Institutt for medisinsk biologi: Recent submissions
Now showing items 261-280 of 1200
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Anti-β2-glycoprotein I autoantibodies influence thrombin generation parameters via various mechanisms
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-06)Introduction<p> Antiphospholipid syndrome (APS) is a systemic autoimmune disease characterised by recurrent thrombotic events, pregnancy loss and thrombocytopenia and the presence of antiphospholipid antibodies (APL). The exact pathomechanism of APS is still unknown, thus we investigated the effect of anti-β2-glycoprotein I (anti-β2GPI) on thrombin generation in different plasma samples.<p> <p>Methods ... -
Drømmen om nye tenner
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021)Tannlegene vært opptatt av muligheten for å få dannet nye tenner lenge. Det har ført til et nøye studium av den embryonale tann- dannelsen for å kunne kopiere den eksperimentelt. Forskningen har imidlertid bare i liten grad kunnet anvende sine eksperimen- telle oppsett på mennesker, men har benyttet seg av dyr som mus, rotter, minigriser og hunder, enkelte ganger i kombinasjon med in vitro ... -
The soluble reticulophagy receptor CALCOCO1 is also a Golgiphagy receptor.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-24)Cellular stress response mechanisms typically increase organellar quantity and volume. To restore cellular homeostasis and organellar integrity, the surplus organelles are cleared by macroautophagy/autophagy, an intracellular process that shuttles cytoplasmic material to the lysosomes for degradation. The degradation is mediated by autophagy receptors that selectively link the degradable cargo to ... -
ATG9A protects the plasma membrane from programmed and incidental permeabilization.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-12)The integral membrane protein ATG9A plays a key role in autophagy. It displays a broad intracellular distribution and is present in numerous compartments, including the plasma membrane (PM). The reasons for the distribution of ATG9A to the PM and its role at the PM are not understood. Here, we show that ATG9A organizes, in concert with IQGAP1, components of the ESCRT system and uncover cooperation ... -
Improving translational research in sex-specific effects of comorbidities and risk factors in ischaemic heart disease and cardioprotection: Position paper and recommendations of the ESC Working Group on Cellular Biology of the Heart
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-02)Ischaemic heart disease (IHD) is a complex disorder and a leading cause of death and morbidity in both men and women. Sex, however, affects several aspects of IHD, including pathophysiology, incidence, clinical presentation, diagnosis as well as treatment and outcome. Several diseases or risk factors frequently associated with IHD can modify cellular signalling cascades, thus affecting ischaemia/reperfusion ... -
Opportunities and Challenges for Nanotherapeutics for the Aging Population
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-25)Nanotherapeutics utilize the properties of nanomaterials to alter the pharmacology of the drugs and therapies being transported, leading to changes in their biological disposition (absorption, distribution, cellular uptake, metabolism and elimination) and ultimately, their pharmacological effect. This provides an opportunity to optimize the pharmacology of drugs, particularly for those that are ... -
Mechanisms of Selective Autophagy
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-21)Selective autophagy is the lysosomal degradation of specific intracellular components sequestered into autophagosomes, late endosomes, or lysosomes through the activity of selective autophagy receptors (SARs). SARs interact with autophagy-related (ATG)8 family proteins via sequence motifs called LC3-interacting region (LIR) motifs in vertebrates and Atg8-interacting motifs (AIMs) in yeast and plants. ... -
SAMM50 is a receptor for basal piecemeal mitophagy and acts with SQSTM1/p62 in OXPHOS-induced mitophagy
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-18)Mitophagy, the clearance of surplus or damaged mitochondria or mitochondrial parts by autophagy, is important for maintenance of cellular homeostasis. Whereas knowledge on programmed and stress-induced mitophagy is increasing, much less is known about mechanisms of basal mitophagy. Recently, we identified SAMM50 (SAMM50 sorting and assembly machinery component) as a receptor for piecemeal degradation ... -
Exposure to Bioaerosols during Fish Processing on Board Norwegian Fishing Trawlers
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-10)Objectives - The main objective was to gain more knowledge on exposure to bioaerosols in the processing area on board fishing trawlers.<p> <p>Methods - Exposure sampling was carried out during the work shifts when processing fish in the processing area on board five deep-sea fishing trawlers (trawlers 1–5). Exposure samples were collected from 64 fishermen breathing zone and from stationary ... -
Classical and noncanonical functions of miRNAs in cancers
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-30)Alterations in microRNAs (miRNAs) expression are causative in the initiation and progression of human cancers. The molecular events responsible for the widespread differential expression of miRNAs in malignancy are exemplified by their location in cancer-associated genomic regions, epigenetic mechanisms, transcriptional dysregulation, chemical modifications and editing, and alterations in miRNA ... -
Metaproteomic profiling of fungal gut colonization in gnotobiotic mice
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-22)<b><p>Background</b> Eukaryotic microbes can modulate mammalian host health and disease states, yet the molecular contribution of gut fungi remains nascent. We previously showed that mice exclusively colonised with fungi displayed increased sensitivity to allergic airway inflammation and had fecal metabolite profiles similar to germ-free mice. This marginal effect on the host metabolome suggested ... -
Prediction of Ventricular Arrhythmias by QRS/QTc - Ratio in Citalopram or Escitalopram Intoxication
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-16)<b><p>Background:</b> The U.S. Food and Drug Administration (FDA) has stated that citalopram and escitalopram should not be used at daily doses above 40 mg/20 mg due to risk for development of fatal ventricular arrhythmias like torsade de pointes (TdP). Yet, supratherapeutic serum concentrations of citalopram are common and predicting patients at risk for TdP is of high clinical value. Accordingly, ... -
A novel lncRNA derived from an ultraconserved region: lnc- uc.147, a potential biomarker in luminal A breast cancer
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-13)The human genome contains 481 ultraconserved regions (UCRs), which are genomic stretches of over 200 base pairs conserved among human, rat, and mouse. The majority of these regions are transcriptionally active (T-UCRs), and several have been found to be differentially expressed in tumours. Some T-UCRs have been functionally characterized, but of those few have been associated to breast cancer (BC). ... -
Specific interactions between the alkaline protease of P. aeruginosa and its natural peptide inhibitor: ab initio molecular simulations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-16)Alkaline protease aeruginolysin (APR) is an important virulence factor in the evasion of the immune system by Pseudomonas aeruginosa (P. aeruginosa). The P. aeruginosa genome also encodes the highly potent and specifc APR peptide inhibitor (APRin). However, the structural reason for the signifcant inhibition has not been revealed. Using ab initio molecular simulations, we here investigated the ... -
Staphylococcus aureus bloodstream infections: Diverging trends of meticillin-resistant and meticillin-susceptible isolates, EU/EEA, 2005 to 2018
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-18)Background: Invasive infections caused by Staphylococcus aureus have high clinical and epidemiological relevance. It is therefore important to monitor the S. aureus trends using suitable methods. Aim: The study aimed to describe the trends of bloodstream infections (BSI) caused by meticillin-resistant S. aureus (MRSA) and meticillin-susceptible S. aureus (MSSA) in the European Union (EU) and the ... -
Heavy decline of the largest European Arctic Skua Stercorarius parasiticus colony: interacting effects of food shortage and predation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-24)Capsule: The number of breeding pairs of Europe’s largest Arctic Skua Stercorarius parasiticus colony at Slettnes, Norway, showed a dramatic decline of at least 50% over two decades, with food shortage in four years and increasing predation by Red Fox Vulpes vulpes leading to total breeding failure in five out of six recent study years.<p> Aims: To document the decline of Europe’s largest Arctic ... -
LTX-315-enabled, radiotherapy-boosted immunotherapeutic control of breast cancer by NK cells
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-10)LTX-315 is a nonameric oncolytic peptide in early clinical development for the treatment of solid malignancies. Preclinical and clinical evidence indicates that the anticancer properties of LTX-315 originate not only from its ability to selectively kill cancer cells, but also from its capacity to promote tumortargeting immune responses. Here, we investigated the therapeutic activity and immunological ... -
Impact of obesity-related inflammation on cardiac metabolism and function
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-10)This review focuses on the role of adipose tissue in obese individuals in the development of metabolic diseases, and their consequences for metabolic and functional derangements in the heart. The general idea is that the expansion of adipocytes during the development of obesity gives rise to unhealthy adipose tissue, characterized by low-grade inflammation and the release of proinflammatory ... -
Clinical characteristics, risk factors and outcomes in patients with severe COVID-19 registered in the International Severe Acute Respiratory and Emerging Infection Consortium WHO clinical characterisation protocol: a prospective, multinational, multicentre, observational study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-14)Due to the large number of patients with severe coronavirus disease 2019 (COVID-19), many were treated outside the traditional walls of the intensive care unit (ICU), and in many cases, by personnel who were not trained in critical care. The clinical characteristics and the relative impact of caring for severe COVID-19 patients outside the ICU is unknown. This was a multinational, multicentre, ... -
Risk of lower respiratory tract infections: a genome-wide association study with Mendelian randomization analysis in three independent European populations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-09)Objective: Lower respiratory tract infections (LRTIs) are a leading cause of morbidity and mortality worldwide. Few studies have previously investigated the genetic susceptibility and potential risk factors for LRTI. Methods: We used data from UK Biobank, HUNT, and FinnGen, to conduct a genome-wide association study (GWAS). Cases were subjects hospitalized with LRTI, and controls were subjects with ...