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https://www.readbyqxmd.com/read/28545226/emergence-of-cd26-cancer-stem-cells-with-metastatic-properties-in-colorectal-carcinogenesis
#1
Alvin Ho-Kwan Cheung, Deepak Narayanan Iyer, Colin Siu-Chi Lam, Lui Ng, Sunny K M Wong, Hung-Sing Lee, Timothy Wan, Johnny Man, Ariel K M Chow, Ronnie T Poon, Roberta Pang, Wai-Lun Law
Colorectal cancer results from genetic aberrations which accumulate over a long period of time, with malignant and metastatic properties acquired at a relatively late stage. A subpopulation of CD26+ colorectal cancer stem cells are known to be implicated in metastasis. We quantified CD26+ cancer cells in 11 primary tumor samples by flow cytometry, and showed that tumors having confirmed or suspected metastases harbored a relatively high CD26+ level in these samples. We hypothesized that this subpopulation of cancer stem cells arises in the late stage of carcinogenesis from the bulk of tumor daughter cells which are CD26-...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28543358/transient-arrest-of-germinal-vesicle-breakdown-improved-in-vitro-development-potential-of-buffalo-bubalus-bubalis-oocytes
#2
Sandeep Kumar, Manish Kumar, Sunny Dholpuria, Parul Sarwalia, Vipul Batra, Sachinandan De, Rakesh Kumar, T K Datta
Germinal vesicle breakdown (GVBD) is the first milestone that an oocyte needs to achieve towards completing the maturation and gaining potential to fertilise. Significantly lower in vitro embryo production rate in buffaloes can be attributed to heterogeneity of GVBD occurrence among oocytes obtained from abattoir derived ovaries. Evidence from our earlier work had suggested that different qualities of buffalo oocytes differ significantly in their timing of GVBD. Besides, these oocytes also differ in terms of volume of Akt phosphorylation, which initiates the process of GVBD...
May 25, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28542199/specialized-box-c-d-snornps-act-as-antisense-guides-to-target-rna-base-acetylation
#3
Sunny Sharma, Jun Yang, Rob van Nues, Peter Watzinger, Peter Kötter, Denis L J Lafontaine, Sander Granneman, Karl-Dieter Entian
Box C/D snoRNAs are known to guide site-specific ribose methylation of ribosomal RNA. Here, we demonstrate a novel and unexpected role for box C/D snoRNAs in guiding 18S rRNA acetylation in yeast. Our results demonstrate, for the first time, that the acetylation of two cytosine residues in 18S rRNA catalyzed by Kre33 are guided by two orphan box C/D snoRNAs-snR4 and snR45 -not known to be involved in methylation in yeast. We identified Kre33 binding sites on these snoRNAs as well as on the 18S rRNA, and demonstrate that both snR4 and snR45 establish extended bipartite complementarity around the cytosines targeted for acetylation, similar to pseudouridylation pocket formation by the H/ACA snoRNPs...
May 24, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28541850/repeat-head-ct-not-necessary-for-patients-with-a-negative-initial-head-ct-on-anticoagulation-or-antiplatelet-therapy-suffering-low-altitude-falls
#4
Zachary M Bauman, John M Ruggero, Sunny Squindo, Chris McEachin, Michelle Jaskot, Will Ngo, Scott Barnes, Peter P Lopez
Anticoagulation and antiplatelet (ACAP) medications are increasingly prescribed to patients at high risk for falls. Many trauma centers have developed protocols for obtaining repeat head CT (HCT) for patients with low-altitude falls on ACAP therapy. We assess the need for routine scheduled repeat HCT in this population. Prospective, observational analysis of all low-altitude fall (<6 feet) patients on ACAP therapy evaluated at a Level II trauma center. All low-altitude fall patients with visible or suspected head trauma received an initial HCT...
May 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28539351/bacteriophage-transfer-during-faecal-microbiota-transplantation-in-clostridium-difficile-infection-is-associated-with-treatment-outcome
#5
Tao Zuo, Sunny H Wong, Kelvin Lam, Rashid Lui, Kitty Cheung, Whitney Tang, Jessica Y L Ching, Paul K S Chan, Martin C W Chan, Justin C Y Wu, Francis K L Chan, Jun Yu, Joseph J Y Sung, Siew C Ng
OBJECTIVE: Faecal microbiota transplantation (FMT) is effective for the treatment of recurrent Clostridium difficile infection (CDI). Studies have shown bacterial colonisation after FMT, but data on viral alterations in CDI are scarce. We investigated enteric virome alterations in CDI and the association between viral transfer and clinical outcome in patients with CDI. DESIGN: Ultra-deep metagenomic sequencing of virus-like particle preparations and bacterial 16S rRNA sequencing were performed on stool samples from 24 subjects with CDI and 20 healthy controls...
May 24, 2017: Gut
https://www.readbyqxmd.com/read/28536096/harnessing-facebook-for-smoking-reduction-and-cessation-interventions-facebook-user-engagement-and-social-support-predict-smoking-reduction
#6
Sunny Jung Kim, Lisa A Marsch, Mary F Brunette, Jesse Dallery
BACKGROUND: Social media technologies offer a novel opportunity for scalable health interventions that can facilitate user engagement and social support, which in turn may reinforce positive processes for behavior change. OBJECTIVE: By using principles from health communication and social support literature, we implemented a Facebook group-based intervention that targeted smoking reduction and cessation. This study hypothesized that participants' engagement with and perceived social support from our Facebook group intervention would predict smoking reduction...
May 23, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28534658/dynamic-brain-glucose-metabolism-identifies-anti-correlated-cortical-cerebellar-networks-at-rest
#7
Dardo G Tomasi, Ehsan Shokri-Kojori, Corinde E Wiers, Sunny W Kim, Şukru B Demiral, Elizabeth A Cabrera, Elsa Lindgren, Gregg Miller, Gene-Jack Wang, Nora D Volkow
It remains unclear whether resting state functional magnetic resonance imaging (rfMRI) networks are associated with underlying synchrony in energy demand, as measured by dynamic 2-deoxy-2-[(18)F]fluoroglucose (FDG) positron emission tomography (PET). We measured absolute glucose metabolism, temporal metabolic connectivity (t-MC) and rfMRI patterns in 53 healthy participants at rest. Twenty-two rfMRI networks emerged from group independent component analysis (gICA). In contrast, only two anti-correlated t-MC emerged from FDG-PET time series using gICA or seed-voxel correlations; one included frontal, parietal and temporal cortices, the other included the cerebellum and medial temporal regions...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28534640/fulfil-an-unmet-need-in-copd
#8
Brian J Lipworth, Sunny Jabbal
No abstract text is available yet for this article.
May 23, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28533650/extensive-visceral-calcification-demonstrated-on-99m-tc-mdp-bone-scan-in-patient-with-carcinoma-penis-and-hypercalcemia-of-malignancy
#9
Sunny J Gandhi, Bhavdeep Rabadiya
Hypercalcemia is a common life-threatening complication associated with several malignancies. Parathyroid-related peptide has been shown to cause hypercalcemia in several solid tumors but rarely in penile cancer. We report a case of penile cancer with hypercalcemia causing metastatic visceral calcification in lungs, liver, and stomach detected on bone scan without significant abnormalities on CT scan.
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533639/metastatic-brachial-plexopathy-with-brain-and-spinal-metastasis-in-a-case-of-recurrent-breast-carcinoma-demonstrated-on-18-f-fdg-pet-ct
#10
Sunny J Gandhi, Bhavdeep Rabadiya
We report a case of a 56-year-old woman diagnosed with infiltrating ductal carcinoma of the left breast, who had undergone left modified radical mastectomy followed by radiotherapy and adjuvant chemotherapy. FDG PET-CT showed metastatic brachial plexopathy with intra-spinal and extra-axial brain metastasis. Metastatic brachial plexopathy along with brain and spinal metastasis is a rare condition with very less incidence. The scan also showed left para-sternal anterior chest wall recurrence with antero-superior mediastinal metastasis...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28528857/rare-occurrence-of-giant-metastatic-inguinal-lymph-nodes-in-carcinoma-bladder
#11
Ruchir Aeron, Manoj Kumar, Sunny Goel, Ashok Kumar Sokhal
Inguinal lymph node metastasis of a bladder cancer is a rare scenario. Till date, only four cases of inguinal lymph node metastasis from bladder cancer have been reported in the literature. We report a rare giant inguinal lymph node metastasis of transitional cell carcinoma(TCC) of bladder in a patient after radical cystoprostatectomy. Chemotherapy and radiotherapy were given, but showed no remission.
May 18, 2017: Urology
https://www.readbyqxmd.com/read/28528701/expansion-and-purification-are-critical-for-the-therapeutic-application-of-pluripotent-stem-cell-derived-myogenic-progenitors
#12
Jaemin Kim, Alessandro Magli, Sunny S K Chan, Vanessa K P Oliveira, Jianbo Wu, Radbod Darabi, Michael Kyba, Rita C R Perlingeiro
Recent reports have documented the differentiation of human pluripotent stem cells toward the skeletal myogenic lineage using transgene- and cell purification-free approaches. Although these protocols generate myocytes, they have not demonstrated scalability, safety, and in vivo engraftment, which are key aspects for their future clinical application. Here we recapitulate one prominent protocol, and show that it gives rise to a heterogeneous cell population containing myocytes and other cell types. Upon transplantation, the majority of human donor cells could not contribute to myofiber formation...
May 18, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28528271/exploring-binding-characteristics-and-the-related-competition-of-different-protein-bound-uremic-toxins
#13
Olivier Deltombe, Henriette de Loor, Griet Glorieux, Annemieke Dhondt, Wim Van Biesen, Björn Meijers, Sunny Eloot
Little is known about potential differences in binding characteristics of protein-bound uremic toxins (PBUTs) in patients with chronic kidney disease (CKD) versus healthy controls. The question arises whether eventual differences are attributed to (i) the elevated levels of competing uremic toxins, and/or (ii) post-translational modifications of albumin. We evaluated the binding characteristics of hippuric acid (HA), indole-3-acetic acid (IAA), indoxyl sulfate (IS), and p-cresylsulfate (pCS) by deriving a binding curve in three distinct conditions: (i) serum from healthy controls (healthy serum), (ii) blank serum from hemodialysis patients (blank HD serum; i...
May 17, 2017: Biochimie
https://www.readbyqxmd.com/read/28525610/searching-for-clues-for-eighteen-years-deciphering-the-ecological-determinants-of-cryptococcus-gattii-on-vancouver-island-british-columbia
#14
Emily Sohanna Acheson, Eleni Galanis, Karen Bartlett, Sunny Mak, Brian Klinkenberg
Cryptococcus gattii emerged on Vancouver Island in 1999 for unknown reasons, causing human and animal fatalities and illness. The apparent emergence of this fungus in another temperate area, this time in the Pacific Northwest, suggests the fungus may have expanded its ecological niche. Yet studies that directly examine the potential roles of climatic and land use changes on C. gattii are still lacking. We aim to summarize the existing global literature on the ecology of C. gattii, with particular focus on the gap in knowledge surrounding the potential effects of climatic and land use changes...
May 19, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28518107/a-large-lateral-craniotomy-procedure-for-mesoscale-wide-field-optical-imaging-of-brain-activity
#15
Michael Kyweriga, Jianjun Sun, Sunny Wang, Richard Kline, Majid H Mohajerani
The craniotomy is a commonly performed procedure to expose the brain for in vivo experiments. In mouse research, most labs utilize a small craniotomy, typically 3 mm x 3 mm. This protocol introduces a method for creating a substantially larger 7 mm x 6 mm cranial window exposing most of a cerebral hemisphere over the mouse temporal and parietal cortices (e.g., bregma 2.5 - 4.5 mm, lateral 0 - 6 mm). To perform this surgery, the head must be tilted approximately 30° and much of the temporal muscle must be retracted...
May 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28515934/zolpidem-prescribing-practices-before-and-after-food-and-drug-administration-required-product-labeling-changes
#16
Jessica L Norman, Danielle R Fixen, Joseph J Saseen, Laura M Saba, Sunny A Linnebur
BACKGROUND: Women have higher morning serum zolpidem concentrations than men after taking an evening dose, potentially leading to increased risk of harm. On 19 April 2013, the United States Food and Drug Administration required labeling changes for zolpidem, recommending an initial dose of no greater than 5 mg (immediate release) or 6.25 mg (controlled release) per night in women. OBJECTIVES: The primary objective of this study was to compare prescribing practices before and after the 2013 zolpidem labeling change...
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/28512245/merkel-cell-polyomavirus-small-t-antigen-initiates-merkel-cell-carcinoma-like-tumor-development-in-mice
#17
Monique E Verhaegen, Doris Mangelberger, Paul W Harms, Markus Eberl, Dawn M Wilbert, Julia Meireles, Christopher K Bichakjian, Thomas L Saunders, Sunny Y Wong, Andrzej A Dlugosz
Merkel cell carcinoma (MCC) tumor cells express several markers detected in normal Merkel cells, a non-proliferative population of neuroendocrine cells which arise from epidermis. MCCs frequently contain Merkel cell polyomavirus (MCPyV) DNA and express viral transforming antigens, sT and tLT, but the role of these putative oncogenes in MCC development, and this tumor's cell of origin, are unknown. Using a panel of pre-term transgenic mice, we show that epidermis-targeted co-expression of sT and the cell fate determinant atonal bHLH transcription factor 1 (Atoh1) leads to development of widespread cellular aggregates with histology and marker expression mimicking that of human intraepidermal MCC...
May 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28508837/colorectal-cancer-presenting-as-bone-metastasis
#18
M C Suresh Babu, Sunny Garg, K C Lakshmaiah, K Govind Babu, Rekha V Kumar, D Loknatha, Linu Jacob Abraham, L K Rajeev, K N Lokesh, A H Rudresha, Suparna Ajit Rao
INTRODUCTION: Bone metastasis is a rare site of metastasis, seen in only 3.7-11% of clinical cases. Isolated bone involvement has been reported very rarely in literature. Moreover, the patients who have bone metastasis at presentation are even rare. OBJECTIVES: To discuss the demographic characteristics, carcinoembryonic antigen (CEA) levels, pattern of bone involvement, and their correlation with survival in patients of colorectal cancer that have bone metastasis at the time of presentation...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28499259/systematic-review-of-social-media-interventions-for-smoking-cessation
#19
REVIEW
John A Naslund, Sunny Jung Kim, Kelly A Aschbrenner, Laura J McCulloch, Mary F Brunette, Jesse Dallery, Stephen J Bartels, Lisa A Marsch
BACKGROUND: Popular social media could extend the reach of smoking cessation efforts. In this systematic review, our objectives were: 1) to determine whether social media interventions for smoking cessation are feasible, acceptable, and potentially effective; 2) to identify approaches for recruiting subjects; and 3) to examine the specific intervention design components and strategies employed to promote user engagement and retention. METHODS: We searched Scopus, Medline, EMBASE, Cochrane Central, PsychINFO, CINAHL, and Web of Science through July 2016 and reference lists of relevant articles...
May 2, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28496265/a-pharmacotherapy-capstone-course-to-target-student-learning-and-programmatic-curricular-assessment
#20
Joseph J Saseen, Sunny A Linnebur, Laura M Borgelt, Jennifer Trujillo, Douglas N Fish, Scott Mueller
Objective. To describe how a pharmacotherapy capstone course was used for student learning and programmatic curricular assessment. Design. A pharmacotherapy capstone course was included in the University of Colorado curriculum for 13 years from 2002 through 2014. This 9-credit hour course was the last course prior to Advanced Pharmacy Practice Experiences (APPEs). Students were held accountable for prior learning using complex patient cases and other activities that are seen in APPEs. Application of knowledge, skills, and critical thinking were integrated in this course using exclusively active learning methodologies...
April 2017: American Journal of Pharmaceutical Education
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