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Gruber R, Somerville G, Boursier J, Wise M. 0807 Associations Between Report Card Grades And Objective And Subjective Sleep Measures In Adolescents With Insomnia. Sleep 2018. [DOI: 10.1093/sleep/zsy061.806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Santisteban J, Bouchard S, Tappe A, Lane EA, Sommerville G, Boursier J, Gruber R. 0806 Internalizing And Externalizing Symptoms And Sleep Hygiene Behavior In Adolescents. Sleep 2018. [DOI: 10.1093/sleep/zsy061.805] [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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Gruber R, McKinney A, Orlowski J, Wise MS. 0798 Reported Sleep Disturbances in Individuals with Christianson Syndrome. Sleep 2018. [DOI: 10.1093/sleep/zsy061.797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Santisteban J, Garzon O, Brown TG, Gruber R. 0286 Actigraphic Sleep Parameters In Younger And Older Adults. Sleep 2018. [DOI: 10.1093/sleep/zsy061.285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rigney G, Weiss S, Chambers C, Godbout R, Gruber R, Hall W, Reid G, Stremler R, Witmans M, Begum E, Corkum P. Better nights, better days: relative success of digital, media and traditional recruitment methods for an e-health intervention for children with behavioural insomnia. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.1017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Schwabenbauer K, Elentner A, Gruber R, Hermann M, Schmuth M, Dubrac S. 469 Xenobiotic metabolism is triggered in atopic dermatitis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gruber R, Rogerson C, Windpassinger C, Strohal R, Schmuth M, Kroisel P, Janecke A, Gissen P. 177 VPS33B mutations cause ARKID syndrome affecting Rab protein interaction, collagen modification and epidermal structure. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Blunder S, Moosbrugger-Martinz V, Gruber R, Dubrac S, Schmuth M. LB963 PPARG downregulation after skin barrier disruption is mediated by IL-1β. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Santisteban J, Brown TG, Neibert M, Gruber R. 0252 EXPERIMENTAL CUMULATIVE SLEEP RESTRICTION IMPAIRS WORKING MEMORY BUT NOT DECISION MAKING. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Gruber R, Sommerville G, Boursier J. 0902 THE INTERPLAY BETWEEN MOOD AND COGNITION IN ADOLESCENTS’ INSOMNIA. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.901] [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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Tesfaye R, Brown A, Drouin S, Kim E, Gruber R. 0054 THE ROLE OF SLEEP ON THEORY OF MIND DEVELOPMENT IN TYPICALLY DEVELOPING CHILDREN. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Cooper WA, Graves JP, Tran TM, Gruber R, Yamaguchi T, Narushima Y, Okamura S, Sakakibara S, Suzuki C, Watanabe KY, Yamada H, Yamazaki K. Stability Properties of Anisotropic Pressure Stellarator Plasmas with Fluid and Noninteractive Energetic Particles. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst06-a1242] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Knoop C, Edelmayer M, Janjić K, Pensch M, Fischer MB, Gruber R, Agis H. Difference in release kinetics of unwashed and washed platelet-released supernatants from bone substitute materials: the impact of platelet preparation modalities. J Periodontal Res 2017; 52:772-786. [DOI: 10.1111/jre.12447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2016] [Indexed: 12/22/2022]
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Gruber R, Rainer G, Weiss A, Udvardi A, Thiele H, Eckl KM, Schupart R, Nürnberg P, Zschocke J, Schmuth M, Volc-Platzer B, Hennies HC. Morphological alterations in two siblings with autosomal recessive congenital ichthyosis associated with CYP4F22 mutations. Br J Dermatol 2017; 176:1068-1073. [PMID: 27449533 DOI: 10.1111/bjd.14860] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2016] [Indexed: 11/28/2022]
Abstract
Autosomal recessive congenital ichthyosis (ARCI) caused by mutations in CYP4F22 is very rare. CyP4F22, a protein of the cytochrome-P450 family 4, encodes an epidermal ω-hydroxylase decisive in the formation of acylceramides, which is hypothesized to be crucial for skin-barrier function. We report a girl with consanguineous parents presenting as collodion baby with contractures of the great joints and palmoplantar hyperlinearity. In the course of the disease she developed fine scaling of the skin with erythroderma, the latter disappearing until the age of 6 months. Her sister showed a generalized fine-scaling phenotype, and, interestingly, was born without a collodion membrane. The analysis of all known candidate genes for ARCI in parallel with a next-generation sequencing approach using a newly designed dermatogenetics gene panel revealed a previously unknown homozygous splice-site mutation c.549+5G>C in CYP4F22 in both girls, confirming the diagnosis of ARCI. Ultrastructural analysis by transmission electron microscopy in both patients showed epidermal hyperplasia, orthohyperkeratosis with persistence of corneodesmosomes into the outer stratum corneum layers, fragmented and disorganized lamellar lipid bilayers, which could be ascribed to inhomogeneous lamellar body secretion, as well as lamellar body and lipid entombment in the corneocytes. These findings correlated with increased transepidermal water loss on the functional level. For the first time, we report a collodion baby phenotype and epidermal barrier impairment in CyP4F22-deficient epidermis at both the ultrastructural and functional level, and corroborate the importance of CyP4F22 for epidermal maturation and barrier function.
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Svejda B, Muschitz C, Gruber R, Brandtner C, Svejda C, Gasser RW, Santler G, Dimai HP. [Position paper on medication-related osteonecrosis of the jaw (MRONJ)]. Wien Med Wochenschr 2017; 166:68-74. [PMID: 26847441 DOI: 10.1007/s10354-016-0437-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
It is now 12 years since the first article on medication-related osteonecrosis of the jaw (MRONJ) was reported in 2003. The recognition of MRONJ is still inconsistent between physicians and dentists but it is without doubt a severe disease with impairment of oral health-related quality of life. This position paper was developed by three Austrian societies for dentists, oral surgeons and osteologists involved in this topic. This update contains amendments on the incidence, pathophysiology, diagnosis, staging and treatment and provides recommendations for management based on a multidisciplinary international consensus. The MRONJ can be a medication-related side effect of treatment of malignant and benign bone diseases with bisphosphonates (Bp), bevacizumab and denosumab (Dmab) as antiresorptive therapy. The incidence of MRONJ is highest in the oncology patient population (range 1-15 %), where high doses of these medications are used at frequent intervals. In the osteoporosis patient population, the incidence of MRONJ is estimated to be 0.001-0.01 %, marginally higher than the incidence in the general population (< 0.001 %). Other risk factors for MRONJ include glucocorticoid use, maxillary or mandibular bone surgery, poor oral hygiene, chronic inflammation, diabetes mellitus, ill-fitting dentures as well as other drugs, including antiangiogenic agents. Prevention strategies for MRONJ include elimination or stabilization of oral disease prior to initiation of antiresorptive agents, as well as maintenance of good oral hygiene. In those patients at high risk for the development of MRONJ, including cancer patients receiving high-dose BP or Dmab therapy, consideration should be given to withholding antiresorptive therapy following extensive oral surgery until the surgical site heals with mature mucosal coverage. Management of MRONJ is based on the stage of the disease, extent of the lesions and the presence of contributing drug therapy and comorbidity. Conservative therapy includes topical antibiotic oral rinses and systemic antibiotic therapy. Early data have suggested enhanced osseous wound healing with teriparatide in those patients without contraindications for its use. The MRONJ related to denosumab may resolve more quickly with a drug holiday than MRONJ related to bisphosphonates. Localized surgical debridement is indicated in advanced nonresponsive disease and has proven successful. More invasive surgical techniques are becoming increasingly more important. Prevention is the key for the management of MRONJ. This requires a close teamwork for the treating physician and the dentist. It is necessary that this information is disseminated to other relevant health care professionals and organizations.
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Gruber R, Kandler B, Jindra C, Watzak G, Watzek G. Dental Pulp Fibroblasts Contain Target Cells for Lysophosphatidic Acid. J Dent Res 2016; 83:491-5. [PMID: 15153458 DOI: 10.1177/154405910408300611] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Lysophosphatidic acid (LPA) is a locally produced bioactive phospholipid which is involved in tissue repair. The objective of this study was to determine whether dental pulp tissue also responds to the phospholipid. Effects of LPA on proliferation, differentiation, and mitogen-activated protein kinase (MAPK) signaling of dental pulp fibroblasts (DPF) were examined in vitro. We report that DPF express LPA receptors LPA1, LPA2, and LPA3 and respond to the ligand with increased mitogenic activity. Involvement of extracellular signal-regulated kinase, p38 MAPK, and c-Jun NH2-terminal kinase in LPA signaling could be demonstrated by use of specific inhibitors and detection of the phosphorylation status of the kinases. An increased mitogenic activity paralleled a decreased number of alkaline-phosphatase-positive cells and expression levels of dentin sialophosphoprotein and osteocalcin. Together, these results suggest that dental pulp fibroblasts can respond to LPA, a process that may play a role in pulp tissue repair.
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Sukseree S, Rossiter H, Schwarze U, Gruber R, Tschachler E, Eckhart L. 213 Whiter teeth without autophagy – deletion of Atg7 in K14-positive cells impairs the iron metabolism of the murine enamel epithelium. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Blunder S, Moosbrugger-Martinz V, Gruber R, Schmuth M, Dubrac S. 145 Skin barrier impairment downregulates PPARG via IL-1β. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Moosbrugger-Martinz V, Gruber R, Ladstätter K, Bellutti M, Schmuth M, Dubrac S. 359 Regulatory T cells in atopic dermatitis: Immune-suppressive or pro-inflammatory? J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Irving R, Paquin S, Tesfaye R, Gruber R. Screens and Sleep: Are Interactive Screen Activities Associated with Short and Inefficient Sleep? Paediatr Child Health 2016. [DOI: 10.1093/pch/21.supp5.e76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND: Although sleep is essential for healthy development, school-aged children are not getting the recommended number of hours of sleep each night. There is evidence that screen-based activity use is associated with shorter sleep duration and poorer sleep quality in pediatric populations. Findings also suggest that using more interactive activities, such as video games, might be associated with shorter and less efficient sleep, when compared to more passive activities, such as watching television. Few studies have examined this connection in school-aged children and none have employed objective measurements of sleep.
OBJECTIVES: The aim of the present study was to assess the associations between devices that are different in their level of interactivity with quantity and quality of sleep. We hypothesized that more interactive screen activities will explain more of the variability in sleep efficiency and sleep duration compared to less interactive activities.
DESIGN/METHODS: Participants included 78 school-aged children (M=8.57, SD=1.81). Sleep was assessed objectively using actigraphy, a non-invasive device worn to examine sleep-wake patterns by measuring movement. Variables of interest included sleep duration and sleep efficiency. Time spent engaging in screen time activities was assessed via parental reports on the Children’s Leisure Activities Study Survey. Screen activities included time spent watching television/videos, playing video games, and using the computer.
RESULTS: Multiple linear regression analyses were performed to determine possible associations between screen activities and sleep variables. In the first analysis, longer time spent on computer use and playing video gameswas negatively associated with sleep duration (b= -0.04, p<.01; b = -0.05, p<.01, respectively) and the full model explained 24% of the variance. In a second analysis, using the computer was negatively associated with sleep efficiency (b = -0.01, p<.05) and the full model explained 14% of the variance.
CONCLUSION: The current study found that interactive screen activities, including video games playing and computer use, but not watching television, were associated with significantly shorter sleep duration and poorer sleep efficiency. These findings support previous research in school-aged children that suggests video games and other interactive activities are associated with short and inefficient sleep.
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Svejda B, Muschitz C, Gruber R, Santler G, Dimai HP. Positionspapier zur medikamentenassoziierten Osteonekrose des Kiefers (MRONJ). Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1582183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Gruber R. Increased risk of psoriasis in individuals with childhood asthma: therapeutic implications? Br J Dermatol 2016; 173:14. [PMID: 26174643 DOI: 10.1111/bjd.13929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Golder FJ, Dax S, Baby SM, Gruber R, Hoshi T, Ideo C, Kennedy A, Peng S, Puskovic V, Ritchie D, Woodward R, Wardle RL, Van Scott MR, Mannion JC, MacIntyre DE. Identification and Characterization of GAL-021 as a Novel Breathing Control Modulator. Anesthesiology 2015; 123:1093-104. [PMID: 26352381 DOI: 10.1097/aln.0000000000000844] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND The authors describe the preclinical pharmacological properties of GAL-021, a novel peripheral chemoreceptor modulator. METHODS The ventilatory effects of GAL-021 were characterized using tracheal pneumotachometry (n = 4 to 6), plethysmography (n = 5 to 6), arterial blood gas analyses (n = 6 to 11), and nasal capnography (n = 3 to 4) in naive animals and those subjected to morphine-induced respiratory depression. Morphine analgesia in rats was evaluated by tail-flick test (n = 6). Carotid body involvement in GAL-021 ventilatory effects was assessed by comparing responses in intact and carotid sinus nerve-transected rats. Hemodynamic effects of GAL-021 were evaluated in urethane-anesthetized rats (n = 7). The pharmacological profile of GAL-021 in vitro was investigated using radioligand binding, enzyme inhibition, and cellular electrophysiology assays. RESULTS GAL-021 given intravenously stimulated ventilation and/or attenuated opiate-induced respiratory depression in rats, mice, and nonhuman primates, without decreasing morphine analgesia in rats. GAL-021 did not alter mean arterial pressure but produced a modest increase in heart rate. Ventilatory stimulation in rats was attenuated by carotid sinus nerve transection. GAL-021 inhibited KCa1.1 in GH3 cells, and the evoked ventilatory stimulation was attenuated in Slo1 mice lacking the pore-forming α-subunit of the KCa1.1 channel. CONCLUSIONS GAL-021 behaved as a breathing control modulator in rodents and nonhuman primates and diminished opioid-induced respiratory depression without compromising opioid analgesia. It acted predominantly at the carotid body, in part by inhibiting KCa1.1 channels. Its preclinical profile qualified the compound to enter clinical trials to assess effects on breathing control disorders such as drug (opioid)-induced respiratory depression and sleep apnea.
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Cvikl B, Lussi A, Moritz A, Sawada K, Gruber R. Differential inflammatory response of dental pulp explants and fibroblasts to saliva. Int Endod J 2015; 49:655-62. [PMID: 26114806 DOI: 10.1111/iej.12493] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 06/22/2015] [Indexed: 11/29/2022]
Abstract
AIM To investigate the inflammatory response of dental pulp fibroblasts and the respective explants to whole saliva. METHODOLOGY Explants from human and porcine dental pulp tissue and isolated dental pulp fibroblasts were used to investigate the inflammatory response to sterile saliva. Cytokine and chemokine expression was assessed by RT-PCR. Western blot analysis and pharmacologic inhibitors were used to determine the involvement of signalling pathways. RESULTS Dental pulp explants of human and porcine origin exposed to human saliva exhibited no major changes of IL-6 and IL-8 mRNA expression (P > 0.05). In contrast, isolated porcine and human dental pulp fibroblasts, when stimulated with human saliva, exhibited a vastly increased expression of IL-6 and IL-8 mRNA (P < 0.05). In pulp fibroblasts, saliva also increased the expression of other cytokines and chemokines via activation of NFkappaB, ERK and p38 signalling. Notably, a significantly reduced inflammatory response was elicited when pulp fibroblasts were transiently exposed to saliva. CONCLUSIONS Saliva has a potential impact on inflammation of dental pulp fibroblasts in vitro but not when cells are embedded in the intrinsic extracellular matrix of the explant tissue.
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Cassoff J, Gruber R, Giles L, Karabachian L, Mangal M, Knäuper B. 19: The Motivating Teens to Sleep More Program Improves Sleep Hygiene Behaviours in High School Students. Paediatr Child Health 2015. [DOI: 10.1093/pch/20.5.e39] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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