It’s Not Your Hands and Feet; It’s Your Brain.

Here I sit feeling so incredibly pleased that I don’t have pancreatic cancer anymore. Yet, at the same time, I’m so very displeased with the neuropathy that has me using a cane and causing my fingers to hit between the keys on the keyboard instead of on them. I’ve already mentioned in a previous blog that this is a brain connection problem. Today, I’d like to explore that more.

Let’s start with something simple before we wade into what I suspect is going to be complex. Lexico’s English Dictionary at https://www.lexico.com/en/definition/neuropathy tells us neuropathy is,

“Disease or dysfunction of one or more peripheral nerves, typically causing numbness or weakness.”

I get the numbness or weakness, but what are peripheral nerves? I went to WebMD at https://www.webmd.com/brain/understanding-peripheral-neuropathy-basics#1 for help.

“The name of the condition tells you a bit about what it is:

Peripheral: Beyond (in this case, beyond the brain and the spinal cord.)
Neuro-: Related to the nerves
-pathy: Disease

Peripheral neuropathy refers to the conditions that result when nerves that carry messages to and from the brain and spinal cord from and to the rest of the body are damaged or diseased.

The peripheral nerves make up an intricate network that connects the brain and spinal cord to the muscles, skin, and internal organs. Peripheral nerves come out of the spinal cord and are arranged along lines in the body called dermatomes. Typically, damage to a nerve will affect one or more dermatomes, which can be tracked to specific areas of the body. Damage to these nerves interrupts communication between the brain and other parts of the body and can impair muscle movement, prevent normal sensation in the arms and legs, and cause pain.”

Let’s see if we can find out what these nerves are. The Cleveland Clinic at https://my.clevelandclinic.org/health/diseases/14737-neuropathy has an easily understood answer for us,

“The peripheral nervous system is made up of three types of nerves, each with an important role in keeping your body healthy and functioning properly.

  • Sensory nerves carry messages from your five senses (sight, hearing, smell, taste, touch) through your spinal cord to your brain. For example, a sensory nerve would communicate to your brain information about objects you hold in your hand, like pain, temperature, and texture.
  • Motor nerves travel in the opposite direction of sensory nerves. They carry messages from your brain to your muscles. They tell your muscles how and when to contract to produce movement. For example, to move your hand away from something hot.
  • Autonomic nerves are responsible for body functions that occur outside of your direct control, such as breathing, digestion, heart rate, blood pressure, sweating, bladder control and sexual arousal. The autonomic nerves are constantly monitoring and responding to external stresses and bodily needs. For instance, when you exercise, your body temperatures increases. The autonomic nervous system triggers sweating to prevent your body’s temperature from rising too high.

The type of symptoms you feel depend on the type of nerve that is damaged.”

Now the biggie: What causes neuropathy? MedicineNet at https://www.medicinenet.com/peripheral_neuropathy/article.htm was right there with an answer.

  1. Diabetes mellitus
  2. Shingles (post herpetic neuralgia)
  3. Vitamin deficiency, particularly B12 and folate
  4. Alcohol
  5. Autoimmune diseases, including lupusrheumatoid arthritis or Guillain-Barre syndrome
  6. AIDS, whether from the disease or its treatment, syphilis, and kidney failure
  7. Inherited disorders, such as amyloid polyneuropathy or Charcot-Marie-Tooth disease
  8. Exposure to toxins, such as heavy metals, gold compounds, lead, arsenic, mercury, and organophosphate pesticides
  9. Cancer therapy drugs such as vincristine (Oncovin and Vincasar) and other medications, such as antibiotics including metronidazole (Flagyl) and isoniazid
  10. Rarely, diseases such as neurofibromatosis can lead to peripheral neuropathy. Other rare congenital neuropathies include Fabry disease, Tangier disease, hereditary sensory autonomic neuropathy, and hereditary amyloidosis.
  11. Statin medications have been linked to peripheral neuropathy, although neuropathy caused by statins only rarely causes symptoms.

While diabetes and postherpetic neuralgia are the most common causes of peripheral neuropathy, oftentimes no cause is found. In these situations, it is referred to as idiopathic peripheral neuropathy.”

Uh-oh, diabetes, Vitamin B12 deficiency, cancer therapy drugs, antibiotics, and statins. Any of these could have caused my neuropathy. Since many Chronic Kidney Disease patients develop diabetes (which is also the foremost cause of CKD), you need to keep your eyes open for the symptoms.

Of course, knowing the symptoms would be helpful. The Mayo Clinic at https://www.mayoclinic.org/diseases-conditions/peripheral-neuropathy/symptoms-causes/syc-20352061 explains:

“Signs and symptoms of peripheral neuropathy might include:

  • Gradual onset of numbness, prickling or tingling in your feet or hands, which can spread upward into your legs and arms
  • Sharp, jabbing, throbbing or burning pain
  • Extreme sensitivity to touch
  • Pain during activities that shouldn’t cause pain, such as pain in your feet when putting weight on them or when they’re under a blanket
  • Lack of coordination and falling
  • Muscle weakness
  • Feeling as if you’re wearing gloves or socks when you’re not
  • Paralysis if motor nerves are affected

If autonomic nerves are affected, signs and symptoms might include:

  • Heat intolerance
  • Excessive sweating or not being able to sweat
  • Bowel, bladder or digestive problems
  • Changes in blood pressure, causing dizziness or lightheadedness”

Treatment may be any number of things. Medical News Today at https://www.medicalnewstoday.com/articles/147963#treatment elucidates for us:

“Treatment either targets the underlying cause, or it aims to provide symptomatic pain relief and prevent further damage.

In the case of diabetic neuropathy, addressing high blood sugars can prevent further nerve damage.

For toxic causes, removing the exposure to a suspected toxin, or stopping a drug, can halt further nerve damage.

Medications can relieve pain and reduce burning, numbness, and tingling.

Drug treatment for neuropathic pain

Medications that may help include:

  • drugs normally used for epilepsy, such as carbamazepine
  • antidepressants, such as venlafaxine
  • opioid painkillers, for example, oxycodone or tramadol

Opioid painkillers come with warnings about safety risks.

Duloxetine may help people with chemotherapy-induced neuropathy.

Doctors can also prescribe skin patches, such as Lidoderm, for temporary, localized pain relief. This contains the local anesthetic lidocaine. The patches are like bandages, and they can be cut to size.

The choice of drug should take into account medications for other conditions, to avoid unwanted interactions.”

Before I close, do you remember my writing about Flavis’s low protein products? We combined their penne with Bear’s signature ground turkey spaghetti sauce and it was exquisite. I’m not one for heavy pasta, so I really liked how light and delicate it tasted.

Until next week,

Keep living your life!

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