Healthy Food Pomegranate and Skin Aging

Posted by Chantel Martiromo 

Skin aging is one of most visible ageing process which occurs constantly in our skin organ. According to the Clinical Centre of Nis, certain plant extracts may have the ability to scavenge free radicals, to protect the skin matrix through the inhibition of enzymatic degradation, or to promote collagen synthesis in the skin,  affect skin elasticity and tightness(a). Other suggested that free radicals induced domino effects in production of reactive oxygen species, can react with DNA, proteins, and fatty acids, causing oxidative damage and impairment of antioxidant system, leading  injuries damage regulation pathways of skin,  including wrinkles, roughness, appearance of fine lines, lack of elasticity, and de- or hyperpigmentation marks(b).
The degradation of the epidermal and dermal layers of the extracellular matrix (ECM), the non-cellular component present within all tissues and organs, such as UV Exposure, decline of lysosomal/endosomal cathepsin K, S and V activity(c) as well as environment factors such as irregular dryness, dark/light pigmentation, sallowness, severe atrophy, telangiectases, premalignant lesions, laxity, leathery appearance and deep wrinkling, etc.,  cause modification of the surface of skin and the physical properties of that lead to skin aging. Certain foods have been found to be effective in protect the skin against natural aging, including green tea and garlic.
Pomegranate is a fruit-bearing small tree, genus Punica, belonging to family Lythraceae, native to Iran but has been cultivated in Asian since ancient time.
Pomegranate are among many plants ma be beneficial in protect against human skin aging(21), In the
Study at the Kyung Hee University Global Campus, Punica granatum (pomegranate) extract showed a positive effect in protecting skin against UVB-induced damage in cultured human skin fibroblasts, through increased expression of procollagen type I and decreased expression of MMP-1(22). In an immortal human keratinocyte line (Hala cell line), pomegranate polyphenol extract POMx protected HaCaT cells against UVB-induced oxidative stress and markers of photoaging(23). Ellagic acid, a polyphenol compound presented in berries and pomegranate, prevented collagen destruction and inflammatory responses caused by UV-B, according to the Hallym University(24).
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References
(a) Skin ageing: natural weapons and strategies by Binic I¹, Lazarevic V, Ljubenovic M, Mojsa J, Sokolovic D.(PubMed)
(b) Phytoconstituents as photoprotective novel cosmetic formulations by Saraf S¹, Kaur CD.(PubMed)
(c) Differential expression of cathepsins K, S and V between young and aged Caucasian women skin epidermis by Sage J¹, De Quéral D², Leblanc-Noblesse E², Kurfurst R², Schnebert S², Perrier E², Nizard C², Lalmanach G³, Lecaille F⁴.(PubMed)   
(21) Innovations in natural ingredients and their use in skin care by Fowler JF Jr¹, Woolery-Lloyd H, Waldorf H, Saini R(PubMed)
(22) Extract of Punica granatum inhibits skin photoaging induced by UVB irradiation by Park HM¹, Moon E, Kim AJ, Kim MH, Lee S, Lee JB, Park YK, Jung HS, Kim YB, Kim SY(PubMed)
(23) Inhibition of UVB-mediated oxidative stress and markers of photoaging in immortalized HaCaT keratinocytes by pomegranate polyphenol extract POMx by Zaid MA¹, Afaq F, Syed DN, Dreher M, Mukhtar H.(PubMed)
(24) Dietary compound ellagic acid alleviates skin wrinkle and inflammation induced by UV-B irradiation by Bae JY¹, Choi JS, Kang SW, Lee YJ, Park J, Kang YH(PubMed)