Digital Commons Network^™

Dna Methylation Analysis Is Used To Identify Novel Genetic Loci Associated With Circulating Fibrinogen Levels In Blood, Julie Hahn, Jan Bressler, Arce Domingo-Relloso, Ming-Huei Chen, Daniel L Mccartney, Alexander Teumer, Jenny Van Dongen, Marcus E Kleber, Dylan Aïssi, Brenton R Swenson, Jie Yao, Wei Zhao, Jian Huang, Yujing Xia, Michael R Brown, Ricardo Costeira, Eco J C De Geus, Graciela E Delgado, Dre'von A Dobson, Paul Elliott, Hans J Grabe, Xiuqing Guo, Sarah E Harris, Jennifer E Huffman, Sharon L R Kardia, Yongmei Liu, Stefan Lorkowski, Riccardo E Marioni, Matthias Nauck, Scott M Ratliff, Maria Sabater-Lleal, Tim D Spector, Pierre Suchon, Kent D Taylor, Florian Thibord, David-Alexandre Trégouët, Kerri L Wiggins, Gonneke Willemsen, Jordana T Bell, Dorret I Boomsma, Shelley A Cole, Simon R Cox, Abbas Dehghan, Andreas Greinacher, Karin Haack, Winfried März, Pierre-Emmanuel Morange, Jerome I Rotter, Nona Sotoodehnia, Maria Tellez-Plaza, Ana Navas-Acien, Jennifer A Smith, Andrew D Johnson, Myriam Fornage, Nicholas L Smith, Alisa S Wolberg, Alanna C Morrison, Paul S De Vries

Faculty, Staff and Student Publications

Background:

Fibrinogen plays an essential role in blood coagulation and inflammation. Circulating fibrinogen levels may be determined by inter-individual differences in DNA methylation at CpG sites, and vice versa.

Methods:

We performed an epigenome-wide association study (EWAS) of circulating fibrinogen levels in 18,037 White, Black, American Indian, and Hispanic participants representing 14 studies from the CHARGE consortium. Circulating leukocyte DNA methylation was measured in 12,904 participants using the Illumina 450K array, and in 5,133 participants using the EPIC array. Each study performed an EWAS of fibrinogen using linear mixed models adjusted for potential confounders. Study-specific results were combined using array-specific …

Chronic Overlapping Pain Conditions And Long-Term Opioid Treatment, Maria Ukhanova, Robert W Voss, Miguel Marino, Nathalie Huguet, Steffani R Bailey, Daniel M Hartung, Jean O'Malley, Irina Chamine, John Muench

Faculty, Staff and Student Publications

OBJECTIVES: One in 5 people in the United States lives with chronic pain. Many patients with chronic pain experience a subset of specific co-occurring pain conditions that may share a common pain mechanism and that have been designated as chronic overlapping pain conditions (COPCs). Little is known about chronic opioid prescribing patterns among patients with COPCs in primary care settings, especially among socioeconomically vulnerable patients. This study aims to evaluate opioid prescribing among patients with COPCs in US community health centers and to identify individual COPCs and their combinations that are associated with long-term opioid treatment (LOT).

STUDY DESIGN: Retrospective …

An Investigation On The Effect Of Conserved Hinge Histidine On Influenza Hemagglutinin(Ha2) Protein Conformation Using Md Simulations, Nada Tolba

Chemistry & Biochemistry Undergraduate Honors Theses

Hemagglutinin is a protein on the surface of Human Influenza Viruses.¹ It is composed of two glycopolypeptide domains, the HA1 and HA2 domains. Previous studies have found that across different strains of Influenza viruses, HIS435 residues remain conserved.⁴ In studies where mutations occurred in hinge-site histadine residues, the Influenza virus was inactive.⁴ These investigations indicated a significant role of HIS435 (hinge-site histadines) in virulence. Four systems were created using Molecular dynamics (MD) simulations. Each system was composed of an Isolated HA2 trimer solvated in a 150 mM NaCl rectangular water box at 310 K under isobaric and …

Determining The Effects Of Maternal Adiposity On Preterm Neonatal Microbiome And Short Chain Fatty Acid Profiles, Dalton James, William A. Clark Phd, Kristy L. Thomas

Undergraduate Honors Theses

The gut microbiota and its metabolites have vast impacts on the human digestive system, immune system, and health outcomes. Short chain volatile fatty acids (SCVFAs) present in feces can be representative of the interactions of the microbiota present in the gut. Low microbiota diversity in the human gut is highly associated with obesity and adverse health outcomes. Furthermore, the maternal microbiome has a direct impact on neonatal microbiota through various pathways such as environment, skin flora, breast milk composition, and vaginal secretions. This study is aimed to further understand the associations between various factors (maternal adiposity, gestational time, length of …

Pkpd-Model Based Preclinical Characterization Of The Activity Of Spectinamide 1599 Against Mycobacterial Subpopulations. And The Identification Of Potential Partners For Combination Therapy, Zaid Hanif Temrikar

Theses and Dissertations (ETD)

Tuberculosis is one of the top 10 causes of death worldwide and the leading cause of death from a single infectious agent prior to COVID19. Mycobacterium tuberculosis (Mtb) is the causative agent of TB. The interaction between Mtb and the immune system leads to development of diverse environmental niches and physiology within the lung of the TB patients. Mtb is thought to adapt and thrive in such an environment by transforming to different phenotypic variants. Such variants are difficult to kill and are thought to prolong TB pharmacotherapy. Spectinamide 1599 is a synthetic modification of spectinomycin that has demonstrated excellent …

Inhibition Of Kdm4 With Qc6352 To Target High-Risk Neuroblastoma, Ahmed M. Abuzaid

Theses and Dissertations (ETD)

Neuroblastoma (NB) is a malignancy of improperly maturated nerve tissues of the sympathetic nervous system. It is the most diagnosed extracranial solid tumor of childhood, and it accounts for roughly up to 10% of all childhood malignancies and 15% of all childhood malignancy-related deaths. MYCN amplification, occurring in 20-25% of all NB patients and 50% of all high-risk NB patients, is the well-characterized genetic abnormality and is associated with ill-fated outcomes. Regrettably, in spite of the contemporary therapeutic advances and aggressive combinatorial treatments, the overall 5-year event-free survival rate is roughly 51% with a 5-year overall survival rate of nearly …

Transforming Monterey Counties Food Environment, Geovanni Miron Solis

Capstone Projects and Master's Theses

The Blue Zones project was brought to Monterey County due to the high prevalence of type 2 diabetes. Nearly fifty percent of Monterey county are pre-diabetic or diabetic. The Blue Zones Project of Monterey County is a well being improvement initiative that works with local schools, worksites, restaurants and organizations to educate and promote healthier habits. The food sector of the project consists of individuals who work with restaurants and grocery stores here in Monterey County. The project serves Marina, Seaside, Monterey, Salinas, Pacific Grove, Gonzalez, King City, Soledad, Castroville, and Chular. A major issue the project wants to address …

Two Stacked Coins Mimicking An Esophageal Button Battery: A Case Presentation And Review Of The Literature, Nicholas Rossi, Devin Reddy, John Coggins, Duncan C Whatley, Harold S Pine, Shiva Daram

Faculty, Staff and Student Publications

As button battery (BB) ingestion has become a popular topic with growing public awareness in recent years, pediatric otolaryngologists maintain a high index of suspicion for this diagnosis. Several recent reports have revealed the possibility for benign objects to masquerade as BBs, such as two coins stacked together or a coin with different metals in concentric rings. A 4-year-old female presented to the ED after unwitnessed ingestion of a foreign body. The child was reportedly seen playing with her sister's coin collection prior to the acute onset of drooling and dysphagia. She was vitally stable and without any shortness of …

Patient With Genital Lymphedema, Pain, And Rash, Resa G Magill, Dylan Supak, Rachel Pham, Dustin Luse, Cooper R Benson

Faculty, Staff and Student Publications

No abstract provided.

Mastro I: Meta-Analysis And Systematic Review Of Thrombectomy Stent Retriever Outcomes: Comparing Functional, Safety And Recanalization Outcomes Between Embotrap, Solitaire And Trevo In Acute Ischemic Stroke, Osama O Zaidat, Shelly Ikeme, Sunil A Sheth, Shinichi Yoshimura, Xin-Guang Yang, Waleed Brinjikji, David F Kallmes, Patrick Brouwer, John Pederson, Ranita Tarchand, Annie Steffenson, Kevin M Kallmes, Jillienne Touchette, Tommy Andersson

Faculty, Staff and Student Publications

Aims:

Stent-retriever (SR) thrombectomy has demonstrated superior outcomes in patients with acute ischemic stroke compared with medical management alone, but differences among SRs remain unexplored. We conducted a Systematic Review/Meta-Analysis to compare outcomes between three SRs: EmboTrap^®, Solitaire™, and Trevo^®.

Methods:

We conducted a PRISMA-compliant Systematic Review among English-language studies published after 2014 in PubMed/MEDLINE that reported SRs in ≥25 patients. Functional and safety outcomes included 90-day modified Rankin scale (mRS 0-2), mortality, symptomatic intracranial hemorrhage (sICH), and embolization to new territory (ENT). Recanalization outcomes included modified thrombolysis in cerebral infarction (mTICI) and first-pass recanalization (FPR). …

The Association Of 1-Year Weight Loss From Bariatric Surgery And Self-Reported Sleep: A Prospective Cohort, Salman S Hasan, Elena E Skaribas, Elaijah Islam, David Z Allen, Sancak Yuksel

Faculty, Staff and Student Publications

Hypoplastic left heart syndrome (HLHS) is a congenital diagnosis that necessitates immediate intervention at the beginning of life to ensure survival past infancy and to optimize left-side cardiac function. Often, these required procedures can lead to deleterious side effects and resultant complications. In this case report, we present a 15-month-old patient with HLHS who underwent multiple procedures, including two aortic arch surgeries. After the interventions, the patient experienced left main pulmonary bronchus compression along with pulmonary artery stenosis. In this case, we outline an approach to performing vascular dilation without compromise of airway patency.

Does The Type Of Chronic Heart Failure Impact In-Hospital Outcomes For Aortic Valve Replacement Procedures?, Talha Mubashir, John Zaki, Sin Yeong An, Ismael A Salas De Armas, Yafen Liang, Travis Markham, Han Feng, Mehmet H Akay, Angelo Nascimbene, Bindu Akkanti, George W Williams, Fabricio Zasso, Maria Patarroyo Aponte, Igor D Gregoric, Biswajit Kar

Faculty, Staff and Student Publications

BACKGROUND: This study assessed in-hospital outcomes of patients with chronic systolic, diastolic, or mixed heart failure (HF) undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR).

METHODS: The Nationwide Inpatient Sample database was used to identify patients with aortic stenosis and chronic HF who underwent TAVR or SAVR between 2012 and 2015. Propensity score matching and multivariate logistic regression were used to determine outcome risk.

RESULTS: A cohort of 9,879 patients with systolic (27.2%), diastolic (52.2%), and mixed (20.6%) chronic HF were included. No statistically significant differences in hospital mortality were noted. Overall, patients with diastolic HF …

Clinical Consensus Guideline On The Management Of Phaeochromocytoma And Paraganglioma In Patients Harbouring Germline Sdhd Pathogenic Variants, David Taïeb, George B Wanna, Maleeha Ahmad, Charlotte Lussey-Lepoutre, Nancy D Perrier, Svenja Nölting, Laurence Amar, Henri J L M Timmers, Zachary G Schwam, Anthony L Estrera, Michael Lim, Erqi Liu Pollom, Lucas Vitzthum, Isabelle Bourdeau, Ruth T Casey, Frédéric Castinetti, Roderick Clifton-Bligh, Eleonora P M Corssmit, Ronald R De Krijger, Jaydira Del Rivero, Graeme Eisenhofer, Hans K Ghayee, Anne-Paule Gimenez-Roqueplo, Ashley Grossman, Alessio Imperiale, Jeroen C Jansen, Abhishek Jha, Michiel N Kerstens, Henricus P M Kunst, James K Liu, Eamonn R Maher, Daniele Marchioni, Leilani B Mercado-Asis, Ozgur Mete, Mitsuhide Naruse, Naris Nilubol, Neeta Pandit-Taskar, Frédéric Sebag, Akiyo Tanabe, Jiri Widimsky, Leah Meuter, Jacques W M Lenders, Karel Pacak

Faculty, Staff and Student Publications

Patients with germline SDHD pathogenic variants (encoding succinate dehydrogenase subunit D; ie, paraganglioma 1 syndrome) are predominantly affected by head and neck paragangliomas, which, in almost 20% of patients, might coexist with paragangliomas arising from other locations (eg, adrenal medulla, para-aortic, cardiac or thoracic, and pelvic). Given the higher risk of tumour multifocality and bilaterality for phaeochromocytomas and paragangliomas (PPGLs) because of SDHD pathogenic variants than for their sporadic and other genotypic counterparts, the management of patients with SDHD PPGLs is clinically complex in terms of imaging, treatment, and management options. Furthermore, locally aggressive disease can be discovered at a …

Suicidal Ideation And Psychological Dating Violence Victimization—A Short Report, Gabriel Esmailian, Qiudong Chen, Danny Ramzy, Jon A Kobashigawa, Joanna Chikwe, Fardad Esmailian

Faculty, Staff and Student Publications

At a time when transplantable organs are in a shortage, few cases have noted the reuse of donor hearts in a second recipient in an effort to expand the donor network. Here, we present a case in which an O Rh-positive donor heart was first transplanted into a B Rh-positive recipient and later successfully retransplanted into a second O Rh-positive recipient 10 days after the initial transplant at the same medical center. On postoperative day 1, the first recipient, a 21-year-old man with nonischemic cardiomyopathy, sustained a devastating cerebrovascular accident with progression to brain death. With preserved left ventricle and …

The Role Of Transcatheter Aortic Valve Implantation In Patients With Bicuspid Valves In 2023, Milad El Hajj, Zvonimir Krajcer

The Texas Heart Institute Journal

No abstract provided.

Evaluation Of The Effect Of Enterococcus Cecorum Exposure During Late Embryogenesis On Systemic Disease And Early Performance In Broiler Chickens, Marcela Arango

Graduate Theses and Dissertations

The objective of this thesis was to investigate the effects of Enterococcus cecorum (EC) administration into the amnion at day 18 of embryogenesis on performance and septicemia development in broiler chickens. Chapter I consists of a brief overview of the thesis. Chapter II provides a literature review on EC-related disease in broiler chickens and methods to isolate, detect, and differentiate between commensal and pathogenic strains of EC. Chapter III consists of a study conducted to determine if different EC strains isolated from field cases that exhibited septicemia and high mortality impacted hatchability, livability, organ colonization, and early performance in broiler …

An Ecological Perspective Of American Rodent-Borne Orthohantavirus Surveillance, Nathaniel Mull

Graduate Theses and Dissertations

Orthohantaviruses are a global group of viruses found primarily in rodents, though several viruses have also been found in shrews and moles. Many rodent-borne orthohantaviruses are capable of causing one of several diseases in humans, and the mortality associated with these diseases ranges from < 0.1% - 50% depending on the specific etiological virus. In North and South America, orthohantavirus research was ignited by an outbreak of severe disease in the Four Corners region of the United States in 1993. However, despite the discovery of over 20 orthohantaviruses in the Americas, our understanding of orthohantavirus ecology and virus-host dynamics in this region is still limited, and orthohantavirus surveillance is generally restricted in scope to select regions and small portions of host distributional ranges. In Chapter I, I present a literature review on the current understanding of American rodent-borne orthohantavirus ecology. This review focused on under-studied orthohantaviruses, addressing gaps in knowledge by extrapolating information from well-studied orthohantaviruses, general rodent ecology, and occassionally from Eurasian orthohantavirus-host ecology. There were several key conclusions generated from this review that warrant further research: 1) the large number of putative orthohantaviruses and gaps in orthohantavirus evolution necessitate further surveillance and characterization, 2) orthohantavirus traits differ and are more generalizable based on host taxonomy rather than geography, and 3) orthohantavirus host species are disproportionately found in grasslands and disturbed habitats. In Chapter II, I present a prioritized list of rodent species to target for orthohantavirus surveillance based on predictive modeling using machine learning. Probable orthohantavirus hosts were predicted based on traits of known orthohantavirus hosts using two different types of evidence: RT-PCR and virus isolation. Predicted host distributions were also mapped to identify geographic hotspots to spatially guide future surveillance efforts. In Chapter III, I present a framework for understanding and predicting orthohantavirus traits based on reservoir host phylogeny, as opposed to the traditional geographic dichotomy used to group orthohantaviruses. This framework establishes three distinct orthohantavirus groups: murid-borne orthohantaviruses, arvicoline-borne orthohantaviruses, and non-arvicoline cricetid-borne orthohantaviruses, which differ in several key traits, including the human disease they cause, transmission routes, and virus-host fidelity. In Chapter IV, I compare rodent communities and orthohantavirus prevalence among grassland management regimes. Sites that were periodically burned had high rodent diversity and a high proportion of grassland species. However, rodent seroprevalence for orthohantavirus was also highest in burned sites, representing a trade-off in habitat management outcomes. The high seroprevalence in burned sites is likely due to the robust populations supported by the high quality habitat resulting from prescribed burning. In Chapters V and VI, I describe Ozark virus and Sager Creek virus, two novel orthohantaviruses discovered from specimens collected during Chapter IV. Both chapters report full genome sequences of the respective viruses and compare both nucleotide and protein phylogenies with related orthohantaviruses. Additionally in Chapter VI, I support the genetic analyses with molecular and ecological characterizations, including seasonal fluctuations in host abundance, correlates of prevalence, evidence of virus shedding, and information on host cell susceptibility to Sager Creek virus.

An In Vivo Biocompatibility Analysis Of A Novel Tissue Regeneration Matrix Using A Pig Model, Shamar Thomas

All Theses

The goal of this project is to develop an injectable bead scaffold to promote tissue regeneration in the void created by lumpectomy and to alleviate post lumpectomy problems by preventing local recurrence and minimizing surgical-related infections. Microbeads were synthesized from collagen type I and crosslinked with tannic acid to form the basis for this injectable therapeutic. Tannic acid acts as a therapeutic anticancer agent. The action mechanisms of tannins in breast cancer cells have been studied with studies showing tannins to be cytotoxic to cancer cells in a dose-dependent manner. Tannic acid induces apoptosis in breast cancer cells via caspase …

Does The Type Of Chronic Heart Failure Impact In-Hospital Outcomes For Aortic Valve Replacement Procedures?, Talha Mubashir, John Zaki, Sin Yeong An, Ismael A Salas De Armas, Yafen Liang, Travis Markham, Han Feng, Mehmet H Akay, Angelo Nascimbene, Bindu Akkanti, George W Williams, Fabricio Zasso, Maria Patarroyo Aponte, Igor D Gregoric, Biswajit Kar

The Texas Heart Institute Journal

Background: This study assessed in-hospital outcomes of patients with chronic systolic, diastolic, or mixed heart failure (HF) undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR).

Methods: The Nationwide Inpatient Sample database was used to identify patients with aortic stenosis and chronic HF who underwent TAVR or SAVR between 2012 and 2015. Propensity score matching and multivariate logistic regression were used to determine outcome risk.

Results: A cohort of 9,879 patients with systolic (27.2%), diastolic (52.2%), and mixed (20.6%) chronic HF were included. No statistically significant differences in hospital mortality were noted. Overall, patients with diastolic HF …

Does The Type Of Chronic Heart Failure Impact In-Hospital Outcomes For Aortic Valve Replacement Procedures?, Talha Mubashir, John Zaki, Sin Yeong An, Ismael A Salas De Armas, Yafen Liang, Travis Markham, Han Feng, Mehmet H Akay, Angelo Nascimbene, Bindu Akkanti, George W Williams, Fabricio Zasso, Maria Patarroyo Aponte, Igor D Gregoric, Biswajit Kar

The Texas Heart Institute Journal

Background: This study assessed in-hospital outcomes of patients with chronic systolic, diastolic, or mixed heart failure (HF) undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR).

Methods: The Nationwide Inpatient Sample database was used to identify patients with aortic stenosis and chronic HF who underwent TAVR or SAVR between 2012 and 2015. Propensity score matching and multivariate logistic regression were used to determine outcome risk.

Results: A cohort of 9,879 patients with systolic (27.2%), diastolic (52.2%), and mixed (20.6%) chronic HF were included. No statistically significant differences in hospital mortality were noted. Overall, patients with diastolic HF …

Leveraging Innovation To Mitigate Risk During Heart Surgery, Marc R Moon, Puja Kachroo

The Texas Heart Institute Journal

No abstract provided.

Does The Type Of Chronic Heart Failure Impact In-Hospital Outcomes For Aortic Valve Replacement Procedures?, Talha Mubashir, John Zaki, Sin Yeong An, Ismael A Salas De Armas, Yafen Liang, Travis Markham, Han Feng, Mehmet H Akay, Angelo Nascimbene, Bindu Akkanti, George W Williams, Fabricio Zasso, Maria Patarroyo Aponte, Igor D Gregoric, Biswajit Kar

The Texas Heart Institute Journal

Background: This study assessed in-hospital outcomes of patients with chronic systolic, diastolic, or mixed heart failure (HF) undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR).

Methods: The Nationwide Inpatient Sample database was used to identify patients with aortic stenosis and chronic HF who underwent TAVR or SAVR between 2012 and 2015. Propensity score matching and multivariate logistic regression were used to determine outcome risk.

Results: A cohort of 9,879 patients with systolic (27.2%), diastolic (52.2%), and mixed (20.6%) chronic HF were included. No statistically significant differences in hospital mortality were noted. Overall, patients with diastolic HF …

Increased Plasma Non-High-Density Lipoprotein Levels And Poor Coronary Collateral Circulation In Patients With Stable Coronary Artery Disease, Fatih Sivri, Banu Öztürk Ceyhan

The Texas Heart Institute Journal

BACKGROUND: This study investigated the relationship between coronary collateral circulation (CCC) and non-high-density lipoprotein cholesterol (non-HDL-C) in patients with stable coronary artery disease (CAD). Coronary collateral circulation plays a critical role in supporting blood flow, particularly in the ischemic myocardium. Previous studies show that non-HDL-C plays a more important role in the formation and progression of atherosclerosis than do standard lipid parameters.

METHODS: A total of 226 patients with stable CAD and stenosis of more than 95% in at least 1 epicardial coronary artery were included in the study. Rentrop classification was used to assign patients into group 1 (n …

Meta-Analysis Of The Association Between Atrial Fibrillation, Hypertension, Sleep-Disordered Breathing, And Wake-Up Stroke, Jin Zhou, Jing Xu, Aijuan Cheng, Yimiti Kadier, Xiaoli Liang, Maimaitijiang Mutailipu, Shan Sun

The Texas Heart Institute Journal

BACKGROUND: The occurrence of atrial fibrillation, circadian fluctuation in blood pressure, and oxygen desaturation at night is likely associated with the pathophysiology of wake-up stroke. Whether patients who experience wake-up strokes are candidates for thrombolysis treatment is a serious dilemma. The aim is to investigate the association between risk factors and wake-up stroke and to determine variations that are associated with the pathophysiology of wake-up stroke.

METHODS: Five major electronic databases were searched using a fitted search strategy to identify relevant studies. Odds ratios with 95% CIs were used to calculate estimates, and the Quality Assessment for Diagnostic Accuracy Studies-2 …

Closed Mitral Valvotomy: Celebrating 100 Years Of Surgical History, Uberto Bortolotti, Igor Vendramin, Aldo Domenico Milano, Ugolino Livi

The Texas Heart Institute Journal

The year 2023 marks the 100th anniversary of the first successful valvotomy for mitral valve stenosis by Elliott C. Cutler in 1923. Closed-chest mitral valve commissurotomy developed further before being replaced by an open procedure after the advent of the heart-lung machine. Currently, because of the almost complete disappearance of rheumatic disease in the Western World, mitral commissurotomies are infrequently performed in those countries, although the procedure-either closed or open-is still performed in developing countries and select patients. This review retraces the 100-year journey from a historic operation to the current era-a milestone in the treatment of patients with mitral …

Does The Type Of Chronic Heart Failure Impact In-Hospital Outcomes For Aortic Valve Replacement Procedures?, Talha Mubashir, John Zaki, Sin Yeong An, Ismael A Salas De Armas, Yafen Liang, Travis Markham, Han Feng, Mehmet H Akay, Angelo Nascimbene, Bindu Akkanti, George W Williams, Fabricio Zasso, Maria Patarroyo Aponte, Igor D Gregoric, Biswajit Kar

The Texas Heart Institute Journal

Background: This study assessed in-hospital outcomes of patients with chronic systolic, diastolic, or mixed heart failure (HF) undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR).

Methods: The Nationwide Inpatient Sample database was used to identify patients with aortic stenosis and chronic HF who underwent TAVR or SAVR between 2012 and 2015. Propensity score matching and multivariate logistic regression were used to determine outcome risk.

Results: A cohort of 9,879 patients with systolic (27.2%), diastolic (52.2%), and mixed (20.6%) chronic HF were included. No statistically significant differences in hospital mortality were noted. Overall, patients with diastolic HF …

Pathway-Driven Rare Germline Variants Associated With Transplant-Associated Thrombotic Microangiopathy (Ta-Tma), Zhihui Zhang, Wei Hong, Qian Wu, Spiridon Tsavachidis, Jian-Rong Li, Christopher I Amos, Chao Cheng, Sarah E Sartain, Vahid Afshar-Kharghan, Jing-Fei Dong, Pavan Bhatraju, Paul J Martin, Robert S Makar, Pavan K Bendapudi, Ang Li

Faculty, Staff and Student Publications

The significance of rare germline mutations in transplant-associated thrombotic microangiopathy (TA-TMA) is not well studied. We performed a genetic association study in 100 adult TA-TMA patients vs. 98 post-transplant controls after matching by race, sex, and year. We focused on 5 pathways in complement, von Willebrand factor (VWF) function and related proteins, VWF clearance, ADAMTS13 function and related proteins, and endothelial activation (3641variants in 52 genes). In the primary analysis focused on 189 functional rare variants, no differential variant enrichment was observed in any of the pathways; specifically, 29 % TA-TMA and 33 % controls had at least 1 rare …

P53 And Ovarian Carcinoma Survival: An Ovarian Tumor Tissue Analysis Consortium Study, Martin Köbel, Eun-Young Kang, Ashley Weir, Peter F Rambau, Cheng-Han Lee, Gregg S Nelson, Prafull Ghatage, Nicola S Meagher, Marjorie J Riggan, Jennifer Alsop, Michael S Anglesio, Matthias W Beckmann, Christiani Bisinotto, Michelle Boisen, Jessica Boros, Alison H Brand, Angela Brooks-Wilson, Michael E Carney, Penny Coulson, Madeleine Courtney-Brooks, Kara L Cushing-Haugen, Cezary Cybulski, Suha Deen, Mona A El-Bahrawy, Esther Elishaev, Ramona Erber, Sian Fereday, Aocs Group, Anna Fischer, Simon A Gayther, Arantzazu Barquin-Garcia, Aleksandra Gentry-Maharaj, C Blake Gilks, Helena Gronwald, Marcel Grube, Paul R Harnett, Holly R Harris, Andreas D Hartkopf, Arndt Hartmann, Alexander Hein, Joy Hendley, Brenda Y Hernandez, Yajue Huang, Anna Jakubowska, Mercedes Jimenez-Linan, Michael E Jones, Catherine J Kennedy, Tomasz Kluz, Jennifer M Koziak, Jaime Lesnock, Jenny Lester, Jan Lubiński, Teri A Longacre, Maria Lycke, Constantina Mateoiu, Bryan M Mccauley, Valerie Mcguire, Britta Ney, Alexander Olawaiye, Sandra Orsulic, Ana Osorio, Luis Paz-Ares, Teresa Ramón Y Cajal, Joseph H Rothstein, Matthias Ruebner, Minouk J Schoemaker, Mitul Shah, Raghwa Sharma, Mark E Sherman, Yurii B Shvetsov, Naveena Singh, Helen Steed, Sarah J Storr, Aline Talhouk, Nadia Traficante, Chen Wang, Alice S Whittemore, Martin Widschwendter, Lynne R Wilkens, Stacey J Winham, Javier Benitez, Andrew Berchuck, David D Bowtell, Francisco J Candido Dos Reis, Ian Campbell, Linda S Cook, Anna Defazio, Jennifer A Doherty, Peter A Fasching, Renée T Fortner, María J García, Marc T Goodman, Ellen L Goode, Jacek Gronwald, David G Huntsman, Beth Y Karlan, Linda E Kelemen, Stefan Kommoss, Nhu D Le, Stewart G Martin, Usha Menon, Francesmary Modugno, Paul Dp Pharoah, Joellen M Schildkraut, Weiva Sieh, Annette Staebler, Karin Sundfeldt, Anthony J Swerdlow, Susan J Ramus, James D Brenton

Faculty, Staff and Student Publications

Our objective was to test whether p53 expression status is associated with survival for women diagnosed with the most common ovarian carcinoma histotypes (high-grade serous carcinoma [HGSC], endometrioid carcinoma [EC], and clear cell carcinoma [CCC]) using a large multi-institutional cohort from the Ovarian Tumor Tissue Analysis (OTTA) consortium. p53 expression was assessed on 6,678 cases represented on tissue microarrays from 25 participating OTTA study sites using a previously validated immunohistochemical (IHC) assay as a surrogate for the presence and functional effect of TP53 mutations. Three abnormal expression patterns (overexpression, complete absence, and cytoplasmic) and the normal (wild type) pattern were …

Barriers To Colonoscopy In Uk Colorectal Cancer Screening Programmes: Qualitative Interviews With Ethnic Minority Groups, Robert S Kerrison, Natalie Gil, Elizabeth Travis, Robyn Jones, Katriina L Whitaker, Colin Rees, Stephen Duffy, Christian Von Wagner

Faculty, Staff and Student Publications

OBJECTIVE: People from ethnic minority backgrounds are less likely to attend colonoscopy, following faecal immunochemical test screening, and are more likely to be diagnosed with colorectal cancer at an advanced stage as a result. The aim of this research was to explore the barriers and facilitators to attending colonoscopy, perceived by ethnic minority groups living in the United Kingdom.

METHODS: Semi-structured online and telephone interviews were conducted with thirty men and women of Black-African (n = 5), Black-Caribbean (n = 5), South Asian (n = 10) and White British (n = 10) descent. Participants were eligible for screening, but had …

First Presentation With Neuropsychiatric Symptoms In Autosomal Dominant Alzheimer's Disease: The Dominantly Inherited Alzheimer's Network Study, Antoinette O'Connor, Helen Rice, Josephine Barnes, Natalie S. Ryan, Kathy Y. Liu, Ricardo Francisco Allegri, Sarah Berman, John M. Ringman, Carlos Cruchaga, Martin R. Farlow, Jason Hassenstab, Jae-Hong Lee, Richard J. Perrin, Chengjie Xiong, Brian Gordon, Allan I. Levey, Alison Goate, Neil Graff-Radford, Johannes Levin, Mathias Jucker, Tammie Benzinger, Eric Mcdade, Hiroshi Mori, James M. Noble, Peter R. Schofield, Ralph N. Martins, Stephen Salloway, Jasmeer Chhatwal, John C. Morris, Randall Bateman, Rob Howard, Suzanne Reeves, Nick C. Fox

Research outputs 2022 to 2026

Behavioural changes and neuropsychiatric symptoms (NPS) commonly occur in Alzheimer’s disease (AD) but may not be recognised as AD-related when they are the presenting feature. NPS are important as they are associated with greater functional impairment, poorer quality of life, accelerated cognitive decline and worsened caregiver burden.1 Autosomal dominant AD (ADAD), although < 1% of total AD cases, provides a valuable opportunity to study the clinical heterogeneity of AD. The young age at onset reduces the prevalence of age-related comorbid pathologies and the near 100% penetrance of pathogenic mutations reduces the likelihood of misdiagnosis.2 Anxiety and depression commonly occur in ADAD family members, with increased levels of depression having been found among predementia female mutation carriers.3 Subsequent studies, however, have shown that anxiety and/or depression are common regardless of mutation status, occurring in almost one in three at-risk individuals, with one study reporting a higher rate of depression in non-carriers (17%) than asymptomatic carriers (5%).4 5 Despite the high frequency of NPS in ADAD families, relatively little is known about the proportion of ADAD cases who present with predominantly behavioural symptoms. Our aims were to assess the first reported clinical change in symptomatic ADAD, to compare presentations across genotypes, and to compare cognitive performance between behavioural and cognitive-led presentations.