Results 11 to 20 of about 12,816 (241)
Chloroplast PSII photochemical efficiency is upregulated more rapidly than CO2 assimilation during photosynthesis induction, suggesting the existence of other electron sinks than that of CO2 assimilation.
D.D. CHENG, L.T. ZHANG
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Photosystems under high light stress: throwing light on mechanism and adaptation
High light stress decreases the photosynthetic rate in plants due to photooxidative damage to photosynthetic apparatus, photoinhibition of PSII, and/or damage to PSI.
N. SHARMA +7 more
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Introduction: Albinism is a genetic disorder of pigmentation with variable phenotypic presentations. Albinism occurs all over the world, with highest prevalence in sub-Saharan Africa.
Olusola O Ayanlowo +5 more
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Generally, excessive excitation absorbed by the pigments is considered the cause of PSII photodamage. Previous studies of action spectra of PSII photodamage concluded that shorter wavelengths induce more damage, supporting the hypothesis of the existence
I. IERMAK, M. SZABÓ, A. ZAVAFER
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Background: Hydrogen sulfide (H2S) is a small reducing gas molecule with various biological functions such as anti-oxidative, anti-apoptotic and anti-inflammatory activities.
Sen Zhu +6 more
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The retina represents a paradox, in that, while light and oxygen are essential for vision, these conditions also favour the formation of reactive oxygen species leading to photochemical damage to the retina. Such light damage seems to be multi-factorial and is dependent on the photoreactivity of a variety of chromophores (e.g., vitamin A metabolites ...
Boulton, Mike +2 more
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IntroductionLaser-induced photodamage is a robust method for investigating retinal pathologies in small animals. However, aiming of the photocoagulation laser is often limited by manual alignment and lacks real-time feedback on lesion location and ...
Jose J. Rico-Jimenez +12 more
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Interventions for photodamaged skin [PDF]
Photodamage describes skin changes such as fine and coarse wrinkles, roughness, freckles and pigmentation changes that occur as a result of prolonged exposure to the sun. Many treatments are available to reverse the damage, but it is unclear which work and at what cost in terms of unwanted side effects.To assess the effects of topically applied ...
Samuel, Miny +3 more
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Intrinsic indicator of photodamage during label-free multiphoton microscopy of cells and tissues.
Multiphoton imaging has evolved as an indispensable tool in cell biology and holds prospects for clinical applications. When addressing endogenous signals such as coherent anti-Stokes Raman scattering (CARS) or second harmonic generation, it requires ...
Roberta Galli +7 more
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Actinic keratosis in vitiligo after oral PUVAsol therapy with review
Vitiligo is an acquired disorder characterised by depigmentation. The etiopathogenesis is still unclear and many theories have been proposed for the same.
Saumya Sankhwar, Sunil K Gupta
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