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Trypanosoma Brucei Prmt1 Is A Nucleic Acid Binding Protein With A Role In Energy Metabolism And The Starvation Stress Response., Lucie Kafková, Chengjian Tu, Kyle L. Pazzo, Kyle P. Smith, Erik W. Debler, Kimberly S. Paul, Jun Qu, Laurie K. Read 2018 University at Buffalo, State University of New York

Trypanosoma Brucei Prmt1 Is A Nucleic Acid Binding Protein With A Role In Energy Metabolism And The Starvation Stress Response., Lucie Kafková, Chengjian Tu, Kyle L. Pazzo, Kyle P. Smith, Erik W. Debler, Kimberly S. Paul, Jun Qu, Laurie K. Read

Department of Biochemistry and Molecular Biology Faculty Papers

In Trypanosoma brucei and related kinetoplastid parasites, transcription of protein coding genes is largely unregulated. Rather, mRNA binding proteins, which impact processes such as transcript stability and translation efficiency, are the predominant regulators of gene expression. Arginine methylation is a posttranslational modification that preferentially targets RNA binding proteins and is, therefore, likely to have a substantial impact on T. brucei biology. The data presented here demonstrate that cells depleted of T. brucei PRMT1 (TbPRMT1), a major type I protein arginine methyltransferase, exhibit decreased virulence in an animal model. To understand the basis of this phenotype, quantitative global proteomics was employed ...


Highly Efficient 5' Capping Of Mitochondrial Rna With Nad+ And Nadh By Yeast And Human Mitochondrial Rna Polymerase, Jeremy G Bird, Urmimala Basu, David Kuster, Aparna Ramachandran, Ewa Grudzien-Nogalska, Atif Towheed, Douglas C. Wallace, Megerditch Kiledjian, Dmitry Temiakov, Smita S. Patel, Richard H. Ebright, Bryce E. Nickels 2018 Rutgers University

Highly Efficient 5' Capping Of Mitochondrial Rna With Nad+ And Nadh By Yeast And Human Mitochondrial Rna Polymerase, Jeremy G Bird, Urmimala Basu, David Kuster, Aparna Ramachandran, Ewa Grudzien-Nogalska, Atif Towheed, Douglas C. Wallace, Megerditch Kiledjian, Dmitry Temiakov, Smita S. Patel, Richard H. Ebright, Bryce E. Nickels

Department of Biochemistry and Molecular Biology Faculty Papers

Bacterial and eukaryotic nuclear RNA polymerases (RNAPs) cap RNA with the oxidized and reduced forms of the metabolic effector nicotinamide adenine dinucleotide, NAD+ and NADH, using NAD+ and NADH as non-canonical initiating nucleotides for transcription initiation. Here, we show that mitochondrial RNAPs (mtRNAPs) cap RNA with NAD+ and NADH, and do so more efficiently than nuclear RNAPs. Direct quantitation of NAD+- and NADH-capped RNA demonstrates remarkably high levels of capping in vivo: up to ~60% NAD+ and NADH capping of yeast mitochondrial transcripts, and up to ~15% NAD+ capping of human mitochondrial transcripts. The capping efficiency is determined by promoter ...


Dna Methylation-Based Age Prediction And Telomere Length In White Blood Cells And Cumulus Cells Of Infertile Women With Normal Or Poor Response To Ovarian Stimulation., Scott J. Morin, Xin Tao, Diego Marin, Yiping Zhan, Jessica Landis, Jenna Bedard, Richard T. Scott, Emre Seli 2018 IVIRMA New Jersey; Thomas Jefferson University

Dna Methylation-Based Age Prediction And Telomere Length In White Blood Cells And Cumulus Cells Of Infertile Women With Normal Or Poor Response To Ovarian Stimulation., Scott J. Morin, Xin Tao, Diego Marin, Yiping Zhan, Jessica Landis, Jenna Bedard, Richard T. Scott, Emre Seli

Department of Biochemistry and Molecular Biology Faculty Papers

An algorithm assessing the methylation levels of 353 informative CpG sites in the human genome permits accurate prediction of the chronologic age of a subject. Interestingly, when there is discrepancy between the predicted age and chronologic age (age acceleration or "AgeAccel"), patients are at risk for morbidity and mortality. Identification of infertile patients at risk for accelerated reproductive senescence may permit preventative action. This study aimed to assess the accuracy of the "epigenetic clock" concept in reproductive age women undergoing fertility treatment by applying the age prediction algorithm in peripheral (white blood cells [WBCs]) and follicular somatic cells (cumulus cells ...


Nox1-Evoked Ros Causes Fibrosis In Caerulein-Induced Chronic Pancreatitis Through The P38/Akt Pathway, Ananya Chakraborty 2018 Augusta University

Nox1-Evoked Ros Causes Fibrosis In Caerulein-Induced Chronic Pancreatitis Through The P38/Akt Pathway, Ananya Chakraborty

Georgia Undergraduate Research Conference (GURC)

Inflammation of the pancreas can occur in two distinct forms, either in the acute form (AP) or the chronic form (CP). AP is a short-term inflammation that develops suddenly. By contrast, CP manifests from a long-term inflammation, which results in significant fibrosis of the pancreatic tissue and permanent organ damage. This is because of pro-inflammatory mediators, including reactive oxygen species (ROS). One of the sources of ROS is NADPH oxidase (Nox) enzymes, which transfer electrons across biological membranes to reduce oxygen to superoxide. The rodent genome encodes four Nox enzymes: Nox1-4. We found that Nox1 is implicated in pancreatic fibrogenesis ...


21 - Cigarette Smoke Exposure Upregulation Of Pge₂ Expression In The Bladder, Jessica Nix 2018 University of North Georgia

21 - Cigarette Smoke Exposure Upregulation Of Pge₂ Expression In The Bladder, Jessica Nix

Georgia Undergraduate Research Conference (GURC)

CIGARETTE SMOKE EXPOSURE UPREGULATION OF PGE₂ EXPRESSION IN THE BLADDER

Jessica Nix, Jane McHowat, Shannon Kispert

Cigarette smoking remains the leading cause of preventable death and disease in the United States. Despite known risks, 42.1 million Americans continue to smoke, making research into tobacco-related pathologies relevant and necessary. We previously discovered that cigarette smoke exposure leads to tumor progression in the breast via platelet activating factor (PAF) and other phospholipase A₂ (PLA₂) metabolic pathways. These results led us to examine the PLA2 metabolite, prostaglandin E₂ (PGE₂). We observed the expression of PGE₂ in mouse bladder and human heart ...


Vancomycin Delays Clindamycin-Induced Fatality In The Hamster Model Of Clostridioides [Clostridium] Difficile Infection, Amelia E. Fox-King, Chrisabelle Mefferd, Jacqueline R. Phan, Nancy O. Nou, Ernesto Abel-Santos, Brian P. Hedlund 2018 University of Nevada, Las Vegas

Vancomycin Delays Clindamycin-Induced Fatality In The Hamster Model Of Clostridioides [Clostridium] Difficile Infection, Amelia E. Fox-King, Chrisabelle Mefferd, Jacqueline R. Phan, Nancy O. Nou, Ernesto Abel-Santos, Brian P. Hedlund

LSAMP Poster Presentations

Antibiotics can leave the host gut microbiome susceptible to Clostridioides [Clostridium] difficile colonization and lethal toxin production. For instance, clindamycin-induced susceptibility to C. difficile infection (CDI) results in rapid fatality in hamster models, yet vancomycin has been shown to offer increased survival in hamsters challenged with C. difficile. We aim to develop an antibiotic treatment that will facilitate CDI susceptibility without prompt fatality in hamster models. An antibiotic regimen starting with a continuous vancomycin treatment along with a single clindamycin dosage is thought to reduce the major disruption in the indigenous gut microbiome and prevent clindamycin-induced death. Quantitative polymerase chain ...


Correcting Glucose-6-Phosphate Dehydrogenase Deficiency With A Small-Molecule Activator, Sunhee Hwang, Karen Mruk, Simin Rahighi, Andrew G. Raub, Che-Hong Chen, Lisa E. Dorn, Naoki Horikoshi, Soichi Wakatsuki, James K. Chen, Daria Mochly-Rosen 2018 Stanford University

Correcting Glucose-6-Phosphate Dehydrogenase Deficiency With A Small-Molecule Activator, Sunhee Hwang, Karen Mruk, Simin Rahighi, Andrew G. Raub, Che-Hong Chen, Lisa E. Dorn, Naoki Horikoshi, Soichi Wakatsuki, James K. Chen, Daria Mochly-Rosen

Pharmacy Faculty Articles and Research

Glucose-6-phosphate dehydrogenase (G6PD) deficiency, one of the most common human genetic enzymopathies, is caused by over 160 different point mutations and contributes to the severity of many acute and chronic diseases associated with oxidative stress, including hemolytic anemia and bilirubin-induced neurological damage particularly in newborns. As no medications are available to treat G6PD deficiency, here we seek to identify a small molecule that corrects it. Crystallographic study and mutagenesis analysis identify the structural and functional defect of one common mutant (Canton, R459L). Using high-throughput screening, we subsequently identify AG1, a small molecule that increases the activity of the wild-type, the ...


The Anti-Cancer Effect Of Retinoic Acid Signaling In Crc Occurs Via Decreased Growth Of Aldh+ Colon Cancer Stem Cells And Increased Differentiation Of Stem Cells, Shirin R. Modarai, Anindita Gupta, Lynn M. Opdenaker, Ryan Kowash, Gabriel Masters, Vignesh Viswanathan, Tao Zhang, Jeremy Z. Fields, Bruce M. Boman 2018 University of Delaware; Christiana Care Health System

The Anti-Cancer Effect Of Retinoic Acid Signaling In Crc Occurs Via Decreased Growth Of Aldh+ Colon Cancer Stem Cells And Increased Differentiation Of Stem Cells, Shirin R. Modarai, Anindita Gupta, Lynn M. Opdenaker, Ryan Kowash, Gabriel Masters, Vignesh Viswanathan, Tao Zhang, Jeremy Z. Fields, Bruce M. Boman

Department of Pharmacology and Experimental Therapeutics Faculty Papers

Background: Tumorigenesis is driven by stem cell (SC) overpopulation. BecauseALDH is both a marker for SCs in many tissues and a key enzyme in retinoid acid (RA)signaling, we studied RA signaling in normal and malignant colonic SCs.Hypothesis: RA signaling regulates growth and differentiation of ALDH+ colonicSCs dysregulation of RA signaling contributes to SC overpopulation and colorectalcancer (CRC) development.Methods: We analyzed normal and malignant colonic tissues and CRC cell linesto see if retinoid receptors (RXR &RAR) are exclusively expressed in ALDH+ SCs,and if RA signaling changes during CRC development. We determined whether RAsignaling regulates cancer SC (CSC ...


Oxcarbazepine Overdose In A Polysubstance Related Suicide, Melissa Beals, Robert J. Krumsick, C. Clinton Frazee III, Lindsey J. Haldiman, Uttam Garg 2018 Children's Mercy Hospital

Oxcarbazepine Overdose In A Polysubstance Related Suicide, Melissa Beals, Robert J. Krumsick, C. Clinton Frazee Iii, Lindsey J. Haldiman, Uttam Garg

Posters

Introduction
Oxcarbazepine is a derivative of carbamazepine that is used primarily in the treatment of epilepsy, and experimentally as a mood-stabilizer in adjunctive therapy for the treatment of bipolar disorder. Oxcarbazepine is converted through oxidation to its pharmacologically active metabolite 10-OH-Carbazepine, which is thought to be responsible for most of the anticonvulsant action of the drug. Adverse effects of oxcarbazepine are generally dose-dependent and may include fatigue, somnolence, dizziness, diplopia, nystagmus, and ataxia. Additive sedative effects have been noted when oxcarbazepine is used in combination with other CNS depressionproducing medications. Furthermore, oxcarbazepine and 10-OH-Carbazepine are powerful CYP2C19 inhibitors, potentially increasing ...


Pepducin-Mediated Cardioprotection Via Β-Arrestin-Biased Β2-Adrenergic Receptor-Specific Signaling, Laurel A. Grisanti, Toby P. Thomas, Rhonda L. Carter, Claudio de Lucia, Erhe Gao, Walter J. Koch, Jeffrey L. Benovic, Douglas G. Tilley 2018 University of Missouri

Pepducin-Mediated Cardioprotection Via Β-Arrestin-Biased Β2-Adrenergic Receptor-Specific Signaling, Laurel A. Grisanti, Toby P. Thomas, Rhonda L. Carter, Claudio De Lucia, Erhe Gao, Walter J. Koch, Jeffrey L. Benovic, Douglas G. Tilley

Department of Biochemistry and Molecular Biology Faculty Papers

Reperfusion as a therapeutic intervention for acute myocardial infarction-induced cardiac injury itself induces further cardiomyocyte death. β-arrestin (βarr)-biased β-adrenergic receptor (βAR) activation promotes survival signaling responses in vitro; thus, we hypothesize that this pathway can mitigate cardiomyocyte death at the time of reperfusion to better preserve function. However, a lack of efficacious βarr-biased orthosteric small molecules has prevented investigation into whether this pathway relays protection against ischemic injury in vivo. We recently demonstrated that the pepducin ICL1-9, a small lipidated peptide fragment designed from the first intracellular loop of β2AR, allosterically engaged pro-survival signaling cascades in a βarr-dependent manner ...


A Novel Exo-Proteomic Approach To The Study Of Traumatic Brain Injury, Ron B. Moyron 2018 Loma Linda University

A Novel Exo-Proteomic Approach To The Study Of Traumatic Brain Injury, Ron B. Moyron

Loma Linda University Electronic Theses, Dissertations & Projects

Concussions and Traumatic Brain Injuries (TBI) are significant health concerns and affect a wide cross section of society. Current diagnostic criteria and modalities, such as brain imaging and subjective measures of consciousness such as the Glasgow Coma Scale (GCS) score, are insufficient to properly diagnose the full spectrum of head injuries. Assessment of injury severity and outcome are further complicated by the vast array of symptoms, many of which mimic those displayed by other disorders. It is important to possess a better diagnostic tool for head injury triage and outcome prediction. One current line of inquiry seeks to discover a ...


Recombinant Human Proteoglycan-4 Reduces Phagocytosis Of Urate Crystals And Downstream Nuclear Factor Kappa B And Inflammasome Activation And Production Of Cytokines And Chemokines In Human And Murine Macrophages, Marwa Qadri, Gregory D. Jay, Ling X. Zhang, Wendy Wong, Anthony M. Reginato, Changqi Sun, Tannin A. Schmidt 2018 Chapman University

Recombinant Human Proteoglycan-4 Reduces Phagocytosis Of Urate Crystals And Downstream Nuclear Factor Kappa B And Inflammasome Activation And Production Of Cytokines And Chemokines In Human And Murine Macrophages, Marwa Qadri, Gregory D. Jay, Ling X. Zhang, Wendy Wong, Anthony M. Reginato, Changqi Sun, Tannin A. Schmidt

Pharmacy Faculty Articles and Research

Microbial biofilms are organized communities of cells that are associated with a wide spectrum of resistant and chronic infections that lead to the treatment failure. Accordingly, there is an urgent demand to create novel effective therapeutic drugs that can inhibit biofilm formation with new mechanisms of action to surmount the current escalating resistance. In this study, in silico hybrid model was utilized to develop three novel short linear peptides (4, 5, and 6) with potential biofilm inhibiting activities (scores > 1.0). The peptides were composed of cationic and hydrophobic residues. They were synthesized using solid-phase strategy. Synthesized peptides were purified ...


3d-Printed Fluidic Devices And Incorporated Graphite Electrodes For Electrochemical Immunoassay Of Biomarker Proteins, Abdulhameed Alabdulwaheed 2018 East Tennessee State University

3d-Printed Fluidic Devices And Incorporated Graphite Electrodes For Electrochemical Immunoassay Of Biomarker Proteins, Abdulhameed Alabdulwaheed

Electronic Theses and Dissertations

Biomarkers are measurable indicators of health status or disease state that can be used for diagnosis and may help guide patient treatment strategies. Enzyme-linked immunosorbent assays (ELISA) and other many clinical techniques currently used for measuring biomarker proteins lack sensitivity, demand high analysis cost, are often not well-suited for measuring multiple biomarkers in a single sample, and require long analysis times. Here, we demonstrate simple, low-cost 3D-printed flow-through devices with integrated electrodes modified with gold nanoparticles (AuNPs) for electrochemical immunoassays of S100B, a biomarker protein related to conditions like skin cancer and brain injuries. Flow-through devices are fabricated from photocurable-resin ...


Alpha-Amino Methylation And Acetylation Are Novel Regulators Of Myl9 Function., Christopher David Nevitt 2018 University of Louisville

Alpha-Amino Methylation And Acetylation Are Novel Regulators Of Myl9 Function., Christopher David Nevitt

Electronic Theses and Dissertations

Dysregulation of alpha-amino post-translational modifications (Nα-PTMs) is found in multiple cancers and developmental disorders. However, the exact roles Nα-PTMs play in regulating protein function remain poorly understood. I sought to clarify the role of Nα-methylation and Nα-acetylation in the regulation of Myosin Regulatory Light Chain 9 (MYL9). MYL9 is a key cytoskeletal regulator and transcription factor and is the first protein confirmed to undergo both Nα-methylation and Nα-acetylation. Through this work I revealed novel regulatory features of MYL9, while also presenting a framework by which to understand the coordinated regulation of proteins by Nα-methylation and Nα-acetylation. Nα-PTM selective mutants of ...


Developing Peptide Therapeutics That Inhibit Bacterial Toxins Utilizing A Cholesterol Recognition Amino Acid Consensus (Crac) Motif, Evan Koufos 2018 Lehigh University

Developing Peptide Therapeutics That Inhibit Bacterial Toxins Utilizing A Cholesterol Recognition Amino Acid Consensus (Crac) Motif, Evan Koufos

Theses and Dissertations

Treatment of bacterial illnesses has become increasingly difficult as the development of new antibiotics is being outpaced by the increasing number of antibiotic-resistant organisms. This has led us to search for alternative therapeutic approaches to help combat these illnesses. A viable approach in treating these illnesses is to focus on inhibiting protein toxins, which are one of the many virulence factors that bacteria secrete. Many toxins recognize and bind to cholesterol (Chol) on the host cell membrane as an initial step in their mechanism; however, a viable method of inhibiting this interaction has yet to be uncovered.For our model ...


Effects Of Eicosapentaenoic Acid (Epa) On Mouse Endothelial Cell Health, Spencer C. Pageau 2018 Grand Valley State University

Effects Of Eicosapentaenoic Acid (Epa) On Mouse Endothelial Cell Health, Spencer C. Pageau

Masters Theses

Cardiovascular disease is the number one killer of adults in the US (~800,000 lives every year:1 in 3 deaths). Evidence suggests omega-3 fatty acids like eicosapentaenoic acid (EPA), found in fish oils, reduce the risk of developing cardiovascular diseases. Many of these diseases are caused by atherosclerotic plaque development in vessels due to endothelial cell damage initiating inflammatory responses. Recent work argues omega-3 fatty acids stimulate anti-inflammatory responses by binding to Free Fatty Acid (FFA) receptors. Inflammatory responses in endothelial cells alter the expression of many proteins that affect the function of those cells. In particular, gap junction ...


Design, Synthesis, And Evaluation Of Homochiral Peptides Containing Arginine And Histidine As Molecular Transporters, Naglaa Salem El-Sayed, Taryn Miyake, Amir Nasrolahi Shirazi, Shang Eun Park, Jimmy Clark, Stephani Buchholz, Keykavous Parang, Rakesh Tiwari 2018 Chapman University

Design, Synthesis, And Evaluation Of Homochiral Peptides Containing Arginine And Histidine As Molecular Transporters, Naglaa Salem El-Sayed, Taryn Miyake, Amir Nasrolahi Shirazi, Shang Eun Park, Jimmy Clark, Stephani Buchholz, Keykavous Parang, Rakesh Tiwari

Pharmacy Faculty Articles and Research

Linear (HR)n and cyclic [HR]n peptides (n = 4,5) containing alternate arginine and histidine residues were synthesized. The peptides showed 0–15% cytotoxicity at 5–100 μM in human ovarian adenocarcinoma (SK-OV-3) cells while they exhibited 0–12% toxicity in human leukemia cancer cell line (CCRF-CEM). Among all peptides, cyclic [HR]4 peptide was able to improve the delivery of a cell impermeable fluorescence-labeled phosphopeptide by two-fold. Fatty acids of different alkyl chain length were attached at the N-terminal of the linear peptide (HR)4 to improve the molecular transporter property. Addition of fatty acyl chains was expected ...


Increased Heme-Oxygenase 1 Expression In Mesenchymal Stem Cell-Derived Adipocytes Decreases Differentiation And Lipid Accumulation Via Upregulation Of The Canonical Wnt Signaling Cascade, Luca Vanella, Komal Sodhi, Dong Hyun Kim, Nitin Puri, Mani Maheshwari, Terry D . Hinds, Lars Bellner, Dov Goldstein, Stephen J . Peterson, Joseph I. Shapiro M.D., Nader G. Abraham 2018 Marshall University

Increased Heme-Oxygenase 1 Expression In Mesenchymal Stem Cell-Derived Adipocytes Decreases Differentiation And Lipid Accumulation Via Upregulation Of The Canonical Wnt Signaling Cascade, Luca Vanella, Komal Sodhi, Dong Hyun Kim, Nitin Puri, Mani Maheshwari, Terry D . Hinds, Lars Bellner, Dov Goldstein, Stephen J . Peterson, Joseph I. Shapiro M.D., Nader G. Abraham

Mani Maheshwari

Introduction:

Heme oxygenase (HO), a major cytoprotective enzyme, attenuates oxidative stress and obesity. The canonical Wnt signaling cascade plays a pivotal role in the regulation of adipogenesis. The present study examined the interplay between HO-1and the Wnt canonical pathway in the modulation of adipogenesis in mesenchymal stem cell (MSC)-derived adipocytes.

Methods:

To verify the role of HO-1 in generating small healthy adipocytes, cobalt protoporphyrin (CoPP), inducer of HO-1, was used during adipocyte differentiation. Lipid accumulation was measured by Oil red O staining and lipid droplet size was measured by BODIPY staining.

Results:

During adipogenesis in vitro, differentiating pre-adipocytes display ...


Cerium Oxide Nanoparticles Inhibit Lipopolysaccharide Inducedmap Kinase/Nf-Kb Mediated Severe Sepsis, Mani Maheshwari, Nandini Manne PhD, Shinichi Asano, Eric Blough, Kevin M. Rice, Niraj Nepa,, Erin Fankhanel 2018 Marshall University

Cerium Oxide Nanoparticles Inhibit Lipopolysaccharide Inducedmap Kinase/Nf-Kb Mediated Severe Sepsis, Mani Maheshwari, Nandini Manne Phd, Shinichi Asano, Eric Blough, Kevin M. Rice, Niraj Nepa,, Erin Fankhanel

Mani Maheshwari

The life threatening disease of sepsis is associated with high mortality. Septic patient survivability with currently available treatments has failed to improve. The purpose of this study was to evaluate whether lipopolysaccharide (LPS) induced sepsis mortality and associated hepatic dysfunction can be prevented by cerium oxide nanoparticles (CeO2NPs) treatment in male Sprague Dawley rats. Here we provide the information about the methods processing of raw data related to our study published in Biomaterials (Selvaraj et al., Biomaterials, 2015, In press) and Data in Brief (Selvaraj et al., Data in Brief, 2015, In Press). The data present here provides confirmation of ...


Extracellular Release Of Virulence Factor Major Surface Protease Via Exosomes In Leishmania Infantum Promastigotes, Skye Marshall, Patrick H. Kelly, Brajesh K. Singh, R Marshall Pope, Peter Kim, Bayan Zhanbolat, Mary E. Wilson, Chaoqun Yao 2018 University of Iowa

Extracellular Release Of Virulence Factor Major Surface Protease Via Exosomes In Leishmania Infantum Promastigotes, Skye Marshall, Patrick H. Kelly, Brajesh K. Singh, R Marshall Pope, Peter Kim, Bayan Zhanbolat, Mary E. Wilson, Chaoqun Yao

Stead Family Department of Pediatrics Publications

BACKGROUND: The Leishmania spp. protozoa are introduced into humans through a sand fly blood meal, depositing the infectious metacyclic promastigote form of the parasite into human skin. Parasites enter a variety of host cells, although a majority are found in macrophages where they replicate intracellularly during chronic leishmaniasis. Symptomatic leishmaniasis causes considerable human morbidity in endemic regions. The Leishmania spp. evade host microbicidal mechanisms partially through virulence-associated proteins such as the major surface protease (MSP or GP63), to inactivate immune factors in the host environment. MSP is a metalloprotease encoded by a tandem array of genes belonging to three msp ...


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