Results 41 to 50 of about 112,948 (243)

Insulin-like growth factor and growth hormone receptor in postpartum lactating beef cows Fator de crescimento semelhante à insulina e receptor do hormônio do crescimento no pós-parto de vacas de corte

open access: yesPesquisa Agropecuária Brasileira, 2010
The objective of this study was to evaluate the plasma concentrations of insulin-like growth factor-I (IGF-I), and the mRNA hepatic expression of IGF-I and of the growth hormone receptors GHR and GHR 1A, in postpartum beef cows.
Augusto Schneider   +6 more
doaj   +1 more source

Bone Healing Around Implants in Normal and Medically Compromised Conditions: Osteoporosis and Diabetes

open access: yesAdvanced Healthcare Materials, EarlyView.
xx xx. ABSTRACT Osseointegration of orthopedic and dental implants is influenced by local and systemic factors, including their physicochemical surface properties and the patient's overall health status. Titanium and its alloys have been a longstanding standard for bone implants due to their innate biocompatibility and mechanical properties.
Dainelys Guadarrama Bello   +2 more
wiley   +1 more source

Aging Impairs IGF-I Receptor Activation and Induces Skeletal Resistance to IGF-I

open access: yesJournal of Bone and Mineral Research, 2007
Abstract IGF-I plays an important anabolic role in stimulating bone formation and maintaining bone mass. We show that the pro-proliferative, anti-apoptotic, and functional responses to IGF-I in bone and BMSCs decrease with aging. These changes are associated with impaired receptor activation and signal transduction through the MAPK and ...
Jay J, Cao   +5 more
openaire   +2 more sources

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum   +5 more
wiley   +1 more source

Aspects of Growth Hormone and Insulin-Like Growth Factor-I Related to Neuroprotection, Regeneration, and Functional Plasticity in the Adult Brain

open access: yesThe Scientific World Journal, 2006
Apart from regulating somatic growth and metabolic processes, accumulating evidence suggests that the growth hormone (GH)/insulin-like growth factor-I (IGF-I) axis is involved in the regulation of brain growth, development, and myelination.
N. David Åberg   +2 more
doaj   +1 more source

Radioimmunoassay for insulin-like growth factor I(IGF-I) using biosynthetic IGF-I.

open access: yesEndocrinologia Japonica, 1986
We produced antiserum to insulin-like growth factor I (IGF-I), and developed a specific and sensitive radioimmunoassay (RIA) for IGF-I using the biosynthetic IGF-I. This antiserum to IGF-I was specific for IGF-I; no cross-reactivities with multiplication stimulating activity, porcine insulin or human growth hormone (hGH) were detected.
M, Miyakawa   +6 more
openaire   +3 more sources

Fabrication, Properties, and Applications of Scaffolds for Bone Tissue Regeneration

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores cutting‐edge biomaterials and fabrication techniques for scaffolds in bone tissue regeneration. It conducts a critical comparison of various strategies, meticulously analyzes the key contradictions in the field, and outlines an integrated development path spanning from biomaterial selection to clinical application, while ...
Shangsi Chen, Min Wang
wiley   +1 more source

Insulin-like Growth Factors Regulate Neuronal Differentiation and Survival

open access: yesNeurobiology of Disease, 1997
Insulin-like growth factor I (IGF-I) and IGF-II are potent trophic factors for motor and sensory neurons and glial cells. The actions of IGF-I and IGF-II are mediated via the IGF-I receptor (IGF-IR).
Eva L. Feldman   +3 more
doaj   +1 more source

Humanin: Functional Interfaces with IGF-I [PDF]

open access: yesGrowth Hormone & IGF Research, 2016
Humanin is the first newly discovered peptide encoded in the mitochondrial genome in over three decades. It is the first member of a novel class of mitochondrial derived peptides. This small, 24 amino acid peptide was initially discovered to have neuroprotective effects and subsequent experiments have shown that it is beneficial in a diverse number of ...
J. Xiao, S.-J. Kim, P. Cohen, K. Yen
openaire   +2 more sources

The Osteoblastic Microenvironment Determines the Fate of Breast Cancer Cells Disseminated in the Bone Marrow

open access: yesAdvanced Science, EarlyView.
This study revealed how the osteoblastic microenvironment determines the fate of cancer cells disseminated in bone, with a focus on whether they colonize, reside in quiescence, or reactivate from dormancy. Targeting integrin signaling may offer promising strategies for preventing quiescent cancer cells reactivation and bone colonization.
Hong‐Li Wang   +7 more
wiley   +1 more source

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