Results 111 to 120 of about 522,002 (326)

Magnetically Guided Mechanoactive Mineralization Scaffolds for Enhanced Bone Regeneration

Advanced Functional Materials, EarlyView.
A 3D‐printed ‘rebar‐concrete’ inspired scaffold (PGS‐P@MGel) synergizes spontaneous biomineralization with magneto‐mechanical stimulation through PDA@Fe3O4‐embedded hydrogel. This dual biointerface activates Piezo1/β‐catenin/YAP mechanotransduction axis, enhancing BMSCs osteogenesis and angiogenesis simultaneously.
Xuran Guo, Zaijin Tao, Zhenzhen Dai, Yinghua Gao, Chengzhen Chu, Cunyi Fan, Shen Liu, Xin Ma, Fangchun Jin, Zhengwei You, Jia Jiang   +10 more
wiley   +1 more source

Platelet-Rich Plasma-Derived Growth Factor vs Hyaluronic Acid Injection in the Individuals with Knee Osteoarthritis: A One Year Randomized Clinical Trial

Journal of Pain Research, 2020
Seyed Ahmad Raeissadat,1 Azadeh Gharooee Ahangar,2 Seyed Mansoor Rayegani,1 Mohammadreza Minator Sajjadi,3 Adel Ebrahimpour,3 Pegah Yavari1 1Physical Medicine and Rehabilitation Research Center, Clinical Research Development Center of Shahid Modarres ...
Raeissadat SA, Gharooee Ahangar A, Rayegani SM, Minator Sajjadi M, Ebrahimpour A, Yavari P   +5 more
doaj  

Growth index with the cosmological constant [PDF]

Chin. J. Phys, 50, 367 (2012), 2009
We obtain the exact analytic form of the growth index at present epoch ($a=1$) in a flat universe with the cosmological constant ({\it i.e.} the dark energy with its equation of state $\omega_{de} = -1$). For the cosmological constant, we obtain the exact value of the current growth index parameter $\gamma = 0.5547$, which is very close to the well ...
arxiv  

Biomimetic Glycosaminoglycan‐Analog Hydrogel for Improved Embolization of Aneurysms: Environment‐Selective Swelling

Advanced Healthcare Materials, EarlyView.
Biomimetic glycosaminoglycan analog hydrogels exhibit suitable and robust mechanical properties, as well as hemocompatibility and biocompatibility, making them ideal for the embolization of intracranial aneurysms. Notably, the hydrogel's environment‐selective swelling properties enable complete blockage of the aneurysm cavity while preventing ...
Sarit S. Sivan, Iris Bonshtein, Maria Khoury, Yevgeniy Kreinin, Dmitry Korneyev, Tirosh Mekler, Sumaya Kaiyal, Iris Sonia Weitz, Netanel Korin   +8 more
wiley   +1 more source

Calorie Restriction Curbs Proinflammation That Accompanies Arterial Aging, Preserving a Youthful Phenotype

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2018
Background Aging exponentially increases the incidence of morbidity and mortality of quintessential cardiovascular disease mainly due to arterial proinflammatory shifts at the molecular, cellular, and tissue levels within the arterial wall.
Mingyi Wang, Li Zhang, Wanqu Zhu, Jing Zhang, Soo Hyuk Kim, Yushi Wang, Leng Ni, Richard Telljohann, Robert E. Monticone, Kimberly McGraw, Lijuan Liu, Rafael de Cabo, Edward G. Lakatta   +12 more
doaj   +1 more source

Rod‐shaped Polymerized Salicylic Acid Particles Modulate Neutrophil Transendothelial Migration in Acute Inflammation

Advanced Healthcare Materials, EarlyView.
Rod‐shaped particles outperform spherical particles of the same volume in preventing neutrophil infiltration to inflamed areas, both in vitro and in vivo. This therapeutic effectiveness is attributed to better cell targeting and decreased cell motility, resulting from the geometry‐driven phagocytosis and inhibited actin polymerization.
M. Valentina Guevara, Emma R. Brannon, Daniel Kupor, Mariana R.N. Lima, Logan D. Piegols, Michael L. Felder, Kathryn E. Uhrich, Omolola Eniola‐Adefeso   +7 more
wiley   +1 more source

Determination of the Testosterone Effect on the Average Concentration of Basic Fibroblast Growth Factor (bFGF) and Platelet-Drived Growth Factor (PDGF) in Male Wistar Rats

مجله دانشکده پزشکی اصفهان, 2014
Background: Angiogenesis is a determinant factor in the treatment of cardiovascular diseases. The purpose of this study was determining the effect of testosterone on the average concentration of basic fibroblast growth factor (bFGF) and platelet-derived ...
Farid Nasr Esfahani, Shaghayegh Haghjooy Javanmard, Maryam Motamer, Zahrasadat Mortazavi, Saeideh Bahrani   +4 more
doaj  

The Role of Agricultural Sector Productivity in Economic Growth: The Case of Iran's Economic Development Plan [PDF]

Research in Applied Economics (2018), Vol 10, No 1, 2018
This study provides the theoretical framework and empirical model for productivity growth evaluations in agricultural sector as one of the most important sectors in Iran's economic development plan. We use the Solow residual model to measure the productivity growth share in the value-added growth of the agricultural sector.
arxiv  

Short‐Chain Fatty Acids Modulate Anti‐ROR1 CAR T‐Cell Function and Exhaustion in an Intestinal Adenocarcinoma‐on‐Chip Model

Advanced Healthcare Materials, EarlyView.
Short‐chain fatty acids modulate anti‐ROR1 chimeric antigen receptor (CAR) T‐cell function in an intestinal adenocarcinoma‐on‐chip model. Butyrate and propionate reduce cytotoxicity, cytokine release, and infiltration by inducing a regulatory T‐cell phenotype and T‐cell exhaustion via histone deacetylase inhibition.
Valentin D. Wegner, Adrian Feile, Miriam Alb, Michael Hudecek, Philip Hewitt, Alexander S. Mosig   +5 more
wiley   +1 more source

Organoid‐Like Neurovascular Spheroids Promote the Recovery of Hypoxic‐Ischemic Skin Flaps Through the Activation of Autophagy

Advanced Healthcare Materials, EarlyView.
Highly sprouting organoid‐like neurovascular spheroids (NVUs) are developed, featuring cell‐loaded poly‐3‐hydroxybutyrate 4‐hydroxybutyrate(P34HB) porous microsphere cores embedded within Gelatin Methacryloyl. NVUs formed complex vascular plexuses and secreted extracellular matrix in vitro, simulating autologous nerves and blood interaction.
Junjin Jie, Jingyi Ju, Zhenxing Wang, Jun Chen, Lin‐Ping Wu, Jiaming Sun   +5 more
wiley   +1 more source