Muran Peter J, Muran Sandra Y, Beseler Cheryl L, Cavalieri Ercole L, Rogan Eleanor G, Zahid Muhammad
1Longevity Healthcare Center, Newport Beach, CA.
2Department of Psychology, Colorado State University, Fort Collins, CO.
J Altern Complement Med. 2015 Jun;21(6):321-6. doi: 10.1089/acm.2014.0365. Epub 2015 May 14.
BACKGROUND/OBJECTIVE: A functional medicine approach to reduce breast cancer risk is preferable to early detection and treatment in maintaining breast health. Estrogens are implicated in breast cancer initiation through conversion to metabolites that react with DNA to form specific adducts associated with the development of breast cancer. The purpose of this study was to determine the ability of a defined clinical intervention, the AVERTi-Healthy Breast Program (AHBP), to reduce breast cancer risk conditions likely to develop into breast disease.
To obtain evidence that risk conditions in breast tissue can be reduced with a defined, multifaceted approach, this small clinical trial of 21 women measured indicators of breast health. A detailed clinical evaluation was conducted with all participants, including identification of physical symptoms, such as areas of tenderness upon palpation. Two laboratory assessments were conducted to determine the efficacy of the AHBP. First, 31 estrogen metabolites, estrogen conjugates, and depurinating estrogen-DNA adducts in urine samples taken before intervention were analyzed. The ratio of DNA adducts to metabolites and conjugates was calculated for each sample. Second, oxidative stress was analyzed by measuring the redox potential of glutathione and cysteine in blood plasma. All assessments were conducted before and after participation.
The estrogen adduct ratio and redox potential were improved after 90 days on the AHBP. A significant mean reduction of 3.31 (p=0.03) was observed in the adduct ratio, along with a significant improvement in the redox potential of 3.80 (p=0.05). The significant change in the adduct ratio occurred in women whose oxidative stress profile also improved.
These significant within-individual decreases suggest that the AHBP can reduce the risk for breast cancer in a relatively short time.
背景/目的:在维持乳房健康方面,采用功能医学方法降低乳腺癌风险比早期检测和治疗更为可取。雌激素通过转化为与DNA反应形成与乳腺癌发展相关的特定加合物的代谢产物,参与乳腺癌的发生。本研究的目的是确定一种明确的临床干预措施——AVERTi-健康乳房计划(AHBP)降低可能发展为乳腺疾病的乳腺癌风险状况的能力。
为了获得证据证明通过一种明确的多方面方法可以降低乳腺组织中的风险状况,这项针对21名女性的小型临床试验测量了乳房健康指标。对所有参与者进行了详细的临床评估,包括识别身体症状,如触诊时的压痛区域。进行了两项实验室评估以确定AHBP的疗效。首先,分析干预前采集的尿液样本中的31种雌激素代谢产物、雌激素结合物和脱嘌呤雌激素-DNA加合物。计算每个样本中DNA加合物与代谢产物和结合物的比率。其次,通过测量血浆中谷胱甘肽和半胱氨酸的氧化还原电位来分析氧化应激。所有评估均在参与前后进行。
在AHBP上进行90天后,雌激素加合物比率和氧化还原电位得到改善。加合物比率平均显著降低3.31(p = 0.03),氧化还原电位显著改善3.80(p = 0.05)。加合物比率的显著变化发生在氧化应激状况也得到改善的女性中。
这些个体内的显著下降表明AHBP可以在相对较短的时间内降低乳腺癌风险。