Digital Commons Network^™

Siglec15, Negatively Correlated With Pd-L1 In Hcc, Could Induce Cd8+ T Cell Apoptosis To Promote Immune Evasion, Zheng Chen, Mincheng Yu, Bo Zhang, Lei Jin, Qiang Yu, Shuang Liu, Binghai Zhou, Jiuliang Yan, Wentao Zhang, Xiaoqiang Li, Yongfeng Xu, Yongsheng Xiao, Jian Zhou, Jia Fan, Mien-Chie Hung, Qinghai Ye, Hui Li, Lei Guo

Faculty, Staff and Student Publications

Functional roles of SIGLEC15 in hepatocellular carcinoma (HCC) were not clear, which was recently found to be an immune inhibitor with similar structure of inhibitory B7 family members. SIGLEC15 expression in HCC was explored in public databases and further examined by PCR analysis. SIGLEC15 and PD-L1 expression patterns were examined in HCC samples through immunohistochemistry. SIGLEC15 expression was knocked-down or over-expressed in HCC cell lines, and CCK8 tests were used to examine cell proliferative ability in vitro. Influences of SIGLEC15 expression on tumor growth were examined in immune deficient and immunocompetent mice respectively. Co-culture system of HCC cell lines and …

Understanding Primary Care Physician Perspectives On The Diagnosis And Management Of Non-Alcoholic Fatty Liver Disease: A Qualitative Study, Natalia I Heredia, Jemima C John, Sonia Singh, Jessica P Hwang, Larkin L Strong, Maya Balakrishnan, Lorna H Mcneill

Faculty, Staff and Student Publications

Primary care physicians (PCPs) are well suited to manage patients with non-alcoholic fatty liver disease (NAFLD), but the limited, existing research suggests inadequate knowledge about the natural history, diagnostic methods, and management of NAFLD. The purpose of this qualitative study is to further understand the knowledge and practices for the diagnosis and management of NAFLD among PCPs. We conducted in-depth interviews with PCPs in the Greater Houston area, addressing current clinical practices used for diagnosing and managing NAFLD, as well as the perceptions of the PCPs regarding the burden of NAFLD on patients. We recorded interviews, transcribed them, coded transcripts, …

Prospective Associations Of Psychedelic Treatment For Co-Occurring Alcohol Misuse And Posttraumatic Stress Symptoms Among United States Special Operations Forces Veterans, Stacey B Armstrong, Yitong Xin, Nathan D Sepeda, Martín Polanco, Lynnette A Averill, Alan K Davis

Faculty, Staff and Students Publications

This study evaluated prospective associations of ibogaine and 5-MeO-DMT treatment for risky alcohol use and post-traumatic stress disorder (PTSD) symptoms among United States (US) Special Operations Forces Veterans (SOFV). Data were collected during standard clinical operations at pre-treatment and 1-month (1 m), 3-months (3 m), and 6-months (6 m) post-treatment in an ibogaine and 5-MeO-DMT treatment program in Mexico. Of the 86 SOFV that completed treatment, 45 met criteria for risky alcohol use at pre-treatment (mean age = 44; male = 100%; White = 91%). There was a significant reduction in alcohol use from pre-treatment (M = 7.2, SD = …

Choosing Your “Healthiest” Embryo After Dobbs: Polygenic Screening And Distinctive Challenges For Truth In Advertising And Informed Consent, Dov Fox, Sonia Suter, Meghna Mukherjee, Stacey Pereira, Gabriel Lázaro-Muñoz

Center for Medical Ethics and Health Policy Staff Publications

Polygenic embryo screening ("PES") analyzes embryos for hundreds or thousands of genomic loci to generate risk scores that estimate genetic susceptibility to conditions and traits compared to the general population. The technology is commercially marketed directly to consumers. Companies focus mostly on medical conditions, sometimes in ways that oversell its advantages and efficacy, encouraging fertility patients to "choose your healthiest embryo" and "protect your future child from genetic risks." The advertising of PES trades on norms of children's health and good parenting and reinforces those normative ideals. While it is easy to assume PES will be constrained in practice by …

Development Of A Multi-Level/Multi-Modal Intervention For Health Care Transition Preparation, Beth H Garland, Mary Majumder, Constance M Wiemann, Blanca Sanchez-Fournier, Jordyn Babla, Albert C Hergenroeder

Center for Medical Ethics and Health Policy Staff Publications

Aims: Health care transition (HCT) to adult care and young adult disease self-management is a multi-step process involving three major stakeholders - the adolescent, the caregiver, and the provider. Preparation gaps exist within each of these stakeholder groups. This paper presents the development of the Intervention to Promote Autonomy and Competence in Transition-aged Youth (IPACT), a multi-level (adolescent, caregiver, provider), multi-modal (interactive skill building sessions, educational materials, videos) intervention to address gaps in all three stakeholder groups simultaneously and help support achieving the three core elements of HCT planning.

Methods: Eight processes were utilized to develop the IPACT intervention, including …

Parkinson's Disease And Other Alzheimer's Disease And Related Dementia Pathologies And The Progression Of Parkinsonism In Older Adults, Aron S Buchman, Lei Yu, Shahram Oveisgharan, Andrea R Zammit, Tianhao Wang, Joshua M Shulman, Veronique Vanderhorst, Sukrit Nag, David A Bennett

Faculty, Staff and Students Publications

BACKGROUND: The interrelationship of parkinsonism, Parkinson's disease (PD) and other Alzheimer's disease (AD) and Alzheimer's disease and related dementias (ADRD) pathologies is unclear.

OBJECTIVE: We examined the progression of parkinsonian signs in adults with and without parkinsonism, and their underlying brain pathologies.

METHODS: Annual parkinsonian signs were based on a modified Unified Parkinson's Disease Rating Scale. We used linear mixed effects models to compare the progression of parkinsonian signs in 3 groups categorized based on all available clinical evaluations: Group1 (never parkinsonism or clinical PD), Group2 (ever parkinsonism, but never clinical PD), Group3 (ever clinical PD). In decedents, we examined …

Research Participants' Perspectives On Precision Diagnostics For Alzheimer's Disease, Hadley Stevens Smith, Jill O Robinson, Ariel Levchenko, Stacey Pereira, Belen Pascual, Kathleen Bradbury, Victoria Arbones, Jamie Fong, Joshua M Shulman, Amy L Mcguire, Joseph Masdeu

Faculty, Staff and Students Publications

BACKGROUND: Understanding research participants' responses to learning Alzheimer's disease (AD) risk information is important to inform clinical implementation of precision diagnostics given rapid advances in disease modifying therapies.

OBJECTIVE: We assessed participants' perspectives on the meaning of their amyloid positron emission tomography (PET) imaging results for their health, self-efficacy to understand their results, psychological impact of learning their results, experience receiving their results from the clinical team, and interest in genetic testing for AD risk.

METHODS: We surveyed individuals who were being clinically evaluated for AD and received PET imaging six weeks after the return of results. We analyzed responses …

Mitral Valve Regurgitation In Klippel-Feil Syndrome With Related Thoracic Deformity, Yuki Endo, Yoshiei Shimamura, Hiroshi Niinami

The Texas Heart Institute Journal

Klippel-Feil syndrome, characterized by congenital fusion of any 2 or more cervical vertebrae, is a rare disorder in which skeletal and other organ system-related abnormalities have been reported. This article reports a case of mitral valve regurgitation in a patient with Klippel-Feil syndrome and related thoracic deformity who underwent mitral valvuloplasty. Postoperatively, the mitral valve regurgitation disappeared, and there has been no recurrence for 3 years. This case highlights mitral valvuloplasty via median sternotomy as an excellent treatment for mitral valve regurgitation in a patient with thoracic deformity related to Klippel-Feil syndrome.

Patient Perceptions On The Advancement Of Noninvasive Prenatal Testing For Sickle Cell Disease Among Black Women In The United States, Shameka P Thomas, Faith E Fletcher, Rachele Willard, Tiara Monet Ranson, Vence L Bonham

Center for Medical Ethics and Health Policy Staff Publications

Background: Noninvasive prenatal testing (NIPT) designed to screen for fetal genetic conditions, is increasingly being implemented as a part of routine prenatal care screening in the United States (US). However, these advances in reproductive genetic technology necessitate empirical research on the ethical and social implications of NIPT among populations underrepresented in genetic research, particularly Black women with sickle cell disease (SCD).

Methods: Forty (N = 40) semi-structured interviews were conducted virtually with Black women in the US (19 participants with SCD; 21 participants without SCD) from June 2021 to January 2022. We employed a qualitative approach to examine the …

Smooth Muscle Contractile Responses To Bile Acids In Mouse Ileum Require Tgr5 But Not Asbt, Diana S Chang, Krishnakant G Soni, Geoffrey A Preidis

Faculty, Staff and Students Publications

BACKGROUND: Many disorders of gut-brain interaction (DGBIs) are more prevalent in women than men and feature alterations in gastrointestinal motility and bile acid homeostasis. Mechanisms by which bile acids regulate gastrointestinal motility are poorly characterized. We recently validated an adapted tissue bath technique using everted mouse ileum, which revealed differential contractile responses to ursodeoxycholic acid (UDCA) and deoxycholic acid (DCA). Here, we aimed to determine whether these responses are dependent on host sex, the plasma membrane bile acid receptor TGR5, or the apical sodium-dependent bile acid transporter ASBT.

METHODS: Ileal segments from male and female mice were everted and suspended …

The Tb27 Transcriptomic Model For Predicting Mycobacterium Tuberculosis Culture Conversion, Maja Reimann, Korkut Avsar, Andrew R Dinardo, Torsten Goldmann, Gunar Günther, Michael Hoelscher, Elmira Ibraim, Barbara Kalsdorf, Stefan H E Kaufmann, Niklas Köhler, Anna M Mandalakas, Florian P Maurer, Marius Müller, Dörte Nitschkowski, Ioana D Olaru, Cristina Popa, Andrea Rachow, Thierry Rolling, Helmut J F Salzer, Patricia Sanchez-Carballo, Maren Schuhmann, Dagmar Schaub, Victor Spinu, Elena Terhalle, Markus Unnewehr, Nika J Zielinski, Jan Heyckendorf, Christoph Lange

Faculty, Staff and Students Publications

RATIONALE: Treatment monitoring of tuberculosis patients is complicated by a slow growth rate of Mycobacterium tuberculosis. Recently, host RNA signatures have been used to monitor the response to tuberculosis treatment.

OBJECTIVE: Identifying and validating a whole blood-based RNA signature model to predict microbiological treatment responses in patients on tuberculosis therapy.

METHODS: Using a multi-step machine learning algorithm to identify an RNA-based algorithm to predict the remaining time to culture conversion at flexible time points during anti-tuberculosis therapy.

RESULTS: The identification cohort included 149 patients split into a training and a test cohort, to develop a multistep algorithm consisting of …

Racial And Ethnic Disparities In Acuity Of Presentation Among Children With Newly Diagnosed Acute Leukemia, Lena E Winestone, Kelly D Getz, Yimei Li, Evanette Burrows, Michael E Scheurer, Vicky Tam, M Monica Gramatges, Jennifer J Wilkes, Tamara P Miller, Alix E Seif, Karen R Rabin, Brian T Fisher, Richard Aplenc

Center for Medical Ethics and Health Policy Staff Publications

We evaluated disparities in disease burden, organ dysfunction, vital signs, and timing of therapy in children newly presenting with acute leukemia. Among 899 patients with acute leukemia diagnosed at two large children's hospitals, a priori lab-based definitions of high disease burden, infection risk, renal dysfunction, and coagulopathy were applied to electronic health record data. Black patients with acute myeloid leukemia had increased prevalence of elevated white blood cell count and uric acid; Black patients with acute lymphoblastic leukemia demonstrated increased prevalence of coagulopathy. Black patients' presentation more frequently included multiple lab abnormalities consistent with advanced physiologic dysfunction. No differences were …

Obsessive-Compulsive Disorder Among Individuals Of Hispanic And Latin American Ancestry: Cultural Considerations For Assessment And Psychotherapy, Olivia J Morris, Andrew D Wiese, Caitlin M Pinciotti, Rosa Pacheco, Mayra C Martinez Mallen, Ethan J Schweissing, Keaton J Soileau, Latin American Trans-Ancestry Initiative For Ocd Genomics (Latino), Brazilian Obsessive-Compulsive Spectrum Work Group (Gttoc), James J Crowley, Eric A Storch

Center for Medical Ethics and Health Policy Staff Publications

Research specific to obsessive-compulsive disorder (OCD) among individuals of Hispanic and Latin American (H/L) ancestry is limited, as are culturally relevant assessment and treatment recommendations. This article discusses the implications of underrepresentation of H/L populations in OCD research and emphasizes the need to consider issues related to assessment, treatment, and structural barriers that hinder delivery of culturally appropriate first-line psychotherapy. Recommendations for assessment and treatment are provided to aid clinicians in distinguishing culturally normative thoughts and behaviors from OCD, as well as to inform the implementation of psychotherapeutic interventions with cultural humility. This manuscript offers recommendations for future research to …

Public Perspectives On Investigative Genetic Genealogy: Findings From A National Focus Group Study, Jacklyn Dahlquist, Jill O Robinson, Amira Daoud, Whitney Bash-Brooks, Amy L Mcguire, Christi J Guerrini, Stephanie M Fullerton

Center for Medical Ethics and Health Policy Staff Publications

Background: Investigative genetic genealogy (IGG) is a technique that involves uploading genotypes developed from perpetrator DNA left at a crime scene, or DNA from unidentified remains, to public genetic genealogy databases to identify genetic relatives and, through the creation of a family tree, the individual who was the source of the DNA. As policymakers demonstrate interest in regulating IGG, it is important to understand public perspectives on IGG to determine whether proposed policies are aligned with public attitudes.

Methods: We conducted eight focus groups with members of the public (N = 72), sampled from four geographically diverse US regions, …

Clinical Characteristics Of Probands With Obsessive-Compulsive Disorder From Simplex And Multiplex Families, Monicke O Lima, Leonardo C Saraiva, Vanessa R Ramos, Melaine C Oliveira, Daniel L C Costa, Brazilian Research Consortium On Obsessive-Compulsive Spectrum Disorders, Thomas V Fernandez, James J Crowley, Eric A Storch, Roseli G Shavitt, Euripedes C Miguel, Carolina Cappi

Center for Medical Ethics and Health Policy Staff Publications

Genetic and non-genetic factors contribute to obsessive-compulsive disorder (OCD), with strong evidence of familial clustering. Genomic studies in psychiatry have used the concepts of families that are "simplex" (one affected) versus "multiplex" (multiple affected). Our study compares demographic and clinical data from OCD probands in simplex and multiplex families to uncover potential differences. We analyzed 994 OCD probands (501 multiplex, 493 simplex) from the Brazilian Research Consortium on Obsessive-Compulsive Spectrum Disorders (C-TOC). Clinicians administered the Structured Clinical Interview for DSM-IV (SCID-IV) to diagnose, Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) to assess severity, and Dimensional Yale-Brown Obsessive-Compulsive Scale (DY-BOCS) to assess symptom dimensionality. …

Trans-Ancestry Analysis Of Psychosis Biotypes: Shared Polygenic Risk And Unique Genomic Associations, Elliot S. Gershon, Ney Alliey-Rodriguez, Carol A. Tamminga, Matcheri S. Keshavan, Godfrey D. Pearlson, Sarah K. Keedy, David Parker, Rebekka Lencer, Scot Hill, Jeffrey R. Bishop

School of Medicine Publications

The Bipolar-Schizophrenia Network for Intermediate Phenotypes (B-SNIP) has categorized psychosis disorders (Schizophrenia, Schizoaffective Disorder and Bipolar Disorder) into three distinct Biotypes, based on neurobiological measurements in a multi-ancestry sample. Two recently developed post hoc ancestry adjustment methods of Polygenic Risk Scores (PRSs) generate Trans-Ancestry PRSs (TAPRSs), which allow for PRS analysis of multi-ancestry samples. Applied to schizophrenia PRS, we found the Khera TAPRS method to show superior portability and comparable prediction accuracy as compared with the Ge method. The three Biotypes of psychosis disorders had similar TAPRSs across ancestries. In genomic analysis of Biotypes, nine genes and isoforms showed significant …

Nanopore-Based Dna Long-Read Sequencing Analysis Of The Aged Human Brain, Paulino Ramirez, Wenyan Sun, Shiva Kazempour Dehkordi, Habil Zare, Bernard Fongang, Kevin F. Bieniek, Bess Frost

School of Medicine Publications

Aging disrupts cellular processes such as DNA repair and epigenetic control, leading to a gradual buildup of genomic alterations that can have detrimental effects in post-mitotic cells. Genomic alterations in regions of the genome that are rich in repetitive sequences, often termed "dark loci," are difficult to resolve using traditional sequencing approaches. New long-read technologies offer promising avenues for exploration of previously inaccessible regions of the genome. Using nanopore-based long-read whole-genome sequencing of DNA extracted from aged 18 human brains, we identify previously unreported structural variants and methylation patterns within repetitive DNA, focusing on transposable elements ("jumping genes") as crucial …

A Social Media Analysis Of Patient-Perceived Complications Following Periacetabular Osteotomy (Pao): A Retrospective Observational Study, Bretton Laboret, Ryan Bialaszewski, John M. Gaddis, Emily Middleton, Brittany Kendall, Katie Lynch, Adina Stewart, Joel Wells

School of Medicine Publications

Background: Social media is a popular resource for patients seeking medical information and sharing experiences. Periacetabular osteotomy (PAO) is an accepted treatment for symptomatic acetabular dysplasia with a low published complication profile in specialty centers. Little is known regarding patient reporting of complications on social media following PAO. The purpose of this study was to describe the patient-perceived complications of PAO posted on social media and analyze how additional factors (postoperative timeframe, concomitant surgery) correlate with these complication posts.

Methods: Facebook and Instagram were queried from 02/01/18-02/01/23; Twitter was searched over an extended range back to 02/01/11. Facebook posts (1054) …

Targeting Of Oncogenic Aaa-Atpase Trip13 Reduces Progression Of Pancreatic Ductal Adenocarcinoma, Farrukh Afaq, Sumit Agarwal, Prachi Bajpai, Sameer Al Diffalha, Hyung-Gyoon Kim, Shajan Peter, Moh'd Khushman, Subhash Chauhan, Priyabrata Mukherjee, Sooryanarayana Varambally, Upender Manne

School of Medicine Publications

Thyroid hormone receptor-interacting protein 13 (TRIP13) is involved in cancer progression, but its role in pancreatic ductal adenocarcinoma (PDAC) is unknown. Thus, we assessed the expression, functional role, and mechanism of action of TRIP13 in PDAC. We further examined the efficacy of TRIP13 inhibitor, DCZ0415, alone or in combination with gemcitabine on malignant phenotypes, tumor progression, and immune response. We found that TRIP13 was overexpressed in human PDACs relative to corresponding normal pancreatic tissues. TRIP13 knockdown or treatment of PDAC cells with DCZ0415 reduced proliferation and colony formation, and induced G2/M cell cycle arrest and apoptosis. Additionally, TRIP13 knockdown …

P513: Project Give: Expanding Genetic Testing To Underserved Areas In The Rio Grande Valley Using An Ehr-Agnostic Tele-Engagement Platform, Blake Vuocolo, Roberta Sierra, Kent Carter, Keila Rodriguez, Lori Berry, Ana Hernandez, Humberto Hidalgo, Alberto Allegre, Sandy Magallan, Sarah Rodriguez

School of Medicine Publications

Introduction

Providing an accurate genetic diagnosis to children in a timely manner is crucial for providing appropriate medical interventions, counseling families about recurrence risks, and addressing the psychosocial and financial challenges that are known to be associated with diagnostic odysseys. Unfortunately, underserved and under resourced areas across the nation have poor access to genetic testing. There is a significant disparity in access to genomic healthcare in the Rio Grande Valley (RGV) along the Texas-Mexico border, which has a population of about 1.4 million residents and no local full-time genetics provider. Over 94% of the population in the RGV is Hispanic, …

A Neural Mechanism For Conserved Value Computations Integrating Information And Rewards, Ethan S Bromberg-Martin, Yang-Yang Feng, Takaya Ogasawara, J Kael White, Kaining Zhang, Ilya E Monosov

2020-Current year OA Pubs

Behavioral and economic theory dictate that we decide between options based on their values. However, humans and animals eagerly seek information about uncertain future rewards, even when this does not provide any objective value. This implies that decisions are made by endowing information with subjective value and integrating it with the value of extrinsic rewards, but the mechanism is unknown. Here, we show that human and monkey value judgements obey strikingly conserved computational principles during multi-attribute decisions trading off information and extrinsic reward. We then identify a neural substrate in a highly conserved ancient structure, the lateral habenula (LHb). LHb …

Extending Natural Mates In Euclidean 3-Space And Applications To Bertrand Pairs, Yun Myung Oh, Alexander Navarro

Faculty Publications

In Euclidean 3-space, a family of curves, the co-successor, is motivated and then introduced in relation to the natural mate. A complete characterization of co-successors is proved, followed by an application of the co-successor towards describing Bertrand curves and their mates.

Who Has The Most Influence On Your Spirituality?, S. Joseph Kidder, Natalie M. Darisme

Faculty Publications

No abstract provided.

The Mediating Effect Of Financial Literacy On Blockchain Technology Application And Financial Risk: Insight From Ghanaian Professionals Toward Policy Recommendations, Maxwell Okpoti Mensah, Williams Kwasi Peprah [email protected]

Faculty Publications

This study explores the mediating effect of financial literacy on the relationship between blockchain technology application and financial risk among financial institution professionals in Ghana. Utilizing a correlational research design, data were collected from a sample of 336 professionals through a self-constructed Likert-scale questionnaire. The analysis was conducted using path analysis and mediation techniques. The findings reveal that financial literacy had a significant partial mediating effect between blockchain technology application and financial risk, accounting for 26.0% of the total effect. The direct negative effect of blockchain technology applications on financial risk also remained significant, highlighting the independent contribution of blockchain …

Inactive Metallopeptidase Homologs: The Secret Lives Of Pseudopeptidases, Peter Lyons

Faculty Publications

Inactive enzyme homologs, or pseudoenzymes, are proteins, found within most enzyme families, that are incapable of performing catalysis. Rather than catalysis, they are involved in protein-protein interactions, sometimes regulating the activity of their active enzyme cousins, or scaffolding protein complexes. Pseudoenzymes found within metallopeptidase families likewise perform these functions. Pseudoenzymes within the M14 carboxypeptidase family interact with collagens within the extracellular space, while pseudopeptidase members of the M12 "a disintegrin and metalloprotease" (ADAM) family either discard their pseudopeptidase domains as unnecessary for their roles in sperm maturation or utilize surface loops to enable assembly of key complexes at neuronal synapses. …

Review Of "Roosevelt Institute.", Katharine M. Van Arsdale

Faculty Publications

No abstract provided.

Review Of The Myth Of Middle East Exceptionalism: Unfinished Social Movements Movements, Shahrzad Khosrowpour

Library Articles and Research

A review of The Myth of Middle East exceptionalism: Unfinished Social Movements by Mojtaba Mahdavi.

Review Of How Ai Works: From Sorcery To Science, By Ronald T. Kneusel, Taylor J. Greene

Library Articles and Research

A review of How AI Works: From Sorcery to Science, by Ronald T. Kneusel.

Review Of Who Wrote This?: How Ai And The Lure Of Efficiency Threaten Human Writing, By Naomi S. Baron, Taylor J. Greene

Library Articles and Research

A review of Who Wrote This?: How AI and the Lure of Efficiency Threaten Human Writing, by Naomi S. Baron.

Non-Human Stakeholders: Testing The Boundaries Of Stakeholder Theory, Justin Blount, Michael Conklin

Oklahoma Law Review

No abstract provided.