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https://www.readbyqxmd.com/read/29452455/complex-hur-function-in-pancreatic-cancer-cells
#1
REVIEW
Jonathan R Brody, Dan A Dixon
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers with dismal patient outcomes. The underlying core genetic drivers of disease have been identified in human tumor specimens and described in genetically engineered mouse models. These genetic drivers of PDAC include KRAS signaling, TP53 mutations, and genetic loss of the SMAD4 tumor suppressor protein. Beyond the known mutational landscape of PDAC genomes, alternative disrupted targets that extend beyond conventional genetic mutations have been elusive and understudied in the context of PDAC cell therapeutic resistance and survival...
February 16, 2018: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/29452424/age-related-changes-in-survival-and-turnover-rates-of-balsam-fir-abies-balsamea-l-mill-fine-roots
#2
Marek J Krasowski, Michael B Lavigne, Michael A Szuter, Jakub Olesinski, John A Kershaw, Elizabeth McGarrigle
Fine-root (≤2 mm) demographics change as forests age, but the direction and extent of change are unknown. Knowledge of the change and understanding of causes will improve predictions of climate change impacts. We used minirhizotrons at three young and three mature balsam fir (Abies balsamea (L.) Mill.) sites to measure median lifespan (MLS) for each site and for annual cohorts. We computed turnover rate from the inverse of MLS (Tinv) and calculated a second turnover rate (T) from annual mortality, annual production and previous year-end standing crop...
February 14, 2018: Tree Physiology
https://www.readbyqxmd.com/read/29452419/temozolomide-associated-hypermutation-in-gliomas
#3
Serah Choi, Yao Yu, Matthew R Grimmer, Michael Wahl, Susan M Chang, Joseph F Costello
Low-grade gliomas cause considerable morbidity and most will recur after initial therapy. At recurrence, low-grade gliomas can undergo transformation to high-grade gliomas (grade III or grade IV), which are associated with worse prognosis. Temozolomide (TMZ) provides survival benefit in patients with glioblastomas (GBMs) but its value in patients with low-grade gliomas is less clear. A subset of TMZ-treated, IDH-mutant, low-grade astrocytomas recur as more malignant tumors with thousands of de novo, coding mutations bearing a signature of TMZ-induced hypermutation...
February 14, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29452402/mitotane-monotherapy-in-patients-with-advanced-adrenocortical-carcinoma
#4
Felix Megerle, Wiebke Herrmann, Wiebke Schloetelburg, Cristina L Ronchi, Alina Pulzer, Marcus Quinkler, Felix Beuschlein, Stefanie Hahner, Matthias Kroiss, Martin Fassnacht
Context: While mitotane is the only approved drug for the treatment of adrenocortical carcinoma (ACC), data on monotherapy in advanced disease is still scarce. Objective: To assess the efficacy of mitotane in advanced ACC in a contemporary setting and to identify predictive factors. Design/Setting: Multicenter cohort study of three German referral centers. Patients: 127 patients with advanced ACC treated with mitotane monotherapy...
February 14, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29452395/mini-extracorporeal-circulation-technology-conventional-bypass-and-prime-displacement-in-isolated-coronary-and-aortic-valve-surgery-a-propensity-matched-in-hospital-and-survival-analysis
#5
Priyadharshanan Ariyaratnam, Lindsay A Mclean, Alexander Cale, Mubarak A Chaudhry, Ajith Vijayan, Neil Richards, Martin A Jarvis, Yama Haqzad, Dumbor Ngaage, Michael E Cowen, Mahmoud Loubani
OBJECTIVES: Conventional cardiopulmonary bypass is the most commonly used means of artificial circulation in cardiac surgery. However, it suffers from the effects of haemodilution and activation of inflammatory/coagulation cascades. Prime displacement (PD) can offset haemodilution and Mini-Extracorporeal Technology (MIECT) can offset both. So far, no study has compared all of these modalities together; hence, we compared the outcomes of these 3 modalities at our institution. METHODS: This was a retrospective analysis of our cardiac surgical database...
February 14, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29452390/effects-of-storage-conditions-on-hatchability-embryonic-survival-and-cytoarchitectural-properties-in-broiler-from-young-and-old-flocks
#6
N Pokhrel, E Ben-Tal Cohen, O Genin, M Ruzal, D Sela-Donenfeld, Y Cinnamon
Storing eggs at low temperature prior to incubation is common practice in the broiler hatchery industry; however, prolonged storage (beyond 7 d) is known to increase early embryonic mortality and reduce chick quality and performance. To better understand the basis of this mortality, we previously published milestone criteria to evaluate morphological and cellular properties of the freshly laid embryo. Using these criteria, in the present study we checked the effects of storage at 18°C and 12°C for up to 28 d on hatchability and chick quality...
February 14, 2018: Poultry Science
https://www.readbyqxmd.com/read/29452346/beyond-second-line-therapy-in-patients-with-metastatic-colorectal-cancer-a-systematic-review
#7
D Arnold, G W Prager, A Quintela, A Stein, S Moreno, N Mounedji, J Taieb
Background: The optimal chemotherapeutic regimen for use beyond the second-line for patients with metastatic colorectal cancer (mCRC) remains unclear. Materials and methods: We systematically searched the Cochrane Database of Systematic Reviews, EMBASE and Medline for records published between January 2002 and May 2017, and cancer congress databases for records published between January 2014 and June 2017. Eligible studies evaluated the efficacy, safety and patient-reported outcomes of monotherapies or combination therapies at any dose and number of treatment cycles for use beyond the second line in patients with mCRC...
February 14, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29452322/end-stage-liver-disease-in-patients-with-intracranial-hemorrhage-is-associated-with-increased-mortality-a-cohort-study
#8
Carlito Lagman, Daniel T Nagasawa, John P Sheppard, Cheng Hao Jacky Chen, Thien Nguyen, Giyarpuram N Prashant, Tianyi Niu, Alexander M Tucker, Won Kim, Nader Pouratian, Fady M Kaldas, Ronald W Busuttil, Isaac Yang
BACKGROUND: End-stage liver disease (ESLD) is a devastating consequence of hepatocyte destruction that is associated with intracranial hemorrhage (ICH). OBJECTIVE: To determine if ESLD in patients with ICH is associated with increased mortality. METHODS: We performed a single-center, retrospective cohort study of 53 patients (33 ESLD and 20 non-ESLD patients) who received neurosurgical care between 2006 and 2017. The exposure of interest was ESLD defined clinically as severely impaired liver function and at least one major complication of liver failure...
February 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29452286/risk-factor-analysis-of-adjacent-segment-disease-requiring-surgery-after-short-lumbar-fusion-the-influence-of-rheumatoid-arthritis
#9
Jin-Sung Park, Kyu-Dong Shim, Young-Sik Song, Ye-Soo Park
BACKGROUND CONTEXT: The influence of rheumatoid arthritis (RA) on the lumbar spine has received relatively little attention compared with cervical spine, and few studies have been conducted for adjacent segment disease (ASD) after lumbar fusion in the patients with RA. PURPOSE: To determine the incidence of ASD requiring surgery (ASDrS) after short lumbar fusion and to evaluate risk factors of ASDrS, including RA. STUDY DESIGN: Retrospective cohort study PATIENT SAMPLE: This study included 479 patients who underwent lumbar spinal fusion of 3 or fewer levels, with the mean follow-up period of 51...
February 13, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29452250/hepcidin-protects-grass-carp-ctenopharyngodon-idellus-against-flavobacterium-columnare-infection-via-regulating-iron-distribution-and-immune-gene-expression
#10
Xiaolei Wei, V Sarath Babu, Li Lin, Yazhen Hu, Yulei Zhang, Xiaoling Liu, Jianguo Su, Jun Li, Lijuan Zhao, Gailing Yuan
Columnaris disease (CD) caused by Flavobacterium columnare (F. columnare) is lack of knowledge on effective treatment measures. Bacterial pathogens require iron as an essential nutrient to infect the host. While hepcidin acts as a master regulator in iron metabolism, its contribution to host defense is emerging as complex and multifaceted. In vitro, recombinant Ctenopharyngodon idellus (C. idellus) hepcidin (CiHep) and synthetic CiHep both showed the ability to increase the expression of hepcidin and ferritin in C...
February 13, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29452245/haploidentical-bone-marrow-transplantation-with-post-transplant-cyclophosphamide-using-non-first-degree-related-donors
#11
Hany Elmariah, Yvette L Kasamon, Marianna Zahurak, Karen W Macfarlane, Noah Tucker, Gary L Rosner, Javier Bolaños-Meade, Ephraim J Fuchs, Nina Wagner-Johnston, Lode J Swinnen, Carol Ann Huff, William H Matsui, Douglas E Gladstone, Shannon R McCurdy, Ivan Borrello, Christian B Gocke, Satish Shanbhag, Kenneth R Cooke, Syed Abbas Ali, Robert A Brodsky, Amy E DeZern, Leo Luznik, Richard J Jones, Richard F Ambinder
Outcomes of nonmyeloablative (NMA) haploidentical (haplo) blood or marrow transplant (BMT) with post-transplantation cyclophosphamide (PTCy) using non-first-degree relatives are unknown. We evaluated 33 consecutive adult patients (median age 56 years) with hematologic malignancies who underwent NMA haplo T-cell replete BMT with PTCy at Johns Hopkins using second- or third-degree related donors. Donors consisted of 10 nieces (30%), 9 nephews (27%), 7 first cousins (21%), 5 grandchildren (15%), and 2 uncles (6%)...
February 13, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29452230/a-regulatory-circuitry-between-mir-193a-mir-600-and-wt1-enhances-leukemogenesis-in-acute-myeloid-leukemia
#12
Haiying Li, Chongyun Xing, Bin Zhou, Haige Ye, Jianhua Feng, Jianbo Wu, Shenmeng Gao
The aberrant overexpression of the Wilm's tumor-1 (WT1) in acute myeloid leukemia (AML) plays an important role in blast cell survival through enhancing proliferation and inhibiting apoptosis. However, the mechanism underlying the overexpression of WT1 remains unclear. Here, we identified miR-193a (miR-193a-5p) and miR-600 targeting and degrading WT1. MiR-193a and miR-600 synergistically reduced WT1 expression and suppressed the activity of a luciferase reporter through binding coding sequence (CDS) and 3'-untranslated regions (3'UTR) of WT1 mRNA, respectively...
February 13, 2018: Experimental Hematology
https://www.readbyqxmd.com/read/29452228/a-bach2-gene-variant-is-associated-with-postoperative-recurrence-of-crohn-s-disease
#13
Michael R Laffin, Richard N Fedorak, Eytan Wine, Bryan Dicken, Karen L Madsen
BACKGROUND: Crohn's disease often requires intestinal resection, which is not considered curative. Repeat surgical intervention is necessary in over half of the patients following their initial operation. Although many genetic loci are implicated in Crohn's disease, few have been associated with post-resection recurrence. STUDY DESIGN: A cohort of Crohn's disease subjects who underwent intestinal resection was analyzed to determine genetic and clinical factors associated with post-resection recurrence...
February 13, 2018: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/29452217/gene-expression-screening-identifies-cdca5-as-a-potential-therapeutic-target-in-acral-melanoma
#14
Tianxiao Xu, Meng Ma, Jie Dai, Sifan Yu, Xiaowen Wu, Huan Tang, Jiayi Yu, Junya Yan, Huan Yu, Zhihong Chi, Lu Si, Xinan Sheng, Chuanliang Cui, Yan Kong, Jun Guo
Acral melanoma (AM) is a rapidly progressing subtype of melanoma with poor prognosis. The complete array of molecular changes that occur during AM metastasis remains unclear. In this study, we compared the gene expression profiles of six primary and 12 lymph node metastatic AM samples by tissue microarray analysis. We found that the expression levels of 396 genes were increased, and that of 766 genes were decreased in the metastatic tissues compared with that in the primary tumors. The top 19 genes upregulated in the metastatic tissue specimens were selected for high-content short interfering (si)RNA screening...
February 13, 2018: Human Pathology
https://www.readbyqxmd.com/read/29452216/upregulation-of-tiam1-contributes-to-cervical-cancer-disease-progression-and-indicates-poor-survival-outcome
#15
Yang Yang, Qunying Wu, Nan Li, Shuanlong Che, Tiefeng Jin, Yunze Nan, Zhenhua Lin, Liyan Chen
T lymphoma invasion and metastasis 1 (Tiam1), a guanine nucleotide exchange factor, is involved in the tumorigenesis of a number of malignancies. This study was aimed to explore the role of Tiam1 in cervical cancer progression, and evaluate the prognostic values. Tiam1 protein expression levels were detected by immunohistochemical (IHC) staining in 174 cervical cancer tissues, 92 of CINs (Cervical intraepithelial neoplasia) and 32 of normal cervical epithelia tissues. Clinicopathological parameters and overall survival data were collected and compared between different Tiam1 statuses...
February 13, 2018: Human Pathology
https://www.readbyqxmd.com/read/29452213/nanoemulsion-of-atovaquone-as-a-promising-approach-for-treatment-of-acute-and-chronic-toxoplasmosis
#16
Sanaz Jafarpour Azami, Amir Amani, Hossein Keshavarz, Roqya Najafi-Taher, Mehdi Mohebali, Mohammad Ali Faramarzi, Mahmood Mahmoudi, Saeedeh Shojaee
Treatment of toxoplasmosis is necessary in congenital form and immunocompromised patients. Atovaquone is a powerful suppressor of protozoan parasites with a broad-spectrum activity, but an extremely low water solubility and bioavailability. In this study, nanoemulsion of this drug was prepared with grape seed oil using spontaneous emulsification method to increase bioavailability and efficacy of atovaquone for treatment of toxoplasmosis. In vitro activity of atovaquone nanoemulsion against T. gondii, RH and Tehran strains, was assessed in HeLa cell culture...
February 13, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29452208/outcome-of-abo-incompatible-adult-living-donor-liver-transplantation-for-patients-with-hepatocellular-carcinoma
#17
Young-In Yoon, Gi-Won Song, Sung-Gyu Lee, Shin Hwang, Ki-Hun Kim, Seok-Hwan Kim, Woo-Hyoung Kang, Hwui-Dong Cho, Eun-Kyoung Jwa, Jae-Hyun Kwon, Eun-Young Tak, Varvara A Kirchner
BACKGROUND & AIMS: Living-donor liver transplantation (LDLT) can simultaneously cure hepatocellular carcinoma (HCC) and underlying liver cirrhosis, improving long-term results in patients with HCC. ABO-incompatible LDLT could expand the living-donor pool, reduce waiting times for deceased-donor liver transplantation, and improve long-term survival for some patients with HCC. METHODS: We retrospectively reviewed the medical records of patients undergoing LDLT for HCC from November 2008 to December 2015 at a single institution in Korea...
February 13, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29452172/joint-evolution-of-dispersal-propensity-and-site-selection-in-structured-metapopulation-models
#18
Tuomas Nurmi, Kalle Parvinen, Vesa Selonen
We propose a novel mathematical model for a metapopulation in which dispersal occurs on two levels: juvenile dispersal from the natal site is mandatory but it may take place either locally within the natal patch or globally between patches. Within each patch, individuals live in sites. Each site can be inhabited by at most one individual at a time and it may be of high or low quality. A disperser immigrates into a high-quality site whenever it obtains one, but it immigrates into a low-quality site only with a certain probability that depends on the time within the dispersal season...
February 13, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29452167/microrna-136-inhibits-proliferation-and-promotes-apoptosis-and-radiosensitivity-of-cervical-carcinoma-through-the-nf-%C3%AE%C2%BAb-pathway-by-targeting-e2f1
#19
Hong-Jie Lu, Pei-Ying Jin, Yao Tang, Shao-Hua Fan, Zi-Feng Zhang, Fang Wang, Dong-Mei Wu, Jun Lu, Yuan-Lin Zheng
AIMS: Several microRNAs (miRs) are expressed aberrantly and associated with progression, tumorigenesis, and prognosis of haematological and solid tumors. The study aimed to identify the effects involved with microRNA-136 (miR-136) on the concurrent enhancement of proliferation, apoptosis and radiosensitivity of cervical carcinoma through the NF-κB signaling pathway by targeting E2F1. MAIN METHODS: Totally 338 patients with cervical carcinoma were recruited in this study...
February 13, 2018: Life Sciences
https://www.readbyqxmd.com/read/29452118/long-term-outcome-of-interrupted-arch-repair-with-direct-anastomosis-and-homograft-augmentation-patch
#20
Mohammed Mohsin Uzzaman, Natasha E Khan, Ben Davies, John Stickley, Timothy J Jones, William J Brawn, David J Barron
BACKGROUND: We analysed outcomes of IAA repair using a standardised technique in order to interpret the role of the arch repair on late outcomes in this complex and heterogeneous group. METHODS: Single institution study from 1988-2015. 120 cases of IAA were divided into four groups: IAA with VSD (iVSD, n=38), IAA with Norwood/DKS (iNor, n=41), IAA with Truncus (iTruncus, n=24) and miscellaneous group (iMisc, n=17). Arch repair performed using a standard technique of direct anastomosis with homograft patch augmentation...
February 13, 2018: Annals of Thoracic Surgery
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