Animal Researche: 18pt;">Berberine may be helpful for alleviating allergies and autoimmune disorders.
Berberine is a bio-active compound found in a wide variety of plants, some of which are used in traditional medicine practices. In terms of immune system function, it may help through:
- Anti-inflammatory activity. Berberine helps alleviate the inflammation seen in allergies and autoimmune conditions.
- Antimicrobial activity. Berberine may help stop the growth of harmful bacteria and fungi.
Berberine is a compound found in four herbs used in traditional Chinese medicine – Cortex Phellodendri (huangbai), Rhizoma coptidis (huanglian), Hydrastis canadensis (goldenseal) and Coptis chinesis (goldthread). These herbs were used to help with conditions characterized by “heat” such as fever, diarrhea, and other types of inflammation.
Contemporary medical research has demonstrated that berberine possesses anti-diabetic, cholesterol-reducing, and anti-inflammatory effects. Consequently, berberine supplements are growing in popularity for helping alleviate diabetes, elevated cholesterol, and conditions characterized by inflammation.
Animal studies suggest that much akin to curcumin, berberine can help suppress an overactive immune system and thus help with autoimmune or inflammatory conditions such as type 1 diabetes, IBD, and allergies.
How Berberine Might Help With Immunity
Research suggests that berberine works primarily by suppressing immune system activity – a mechanism employed by a wide range of immunosuppressive drugs. It appears to achieve this through inhibiting signaling pathways that stimulate the production of pro-inflammatory cytokines, such as the MAPK and NF-κB pathway. As a result, berberine suppresses the levels of cytokines that promote inflammation and play a key role in allergic and autoimmune responses, such as TNF, IFN-γ, KC, IL-10 and IL-17. 1
In addition, there is also some early evidence that berberine has antimicrobial properties, which may help with infections caused by bacteria and fungi.
Animal studies indicate that berberine can help alleviate allergies and a wide range of inflammatory, autoimmune disorders.
This study examined the use of berberine for alleviating inflammatory bowel disease (IBD), a common autoimmune condition. Mice with induced colitis and intestinal injury were given berberine for 3 days. The treatment was found to alleviate body weight loss and inflammation and injury to the intestines, effects which were accompanied by a reduction in levels of pro-inflammatory cytokines.
- The researchers concluded that “…berberine may represent a new therapeutic approach for treating gastrointestinal inflammatory disorders.”4
In this study, mice with type 1 diabetes were given berberine for 2 weeks. The treatment was found to prevent progression of diabetes in half of the mice by decreasing the activity of Th1 and Th17, two subtypes of T helper immune cells that promote the inflammation that characterizes type 1 diabetes.
- The researchers concluded that “berberine differentially regulates MAPK activity to control Th17 and Th1 differentiation. This could be favorable in terms of its therapeutic potential in type 1 diabetes.” 5
For this investigation, mice were split into several groups – control group (no treatment), mice with induced allergic rhinitis from dust mites, and mice with rhinitis given berberine. Mice treated with berberine showed improvement of allergies and had decreased levels of several markers of allergic inflammation, including immunoglobulin E (IgE) levels and eosinophil (white blood cell type) count.
- The researchers concluded that “In our study, Ber reduced allergic inflammation significantly.” 6
This study examined whether berberine may help alleviate rheumatoid arthritis, an autoimmune type of arthritis. The researchers tested the effects of berberine on both isolated cells and in mice with arthritis. Berberine was found to promote the death of malfunctioning dendritic cells, a type of immune cell that plays a major role in autoimmune disorders, and also improved arthritis symptoms in mice.
- The researchers concluded that “Berberine may thus represent a novel therapeutic agent for RA.“7
In this study, mice with experimental autoimmune encephalomyelitis (EAE, an animal model meant to mimic multiple sclerosis) were given berberine daily for 35 days. Berberine was found to improve the condition and related parameters such as blood–brain barrier (BBB) permeability.
- The researchers concluded that “We think that berberine might be a potential therapeutic agent for MS.”8
This study investigated the use of berberine in mice with tubulointerstitial nephritis (TIN), a model of human autoimmune kidney conditions. The mice were given berberine at doses of 10 mg/kg body weight for 3 days, and were examined 2 months later. The treatment was found to significantly reduce injury and improve function of the kidneys.
- The researchers concluded that “...BB has an immunosuppressive effect in the TIN model, which is an analogue of various human kidney autoimmune diseases.”9
Human ResearchThere is currently a lack of clinical studies on the use of berberine for supporting immune system function.
Dosage for Immunity>
Dosage for Immunity>
Supplements in Review Says>
Berberine may help with allergies and autoimmunity. Berberine won’t help you with cold infections, but may be useful for calming an overactive immune system troubled by allergies or autoimmune disorders. The only caveat is that it has yet to be investigated in human studies.
Given the lack of research, it’s best to follow supplement dosages. Most berberine supplements recommend taking 500 – 600 mg 1-3 times daily as needed for dealing with immune-related concerns.
- Li H et al. Berberine ameliorates experimental autoimmune neuritis by suppressing both cellular and humoral immunity. Scand J Immunol. 2014 Jan;79(1):12-9. ↩
- Yu HH et al. Antimicrobial activity of berberine alone and in combination with ampicillin or oxacillin against methicillin-resistant Staphylococcus aureus. J Med Food. 2005 Winter;8(4):454-61. ↩
- Zhu F and Qian C. Berberine chloride can ameliorate the spatial memory impairment and increase the expression of interleukin-1beta and inducible nitric oxide synthase in the rat model of Alzheimer’s disease. BMC Neurosci. 2006 Dec 1;7:78. ↩
- Yan F et al. Berberine promotes recovery of colitis and inhibits inflammatory responses in colonic macrophages and epithelial cells in DSS-treated mice. Am J Physiol Gastrointest Liver Physiol. 2012 Mar 1;302(5):G504-14. ↩
- Cui G et al. Berberine differentially modulates the activities of ERK, p38 MAPK, and JNK to suppress Th17 and Th1 T cell differentiation in type 1 diabetic mice. J Biol Chem. 2009 Oct 9;284(41):28420-9. ↩
- Kim BY et al. Berberine reduce allergic inflammation in a house dust mite allergic rhinitis mouse model. Rhinology. 2015 Dec;53(4):353-8. ↩
- Hu Z et al. Berberine induces dendritic cell apoptosis and has therapeutic potential for rheumatoid arthritis. Arthritis Rheum. 2011 Apr;63(4):949-59. ↩
- Ma X et al. Berberine Attenuates Experimental Autoimmune Encephalomyelitis in C57 BL/6 Mice. PLoS One. 2010 Oct 19;5(10):e13489. ↩
- Marinova EK et al. Suppression of experimental autoimmune tubulointerstitial nephritis in BALB/c mice by berberine. Immunopharmacology. 2000 Jun;48(1):9-16. ↩