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https://www.readbyqxmd.com/read/28538979/stanniocalcin-1-is-an-ocular-hypotensive-agent-and-a-downstream-effector-molecule-that-is-necessary-for-the-intraocular-pressure-lowering-effects-of-latanoprost
#1
Gavin W Roddy, Kimberly B Viker, Nelson S Winkler, Cindy K Bahler, Bradley H Holman, David Sheikh-Hamad, Uttio Roy Chowdhury, W Daniel Stamer, Michael P Fautsch
Purpose: To identify downstream signaling molecules through which intraocular pressure (IOP) is lowered following treatment with the prostaglandin analog latanoprost. Methods: Total RNA and protein isolated from primary human Schlemm's canal cells (n = 3) treated with latanoprost (free acid; 100 nM) were processed for quantitative PCR and Western blot analysis. IOP was evaluated in stanniocalcin-1 (STC-1-/-) and wild-type mice following treatment with latanoprost or Rho kinase inhibitor Y27632...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28538837/microrna-455-suppresses-the-oncogenic-function-of-hdac2-in-human-colorectal-cancer
#2
Q D Mao, W Zhang, K Zhao, B Cao, H Yuan, L Z Wei, M Q Song, X S Liu
Colorectal cancer (CRC) is the fourth leading cause of cancer-induced mortality. Histone deacetylase 2 (HDAC2) is involved in prognosis and therapy of CRC. This study aimed to explore novel therapeutic targets for CRC. The alteration of HDAC2 expression in CRC tissues was estimated by qRT-PCR. After lentivirus transfection, HDAC2 knockdown was confirmed by western blot analysis. The effect of HDAC2 knockdown on cell proliferation was then assessed by 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay...
May 18, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28538835/ghrelin-plasma-levels-gastric-ghrelin-cell-density-and-bone-mineral-density-in-women-with-rheumatoid-arthritis
#3
F A N Maksud, A M Kakehasi, M F B R Guimarães, C J Machado, A J A Barbosa
Generalized bone loss can be considered an extra-articular manifestation of rheumatoid arthritis (RA) that may lead to the occurrence of fractures, resulting in decreased quality of life and increased healthcare costs. The peptide ghrelin has demonstrated to positively affect osteoblasts in vitro and has anti-inflammatory actions, but the studies that correlate ghrelin plasma levels and RA have contradictory results. We aimed to evaluate the correlation between total ghrelin plasma levels, density of ghrelin-immunoreactive cells in the gastric mucosa, and bone mineral density (BMD) in twenty adult women with established RA with 6 months or more of symptoms (mean age of 52...
May 18, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28538804/transitional-metaplasia-in-intestinal-epithelium-of-rats-submitted-to-intestinal-cystoplasty-and-treatment-with-l-lysine
#4
Alessandra Marques Dos Santos, Joao Paulo Ferreira Coelho, Camila de Carvalho Juanes, Rafael Barbosa de Azevedo, Clara Araujo Diniz, Francisco Vagnaldo Fechine Jamacaru, Conceição Aparecida Dornelas
Purpose: To evaluated the effects of L-lysine on the intestinal and urothelial epithelia in cystoplasty in rats. Methods: Twenty-eight 9-week-old rats were assigned to 4 groups: Group A (n=8) cystoplasty followed by administration of L-lysine (150 mg/kg body weight by gavage) for 30 weeks; Group B (n=8) cystoplasty + water for 30 weeks; Group C (n=6) L-lysine for 30 weeks; Group D (n=6) water for 30 weeks. Results: On histopathology with hematoxylin and eosin, mild to moderate hyperplasia transitional was observed in at the site of anastomosis in all animals submitted to cystoplasty (Groups A and B), but "transitional metaplasia" of the intestinal glandular epithelium was more accentuated in Group A (p=0...
April 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28538749/complications-of-hidradenitis-suppurativa
#5
Joyce T Yuan, Haley B Naik
Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease characterized by recurrent painful nodules and abscesses involving intertriginous areas. Repeated episodes of profound inflammation in HS can lead to a number of complications, causing significant morbidity and decreasing quality of life. Complications of HS may affect the skin alone or may have systemic impact. Cutaneous complications of HS include sinus tracts, fistulae, scarring and contractures, squamous cell carcinoma, and lymphedema...
June 2017: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28538641/prehospital-plasma-resuscitation-associated-with-improved-neurologic-outcomes-after-traumatic-brain-injury
#6
Matthew C Hernandez, Cornelius A Thiels, Johnathon M Aho, Elizabeth B Habermann, Martin D Zielinski, James A Stubbs, Donald H Jenkins, Scott P Zietlow
INTRODUCTION: Trauma related hypotension and coagulopathy worsen secondary brain injury in patients with traumatic brain injuries (TBI). Early damage control resuscitation with blood products may mitigate hypotension and coagulopathy. Preliminary data suggest resuscitation with plasma in large animals improve neurologic function after TBI; however, data in humans are lacking. METHODS: We retrospectively identified all poly-trauma patients age >15 years with head injuries undergoing prehospital resuscitation with blood products at a single level I trauma center from 01/2002 to 12/2013...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28538471/foreign-body-response-to-silicone-in-cochlear-implant-electrodes-in-the-human
#7
Jennifer T O'Malley, Barbara J Burgess, Donald Galler, Joseph B Nadol
HYPOTHESIS: Silicone as part of a cochlear implant electrode may be responsible for a foreign body response in the human. BACKGROUND: Clinical evidence of a foreign body response to a cochlear implant has been reported. In a previous study, particulate material found within the fibrous sheath and within macrophages surrounding a cochlear implant has been identified as being consistent with platinum. However, to date, there has been no histologic evidence of a role for silicone in this cellular immune response...
May 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28538400/carbon-monoxide-releasing-molecule-2-suppresses-thrombomodulin-and-endothelial-protein-c-receptor-expression-of-human-umbilical-vein-endothelial-cells-induced-by-lipopolysaccharide-in-vitro
#8
Xianglin Meng, Dongsheng Fei, Mingming Liu, Songlin Yang, Ning Song, Lei Jiang, Kai Kang, Chuanchuan Nan, Yunpeng Luo, Shangha Pan, Mingyan Zhao
OBJECTIVE: The aim of this study was to observe the counter-effect of carbon monoxide-releasing molecule-2 (CORM-2) on lipopolysaccharide (LPS)-suppressed thrombomodulin (TM) and endothelial protein C receptor (EPCR) expressions from human umbilical vein endothelial cell (HUVEC), and to reveal its mechanisms. METHODS: HUVECs were divided into 5 treatment groups, wherein reagents were added simultaneously. TM and EPCR proteins of the cells and the culture medium levels of soluble TM, soluble EPCR, and matrix metalloproteinase-2 (MMP-2) were detected after administration, whereas mRNA levels of TM and EPCR, as well as nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) activity among groups, were also evaluated...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538213/prediction-of-egfr-and-kras-mutation-in-non-small-cell-lung-cancer-using-quantitative-18f-fdg-pet-ct-metrics
#9
Ryogo Minamimoto, Mehran Jamali, Olivier Gevaert, Sebastian Echegaray, Amanda Khuong, Chuong D Hoang, Joseph B Shrager, Sylvia K Plevritis, Daniel L Rubin, Ann N Leung, Sandy Napel, Andrew Quon
This study investigated the relationship between epidermal growth factor receptor (EGFR) and Kirsten rat sarcoma viral oncogene homolog (KRAS) mutations in non-small-cell lung cancer (NSCLC) and quantitative FDG-PET/CT parameters including tumor heterogeneity. 131 patients with NSCLC underwent staging FDG-PET/CT followed by tumor resection and histopathological analysis that included testing for the EGFR and KRAS gene mutations. Patient and lesion characteristics, including smoking habits and FDG uptake parameters, were correlated to each gene mutation...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28538193/ethyl-pyruvate-protects-pc12-cells-from-oxygen-glucose-deprivation-a-potential-role-in-ischemic-cerebrovascular-disease
#10
Wenbo Li, Jiyu Lou, Liping Wei, Hongying Bai, Yaohui Zhang, Yuqing He
The protective potential of ethyl pyruvate (EP) on neuron has been investigated previously. This study was intended to investigate the effects of EP on the severity of oxygen-glucose deprivation (OGD)-induced injury in neural-like PC12 cells. PC12 cells were exposed to OGD condition with or without EP treatment. Then, cell viability, apoptosis, and the expressions of neurotrophic factors were detected. Further, Sprague-Dawley rats were intravenously administered with 5mg/kg EP for 14 days post-middle cerebral artery occlusion (MCAO)...
May 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28538178/wolf-hirschhorn-syndrome-candidate-1-is-necessary-for-correct-hematopoietic-and-b-cell-development
#11
Elena Campos-Sanchez, Nerea Deleyto-Seldas, Veronica Dominguez, Enrique Carrillo-de-Santa-Pau, Kiyoe Ura, Pedro P Rocha, JungHyun Kim, Arafat Aljoufi, Anna Esteve-Codina, Marc Dabad, Marta Gut, Holger Heyn, Yasufumi Kaneda, Keisuke Nimura, Jane A Skok, Maria Luisa Martinez-Frias, Cesar Cobaleda
Immunodeficiency is one of the most important causes of mortality associated with Wolf-Hirschhorn syndrome (WHS), a severe rare disease originated by a deletion in chromosome 4p. The WHS candidate 1 (WHSC1) gene has been proposed as one of the main genes responsible for many of the alterations in WHS, but its mechanism of action is still unknown. Here, we present in vivo genetic evidence showing that Whsc1 plays an important role at several points of hematopoietic development. Particularly, our results demonstrate that both differentiation and function of Whsc1-deficient B cells are impaired at several key developmental stages due to profound molecular defects affecting B cell lineage specification, commitment, fitness, and proliferation, demonstrating a causal role for WHSC1 in the immunodeficiency of WHS patients...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28538144/probing-the-potential-role-of-non-b-dna-structures-at-yeast-meiosis-specific-dna-double-strand-breaks
#12
Rucha Kshirsagar, Krishnendu Khan, Mamata V Joshi, Ramakrishna V Hosur, K Muniyappa
A plethora of evidence suggests that different types of DNA quadruplexes are widely present in the genome of all organisms. The existence of a growing number of proteins that selectively bind and/or process these structures underscores their biological relevance. Moreover, G-quadruplex DNA has been implicated in the alignment of four sister chromatids by forming parallel guanine quadruplexes during meiosis; however, the underlying mechanism is not well defined. Here we show that a G/C-rich motif associated with a meiosis-specific DNA double-strand break (DSB) in Saccharomyces cerevisiae folds into G-quadruplex, and the C-rich sequence complementary to the G-rich sequence forms an i-motif...
May 23, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28538006/evaluation-and-management-of-patch-test-negative-patients-with-generalized-dermatitis
#13
Alison Spiker, Christen M Mowad
BACKGROUND: Patients with generalized dermatitis are common in dermatology practices. Allergic contact dermatitis is often suspected, and patients frequently undergo patch testing. When patch testing result is negative, further evaluation and management of these patients are challenging. OBJECTIVE: The purpose of this study was to survey members of the American Contact Dermatitis Society regarding the evaluation and management of patch test-negative patients with generalized dermatitis...
May 23, 2017: Dermatitis
https://www.readbyqxmd.com/read/28537941/pathophysiology-of-anca-associated-vasculitis
#14
Turki Al-Hussain, Maged H Hussein, Walter Conca, Hadeel Al Mana, Mohammed Akhtar
Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis is characterized as inflammation of small-sized to medium-sized blood vessels and encompasses several clinicopathologic entities including granulomatosis with polyangiitis, microscopic polyangiitis, eosinophilic granulomatosis with polyangiitis, and renal-limited ANCA-associated vasculitis. Over the past several decades, significant progress has been made in understanding the pathophysiology of ANCA-associated vasculitis. Although neutrophils contain a multitude of granular proteins, clinically significant autoantibodies are only recognized against myeloperoxidase and proteinase 3, both of which are present in the azurophilic granules...
May 22, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28537924/genetic-defects-of-the-irf1-mediated-major-histocompatibility-complex-class-i-antigen-presentation-pathway-occur-prevalently-in-the-jak2-gene-in-non-small-cell-lung-cancer
#15
Tao Shen, Zhengming Chen, Zhizhuang Joe Zhao, Jie Wu
Recognition of major histocompatibility complex (MHC) class I antigens on tumor cells by cytotoxic T cells is involved in T cell-mediated tumor immune surveillance and immune checkpoint therapy. The interferon-γ (IFNγ)-IRF1 signaling pathway regulates MHC class I antigen presentation. To examine genetic defects of the IFNγ-IRF1 pathway in non-small cell lung cancer (NSCLC), we analyzed The Cancer Genome Atlas (TCGA) lung adenocarcinoma (LuAd) and lung squamous cell carcinoma (LuSc) data. Loss-of-function (LOF) genetic alterations of the IFNγ-IRF1 pathway genes (IFNGR1, IFNGR2, JAK1, JAK2, STAT1, IRF1) were found in 64 (6...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537908/increased-expression-of-irf8-in-tumor-cells-inhibits-the-generation-of-th17-cells-and-predicts-unfavorable-survival-of-diffuse-large-b-cell-lymphoma-patients
#16
Weijie Zhong, Xin Xu, Zhigang Zhu, Qinghua Du, Hong Du, Li Yang, Yanying Ling, Huabao Xiong, Qingshan Li
The immunological pathogenesis of diffuse large B cell lymphoma (DLBCL) remains elusive. Searching for new prognostic markers of DLBCL is a crucial focal point for clinical scientists. The aim of the present study was to examine the prognostic value of interferon regulatory factor 8 (IRF8) expression and its effect on the development of Th17 cells in the tumor microenvironment of DLBCL patients. Flow cytometry, immunohistochemistry, and quantitative real-time PCR were used to detect the distribution of Th17 cells and related cytokines and IRF8 in tumor tissues from DLBCL patients...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537877/clinical-validation-of-genetic-variants-associated-with-in-vitro-chemotherapy-related-lymphoblastoid-cell-toxicity
#17
Peter A Fasching, Lothar Häberle, Brigitte Rack, Liang Li, Alexander Hein, Arif B Ekici, Andre Reis, Michael P Lux, Julie M Cunningham, Matthias Ruebner, Gergory Jenkins, Brooke Fridley, Andreas Schneeweiss, Hans Tesch, Werner Lichtenegger, Tanja Fehm, Georg Heinrich, Mahdi Rezai, Matthias W Beckmann, Wolfgang Janni, Richard M Weinshilboum, Liewei Wang
Hematotoxicity is one of the major side effects of chemotherapy. The aim of this study was to examine the association between single nucleotide polymorphisms (SNPs) and hematotoxicity in breast cancer patients in a subset of patients of the SUCCESS prospective phase III chemotherapy study. All patients (n = 1678) received three cycles of 5-fluorouracil, epirubicin, and cyclophosphamide (FEC) followed by three cycles of docetaxel or docetaxel/gemcitabine, depending on randomization. Germline DNA was genotyped for 246 SNPs selected from a previous genome-wide association study (GWAS) in a panel of lymphoblastoid cell lines, with gemcitabine toxicity as the phenotype...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28535653/-clinical-pathological-characteristics-of-resectable-papillary-thyroid-microcarcinoma
#18
C L Shi, Y Guo, Y C Lyu, Z A B Y S Nanding, W C Gao, T F Shi, H D Qin, S Y Liu
Objective: To investigate the difference of prognostic factors and recurrence rates between papillary thyroid microcarcinoma (PTMC) and lager papillary thyroid carcinoma (PTC) and analyze the clinical pathological characteristics of PTMC suitable for surgery. Methods: A retrospective analysis on the clinicopathological features, expression level of of v-raf murine sarcoma viral oncogene homolog B1 (BRAF) V600E gene mutation and pigment epithelium-derived factor (PEDF), and postoperative follow-up results of the 251 PTC patients who underwent surgical treatment from October 2011 to October 2013, including 169 cases with PTMC and 82 with lager PTC (Tumor diameter>1 cm)...
May 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28535648/-effect-of-%C3%AE-40p53-isoform-on-enhancing-the-pro-apoptotic-function-of-p53-in-tumor-cells
#19
B S Wang, H W Zhao, L X Qiao, J Q Shan, Q S Hou, D X Chen, H L Guo
Objective: To investigate the effect of Δ40p53, an alternative spliced isoform of p53 lacking the N-ter minus, on the pro-apoptotic function of p53. Methods: The wild-type p53 was ectopically expressed in HCT116-p53(-/-) (endogenous Δ40p53 expression), HCT116-p53(+ /+) (wild-type p53) and H1299 (p53-null) cells by adenoviral delivery, while Δ40p53 plasmid were transfected into these cells to overexpress Δ40p53. The levels of Δ40p53 and p53 mRNA were detected by reverse transcription-polymerase chain reaction (RT-PCR) and quantitative PCR...
May 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28535647/-effects-of-overexpression-of-mir-17-92-gene-cluster-on-the-biological-characteristics-of-prostate-cancer-cells-and-its-mechanism
#20
P Zhou, L Ma, J Zhou, J J Xu, F Liu, F Guo
Objective: To explore the effect and mechanism of over-expression of miR-17-92 gene cluster on the biological characteristics of prostate cancer cells. Methods: DU145 cells were transfected with miR-17-92 gene expression plasmid and clones with stable ectopic miR-17-92 overexpression were established. The cell viabilities of DU145-17-92 and DU145-control cells were monitored by xCELLigence system. Cell proliferation and apoptosis were analyzed by Ki-67 and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay...
May 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
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