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  1. Article ; Online: Informatics Inference of Exercise-Induced Modulation of Brain Pathways Based on Cerebrospinal Fluid Micro-RNAs in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome.

    Narayan, Vaishnavi / Shivapurkar, Narayan / Baraniuk, James N

    Network and systems medicine

    2020  Volume 3, Issue 1, Page(s) 142–158

    Abstract: Introduction: ...

    Abstract Introduction:
    Language English
    Publishing date 2020-11-18
    Publishing country United States
    Document type Journal Article
    ISSN 2690-5949
    ISSN (online) 2690-5949
    DOI 10.1089/nsm.2019.0009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Implicating the cholecystokinin B receptor in liver stem cell oncogenesis.

    Gay, Martha D / Drda, Jack C / Chen, Wenqiang / Huang, Yimeng / Yassin, Amal A / Duka, Tetyana / Fang, Hongbin / Shivapurkar, Narayan / Smith, Jill P

    American journal of physiology. Gastrointestinal and liver physiology

    2024  Volume 326, Issue 3, Page(s) G291–G309

    Abstract: Hepatocellular carcinoma (HCC) is the fastest-growing cause of cancer-related deaths worldwide. Chronic inflammation and fibrosis are the greatest risk factors for the development of HCC. Although the cell of origin for HCC is uncertain, many theories ... ...

    Abstract Hepatocellular carcinoma (HCC) is the fastest-growing cause of cancer-related deaths worldwide. Chronic inflammation and fibrosis are the greatest risk factors for the development of HCC. Although the cell of origin for HCC is uncertain, many theories believe this cancer may arise from liver progenitor cells or stem cells. Here, we describe the activation of hepatic stem cells that overexpress the cholecystokinin-B receptor (CCK-BR) after liver injury with either a DDC diet (0.1% 3, 5-diethoxy-carbonyl 1,4-dihydrocollidine) or a NASH-inducing CDE diet (choline-deficient ethionine) in murine models. Pharmacologic blockade of the CCK-BR with a receptor antagonist proglumide or knockout of the CCK-BR in genetically engineered mice during the injury diet reduces the expression of hepatic stem cells and prevents the formation of three-dimensional tumorspheres in culture. RNA sequencing of livers from DDC-fed mice treated with proglumide or DDC-fed CCK-BR knockout mice showed downregulation of differentially expressed genes involved in cell proliferation and oncogenesis and upregulation of tumor suppressor genes compared with controls. Inhibition of the CCK-BR decreases hepatic transaminases, fibrosis, cytokine expression, and alters the hepatic immune cell signature rendering the liver microenvironment less oncogenic. Furthermore, proglumide hastened recovery after liver injury by reversing fibrosis and improving markers of synthetic function. Proglumide is an older drug that is orally bioavailable and being repurposed for liver conditions. These findings support a promising therapeutic intervention applicable to patients to prevent the development of HCC and decrease hepatic fibrosis.
    MeSH term(s) Humans ; Mice ; Animals ; Receptor, Cholecystokinin B/genetics ; Receptor, Cholecystokinin B/metabolism ; Carcinoma, Hepatocellular/pathology ; Proglumide/pharmacology ; Liver Neoplasms/metabolism ; Liver/metabolism ; Fibrosis ; Stem Cells/metabolism ; Carcinogenesis/metabolism ; Cell Transformation, Neoplastic/metabolism ; Cholecystokinin/metabolism ; Tumor Microenvironment
    Chemical Substances Receptor, Cholecystokinin B ; Proglumide (EPL8W5565D) ; Cholecystokinin (9011-97-6)
    Language English
    Publishing date 2024-01-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603840-2
    ISSN 1522-1547 ; 0193-1857
    ISSN (online) 1522-1547
    ISSN 0193-1857
    DOI 10.1152/ajpgi.00208.2023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Author Correction: Exercise - induced changes in cerebrospinal fluid miRNAs in Gulf War Illness, Chronic Fatigue Syndrome and sedentary control subjects.

    Baraniuk, James N / Shivapurkar, Narayan

    Scientific reports

    2018  Volume 8, Issue 1, Page(s) 6455

    Abstract: A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper. ...

    Abstract A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.
    Language English
    Publishing date 2018-04-19
    Publishing country England
    Document type Published Erratum
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-018-23238-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Cholecystokinin Receptor Antagonist Induces Pancreatic Stellate Cell Plasticity Rendering the Tumor Microenvironment Less Oncogenic.

    Jolly, Gurbani / Duka, Tetyana / Shivapurkar, Narayan / Chen, Wenqiang / Bansal, Sunil / Cheema, Amrita / Smith, Jill P

    Cancers

    2023  Volume 15, Issue 10

    Abstract: CCK receptors are expressed on pancreatic cancer epithelial cells, and blockade with receptor antagonists decreases tumor growth. Activated pancreatic stellate cells or myofibroblasts have also been described to express CCK receptors, but the ... ...

    Abstract CCK receptors are expressed on pancreatic cancer epithelial cells, and blockade with receptor antagonists decreases tumor growth. Activated pancreatic stellate cells or myofibroblasts have also been described to express CCK receptors, but the contribution of this novel pathway in fibrosis of the pancreatic cancer microenvironment has not been studied. We examined the effects of the nonselective CCK receptor antagonist proglumide on the activation, proliferation, collagen deposition, differential expression of genes, and migration in both murine and human PSCs. CCK receptor expression was examined using western blot analysis. Collagen production using activated PSCs was analyzed by mass spectroscopy and western blot. Migration of activated PSCs was prevented in vitro by proglumide and the CCK-B receptor antagonist, L365,260, but not by the CCK-A receptor antagonist L365,718. Proglumide effectively decreased the expression of extracellular matrix-associated genes and collagen-associated proteins in both mouse and human PSCs. Components of fibrosis, including hydroxyproline and proline levels, were significantly reduced in PSC treated with proglumide compared to controls. CCK peptide stimulated mouse and human PSC proliferation, and this effect was blocked by proglumide. These investigations demonstrate that targeting the CCK-B receptor signaling pathway with proglumide may alter the plasticity of PSC, rendering them more quiescent and leading to a decrease in fibrosis in the pancreatic cancer microenvironment.
    Language English
    Publishing date 2023-05-18
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers15102811
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Expansion of plasma MicroRNAs over the first month following human stroke.

    Edwardson, Matthew A / Shivapurkar, Narayan / Li, James / Khan, Muhib / Smith, Jamal / Giannetti, Margot L / Fan, Ruzong / Dromerick, Alexander W

    Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism

    2023  Volume 43, Issue 12, Page(s) 2130–2143

    Abstract: Few have characterized miRNA expression during the transition from injury to neural repair and secondary neurodegeneration following stroke in humans. We compared expression of 754 miRNAs from plasma samples collected 5, 15, and 30 days post-ischemic ... ...

    Abstract Few have characterized miRNA expression during the transition from injury to neural repair and secondary neurodegeneration following stroke in humans. We compared expression of 754 miRNAs from plasma samples collected 5, 15, and 30 days post-ischemic stroke from a discovery cohort (n = 55) and 15-days post-ischemic stroke from a validation cohort (n = 48) to healthy control samples (n = 55 and 48 respectively) matched for age, sex, race and cardiovascular comorbidities using qRT-PCR. Eight miRNAs remained significantly altered across all time points in both cohorts including many described in acute stroke. The number of significantly dysregulated miRNAs more than doubled from post-stroke day 5 (19 miRNAs) to days 15 (50 miRNAs) and 30 (57 miRNAs). Twelve brain-enriched miRNAs were significantly altered at one or more time points (decreased expression, stroke versus controls: miR-107; increased expression: miR-99-5p, miR-127-3p, miR-128-3p, miR-181a-3p, miR-181a-5p, miR-382-5p, miR-433-3p, miR-491-5p, miR-495-3p, miR-874-3p, and miR-941). Many brain-enriched miRNAs were associated with apoptosis over the first month post-stroke whereas other miRNAs suggested a transition to synapse regulation and neuronal protection by day 30. These findings suggest that a program of decreased cellular proliferation may last at least 30 days post-stroke, and points to specific miRNAs that could contribute to neural repair in humans.
    MeSH term(s) Humans ; MicroRNAs/metabolism ; Stroke/genetics ; Ischemic Stroke ; Brain/metabolism ; Case-Control Studies ; Gene Expression Profiling
    Chemical Substances MicroRNAs ; MIRN433 microRNA, human ; MIRN491 microRNA, human ; MIRN495 microRNA, human ; MIRN874 microRNA, human
    Language English
    Publishing date 2023-09-11
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, N.I.H., Intramural
    ZDB-ID 604628-9
    ISSN 1559-7016 ; 0271-678X
    ISSN (online) 1559-7016
    ISSN 0271-678X
    DOI 10.1177/0271678X231196982
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Author Correction

    James N. Baraniuk / Narayan Shivapurkar

    Scientific Reports, Vol 8, Iss 1, Pp 1-

    Exercise – induced changes in cerebrospinal fluid miRNAs in Gulf War Illness, Chronic Fatigue Syndrome and sedentary control subjects

    2018  Volume 5

    Abstract: A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper. ...

    Abstract A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.
    Keywords Medicine ; R ; Science ; Q
    Language English
    Publishing date 2018-04-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Exercise - induced changes in cerebrospinal fluid miRNAs in Gulf War Illness, Chronic Fatigue Syndrome and sedentary control subjects.

    Baraniuk, James N / Shivapurkar, Narayan

    Scientific reports

    2017  Volume 7, Issue 1, Page(s) 15338

    Abstract: Gulf War Illness (GWI) and Chronic Fatigue Syndrome (CFS) have similar profiles of pain, fatigue, cognitive dysfunction and exertional exhaustion. Post-exertional malaise suggests exercise alters central nervous system functions. Lumbar punctures were ... ...

    Abstract Gulf War Illness (GWI) and Chronic Fatigue Syndrome (CFS) have similar profiles of pain, fatigue, cognitive dysfunction and exertional exhaustion. Post-exertional malaise suggests exercise alters central nervous system functions. Lumbar punctures were performed in GWI, CFS and control subjects after (i) overnight rest (nonexercise) or (ii) submaximal bicycle exercise. Exercise induced postural tachycardia in one third of GWI subjects (Stress Test Activated Reversible Tachycardia, START). The remainder were Stress Test Originated Phantom Perception (STOPP) subjects. MicroRNAs (miRNA) in cerebrospinal fluid were amplified by quantitative PCR. Levels were equivalent between nonexercise GWI (n = 22), CFS (n = 43) and control (n = 22) groups. After exercise, START (n = 22) had significantly lower miR-22-3p than control (n = 15) and STOPP (n = 42), but higher miR-9-3p than STOPP. All post-exercise groups had significantly reduced miR-328 and miR-608 compared to nonexercise groups; these may be markers of exercise effects on the brain. Six miRNAs were significantly elevated and 12 diminished in post-exercise START, STOPP and control compared to nonexercise groups. CFS had 12 diminished miRNAs after exercise. Despite symptom overlap of CFS, GWI and other illnesses in their differential diagnosis, exercise-induced miRNA patterns in cerebrospinal fluid indicated distinct mechanisms for post-exertional malaise in CFS and START and STOPP phenotypes of GWI.
    MeSH term(s) Adult ; Biomarkers/cerebrospinal fluid ; Exercise ; Fatigue Syndrome, Chronic/cerebrospinal fluid ; Fatigue Syndrome, Chronic/physiopathology ; Humans ; Male ; MicroRNAs/cerebrospinal fluid ; Persian Gulf Syndrome/cerebrospinal fluid ; Persian Gulf Syndrome/physiopathology
    Chemical Substances Biomarkers ; MicroRNAs
    Language English
    Publishing date 2017-11-10
    Publishing country England
    Document type Clinical Trial ; Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-017-15383-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Exercise – induced changes in cerebrospinal fluid miRNAs in Gulf War Illness, Chronic Fatigue Syndrome and sedentary control subjects

    James N. Baraniuk / Narayan Shivapurkar

    Scientific Reports, Vol 7, Iss 1, Pp 1-

    2017  Volume 14

    Abstract: Abstract Gulf War Illness (GWI) and Chronic Fatigue Syndrome (CFS) have similar profiles of pain, fatigue, cognitive dysfunction and exertional exhaustion. Post-exertional malaise suggests exercise alters central nervous system functions. Lumbar ... ...

    Abstract Abstract Gulf War Illness (GWI) and Chronic Fatigue Syndrome (CFS) have similar profiles of pain, fatigue, cognitive dysfunction and exertional exhaustion. Post-exertional malaise suggests exercise alters central nervous system functions. Lumbar punctures were performed in GWI, CFS and control subjects after (i) overnight rest (nonexercise) or (ii) submaximal bicycle exercise. Exercise induced postural tachycardia in one third of GWI subjects (Stress Test Activated Reversible Tachycardia, START). The remainder were Stress Test Originated Phantom Perception (STOPP) subjects. MicroRNAs (miRNA) in cerebrospinal fluid were amplified by quantitative PCR. Levels were equivalent between nonexercise GWI (n = 22), CFS (n = 43) and control (n = 22) groups. After exercise, START (n = 22) had significantly lower miR-22-3p than control (n = 15) and STOPP (n = 42), but higher miR-9-3p than STOPP. All post-exercise groups had significantly reduced miR-328 and miR-608 compared to nonexercise groups; these may be markers of exercise effects on the brain. Six miRNAs were significantly elevated and 12 diminished in post-exercise START, STOPP and control compared to nonexercise groups. CFS had 12 diminished miRNAs after exercise. Despite symptom overlap of CFS, GWI and other illnesses in their differential diagnosis, exercise-induced miRNA patterns in cerebrospinal fluid indicated distinct mechanisms for post-exertional malaise in CFS and START and STOPP phenotypes of GWI.
    Keywords Medicine ; R ; Science ; Q
    Subject code 796
    Language English
    Publishing date 2017-11-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Proglumide Reverses Nonalcoholic Steatohepatitis by Interaction with the Farnesoid X Receptor and Altering the Microbiome.

    Gay, Martha D / Cao, Hong / Shivapurkar, Narayan / Dakshanamurthy, Sivanesan / Kallakury, Bhaskar / Tucker, Robin D / Kwagyan, John / Smith, Jill P

    International journal of molecular sciences

    2022  Volume 23, Issue 3

    Abstract: Nonalcoholic steatohepatitis (NASH) is associated with obesity, metabolic syndrome, and dysbiosis of the gut microbiome. Cholecystokinin (CCK) is released by saturated fats and plays an important role in bile acid secretion. CCK receptors are expressed ... ...

    Abstract Nonalcoholic steatohepatitis (NASH) is associated with obesity, metabolic syndrome, and dysbiosis of the gut microbiome. Cholecystokinin (CCK) is released by saturated fats and plays an important role in bile acid secretion. CCK receptors are expressed on cholangiocytes, and CCK-B receptor expression increases in the livers of mice with NASH. The farnesoid X receptor (FXR) is involved in bile acid transport and is a target for novel therapeutics for NASH. The aim of this study was to examine the role of proglumide, a CCK receptor inhibitor, in a murine model of NASH and its interaction at FXR. Mice were fed a choline deficient ethionine (CDE) diet to induce NASH. Some CDE-fed mice received proglumide-treated drinking water. Blood was collected and liver tissues were examined histologically. Proglumide's interaction at FXR was evaluated by computer modeling, a luciferase reporter assay, and tissue FXR expression. Stool microbiome was analyzed by RNA-Sequencing. CDE-fed mice developed NASH and the effect was prevented by proglumide. Computer modeling demonstrated specific binding of proglumide to FXR. Proglumide binding in the reporter assay was consistent with a partial agonist at the FXR with a mean binding affinity of 215 nM. FXR expression was significantly decreased in livers of CDE-fed mice compared to control livers, and proglumide restored FXR expression to normal levels. Proglumide therapy altered the microbiome signature by increasing beneficial and decreasing harmful bacteria. These data highlight the potential novel mechanisms by which proglumide therapy may improve NASH through interaction with the FXR and consequent alteration of the gut microbiome.
    MeSH term(s) Animals ; Bacteria/classification ; Bacteria/genetics ; Bacteria/isolation & purification ; Disease Models, Animal ; Gastrointestinal Microbiome/drug effects ; Gene Expression Regulation/drug effects ; Male ; Mice ; Mice, Inbred C57BL ; Models, Molecular ; Molecular Docking Simulation ; Molecular Dynamics Simulation ; Non-alcoholic Fatty Liver Disease/chemically induced ; Non-alcoholic Fatty Liver Disease/drug therapy ; Non-alcoholic Fatty Liver Disease/metabolism ; Phylogeny ; Proglumide/administration & dosage ; Proglumide/chemistry ; Proglumide/pharmacology ; Receptors, Cytoplasmic and Nuclear/chemistry ; Receptors, Cytoplasmic and Nuclear/metabolism
    Chemical Substances Receptors, Cytoplasmic and Nuclear ; farnesoid X-activated receptor (0C5V0MRU6P) ; Proglumide (EPL8W5565D)
    Language English
    Publishing date 2022-02-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms23031899
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Target-Specific Nanoparticle Polyplex Down-Regulates Mutant

    Smith, Jill P / Chen, Wenqiang / Shivapurkar, Narayan / Gerber, Monica / Tucker, Robin D / Kallakury, Bhaskar / Dasa, Siva Sai Krishna / Kularatne, Ruvanthi N / Stern, Stephan T

    International journal of molecular sciences

    2023  Volume 24, Issue 1

    Abstract: Survival from pancreatic cancer is poor because most cancers are diagnosed in the late stages and there are no therapies to prevent the progression of precancerous pancreatic intraepithelial neoplasms (PanINs). Inhibiting ... ...

    Abstract Survival from pancreatic cancer is poor because most cancers are diagnosed in the late stages and there are no therapies to prevent the progression of precancerous pancreatic intraepithelial neoplasms (PanINs). Inhibiting mutant
    MeSH term(s) Mice ; Humans ; Animals ; Proto-Oncogene Proteins p21(ras)/genetics ; Proto-Oncogene Proteins p21(ras)/metabolism ; Disease Models, Animal ; Pancreatic Neoplasms/genetics ; Pancreatic Neoplasms/prevention & control ; Pancreas/metabolism ; Carcinogenesis/genetics ; Carcinogenesis/pathology ; Carcinoma in Situ/genetics ; Carcinoma, Pancreatic Ductal/pathology ; Pancreatic Neoplasms
    Chemical Substances Proto-Oncogene Proteins p21(ras) (EC 3.6.5.2) ; KRAS protein, human
    Language English
    Publishing date 2023-01-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24010752
    Database MEDical Literature Analysis and Retrieval System OnLINE

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