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https://www.readbyqxmd.com/read/28542787/understanding-the-reconstitution-of-the-b-cell-compartment-in-bone-marrow-and-blood-after-treatment-for-b-cell-precursor-acute-lymphoblastic-leukaemia
#1
Prisca M J Theunissen, Anouk van den Branden, Alita Van Der Sluijs-Gelling, Valerie De Haas, Auke Beishuizen, Jacques J M van Dongen, Vincent H J Van Der Velden
A better understanding of the reconstitution of the B-cell compartment during and after treatment in B-cell precursor acute lymphoblastic leukaemia (BCP-ALL) will help to assess the immunological status and needs of post-treatment BCP-ALL patients. Using 8-colour flow cytometry and proliferation-assays, we studied the composition and proliferation of both the B-cell precursor (BCP) population in the bone marrow (BM) and mature B-cell population in peripheral blood (PB) during and after BCP-ALL therapy. We found a normal BCP differentiation pattern and a delayed formation of classical CD38(dim) -naive mature B-cells, natural effector B-cells and memory B-cells in patients after chemotherapy...
May 25, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28540094/diagnosis-of-splenic-lymphoma-by-endoscopic-ultrasound-guided-fine-needle-aspiration-a-case-report-and-review-of-the-literature
#2
Umar Darr, Zubair Khan, Muhammad Ali Khan, Anas Renno, Turki Alkully, Sehrish Kamal, Tariq Hammad, Yaseen Alastal, Muhammad Imran Khan, Ali Nawras
Introduction. Splenic tumor is usually found as an incidental finding on CT of abdomen. Traditionally, ultrasound (US) or computed tomography (CT) guided biopsies were employed for the purpose of sampling; however they have been reported to have a complication rate of 5.3%. Endoscopic ultrasound-fine needle aspiration (EUS-FNA) has been recently utilized for the purpose of sampling splenic tumors. In literature there are 7 reported instances where splenic lymphoma was diagnosed using EUS-FNA. We present a case of follicular B cell lymphoma of the spleen diagnosed using EUS-FNA...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28532823/effects-of-rumen-protected-methionine-and-choline-supplementation-on-steroidogenic-potential-of-the-first-postpartum-dominant-follicle-and-expression-of-immune-mediators-in-holstein-cows
#3
D A V Acosta, M I Rivelli, C Skenandore, Z Zhou, D H Keisler, D Luchini, M N Corrêa, F C Cardoso
Multiparous Holstein cows were assigned in a randomized complete block design into four treatments from 21 d before calving to 30 d in milk (DIM). Treatments were: MET [n = 19, fed the basal diet + rumen-protected methionine at a rate of 0.08% (w/w) of the dry matter, Smartamine(®) M], CHO (n = 17, fed the basal diet + choline 60 g/d, Reashure(®)), MIX (n = 21, fed the basal diet + Smartamine(®) M at a rate of 0.08% (w/w) of the dry matter and 60 g/d Reashure(®)), and CON (n = 20, no supplementation, fed the close-up and fresh cow diets)...
July 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28529644/3-3-diindolylmethane-stimulates-exosomal-wnt11-autocrine-signaling-in-human-umbilical-cord-mesenchymal-stem-cells-to-enhance-wound-healing
#4
Hui Shi, Xiao Xu, Bin Zhang, Jiahao Xu, Zhaoji Pan, Aihua Gong, Xu Zhang, Rong Li, Yaoxiang Sun, Yongmin Yan, Fei Mao, Hui Qian, Wenrong Xu
Human umbilical cord-derived mesenchymal stem cells (hucMSCs) are suggested as a promising therapeutic tool in regenerative medicine, however, their efficacy requires improvement. Small molecules and drugs come up to be a convenient strategy in regulating stem cells fate and function. Here, we evaluated 3,3'-diindolylmethane (DIM), a natural small-molecule compound involved in the repairing effects of hucMSCs on a deep second-degree burn injury rat model. HucMSCs primed with 50 μM of DIM exhibited desirable repairing effects compared with untreated hucMSCs...
2017: Theranostics
https://www.readbyqxmd.com/read/28529525/melatonin-in-tuberous-sclerosis-complex-analysis-using-modern-mathematical-modeling-methods
#5
Justyna Paprocka, Marek Kijonka, Łukasz Boguszewicz, Maria Sokół
Purpose. The aim of the study was to assess melatonin secretion pattern in children with TSC and to compare it with the secretion patterns in children with and without epilepsy. Material and Methods. Melatonin secretion was measured every three hours using the RIA method in four children with recognized TSC. The parameters of the melatonin secretion models were interpreted and compared with those obtained for the patients with epilepsy (n = 76) and the children from the control, nonepileptic group (n = 36)...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28526480/human-seasonal-and-circadian-studies-in-antarctica-halley-75-0-s
#6
Josephine Arendt, Benita Middleton
Living for extended periods in Antarctica exposes base personnel to extremes of daylength (photoperiod) and temperature. At the British Antarctic Survey base of Halley, 75(0)S, the sun does not rise for 110 d in the winter and does not set for 100 d in summer. Photoperiod is the major time cue governing the timing of seasonal events such as reproduction in many species. The neuroendocrine signal providing photoperiodic information to body physiology is the duration of melatonin secretion which reflects the length of the night: longer in the short days of winter and shorter in summer...
May 16, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28525343/changes-of-hematological-and-biochemical-parameters-and-levels-of-pepsinogen-histamine-and-prostaglandins-in-dairy-cows-affected-with-left-displacement-of-the-abomasum
#7
O Al-Rawashdeh, Z Bani Ismail, A Talafha, A Al-Momani
The aims of this study were to determine the serum levels of pepsinogen, histamine, and prostaglandins F2α and E2 in lactating dairy cows affected with left displacement of the abomasum (LDA). In addition, the hematological and serum biochemical parameters were also determined in cows affected with LDA. A total of 52 adult lactating Holstein-Friesian cows affected with LDA and 30 normal cows (control) were used. In LDA cows, the average age, BCS and body weight were 4.9 ± 1.2 years, 2.5 ± 0.75, and 525 ± 150kg respectively...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28523279/increased-neutrophil-extracellular-trap-formation-in-uremia-is-associated-with-chronic-inflammation-and-prevalent-coronary-artery-disease
#8
Jwa-Kyung Kim, Chang-Won Hong, Mi Jin Park, Young Rim Song, Hyung Jik Kim, Sung Gyun Kim
Background. Neutrophils are involved in the pathogenesis of atherosclerosis by neutrophil extracellular trap (NET) formation. We hypothesized that the NET formation of neutrophils might be changed in end-stage renal disease (ESRD) patients, explaining their higher incidence of coronary artery diseases (CAD). Method. A cross-sectional study was performed in 60 maintenance hemodialysis (MHD) patients, 30 age- and sex-matched healthy individuals (HV, negative control), and 30 patients with acute infection (positive control)...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28522084/circadian-phase-dynamics-of-subjective-sleepiness-and-sensitivity-to-blue-light-in-young-adults-complaining-of-a-delayed-sleep-schedule
#9
Christophe Moderie, Solenne Van der Maren, Marie Dumont
OBJECTIVE: To assess factors that might contribute to a delayed sleep schedule in young adults with sub-clinical features of delayed sleep phase disorder. METHODS: Two groups of 14 young adults (eight women) were compared: one group complaining of a delayed sleep schedule and a control group with an earlier bedtime and no complaint. For one week, each subject maintained a target bedtime reflecting their habitual sleep schedule. Subjects were then admitted to the laboratory for the assessment of circadian phase (dim light melatonin onset), subjective sleepiness, and non-visual light sensitivity...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28518118/harnessing-the-dna-dye-triggered-side-population-phenotype-to-detect-and-purify-cancer-stem-cells-from-biological-samples
#10
Maximilian Boesch, Elisabeth Hoflehner, Dominik Wolf, Guenther Gastl, Sieghart Sopper
Cancer is a stem cell-driven disease and eradication of these cells has become a major therapeutic goal. Deciphering vulnerabilities of Cancer Stem Cells (CSCs) and identifying suitable molecular targets relies on methods that allow their specific discrimination in heterogeneous samples such as cell lines and ex vivo tumor tissue. Flow cytometry/FACS is a powerful technology to multi-parametrically dissect biological samples at the single cell level and is to date the method of choice to recover live cells for downstream analyses...
May 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28518086/ptr-tof-ms-coupled-with-an-automated-sampling-system-and-tailored-data-analysis-for-food-studies-bioprocess-monitoring-screening-and-nose-space-analysis
#11
Vittorio Capozzi, Sine Yener, Iuliia Khomenko, Brian Farneti, Luca Cappellin, Flavia Gasperi, Matteo Scampicchio, Franco Biasioli
Proton Transfer Reaction (PTR), combined with a Time-of-Flight (ToF) Mass Spectrometer (MS) is an analytical approach based on chemical ionization that belongs to the Direct-Injection Mass Spectrometric (DIMS) technologies. These techniques allow the rapid determination of volatile organic compounds (VOCs), assuring high sensitivity and accuracy. In general, PTR-MS requires neither sample preparation nor sample destruction, allowing real time and non-invasive analysis of samples. PTR-MS are exploited in many fields, from environmental and atmospheric chemistry to medical and biological sciences...
May 11, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28515092/human-cd62l-dim-neutrophils-identified-as-a-separate-subset-by-proteome-profiling-and-in-vivo-pulse-chase-labelling
#12
Tamar Tak, Patrick Wijten, Marjolein Heeres, Peter Pickkers, Arjen Scholten, Albert J R Heck, Nienke Vrisekoop, Luke P Leenen, Jos Eacute A M Borghans, Kiki Tesselaar, Leo Koenderman
During acute inflammation three neutrophil subsets are found in the blood: neutrophils with a conventional segmented nucleus, neutrophils with a banded nucleus and T-cell-suppressing CD62L(dim) neutrophils with a high number of nuclear lobes. In this study (clinicaltrials.gov NCT01766414) we compared the in vivo kinetics and proteomes of banded, mature and hypersegmented neutrophils to determine whether these cell types represent truly different neutrophil subsets or reflect changes induced by LPS activation...
May 17, 2017: Blood
https://www.readbyqxmd.com/read/28514909/what-can-action-learning-offer-a-beleaguered-system-a-narrative-representing-the-relationship
#13
James Traeger
Purpose This is an attempt to write an account of action learning that is as close to the ground on which it was practised as the author can make it. In that sense, the reader can read what follows below as a kind of autoethnography, a "representation as relationship" as Gergen and Gergen (2002, p. 11) call it. This is because in the opportunity of telling a story about his practice as an action learning facilitator, the author hopes to evoke that which is more akin to the contactful environment of quality action learning than any amount of abstract theorising...
May 2, 2017: Leadership in Health Services
https://www.readbyqxmd.com/read/28507799/characterization-of-a-human-anti-tumoral-nk-cell-population-expanded-after-bcg-treatment-of-leukocytes
#14
Eva M García-Cuesta, Gloria Esteso, Omodele Ashiru, Sheila López-Cobo, Mario Álvarez-Maestro, Ana Linares, Mei M Ho, Luis Martínez-Piñeiro, Hugh T Reyburn, Mar Valés-Gómez
Immunotherapy, via intra-vesical instillations of BCG, is the therapy of choice for patients with high-risk non-muscle invasive bladder cancer. The subsequent recruitment of lymphocytes and myeloid cells, as well as the release of cytokines and chemokines, is believed to induce a local immune response that eliminates these tumors, but the detailed mechanisms of action of this therapy are not well understood. Here, we have studied the phenotype and function of the responding lymphocyte populations as well as the spectrum of cytokines and chemokines produced in an in vitro model of human peripheral blood mononuclear cells (PBMCs) co-cultured with BCG...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28505664/temporal-brightness-illusion-changes-color-perception-of-the-dress
#15
Laila Hugrass, Jana Slavikova, Melissa Horvat, Alaa Al Musawi, David Crewther
"The dress" has provoked intensive commentary among psychophysicists, especially in relation to color vision. Researchers have shown that manipulating illuminance cues can influence the perceived colors of the dress. Here we investigate whether illusory shifts in brightness can shift color perception of the dress. Drifting achromatic gratings with fast off and fast on shading profiles are known to give an illusion of brightening or darkening, respectively. We superimposed rotating sawtooth gratings on a series of dress images that morphed from extreme white/gold through to blue/black...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28503201/dna-methylation-and-dna-methyltransferases
#16
REVIEW
John R Edwards, Olya Yarychkivska, Mathieu Boulard, Timothy H Bestor
The prevailing views as to the form, function, and regulation of genomic methylation patterns have their origin many years in the past, at a time when the structure of the mammalian genome was only dimly perceived, when the number of protein-encoding mammalian genes was believed to be at least five times greater than the actual number, and when it was not understood that only ~10% of the genome is under selective pressure and likely to have biological function. We use more recent findings from genome biology and whole-genome methylation profiling to provide a reappraisal of the shape of genomic methylation patterns and the nature of the changes that they undergo during gametogenesis and early development...
2017: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/28501411/short-communication-associations-between-blood-glucose-concentration-onset-of-hyperketonemia-and-milk-production-in-early-lactation-dairy-cows
#17
J Ruoff, S Borchardt, W Heuwieser
The objectives of this study were to describe the associations between hypoglycemia and the onset of hyperketonemia (HYK) within the first 6 wk of lactation, to evaluate the effects of body condition score at calving on glucose concentration, and to study the effects of hypoglycemia on milk production. A total of 621 dairy cows from 6 commercial dairy farms in Germany were enrolled between 1 and 4 d in milk (DIM). Cows were tested twice weekly using an electronic handheld meter for glucose and β-hydroxybutyrate (BHB), respectively, for a period of 42 d...
May 10, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28501403/use-of-calcitriol-to-maintain-postpartum-blood-calcium-and-improve-immune-function-in-dairy-cows
#18
A Vieira-Neto, I R P Lima, F Lopes, C Lopera, R Zimpel, L D P Sinedino, K C Jeong, K Galvão, W W Thatcher, C D Nelson, J E P Santos
Our objectives were to determine the effects of an injectable formulation of calcitriol on mineral metabolism and immune function in postpartum Holstein cows that received an acidogenic diet prepartum to minimize hypocalcemia. In experiment 1, cows within 6 h of calving received calcitriol (0, 200, or 300 μg) to determine the dose needed to increase plasma concentrations of Ca; 300 μg was sufficient to sustain Ca for at least 3 d. In experiment 2, multiparous cows were assigned randomly to receive only vehicle (control, n = 25) or 300 μg of calcitriol (n = 25) subcutaneously within the first 6 h after calving...
May 10, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28500770/the-role-of-melatonin-in-the-neurodevelopmental-etiology-of-schizophrenia-a-study-in-human-olfactory-neuronal-precursors
#19
Tania Galván-Arrieta, Citlali Trueta, Montserrat G Cercós, Marcela Valdés-Tovar, Salvador Alarcón, Julian Oikawa, Horacio Zamudio-Meza, Gloria Benítez-King
Dim light exposure of the mother during pregnancy has been proposed as one of the environmental factors that affect the fetal brain development in schizophrenia. Melatonin circulating levels are regulated by the environmental light/dark cycle. This hormone stimulates neuronal differentiation in the adult brain. However, little is known about its role in the fetal human brain development. Olfactory neuronal precursors (ONPs) are useful for studying the physiopathology of neuropsychiatric diseases because they mimic all the stages of neurodevelopment in culture...
May 13, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28499591/chronic-exposure-to-dim-artificial-light-at-night-decreases-fecundity-and-adult-survival-in-drosophila-melanogaster
#20
L K McLay, M P Green, T M Jones
The presence of artificial light at night is expanding in geographical range and increasing in intensity to such an extent that species living in urban environments may never experience natural darkness. The negative ecological consequences of artificial night lighting have been identified in several key life history traits across multiple taxa (albeit with a strong vertebrate focus); comparable data for invertebrates is lacking. In this study, we explored the effect of chronic exposure to different night-time lighting intensities on growth, reproduction and survival in Drosophila melanogaster...
May 10, 2017: Journal of Insect Physiology
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