Herbs that May Assist
Curcumin
Turmeric longa, root
BosPure® Boswellia
Boswellia serrata, dry gum oleoresin
Rhuleave-K™
Actions
- Anti-inflammatory
- Analgesic and antinociceptive
Clinical Applications
- ·Acute pain
Curcumin and Boswellia (Rhuleave-K™) for Rapid Pain Relief
Inflammatory pain is a prominent health burden. To help manage acute pain, Rhuleave-K™ is a clinically proven blend of curcumin derived from Curcuma longa and Boswellia serrata (boswellia) within black sesame oil that offers effective analgesia. In human studies, this combination reduces muscular pain within 63 minutes,[1] offering a similar time-to-effect as paracetamol.[2] Rhuleave-K™ features innovative SPEEDTECH™ technology with particle micronisation and a phospholipid-rich sesame oil delivery system[3] to enhance ingredient absorption,[4] providing a fast-acting solution for inflammatory pain.
Background Information
Inflammation is an adaptive response caused by tissue damage mediated in four stages[5]:
- Cell receptors activation that induce intracellular signalling (e.g. toll-like receptors [TLRs], NOD-like receptor pyrin domain containing 3 [NLRP3]).
- Messenger proteins that relay signals into nuclei (e.g. peroxisome proliferator-activated receptor gamma [PPAR-γ] and IkappaB kinase [IKK]).
- Inflammatory transcription factors that enter nuclei and interact with DNA, such as nuclear factor kappa B (NFκB), to stimulate the transcription of:
- Effector mediators released into tissue, including interleukin 6 (IL-6) and tumour necrosis factor alpha (TNF-α); and, pro-inflammatory enzymes (e.g. cyclooxygenases [COX]) which promote arachidonic acid inflammatory pathways (e.g. prostaglandin activity).
This process promotes the cardinal signs of inflammation: heat, swelling, redness and pain.[6]
To alleviate acute inflammatory pain, paracetamol and non-steroidal anti-inflammatories (NSAIDs) are commonly used. However, complete relief may be difficult to achieve with these alone.[7] Additionally, single doses above >400 mg of ibuprofen [NSAID] and >1,000 mg of paracetamol may result in higher risks of adverse effects.[7] Curcumin and boswellia within Rhuleave-K™ have been shown to achieve comparable outcomes to paracetamol[2] and NSAIDs[8,9] offering individuals an effective alternative to OTC pain treatments.
Unique to the manufacture of Rhuleave-K™, proprietary SPEEDTECH™ technology with micronised botanical particles within a phospholipid-rich base[3] to create a highly bioavailable dispersion. For this reason, anti-inflammatory benefits of Rhuleave-K™ can support effective management.[4,10-12]
Actions
Anti-inflammatory
Boswellia and curcumin target several stages of inflammation. Boswellia inhibits intermediate messenger molecule IKK in vitro, limiting its effect on promoting NFκB activation.[13] Subsequently, boswellia downregulates pro-inflammatory cytokines, including TNF-α, IL-1 and IL-6, which may help to mitigate acute inflammatory pain.[11] Boswellia also blocks the activity of the enzyme, 5-LOX,[11,14] which plays a key role in attracting pro-inflammatory cells into tissues (e.g. neutrophils and eosinophils).[15]
Curcumin also moderates the inflammatory response.[5] By binding to TLRs and PPAR-γ, curcumin inhibits NFκB and transcriptional signalling molecules that promote inflammation (e.g. Janus kinase [JAK] and signal transducer and activator of transcription [STAT]).[5] Through these mechanisms, curcumin has been observed to lower cytokine levels, such as TNF-α, IL-1, IL-1β, IL-6 and IL-8.[5,16]
Through downregulating transcriptional mediators, curcumin reduces the expression of COX-2 and 5-LOX, which promote the release pro-inflammatory prostaglandins and leukotrienes.[17,18] Interestingly, human studies have shown curcumin-containing extracts to reduce COX-2 levels as effectively as to NSAIDs,[19] further supporting the benefits of curcumin compared to OTC pain relief.
Analgesic and Antinociceptive
Through targeting sensory pain receptors (nociceptors), analgesic agents can help to reduce pain perception. This in turn can help minimise pain sensitivity.[20,21]
Curcumin has been shown to reduce nociception via transient receptor potential vanilloid type 1 (TRPV1) and transient receptor potential ankyrin 1 (TRPA1), which are linked to heightened pain sensitivity.[22,23] In addition, curcumin also stimulates adenosine triphosphate (ATP)-sensitive potassium channels that block nociceptor activation, which further dampens pain transmission.[24] Evidence indicates that curcumin can activate alpha 7 nicotinic acetylcholine receptors (α7-nACh) to reduce nociceptive pain[25] and limit pain sensitivity following injury in animals.[26]
Clinical Applications
Acute Pain
Rhuleave-K™ is comparable to a single dose of acetaminophen (paracetamol) in open-label study (n= 88 healthy subjects; mean age 42 ± 12 years) in individuals with grade 1 musculoskeletal strain.[2] 1,000 mg/d Rhuleave K (equivalent to 266 mg/d curcumin and 1,000 mg/d boswellia extract; n=44) with breakfast was compared to 1,000 mg of acetaminophen (n=44). Outcomes revealed Rhuleave-K™ offered equal benefit to acetaminophen (p<0.001), within 2.5 hours (Figure 2). After six hours, Rhuleave-K™ reduced total pain by 53.1% versus 55.4%, and lowered pain intensity by 37.7% comparable to acetaminophen (38.6%). Rhuleave-K™ treatment improved pain quality and intensity after seven days by 71.8%, akin to OTC drug treatment (73.6%).[2]
Figure 2: Pain reduction with Rhuleave-K™ treatment was comparable to acetaminophen (p<0.001). [2]
The fast-acting benefits of Rhuleave-K™ were documented in 232 healthy individuals (mean age 36.4 years) with exercise-induced muscle pain. These patients received either Rhuleave-K™ (n=116) or placebo (n=116) and were monitored over six hours.[1] Results revealed a reduction of severe pain from greater than 74% to less than 3% in the head, neck, upper and lower limbs, torso and back (p<0.001).
This demonstrated a relative >95% improvement in pain with Rhuleave-K™, while no significant relief occurred in the placebo group. Researchers also observed that perceived pain relief occurred around 63 minutes with active treatment. Further, complete pain relief in the head, neck, upper and lower limb, torso, and back was achieved in 3.1 hours.[1]
In a systematic review and meta-analysis of randomised-controlled clinical trials, researchers analysed data from 159 participants (aged 19.5 to 35.5) with muscle soreness.[16] Pooled statistics revealed that 150 mg/d to 180 mg/d of curcumin achieved a near-significant effect in reducing muscle soreness (p<0.051). Further evaluation revealed this effect was significant in reducing pain in untrained individuals (p<0.001) following resistance exercise (p<0.001) after 72 and 96 hours (p<0.034; p<0.001).[16]
Curcumin has also been observed to reduce inflammatory arthritic pain.[8,19] In a randomised double-blind, placebo-controlled trial, 24 rheumatoid arthritis patients (mean age 36) received 250 mg of curcumin twice daily or placebo for 90 days. Results revealed a 78.1% improvement in joint tenderness and a 80.4% reduction swelling versus 4.4% and 3.7% improvement in the placebo group respectively.[27] This research indicates that ingredients within Rhuleave-K™ can deliver fast-acting pain relief.
Summary of Ingredients
Population |
Study details |
Outcomes |
Healthy subjects (mean age 42 ± 12 years) with grade 1 musculoskeletal strain (<5% loss of function[28]) experiencing acute pain rated 60% to 65% (n=88). |
Randomised open-label study. Single dose 1,000 mg/d Rhuleave-K™ (equivalent to 266 mg/d curcumin + 1,000 mg/d boswellia) with breakfast vs. 1,000 mg acetaminophen (paracetamol)7 days;
|
Pain reduction from baseline with Rhuleave-K™ treatment was comparable to acetaminophen (p<0.001). Both treatments achieved noticeable pain relief within 2.5 hours. Within 6 hours, Rhuleave-K™ achieved a 53.1% reduction in total pain comparable to 55.4% with acetaminophen, as well as 37.7% improvement in pain intensity vs. 38.6% with acetaminophen. After 7 days, Rhuleave-K™ improved pain quality and intensity by 71.8% compared to 73.6% in the acetaminophen group.[2] |
Healthy subjects (mean age 36.4 years) with exercise-induced acute muscle pain (grade 1) rated at 80% (n=232). |
6 hours; Randomised double-blind placebo-controlled study. Single dose 1,000 mg/d Rhuleave-K™ (equivalent to 266 mg/d curcumin + 1,000 mg/d boswellia) vs. placebo |
Pain rated between 74% to 86% in the head, neck, upper and lower limbs, torso, and back was reduced down to 0% to 3% after six hours with Rhuleave-K™ (p<0.001), improving relative pain scores by >95%. No significant pain relief was observed in the placebo group. Perceived pain relief occurred around 63 minutes with Rhuleave-K™. Complete pain relief with Rhuleave K in the head, neck, upper and lower limb, torso, and back occurred around 3.1 hours. [1] |
Curcumin |
||
159 participants (aged 19.5 to 35.5) with exercise-induced muscle damage and delayed-onset muscle soreness (DOMS). |
24 hours to 56 days; Systematic review and meta-analysis of randomised-controlled clinical trials.
150 mg/d – 6,000 mg/d curcumin featuring enhanced bioavailability delivery systems |
Pooled data analysis revealed that <180 mg/d of curcumin across 4 clinical trials achieved a near significant effect in reducing muscle soreness in adults (p<0.051). Further analysis found curcumin to effectively reduce muscle soreness in untrained individuals (p<0.001), in response to resistance exercise (p<0.001) after 72 and 96 hours (p<0.034; p<0.001).[16] |
Key: BD: twice daily; TDS: thrice daily
Safety Information
Disclaimer: In the interest of supporting Healthcare Practitioners, all safety information provided at the time of publishing is in accordance with Natural Medicine Database (NATMED PRO), renowned for its professional monographs which include a thorough assessment of safety, warnings, and adverse effects.
For further information on specific interactions with medications, please contact Clinical Support on 1800 777 648, or via email, anz_clinicalsupport@metagenics.com
Pregnancy and Lactation
- Insufficient reliable information available when used in medicinal amounts; avoid using.[29]
Contraindications
- None listed.[29]
References
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