curcumin and dimethyl-sulfone

Osteoarthritis, the most common joint disease, is associated with substantial medical costs, lost productivity, and reduced quality of life. However, available pharmaceutical treatments have limitations in terms of efficacy and long-term safety.. In vitro evidence suggests that some natural products may possess anti-inflammatory and anti-oxidative properties and may inhibit the release of key osteoarthritis-related cytokines. There is, therefore, ongoing interest in identifying natural products that safely promote joint health and treat osteoarthritis. Numerous plant extracts, including curcumin, Boswellia extract, and pycnogenol, have shown effect sizes (ES) for reducing pain and functional disability larger than those observed with analgesics and products such as glucosamine and chondroitin. The ES for methylsulfonylmethane and avocado/soybean unsaponifiables are also considered to be clinically relevant. Data from a small number of studies using natural products for treating osteoarthritis are promising but require confirmation in further well-designed clinical trials.

Topics: Anti-Inflammatory Agents, Non-Steroidal; Biological Products; Boswellia; Chondroitin; Curcumin; Dietary Supplements; Dimethyl Sulfoxide; Flavonoids; Glucosamine; Humans; Osteoarthritis; Pain Management; Phytotherapy; Plant Extracts; Salix; Sulfones

A large number of dietary supplements are promoted to patients with osteoarthritis and as many as one third of those patients have used a supplement to treat their condition. Glucosamine-containing supplements are among the most commonly used products for osteoarthritis. Although the evidence is not entirely consistent, most research suggests that glucosamine sulfate can improve symptoms of pain related to osteoarthritis, as well as slow disease progression in patients with osteoarthritis of the knee. Chondroitin sulfate also appears to reduce osteoarthritis symptoms and is often combined with glucosamine, but there is no reliable evidence that the combination is more effective than either agent alone. S-adenosylmethionine may reduce pain but high costs and product quality issues limit its use. Several other supplements are promoted for treating osteoarthritis, such as methylsulfonylmethane, Harpagophytum procumbens (devil's claw), Curcuma longa (turmeric), and Zingiber officinale (ginger), but there is insufficient reliable evidence regarding long-term safety or effectiveness.

Topics: Anti-Inflammatory Agents; Chondroitin Sulfates; Curcuma; Dietary Supplements; Dimethyl Sulfoxide; Glucosamine; Harpagophytum; Humans; Osteoarthritis; Phytotherapy; Plant Preparations; S-Adenosylmethionine; Sulfones; Treatment Outcome; Zingiber officinale

The RADIANT study aimed to investigate the efficacy and safety of a complementary medicine supplement combination in people with hand osteoarthritis (HOA).. This was an internet-based, double-blind, randomised, placebo-controlled trial. Participants aged over 40 years with symptomatic HOA with radiographic confirmation (Kellgren Lawrence grade ≥ 2) throughout Australia were recruited and randomly assigned (1:1) to receive either a supplement combination composed of Boswellia serrata extract 250 mg/day, pine bark extract 100 mg/day, methylsulfonylmethane 1,500 mg/day and curcumin 168 mg/day or placebo for 12 weeks. The primary outcome was change in hand pain assessed using a visual analogue scale (VAS 0-100) from baseline to week 12. A range of secondary outcomes and additional measures were recorded. Adverse events were monitored weekly.. One hundred and six participants were included with mean age 65.6 years and 81% were women. 45% of the participants were graded as KLG 4, 40% KLG three and 39 (37%) had erosive OA. There was no significant difference in pain VAS reduction between groups. The adjusted between group difference in means (95%CI) was 5.34 (-2.39 to 13.07). Five participants (10%) in the supplement combination group discontinued study treatment due to AE vs four participants (7%) in the placebo group.. There were no significant differences in symptomatic relief between the two groups over 12 weeks. These findings do not support the use of the supplement combination for treating hand pain in people with HOA.. Prospectively registered (Australian New Zealand Clinical Trials Registry ACTRN12619000835145, 31/05/2019).

Topics: Aged; Anti-Inflammatory Agents; Boswellia; Curcumin; Dimethyl Sulfoxide; Double-Blind Method; Drug Therapy, Combination; Female; Hand; Humans; Male; Osteoarthritis; Pinus; Plant Bark; Plant Extracts; Sulfones; Visual Analog Scale

Dietary supplements are increasingly used by people with osteoarthritis. Boswellia serrata extract, curcumin, pine bark extract and methylsulfonylmethane have been identified as having the largest effects for symptomatic relief in a systematic review. It is important to understand whether any pharmacokinetic interactions are among the major constituents of these supplements so as to provide information when considering the combination use of these supplements. The aim of this study was to investigate the pharmacokinetics of the constituents alone and in combination.. This study was a randomized, open-label, single-dose, four-treatment, four-period, crossover study with 1-week washout. The pharmacokinetics of the constituents of these supplements when dosed in combination with methylsulfonylmethane were compared to being administered alone. Plasma samples were obtained over 24 h from 16 healthy participants. Eight major constituents were analysed using a validated ultra-high-performance liquid chromatography-tandem mass spectrometry assay.. The pharmacokinetics of each constituent was characterized, and there were no significant differences in the pharmacokinetic profiles of the constituents when administered as a combination, relative to the constituents when administered alone (P > 0.05).. These data suggest that interactions between the major constituents of this supplement combination are unlikely and therefore could be investigated to manage patients with osteoarthritis without significant concerns for possible pharmacokinetic interactions.

Topics: Administration, Oral; Adult; Boswellia; Chromatography, High Pressure Liquid; Cross-Over Studies; Curcumin; Dietary Supplements; Dimethyl Sulfoxide; Drug Combinations; Female; Healthy Volunteers; Humans; Male; New South Wales; Pinus; Plant Bark; Plant Extracts; Sulfones; Tandem Mass Spectrometry; Young Adult

Hand osteoarthritis (HOA) is a highly prevalent disabling joint disease. The current management regimens are limited. Potentially as a consequence, many people turn to complementary and alternative medicines for symptomatic relief. A combination of two or more supplements is common in clinical practice; however, evidence for the efficacy of this approach is lacking. The aim of this study is to investigate the efficacy of a supplement combination for treating symptomatic HOA in comparison to placebo.. The RADIANT study is an internet-based, parallel, superiority, double-blind, placebo-controlled, randomised, two-arm clinical trial. A participatory design is used to facilitate the study procedures. One hundred and six participants aged over 40 years with painful HOA and structural change on X-ray (Kellgren and Lawrence grade (KLG) ≥2) will be recruited from the community and randomly allocated to receive either a supplement combination composed of: (1) combined supplement containing. This protocol has been approved by the University of Sydney Human Research Ethics Committee (HREC No. 2018/766). Dissemination will occur through conferences, social media, scientific publications and PhD thesis.. Australian New Zealand Clinical Trials Registry (ACTRN12619000835145); Pre-results.

Topics: Australia; Curcumin; Dimethyl Sulfoxide; Double-Blind Method; Hand; Humans; Internet; Osteoarthritis; Pain Management; Plant Preparations; Quality of Life; Randomized Controlled Trials as Topic; Sulfones; Treatment Outcome

The cuff tendon that is most prone to full-thickness rotator cuff tears is the supraspinatus (SSP). Arthroscopic SSP repair ensures good to satisfactory mid- to long-term clinical outcomes. However, the intense postoperative pain reduces rehabilitation compliance and is cause of patient dissatisfaction. Many natural compounds act by inhibiting inflammatory pathways in a similar way to anti-inflammatory drugs. This was a prospective randomized trial designed to assess the analgesic effect of a dietary supplement (DS) containing Boswellia serrata and Curcuma longa in a population of subjects with full-thickness SSP tendon tear treated by arthroscopy. Three weeks before surgery, patients were randomized to receive Tendisulfur(®) (group T) or a placebo (group P) for 2 months. The primary outcome measure was subjective VAS pain. Secondary outcomes measures were Constant-Murley score simple shoulder test, and patient global assessment (PGA) scores. Patients were assessed immediately at baseline and subsequently at 1, 2, 4, 6, 8, 12, and 24 weeks.. Stratification of pain scores and subscores demonstrated significantly lower overall pain scores in group T versus group P at 1 week (p = 0.0477), and lower but not significantly different scores on week 2 (p = 0.0988); at subsequent time points, differences were not significant (p > 0.05). PGA scores were good in all subjects.. In conclusion, this study provides objective data on the effect of a DS containing natural substances, added to standard analgesics, on postoperative RC pain. DS alleviated short and partially mid-term pain, while long-term pain was unchanged. This limitation can probably be addressed by a dosage increase over the first 4 weeks and by extending treatment by 1 or 2 months.

Topics: Anti-Inflammatory Agents, Non-Steroidal; Arginine; Arthroscopy; Boswellia; Collagen Type I; Collagen Type II; Curcuma; Dietary Supplements; Dimethyl Sulfoxide; Drug Combinations; Female; Glycosaminoglycans; Humans; Lysine; Male; Middle Aged; Pain Measurement; Pain, Postoperative; Phytotherapy; Plant Extracts; Preoperative Care; Prospective Studies; Rotator Cuff Injuries; Rupture; Sulfones

Endurance running places substantial physiological strain on the body, which can develop into chronic inflammation and overuse injuries, negatively affecting subsequent training and performance. A recent study found that dietary polyphenols and methlysulfonylmethane (MSM) can reduce systemic inflammation and oxidative stress without adverse side effects.. The purpose was to identify a set of candidate protein and RNA biomarkers that are associated with improved outcomes related to inflammation and muscle injury, when athletes used 3 proprietary supplements both prior to and during early recovery from a half-marathon race.. The study was an open-label pilot study.. The study was field based, with sample analysis conducted in the Applied Physiology Laboratory in the Department of Kinesiology, Health Promotion and Recreation at the University of North Texas in Denton, Texas.. Participants were 15 young, exercise-trained men and women.. The intervention group consumed 1000 mg/d of a proprietary 50-50 mix of optimized curcumin and pomegranate extract for 26 days. The group also consumed 500 mg/d of a proprietary MSM for the same period. Three days prior to and one day after a race, the daily dosage was doubled. The control group received no supplements.. Venous blood samples were collected at pre-race and at 4h and 24h after running a half-marathon race. The research team evaluated results for target proteins that have been associated with inflammation and muscle injury in the scientific literature. The team also performed an analysis of RNA biomarkers.. At the 4h and 24h time points, a significant treatment-response was observed that included increases in proteins: (1) osteonectin/SPARC-osteonectin/secreted protein acidic and rich in cysteine and (2) BDNF-brain-derived neurotrophic factor. At the same points, the study also found increased RNA: (1) PACER-P50-associated COX-2 extragenic RNA, (2) PTGES-prostaglandin E synthase, (3) MYD88-innate immune signal transduction adaptor MYD88, (4) TNFS14-tumor necrosis factor (TNF) superfamily member 14, (5) THRIL-TNF and heterogeneous nuclear ribonucleoprotein L (HNRNPL)-related immunoregulatory long noncoding RNA, (6) TRAF6-TNF receptor associated factor 6, (7) CX3CL1-C-X3-C motif chemokine ligand 1, (8) MALAT1-metastasis-associated lung adenocarcinoma transcript 1, and (9) LINC00305-long intergenic nonprotein coding RNA 305.. The combination of polyphenol and MSM supplementation resulted in a systemic response that may translate to an accelerated rate of muscle recovery, allowing participants return to exercise and normal activities more quickly. This pilot study is the foundation for a larger investigation in the research team's laboratory.

Topics: Biomarkers; Curcumin; Dietary Supplements; Dimethyl Sulfoxide; Female; Homosexuality, Male; Humans; Inflammation; Male; Marathon Running; Myeloid Differentiation Factor 88; Osteonectin; Pilot Projects; Plant Extracts; Polyphenols; Pomegranate; RNA; Sexual and Gender Minorities; Sulfones; Systemic Inflammatory Response Syndrome