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Current Osteoporosis Reports

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https://www.readbyqxmd.com/read/28432597/t-regulatory-cells-in-bone-remodelling
#1
REVIEW
Aline Bozec, Mario M Zaiss
PURPOSE OF THE REVIEW: In this review, we present the role of regulatory T (Treg) cells in bone remodelling and bone-related disease such as osteoporosis or inflammatory bone loss. We also discuss the cellular and molecular mechanism how Treg cells regulate osteoclastogenesis. RECENT FINDINGS: Treg cells could regulate osteoclastogenesis by secreting TGF-β and IL-10 as well as IL-4 cytokines. Moreover, Treg cells can additionally regulate osteoclast differentiation, in a cell-to-cell contact via the cytotoxic T lymphocyte antigen (CTLA-4)...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28432596/exploiting-the-wnt-signaling-pathway-for-clinical-purposes
#2
REVIEW
Mark L Johnson, Robert R Recker
PURPOSE OF REVIEW: The goal of this paper is to evaluate critically the literature published over the past 3 years regarding the Wnt signaling pathway. The Wnt pathway was found to be involved in bone biology in 2001-2002 with the discovery of a (G171V) mutation in the lipoprotein receptor-related protein 5 (LRP5) that resulted in high bone mass and another mutation that completely inactivated Lrp5 function and resulted in osteoporosis pseudoglioma syndrome (OPPG). The molecular biology has been complex, and very interesting...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28432595/what-animal-models-have-taught-us-about-the-safety-and-efficacy-of-bisphosphonates-in-chronic-kidney-disease
#3
REVIEW
Matthew R Allen, Mohammad W Aref
PURPOSE OF REVIEW: Bisphosphonates (BPs) have long been the gold-standard anti-remodeling treatment for numerous metabolic bone diseases. Since these drugs are excreted unmetabolized through the kidney, they are not recommended for individuals with compromised kidney function due to concerns of kidney and bone toxicity. The goal of this paper is to summarize the preclinical BP work in models of kidney disease with particular focus on the bone, kidney, and vasculature. RECENT FINDINGS: Summative data exists showing positive effects on bone and vascular calcifications with minimal evidence for bone or kidney toxicity in animal models...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28432594/microrna-transfer-between-bone-marrow-adipose-and-multiple-myeloma-cells
#4
REVIEW
Luna Soley, Carolyne Falank, Michaela R Reagan
PURPOSE OF REVIEW: Multiple myeloma remains an incurable disease, largely due to the tumor-supportive role of the bone marrow microenvironment. Bone marrow adipose tissue (BMAT) is one component of the fertile microenvironment which is believed to contribute to myeloma progression and drug resistance, as well as participate in a vicious cycle of osteolysis and tumor growth. RECENT FINDINGS: MicroRNAs (miRNAs) have recently emerged as instrumental regulators of cellular processes that enable the development and dissemination of cancer...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28429254/biomarkers-predicting-bone-turnover-in-the-setting-of-ckd
#5
REVIEW
Pieter Evenepoel, Etienne Cavalier, Patrick C D'Haese
PURPOSE OF THE REVIEW: Impaired bone quality contributes to the increased fracture risk in chronic kidney disease patients. Both low and high turnover bone disease may compromise bone quality. The question arises whether bone biomarkers may be additive or replace bone histormorphometry for diagnosing the extremes of bone turnover. RECENT FINDINGS: Studies exploring the performance of established and emerging bone biomarkers against histomorphometric assessment of bone turnover are limited and overall yield inconclusive results as to their diagnostic utility...
April 20, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28421466/parathyroid-diseases-and-t-cells
#6
REVIEW
M Neale Weitzmann, Roberto Pacifici
PURPOSE OF REVIEW: This review summarizes studies into the permissive role of T cells in the bone catabolic effects of hyperparathyroidism and parathyroid hormone (PTH). RECENT FINDINGS: Work in animals combined with recent translational studies in humans now highlight the potent amplificatory action of T cells on PTH-induced bone resorption. Mechanistic animal studies reveal a complex pathway by which PTH exploits natural self-renewal functions of CD4(+) T cells, to drive TNFα production that promotes formation of IL-17A secreting Th17 T cells...
April 18, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28421465/the-role-of-the-molecular-clock-in-skeletal-muscle-and-what-it-is-teaching-us-about-muscle-bone-crosstalk
#7
REVIEW
Lance A Riley, Karyn A Esser
PURPOSE OF REVIEW: This review summarizes what has been learned about the interaction between skeletal muscle and bone from mouse models in which BMAL1, a core molecular clock protein has been deleted. Additionally, we highlight several genes which change following loss of BMAL1. The protein products from these genes are secreted from muscle and have a known effect on bone homeostasis. RECENT FINDINGS: Circadian rhythms have been implicated in regulating systems homeostasis through a series of transcriptional-translational feedback loops termed the molecular clock...
April 18, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28409412/microcephalic-osteodysplastic-primordial-dwarfism-type-ii-a-clinical-review
#8
REVIEW
Michael B Bober, Andrew P Jackson
PURPOSE OF THE REVIEW: This review will provide an overview of the microcephalic primordial dwarfism (MPD) class of disorders and provide the reader comprehensive clinical review with suggested care guidelines for patients with microcephalic osteodysplastic primordial dwarfism, type II (MOPDII). RECENT FINDINGS: Over the last 15 years, significant strides have been made in the diagnosis, natural history, and management of MOPDII. MOPDII is the most common and well described form of MPD...
April 13, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28303448/parathyroid-hormone-and-parathyroid-hormone-related-protein-analogs-in-osteoporosis-therapy
#9
REVIEW
Benjamin Z Leder
PURPOSE OF REVIEW: The purpose is to review the efficacy and optimal use of parathyroid hormone and parathyroid hormone-related protein analogs in osteoporosis treatment. RECENT FINDINGS: The parathyroid hormone analog teriparatide, a potent stimulator of bone remodeling, increases hip and spine bone mineral density and reduces the risk of vertebral and non-vertebral fractures in postmenopausal osteoporotic women. The parathyroid hormone-related protein analog, abaloparatide, also reduces fracture incidence but has pharmacological effects that differ from teriparatide, particularly in cortical bone...
March 16, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28258372/fracture-burden-what-two-and-a-half-decades-of-dubbo-osteoporosis-epidemiology-study-data-reveal-about-clinical-outcomes-of-osteoporosis
#10
REVIEW
Jacqueline R Center
PURPOSE OF THE REVIEW: This review aims to highlight important clinical findings from the over 25 year-long Dubbo Osteoporosis Epidemiology Study particularly focusing on outcomes post fracture. RECENT FINDINGS: Every low trauma fracture in the elderly is associated with an increased risk of a subsequent fracture, with a higher risk in men than women. All major or proximal fractures and even minor fractures in the very elderly or minor fractures that are then followed by re-fracture are associated with premature mortality, greatest in the first 5 years post fracture...
March 3, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28236036/functional-diversity-of-ciliary-proteins-in-bone-development-and-disease
#11
REVIEW
Masaru Kaku, Yoshihiro Komatsu
PURPOSE OF REVIEW: The primary cilium is a non-motile microtubule-based organelle that senses a diverse range of extracellular signals. While recent studies highlight the importance of ciliary-dependent developmental signals, including Hedgehog, Wnt, and platelet-derived growth factor, it is not well understood whether and how bone morphogenetic protein (BMP) signaling, a key regulator of skeletogenesis, is involved in cilia-related bone developmental aspects and in the etiology of skeletal disorders...
February 24, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28236035/osteoporosis-treat-to-target
#12
REVIEW
E Michael Lewiecki
PURPOSE OF REVIEW: Treat-to-target (goal-directed therapy) has been proposed as a strategy to assist clinicians in selecting the most appropriate initial treatment for osteoporosis and guiding subsequent decisions to continue, change, or stop treatment. This is a review of the current medical evidence regarding treatment targets and potential clinical applications in managing patients with osteoporosis. RECENT FINDINGS: Analyses of randomized placebo-controlled trials of approved agents to treat osteoporosis have generally shown that larger increases in bone mineral density are associated with greater reduction in fracture risk...
February 24, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28224446/current-care-and-investigational-therapies-in-achondroplasia
#13
REVIEW
Sheila Unger, Luisa Bonafé, Elvire Gouze
PURPOSE OF REVIEW: The goal of this review is to evaluate the management options for achondroplasia, the most common non-lethal skeletal dysplasia. This disease is characterized by short stature and a variety of complications, some of which can be quite severe. RECENT FINDINGS: Despite several attempts to standardize care, there is still no widely accepted consensus. This is in part due to absence of concrete data on the incidence of sudden unexplained death in infants with achondroplasia and the best investigation for ascertaining which individuals could benefit from foramen magnum decompression surgery...
February 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28181064/sex-differences-in-skeletal-growth-and-aging
#14
REVIEW
Jeri W Nieves
PURPOSE OF REVIEW: There have been numerous published reports describing skeletal differences between males and females. The goal of this report is to describe recent findings to help elucidate remaining questions. RECENT FINDINGS: It is known that even in youth, there are sex differences in skeletal health. One recent report suggests these differences are evident at 6 years of age. With the availability of newer imaging techniques, specifically HRpQCT and microCT-3D, micro-architectural differences related to sex-differences have been studied...
February 8, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28161871/the-role-of-tgf%C3%AE-in-bone-muscle-crosstalk
#15
REVIEW
Jenna N Regan, Trupti Trivedi, Theresa A Guise, David L Waning
PURPOSE OF REVIEW: The role of bone-derived factors in regulation of skeletal muscle function is an important emerging aspect of research into bone-muscle crosstalk. Implications for this area of research are far reaching and include understanding skeletal muscle weakness in cancer, osteoporosis, cachexia, rare diseases of bone, and aging. RECENT FINDINGS: Recent research shows that bone-derived factors can lead to changes in the skeletal muscle. These changes can either be anabolic or catabolic, and we focus this review on the role of TGFβ in driving oxidative stress and skeletal muscle weakness in the setting of osteolytic cancer in the bone...
February 4, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28124261/genetic-disorders-of-dental-development-tales-from-the-bony-crypt
#16
REVIEW
Sylvia A Frazier-Bowers, Siddharth R Vora
PURPOSE OF REVIEW: The ebb and flow of genetic influence relative to the understanding of craniofacial and dental disorders has evolved into a tacit acceptance of the current genetic paradigm. This review explores the science behind craniofacial and dental disorders through the lens of recent past and current findings and using tooth agenesis as a model of advances in craniofacial genetics. RECENT FINDINGS: Contemporary studies of craniofacial biology takes advantage of the technological resources stemming from the genomic and post-genomic eras...
January 26, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28185216/clinical-evaluation-of-bone-strength-and-fracture-risk
#17
REVIEW
Chantal M J de Bakker, Wei-Ju Tseng, Yihan Li, Hongbo Zhao, X Sherry Liu
PURPOSE OF REVIEW: This paper seeks to evaluate and compare recent advances in the clinical assessment of the changes in bone mechanical properties that take place as a result of osteoporosis and other metabolic bone diseases and their treatments. RECENT FINDINGS: In addition to the standard of DXA-based areal bone mineral density (aBMD), a variety of methods, including imaging-based structural measurements, finite element analysis (FEA)-based techniques, and alternate methods including ultrasound, bone biopsy, reference point indentation, and statistical shape and density modeling, have been developed which allow for reliable prediction of bone strength and fracture risk...
February 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28181063/connexin43-and-the-intercellular-signaling-network-regulating-skeletal-remodeling
#18
REVIEW
Megan C Moorer, Joseph P Stains
PURPOSE OF THE REVIEW: This review highlights recent developments into how intercellular communication through connexin43 facilitates bone modeling and remodeling. RECENT FINDINGS: Connexin43 is required for both skeletal development and maintenance, particularly in cortical bone, where it carries out multiple functions, including preventing osteoclastogenesis, restraining osteoprogenitor proliferation, promoting osteoblast differentiation, coordinating organized collagen matrix deposition, and maintaining osteocyte survival...
February 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28133707/physical-activity-for-strengthening-fracture-prone-regions-of-the-proximal-femur
#19
REVIEW
Robyn K Fuchs, Mariana E Kersh, Julio Carballido-Gamio, William R Thompson, Joyce H Keyak, Stuart J Warden
PURPOSE OF REVIEW: Physical activity improves proximal femoral bone health; however, it remains unclear whether changes translate into a reduction in fracture risk. To enhance any fracture-protective effects of physical activity, fracture prone regions within the proximal femur need to be targeted. RECENT FINDINGS: The proximal femur is designed to withstand forces in the weight-bearing direction, but less so forces associated with falls in a sideways direction...
February 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28110469/is-diabetic-skeletal-fragility-associated-with-microvascular-complications-in-bone
#20
REVIEW
Roberto Jose Fajardo
PURPOSE OF REVIEW: The objective of this literature review is to determine whether there are indications that microvascular complications occur in diabetic bone. Evidence definitively linking diabetic skeletal fragility with microvascular complications in bone remains elusive. RECENT FINDINGS: Circumstantial evidence, some recent and some lost to time, suggests that atherosclerotic vascular diseases such as peripheral arterial disease cause poor blood perfusion of bone and subsequent hypoxia and contribute to low bone density and high cortical porosity, patterns similar to some recently observed in diabetic subjects...
January 21, 2017: Current Osteoporosis Reports
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