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https://www.readbyqxmd.com/read/27911088/african-american-women-s-perspectives-on-donating-healthy-breast-tissue-for-research-implications-for-recruitment
#1
Katherine E Ridley-Merriweather, Katharine J Head
African American women die of breast cancer at a higher rate than any other racial group. The Komen Tissue Bank (KTB) is an ongoing clinical trial that collects healthy breast tissue from women of all racial groups to use as controls in research and represents a critical tool in efforts to treat and prevent breast cancer; however, African Americans display reticence toward donating breast tissue to the KTB. Through the lens of the Integrated Behavioral Model, this study recruited African American women to share their perspectives on donating breast tissue for research purposes...
December 2, 2016: Health Communication
https://www.readbyqxmd.com/read/27903244/cryopreservation-of-dermal-fibroblasts-and-keratinocytes-in-hydroxyethyl-starch-based-cryoprotectants
#2
Yahaira Naaldijk, Adiv A Johnson, Annett Friedrich-Stöckigt, Alexandra Stolzing
BACKGROUND: Preservation of human skin fibroblasts and keratinocytes is essential for the creation of skin tissue banks. For successful cryopreservation of cells, selection of an appropriate cryoprotectant agent (CPA) is imperative. The aim of this study was to identify CPAs that minimize toxic effects and allow for the preservation of human fibroblasts and keratinocytes in suspension and in monolayers. RESULTS: We cryopreserved human fibroblasts and keratinocytes with different CPAs and compared them to fresh, unfrozen cells...
December 1, 2016: BMC Biotechnology
https://www.readbyqxmd.com/read/27893874/association-of-perivascular-localization-of-aquaporin-4-with-cognition-and-alzheimer-disease-in-aging-brains
#3
Douglas M Zeppenfeld, Matthew Simon, J Douglas Haswell, Daryl D'Abreo, Charles Murchison, Joseph F Quinn, Marjorie R Grafe, Randall L Woltjer, Jeffrey Kaye, Jeffrey J Iliff
Importance: Cognitive impairment and dementia, including Alzheimer disease (AD), are common within the aging population, yet the factors that render the aging brain vulnerable to these processes are unknown. Perivascular localization of aquaporin-4 (AQP4) facilitates the clearance of interstitial solutes, including amyloid-β, through the brainwide network of perivascular pathways termed the glymphatic system, which may be compromised in the aging brain. Objectives: To determine whether alterations in AQP4 expression or loss of perivascular AQP4 localization are features of the aging human brain and to define their association with AD pathology...
November 28, 2016: JAMA Neurology
https://www.readbyqxmd.com/read/27881439/optimisation-of-high-quality-total-ribonucleic-acid-isolation-from-cartilaginous-tissues-for-real-time-polymerase-chain-reaction-analysis
#4
M Peeters, C L Huang, L A Vonk, Z F Lu, R A Bank, M N Helder, B Zandieh Doulabi
OBJECTIVES: Studies which consider the molecular mechanisms of degeneration and regeneration of cartilaginous tissues are seriously hampered by problematic ribonucleic acid (RNA) isolations due to low cell density and the dense, proteoglycan-rich extracellular matrix of cartilage. Proteoglycans tend to co-purify with RNA, they can absorb the full spectrum of UV light and they are potent inhibitors of polymerase chain reaction (PCR). Therefore, the objective of the present study is to compare and optimise different homogenisation methods and RNA isolation kits for an array of cartilaginous tissues...
November 2016: Bone & Joint Research
https://www.readbyqxmd.com/read/27878655/the-use-of-donor-scleral-patch-in-ophthalmic-surgery
#5
REVIEW
Christopher Hodge, Gerard Sutton, Raj Devasahayam, Pierre Georges, Jane Treloggen, Simon Cooper, Con Petsoglou
Scleral tissue has been in use in ophthalmology for many years although indications for use have varied. We retrospectively reviewed scleral transplant tissue requests over a 12 month period at a local eye bank and confirmed a small but significant demand for the use of scleral tissue. Iatrogenic surgical complications are the primary indication for use. Our understanding of the indications and outcomes of scleral graft procedures is derived from case reports and small cohort series. We reviewed the current literature on existing indications for its use and discuss the relative outcomes...
November 23, 2016: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27876003/pla2r-antibodies-and-pla2r-glomerular-deposits-in-psoriasis-patients-with-membranous-nephropathy
#6
Yong-Chun Ge, Bo Jin, Cai-Hong Zeng, Ming-Chao Zhang, Da-Cheng Chen, Ru Yin, Wei-Bo Le
BACKGROUND: The association between psoriasis and membranous nephropathy (MN) remains largely unclear. We examined the prevalence of serum PLA2R antibody and characterized the expression of PLA2R and THSD7A in glomeruli in patients with MN and psoriasis. METHODS: A total of 24 patients with MN without evidence of a secondary cause except psoriasis were enrolled. The clinical and pathological features were retrospectively analyzed. Serum anti-PLA2R antibody was measured using IFA Mosaic...
November 22, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27861305/trends-and-determinants-of-familial-consent-for-corneal-donation-in-chinese
#7
Allie Lee, Michael Y Ni, Amanda C K Luk, Jessie K P Lau, Karen S Y Lam, Tom K Li, Catherine S M Wong, Victoria W Y Wong
PURPOSE: Corneal transplantation is the treatment of choice for many corneal diseases. At present, there is a global shortage of corneal transplant tissues, and failure to obtain consent from families of potential donors is a major limiting factor in tissue procurement. METHODS: All family members of potential donors after cardiac death approached by the local eye bank staff members from January 2008 to December 2014 in Hong Kong were included. Reasons for consent or refusal and sociodemographic details of the deceased and the family members approached were reviewed...
November 16, 2016: Cornea
https://www.readbyqxmd.com/read/27860489/methods-to-improve-sustainability-of-a-large-academic-biorepository
#8
Susan M Kelly, Luke T Wiehagen, Philip E Schumacher, Rajiv Dhir
This article discusses the evolution of the University of Pittsburgh (UPitt) Health Sciences Tissue Bank (HSTB) operation and how it has successfully positioned itself, manages to sustain its value, and remains viable in today's research landscape. We describe the various components of our biobanking operation, which are valued by our researchers, thus leading to sustainability for our biorepository. Operating within the infrastructure of a large academic university, we have access to the most cutting-edge database resources for collecting, tracking, and annotating thousands of specimens...
November 18, 2016: Biopreservation and Biobanking
https://www.readbyqxmd.com/read/27858312/isolation-and-complete-genome-characterization-of-novel-reassortant-orthoreovirus-from-common-vole-microtus-arvalis
#9
Enikő Fehér, Gábor Kemenesi, Miklós Oldal, Kornélia Kurucz, Renáta Kugler, Szilvia L Farkas, Szilvia Marton, Győző Horváth, Krisztián Bányai, Ferenc Jakab
A novel mammalian orthoreovirus (MRV) strain was isolated from the lung tissue of a common vole (Microtus arvalis) with Tula hantavirus infection. Seven segments (L1-L3, M2-M3, S2, and S4) of the Hungarian MRV isolate MORV/47Ma/06 revealed a high similarity with an MRV strain detected in bank vole (Myodes glareolus) in Germany. The M1 and S3 segment of the Hungarian isolate showed the closest relationship with the sequence of a Slovenian human and a French murine isolate, respectively. The highest nucleotide and amino acid identity values were above 90 and 95% in all of the comparisons to the reference sequences in GenBank, except for the S1 with a maximum of 69...
November 17, 2016: Virus Genes
https://www.readbyqxmd.com/read/27853009/outcome-of-transplanted-donor-corneas-with-more-than-6-h-of-death-to-preservation-time
#10
Ashik Mohamed, Sunita Chaurasia, Prashant Garg
PURPOSE: In tropical countries, physicians are skeptic in using corneas with death-to-preservation time (DTPT) >6 h, concerns being endothelial cell viability and microbial contamination on prolonged DTPT. The objective of the study was to investigate these concerns by analyzing the outcomes of corneal transplants performed using donor corneas with DTPT >6 h. MATERIALS AND METHODS: The study was a retrospective case series of 65 transplants performed in 2013 with donor corneas that had DTPT >6 h (range, 6...
September 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27852032/complement-component-7-c7-a-potential-tumor-suppressor-is-correlated-with-tumor-progression-and-prognosis
#11
Lisha Ying, Fanrong Zhang, Xiaodan Pan, Kaiyan Chen, Nan Zhang, Jiaoyue Jin, Junzhou Wu, Jianguo Feng, Herbert Yu, Hongchuan Jin, Dan Su
Our previous study found copy number variation of chromosome fragment 5p13.1-13.3 might involve in the progression of ovarian cancer. In the current study, the alteration was validated and complement component 7 (C7), located on 5p13.1, was identified. To further explore the clinical value of C7 in tumors, 156 malignant, 22 borderline, 33 benign and 24 normal ovarian tissues, as well as 173 non-small cell lung cancer (NSCLC) tissues along with corresponding adjacent and normal tissues from the tissue bank of Zhejiang Cancer Hospital were collected...
November 11, 2016: Oncotarget
https://www.readbyqxmd.com/read/27837566/cryopreservation-and-banking-of-dental-stem-cells
#12
Petra Hilkens, Ronald B Driesen, Esther Wolfs, Pascal Gervois, Tim Vangansewinkel, Jessica Ratajczak, Yörg Dillen, Annelies Bronckaers, Ivo Lambrichts
Over the past decade, dental tissues have become an attractive source of mesenchymal stem cells (MSCs). Dental stem cells (DSCs) are not only able to differentiate into adipogenic, chondrogenic and osteogenic lineanges, but an increasing amount of research also pointed out their potential applicability in numerous clinical disorders, such as myocardial infarction, neurodegenerative diseases and diabetes. Together with their multilineage differentiation capacity, their easy availability from extracted third molars makes these stem cells a suitable alternative for bone marrow-derived MSCs...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27837561/banking-of-adipose-and-cord-tissue-derived-stem-cells-technical-and-regulatory-issues
#13
David T Harris
Stem cells are found in all multicellular organisms and are defined as cells that can differentiate into specialized mature cells as well as divide to produce more stem cells. Mesenchymal stem cells (MSC) were among the first stem cell types to be utilized for regenerative medicine. Although initially isolated from bone marrow, based on ease and costs of procurement, MSC derived from adipose tissue (AT-MSC) and umbilical cord tissue (CT-MSC) are now preferred stem cell sources for these applications. Both adipose tissues and cord tissue present unique problems for biobanking however, in that these are whole tissues, not cellular suspensions...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27837560/cryopreserved-adipose-tissue-derived-stromal-stem-cells-potential-for-applications-in-clinic-and-therapy
#14
Fabiana Zanata, Shahensha Shaik, Ram V Devireddy, Xiying Wu, Lydia Masako Ferreira, Jeffrey M Gimble
Adipose-Derived Stromal/Stem Cells (ASC) have considerable potential for regenerative medicine due to their abilities to proliferate, differentiate into multiple cell lineages, high cell yield, relative ease of acquisition, and almost no ethical concerns since they are derived from adult tissue. Storage of ASC by cryopreservation has been well described that maintains high cell yield and viability, stable immunophenotype, and robust differentiation potential post-thaw. This ability is crucial for banking research and for clinical therapeutic purposes that avoid the morbidity related to repetitive liposuction tissue harvests...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27837553/biobanking-an-important-resource-for-precision-medicine-in-glioblastoma
#15
Si Yan Melanie Tan, Edwin Sandanaraj, Carol Tang, Beng Ti Christopher Ang
The Cancer Genome Atlas effort has generated significant interest in a new paradigm shift in tumor tissue analysis, patient diagnosis and subsequent treatment decision. Findings have highlighted the limitation of sole reliance on histology, which can be confounded by inter-observer variability. Such studies demonstrate that histologically similar grade IV brain tumors can be divided into four molecular subtypes based on gene expression, with each subtype demonstrating unique genomic aberrations and clinical outcome...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27837552/fundamental-principles-of-stem-cell-banking
#16
Changbin Sun, Jianhui Yue, Na He, Yaqiong Liu, Xi Zhang, Yong Zhang
Stem cells are highly promising resources for application in cell therapy, regenerative medicine, drug discovery, toxicology and developmental biology research. Stem cell banks have been increasingly established all over the world in order to preserve their cellular characteristics, prevent contamination and deterioration, and facilitate their effective use in basic and translational research, as well as current and future clinical application. Standardization and quality control during banking procedures are essential to allow researchers from different labs to compare their results and to develop safe and effective new therapies...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27837287/status-quo-of-management-of-the-human-tissue-banks-in-taiwan
#17
REVIEW
Ching-Pang Chou, Szu-Cheng Chou, Ying-Hua Chen, Yu-Hsuan Chen, Ming-Shin Lee
As the technologies associated with transplantation and biological tissue engineering continue to advance, human cells and tissues form an integral part to the practice of regenerative medicine. The patient's use of tissues entails the risk of introducing, transmitting and spreading communicable diseases. To prevent such risk and to ensure that the human organs, tissues and cells remain intact and functional after being handled and processed, the transplanted tissues must be subject to good management standards through all stages of collection, screening, processing, storage and distribution as the safety of the users is of the utmost importance...
November 11, 2016: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27824548/the-role-of-%C3%AE-%C3%AE-t-cells-in-fibrotic-diseases
#18
REVIEW
Ilan Bank
Inflammation induced by toxins, micro-organisms, or autoimmunity may result in pathogenic fibrosis, leading to long-term tissue dysfunction, morbidity, and mortality. Immune cells play a role in both induction and resolution of fibrosis. γδ T cells are an important group of unconventional T cells characterized by their expression of non-major histocompatibility complex restricted clonotypic T cell receptors for non-peptide antigens. Accumulating evidence suggests that subsets of γδ T cells in experimentally induced fibrosis following bleomycin treatment, or infection with Bacillus subtilis, play pro-inflammatory roles that instigate fibrosis, whereas the same cells may also play a role in resolving fibrosis...
October 31, 2016: Rambam Maimonides Medical Journal
https://www.readbyqxmd.com/read/27819644/patient-specific-instruments-for-complex-tumor-resection-reconstruction-surgery-within-the-pelvis-a-series-of-4-cases
#19
Eduard Cernat, Pierre-Louis Docquier, Laurent Paul, Xavier Banse, Ion-Bogdan Codorean
The pelvis bone resection-reconstruction surgery is one of the most challenging fields in orthopedics. Being applied for tumors, as for other complex reconstruction cases, this type of surgery needs careful planning and is time consuming, in order to obtain proper accuracy. Unfortunately not all the time the expected accuracy is met, with consequences for the patients. PSI proved to provide good cutting accuracy during simulated tumor surgery within the pelvis. This article present a series of 4 patients operated in our department between June 2014 and Mars 2015 for tumors resectionreconstructions...
2016: Chirurgia
https://www.readbyqxmd.com/read/27810289/gray-meat-in-the-atlantic-sea-scallop-placopecten-magellanicus-and-the-identification-of-a-known-pathogenic-scallop-apicomplexan
#20
Susan D Inglis, Árni Kristmundsson, Mark A Freeman, Megan Levesque, Kevin Stokesbury
Atlantic sea scallop (Placopecten magellanicus) meats are normally firm and creamy white. However, scallops with small, darkened and stringy adductor muscle (gray meat) episodically occur along the Eastern Seaboard, most recently in the rotational management areas of Georges Bank after extended fishing closures. These gray meat scallops are associated with reduced harvestable biomass and mass mortality events. We tested age, nutritional stress and disease as causative agents for this condition. Adult scallops of different shell heights (SH) ranging from (90-145mm) were collected from Georges Bank and analyzed for meat quality and the presence of pathogens using biochemical, histopathological and molecular methods...
November 2016: Journal of Invertebrate Pathology
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