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Anita Brito, Fabiele Baldino Russo, Alysson Renato Muotri, Patricia Cristina Baleeiro Beltrão-Braga
Autism spectrum disorders (ASD) represent a variety of disorders characterized as complex lifelong neurodevelopment disabilities, which may affect the ability of communication and socialization, including typical comportments like repetitive and stereotyped behavior. Other comorbidities are usually present, such as echolalia, hypotonia, intellectual disability and difficulties in processing figured speech. Furthermore, some ASD individuals may present certain abilities, such as eidetic memory, outstanding musical or painting talents and special mathematical skills, among others...
January 2018: Cell and Tissue Research
Catherine J Jackson, Sjur Reppe, Jon R Eidet, Lars Eide, Kim A Tønseth, Linda H Bergersen, Darlene A Dartt, May Griffith, Tor P Utheim
Cultured epidermal cell sheets (CES) containing undifferentiated cells are useful for treating skin burns and have potential for regenerative treatment of other types of epithelial injuries. The undifferentiated phenotype is therefore important for success in both applications. This study aimed to optimize a method for one-week storage of CES for their widespread distribution and use in regenerative medicine. The effect of storage temperatures 4 °C, 8 °C, 12 °C, 16 °C, and 24 °C on CES was evaluated...
August 15, 2017: Scientific Reports
Rakibul Islam, Jon Roger Eidet, Reza A Badian, Marit Lippestad, Edward Messelt, May Griffith, Darlene A Dartt, Tor Paaske Utheim
Transplantation of cultured oral mucosal epithelial cells (OMECs) is a promising treatment strategy for limbal stem cell deficiency. In order to improve the culture method, we investigated the effects of four culture media and tissue harvesting sites on explant attachment, growth, and phenotype of OMECs cultured from Sprague-Dawley rats. Neither choice of media or harvesting site impacted the ability of the explants to attach to the culture well. Dulbecco's modified Eagle's medium/Ham's F12 (DMEM) and Roswell Park Memorial Institute 1640 medium (RPMI) supported the largest cellular outgrowth...
April 6, 2017: Scientific Reports
Ole-Johannes H N Grymyr, Jan O Beitnes, Jo Eidet, Stein Tølløfsrud, Arnt Fiane, Helge Skulstad, Erik Fosse, Per S Halvorsen
OBJECTIVES: Myocardial dysfunction may occur during weaning from cardiopulmonary bypass (CPB). Epicardial accelerometers have been shown to be useful in continuous monitoring of myocardial ischaemia during beating-heart surgery. We aimed to investigate whether an accelerometer can detect myocardial dysfunction during weaning from CPB. METHODS: In 23 patients undergoing isolated aortic valve replacement (AVR), a three-axis accelerometer was attached to the left ventricle and 3D velocity was calculated from the signals...
February 1, 2017: Interactive Cardiovascular and Thoracic Surgery
Kelly J Shields, Tom Eirik Mollnes, Jon Roger Eidet, Knut Mikkelsen, Sven M Almdahl, Barbara Bottazzi, Torstein Lyberg, Susan Manzi, Joseph M Ahearn, Ivana Hollan
PURPOSE: Inflammatory rheumatic diseases (IRD) are associated with accelerated coronary artery disease (CAD), which may result from both systemic and vascular wall inflammation. There are indications that complement may be involved in the pathogenesis of CAD in Systemic Lupus Erythematosus (SLE) and Rheumatoid Arthritis (RA). This study aimed to evaluate the associations between circulating complement and complement activation products with mononuclear cell infiltrates (MCI, surrogate marker of vascular inflammation) in the aortic media and adventitia in IRDCAD and non-IRDCAD patients undergoing coronary artery bypass grafting (CABG)...
2017: PloS One
Ida G Fostad, Jon R Eidet, Neil S Lagali, Darlene A Dartt, Sten Ræder, Edvard B Messelt, Tor P Utheim
The purpose of this work was to determine whether the morphology of the oral mucosa epithelium (OME) of patients with xerostomia differ from patients without xerostomia. In total, 34 patients with dry eye disease (DED) with or without xerostomia were examined at The Norwegian Dry Eye Disease Clinic with in vivo confocal microscopy of the lower lip. In addition, age- and gender-matched healthy controls (HC) were included. DED patients with xerostomia had a higher superficial to deep backscatter ratio compared with DED patients without xerostomia (p=0...
February 2017: Microscopy and Microanalysis
Bruno Laeng, Lise Mette Eidet, Unni Sulutvedt, Jaak Panksepp
This study evaluated whether music-induced aesthetic "chill" responses, which typically correspond to peak emotional experiences, can be objectively monitored by degree of pupillary dilation. Participants listened to self-chosen songs versus control songs chosen by other participants. The experiment included an active condition where participants made key presses to indicate when experiencing chills and a passive condition (without key presses). Chills were reported more frequently for self-selected songs than control songs...
August 2016: Consciousness and Cognition
Ayyad Z Khan, Tor P Utheim, Catherine J Jackson, Sjur Reppe, Torstein Lyberg, Jon R Eidet
Phenotype of cultured ocular epithelial transplants has been shown to affect clinical success rates following transplantation to the cornea. The purpose of this study was to evaluate the relationship between cell nucleus morphometry and phenotype in three types of cultured epithelial cells. This study provides knowledge for the development of a non-invasive method of determining the phenotype of cultured epithelium before transplantation. Cultured human conjunctival epithelial cells (HCjE), human epidermal keratinocytes (HEK), and human retinal pigment epithelial cells (HRPE) were analyzed by quantitative immunofluorescence...
June 2016: Microscopy and Microanalysis
Lara Pasovic, Jon R Eidet, Ole K Olstad, Dong F Chen, Torstein Lyberg, Tor P Utheim
PURPOSE: The development of a suitable storage method for retinal pigment epithelium (RPE) is necessary in the establishment of future RPE replacement therapy, and storage temperature has proven to be pivotal for cell survival. ARPE-19, a widely used model for RPE, has been shown to yield the greatest number of viable cells when stored at 16°C compared to other storage temperatures. In this study, we analyze the gene expression profile of cultured ARPE-19 cells after seven days of storage at different temperatures in an effort to predict the gene-level consequences of storage of RPE transplants...
January 2017: Current Eye Research
Jo Eidet, Gry Dahle, Jan F Bugge, Bjørn Bendz, Kjell A Rein, Lars Aaberge, Jon T Offstad, Erik Fosse, Svend Aakhus, Per S Halvorsen
OBJECTIVES: Transcatheter aortic valve implantation improves survival in patients with severe aortic stenosis who are ineligible for surgical valve replacement; however, not all patients benefit from the procedure. We endeavoured to identify these patients using intraoperative echocardiography and hypothesized that intraoperative left ventricular function in response to the acute afterload reduction during the procedure was related to long-term outcomes. METHODS: We prospectively included 64 patients who were scheduled for transcatheter aortic valve implantation and divided them into responders and non-responders based on their left ventricular intraoperative responses to the acute afterload reduction after valve deployment...
September 2016: Interactive Cardiovascular and Thoracic Surgery
Ida G Fostad, Jon R Eidet, Tor P Utheim, Sten Ræder, Neil S Lagali, Edvard B Messelt, Darlene A Dartt
The purpose of the study was to investigate if xerostomia (dry mouth) is associated with symptoms and signs of dry eye disease (DED). At the Norwegian Dry Eye Clinic, patients with symptomatic DED with different etiologies were consecutively included in the study. The patients underwent a comprehensive ophthalmological work-up and completed self-questionnaires on symptoms of ocular dryness (Ocular Surface Disease Index [OSDI] and McMonnies Dry Eye Questionnaire) and the Sjögren's syndrome (SS) questionnaire (SSQ)...
2016: PloS One
Tor Paaske Utheim, Rakibul Islam, Ida G Fostad, Jon R Eidet, Amer Sehic, Ole K Olstad, Darlene A Dartt, Edward B Messelt, May Griffith, Lara Pasovic
PURPOSE: Storage of cultured human oral keratinocytes (HOK) allows for transportation of cultured transplants to eye clinics worldwide. In a previous study, one-week storage of cultured HOK was found to be superior with regard to viability and morphology at 12°C compared to 4°C and 37°C. To understand more of how storage temperature affects cell phenotype, gene expression of HOK before and after storage at 4°C, 12°C, and 37°C was assessed. MATERIALS AND METHODS: Cultured HOK were stored in HEPES- and sodium bicarbonate-buffered Minimum Essential Medium at 4°C, 12°C, and 37°C for one week...
2016: PloS One
J R Eidet, S Reppe, L Pasovic, O K Olstad, T Lyberg, A Z Khan, I G Fostad, D F Chen, T P Utheim
Restoration of the retinal pigment epithelial (RPE) cells to prevent further loss of vision in patients with age-related macular degeneration represents a promising novel treatment modality. Development of RPE transplants, however, requires up to 3 months of cell differentiation. We explored whether the silk protein sericin can induce maturation of primary human retinal pigment epithelial (hRPE) cells. Microarray analysis demonstrated that sericin up-regulated RPE-associated transcripts (RPE65 and CRALBP). Upstream analysis identified the NF-κB pathway as one of the top sericin-induced regulators...
2016: Scientific Reports
Guro Grindheim, Jo Eidet, Gunnar Bentsen
BACKGROUND: The PiCCO system, based on transpulmonary thermodilution, is one of the few tools available for continuous hemodynamic monitoring in children. However, published data for some of the derived variables reveal indexed values that seem questionable. AIMS: The aim of this study was to collect data from hemodynamically normal children and compare these to existing reference values. Furthermore, we sought to explore if indexing some of the variables differently could improve the clinical application of the obtained values...
April 2016: Paediatric Anaesthesia
Jon Roger Eidet, Darlene A Dartt, Tor Paaske Utheim
The conjunctival epithelium plays an important role in ensuring the optical clarity of the cornea by providing lubrication to maintain a smooth, refractive surface, by producing mucins critical for tear film stability and by protecting against mechanical stress and infectious agents. A large number of disorders can lead to scarring of the conjunctiva through chronic conjunctival inflammation. For controlling complications of conjunctival scarring, surgery can be considered. Surgical treatment of symblepharon includes removal of the scar tissue to reestablish the deep fornix...
December 11, 2015: Journal of Functional Biomaterials
Jo Eidet, Gry Dahle, Jan Frederik Bugge, Bjørn Bendz, Kjell Arne Rein, Lars Aaberge, Jon Thomas Offstad, Erik Fosse, Svend Aakhus, Per Steinar Halvorsen
OBJECTIVES: Left ventricular function is expected to improve after transcatheter aortic valve implantation due to the acute reduction in afterload, but does not occur in all patients. We hypothesized that the immediate intraoperative response in systolic left ventricular longitudinal motion during the procedure could be a predictor of short-term outcome. METHODS: Sixty-four patients treated with transcatheter aortic valve implantation for severe aortic stenosis were included...
January 2016: Interactive Cardiovascular and Thoracic Surgery
Lara Pasovic, Jon Roger Eidet, Berit S Brusletto, Torstein Lyberg, Tor P Utheim
Purpose. Replacement of the diseased retinal pigment epithelium (RPE) with cells capable of performing the specialized functions of the RPE is the aim of cell replacement therapy for treatment of macular degenerative diseases. A storage method for RPE is likely to become a prerequisite for the establishment of such treatment. Herein, we analyze the effect of storage temperature on key functions of cultured RPE cells. Methods. Cultured ARPE-19 cells were stored in Minimum Essential Medium at 4°C, 16°C, and 37°C for seven days...
2015: Journal of Ophthalmology
Catherine Jackson, Jon R Eidet, Sjur Reppe, Hans Christian D Aass, Kim A Tønseth, Borghild Roald, Torstein Lyberg, Tor P Utheim
PURPOSE: Cultured epidermal cell sheets (CECS) are used in the treatment of large area burns to the body and have potential to treat limbal stem cell deficiency (LSCD) as shown in animal studies. Despite widespread use, storage options for CECS are limited. Short-term storage allows flexibility in scheduling surgery, quality control and improved transportation to clinics worldwide. Recent evidence points to the phenotype of cultured epithelial cells as a critical predictor of post-operative success following transplantation of CECS in burns and in transplantation of cultured epithelial cells in patients with LSCD...
June 2016: Current Eye Research
Rakibul Islam, Catherine Jackson, Jon R Eidet, Edward B Messelt, Rima Maria Corraya, Torstein Lyberg, May Griffith, Darlene A Dartt, Tor P Utheim
PURPOSE/AIMS: To assess the effect of storage temperature on the viability, phenotype, metabolism, and morphology of cultured human oral keratinocytes (HOK). MATERIALS AND METHODS: Cultured HOK cells were stored in HEPES- and sodium bicarbonate-buffered Minimum Essential Medium (MEM) at nine temperatures in approximately 4 °C increments from 4 °C to 37 °C for seven days. Cells were characterized for viability by calcein fluorescence, phenotype retention by immunocytochemistry, metabolic parameters (pH, glucose, lactate, and O2) within the storage medium by blood gas analysis, and morphology by scanning electron microscopy and light microscopy...
2015: PloS One
Oeygunn Utheim, Rakibul Islam, Torstein Lyberg, Borghild Roald, Jon Roger Eidet, Maria Fideliz de la Paz, Darlene A Dartt, Sten Raeder, Tor Paaske Utheim
AIM/PURPOSE OF THE STUDY: To develop a one-week storage method, without serum and xenobiotics, that would maintain cell viability, morphology, and phenotype of cultured human limbal epithelial sheets. MATERIALS AND METHODS: Human limbal explants were cultured on intact human amniotic membranes for two weeks. The sheets were stored in a hermetically sealed container at 23°C in either a serum-free medium with selected animal serum-derived compounds (Quantum 286) or a xenobiotic-free medium (Minimal Essential Medium) for 4 and 7 days...
2015: PloS One
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