Results 31 to 40 of about 6,589,084 (383)
The growth factor of matter perturbations in an f(R) gravity [PDF]
The growth of matter perturbations in the $f(R)$ model proposed by Starobinsky is studied in this paper. Three different parametric forms of the growth index are considered respectively and constraints on the model are obtained at both the $1\sigma$ and $2\sigma$ confidence levels, by using the current observational data for the growth factor.
arxiv +1 more source
Conditioned medium from activated spleen cells supports the survival of rat retinal cells in vitro
Cytokines are a heterogeneous group of molecules that have been associated with several functions in the nervous system, such as survival and differentiation of neuronal and glial cells.
A. Sholl-Franco, E.G. Araujo
doaj +1 more source
Epidermal growth factor receptor (EGFR) gene alteration and protein overexpression in Malaysian triple-negative breast cancer (TNBC) cohort [PDF]
Background: Epidermal growth factor receptor (EGFR) is a member of the ErbB family of tyrosine kinase receptor proteins that plays important roles in tumour cell survival and proliferation.
Abdul Raub, Sayyidi Hamzi+7 more
core +1 more source
Growth induced instabilities in a circular hyperelastic plate [PDF]
In this work, we have explored growth-induced mechanical instability in an isotropic circular hyperelastic plate. Consistent two-dimensional governing equations for a plate under a general finite strain are derived using a variational approach. The derived plate equations are solved using the compound matrix method for two cases of axisymmetric growth ...
arxiv
Background: The accelerating effect of plasma rich in growth factors (PRGFs) in the healing of extraction sockets has been demonstrated by some studies.
Ahmad Mogharehabed+4 more
doaj +1 more source
Current Biological Strategies to Enhance Surgical Treatment for Rotator Cuff Repair
Rotator cuff tear is one of the most common shoulder problems encountered by orthopedic surgeons. Due to the slow healing process and high retear rate, rotator cuff tear has distressed millions of people all around the world every year, especially for ...
Cheng Zhang+9 more
doaj +1 more source
Articular cartilage is an avascular, non-innervated connective tissue with limited ability to regenerate. Articular degenerative processes arising from trauma, inflammation or due to aging are thus irreversible and may induce the loss of the joint ...
Agata Zykwinska+11 more
doaj +1 more source
Hepatocyte growth factor, a key tumor-promoting factor in the tumor microenvironment [PDF]
The tumor microenvironment plays a key role in tumor development and progression. Stromal cells secrete growth factors, cytokines and extracellular matrix proteins which promote growth, survival and metastatic spread of cancer cells.
Galemmo, Robert+3 more
core +2 more sources
Tissue engineering technologies involving growth factors have produced one of the most advanced generations of diabetic wound healing solutions. Using this approach, a nanocomposite carrier was designed using Poly(d,l-lactide-co-glycolide) (PLGA)/Gelatin
Charu Dwivedi+7 more
doaj +1 more source
Growth factors in idiopathic pulmonary fibrosis: relative roles
Treatment of idiopathic pulmonary fibrosis patients has evolved very slowly; the fundamental approach of corticosteroids alone or in combination with other immunosuppressive agents has had little impact on long-term survival.
Allen Jeremy T, Spiteri Monica A
doaj +1 more source