Publications by authors named "Kofoed J"

Background: Offspring of parents with a mental disorder are at high risk of a range of adverse outcomes, highlighting the need for preventive interventions. However, a comprehensive overview of the beneficial and harmful effects of preventive interventions for parents with mental disorders on offspring outcomes are uncertain. The main objective of this systematic review will be to assess the effects of preventive interventions versus any control intervention for parents with a mental disorder on offspring outcomes.

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Background:  Surgeons routinely apply papaverine, lidocaine, or verapamil to produce acute vasodilation and prevent vasospasms during microvascular surgeries. There is evidence that topical vasodilators may induce postoperative endothelial and smooth muscle dysfunction, which would present after the acute vasodilatory effects of the topical drugs wear off. Therefore, the purpose of the current study was to evaluate the lasting effects of papaverine, lidocaine, and verapamil on human deep inferior epigastric perforator artery vasodilatory function after the acute effects of the topical drugs had worn off.

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Background: Postpartum depression (PPD) affects 30-50% of women with a history of previous depression or bipolar disorder and 8% of women with no history of depression. Negative cognitive biases in the perception of infant cues and difficulties with emotion regulation are replicated risk factors. Current interventions focus on detecting and treating rather than preventing PPD.

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Responses to exercise at a given percentage of one's maximum rate of oxygen consumption (V̇o), or percentage of the power associated with V̇o during a graded exercise test (i.e., P), vary.

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Background and Objectives: Muscle blood flow is impeded during resistance exercise contractions, but immediately increases during recovery. The purpose of this study was to determine the impact of brief bouts of rest (2 s) between repetitions of resistance exercise on muscle blood flow and exercise tolerance. Materials and Methods: Ten healthy young adults performed single-leg knee extension resistance exercises with no rest between repetitions (i.

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Article Synopsis
  • Three conserved neuropeptides (NPY, peptide YY, and pancreatic polypeptide) interact with four G protein-coupled receptors, influencing processes like food intake and memory retention.
  • The study reveals the structures of the Y receptors in complex with the neuropeptides and G protein, showing how the peptides bind differently depending on the receptor type.
  • The findings highlight specific interactions between the receptors and peptides, which can aid in creating selective drugs targeting these pathways.
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Peptides are notoriously known to display very short in vivo half-lives often measured in minutes which in many cases greatly reduces or eliminates sufficient in vivo efficacy. To obtain long half-lives allowing for up to once-weekly dosing regimen, fatty acid acylation (lipidation) have been used to non-covalently associate the peptide to serum albumin thus serving as a circulating depot. This approach is generally considered in the scientific and patent community as a standard approach to protract almost any given peptide.

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Purpose: While maximum blood flow influences one's maximum rate of oxygen consumption (V̇O max), with so many indices of vascular function, it is still unclear if vascular function is related to V̇O max in healthy, young adults. The purpose of this study was to determine if several common vascular tests of conduit artery and resistance artery function provide similar information about vascular function and the relationship between vascular function and V̇O max.

Methods: Twenty-two healthy adults completed multiple assessments of leg vascular function, including flow-mediated dilation (FMD), reactive hyperemia (RH), passive leg movement (PLM), and rapid onset vasodilation (ROV).

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Chimerism analysis following hematopoietic stem cell transplantation (HSCT) for leukemia is routinely applied in parallel with quantification of minimal residual disease (MRD) to identify imminent relapse. In the past decades, new methods with a lower limit of detection compared to standard methods have been developed, so-called microchimerism analysis. Microchimerism analysis is fast, simple, applicable across pre-HSCT disease-type and can be applied on peripheral blood allowing frequent testing during follow-up.

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In recent years peptide YY (PYY) has attracted attention within the area of diabetes and obesity due to its involvement in food intake regulation and glucose homeostasis. It is well-known that PYY is rapidly cleaved by dipeptidyl peptidase-4 to the more Y receptor selective analogue PYY, which is further cleaved to the inactive analogue PYY. In order to improve the selectivity and proteolytic stability of the C-terminus, we synthesized several analogues incorporating N-methyl amino acids or β-homo amino acids and other non-natural amino acids.

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Peptide agonists acting on the glucagon-like peptide 1 receptor (GLP-1R) promote glucose-dependent insulin release and therefore represent important therapeutic agents for type 2 diabetes (T2D). Previous data indicated that an N-terminal type II β-turn motif might be an important feature for agonists acting on the GLP-1R. In contrast, recent publications reporting the structure of the full-length GLP-1R have shown the N-terminus of receptor-bound agonists in an α-helical conformation.

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Peptide YY 3-36-amide (PYY3-36) is a peptide hormone, which is known to decrease appetite and food-intake by activation of the Y2 receptor. The current studies were designed to identify the metabolites of PYY3-36 in mini-pig and rhesus monkey. Plasma samples were analyzed by high resolution LC-MS (and MS/MS) in order to unambiguously identify the metabolites of PYY3-36.

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Article Synopsis
  • Liraglutide is an analogue of GLP-1 used for treating diabetes and obesity; the study aimed to create a once-weekly version with better stability and albumin affinity.
  • Semaglutide was identified as the best candidate, modified with two amino acid changes and a specific derivation to enhance its effectiveness.
  • Compared to liraglutide, semaglutide has a lower GLP-1R affinity but greater albumin affinity, leading to a longer plasma half-life and is currently undergoing phase 3 clinical tests.
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The electrocardiographic (ECG) findings in patients with pulmonary embolism (PE) and no previous cardiopulmonary disease are well documented; however, investigation of the relation of ECG abnormalities to right ventricular (RV) enlargement has been limited. The purpose of the present investigation was to assess further the relation of ECG changes in acute PE to RV cavity enlargement (dilation). The records of patients hospitalized from January 2009 to December 2012 with acute PE and no previous cardiopulmonary disease were reviewed.

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Fluorescence screening of a 96-membered SPOT library of histidine containing dendritic and linear peptides revealed the remarkable esterolytic activity of short histidine oligomers that show catalytic proficiencies within one order of magnitude of histidine-containing esterase peptide dendrimers.

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Background: The majority of individuals who perform damage control surgery in the military arena are trained in civilian venues. Therefore, it is important to compare and contrast damage control performed in civilian and military settings. In contrast to civilian trauma, which is primarily caused by blunt injury and addressed at one or two surgical facilities, combat casualties primarily sustain explosion-related injuries and undergo treatment at multiple levels of care across continents.

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Reacting a 65,536 member combinatorial library of octapeptides on TentaGel beads with various proteases followed by selective staining of the free amino termini at the reacted bead surface and sequence determination by amino acid analysis allowed the rapid identification of protease substrates.

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Herein we describe an algorithm for designing combinatorial peptide libraries for split-and-mix synthesis on solid support that are decodable by amino acid analysis (AAA) of the beads. AAA is a standard service analysis available in most biochemical laboratories, and it allows one to control the quality of the peptide on each bead, an important feature that is missing from most library decoding protocols. In the algorithm, each AA is assigned to two variable positions in the sequence grouped in a "unique pair".

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This paper investigates effects of combining thermal and biological remediation, based on laboratory studies of trichloroethene (TCE) degradation. Aquifer material was collected 6 months after terminating a full-scale Electrical Resistance Heating (ERH), when the site had cooled from approximately 100 degrees C to 40 degrees C. The aquifer material was used to construct bioaugmented microcosms amended with the mixed anaerobic dechlorinating culture, KB-1(TM), and an electron donor (5 mM lactate).

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Peptide dendrimers were investigated as synthetic models for aldolase enzymes. Combinatorial libraries were prepared with aldolase active residues such as lysine and proline placed at the dendrimer core or near the surface. On-bead selection for aldolase activity was carried out using the dye-labelled 1,3-diketone 1a, suitable for covalent trapping of enamine-reactive side-chains, and the fluorogenic enolization probe 6.

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The aldol reaction of acetone with aldehydes in aqueous medium under catalysis by zinc-proline (Zn(L-Pro)2) and secondary amines such as proline, (2S,4R)-4-hydroxyproline (Hyp) and (S)-(+)-1-(2-pyrrolidinomethyl)pyrrolidine (PMP) is shown to proceed by an enamine mechanism, as evidenced by reductive trapping of the iminium intermediate, while the aldol reaction of dihydroxyacetone (DHA) under catalysis by zinc-proline and by general bases such as N-methylmorpholine (NMM) is shown to occur under rate-limiting deprotonation of the alpha-carbon and formation of an enolate intermediate.

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Dendrimers are regular tree-like macromolecules accessible by chemical synthesis from a variety of building blocks. Their topology enforces a globular shape that offers a unique opportunity to design artificial enzymes. Catalytic groups such as metal complexes and cofactors can be placed at the dendrimer core to exploit microenvironment and selectivity effects of the dendritic shell.

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Zn-proline catalyzed aldolisation of glycoladehyde gave mainly tetroses whereas in the cross-aldolisation of glycoladehyde and rac-glyceraldehyde, pentoses accounted for 60% of the sugars formed with 20% of ribose.

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Zn-proline catalyzes the aldolisation of unprotected glycolaldehyde in water to give tetroses and hexoses; threose (33% of the product mixture) was formed with 10% enantiomeric excess of the D-isomer.

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