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Bone densitometry

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https://www.readbyqxmd.com/read/28429193/effect-of-non-coherent-infrared-light-led-%C3%AE-945%C3%A2-%C3%A2-%C3%A2-20%C3%A2-nm-on-bone-repair-in-diabetic-rats-morphometric-and-spectral-analyses
#1
Alexandre Greca Diamantino, Renata Amadei Nicolau, Davidson Ribeiro Costa, Alessandra Paes de Barros Almeida, Danila Xênia de Miranda Mato, Marco Antonio de Oliveira, Ana Maria do Espírito Santo
Phototherapy using coherent light (lasers) and non-coherent light (light-emitting diodes (LEDs)) has been investigated for the purpose of biomodulation in biological tissues. Several effects can be expected, including pain moderation, biostimulation of cellular tropism, anti-inflammatory effects, regular circulatory stimulation, and tissue repair. The aim of this study was to evaluate the effect of LED (λ945 ± 20 nm, 48 mW) therapy on the regeneration process in femoral lesions of rats (Wistar). Seven irradiation sessions were held, with a 48-h interval between sessions...
April 20, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28426535/frailty-in-hiv-infected-people-a-new-risk-factor-for-bone-mineral-density-loss
#2
Sylvie Bregigeon, Anne Galinier, Olivia Zaegel-Faucher, Carla E Cano, Véronique Obry, Hélène Laroche, Sophie Trijau, Armelle Saout, Isabelle Poizot-Martin
OBJECTIVE: This study aims to assess the association between bone mineral density (BMD) and frailty in a cohort of HIV-infected patients. DESIGN: A cross-sectional study in an HIV outpatient unit where nearly 1,000 patients are monitored. METHODS: Subjects undergoing bone densitometry were proposed an evaluation of frailty using criteria of the Cardiovascular Health Study (CHS) and the Study of Osteoporotic Fractures (SOF). Frailty markers (FM) were weight-loss, self-reported exhaustion, physical activity, grip strength, chair stands, and slow gait...
April 19, 2017: AIDS
https://www.readbyqxmd.com/read/28399643/the-effect-of-pde5-inhibitors-on-bone-and-oxidative-damage-in-ovariectomy-induced-osteoporosis
#3
Hamit H Alp, Zübeyir Huyut, Serkan Yildirim, Yıldıray Başbugan, Levent Ediz, Mehmet R Şekeroğlu
Osteoporosis is a major public health problem associated with many factors, and it affects more than 50% of women over 50 years old. In the current study, our purpose was to investigate the effects of phosphodiestarase-5 inhibitors on osteoporosis via the nitric oxide/3',5'-cyclic guanosine monophosphate/protein kinase G signalling pathway. A total of 50 female albino Wistar rats were separated into five groups. The first group was appointed as the healthy control group with no ovariectomy. All animals in the other groups underwent a bilateral ovariectomy...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28396004/gender-identity-and-bone-densitometry
#4
REVIEW
Ian Hammond, Brian Lentle, Lucretia van den Berg, Megan Vitols-McKay
No abstract text is available yet for this article.
April 7, 2017: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/28381870/cardiovascular-calcification-and-subcortical-bone-demineralization-in-hypertension
#5
Chiara Cirillo, Giancarlo Bilancio, Francesco Natale, Claudia Concilio, Maria Giovanna Russo, Paolo Calabrò, Massimo Cirillo
The present study investigated cardiovascular calcification, peripheral bone mineral density (BMD), and lab indices in hypertensive patients aged 55-74 years without severe kidney dysfunction. Cardiovascular calcification was investigated by ultrasound examinations at eight sites: aortic valve, left and right common carotid artery, left and right carotid artery bifurcation, left and right internal carotid artery, and abdominal aorta. The presence/absence of calcification at each site was coded as 1/0, respectively, for the calculation of a cumulative score...
April 6, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28376262/the-effects-of-iterative-reconstruction-and-kernel-selection-on-quantitative-computed-tomography-measures-of-lung-density
#6
Alfonso Rodriguez, Frank N Ranallo, Philip F Judy, Sean B Fain
PURPOSE: To determine the effects of iterative reconstruction (IR) and high frequency kernels on quantitative computed tomography (qCT) density measures at reduced X-ray dose. MATERIALS AND METHODS: The COPDGene 2 Phantom (CTP 698, The Phantom Laboratory, Salem, NY) with four embedded lung mimicking foam densities (12lb, 20lb, and 4lb), as well as water, air, and acrylic reference inserts was imaged using a GE 64 slice CT750 HD scanner in helical mode with four current-time products ranging from 12-100 mAs...
April 4, 2017: Medical Physics
https://www.readbyqxmd.com/read/28374668/morphometric-and-densitometric-analysis-of-heterochromatin-during-cell-differentiation-using-the-leukaemic-granulocytic-lineage-as-a-convenient-model
#7
K Smetana, D Mikulenková, H Klamová
Granulocytic early progenitors and terminally differentiated - mature granulocytes with segmented nuclei were studied using computer-assisted diameter and heterochromatin optical image densitometry to provide more information on the nuclear size and heterochromatin condensation state. Bone marrow smears of patients suffering from chronic myeloid leukaemia untreated as well as treated with "specific" anti-leukaemic therapy with imatinib mesylate are a convenient model for such study because they possess a satisfactory number of cells for diameter and optical density measurements...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/28345842/bone-mineral-density-in-survivors-of-childhood-acute-lymphoblastic-leukemia
#8
Farzaneh Rohani, Khadijeh Arjmandi Rafsanjani, Gholamreza Bahoush, Mansoureh Sabzehparvar, Mohammad Ahmadi
Background: The objective of this study was to evaluate bone mineral density (BMD) after completion of treatment for childhood acute lymphoblastic leukemia (ALL). Methods: In this cross-sectional study, 103 survivors of ALL aged 13.5 ± 0.45 who completed their treatment at least one year earlier were enrolled. Among these, 49.5% and 51.5% received chemotherapy alone and chemotherapy plus cranial radiotherapy, respectively. Bone mineral content, BMD, and bone mineral apparent density in the lumbar spine (LS), femoral neck (FN) and forearm were assessed using dual-energy X-ray absorptiometry (DEXA)...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28343024/sex-estimation-with-the-total-area-of-the-proximal-femur-a-densitometric-approach
#9
Francisco Curate, Anabela Albuquerque, Izilda Ferreira, Eugénia Cunha
The estimation of sex is a central step to establish the biological profile of an anonymous skeletal individual. Imaging techniques, including bone densitometry, have been used to evaluate sex in remains incompletely skeletonized. In this paper, we present a technique for sex estimation using the total area (TA) of the proximal femur, a two-dimensional areal measurement determined through densitometry. TA was acquired from a training sample (112 females; 112 males) from the Coimbra Identified Skeletal Collection (University of Coimbra, Portugal)...
March 8, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28340823/evaluation-of-bone-disease-in-kidney-transplant-recipients
#10
G Alis, M Alis, T Erturk, A H Karayagiz, I Berber, U Cakir
BACKGROUND: Kidney transplant recipients are known to have bone disease, specifically osteoporosis. In this descriptive clinical study we aimed to evaluate the incidence of osteoporosis and to determine the risk factors among our transplant recipients. METHODS: A total of 109 patients (82 males and 27 females) aged from 19 to 70 years, who had undergone kidney transplantation 12 to 69 months previously, were included in the study. Bone mineral densitometry was performed using dual-energy X-ray absorptiometry...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28328530/imaging-methods-for-bone-mass-evaluation-during-childhood-and-adolescence-an-update
#11
Isabela Leite Pezzuti, Adriana Maria Kakehasi, Maria Tereza Filgueiras, Juliana Albano de Guimarães, Isabela Alves Campos de Lacerda, Ivani Novato Silva
The objective of the work was to prepare an update on imaging methods for bone evaluation during childhood and adolescence. The text was based on original and review articles on imaging methods for clinical evaluation of bone mass in children and adolescents up to 20 years old. They were selected from BIREME and PUBMED by means of the following keywords: bone density; osteoporosis/diagnosis; densitometry; tomography; ultrasonography; magnetic resonance imaging; and radiogrammetry and published in Portuguese or English, in the last 10 years (2006-2016)...
March 22, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28326297/coronary-artery-calcium-score-and-bone-metabolism-a-pilot-study-in-postmenopausal-women
#12
Pooneh Salari, Abbasali Keshtkar, Shapour Shirani, Leila Mounesan
BACKGROUND: Since 1991 many studies evaluated the link between cardiovascular diseases and osteoporosis, two age-related conditions, but the main common pathologic pathway has not been determined yet. The histological similarity between arterial calcified plaque and bone matrix and involvement of similar cells and mediators provide a special field of research. Therefore in the present study, we aimed to evaluate the relationship between coronary artery calcium score (CACS) as a surrogate marker of atherosclerosis and bone mediators and parameters in postmenopausal women...
February 2017: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/28321531/bone-quality-in-beta-thalassemia-intermedia-relationships-with-bone-quantity-and-endocrine-and-hematologic-variables
#13
Marina Baldini, A Marcon, F M Ulivieri, S Seghezzi, R Cassin, C Messina, M D Cappellini, G Graziadei
We report the first evaluation of bone quality in 70 thalassemia intermedia (TI) patients (37 males, 33 females, age 41 ± 12 years). Thirty-three patients (47%) had been transfused, 34 (49%) had been splenectomized, 39 (56%) were on iron chelation therapy, and 11 (16%) were on hydroxyurea. Mean hemoglobin was 9.2 ± 1.5 g/dl, median ferritin 537 ng/dl (range 14-4893), and mean liver iron concentration 7.6 ± 6.4 mg Fe/g dw. Fifteen patients (21%) had endocrinopathies, and 29 (41%) had vitamin D deficiency...
March 20, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28298497/anorexia-nervosa-and-bone-densitometry
#14
Havilah Adkins
Anorexia nervosa is a psychological disorder with extensive physical complications that require care and monitoring from a diverse team of health care professionals. Although it can affect people of various ages and both sexes, anorexia most frequently occurs in adolescent girls during a crucial period of skeletal development. This article presents an overview of anorexia nervosa, followed by focused discussions of its effects on bone development, treatment of bone loss, and the radiologic technologist's role in caring for anorexic patients...
March 2017: Radiologic Technology
https://www.readbyqxmd.com/read/28293641/functional-effects-of-prebiotic-fructans-in-colon-cancer-and-calcium-metabolism-in-animal-models
#15
Marisol Rivera-Huerta, Vania Lorena Lizárraga-Grimes, Ibrahim Guillermo Castro-Torres, Mabel Tinoco-Méndez, Lucía Macías-Rosales, Francisco Sánchez-Bartéz, Graciela Guadalupe Tapia-Pérez, Laura Romero-Romero, María Isabel Gracia-Mora
Inulin-type fructans are polymers of fructose molecules and are known for their capacity to enhance absorption of calcium and magnesium, to modulate gut microbiota and energy metabolism, and to improve glycemia. We evaluated and compared the effects of Chicory inulin "Synergy 1®" and inulin from Mexican agave "Metlin®" in two experimental models of colon cancer and bone calcium metabolism in mice and rats. Inulins inhibited the development of dextran sulfate sodium-induced colitis and colon cancer in mice; these fructans reduced the concentration of tumor necrosis factor alpha and prevented the formation of intestinal polyps, villous atrophy, and lymphoid hyperplasia...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28291437/evaluation-of-proximal-femoral-nail-antirotation-and-cemented-bipolar-hemiarthroplasty-with-calcar-replacement-in-treatment-of-intertrochanteric-femoral-fractures-in-terms-of-mortality-and-morbidity-ratios
#16
Erdinç Esen, Hakan Dur, M Baybars Ataoğlu, Tacettin Ayanoğlu, Sacit Turanlı
OBJECTIVES: This study aims to assess the mortality and morbidity rates of patients with intertrochanteric femoral fractures who were performed proximal femoral nail-antirotation (PFNA) or cemented, bipolar hemiarthroplasty with calcar replacement. PATIENTS AND METHODS: A total of 127 patients (42 males, 85 females; mean age 79.2 years; range 55 to 98 years) who were treated due to proximal femoral fracture between January 2008 and January 2011 were compared retrospectively in terms of intraoperative mortality, total mortality, and monthly distribution of mortality rates...
April 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/28291401/pelvic-insufficiency-fracture-pif-incidence-in-patients-treated-with-intensity-modulated-radiation-therapy-imrt-for-gynaecological-or-anal-cancer-single-institution-experience-and-review-of-the-literature
#17
Louis Bazire, Haoping Xu, Jean-Philippe Foy, Malika Amessis, Caroline Malhaire, Kim Cao, Anne De La Rochefordiere, Youlia M Kirova
OBJECTIVE: To summarize the results of pelvic insufficiency fracture (PIF) incidence in patients with anal or gynaecological cancer treated by pelvic intensity-modulated radiation therapy (IMRT). METHODS: The clinical and morphological (CT and/or pelvic MRI) characteristics of patients treated by IMRT at our institution between 2007 and 2014 were analyzed. The global incidence of PIF after external beam radiotherapy and the impact of tumour site (gynaecological or anal cancer) were determined...
May 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28285470/the-effect-of-a-muscle-weight-bearing-and-aerobic-exercise-program-on-the-body-composition-muscular-strength-biochemical-markers-and-bone-mass-of-obese-patients-who-have-undergone-gastric-bypass-surgery
#18
Luciana Campanha-Versiani, Danielle Aparecida Gomes Pereira, Giane Amorim Ribeiro-Samora, Adauto Versiani Ramos, Maria Fatima H de Sander Diniz, Luiz Armando De Marco, Maria Marta Sarquis Soares
BACKGROUND: The effect of an exercise program on the body composition, muscular strength (MS), biochemical markers, and bone mineral density (BMD) of individuals undergoing gastric bypass is unclear. We assessed lean mass (LM), MS, bone remodeling markers, and BMD before and after supervised weight-bearing and aerobic exercise training in obese patients who underwent Roux-en-Y gastric bypass (RYGB). METHODS: This study included 37 obese patients (81.1% women, mean age 38...
March 11, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28282759/japanese-female-kendo-practitioners-are-associated-with-high-radial-bone-mineral-density
#19
Daisuke Matsui, Isao Watanabe, Teruhide Koyama, Etsuko Ozaki, Nagato Kuriyama, Shigeto Mizuno, Yoshiyuki Watanabe
Osteopenia is a condition in which bone mineral density (BMD) is lower than normal. Exercise increases BMD in both the young and adults. This study aimed to compare the radial apparent BMD (aBMD) in Japanese females who are Kendo practitioners (KPs) and those with no regular exercise habits (no-REH). The analysis participants consisted of 45 KPs (mean age: 49.4 years old) and 110 no-REH (mean age: 48.8 years old). Radial aBMD was measured using an ultrasonic bone densitometry system. Radial aBMD in KPs was 196...
September 26, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28282704/comparison-of-bone-density-of-distal-radius-with-hip-and-spine-using-dxa
#20
Leila Amiri, Azita Kheiltash, Shafieh Movassaghi, Maryam Moghaddassi, Leila Seddigh
Osteoporosis diagnosis is usually based on examination of the hip bone and vertebrae density; however, the radius bone has gained attention recently in terms of feasibility and accessibility as it is done by portable devices with proper precision. This study aims to compare hip and spine density with radius, knowing whether radius may be an appropriate alternative for osteoporosis diagnosis. 120 females who were referred to one Densitometry Center checked their skeletal status using a hologic unit for densitometry of spine, femoral neck, and one-third radius...
February 2017: Acta Medica Iranica
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