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https://www.readbyqxmd.com/read/29150734/the-sirtuin-1-2-inhibitor-tenovin-1-induces-a-nonlinear-apoptosis-inducing-factor-dependent-cell-death-in-a-p53-null-ewing-s-sarcoma-cell-line
#1
Christian Marx, Lisa Marx-Blümel, Nora Lindig, René Thierbach, Doerte Hoelzer, Sabine Becker, Susan Wittig, Roland Lehmann, Hortense Slevogt, Thorsten Heinzel, Zhao-Qi Wang, James F Beck, Jürgen Sonnemann
The sirtuin 1/2 inhibitor tenovin-1 activates p53 and may have potential in the management of cancer. Here, we investigated the responsiveness of Ewing's sarcoma cells to tenovin-1. We examined its effects in two Ewing's sarcoma cell lines with different p53 status, i.e. in p53 wild-type and p53 null cells. Effects were assessed by flow cytometric analyses of cell death, mitochondrial membrane depolarization and reactive oxygen species (ROS) generation, by caspase 3/7 activity measurement, by mRNA expression profiling and by immunoblotting...
November 18, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/29150307/approaching-retention-within-the-adolescent-brain-cognitive-development-study
#2
REVIEW
Sarah W Feldstein Ewing, Linda Chang, Linda B Cottler, Susan F Tapert, Gayathri J Dowling, Sandra A Brown
Retention efforts are critical to maintain relationships with research participants over time. This is especially important for the Adolescent Brain Cognitive Development (ABCD) study, where families are asked to stay engaged with the study throughout the course of 10 years. This high-degree of involvement is essential to longitudinally track child and adolescent development. At a minimum, we will connect with families every 6 months by telephone, and every year in person, with closer contact with the youth directly as they transition into adolescence...
November 11, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29150243/effects-of-n-carbamylglutamate-and-l-arginine-on-steroidogenesis-and-gene-expression-in-bovine-granulosa-cells
#3
T Feng, L F Schütz, B C Morrell, M C Perego, L J Spicer
Feeding N-carbamylglutamate (NCG) and arginine (ARG) improves reproductive measures in pigs and reduces systemic steroid levels in pregnant ewes. We hypothesized that the effects of NCG and ARG on reproduction were due to direct effects on the ovary. Thus, the objectives of this study were to investigate the effects of NCG and ARG on granulosa cell (GC) steroidogenesis, gene expression, and cell proliferation in vitro. GC were collected from small (1-5mm) bovine follicles and treated in vitro with NCG or ARG in serum-free medium for 24h to 48h...
November 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29148079/insm1-a-novel-nuclear-marker-in-merkel-cell-carcinoma-cutaneous-neuroendocrine-carcinoma
#4
Patrick S Rush, Jason N Rosenbaum, Madhuchhanda Roy, Rebecca M Baus, Daniel D Bennett, Ricardo V Lloyd
Merkel cell carcinoma (MCC) is a rare, clinically aggressive, cutaneous neuroendocrine (NE) neoplasm. As a tumor with small, round, blue cells, the histologic differential diagnosis for MCC can include melanoma, metastatic small cell carcinoma (SCC), nodular hematopoietic tumors, basal cell carcinoma (BCC), atypical variants of squamous carcinoma, and the uncommon occurrence of primary cutaneous Ewing sarcoma. In cases with atypical histology or without the classic immunophenotype the diagnosis can be challenging...
November 17, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29145598/pubertal-escape-from-estradiol-negative-feedback-in-ewe-lambs-is-not-accounted-for-by-decreased-esr1-mrna-or-protein-in-kisspeptin-neurons
#5
Michelle N Bedenbaugh, Marcella D'Oliveira, Rodolfo C Cardoso, Stanley M Hileman, Gary L Williams, Marcel Amstalden
In this study, we investigated whether decreased sensitivity to estradiol negative feedback is associated with reduced ESR1 expression in kisspeptin neurons as ewe lambs approach puberty. Lambs were ovariectomized and received no implant (OVX) or an implant containing estradiol (OVX+E). In the middle arcuate nucleus (mARC), ESR1 mRNA was greater in OVX than OVX+E lambs but did not differ elsewhere. Posthoc analysis of LH secretion from OVX+E lambs revealed three patterns of LH pulsatility: low (1-2 pulses/12 h; LF, n=3), moderate (6-7 pulses/12 h; MF, n=6) and high (>10 pulses/12 h; HF, n=5)...
November 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/29145014/ecotracer-analyzing-concentration-of-contaminants-and-radioisotopes-in-an-aquatic-spatial-dynamic-food-web-model
#6
William J Walters, Villy Christensen
Ecotracer is a tool in the Ecopath with Ecosim (EwE) software package used to simulate and analyze the transport of contaminants such as methylmercury or radiocesium through aquatic food webs. Ecotracer solves the contaminant dynamic equations simultaneously with the biomass dynamic equations in Ecosim/Ecospace. In this paper, we give a detailed description of the Ecotracer module and analyze the performance on two problems of differing complexity. Ecotracer was modified from previous versions to more accurately model contaminant excretion, and new numerical integration algorithms were implemented to increase accuracy and robustness...
November 13, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29143983/growth-of-doxorubicin-resistant-undifferentiated-spindle-cell-sarcoma-pdox-is-arrested-by-metabolic-targeting-with-recombinant-methioninase
#7
Kentaro Igarashi, Shukuan Li, Qinghong Han, Yuying Tan, Kei Kawaguchi, Takashi Murakami, Tasuku Kiyuna, Kentaro Miyake, Yunfeng Li, Scott D Nelson, Sarah M Dry, Arun S Singh, Irmina A Elliott, Tara A Russell, Mark A Eckardt, Norio Yamamoto, Katsuhiro Hayashi, Hiroaki Kimura, Shinji Miwa, Hiroyuki Tsuchiya, Fritz C Eilber, Robert M Hoffman
Undifferentiated spindle-cell sarcoma (USCS) is a recalcitrant -cancer in need of individualized therapy. A high-grade USCS from a striated muscle of a patient was grown orthotopically in the right biceps femoris muscle of nude mice to establish a patient-derived orthotopic xenograft (PDOX) model. In a previous study, we evaluated the efficacy of standard first-line chemotherapy of doxorubicin (DOX), gemcitabine (GEM) combined with docetaxel (DOC), compared to pazopanib (PAZ), a multi-targeting tyrosine-kinase inhibitor, in an USCS PDOX model...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29143721/bio-economic-and-operational-feasibility-of-introducing-oestrus-synchronization-and-artificial-insemination-in-simulated-smallholder-sheep-breeding-programmes
#8
S Gizaw, A Tegegne
Low selection intensity due to few selection candidates available at any one time due to thinly spread year-round lambings in villages and prohibitively large nucleus requirements to provide sufficient improved rams to the production tier are the major challenges for designing effective village-based and central nucleus-based breeding programmes, respectively, for smallholder sheep farmers. To tackle these challenges, we used deterministic simulation to design three schemes in village-based programmes introducing hormonal oestrus synchronization (natural oestrus (VNE), single oestrus synchronization (VSE1) and double oestrus synchronization (VSE2)) and three schemes in central nucleus programme introducing artificial insemination (AI) (natural mating with nucleus sizes of 5% (CNM1) and 1% (CNM2) of the total ewe population and natural mating in breeding tier and AI in production tier (CAI))...
November 16, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29142986/cardiac-autonomic-neuropathy-predicts-all-cause-and-cardiovascular-mortality-in-patients-with-end-stage-renal-failure-a%C3%A2-5-year-prospective-study
#9
Dimitrios Doulgerakis, Ioannis Moyssakis, Chris J Kapelios, Ioanna Eleftheriadou, Stamatia Chorepsima, Spyridon Michail, Nikolaos Tentolouris
Introduction: Chronic renal disease is associated with increased cardiovascular (CV) mortality. Cardiac autonomic neuropathy (CAN) is predictive of mortality for diseases that affect the autonomic nervous system. We prospectively evaluated the prognostic value of indexes of left ventricular (LV) function and CAN in all-cause and CV mortality of patients with end-stage renal failure (ESRF). Methods: A total of 133 patients with ESRF were recruited. LV function was evaluated by echocardiography, whereas cardiac autonomic function was assessed using the battery of the 4 standardized tests proposed by Ewing...
July 2017: KI Reports
https://www.readbyqxmd.com/read/29141580/usability-of-human-infinium-methylationepic-beadchip-for-mouse-dna-methylation-studies
#10
Maria Needhamsen, Ewoud Ewing, Harald Lund, David Gomez-Cabrero, Robert Adam Harris, Lara Kular, Maja Jagodic
BACKGROUND: The advent of array-based genome-wide DNA methylation methods has enabled quantitative measurement of single CpG methylation status at relatively low cost and sample input. Whereas the use of Infinium Human Methylation BeadChips has shown great utility in clinical studies, no equivalent tool is available for rodent animal samples. We examined the feasibility of using the new Infinium MethylationEPIC BeadChip for studying DNA methylation in mouse. RESULTS: In silico, we identified 19,420 EPIC probes (referred as mEPIC probes), which align with a unique best alignment score to the bisulfite converted reference mouse genome mm10...
November 15, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/29138758/vaginoscopy-in-ewes-utilizing-a-laparoscopic-surgical-port-device
#11
Jeremiah Easley, Desiree Shasa, Eileen Hackett
Vaginoscopy allows for diagnostic evaluation and treatment of the vaginal vault. A laparoscopic surgical port device and rigid telescope were utilized for serial vaginoscopy in 8 healthy anesthetized ewes. Vaginoscopy examinations were performed in each ewe at days 1, 14, and 28. This technique was well-tolerated and facilitated carbon dioxide vaginal inflation, complete vaginal examination, identification of the cervix, and targeted biopsy collection. No complications were encountered during or following the vaginoscopy procedures...
2017: Journal of veterinary medicine
https://www.readbyqxmd.com/read/29138038/low-dose-betamethasone-acetate-for-fetal-lung-maturation-in-preterm-sheep
#12
Augusto F Schmidt, Matthew W Kemp, Judith Rittenschober-Böhm, Paranthaman S Kannan, Haruo Usuda, Masatoshi Saito, Lucy Furfaro, Shimpei Watanabe, Sarah Stock, Boris W Kramer, John P Newnham, Suhas G Kallapur, Alan H Jobe
BACKGROUND: Antenatal steroids (ANS) are standard of care for women at risk of preterm delivery; however ANS dosing and formulation have not been adequately evaluated. The standard clinical 2-dose treatment with betamethasone-acetate+betamethasone-phosphate (Beta-P+Beta-Ac) is more effective than 2 doses of Beta-P for inducing lung maturation in preterm fetal sheep. We hypothesized that the slowly-released Beta-Ac component induces similar lung maturation to Beta-P+Beta-Ac with decreased dose and fetal exposure...
November 11, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29137911/effect-of-supplementing-a-diet-with-monensin-sodium-and-saccharomyces-cerevisiae-on-reproductive-performance-of-ghezel-ewes
#13
Leila Ahmadzadeh, Ali Hosseinkhani, Hossein Daghighkia
Effect of supplementing a diet, in an attempt to enhance reproduction, with monensin sodium and Saccharomyces cerevisiae yeast on reproductive performance was investigated during the breeding season using 44 Ghezel ewes (body weight 56.97±7.47kg, age 2-5 years and body condition score (BCS) 2.5) which were allocated randomly in equal numbers to the four dietary treatments as follows: 1) Basal diet plus supplemental feed (450g/ewe/d) plus monensin sodium (30mg/ewe/d) (MS); 2) Basal diet plus supplemental feed (450 g/ewe/d) plusSaccharomyces cerevisiae yeast (4×10(9)CFU/ewe/d) (SC); 3) Basal diet plus supplemental feed (450g/ewe/d) (FG); 4) Basal diet (only grazing on pasture, Control; G)...
November 11, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29137013/combination-of-ewing-test-heart-rate-variability-and-heart-rate-turbulence-analysis-for-early-diagnosis-of-diabetic-cardiac-autonomic-neuropathy
#14
Kun Lin, Liling Wei, Zhihua Huang, Qiong Zeng
The aim of this study was to compare and analyze Ewing test, heart rate variability (HRV), and heart rate turbulence (HRT) in the diagnosis of cardiac autonomic neuropathy (CAN) in diabetic patients.Ninety diabetic patients (age 18-78) and 20 nondiabetic control subjects were studied. Standard Ewing test and 24-hour Holter was performed in all participants to evaluate CAN. Patients with Ewing score ≥2 were classified as CAN+.The rate of CAN+ in diabetic patients [44.4% (40/90)] was higher than that in the controls [5% (1/20)] (P < ...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136686/-clinicopathologic-and-molecular-characteristics-of-malignant-gastrointestinal-neuroectodermal-tumors
#15
M Zhao, T W Zhao, J Ma, C Y Wu, L Chen, G Q Ru, X L He
Objective: To investigate the clinicopathologic and molecular characteristics, diagnostic, differential diagnostic and prognostic features of malignant gastrointestinal neuroectodermal tumor. Methods: Two cases of malignant gastrointestinal neuroectodermal tumor were retrieved; the clinical and radiologic features, histomorphology, immunophenotype, molecular genetics and prognosis were analyzed and the relevant literature reviewed. Results: Case 1 was a 57-year-old male, presented with recurrent abdominal pain and melena...
November 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29134942/intramammary-infusion-of-a-live-culture-of-lactococcus-lactis-in-ewes-to-treat-staphylococcal-mastitis
#16
Sebastian Alessandro Mignacca, Simone Dore, Liliana Spuria, Pietro Zanghì, Benedetta Amato, Ilaria Duprè, Federica Armas, Elena Biasibetti, Cristina Camperio, Stefano A Lollai, Maria Teresa Capucchio, Eugenia Agnese Cannas, Vincenzo Di Marco Lo Presti, Cinzia Marianelli
PURPOSE: Alternatives to antibiotic therapy for mastitis in ruminants are needed. We present an evaluation, in two trials, of the efficacy of an intramammary infusion of a live culture of Lactococcus lactis for the treatment of subclinical and clinical mastitis in ewes. METHODOLOGY: In total, 67 animals were enrolled: 19 lactating ewes (study 1), including healthy (N=6) and coagulase-negative staphylococci (CNS)-infected ewes (N=13); and 48 lactating ewes (study 2) with either CNS mastitis (N=32), or Staphylococcus aureus mastitis (N=16), for a total of 123 mammary glands...
November 14, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29134689/effectiveness-of-controlled-internal-drug-release-device-treatment-to-alleviate-reproductive-seasonality-in-anestrus-lactating-or-dry-barki-and-rahmani-ewes-during-non-breeding-season
#17
M Y El-Mokadem, Anm Nour El-Din, T A Ramadan, A M Rashad, T A Taha, M A Samak, M H Salem
This study aimed to evaluate the effectiveness of hormonal treatments on ovarian activity and reproductive performance in Barki and Rahmani ewes during non-breeding season. Forty-eight multiparous ewes, 24 Barki and 24 Rahmani ewes were divided into two groups, 12 lactating and 12 dry ewes for each breed. Controlled internal drug release (CIDR) device was inserted in all ewes for 14 days in conjunction with intramuscular 500 IU equine chronic gonadotrophin (eCG) at day of CIDR removal. Data were analysed using PROC MIXED of SAS for repeated measures...
November 14, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29126711/home-based-program-of-maintaining-unresponsiveness-in-children-with-allergic-reactions-to-larger-amounts-of-peanuts
#18
Peter D Arkwright, Vibha Sharma, Carol I Ewing, Stephen M Hughes
No abstract text is available yet for this article.
November 7, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29126131/continuous-kisspeptin-restores-luteinizing-hormone-pulsatility-following-cessation-by-a-neurokinin-b-antagonist-in-female-sheep
#19
Iain J Clarke, Qun Li, Belinda A Henry, Robert P Millar
Pulsatile secretion of gonadotropin releasing hormone (GnRH) drives pulsatile secretion of luteinizing hormone (LH), with evidence that this depends upon kisspeptin (Kiss) input to GnRH neurons. Kiss administration causes acute GnRH/LH secretion and electrophysiological data suggest that Kiss neurons may act in a phasic manner to drive GnRH secretion, but there is not definitive evidence for this. The product of the Kiss1 gene is proteolytically cleaved to smaller products and the 10 amino-acid C-terminal product (Kiss-10) displays full bioactivity...
November 3, 2017: Endocrinology
https://www.readbyqxmd.com/read/29125559/endotoxin-induced-inflammation-suppresses-the-effect-of-melatonin-on-the-release-of-lh-from-the-ovine-pars-tuberalis-explants-ex-vivo-study
#20
Karolina Wojtulewicz, Dorota Tomaszewska-Zaremba, Andrzej Przemysław Herman
The secretion of the hormone melatonin reliably reflects environmental light conditions. Among numerous actions, in seasonal breeders, melatonin may regulate the secretion of the gonadotropins acting via its corresponding receptors occurring in the Pars Tuberalis (PT). However, it was previously found that the secretory activity of the pituitary may be dependent on the immune status of the animal. Therefore, this study was designed to determine the role of melatonin in the modulation of luteinizing hormone (LH) secretion from the PT explants collected from saline- and endotoxin-treated ewes in the follicular phase of the oestrous cycle...
November 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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