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Articles 301 - 330 of 598

Full-Text Articles in Health Services Research

Sall4 And Gata4 Induce Cardiac Fibroblast Transition Towards A Partially Multipotent State With Cardiogenic Potential, Hong Gao, Saliha Pathan, Beverly R E A Dixon, Aarthi Pugazenthi, Megumi Mathison, Tamer M A Mohamed, Todd K Rosengart, Jianchang Yang Oct 2024

Sall4 And Gata4 Induce Cardiac Fibroblast Transition Towards A Partially Multipotent State With Cardiogenic Potential, Hong Gao, Saliha Pathan, Beverly R E A Dixon, Aarthi Pugazenthi, Megumi Mathison, Tamer M A Mohamed, Todd K Rosengart, Jianchang Yang

Faculty, Staff and Students Publications

Cardiac cellular fate transition holds remarkable promise for the treatment of ischemic heart disease. We report that overexpressing two transcription factors, Sall4 and Gata4, which play distinct and overlapping roles in both pluripotent stem cell reprogramming and embryonic heart development, induces a fraction of stem-like cells in rodent cardiac fibroblasts that exhibit unlimited ex vivo expandability with clonogenicity. Transcriptomic and phenotypic analyses reveal that around 32 ± 6.4% of the expanding cells express Nkx2.5, while 13 ± 3.6% express Oct4. Activated signaling pathways like PI3K/Akt, Hippo, Wnt, and multiple epigenetic modification enzymes are also detected. Under suitable conditions, these cells …


Churning The Tides Of Care: When Nurse Turnover Makes Waves In Patient Access To Primary Care, Kelley Arredondo, Ashley M Hughes, Houston F Lester, Trang N D Pham, Laura A Petersen, Lechauncy Woodard, Richard Sorelle, Cheng Rebecca Jiang, Frederick L Oswald, Daniel R Murphy, Hilary N Touchett, Joshua Hamer, Sylvia J Hysong Oct 2024

Churning The Tides Of Care: When Nurse Turnover Makes Waves In Patient Access To Primary Care, Kelley Arredondo, Ashley M Hughes, Houston F Lester, Trang N D Pham, Laura A Petersen, Lechauncy Woodard, Richard Sorelle, Cheng Rebecca Jiang, Frederick L Oswald, Daniel R Murphy, Hilary N Touchett, Joshua Hamer, Sylvia J Hysong

Faculty, Staff and Students Publications

BACKGROUND: Team-based primary care (PC) enhances the quality of and access to health care. The Veterans Health Administration (VHA) implements team-based care through Patient Aligned Care Teams (PACTs), consisting of four core members: a primary care provider, registered nurse (RN) care manager, licensed vocational nurse, and scheduling clerk. RNs play a central role: they coordinate patient care, manage operational needs, and serve as a patient point of contact. Currently, it is not known how varying levels of RN staffing on primary care teams impact patient outcomes.

OBJECTIVE: This study aims to empirically assess how the stability of RN staffing within …


Gender And Sexuality Awareness In Medical Education And Practice: Mixed Methods Study, Rola Khamisy-Farah, Eden Biras, Rabie Shehadeh, Ruba Tuma, Hisham Atwan, Anna Siri, Manlio Converti, Francesco Chirico, Łukasz Szarpak, Carlo Biz, Raymond Farah, Nicola Bragazzi Oct 2024

Gender And Sexuality Awareness In Medical Education And Practice: Mixed Methods Study, Rola Khamisy-Farah, Eden Biras, Rabie Shehadeh, Ruba Tuma, Hisham Atwan, Anna Siri, Manlio Converti, Francesco Chirico, Łukasz Szarpak, Carlo Biz, Raymond Farah, Nicola Bragazzi

Faculty, Staff and Students Publications

BACKGROUND: The integration of gender and sexuality awareness in health care is increasingly recognized as vital for patient outcomes. Despite this, there is a notable lack of comprehensive data on the current state of physicians' training and perceptions in these areas, leading to a gap in targeted educational interventions and optimal health care delivery.

OBJECTIVE: The study's aim was to explore the experiences and perceptions of attending and resident physicians regarding the inclusion of gender and sexuality content in medical school curricula and professional practice in Israel.

METHODS: This cross-sectional survey targeted a diverse group of physicians across various specializations …


In Acute Severe Ulcerative Colitis Patients Who Receive Rescue Therapy, Prior Maintenance Therapy And Day 3 C-Reactive Protein After Rescue Therapy Are Associated With 12-Month Colectomy Risk, Jared A Sninsky, Ana-Maria Staicu, Edward L Barnes Oct 2024

In Acute Severe Ulcerative Colitis Patients Who Receive Rescue Therapy, Prior Maintenance Therapy And Day 3 C-Reactive Protein After Rescue Therapy Are Associated With 12-Month Colectomy Risk, Jared A Sninsky, Ana-Maria Staicu, Edward L Barnes

Faculty, Staff and Students Publications

No abstract provided.


Are Veterans At Increased Risk Of Myeloproliferative Neoplasms?, Christin B Destefano, Nicholas Burwick, Drew A Helmer Oct 2024

Are Veterans At Increased Risk Of Myeloproliferative Neoplasms?, Christin B Destefano, Nicholas Burwick, Drew A Helmer

Faculty, Staff and Students Publications

No abstract provided.


Inhaled Corticosteroids Attenuate The Association Of Fine Particulate Matter And Acute Asthma Events, Kristen A Staggers, Paula Sierra, Drew A Helmer, Charles Minard, Meredith C Mccormack, Tianshi David Wu Oct 2024

Inhaled Corticosteroids Attenuate The Association Of Fine Particulate Matter And Acute Asthma Events, Kristen A Staggers, Paula Sierra, Drew A Helmer, Charles Minard, Meredith C Mccormack, Tianshi David Wu

Faculty, Staff and Students Publications

No abstract provided.


Influenza C Virus In Us Children With Acute Respiratory Infection 2016–2019, Bethany K Sederdahl, Geoffrey A Weinberg, Angela P Campbell, Rangaraj Selvarangan, Jennifer E Schuster, Joana Y Lively, Samantha M Olson, Julie A Boom, Pedro A Piedra, Natasha B Halasa, Laura Stewart, Peter G Szilagyi, G K Balasubramani, Theresa Sax, Judith M Martin, Robert W Hickey, Marian G Michaels, John V Williams, New Vaccine Surveillance Network Oct 2024

Influenza C Virus In Us Children With Acute Respiratory Infection 2016–2019, Bethany K Sederdahl, Geoffrey A Weinberg, Angela P Campbell, Rangaraj Selvarangan, Jennifer E Schuster, Joana Y Lively, Samantha M Olson, Julie A Boom, Pedro A Piedra, Natasha B Halasa, Laura Stewart, Peter G Szilagyi, G K Balasubramani, Theresa Sax, Judith M Martin, Robert W Hickey, Marian G Michaels, John V Williams, New Vaccine Surveillance Network

Faculty, Staff and Students Publications

Influenza C virus (ICV) is an orthomyxovirus related to influenza A and B, yet due to few commercial assays, epidemiologic studies may underestimate incidence of ICV infection and disease. We describe the epidemiology and characteristics of ICV within the New Vaccine Surveillance Network (NVSN), a Centers for Disease Control and Prevention (CDC)-led network that conducts population-based surveillance for pediatric acute respiratory illness (ARI). Nasal or/combined throat swabs were collected from emergency department (ED) or inpatient ARI cases, or healthy controls, between 12/05/2016-10/31/2019 and tested by molecular assays for ICV and other respiratory viruses. Parent surveys and chart review were used …


Evaluating Progress And Accountability For Achieving Cop26 Health Programme International Ambitions For Sustainable, Low-Carbon, Resilient Health-Care Systems, Iris Martine Blom, Fawzia N Rasheed, Hardeep Singh, Matthew J Eckelman, Meghnath Dhimal, Martin Hensher, Renzo R Guinto, Alice Mcgushin, Xuejuan Ning, Poornima Prabhakaran, Marina Romanello, Dana Van Alphen, Nick Watts, Jessica C Yu, Carol Zavaleta-Cortijo, Andrea J Macneill, Jodi D Sherman Oct 2024

Evaluating Progress And Accountability For Achieving Cop26 Health Programme International Ambitions For Sustainable, Low-Carbon, Resilient Health-Care Systems, Iris Martine Blom, Fawzia N Rasheed, Hardeep Singh, Matthew J Eckelman, Meghnath Dhimal, Martin Hensher, Renzo R Guinto, Alice Mcgushin, Xuejuan Ning, Poornima Prabhakaran, Marina Romanello, Dana Van Alphen, Nick Watts, Jessica C Yu, Carol Zavaleta-Cortijo, Andrea J Macneill, Jodi D Sherman

Faculty, Staff and Students Publications

A global initiative to develop low-carbon, resilient health systems-the COP26 Health Programme-launched at the UN Framework Convention on Climate Change 26th Conference of the Parties (COP26) in 2021. As of May, 2024, 83 nations have committed to participate in this initiative. This analysis evaluates the effectiveness of existing and proposed indicators towards public monitoring and accountability to these commitments. Our findings reveal substantial gaps in data availability and indicator relevance, with many countries reporting process indicators that do not reflect actual progress towards achieving sustainable health-care systems. We found a dearth of suitable indicators and an urgent need to develop …


Perineuronal Nets’ Role In Metabolism, Nan Zhang, Beite Song, Peng Bai, Li Du, Lulu Chen, Yong Xu, Tianshu Zeng Oct 2024

Perineuronal Nets’ Role In Metabolism, Nan Zhang, Beite Song, Peng Bai, Li Du, Lulu Chen, Yong Xu, Tianshu Zeng

Faculty, Staff and Students Publications

Perineuronal nets (PNNs), specialized extracellular matrix (ECM) structures that envelop neurons, have recently been recognized as key players in the regulation of metabolism. This review explores the growing body of knowledge concerning PNNs and their role in metabolic control, drawing insights from recent research and relevant studies. The pivotal role of PNNs in the context of energy balance and whole body blood glucose is examined. This review also highlights novel findings, including the effects of astroglia, microglia, sex and gonadal hormones, nutritional regulation, circadian rhythms, and age on PNNs dynamics. These findings illuminate the complex and multifaceted role of PNNs …


Rotavirus Vaccine Effectiveness Against Severe Acute Gastroenteritis: 2009-2022, Alpha Oumar Diallo, Mary E Wikswo, Iddrisu Sulemana, Leila C Sahni, Julie A Boom, Sasirekha Ramani, Rangaraj Selvarangan, Mary E Moffatt, Christopher J Harrison, Natasha Halasa, James Chappell, Laura Stewart, Mary Allen Staat, Elizabeth Schlaudecker, Christina Quigley, Eileen J Klein, Janet A Englund, Danielle M Zerr, Geoffrey A Weinberg, Peter G Szilagyi, Christina Albertin, Samantha H Johnston, John V Williams, Marian G Michaels, Robert W Hickey, Aaron T Curns, Michelle Honeywood, Slavica Mijatovic-Rustempasic, Mathew D Esona, Michael D Bowen, Umesh D Parashar, Rashi Gautam, Sara A Mirza, Jacqueline E Tate Oct 2024

Rotavirus Vaccine Effectiveness Against Severe Acute Gastroenteritis: 2009-2022, Alpha Oumar Diallo, Mary E Wikswo, Iddrisu Sulemana, Leila C Sahni, Julie A Boom, Sasirekha Ramani, Rangaraj Selvarangan, Mary E Moffatt, Christopher J Harrison, Natasha Halasa, James Chappell, Laura Stewart, Mary Allen Staat, Elizabeth Schlaudecker, Christina Quigley, Eileen J Klein, Janet A Englund, Danielle M Zerr, Geoffrey A Weinberg, Peter G Szilagyi, Christina Albertin, Samantha H Johnston, John V Williams, Marian G Michaels, Robert W Hickey, Aaron T Curns, Michelle Honeywood, Slavica Mijatovic-Rustempasic, Mathew D Esona, Michael D Bowen, Umesh D Parashar, Rashi Gautam, Sara A Mirza, Jacqueline E Tate

Faculty, Staff and Students Publications

Background: Rotavirus was the leading cause of acute gastroenteritis among US children until vaccine introduction in 2006, after which, substantial declines in severe rotavirus disease occurred. We evaluated rotavirus vaccine effectiveness (VE) over 13 years (2009-2022).

Methods: We analyzed data from the New Vaccine Surveillance Network using a test-negative case-control design to estimate rotavirus VE against laboratory-confirmed rotavirus infections among children seeking care for acute gastroenteritis (≥3 diarrhea or ≥1 vomiting episodes within 24 hours) in the emergency department (ED) or hospital. Case-patients and control-patients were children whose stool specimens tested rotavirus positive or negative, respectively, by enzyme immunoassay or …


Linkage Between Fuz And Gpr161 Genes Regulates Sonic Hedgehog Signaling During Mouse Neural Tube Development, Sung-Eun Kim, Hyun-Yi Kim, Bogdan J Wlodarczyk, Richard H Finnell Oct 2024

Linkage Between Fuz And Gpr161 Genes Regulates Sonic Hedgehog Signaling During Mouse Neural Tube Development, Sung-Eun Kim, Hyun-Yi Kim, Bogdan J Wlodarczyk, Richard H Finnell

Faculty, Staff and Students Publications

Sonic hedgehog (Shh) signaling regulates embryonic morphogenesis utilizing the primary cilium, the cell's antenna, which acts as a signaling hub. Fuz, an effector of planar cell polarity signaling, regulates Shh signaling by facilitating cilia formation, and the G protein-coupled receptor 161 (Gpr161) is a negative regulator of Shh signaling. The range of phenotypic malformations observed in mice bearing mutations in either of the genes encoding these proteins is similar; however, their functional relationship has not been previously explored. This study identified the genetic and biochemical linkage between Fuz and Gpr161 in mouse neural tube development. Fuz was found to be …


A Framework For Human Evaluation Of Large Language Models In Healthcare Derived From Literature Review, Thomas Yu Chow Tam, Sonish Sivarajkumar, Sumit Kapoor, Alisa V Stolyar, Katelyn Polanska, Karleigh R Mccarthy, Hunter Osterhoudt, Xizhi Wu, Shyam Visweswaran, Sunyang Fu, Piyush Mathur, Giovanni E Cacciamani, Cong Sun, Yifan Peng, Yanshan Wang Sep 2024

A Framework For Human Evaluation Of Large Language Models In Healthcare Derived From Literature Review, Thomas Yu Chow Tam, Sonish Sivarajkumar, Sumit Kapoor, Alisa V Stolyar, Katelyn Polanska, Karleigh R Mccarthy, Hunter Osterhoudt, Xizhi Wu, Shyam Visweswaran, Sunyang Fu, Piyush Mathur, Giovanni E Cacciamani, Cong Sun, Yifan Peng, Yanshan Wang

Faculty, Staff and Student Publications

With generative artificial intelligence (GenAI), particularly large language models (LLMs), continuing to make inroads in healthcare, assessing LLMs with human evaluations is essential to assuring safety and effectiveness. This study reviews existing literature on human evaluation methodologies for LLMs in healthcare across various medical specialties and addresses factors such as evaluation dimensions, sample types and sizes, selection, and recruitment of evaluators, frameworks and metrics, evaluation process, and statistical analysis type. Our literature review of 142 studies shows gaps in reliability, generalizability, and applicability of current human evaluation practices. To overcome such significant obstacles to healthcare LLM developments and deployments, we …


Sequencing-Based Detection Of Avian Influenza A(H5n1) Virus In Wastewater In Ten Cities, Michael J Tisza, Blake M Hanson, Justin R Clark, Li Wang, Katelyn Payne, Matthew C Ross, Kristina D Mena, Anna Gitter, Sara J Javornik Cregeen, Juwan Cormier, Vasanthi Avadhanula, Austen Terwilliger, John Balliew, Fuqing Wu, Janelle Rios, Jennifer Deegan, Pedro A Piedra, Joseph F Petrosino, Eric Boerwinkle, Anthony W Maresso Sep 2024

Sequencing-Based Detection Of Avian Influenza A(H5n1) Virus In Wastewater In Ten Cities, Michael J Tisza, Blake M Hanson, Justin R Clark, Li Wang, Katelyn Payne, Matthew C Ross, Kristina D Mena, Anna Gitter, Sara J Javornik Cregeen, Juwan Cormier, Vasanthi Avadhanula, Austen Terwilliger, John Balliew, Fuqing Wu, Janelle Rios, Jennifer Deegan, Pedro A Piedra, Joseph F Petrosino, Eric Boerwinkle, Anthony W Maresso

Faculty, Staff and Students Publications

No abstract provided.


Examining Management And Employees' Perceptions Of Occupational Heat Exposure And The Effectiveness Of A Heat Stress Prevention Intervention On Safety And Well-Being Among Natural Gas Construction Workers: A Qualitative Field-Based Study, Muinat Abolore Idris, Christine Markham, Kristina D Mena, William B Perkison Sep 2024

Examining Management And Employees' Perceptions Of Occupational Heat Exposure And The Effectiveness Of A Heat Stress Prevention Intervention On Safety And Well-Being Among Natural Gas Construction Workers: A Qualitative Field-Based Study, Muinat Abolore Idris, Christine Markham, Kristina D Mena, William B Perkison

Faculty, Staff and Student Publications

BACKGROUND: Numerous risk factors have been identified as significantly influencing outdoor workers' risk for heat stress and heat-related conditions, impacting their health, well-being, and productivity. However, the specific effects of these factors on construction workers' safety, health, and well-being remain under-researched. With climate change increasing temperatures, assessing heat stress among construction workers is imperative.

OBJECTIVE: To identify the barriers and facilitators influencing the safety of natural gas construction workers and evaluate an implemented heat stress intervention.

METHODS: In the summer of 2023, two semi-structured interviews and six focus groups were conducted with twenty-one stakeholders at a Texas natural gas construction …


Implementation Of Healthy Heart Ambassador To Improve Blood Pressure Control At Community Health Centers In Texas, Natalia I Heredia, Ella R Garza, Fernanda Velasco-Huerta, Tracy L Swoboda, Pierre Fwelo, Patenne D Mathews, Maria E Fernandez Sep 2024

Implementation Of Healthy Heart Ambassador To Improve Blood Pressure Control At Community Health Centers In Texas, Natalia I Heredia, Ella R Garza, Fernanda Velasco-Huerta, Tracy L Swoboda, Pierre Fwelo, Patenne D Mathews, Maria E Fernandez

Faculty, Staff and Student Publications

BACKGROUND: Hypertension is one of the most prevalent chronic diseases in the United States and can increase a person's risk of stroke and other cardiovascular complications. Yet only 1 in 4 people with high blood pressure in the United States have their blood pressure managed. To improve hypertension control, we supported 9 health centers in Texas with the implementation of the Healthy Heart Ambassador Blood Pressure Self-Monitoring (HHA) Program.

METHODS: We provided health center training using the HHA Program Facilitation Training Guide, recorded barriers to implementing the HHA program, and employed strategies to overcome those barriers.

RESULTS: There were 68 …


Rethinking Health Systems Responsiveness In Low- And Middle-Income Countries: Validation Study, Meesha Iqbal, Cecilia Ganduglia Cazaban, Robert Morgan, Cici Bauer, Sameen Siddiqi Sep 2024

Rethinking Health Systems Responsiveness In Low- And Middle-Income Countries: Validation Study, Meesha Iqbal, Cecilia Ganduglia Cazaban, Robert Morgan, Cici Bauer, Sameen Siddiqi

Faculty, Staff and Student Publications

BACKGROUND: Health systems responsiveness (HSR) is the ability of systems to respond to legitimate non-health expectations of the population. The concept of HSR by the World Health Organization (WHO) includes respect for dignity, individual autonomy, confidentiality, prompt attention to care, availability of basic amenities, choice of provider, access to social support networks, and clarity of communication. The WHO tool is applied globally to assess HSR in low, middle, and high-income countries.

OBJECTIVE: We have revised the conceptual framework of HSR following a rigorous systematic review and made it specific for low- and middle-income countries (L&MICs). This study is designed to …


Final Outcomes From A Phase 2 Trial Of Posoleucel In Allogeneic Hematopoietic Cell Transplant Recipients, Sanjeet S Dadwal, Rajat Bansal, Michael W Schuster, Jean A Yared, Gary Douglas Myers, Michelle Matzko, Sama Adnan, David Mcneel, Julie Ma, Sarah A Gilmore, Spyridoula Vasileiou, Ann M Leen, Joshua A Hill, Jo-Anne H Young Sep 2024

Final Outcomes From A Phase 2 Trial Of Posoleucel In Allogeneic Hematopoietic Cell Transplant Recipients, Sanjeet S Dadwal, Rajat Bansal, Michael W Schuster, Jean A Yared, Gary Douglas Myers, Michelle Matzko, Sama Adnan, David Mcneel, Julie Ma, Sarah A Gilmore, Spyridoula Vasileiou, Ann M Leen, Joshua A Hill, Jo-Anne H Young

Faculty, Staff and Students Publications

Allogeneic hematopoietic cell transplantation (allo-HCT) recipients are susceptible to viral infections. We conducted a phase 2 trial evaluating the safety and rate of clinically significant infections (CSIs; viremia requiring treatment or end-organ disease) after infusion of posoleucel, a partially HLA-matched, allogeneic, off-the-shelf, multivirus-specific T-cell investigational product for preventing CSIs with adenovirus, BK virus, cytomegalovirus, Epstein-Barr virus, human herpesvirus-6, or JC virus. This open-label trial enrolled allo-HCT recipients at high risk based on receiving grafts from umbilical cord blood, haploidentical, mismatched, or matched unrelated donors; post-HCT lymphocytes of < 180/mm3; or use of T-cell depletion. Posoleucel dosing was initiated within 15 to 49 days of allo-HCT and subsequently every 14 days for up to 7 doses. The primary end point was the number of CSIs due to the 6 target viruses by week 14. Of the 26 patients enrolled, only 3 (12%) had a CSI by week 14, each with a single target virus. In vivo expansion of functional virus-specific T cells detected via interferon-γ enzyme-linked immunosorbent spot assay was associated with viral control. Persistence of posoleucel-derived T-cell clones for up to 14 weeks after the last infusion was confirmed by T-cell–receptor deep sequencing. Five patients (19%) had acute graft-versus-host disease grade 2 to 4. No patient experienced cytokine release syndrome. All 6 deaths were due to relapse or disease progression. allo-HCT recipients at high risk who received posoleucel had low rates of CSIs from 6 targeted viruses. Repeat posoleucel dosing was generally safe and well tolerated and associated with functional immune reconstitution.


Hyperglycemia And Venous Thromboembolism, Neha Panchagnula, William Philip Brasher Sep 2024

Hyperglycemia And Venous Thromboembolism, Neha Panchagnula, William Philip Brasher

Faculty, Staff and Students Publications

Patients with diabetes mellitus (DM) have chronically increased blood glucose and multiple physiologic alterations that place them at elevated risk for vascular disease. Traditionally, this vascular risk has mainly referred to chronic atherosclerosis and embolic arterial disease. Retrospective studies have suggested an increased risk of a pulmonary embolism (PE) and deep vein thrombosis (DVT), collectively termed venous thromboembolism (VTE), in patients with DM, but this association has been difficult to demonstrate with comorbidities such as obesity in meta-analysis. Clinical studies have demonstrated worse outcomes for patients with DM who suffer from VTE. In vitro studies show multiple physiologic abnormalities with …


Human Papillomavirus Vaccination And Human Papillomavirus-Related Cancer Rates, Victor Adekanmbi, Itunu Sokale, Fangjian Guo, Jessica Ngo, Thao N Hoang, Christine D Hsu, Abiodun Oluyomi, Abbey B Berenson Sep 2024

Human Papillomavirus Vaccination And Human Papillomavirus-Related Cancer Rates, Victor Adekanmbi, Itunu Sokale, Fangjian Guo, Jessica Ngo, Thao N Hoang, Christine D Hsu, Abiodun Oluyomi, Abbey B Berenson

Faculty, Staff and Students Publications

IMPORTANCE: To inform the design and implementation of targeted interventions to reduce the future burden of human papillomavirus (HPV)-related cancers in Texas, it is necessary to examine the county and health service region (HSR) levels of (1) the proportion of children and teenagers aged 9 to 17 years who initiated and were up to date for HPV vaccination series and (2) HPV-related cancer incidence rates (IRs).

OBJECTIVE: To evaluate temporal trends and geospatial patterns of HPV vaccination initiation and up-to-date status as well as HPV-related cancer rates at county and HSR levels in Texas.

DESIGN, SETTING, AND PARTICIPANTS: This population-based …


Prolonged Cytopenias After Immune Effector Cell Therapy And Lymphodepletion In Patients With Leukemia, Lymphoma And Solid Tumors, Anne Miller, Rachel Daum, Tao Wang, Mengfen Wu, Candise Tat, Thomas Pfeiffer, Shoba Navai, Andras Heczey, Meenakshi Hegde, Nabil Ahmed, Sarah B Whittle, Laquisa Hill, Caridad Martinez, Robert Krance, Carlos A Ramos, Rayne H Rouce, Premal Lulla, Helen E Heslop, Bilal Omer, Meghan Shekar Sep 2024

Prolonged Cytopenias After Immune Effector Cell Therapy And Lymphodepletion In Patients With Leukemia, Lymphoma And Solid Tumors, Anne Miller, Rachel Daum, Tao Wang, Mengfen Wu, Candise Tat, Thomas Pfeiffer, Shoba Navai, Andras Heczey, Meenakshi Hegde, Nabil Ahmed, Sarah B Whittle, Laquisa Hill, Caridad Martinez, Robert Krance, Carlos A Ramos, Rayne H Rouce, Premal Lulla, Helen E Heslop, Bilal Omer, Meghan Shekar

Faculty, Staff and Students Publications

Background aims: The success of chimeric antigen receptor (CAR) T-cell therapy in treating B-cell malignancies has led to the evaluation of CAR T-cells targeting a variety of other malignancies. Although the efficacy of CAR T-cells is enhanced when administered post-lymphodepleting chemotherapy, this can trigger bone marrow suppression and sustained cytopenia after CD19.CAR T-cell therapy. Additionally, systemic inflammation associated with CAR T-cell activity may contribute to myelosuppression. Cytopenias, such as neutropenia and thrombocytopenia, elevate the risk of severe infections and bleeding, respectively. However, data on the incidence of prolonged cytopenias after immune effector therapy in the solid tumor context remain limited. …


Enterococcus Faecalis-Derived Adenine Enhances Enterohaemorrhagic Escherichia Coli Type 3 Secretion System-Dependent Virulence, Fernando H Martins, Thibaut Rosay, Anubama Rajan, Hannah E Carter, Tayah Turocy, Andres Mejia, Jason M Crawford, Anthony W Maresso, Vanessa Sperandio Sep 2024

Enterococcus Faecalis-Derived Adenine Enhances Enterohaemorrhagic Escherichia Coli Type 3 Secretion System-Dependent Virulence, Fernando H Martins, Thibaut Rosay, Anubama Rajan, Hannah E Carter, Tayah Turocy, Andres Mejia, Jason M Crawford, Anthony W Maresso, Vanessa Sperandio

Faculty, Staff and Students Publications

Interactions between microbiota and enteric pathogens can promote colonization resistance or enhance pathogenesis. The pathobiont Enterococcus faecalis increases enterohaemorrhagic E. coli (EHEC) virulence by upregulating Type 3 Secretion System (T3SS) expression, effector translocation, and attaching and effacing (AE) lesion formation on enterocytes, but the mechanisms underlying this remain unknown. Using co-infection of organoids, metabolomics, supplementation experiments and bacterial genetics, here we show that co-culture of EHEC with E. faecalis increases the xanthine-hypoxanthine pathway activity and adenine biosynthesis. Adenine or E. faecalis promoted T3SS gene expression, while transcriptomics showed upregulation of adeP expression, which encodes an adenine importer. Mechanistically, adenine relieved …


A Novel Deep Learning Model Based On Transformer And Cross Modality Attention For Classification Of Sleep Stages, Sahar Hassanzadeh Mostafaei, Jafar Tanha, Amir Sharafkhaneh Sep 2024

A Novel Deep Learning Model Based On Transformer And Cross Modality Attention For Classification Of Sleep Stages, Sahar Hassanzadeh Mostafaei, Jafar Tanha, Amir Sharafkhaneh

Faculty, Staff and Students Publications

The classification of sleep stages is crucial for gaining insights into an individual's sleep patterns and identifying potential health issues. Employing several important physiological channels in different views, each providing a distinct perspective on sleep patterns, can have a great impact on the efficiency of the classification models. In the context of neural networks and deep learning models, transformers are very effective, especially when dealing with time series data, and have shown remarkable compatibility with sequential data analysis as physiological channels. On the other hand, cross-modality attention by integrating information from multiple views of the data enables to capture relationships …


A Case Of Persistent Intra-Abdominal Stenotrophomonas Maltophilia Infection Despite Bacteriophage Therapy, Grace D Cullen, Keiko Christine Salazar, Austen Lee Terwilliger, Saima Aslam, Justin R Clark, Anthony W Maresso, Paul L Bollyky, Jenny R Aronson Sep 2024

A Case Of Persistent Intra-Abdominal Stenotrophomonas Maltophilia Infection Despite Bacteriophage Therapy, Grace D Cullen, Keiko Christine Salazar, Austen Lee Terwilliger, Saima Aslam, Justin R Clark, Anthony W Maresso, Paul L Bollyky, Jenny R Aronson

Faculty, Staff and Students Publications

Multidrug resistant infections are a challenge in the health care setting and a cause of patient morbidity and mortality. Bacteriophages (phages) are viruses that target and kill bacteria and have been used in patients to treat bacterial infections. We present a case of disseminated Stenotrophomonas maltophilia infection, with pulmonary, intra-abdominal and bloodstream involvement. The patient was treated with a combination of antibiotics and personalized phage therapy, administered daily for 12 days both intravenously as well as via intra-abdominal drains. Phage therapy was well-tolerated, the patient cleared S. maltophilia from their bloodstream and their intra-abdominal abscesses were stable or decreased in …


Disruption Of Fuz In Mouse Embryos Generates Hypoplastic Hindbrain Development And Reduced Cranial Nerve Ganglia, Carlo Donato Caiaffa, Yogeshwari S Ambekar, Manmohan Singh, Ying Linda Lin, Bogdan Wlodarczyk, Salavat R Aglyamov, Giuliano Scarcelli, Kirill V Larin, Richard H Finnell Sep 2024

Disruption Of Fuz In Mouse Embryos Generates Hypoplastic Hindbrain Development And Reduced Cranial Nerve Ganglia, Carlo Donato Caiaffa, Yogeshwari S Ambekar, Manmohan Singh, Ying Linda Lin, Bogdan Wlodarczyk, Salavat R Aglyamov, Giuliano Scarcelli, Kirill V Larin, Richard H Finnell

Faculty, Staff and Students Publications

Background: The brain and spinal cord formation is initiated in the earliest stages of mammalian pregnancy in a highly organized process known as neurulation. Environmental or genetic interferences can impair neurulation, resulting in clinically significant birth defects known collectively as neural tube defects. The Fuz gene encodes a subunit of the CPLANE complex, a macromolecular planar polarity effector required for ciliogenesis. Ablation of Fuz in mouse embryos results in exencephaly and spina bifida, including dysmorphic craniofacial structures due to defective cilia formation and impaired Sonic Hedgehog signaling.

Results: We demonstrate that knocking Fuz out during embryonic mouse development results in …


A Prospective Cohort Study Of Pregnancy Outcomes Following Antepartum Infection With Sars-Cov-2, James D Doss, Emily Diveley, Fan Zhang, Amy Scheffer, Ruizhi Huang, Daniel Jackson, Nandini Raghuraman, Ebony B Carter, Indira U Mysorekar, Jeannie C Kelly Sep 2024

A Prospective Cohort Study Of Pregnancy Outcomes Following Antepartum Infection With Sars-Cov-2, James D Doss, Emily Diveley, Fan Zhang, Amy Scheffer, Ruizhi Huang, Daniel Jackson, Nandini Raghuraman, Ebony B Carter, Indira U Mysorekar, Jeannie C Kelly

Faculty, Staff and Students Publications

Objectives: Our study aimed to explore the impact of COVID-19 infection on pregnancy outcomes, accounting for the progression of variants, vaccines, and treatment modalities.

Study design: We performed a prospective longitudinal cohort study at two urban tertiary centers enrolling patients with a confirmed intrauterine singleton pregnancy from December 23, 2020 to July 18, 2022. Patients were evaluated for SARS-CoV-2 infection at enrollment and every trimester using serum antibody testing. The primary outcome was preterm birth. Symptom and treatment data were collected from pregnant patients with COVID-19 infections. Variant strain infection status was determined from local wastewater analysis.

Results: 448 patients …


Women’S Health And Kidney Protective Medications, Mythri Shankar, Sehrish Ali, Silvi Shah Sep 2024

Women’S Health And Kidney Protective Medications, Mythri Shankar, Sehrish Ali, Silvi Shah

Faculty, Staff and Students Publications

Purpose of review: We discuss the sex-based differences in the pharmacokinetics and pharmacodynamics of kidney protective medications and their implications on women's health.

Recent findings: A critical examination of adverse drug reactions highlights the underrepresentation of women in clinical trials for kidney and cardiovascular protective drugs, such as SGLT2 inhibitors, ACE inhibitors, and endothelin receptor antagonists. This underscores the need for sex-specific analyses in clinical studies to accurately assess medication efficacy and safety.

Summary: The research demonstrates that women are more likely to experience adverse events and less likely to benefit from certain treatments, emphasizing the urgent need for healthcare …


Age Modifies The Association Between Severe Sleep Apnea And All-Cause Mortality, Amin Ramezani, Mehrnaz Azarian, Amir Sharafkhaneh, Arash Maghsoudi, Melissa B Jones, Thomas Penzel, Javad Razjouyan Sep 2024

Age Modifies The Association Between Severe Sleep Apnea And All-Cause Mortality, Amin Ramezani, Mehrnaz Azarian, Amir Sharafkhaneh, Arash Maghsoudi, Melissa B Jones, Thomas Penzel, Javad Razjouyan

Faculty, Staff and Students Publications

Purpose: While sleep apnea (SA) gets more prevalent with advancing age, the impact of age on the association between SA and health outcomes is not well known. We assessed the association between the severity of SA and all-cause mortality in different age groups using large longitudinal data.

Method: We applied a Natural Language Processing pipeline to extract the apnea-hypopnea index (AHI) from the physicians' interpretation of sleep studies performed at the Veteran Health Administration (FY 1999-2022). We categorized the participants as no SA (n-SA, AHI< 5) and severe SA (s-SA, AHI≥30). We grouped the cohort based on age: Young≤40; Middle-aged:40-65; and Older adults≥65; and calculated the odds ratio (aOR) of mortality adjusted for age, sex, race, ethnicity, BMI, and Charlson-Comorbidity Index (CCI) using n-SA as the reference.

Results: We identified 146,148 participants (age 52.23 ± 15.02; BMI 32.11 ± 6.05; male 86.7 …


Altered Extracellular Matrix-Related Pathways Accelerate The Transition From Normal To Prefibroid Myometrium In Black Women, Maria Victoria Bariani, Sandra L Grimm, Cristian Coarfa, Digna R Velez Edwards, Qiwei Yang, Cheryl L Walker, Mohamed Ali, Ayman Al-Hendy Sep 2024

Altered Extracellular Matrix-Related Pathways Accelerate The Transition From Normal To Prefibroid Myometrium In Black Women, Maria Victoria Bariani, Sandra L Grimm, Cristian Coarfa, Digna R Velez Edwards, Qiwei Yang, Cheryl L Walker, Mohamed Ali, Ayman Al-Hendy

Faculty, Staff and Students Publications

Background: Black women experience a disproportionate impact of uterine fibroids compared to White women, including earlier diagnosis, higher frequency, and more severe symptoms. The etiology underlying this racial disparity remains elusive.

Objective: The aim of this study was to evaluate the molecular differences in normal myometrium (fibroid-free uteri) and at-risk myometrium (fibroid-containing uteri) tissues in Black and White women.

Study design: We conducted whole-genome RNA-seq on normal and at-risk myometrium tissues obtained from both self-identified Black and White women (not Hispanic or Latino) to determine global gene expression profiles and to conduct enriched pathway analyses (n=3 per group). We initially …


Developing Biomarker Assays To Accelerate Tuberculosis Drug Development: Defining Target Product Profiles, Stephen H Gillespie, Andrew R Dinardo, Sophia B Georghiou, Wilber Sabiiti, Mikashmi Kohli, Ursula Panzner, Irina Kontsevaya, Norbert Hittel, Lieven J Stuyver, Jia Bin Tan, Reinout Van Crevel, Christoph Lange, Thuong Nguyen Thuy Thuong, Jan Heyckendorf, Morten Ruhwald, Norbert Heinrich Sep 2024

Developing Biomarker Assays To Accelerate Tuberculosis Drug Development: Defining Target Product Profiles, Stephen H Gillespie, Andrew R Dinardo, Sophia B Georghiou, Wilber Sabiiti, Mikashmi Kohli, Ursula Panzner, Irina Kontsevaya, Norbert Hittel, Lieven J Stuyver, Jia Bin Tan, Reinout Van Crevel, Christoph Lange, Thuong Nguyen Thuy Thuong, Jan Heyckendorf, Morten Ruhwald, Norbert Heinrich

Faculty, Staff and Students Publications

Drug development for tuberculosis is hindered by the methodological limitations in the definitions of patient outcomes, particularly the slow organism growth and difficulty in obtaining suitable and representative samples throughout the treatment. We developed target product profiles for biomarker assays suitable for early-phase and late-phase clinical drug trials by consulting subject-matter experts on the desirable performance and operational characteristics of such assays for monitoring of tuberculosis treatment in drug trials. Minimal and optimal criteria were defined for scope, intended use, pricing, performance, and operational characteristics of the biomarkers. Early-stage trial assays should accurately quantify the number of viable bacilli, whereas …


Update On The Diagnosis Of Tuberculosis, Irina Kontsevaya, Andrea Maurizio Cabibbe, Daniela Maria Cirillo, Andrew R Dinardo, Nicole Frahm, Stephen H Gillespie, David Holtzman, Lennard Meiwes, Elisa Petruccioli, Maja Reimann, Morten Ruhwald, Wilber Sabiiti, Francesca Saluzzo, Elisa Tagliani, Delia Goletti Sep 2024

Update On The Diagnosis Of Tuberculosis, Irina Kontsevaya, Andrea Maurizio Cabibbe, Daniela Maria Cirillo, Andrew R Dinardo, Nicole Frahm, Stephen H Gillespie, David Holtzman, Lennard Meiwes, Elisa Petruccioli, Maja Reimann, Morten Ruhwald, Wilber Sabiiti, Francesca Saluzzo, Elisa Tagliani, Delia Goletti

Faculty, Staff and Students Publications

Background: Tuberculosis (TB) remains a global public health threat, and the development of rapid and precise diagnostic tools is the key to enabling the early start of treatment, monitoring response to treatment, and preventing the spread of the disease.

Objectives: An overview of recent progress in host- and pathogen-based TB diagnostics.

Sources: We conducted a PubMed search of recent relevant articles and guidelines on TB screening and diagnosis.

Content: An overview of currently used methods and perspectives in the following areas of TB diagnostics is provided: immune-based diagnostics, X-ray, clinical symptoms and scores, cough detection, culture of Mycobacterium tuberculosis and …