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https://www.readbyqxmd.com/read/28212568/an-anthocyanin-rich-strawberry-extract-induces-apoptosis-and-ros-while-decreases-glycolysis-and-fibrosis-in-human-uterine-leiomyoma-cells
#1
Md Soriful Islam, Francesca Giampieri, Milijana Janjusevic, Massimiliano Gasparrini, Tamara Y Forbes-Hernandez, Luca Mazzoni, Stefania Greco, Stefano Raffaele Giannubilo, Andrea Ciavattini, Bruno Mezzetti, Franco Capocasa, Mario Castellucci, Maurizio Battino, Pasquapina Ciarmela
Uterine leiomyomas are highly prevalent benign tumors in reproductive aged women. Unfortunately, medical treatments are still limited and no preventive therapies have been developed. In the present study, we investigated the therapeutic effects of strawberry extract on uterine leiomyoma cells. Leiomyoma and myometrial cells were treated with strawberry (cultivar Alba) extract (250 μg/ml) for 48 h to measure apoptosis, reactive oxygen species (ROS), oxidative phosphorylation (OCR, oxygen consumption rate) and glycolysis (ECAR, extracellular acidification rate) as well as fibrosis associated gene and/or protein expression...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212462/climate-change-contaminant-interactions-in-marine-food-webs-towards-a-conceptual-framework
#2
Juan José Alava, William W L Cheung, Peter S Ross, Rashid U Sumaila
Climate change is reshaping the way in which contaminants move through the global environment, in large part by changing the chemistry of the oceans and affecting the physiology, health and feeding ecology of marine biota. Climate change-associated impacts on structure and function of marine food webs, with consequent changes in contaminant transport, fate and effects, is likely to have significant repercussions to those human populations that rely on fisheries resources for food, recreation or culture. Published studies on climate change-contaminant interactions with a focus on food web bioaccumulation were systematically reviewed to explore how climate change and ocean acidification may impact contaminant levels in marine food webs...
February 17, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28212416/the-variability-of-multisensory-processes-of-natural-stimuli-in-human-and-non-human-primates-in-a-detection-task
#3
Cécile Juan, Céline Cappe, Baptiste Alric, Benoit Roby, Sophie Gilardeau, Pascal Barone, Pascal Girard
BACKGROUND: Behavioral studies in both human and animals generally converge to the dogma that multisensory integration improves reaction times (RTs) in comparison to unimodal stimulation. These multisensory effects depend on diverse conditions among which the most studied were the spatial and temporal congruences. Further, most of the studies are using relatively simple stimuli while in everyday life, we are confronted to a large variety of complex stimulations constantly changing our attentional focus over time, a modality switch that can impact on stimuli detection...
2017: PloS One
https://www.readbyqxmd.com/read/28212410/a-high-throughput-genetic-screen-identifies-previously-uncharacterized-borrelia-burgdorferi-genes-important-for-resistance-against-reactive-oxygen-and-nitrogen-species
#4
Meghan E Ramsey, Jenny A Hyde, Diana N Medina-Perez, Tao Lin, Lihui Gao, Maureen E Lundt, Xin Li, Steven J Norris, Jon T Skare, Linden T Hu
Borrelia burgdorferi, the causative agent of Lyme disease in humans, is exposed to reactive oxygen and nitrogen species (ROS and RNS) in both the tick vector and vertebrate reservoir hosts. B. burgdorferi contains a limited repertoire of canonical oxidative stress response genes, suggesting that novel gene functions may be important for protection of B. burgdorferi against ROS or RNS exposure. Here, we use transposon insertion sequencing (Tn-seq) to conduct an unbiased search for genes involved in resistance to nitric oxide, hydrogen peroxide, and tertiary-butyl hydroperoxide in vitro...
February 17, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28212409/pathogenic-waterborne-free-living-amoebae-an-update-from-selected-southeast-asian-countries
#5
Mohamad Azlan Abdul Majid, Tooba Mahboob, Brandon G J Mong, Narong Jaturas, Reena Leeba Richard, Tan Tian-Chye, Anusorn Phimphila, Panomphanh Mahaphonh, Kyaw Nyein Aye, Wai Lynn Aung, Joon Chuah, Alan D Ziegler, Atipat Yasiri, Nongyao Sawangjaroen, Yvonne A L Lim, Veeranoot Nissapatorn
Data on the distribution of free-living amoebae is still lacking especially in Southeast Asian region. The aquatic environment revealed a high occurrence of free-living amoebae (FLA) due to its suitable condition and availability of food source, which subsequently causes infection to humans. A total of 94 water samples consisted of both treated and untreated from Laos (31), Myanmar (42), and Singapore (21) were investigated for the presence of pathogenic FLA. Each water sample was filtered and cultured onto non-nutrient agar seeded with live suspension of Escherichia coli and incubated at room temperature...
2017: PloS One
https://www.readbyqxmd.com/read/28212351/black-box%C3%A2-gastrointestinal%C3%A2-tract-needs%C3%A2-and%C3%A2-prospects%C3%A2-of%C3%A2-gaining%C3%A2-insights%C3%A2-of%C3%A2-fate%C3%A2-of%C3%A2-fat-%C3%A2-protein-%C3%A2-and%C3%A2-starch%C3%A2-in%C3%A2-case%C3%A2-of%C3%A2-exocrine%C3%A2-pancreatic%C3%A2-insufficiency%C3%A2-by%C3%A2-using%C3%A2-fistulated%C3%A2-pigs
#6
REVIEW
Anne Mößeler, Josef Kamphues
Exocrine pancreatic insufficiency (EPI) results in the maldigestion and malabsorption of nutrients. The digestive processes in humans and other monogastric species like rat and pig are characterized by a predominantly enzymatic digestion within the small intestine and microbial fermentation located in the hindgut. For protein, it is doctrine that only prececally absorbed amino acids can be transferred to the amino acid pool of the host, while postileal absorption of nitrogen-containing compounds occurs mainly in the form of ammonia, being a burden rather than a benefit for the organism...
February 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28212347/molecularly-imprinted-sol-gel-based-qcm-sensor-arrays-for-the-detection-and-recognition-of-volatile-aldehydes
#7
Chuanjun Liu, Bartosz Wyszynski, Rui Yatabe, Kenshi Hayashi, Kiyoshi Toko
The detection and recognition of metabolically derived aldehydes, which have been identified as important products of oxidative stress and biomarkers of cancers; are considered as an effective approach for early cancer detection as well as health status monitoring. Quartz crystal microbalance (QCM) sensor arrays based on molecularly imprinted sol-gel (MISG) materials were developed in this work for highly sensitive detection and highly selective recognition of typical aldehyde vapors including hexanal (HAL); nonanal (NAL) and bezaldehyde (BAL)...
February 16, 2017: Sensors
https://www.readbyqxmd.com/read/28212334/transfer-of-anti-rotavirus-antibodies-during-pregnancy-and-in-milk-following-maternal-vaccination-with-a-herpes-simplex-virus-type-1-amplicon-vector
#8
Anita F Meier, Mark Suter, Elisabeth M Schraner, Bruno M Humbel, Kurt Tobler, Mathias Ackermann, Andrea S Laimbacher
Rotaviruses (RVs) are important enteric pathogens of newborn humans and animals, causing diarrhea and in rare cases death, especially in very young individuals. Rotavirus vaccines presently used are modified live vaccines that lack complete biological safety. Previous work from our laboratory suggested that vaccines based on in situ produced, non-infectious rotavirus-like particles (RVLPs) are efficient while being entirely safe. However, using either vaccine, active mucosal immunization cannot induce protective immunity in newborns due to their immature immune system...
February 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28212331/analysis-of-epidermal-growth-factor-receptor-related-gene-expression-changes-in-a-cellular-and-animal-model-of-parkinson-s-disease
#9
In-Su Kim, Sushruta Koppula, Shin-Young Park, Dong-Kug Choi
We employed transcriptome analysis of epidermal growth factor receptor related gene expression changes in cellular and animal models of Parkinson's disease (PD). We used a well-known Parkinsonian toxin 1-methyl-4-phenylpyridine (MPP⁺) to induce neuronal apoptosis in the human neuroblastoma SH-SY5Y cell line. The MPP⁺-treatment of SH-SY5Y cells was capable of inducing neuro-apoptosis, but it remains unclear what kinds of transcriptional genes are affected by MPP⁺ toxicity. Therefore the pathways that were significantly perturbed in MPP⁺ treated human neuroblastoma SH-SY5Y cells were identified based on genome-wide gene expression data at two time points (24 and 48 h)...
February 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28212285/transcriptomic-analysis-reveals-selective-metabolic-adaptation-of-streptococcus-suis-to-porcine-blood-and-cerebrospinal-fluid
#10
Anna Koczula, Michael Jarek, Christian Visscher, Peter Valentin-Weigand, Ralph Goethe, Jörg Willenborg
Streptococcus suis is a zoonotic pathogen that can cause severe pathologies such as septicemia and meningitis in its natural porcine host as well as in humans. Establishment of disease requires not only virulence of the infecting strain but also an appropriate metabolic activity of the pathogen in its host environment. However, it is yet largely unknown how the streptococcal metabolism adapts to the different host niches encountered during infection. Our previous isotopologue profiling studies on S. suis grown in porcine blood and cerebrospinal fluid (CSF) revealed conserved activities of central carbon metabolism in both body fluids...
February 15, 2017: Pathogens
https://www.readbyqxmd.com/read/28212143/staphylococcus-aureus-infections-some-second-thoughts
#11
Willem J B van Wamel
PURPOSE OF REVIEW: Staphylococcus aureus (S. aureus) is well known for its ability to cause life-threatening infections. On the other hand, this bacterium can thrive as a commensal on and in human tissues without causing much problems. How big a threat is S. aureus actually? Furthermore, commensalism is associated with biofilms, where can we find them, and which natural and artificial components activate biofilm formation? RECENT FINDINGS: Recent findings on S. aureus carriage on skin, mucosa, and in wounds indicate the presence of large numbers of S...
February 15, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28212113/age-and-gender-dependency-of-physiological-networks-in-sleep
#12
Dagmar Krefting, Christoph Jansen, Thomas Penzel, Fang Han, Jan Kantelhardt
Recently, time delay stability analysis of biosignals has been successfully applied as a multivariate time series analysis method to assess the human physiological network in young adults. The degree of connectivity between different network nodes is described by the so-called link strength. Based on polysomnographic recordings (PSGs), it could be shown that the network changes with the sleep stage. Here, we apply the method to a large set of healthy controls spanning six decades of age. As it is well known, that the overall sleep architecture is dependent both on age and on gender, we particularly address the question, if these changes are also found in the network dynamics...
February 17, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28212080/improving-registration-robustness-for-image-guided-liver-surgery-in-a-novel-human-to-phantom-data-framework
#13
Jarrod Collins, Jared Weis, Jon Heiselman, Logan Clements, Amber Simpson, Willam Jarnagin, Michael Miga
In open image-guided liver surgery (IGLS), a sparse representation of the intraoperative organ surface can be acquired to drive image-to-physical registration. We hypothesize that uncharacterized error induced by variation in the collection patterns of organ surface data limits the accuracy and robustness of IGLS registration. Clinical validation of such registration methods is challenged due to the difficulty in obtaining data representative of the true state of organ deformation. We propose a novel human-to-phantom validation framework that transforms surface collection patterns from in vivo IGLS procedures (n=13) onto a well-characterized hepatic deformation phantom for the purpose of validating surface-driven, volumetric nonrigid registration methods...
February 13, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28211933/enhanced-bone-tissue-regeneration-using-a-3d-printed-microstructure-incorporated-with-a-hybrid-nano-hydrogel
#14
Dong Nyoung Heo, Nathan J Castro, Se-Jun Lee, Hanaul Noh, Wei Zhu, Lijie Grace Zhang
Three-dimensional (3D) functional constructs with biomimetic mechanical and chemical properties are ideal for various regenerative medicine applications. These properties of 3D fabricated constructs mainly depend on the intrinsic characteristics of the materials and fabrication method. In this respect, the current use of hydrogels for musculoskeletal tissue repair is not ideal due to the lack of suitable mechanical properties, as well as the high biomimetic requirement for success. To overcome this limitation, we developed a novel functionalized hydrogel with bioactive gold nanoparticles (GNPs), reinforcing a 3D printed microstructure via fused deposition modeling (FDM) for bone tissue regeneration...
February 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/28211918/myotonic-dystrophy-type-1-patient-derived-ipscs-for-the-investigation-of-ctg-repeat-instability
#15
Junko Ueki, Masayuki Nakamori, Masahiro Nakamura, Misato Nishikawa, Yoshinori Yoshida, Azusa Tanaka, Asuka Morizane, Masayoshi Kamon, Toshiyuki Araki, Masanori P Takahashi, Akira Watanabe, Nobuya Inagaki, Hidetoshi Sakurai
Myotonic dystrophy type 1 (DM1) is an autosomal-dominant multi-system disease caused by expanded CTG repeats in dystrophia myotonica protein kinase (DMPK). The expanded CTG repeats are unstable and can increase the length of the gene with age, which worsens the symptoms. In order to establish a human stem cell system suitable for the investigation of repeat instability, DM1 patient-derived iPSCs were generated and differentiated into three cell types commonly affected in DM1, namely cardiomyocytes, neurons and myocytes...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211823/symptom-severity-and-life-satisfaction-in-brain-injury-the-mediating-role-of-disability-acceptance-and-social-self-efficacy
#16
Nicole Ditchman, Connie Sung, Amanda B Easton, Kristina S Johnson, Elisabeth Batchos
BACKGROUND: Although the negative impact of symptom severity on subjective well-being outcomes has been established among individuals with brain injury, the mediating and protective role that positive human traits might have on this relationship has not been adequately explored. OBJECTIVE: The purpose of this study was to examine the impact of social self-efficacy and disability acceptance on the relationship between symptom severity and life satisfaction among individuals with brain injury...
February 15, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28211486/motor-phenotype-is-not-associated-with-vascular-dysfunction-in-symptomatic-huntington-s-disease-transgenic-r6-2-160-cag-mice
#17
A Di Pardo, A Carrizzo, A Damato, S Castaldo, E Amico, L Capocci, M Ambrosio, F Pompeo, C De Sanctis, C C Spinelli, A A Puca, P Remondelli, V Maglione, C Vecchione
Whereas Huntington's disease (HD) is unequivocally a neurological disorder, a critical mass of emerging studies highlights the occurrence of peripheral pathology like cardiovascular defects in both animal models and humans. The overt impairment in cardiac function is normally expected to be associated with peripheral vascular dysfunction, however whether this assumption is reasonable or not in HD is still unknown. In this study we functionally characterized the vascular system in R6/2 mouse model (line 160 CAG), which recapitulates several features of human pathology including cardiac disease...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211263/increased-regurgitant-flow-causes-endocardial-cushion-defects-in-an-avian-embryonic-model-of-congenital-heart-disease
#18
Stephanie M Ford, Matthew T McPheeters, Yves T Wang, Pei Ma, Shi Gu, James Strainic, Christopher Snyder, Andrew M Rollins, Michiko Watanabe, Michael W Jenkins
BACKGROUND: The relationship between changes in endocardial cushion and resultant congenital heart diseases (CHD) has yet to be established. It has been shown that increased regurgitant flow early in embryonic heart development leads to endocardial cushion defects, but it remains unclear how abnormal endocardial cushions during the looping stages might affect the fully septated heart. The goal of this study was to reproducibly alter blood flow in vivo and then quantify the resultant effects on morphology of endocardial cushions in the looping heart and on CHDs in the septated heart...
February 17, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28211215/zkscan1-gene-and-its-related-circular-rna-circzkscan1-both-inhibit-hepatocellular-carcinoma-cell-growth-migration-and-invasion-but-through-different-signaling-pathways
#19
Zhicheng Yao, Jingyan Luo, Kunpeng Hu, Jizong Lin, He Huang, Qiangliang Wang, Peng Zhang, Zhiyong Xiong, Zejian Huang, Chonghua He, Bo Liu, Yang Yang
There is increasing evidence that circular RNAs (circRNAs) are involved in cancer development, but the regulation and function of human circRNAs remain largely unknown. In this study, we demonstrated that ZKSCAN1, a zinc finger family gene, is expressed in both linear and circular (circZKSCAN1) forms of RNA in human hepatocellular carcinoma (HCC) tissues and cell lines. Here, we analyzed a cohort of 102 patients and found that expression of both ZKSCAN1 mRNA and circZKSCAN1 was significantly lower (P<0.05) in the HCC samples compared with that in matched adjacent non-tumorous tissues by reverse transcription PCR (RT-PCR)...
February 16, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28211084/endothelial-cells-biophysical-biochemical-and-chromosomal-aberrancies-in-high-glucose-condition-within-the-diabetic-range
#20
Aysa Rezabakhsh, Elahe Nabat, Mina Yousefi, Soheila Montazersaheb, Omid Cheraghi, Amir Mehdizadeh, Farzaneh Fathi, Ali Akbar Movassaghpour, Nasrin Maleki-Dizaji, Reza Rahbarghazi, Alireza Garjani
To date, many studies have been conducted to find out the underlying mechanisms of hyperglycemia-induced complications in diabetes mellitus, attributed to the cellular pathologies of different cells-especially endothelial cells. However, there are still many ambiguities and unresolved issues to be clarified. Here, we investigated the alteration in biophysical and biochemical properties in human umbilical vein endothelial cells exposed to a high-glucose concentration (30mM), comparable to glucose content in type 2 diabetes mellitus, over a course of 120 hours...
February 17, 2017: Cell Biochemistry and Function
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