Abstract:
:Photoaging is the superposition of photodamage (ultraviolet [UV] radiation-induced) on the aging process. It is a major damaging consequence of free radical action. Curcumin (diferuloylmethane) is a phytochemical with diverse antioxidant and antiinflammatory properties. However, it shows a poor topical bioavailability. Therefore, we encapsulated curcumin in elastic vesicles (EVs) and investigated different doses (1, 3, 5 and 10 micromol) for its in vivo antiaging activity in mice. VICCO turmeric served as the marketed control, and free curcumin dispersed in an ointment base was another control. The dorsal depilated skin surface was exposed to the whole UV range for 5 sec, five times a week for 6 weeks. Each exposure was followed by treatment with encapsulated curcumin (at different doses), free curcumin ointment, and VICCO turmeric. The effectiveness was established in terms of macroscopic and histopathological evaluation of skin, pinch test, and redox homeostasis of skin homogenates. Skin evaluation demonstrated that 5- and 10-micromol doses of curcumin EVs and the marketed formulation were effective in preventing the formation of lesions and other changes. The pinch test showed that the reduction in recovery time with the 10-micromol dose of curcumin EVs was highly significant (p < 0.05). Histopathological studies further confirmed the protective role of curcumin EVs. The normal redox balance was restored with a 10-micromol dose, whereas a 5-micromol dose and the marketed formulation showed significant and equivalent activity. The free curcumin ointment group showed no improvement in redox levels. This study provides the first preclinical evidence for the use of topically delivered curcumin to attenuate photoaging.
journal_name
Rejuvenation Resjournal_title
Rejuvenation researchauthors
Agrawal R,Kaur IPdoi
10.1089/rej.2009.0906subject
Has Abstractpub_date
2010-08-01 00:00:00pages
397-410issue
4eissn
1549-1684issn
1557-8577journal_volume
13pub_type
杂志文章abstract::Previously, other groups and our team consistently have demonstrated that the possible origination of liver cancer stem cells (LCSCs) is the malignant transformation from liver normal stem cells (LNSCs). However, this complex and multi-step process is far from clear due to the accumulation of various gene dysregulatio...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2014.1642
更新日期:2015-08-01 00:00:00
abstract::Healthspan science aims to add healthy, functional years to human life. Many different methods of improving healthspan have been investigated, chiefly focusing on just one aspect of an organism's health such as survival. Studies in Drosophila melanogaster have demonstrated that a reversal to a long-abandoned ancestral...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2020.2361
更新日期:2020-10-20 00:00:00
abstract::We have reported the isolation of a unique subpopulation of human stromal cells from bone marrow termed marrow-isolated adult multilineage inducible (MIAMI) cells. The expression of embryonic stem cell markers SSEA-4, Oct-4, Rex-1, and telomerase reverse transcriptase indicates the developmentally immature status of t...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2006.9.10
更新日期:2006-04-01 00:00:00
abstract::Human growth hormone-2 (GH-2) is a 191-amino-acid protein also known as human placental hormone. During pregnancy, continuous secretion of GH-2 appears to have important implications for physiological adjustment to gestation, especially in controlling levels of maternal insulin-like growth factor 1. To compare the phy...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2014.1594
更新日期:2015-02-01 00:00:00
abstract::We examined the impact of strong co-presence and function of glutathione peroxidase-1 (GPX-1) and glial cell line-derived neurotrophic factor (GDNF) on protecting the rat dopaminergic pheochromocytoma cell line PC12 against 6-hydroxydopamine (6-OHDA) and hydrogen peroxide (H₂O₂) toxicities. Primarily, GPX-1 over-expre...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2012.1390
更新日期:2013-06-01 00:00:00
abstract::Spatial memory and cognition decline during aging. Montelukast, an FDA approved drug for the treatment of asthma, can restore spatial memory in old rats to levels similar to those of young animals. Treatment improves three hallmarks of aging in the brain: reducing microglial-mediated neuroinflammation, blood-brain bar...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2016.1903
更新日期:2016-12-01 00:00:00
abstract::Advanced glycation end products are the results of a series of chemical reactions collectively known as the Maillard reaction, or nonenzymatic glycation, and sometimes cross-link proteins, thereby impairing their normal function. Glucosepane is the most abundant protein cross-link found in vivo so far and mainly has b...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2009.0846
更新日期:2009-04-01 00:00:00
abstract::Let us define human aging as the random accumulation of damage in the human organism's cells, tissues, or whole organism during life that increases the probability of death. This definition opens ways to postpone aging via risk factors to health. Studies show that changes in aging have postponed aging 0.15-0.20 years ...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2008.0675
更新日期:2008-04-01 00:00:00
abstract::A family of constitutive cell surface ECTO-NOX proteins capable of oxidizing reduced quinones, initially described as NADH oxidases, has offered an opportunity to formulate, for the first time, a complete electron transport chain from the cytosol to oxygen at the cell surface with the ECTO-NOX proteins acting as the t...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2006.9.231
更新日期:2006-07-01 00:00:00
abstract::It is known that dietary restriction (DR) increases maximum longevity in rodents, but the mechanisms involved remain unknown. Among the possible mechanisms, several lines of evidence support the idea that decreases in mitochondrial oxidative stress and in insulin signaling are involved but it is not known if they are ...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2008.0704
更新日期:2008-06-01 00:00:00
abstract::The progeroid Werner's syndrome (WS) represents the best current model of human aging. It is caused by loss of the WRN helicase/exonuclease, resulting in high levels of replication fork stalling and genomic instability. Current models suggest that characteristic WS phenotypes of poor S phase progression, low prolifera...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2006.0503
更新日期:2007-03-01 00:00:00
abstract::No study has yet determined the anti-wrinkle efficacy of green tea plus lotus in Asian subjects using skin image analysis technique. In this study, the efficacy of two cosmetic active formulations intended for the treatment of facial wrinkles (green tea and lotus extract) has been evaluated in healthy subjects using a...
journal_title:Rejuvenation research
pub_type: 临床试验,杂志文章
doi:10.1089/rej.2012.1380
更新日期:2013-04-01 00:00:00
abstract::We developed a new model for initiating, coordinating, funding, and managing biomedical research projects. The concept involves engaging the patients with chronic conditions with no known cures into goal-oriented research activities. In this model, the patient seeks the help of a research organization to bring togethe...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2013.1471
更新日期:2013-10-01 00:00:00
abstract::Older patients often suffer from multiple co-morbid conditions. Few co-morbidity indices are valid and reliable in elderly patients and comparison between them is rare. Our objective was to compare the performance, relevance, and abilities of six widely used and validated co-morbidity indices--the Charlson Cumulative ...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2010.1037
更新日期:2010-12-01 00:00:00
abstract:OBJECTIVE:This study examined the impact of estrogen replacement therapy with spirometry on pulmonary function in surgically castrated (salpingo-oophorectomy) postmenopausal women with genital prolapse. METHODS:The study included 60 postmenopausal women with pelvic organ prolapse. The study received institutional Ethi...
journal_title:Rejuvenation research
pub_type: 杂志文章,随机对照试验
doi:10.1089/rej.2012.1337
更新日期:2012-12-01 00:00:00
abstract::Can memory be retained after cryopreservation? Our research has attempted to answer this long-standing question by using the nematode worm Caenorhabditis elegans, a well-known model organism for biological research that has generated revolutionary findings but has not been tested for memory retention after cryopreserv...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2014.1636
更新日期:2015-10-01 00:00:00
abstract::Inflammation is a key component of immune system. It is involved in both defense and pathophysiological events maintaining the dynamic homeostasis of host organism. Its function is controlled by innate immunity genes. Both their polymorphisms and environmental conditions give rise to different phenotypes in human popu...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2008.0666
更新日期:2008-04-01 00:00:00
abstract::The emergence of immune disorders in aging is explained by many factors, including thymus dysfunction, decrease in the proportion and function of naïve T cells, and so forth. There are several approaches to preventing these changes, such as thymus rejuvenation, stem cells recovery, modulation of hormone production, an...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2012.1331
更新日期:2012-04-01 00:00:00
abstract::Pursuance of longevity is not only combating decrepitude but it is also extending the health span; otherwise longevity would result in a universal medical and social burden. As revealed by the literature, the attainment of a healthy life could be impacted by the social milieu. An inquiry of this kind could hardly be s...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2010.1071
更新日期:2011-02-01 00:00:00
abstract::In otherwise healthy adults, moderate aerobic exercise extends life span and likely health span by 2-6 years. Exercise improves blood sugar regulation, and resistance exercise increases or maintains muscle mass and is associated with improved cognitive function. On the other hand, evidence for anti-oxidant supplements...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2013.1484
更新日期:2013-10-01 00:00:00
abstract::d-galactose (d-gal) is widely used to induce aging. However, it is still unclear whether long-term injection of d-gal affects the gastrointestinal functions of aging rats, and how. In this study, we investigated the effects of d-gal on the gastrointestinal functions of aging rats, especially from the perspective of fe...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2020.2352
更新日期:2020-09-29 00:00:00
abstract::The vicious cycle theory postulates that typical mitochondrial DNA (mtDNA) mutations cause their host mitochondria to generate more superoxide and other reactive oxygen species (ROS) than do normal mitochondria, thereby promoting the occurrence of additional mtDNA mutations at an ever-accelerating rate. However, nearl...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2005.8.13
更新日期:2005-04-01 00:00:00
abstract::The human mitochondrion contains a small circular genome that codes for 13 proteins, 22 tRNAs, and 2 rRNAs. The proteins are all inner membrane bound components of complexes involved in the electron transport system and ATP formation. Mutations to any of the 13 proteins affect cellular behavior because energy producti...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2006.9.182
更新日期:2006-07-01 00:00:00
abstract::This study was designed to elucidate the molecular mechanism underlying lysophosphatidic acid (LPA) and adenylyl cyclase inhibitor SQ22536 (ACI)-induced senescent human diploid fibroblast (HDF) proliferation. Because adenosine monophosphate (AMP)-activated protein kinase (AMPK) is known to inhibit cell proliferation, ...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2008.0709
更新日期:2008-08-01 00:00:00
abstract::Alzheimer's disease (AD) is a common form of dementia and amyloid-β peptide (Aβ) aggregation is considered to be one of its main causes. Paeoniflorin has been previously shown to attenuate cognitive damage inflicted by exogenous Aβ protein. Using transgenic Caenorhabditis elegans models expressing human Aβ1-42, we dem...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2017.1966
更新日期:2018-08-01 00:00:00
abstract::Interruption of insulin-like growth factor I (IGF-1) signaling has been demonstrated to prolong life span although the underlying mechanism has not been elucidated. The aim of this study was to examine the influence of severe IGF-1 deficiency on survival rate, cardiomyocyte viability, contractile function, and intrace...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2007.0552
更新日期:2007-12-01 00:00:00
abstract::It is known that weakness in the lower limbs is associated with recurrent falls in old people. Among the tests routinely used to assess lower extremity strength, the Short Physical Performance Battery (SPPB) is one of those used most often, but its relationship with recurrent falls is poorly investigated. We aimed to ...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2013.1491
更新日期:2014-06-01 00:00:00
abstract::This review discusses the role of estrogens as pro- or antiinflammatory players in immune-inflammatory responses. In particular, their role in Alzheimer's disease (AD), an example of immune-inflammatory disease, is discussed briefly. AD is a progressive neurodegenerative disease, which in Western societies accounts fo...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2009.0942
更新日期:2010-04-01 00:00:00
abstract::We tried to establish an age-predictive equation from kinematic and kinetic parameters during walking using the 2007 Okada database of Japanese elderly. Some predictive equations were established for each gender (109 males and 139 females)--once for all variables, second for the stepwise variable selection method. The...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2009.0921
更新日期:2010-04-01 00:00:00
abstract::Osteoarthritis is the most common disabling condition of humans in the western world. It has been known for a very long time that aging is the most prominent risk factor for the initiation and progression of the disease, but the explanations for this phenomenon have changed over time. The most longstanding theory is t...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/1549168041552964
更新日期:2004-07-01 00:00:00