LDN: A Game Changer for Many Patients
LDN: A Game Changer for Many Patients – By Pamela W. Smith, MD, MPH, MS
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I have been using LDN for the last 8 years for a whole range of medical condition. Sometimes the results have been dramatic. Most of these patients had seen a number of doctors/specialists with varying results. Not everyone responds so well to LDN, but it is worth trying as it is so safe and does not interfere with other treatment given. A number of specialists are now starting to use it as well, which is good development.
LDN: A Game Changer for Many Patients
By Pamela W. Smith, MD, MPH, MS
I have been blessed to be a physician for 44 years. It is rare in my career that there is a drug that comes out that is a game-changer for many patients. Compounded low-dose naltrexone (LDN) is one of those medications.
Naltrexone has traditionally been used for drug overdose. Naltrexone is a reversible competitive antagonist at μ-opioid and κ-opioid receptors, which when used at standard doses of 50 to 150 mg was initially intended for use in opioid and alcohol use disorders.
In recent years, there have been novel and significant findings on the off-label usage of naltrexone in much lower dosage forms for many purposes. The following are some examples.1
- Immune modulator in autoimmune diseases
- Chronic pain control
- Weight loss
- Reduction of cytokine storm
Some of the proposed mechanisms of action include blockade of the opioid growth factor receptor (OGFR) axis, which normally stimulates B and T cell proliferation and stimulation of beta-endorphin and enkephalin release, which has anti-inflammatory effects on T and B cells.2 In addition, a study examined how LDN also helped to normalize immune system function.3 Moreover, low-dose naltrexone has shown promise to reduce symptoms related to chronic pain conditions such as fibromyalgia, inflammatory bowel conditions, and multiple sclerosis. The mechanism of action appears to be modulation of neuro-inflammation, specifically, the modulation of the glial cells and the release of inflammatory chemicals in the central nervous system.4 Consequently, LDN has also been shown to be very effective for pain control.5
Low-dose naltrexone has many references in the medical literature concerning its use in different diseases. This exposé will explore the use of LDN in a multitude of medical disorders.
Autoimmune Diseases That Are Not Dermatological Disorders
Consider using LDN for every patient with an autoimmune disease. For example, LDN has been reported to reduce not only self-reported pain in Crohn’s but also lower objective markers of inflammation and disease severity. The response rate of LDN in Crohn’s disease was over 80 % of the participants exhibiting significant improvement in several studies. 6-8 In another study, low-dose naltrexone induced clinical improvement in 74.5%, and remission in 25.5% of patients with inflammatory bowel disease. In addition, LDN directly improved epithelial barrier function by improving wound healing and reducing mucosal endoplasmic reticulum stress levels in yet another trial. The authors concluded that low-dose naltrexone treatment was effective and safe and could be considered for the treatment of refractory IBD patients.9
Low-dose naltrexone has also shown some promise in improving disease severity in multiple sclerosis (MS). LDN significantly improved mental health quality of life indices.10 Moreover, a 17-week randomized, double-blind, placebo-controlled, parallel-group, crossover-design clinical trial was conducted at two universities. A total of 96 adult patients ages 15 to 65 years with relapsing-remitting or secondary progressive clinically definite MS with disease duration longer than six months enrolled into a study. The study clearly illustrates that LDN is a relatively safe therapeutic option.11 Likewise, a trial involving MS patients revealed that the use of LDN resulted in inhibited cell proliferation.12
Rheumatoid arthritis is an additional autoimmune disease that LDN works effectively for. In a trial, in persistent LDN users, there was a 13% relative reduction in daily doses of all medicines and a 23% reduction of analgesics. Specifically, persistent LDN users had significantly reduced daily use of NSAID and opioids, and a lower proportion of users of DMARDs, TNF-alpha antagonists, and opioids. The results support the hypothesis that persistent use of LDN reduced the need for medication used in the treatment of rheumatic and seropositive arthritis.13
The discovery of the widely expressed transient receptor potential melastatin 3 (TRPM3) as a nociceptor channel substantially targeted by certain opioid receptors, and its implication in calcium (Ca2+)-dependent natural killer (NK) cell immune functions has raised the possibility that TRPM3 may be pharmacologically targeted to treat characteristic symptoms of myalgic encephalomyelitis (ME)/chronic fatigue syndrome (CFS). The authors of a study reported that ME/CFS patients taking LDN have restored TRPM3-like ionic currents in NK cells. These data support the hypothesis that LDN may have potential as a treatment for ME/CFS by characterizing the underlying regulatory mechanisms of LDN treatment involving TRPM3 and opioid receptors in NK cells.14
Dermatological Disorders: Both Autoimmune and Non-Autoimmune Related
Dermatology is encountering increasing rates of autoimmune diseases manifesting in primary skin conditions that are difficult to treat without a risk of immunosuppression.
Hailey-Hailey disease, also calledbenign familial pemphigus, is a late-onset blistering disorder that affects the flexures. There are typically painful erosions and cracks in affected areas. Lesions generally begin between 20 and 40 years of age. Maceration and superinfections are frequent. The lesions are typically distributed symmetrically within intertriginous regions such as the retroauricular folds, lateral aspects of the neck, axillae, umbilicus, inguinal, and perianal regions. The disease is characterized by a chronic relapsing course with spontaneous remissions and multiple recurrences. Severe disease can be very frustrating and have a major psychological and social impact. Low-dose naltrexone has been shown to be an effective therapy.15
Lichen planopilaris is an inflammatory, primary cicatricial alopecia with several different patterns of hair loss. It is considered a follicular variant of lichen planus. Findings suggest that low-dose naltrexone is safe and effective in the treatment of Hailey-Hailey disease and lichen planopilaris. Furthermore, LDN successfully treated the pruritus associated with this and other dermatological disorders.16,17
Likewise, LDN has been shown to improve dermatologic conditions such as systemic sclerosis.18
In addition, a study revealed that the PI3K/AKT/mTOR pathway was significantly inhibited by 1% Naltrexone HCl in XemaTop™, suggesting protein synthesis was affected. The production of IL-6 was inhibited by 70% in drug-treated tissues. The results suggest that this compounded drug is efficacious in down-regulating molecular markers associated with the pathogenesis of psoriasis and provides a basis for a clinical evaluation of 1% Naltrexone HCl in XemaTop™ in psoriasis patients.19 Moreover, a patient with a history of psoriasis was treated with 4.5 mg of LDN during a flare-up. She showed significant improvement in her flare-up and psoriasis remission after only three months of 4.5 mg of LDN nightly.20 In another case report, a 60-year-old white female was successfully treated with LDN for her moderate plaque psoriasis over a six-month period. 21
Guttate psoriasis is aless common form of psoriasis. It manifests with numerous small, teardrop shaped, scaly plaques on the trunk and extremities. The etiology includes both environmental and genetic factors. It commonly arises three to four weeks following a beta hemolytic streptococcal infection. It is more common in children and adolescents than adults.22 LDN has been shown to be beneficial in a case report: 80% improvement was seen in two months.23
Atopic dermatitis is a pruritic, hereditary skin disorder and is the most common form of eczema. The life-time prevalence is 10% to 20% with many cases starting as a baby. Twenty percent to 40% of people continue to have atopic dermatitis as adults.24 A double-blind, placebo-controlled study studied 38 patients with eczema complaining of pruritus. The study found that LDN was more effective than placebo in the treatment of pruritus in patients with eczema.25
As you have seen, LDN likewise works wonderfully topically for itching. The objective of another trial was to correlate the clinical efficacy of topically applied naltrexone in different pruritic skin disorders to a change of epidermal μ-opiate receptor (MOR) expression. The findings supported by the biopsy showed regulation of MOR expression in the epidermis after treatment with topical naltrexone.26
Low-dose naltrexone has been shown to be a promising complementary medication for patients with a broad range of medical disorders as already discussed. Although not a proven cure, evidence from clinical trials supports LDN as being a valuable adjunct for disorders in which the immune system plays a centralized role. One of these diseases processes is cancer. Clinical trials have proposed a unique mechanism(s) allowing LDN to affect tumors, including non-small cell lung cancer, at the cellular level by augmenting the immune system.27,28
Moreover, it has been reported that at lower doses naltrexone is able to reduce tumor growth by interfering with cell signaling. Scientists evaluated the gene expression profile of a cancer cell line after treatment with low-dose naltrexone and assessed the effect that adapting treatment schedules with LDN may have on enhancing efficacy. LDN had a selective impact on genes involved with cell cycle regulation and immune modulation. Similarly, the pro-apoptotic genes BAD and BIK1 were increased only after LDN use. Continuous treatment with LDN had little effect on growth in different cell lines; however, altering the treatment schedule to include a phase of culture in the absence of drug following an initial round of LDN treatment, resulted in enhanced cell killing. Furthermore, cells pre-treated with LDN were more sensitive to the cytotoxic effects of a number of common chemotherapy agents. This data supports further the idea that LDN possesses anticancer activity, which can be improved by modifying the treatment schedule.29
Irritable Bowel Syndrome (IBS)
Forty-two IBS patients participated in an open-label study. Global assessment improved in 76% of the patients that used LDN. There were no significant adverse reactions.30
Low-dose naltrexone has been used off-label for treatment of pain and inflammation in multiple sclerosis, Crohn’s disease, fibromyalgia, and other diseases.31 At the low dosage level, naltrexone exhibits paradoxical properties, including analgesia and anti-inflammatory actions, which have not been reported at larger dosages.32-35
The mechanisms by which LDN might relieve pain are not all known. Among the several postulated explanations are that by blocking opioid receptors, LDN provokes a compensatory elevation of endogenous opioids.36,37 In addition, LDN attenuates inflammatory responses by blocking receptors on immune cells.38 It also reduces pro-inflammatory cytokines and superoxides.39-41 These effects appear to be unique at low dosage, compared to FDA-approved dosage for alcohol and opioid dependence.42 When used in doses of 1 to 5 mg, LDN acts as a glial modulator with a neuroprotective effect via inhibition of microglial activation. It also binds to toll-like receptor 4 and acts as an antagonist, therefore inhibiting the downstream cellular signaling pathways that ultimately lead to pro-inflammatory cytokines, therefore reducing inflammatory response. In addition, LDN has been found to be neuroprotective by modulating mitochondrial apoptosis.43
Low-dose naltrexone has been used in many disease processes for pain control.
- One study showed that LDN was an effective therapy for diabetic neuropathy.44
- Another study suggests that the novel TLR4 antagonists naloxone and naltrexone can each fully reverse established neuropathic pain upon multi-day administration.45
- LDN has been shown to be an effective treatment for fibromyalgia.46 LDN reduced fibromyalgia pain significantly greater than placebo in six out of the 10 women. While the pilot study was encouraging, it had limitations such as a single-blind design. To help validate the findings, a second study in 30 women with fibromyalgia was conducted. In that double-blind, crossover, counterbalanced study, 57% of the participants were observed to exhibit a significant (1/3) reduction of pain during LDN. At the end of the LDN treatment, half of the participants reported feeling “much improved” or “very much improved” from LDN.47 Moreover, in a 10-week, single-blind, crossover pilot trial the authors tested the immune effects of eight weeks of oral administration of low-dose naltrexone (LDN). They found that LDN was associated with reduced plasma concentrations of interleukin (IL)-1β, IL-1Ra, IL-2, IL-4, IL-5, IL-6, IL-10, IL-12p40, IL-12p70, IL-15, IL-17A, IL-27, interferon (IFN)-α, transforming growth factor (TGF)-α, TGF-β, tumor necrosis factor (TNF)-α, and granulocyte-colony stimulating factor (G-CSF). They also found a 15% reduction of fibromyalgia-associated pain and an 18% reduction in overall symptoms.48
- In a case report, the patient was a 35-year-old male who had experienced nonspecific left-side chronic low back pain for two years and many therapies had been tried. LDN successfully improved his refractory chronic low back pain.49
- Complex regional pain syndrome (CRPS) is a neuropathic pain syndrome, which involves glial activation and central sensitization in the central nervous system. The authors describe positive outcomes of two CRPS patients, after they were treated with low-dose naltrexone in combination with other CRPS therapies. Prominent CRPS symptoms remitted in these two patients, including dystonic spasms and fixed dystonia (respectively), following treatment with low-dose naltrexone. These patients had previously failed conventional therapies.50
Given the proposed dopaminergic mechanism of LDN, researchers examined its efficacy as augmentation for depressive breakthrough on pro-dopaminergic antidepressant regimens. LDN was shown to be beneficial for breakthrough symptoms of major depressive disorders that are already on antidepressants.51
Moreover, since LDN can upregulate endogenous opioid activity, it may also have a role in promoting stress resilience, exercise, social bonding, and emotional well-being, as well as amelioration of psychiatric problems such as autism and depression. It is proposed that LDN can be used effectively as a buffer for a large variety of bodily and mental ailments through its ability to beneficially modulate both the immune system and the brain neurochemistry that regulate positive affect.52
Low-dose naltrexone refers to daily dosages of naltrexone that are approximately one-tenth of the typical opioid addiction treatment dosage. In most published research, the daily dosage is 4.5 mg with the dose ramped up to this level over a three-week time frame—although the dosage can vary a few milligrams below or above that common value.53-55 Consequently, there are now many dosage forms used for low-dose naltrexone, including ultralow-dose naltrexone. The closely related concept of ultralow-dose naltrexone involves the use of microgram, nanogram, and picogram dosages of naltrexone co-administered with opioid analgesics.56
There are a few possible short-term side effects that may occur with the use of LDN: insomnia, vivid dreams, fatigue, loss of appetite, nausea, hair thinning, mood swings, and mild disorientation. They are usually dose dependent. Consequently, lowering the dose usually resolves the short-term symptoms. Potential long-term side effects include the following: possible liver and kidney toxicity, possible tolerance to the beneficial effects (rebound effect), and other unknown sequelae. Low-dose naltrexone is contraindicated in individuals with acute hepatitis, liver failure, and recent or current opioid use or alcohol abuse. Although, as previously mentioned, ultra-low-dose naltrexone is now being used judiciously if the patient is on a mild narcotic in limited cases.
LDN has been used by practitioners world-wide for many disorders. 57
Click Here for the List of Conditions LDN Could Help
There are many etiologies of inflammation. One of them is infection.58 Coronavirus disease 2019 (COVID-19) and the risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) poses a particular risk to people living with preexisting conditions that impair immune response or amplify a pro-inflammatory response. Early identification of possible hyperinflammation in these patients, and all individuals, is fundamental in having effective therapies for patients with COVID-19 and post COVID-19 syndrome.59
A very important article points out that the critical point where progressive COVID-19 ensues, appears to center on loss of the immune regulation between protective and altered responses due to exacerbation of the inflammatory components. 60
In our practice, we use LDN to treat patients with all stages of COVID, from asymptomatic COVID to severe cases of COVID, to COVID-Long Haul Syndrome and have had excellent results.
Low-dose naltrexone plays a major role in the treatment of many different diseases. In the world of medicine, it is truly a game changer.
1 Li, Z., et al., “Low-dose naltrexone (LDN): A promising treatment in immune-related diseases and cancer therapy,” Int Immunopharmacol 2018; 61:178-84.
2. Strazzulla, L., et al., “Novel treatment using low-dose naltrexone for lichen planopilaris,” Jour Drugs Derm 2017; 16(11):1140-42.
3. Bihari, B., “Low-dose naltrexone for normalizing immune system function,” Altern Ther Health Med 2013; 19(2):56–65.
4. Kim, P., et al., “Low-dose naltrexone for chronic pain: Update and systemic review,” Curr Pain Headache Rep 2020; 24(10):64.
5. Patten, D., et al., “The safety and efficacy of low-dose naltrexone in the management of chronic pain and inflammation in multiple sclerosis, fibromyalgia, Crohn’s disease and other pain disorders,” Pharmacotherapy 2018; 38(3):382-89.
6. Smith, J., et al., “Therapy with the opioid antagonist naltrexone promotes mucosal healing in active Crohn’s disease: a randomized placebo-controlled trial,” Dig Dis Sci 2011; 56(7):2088–97.
7. Smith, J., et al., “Low-dose naltrexone therapy improves active Crohn’s disease,” Amer Jour Gastroenterol 2007; 102(4):820–28.
8. Smith, J., et al., “Safety and tolerability of low-dose naltrexone therapy in children with moderate to severe Crohn’s disease: a pilot study, Jour Clin Gastroenterol 2013; 47(4):339–45.
9. Lie, M., et al., “Low dose naltrexone for induction of remission in inflammatory bowel disease patients,” Jour Transl Med 2018; 16(1):55.
10. Cree, B., et al., “Pilot trial of low-dose naltrexone and quality of life in multiple sclerosis,” Ann Neurol 2010; 68(2):145–50.
11. Sharafaddinzadeh, N., et al., “The effect of low-dose naltrexone on quality of life of patients with multiple sclerosis: a randomized placebo-controlled trial,” Mult Scler 2010; 16(8):964–69.
12. Ludwig, M., et al., “Serum [Met5]-enkephalin levels are reduced in multiple sclerosis and restored by low-dose naltrexone,” Exp Biol Med 2017; 242(15):1524–33.
13. Raknes, C., et al., “Low dose naltrexone: Effects on medication in rheumatoid and seropositive arthritis. A nationwide register-based controlled quasi-experimental before-after study,” PLoS One 2019; 14(2):e0212460.
14. Cabanas, H., et al., “Potential therapeutic benefit of low dose naltrexone in myalgic encephalomyelitis/chronic fatigue syndrome role in transient receptor potential melastatin 3 ion channels in pathophysiology and treatment,” Front Immunol 2021; 12:687806.
15. Albers, L., et al., “Treatment of Hailey-Hailey disease with low-dose naltrexone,” JAMA Dermatol 2017; 153(10):1018-20.
16. Ekelem, C., et al., “Utility of naltrexone treatment for chronic inflammatory dermatologic conditions: A systematic review,” AMA Dermatol 2019; 155(2):229-36.
17. Jaros, J., et al., “Low-dose naltrexone in dermatology,” Jour Drugs Dermatol 2019; 18(3):235-38. 18. Fretch, T., et al., “Low-dose naltrexone for pruritus in systemic sclerosis,” Int Jour Rheuatol 2011; 2011:804296.
19. Kendice, I., et al., “In vitro evaluation of Naltrexone HCl 1% topical cream in XemaTop™ for psoriasis,” Arch Dermatol Res 2020; 312(2):145-54. LDN: A Game Changer for Many Patients References Complete References Townsendletter.com Subscribe Today!
20. Monasterio, E., “Low-dose naltrexone: An alternative treatment for erythrodermic psoriasis,” Cureus 2019; 11(1):e3943.
21. Bridgman, A., et al., “Treatment of psoriasis vulgaris using low-dose naltrexone,” JAAD Case Rep 2018; 4:827-29.
22. Saleh, D., et al., Guttate Psoriasis. Stat Pearls (Internet). Treasure Island, FL: StatPearls Publishing, 2022.
23. Muller, G., et al., “Compounded low-dose naltrexone for the treatment of guttate psoriasis: A case report,” Int Jour Pharm Compounding 2018; 22(4):270-78.
24. Habif, T., Atopic Dermatitis in Clinical Dermatology 5th Ed., St. Louis: Mosby, 2010.
25. Malekzad, F., et al., “Efficacy of oral naltrexone on pruritus in atopic eczema: a double-blind, placebocontrolled study,” Jour Eur Acad Dermatol Venereol 2009; 23(8):948-50.
26. Bigliardi, P., et al., “Treatment of pruritus with topically applied opiate receptor antagonist,” Jour Amer Acad Derm 2007; 56(6):979-88.
27. Miskoff, J., et al., “Low dose naltrexone and lung cancer: a case report and discussion,” Cureus 2018; 10(7):e2924.
28. Li, Z., et al., “Low-dose naltrexone (LDN): a promising treatment in immune-related diseases and cancer therapy,” Int Immunopharmacol 2018; 61:178–84.
29. Liu, W., et al., “Naltrexone at low doses upregulates a unique gene expression not seen with normal doses: Implications for its use in cancer therapy,” Int Jour Oncol 2016; 49(2):793-802.
30. Kariv, R., et al., “Low-dose naltrexone for the treatment of irritable bowel syndrome: a pilot study,” Dig Dis Sci 2006; 51(12):2128-33.
31. Ibid., Patten.
32. Gold, M., et al., “Naltrexone, opiate addiction, and endorphins,” Med Res Rev 1982; 2(3):211–16. 33. Bihari, B., et al., “Low-dose naltrexone for normalizing immune system function,” Altern Ther Health Med 2013;19(2):56–65.
34. Zagon, I., et al., “Opioid antagonist modulation of murine neuroblastoma: a profile of cell proliferation and opioid peptides and receptors,” Brain Res 1989; 480(1–2):16–28.
35. Smith, J., et al., “Low-dose naltrexone therapy improves active Crohn’s disease,” Amer Jour Gastroenterol 2007; 102(4):820–28.
36. Gold, M., et al., “Naltrexone, opiate addiction, and endorphins,” Med Res Rev 1982; 2:211-46.
37. Trofimovitch, C., et al., “Pharmacology update: Low-dose naltrexone as a possible nonopioid modality for some chronic, nonmalignant pain syndromes,” Amer Jour Hosp Palliat Care 2019; 36(10):907-12.
38. Liu, B., et al., “Neuroprotective effect of naloxone in inflammation-mediated dopaminergic neurodegeneration: Dissociation from the involvement of opioid receptors,” Methods Mol Med 2002; 79; 43-54.
39. Liu, B., et al., “Reduction by naloxone of lipopolysaccharide-induced neurotoxicity in mouse cortical neuron-glia cocultures,” Neurosci 2000; 97:749-56.
40. Czlonkowski, A., et al., “Peripheral mechanisms of opioid antinociception in inflammation: Involvement of cytokines,” Eur Jour Pharmacol 1993; 242:229-35.
41. Younger, J., et al., “The use of low-dose naltrexone (LDN) as a novel anti-inflammatory treatment for chronic pain,” Clin Rheumatol 2014; 33(4):451-59.
42. Kim, P., et al., “Low-dose naltrexone for chronic pain: Update and systematic review,” Curr Pain Headache Rep 2020; 24(10):64.
43. San-Emeterio, E., et al., “Modulation of brain apoptosis-related proteins by the opioid antagonist naltrexone in mice,” Neurosci Lett 2006; 403:276-79.
44. Hota, D., et al., “Off-label, low-dose naltrexone for refractory painful diabetic neuropathy,” Pain Med 2016; 17(4):790–91.
45. Hutchinson, M., et al., “Non-stereoselective reversal of neuropathic pain by naloxone and naltrexone: involvement of toll-like receptor 4 (TLR4),” Eur Jour Neruosci 2008; 28(1):20–9.
46. Younger, J., et al., “Fibromyalgia symptoms are reduced by low-dose naltrexone: a pilot study,” Pain Med 2009; 10(4):663–72. LDN: A Game Changer for Many Patients References Complete References Townsendletter.com Subscribe Today!
47. Younger, J., et al., “Low-dose naltrexone for the treatment of fibromyalgia: findings of a small, randomized, double-blind, placebo-controlled, counterbalanced, crossover trial assessing daily pain levels,” Arthritis Rheum 2013; 65(2):529–38.
48. Parkitny, L., et al., “Reduced pro-inflammatory cytokines after eight weeks of low-dose naltrexone for fibromyalgia,” Biomedicines 2017; 5(2):E16.
49. Ghai, B., et al., “Off-label, low-dose naltrexone for refractory chronic low back pain,” Pain Med 2014; 15(5):883–84.
50. Chopra, P., et al., “Treatment of complex regional pain syndrome (CRPS) using low dose naltrexone (LDN),” Jour Neuroimmune Pharmacol 2013; 8(3): 470-76.
51. Mischoulon, D., et al., “Randomized, proof-of-concept trial of low dose naltrexone for patients with breakthrough symptoms of major depressive disorder on antidepressants,” Jour Affect Disord 2017; 208:6–14.
52. Brown, N., et al., “Low-dose naltrexone for disease prevention and quality of life,” Med Hypotheses 2009; 72(3):333–37.
53. Smith, J., et al., “Therapy with the opioid antagonist naltrexone promotes mucosal healing in active Crohn’s disease: a randomized placebo-controlled trial,” Dig Dis Sci 2011; 56(7):2088–97.
54. Younger, J., et al., “Low-dose naltrexone for the treatment of fibromyalgia: findings of a small, randomized, double-blind, placebo-controlled, counterbalanced, crossover trial assessing daily pain levels,” Arthritis Rheum 2013; 65(2):529–38.
55. Cree, B., et al., “Pilot trial of low-dose naltrexone and quality of life in multiple sclerosis,” Ann Neurol 2010; 68(2):145–50.
56. Davis, M., et al., “Oxycodone combined with opioid receptor antagonists: efficacy and safety,” Expert Opin Drug Saf 2013; 12(3):389–402.
58. Furman, D., et al., “Chronic inflammation in the etiology of disease across the life span,” Nat Med 2019; 25(12):1822032.
59. Chiappetta, S., et al., “COVID-19 and the role of chronic inflammation in patients with obesity,” Int Jour Obes (Lond) 2020; 44(8):1790-92.
60. Garcia, L., et al., “Immune response, inflammation, and the clinical spectrum of COVID-19,” Front Immunol 2020; 11:1441. TownsendLetter.com/get-involve
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