Supplementation with CoQ10 lowers age-related (ar) NOX levels in healthy subjects

Effects of a Combination of Water-Soluble CoenzymeQ10 and Collagen on Skin Parameters and Condition:Results of a Randomised, Placebo-Controlled,Double-Blind Study

Skin is a complex and dynamic organ that provides a protective interface between the external environment and the body; changes in skin appearance are often the first visible signs of aging. It is well established that nutrients and other bioactive substances have important roles in the structure and functions of human skin; however, the effects of dietary supplementation of such bioactives are much less investigated. The objective of this randomised, double-blind placebo-controlled study was to investigate the effects of liquid food supplement, characterised by a combination of water-soluble coenzyme Q10 (Q10Vital®) and collagen, on dermal density and other skin parameters in comparison to placebo. The trial was performed on 34 healthy women aged 40–65 that received either the test product (n = 17) or the placebo (n = 17) for twelve weeks. Measurements and assessments of skin parameters were performed at baseline and after 12 weeks of intervention. We observed improved dermis density, reduced periorbital wrinkle area and the total wrinkle score, and improved skin smoothness. On the other hand, changes in skin hydration, dermis thickness, transepidermal water loss (TEWL) and viscoelasticity were not significant.

The effect of dietary intake of coenzyme Q10 on skin parameters and condition: Results of a randomised, placebo-controlled, double-blind study

Coenzyme Q10 (CoQ10) is a natural constituent of foods and is also often used in both functional foods and supplements. In addition, it is a common ingredient of cosmetics where it is believed to reduce the signs of skin ageing. However, the existing data about the effect of dietary intake of CoQ10 on skin parameters and condition are scarce. To gain an insight into this issue, we conducted a double-blind, placebo-controlled experiment with 33 healthy subjects. Our objective was to investigate the effects of 12 weeks of daily supplementation with 50 and 150 mg of CoQ10 on skin parameters and condition. Study was conducted with a water-soluble form of CoQ10 with superior bioavailability (Q10Vital^® ). While the results of some previous in vitro studies showed possible protection in UVB response, we did not observe significant changes in the minimal erythema dose (MED). On the other hand, the intake of CoQ10 limited seasonal deterioration of viscoelasticity and reduced some visible signs of ageing. We determined significantly reduced wrinkles and microrelief lines, and improved skin smoothness. Supplementation with CoQ10 did not significantly affect skin hydration and dermis thickness. © 2016 BioFactors, 43(1):132-140, 2017.

Trans-plasma membrane electron transport in mammals: functional significance in health and disease

Trans-plasma membrane electron transport (t-PMET) has been established since the 1960s, but it has only been subject to more intensive research in the last decade. The discovery and characterization at the molecular level of its novel components has increased our understanding of how t-PMET regulates distinct cellular functions. This review will give an update on t-PMET, with particular emphasis on how its malfunction relates to some diseases, such as cancer, abnormal cell death, cardiovascular diseases, aging, obesity, neurodegenerative diseases, pulmonary fibrosis, asthma, and genetically linked pathologies. Understanding these relationships may provide novel therapeutic approaches for pathologies associated with unbalanced redox state.

arNOX: generator of reactive oxygen species in the skin and sera of aging individuals subject to external modulation

An aging-related cell-surface oxidase (aging-related NADH oxidase, arNOX) generating superoxide and other reactive oxygen species is shed from the cell surface and is found in saliva, urine, perspiration, and interstitial fluids that surround the collagen and elastin matrix underlying dermis. arNOX activity correlates with age and reaches a maximum at about age 65 in males and 55 in females. arNOX activities are highly correlated with values of human skin where a causal relationship is indicated. Ongoing efforts focus on cloning arNOX proteins and development of antiaging formulas based on arNOX inhibition (intervention).