Masters of longevity: lessons from long-lived bivalves--a mini-review.
نویسندگان
چکیده
The individual ages of bivalve molluscs can be inferred from the age rings laid down every year in the shell, especially in species inhabiting areas with seasonal variability in environmental factors such as food supply and temperature. Animals obtained from different environmental settings can therefore be used to investigate how specific environmental factors shape the process of ageing in this animal class. Some bivalves have extraordinary long life spans. Species like the ocean quahog Arctica islandica and the freshwater pearl mussel Margaritifera margaritifera live for over hundreds of years. Few studies so far have attempted to study the process of ageing, either specifically in long-lived bivalves or generally in very long-lived species. This review summarizes the current knowledge of cellular ageing in bivalves with a focus on the antioxidant system, as well as tissue repair and metabolic capacities of extremely long-lived species. We discuss the applicability of these animals as models for different ageing theories. We recommend a focus of future research on the molecular mechanisms potentially involved in supporting longevity in these species, including evolutionary old cellular mechanisms such as autophagy and apoptosis, as well as diverse cellular repair pathways.
منابع مشابه
Lived experiences of military nurses from war- a mini-review
Background and Aim: Military nurses have acquired valuable experiences from caring for patients in war zones. Analysis of these experiences can create valuable knowledge for health care providers. The purpose of this study is to explore and analyze the lived experiences of military nurses from the war extracted from published papers. Methods: In this mini-review, an extensive search was conduct...
متن کاملAn HIV-1 Mini Vaccine Induced Long-lived Cellular and Humoral Immune Responses
Memory formation is the most important aspect of a vaccine which can guarantee long-lasting immunity and protection. The main aim of the present study was to evaluate the memory immune responses after immunization with a mini vaccine. Mice were immunized with human immunodeficiency virus-1 P24-Nef fusion peptide and then cellular and humoral immune responses were evaluated. In order to determin...
متن کاملResistance to genotoxic stresses in Arctica islandica, the longest living noncolonial animal: is extreme longevity associated with a multistress resistance phenotype?
Bivalve molluscs are newly discovered models of successful aging. Here, we test the hypothesis that extremely long-lived bivalves are not uniquely resistant to oxidative stressors (eg, tert-butyl hydroperoxide, as demonstrated in previous studies) but exhibit a multistress resistance phenotype. We contrasted resistance (in terms of organismal mortality) to genotoxic stresses (including topoisom...
متن کاملWound healing and longevity: Lessons from long-lived αMUPA mice
Does the longevity phenotype offer an advantage in wound healing (WH)? In an attempt to answer this question, we explored skin wound healing in the long-lived transgenic αMUPA mice, a unique model of genetically extended life span. These mice spontaneously eat less, preserve their body mass, are more resistant to spontaneous and induced tumorigenesis and live longer, thus greatly mimicking the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Gerontology
دوره 56 1 شماره
صفحات -
تاریخ انتشار 2010