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https://www.readbyqxmd.com/read/28926727/early-pregnancy-intrauterine-fetal-exposure-to-maternal-smoking-and-impact-on-fetal-telomere-length
#1
Hooman Mirzakhani, Immaculata De Vivo, J Steven Leeder, Roger Gaedigk, Carrie A Vyhlidal, Scott T Weiss, Kelan Tantisira
BACKGROUND: Reduced telomere length, or its accelerated attrition, has been implicated in aging, mortality, and several human diseases, including respiratory diseases. Age dependent manifestation of telomere-mediated disease during life span indicates the role of developmental stage in these diseases and highlights the importance of fetal developmental process in utero and at earlier life stages. Environmental determinants during developmental and later stages of life could affect telomere length...
September 14, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28924465/brain-dead-donation-rate-in-month-of-ramadan-and-the-other-months-2005-2014
#2
M Aghighi, M Mahdavi-Mazdeh, M Saberi Isfeedvajani, S A Tavakoli, N Tirgar, A Heidary Rouchi
Regardless of the level of development, religion and beliefs have crucial impact on people's attitude towards organ donation. Although organ donation in Islam is obviously appraised, mainly due to lack of an appropriate infrastructure, post-mortem donation rate in Islamic countries is not comparable to successful settings. We conducted this study to assess the extent of contribution of factors that reduce the level of effectiveness, and also to determine the impact of altruistic feelings in the month of Ramadan on family refusal as the leading modifiable contributor to organ donation rate...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28923613/demographic-characteristics-of-voluntary-donors-registered-in-beijing-tongren-hospital-eye-bank-of-china-a-retrospective-study-from-2007-to-2016
#3
Y Liu, Y N Zhang, Y Liu, J Zhang, A P Li, Q F Liang, Z Q Pan
BACKGROUND: Lack of willingness to pledge eyes among the general population is the main cause for the shortage of cornea tissue in China. A few studies have implied that general-population adults with specific demographics showed more willingness to donate their eyes. METHODS: In this study, we analyzed the demographic characteristics of 918 voluntary donors registered in Beijing Tongren Hospital Eye Bank in the past 10 years for possible predictors that might help us to identify potential donors in Beijing and increase the donation rate...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28922362/early-relapses-after-adjuvant-chemotherapy-suggests-primary-chemoresistance-in-diffuse-gastric-cancer
#4
Sharon Pattison, Catherine Mitchell, Stephen Lade, Trevor Leong, Rita A Busuttil, Alex Boussioutas
BACKGROUND: Survival from gastric cancer remains poor, particularly in Western populations. Previous pre-clinical and subgroup analyses of clinical trials have suggested differing benefits from fluoropyrimidine-based chemotherapeutics for diffuse and intestinal gastric cancer. This analysis examines patterns of relapse with and without adjuvant chemotherapy after curative resection for gastric cancer in these subtypes to explore the Lauren classification as a predictive marker of benefit for fluoropyrimidine-based adjuvant chemotherapy...
2017: PloS One
https://www.readbyqxmd.com/read/28920821/serum-ferritin-concentration-is-not-a-reliable-biomarker-of-iron-overload-disorder-progression-or-hemochromatosis-in-the-sumatran-rhinoceros-dicerorhinus-sumatrensis
#5
Terri L Roth, Paul R Reinhart, Jennifer L Kroll
The aim of this study was to determine if ferritin is a reliable biomarker of iron overload disorder (IOD) progression and hemochromatosis in the Sumatran rhinoceros (Dicerorhinus sumatrensis) by developing a species-specific ferritin assay and testing historically banked samples collected from rhinos that did and did not die of hemochromatosis. Ferritin extracted from Sumatran rhino liver tissue was used to generate antibodies for the Enzyme Immunoassay. Historically banked Sumatran rhino serum samples (n = 298) obtained from six rhinos in US zoos (n = 290); five rhinos at the Sumatran Rhino Conservation Centre in Sungai Dusun, Malaysia (n = 5); and two rhinos in Sabah, Malaysia (n = 3) were analyzed for ferritin concentrations...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28914201/the-transport-mechanism-of-extracellular-vesicles-at-the-blood-brain-barrier
#6
Junichi Matsumoto, Tessandra Stewart, William A Banks, Jing Zhang
Recently, extracellular vesicles (EVs), like exosomes and microvesicles, have attracted attention as potent carriers of intercellular communication throughout the body, including the brain. They transmit biological signals from donor cells to recipient cells, and recent evidence suggests they may even carry such signals to distant destinations through peripheral circulation. In the central nervous system (CNS), EVs contribute to maintaining normal neuronal function, as well as to the pathological development of neurodegenerative diseases...
September 13, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28900769/interface-scopulariopsis-gracilis-fungal-keratitis-following-descemet-s-stripping-automated-endothelial-keratoplasty-dsaek-with-a-contaminated-graft
#7
Craig Wilde, Marco Messina, Tara Moshiri, Susan E Snape, Senthil Maharajan
PURPOSE: To report for the first time a case of interface Scopulariopsis gracilis fungal keratitis following Descemet's stripping automated endothelial keratoplasty (DSAEK) with a contaminated graft. METHODS: A 57-year-old man with bilateral keratoconus and previous bilateral penetrating keratoplasties (PK) developed graft failure in association with marked corneal ectasia. He underwent a successful DSAEK. Unfortunately, a contaminated graft was transplanted and the following morning we were contacted by the eye bank to inform us a slow-growing fungus had been detected in the culture plates inoculated with dextran solution used to store the issued corneoscleral button...
September 12, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28890894/risk-of-contamination-of-gametes-and-embryos-during-cryopreservation-and-measures-to-prevent-cross-contamination
#8
REVIEW
Daniel C Joaquim, Eduardo D Borges, Iara G R Viana, Paula A Navarro, Alessandra A Vireque
The introduction and widespread application of vitrification are one of the most important achievements in human assisted reproduction techniques (ART) of the past decade despite controversy and unclarified issues, mostly related to concerns about disease transmission. Guidance documents published by US Food and Drug Administration, which focused on the safety of tissue/organ donations during Zika virus spread in 2016, as well as some reports of virus, bacteria, and fungi survival to cryogenic temperatures, highlighted the need for a review of the way how potentially infectious material is handled and stored in ART-related procedures...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28890079/the-effect-of-chronic-pulmonary-disease-and-mechanical-ventilation-on-corneal-donor-endothelial-cell-density-and-transplant-suitability
#9
Jordan A Margo, Martha F Whiting, Clayton H Brown, Caroline K Hoover, Wuqaas M Munir
PURPOSE: To determine how chronic obstructive pulmonary disease (COPD) and mechanical ventilation time affect corneal donor endothelial cell density (ECD) and transplant suitability. DESIGN: Retrospective cohort study METHODS: Setting: institutional Study Population: 39,679 cornea donor eyes from SightLife Eye Bank between 2012-2016. Demographics, death to preservation time, ECD, lens status, medical history, time on mechanical ventilation, and suitability for transplantation were included...
September 7, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28882962/prospective-analysis-of-a-sterile-semi-automated-tissue-biopsy-homogenization-method-in-the-diagnosis-of-prosthetic-joint-infections
#10
Christian Suren, Norbert Harrasser, Florian Pohlig, Ingo J Banke, Ulrich Lenze, Florian Lenze, Carolin Knebel, Rüdiger VON Eisenhart-Rothe, Johannes Schauwecker, Heinrich M L Mühlhofer
BACKGROUND/AIM: Prosthetic joint infection (PJI) remains a serious complication of total joint arthroplasty. To effectively treat PJI, it is essential to identify the microorganism causing it and be able to combine correct surgical and anti-infective treatments. This cannot always be achieved with the currently employed diagnostic methods. The aim of this study was to evaluate a semi-automated tissue biopsy bead milling method (Ultra-TurrAX, Axonlab AG; Reichenbach, Germany) based on the hypothesis that the results are more sensitive for microbe detection and less prone to contamination...
September 2017: In Vivo
https://www.readbyqxmd.com/read/28875077/uncovering-unseen-fungal-diversity-from-plant-dna-banks
#11
Erin M Datlof, Anthony S Amend, Kamala Earl, Jeremy Hayward, Clifford W Morden, Rachael Wade, Geoffrey Zahn, Nicole A Hynson
Throughout the world DNA banks are used as storage repositories for genetic diversity of organisms ranging from plants to insects to mammals. Designed to preserve the genetic information for organisms of interest, these banks also indirectly preserve organisms' associated microbiomes, including fungi associated with plant tissues. Studies of fungal biodiversity lag far behind those of macroorganisms, such as plants, and estimates of global fungal richness are still widely debated. Utilizing previously collected specimens to study patterns of fungal diversity could significantly increase our understanding of overall patterns of biodiversity from snapshots in time...
2017: PeerJ
https://www.readbyqxmd.com/read/28874630/decellularized-human-dermal-matrix-produced-by-a-skin-bank-a-new-treatment-for-abdominal-wall-defects
#12
Martina Ghetti, Elena Bondioli, Valeria Purpura, Giovanna Cenacchi, Paolo Ruscelli, Davide Melandri
BACKGROUND: Interest is increasing for human decellularized scaffolds for their ability to favor healing and cell infiltration after transplantation, in the treatment of abdominal wall defects. The purpose of the present study is to show the clinical results obtained after the application of human decellularized dermal matrix (HDM) produced by RER Skin Bank, on patients suffering from different abdominal wall defects. METHODS: Between 2012 and 2014, 64 patients, average age 64 years, received HDM, to replace and cover the damage area during abdominal wall surgery...
July 25, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28873690/nutritional-compound-analysis-and-morphological-characterization-of-spider-plant-cleome-gynandra-an-african-indigenous-leafy-vegetable
#13
Emmanuel O Omondi, Christof Engels, Godfrey Nambafu, Monika Schreiner, Susanne Neugart, Mary Abukutsa-Onyango, Traud Winkelmann
Spider plant is among the important indigenous African leafy vegetables having the potential to contribute to food and nutritional security in sub-Saharan Africa. The main objective of this study was to quantify the mineral concentration, to identify and quantify glucosinolates and flavonoids in spider plant and further to characterize spider plant entries using important morphological traits. Thirty spider plant entries from different African countries, comprising of farmers' cultivars, gene bank accessions and advanced lines were grown in a field experiment and harvested for leaves, stems, flowers and siliques at different developmental stages...
October 2017: Food Research International
https://www.readbyqxmd.com/read/28873283/in-vivo-like-culture-conditions-in-a-bioreactor-facilitate-improved-tissue-quality-in-corneal-storage
#14
Richard Schmid, Ioana-Sandra Tarau, Angela Rossi, Stefan Leonhardt, Thomas Schwarz, Sebastian Schuerlein, Christian Lotz, Jan Hansmann
The cornea is the most-transplanted tissue worldwide. However, the availability and quality of grafts are limited due to the current methods of corneal storage. In this study, a dynamic bioreactor system is employed to enable the control of intraocular pressure and the culture at the air-liquid interface. Thereby, in vivo-like storage conditions are achieved. Different media combinations for endothelium and epithelium are tested in standard and dynamic conditions to enhance the viability of the tissue. In contrast to culture conditions used in eye banks, the combination of the bioreactor and biochrom medium 1 allows to preserve the corneal endothelium and the epithelium...
September 5, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28864938/danish-sperm-donors-and-the-ethics-of-donation-and-selection
#15
Alison Wheatley
There has been a great deal of discussion about the ethical implications of donating sperm and of the ways in which donated tissue is presented, selected, and sold for use in assisted reproduction. Debates have emerged within the academic sphere, from donor offspring and recipients, and in broader popular culture, including questions about the commodification of human tissue and the eugenic potential of selecting donors from particular demographic categories. However, the voices of donors themselves on this subject have been largely silent...
September 1, 2017: Medicine, Health Care, and Philosophy
https://www.readbyqxmd.com/read/28859680/prevalence-of-human-pegivirus-1-and-sequence-variability-of-its-e2-glycoprotein-estimated-from-screening-donors-of-fetal-stem-cell-containing-material
#16
Yakov Vitrenko, Iryna Kostenko, Kateryna Kulebyakina, Khrystyna Sorochynska
BACKGROUND: Human pegivirus-1 (HPgV-1) is a member of the Flaviviridae family whose genomic organization and mode of cellular entry is similar to that of hepatitis C virus (HCV). The E2 glycoprotein of HPgV-1 is the principle mediator in the virus-cell interaction and as such harbors most of HPgV-1's antigenic determinants. HPgV-1 persists in blood cell precursors which are increasingly used for cell therapy. METHODS: We studied HPgV-1 prevalence in a large cohort of females donating fetal tissues for clinical use...
August 31, 2017: Virology Journal
https://www.readbyqxmd.com/read/28857238/the-diversity-in-the-expression-profile-of-caveolin-ii-transcripts-considering-its-new-transcript-in-breast-cancer
#17
Ariana Mehdi, Nasibeh Arabi, Majid Pornour, Hajar Vaseghi, Shahla Mohammad Ganji, Mohammad Reza Alivand, Maryam Salari, Mohammad Esmaeil Akbari
Most studies have revealed the effects of caveolins in cancer inhibition. However, due to a lack of reports about their new transcripts, their presence and their effects on different cancers are unclear. This study was conducted to evaluate the cavolin-2(cav-2) transcripts expression changes in tumoral and corresponding tissues and in contralateral breast, to investigate their variation associated with the variation of caveolin-1 (cav-1) expression in breast cancer. There were 40 breast-derived tumoral, corresponding and contralateral tissues obtained from the patients with breast cancer...
August 31, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28855637/direct-comparison-of-methionine-restriction-with-leucine-restriction-on-the-metabolic-health-of-c57bl-6j-mice
#18
Emma K Lees, Ruth Banks, Chelsea Cook, Sophie Hill, Nicola Morrice, Louise Grant, Nimesh Mody, Mirela Delibegovic
The effects of methionine restriction (MR) in rodents are well established; it leads to decreased body and fat mass, improved glucose homeostasis and extended lifespan, despite increased energy intake. Leucine restriction (LR) replicates some, but not all, of these effects of MR. To determine any differences in metabolic effects between MR and LR, this study compared 8 weeks of MR (80% restriction), LR (80% restriction) and control diet in 10-month-old C57BL/6J male mice. Body composition, food intake and glucose homeostasis were measured throughout the study and biochemical analyses of white adipose tissue (WAT) and liver were performed...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28855509/mhc-matching-improves-engraftment-of-ipsc-derived-neurons-in-non-human-primates
#19
Asuka Morizane, Tetsuhiro Kikuchi, Takuya Hayashi, Hiroshi Mizuma, Sayuki Takara, Hisashi Doi, Aya Mawatari, Matthew F Glasser, Takashi Shiina, Hirohito Ishigaki, Yasushi Itoh, Keisuke Okita, Emi Yamasaki, Daisuke Doi, Hirotaka Onoe, Kazumasa Ogasawara, Shinya Yamanaka, Jun Takahashi
The banking of human leukocyte antigen (HLA)-homozygous-induced pluripotent stem cells (iPSCs) is considered a future clinical strategy for HLA-matched cell transplantation to reduce immunological graft rejection. Here we show the efficacy of major histocompatibility complex (MHC)-matched allogeneic neural cell grafting in the brain, which is considered a less immune-responsive tissue, using iPSCs derived from an MHC homozygous cynomolgus macaque. Positron emission tomography imaging reveals neuroinflammation associated with an immune response against MHC-mismatched grafted cells...
August 30, 2017: Nature Communications
https://www.readbyqxmd.com/read/28852943/comparative-stylostome-ultrastructure-of-hirsutiella-zachvatkini-trombiculidae-and-trombidium-holosericeum-trombidiidae-larvae
#20
Andrey B Shatrov, Magdalena Felska
Stylostomes (feeding tubes) of Hirsutiella zachvatkini (Schluger) (Trombiculidae), feeding on bank voles [Myodes glareolus (Schreber)], and of Trombidium holosericeum (L.) (Trombidiidae), feeding on larvae of Stenodemini sp. (Heteroptera, Miridae), were studied by TEM methods and on semi-thin sections. The stylostome of H. zachvatkini is a homogeneous structure of low electron density and without strict margins. It extends within the concave host epidermis, undergoing hyperplasia and hyperkeratosis. TEM does not reveal any obvious stratification in the stylostome walls...
August 29, 2017: Experimental & Applied Acarology
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