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https://www.readbyqxmd.com/read/28812969/functional-expression-of-bmp7-receptors-in-oral-epithelial-cells-interleukin-17f-production-in-response-to-bmp7
#1
Kensuke Nishio, Yasumasa Ozawa, Hisanori Ito, Takashi Kifune, Tatsuya Narita, Toshimitsu Iinuma, Nobuhito Gionhaku, Masatake Asano
BACKGROUND: Bone morphogenetic proteins (BMPs) are members of the transforming growth factor-β (TGF-β) superfamily. Recently, BMP7 has been demonstrated to be produced by salivary glands and contribute to embryonic branching in mice. The BMP7 in saliva is thought to be delivered to the oral cavity and is expected to contact with stratified squamous epithelial cells which line the surface of oral mucosa. In this study, we attempted to investigate the effects of BMP7 on oral epithelial cells...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28812683/megafaunal-isotopes-reveal-role-of-increased-moisture-on-rangeland-during-late-pleistocene-extinctions
#2
M Timothy Rabanus-Wallace, Matthew J Wooller, Grant D Zazula, Elen Shute, A Hope Jahren, Pavel Kosintsev, James A Burns, James Breen, Bastien Llamas, Alan Cooper
The role of environmental change in the late Pleistocene megafaunal extinctions remains a key question, owing in part to uncertainty about landscape changes at continental scales. We investigated the influence of environmental changes on megaherbivores using bone collagen nitrogen isotopes (n = 684, 63 new) as a proxy for moisture levels in the rangelands that sustained late Pleistocene grazers. An increase in landscape moisture in Europe, Siberia and the Americas during the Last Glacial-Interglacial Transition (LGIT; ~25-10 kyr bp) directly affected megaherbivore ecology on four continents, and was associated with a key period of population decline and extinction...
April 18, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812528/acute-leukemia-in-horses
#3
Carina J Cooper, Stefan M Keller, Luis G Arroyo, Joanne Hewson, Daniel Kenney, Dorothee Bienzle
Leukemia is broadly divided into acute and chronic lymphocytic and myeloid types based on the proportion of blasts, morphology of cells, and expression of specific antigens on neoplastic cells. Classifying leukemia in horses can be challenging if blasts predominate and since few antibodies to identify cell types are available. The objective of this study was to describe in detail the clinical and pathologic features of acute leukemia in horses. Twelve horses ranging from 0.2 to 25.9 years of age were diagnosed with acute leukemia...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28812463/novel-col1a1-mutation-c-3290g-t-associated-with-severe-form-of-osteogenesis-imperfecta-in-a-fetus
#4
Laura Tanner, Paula Vainio, Minna Sandell, Jukka Laine
Osteogenesis imperfecta is a genetically and clinically heterogenous group of skeletal dysplasias characterized by bone fragility. Its severity ranges from nearly asymptomatic individuals to perinatal lethality. The majority of cases are caused by mutations in either the COL1A1 or the COL1A2 gene coding for alpha 1 and alpha 2 chains of collagen type 1, respectively, and a large number of pathogenic variants of these genes has been identified. We describe a novel COL1A1 mutation associated with prenatally diagnosed severe form of osteogenesis imperfecta...
September 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28812320/the-relationship-between-periodontal-disease-tooth-loss-and-decreased-skeletal-bone-mineral-density-in-ageing-women
#5
Ivana Savić Pavičin, Jelena Dumančić, Tomislav Jukić, Tomislav Badel
AIM: Osteoporosis and periodontitis are both chronic diseases characterised by bone loss. Potential association is of great clinical importance because of multifactorial aetiology and common risk factors. The aim of this study was to determine relationship between bone mineral density (BMD), tooth loss and periodontal status taking into account age, number of years since onset of menopause and educational level. With increasing age, number of years since onset of menopause and lower educational level, decreased BMD, deteriorating periodontal status and greater tooth loss are expected...
August 15, 2017: Gerodontology
https://www.readbyqxmd.com/read/28812219/eminent-sources-of-adult-mesenchymal-stem-cells-and-their-therapeutic-imminence
#6
REVIEW
Dannie Macrin, Joel P Joseph, Aruthra Arumugam Pillai, Arikketh Devi
In the recent times, stem cell biology has garnered the attention of the scientific fraternity and the general public alike due to the immense therapeutic potential that it holds in the field of regenerative medicine. A breakthrough in this direction came with the isolation of stem cells from human embryo and their differentiation into cell types of all three germ layers. However, the isolation of mesenchymal stem cells from adult tissues proved to be advantageous over embryonic stem cells due to the ethical and immunological naivety...
August 15, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28812206/differences-in-femoral-neck-structure-between-elderly-caucasian-and-chinese-populations-a-cross-sectional-study-of-perth-beijing-cohorts
#7
L Wang, B C C Khoo, X G Cheng, K Brown, J R Lewis, Y B Su, Z Guo, K Li, R L Prince
Structural skeletal differences of the femoral neck of older Beijing-Chinese and Perth-Caucasian women were compared; adjusting for frame size-related differences, Beijing-Chinese have lower periosteal width; however, indices of internal bone distribution suggest that Beijing-Chinese may exhibit increased resistance to fracture that may relate to the reduced hip fracture incidence. INTRODUCTION: Ethnic differences in skeletal structure may relate to differences in hip fracture risk in Chinese and Caucasian populations...
August 15, 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28812174/-magnetic-resonance-imaging-mri-diagnostics-in-axial-spondyloarthritis
#8
T Witte, X Baraliakos
BACKGROUND: Axial spondyloarthritis (axSpA) is a frequent disorder, which is difficult to diagnose in the early phase. Currently, magnetic resonance imaging (MRI) of the sacroiliac joints and the spine is frequently applied in this phase, when conventional X rays still provide inconclusive results. OBJECTIVE: To explain the typical pathological results and the role of MRI in diagnosing axSpA. RESULTS: The use of MRI of the sacroiliac joints plays a central role in the assessment of the Spondyloarthritis International Association Society (ASAS) classification criteria of axSpA...
August 15, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28812170/a-novel-approach-to-utilize-icariin-as-icariin-derived-ecm-on-small-intestinal-submucosa-scaffold-for-bone-repair
#9
Mei Li, Chi Zhang, Yi Zhong, Jiyuan Zhao
Icariin (Ic) has been demonstrated as a potent osteoinductive compound for bone tissue engineering. However, toxic side effects of the drug and poor biocompatibility of drug delivery systems (DDSs) still limit its application for bone repair in the clinic. To overcome these disadvantages and utilize the osteoinductivity of Ic, we developed a novel method to utilize Ic as an Ic-derived osteoinductive extracellular matrix (ECM) on small intestinal submucosa (SIS) (Ic-ECM-SIS). The generated Ic-ECM-SIS scaffolds, as a natural construct, exhibited much better biocompatibility (including cell adhesion, cell survival and cell proliferation) than Ic-SIS scaffolds generated by traditional DDSs...
August 15, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28812111/syndrome-of-inappropriate-anti-diuresis-induces-volume-dependent-hypercalciuria
#10
J Grellier, A Jaafar, A Martin, M El Alaoui, C Lebely, I Tack, M Vallet
Hyponatremia is associated with bone demineralization. We hypothesized that, during hyponatremia, calciuria and calcium balance depend on volemic status. We evaluated calciuria in patients with hyponatremia, secondary to SIAD or hypovolemia. Patients with SIAD exhibited a volemic expansion that was associated with hypercalciuria. Calciuria was proportional to markers of volemia. INTRODUCTION: Chronic mild hyponatremia has been associated with bone demineralization of unknown mechanisms...
August 15, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28812035/bioabsorbable-versus-metal-screw-in-the-fixation-of-tibial-tubercle-transfer-a-cadaveric-biomechanical-study
#11
Janne T Nurmi, Ari Itälä, Raine Sihvonen, Petri Sillanpää, Pekka Kannus, Harri Sievänen, Teppo L N Järvinen
BACKGROUND: In tibial tubercle transfer (TTT) procedures, the osteotomized and transferred tibial tubercle is usually fixed into the host bone using metal screws. PURPOSE: To compare the strength of fixation provided by a single bioabsorbable screw versus a metal screw for TTT. STUDY DESIGN: Controlled laboratory study. METHODS: Twenty-two pairs of human cadaveric tibiae were used to compare the fixation strength of a single 4...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28812032/nonoperative-management-of-osteochondritis-dissecans-of-the-knee-progression-to-osteoarthritis-and-arthroplasty-at-mean-13-year-follow-up
#12
Thomas L Sanders, Ayoosh Pareek, Nick R Johnson, James L Carey, Travis G Maak, Michael J Stuart, Aaron J Krych
BACKGROUND: Osteochondritis dissecans (OCD) is a disorder of subchondral bone that commonly affects the knee. PURPOSE: To (1) evaluate the rate of arthritis and knee arthroplasty in a population-based cohort of patients with OCD lesions treated nonoperatively and (2) evaluate factors that may predispose patients to knee osteoarthritis and arthroplasty. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Eighty-six patients (mean age, 21...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28812020/pretreatment-serum-cystatin-c-levels-predict-renal-function-but-not-tumor-characteristics-in-patients-with-prostate-neoplasia
#13
Feilong Yang, Dawei Li, Yu Di, Yongzhen Zhang, Yuanwei Zang, Juchao Ren, Lei Yan, Zunlin Zhou, Hainan Liu, Zhonghua Xu
To evaluate the role of Cystatin C (Cys-C) in tumorigenesis and progression of prostate cancer (PCa), we retrospectively collected the clinical information from the records of 492 benign prostatic hyperplasia (BPH), 48 prostatic intraepithelial neoplasia (PIN), and 173 PCa patients, whose disease was newly diagnosed and histologically confirmed. Pretreatment serum Cys-C levels were compared across the various groups and then analyzed to identify relationships, if any, with clinical and pathological characteristics of the PCa patient group...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28812019/whole-body-spect-ct-versus-planar-bone-scan-with-targeted-spect-ct-for-metastatic-workup
#14
Olivier Rager, René Nkoulou, Nadia Exquis, Valentina Garibotto, Claire Tabouret-Viaud, Habib Zaidi, Gaël Amzalag, Stephanie Anne Lee-Felker, Thomas Zilli, Osman Ratib
PURPOSE: The use of SPECT/CT in bone scans has been widespread in recent years, but there are no specific guidelines concerning the optimal acquisition protocol. Two strategies have been proposed: targeted SPECT/CT for equivocal lesions detected on planar images or systematic whole-body SPECT/CT. Our aim was to compare the diagnostic accuracy of the two approaches. METHODS: 212 consecutive patients with a history of cancer were referred for bone scans to detect bone metastases...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28811932/two-novel-direct-spio-labels-and-in%C3%A2-vivo-mri-detection-of-labeled-cells-after-acute-myocardial-infarct
#15
Riikka M Korpi, Kirsi Alestalo, Timo Ruuska, Eveliina Lammentausta, Ronald Borra, Fredrik Yannopoulos, Siri Lehtonen, Jarkko T Korpi, Elisa Lappi-Blanco, Vesa Anttila, Petri Lehenkari, Tatu Juvonen, Roberto Blanco Sequieros
BACKGROUND: Acute myocardial infarction (AMI) is a leading cause of morbidity and mortality worldwide. Cellular decay due hypoxia requires rapid and validated methods for possible therapeutic cell transplantation. PURPOSE: To develop direct and rapid superparamagnetic iron oxide (SPIO) cell label for a large-animal model and to assess in vivo cell targeting by magnetic resonance imaging (MRI) in an experimental AMI model. MATERIAL AND METHODS: Bone marrow mononuclear cells (BMMNCs) were labeled with SPIO particles using two novel direct labeling methods (rotating incubation method and electroporation)...
August 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/28811848/skull-base-tumors-and-tumor-like-lesions-a-pictorial-review
#16
REVIEW
Akira Kunimatsu, Natsuko Kunimatsu
A number of tumors and tumor-like non-neoplastic lesions with different cell types on histology occur in the skull base. A wide variety in disease and lesion appearance often complicates the process of radiological diagnosis. The main role of radiographic imaging is the detection and characterization of skull base lesions, with evaluation of the extent of invasion or preservation of adjacent critical organs. Evaluation of the skull base anatomy and surgical planning by using image guidance are also important for surgeons...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28811847/a-rare-case-of-adult-rhabdomyosarcoma
#17
Benjamin Sparreboom, Brendan Litton, Julian Yaxley
BACKGROUND: Rhabdomyosarcoma is a rare, soft tissue malignancy, diagnosed particularly in adults. It commonly metastasizes to the bone marrow. We present a rare case of an adult rhabdomyosarcoma which illustrates the importance of magnetic resonance imaging in identifying early changes in the internal bone structure. CASE REPORT: A 50-year-old male presented with acute urinary retention. The patient initially had a CT scan of the lumbar spine which only revealed a protrusion of the L5-S1 intervertebral disc and no apparent cause for the patient's symptoms...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28811793/effectiveness-and-safety-of-percutaneous-vertebroplasty-in-the-treatment-of-spinal-metastatic-tumor
#18
Yilin Liu, Yuqiang Wang, Liang Zhao, Ruipeng Song, Hongyu Tan, Limin Wang
OBJECTIVE: To evaluate the effectiveness, safety and feasibility of percutaneous vertebroplasty in the treatment of spinal metastatic tumor. METHODS: Thirty-four patients with spinal metastatic tumor who received treatment in the First Affiliated Hospital of Zhengzhou University from May 2014 to June 2015 were selected. Totally fifty diseased vertebrae were treated by percutaneous vertebroplasty. The curative effects were evaluated according to visual analogue scale (VAS) score, Oswestry Dability Index (ODI) and dose of pain reliever...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811744/cytogenetic-profile-and-flt3-gene-mutations-of-childhood-acute-lymphoblastic-leukemia
#19
Nawaf Alkhayat, Yasser Elborai, Omer Al Sharif, Mohammad Al Shahrani, Omar Alsuhaibani, Mohammed Awad, Hatem Elghezal, Inesse Ben-Abdallah Bouhajar, Mona Alfaraj, Eman Al Mussaed, Fahad Alabbas, Ghaleb Elyamany
BACKGROUND: Childhood acute lymphoblastic leukemia (ALL) is characterized by recurrent genetic aberrations. The identification of those abnormalities is clinically important because they are considered significant risk-stratifying markers. AIMS: There are insufficient data of cytogenetic profiles in Saudi Arabian patients with childhood ALL leukemia. We have examined a cohort of 110 cases of ALL to determine the cytogenetic profiles and prevalence of FLT3 mutations and analysis of the more frequently observed abnormalities and its correlations to other biologic factors and patient outcomes and to compare our results with previously published results...
2017: Clinical Medicine Insights. Oncology
https://www.readbyqxmd.com/read/28811709/bone-marrow-derived-monocyte-infusion-improves-hepatic-fibrosis-by-decreasing-osteopontin-tgf-%C3%AE-1-il-13-and-oxidative-stress
#20
Veruska Cintia Alexandrino de Souza, Thiago Almeida Pereira, Valéria Wanderley Teixeira, Helotonio Carvalho, Maria Carolina Accioly Brelaz de Castro, Carolline Guimarães D'assunção, Andréia Ferreira de Barros, Camila Lima Carvalho, Virgínia Maria Barros de Lorena, Vláudia Maria Assis Costa, Álvaro Aguiar Coelho Teixeira, Regina Celia Bressan Queiroz Figueiredo, Sheilla Andrade de Oliveira
AIM: To evaluate the therapeutic effects of bone marrow-derived CD11b(+)CD14(+) monocytes in a murine model of chronic liver damage. METHODS: Chronic liver damage was induced in C57BL/6 mice by administration of carbon tetrachloride and ethanol for 6 mo. Bone marrow-derived monocytes isolated by immunomagnetic separation were used for therapy. The cell transplantation effects were evaluated by morphometry, biochemical assessment, immunohistochemistry and enzyme-linked immunosorbent assay...
July 28, 2017: World Journal of Gastroenterology: WJG
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