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Early suppression of peripheral mononuclear blood cells in sepsis in response to stimulation with cytomegalovirus, OKT3, and pokeweed mitogen. J Appl Physiol (1985) 2019; 127:1539-1547. [PMID: 31545153 DOI: 10.1152/japplphysiol.00438.2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Critically ill patients are at risk for sepsis, and immunosuppressive mechanisms may prevail. Whether functional tests are helpful to detect immune alterations is largely unknown. Therefore, we tested the hypotheses that reactivity of peripheral blood mononuclear cells (PBMCs) to secrete interferon-γ (IFNγ) following stimulation in vitro is decreased in patients with early sepsis compared with postoperative patients. IFNγ secretion [enzyme-linked immunospot (ELISpot)] in response to stimulation with cytomegalovirus (CMV), pokeweed mitogen (PWM), muromonab-anti-CD3 (OKT3), and human leukocyte antigen (HLA)-DRA-mRNA expression and serum cytokine concentrations were repeatedly [days 1, 3, 5, and 7 after intensive care unit (ICU) admission] determined in patients with sepsis (n = 7) and patients undergoing major abdominal surgery (radical prostatectomy, cystectomy, n = 10). In a second cohort, HLA-DRA expression was assessed in 80 patients with sepsis, 30 postoperative patients, and 44 healthy volunteers (German clinical trials database no. 00007694). In patients with sepsis, IFNγ secretion (ELISpot) was decreased compared with controls after stimulation with CMV (P = 0.01), OKT3 (P = 0.02), and PWM (P = 0.02 on day 5), whereas unstimulated IFNγ secretion did not differ. HLA-DRA expression was also significantly decreased in patients with sepsis at all time points (P = 0.004) compared with postoperative surgical patients, a finding confirmed in the larger cohort. Reactivity of PBMCs to stimulation with CMV, PWM, and OKT3 as well as HLA-DRA expression was already decreased upon ICU admission in patients with sepsis when compared with postoperative controls, suggesting early depression of acquired immunity. ELISpot assays may help to clinically characterize the time course of immunocompetence in patients with sepsis.NEW & NOTEWORTHY We observed suppression of reactivity to stimulation with cytomegalovirus, muromonab-anti-CD3, and pokeweed mitogen in mononuclear blood cells of patients with early sepsis when compared with postoperative controls. Thus, there is early depression of acquired immunity in sepsis. Enzyme-linked immunospot assays may help to characterize immunocompetence in patients with sepsis.
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DISTRACTED DRIVING IN OLDER ADULTS: PRACTICES AND ATTITUDES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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110 On-line breath analysis with secondary electrospray ionization discriminates between COPD patients with and without frequent exacerbations. Chest 2017. [DOI: 10.1016/j.chest.2017.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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P149 Targeted on-line breath analysis discriminates COPD patients vs. healthy controls and subjects suffering from asthma. Chest 2017. [DOI: 10.1016/j.chest.2017.04.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Heart‐Specific Overexpression of FOXO Ameliorates Performance Decline through Enhanced UPS Processing in Aging Drosophila. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.726.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Butyl-cyanoacrylate adhesives for fixation of autologous bone graft. Study in rabbits. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Short-term outcome after surgical embolectomy in pulmonary embolism: A single-center experience. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1367425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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AB0028 Smoking induces expression of mic ligands of the activating immune receptor nkg2d. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Condensationsproducte aus Pyridylmethylketon mit Benzaldehyd und o-Nitrobenzaldehyd. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/cber.19020350437] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Preliminary evidence for a modulation of fetal dopaminergic development by maternal immune activation during pregnancy. Neuroscience 2008; 154:701-9. [DOI: 10.1016/j.neuroscience.2008.04.031] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2008] [Accepted: 04/15/2008] [Indexed: 12/22/2022]
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Erratum to “Weakened taste-LPS association during endotoxin tolerance” [Physiology & Behavior 93 (2008) 261–266]. Physiol Behav 2008. [DOI: 10.1016/j.physbeh.2008.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Behavioural Conditioning of Immune Functions: How the Central Nervous System Controls Peripheral Immune Responses by Evoking Associative Learning Processes. Rev Neurosci 2008; 19:1-17. [DOI: 10.1515/revneuro.2008.19.1.1] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Weakened [corrected] taste-LPS association during endotoxin tolerance. Physiol Behav 2007; 93:261-6. [PMID: 17920645 DOI: 10.1016/j.physbeh.2007.08.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2007] [Revised: 07/25/2007] [Accepted: 08/29/2007] [Indexed: 11/27/2022]
Abstract
In naive individuals, the administration of bacterial lipopolysaccharide (LPS) provokes a rapid systemic increase in pro-inflammatory cytokines such as tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta and IL-6, inducing an acute phase response including sickness behavior. Strong associative learning occurs when relevant gustatory/olfactory stimuli precede the activation of the immune system, affecting long-term individual food selection and nutritional strategies. Repeated LPS administration results in the development of an endotoxin tolerance status, characterized by a drastic reduction in the LPS-induced cytokine response. Here we investigated how the postprandial categorization of a relevant taste (0.2% saccharin) changed after administration of a high dose of LPS (0.5 mg/kg i.p.) in LPS-tolerant animals. Determination of the consummatory fluid intake revealed that, in contrast to LPS-naive rats, taste-LPS association did not occur during endotoxin tolerance. Ninety minutes after the single association trial, the plasma responses of TNF-alpha, IL-1beta and IL-6 were completely blunted in LPS-tolerant animals, which also resulted in low LPS-adipsogenic and LPS-anorexic effects. These findings indicate that an identical immune challenge can result in completely different neuro-behavioral consequences depending on the immune history of the individual, thus revealing part of the complex interconnection between the immune and neuro-endocrine systems in regulating food selection and consumption during the infectious process.
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Solution structure of human immunodeficiency virus type 1 Vpr(13-33) peptide in micelles. EUROPEAN JOURNAL OF BIOCHEMISTRY 2001; 268:389-95. [PMID: 11168374 DOI: 10.1046/j.1432-1033.2001.01895.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Human immunodeficiency virus type 1 protein R (HIV-1 Vpr) promotes nuclear entry of viral nucleic acids in nondividing cells, causes G2 cell cycle arrest and is involved in cellular differentiation and cell death. Also, Vpr subcellular localization is as variable as its functions. It is known that, consistent with its role in nuclear transport, Vpr localizes to the nuclear envelope of human cells. Further, a reported ion channel activity of Vpr obviously is dependent on its localization in or at membranes. We focused our structural studies on the secondary structure of a peptide consisting of residues 13-33 of HIV-1 Vpr in micelles. Employing nuclear magnetic resonance and circular dichroism spectroscopy we found this part of Vpr, known to be essential for nuclear localization, to be almost completely alpha helical. Our results provide structural data suggesting residues 13-33 of Vpr to form an amphipathic, leucine-zipper-like alpha helix that serves as a basis for interactions with a variety of viral and cellular factors.
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Erfassung von gesundheitlichen Störungen und Einschätzung toxischer Risiken durch chemische Produkte beim Menschen. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2000. [DOI: 10.1007/s001030050265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Crystal structure of (rac)-methyl(2S*,2R'*,4'S*,12bR*)-2,-tert-butyl-1, 2,6,7,12,12b-hexahydro-4'-methyl-2-(5'-oxo-1',3'-dioxolane-4'-yl)indolo[ 2,3-α]-quinolizine-3-carboxylate, C25H30N2O5. Z KRIST-NEW CRYST ST 1997. [DOI: 10.1524/ncrs.1997.212.1.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Measurement of pi 0 pi 0 production in two-photon collisions. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1990; 41:3324-3335. [PMID: 10012270 DOI: 10.1103/physrevd.41.3324] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Formation of the pseudoscalars pi 0, eta, and eta ' in the reaction gamma gamma --> gamma gamma. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1988; 38:1365-1376. [PMID: 9959284 DOI: 10.1103/physrevd.38.1365] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Determination ofГ ee of the Υ(1S) and Υ(2S) resonances, and measurement ofR atW=9.39 GeV. ACTA ACUST UNITED AC 1988. [DOI: 10.1007/bf01559717] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Production of eta and omega mesons in tau decay and a search for second-class currents. PHYSICAL REVIEW LETTERS 1987; 59:1993-1996. [PMID: 10035390 DOI: 10.1103/physrevlett.59.1993] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Measurement of the properties of the eta ' and search for other resonances in gamma gamma --> eta pi 0 pi 0. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1987; 36:2633-2640. [PMID: 9958480 DOI: 10.1103/physrevd.36.2633] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Gamma (b-->ul nu )/ Gamma (b-->cl nu ) from the end point of the lepton momentum spectrum in semileptonic B decay. PHYSICAL REVIEW LETTERS 1987; 59:407-410. [PMID: 10035761 DOI: 10.1103/physrevlett.59.407] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Improved upper limit on flavor-changing neutral-current decays of the b quark. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1987; 35:3533-3536. [PMID: 9957615 DOI: 10.1103/physrevd.35.3533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Limit on the mass of the tau neutrino. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1987; 35:2747-2751. [PMID: 9957983 DOI: 10.1103/physrevd.35.2747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Spin analysis of the chi b states. PHYSICAL REVIEW LETTERS 1987; 58:972-975. [PMID: 10034299 DOI: 10.1103/physrevlett.58.972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Search for magnetically charged particles produced in e+e- annihilations at sqrt s =10.6 GeV. Int J Clin Exp Med 1987; 35:1081-1084. [PMID: 9957760 DOI: 10.1103/physrevd.35.1081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Inclusive B-meson decays into charm. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1987; 35:19-26. [PMID: 9957488 DOI: 10.1103/physrevd.35.19] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Upper limits for the production of light short-lived neutral particles in radiative Upsilon decay. PHYSICAL REVIEW LETTERS 1986; 56:2676-2679. [PMID: 10033062 DOI: 10.1103/physrevlett.56.2676] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Formation of delta(980) and A2(1320) in photon-photon collisions. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1986; 33:1847-1851. [PMID: 9956842 DOI: 10.1103/physrevd.33.1847] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Measurement of the direct photon spectrum from the Upsilon (1S). PHYSICAL REVIEW LETTERS 1986; 56:1222-1225. [PMID: 10032605 DOI: 10.1103/physrevlett.56.1222] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Measurement of the decay Upsilon (2S)--> pi pi Upsilon (1S). PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1985; 32:2893-2900. [PMID: 9956071 DOI: 10.1103/physrevd.32.2893] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Observation of three P states in the radiative decay of Upsilon (2S). PHYSICAL REVIEW LETTERS 1985; 54:2195-2198. [PMID: 10031277 DOI: 10.1103/physrevlett.54.2195] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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