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Stem Cell And Niche Regulation In Human Short Bowel Syndrome, Vered A Gazit, Elzbieta A Swietlicki, Miranda U Liang, Adam Surti, Raechel Mcdaniel, Mackenzie Geisman, David M Alvarado, Matthew A Ciorba, Grant Bochicchio, Obeid Ilahi, John Kirby, William J Symons, Nicholas O Davidson, Marc S. Levin, Deborah C Rubin Dec 2020

Stem Cell And Niche Regulation In Human Short Bowel Syndrome, Vered A Gazit, Elzbieta A Swietlicki, Miranda U Liang, Adam Surti, Raechel Mcdaniel, Mackenzie Geisman, David M Alvarado, Matthew A Ciorba, Grant Bochicchio, Obeid Ilahi, John Kirby, William J Symons, Nicholas O Davidson, Marc S. Levin, Deborah C Rubin

Open Access Publications

Loss of functional small bowel surface area following surgical resection for disorders such as Crohn's disease, intestinal ischemic injury, radiation enteritis, and in children, necrotizing enterocolitis, atresia, and gastroschisis, may result in short bowel syndrome, with attendant high morbidity, mortality, and health care costs in the United States. Following resection, the remaining small bowel epithelium mounts an adaptive response, resulting in increased crypt cell proliferation, increased villus height, increased crypt depth, and enhanced nutrient and electrolyte absorption. Although these morphologic and functional changes are well described in animal models, the adaptive response in humans is less well understood. Clinically the …


Pomalidomide, Dexamethasone, And Daratumumab In Relapsed Refractory Multiple Myeloma After Lenalidomide Treatment., David S Siegel, Gary J Schiller, Christy Samaras, Michael Sebag, Jesus Berdeja, Siddhartha Ganguly, Jeffrey Matous, Kevin Song, Christopher S Seet, Giampaolo Talamo, Mirelis Acosta-Rivera, Michael Bar, Donald Quick, Bertrand Anz, Gustavo Fonseca, Donna Reece, William E Pierceall, Weiyuan Chung, Faiza Zafar, Amit Agarwal, Nizar J Bahlis Dec 2020

Pomalidomide, Dexamethasone, And Daratumumab In Relapsed Refractory Multiple Myeloma After Lenalidomide Treatment., David S Siegel, Gary J Schiller, Christy Samaras, Michael Sebag, Jesus Berdeja, Siddhartha Ganguly, Jeffrey Matous, Kevin Song, Christopher S Seet, Giampaolo Talamo, Mirelis Acosta-Rivera, Michael Bar, Donald Quick, Bertrand Anz, Gustavo Fonseca, Donna Reece, William E Pierceall, Weiyuan Chung, Faiza Zafar, Amit Agarwal, Nizar J Bahlis

Articles, Abstracts, and Reports

Patients with multiple myeloma who have relapsed after or become refractory to lenalidomide in early treatment lines represent a clinically important population in need of effective therapies. The safety and efficacy of pomalidomide, low-dose dexamethasone, and daratumumab was evaluated in lenalidomide-pretreated patients with relapsed or refractory multiple myeloma (RRMM) after one to two prior treatment lines in the phase 2 MM-014 study. Patients received pomalidomide 4 mg daily from days 1-21 and dexamethasone 40 mg weekly (28-day cycles). Daratumumab 16 mg/kg was administered per label. Primary endpoint was overall response rate (ORR); secondary endpoints included progression-free survival (PFS) and safety. …


Positive Information Facilitates Response Inhibition In Older Adults Only When Emotion Is Task-Relevant, Samantha E Williams, Eric J Lenze, Jill D Waring Dec 2020

Positive Information Facilitates Response Inhibition In Older Adults Only When Emotion Is Task-Relevant, Samantha E Williams, Eric J Lenze, Jill D Waring

Open Access Publications

Emotional information is integral to everyday life and impacts a variety of cognitive abilities including response inhibition, a critical skill for maintaining appropriate and flexible behaviour. However, reported effects of emotion on response inhibition are inconsistent in younger adults, and very limited in older adults. Effects of aging are especially relevant because emotion regulation improves with aging despite declining inhibitory control over neutral information. Across three studies, we assessed the impact of emotional facial expressions on response inhibition in younger and older adults while manipulating attention to task stimuli. Emotional faces (versus neutral faces) altered response inhibition only when task …


Integrated Structural And Functional Analysis Of The Protective Effects Of Kinetin Against Oxidative Stress In Mammalian Cellular Systems, Muhammad Naseem, Eman M. Othman, Moustafa Fathy, Jibran Iqbal, Fares M. Howari, Fatima A. Alremeithi, Geema Kodandaraman, Helga Stopper, Elena Bencurova, Dimitrios Vlachakis, Thomas Dandekar Dec 2020

Integrated Structural And Functional Analysis Of The Protective Effects Of Kinetin Against Oxidative Stress In Mammalian Cellular Systems, Muhammad Naseem, Eman M. Othman, Moustafa Fathy, Jibran Iqbal, Fares M. Howari, Fatima A. Alremeithi, Geema Kodandaraman, Helga Stopper, Elena Bencurova, Dimitrios Vlachakis, Thomas Dandekar

All Works

© 2020, The Author(s). Metabolism and signaling of cytokinins was first established in plants, followed by cytokinin discoveries in all kingdoms of life. However, understanding of their role in mammalian cells is still scarce. Kinetin is a cytokinin that mitigates the effects of oxidative stress in mammalian cells. The effective concentrations of exogenously applied kinetin in invoking various cellular responses are not well standardized. Likewise, the metabolism of kinetin and its cellular targets within the mammalian cells are still not well studied. Applying vitality tests as well as comet assays under normal and hyper-oxidative states, our analysis suggests that kinetin …


The Cancer Patient And Cardiology, José Luis Zamorano, Christer Gottfridsson, Riccardo Asteggiano, Dan Atar, Lina Badimon, Jeroen J Bax, Daniela Cardinale, Antonella Cardone, Elizabeth A M Feijen, Péter Ferdinandy, Teresa López-Fernández, Chris P Gale, John H Maduro, Javid Moslehi, Torbjørn Omland, Juan Carlos Plana Gomez, Jessica Scott, Thomas M Suter, Giorgio Minotti Dec 2020

The Cancer Patient And Cardiology, José Luis Zamorano, Christer Gottfridsson, Riccardo Asteggiano, Dan Atar, Lina Badimon, Jeroen J Bax, Daniela Cardinale, Antonella Cardone, Elizabeth A M Feijen, Péter Ferdinandy, Teresa López-Fernández, Chris P Gale, John H Maduro, Javid Moslehi, Torbjørn Omland, Juan Carlos Plana Gomez, Jessica Scott, Thomas M Suter, Giorgio Minotti

Faculty, Staff and Students Publications

Advances in cancer treatments have improved clinical outcomes, leading to an increasing population of cancer survivors. However, this success is associated with high rates of short- and long-term cardiovascular (CV) toxicities. The number and variety of cancer drugs and CV toxicity types make long-term care a complex undertaking. This requires a multidisciplinary approach that includes expertise in oncology, cardiology and other related specialties, and has led to the development of the cardio-oncology subspecialty. This paper aims to provide an overview of the main adverse events, risk assessment and risk mitigation strategies, early diagnosis, medical and complementary strategies for prevention and …


Stat1 Dissociates Adipose Tissue Inflammation From Insulin Sensitivity In Obesity, Aaron R Cox, Natasha Chernis, David A Bader, Pradip K Saha, Peter M Masschelin, Jessica B Felix, Robert Sharp, Zeqin Lian, Vasanta Putluri, Kimal Rajapakshe, Kang Ho Kim, Dennis T Villareal, Reina Armamento-Villareal, Huaizhu Wu, Cristian Coarfa, Nagireddy Putluri, Sean M Hartig Dec 2020

Stat1 Dissociates Adipose Tissue Inflammation From Insulin Sensitivity In Obesity, Aaron R Cox, Natasha Chernis, David A Bader, Pradip K Saha, Peter M Masschelin, Jessica B Felix, Robert Sharp, Zeqin Lian, Vasanta Putluri, Kimal Rajapakshe, Kang Ho Kim, Dennis T Villareal, Reina Armamento-Villareal, Huaizhu Wu, Cristian Coarfa, Nagireddy Putluri, Sean M Hartig

Faculty, Staff and Students Publications

Obesity fosters low-grade inflammation in white adipose tissue (WAT) that may contribute to the insulin resistance that characterizes type 2 diabetes. However, the causal relationship of these events remains unclear. The established dominance of STAT1 function in the immune response suggests an obligate link between inflammation and the comorbidities of obesity. To this end, we sought to determine how STAT1 activity in white adipocytes affects insulin sensitivity. STAT1 expression in WAT inversely correlated with fasting plasma glucose in both obese mice and humans. Metabolomic and gene expression profiling established STAT1 deletion in adipocytes (STAT1a-KO) enhanced mitochondrial function …


Sequence Analysis In Bos Taurus Reveals Pervasiveness Of X-Y Arms Races In Mammalian Lineages, Jennifer F Hughes, Colin Kremitzki, Catrina Fronick, Tina A Graves-Lindsay, Lucinda Fulton, Wesley C Warren, Richard K Wilson, Et Al. Dec 2020

Sequence Analysis In Bos Taurus Reveals Pervasiveness Of X-Y Arms Races In Mammalian Lineages, Jennifer F Hughes, Colin Kremitzki, Catrina Fronick, Tina A Graves-Lindsay, Lucinda Fulton, Wesley C Warren, Richard K Wilson, Et Al.

2020-Current year OA Pubs

Studies of Y Chromosome evolution have focused primarily on gene decay, a consequence of suppression of crossing-over with the X Chromosome. Here, we provide evidence that suppression of X-Y crossing-over unleashed a second dynamic: selfish X-Y arms races that reshaped the sex chromosomes in mammals as different as cattle, mice, and men. Using super-resolution sequencing, we explore the Y Chromosome of


Role Of Metabolism In Bone Development And Homeostasis, Akiko Suzuki, Mina Minamide, Chihiro Iwaya, Kenichi Ogata, Junichi Iwata Nov 2020

Role Of Metabolism In Bone Development And Homeostasis, Akiko Suzuki, Mina Minamide, Chihiro Iwaya, Kenichi Ogata, Junichi Iwata

Faculty, Staff and Student Publications

Carbohydrates, fats, and proteins are the underlying energy sources for animals and are catabolized through specific biochemical cascades involving numerous enzymes. The catabolites and metabolites in these metabolic pathways are crucial for many cellular functions; therefore, an imbalance and/or dysregulation of these pathways causes cellular dysfunction, resulting in various metabolic diseases. Bone, a highly mineralized organ that serves as a skeleton of the body, undergoes continuous active turnover, which is required for the maintenance of healthy bony components through the deposition and resorption of bone matrix and minerals. This highly coordinated event is regulated throughout life by bone cells such …


Differences In Gynecologic Tumor Development In Amhr2-Cre Mice With Krasg12d Or Krasg12v Mutations, Eucharist H S Kun, Yvonne T M Tsang, Sophia Lin, Sophia Pan, Tejas Medapalli, Anais Malpica, Joanne S Richards, David M Gershenson, Kwong-Kwok Wong Nov 2020

Differences In Gynecologic Tumor Development In Amhr2-Cre Mice With Krasg12d Or Krasg12v Mutations, Eucharist H S Kun, Yvonne T M Tsang, Sophia Lin, Sophia Pan, Tejas Medapalli, Anais Malpica, Joanne S Richards, David M Gershenson, Kwong-Kwok Wong

Faculty, Staff and Students Publications

How different KRAS variants impact tumor initiation and progression in vivo has not been thoroughly examined. We hypothesize that the ability of either KRASG12D or KRASG12V mutations to initiate tumor formation is context dependent. Amhr2-Cre mice express Cre recombinase in tissues that develop into the fallopian tubes, uterus, and ovaries. We used these mice to conditionally express either the KRASG12V/+ or KRASG12D/+ mutation. Mice with the genotype Amhr2-Cre Pten(fl/fl) KrasG12D/+(G12D mice) had abnormal follicle structures and developed low-grade serous ovarian carcinomas with 100% penetrance within 18 weeks. In contrast, mice with …


A Review Of Volatile Organic Compound Contamination In Post-Industrial Urban Centers: Reproductive Health Implications Using A Detroit Lens, Carol J. Miller, Melissa Runge-Morris, Andrea E. Cassidy-Bushrow, Jennifer K. Straughen, Timothy M. Dittrich, Tracie R. Baker, Michael C. Petriello, Gil Mor, Douglas M. Ruden, Brendan F. O'Leary, Sadaf Teimoori, Chandra M. Tummala, Samantha Heldman, Manisha Agarwal, Katherine Roth, Zhao Yang, Bridget B. Baker Nov 2020

A Review Of Volatile Organic Compound Contamination In Post-Industrial Urban Centers: Reproductive Health Implications Using A Detroit Lens, Carol J. Miller, Melissa Runge-Morris, Andrea E. Cassidy-Bushrow, Jennifer K. Straughen, Timothy M. Dittrich, Tracie R. Baker, Michael C. Petriello, Gil Mor, Douglas M. Ruden, Brendan F. O'Leary, Sadaf Teimoori, Chandra M. Tummala, Samantha Heldman, Manisha Agarwal, Katherine Roth, Zhao Yang, Bridget B. Baker

Public Health Sciences Articles

Volatile organic compounds (VOCs) are a group of aromatic or chlorinated organic chemicals commonly found in manufactured products that have high vapor pressure, and thus vaporize readily at room temperature. While airshed VOCs are well studied and have provided insights into public health issues, we suggest that belowground VOCs and the related vapor intrusion process could be equally or even more relevant to public health. The persistence, movement, remediation, and human health implications of subsurface VOCs in urban landscapes remain relatively understudied despite evidence of widespread contamination. This review explores the state of the science of subsurface movement and remediation …


Altered Capicua Expression Drives Regional Purkinje Neuron Vulnerability Through Ion Channel Gene Dysregulation In Spinocerebellar Ataxia Type 1, Ravi Chopra, David D Bushart, John P Cooper, Dhananjay Yellajoshyula, Logan M Morrison, Haoran Huang, Hillary P Handler, Luke J Man, Warunee Dansithong, Daniel R Scoles, Stefan M Pulst, Harry T Orr, Vikram G Shakkottai Nov 2020

Altered Capicua Expression Drives Regional Purkinje Neuron Vulnerability Through Ion Channel Gene Dysregulation In Spinocerebellar Ataxia Type 1, Ravi Chopra, David D Bushart, John P Cooper, Dhananjay Yellajoshyula, Logan M Morrison, Haoran Huang, Hillary P Handler, Luke J Man, Warunee Dansithong, Daniel R Scoles, Stefan M Pulst, Harry T Orr, Vikram G Shakkottai

2020-Current year OA Pubs

Selective neuronal vulnerability in neurodegenerative disease is poorly understood. Using the ATXN1[82Q] model of spinocerebellar ataxia type 1 (SCA1), we explored the hypothesis that regional differences in Purkinje neuron degeneration could provide novel insights into selective vulnerability. ATXN1[82Q] Purkinje neurons from the anterior cerebellum were found to degenerate earlier than those from the nodular zone, and this early degeneration was associated with selective dysregulation of ion channel transcripts and altered Purkinje neuron spiking. Efforts to understand the basis for selective dysregulation of channel transcripts revealed modestly increased expression of the ATXN1 co-repressor Capicua (Cic) in anterior cerebellar Purkinje neurons. Importantly, …


Central Nervous System Pathology In Preclinical Mps Iiib Dogs Reveals Progressive Changes In Clinically Relevant Brain Regions, Martin T Egeland, Marta M Tarczyluk-Wells, Melissa M Asmar, Evan G Adintori, Roger Lawrence, Elizabeth M Snella, Jackie K Jens, Brett E Crawford, Jill C M Wait, Emma Mccullagh, Jason Pinkstaff, Jonathan D Cooper, N Matthew Ellinwood Nov 2020

Central Nervous System Pathology In Preclinical Mps Iiib Dogs Reveals Progressive Changes In Clinically Relevant Brain Regions, Martin T Egeland, Marta M Tarczyluk-Wells, Melissa M Asmar, Evan G Adintori, Roger Lawrence, Elizabeth M Snella, Jackie K Jens, Brett E Crawford, Jill C M Wait, Emma Mccullagh, Jason Pinkstaff, Jonathan D Cooper, N Matthew Ellinwood

2020-Current year OA Pubs

Mucopolysaccharidosis type IIIB (MPS IIIB; Sanfilippo syndrome B) is an autosomal recessive lysosomal storage disorder caused by the deficiency of alpha-N-acetylglucosaminidase activity, leading to increased levels of nondegraded heparan sulfate (HS). A mouse model has been useful to evaluate novel treatments for MPS IIIB, but has limitations. In this study, we evaluated the naturally occurring canine model of MPS IIIB for the onset and progression of biochemical and neuropathological changes during the preclinical stages (onset approximately 24-30 months of age) of canine MPS IIIB disease. Even by 1 month of age, MPS IIIB dogs had elevated HS levels in brain …


Role For Carbohydrate Response Element-Binding Protein (Chrebp) In High Glucose-Mediated Repression Of Long Noncoding Rna Tug1, Jianyin Long, Daniel L Galvan, Koki Mise, Yashpal S Kanwar, Li Li, Naravat Poungavrin, Paul A Overbeek, Benny H Chang, Farhad R Danesh Nov 2020

Role For Carbohydrate Response Element-Binding Protein (Chrebp) In High Glucose-Mediated Repression Of Long Noncoding Rna Tug1, Jianyin Long, Daniel L Galvan, Koki Mise, Yashpal S Kanwar, Li Li, Naravat Poungavrin, Paul A Overbeek, Benny H Chang, Farhad R Danesh

Faculty, Staff and Students Publications

Long noncoding RNAs (lncRNAs) have been shown to play key roles in a variety of biological activities of the cell. However, less is known about how lncRNAs respond to environmental cues and what transcriptional mechanisms regulate their expression. Studies from our laboratory have shown that the lncRNA Tug1 (taurine upregulated gene 1) is crucial for the progression of diabetic kidney disease, a major microvascular complication of diabetes. Using a combination of proximity labeling with the engineered soybean ascorbate peroxidase (APEX2), ChIP-qPCR, biotin-labeled oligonucleotide pulldown, and classical promoter luciferase assays in kidney podocytes, we extend our initial observations in the current …


Social And Leisure Activities Predict Transitions In Cognitive Functioning In Older Mexican Adults: A Latent Transition Analysis Of The Mexican Health And Aging Study, Heather Mary Brown, Stephen A Murray, Hope Northrup, Kit Sing Au, Lee A Niswander Nov 2020

Social And Leisure Activities Predict Transitions In Cognitive Functioning In Older Mexican Adults: A Latent Transition Analysis Of The Mexican Health And Aging Study, Heather Mary Brown, Stephen A Murray, Hope Northrup, Kit Sing Au, Lee A Niswander

Faculty, Staff and Student Publications

Disruptions in neural tube (NT) closure result in neural tube defects (NTDs). To understand the molecular processes required for mammalian NT closure, we investigated the role of Snx3, a sorting nexin gene. Snx3−/− mutant mouse embryos display a fully-penetrant cranial NTD. In vivo, we observed decreased canonical WNT target gene expression in the cranial neural epithelium of the Snx3−/− embryos and a defect in convergent extension of the neural epithelium. Snx3−/− cells show decreased WNT secretion, and live cell imaging reveals aberrant recycling of the WNT ligand-binding protein WLS and mis-trafficking to the lysosome for degradation. The importance …


Conduct Of Clinical Trials In The Era Of Covid-19: Jacc Scientific Expert Panel., Mitchell A. Psotka, William T. Abraham, Mona Fiuzat, Gerasimos Filippatos, Joann Lindenfeld, Tariq Ahmad, Ankeet S. Bhatt, Peter E. Carson, John G.F. Cleland, G. Michael Felker, James L. Januzzi, Dalane W. Kitzman, Eric S. Leifer, Eldrin F. Lewis, John J.V. Mcmurray, Robert J. Mentz, Scott D. Solomon, Norman Stockbridge, John R. Teerlink, Muthiah Vaduganathan, Orly Vardeny, David J. Whellan, Janet Wittes, Stefan D. Anker, Christopher M. O'Connor Nov 2020

Conduct Of Clinical Trials In The Era Of Covid-19: Jacc Scientific Expert Panel., Mitchell A. Psotka, William T. Abraham, Mona Fiuzat, Gerasimos Filippatos, Joann Lindenfeld, Tariq Ahmad, Ankeet S. Bhatt, Peter E. Carson, John G.F. Cleland, G. Michael Felker, James L. Januzzi, Dalane W. Kitzman, Eric S. Leifer, Eldrin F. Lewis, John J.V. Mcmurray, Robert J. Mentz, Scott D. Solomon, Norman Stockbridge, John R. Teerlink, Muthiah Vaduganathan, Orly Vardeny, David J. Whellan, Janet Wittes, Stefan D. Anker, Christopher M. O'Connor

Department of Medicine Faculty Papers

The coronavirus disease-2019 (COVID-19) pandemic has profoundly changed clinical care and research, including the conduct of clinical trials, and the clinical research ecosystem will need to adapt to this transformed environment. The Heart Failure Academic Research Consortium is a partnership between the Heart Failure Collaboratory and the Academic Research Consortium, composed of academic investigators from the United States and Europe, patients, the U.S. Food and Drug Administration, the National Institutes of Health, and industry members. A series of meetings were convened to address the challenges caused by the COVID-19 pandemic, review options for maintaining or altering best practices, and establish …


Ryanodine Receptor 1-Related Disorders: An Historical Perspective And Proposal For A Unified Nomenclature, Tokunbor A Lawal, Joshua J Todd, Jessica W Witherspoon, Carsten G Bönnemann, James J Dowling, Susan L Hamilton, Katherine G Meilleur, Robert T Dirksen Nov 2020

Ryanodine Receptor 1-Related Disorders: An Historical Perspective And Proposal For A Unified Nomenclature, Tokunbor A Lawal, Joshua J Todd, Jessica W Witherspoon, Carsten G Bönnemann, James J Dowling, Susan L Hamilton, Katherine G Meilleur, Robert T Dirksen

Faculty, Staff and Students Publications

The RYR1 gene, which encodes the sarcoplasmic reticulum calcium release channel or type 1 ryanodine receptor (RyR1) of skeletal muscle, was sequenced in 1988 and RYR1 variations that impair calcium homeostasis and increase susceptibility to malignant hyperthermia were first identified in 1991. Since then, RYR1-related myopathies (RYR1-RM) have been described as rare, histopathologically and clinically heterogeneous, and slowly progressive neuromuscular disorders. RYR1 variants can lead to dysfunctional RyR1-mediated calcium release, malignant hyperthermia susceptibility, elevated oxidative stress, deleterious post-translational modifications, and decreased RyR1 expression. RYR1-RM-affected individuals can present with delayed motor milestones, contractures, scoliosis, ophthalmoplegia, and respiratory insufficiency.Historically, RYR1-RM-affected individuals were …


Evolution Of Brain-Wide Activity In The Awake Behaving Mouse After Acute Fear By Longitudinal Manganese-Enhanced Mri, Taylor W. Uselman, Daniel R. Barto, Russell E. Jacobs, Elaine L. Bearer Nov 2020

Evolution Of Brain-Wide Activity In The Awake Behaving Mouse After Acute Fear By Longitudinal Manganese-Enhanced Mri, Taylor W. Uselman, Daniel R. Barto, Russell E. Jacobs, Elaine L. Bearer

Pathology Research and Scholarship

Life threatening fear after a single exposure evolves in a subset of vulnerable individuals to anxiety, which may persist for their lifetime. Yet neither the whole brain's response to innate acute fear nor how brain activity evolves over time is known. Sustained neuronal activity may be a factor in the development of a persistent fear response. We couple two experimental protocols to provoke acute fear leading to prolonged fear: Predator stress (PS), a naturalistic approach to induce fear in rodents; and Serotonin transporter knockout mouse (SERT-KO) that responds to PS with sustained defensive behavior. Behavior was monitored before, during and …


A Praziquantel Treatment Study Of Immune And Transcriptome Profiles In Schistosoma Haematobium-Infected Gabonese Schoolchildren, Lucja A Labuda, Ayola A Adegnika, Bruce A Rosa, John Martin, Ulysse Ateba-Ngoa, Abena Serwaa Amoah, Honorine Mbenkep Lima, Lynn Meurs, Moustapha Mbow, Mikhael D Manurung, Jeannot F Zinsou, Hermelijn H Smits, Peter G Kremsner, Makedonka Mitreva, Maria Yazdanbakhsh Nov 2020

A Praziquantel Treatment Study Of Immune And Transcriptome Profiles In Schistosoma Haematobium-Infected Gabonese Schoolchildren, Lucja A Labuda, Ayola A Adegnika, Bruce A Rosa, John Martin, Ulysse Ateba-Ngoa, Abena Serwaa Amoah, Honorine Mbenkep Lima, Lynn Meurs, Moustapha Mbow, Mikhael D Manurung, Jeannot F Zinsou, Hermelijn H Smits, Peter G Kremsner, Makedonka Mitreva, Maria Yazdanbakhsh

2020-Current year OA Pubs

BACKGROUND: Although Schistosoma haematobium infection has been reported to be associated with alterations in immune function, in particular immune hyporesponsiveness, there have been only few studies that have used the approach of removing infection by drug treatment to establish this and to understand the underlying molecular mechanisms.

METHODS: Schistosoma haematobium-infected schoolchildren were studied before and after praziquantel treatment and compared with uninfected controls. Cellular responses were characterized by cytokine production and flow cytometry, and in a subset of children RNA sequencing (RNA-Seq) transcriptome profiling was performed.

RESULTS: Removal of S haematobium infection resulted in increased schistosome-specific cytokine responses that were …


Structural Basis Of Ion Transport And Inhibition In Ferroportin, Yaping Pan, Zhenning Ren, Shuai Gao, Jiemin Shen, Lie Wang, Zhichun Xu, Ye Yu, Preetham Bachina, Hanzhi Zhang, Xiao Fan, Arthur Laganowsky, Nieng Yan, Ming Zhou Nov 2020

Structural Basis Of Ion Transport And Inhibition In Ferroportin, Yaping Pan, Zhenning Ren, Shuai Gao, Jiemin Shen, Lie Wang, Zhichun Xu, Ye Yu, Preetham Bachina, Hanzhi Zhang, Xiao Fan, Arthur Laganowsky, Nieng Yan, Ming Zhou

Faculty, Staff and Students Publications

Ferroportin is an iron exporter essential for releasing cellular iron into circulation. Ferroportin is inhibited by a peptide hormone, hepcidin. In humans, mutations in ferroportin lead to ferroportin diseases that are often associated with accumulation of iron in macrophages and symptoms of iron deficiency anemia. Here we present the structures of the ferroportin from the primate Philippine tarsier (TsFpn) in the presence and absence of hepcidin solved by cryo-electron microscopy. TsFpn is composed of two domains resembling a clamshell and the structure defines two metal ion binding sites, one in each domain. Both structures are in an outward-facing conformation, and …


Antimicrobial Resistance In Enteric Bacteria: Current State And Next-Generation Solutions, M J Wallace, S R S Fishbein, G Dantas Nov 2020

Antimicrobial Resistance In Enteric Bacteria: Current State And Next-Generation Solutions, M J Wallace, S R S Fishbein, G Dantas

2020-Current year OA Pubs

Antimicrobial resistance is one of the largest threats to global health and imposes substantial burdens in terms of morbidity, mortality, and economic costs. The gut is a key conduit for the genesis and spread of antimicrobial resistance in enteric bacterial pathogens. Distinct bacterial species that cause enteric disease can exist as invasive enteropathogens that immediately evoke gastrointestinal distress, or pathobionts that can arise from established bacterial commensals to inflict dysbiosis and disease. Furthermore, various environmental reservoirs and stressors facilitate the evolution and transmission of resistance. In this review, we present a comprehensive discussion on circulating resistance profiles and gene mobilization …


Phosphodiesterase 5 (Pde5) Restricts Intracellular Cgmp Accumulation During Enterotoxigenic Escherichia Coli Infection, Jennifer Foulke-Abel, Huimin Yu, Laxmi Sunuwar, Ruxian Lin, James M Fleckenstein, James B Kaper, Mark Donowitz Nov 2020

Phosphodiesterase 5 (Pde5) Restricts Intracellular Cgmp Accumulation During Enterotoxigenic Escherichia Coli Infection, Jennifer Foulke-Abel, Huimin Yu, Laxmi Sunuwar, Ruxian Lin, James M Fleckenstein, James B Kaper, Mark Donowitz

2020-Current year OA Pubs

Diarrhea caused by enterotoxigenic


Zmat3 Is A Key Splicing Regulator In The P53 Tumor Suppression Program, Kathryn T Bieging-Rolett, Alyssa M Kaiser, David W Morgens, Anthony M Boutelle, Jose A Seoane, Eric L Van Nostrand, Changyu Zhu, Shauna L Houlihan, Stephano S Mello, Brian A Yee, Jacob Mcclendon, Sarah E Pierce, Ian P Winters, Mengxiong Wang, Andrew J Connolly, Scott W Lowe, Christina Curtis, Gene W Yeo, Monte M Winslow, Michael C Bassik, Laura D Attardi Nov 2020

Zmat3 Is A Key Splicing Regulator In The P53 Tumor Suppression Program, Kathryn T Bieging-Rolett, Alyssa M Kaiser, David W Morgens, Anthony M Boutelle, Jose A Seoane, Eric L Van Nostrand, Changyu Zhu, Shauna L Houlihan, Stephano S Mello, Brian A Yee, Jacob Mcclendon, Sarah E Pierce, Ian P Winters, Mengxiong Wang, Andrew J Connolly, Scott W Lowe, Christina Curtis, Gene W Yeo, Monte M Winslow, Michael C Bassik, Laura D Attardi

Faculty, Staff and Students Publications

Although TP53 is the most commonly mutated gene in human cancers, the p53-dependent transcriptional programs mediating tumor suppression remain incompletely understood. Here, to uncover critical components downstream of p53 in tumor suppression, we perform unbiased RNAi and CRISPR-Cas9-based genetic screens in vivo. These screens converge upon the p53-inducible gene Zmat3, encoding an RNA-binding protein, and we demonstrate that ZMAT3 is an important tumor suppressor downstream of p53 in mouse Kras


Hsv-1 And Zika Virus But Not Sars-Cov-2 Replicate In The Human Cornea And Are Restricted By Corneal Type Iii Interferon, Jonathan J Miner, Derek J Platt, Cyrus M Ghaznavi, Pallavi Chandra, Andrea Santeford, Amber M Menos, Zhenyu Dong, Erin R Wang, Wei Qian, Elysse S Karozichian, Jennifer A Philips, Rajendra S Apte Nov 2020

Hsv-1 And Zika Virus But Not Sars-Cov-2 Replicate In The Human Cornea And Are Restricted By Corneal Type Iii Interferon, Jonathan J Miner, Derek J Platt, Cyrus M Ghaznavi, Pallavi Chandra, Andrea Santeford, Amber M Menos, Zhenyu Dong, Erin R Wang, Wei Qian, Elysse S Karozichian, Jennifer A Philips, Rajendra S Apte

Open Access Publications

Here, we report our studies of immune-mediated regulation of Zika virus (ZIKV), herpes simplex virus 1 (HSV-1), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in the human cornea. We find that ZIKV can be transmitted via corneal transplantation in mice. However, in human corneal explants, we report that ZIKV does not replicate efficiently and that SARS-CoV-2 does not replicate at all. Additionally, we demonstrate that type III interferon (IFN-λ) and its receptor (IFNλR1) are expressed in the corneal epithelium. Treatment of human corneal explants with IFN-λ, and treatment of mice with IFN-λ eye drops, upregulates antiviral interferon-stimulated genes. …


Maternal Hookworm Infection And Its Effects On Maternal Health: A Systematic Review And Meta-Analysis, Tara E Ness, Vedika Agrawal, Kathryn Bedard, Lara Ouellette, Timothy A Erickson, Peter Hotez, Jill E Weatherhead Nov 2020

Maternal Hookworm Infection And Its Effects On Maternal Health: A Systematic Review And Meta-Analysis, Tara E Ness, Vedika Agrawal, Kathryn Bedard, Lara Ouellette, Timothy A Erickson, Peter Hotez, Jill E Weatherhead

Library Staff Publications

Hookworm is an intestinal parasite that infects nearly 230 million people, with another 5.1 billion at risk, especially in poverty-stricken tropical and subtropical regions. Pregnancy is an especially vulnerable time for hookworm infection because of its effect on both maternal and subsequently fetal health. A systematic review and meta-analysis was conducted. The meta-analysis was performed on the association between maternal hookworm and maternal anemia, as well as maternal hookworm coinfection with malaria. The prevalence of hookworm ranged from 1% to 78% in pregnant women, whereas malaria prevalence ranged from 11% to 81%. Pregnant women with hookworm infection were more likely …


Fetal And Early Postnatal Lead Exposure Measured In Teeth Associates With Infant Gut Microbiota, Alexandra R. Sitarik, Manish Arora, Christine Austin, Lawrence F. Bielak, Shoshannah Eggers, Christine C. Johnson, Susan V Lynch, Sung Kyun Park, Kuan-Han H. Wu, Germaine Jm Yong, Andrea E. Cassidy-Bushrow Nov 2020

Fetal And Early Postnatal Lead Exposure Measured In Teeth Associates With Infant Gut Microbiota, Alexandra R. Sitarik, Manish Arora, Christine Austin, Lawrence F. Bielak, Shoshannah Eggers, Christine C. Johnson, Susan V Lynch, Sung Kyun Park, Kuan-Han H. Wu, Germaine Jm Yong, Andrea E. Cassidy-Bushrow

Public Health Sciences Articles

BACKGROUND: Lead (Pb) is an environmentally ubiquitous heavy metal associated with a wide range of adverse health effects in children. Both lead exposure and the early life microbiome- which plays a critical role in human development-have been linked to similar health outcomes, but it is unclear if the adverse effects of lead are partially driven by early life gut microbiota dysbiosis. The objective of this study was to examine the association between in utero and postnatal lead levels (measured in deciduous baby teeth) and early life bacterial and fungal gut microbiota in the first year of life.

METHODS: Data from …


Therapeutic Plasma Exchange And Intravenous Immune Globulin In The Treatment Of Heparin-Induced Thrombocytopenia: A Systematic Review, Chinonso Onuoha, Karen D. Barton, Edward C C Wong, Jay S. Raval, Marian A. Rollins-Raval, Tina A. Ipe, Joseph E. Kiss, Leonard I. Boral, Jill Adamksi, Nicole D. Zantek, Oluwatoyosi A. Onwuemene Nov 2020

Therapeutic Plasma Exchange And Intravenous Immune Globulin In The Treatment Of Heparin-Induced Thrombocytopenia: A Systematic Review, Chinonso Onuoha, Karen D. Barton, Edward C C Wong, Jay S. Raval, Marian A. Rollins-Raval, Tina A. Ipe, Joseph E. Kiss, Leonard I. Boral, Jill Adamksi, Nicole D. Zantek, Oluwatoyosi A. Onwuemene

Pathology Research and Scholarship

BACKGROUND: Immunomodulatory strategies in heparin-induced thrombocytopenia (HIT) include the use of intravenous immune globulin (IVIG) and therapeutic plasma exchange (TPE). The optimal application of these therapies is unknown and outcomes data are limited. We investigated treatment categories and laboratory and clinical outcomes of IVIG and/or TPE in HIT with a systematic literature review.

STUDY DESIGN AND METHODS: We searched MEDLINE, Embase, and Web of Science through December 2019 for studies combining controlled vocabulary and keywords related to thrombocytopenia, heparin, TPE, and IVIG. The primary outcome was treatment indication. Secondary outcomes were platelet recovery, HIT laboratory parameters, heparin re-exposure, and post-treatment …


Maternal Hookworm Infection And Its Effects On Maternal Health: A Systematic Review And Meta-Analysis, Tara E Ness, Vedika Agrawal, Kathryn Bedard, Lara Ouellette, Timothy A Erickson, Peter Hotez, Jill E Weatherhead Nov 2020

Maternal Hookworm Infection And Its Effects On Maternal Health: A Systematic Review And Meta-Analysis, Tara E Ness, Vedika Agrawal, Kathryn Bedard, Lara Ouellette, Timothy A Erickson, Peter Hotez, Jill E Weatherhead

Library Staff Publications

Hookworm is an intestinal parasite that infects nearly 230 million people, with another 5.1 billion at risk, especially in poverty-stricken tropical and subtropical regions. Pregnancy is an especially vulnerable time for hookworm infection because of its effect on both maternal and subsequently fetal health. A systematic review and meta-analysis was conducted. The meta-analysis was performed on the association between maternal hookworm and maternal anemia, as well as maternal hookworm coinfection with malaria. The prevalence of hookworm ranged from 1% to 78% in pregnant women, whereas malaria prevalence ranged from 11% to 81%. Pregnant women with hookworm infection were more likely …


Characterization Of Glycan Determinants That Mediate Recognition Of The Major Wuchereria Bancrofti Circulating Antigen By Diagnostic Antibodies, Marla I Hertz, Amy Rush, Thomas B Nutman, Gary J Weil, Sasisekhar Bennuru, Philip J Budge Nov 2020

Characterization Of Glycan Determinants That Mediate Recognition Of The Major Wuchereria Bancrofti Circulating Antigen By Diagnostic Antibodies, Marla I Hertz, Amy Rush, Thomas B Nutman, Gary J Weil, Sasisekhar Bennuru, Philip J Budge

2020-Current year OA Pubs

The Global Program to Eliminate Lymphatic Filariasis (GPELF) relies heavily on a rapid diagnostic test (RDT) to a Wuchereria bancrofti circulating filarial antigen (Wb-CFA) to identify endemic areas and for determining when mass drug administration can stop. The antigen contains a carbohydrate epitope that is recognized by monoclonal antibody AD12. Og4C3, a monoclonal antibody that is used in a commercial ELISA for Wb-CFA recognizes the same moiety. Despite its diagnostic importance, little is known about the structure and function of this "AD12 epitope". It is also present on other W. bancrofti glycoproteins and on glycoproteins of other filarial worms, but …


Efficacy Of Alemtuzumab Over 6 Years In Relapsing-Remitting Multiple Sclerosis Patients Who Relapsed Between Courses 1 And 2: Post Hoc Analysis Of The Care-Ms Studies., Bart Van Wijmeersch, Barry A Singer, Aaron Boster, Simon Broadley, Óscar Fernández, Mark S Freedman, Guillermo Izquierdo, Jan Lycke, Carlo Pozzilli, Basil Sharrack, Brian Steingo, Heinz Wiendl, Sibyl Wray, Tjalf Ziemssen, Luke Chung, David H Margolin, Karthinathan Thangavelu, Patrick Vermersch Nov 2020

Efficacy Of Alemtuzumab Over 6 Years In Relapsing-Remitting Multiple Sclerosis Patients Who Relapsed Between Courses 1 And 2: Post Hoc Analysis Of The Care-Ms Studies., Bart Van Wijmeersch, Barry A Singer, Aaron Boster, Simon Broadley, Óscar Fernández, Mark S Freedman, Guillermo Izquierdo, Jan Lycke, Carlo Pozzilli, Basil Sharrack, Brian Steingo, Heinz Wiendl, Sibyl Wray, Tjalf Ziemssen, Luke Chung, David H Margolin, Karthinathan Thangavelu, Patrick Vermersch

Neuroscience Articles

BACKGROUND: Alemtuzumab is administered as two annual courses for relapsing-remitting multiple sclerosis (MS). Patients may relapse before completing the two-course regimen.

OBJECTIVE: The objective was to evaluate 6-year outcomes in patients who relapsed between alemtuzumab Courses 1 and 2 (early relapsers).

METHODS: Post hoc analysis of patients from the Comparison of Alemtuzumab and Rebif

RESULTS: Early relapsers (CARE-MS I: 15%; CARE-MS II: 24%) had more relapses in 1-2 years pre-alemtuzumab and higher mean baseline Expanded Disability Status Scale score than patients without relapse. Their annualized relapse rate declined from Year 1 (CARE-MS I: 1.3; CARE-MS II: 1.2) to Year 2 …


Beyond Just A Tight Fortress: Contribution Of Stroma To Epithelial-Mesenchymal Transition In Pancreatic Cancer, Ashenafi Bulle, Kian-Huat Lim Oct 2020

Beyond Just A Tight Fortress: Contribution Of Stroma To Epithelial-Mesenchymal Transition In Pancreatic Cancer, Ashenafi Bulle, Kian-Huat Lim

Open Access Publications

Novel effective treatment is direly needed for patients with pancreatic ductal adenocarcinoma (PDAC). Therapeutics that target the driver mutations, especially the KRAS oncoprotein and its effector cascades, have been ineffective. It is increasing clear that the extensive fibro-inflammatory stroma (or desmoplasia) of PDAC plays an active role in the progression and therapeutic resistance of PDAC. The desmoplastic stroma is composed of dense extracellular matrix (ECM) deposited mainly by the cancer-associated-fibroblasts (CAFs) and infiltrated with various types of immune cells. The dense ECM functions as a physical barrier that limits tumor vasculatures and distribution of therapeutics to PDAC cells. In addition, …