13 results on '"Liberatore K"'
Search Results
2. From emergent transvenous pacemaker to permanent implant and follow-up
- Author
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Barbiere, CC, primary and Liberatore, K, additional
- Published
- 1993
- Full Text
- View/download PDF
3. Automated external defibrillators: an update of additions to the ACLS algorithms
- Author
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Barbiere, CC, primary and Liberatore, K, additional
- Published
- 1992
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4. Clinicians' perception of the problem of antimicrobial resistance in health care facilities.
- Author
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Giblin TB, Sinkowitz-Cochran RL, Harris PL, Jacobs S, Liberatore K, Palfreyman MA, Harrison EI, Cardo DM, and CDC (Centers for Disease Control and Prevention) Campaign to Prevent Antimicrobial Resistance Team
- Published
- 2004
- Full Text
- View/download PDF
5. Epinephrine inhibits PI3Kα via the Hippo kinases.
- Author
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Lin TY, Ramsamooj S, Perrier T, Liberatore K, Lantier L, Vasan N, Karukurichi K, Hwang SK, Kesicki EA, Kastenhuber ER, Wiederhold T, Yaron TM, Huntsman EM, Zhu M, Ma Y, Paddock MN, Zhang G, Hopkins BD, McGuinness O, Schwartz RE, Ersoy BA, Cantley LC, Johnson JL, and Goncalves MD
- Subjects
- Humans, Animals, Mice, Cell Line, Mice, Inbred C57BL, Male, Female, Epinephrine pharmacology, Enzyme Activation drug effects, Phosphatidylinositols chemistry, Phosphatidylinositols metabolism, Gene Deletion, Colforsin pharmacology, Insulin metabolism, Phosphorylation drug effects, Hippo Signaling Pathway drug effects, Hippo Signaling Pathway genetics, Protein Serine-Threonine Kinases chemistry, Protein Serine-Threonine Kinases genetics, Protein Serine-Threonine Kinases metabolism
- Abstract
The phosphoinositide 3-kinase p110α is an essential mediator of insulin signaling and glucose homeostasis. We interrogated the human serine, threonine, and tyrosine kinome to search for novel regulators of p110α and found that the Hippo kinases phosphorylate p110α at T1061, which inhibits its activity. This inhibitory state corresponds to a conformational change of a membrane-binding domain on p110α, which impairs its ability to engage membranes. In human primary hepatocytes, cancer cell lines, and rodent tissues, activation of the Hippo kinases MST1/2 using forskolin or epinephrine is associated with phosphorylation of T1061 and inhibition of p110α, impairment of downstream insulin signaling, and suppression of glycolysis and glycogen synthesis. These changes are abrogated when MST1/2 are genetically deleted or inhibited with small molecules or if the T1061 is mutated to alanine. Our study defines an inhibitory pathway of PI3K signaling and a link between epinephrine and insulin signaling., Competing Interests: Declaration of interests N.V. reports consultant and advisory board activities for Novartis, Petra Pharmaceuticals, Reactive Biosciences, and Magnet Biomedicine. E.A.K. is a shareholder of Eli Lilly and Company, and E.A.K. and K.K. are employees of Loxo Oncology at Lilly. L.C.C. is a founder and member of the board of directors of Agios Pharmaceuticals; is a founder and receives research support from Petra Pharmaceuticals; has equity in and consults for Cell Signaling Technologies, Volastra, Larkspur, and 1 Base Pharmaceuticals; and consults for Loxo-Lilly. J.L.J. has received consulting fees from Scorpion Therapeutics and Volastra Therapeutics. J.L.J. reports consultant activities for Scorpion Therapeutics and Volastra Therapeutics. M.D.G. reports personal fees from Novartis AG, Pfizer, Inc., and Scorpion Therapeutics. L.C.C., B.D.H., and M.D.G. are inventors on patents for Combination Therapy for PI3K-associated Disease or Disorder and The Identification of Therapeutic Interventions to Improve Response to PI3K Inhibitors for Cancer Treatment. B.D.H., L.C.C., and M.D.G. are co-founders and shareholders in Faeth Therapeutics. R.E.S. is on the sponsored advisory board for Miromatrix, Inc., and Lime Therapeutics and is a consultant and speaker for Alnylam, Inc. T.M.Y. is a stockholder and on the board of directors of DESTROKE, Inc., an early-stage start-up developing mobile technology for automated clinical stroke detection., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
6. An atlas of substrate specificities for the human serine/threonine kinome.
- Author
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Johnson JL, Yaron TM, Huntsman EM, Kerelsky A, Song J, Regev A, Lin TY, Liberatore K, Cizin DM, Cohen BM, Vasan N, Ma Y, Krismer K, Robles JT, van de Kooij B, van Vlimmeren AE, Andrée-Busch N, Käufer NF, Dorovkov MV, Ryazanov AG, Takagi Y, Kastenhuber ER, Goncalves MD, Hopkins BD, Elemento O, Taatjes DJ, Maucuer A, Yamashita A, Degterev A, Uduman M, Lu J, Landry SD, Zhang B, Cossentino I, Linding R, Blenis J, Hornbeck PV, Turk BE, Yaffe MB, and Cantley LC
- Subjects
- Humans, Phosphorylation, Substrate Specificity, Datasets as Topic, Cell Line, Phosphoserine metabolism, Phosphothreonine metabolism, Protein Serine-Threonine Kinases metabolism, Serine metabolism, Threonine metabolism, Proteome chemistry, Proteome metabolism, Phosphoproteins chemistry, Phosphoproteins metabolism
- Abstract
Protein phosphorylation is one of the most widespread post-translational modifications in biology
1,2 . With advances in mass-spectrometry-based phosphoproteomics, 90,000 sites of serine and threonine phosphorylation have so far been identified, and several thousand have been associated with human diseases and biological processes3,4 . For the vast majority of phosphorylation events, it is not yet known which of the more than 300 protein serine/threonine (Ser/Thr) kinases encoded in the human genome are responsible3 . Here we used synthetic peptide libraries to profile the substrate sequence specificity of 303 Ser/Thr kinases, comprising more than 84% of those predicted to be active in humans. Viewed in its entirety, the substrate specificity of the kinome was substantially more diverse than expected and was driven extensively by negative selectivity. We used our kinome-wide dataset to computationally annotate and identify the kinases capable of phosphorylating every reported phosphorylation site in the human Ser/Thr phosphoproteome. For the small minority of phosphosites for which the putative protein kinases involved have been previously reported, our predictions were in excellent agreement. When this approach was applied to examine the signalling response of tissues and cell lines to hormones, growth factors, targeted inhibitors and environmental or genetic perturbations, it revealed unexpected insights into pathway complexity and compensation. Overall, these studies reveal the intrinsic substrate specificity of the human Ser/Thr kinome, illuminate cellular signalling responses and provide a resource to link phosphorylation events to biological pathways., (© 2023. The Author(s).)- Published
- 2023
- Full Text
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7. Effect of Osteopathic Manipulative Therapy on Generalized Anxiety Disorder.
- Author
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Dixon L, Fotinos K, Sherifi E, Lokuge S, Fine A, Furtado M, Anand L, Liberatore K, and Katzman MA
- Subjects
- Adult, Female, Humans, Male, Middle Aged, Surveys and Questionnaires, Anxiety Disorders therapy, Manipulation, Osteopathic methods
- Abstract
Context: Traditional management options for generalized anxiety disorder (GAD) have produced low remission rates. As a result, the medical community has turned to complementary and alternative medicine for adjunctive treatment., Objective: To investigate the efficacy of adjunctive osteopathic manipulative therapy (OMTh; manipulative care provided by foreign-trained osteopaths) in individuals with GAD., Methods: This open-label, nonrandomized, black-box study took place at a tertiary care mental health clinic in Toronto, Canada. Adult outpatient participants aged 18 to 65 years with a primary diagnosis of moderate-severe GAD (HAM-A score of ≥20) with or without comorbidities were enrolled in the study between June 2014 and January 2015. Patients who qualified and completed the study received 5 individually tailored OMTh sessions over the course of 8 to 9 weeks. A diagnostic psychiatric assessment (Mini International Neuropsychiatric Interview version 6.0.0) was conducted to confirm diagnoses, along with physician-administered and self-reported measures of anxiety, including the Hamilton Anxiety Scale (HAM-A), the Beck Anxiety Inventory, and the Intolerance for Uncertainty Scale., Results: Significant reductions in total HAM-A scores after OMTh were observed (P<.0001). Significant reductions in total Intolerance for Uncertainty Scale scores were also observed (P<.0001). Beck Anxiety Inventory scores were not found to change significantly with OMTh. Response (defined as 50% reduction of symptoms) and remission (defined as HAM-A score of ≤7) rates were found to be 62% and 26.9%, respectively., Conclusion: Osteopathic manipulative therapy may be a valuable adjunct to conventional therapy in patients with GAD, thus warranting further investigation using double-blind procedures.
- Published
- 2020
- Full Text
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8. Preventing Self-Harm in the Nonpsychiatric Health Care Setting.
- Author
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Liberatore K
- Subjects
- Adult, Delivery of Health Care, Female, Hospitals, Humans, Male, Patient Safety, Risk Management statistics & numerical data, Risk Reduction Behavior, Self-Injurious Behavior prevention & control
- Abstract
The Pennsylvania Patient Safety Reporting System is a confidential, statewide Internet reporting system to which all Pennsylvania hospitals, outpatient-surgery facilities, birthing centers, and abortion facilities must file information on incidents and serious events.Safety Monitor is a column from Pennsylvania's Patient Safety Authority, the authority that informs nurses on issues that can affect patient safety and presents strategies they can easily integrate into practice. For more information on the authority, visit www.patientsafety.pa.gov. For the original article discussed in this column or for other articles on patient safety, click on "Journal and Resources" and then "Advisory Archive" in the navigation menu.
- Published
- 2019
- Full Text
- View/download PDF
9. Protecting Patients with Latex Allergies.
- Author
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Liberatore K
- Subjects
- Humans, Latex Hypersensitivity prevention & control, Patient Safety, Pennsylvania, Latex Hypersensitivity nursing
- Abstract
: The Pennsylvania Patient Safety Reporting System is a confidential, statewide Internet reporting system to which all Pennsylvania hospitals, outpatient-surgery facilities, birthing centers, and abortion facilities must file information on incidents and serious events.Safety Monitor is a column from Pennsylvania's Patient Safety Authority, the authority that informs nurses on issues that can affect patient safety and presents strategies they can easily integrate into practice. For more information on the authority, visit www.patientsafety.pa.gov. For the original article discussed in this column or for other articles on patient safety, click on "Advisories and Events" and then "Pennsylvania Patient Safety Advisory" in the top navigation menu.
- Published
- 2019
- Full Text
- View/download PDF
10. A tissue-specific enhancer of the C. elegans nhr-67/tailless gene drives coordinated expression in uterine stem cells and the differentiated anchor cell.
- Author
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Bodofsky S, Liberatore K, Pioppo L, Lapadula D, Thompson L, Birnbaum S, McClung G, Kartik A, Clever S, and Wightman B
- Subjects
- Animals, Caenorhabditis elegans genetics, Caenorhabditis elegans Proteins genetics, Cell Differentiation, Cell Lineage, Cells, Cultured, Female, Organ Specificity, Organogenesis, Receptors, Cytoplasmic and Nuclear genetics, Stem Cells cytology, Uterus cytology, Uterus metabolism, Caenorhabditis elegans growth & development, Caenorhabditis elegans metabolism, Caenorhabditis elegans Proteins metabolism, Gene Expression Regulation, Developmental, Receptors, Cytoplasmic and Nuclear metabolism, Stem Cells metabolism
- Abstract
The nhr-67 nuclear receptor gene of Caenorhabditis elegans encodes the ortholog of the Drosophila tailless and vertebrate Tlx genes. In C. elegans, nhr-67 plays multiple roles in the development of the uterus during L2 and L3 larval stages. Four pre-VU cells are born in the L2 stage and form the precursor complement for the ventral surface of the mature uterus. One of the four pre-VU cells becomes the anchor cell (AC), which exits the cell cycle and differentiates, while the remaining three VU cells serve as stem cells that populate the ventral uterus. The nhr-67 gene functions in the development of both VU cell lineages and AC differentiation. Hypomorphic mutations in nhr-67 identify a 276bp region of the distal promoter that is sufficient to activate nhr-67 expression in pre-VU cells and the AC. The 276bp region includes 8 conserved potential cis-acting sites, including two E boxes and a nuclear receptor binding site. Mutational analysis demonstrates that the two E boxes are required for expression of nhr-67 in uterine precursor cells. The E/daughterless ortholog HLH-2 binds these sites as a homodimer, thus playing a central role in activating nhr-67 expression in the uterine precursors. At least two other binding activities, one of which may be the nhr-25/Ftz-F1 nuclear receptor transcription factor, also contribute to uterine precursor cell expression. The organization of the nhr-67 uterine precursor enhancer is compared to similar conserved enhancers in the egl-43, lag-2, and lin-3 genes, which contain the same HLH-2-binding E boxes and are similarly expressed in both pre-VU cells and the AC. This basic regulatory module allows the coordinated expression of at least four genes. Expression of genes in different cells that must coordinate to form a mature organ is driven by a shared set of promoter elements, which integrate multiple transcription factor inputs., (Copyright © 2018 Elsevier B.V. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
11. Latex Allergy Risks Live On.
- Author
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Liberatore K and Kelly KJ
- Subjects
- Equipment and Supplies, Gloves, Protective, Humans, Latex Hypersensitivity prevention & control, Risk, Latex Hypersensitivity epidemiology
- Abstract
Reduction in the prevalence of IgE-mediated allergy to latex proteins from gloves in patients may lead to lax attention by health care personnel to avoid use of latex products in latex-allergic subjects. Recent evidence from the Pennsylvania Patient Safety Reporting System shows an alarming continuation of adverse events mostly from latex urinary catheters. We are strongly advocating that health care personnel must continue to pay close attention to avoidance of latex in patients with a history of latex allergy., (Copyright © 2018 American Academy of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
12. Greater adherence to highly active antiretroviral therapy (HAART) between pregnant versus non-pregnant women living with HIV.
- Author
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Zorrilla CD, Santiago LE, Knubson D, Liberatore K, Estronza G, Colón O, and Acevedo M
- Subjects
- Adult, Behavior, CD4 Lymphocyte Count, Chi-Square Distribution, Female, HIV Infections psychology, HIV Infections transmission, Humans, Perinatal Care, Pregnancy, Pregnancy Outcome, Surveys and Questionnaires, Antiretroviral Therapy, Highly Active, HIV Infections drug therapy, Patient Compliance statistics & numerical data
- Abstract
One of the most remarkable advances in the control of the HIV/AIDS pandemic has been the introduction of highly active antiretroviral therapy (HAART). The use of HAART has been associated to reductions in AIDS-related mortality in most countries where HAART is available. Unfortunately, the adherence required to keep good control of viral replication is higher than what is required in other medical conditions. Several studies have shown a relationship between adherence and viral suppression ranging between 90-95% required for complete suppression. Multiple factors have been related to adherence among which are: gender, racial/ethnic distribution, age, personality traits, education, alcohol use and others. For women living with HIV there might be additional difficulties to handle in order to be adherent (i.e. multiple family responsibilities). A group of 165 women living with HIV attending a multidisciplinary clinic were interviewed with a 3-day adherence questionnaire. Correlation with clinical information was obtained from the Clinic Data Base. A total of 37 pregnant and 128 non-pregnant women were included in this analysis, 96% of which were on HAART. Complete adherence (100%) was reported by 91% of the pregnant and 70% of the non-pregnant women. (Fisher's exact test 0.009). The majority, 99% knew the names of their medications. There were no differences among groups in scholarity, history or actual cigarette smoking, history or actual drug use, CD4 lymphocyte counts (median or proportion below 350 cells/mm3), mean HIV RNA viral load or the proportion of patients with HIV RNA < 1,000 copies/ml. The transmission rate for the sample of pregnant women was zero. The reported adherence rates to HAART for women living with HIV were highest among the pregnant women. This difference was statistically significant (Chi Sq 0.05). The great majority (93%) reported knowing the names of the medications. In spite of reported barriers to adherence, pregnant women attending a multidisciplinary clinic for HIV care and research, reported good rates of adherence to HAART. This is also reflected in the good perinatal outcomes. Non-pregnant women with lower adherence rates might need additional interventions to improve adherence.
- Published
- 2003
13. Suppressor mutations derived from the most severe protein folding mutation known.
- Author
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Kowalcyzk RJ, Liberatore KA, and Villafañe RJ
- Subjects
- Bacteriophage P22 genetics, Genes, Suppressor genetics, Glycoside Hydrolases genetics, Mutation, Protein Folding, Viral Tail Proteins genetics
- Abstract
This brief report describes the isolation and initial characterization of revertants to the most severe temperature sensitive folding mutant known. The revertants or suppressors may describe amino acid interactions that occur during the folding of the P22 tailspike polypeptide chain. Results indicate that several different types of suppressors may have been obtained.
- Published
- 1999
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