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https://www.readbyqxmd.com/read/28109058/in-vivo-construction-of-liver-tissue-by-implantation-of-a-hepatic-non-parenchymal-adipose-derived-stem-cell-sheet
#1
Mio Fujii, Kosho Yamanouchi, Yusuke Sakai, Zhassulan Baimakhanov, Izumi Yamaguchi, Akihiko Soyama, Masaaki Hidaka, Mitsuhisa Takatsuki, Tamotsu Kuroki, Susumu Eguchi
Subcutaneous hepatocyte sheet implantation is an attractive therapeutic option for various liver diseases. However, this technique is limited by the availability of hepatocytes. Thus, the use of hepatic non-parenchymal cells (NPCs) containing small hepatocytes, which have the ability to proliferate more rapidly than mature hepatocytes, for transplantation has been suggested. The aim of our study was to construct liver tissue subcutaneously in rats by implanting NPC sheets co-cultivated with adipose-derived stem cells (ADSCs), which produce certain angiogenic factors...
January 21, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28106215/the-degree-of-processing-of-foods-which-are-most-widely-consumed-by-the-french-elderly-population-is-associated-with-satiety-and-glycemic-potentials-and-nutrient-profiles
#2
Anthony Fardet, Caroline Méjean, Hélène Labouré, Valentina A Andreeva, Gilles Feron
Food processing impacts both food structure and nutritional density. The effect of food structure on satiety and glycemic potentials is well recognized. However, the association between processing, satiety and glycemic potentials and nutrient profiles has not been much studied, especially in the diets of the elderly. Therefore, this study aimed at exploring relations between the level of food processing, consumption and nutrient profiles and satiety and glycemic potentials among 6686 French elderly people (≥65 years)...
January 20, 2017: Food & Function
https://www.readbyqxmd.com/read/28105582/-control-of-opisthorchis-viverrini-infection-for-cholangiocarcinoma-prevention
#3
Y Buisson
The International Agency for Research on Cancer (IARC) has classified two liver flukes as carcinogenic to humans (Group 1): Opisthorchis viverrini in 1994 and Clonorchis sinensis in 2009. This review is focused on O. viverrini, the most studied of these two trematodes, which infects nearly 10 million people in Southeast Asia. The life cycle involves two intermediate hosts living in fresh water: a snail of the genus Bithynia and a ciprinid fish. The definitive hosts (human, cat, dog) become infected by ingesting raw fish containing metacercariae, the infective stage of the parasite...
January 19, 2017: Bulletin de la Société de Pathologie Exotique
https://www.readbyqxmd.com/read/28105339/analysis-of-multiple-types-of-human-cells-subsequent-to-bioprinting-with-electrospraying-technology
#4
Yu Xin, Gang Chai, Ting Zhang, Xiangsheng Wang, Miao Qu, Andy Tan, Melia Bogari, Ming Zhu, Li Lin, Qingxi Hu, Yuanyuan Liu, Yan Zhang
The aim of the present study was to investigate bioprinting with electrospraying technology using multiple types of human cell suspensions as bio-ink, in order to lay the initial foundations for the application of the bioprinting technology in tissue engineering. In the current study, six types of human cells were selected and cultured, including human fibroblasts, human adipose-derived stem cells (hADSCs), human periodontal ligament cells (HPDLCs), adult human retinal pigment epithelial cells (ARPE-19), human umbilical vascular endothelial cells (HUVECs) and human gastric epithelial cell line (GES-1)...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28104841/human-tissues-in-a-dish-the-research-and-ethical-implications-of-organoid-technology
#5
REVIEW
Annelien L Bredenoord, Hans Clevers, Juergen A Knoblich
The ability to generate human tissues in vitro from stem cells has raised enormous expectations among the biomedical research community, patients, and the general public. These organoids enable studies of normal development and disease and allow the testing of compounds directly on human tissue. Organoids hold the promise to influence the entire innovation cycle in biomedical research. They affect fields that have been subjects of intense ethical debate, ranging from animal experiments and the use of embryonic or fetal human tissues to precision medicine, organoid transplantation, and gene therapy...
January 20, 2017: Science
https://www.readbyqxmd.com/read/28096043/a-simplified-protocol-for-culture-of-murine-neonatal-cardiomyocytes-on-nanoscale-keratin-coated-surfaces
#6
Aditi Jain, Venkatraman Ravi, Jaseer Muhamed, Kaushik Chatterjee, Nagalingam R Sundaresan
OBJECTIVE: We aim to develop a simple, efficient and cost-effective protocol for culturing the neonatal cardiomyocytes using keratin derived from human hair, which can be used for studying cardiac hypertrophy in vitro. METHODS: Keratin was extracted from human hair and applied as nanoscale coating onto the culture dishes. Physical parameters such as surface morphology and roughness of the coating were studied by SEM and AFM. Cardiomyocyte specific markers were assessed by immunofluorescence...
January 9, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28089614/dark-septate-endophyte-decreases-stress-on-rice-plants
#7
Silvana Gomes Dos Santos, Paula Renata Alves da Silva, Andres Calderin Garcia, Jerri Édson Zilli, Ricardo Luis Louro Berbara
Abiotic stress is one of the major limiting factors for plant development and productivity, which makes it important to identify microorganisms capable of increasing plant tolerance to stress. Dark septate endophytes can be symbionts of plants. In the present study, we evaluated the ability of dark septate endophytes isolates to reduce the effects of water stress in the rice varieties Nipponbare and Piauí. The experiments were performed under gnotobiotic conditions, and the water stress was induced with PEG...
December 27, 2016: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28089130/trends-in-nutrient-content-of-children-s-menu-items-in-u-s-chain-restaurants
#8
Alyssa J Moran, Jason P Block, Simo G Goshev, Sara N Bleich, Christina A Roberto
INTRODUCTION: Restaurant food is widely consumed by children and is associated with poor diet quality. Although many restaurants have made voluntary commitments to improve the nutritional quality of children's menus, it is unclear whether this has led to meaningful changes. METHODS: Nutrients in children's menu items (n=4,016) from 45 chain restaurants were extracted from the nutrition information database MenuStat. Bootstrapped mixed linear models estimated changes in mean calories, saturated fat, and sodium in children's menu items between 2012 and 2013, 2014, and 2015...
December 27, 2016: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28086754/making-the-most-of-mealtimes-m3-protocol-of-a-multi-centre-cross-sectional-study-of-food-intake-and-its-determinants-in-older-adults-living-in-long-term-care-homes
#9
Heather H Keller, Natalie Carrier, Susan Slaughter, Christina Lengyel, Catriona M Steele, Lisa Duizer, K Steve Brown, Habib Chaudhury, Minn N Yoon, Alison M Duncan, Veronique M Boscart, George Heckman, Lita Villalon
BACKGROUND: Older adults living in long term care (LTC) homes are nutritionally vulnerable, often consuming insufficient energy, macro- and micronutrients to sustain their health and function. Multiple factors are proposed to influence food intake, yet our understanding of these diverse factors and their interactions are limited. The purpose of this paper is to fully describe the protocol used to examine determinants of food and fluid intake among older adults participating in the Making the Most of Mealtimes (M3) study...
January 13, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28078414/application-of-hs-spme-gc-ms-method-for-the-detection-of-active-moulds-on-historical-parchment
#10
Tomasz Sawoszczuk, Justyna Syguła-Cholewińska, Julio M Del Hoyo-Meléndez
The goal of this work was to analyse the profile of microbial volatile organic compounds (MVOCs) emitted by moulds growing on parchment samples, in search of particular volatiles mentioned in the literature as indicators of active mould growth. First, the growth of various moulds on samples of parchment was assessed. Those species that showed collagenolytic activity were then inoculated on two types of media: samples of parchment placed on media and on media containing amino acids that are elements of the structure of collagen...
January 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28076798/neonatal-transplantation-confers-maturation-of-psc-derived-cardiomyocytes-conducive-to-modeling-cardiomyopathy
#11
Gun-Sik Cho, Dong I Lee, Emmanouil Tampakakis, Sean Murphy, Peter Andersen, Hideki Uosaki, Stephen Chelko, Khalid Chakir, Ingie Hong, Kinya Seo, Huei-Sheng Vincent Chen, Xiongwen Chen, Cristina Basso, Steven R Houser, Gordon F Tomaselli, Brian O'Rourke, Daniel P Judge, David A Kass, Chulan Kwon
Pluripotent stem cells (PSCs) offer unprecedented opportunities for disease modeling and personalized medicine. However, PSC-derived cells exhibit fetal-like characteristics and remain immature in a dish. This has emerged as a major obstacle for their application for late-onset diseases. We previously showed that there is a neonatal arrest of long-term cultured PSC-derived cardiomyocytes (PSC-CMs). Here, we demonstrate that PSC-CMs mature into adult CMs when transplanted into neonatal hearts. PSC-CMs became similar to adult CMs in morphology, structure, and function within a month of transplantation into rats...
January 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28075369/validation-of-a-dish-based-semiquantitative-food-questionnaire-in-rural-bangladesh
#12
Pi-I D Lin, Sabri Bromage, Md Golam Mostofa, Joseph Allen, Emily Oken, Molly L Kile, David C Christiani
A locally validated tool was needed to evaluate long-term dietary intake in rural Bangladesh. We assessed the validity of a 42-item dish-based semi-quantitative food frequency questionnaire (FFQ) using two 3-day food diaries (FDs). We selected a random subset of 47 families (190 participants) from a longitudinal arsenic biomonitoring study in Bangladesh to administer the FFQ. Two 3-day FDs were completed by the female head of the households and we used an adult male equivalent method to estimate the FD for the other participants...
January 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28069509/controlling-the-morphology-and-outgrowth-of-nerve-and-neuroglial-cells-the-effect-of-surface-topography
#13
REVIEW
C Simitzi, A Ranella, E Stratakis
: Unlike other tissue types, like epithelial tissue, which consist of cells with a much more homogeneous structure and function, the nervous tissue spans in a complex multilayer environment whose topographical features display a large spectrum of morphologies and size scales. Traditional cell cultures, which are based on two-dimensional cell-adhesive culture dishes or coverslips, are lacking topographical cues and mainly simulate the biochemical microenvironment of the cells. With the emergence of micro- and nano-fabrication techniques new types of cell culture platforms are developed, where the effect of various topographical cues on cellular morphology, proliferation and differentiation, can be studied...
January 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28067117/furan-in-commercial-baby-foods-from-the-spanish-market-estimation-of-daily-intake-and-risk-assessment
#14
M S Altaki, F J Santos, L Puignou, M T Galceran
The occurrence of furan in commercial baby food samples from the Spanish market was evaluated using an automated headspace solid-phase microextraction method coupled to gas chromatography-mass spectrometry (HS-SPME-GC-MS). A total of seventy six baby food samples including infant formula, baby cereals, fruit in cans and/or jars, vegetables, meat, and fish, were surveyed for furan content. The lowest concentration of this compound was found in infant formula (<0.02 - 0.33 ng mL(-1)), and cereal-based food (0...
January 9, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28065633/micronutrient-intake-is-inadequate-for-a-sample-of-pregnant-african-american-women
#15
Susan W Groth, Patricia A Stewart, Deborah J Ossip, Robert C Block, Nellie Wixom, I Diana Fernandez
BACKGROUND: Micronutrient intake is critical for fetal development and positive pregnancy outcomes. Little is known about the adequacy of micronutrient intake in pregnant African-American women. OBJECTIVE: To describe nutrient sufficiency and top food groups contributing to dietary intake of select micronutrients in low-income pregnant African-American women and determine whether micronutrient intake varies with early pregnancy body mass index (BMI) and/or gestational weight gain...
January 5, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28062830/dissecting-inherent-intratumor-heterogeneity-in-patient-derived-glioblastoma-culture-models
#16
Jian Teng, Cintia Carla da Hora, Rami S Kantar, Ichiro Nakano, Hiroaki Wakimoto, Tracy T Batchelor, E Antonio Chiocca, Christian E Badr, Bakhos A Tannous
BACKGROUND: Molecular profile of glioblastoma multiforme (GBM) revealed 4 subtypes, 2 of which, proneural and mesenchymal, have been predominantly observed, with the latter displaying a more aggressive phenotype and increased therapeutic resistance. Single-cell RNA sequencing revealed that multiple subtypes actually reside within the same tumor, suggesting cellular heterogeneity in GBM. Further, plasticity between these 2 subtypes is observed during tumor recurrence and in response to radiation therapy...
January 6, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28061858/cytotoxic-effects-of-nanosilver-are-highly-dependent-on-the-chloride-concentration-and-the-presence-of-organic-compounds-in-the-cell-culture-media
#17
Jean-Pierre Kaiser, Matthias Roesslein, Liliane Diener, Adrian Wichser, Bernd Nowack, Peter Wick
BACKGROUND: Nanosilver shows great promise for use in industrial, consumer or medical products because of its antimicrobial properties. However, the underlying mechanisms of the effects of silver nanoparticles on human cells are still controversial. Therefore, in the present study the influence of the chloride concentration and different serum content of culture media on the cytotoxic effects of nanosilver was systematically evaluated. RESULTS: Our results show that nanosilver toxicity was strongly affected by the composition of the culture media...
January 6, 2017: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/28061389/in-vitro-proliferation-of-periodontal-ligament-like-tissue-on-extracted-teeth
#18
T Iwata, C Mino, T Kawata
OBJECTIVE: Transplantation of autologous teeth is a routine component of orthodontic treatment. The aim of this study was to develop a method for the regeneration of damaged periodontal ligament (PDL) on extracted teeth using a three-dimensional culture system. DESIGN: We used the maxillary first premolars or third molars extracted from patients for orthodontic treatment. The extracted teeth were stained with toluidine blue to measure the residual PDL area. After confirming damage of the periodontal tissue on the root surface of the extracted teeth, we tried to regenerate the periodontal tissue...
November 30, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/28060340/reprogramming-mouse-embryonic-fibroblasts-with-transcription-factors-to-induce-a-hemogenic-program
#19
Michael G Daniel, Carlos-Filipe Pereira, Jeffrey M Bernitz, Ihor R Lemischka, Kateri Moore
This protocol details the induction of a hemogenic program in mouse embryonic fibroblasts (MEFs) via overexpression of transcription factors (TFs). We first designed a reporter screen using MEFs from human CD34-tTA/TetO-H2BGFP (34/H2BGFP) double transgenic mice. CD34(+) cells from these mice label H2B histones with GFP, and cease labeling upon addition of doxycycline (DOX). MEFS were transduced with candidate TFs and then observed for the emergence of GFP(+) cells that would indicate the acquisition of a hematopoietic or endothelial cell fate...
December 16, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28060317/observation-and-quantification-of-mating-behavior-in-the-pinewood-nematode-bursaphelenchus-xylophilus
#20
Najie Zhu, Liqun Bai, Stefan Schütz, Baojun Liu, Zhenyu Liu, Xingyao Zhang, Hongshi Yu, Jiafu Hu
A method for observing and quantifying the mating behavior of the pinewood nematode, Bursaphelenchus xylophilus, was established under a stereomicroscope. To improve the mating efficiency of B. Xylophilus and to increase the chances of mating observation, virgin adults were cultured and used for the investigation. Eggs were obtained by keeping the nematodes in water and allowing the females to lay eggs for 10 min. The second-stage juveniles (J2) were synchronized by incubating the eggs for 24 h at 25 °C in the dark, and the early J4 were obtained by culturing the J2 with grey mold, Botrytis cinerea, for another 52 h...
December 25, 2016: Journal of Visualized Experiments: JoVE
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