Results 51 to 60 of about 3,207,924 (350)

Windswept deformities of the knee are challenging to manage

open access: yesKnee Surgery & Related Research, 2020
Background Little has been published about TKA in windswept deformities of the knees where combined varus and valgus deformities present in the same patient.
Suresh Babu   +2 more
doaj   +1 more source

Knee replacement

open access: yesThe Lancet, 2018
Knee replacement surgery is one of the most commonly done and cost-effective musculoskeletal surgical procedures. The numbers of cases done continue to grow worldwide, with substantial variation in utilisation rates across regions and countries. The main indication for surgery remains painful knee osteoarthritis with reduced function and quality of ...
Price, A   +7 more
openaire   +4 more sources

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

open access: yesFEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang   +2 more
wiley   +1 more source

Evolving dynamic multiple-objective optimization problems with objective replacement [PDF]

open access: yes, 2005
This paper studies the strategies for multi-objective optimization in a dynamic environment. In particular, we focus on problems with objective replacement, where some objectives may be replaced with new objectives during evolution.
Chen, Q, Guan, SU, Mo, W
core  

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

open access: yesFEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp   +5 more
wiley   +1 more source

Performance of thin Vivacit-E hip liners: no relevant wear during ex vivo testing at high acetabular inclination angle

open access: yesActa Orthopaedica, 2022
Background and purpose: There is concern among clinicians regarding the performance of thin, highly cross-linked polyethylene acetabular liners at high inclination angles that cause edge contact and high contact stresses.
Vesa Saikko   +2 more
doaj   +1 more source

Operational asset replacement strategy : a real options approach [PDF]

open access: yes, 2009
This article analyses the problem of replacement by investigating the optimal moment of investment replacement in a given tax environment with a given depreciation policy.
Duque, João, Zambujal, João
core  

Wnt signaling during tooth replacement in zebrafish (Danio rerio) : pitfalls and perspectives [PDF]

open access: yes, 2014
The canonical (13-catenin dependent) Wnt signaling pathway has emerged as a likely candidate for regulating tooth replacement in continuously renewing dentitions.
Elderweirdt, Fien   +2 more
core   +3 more sources

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