The Other Side of the Coin

Here’s hoping everyone had a wonderful Father’s Day. During our relaxed celebration for Bear, I found myself ruminating about how many times we’ve celebrated this holiday for fathers no longer with us and how many more times  we would be able to celebrate it for the fathers who are. They are aging. Wait a minute, that means their kidneys are aging, too.

Yep, that meant a new blog topic. We already know that kidney function declines with age. According to the National Kidney Foundation at https://www.kidney.org/blog/ask-doctor/what-age-do-kidneys-decline-function, “The general ‘Rule of Thumb’ is that kidney function begins to decline at age 40 and declines at a rate of about 1% per year beyond age forty. Rates may differ in different individuals.” 40?

Well, what is a perfect kidney function score… if such exists? Back  to the NKF, although they call this a ‘normal’ not ‘perfect’ GFR, this time at https://www.kidney.org/atoz/content/gfr:

In adults, the normal GFR number is more than 90. GFR declines with age, even in people without kidney disease.
Average estimated GFR
20–29     116
30–39     107
40–49     99
50–59     93
60–69     85
70+         75

Got it. So even for a normal 70+ person, I have CKD with my 50ish GFR.

It seems I’m getting a bit ahead of myself here. I haven’t defined GFR yet. Let’s take a gander at What Is It and How Did I Get It? Early Stage Chronic Kidney Disease for that definition,

“Glomerular filtration rate [if there is a lower case “e” before the term, it means estimated glomerular filtration rate] which determines both the stage of kidney disease and how well the kidneys are functioning.”

No, that won’t do. I think we need more of an explanation. This is from SlowItDownCKD 2015:

“Glomerular filtration rate (GFR) is a test used to check how well the kidneys are working. Specifically, it estimates how much blood passes through  the glomeruli each minute. Glomeruli are the tiny filters in the kidneys that filter waste from the blood.

Many thanks to MedlinePlus at http://www.nlm.nih.gov/medlineplus/ency/article/007305.htm for the definition.”

Okay, I think that’s clear now. However, that’s not what I wanted to know. This is – if kidney function already declines with age, does having CKD age us more quickly?

Premature aging is a process associated with a progressive accumulation of deleterious changes over time, an impairment of physiologic functions, and an increase in the risk of disease and death. Regardless of genetic background, aging can be accelerated by the lifestyle choices and environmental conditions to which our genes are exposed. Chronic kidney disease is a common condition that promotes cellular senescence and premature aging through toxic alterations in the internal milieu. This occurs through several mechanisms, including DNA and mitochondria damage, increased reactive oxygen species generation, persistent inflammation, stem cell exhaustion, phosphate toxicity, decreased klotho expression, and telomere attrition….”

You can read the entire fascinating (to my way of thinking) American Journal of Kidney Disease article at http://www.natap.org/2013/HIV/PIIS0272638612015922.pdf.

Nature.com at http://www.nature.com/nrneph/journal/v10/n12/full/nrneph.2014.185.html seems to agree that CKD accelerates aging:

“Chronic kidney disease (CKD) shares many phenotypic similarities with other chronic diseases, including heart failure, chronic obstructive pulmonary disease, HIV infection and rheumatoid arthritis. The most apparent similarity is premature ageing, involving accelerated vascular disease and muscle wasting. We propose that in addition to a sedentary lifestyle and psychosocial and socioeconomic determinants, four major disease-induced mechanisms underlie premature ageing in CKD: an increase in allostatic load, activation of the ‘stress resistance response’, activation of age-promoting mechanisms and impairment of anti-ageing pathways. The most effective current interventions to modulate premature ageing—treatment of the underlying disease, optimal nutrition, correction of the internal environment and exercise training—reduce systemic inflammation and oxidative stress and induce muscle anabolism. Deeper mechanistic insight into the phenomena of premature ageing as well as early diagnosis of CKD might improve the application and efficacy of these interventions and provide novel leads to combat muscle wasting and vascular impairment in chronic diseases.”

Remember the friend of my daughter’s who hadn’t seen me in five years who (thought) he whispered to her, “Your mom got so old.” Now I understand why, although I have noticed this myself. I look in the mirror and see the bags under my eyes that are not errant eye liner. I see the lines in my faces, especially around my mouth, that weren’t there just a year ago. I see the stubborn fat around my middle that frustrates me no end. I see that it takes me forever (okay, so I’m being figurative here, folks) to recover from the flu, and I see how easily I become – and stay – tired. The dancer in me screams, “No fair!” The adult patient in me says, “Deal with it,” so I do.

I’ve used quite a bit of advanced terminology today, but haven’t explained a great deal of it in the hopes that when you read these articles their meanings will become clear in context. If they don’t, please leave me a comment and I will explore each one of them in future blogs. Who knows? Maybe I’ll need to devote an entire blog to whichever term it is you’d like to know more about.

Don’t let our premature aging get you down. We can work against it and, hopefully, slow it down just as we do with the progress of the decline in our kidney function.

I have been saving this bit of news for the last item in today’s blog. The world is not going to suffer if it doesn’t know about my photography, my teaching ,writing, or acting careers. But, when it comes to CKD, my writing can add something for those 31 million people who have it…especially the 90% that haven’t been diagnosed yet. What I did was completely change my web site so that it deals only with my Chronic Kidney Disease Awareness Advocacy (It’s all caps because that’s the way I think of it.) under the umbrella of SlowItDownCKD. I have to admit, I was surprised to see how active I’ve been in the last decade. It’s different when you see your work listed all in one place. Take a look at www.gail-raegarwood.com and tell me what you think, would you?

Until next week,

Keep living your life!

 

 

Good Enough 

Yesterday, I carefully applied my eye liner, examined myself in the magnifying mirror, nodded to myself and murmured, “Good enough.” I’ve been saying that an awful lot lately and finally realized – once a valued, constant reader asked about the connection between worsening vision and Chronic Kidney Disease – that it may be due to my CKD.

This, after I’ve spent years attributing “Good enough” to the slowest developing ever case of macular degeneration,  the age related need for reading glasses, and my impatience with makeup. Of course, then I remembered that I couldn’t read a darned thing without the reading glasses and, that without ample light, even they didn’t do the trick.eye liner

Back to the drawing board, ladies and gentlemen. Here’s what DaVita at http://www.davita.com/kidney-disease/overview/symptoms-and-diagnosis/eyes-and-chronic-kidney-disease/e/4732 has to say about CKD and vision.

Diabetes and high blood pressure aren’t only the leading causes of chronic kidney disease (CKD). They’re also the leading causes of eye disease and loss of vision. If your renal disease is a result of either condition your vision may be at risk.

Some of the most common eye problems that occur in CKD patients are retinopathy, cataracts and glaucoma.”

Here are some quickie reminders before we continue. The American Diabetes Association at http://www.diabetes.org/diabetes-basics/  tells us, “Diabetes is a group of diseases characterized by high blood glucose levels that result from defects in the body’s ability to produce and/or use insulin.”

Book CoverI turned to What Is It and How Did I Get It? Early Stage Chronic Kidney for a reminder about high blood pressure: “A possible cause of CKD, 140/90mm Hg is currently considered hypertension, a risk factor for heart disease and stroke, too.”

However, the American Heart Association has changed this a bit as of Dec. 2013. “The American Heart Association maintains its recommendation of initiating treatment — starting with lifestyle changes and then medication if necessary — at 140/90 until age 80, then at 150/90.” Yet, The Journal of the American Medical Association maintains that people over 60 should not be considered hypertensive until they register 150/90.

While that’s not new information to me, I did wonder how hypertension could affect your sight. The American Academy of Ophthalmology at http://www.aao.org/eye-health/ask-eye-md-q/how-does-high-blood-pressure-affect-vision came to the rescue here.

“If the blood pressure is very high it can be called malignant hypertension and cause swelling of the macula and acute loss of vision. Otherwise hypertension can cause progressive constriction of the arterioles in the eye and other findings. Usually high blood pressure alone will not affect vision much, however hypertension is a known risk factor in the onset and/or progression of other eye disease such as glaucomadiabetic retinopathy, and macular degeneration as well as blocked veins and arteries in the retina or nerve of the eye that can severely affect vision.”

My first response to this information was, “What’s an arteriole? A small artery?”  Time to find out. I turned to my old friend MedicineNet at http://www.medicinenet.com/script/main/art.asp?articlekey=2335 for the definition.arteriole in eye

“A small branch of an artery that leads to a capillary. The oxygenated hemoglobin (oxyhemoglobin) makes the blood in arterioles (and arteries) look bright red.”

That makes sense.  Do you remember what glaucoma and/or macular degeneration are?

Back to another trusted source for one of the definitions: The Mayo Clinic at http://www.mayoclinic.org/diseases-conditions/glaucoma/basics/definition/con-20024042.

“Glaucoma is a group of eye conditions that damage the optic nerve, which is vital to good vision. This damage is often caused by an abnormally high pressure in your eye.”

I sort of, maybe, remembered writing about macular generation in The Book of Blogs: Moderate Stage Chronic Kidney Disease, Part 2.Digital Cover Part 2 redone - Copy Sure enough, I found it.

“An eye disease that progressively destroys the macula, the central portion of the retina, impairing central vision. Macular degeneration rarely causes total blindness because only the center of vision is affected.” (according to MedicineNet at http://www.medicinenet.com/script/main/art.asp?articlekey=10027). Oh, MedicineNet again.  That’s a good source for easily understood medical definitions if you’re looking for one.

Let’s say you don’t have diabetes or hypertension.  Does CKD affect your vision then?  Interestingly enough, most sites I pulled up talked more about CKD being caught during an eye exam than CKD causing vision problems… except in diabetic End Stage Renal Disease.  This is when you need to have your eyes carefully checked and often.

PubMed, part of the US National Library of Medicine, National Institutes of Health, at http://www.ncbi.nlm.nih.gov/pubmed/21784818 puts a bit of a different spin on the vision/CKD exploration. “Retinal abnormalities are common in inherited and acquired renal disease.”

journal_logoWow! This is from an older study – 2011 – conducted by the well-respected Clinical Journal of the American Society of Nephrology.  I don’t know if my CKD is inherited or acquired, but it is renal disease and I do have vision problems… and so does my valued, constant reader.

By the way, blurred vision may be an indication that you are suffering from uremia. This reminder brought to you by the Renal Network’s Kidney Patient News at http://www.kidneypatientnews.org/ckd/index.php.

Of course, I can almost hear some of you asking what uremia is.  The Book of Blogs: Moderate Stage Chronic Kidney Disease, Part 1 was DIGITAL_BOOK_THUMBNAILof help here: it’s “the buildup of waste in the blood due to kidney failure.”

I really enjoy learning from the research I do to answer your questions, so thank you for another opportunity to do that. Just keep in mind that I’m not a doctor and you need to ask these questions of your nephrologist who will answer them or refer you to another specialist if need be.

Another birthday approaches – which I consider another opportunity to give you gifts.  Keep your eye on P2P’s Chronic Illness Awareness Buy and Sell’s page on Facebook and SlowItDownCKD on Facebook, Twitter, and Instagram in addition to this blog for Book Give- Away announcements.happy birthday

Last but not least, The  17th Annual Southwest Nephrology Conference and 4th Annual Convention of Cardio Renal Society of America will be held right here in Arizona at the We-Ko-Pa Resort & Conference Center in Scottsdale. The dates are March 11-12. I’ll be attending part of the time. Why not meet me? Register at www.swnc.org or by calling 1 (877) 587-1357.

Until next week,

Keep living your life!