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| 4. |
- Dogan, Soner, et al.
(författare)
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Roles of adiponectin and leptin signaling-related micrornas in the preventive effects of calorie restriction in mammary tumor development
- 2021
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Ingår i: Applied Physiology, Nutrition and Metabolism. - : Canadian Science Publishing. - 1715-5312 .- 1715-5320. ; 46:8, s. 866-876
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Tidskriftsartikel (refereegranskat)abstract
- Calorie restriction (CR) is suggested to prevent the development of mammary tumors (MTs); however, the mechanism remains to be clarified. We aimed to determine the microRNA (miRNA) profile in mice applied to 2 different CR protocols; chronic (CCR) and intermittent (ICR) and follow the MT development. In addition, the roles of miRNAs involved in adiponectin and/or leptin signaling pathways were investigated. Mice were divided into 3 groups: ad-libitum (AL), CCR, or ICR, which comprised 3 weeks of AL feeding followed by 1 week of 60% CR in a cyclic manner. Blood and tissue collection were performed at weeks 10, 17/18, 49/50 and 81/82. Long-term CCR provided better protection compared with ICR for MT development with a delay in the MT occurrence. Adiponectin expression in mammary fat pad were significantly higher in CCR group compared with AL. Using GeneChip Array, 250 of 3195 miRNAs were differentially expressed among the dietary groups. Thirteen of 250 miRNAs were related to adiponectin and/or leptin signaling genes. Results were verified by reverse transcription polymerase chain reaction. Specifically, miR-326-3p, miR-500-3p and miR-129-5p, which are related to adiponectin and/or leptin signaling, may play important roles in the preventive effects of CR in MT development and in ageing. Thus, these miRNAs might be putative biomarkers to target for diagnostic and treatment purposes. Novelty: Type of CR and micro RNA interaction is related to ageing. miR-326-3p, miR-500-3p and miR-129-5p expression levels were differentially expressed in MT development and in ageing. The genes associated with adiponectin and/or leptin signaling pathways are regulated by certain miRNAs in the protective effects of CR.
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- Robinson, Jonathan, 1986, et al.
(författare)
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An atlas of human metabolism
- 2020
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Ingår i: Science Signaling. - : American Association for the Advancement of Science (AAAS). - 1945-0877 .- 1937-9145. ; 13:624
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Tidskriftsartikel (refereegranskat)abstract
- Genome-scale metabolic models (GEMs) are valuable tools to study metabolism and provide a scaffold for the integrative analysis of omics data. Researchers have developed increasingly comprehensive human GEMs, but the disconnect among different model sources and versions impedes further progress. We therefore integrated and extensively curated the most recent human metabolic models to construct a consensus GEM, Human1. We demonstrated the versatility of Human1 through the generation and analysis of cell- and tissue-specific models using transcriptomic, proteomic, and kinetic data. We also present an accompanying web portal, Metabolic Atlas (https://www.metabolicatlas.org/), which facilitates further exploration and visualization of Human1 content. Human1 was created using a version-controlled, open-source model development framework to enable community-driven curation and refinement. This framework allows Human1 to be an evolving shared resource for future studies of human health and disease.
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- Simundic, Ana-Maria, et al.
(författare)
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Compliance of blood sampling procedures with the CLSI H3-A6 guidelines : an observational study by the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM) working group for the preanalytical phase (WG-PRE)
- 2015
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Ingår i: Clinical Chemistry and Laboratory Medicine. - : Walter de Gruyter. - 1434-6621 .- 1437-4331. ; 53:9, s. 1321-1331
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Tidskriftsartikel (refereegranskat)abstract
- Background: An observational study was conducted in 12 European countries by the European Federation of Clinical Chemistry and Laboratory Medicine Working Group for the Preanalytical Phase (EFLM WG-PRE) to assess the level of compliance with the CLSI H3-A6 guidelines. Methods: A structured checklist including 29 items was created to assess the compliance of European phlebotomy procedures with the CLSI H3-A6 guideline. A risk occurrence chart of individual phlebotomy steps was created from the observed error frequency and severity of harm of each guideline key issue. The severity of errors occurring during phlebotomy was graded using the risk occurrence chart. Results: Twelve European countries participated with a median of 33 (18-36) audits per country, and a total of 336 audits. The median error rate for the total phlebotomy procedure was 26.9 % (10.6-43.8), indicating a low overall compliance with the recommended CLSI guideline. Patient identification and test tube labelling were identified as the key guideline issues with the highest combination of probability and potential risk of harm. Administrative staff did not adhere to patient identification procedures during phlebotomy, whereas physicians did not adhere to test tube labelling policy. Conclusions: The level of compliance of phlebotomy procedures with the CLSI H3-A6 guidelines in 12 European countries was found to be unacceptably low. The most critical steps in need of immediate attention in the investigated countries are patient identification and tube labelling.
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| 7. |
- Simundic, Ana-Maria, et al.
(författare)
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Joint EFLM-COLABIOCLI recommendation for venous blood sampling
- 2018
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Ingår i: Clinical Chemistry and Laboratory Medicine. - Berlin : Walter de Gruyter. - 1434-6621 .- 1437-4331. ; 56:12, s. 2015-2038
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Tidskriftsartikel (refereegranskat)abstract
- This document provides a joint recommendation for venous blood sampling of the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM) Working Group for Preanalytical Phase (WG-PRE) and Latin American Working Group for Preanalytical Phase (WG-PRE-LATAM) of the Latin America Confederation of Clinical Biochemistry (COLABIOCLI). It offers guidance on the requirements for ensuring that blood collection is a safe and patient-centered procedure and provides practical guidance on how to successfully overcome potential barriers and obstacles to its widespread implementation. The target audience for this recommendation are healthcare staff members directly involved in blood collection. This recommendation applies to the use of a closed blood collection system and does not provide guidance for the blood collection with an open needle and syringe and catheter collections. Moreover, this document neither addresses patient consent, test ordering, sample handling and transport nor collection from children and unconscious patients. The recommended procedure is based on the best available evidence. Each step was graded using a system that scores the quality of the evidence and the strength of the recommendation. The process of grading was done at several face-to-face meetings involving the same mixture of stakeholders stated previously. The main parts of this recommendation are: 1) Pre-sampling procedures, 2) Sampling procedure, 3) Post-sampling procedures and 4) Implementation. A first draft of the recommendation was circulated to EFLM members for public consultation. WG-PRE-LATAM was also invited to comment the document. A revised version has been sent for voting on to all EFLM and COLABIOCLI members and has been officially endorsed by 33/40 EFLM and 21/21 COLABIOCLI members. We encourage professionals throughout Europe and Latin America to adopt and implement this recommendation to improve the quality of blood collection practices and increase patient and workers safety.
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| 8. |
- Simundic, Ana-Maria, et al.
(författare)
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Raccomandazione congiunta EFLM-COLABIOCLI per il prelievo di sangue venoso : [Joint EFLM-COLABIOCLI recommendation for venous blood sampling]
- 2019
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Ingår i: Biochimica Clinica. - 0393-0564 .- 0392-7091. ; 43:2, s. 204-227
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Forskningsöversikt (refereegranskat)abstract
- This document provides a joint recommendation for venous blood sampling of the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM) Working Group for Preanalytical Phase (WG-PRE) and Latin American Working Group for Preanalytical Phase (WG-PRE-LATAM) of the Latin America Confederation of Clinical Biochemistry (COLABIOCLI). It offers guidance on the requirements for ensuring that blood collection is a safe and patient-centered procedure and provides practical guidance on how to successfully overcome potential barriers and obstacles to its widespread implementation. The target audience for this recommendation are healthcare staff members directly involved in blood collection. This recommendation applies to the use of a closed blood collection system and does not provide guidance for the blood collection with an open needle and syringe and catheter collections. Moreover, this document neither addresses patient consent, test ordering, sample handling and transport nor collection from children and unconscious patients. The recommended procedure is based on the best available evidence. Each step was graded using a system that scores the quality of the evidence and the strength of the recommendation. The process of grading was done at several face-to-face meetings involving the same mixture of stakeholders stated previously. The main parts of this recommendation are: 1) Pre-sampling procedures, 2) Sampling procedure, 3) Postsampling procedures and 4) Implementation. A first draft of the recommendation was circulated to EFLM members for public consultation. WG-PRE-LATAM was also invited to comment the document. A revised version has been sent for voting on to all EFLM and COLABIOCLI members and has been officially endorsed by 33/40 EFLM and 21/21 COLABIOCLI members. We encourage professionals throughout Europe and Latin America to adopt and implement this recommendation to improve the quality of blood collection practices and increase patient and workers safety.
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| 9. |
- Simundic, Ana-Maria, et al.
(författare)
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Recomandarea comună EFLM-COLABIOCLI pentru recoltarea sângelui venos - v 1.1, iunie 2018 : [Joint EFLM-COLABIOCLI recommendation for venous blood sampling - v 1.1, June 2018]
- 2024
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Ingår i: Revista Romana de Medicina de Laborator. - : Sciendo. - 1841-6624. ; 32:1, s. 9-32
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Tidskriftsartikel (refereegranskat)abstract
- Acest document oferă o recomandare comună a Federației Europene de Chimie Clinică și Medicină de Laborator (EFLM), Grupu-lui de lucru pentru faza preanalitică (WG-PRE) și Grupului de lucru din America Latină pentru Faza preanalitică (WG-PRE-LATAM) al Confederației Americii Latine de Biochimie Clinică (COLABIOCLI) pentru recoltarea sângelui venos. Documentul oferă îndrumări asupra cerințelor pentru asigurarea faptului că procedura de recoltare a sângelui este una sigură, centrată pe pacient și oferă îndrumări practice despre cum să fie depășite cu succes potențiale bariere și obstacole în calea difuzării și implementării ei.Publicul țintă pentru această recomandare este personalul medical implicat direct în procesul de recoltare a sângelui. Aceastăre comandare se aplică în cazul utilizării unui sistem închis de recoltare a sângelui și nu oferă recomandări pentru recoltare asângelui cu seringi și catetere în sistem deschis. Mai mult, acest document nu abordează obținerea consimțământului pacientului, solicitarea testelor, manipularea și transportul probelor și nici recoltarea de la copii și pacienții inconștienți. Procedura recomandată se bazează pe cele mai bune dovezi disponibile. Fiecare pas a fost evaluat folosind un sistem care punctează calitatea dovezilor și puterea recomandării. Procesul de evaluare a fost realizat la mai multe întâlniri față în față implicând aceleași părți interesate menționate anterior. Principalele părți ale acestei recomandări sunt: 1) Proceduri de pre-recoltare, 2) Procedura de recoltare, 3) Proceduri de post-recoltare şi 4) Implementarea. O primă schiță a recomandării a fost transmisă membrilor EFLM pentru consultare publică. A fost invitat și WG-PRE-LATAM pentru a comenta documentul. O versiune revizuită a fost trimisă spre vot tuturor membrilor EFLM și COLABIOCLI și a fost aprobată oficial de 33 dintre cei 40 de membri EFLM și toți membri COLABIOCLI. Încurajăm profesioniștii din toată Europa şi America Latină să adopte şi să implementeze această recomandare pentru a îmbunătăți calitatea practicilor de recoltare a sângelui și creșterea siguranței pacientului și personalului medical.
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| 14. |
- Koh, Ilsoo, et al.
(författare)
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The effect of water on the mechanical properties of soluble and insoluble ceramic cements
- 2015
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Ingår i: Journal of The Mechanical Behavior of Biomedical Materials. - : Elsevier. - 1751-6161 .- 1878-0180. ; 51, s. 50-60
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Tidskriftsartikel (refereegranskat)abstract
- Ceramic cements are good candidates for the stabilization of fractured bone due to their potential ease of application and biological advantages. New formulations of ceramic cements have been tested for their mechanical properties, including strength, stiffness, toughness and durability. The changes in the mechanical properties of a soluble cement (calcium sulfate) upon water-saturation (saturation) was reported in our previous study, highlighting the need to test ceramic cements using saturated samples. It is not clear if the changes in the mechanical properties of ceramic cements are exclusive to soluble cements. Therefore the aim of the present study was to observe the changes in the mechanical properties of soluble and insoluble ceramic cements upon saturation. A cement with high solubility (calcium sulfate dihydrate, CSD) and a cement with low solubility (dicalcium phosphate dihydrate, DCPD) were tested. Three-point bending tests were performed on four different groups of: saturated CSD, non-saturated CSD, saturated DCPD, and non-saturated DCPD samples. X-ray diffraction analysis and scanning electron microscopy were also performed on a sample from each group. Flexural strength, effective flexural modulus and flexural strain at maximum stress, lattice volume, and crystal sizes and shape were compared, independently, between saturated and non-saturated groups of CSD and DCPD. Although material dissolution did not occur in all cases, all calculated mechanical properties decreased significantly in both CSD and DCPD upon saturation. The results indicate that the reductions in the mechanical properties of saturated ceramic cements are not dependent on the solubility of a ceramic cement. The outcome raised the importance of testing any implantable ceramic cements in saturated condition to estimate its in vivo mechanical properties. (C) 2015 Elsevier Ltd. All rights reserved.
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| 16. |
- Popovic, Marko B., et al.
(författare)
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Practice Problems
- 2019
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Ingår i: Biomechatronics. ; , s. 567-604
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Selected practice problems in the format of numerical problems, concept questions, and case studies are presented in this chapter. Each problem is labeled with an estimated level of difficulty and list of most relevant chapters. Solutions and hints for about half of these problems are provided in the following chapter.
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| 17. |
- Wang, Hao, 1975, et al.
(författare)
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Genome-scale metabolic network reconstruction of model animals as a platform for translational research
- 2021
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Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 118:30
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Tidskriftsartikel (refereegranskat)abstract
- Genome-scale metabolic models (GEMs) are used extensively for analysis of mechanisms underlying human diseases and metabolic malfunctions. However, the lack of comprehensive and high-quality GEMs for model organisms restricts translational utilization of omics data accumulating from the use of various disease models. Here we present a unified platform of GEMs that covers five major model animals, including Mouse1 (Mus musculus), Rat1 (Rattus norvegicus), Zebrafish1 (Danio rerio), Fruitfly1 (Drosophila melanogaster), and Worm1 (Caenorhabditis elegans). These GEMs represent the most comprehensive coverage of the metabolic network by considering both orthology-based pathways and species-specific reactions. All GEMs can be interactively queried via the accompanying web portal Metabolic Atlas. Specifically, through integrative analysis of Mouse1 with RNA-sequencing data from brain tissues of transgenic mice we identified a coordinated up-regulation of lysosomal GM2 ganglioside and peptide degradation pathways which appears to be a signature metabolic alteration in Alzheimer’s disease (AD) mouse models with a phenotype of amyloid precursor protein overexpression. This metabolic shift was further validated with proteomics data from transgenic mice and cerebrospinal fluid samples from human patients. The elevated lysosomal enzymes thus hold potential to be used as a biomarker for early diagnosis of AD. Taken together, we foresee that this evolving open-source platform will serve as an important resource to facilitate the development of systems medicines and translational biomedical applications.
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