Insights & Discussion
Tart cherry juice potentially helps alleviate symptoms of mild to moderate knee osteoarthritis and decreases the levels of high sensitivity C-reactive protein.
The study involved 58 non-diabetic participants with grade 2-3 osteoarthritis as categorized by Kellgren. Participants were randomly assigned to consume two 8-ounce bottles of either tart cherry juice or a placebo daily for six weeks. There was a one-week washout period before participants switched to the alternate treatment in a crossover design. The research measured participants' Western Ontario McMaster Osteoarthritis Index scores and walking times before and after each treatment. Levels of plasma urate, creatinine, and high sensitivity C-reactive protein were also noted at baseline and after each treatment. Acetaminophen was permitted as a rescue drug with self-reporting after each treatment period.
There was a noticeable reduction in Western Ontario McMaster Osteoarthritis Index scores following the cherry juice treatment, an effect not observed with the placebo. High sensitivity C-reactive protein also showed a decrease during the cherry juice treatment. The reduction in high sensitivity C-reactive protein was consistent with the improvement observed in osteoarthritis index scores. However, consumption of tart cherry juice didn't significantly affect walking time, usage of acetaminophen, or plasma urate and creatinine levels.
Tart cherry juice shows promise in easing knee osteoarthritis symptoms.
This study included 58 patients with knee osteoarthritis (OA) who were given either cherry juice or a placebo. While both groups showed some improvement in WOMAC scores, the cherry juice group experienced a 15% improvement, compared to 6% in the placebo group. However, this difference wasn't statistically significant. The cherry juice group also saw a 23% reduction in hsCRP (an inflammation marker), whereas the placebo group had a 51% increase. This suggests an anti-inflammatory effect of cherry juice. The study notes some limitations, including small sample size and the need for further research. Overall, cherry juice may offer benefits for OA patients.
Discover Related Insights
Almond consumption can significantly reduce the serum concentration of the inflammatory mediator, Interleukin-6, in adults but no significant effect is found on C-reactive protein.
2023 Complementary Therapies in Medicine A systematic review and meta-analysis of almond effect on C-reactive protein and interleukin-6 in adults Hariri M, Amirkalali B, Baradaran HR, Gholami A
Systematic Review Almond CRP IL-6
The methodology of this study involved running an electronic search for English-language studies across several databases such as Web of Science, PubMed, SCOPUS, ClinicalTrials.gov, and Cochrane library without any time restrictions. The effect sizes on serum concentration of C-reactive protein (CRP) and Interleukin-6 (IL-6) were calculated based on the mean changes of both intervention and control groups. Assessment of the overall effects and their heterogeneity was done using the DerSimonian and Laird random-effects model. To examine the statistical heterogeneity, Cochran's Q test and I-squared statistic were utilized.
With respect to the results, among the eleven studies involved, it was observed that almond consumption did not significantly affect serum CRP level. However, a significant decrease in serum IL-6 level was reported with almond consumption. Thus, reflecting the beneficial effects of almonds with regard to reducing the serum concentration of IL-6. The results derived for serum CRP were not substantial enough to be considered significant.
Walnut consumption coupled with concurrent training improves lipid profile, steroid hormone levels, and systematic inflammation in elderly men.
2021 Biology of Sport Moderate walnut consumption improved lipid profile, steroid hormones and inflammation in trained elderly men: a pilot study with a randomized controlled trial Kamoun A, Hammouda O, Turki M, Maaloul R, Chtourou M, Bouaziz M, et al.
Randomised Controlled Trial Cholesterol Cortisol CRP
The study created two matched groups of fit elderly men and placed one on a diet inclusive of walnuts (15g/day for six weeks) alongside their concurrent (resistance and endurance) training. The other group did the concurrent training without the walnut-supplemented diet. The study then took fasting blood samples from the participants 48 hours before and after the intervention for biochemical assessments.
The group consuming walnuts saw a significant improvement in their lipid profiles with increased high-density lipoprotein levels and decreased total cholesterol, low-density lipoprotein and triglyceride levels. The walnut-eating participants also saw an increase in testosterone levels after the training, which was significantly higher than the group not consuming walnuts. Additionally, the walnut-consuming group experienced lowered cortisol levels and decreased C-reactive protein compared to the group not consuming walnuts. It is plausible the results could be attributed to the presence of polyunsaturated fatty acids in walnuts.
Coffee intake may have a variable effect on inflammation markers, with different responses noted between men and women and across various geographical regions.
2020 Nutrients Coffee Consumption and C-Reactive Protein Levels: A Systematic Review and Meta-Analysis Moua ED, Hu C, Day N, Hord NG, Takata Y
Systematic Review CRP
The researchers carried out a systematic review and dose-response meta-analysis on the relationship between coffee intake and C-reactive protein (CRP) levels, an inflammation biomarker. They studied eleven previous studies involving a total of 61,047 participants from three different continents. These studies were chosen using the PubMed database. The selected studies had different findings: some showed a negative relationship between coffee and CRP levels, others showed a positive relationship while some showed no significant associations. The researchers analyzed the data from these studies using mixed-effects meta-regression models, with the volume of coffee consumed as the metric.
Regarding the discussion of results, there revealed to be considerable variation between the individual studies included in the meta-analysis. In three of the largest studies, it was found that the relationship between coffee consumption and CRP levels appeared to be different depending on the gender of the participant and their location. Women from Europe and the United States, as well as Japanese men, showed a decrease in CRP levels with increased coffee consumption. However, European men showed an increased inflammation marker. When all studies were considered together, no significant relationship between coffee consumption and CRP levels was found among all participants or when the data was stratified by gender or geographical location, showing the contradictory nature of the results noted in individual studies.
According to high-quality outcomes, acupuncture had more total effective rate, short-term effective rate, and less adverse reactions than western medicine in treating knee osteoarthritis.
2019 Medicine The effectiveness and safety of acupuncture for knee osteoarthritis Li J, Li YX, Luo LJ, Ye J, Zhong DL, Xiao QW, et al.
Systematic Review Knee Osteoarthritis
Firstly, this overview provides the latest evidence on acupuncture for knee osteoarthritis based on the findings of systematic reviews, which indicated that acupuncture may have more total effective rate, short-term effective rate, and less adverse reactions in treating knee osteoarthritis than western medicine. Secondly, this overview is predesigned, which helps restrict the likelihood of biased decisions in reviewing. Thirdly, comprehensive search strategies were conducted for a wide range of data. Fourthly, independent reviewers were engaged in searching, screening, and assessing the potential studies and there was a high consistency among the reviewers.
Tart cherry juice may lessen inflammation, thus reducing pain in women with osteoarthritis, according to changes noted in specific inflammatory serum biomarkers.
2012 Journal of Food Studies Efficacy of Tart Cherry Juice to Reduce Inflammation Biomarkers among Women with Inflammatory Osteoarthritis (OA) Kuehl KS, Elliot DL, Sleigh AE, Smith JL
Randomised Controlled Trial CRP Osteoarthritis
This study used a randomized, double blind, placebo-controlled trial design, involving twenty women with inflammatory osteoarthritis, aged between 40 to 70 years. The participants were given 10.5 ounce bottles of tart cherry juice or a placebo cherry drink to consume twice daily for a span of 21 consecutive days. Pain was assessed at the start and the end of the intervention period. At these same junctures, blood samples were collected to monitor the influence of the juice on serum biomarkers of inflammation: C-Reactive Protein, Interleukin-6, Interleukin-10, and Tumor Necrosis Factor-alpha.
The results depicted that the group consuming tart cherry juice experienced a significant reduction in the serum biomarker, C-Reactive Protein, an indication of lowered inflammation. This is suggestive that tart cherry juice could be an efficient way of reducing inflammation, and subsequently, the pain experienced by women suffering from osteoarthritis.
Sign In
Users not signed in are limited to viewing the 5 most recent items of content.