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https://www.readbyqxmd.com/read/28439732/skin-allograft-procurement-and-transplantation-in-mashhad-iran-are-burn-patients-needs-being-met
#1
Seyed Hassan Tavousi, Ali Ahmadabadi, Alireza Sedaghat, Ebrahim Khaleghi, Maryam Rashchi, Zohreh Bonakdaran
Only a single donor's tissue may save or improve lives of one hundred patients. Unfortunately, low governmental and media support of tissue procurement and transplantation programs is a worldwide problem. Loss of an effective tissue procurement program in many countries like Iran, may lead to loss of many thousands valuable tissues each year. To evaluate the rate of skin donation in Mashhad in comparison to other organs and tissues, we extracted the data related to tissue and organ procurement in Mashhad from 2001...
April 24, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28438482/manufacture-and-preparation-of-human-placenta-derived-mesenchymal-stromal-cells-for-local-tissue-delivery
#2
Lee Lankford, Y Julia Chen, Zoe Saenz, Priyadarsini Kumar, Connor Long, Diana Farmer, Aijun Wang
BACKGROUND: In this study we describe the development of a Current Good Manufacturing Practice (CGMP)-compliant process to isolate, expand and bank placenta-derived mesenchymal stromal cells (PMSCs) for use as stem cell therapy. We characterize the viability, proliferation and neuroprotective secretory profile of PMSCs seeded on clinical-grade porcine small intestine submucosa extracellular matrix (SIS-ECM; Cook Biotech). METHODS: PMSCs were isolated from early gestation placenta chorionic villus tissue via explant culture...
April 21, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28427436/a-3d-in-vitro-model-of-the-human-breast-duct-a-method-to-unravel-myoepithelial-luminal-interactions-in-the-progression-of-breast-cancer
#3
Edward P Carter, James A Gopsill, Jennifer J Gomm, J Louise Jones, Richard P Grose
BACKGROUND: 3D modelling fulfils a critical role in research, allowing for complex cell behaviour and interactions to be studied in physiomimetic conditions. With tissue banks becoming established for a number of cancers, researchers now have access to primary patient cells, providing the perfect building blocks to recreate and interrogate intricate cellular systems in the laboratory. The ducts of the human breast are composed of an inner layer of luminal cells supported by an outer layer of myoepithelial cells...
April 21, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28424723/evidence-mechanism-and-alternative-chemical-seedbank-level-control-of-glyphosate-resistance-of-a-rigid-ryegrass-lolium-rigidum-biotype-from-southern-spain
#4
Pablo T Fernández-Moreno, Fernando Bastida, Rafael De Prado
Rigid ryegrass (Lolium rigidum) is one of the most troublesome weeds in different crops in the Mediterranean region. A rigid ryegrass biotype from an olive grove in Jaén province (Andalusía, southern Spain), potentially resistant to glyphosate (RG), was tested for its resistance level through dose-response assays using a susceptible biotype (SG). To test the hypothesis of a non-target-site-based resistance, as point mutations are far less common mechanisms of glyphosate resistance, studies were also conducted to elucidate whether resistance was associated with biochemical, metabolism, molecular and/or physiological mechanisms...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28422434/rat-hindlimb-cryopreservation-and-transplantation-a-step-towards-organ-banking
#5
Amir Arav, Or Friedman, Yehudit Natan, Eyal Gur, Nir Shani
In 2016 over 5 million reconstructive procedures were performed in the USA. The recent successes of clinical vascularized composite allotransplantations (VCA), hand and face transplantations included, established the tremendous potential of these life-enhancing reconstructions. Nevertheless, Due to limited availability and lifelong immunosuppression, application is limited. Long term banking of composite transplants may increase the availability of esthetically compatible parts with partial or complete HLA matching, reducing the risk of rejection and the immunosuppressive burden...
April 19, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28421181/mct1-in-invasive-ductal-carcinoma-monocarboxylate-metabolism-and-aggressive-breast-cancer
#6
Jennifer M Johnson, Paolo Cotzia, Roberto Fratamico, Lekha Mikkilineni, Jason Chen, Daniele Colombo, Mehri Mollaee, Diana Whitaker-Menezes, Marina Domingo-Vidal, Zhao Lin, Tingting Zhan, Madalina Tuluc, Juan Palazzo, Ruth C Birbe, Ubaldo E Martinez-Outschoorn
Introduction: Monocarboxylate transporter 1 (MCT1) is an importer of monocarboxylates such as lactate and pyruvate and a marker of mitochondrial metabolism. MCT1 is highly expressed in a subgroup of cancer cells to allow for catabolite uptake from the tumor microenvironment to support mitochondrial metabolism. We studied the protein expression of MCT1 in a broad group of breast invasive ductal carcinoma specimens to determine its association with breast cancer subtypes and outcomes. Methods: MCT1 expression was evaluated by immunohistochemistry on tissue micro-arrays (TMA) obtained through our tumor bank...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28402275/the-value-of-fats-expression-in-predicting-sensitivity-to-radiotherapy-in-breast-cancer
#7
Jun Zhang, Nan Wu, Tiemei Zhang, Tao Sun, Yi Su, Jing Zhao, Kun Mu, Zhao Jin, Ming Gao, Juntian Liu, Lin Gu
PURPOSE: The fragile-site associated tumor suppressor (FATS) is a newly identified tumor suppressor involved in radiation-induced tumorigenesis. The purpose of this study was to characterize FATS expression in breast cancers about radiotherapy benefit, patient characteristics, and prognosis. RESULTS: The expression of FATS mRNA was silent or downregulated in 95.2% of breast cancer samples compared with paired normal controls (P < .0001). Negative status of FATS was correlated with higher nuclear grade (P = ...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28400987/serum-hepcidin-levels-iron-dyshomeostasis-and-cognitive-loss-in-alzheimer-s-disease
#8
Zohara Sternberg, Zihua Hu, Daniel Sternberg, Shayan Waseh, Joseph F Quinn, Katharine Wild, Kaye Jeffrey, Lin Zhao, Michael Garrick
This pilot study examined the status of the master iron regulatory peptide, hepcidin, and peripheral related iron parameters in Alzheimer's disease (AD) and mild cognitive impairment patients, and evaluated the relationship between iron dyshomeostasis and amyloid-beta (Aβ), cognitive assessment tests, neuroimaging and clinical data. Frozen serum samples from the Oregon Tissue Bank were used to measure serum levels of hepcidin, ferritin, Aβ40, Aβ42 using enzyme-linked immunosorbent assay. Serum transferrin levels were determined indirectly as total iron binding capacity, serum iron was measured and the percent saturation of transferrin calculated...
April 2017: Aging and Disease
https://www.readbyqxmd.com/read/28388797/dorsal-augmentation-with-homologous-rib
#9
Russell W H Kridel, Angela K Sturm
Dorsal augmentation grafts are used to reconstruct and raise the nasal dorsum in patients with dorsal saddling due to trauma, infection, or previous nasal surgery, as well as in patients with a narrow, congenitally low, and/or wide dorsum. Alloplastic implants and various biomaterials are available for grafting, each with advantages and disadvantages. Although autologous septal cartilage is a preferable and often convenient source of cartilage, it is frequently not sufficient for large volume dorsal augmentation, nor is it available in patients who have had septoplasty, infection, previous rhinoplasty with grafting, or significant trauma...
April 2017: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/28381247/outcomes-of-descemet-stripping-automated-endothelial-keratoplasty-using-imported-donor-corneas
#10
Kaevalin Lekhanont, Kavin Vanikieti, Nutthida Nimvorapun, Varintorn Chuckpaiwong
BACKGROUND: The lack of development of local donor tissue acquisition in several regions of the world has resulted in the necessity of performing keratoplasty with imported donor corneas. The greatest concern about the use of donor corneas supplied by foreign eye banks is the effect of the increased donor death-to-operation time which inevitably occurs during the tissue recovery, tissue processing, and tissue transfer between the countries. The purpose of this study was to report the outcomes of descemet stripping automated endothelial keratoplasty (DSAEK) using imported donor corneas...
April 5, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28381170/the-expression-levels-of-cyp3a4-and-cyp3a5-serve-as-potential-prognostic-biomarkers-in-lung-adenocarcinoma
#11
Mao Qixing, Xu Juqing, Wang Yajing, Dong Gaochao, Xia Wenjie, Shi Run, Wang Anpeng, Xu Lin, Jiang Feng, Wang Jun
Lung adenocarcinoma remains to be a high-mortality disease with few effective prognostic biomarkers. Novel biomarkers are urgently demanded to supplement the current prognostic biomarkers. Here, we explored the prognostic value of CYP3A4 and CYP3A5 in lung adenocarcinoma. The tissue microarray was made up of lung adenocarcinoma samples and corresponding normal lung tissues from Nanjing Medical University affiliated Cancer Hospital Tissue Bank. The expression of CYP3A4, together with CYP3A5, was detected by the chip data from Gene Expression Omnibus datasets and immunohistochemistry staining of the tissue microarray...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28374155/morphometry-of-organ-cultured-corneal-endothelium-using-voronoi-segmentation
#12
Nigel H Brookes
The endothelial viability of eye-banked corneas must be assessed before transplantation, yet phase-contrast images of the endothelium of corneas stored in an Organ Culture system have a huge variety of endothelial appearance at different focal planes, due to stromal swelling and an evaluation technique that swells the cells and their intercellular spaces to make them visible. This makes them difficult to assess using common edge-based segmentation methodologies that have mostly been developed in vivo using specular microscopy...
April 3, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28374124/external-dose-reconstruction-for-the-former-village-of-metlino-techa-river-russia-based-on-environmental-surveys-luminescence-measurements-and-radiation-transport-modelling
#13
M M Hiller, C Woda, N G Bougrov, M O Degteva, O Ivanov, A Ulanovsky, S Romanov
In the first years of its operation, the Mayak Production Association, a facility part of the Soviet nuclear weapons program in the Southern Urals, Russia, discharged large amounts of radioactively contaminated effluent into the nearby Techa River, thus exposing the people living at this river to external and internal radiations. The Techa River Cohort is a cohort intensely studied in epidemiology to investigate the correlation between low-dose radiation and health effects on humans. For the individuals in the cohort, the Techa River Dosimetry System describes the accumulated dose in human organs and tissues...
May 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28373692/a-missense-mutation-in-katnal1-underlies-behavioural-neurological-and-ciliary-anomalies
#14
G Banks, G Lassi, A Hoerder-Suabedissen, F Tinarelli, M M Simon, A Wilcox, P Lau, T N Lawson, S Johnson, A Rutman, M Sweeting, J E Chesham, A R Barnard, N Horner, H Westerberg, L B Smith, Z Molnár, M H Hastings, R A Hirst, V Tucci, P M Nolan
Microtubule severing enzymes implement a diverse range of tissue-specific molecular functions throughout development and into adulthood. Although microtubule severing is fundamental to many dynamic neural processes, little is known regarding the role of the family member Katanin p60 subunit A-like 1, KATNAL1, in central nervous system (CNS) function. Recent studies reporting that microdeletions incorporating the KATNAL1 locus in humans result in intellectual disability and microcephaly suggest that KATNAL1 may play a prominent role in the CNS; however, such associations lack the functional data required to highlight potential mechanisms which link the gene to disease symptoms...
April 4, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28364523/adipose-stem-cell-function-maintained-with-age-an-intra-subject-study-of-long-term-cryopreserved-cells
#15
Lauren E Kokai, Dmitry O Traktuev, Liyong Zhang, Stephanie Merfeld-Clauss, Gabriella DiBernardo, Hongyan Lu, Kacey G Marra, Albert Donnenberg, Vera Donnenberg, E Michael Meyer, Peter B Fodor, Keith L March, J Peter Rubin
Background: The progressive decline in tissue mechanical strength that occurs with aging is hypothesized to be due to a loss of resident stem cell number and function. As such, there is concern regarding use of autologous adult stem cell therapy in older patients. To abrogate this, many patients elect to cryopreserve the adipose stromal-vascular fraction (SVF) of lipoaspirate, which contains resident adipose stem cells (ASC). However, it is not clear yet if there is any clinical benefit from banking cells at a younger age...
April 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28364215/dna-methylation-age-is-elevated-in-breast-tissue-of-healthy-women
#16
Mary E Sehl, Jill E Henry, Anna Maria Storniolo, Patricia A Ganz, Steve Horvath
BACKGROUND: Limited evidence suggests that female breast tissue ages faster than other parts of the body according to an epigenetic biomarker of aging known as the "epigenetic clock." However, it is unknown whether breast tissue samples from healthy women show a similar accelerated aging effect relative to other tissues, and what could drive this acceleration. The goal of this study is to validate our initial finding of advanced DNA methylation (DNAm) age in breast tissue, by directly comparing it to that of peripheral blood tissue from the same individuals, and to do a preliminary assessment of hormonal factors that could explain the difference...
March 31, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28361061/non-homologous-end-joining-protein-expression-screen-from-radiosensitive-cancer-patients-yields-a-novel-dna-double-strand-break-repair-phenotype
#17
Michael J McKay, Su Kak Goh, Jeremy N McKay, Michael Chao, Timothy M McKay
BACKGROUND: Clinical radiosensitivity is a significant impediment to tumour control and cure, in that it restricts the total doses which can safely be delivered to the whole radiotherapy population, within the tissue tolerance of potentially radiosensitive (RS) individuals. Understanding its causes could lead to personalization of radiotherapy. METHODS: We screened tissues from a unique bank of RS cancer patients for expression defects in major DNA double-strand break repair proteins, using Western blot analysis and subsequently reverse-transcriptase polymerase chain reaction and pulsed-field gel electrophoresis...
March 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28353263/quality-assured-characterization-of-stem-cells-for-safety-in-banking-for-clinical-application
#18
Kevin W Bruce, John D M Campbell, Paul De Sousa
The promise of human pluripotent stem cells to serve as a scalable and renewable starting material for "off the shelf" therapeutic cell products to repair or replace cells and tissues damaged by disease or injury is unparalleled. Whether originating from embryos or the genetic manipulation of adult tissue-derived cells, this prospective impact dictates a comprehensive yet practicable standard of quality assured characterization, blending existing and bespoke standards and considerations. Here, we provide a guide to qualifying the suitability of this resource for human clinical application...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28353262/cryopreservation-vitrification-and-controlled-rate-cooling
#19
Charles J Hunt
Cryopreservation is the application of low temperatures to preserve the structural and functional integrity of cells and tissues. Conventional cooling protocols allow ice to form and solute concentrations to rise during the cryopreservation process. The damage caused by the rise in solute concentration can be mitigated by the use of compounds known as cryoprotectants. Such compounds protect cells from the consequences of slow cooling injury, allowing them to be cooled at cooling rates which avoid the lethal effects of intracellular ice...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28353260/acquisition-and-reception-of-primary-tissues-cells-or-other-biological-specimens
#20
Lyn E Healy
The use and banking of biological material for research or clinical application is a well-established practice. The material can be of human or non-human origin. The processes involved in this type of activity, from the sourcing to receipt of materials, require adherence to a set of best practice principles that assure the ethical and legal procurement, traceability, and quality of materials.
2017: Methods in Molecular Biology
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