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Jan M Keppel Hesselink, Ciro Costagliola, Josiane Fakhry, David J Kopsky
Retinopathy is a threat to the eyesight, and glaucoma and diabetes are the main causes for the damage of retinal cells. Recent insights pointed out a common pathogenetic pathway for both disorders, based on chronic inflammation. Palmitoylethanolamide (PEA) is an endogenous cell protective lipid. Since its discovery in 1957 as a biologically active component in foods and in many living organisms, around 500 scientific papers have been published on PEA's anti-inflammatory and neuron-protective properties. PEA has been evaluated for glaucoma, diabetic retinopathy, and uveitis, pathological states based on chronic inflammation, respiratory disorders, and various pain syndromes in a number of clinical trials since the 70s of 20th century...
2015: Journal of Ophthalmology
Daniela Impellizzeri, Giuseppe Bruschetta, Marika Cordaro, Rosalia Crupi, Rosalba Siracusa, Emanuela Esposito, Salvatore Cuzzocrea
BACKGROUND: The fatty acid amide palmitoylethanolamide (PEA) has been studied extensively for its anti-inflammatory and neuroprotective actions. The lipidic nature and large particle size of PEA in the native state may limit its solubility and bioavailability when given orally, however. Micronized formulations of a drug enhance its rate of dissolution and reduce variability of absorption when orally administered. The present study was thus designed to evaluate the oral anti-inflammatory efficacy of micronized/ultramicronized versus nonmicronized PEA formulations...
2014: Journal of Neuroinflammation
J M Keppel Hesselink
Chronic idiopathic axonal polyneuropathy is a frequent diagnosis in patients suffering from idiopathic polyneuropathy and neuropathic pain. No guidelines exist on how to treat these patients. To date, there are no results available from randomized clinical trials, and mostly classical neuropathic analgesics are prescribed, such as amitriptyline and gabapentine. However, the usefulness of these drugs is limited, as many patients remain in pain despite treatment, or suffer debilitating side effects. Palmitoylethanolamide (PEA) is a new analgesic compound, tested in more than 4,000 patients in various clinical trials in a variety of patients suffering from various neuropathic pain states...
2013: International Medical Case Reports Journal
Jan M Keppel Hesselink
The history of development of new concepts in pharmacology is a highly interesting topic. This review discusses scientific insights related to palmitoylethanolamide (PEA) and its progression over a period of six decades, especially in light of the work of the science sociologists, Ludwig Fleck and Thomas Kuhn. The discovery of the cannabis receptors and the nuclear peroxisome proliferator-activated receptors was the beginning of a completely new understanding of many important homeostatic physiologic mechanisms in the human body...
2013: Journal of Pain Research
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