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Animal assisted disease therapy

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https://www.readbyqxmd.com/read/28398242/drug-induced-liver-injury-can-biomarkers-assist-rucam-in-causality-assessment
#1
REVIEW
Rolf Teschke, Johannes Schulze, Axel Eickhoff, Gaby Danan
Drug induced liver injury (DILI) is a potentially serious adverse reaction in a few susceptible individuals under therapy by various drugs. Health care professionals facing DILI are confronted with a wealth of drug-unrelated liver diseases with high incidence and prevalence rates, which can confound the DILI diagnosis. Searching for alternative causes is a key element of RUCAM (Roussel Uclaf Causality Assessment Method) to assess rigorously causality in suspected DILI cases. Diagnostic biomarkers as blood tests would be a great help to clinicians, regulators, and pharmaceutical industry would be more comfortable if, in addition to RUCAM, causality of DILI can be confirmed...
April 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28357477/wnt5a-is-elevated-in-heart-failure-and-affects-cardiac-fibroblast-function
#2
Aurelija Abraityte, Leif E Vinge, Erik T Askevold, Tove Lekva, Annika E Michelsen, Trine Ranheim, Katrine Alfsnes, Arnt Fiane, Svend Aakhus, Ida G Lunde, Christen P Dahl, Pål Aukrust, Geir Christensen, Lars Gullestad, Arne Yndestad, Thor Ueland
Wnt signaling is dysregulated in heart failure (HF) and may promote cardiac hypertrophy, fibrosis, and inflammation. Blocking the Wnt ligand Wnt5a prevents HF in animal models. However, the role of Wnt5a in human HF and its functions in cardiac cells remain unclear. Here, we investigated Wnt5a regulation in HF patients and its effects on primary mouse and human cardiac fibroblasts. Serum Wnt5a was elevated in HF patients and associated with hemodynamic, neurohormonal, and clinical measures of disease severity...
March 30, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28298263/a-proof-of-principle-simulation-for-closed-loop-control-based-on-preexisting-experimental-thalamic-dbs-enhanced-instrumental-learning
#3
Ching-Fu Wang, Shih-Hung Yang, Sheng-Huang Lin, Po-Chuan Chen, Yu-Chun Lo, Han-Chi Pan, Hsin-Yi Lai, Lun-De Liao, Hui-Ching Lin, Hsu-Yan Chen, Wei-Chen Huang, Wun-Jhu Huang, You-Yin Chen
Deep brain stimulation (DBS) has been applied as an effective therapy for treating Parkinson's disease or essential tremor. Several open-loop DBS control strategies have been developed for clinical experiments, but they are limited by short battery life and inefficient therapy. Therefore, many closed-loop DBS control systems have been designed to tackle these problems by automatically adjusting the stimulation parameters via feedback from neural signals, which has been reported to reduce the power consumption...
February 24, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28286105/animal-models-in-idiopathic-inflammatory-myopathies-how-to-overcome-a-translational-roadblock
#4
REVIEW
Ali Maisam Afzali, Tobias Ruck, Heinz Wiendl, Sven G Meuth
Idiopathic inflammatory myopathies (IIMs) encompass a heterogenic group of rare muscle diseases with common symptoms including muscle weakness and the presence of certain histological features. Since the pathogenesis remains unclear, therapeutic approaches in general comprise unspecific immunosuppression strategies that have been met with limited success. Therefore, a deeper understanding of the underlying pathophysiological mechanisms is critically required to assist in development of targeted therapies. Animal models have proven to be tremendously helpful in mechanistic studies and allow researchers to overcome the inevitable restrictions of human research...
March 7, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28241882/systematic-review-of-patient-factors-affecting-adipose-stem-cell-viability-and-function-implications-for-regenerative-therapy
#5
REVIEW
Jajini Varghese, Michelle Griffin, Afshin Mosahebi, Peter Butler
BACKGROUND: The applications for fat grafting have increased recently, within both regenerative and reconstructive surgery. Although fat harvesting, processing and injection techniques have been extensively studied and standardised, this has not had a big impact on the variability of outcome following fat grafting. This suggests a possible larger role of patient characteristics on adipocyte and adipose-derived stem cell (ADSC) viability and function. This systematic review aims to collate current evidence on the effect of patient factors on adipocyte and ADSC behaviour...
February 28, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28147365/measurement-of-fibrosis-in-crohn-s-disease-strictures-with-imaging-and-blood-biomarkers-to-inform-clinical-decisions
#6
REVIEW
Peter D R Higgins
BACKGROUND: Distinguishing fibrosis from inflammation in an intestinal stricture in Crohn's disease is quite difficult. The absence of signs of inflammation on CT or MRI does not prove the absence of inflammation, as most strictures have a mix of fibrosis and inflammation. Identifying refractory fibrosis and distinguishing the patients who will respond to anti-inflammatory therapy from those who will require surgery are important clinical requirements, and several new technologies in imaging and serum biomarkers are being applied to this problem...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28018848/mitochondrial-transfer-implications-for-assisted-reproductive-technologies
#7
REVIEW
A S Reznichenko, C Huyser, M S Pepper
The use of mitochondrial transfer as a clinic procedure is drawing closer to reality. Here we provide a detailed overview of mitochondrial transfer techniques - both established and recent - including pronuclear, spindle, ooplasmic and blastomere transfer. Reasons as to why some techniques are more suitable for the prevention of mitochondrial DNA disease than others, as well as the advantages and disadvantages of each methodology, are discussed. The possible clinical introduction of these techniques has raised concerns about the adverse effects they may have on resultant embryos and offspring...
December 2016: Applied & Translational Genomics
https://www.readbyqxmd.com/read/27959442/lung-cancer-gene-therapy-transferrin-and-hyaluronic-acid-dual-ligand-decorated-novel-lipid-carriers-for-targeted-gene-delivery
#8
Bin Zhang, Yueying Zhang, Dongmei Yu
To achieve lung cancer gene therapy, nanocarriers decorated with different ligands were used. Surface decoration and nanoparticulate system will assist in targeting the gene to specific cells and tissues, such as cancers and diseased organs. The aim of this research was to develop a dual ligand-decorated nanocarriers, which could target the tumor cells through receptor-mediated pathways to increase the uptake of genetic materials. Transferrin (Tf) and hyaluronic (HA) containing polyethylene glycol-distearoylphosphatidylethanolamine (Tf-PEG-DSPE and HA-PEG-DSPE) ligands were synthesized...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/27810365/treatment-of-parkinson-s-disease-in-rats-by-nrf2-transfection-using-mri-guided-focused-ultrasound-delivery-of-nanomicrobubbles
#9
Ling Long, Xiaodong Cai, Ruomi Guo, Ping Wang, Lili Wu, Tinghui Yin, Siyuan Liao, Zhengqi Lu
Parkinson's disease (PD) is a very common neurological disorder. However, effective therapy is lacking. Although the blood-brain-barrier (BBB) protects the brain, it prevents the delivery of about 90% of drugs and nucleotides into the brain, thereby hindering the development of gene therapy for PD. Magnetic resonance imaging (MRI)-guided focused ultrasound delivery of microbubbles enhances the delivery of gene therapy vectors across the BBB and improves transfection efficiency. In the present study, we delivered nuclear factor E2-related factor 2 (Nrf2, NFE2L2) contained in nanomicrobubbles into the substantia nigra of PD rats by MRI-guided focused ultrasound, and we examined the effect of Nrf2 over-expression in this animal model of PD...
January 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27667178/improvement-of-vascular-function-by-magnetic-nanoparticle-assisted-circumferential-gene-transfer-into-the-native-endothelium
#10
Sarah Vosen, Sarah Rieck, Alexandra Heidsieck, Olga Mykhaylyk, Katrin Zimmermann, Christian Plank, Bernhard Gleich, Alexander Pfeifer, Bernd K Fleischmann, Daniela Wenzel
Gene therapy is a promising approach for chronic disorders that require continuous treatment such as cardiovascular disease. Overexpression of vasoprotective genes has generated encouraging results in animal models, but not in clinical trials. One major problem in humans is the delivery of sufficient amounts of genetic vectors to the endothelium which is impeded by blood flow, whereas prolonged stop-flow conditions impose the risk of ischemia. In the current study we have therefore developed a strategy for the efficient circumferential lentiviral gene transfer in the native endothelium under constant flow conditions...
November 10, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27609634/online-cardiac-output-estimation-during-transvalvular-left-ventricular-assistance
#11
Daniel Rüschen, Miriam Rimke, Jonas Gesenhues, Steffen Leonhardt, Marian Walter
BACKGROUND AND OBJECTIVES: Sufficient cardiac output is one of the main goals of ventricular assist device therapy. To date, there is no adequate method to estimate the combined amount of blood the native heart and a continuous-flow assist device pump through the circulatory system. This paper presents an approach to estimate total cardiac output based on the signals provided by optical pressure sensors mounted on the inlet and outlet of an Abiomed Impella CP pump. METHODS: Two Kalman filters were used in parallel for joint estimation of the aortic flow rate and the hydraulic resistance of the aortic valve...
August 30, 2016: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/27439773/stem-cell-based-therapies-for-ischemic-stroke-preclinical-results-and-the-potential-of-imaging-assisted-evaluation-of-donor-cell-fate-and-mechanisms-of-brain-regeneration
#12
Pascal Gervois, Esther Wolfs, Jessica Ratajczak, Yörg Dillen, Tim Vangansewinkel, Petra Hilkens, Annelies Bronckaers, Ivo Lambrichts, Tom Struys
Stroke is the second most common cause of death and is a major cause of permanent disability. Given the current demographic trend of an ageing population and associated increased risk, the prevalence of and socioeconomic burden caused by stroke will continue to rise. Current therapies are unable to sufficiently ameliorate the disease outcome and are not applicable to all patients. Therefore, strategies such as cell-based therapies with mesenchymal stem cell (MSC) or induced pluripotent stem cell (iPSC) pave the way for new treatment options for stroke...
July 21, 2016: Medicinal Research Reviews
https://www.readbyqxmd.com/read/27383855/tickborne-coinfections-in-the-united-states
#13
James H Diaz
Unlike mosquitoes, ticks transmit the broadest range of pathogens, including bacteria, viruses, and parasites. Ticks have capitalized on many competitive advantages offered to them by changes in climate and human lifestyle and a greater abundance of wild animal reservoir hosts no longer effectively controlled. As a result, tick-transmitted coinfections are increasing today with both recognized and newly discovered pathogens that complicate differential diagnosis and antimicrobial treatment. Without the support of immunological and molecular diagnostic techniques, usually only available at federal and some state laboratories, the initial differential diagnosis of tickborne coinfections is complicated and antimicrobial therapy may not cover coinfections...
March 2016: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/27314367/diet-before-and-during-pregnancy-and-offspring-health-the-importance-of-animal-models-and-what-can-be-learned-from-them
#14
Pascale Chavatte-Palmer, Anne Tarrade, Delphine Rousseau-Ralliard
This review article outlines epidemiologic studies that support the hypothesis that maternal environment (including early nutrition) plays a seminal role in determining the offspring's long-term health and metabolism, known as the concept of Developmental Origins of Health and Diseases (DOHaD). In this context, current concerns are particularly focused on the increased incidence of obesity and diabetes, particularly in youth and women of child-bearing age. We summarize key similarities, differences and limitations of various animal models used to study fetal programming, with a particular focus on placentation, which is critical for translating animal findings to humans...
2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27279073/protective-effects-of-bmscs-in-combination-with-erythropoietin-in-bronchopulmonary-dysplasia-induced-lung-injury
#15
Zhao-Hua Zhang, Yan-Yan Pan, Rui-Sheng Jing, Yun Luan, Luan Zhang, Chao Sun, Feng Kong, Kai-Lin Li, Yi-Biao Wang
Bronchopulmonary dysplasia (BPD) is the most common type of chronic lung disease in infancy, for which no effective therapy is currently available. The aim of the present study was to investigate the effect of treatment with bone marrow mesenchymal stem cells (BMSCs) in combination with recombinant human erythropoietin (rHuEPO) on BPD‑induced mouse lung injury, and discuss the underlying mechanism. The BPD model was established by the exposure of neonatal mice to continuous high oxygen exposure for 14 days, following which 1x106 BMSCs and 5,000 U/kg rHuEPO were injected into the mice 1 h prior to and 7 days following exposure to hyperoxia...
August 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27138773/tickborne-coinfections-in-the-united-states
#16
James H Diaz Md
Unlike mosquitoes, ticks transmit the broadest range of pathogens, including bacteria, viruses, and parasites. Ticks have capitalized on many competitive advantages offered to them by changes in climate and human lifestyle and a greater abundance of wild animal reservoir hosts no longer effectively controlled. As a result, tick-transmitted coinfections are increasing today with both recognized and newly discovered pathogens that complicate differential diagnosis and antimicrobial treatment. Without the support of immunological and molecular diagnostic techniques, usually only available at federal and some state laboratories, the initial differential diagnosis of tickborne coinfections is complicated and antimicrobial therapy may not cover coinfections...
March 2016: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/27101372/diplomatic-assistance-can-helminth-modulated-macrophages-act-as-treatment-for-inflammatory-disease
#17
REVIEW
Svenja Steinfelder, Noëlle Louise O'Regan, Susanne Hartmann
Helminths have evolved numerous pathways to prevent their expulsion or elimination from the host to ensure long-term survival. During infection, they target numerous host cells, including macrophages, to induce an alternatively activated phenotype, which aids elimination of infection, tissue repair, and wound healing. Multiple animal-based studies have demonstrated a significant reduction or complete reversal of disease by helminth infection, treatment with helminth products, or helminth-modulated macrophages in models of allergy, autoimmunity, and sepsis...
April 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/26933042/strategies-and-challenges-to-myocardial-replacement-therapy
#18
REVIEW
Nicole T Feric, Milica Radisic
UNLABELLED: Cardiovascular diseases account for the majority of deaths globally and are a significant drain on economic resources. Although heart transplants and left-ventricle assist devices are the solution for some, the best chance for many patients who suffer because of a myocardial infarction, heart failure, or a congenital heart disease may be cell-based regenerative therapies. Such therapies can be divided into two categories: the application of a cell suspension and the implantation of an in vitro engineered tissue construct to the damaged area of the heart...
April 2016: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/26861550/preclinical-models-of-muscle-spasticity-valuable-tools-in-the-development-of-novel-treatment-for-neurological-diseases-and-conditions
#19
REVIEW
Anton Bespalov, Liudmila Mus, Edwin Zvartau
Poor validity of preclinical animal models is one of the most commonly discussed explanations for the failures to develop novel drugs in general and in neuroscience in particular. However, there are several areas of neuroscience such as injury-induced spasticity where etiological factor can be adequately recreated and models can focus on specific pathophysiological mechanisms that likely contribute to spasticity syndrome in humans (such as motoneuron hyperexcitability and spinal hyperreflexia). Methods used to study spasticity in preclinical models are expected to have a high translational value (e...
May 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/26621335/an-unexpected-cause-for-cavitary-pneumonia-and-empyema
#20
Constantine Bloch-Infanger, Katarzyna Furrer, Mark Wiese, Andreas Hiebinger, Christoph M Bucher, Sébastien Kopp, Vladimira Hinić, Daniel Goldenberger
Tularemia is an emerging zoonotic disease mainly of the Northern Hemisphere caused by the Gram-negative coccobacillus Francisella tularensis. It is affecting a wide range of animals and causes human disease after insect and tick bites, skin contact, ingestion and inhalation. A 66-year-old man presented to our clinic with cavitary pneumonia and distinct pleural effusion. After failure of empiric antibiotic therapy, thoracoscopic assisted decortication and partial excision of the middle lobe were conducted. Conventional culture methods and broad-range bacterial PCR including RipSeqMixed analysis were performed from the excised biopsies...
August 2016: Infection
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