keyword
MENU ▼
Read by QxMD icon Read
search

bone perfusion

keyword
https://www.readbyqxmd.com/read/29436706/low-intensity-pulsed-ultrasound-increases-blood-vessel-size-during-fracture-healing-in-patients-with-a-delayed-union-of-the-osteotomized-fibula
#1
Clara M Korstjens, Sjoerd Rutten, Peter A Nolte, Marion A van Duin, Jenneke Klein-Nulend
Disturbed vascularity leads to impaired fracture healing. Since low-intensity pulsed ultrasound (LIPUS) increases new bone formation in delayed-unions, we investigated whether LIPUS increases blood supply in delayed-unions of the osteotomized fibula, and if LIPUS-increased bone formation is correlated to increased blood supply. Blood vessel parameters were analysed using histology, immunohistochemistry, and histomorphometric analysis as well as their correlation with bone formation and resorption parameters...
February 13, 2018: Histology and Histopathology
https://www.readbyqxmd.com/read/29421564/high-density-lipoprotein-mimicking-nanodiscs-carrying-peptide-for-enhanced-therapeutic-angiogenesis-in-diabetic-hindlimb-ischemia
#2
Hyun-Ji Park, Rui Kuai, Eun Je Jeon, Yoojin Seo, Youngmee Jung, James J Moon, Anna Schwendeman, Seung-Woo Cho
Therapeutic strategies using endogenous stem cell mobilizer can provide effective cell-free therapy for addressing various ischemic diseases. In particular, substance P (SP) exhibited therapeutic regeneration by facilitating mobilization of endogenous stem cells from bone marrow to the injured sites. However, its therapeutic effect has been limited due to short half-life and rapid degradation of administered SP peptides in vivo. Here we sought to develop high-density lipoprotein (HDL)-mimicking nanodiscs conjugated with SP (HDL-SP) in order to increase the in vivo half-life, bone marrow targeting, and therapeutic efficacy of SP for the treatment of diabetic peripheral ischemia...
January 19, 2018: Biomaterials
https://www.readbyqxmd.com/read/29417635/magnetic-resonance-imaging-following-regional-limb-perfusion-of-gadolinium-contrast-medium-in-26-horses
#3
S Aarsvold, M Solano, J Garcia-Lopez
BACKGROUND: Systemic administration of gadolinium contrast medium is common in small animals to increase lesion conspicuity and determine vascularisation of lesions identified with magnetic resonance imaging (MRI); however, the large volume required for systemic administration limits its use in equine patients. OBJECTIVES: The purpose of this study was to assess the feasibility of administering a low dose of contrast medium via venous regional limb perfusion. STUDY DESIGN: Prospective clinical study...
February 8, 2018: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29409311/effect-of-multiple-intraperitoneal-injections-of-human-bone-marrow-mesenchymal-stem-cells-on-cuprizone-model-of-multiple-sclerosis
#4
Mohsen Marzban, Kazem Mousavizadeh, Masoomeh Bakhshayesh, Nasim Vousooghi, Gelareh Vakilzadeh, Anahita Torkaman-Boutorabi
Background: Bone marrow mesenchymal stem cells (BM-MSCs) elicit neuroprotective effects, and their repair ability has been investigated in different experimental models. We aimed to investigate the effect of multiple i.p. BM-MSCs injections in the cuprizone model of multiple sclerosis in mice. Methods: Adult male C57BL/6 mice (n = 40) were fed a regular diet or a diet containing cuprizone (0.2% w/w) for 6 six weeks. Bone marrow samples were taken from patients with spinal cord injury...
February 7, 2018: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/29399802/stem-cells-enhance-reperfusion-following-ischemia-validation-using-laser-speckle-imaging-in-predicting-tissue-repair
#5
Ya Hui Tang, R Will Thompson, Cherie-Ann Nathan, Jonathan Steven Alexander, Timothy Lian
OBJECTIVES: The lack of real-time assessment of vascular perfusion changes remains a major weakness in assessing the efficacy of bone marrow stromal cells (BMSC) therapeutic ischemia reperfusion (I/R) injury. This study provides for the first time the real-time in vivo perfusion monitoring in I/R mice with BMSC therapy. STUDY DESIGN: Animal model. METHODS: Surgically created cutaneous flaps perfused by the inferior epigastric vessels were subjected to 3...
February 5, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29395424/rationale-and-design-of-the-clinical-and-histologic-analysis-of-mesenchymal-stromal-cells-in-amputations-champ-trial-investigating-the-therapeutic-mechanism-of-mesenchymal-stromal-cells-in-the-treatment-of-critical-limb-ischemia
#6
S Keisin Wang, Linden A Green, Natalie A Drucker, Raghu L Motaganahalli, Andres Fajardo, Michael P Murphy
OBJECTIVE: Currently, there are no accepted nonsurgical therapies that improve the delivery of blood-derived nutrients to patients with critical limb ischemia. Here, we describe the ongoing phase 1/2 Clinical and Histologic Analysis of Mesenchymal Stromal Cells in AmPutations (CHAMP) trial, which will provide crucial evidence of the safety profile of mesenchymal stromal cells (MSCs) and explore their therapeutic mechanisms in the setting of critical limb ischemia requiring below-knee amputation (BKA)...
January 30, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29388057/utility-of-radionuclide-bone-scintigraphy-in-complex-regional-pain-syndrome
#7
REVIEW
Brandon A Howard, Lance Roy, Alan David Kaye, Srinivas Pyati
PURPOSE OF REVIEW: To describe the current understanding of the role of three-phase bone scintigraphy (TPBS) in the diagnosis and management of complex regional pain syndrome (CRPS), discuss its advantages and limitations, and present three examples of TPBS patterns typically seen in CRPS patients. RECENT FINDINGS: CRPS is a debilitating disorder frequently presenting with pain to ordinarily non-painful stimuli, redness, swelling, following fractures, stroke, myocardial infarction, surgery, or even minor trauma, and its diagnosis, based on clinical criteria and supportive imaging findings, is difficult...
February 1, 2018: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/29380818/renin-cells-in-homeostasis-regeneration-and-immune-defence-mechanisms
#8
REVIEW
R Ariel Gomez, Maria Luisa S Sequeira-Lopez
An accumulating body of evidence suggests that renin-expressing cells have developed throughout evolution as a mechanism to preserve blood pressure and fluid volume homeostasis as well as to counteract a number of homeostatic and immunological threats. In the developing embryo, renin precursor cells emerge in multiple tissues, where they differentiate into a variety of cell types. The function of those precursors and their progeny is beginning to be unravelled. In the developing kidney, renin-expressing cells control the morphogenesis and branching of the renal arterial tree...
January 30, 2018: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/29373945/perfusion-enhances-hypertrophic-chondrocyte-matrix-deposition-but-not-the-bone-formation
#9
Jonathan C Bernhard, Elizabeth Hulphers, Bernhard Rieder, James Crawford Ferguson, Dominik Rünzler, Thomas Nau, Heinz Redl, Gordana Vunjak-Novakovic
Perfusion bioreactors have been an effective tool in bone tissue engineering. Improved nutrient delivery and the application of shear forces have stimulated osteoblast differentiation and matrix production, allowing for generation of large, clinically-sized constructs. Differentiation of hypertrophic chondrocytes has been considered as an alternative strategy for bone tissue engineering. We studied the effects of perfusion on engineered constructs formed from human chondrocytes with respect to hypertrophic differentiation, matrix production, and subsequent bone formation...
January 26, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29363599/human-bone-perivascular-niche-on-a-chip-for-studying-metastatic-colonization
#10
Alessandro Marturano-Kruik, Michele Maria Nava, Keith Yeager, Alan Chramiec, Luke Hao, Samuel Robinson, Edward Guo, Manuela Teresa Raimondi, Gordana Vunjak-Novakovic
Eight out of 10 breast cancer patients die within 5 years after the primary tumor has spread to the bones. Tumor cells disseminated from the breast roam the vasculature, colonizing perivascular niches around blood capillaries. Slow flows support the niche maintenance by driving the oxygen, nutrients, and signaling factors from the blood into the interstitial tissue, while extracellular matrix, endothelial cells, and mesenchymal stem cells regulate metastatic homing. Here, we show the feasibility of developing a perfused bone perivascular niche-on-a-chip to investigate the progression and drug resistance of breast cancer cells colonizing the bone...
January 23, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29361626/-secondary-dementia-due-to-leptomeningeal-metastasis-of-breast-cancer-improved-by-whole-brain-radiation
#11
Mariko Asai, Hiroshi Tanaka, Yasutomo Goto, Tetsuya Yamada, Norihiro Yuasa, Eiji Takeuchi, Hideo Miyake, Hidemasa Nagai, Yuichiro Yoshioka, Masataka Okuno, Natsuko Kawai, Takayuki Minami, Takuya Nagao, Shingo Maeda, Koichi Mouri, Kouji Fukata, Hironori Mizuno, Takuji Iwase, Kanji Miyata
A 62-year-old woman received chemotherapy for breast cancer with bone metastasis and malignant pleural and pericardial effusion. She was examined by imaging for progressive cognitive impairment and headache. Enhanced MRI findings showed multiple solid tumors on brain surface, and brain perfusion scintigraphy showed blood flow decrease in both parietal lobes. She was diagnosed with secondary dementia due to leptomeningeal metastases of breast cancer, and whole brain external irradiation was performed(30 Gy/15 Fr)...
December 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29361586/femoral-bone-perfusion-through-the-nutrient-foramen-during-growth-and-locomotor-development-of-western-grey-kangaroos-macropus-fuliginosus
#12
Qiaohui Hu, Thomas J Nelson, Edward P Snelling, Roger S Seymour
The nutrient artery passes through the nutrient foramen on the shaft of the femur and supplies more than one-half of total blood flow to the bone. Assuming that the size of the nutrient foramen correlates with the size of the nutrient artery, an index of blood flow rate (Qi) can be calculated from nutrient foramen dimensions. Interspecific Qi is proportional to locomotor activity levels in adult mammals, birds and reptiles. However, no studies have yet estimated intraspecific Qi to test for the effects of growth and locomotor development on bone blood flow requirements...
December 21, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29344873/laser-capture-microdissection-and-rna-extraction-from-perfusion-fixed-cartilage-and-bone-tissue-from-mice-implanted-with-human-ipsc-derived-mscs-in-a-calvarial-defect-model
#13
Xiaonan Xin, Xi Jiang, Alexander Lichtler, Mark Kronenberg, David Rowe, Joel S Pachter
Laser-capture microdissection (LCM) coupled to downstream RNA analysis poses unique difficulties for the evaluation of mineralized tissues. A rapid protocol was thus developed to enable sufficient integrity of bone and cartilage tissue for reliable sectioning, while minimizing RNA loss associated with prolonged decalcification and purification steps. Specifically, the protocol involves pump-assisted, cardiac perfusion-fixation with paraformaldehyde, and moderate digestion of LCM-acquired tissue with proteinase K followed by DNase treatment and separation of RNA using magnetic beads...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29333468/extraosseous-accumulation-of-technetium-99m-methyl-diphosphonate-99mtc-mdp-in-a-child-with-all-a-case-report
#14
Farnaz Banezhad, Narjess Ayati, Farrokh Seilanian Toosi, Samine Boloursaz, S Rasoul Zakavi
Extraosseous accumulation of technetium-99m-methyl diphosphonate (99mTc-MDP) on bone scan is not common. This phenomenon is often attributed to abnormality of calcium metabolism and has been reported in a variety of conditions including metabolic diseases and malignancies. A five years old boy is presented here, who was admitted to the pediatric emergency suffering from fatigue, respiratory symptoms, weight loss, intermittent fevers, anorexia, nausea and vomiting, edema of legs and abdominal distension for one month...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29323533/comparison-of-repair-characteristics-of-artificial-dermis-composite-tissue-with-traditional-prefabricated-flap
#15
Yuchong Wang, Mengyan Sun, Haiying Dai, Chuan Lv, Jianguo Xu, Ji Zhu, Ran Tao, Kai Wu, Xinwei Wang, Chunyu Xue
BACKGROUND: We compared the application of artificial dermis composite tissue and the traditional prefabricated flap in a rat model of an exposed bone and tendon injury. METHODS: Sprague Dawley rats were randomly divided into two groups (A and B, n = 40). Group A rats received artificial dermis composite tissue flaps while group B rats received traditional prefabricated flaps. Flap appearance, range of motion, degree of swelling, tissue histology, and imaging were compared between groups at 7, 14, 21, and 28 days...
January 11, 2018: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/29319135/radiosynoviorthesis-of-acromioclavicular-joint-using-169er-citrate-prospective-evaluation-of-efficacy
#16
Marika Vereb, Knut Liepe, Manfred Fischer, Lucia Kaliska, Lucia Noskovicova, Sona Balogova
BACKGROUND: There is a clinical need for therapeutic alternative in patients with persisting painful arthritis of AC-joint and failure of previous treatments. However, no radiopharmaceutical is currently explicitly approved for radiosynoviorthesis of acromioclavicular joint. The aim of our study was to prospectively assess the efficacy and safety of radiosynoviorthesis of acromioclavicular joint using erbium-169 citrate. MATERIAL AND METHODS: Radiosynoviorthesis of acromioclavicular joint was performed in 51 consecutive patients (18 males, 33 females) mean age 64...
January 10, 2018: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/29286362/dissection-and-coronal-slice-preparation-of-developing-mouse-pituitary-gland
#17
Dongmei Cao, Xianhua Ma, Weiping J Zhang, Zhifang Xie
The pituitary gland or hypophysis is an important endocrine organ secreting hormones essential for homeostasis. It consists of two glands with separate embryonic origins and functions - the neurohypophysis and the adenohypophysis. The developing mouse pituitary gland is tiny and delicate with an elongated oval shape. A coronal section is preferred to display both the adenohypophysis and neurohypophysis in a single slice of the mouse pituitary. The goal of this protocol is to achieve proper pituitary coronal sections with well-preserved tissue architectures from developing mice...
November 16, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29278411/perfusion-applied-to-a-3d-model-of-bone-metastasis-results-in-uniformly-dispersed-mechanical-stimuli
#18
Boyuan Liu, Suyue Han, Brandon P Hedrick, Yahya Modarres-Sadeghi, Maureen E Lynch
Breast cancer most frequently metastasizes to the skeleton. Bone metastatic cancer is incurable and induces wide-spread bone osteolysis, resulting in significant patient morbidity and mortality. Mechanical cues in the skeleton are an important microenvironmental parameter that modulate tumor formation, osteolysis, and tumor cell-bone cell signaling, but which mechanical signals are the most beneficial and the corresponding molecular mechanisms are unknown. We focused on interstitial fluid flow based on its well-known role in bone remodeling and in primary breast cancer...
December 26, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29273609/bone-marrow-edema-associated-with-everolimus
#19
Rachel Lebovic McDevitt, Chelsey Quinlan, Katie Hersberger, Vaibhav Sahai
PURPOSE: The case of a patient who experienced bone marrow edema and pain in both feet and a compression fracture of one heel bone after several months of everolimus use is reported. SUMMARY: A 62-year-old woman with a grade 1 metastatic pancreatic neuroendocrine tumor (pNET) developed bilateral lower extremity edema and pain approximately 4 months after initiation of treatment with everolimus, an inhibitor of mammalian (or mechanistic) target of rapamycin (mTOR)...
January 1, 2018: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/29273298/recruitment-and-therapeutic-application-of-macrophages-in-skeletal-muscles-after-hind-limb-ischemia
#20
Pei-Ling Hsieh, Viktoriya Rybalko, Aaron B Baker, Laura J Suggs, Roger P Farrar
OBJECTIVE: Peripheral arterial disease can cause not only ischemia but also skeletal muscle damage. It has been known that macrophages (MPs) play an important role in coordinating muscle repair; however, phenotype transition of monocyte-MP in ischemic muscle has not been well defined. Hence, the purpose of this study was to examine the temporal recruitment of MPs and to explore their therapeutic effect on ischemic muscle regeneration. METHODS: Unilateral femoral artery excision was performed on C57BL/6 mice...
December 19, 2017: Journal of Vascular Surgery
keyword
keyword
64553
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"