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https://www.readbyqxmd.com/read/29326073/retinoic-acid-promotes-stem-cell-differentiation-and-embryonic-development-by-transcriptionally-activating-cftr
#1
Xiaofeng Li, Kin Lam Fok, Jinghui Guo, Yan Wang, Zhenqing Liu, Ziyi Chen, Chengdong Wang, Ye Chun Ruan, Sidney Siubun Yu, Hui Zhao, Ji Wu, Xiaohua Jiang, Hsiao Chang Chan
Retinoic acid (RA) plays a pivotal role in many cellular processes; however, the signaling mechanisms mediating the effect of RA are not fully understood. Here, we show that RA transcriptionally upregulates cystic fibrosis transmembrane conductance regulator (Cftr) by promoting the direct binding of its receptor RARα to Cftr promoter in mouse spermatogonia and embryonic stem (ES) cells. The RA/CFTR pathway is involved in the differentiation of spermatogonia and organogenesis during the embryo development of Xenopus laevis...
January 8, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29324498/five-steps-to-successfully-implement-and-evaluate-propensity-score-matching-in-clinical-research-studies
#2
Steven J Staffa, David Zurakowski
In clinical research, the gold standard level of evidence is the randomized controlled trial (RCT). The availability of nonrandomized retrospective data is growing; however, a primary concern of analyzing such data is comparability of the treatment groups with respect to confounding variables. Propensity score matching (PSM) aims to equate treatment groups with respect to measured baseline covariates to achieve a comparison with reduced selection bias. It is a valuable statistical methodology that mimics the RCT, and it may create an "apples to apples" comparison while reducing bias due to confounding...
January 9, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29313573/p-vivax-malaria-presenting-as-thrombotic-microangiopathy
#3
Dharmendra Bhadauria, Harsh Vardhan, Anupma Kaul, Raj Kumar Sharma, Amit Gupta, Narayan Prasad, Manoj Jain
Introduction: Acute kidney injury (AKI) is reported to occur in patients with falciparum malaria but not uncommon with vivax malaria. AKI, anemia, thrombocytopenia and jaundice is a recurrent finding in severe malaria and can mimic as thrombotic microangiopathy (TMA). Relationship of malaria with TMA is unclear till date however evidences suggest their association. Methods & Material: We reviewed our electronic database to evaluate relationship of malaria with TMA, of cases of malaria, jaundice and AKI...
September 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29286157/hsa-mir-212-modulates-the-radiosensitivity-of-glioma-cells-by-targeting-brca1
#4
Xin He, Saijun Fan
Radioresistance remains a major challenge in the treatment of glioma, and the response of patients to radio-therapy varies considerably. MicroRNAs (miRNAs) are involved in various biological processes. The purpose of the present study was to investigate miRNAs involved in the response to radiation in glioma cell lines. Total RNA was isolated from human glioma U251 cells 30 min after γ-ray exposure and hybridized to an miRNA chip array. miRNA expression profiles were analyzed by quantitative real-time PCR...
December 15, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29278769/mir-1275-promotes-cell-migration-invasion-and-proliferation-in-squamous-cell-carcinoma-of-head-and-neck-via-up-regulating-igf-1r-and-ccr7
#5
Min-Da Liu, Hong Wu, Song Wang, Pai Pang, Shan Jin, Chang-Fu Sun, Fa-Yu Liu
PURPOSE: miRNAs can play vital role in migration, invasion and proliferation in Squamous cell carcinoma of head and neck (SCCHN). In our study, we attempted to validate the expression and function of miR-1275 in SCCHN, and we also identified the mechanism by which miR-1275 affects migration, invasion and proliferation of SCCHN. METHODS: Real-time polymerase chain reaction (RT-PCR) was employed to evaluate the expression of miR-1275 in both SCCHN tissues and cell lines...
December 23, 2017: Gene
https://www.readbyqxmd.com/read/29241179/rs739837-polymorphism-in-mir-885-3p-binding-site-within-3-untranslated-region-of-vitamin-d-receptor-is-associated-with-a-decreased-risk-of-pressure-ulcers
#6
Xia Ji, Jinbao Mao, Shuang Zhou
BACKGROUND/AIMS: Accumulative evidence has shown that miR-885-3p plays a crucial role in human carcinogenesis. From miRNA database, we also found that rs739837 polymorphism in miR-885-3p binding site within 3'-untranslated region of Vitamin D receptor (VDR), compromising the suppressive effect of miR-885-3p on VDR. Moreover, Vitamin D is involved in controlling the cell immune response and may play a role in pressure ulcers development. However, whether this polymorphism is actually linked with pressure ulcers remains unclear...
December 12, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29237964/myeloid-sarcoma-a-clinicopathological-study-with-emphasis-on-diagnostic-difficulties
#7
Ranjini Kudva, Vidya Monappa, Girish Solanke, Manna Valiathan, Anuradha C K Rao, V Geetha
BACKGROUND: Myeloid sarcoma (MS) is a rare tumor composed of proliferation of myeloid precursors at extramedullary sites. They can arise de-novo or in association with hematological malignancies, most commonly acute myeloid leukemia. Clinically, it can masquerade as an abscess, cutaneous ulcer, or mass lesion. Morphologically, MS can mimic a variety of small round cell tumors including lymphomas and rhabdomyosarcoma. AIMS: (1) To study the clinical presentations and laboratory findings in patients with MS; (2) to revisit the histomorphological findings and the differential diagnosis of MS; (3) to evaluate the diagnostic role of immunohistochemistry (IHC) and determine the useful markers for accurate diagnosis of MS...
October 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/29218875/mapping-patient-trajectories-using-longitudinal-extraction-and-deep-learning-in-the-mimic-iii-critical-care-database
#8
Brett K Beaulieu-Jones, Patryk Orzechowski, Jason H Moore
Electronic Health Records (EHRs) contain a wealth of patient data useful to biomedical researchers. At present, both the extraction of data and methods for analyses are frequently designed to work with a single snapshot of a patient's record. Health care providers often perform and record actions in small batches over time. By extracting these care events, a sequence can be formed providing a trajectory for a patient's interactions with the health care system. These care events also offer a basic heuristic for the level of attention a patient receives from health care providers...
2018: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/29210531/comparison-of-endoscopic-and-open-resection-of-sinonasal-squamous-cell-carcinoma-a-propensity-score-matched-analysis-of-652-patients
#9
Suat Kılıç, Sarah S Kılıç, Soly Baredes, Richard Chan Woo Park, Omar Mahmoud, Jeffrey D Suh, Stacey T Gray, Jean Anderson Eloy
BACKGROUND: The use of endoscopic resection as an alternative to open surgery for sinonasal malignancies has increased in the past 20 years. METHODS: The National Cancer Database was queried for cases of sinonasal squamous cell carcinoma (SNSCC) without cervical or distant metastases that were treated surgically between 2010 and 2014. They were split into 2 groups based on surgical approach: open or endoscopic. Demographics, facility and insurance type, stage, tumor characteristics, postoperative treatment, 30-day readmission rate, 30- and 90-day mortality, and overall survival (OS) were compared between the 2 groups...
December 6, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29202795/validation-of-an-algorithm-that-determines-stroke-diagnostic-code-accuracy-in-a-japanese-hospital-based-cancer-registry-using-electronic-medical-records
#10
Yasufumi Gon, Daijiro Kabata, Keichi Yamamoto, Ayumi Shintani, Kenichi Todo, Hideki Mochizuki, Manabu Sakaguchi
BACKGROUND: This study aimed to validate an algorithm that determines stroke diagnostic code accuracy, in a hospital-based cancer registry, using electronic medical records (EMRs) in Japan. METHODS: The subjects were 27,932 patients enrolled in the hospital-based cancer registry of Osaka University Hospital, between January 1, 2007 and December 31, 2015. The ICD-10 (international classification of diseases, 10th revision) diagnostic codes for stroke were extracted from the EMR database...
December 4, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/29167797/a-subset-of-dogs-with-presumptive-idiopathic-epilepsy-show-hippocampal-asymmetry-a-volumetric-comparison-with-non-epileptic-dogs-using-mri
#11
Chelsie M Estey, Curtis W Dewey, Mark Rishniw, David M Lin, Jennifer Bouma, Joseph Sackman, Erica Burkland
MRI-acquired volumetric measurements from 100 dogs with presumptive idiopathic epilepsy (IE) and 41 non-epileptic (non-IE) dogs were used to determine if hippocampal asymmetry exists in the IE as compared to the non-IE dogs. MRI databases from three institutions were searched for dogs that underwent MRI of the brain and were determined to have IE and those that were considered non-IE dogs. Volumes of the right and left hippocampi were measured using Mimics(®) software. Median hippocampal volumes of IE and non-IE dogs were 0...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29166807/secondary-malignancies-of-the-bladder-avoiding-the-diagnostic-pitfall
#12
Alexander Feldman, Samuel Borak, Soroush Rais-Bahrami, Jennifer Gordetsky
Although rare, secondary tumors of the bladder can present a diagnostic dilemma to pathologists considering a differential diagnosis of primary bladder cancer. We investigated the clinicopathologic and imaging characteristics of metastatic tumors to the bladder. We retrospectively reviewed the surgical pathology databases from 2 sites from 2013 to 2016, identifying 66 cases of secondary bladder tumors. Clinical, pathologic, and imaging findings were reviewed. Mean age at diagnosis was 63 years (range = 25-87)...
November 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29164581/microrna-30c-suppressed-giant-cell-tumor-of-bone-cell-metastasis-and-growth-via-targeting-hoxa1
#13
L-Y Ni, J-D Zhao, Y-H Lu, W Li, B-L Li, X-C Wang, Q-G Meng
OBJECTIVE: To dissect the functioning mode of miR-30c on giant cell tumor of bone cell metastasis and growth and provide therapeutic targets for giant cell tumor of bone. PATIENTS AND METHODS: By quantitative Real-time polymerase chain reaction (qRT-PCR), miR-30c expression level in 62 pairs of giant cell tumor of bone cells tissue samples and five breast cancer-derived cell lines. Using miR-30c mimics and inhibitors, we analyzed the effects of miR-30c over-expression and knockdown on cell proliferation, invasion, and migration...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29156009/discovering-cancer-vulnerabilities-using-high-throughput-micro-rna-screening
#14
Iva Nikolic, Benjamin Elsworth, Eoin Dodson, Sunny Z Wu, Cathryn M Gould, Pieter Mestdagh, Glenn M Marshall, Lisa G Horvath, Kaylene J Simpson, Alexander Swarbrick
Micro-RNAs (miRNAs) are potent regulators of gene expression and cellular phenotype. Each miRNA has the potential to target hundreds of transcripts within the cell thus controlling fundamental cellular processes such as survival and proliferation. Here, we exploit this important feature of miRNA networks to discover vulnerabilities in cancer phenotype, and map miRNA-target relationships across different cancer types. More specifically, we report the results of a functional genomics screen of 1280 miRNA mimics and inhibitors in eight cancer cell lines, and its presentation in a sophisticated interactive data portal...
November 16, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29156005/abiofilm-a-resource-of-anti-biofilm-agents-and-their-potential-implications-in-targeting-antibiotic-drug-resistance
#15
Akanksha Rajput, Anamika Thakur, Shivangi Sharma, Manoj Kumar
Biofilms play an important role in the antibiotic drug resistance, which is threatening public health globally. Almost, all microbes mimic multicellular lifestyle to form biofilm by undergoing phenotypic changes to adapt adverse environmental conditions. Many anti-biofilm agents have been experimentally validated to disrupt the biofilms during last three decades. To organize this data, we developed the 'aBiofilm' resource (http://bioinfo.imtech.res.in/manojk/abiofilm/) that harbors a database, a predictor, and the data visualization modules...
November 16, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29151988/lumbar-spinal-angiolipoma-with-expanding-left-neural-foramen-mimicking-lumbar-schwannoma-case-report-and-review-of-the-literature
#16
Yener Akyuva, Aylin Gonultas, Numan Karaaslan, Zehra Gulciftci Dagci, Semih Saglik, Mehmet Isyar, Mahir Mahirogullari
Aim: To describe a patient with lumbar angiolipoma mimicking schwannoma in the posterolateral side of the spinal canal with expansion of the left lumbar foramen and to discuss the clinical, radiologic, and surgical features of these lesions with literature. Methods: Without language restriction in this paper, the electronic databases; The Cochrane Collaboration the Cochrane, The Cochrane Library (Issue 2 of 12, Feb. 2011), ProQuest, US National Library of Medicine, National Institutes of Health (NLM) and PubMed dating from 1966 September to January Week 2 2017, were searched for comparative experimental studies using the terms: "OR", "AND"...
2017: Open Neurology Journal
https://www.readbyqxmd.com/read/29143999/microrna-27a-3p-inhibits-cell-viability-and-migration-through-down-regulating-dusp16-in-hepatocellular-carcinoma
#17
Jin-Mao Li, Jun Zhou, Zhen Xu, Hai-Jin Huang, Min-Jiang Chen, Jian-Song Ji
MicroRNA (miRNA or miR) has been shown to play an important role in the initiation and development in many different cancers. Here, we demonstrated down-regulated expression of miR-27a-3p in hepatocellular carcinoma (HCC) tissues in comparison with that in adjacent normal liver tissues based on the TCGA database. Cells viability and apoptosis was measured by CCK-8 and flow cytometry assay. Cell invasion and migration was measured by Transwell and wound healing assay. The effect of miR-27a-3p on DUSP16 expression was evaluated by luciferase assays, and western blot assay...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29133384/estrogen-and-high-fat-diet-induced-alterations-in-c57bl-6-mice-endometrial-transcriptome-profile
#18
Yali Cheng, Qiaoying Lv, Bingying Xie, Bingyi Yang, Weiwei Shan, Chengcheng Ning, Bing Li, Liying Xie, Chao Gu, Xuezhen Luo, Xiaojun Chen, Qin Zhu
Unopposed estrogen stimulation and insulin resistance are known to play important roles in endometrial cancer (EC), but the interaction between these two factors and how they contribute to endometrial lesions are not completely elucidated. To investigate the endometrial transcriptome profile and the associated molecular pathway alterations, we established an ovariectomized C57BL/6 mouse model treated with subcutaneous implantation of 17-β estradiol (E2) pellet and/or high-fat diet (HFD) for 12 weeks to mimic sustained estrogen stimulation and insulin resistance...
November 13, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29132626/early-hospital-mortality-prediction-of-intensive-care-unit-patients-using-an-ensemble-learning-approach
#19
Aya Awad, Mohamed Bader-El-Den, James McNicholas, Jim Briggs
BACKGROUND: Mortality prediction of hospitalized patients is an important problem. Over the past few decades, several severity scoring systems and machine learning mortality prediction models have been developed for predicting hospital mortality. By contrast, early mortality prediction for intensive care unit patients remains an open challenge. Most research has focused on severity of illness scoring systems or data mining (DM) models designed for risk estimation at least 24 or 48h after ICU admission...
December 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29128327/clinical-predictors-of-stroke-mimics-in-patients-treated-with-recombinant-tissue-plasminogen-activator-according-to-a-normal-multimodal-computed-tomography-imaging
#20
Stephane Olindo, Martin Chardonnet, Pauline Renou, Cyrielle Coignion, Sabrina Debruxelles, Mathilde Poli, Sharmila Sagnier, François Rouanet, Igor Sibon
BACKGROUND: Multimodal computed tomography imaging (MCTI) is increasingly used for rapid assessment of acute stroke. We investigated characteristics and final diagnoses of patients treated with recombinant tissue plasminogen activator (rt-PA) while admission imaging was unremarkable. METHODS: From our prospectively collected stroke database (2013-2016), we identified consecutive patients treated with rt-PA on the basis of an unremarkable brain MCTI and assessed with a 24-hour follow-up brain magnetic resonance imaging (MRI)...
November 8, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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