerebrovascular dysfunction and reactive astrocytosis are extensively characterized hallmarks of Alzheimer's disease (AD) and related dementias, the dynamic relationship between reactive astrocytes and cerebral vessels remains poorly understood. Here, we used jGCaMP8f and two-photon microscopy to investigate calcium signaling in multiple astrocyte subcompartments, concurrent with changes in cerebral arteriole activity, in fully awake 7- to 8-month-old male and female 5xFAD mice, a model for AD-like pathology, and wild-type (WT) littermates. In the absence of movement, spontaneous calcium transients in barrel cortex occurred more frequently in astrocyte somata, processes, and perivascular regions of 5xFAD mice. However, evoked arteriole dilations (in …

Electrochemical Detection Of Prostate Cancer—Associated Mirna-141 Using A Low-Cost Disposable Biosensor, Alexander Hunt, Gymama Slaughter

Center for Bioelectronics Publications

Prostate cancer is the second leading cause of cancer-related deaths among men in the United States. The early detection of aggressive forms is critical. Current diagnostic methods, including PSA testing and biopsies, are invasive and often yield false results. MicroRNA-141 (miRNA-141) has emerged as a promising non-invasive biomarker due to its elevated levels in the urine of patients with metastatic prostate cancer. Here, a low-cost, paper-based electrochemical biosensor for the sensitive detection of miRNA-141 in synthetic urine is reported. The device employs inkjet-printed gold electrodes on photopaper, functionalized with thiolated single-stranded DNA-141 capture probes for specific target recognition. The biosensor …

Electrical Homeostasis Of The Inner Mitochondrial Membrane Potential, Peyman Fahimi, Lázaro A. M. Castanedo, P. Thomas Vernier, Cherif F. Matta

Bioelectrics Publications

The electric potential across the inner mitochondrial membrane must be maintained within certain bounds for the proper functioning of the cell. A feedback control mechanism for the homeostasis of this membrane potential is proposed whereby an increase in the electric field decreases the rate-limiting steps of the electron transport chain (ETC). An increase in trans-membrane electric field limits the rate of proton pumping to the inter-membrane gap by slowing the ETC reactions and by intrinsically induced electroporation that depolarizes the inner membrane. The proposed feedback mechanism is akin to a Le Chatelier's-type principle of trans-membrane potential feedback control.