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https://www.readbyqxmd.com/read/29781178/the-effects-of-platelet-rich-plasma-on-hypertrophic-scars-fibroblasts
#1
Seung Min Nam, Yong Bae Kim
We hypothesised that a feedback mechanism of the transforming growth factor (TGF)-β1 signalling pathway, triggered by high-level TGF-β1, activates platelet-rich plasma (PRP) release to reduce connective tissue growth factor (CTGF) production and expression of CTGF mRNA in hypertrophic scar dermal fibroblasts. Primary dermal fibroblasts were isolated from cultures of hypertrophic scars. Cells were cultured after addition of serum-free Dulbecco's modified Eagle's medium supplemented with 5% (wt/vol) PRP or platelet-poor plasma (PPP)...
May 21, 2018: International Wound Journal
https://www.readbyqxmd.com/read/29773074/enhanced-cellulase-production-in-trichoderma-reesei-rut-c30-via-constitution-of-minimal-transcriptional-activators
#2
Jiajia Zhang, Guoxiu Zhang, Wei Wang, Wei Wang, Dongzhi Wei
BACKGROUND: Cellulase can convert lignocellulosic feedstocks into fermentable sugars, which can be used for the industrial production of biofuels and chemicals. The high cost of cellulase production remains a challenge for lignocellulose breakdown. Trichoderma reesei RUT C30 serves as a well-known industrial workhorse for cellulase production. Therefore, the enhancement of cellulase production by T. reesei RUT C30 is of great importance. RESULTS: Two sets of novel minimal transcriptional activators (DBDace2 -VP16 and DBDcre1 -VP16) were designed and expressed in T...
May 17, 2018: Microbial Cell Factories
https://www.readbyqxmd.com/read/29768476/treatment-with-specific-soluble-factors-promotes-the-functional-maturation-of-transcription-factor-mediated-pancreatic-transdifferentiated-cells
#3
Hiroaki Motoyama, Akira Kobayashi, Takahide Yokoyama, Akira Shimizu, Hiroshi Sakai, Tsuyoshi Notake, Kentaro Fukushima, Shin-Ichi Miyagawa
Pancreatic lineage-specific transcription factors (TFs) display instructive roles in converting adult cells to endocrine pancreatic cells through a process known as transdifferentiation. However, little is known about potential factors capable of accelerating transdifferentiation following transduction to achieve the functional maturation of transdifferentiated cells. In this study, we demonstrated, using adult liver-derived progenitor cells, that soluble factors utilized in pancreatic differentiation protocols of pluripotent stem cells promote functional maturation of TFs-mediated transdifferentiated cells...
2018: PloS One
https://www.readbyqxmd.com/read/29761862/cellular-stress-and-apoptosis-contribute-to-the-pathogenesis-of-autism-spectrum-disorder
#4
Daoyin Dong, Horst Ronald Zielke, David Yeh, Peixin Yang
The molecular pathogenesis of autism spectrum disorder, a neurodevelopmental disorder, is still elusive. In this study, we investigated the possible roles of endoplasmic reticulum (ER) stress, oxidative stress, and apoptosis as molecular mechanisms underlying autism. This study compared the activation of ER stress signals (protein kinase R-like endoplasmic reticulum kinase [PERK], activating transcription factor 6 [ATF6], inositol-requiring enzyme 1 alpha [IRE1α]) in different brain regions (prefrontal cortex, hippocampus, cerebellum) in subjects with autism and in age-matched controls...
May 15, 2018: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/29751281/efficient-production-of-erythroid-megakaryocytic-and-myeloid-cells-using-single-cell-derived-ipsc-colony-differentiation
#5
Marten Hansen, Eszter Varga, Cathelijn Aarts, Tatjana Wust, Taco Kuijpers, Marieke von Lindern, Emile van den Akker
Hematopoietic differentiation of human induced pluripotent stem cells (iPSCs) provide opportunities not only for fundamental research and disease modelling/drug testing but also for large-scale production of blood effector cells for future clinical application. Although there are multiple ways to differentiate human iPSCs towards hematopoietic lineages, there is a need to develop reproducible and robust protocols. Here we introduce an efficient way to produce three major blood cell types using a standardized differentiation protocol that starts with a single hematopoietic initiation step...
April 28, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29747507/biological-profiling-based-systematic-analysis-of-rhizoma-coptidis-from-different-growing-regions-and-its-anti-cholesterol-biosynthesis-activity-on-hepg2-cells
#6
Juan Feng, Haoxun Li, Wenlong Zhao, Honglei Dang, Ruijun Wang, Kun Luo, Hongyan Guo, Wanli Xing, Jing Cheng, Weifang Song, Yimin Sun, Lan Xie
Rhizoma Coptidis is a widely cultivated traditional Chinese herb. Although the chemical profiles of Rhizoma Coptidis have been established previously, the biological profiling of Rhizoma Coptidis has not been conducted yet. In this study, we collected Rhizoma Coptidis varieties from four distinct growing regions and performed genome-wide biological response fingerprinting (BioReF) on HepG2 cells using a gene expression array. Similar biological pathways were affected by extracts of all four Rhizoma Coptidis varieties but not by their analogue, Mahoniae Caulis...
May 11, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29741190/effects-of-nutritional-state-aging-and-high-chronic-intake-of-sucrose-on-brain-protein-synthesis-in-rats-modulation-of-it-by-rutin-and-other-micronutrients
#7
Eva Gatineau, Stéphanie Cluzet, Stéphanie Krisa, Isabelle Papet, Carole Migne, Didier Remond, Dominique Dardevet, Sergio Polakof, Tristan Richard, Laurent Mosoni
Little is still known about brain protein synthesis. In order to increase our knowledge of it, we aimed to modulate brain protein synthesis rates through aging, variations in nutritional state (fed state vs. fasted state), high sucrose diet and micronutrient supplementation. Four groups of 16 month-old male rats were fed for five months with a diet containing either 13% or 62% sucrose (wheat starch was replaced with sucrose), supplemented or not with rutin (5 g kg-1 diet), vitamin E (4×), A (2×), D (5×), selenium (10×) and zinc (+44%) and compared with an adult control group...
May 9, 2018: Food & Function
https://www.readbyqxmd.com/read/29730709/lysine-supplement-benefits-the-growth-performance-protein-synthesis-and-muscle-development-of-megalobrama-amblycephala-fed-diets-with-fish-meal-replaced-by-rice-protein-concentrate
#8
Wan-Cun Cai, Wen-Bin Liu, Guang-Zhen Jiang, Kai-Zhou Wang, Cun-Xin Sun, Xiang-Fei Li
This study aimed to investigate the effects of lysine supplement on the growth performance of blunt snout bream Megalobrama amblycephala fed diets with fish meal (FM) replaced by rice protein concentrate (RPC) with the potential mechanisms characterized. Fish were fed three diets, including the FM diet (containing FM), the RPC diet (FM replaced by RPC), and the MRPC diet (the RPC diet supplemented with lysine) for 8 weeks. Weight gain, protein efficiency ratio, and nitrogen and energy utilization of fish fed the FM diet were all significantly higher than those of the RPC treatment, but they showed no statistical difference with those of the MRPC group...
May 5, 2018: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29725353/enhancement-of-lipid-metabolism-and-hepatic-stability-in-fat-induced-obese-mice-by-fermented-cucurbita-moschata-extract
#9
Md Akil Hossain, Seung-Jin Lee, Na-Hye Park, Biruk Tesfaye Birhanu, Abraham Fikru Mechesso, Ji-Yong Park, Eun-Jin Park, Sam-Pin Lee, Sun-Joo Youn, Seung-Chun Park
The aim of this study was to evaluate the potentials of fermented Cucurbita moschata extract (FCME) in the treatment of obesity and nonalcoholic fatty liver disease (NAFLD). Five-week-old male C57BL/6 mice were assigned to 6 groups and treated for 8 weeks by feeding the normal diet (ND) and high fat diet (HFD) with and without FCME. Changes in body weight gain and consumption of feed and water were recorded. Major organs, adipose tissues, and blood samples were collected after the experimental period. The serum lipid profile, histological features of liver and adipose tissues, and mRNA expression of different adipogenic/lipogenic genes from liver tissue were evaluated...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29720835/combination-of-garcinia-cambogia-extract-and-pear-pomace-extract-additively-suppresses-adipogenesis-and-enhances-lipolysis-in-3t3-l1-cells
#10
Kushal Sharma, Siwon Kang, Dalseong Gong, Sung-Hwa Oh, Eun-Young Park, Min-Ho Oak, Eunyoung Yi
Background: Inhibition of adipogenesis has been a therapeutic target for reducing obesity and obesity-related disorders such as diabetes, hypertension, atherosclerosis, and cancer. For decades, anti-adipogenic potential of many herbal extracts has been investigated. One example is Garcinia cambogia extract (GE) containing (-)-hydroxycitric acid as an active ingredient. GE is currently marketed as a weight loss supplement, used alone or with other ingredients. Pear pomace extract (PE), another natural product, has been also shown to have anti-adipogenic activity in a recent report...
April 2018: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29717416/lowbush-cranberry-acts-through-daf-16-foxo-signaling-to-promote-increased-lifespan-and-axon-branching-in-aging-posterior-touch-receptor-neurons
#11
Courtney Scerbak, Elena Vayndorf, Alicia Hernandez, Colin McGill, Barbara Taylor
Medicinal berries are appreciated for their health benefits, in traditional ecological knowledge and nutrition science. Determining the cellular mechanisms underlying the effects of berry supplementation may contribute to our understanding of aging. Here, we report that lowbush cranberry (Vaccinium vitis-idaea) treatment causes marked nuclear localization of the central aging-related transcription factor DAF-16/FOXO in aged Caenorhabditis elegans. Further, functional DAF-16 is required for the lifespan extension, improved mechanosensation, and posterior touch receptor neuron morphological changes induced by lowbush cranberry treatments...
May 1, 2018: GeroScience
https://www.readbyqxmd.com/read/29714638/mechanisms-behind-pyrroloquinoline-quinone-supplementation-on-skeletal-muscle-mitochondrial-biogenesis-possible-synergistic-effects-with-exercise
#12
Paul Hwang, Darryn S Willoughby
There is clear evidence that endurance exercise training elicits intramuscular adaptations that can lead to elevations in mitochondrial biogenesis, oxidative capacity, mitochondrial density, and mitochondrial function. Mitochondrial biogenesis is regulated by the activation of the transcriptional coactivator peroxisome proliferator-activated receptor gamma coactivator 1-alpha. This master regulator of mitochondrial biogenesis activates nuclear respiratory factors (NRF-1, NRF-2) and mitochondrial transcription factor A, which enables the expansion of mitochondrial size and transcription of mitochondrial DNA...
May 1, 2018: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/29710033/methylxanthine-derivative-rich-cacao-extract-suppresses-differentiation-of-adipocytes-through-downregulation-of-ppar%C3%AE-and-c-ebps
#13
Yoko Yamashita, Takakazu Mitani, Liuqing Wang, Hitoshi Ashida
Cacao extract (CE) consumption has beneficial effects on human health, such as lowering the risk of obesity. However, the underlying molecular mechanism for the anti-obesity effect of CE remains incompletely understood. Here, we used a 50% aqueous alcohol extract of cacao mass, which is rich in methylxanthine derivatives (about 11%) and poor in flavan-3-ols (less than 1%), and assessed the suppression effects of this extract on adipocyte differentiation to investigate the anti-obesity mechanism. CE dose-dependently decreased fat accumulation in 3T3-L1 cells without affecting cell viability...
2018: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/29705237/b-hydroxybutyrate-protects-from-alcohol-induced-liver-injury-via-a-hcar2-camp-dependent-pathway
#14
Yonglin Chen, Xinshou Ouyang, Rafaz Hoque, Irma Garcia-Martinez, Muhammad Nadeem Yousaf, Sarah Tonack, Stefan Offermanns, Laurent Dubuquoy, Alexandre Louvet, Philippe Mathurin, Veronica Massey, Bernd Schnabl, Ramon A Bataller, Wajahat Zafar Mehal
BACKGROUND & AIMS: Sterile inflammation resulting in alcohol hepatitis (AH) occurs unpredictably after many years of excess alcohol intake. The factors responsible for the development of AH are not known but mitochondrial damage with loss of mitochondrial function are common features. Hcar2 is a G-protein coupled receptor which is activated by β-hydroxybutyrate (BHB), and the relevance of the BHB-Hcar2 pathway in alcoholic liver disease is not known. METHODS: We tested if loss of BHB production can result in increased liver inflammation...
April 26, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29702095/evidence-that-interferon-tau-secreted-from-day-7-embryo-in-vivo-generates-anti-inflammatory-immune-response-in-the-bovine-uterus
#15
Mohammad B Rashid, Anup K Talukder, Kazuya Kusama, Shingo Haneda, Toshiro Takedomi, Hitomi Yoshino, Satoru Moriyasu, Motozumi Matsui, Masayuki Shimada, Kazuhiko Imakawa, Akio Miyamoto
Recent studies suggest that Day-7 bovine embryo starts to communicate with the uterine epithelium through interferon-tau (IFNT) signaling. However, immune modulatory role of IFNT in the uterus just after the embryo moves from the oviduct is unclear. We aimed to examine the hypothesis that Day-7 bovine embryo secretes IFNT in the uterus, which induces anti-inflammatory response in immune cells. The uterine flush (UF) with multiple embryos was collected from Day-7 donor pregnant cows and peripheral blood mononuclear cells (PBMCs) were then cultured in UF...
April 24, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29685624/folic-acid-supplementation-repressed-hypoxia-induced-inflammatory-response-via-ros-and-jak2-stat3-pathway-in-human-promyelomonocytic-cells
#16
Jing Ma, Xiaozhou Zhen, Xiaoyan Huang, Xinwei Jiang
Hypoxia is associated with inflammation and various chronic diseases. Folic acid is known to ameliorate inflammatory reactions, but the metabolism of folic acid protecting against hypoxia-induced injury is still unclear. In our study, we examined the inflammatory signal transduction pathway in human promyelomonocytic cells (THP-1 cells) with or without treatment with folic acid under hypoxic culture conditions. Our results indicated that supplementation with folic acid significantly reduced the levels of interleukin-1β and tumor necrosis factor-α in hypoxic conditions...
March 19, 2018: Nutrition Research
https://www.readbyqxmd.com/read/29675133/benefit-of-oleuropein-aglycone-for-alzheimer-s-disease-by-promoting-autophagy
#17
REVIEW
Joaquín G Cordero, Ramón García-Escudero, Jesús Avila, Ricardo Gargini, Vega García-Escudero
Alzheimer's disease is a proteinopathy characterized by accumulation of hyperphosphorylated Tau and β -amyloid. Autophagy is a physiological process by which aggregated proteins and damaged organelles are eliminated through lysosomal digestion. Autophagy deficiency has been demonstrated in Alzheimer's patients impairing effective elimination of aggregates and damaged mitochondria, leading to their accumulation, increasing their toxicity and oxidative stress. In the present study, we demonstrated by microarray analysis the downregulation of fundamental autophagy and mitophagy pathways in Alzheimer's patients...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29659876/effects-of-lactobacillus-reuteri-lr1-on-the-growth-performance-intestinal-morphology-and-intestinal-barrier-function-in-weaned-pigs
#18
Hongbo Yi, Guangda Yang, Yunxia Xiong, Xiaolu Wen, Zhilin Wang, Xuefen Yang, Kaiguo Gao, Li Wang, Zongyong Jiang
The objective of this study was to investigate the effects of Lactobacillus reuteri LR1, a new strain isolated from the feces of weaned pigs, on the growth performance, intestinal morphology, immune responses, and intestinal barrier function in weaned pigs. A total of 144 weaned pigs (Duroc × Landrace × Yorkshire, 21 d of age) with an initial BW of 6.49 ± 0.02 kg were randomly assigned to 3 dietary treatments with 8 replicate pens, each of per treatment and 6 pigs. Pigs were fed a basal diet (CON, controls), the basal diet supplemented with 100 mg/kg olaquindox and 75 mg/kg aureomycin (OA) or the basal diet supplemented with 5×1010 cfu/kg L...
April 12, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29644962/effects-of-curcumin-on-performance-antioxidation-intestinal-barrier-and-mitochondrial-function-in-ducks-fed-corn-contaminated-with-ochratoxin-a
#19
D Ruan, W C Wang, C X Lin, A M Fouad, W Chen, W G Xia, S Wang, X Luo, W H Zhang, S J Yan, C T Zheng, L Yang
Curcumin has been attributed with antioxidant, anti-inflammatory, antibacterial activities, and has shown highly protective effects against enteropathogenic bacteria and mycotoxins. Ochratoxin A (OTA) is one of the major intestinal pathogenic mycotoxins. The possible effect of curcumin on the alleviation of enterotoxicity induced by OTA is unknown. The effects of dietary curcumin supplementation on OTA-induced oxidative stress, intestinal barrier and mitochondrial dysfunctions were examined in young ducks. A total of 540 mixed-sex 1-day-old White Pekin ducklings with initial BW (43...
April 12, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29629347/%C3%AE-carotene-inhibits-activation-of-nf-%C3%AE%C2%BAb-activator-protein-1-and-stat3-and-regulates-abnormal-expression-of-some-adipokines-in-3t3-l1-adipocytes
#20
Soon Ok Cho, Min-Hyun Kim, Hyeyoung Kim
Background: Oxidative stress occurs in white adipose tissue and dysregulates the expression of adipokines secreted from adipocytes. Since adipokines influence inflammation, supplementation with antioxidants might be beneficial for preventing oxidative stress-mediated inflammation in adipocytes and inflammation-associated complications. β-Carotene is the most prominent antioxidant carotenoid and scavenges reactive oxygen species in various tissues. The purpose of this study was to determine whether β-carotene regulates the expression of adipokines, such as adiponectin, monocyte chemoattractant protein-1 (MCP-1), and regulated on activation, normal T cell expressed and secreted (RANTES) in 3T3-L1 adipocytes treated with glucose/glucose oxidase (G/GO)...
March 2018: Journal of Cancer Prevention
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