A standardized combination of Terminalia chebula and Withania somnifera extracts enhances immune function in adults: a pilot randomized, double-blind, placebo-controlled clinical study

IF 3.5 4区 医学 Q2 FOOD SCIENCE & TECHNOLOGY Food & Nutrition Research Pub Date : 2024-05-30 DOI:10.29219/fnr.v68.10297
Durga Prasad Sadhupati, Rambhakta Lakshmisudha, Karthik Naidu Karjala Chakravarthy, Partha Sarathy Naidana
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Dunal roots are important medicinal herbs described in Ayurveda and traditional therapy for diverse health benefits.</p> <p style=\"color: #000000; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"><strong><em>Objective:</em></strong>&nbsp;This pilot study aimed to evaluate the immune function-enhancing potential of a unique blend of&nbsp;<em>T. chebula</em>&nbsp;fruit and&nbsp;<em>W. somnifera</em>&nbsp;root extracts, LN20189, in healthy men and women.</p> <p style=\"color: #000000; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"><strong><em>Methods:</em></strong>&nbsp;Forty healthy volunteers (age: 35–60 years) were randomized into two groups receiving either LN20189 (500 mg per day) or a matched placebo over 28 consecutive days. The total T-cell population was the primary efficacy measure in this study. The secondary efficacy measures included counts of CD4, CD8, natural killer (NK) cells, serum levels of interleukin-2 (IL-2), interferon-gamma (IFN-γ), total immunoglobulin-G (IgG), and Immune Function Questionnaire (IFQ) scores. Safety parameter assessments were also conducted.</p> <p style=\"color: #000000; font-family: 'Times New Roman'; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"><strong><em>Results:</em></strong>&nbsp;Post-trial, in LN20189-supplemented subjects, T cells, CD4, NK cells count, and the CD4:CD8 ratio were increased by 9.32, 10.10, 19.91, and 17.43%, respectively, as compared to baseline. LN20189 supplementation increased serum IFN-γ and IgG levels by 14.57 and 27.09% from baseline and by 13.98 and 21.99%, compared to placebo, respectively. Also, the IFQ scores in the LN20189 group were 84.68% (vs. baseline) and 69.44% (vs. placebo) lower at the end of the trial. 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Abstract

Background: The use of botanical medicine has been demonstrated as a potential strategy to manage or treat a variety of health issues. Terminalia chebula (Retz) fruit and Withania somnifera (L.) Dunal roots are important medicinal herbs described in Ayurveda and traditional therapy for diverse health benefits.

Objective: This pilot study aimed to evaluate the immune function-enhancing potential of a unique blend of T. chebula fruit and W. somnifera root extracts, LN20189, in healthy men and women.

Methods: Forty healthy volunteers (age: 35–60 years) were randomized into two groups receiving either LN20189 (500 mg per day) or a matched placebo over 28 consecutive days. The total T-cell population was the primary efficacy measure in this study. The secondary efficacy measures included counts of CD4, CD8, natural killer (NK) cells, serum levels of interleukin-2 (IL-2), interferon-gamma (IFN-γ), total immunoglobulin-G (IgG), and Immune Function Questionnaire (IFQ) scores. Safety parameter assessments were also conducted.

Results: Post-trial, in LN20189-supplemented subjects, T cells, CD4, NK cells count, and the CD4:CD8 ratio were increased by 9.32, 10.10, 19.91, and 17.43%, respectively, as compared to baseline. LN20189 supplementation increased serum IFN-γ and IgG levels by 14.57 and 27.09% from baseline and by 13.98 and 21.99%, compared to placebo, respectively. Also, the IFQ scores in the LN20189 group were 84.68% (vs. baseline) and 69.44% (vs. placebo) lower at the end of the trial. LN20189 improved the study volunteers’ cellular and humoral immune functions.

Conclusion: In summary, LN20189 supplementation was found tolerable and improved the key cellular and humoral factors of the immune system and helped improve immune function of the trial volunteers.

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增强成人免疫功能的茜草和睡莲提取物标准化组合:一项随机、双盲、安慰剂对照临床试验研究
背景: 植物药的使用已被证明是管理或治疗各种健康问题的一种潜在策略。 Terminalia chebula (Retz)果实和 Withania somnifera (L.)Dunal根是阿育吠陀和传统疗法中描述的重要药材,具有多种健康益处。目的: 本试验性研究旨在评估一种独特的布拉果和睡莲根提取物混合物 LN20189 在健康男性和女性中增强免疫功能的潜力。方法: 40 名健康志愿者(年龄:35-60 岁)被随机分为两组,连续 28 天接受 LN20189(每天 500 毫克)或匹配的安慰剂。T细胞总数是本研究的主要疗效指标。次要疗效指标包括 CD4、CD8、自然杀伤(NK)细胞计数,血清白细胞介素-2(IL-2)、γ 干扰素(IFN-γ)、总免疫球蛋白-G(IgG)水平,以及免疫功能问卷(IFQ)评分。此外,还进行了安全性参数评估。结果: 试验后,与基线相比,补充 LN20189 的受试者的 T 细胞、CD4、NK 细胞计数和 CD4:CD8 比率分别增加了 9.32%、10.10%、19.91% 和 17.43%。与安慰剂相比,补充 LN20189 可使血清 IFN-γ 和 IgG 水平分别比基线提高 14.57% 和 27.09%,以及提高 13.98% 和 21.99%。此外,试验结束时,LN20189 组的 IFQ 评分分别比基线值低 84.68%(与安慰剂相比)和 69.44%(与安慰剂相比)。LN20189改善了研究志愿者的细胞和体液免疫功能。结论: 总之,补充 LN20189 可以耐受,并能改善免疫系统的关键细胞和体液因素,有助于提高试验志愿者的免疫功能。
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来源期刊
Food & Nutrition Research
Food & Nutrition Research FOOD SCIENCE & TECHNOLOGY-NUTRITION & DIETETICS
CiteScore
5.20
自引率
9.10%
发文量
47
审稿时长
14 weeks
期刊介绍: Food & Nutrition Research is a peer-reviewed journal that presents the latest scientific research in various fields focusing on human nutrition. The journal publishes both quantitative and qualitative research papers. Through an Open Access publishing model, Food & Nutrition Research opens an important forum for researchers from academic and private arenas to exchange the latest results from research on human nutrition in a broad sense, both original papers and reviews, including: * Associations and effects of foods and nutrients on health * Dietary patterns and health * Molecular nutrition * Health claims on foods * Nutrition and cognitive functions * Nutritional effects of food composition and processing * Nutrition in developing countries * Animal and in vitro models with clear relevance for human nutrition * Nutrition and the Environment * Food and Nutrition Education * Nutrition and Economics Research papers on food chemistry (focus on chemical composition and analysis of foods) are generally not considered eligible, unless the results have a clear impact on human nutrition. The journal focuses on the different aspects of nutrition for people involved in nutrition research such as Dentists, Dieticians, Medical doctors, Nutritionists, Teachers, Journalists and Manufacturers in the food and pharmaceutical industries.
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