Endocrinology, Diabetes, and Metabolism Commons^™

Ube2i Deletion In Adipocytes Causes Lipoatrophy In Mice, Aaron R Cox, Natasha Chernis, Kang Ho Kim, Peter M Masschelin, Pradip K Saha, Shawn M Briley, Robert Sharp, Xin Li, Jessica B Felix, Zheng Sun, David D Moore, Stephanie A Pangas, Sean M Hartig

Faculty, Staff and Students Publications

OBJECTIVE: White adipose tissue (WAT) expansion regulates energy balance and overall metabolic homeostasis. The absence or loss of WAT occurring through lipodystrophy and lipoatrophy contributes to the development of hepatic steatosis and insulin resistance. We previously demonstrated that sole small ubiquitin-like modifier (SUMO) E2-conjugating enzyme Ube2i represses human adipocyte differentiation. The role of Ube2i during WAT development remains unknown.

METHODS: To determine how Ube2i impacts body composition and energy balance, we generated adipocyte-specific Ube2i knockout mice (Ube2i

RESULTS: Surprisingly, Ube2i

CONCLUSIONS: Our results demonstrate that Ube2i expression in mature adipocytes allows WAT expansion during postnatal growth. Deletion of Ube2i in …

Decreasing Post Insulin Hypoglycemia Incidence In End Stage Renal Disease (Esrd) Patients, Anna Lo, Md, Rachana Mundada, Md, Eric Shiffrin, Md, Jenny Wang, Md

Health Equity and Quality Improvement (HEQI) Summit

ESRD patients are vulnerable to hypoglycemia due to impaired insulin clearance, glucose metabolism changes, and effects of dialysis. Hypoglycemic events lead to serious and life-threatening complications.

Aims for Improvement:

To decrease the rate of hypoglycemic events amongst ESRD patients receiving insulin for hyperkalemia treatment.

Understanding Older Adults Living In Medically Underserved Areas Perspectives Regarding Type 2 Diabetes Care Received, Christopher Rogers

Seton Hall University Dissertations and Theses (ETDs)

Older adults with type 2 diabetes living in medically underserved areas (MUAs) have unique health and social needs that must be taken into consideration when supporting their type 2 diabetes treatment and management care. Effective treatment and management of type 2 diabetes for older adults living in MUAs requires incorporating the preferences, desires, needs, values, and goals of the person at the center of the care into his/her care plan. Shifting care to be conducive to the treatment and management goals and plans co-created with older adults living in MUAs based on their individual physical, psychological, social, and spiritual preferences, …

Perceptions Of Family-Level Social Factors That Influence Health Behaviors In Latinx Adolescents And Young Adults At High Risk For Type 2 Diabetes, Erica G Soltero, Neeku Navabi, Felipe G Castro, Stephanie L Ayers, Jenny Mendez, Deborah I Thompson, Gabriel Q Shaibi

Children’s Nutrition Research Center Staff Publications

Given that health behaviors occur within the context of familial social relationships, a deeper understanding of social factors that influence health behaviors in Latinx families is needed to develop more effective diabetes prevention programming. This qualitative study identified perceived family-level social factors that influence health behaviors in Latinx adolescents (12–16 years; N = 16) and young adults (18–24 years; N = 15) with obesity and explored differences in perceptions across sex and age. Participants completed an in-depth interview that was recorded, transcribed, and coded using thematic content analysis. Emergent themes central to health behaviors included: perceived parental roles and responsibilities, …

Bmi And Associated Variables In A Pediatric Gender Clinic Sample, Mirae J. Fornander

Research Days

Background: Studies of transgender/gender diverse (TGD) youth indicate a high prevalence of overweight/obesity and concern for unhealthy weight control behavior.

Objectives/Goal: Describe BMI and the association of medication use, well-being, and recreational activities in treatmentnaïve pediatric TGD patients.

Methods/Design: Chart review of 302 patients (age 3-19, 73.5% sex assigned at birth (SAB) female; 85.8% white) from 2017-20. BMI was calculated by age and SAB using CDC growth charts. Parents reported medication use. Parent and self-reported Pediatric Quality of Life (PEDS-QL) Well-Being and activities were surveyed electronically.

Results: By BMI category, 3.3% were underweight (BMI85% and 29.5% fell >95%. Overweight and …

Do Males With 45,X/46,Xy Mosaicism Have Turner Syndrome, Michelle Knoll

Research Days

Background: Patients with 45,X/46,XY mosaicism can have genitalia spanning the range from typical female to typical male, and the sex assigned at birth is often based on the appearance of the genitalia. According to current nomenclature, only the subgroup assigned female are diagnosed with Turner syndrome (TS) (Gravholt et al, 2017). Clinical practice guidelines recommend that girls with TS be screened for several comorbidities, including short stature, cardiac and renal anomalies, and autoimmune conditions, but there are no recommendations for screening of boys with 45,X/46,XY mosaicism.

Objectives/Goal: We sought to determine if boys with 45,X/46,XY mosaicism exhibited a similar rate …

Effects Of Social Determinants Of Health In Progression To Type 2 Diabetes, Folabi I. Ariganjoye

Applied Research Projects

The prevalence of prediabetes and diabetes in the United States and around the world has increased faster than expected in the last 30 years. The economic burden this costs a nation can be astronomic both in terms of expense and loss in productivity. One-third of U.S. adults, 86 million people, have prediabetes. Effective management is needed that can reach these 86 million, and others at high risk, to reduce their progression to diagnosed Type 2 diabetes. After the literature review, there was not enough literature to support how these led to the progression to diabetes. The abundant literature is centered …

A Neural Basis For Brain Leptin Action On Reducing Type 1 Diabetic Hyperglycemia, Shengjie Fan, Yuanzhong Xu, Yungang Lu, Zhiying Jiang, Hongli Li, Jessie C Morrill, Jing Cai, Qi Wu, Yong Xu, Mingshan Xue, Benjamin R Arenkiel, Cheng Huang, Qingchun Tong

Children’s Nutrition Research Center Staff Publications

Central leptin action rescues type 1 diabetic (T1D) hyperglycemia; however, the underlying mechanism and the identity of mediating neurons remain elusive. Here, we show that leptin receptor (LepR)-expressing neurons in arcuate (LepRArc) are selectively activated in T1D. Activation of LepRArc neurons, Arc GABAergic (GABAArc) neurons, or arcuate AgRP neurons, is able to reverse the leptin’s rescuing effect. Conversely, inhibition of GABAArc neurons, but not AgRP neurons, produces leptin-mimicking rescuing effects. Further, AgRP neuron function is not required for T1D hyperglycemia or leptin’s rescuing effects. Finally, T1D LepRArc neurons show defective nutrient sensing and signs of cellular energy deprivation, which are …

Consumption Of High-Fructose Corn Syrup Compared With Sucrose Promotes Adiposity And Increased Triglyceridemia But Comparable Nafld Severity In Juvenile Iberian Pigs, Magdalena Maj, Brooke Harbottle, Payton A Thomas, Gabriella V Hernandez, Victoria A Smith, Mark S Edwards, Rob K Fanter, Hunter S Glanz, Chad Immoos, Douglas G Burrin, Tasha M Santiago-Rodriguez, Michael R La Frano, Rodrigo Manjarín

Children’s Nutrition Research Center Staff Publications

Background: Fructose consumption has been linked to nonalcoholic fatty liver disease (NAFLD) in children. However, the effect of high-fructose corn syrup (HFCS) compared with sucrose in pediatric NAFLD has not been investigated.

Objectives: We tested whether the isocaloric substitution of dietary sucrose by HFCS would increase the severity of NAFLD in juvenile pigs, and whether this effect would be associated with changes in gut histology, SCFA production, and microbial diversity.

Methods: Iberian pigs, 53-d-old and pair-housed in pens balanced for weight and sex, were randomly assigned to receive a mash diet top-dressed with increasing amounts of sucrose (SUC; n = …

Joint Effects Of Ethnic Enclave Residence And Ambient Volatile Organic Compounds Exposure On Risk Of Gestational Diabetes Mellitus Among Asian/Pacific Islander Women In The United States, Andrew D. Williams, Sandie Ha, Edmond Shenassa, Lynne C. Messer, Jenna Kanner, Pauline Mendola

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: Asian/Pacific Islander (API) communities in the United States often reside in metropolitan areas with distinct social and environmental attributes. Residence in an ethnic enclave, a socially distinct area, is associated with lower gestational diabetes mellitus (GDM) risk, yet exposure to high levels of air pollution, including volatile organic compounds (VOCS), is associated with increased GDM risk. We examined the joint effects of ethnic enclaves and VOCs to better understand GDM risk among API women, the group with the highest prevalence of GDM.

Methods:

We examined 9069 API births in the Consortium on Safe Labor (19 hospitals, 2002–2008). API ethnic …

Triad Of Acute Pancreatitis Coexisting With Diabetic Ketoacidosis And Very Severe Hypertriglyceridemia Successfully Resolved With Insulin Therapy Alone, Akash Patel, Monica Patel, Yvette Wang

Rowan-Virtua Research Day

Diabetic ketoacidosis (DKA) is known to cause mild elevations in triglyceride levels.

Severe hypertriglyceridemia (HTG) is a well-known cause of acute pancreatitis; however, in unique cases, DKA has been shown to cause severe HTG leading to the development of acute pancreatitis (AP).

HTG causing AP only accounts for 1-4% of cases of AP

From the few cases in literature that have reported this triad of DKA, HTG, and AP, even fewer have shown to be successfully treated with insulin therapy alone with the severe degree of HTG that we discuss.

In our case, we have treated a triad of DKA, …

Ethnic Differences In Maternal Cytokines And Adipokines And Their Association With Spontaneous Preterm Delivery, Yelizavet D. Lomakova, Xinhua Chen

Rowan-Virtua Research Day

Spontaneous preterm delivery (SPTD, birth at <37 weeks’ gestation) is a leading cause of infant mortality in the United States [1]. Infants born prematurely are more likely to suffer from both short and long-term complications including neurodevelopmental delay, visual and hearing impairment, and chronic diseases such as heart disease, hypertension and diabetes in later life [2-4]. African American women have a 2-fold increased risk of preterm delivery compared to Caucasian women [5].The reasons for this disparity are poorly understood. This limits the ability to predict and prevent preterm delivery in the most high-risk populations.

Identifying And Predicting Food Parenting Practice Profiles Among Canadian Parents, Claire N Tugault-Lafleur, Olivia De-Jongh González, Teresia M O'Connor, Sheryl O Hughes, Louise C Mâsse

Children’s Nutrition Research Center Staff Publications

Background: Food parenting practices (FPP) can affect children's eating behaviours, yet little is known about how various FPP co-occur. The primary aim was to identify profiles of FPPs use among Canadian parents. Secondary aims included examining sociodemographic correlates of FPP profiles and evaluating whether children's eating behaviours differed across FPP profiles.

Methods: Parents (n = 799) of 5-12-year-old children completed a validated FPP Item Bank and the Children's Eating Behaviour Questionnaire. Latent Class Analysis (LCA) was used to identify distinct FPP profiles. Regression analyses were used to explore associations between FPP profiles, sociodemographic variables (race, sex and education) and children's …

Esophageal Necrosis As An Unexpected Complication Of Diabetic Ketoacidosis, Hayden Smith, Tricia James

Providence Portland Medical Center Internal Medicine 2021

No abstract provided.

N-3 Fatty Acid Biomarkers And Incident Type 2 Diabetes: An Individual Participant-Level Pooling Project Of 20 Prospective Cohort Studies, Frank Qian, Andres V Ardisson Korat, Fumiaki Imamura, Matti Marklund, Nathan Tintle, Jyrki K Virtanen, Xia Zhou, Julie K Bassett, Heidi Lai, Yoichiro Hirakawa, Kuo-Liong Chien, Alexis C Wood, Maria Lankinen, Rachel A Murphy, Cecilia Samieri, Kamalita Pertiwi, Vanessa D De Mello, Weihua Guan, Nita G Forouhi, Nick Wareham, Interact Consortium Frank B Hu, Ulf Riserus, Lars Lind, William S Harris, Aladdin H Shadyab, Jennifer G Robinson, Lyn M Steffen, Allison Hodge, Graham G Giles, Toshiharu Ninomiya, Matti Uusitupa, Jaakko Tuomilehto, Jaana Lindström, Markku Laakso, David S Siscovick, Catherine Helmer, Johanna M Geleijnse, Jason H Y Wu, Amanda Fretts, Rozenn N Lemaitre, Renata Micha, Dariush Mozaffarian, Qi Sun

Children’s Nutrition Research Center Staff Publications

Objective: Prospective associations between n-3 fatty acid biomarkers and type 2 diabetes (T2D) risk are not consistent in individual studies. We aimed to summarize the prospective associations of biomarkers of α-linolenic acid (ALA), eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), and docosahexaenoic acid (DHA) with T2D risk through an individual participant-level pooled analysis.

Research design and methods: For our analysis we incorporated data from a global consortium of 20 prospective studies from 14 countries. We included 65,147 participants who had blood measurements of ALA, EPA, DPA, or DHA and were free of diabetes at baseline. De novo harmonized analyses were performed …

A Hindbrain Dopaminergic Neural Circuit Prevents Weight Gain By Reinforcing Food Satiation, Yong Han, Guobin Xia, Yanlin He, Yang He, Monica Farias, Yong Xu, Qi Wu

Children’s Nutrition Research Center Staff Publications

The neural circuitry mechanism that underlies dopaminergic (DA) control of innate feeding behavior is largely uncharacterized. Here, we identified a subpopulation of DA neurons situated in the caudal ventral tegmental area (cVTA) directly innervating DRD1-expressing neurons within the lateral parabrachial nucleus (LPBN). This neural circuit potently suppresses food intake via enhanced satiation response. Notably, this cohort of DAcVTA neurons is activated immediately before the cessation of each feeding bout. Acute inhibition of these DA neurons before bout termination substantially suppresses satiety and prolongs the consummatory feeding. Activation of postsynaptic DRD1LPBN neurons inhibits feeding, whereas genetic deletion of Drd1 within the …

Mitophagy Deficiency Increases Nlrp3 To Induce Brown Fat Dysfunction In Mice, Myoung Seok Ko, Ji Young Yun, In-Jeoung Baek, Jung Eun Jang, Jung Jin Hwang, Seung Eun Lee, Seung-Ho Heo, David A Bader, Chul-Ho Lee, Jaeseok Han, Jong-Seok Moon, Jae Man Lee, Eun-Gyoung Hong, In-Kyu Lee, Seong Who Kim, Joong Yeol Park, Sean M Hartig, Un Jung Kang, David D Moore, Eun Hee Koh, Ki-Up Lee

Faculty, Staff and Students Publications

Although macroautophagy/autophagy deficiency causes degenerative diseases, the deletion of essential autophagy genes in adipocytes paradoxically reduces body weight. Brown adipose tissue (BAT) plays an important role in body weight regulation and metabolic control. However, the key cellular mechanisms that maintain BAT function remain poorly understood. in this study, we showed that global or brown adipocyte-specific deletion of pink1, a Parkinson disease-related gene involved in selective mitochondrial autophagy (mitophagy), induced BAT dysfunction, and obesity-prone type in mice. Defective mitochondrial function is among the upstream signals that activate the NLRP3 inflammasome. NLRP3 was induced in brown adipocyte precursors (BAPs) from pink1 …

Acetyl-Coa And Metabolite Fluxes Regulate White Adipose Tissue Expansion, Jessica B Felix, Aaron R Cox, Sean M Hartig

Faculty, Staff and Students Publications

White adipose tissue (WAT) depends on coordinated regulation of transcriptional and metabolic pathways to respond to whole-body energy demands. We highlight metabolites that contribute to biosynthetic reactions for WAT expansion. Recent studies have precisely defined how byproducts of carbohydrate and lipid metabolism affect physiological and endocrine functions in adipocytes. We emphasize the critical emerging roles of short-chain fatty acids (SCFAs) and tricarboxylic acid (TCA) cycle metabolites that connect lipogenesis to WAT energy balance and endocrine functions. These insights address how adipocytes use small molecules generated from central carbon metabolism to measure responses to nutritional stress.

Type 2 Diabetes Subgroups, Risk For Complications, And Differential Effects Due To An Intensive Lifestyle Intervention, Michael P Bancks, Haiying Chen, Ashok Balasubramanyam, Alain G Bertoni, Mark A Espeland, Steven E Kahn, Scott Pilla, Elizabeth Vaughan, Lynne E Wagenknecht

Faculty, Staff and Students Publications

OBJECTIVE: We reevaluated the Action for Health in Diabetes (Look AHEAD) intervention, incorporating diabetes subgroups, to identify whether intensive lifestyle intervention (ILI) is associated with differential risk for cardiovascular disease (CVD) by diabetes subgroup.

RESEARCH DESIGN AND METHODS: In the Look AHEAD trial, 5,145 participants, aged 45-76 years, with type 2 diabetes (T2D) and overweight or obesity were randomly assigned to 10 years of ILI or a control condition of diabetes support and education. The ILI focused on weight loss through decreased caloric intake and increased physical activity. To characterize diabetes subgroups, we applied k-means clustering to data on age …

Adrenal Insufficiency Following Intraarticular Steroid Injections, Julia Hitchcock, Ankur Gupta

Medical Student Research Symposium Abstracts and Posters

A 59-year-old woman presented with fatigue and 50 pounds weight gain in the last two years.She has been receiving triamcinolone steroid injections in both knees every three months for the last two years.She has also been receiving triamcinolone injections in ankles sporadically during this time period. Laboratory evaluation showed undetectable serum cortisol and inappropriately normal serum adrenocorticotropic hormone (ACTH). The patient underwent cosyntropinstimulation test confirming secondary adrenal insufficiency (Table 1).Magnetic resonance imaging (MRI) showed a normal pituitary gland with no tumors.She was started on hydrocortisone 10mg twice daily with improvement in fatigue.The patient was recommended to minimize steroid injections. The …