Endocrinology, Diabetes, and Metabolism Commons^™

A Pancreatic Player In Dementia: Pathological Role For Islet Amyloid Polypeptide Accumulation In The Brain, Angelina S Bortoletto, Ronald J Parchem

Faculty, Staff and Students Publications

Type 2 diabetes mellitus patients have a markedly higher risk of developing dementia. While multiple factors contribute to this predisposition, one of these involves the increased secretion of amylin, or islet amyloid polypeptide, that accompanies the pathophysiology of type 2 diabetes mellitus. Islet amyloid polypeptide accumulation has undoubtedly been implicated in various forms of dementia, including Alzheimer’s disease and vascular dementia, but the exact mechanisms underlying islet amyloid polypeptide’s causative role in dementia are unclear. In this review, we have summarized the literature supporting the various mechanisms by which islet amyloid polypeptide accumulation may cause neuronal damage, ultimately leading to …

A Novel Prediction Model Of The Risk Of Pancreatic Cancer Among Diabetes Patients Using Multiple Clinical Data And Machine Learning, Shih-Min Chen, Phan Thanh Phuc, Phung-Anh Nguyen, Whitney Burton, Shwu-Jiuan Lin, Weei-Chin Lin, Christine Y Lu, Min-Huei Hsu, Chi-Tsun Cheng, Jason C Hsu

Faculty, Staff and Students Publications

INTRODUCTION: Pancreatic cancer is associated with poor prognosis. Considering the increased global incidence of diabetes cases and that individuals with diabetes are considered a high-risk subpopulation for pancreatic cancer, it is critical to detect the risk of pancreatic cancer within populations of person living = with diabetes. This study aimed to develop a novel prediction model for pancreatic cancer risk among patients with diabetes, using = a real-world database containing clinical features and employing numerous artificial intelligent approach algorithms.

METHODS: This retrospective observational study analyzed data on patients with Type 2 diabetes from a multisite Taiwanese EMR database between 2009 …

Type 1 Diabetes Genetic Risk Score Differentiates Subgroups Of Ketosis-Prone Diabetes, Deborah Osafehinti, Surya N Mulukutla, Christiane S Hampe, Ruchi Gaba, Nalini Ram, Michael N Weedon, Richard A Oram, Ashok Balasubramanyam

Faculty, Staff and Students Publications

OBJECTIVE: To determine whether genetic risk for type 1 diabetes (T1D) differentiates the four Aβ subgroups of ketosis-prone diabetes (KPD), where A+ and A- define the presence or absence of islet autoantibodies and β+ and β- define the presence or absence of β-cell function.

RESEARCH DESIGN AND METHODS: We compared T1D genetic risk scores (GRS) of patients with KPD across subgroups, race/ethnicity, β-cell function, and glycemia.

RESULTS: Among 426 patients with KPD (54% Hispanic, 31% African American, 11% White), rank order of GRS was A+β- > A+β+ = A-β- > A-β+. GRS of A+β- KPD was lower than that of a T1D …

Plasma Amino Acid Signatures Define Types Of Pediatric Diabetes, Mustafa Tosur, Jean W Hsu, Saima Deen, Xiaofan Huang, Danielle Guffey, Serife Uysal, Marcela Astudillo, Maria J Redondo, Farook Jahoor, Ashok Balasubramanyam

Faculty, Staff and Students Publications

BACKGROUND & AIMS: Metabolic biomarkers with pathophysiological relevance is lacking in pediatric diabetes. We aimed to identify novel metabolic biomarkers in pediatric type 1 (T1D) and type 2 diabetes (T2D). We hypothesized that (1) targeted plasma metabolomics, focused on plasma amino acid concentrations, could identify distinctively altered patterns in children with T1D or T2D, and (2) there are specific changes in concentrations of metabolites related to branch chain amino acids (BCAA) and arginine metabolism in children with T2D.

METHODS: In a pilot study, we enrolled children with T1D (n = 15) and T2D (n = 13), and healthy controls (n …

Serum Metabolomic Markers Of Dairy Consumption: Results From The Atherosclerosis Risk In Communities Study And The Bogalusa Heart Study, Lauren Bernard, Jingsha Chen, Hyunju Kim, Zhijie Huang, Lydia Bazzano, Lu Qi, Jiang He, Varun S Rao, Kaitlin S Potts, Tanika N Kelly, Kari E Wong, Lyn M Steffen, Bing Yu, Eugene P Rhee, Casey M Rebholz

Faculty, Staff and Student Publications

BACKGROUND: Dairy consumption is related to chronic disease risk; however, the measurement of dairy consumption has largely relied upon self-report. Untargeted metabolomics allows for the identification of objective markers of dietary intake.

OBJECTIVES: We aimed to identify associations between dietary dairy intake (total dairy, low-fat dairy, and high-fat dairy) and serum metabolites in 2 independent study populations of United States adults.

METHODS: Dietary intake was assessed with food frequency questionnaires. Multivariable linear regression models were used to estimate cross-sectional associations between dietary intake of dairy and 360 serum metabolites analyzed in 2 subgroups of the Atherosclerosis Risk in Communities study …

Lowering Of Circulating Sclerostin May Increase Risk Of Atherosclerosis And Its Risk Factors: Evidence From A Genome-Wide Association Meta-Analysis Followed By Mendelian Randomization, Jie Zheng, Eleanor Wheeler, Maik Pietzner, Till F M Andlauer, Michelle S Yau, April E Hartley, Ben Michael Brumpton, Humaira Rasheed, John P Kemp, Monika Frysz, Jamie Robinson, Sjur Reppe, Vid Prijatelj, Kaare M Gautvik, Louise Falk, Winfried Maerz, Ingrid Gergei, Patricia A Peyser, Maryam Kavousi, Paul S De Vries, Clint L Miller, Maxime Bos, Sander W Van Der Laan, Rajeev Malhotra, Markus Herrmann, Hubert Scharnagl, Marcus Kleber, George Dedoussis, Eleftheria Zeggini, Maria Nethander, Claes Ohlsson, Mattias Lorentzon, Nick Wareham, Claudia Langenberg, Michael V Holmes, George Davey Smith, Jonathan H Tobias

Faculty, Staff and Student Publications

OBJECTIVE: In this study, we aimed to establish the causal effects of lowering sclerostin, target of the antiosteoporosis drug romosozumab, on atherosclerosis and its risk factors.

METHODS: A genome-wide association study meta-analysis was performed of circulating sclerostin levels in 33,961 European individuals. Mendelian randomization (MR) was used to predict the causal effects of sclerostin lowering on 15 atherosclerosis-related diseases and risk factors.

RESULTS: We found that 18 conditionally independent variants were associated with circulating sclerostin. Of these, 1 cis signal in SOST and 3 trans signals in B4GALNT3, RIN3, and SERPINA1 regions showed directionally opposite signals for sclerostin levels and …

Metabolomic Signatures Of Sedentary Behavior And Cardiometabolic Traits In Us Hispanics/Latinos: Results From Hchs/Sol, Jee-Young Moon, Jin Choul Chai, Bing Yu, Rebecca J Song, Guo-Chong Chen, Mariaelisa Graff, Martha L Daviglus, Queenie Chan, Bharat Thyagarajan, Sheila F Castaneda, Megan L Grove, Jianwen Cai, Xiaonan Xue, Yasmin Mossavar-Rahmani, Ramachandran S Vasan, Eric Boerwinkle, Robert C Kaplan, Qibin Qi

Faculty, Staff and Student Publications

PURPOSE: The aim of this study was to understand the serum metabolomic signatures of moderate-to-vigorous physical activity (MVPA) and sedentary behavior, and further associate their metabolomic signatures with incident cardiometabolic diseases.

METHODS: This analysis included 2711 US Hispanics/Latinos from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) aged 18-74 yr (2008-2011). An untargeted, liquid chromatography-mass spectrometry was used to profile the serum metabolome. The associations of metabolites with accelerometer-measured MVPA and sedentary time were examined using survey linear regressions adjusting for covariates. The weighted correlation network analysis identified modules of correlated metabolites in relation to sedentary time, and the modules …

Diabetes Risk During Pregnancy Among Second-Generation Immigrants: A National Cohort Study In Sweden, Per Wändell, Xinjun Li, Nouha Saleh Stattin, Axel C Carlsson, Jan Sundquist, Casey Crump, Kristina Sundquist

Faculty, Staff and Student Publications

BACKGROUND AND AIMS: Gestational diabetes is more common in many first-generation immigrant women in Europe and other Western countries. Less is known about second-generation immigrant women; such knowledge is needed to understand generational influences on diabetes risk. We aimed to study second-generation immigrant women regarding the presence of all types of diabetes during pregnancy.

METHODS AND RESULTS: A cohort study was conducted using the Swedish National Birth Register, the National Patient Register, and the total Population Register. We used Cox regression analysis to compute hazard ratios (HRs) and 99% confidence intervals (99% CI) for any diabetes during pregnancy and specific …

Vitamin D Deficiency Among Children And Adolescents Living In Sunny South Texas, Yoscelina E. Martinez-Lopez, Margarita Faz, Beatriz Tapia, Juan C. Lopez-Alvarenga, Francisco J. Cervantes

Research Symposium

Background: Exposure to sunlight is essential to produce Vitamin D (ViD). Recent studies suggest obesity is associated with low ViD concentration. Living in South Texas with 220 sunny days a year should be enough to maintain adequate ViD levels. We aimed to analyze ViD levels and obesity in children and adolescents.

Methods: We included 1239 pediatric (1.5 to 18.8 years old) participants (primary care clinic from Laredo) with registered CDC percentiles of BMI (pBMI) and serum concentrations of ViD (Atellica™). Data are described as median (p25, p75), Loess correlation between pBMI and ViD, ANCOVA to adjust by age, sex, and …

Efficacy Of Scrambler Therapy In Patients With Painful Diabetic Peripheral Neuropathy: A Single-Arm, Prospective, Pilot Study, Seung Hee Yoo, Won-Joong Kim, Ji Seon Chae, Bo Kyung Kang, Min Jeong Kang, Min Hyouk Beak

Faculty, Staff and Student Publications

BACKGROUND: A variety of medications are available to manage painful diabetic peripheral neuropathy (DPN), but the proper treatment remains challenging. Accordingly, various neuromodulation modalities have been used. However, no prospective clinical trials have evaluated the use of scrambler therapy (ST) in painful DPN. This study aimed to explore the long-term effects of ST in managing painful DPN.

METHODS: The patients received 10 consecutive STs of 45 minutes every 1 to 2 days. The primary outcome was pain score. We measured the visual analog scale (VAS) pain scores at baseline, during ST, immediately after ST, and at 1, 2, 3, and …

A Case Of Osteogenesis Imperfecta In A Patient Diagnosed In Adulthood, Khalid Sheikh, M. Lastovica, N. S. Appareddy, R. Wagner, E. Luna

Research Symposium

Background: Osteogenesis imperfecta (OI) is an extremely rare inherited connective tissue disorder, with an incidence of 1 in 20,000 births in the United States. Our aim is to assist other providers in diagnosing and managing patients with OI and concurrent medical morbidities.

Case Presentation: A 21 year old male with a BMI of 34 and a lifetime history of over 10 fractures presented to the Emergency department after a complex seizure at home. The seizure was witnessed by his mother and lasted less than one minute. He had another seizure two weeks prior to presentation. In the ED, the patient …

Author Correction: Spatial Organization Of The Mouse Retina At Single Cell Resolution By Merfish, Jongsu Choi, Jin Li, Salma Ferdous, Qingnan Liang, Jeffrey R Moffitt, Rui Chen

Faculty, Staff and Students Publications

No abstract provided.

Insulin Resistance And Insulin Handling In Chronic Kidney Disease, Vishnu P Parvathareddy, Jiao Wu, Sandhya S Thomas

Faculty, Staff and Students Publications

Insulin regulates energy metabolism involving multiple organ systems. Insulin resistance (IR) occurs when organs exhibit reduced insulin sensitivity, leading to difficulties in maintaining glucose homeostasis. IR ensures decades prior to development of overt diabetes and can cause silent metabolic derangements. IR is typically seen very early in the course of chronic kidney disease (CKD) and is evident even when the estimated glomerular filtration rate (eGFR) is within the normal range and IR persists at various stages of kidney disease. In this article, we will discuss insulin handling by the kidneys, mechanisms responsible for IR in CKD, measurements and management of …

Corrected Analysis Of “The Effects Of Bright Light Treatment On Affective Symptoms In People With Dementia: A 24-Week Cluster Randomized Controlled Trial” That Accounts For Clustering And Nesting Verifies Conclusions, Yasaman Jamshidi-Naeini, Lilian Golzarri-Arroyo, Abu Bakkar Siddique, Colby J Vorland, Miriam Jocelyn Rodriguez, Richard J Holden, David B Allison

Children’s Nutrition Research Center Staff Publications

In this correspondence, we explain the reasoning for invalidity of the analysis choices by Kolberg et al., and provide the results produced using correct statistical procedures for their study design. Reassuringly, we could verify the original conclusions. That is, results of the corrected statistical models are similar to the results of the original analysis. Regardless of the magnitude of difference that corrected statistical methods make, results and conclusions that are derived from invalid methods are unsubstantiated. By verifying the results, we allow the readers to be assured that the published conclusions in the study by Kolberg et al. now rest …

Evaluation Of Acceptability, Functionality, And Validity Of A Passive Image-Based Dietary Intake Assessment Method In Adults And Children Of Ghanaian And Kenyan Origin Living In London, Uk, Modou L Jobarteh, Megan A Mccrory, Benny Lo, Konstantinos K Triantafyllidis, Jianing Qiu, Jennifer P Griffin, Edward Sazonov, Mingui Sun, Wenyan Jia, Tom Baranowski, Alex K Anderson, Kathryn Maitland, Gary Frost

Children’s Nutrition Research Center Staff Publications

Background: Accurate estimation of dietary intake is challenging. However, whilst some progress has been made in high-income countries, low- and middle-income countries (LMICs) remain behind, contributing to critical nutritional data gaps. This study aimed to validate an objective, passive image-based dietary intake assessment method against weighed food records in London, UK, for onward deployment to LMICs.

Methods: Wearable camera devices were used to capture food intake on eating occasions in 18 adults and 17 children of Ghanaian and Kenyan origin living in London. Participants were provided pre-weighed meals of Ghanaian and Kenyan cuisine and camera devices to automatically capture images …

Progression Of Comorbidities In Youth With Overweight Or Obesity During The Covid-19 Pandemic., Erica Wee, Ashley K. Sherman, Safa Farrukh, Mark A. Clements, Kelsee Halpin, Yun Yan

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Childhood obesity rates have continued to increase with the COVID-19 pandemic. However, data are limited on the impact of increasing obesity on associated comorbidities.

METHODS: We evaluated the progression of overweight- or obesity-associated comorbidities by investigating change in laboratory results pre-COVID-19 pandemic and post-COVID-19 pandemic onset in youth with overweight or obesity. We defined progression of comorbidities based on increase in category rather than absolute change in value.

RESULTS: HbA1c progression was seen in 19%, and LDL cholesterol progression was seen in 26%, as defined by categories. HbA1c progression and LDL cholesterol progression were significantly correlated. HbA1c and LDL …

Clinical Practice Panel: Diabetes Mellitus Management In A Medical-Surgical Unit, Jane Tajonera

2023 South Division Nursing Research Conference

No abstract provided.

Preface: Causes Of Obesity, Theories, Conjectures And Evidence, David B Allison, Thorkild I A Sørensen, Kevin D Hall, John R Speakman

Children’s Nutrition Research Center Staff Publications

No abstract provided.

Sex Hormone-Binding Globulin (Shbg) Mitigates Er Stress And Improves Viability And Insulin Sensitivity In Adipose-Derived Mesenchymal Stem Cells (Asc) Of Equine Metabolic Syndrome (Ems)-Affected Horses, Nabila Bourebaba, Mateusz Sikora, Badr Qasem, Lynda Bourebaba, Krzysztof Marycz

Faculty, Staff and Student Publications

BACKGROUND: Equine metabolic syndrome (EMS), which encompasses insulin resistance, low-grade inflammation and predisposition to laminitis is a critical endocrine disorder among the most prevalent conditions affecting horses from different breeds. According to the most recent research, low human sex hormone-binding globulin (SHBG) serum levels correlate with an increased risk of obesity, insulin resistance and diabetes, and may contribute to overall metabolic dysregulations. This study aimed to test whether exogenous SHBG could protect EMS affected adipose-derived stromal stem cells (EqASC

METHODS: EqASC

RESULTS: Obtained data demonstrated that exogenous SHBG treatment significantly promoted ASCs cells proliferation, cell cycle and survival with reduced …

A Split And Inducible Adenine Base Editor For Precise In Vivo Base Editing, Hongzhi Zeng, Qichen Yuan, Fei Peng, Dacheng Ma, Ananya Lingineni, Kelly Chee, Peretz Gilberd, Emmanuel C Osikpa, Zheng Sun, Xue Gao

Faculty, Staff and Students Publications

DNA base editors use deaminases fused to a programmable DNA-binding protein for targeted nucleotide conversion. However, the most widely used TadA deaminases lack post-translational control in living cells. Here, we present a split adenine base editor (sABE) that utilizes chemically induced dimerization (CID) to control the catalytic activity of the deoxyadenosine deaminase TadA-8e. sABE shows high on-target editing activity comparable to the original ABE with TadA-8e (ABE8e) upon rapamycin induction while maintaining low background activity without induction. Importantly, sABE exhibits a narrower activity window on DNA and higher precision than ABE8e, with an improved single-to-double ratio of adenine editing and …

Sex Differences In Paternal Arsenic-Induced Intergenerational Metabolic Effects Are Mediated By Estrogen, Yanfeng Xue, Yingyun Gong, Xin Li, Fei Peng, Guolian Ding, Zhao Zhang, Junchao Shi, Ilma Saleh Savul, Yong Xu, Qi Chen, Leng Han, Shengyong Mao, Zheng Sun

Faculty, Staff and Students Publications

BACKGROUND: Gene-environment interactions contribute to metabolic disorders such as diabetes and dyslipidemia. In addition to affecting metabolic homeostasis directly, drugs and environmental chemicals can cause persistent alterations in metabolic portfolios across generations in a sex-specific manner. Here, we use inorganic arsenic (iAs) as a prototype drug and chemical to dissect such sex differences.

METHODS: After weaning, C57BL/6 WT male mice were treated with 250 ppb iAs in drinking water (iAsF0) or normal water (conF0) for 6 weeks and then bred with 15-week-old, non-exposed females for 3 days in cages with only normal water (without iAs), to generate iAsF1 or conF1 …

Diabetic Ketoacidosis Diagnosis In A Hospital Setting., Amber M Healy, Mallory Faherty, Zeryab Khan, Naveen Emara, Cody Carter, Andrew Scheidemantel, Musa Abu-Jubara, Robert Young

OhioHealth Research Institute Articles

CONTEXT: Diabetic ketoacidosis (DKA) is an endocrine emergency that can occur in people with diabetes. Its incidence is estimated to be 220,340 hospital admissions each year. Treatment algorithms include fluid resuscitation, intravenous (IV) insulin infusion, and scheduled electrolyte and glucose monitoring. The misdiagnosis of DKA in the setting of hyperglycemic emergencies results in overtreatment and unnecessary increases in healthcare utilization and costs.

OBJECTIVES: The aims of this study were to determine how often DKA is overdiagnosed in the context of other acute hyperglycemic emergencies, to describe the baseline characteristics of patients, to determine the hospital treatments for DKA, and to …

Complete Enucleation Of A Complicated Solid Pseudopapillary Neoplasm Of Pancreas: A Case Report, Mohammad Saydul Aman, Bidhan Chandra Das, Md Najmul Haque, Sarwar Ahmed Sobhan, Ashis Saha

Faculty, Staff and Student Publications

INTRODUCTION: Solid pseudopapillary neoplasm (SPN) of the pancreas is a rare pancreatic tumor, usually affecting young females. It is categorized as a low-grade malignant tumor without any specific epithelial differentiation, which can occur anywhere in the pancreas.

CASE PRESENTATION: Here, we present the case of a 35-year-old lady who presented to us with abdominal pain and a pancreatic mass. She had a prior laparotomy at a different center without any specific intervention for the lump. After presenting to our center, she was managed through proper evaluation and adequate preparation for surgery. The diagnosis was challenging, and so was the surgery. …

Adolescent- And Young Adult-Reported Outcomes And Use Of Continuous Glucose Monitoring Features: A Report From The City Trial, Laurel H. Messer, Colleen Bauza, Kellee M. Miller, Mark A. Clements, Daniel J. Desalvo, Jennifer Sherr, Ruth S. Weinstock, Korey Hood, Lori M. Laffel

Manuscripts, Articles, Book Chapters and Other Papers

Objective. To evaluate patterns of continuous glucose monitor (CGM) use and perceptions of quality of life in adolescents/young adults with type 1 diabetes (T1D) after using CGM for up to 52 weeks in the CGM Intervention in Teens and Young (CITY) Adults randomized clinical trial (RCT). Subjects and Methods. Participants with T1D were initially randomized 1 : 1 to use of CGM or blood glucose meter (BGM) for 26 weeks. Following the RCT, participants in the BGM group initiated CGM (BGM–CGM cohort) and participants in the CGM group continued CGM (CGM–CGM cohort) for another 26 weeks. Problem Areas …

Differences In Hyperandrogenism Related To Early Detection Of Non-Classical Congenital Adrenal Hyperplasia On Second Newborn Screen, Bonnie Mccann-Crosby, Mark C Liang, Mitchell E Geffner, Christina M Koppin, Nicole R Fraga, V Reid Sutton, Lefkothea P Karaviti, Gagandeep Bhullar, Mimi S Kim

Faculty, Staff and Students Publications

Screening for congenital adrenal hyperplasia (CAH) remains heterogenous across geographies—we sought to determine the proportion of non-classical CAH (NCAH) detection by one vs. two newborn screens (NBS) in two U.S. regions. Data were collected at tertiary centers in Houston (HOU) and Los Angeles (LA) on 35 patients with NCAH, comparing patients identified via the NBS vs. during childhood, 17-hydroxyprogesterone (17-OHP) levels, genotype, and phenotype. The NBS filter-paper 17-OHP levels and daily cutoffs were recorded on initial and second screens. In all, 53% of patients with NCAH in the HOU cohort were identified as infants via the second NBS. Patients identified …

Global Sumoylation In Mouse Oocytes Maintains Oocyte Identity And Regulates Chromatin Remodeling And Transcriptional Silencing At The End Of Folliculogenesis, Shawn M Briley, Avery A Ahmed, Tessa E Steenwinkel, Peixin Jiang, Sean M Hartig, Karen Schindler, Stephanie A Pangas

Faculty, Staff and Students Publications

Meiotically competent oocytes in mammals undergo cyclic development during folliculogenesis. Oocytes within ovarian follicles are transcriptionally active, producing and storing transcripts required for oocyte growth, somatic cell communication and early embryogenesis. Transcription ceases as oocytes transition from growth to maturation and does not resume until zygotic genome activation. Although SUMOylation, a post-translational modification, plays multifaceted roles in transcriptional regulation, its involvement during oocyte development remains poorly understood. In this study, we generated an oocyte-specific knockout of Ube2i, encoding the SUMO E2 enzyme UBE2I, using Zp3-cre+ to determine how loss of oocyte SUMOylation during folliculogenesis affects oocyte development. Ube2i Zp3-cre+ female …

The Transcription Factor Chrebp Links Mitochondrial Lipidomes To Mitochondrial Morphology And Progression Of Diabetic Kidney Disease, Li Li, Jianyin Long, Koki Mise, Naravat Poungavrin, Philip L Lorenzi, Iqbal Mahmud, Lin Tan, Pradip K Saha, Yashpal S Kanwar, Benny H Chang, Farhad R Danesh

Faculty, Staff and Students Publications

A substantial body of evidence has established the contributions of both mitochondrial dynamics and lipid metabolism to the pathogenesis of diabetic kidney disease (DKD). However, the precise interplay between these two key metabolic regulators of DKD is not fully understood. Here, we uncover a link between mitochondrial dynamics and lipid metabolism by investigating the role of carbohydrate-response element-binding protein (ChREBP), a glucose-responsive transcription factor and a master regulator of lipogenesis, in kidney podocytes. We find that inducible podocyte-specific knockdown of ChREBP in diabetic db/db mice improves key biochemical and histological features of DKD in addition to significantly reducing mitochondrial fragmentation. …

Characterization And Quantification Of Adeno-Associated Virus Capsid-Loading States By Multi-Wavelength Analytical Ultracentrifugation With Ultrascan, Amy Henrickson, Xiaozhe Ding, Austin G Seal, Zhe Qu, Lauren Tomlinson, John Forsey, Viviana Gradinaru, Kazuhiro Oka, Borries Demeler

Faculty, Staff and Students Publications

Aim:

We present multi-wavelength (MW) analytical ultracentrifugation (AUC) methods offering superior accuracy for adeno-associated virus characterization and quantification.

Methods:

Experimental design guidelines are presented for MW sedimentation velocity and analytical buoyant density equilibrium AUC.

Results:

Our results were compared with dual-wavelength AUC, transmission electron microscopy and mass photometry. In contrast to dual-wavelength AUC, MW-AUC correctly quantifies adeno-associated virus capsid ratios and identifies contaminants. In contrast to transmission electron microscopy, partially filled capsids can also be detected and quantified. In contrast to mass photometry, first-principle results are obtained.

Conclusion:

Our study demonstrates the improved information provided by MW-AUC, highlighting the utility …

Association Between Right Heart Catheterization Hemodynamics And Glycosylated Hemoglobin Levels In Adults With Heart Failure With Reduced Ejection Fraction, Gaspar Del Rio-Pertuz, Cristina Morataya, Kanak Parmar, Zeyad Elharabi, Daniel Davis, Mostafa Abohelwa, Ozman Ochoa, Alison Tran, Kenneth Nugent, David Paniagua, Erwin Argueta-Sosa

Faculty, Staff and Students Publications

UNLABELLED: This study hypothesized that elevated glycosylated hemoglobin (HbA1c) levels are associated with abnormal right heart catheterization (RHC) hemodynamic parameters in patients with heart failure with reduced ejection fraction (HFrEF) and no prior diagnosis of diabetes.

METHODS: Retrospective cohort study of adult patients with HFrEF and no prior diagnosis of diabetes who underwent RHC and had HbA1c levels measured 30 days before or after the RHC. This study excluded patients who had received blood transfusions within 90 days prior to HbA1c measurement and patients with known diabetes. Univariate and multivariate regression analyses adjusted for age, sex, and BMI were used …

Emotional Distress And Cardiovascular Disease Risk Among Participants Enrolled In The Glycemia Reduction Approaches In Diabetes: A Comparative Effectiveness (Grade) Study, Gladys Crespo-Ramos, Ionut Bebu, Heidi Krause-Steinrauf, Claire J Hoogendoorn, Ran Fang, Dominic Ehrmann, Caroline Presley, Aanand D Naik, Aimee Katona, Elizabeth A Walker, Andrea Cherrington, Jeffrey S Gonzalez

Faculty, Staff and Student Publications

AIMS: People with type 2 diabetes (T2DM) have an increased risk of cardiovascular disease (CVD). We examined depressive symptoms (DS) and diabetes distress (DD) in relation to the estimated 10-year risk of CVD in adults with T2DM enrolled in the GRADE Emotional Distress Substudy.

METHODS: Linear regression models examined the associations of baseline DS and DD with estimated 10-year risk of CVD using the Atherosclerotic Cardiovascular Disease (ASCVD) risk score, adjusting for age, sex, race/ethnicity, education, income, diabetes duration, diabetes-related complications, and HbA1c.

RESULTS: A total of 1,605 GRADE participants were included: 54% Non-Latino (NL) White, 18% Latino, 19% NL-Black, …