Results 61 to 70 of about 20,163 (204)

Osteoprotegerin ligand and osteoprotegerin: novel implications for osteoclast biology and bone metabolism [PDF]

open access: yesEuropean Journal of Endocrinology, 1999
The integrity of the skeleton depends upon bone remodeling, the permanent and controlled resorption of bone by osteoclasts (OC) and its subsequent replacement by bone-forming osteoblasts. An imbalance between bone resorption and bone formation results in osteoporosis (if bone resorption exceeds bone formation) or osteopetrosis (if bone formation ...
openaire   +2 more sources

Estradiol replacement attenuates alendronate‐associated adverse effects on alveolar bone repair in ovariectomized rats

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Sodium alendronate (ALN) is widely used to treat postmenopausal osteoporosis, but both estrogen deficiency and antiresorptive therapy may impair alveolar bone repair after tooth extraction. A clinically relevant but insufficiently explored scenario involves estrogen‐deficient individuals receiving hormone replacement therapy (HRT ...
Pedro H. C. Isaias   +9 more
wiley   +1 more source

Musculoskeletal Outcomes of Glucagon‐Like Peptide‐1 Receptor Agonists Versus Other Antiobesity Agents in Nondiabetic Adults

open access: yesObesity, EarlyView.
ABSTRACT Objective This study aimed to evaluate the association of glucagon‐like peptide‐1 receptor agonists (GLP‐1 RAs) with risks of osteoporosis, major osteoporotic fractures, and degenerative musculoskeletal disorders in nondiabetic adults with obesity compared with other obesity medications.
Jie‐Syuan Wu   +5 more
wiley   +1 more source

Incorporation of Bone Morphogenetic Protein-2 and Osteoprotegerin in 3D-Printed Ti6Al4V Scaffolds Enhances Osseointegration Under Osteoporotic Conditions

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Osteoporosis is an age-related metabolic disease that results in limited bone regeneration capacity and excessive osteoclast activity. After arthroplasty in patients with osteoporosis, poor interface osseointegration resulting from insufficient bone ...
Xianggang Wang   +21 more
doaj   +1 more source

Effect of osteoprotegerin and osteoprotegerin ligand on osteoclast formation by arthroplasty membrane derived macrophages [PDF]

open access: yesAnnals of the Rheumatic Diseases, 2000
Osteoprotegerin ligand (OPGL) is a newly discovered molecule, which is expressed by osteoblasts/bone stromal cells. This ligand and M-CSF are now known to be essential for osteoclast differentiation from marrow and circulating precursors. This study examined whether OPGL and its soluble receptor osteoprotegerin (OPG), influenced osteoclast formation ...
Itonaga, I   +3 more
openaire   +2 more sources

Disrupted joint clock is associated with rhythmic expression of bone destruction factors in collagen‐induced arthritis

open access: yesRheumatology &Autoimmunity, EarlyView.
Schematic Summary of Circadian Dysregulation in Arthritic Joints. This graphical abstract illustrates the key circadian disruptions observed in the collagen‑induced arthritis (CIA) model. The diagram depicts three main findings: (1) Nocturnal elevations in pro‑inflammatory cytokines (TNF‑α, IL‑6, IL‑17, IL‑1β, MIF) and bone‑destructive factors (DKK‑1 ...
Xiaogang Zhang   +7 more
wiley   +1 more source

Staging concept for aging management: Definition, mechanism, and coping strategies

open access: yesVIEW, EarlyView.
We divided the overall aging stage into “pre‐aging”, “aging compensation”, and “aging disability”. For each stage, we delineate the clinical presentations, biological phenomena, theoretical underpinnings, and key management priorities. Abstract Aging, as a gradual and largely irreversible biological process, characterized by declining organismal ...
Zhonghan Wang   +6 more
wiley   +1 more source

Effects of Common Food Additives Kappa‐, Iota‐ and Lambda‐Carrageenans on Intestinal Epithelial Cell Activation and Barrier Disruption

open access: yesClinical &Experimental Allergy, EarlyView.
Carrageenans, widely used food additives, disrupted intestinal epithelial integrity in a gut‐on‐a‐chip model. All types (κ‐, ɩ‐, λ‐) induced cytotoxicity, inflammation and tight junction (TJ) disruption, triggering TNF‐mediated immune responses. λ‐Carrageenan had the most severe effects, supporting the Epithelial Barrier Theory linking food additives ...
Na Sun   +13 more
wiley   +1 more source

Osteoporosis and polymorphisms of osteoprotegerin gene in postmenopausal women – a pilot study

open access: yesRheumatology, 2016
Objectives: Osteoprotegerin (OPG) has an important role in bone remodeling, and it has been proposed that the OPG gene might be a candidate gene for osteoporosis predisposition.
Selma Cvijetic   +5 more
doaj   +1 more source

Alterations of bone proteins in medication‐related osteonecrosis of the jaw

open access: yesEuropean Journal of Oral Sciences, Volume 133, Issue 2, April 2025.
Abstract Changes in the protein expression pattern of osteoblastic lineage cells from the alveolar bone (OLAB) during medication‐related osteonecrosis of the jaw (MRONJ) have rarely been investigated. This lack of information is partly because of the limited availability of healthy samples and the lack of human alveolar bone cell lines for research ...
Andrea Schubert   +6 more
wiley   +1 more source

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