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https://www.readbyqxmd.com/read/28092867/expression-of-mmp-2-and-timp-1-during-rapid-maxillary-expansion-in-rats
#1
Jianwei Chen, Jing Zhou, Fan Li, Jianfeng Sun, Guifeng Li, Shujuan Zou, Qingsong Ye
OBJECTIVE: The aim of this study was to investigate the expression of MMP-2 and TIMP-1 during midpalatal suture expansion in rats. DESIGN: 72 male Wistar rats were randomly divided into 2 groups: the experimental group and the control group. In the experimental group, opening loops were applied across the midpalatal suture with an initial force of 50g, whereas in the control group, rats were subjected to sham installation of opening loops without activation. On day 1, 4, 7 and 14, nine rats from each group were sacrificed, and the maxillae were dissected and prepared for Immunohistochemistry (IHC) and RT- PCR examination of MMP-2 and TIMP-1 expression...
January 4, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28092679/genome-wide-analysis-of-p53-regulated-transcription-in-myc-driven-lymphomas
#2
C Tonelli, M J Morelli, A Sabò, A Verrecchia, L Rotta, T Capra, S Bianchi, S Campaner, B Amati
The tumour suppressor p53 is a transcription factor that controls cellular stress responses. Here, we dissected the transcriptional programmes triggered upon restoration of p53 in Myc-driven lymphomas, based on the integrated analysis of p53 genomic occupancy and gene regulation. p53 binding sites were identified at promoters and enhancers, both characterized by the pre-existence of active chromatin marks. Only a small fraction of these sites showed the 20 base-pair p53 consensus motif, suggesting that p53 recruitment to genomic DNA was primarily mediated through protein-protein interactions in a chromatin context...
January 16, 2017: Oncogene
https://www.readbyqxmd.com/read/28091931/identifying-anti-host-effectors-in-photorhabdus
#3
Andrea J Dowling
The death of the insect host is an essential part of the life cycle of Photorhabdus, and as a result, this bacterium comes equipped with a dazzlingly large array of toxins and virulence factors that ensure rapid insect death. Elucidation of the key players in insect infection and mortality has therefore proved difficult using traditional microbiological techniques such as individual gene knockouts due to the high level of functional redundancy displayed by Photorhabdus virulence factors. Thus, knockout of any individual toxin gene may serve to delay time to death but not to render the bacteria avirulent due to the continued presence of an array of other toxins and virulence factors in the single-gene mutant...
December 28, 2016: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/28090507/gastric-cancer-in-pregnancy-is-laparoscopic-gastrectomy-with-lymph-node-dissection-feasible-and-safe
#4
Amer Saeed Alshahrani, Moon-Won Yoo
Gastric cancer with pregnancy is rare and usually presents in late and advanced stage. Standard interventions in diagnosing, staging and treatment of cancer may be harmful for the fetus. The treatment of cancer in pregnancy should not differ significantly from the treatment in nonpregnant women. There have been case reports of open gastrectomy for gastric cancer in pregnancy. We present a case of early gastric cancer in a 37-year-old pregnant woman treated with laparoscopic distal gastrectomy with lymph node dissection with no postoperative complications...
January 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28090505/usefulness-of-intraopertive-ultrasonography-during-directional-atherectomy-using-silverhawk-turbohawk-system
#5
Yoong-Seok Park, Seon-Hee Heo, Dong-Ho Hyun, Young-Soo Do, Hong-Suk Park, Kwang-Bo Park, Young-Wook Kim, Yang-Jin Park, Chul-Hyung Lee, Dong-Ik Kim
PURPOSE: Directional atherectomy (DA) was introduced for the management of infrainguinal arterial stenosis or occlusive lesions. The procedure success rate in the DEFINITIVE LE study was determined using radiologic imaging. The aim of our study was to determine the usefulness of intraoperative ultrasonography (USG) during DA for evaluating the early results of this procedure. METHODS: Patients who underwent DA from January to December 2014 were reviewed retrospectively...
January 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28090418/the-forgotten-lumbocostal-ligament-anatomical-study-with-application-to-thoracolumbar-surgery
#6
Erfanul Saker, Gabrielle G Tardieu, Fernando Alonso, Beom Sun Chung, Christian Fisahn, Marios Loukas, Rod J Oskouian, R Shane Tubbs
INTRODUCTION: Most ligaments of the human body have been well studied. However, the lumbocostal ligament has received little attention in the extant medical literature and, to our knowledge, has not undergone anatomical study. Therefore, the present study was performed to better characterize this structure's anatomy and relationships. METHODS: In the prone position, 10 adult cadavers underwent dissection of their lumbocostal ligaments. All specimens were unembalmed and had no history of surgery to the spine...
December 11, 2016: Curēus
https://www.readbyqxmd.com/read/28090065/assessment-of-workplace-air-concentrations-of-formaldehyde-during-and-before-working-hours-in-medical-facilities
#7
Ichiro Higashikubo, Hiroyuki Miyauchi, Satoru Yoshida, Shinsuke Tanaka, Mitsunori Matsuoka, Heihachiro Arito, Akihiro Araki, Hidesuke Shimizu, Haruhiko Sakurai
Workplace air concentrations of formaldehyde (FA) in medical facilities where FA and FA-treated organs were stored and handled were measured before and during working hours and assessed by the official method specified by Work Environment Measurement Law. Sixty-percent of the total facilities examined were judged as inappropriately controlled work environment. The concentrations of FA before working hours by spot sampling were found to exceed 0.1 ppm in some facilities, and tended to increase with increasing volume of containers storing FA and FA-treated materials...
January 13, 2017: Industrial Health
https://www.readbyqxmd.com/read/28089917/micrornas-and-dicer1-are-regulated-by-1-25-dihydroxyvitamin-d-in-prostate-stroma
#8
Shweta Dambal, Angeline A Giangreco, Andres M Acosta, Andrew Fairchild, Zachary Richards, Ryan Deaton, Dennis Wagner, Reinhold Vieth, Peter H Gann, Andre Kajdacsy-Balla, Theodorus Van der Kwast, Larisa Nonn
Vitamin D deficiency increases the risk of lethal prostate adenocarcinomas (PCa) and the majority of older men are deficient. Although PCa arises from the epithelium, the surrounding stroma has hormonal regulatory control over the epithelium and contributes to carcinogenesis. Herein, we describe regulation of microRNAs (miRs) by the active hormone dihydroxyvitamin D (1,25(OH)2D) in human prostate stroma. 1,25(OH)2D binds the vitamin D receptor (VDR) transcription factor to regulate gene expression, including miRs, which have emerged as potent regulators of protein expression...
January 12, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28089784/axillary-management-of-stage-ii-iii-breast-cancer-patients-treated-with-neoadjuvant-systemic-therapy-results-of-calgb-40601-her2-positive-and-calgb-40603-triple-negative
#9
David W Ollila, Constance T Cirrincione, Donald A Berry, Lisa A Carey, William M Sikov, Clifford A Hudis, Eric P Winer, Mehra Golshan
OBJECTIVES: Management of the axilla in stage II/III breast cancer undergoing neoadjuvant systemic therapy (NST) is controversial. To understand current patterns of care, we collected axillary data from two NST trials: HER2-positive (CALGB40601) and triple-negative (CALGB40603). METHODS: Axillary evaluation pre-/post-NST was per the treating surgeon and could include sentinel node biopsy (SNB). Post-NST, node-positive patients were recommended to undergo axillary lymph node dissection (ALND)...
January 12, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28089539/reperfusion-therapy-in-patients-with-acute-ischaemic-stroke-caused-by-cervical-artery-dissection
#10
L A Crespo Araico, R Vera Lechuga, A Cruz-Culebras, C Matute Lozano, A de Felipe Mimbrera, P Agüero Rabes, E Viedma Guiard, C Estévez Fraga, J Masjuan Vallejo
INTRODUCTION: Cervical artery dissection (CAD) is responsible for up to 20% of all ischaemic strokes in patients younger than 45. The benefits of acute-phase reperfusion therapy in these patients have yet to be confirmed. METHODS: We conducted a retrospective review of patients with CAD admitted to a comprehensive stroke centre between 2010 and 2015. We recorded baseline clinical characteristics, treatments, functional outcomes, and mortality. RESULTS: We identified 35 cases of CAD (23 carotid/12 vertebral); mean age was 43...
January 12, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28089497/biomechanical-comparison-of-standard-and-linked-single-row-rotator-cuff-repairs-in-a-human-cadaver-model
#11
Adam F Meisel, Heath B Henninger, F Alan Barber, Mark H Getelman
PURPOSE: The purpose of this study was to evaluate the time zero cyclic and failure loading properties of a linked single-row rotator cuff repair compared with a standard simple suture single-row repair using triple-loaded suture anchors. METHODS: Eighteen human cadaveric shoulders from 9 matched pairs were dissected, and full-thickness supraspinatus tears were created. The tendon cross-sectional area was recorded. In each pair, one side was repaired with a linked single-row construct and the other with a simple suture single-row construct, both using 2 triple-loaded suture anchors...
January 12, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28089486/molecular-genetics-of-human-obesity-a-comprehensive-review
#12
Rajan Kumar Singh, Permendra Kumar, Kulandaivelu Mahalingam
Obesity and its related health complications is a major problem worldwide. Hypothalamus and their signalling molecules play a critical role in the intervening and coordination with energy balance and homeostasis. Genetic factors play a crucial role in determining an individual's predisposition to the weight gain and being obese. In the past few years, several genetic variants were identified as monogenic forms of human obesity having success over common polygenic forms. In the context of molecular genetics, genome-wide association studies (GWAS) approach and their findings signified a number of genetic variants predisposing to obesity...
January 12, 2017: Comptes Rendus Biologies
https://www.readbyqxmd.com/read/28089253/progressive-bilateral-vertebral-artery-dissection-in-a-case-of-osteogenesis-imperfecta
#13
Yuji Kato, Harumitsu Nagoya, Tetsuya Abe, Takeshi Hayashi, Masanori Yasuda, Akira Uchino, Norio Tanahashi, Masaki Takao
A 32-year-old woman with osteogenesis imperfecta (OI) was admitted to the hospital because of a right-sided occipital headache and facial paresthesia. She was diagnosed with lateral medullary syndrome due to right vertebral artery (VA) dissection. She was treated conservatively without antithrombotic therapy. She developed subarachnoid hemorrhage because of contralateral VA dissection 18 days later. This clinical course may reflect the underlying weakness of the vessel wall in OI. In patients with OI, occlusion of a unilateral VA could cause dissection and subsequent rupture of the contralateral VA...
January 11, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28088939/complications-in-the-management-of-closed-high-energy-proximal-tibial-plateau-fractures
#14
Kavin Khatri, Vijay Sharma, Darsh Goyal, Kamran Farooque
PURPOSE: To report complications in the management of complex closed proximal tibial fractures. METHOD: A retrospective study was conducted to analyze the infectious and noninfectious complications encountered in the management of high-energy Schatzker type V and VI tibial plateau fractures. All patients were treated at the level 1 trauma centre between January 2011 and March 2014. Sixty two patients were included in the study. The mean patient age was (43.16 ± 11...
December 1, 2016: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28088877/the-concerted-action-of-type-2-and-type-3-deiodinases-regulates-the-cell-cycle-and-survival-of-basal-cell-carcinoma-cells
#15
Caterina Miro, Raffaele Ambrosio, Maria Angela De Stefano, Daniela Di Girolamo, Emery Di Cicco, Annunziata Gaetana Cicatiello, Giuseppina Mancino, Tommaso Porcelli, Maddalena Raia, Luigi Del Vecchio, Domenico Salvatore, Monica Dentice
BACKGROUND: Thyroid hormones (THs) mediate pleiotropic cellular processes involved in metabolism, cellular proliferation and differentiation. The intracellular hormonal environment can be tailored by the deiodinase enzymes, D2 and D3, which catalyze TH activation and inactivation, respectively. In many cellular systems, THs exert well documented stimulatory or inhibitory effects on cell proliferation, however, the molecular mechanisms by which they control rates of cell cycle progression have not yet been entirely clarified...
January 15, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28088807/posterior-versus-anterior-circulation-stroke-in-young-adults-a-comparative-study-of-stroke-aetiologies-and-risk-factors-in-stroke-among-young-fabry-patients-sifap1
#16
Bettina von Sarnowski, Ulf Schminke, Ulrike Grittner, Christian Tanislav, Tobias Böttcher, Michael G Hennerici, Turgut Tatlisumak, Jukka Putaala, Manfred Kaps, Franz Fazekas, Christian Enzinger, Arndt Rolfs, Christof Kessler
BACKGROUND: Although 20-30% of all strokes occur in the posterior circulation, few studies have explored the characteristics of patients with strokes in the posterior compared to the anterior circulation so far. Especially data on young patients is missing. METHODS: In this secondary analysis of data of the prospective multi-centre European sifap1 study that investigated stroke and transient ischemic attack (TIA) patients aged 18-55 years, we compared vascular risk factors, stroke aetiology, presence of white matter hyperintensities (WMH) and cerebral microbleeds (CMB) between patients with ischaemic posterior circulation stroke (PCS) and those having suffered from anterior circulation stroke (ACS) based on cerebral MRI...
January 14, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28088535/neurobiological-consequences-of-juvenile-stress-a-gabaergic-perspective-on-risk-and-resilience
#17
REVIEW
Anne Albrecht, Iris Müller, Ziv Ardi, Gürsel Çalışkan, David Gruber, Sebastian Ivens, Menahem Segal, Joachim Behr, Uwe Heinemann, Oliver Stork, Gal Richter-Levin
ALBRECHT, A., MÜLLER, I., ARDI, Z., ÇALIŞKAN, G., GRUBER, D., IVENS, S., SEGAL, M., BEHR, J., HEINEMANN, U., STORK, O., and RICHTER-LEVIN, G. Neurobiological consequences of juvenile stress: a GABAergic perspective on risk and resilience. NEUROSCI BIOBEHAV REV XXX-XXX, 2016. - Childhood adversity is among the most potent risk factors for developing mood and anxiety disorders later in life. Therefore, understanding how stress during childhood shapes and rewires the brain may optimize preventive and therapeutic strategies for these disorders...
January 11, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28088517/osborne-mendel-rats-simultaneously-develop-cardiac-and-renal-dysfunction-left-atrial-thrombosis-peripheral-artery-occlusion-and-ascending-aortic-dissection
#18
Makoto Asahina, Hideki Matsumoto, Yoshitaka Yasuhara, Noriko Suzuki, Ritsuko Takami, Michiyasu Takeyama, Ryuichi Tozawa
Although chronic kidney disease (CKD) is strongly associated with onsets of cardiovascular disease (CVD), the pathogenic mechanism between these diseases has not been fully understood. To develop and validate new therapeutic strategies for this complication, appropriate experimental models that reflect the complexity of the underlying pathophysiology are needed. The Osborne-Mendel (OM) rat was identified as an atherosclerosis-prone and a premature-death rat strain among 16 inbred rat strains when fed high-cholesterol containing diet...
January 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28088401/pharmacological-rescue-of-adult-hippocampal-neurogenesis-in-a-mouse-model-of-x-linked-intellectual-disability
#19
Manuela Allegra, Cristina Spalletti, Beatrice Vignoli, Stefano Azzimondi, Irene Busti, Pierre Billuart, Marco Canossa, Matteo Caleo
Oligophrenin-1 (OPHN1) is a Rho GTPase activating protein whose mutations cause X-linked intellectual disability (XLID). How loss of function of Ophn1 affects neuronal development is only partly understood. Here we have exploited adult hippocampal neurogenesis to dissect the steps of neuronal differentiation that are affected by Ophn1 deletion. We found that mice lacking Ophn1 display a reduction in the number of newborn neurons in the dentate gyrus. A significant fraction of the Ophn1-deficient newly generated neurons failed to extend an axon towards CA3, and showed an altered density of dendritic protrusions...
January 11, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28088233/successful-recovery-from-a-subclavicular-ulcer-caused-by-lenvatinib-for-thyroid-cancer-a-case-report
#20
Morimasa Kitamura, Tomomasa Hayashi, Chiaki Suzuki, Shigeru Hirano, Ichiro Tateya, Yo Kishimoto, Koichi Omori
BACKGROUND: There are currently no effective therapeutic methods for locally recurrent, metastatic, or progressive radioactive iodine (RAI)-refractory differentiated thyroid cancer. However, multitargeted tyrosine kinase inhibitors (TKIs) such as lenvatinib or sorafenib have been approved for patients with RAI-refractory differentiated thyroid cancer as a second targeted therapy, and these agents can prolong patient survival. However, several cases have been reported that TKIs have caused fatal complications such as fistula formation or bleeding...
January 14, 2017: World Journal of Surgical Oncology
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