Trial reportTranslational research : the journal of laboratory and clinical medicine2013
Antioxidant supplementation reduces endometriosis-related pelvic pain in humans.
Trial report in Translational research : the journal of laboratory and clinical medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 8 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
81 citing papers in PubMed, 8 syntheses or guidelines pooled it, 171 citations in OpenAlex.
- Therapeutic Effects of Vitamins in Endometriosis Patients: A Systematic Review of Randomized Controlled Trials.International journal of molecular sciences · 2026Pooled it
- Clinical and endocrine effects of pharmacological therapy in endometriosis: a systematic review and meta-analysis.Frontiers in endocrinology · 2026Pooled it
- Efficacy of antioxidant supplementation in alleviating endometriosis-related pain: insights from a systematic review and meta-analysis of RCTs.Reproductive biology and endocrinology : RB&E · 2025Pooled it
- The effects of antioxidant supplementation on pain, oxidative stress markers, and clinical pregnancy rate in women with endometriosis: a systematic review and meta-analysis of randomized controlled trials.Frontiers in medicine · 2025Pooled it
- Pooled it
- Antioxidant vitamins supplementation reduce endometriosis related pelvic pain in humans: a systematic review and meta-analysis.Reproductive biology and endocrinology : RB&E · 2023Pooled it
- Nutritional aspects in chronic non-cancer pain: A systematic review.Frontiers in nutrition · 2022Pooled it
- Dietary supplements for dysmenorrhoea.The Cochrane database of systematic reviews · 2016Pooled it
- Efficacy of Organic Selenium Supplementation on Endometrioma Regression and Pain in Women With Endometriosis: A Triple-Blind Randomized Controlled Clinical Trial.Biological trace element research · 2026Trial
- The Effect of Combined Vitamin C and Vitamin E Supplementation on Oxidative Stress Markers in Women with Endometriosis: A Randomized, Triple-Blind Placebo-Controlled Clinical Trial.Pain research & management · 2021Trial
- Effects of vitamin C on the outcome of in vitro fertilization-embryo transfer in endometriosis: A randomized controlled study.The Journal of international medical research · 2018Trial
- Review
- The Role of Dietary Supplements in the Treatment of Endometriosis: A Critical Review.Nutrients · 2026Review
- Commemorating Dr. Sampath (Sam) Parthasarathy for his Exceptional Research in Biochemistry and Lipidology in Health and Diseaseand Legacy as a Superb Mentor and Scientist.Cell biochemistry and biophysics · 2026Article
- Review
- Review
- Nutrition and Endometriosis: Current Evidence on Dietary Risk Factors and Clinical Impact - A Narrative Review.Journal of inflammation research · 2026Review
- Understanding Endometriosis: A Broad Review of Its Causes, Management, and Impact.International journal of molecular sciences · 2025Review
- Effectiveness of Medical Nutrition Therapy in the Management of Patients with Obesity and Endometriosis: from the Mediterranean Diet To the Ketogenic Diet, Through Supplementation. The Role of the Nutritionist in Clinical Management.Current obesity reports · 2025Review
- Expression of Free Radicals and Reactive Oxygen Species in Endometriosis: Current Knowledge and Its Implications.Antioxidants (Basel, Switzerland) · 2025Review
21 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 4 institutions in 1 country.
Funding
Abstract
We previously suggested that women with endometriosis have increased oxidative stress in the peritoneal cavity. To assess whether antioxidant supplementation would ameliorate endometriosis-associated symptoms, we performed a randomized, placebo-controlled trial of antioxidant vitamins (vitamins E and C) in women with pelvic pain and endometriosis. Fifty-nine women, ages 19 to 41 years, with pelvic pain and history of endometriosis or infertility were recruited for this study. Patients were randomly assigned to 2 groups: vitamin E (1200 IU) and vitamin C (1000 mg) combination or placebo daily for 8 weeks before surgery. Pain scales were administered at baseline and biweekly. Inflammatory markers were measured in the peritoneal fluid obtained from both groups of patients at the end of therapy. Our results indicated that after treatment with antioxidants, chronic pain ("everyday pain") improved in 43% of patients in the antioxidant treatment group (P = 0.0055) compared with the placebo group. In the same group, dysmenorrhea ("pain associated with menstruation") and dyspareunia ("pain with sex") decreased in 37% and 24% patients, respectively. In the placebo group, dysmenorrhea-associated pain decreased in 4 patients and no change was seen in chronic pain or dyspareunia. There was a significant decrease in peritoneal fluid inflammatory markers, regulated upon activation, normal T-cell expressed and secreted (P ≤ 0.002), interleukin-6 (P ≤ 0.056), and monocyte chemotactic protein-1 (P ≤ 0.016) after antioxidant therapy compared with patients not taking antioxidants. The results of this clinical trial show that administration of antioxidants reduces chronic pelvic pain in women with endometriosis and inflammatory markers in the peritoneal fluid.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.