Alcoholic Neuropathy: Causes, Symptoms and Diagnosis

There are several studies suggesting the involvement of protein kinases in alcoholic neuropathy. Dina et al. [16] maintained rats on a diet to simulate chronic alcohol consumption in humans and found mechanical hyperalgesia by the fourth week which was maximal at 10 weeks. Thermal hyperalgesia and mechanical allodynia were also present with decreased mechanical threshold of C-fibres. The hyperalgesia alcohol neuropathy stages was acutely attenuated by intradermal injection of nonselective PKC or selective PKCε inhibitors injected at the site of nociceptive testing. Western immunoblot analysis indicated a higher level of PKCε in dorsal root ganglia from alcohol-fed rats, supporting a role for enhanced PKCε second messenger signalling in nociceptors contributing to alcohol-induced hyperalgesia [16].

Topical Collection on The Pathobiology of Alcohol Consumption

• And a doctor may use brain-imaging techniques to monitor treatment over time.
• The prevalence of denervation findings on EMG ranged from muscle to muscle, with the highest being in the muscles of the lower limbs suggesting a length-dependent pattern [35, 45, 52, 59].
• The leakage was negligible, hence, not affecting the calculations of consumption.
• In a 2019 study, researchers showed that quitting alcohol had a positive effect on most people’s mental well-being.

ALN further manifests as weakness and atrophy of muscles due to the damage of greater motor fibers and impaired neuromuscular transmission. In order to diagnose ALN, usually, several tests are needed to be performed to provide a complete and reliable diagnosis. Besides blood chemistry test and complete blood count (CBC), esophagogastroduodenoscopy is needed when a patient vomits and has nausea for an unknown reason; X-rays of the gastrointestinal tract can also be performed. Electromyography and nerve conduction tests are performed in order to reveal signs of ALN. Sensory functions and reflexes can be tested during a neurological examination.

Types and symptoms of alcohol-related neurologic disease

Both function and integrity of the afferent fibers can be inferred by the tactile response that is impaired in neuropathic conditions. To evaluate the tactile sensitivity of animals, the sensibility test with the Von Frey monofilaments (Touch Test™ Sensory Evaluator Kit of 20 – Leica Biosystems, Germany) was conducted, which is inexpensive and used in the clinical settings as well. These monofilaments were used in an increasing order of thickness (starting at 6 g), on the plantar surface of the pelvic limb of the animal only when it was immobile and standing on the four limbs on a mesh floor.

Management of alcohol-induced peripheral neuropathy

Alcoholic neuropathy is a condition in which the nerves become damaged as a result of years of heavy alcohol consumption. Symptoms include burning pain in the body, hyperalgesia (increased sensitivity to pain), and allodynia (a condition in which normal stimulus, like a soft touch, produces pain). It is important to stop drinking if you suffer from alcoholic polyneuropathy in order to stop the disease from getting worse and to correct the nutritional imbalance that is damaging the nerves and interfering with the nervous system.

In an animal study, it has been found that chronic alcohol consumption in rats resulted in a significant depletion in thiamine diphosphate (TDP), the active coenzyme form of thiamine. Supplementation with benfotiamine significantly increased concentrations of TDP and total thiamine compared with supplementation with thiamine HCl [96]. An 8 week, randomized, multicentre, placebo-controlled, double-blind study compared the effect of benfotiamine alone with a benfotiamine complex (Milgamma-N) or placebo in 84 alcoholic patients. Parameters measured included vibration perception in the great toe, ankle and tibia, neural pain intensity, motor function and paralysis, sensory function and overall neuropathy score and clinical assessment. Although benfotiamine therapy was superior to Milgamma-N or placebo for all parameters, results reached statistical significance only for motor function, paralysis and overall neuropathy score. The reason for better results in the benfotiamine alone group than in the Milgamma-N group, despite the fact that the benfotiamine dosage was equivalent, is not completely understood.

Alcoholic Polyneuropathy – Signs, Symptoms, And Treatment

Prevalence of alcoholic neuropathy

• Alcohol abuse affects the peripheral and the central nervous system adversely.
• Patients may stand and walk with a wide base of support to maintain balance.
• Alcoholic neuropathy is progressive damage to peripheral nerves and, in extreme cases, the autonomic nervous system, through chronic, heavy alcohol use.
• Alcohol abuse treatment might lead to a resolution of neuropathic pain and alleviation of its symptoms.
• The most important strategy against alcoholic neuropathy lies in preventing the symptoms from getting worse by decreasing alcohol consumption as soon as possible.
• We found more potent effects with tocotrienol as compared with α-tocopherol [55].