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https://www.readbyqxmd.com/read/28320091/animal-models-for-assessing-the-impact-of-natural-products-on-the-aetiology-and-metabolic-pathophysiology-of-type-2-diabetes
#1
REVIEW
Md Asrafuzzaman, Yingnan Cao, Rizwana Afroz, Danielle Kamato, Susan Gray, Peter J Little
Type 2 diabetes mellitus is a complex and heterogeneous disorder which in its most common manifestation arises from insulin resistance and later insulin insufficiency. Type 2 diabetes is characterised by impaired insulin sensitivity and diagnosed as hyperglycaemia. Because of its cardiovascular consequences, Type 2 diabetes represents one of the world's leading causes of mortality and morbidity. Drug discovery and development are required to produce better ways to prevent, treat and manage diabetes and its complications...
March 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28318170/-application-of-saliva-in-disease-diagnosis
#2
Cheng Xingqun, Zhou Xuedong, Xu Xin
Saliva is secreted by salivary glands and performs a variety of functions, including mouth cleaning and protection, antibacterial activity, and digestion. With the rapid progress in salivaomics, saliva became recognized as a potential pool of biological markers. Being a non-invasive and safe source, saliva is a potential substitute for blood in diagnosis and prognosis of diseases. This review summarizes the latest advancement in saliva-related studies and presents the potential value of saliva in early diagnosis of oral diseases, such as dental caries, periodontal disease, cancer, diabetes, and other systemic disorders...
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28316123/the-msc-adhesion-cascade-insights-into-homing-and-transendothelial-migration
#3
Franziska Nitzsche, Claudia Müller, Barbara Lukomska, Jukka Jolkkonen, Alexander Deten, Johannes Boltze
Mesenchymal stem cells (MSC) are promising candidates for adult cell therapies in regenerative medicine. To fully exert their potential, efficient homing and migration towards lesion sites plays an important role. Local transplantation deposits MSC in spatial proximity to the lesion, but often requires invasive procedures. Systemic administration routes are favored, but require the targeted extravasation of the circulating MSC at the site of injury. Transplanted MSC can indeed leave the blood flow and transmigrate through the endothelial barrier, and reach the lesion site...
March 18, 2017: Stem Cells
https://www.readbyqxmd.com/read/28315694/incorporation-of-autopsy-case-based-learning-into-phd-graduate-education-a-novel-approach-to-bridging-the-bench-to-bedside-gap
#4
Erin G Brooks, Joanne M Thornton, Erik A Ranheim, Zsuzsanna Fabry
Given the current rapid expansion of biological knowledge and the challenges of translating that knowledge into clinical practice, finding effective methods of teaching graduate students clinical medicine concepts has become even more critical. The utility of autopsy in medical student and resident education has been well-established. Multiple studies have reported it to be a helpful means of teaching anatomy, pathophysiology, clinical problem-solving skills, and medical diagnostic techniques. While various models of training Ph...
March 15, 2017: Human Pathology
https://www.readbyqxmd.com/read/28315377/patient-derived-xenografts-a-platform-for-accelerating-translational-research-in-prostate-cancer
#5
Alastair H Davies, Yuzhuo Wang, Amina Zoubeidi
Recently, there has been renewed interest in the development and characterization of patient-derived tumour xenograft (PDX) models. Numerous PDX models have been established for prostate cancer and, importantly, retain the principal molecular, genetic, and histological characteristics of the donor tumour. As such, these models provide significant improvements over standard cell line xenograft models for biological studies, preclinical drug development, and personalized medicine strategies. This review summarizes the current state of the art in this field, illustrating the opportunities and limitations of PDX models in translational prostate cancer research...
March 14, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28306741/pre-hospital-midazolam-for-benzodiazepine-treated-seizures-before-and-after-the-rapid-anticonvulsant-medication-prior-to-arrival-trial-a-national-observational-cohort-study
#6
Eytan Shtull-Leber, Robert Silbergleit, William J Meurer
BACKGROUND: Implementation of evidence-based treatment for pre-hospital status epilepticus can improve outcomes. We hypothesized that publication of a pivotal pre-hospital clinical trial (RAMPART), demonstrating superiority of intramuscular midazolam over intravenous lorazepam, altered the national utilization rates of midazolam for pre-hospital benzodiazepine-treated seizures, while upholding its safety and efficacy outside the trial setting. METHODS AND FINDINGS: This is a retrospective, observational cohort study of pre-hospital patient encounters throughout the United States in the National Emergency Medicine Services Information System database, from January 2010 through December 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28303465/pharmacotherapy-in-generalized-anxiety-disorder-novel-experimental-medicine-models-and-emerging-drug-targets
#7
REVIEW
David S Baldwin, Ruihua Hou, Robert Gordon, Nathan T M Huneke, Matthew Garner
Many pharmacological and psychological approaches have been found efficacious in patients with generalized anxiety disorder (GAD), but many treatment-seeking patients will not respond and others will relapse despite continuing with interventions that initially had beneficial effects. Other patients will respond but then stop treatment early because of untoward effects such as sexual dysfunction, drowsiness, and weight gain. There is much scope for the development of novel approaches that could have greater overall effectiveness or acceptability than currently available interventions or that have particular effectiveness in specific clinical subgroups...
March 16, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28302184/cytokine-free-directed-differentiation-of-human-pluripotent-stem-cells-efficiently-produces-hemogenic-endothelium-with-lymphoid-potential
#8
Yekaterina Galat, Svetlana Dambaeva, Irina Elcheva, Aaruni Khanolkar, Kenneth Beaman, Philip M Iannaccone, Vasiliy Galat
BACKGROUND: The robust generation of human hematopoietic progenitor cells from induced or embryonic pluripotent stem cells would be beneficial for multiple areas of research, including mechanistic studies of hematopoiesis, the development of cellular therapies for autoimmune diseases, induced transplant tolerance, anticancer immunotherapies, disease modeling, and drug/toxicity screening. Over the past years, significant progress has been made in identifying effective protocols for hematopoietic differentiation from pluripotent stem cells and understanding stages of mesodermal, endothelial, and hematopoietic specification...
March 17, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28302035/translational-multimodality-neuroimaging
#9
Sushil K Sharma
Recently high-resolution, noninvasive, multimodality in-vivo molecular imaging with PET, SPECT, CT and MRI, employing fusion algorithms has revolutionized personalized medicine. However, specific radiopharmaceuticals (RPs) for the accurate diagnosis and effective treatment of progressive neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, drug addiction, and other cognitive impairments still remain in developmental phase. Currently, multimodality fusion neuroimaging is utilized for the determination of: pharmacokinetics and pre-clinical development of radiopharmaceuticals (RPs); in-vivo monitoring of stem cell transplantation therapy; nicotinic acetylcholine receptors (nAChRs) investigations; and regional cerebral blood flow and glucose metabolism in cognitively-impaired subjects employing noninvasive microPET and nano-SPECT imaging...
March 15, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28301736/epigenetic-regulation-a-new-frontier-for-biomedical-engineers
#10
Zhen Chen, Shuai Li, Shankar Subramaniam, John Y-J Shyy, Shu Chien
Gene expression in mammalian cells depends on the epigenetic status of the chromatin, including DNA methylation, histone modifications, promoter-enhancer interactions, and noncoding RNA-mediated regulation. The coordinated actions of these multifaceted regulations determine cell development, cell cycle regulation, cell state and fate, and the ultimate responses in health and disease. Therefore, studies of epigenetic modulations are critical for our understanding of gene regulation mechanisms at the molecular, cellular, tissue, and organ levels...
March 6, 2017: Annual Review of Biomedical Engineering
https://www.readbyqxmd.com/read/28299357/integrating-functional-genomics-to-accelerate-mechanistic-personalized-medicine
#11
Jeffrey W Tyner
The advent of deep sequencing technologies has resulted in the deciphering of tremendous amounts of genetic information. These data have led to major discoveries, and many anecdotes now exist of individual patients whose clinical outcomes have benefited from novel, genetically guided therapeutic strategies. However, the majority of genetic events in cancer are currently undrugged, leading to a biological gap between understanding of tumor genetic etiology and translation to improved clinical approaches. Functional screening has made tremendous strides in recent years with the development of new experimental approaches to studying ex vivo and in vivo drug sensitivity...
March 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28299158/a-study-on-strategic-planning-and-procurement-of-medicals-in-uganda-s-regional-referral-hospitals
#12
Ishak Kamaradi Masembe
This study was an analysis of the effect of strategic planning on procurement of medicals in Uganda's regional referral hospitals (RRH's). Medicals were defined as essential medicines, medical devices and medical equipment. The Ministry of Health (MOH) has been carrying out strategic planning for the last 15 years via the Health Sector Strategic Plans. Their assumption was that strategic planning would translate to strategic procurement and consequently, availability of medicals in the RRH's. However, despite the existence of these plans, there have been many complaints about expired drugs and shortages in RRH's...
December 31, 2016: Journal of Public Health in Africa
https://www.readbyqxmd.com/read/28298516/precision-medicine-in-breast-cancer
#13
Teresa G Odle
Breast cancer care has improved markedly in recent decades, but new advancements in diagnosis and treatment depend on translating genomics and precision medicine into clinical care. This article discusses the basics of genomics, breast cancer biomarkers and subtypes, and the effects of genomic advancements on future breast cancer diagnosis, treatment, and survival. The article also presents challenges related to introducing precision medicine into cancer care and the role of imaging in breast cancer diagnosis and treatment in precision medicine...
March 2017: Radiologic Technology
https://www.readbyqxmd.com/read/28298075/inducing-cell-proliferative-prevention-in-human-acute-promyelocytic-leukemia-by-mir-182-inhibition-through-modulation-of-casp9-expression
#14
Mahdi Fasihi-Ramandi, Abbas Moridnia, Ali Najafi, Mohammadreza Sharifi
MicroRNAs (miRNAs) are one class of endogenous non-coding RNAs that involved in post-transcriptional regulation of the gene. MiRNAs through interaction with messenger RNA (mRNA) involved in several biological processes such as cell cycle, differentiation, growth, metabolism, aging and apoptosis. MiRNAs may act as an oncogene or a tumor suppressor via up or down regulation in cancerous cells. MiR-182 located in a miR-183/-96/-182 cluster, this is the highly conserved cluster to have an important role in cancer development and tumorigenesis...
March 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28297588/oncostatin-m-preconditioned-mesenchymal-stem-cells-alleviate-bleomycin-induced-pulmonary-fibrosis-through-paracrine-effects-of-the-hepatocyte-growth-factor
#15
Ying-Wei Lan, Si-Min Theng, Tsung-Teng Huang, Kong-Bung Choo, Chuan-Mu Chen, Han-Pin Kuo, Kowit-Yu Chong
Mesenchymal stem cells (MSCs) are widely considered for treatment of pulmonary fibrosis based on the anti-inflammatory, antifibrotic, antiapoptotic, and regenerative properties of the cells. Recently, elevated levels of oncostatin M (OSM) have been reported in the bronchoalveolar lavage fluid of a pulmonary fibrosis animal model and in patients. In this work, we aimed to prolong engrafted MSC survival and to enhance the effectiveness of pulmonary fibrosis transplantation therapy by using OSM-preconditioned MSCs...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28297587/efficiently-specified-ventral-midbrain-dopamine-neurons-from-human-pluripotent-stem-cells-under-xeno-free-conditions-restore-motor-deficits-in-parkinsonian-rodents
#16
Jonathan C Niclis, Carlos W Gantner, Walaa F Alsanie, Stuart J McDougall, Chris R Bye, Andrew G Elefanty, Edouard G Stanley, John M Haynes, Colin W Pouton, Lachlan H Thompson, Clare L Parish
Recent studies have shown evidence for the functional integration of human pluripotent stem cell (hPSC)-derived ventral midbrain dopamine (vmDA) neurons in animal models of Parkinson's disease. Although these cells present a sustainable alternative to fetal mesencephalic grafts, a number of hurdles require attention prior to clinical translation. These include the persistent use of xenogeneic reagents and challenges associated with scalability and storage of differentiated cells. In this study, we describe the first fully defined feeder- and xenogeneic-free protocol for the generation of vmDA neurons from hPSCs and utilize two novel reporter knock-in lines (LMX1A-eGFP and PITX3-eGFP) for in-depth in vitro and in vivo tracking...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28297586/the-cleavage-effect-of-mesenchymal-stem-cell-and-its-derived-matrix-metalloproteinase-2-on-extracellular-%C3%AE-synuclein-aggregates-in-parkinsonian-models
#17
Se Hee Oh, Ha Na Kim, Hyun Jung Park, Jin Young Shin, Dong Yeol Kim, Phil Hyu Lee
Ample evidence has suggested that extracellular α-synuclein aggregates would play key roles in the pathogenesis and progression of Parkinsonian disorders (PDs). In the present study, we investigated whether mesenchymal stem cells (MSCs) and their derived soluble factors could exert neuroprotective effects via proteolysis of extracellular α-synuclein. When preformed α-synuclein aggregates were incubated with MSC-conditioned medium, α-synuclein aggregates were disassembled, and insoluble and oligomeric forms of α-synuclein were markedly decreased, thus leading to a significant increase in neuronal viability...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28297585/electromechanical-conditioning-of-adult-progenitor-cells-improves-recovery-of-cardiac-function-after-myocardial-infarction
#18
Aida Llucià-Valldeperas, Carolina Soler-Botija, Carolina Gálvez-Montón, Santiago Roura, Cristina Prat-Vidal, Isaac Perea-Gil, Benjamin Sanchez, Ramon Bragos, Gordana Vunjak-Novakovic, Antoni Bayes-Genis
Cardiac cells are subjected to mechanical and electrical forces, which regulate gene expression and cellular function. Therefore, in vitro electromechanical stimuli could benefit further integration of therapeutic cells into the myocardium. Our goals were (a) to study the viability of a tissue-engineered construct with cardiac adipose tissue-derived progenitor cells (cardiac ATDPCs) and (b) to examine the effect of electromechanically stimulated cardiac ATDPCs within a myocardial infarction (MI) model in mice for the first time...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28297584/improvement-of-in-vitro-three-dimensional-cartilage-regeneration-by-a-novel-hydrostatic-pressure-bioreactor
#19
Jie Chen, Zhaoyuan Yuan, Yu Liu, Rui Zheng, Yao Dai, Ran Tao, Huitang Xia, Hairong Liu, Zhiyong Zhang, Wenjie Zhang, Wei Liu, Yilin Cao, Guangdong Zhou
In vitro three-dimensional (3D) cartilage regeneration is a promising strategy for repair of cartilage defects. However, inferior mechanical strength and tissue homogeneity greatly restricted its clinical translation. Simulation of mechanical stress through a bioreactor is an important approach for improving in vitro cartilage regeneration. The current study developed a hydrostatic pressure (HP) bioreactor based on a novel pressure-transmitting mode achieved by slight deformation of a flexible membrane in a completely sealed stainless steel device...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28297583/assessment-of-drug-sensitivity-in-hematopoietic-stem-and-progenitor-cells-from-acute-myelogenous-leukemia-and-myelodysplastic-syndrome-ex-vivo
#20
Katherine L B Knorr, Laura E Finn, B Douglas Smith, Allan D Hess, James M Foran, Judith E Karp, Scott H Kaufmann
Current understanding suggests that malignant stem and progenitor cells must be reduced or eliminated for prolonged remissions in myeloid neoplasms such as acute myelogenous leukemia (AML) or myelodysplastic syndrome (MDS). Multicolor flow cytometry has been widely used to distinguish stem and myeloid progenitor cells from other populations in normal and malignant bone marrow. In this study, we present a method for assessing drug sensitivity in MDS and AML patient hematopoietic stem and myeloid progenitor cell populations ex vivo using the investigational Nedd8-activating enzyme inhibitor MLN4924 and standard-of-care agent cytarabine as examples...
March 2017: Stem Cells Translational Medicine
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