The Russian side of the longevity science community, largely associated with the Science for Life Extension Foundation, produces very slick, professional materials on the science of aging and how we might intervene to extend healthy human life. Unfortunately, many of the large posters on the fundamental science are in Russian, and only slowly make their way into English. As they usually appear online as images rather than PDFs, and are generally filled with scientific terminology, they are not particularly amenable to automated translation.
But it is worth keeping an eye out for the ones that do get translated. See, for example, this recent post from Alexey Moskalev, run through the Google Translate service:
To chart some of the biomarkers of aging and age-related pathologies. English had to do double duty and make it easier to find literature supporting the scheme. Thanks to the designer of the Fund "Science for Life Extension" and Olga Martyniuk.
Google Translate won't let you download the image attached to that post directly, unfortunately, so here's a copy for you to admire. Click on it for the full size version:
You might also look at a recent discussion on biomarkers from last month. There are many aspects of our biochemistry that are known to change in characteristic ways with aging, but as of yet very very few than might be used to accurately either measure current age or predict remaining life expectancy. That is a real challenge for groups that want to develop therapies to bring aging under medical control: how does a researcher quickly verify that he has a therapy that works if there is no measurement that can be made to show effectiveness after a couple of months of treatment? The wait and see approach might be borderline acceptable in mice - and even there it takes years and adds huge costs to studies - but it won't work in humans.