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gesterone receptor positivity was defined as both 1 Constructive tumor cells with nuclear staining.ec.nNOS Storage & Stability Bioscientifica doi.org/10.1530/EC-21-0226 2021 The authors Published by Bioscientifica LtdResultsBaseline qualities of individuals We analyzed 131 individuals, including 84 diagnosed with invasive breast cancer and 47 diagnosed with breast fibroadenoma. The baseline characteristics of all individuals are presented in Table 1, displaying the association among the two groups in clinicopathological parameters. There were no significant differences αvβ6 Storage & Stability between both groups in menstrual status and history of previous illnesses (household history of breast cancer, history of smoking, or historyThis work is licensed below a Inventive Commons Attribution-NonCommercial four.0 International License.X Li, L Fang et al.Urinary ES and breast cancer risk in China10:Table 1Baseline characteristics.Characteristic Cases Quantity 84 Controls Number 47 Pof alcohol consumption). We located that individuals with improved age (P = 0.005) or BMI (P = 0.003) were extra most likely to have breast cancer.Age (years) 55 55 BMI (kg/m2) 25 25 Menopause No Yes HR status Constructive Negative Molecular subtype Luminal A BC Luminal B BC HER2-enriched TNBC Family members history of breast cancer No Yes History of smoking No Yes History of alcohol consumption No Yes52 32 48 36 39 45 66 18 17 49 10 8 78 six 76 eight 7756.5 82.1 55.two 81.eight 61.9 66.40 7 39 8 2443.five 17.9 44.8 18.two 38.1 33.0.005 0.003 0.Estrogen metabolism in breast cancer and fibroadenoma patients As a result of the decrease in the levels of estrogen metabolites following menopause, situations were divided into premenopausal and postmenopausal groups for further evaluation. The urinary concentrations of estradiol and estrone (parent estrogens) and their estrogen metabolites had been compared in pre- or postmenopausal individuals with breast cancer and breast fibroadenoma, respectively, and are presented in Tables two and three. In postmenopausal sufferers (Table 3), the urinary levels of 2-OHE1 (P = 0.029), 2-OHE2 (P = 0.006), 4-OHE2 (P 0.001), 4-methoxyestrone (4-MeOE1) (P 0.001), and 16-OHE1 (P 0.001) in patients with breast cancer had been remarkably reduced compared with breast fibroadenoma counterparts. In premenopausal sufferers (Table 2), there was a important difference inside the urinary degree of 2-OHE2 (P = 0.022) among the two groups. In the logistic regression analysis (Fig. 1), we located that 4-OHE2 and 4-MeOE1 had been independent predictors for breast cancer danger. Individuals with 0.085 ng/mg urinary 4-OHE2 and 0.115 ng/mg urinary 4-MetOE1 had a 9.9 and 8.5 reduced risk of developing breast cancer, respectively, compared with their counterparts. ROC evaluation revealed that the levels of urinary 2-OHE1, 2-OHE2, 4-OHE2, 4-MetOE1, and 16-OHE1 in postmenopausal patients (Fig. two) had predictive value for breast cancer, using the optimal cutoffs of 0.425, 0.415, 0.085, 0.115, and 0.345, respectively.1.000 63.9 66.7 63.9 66.7 64.2 63.6 44 three 43 4 43 four 36.1 33.three 36.1 33.3 35.8 36.1.000 1.Circumstances, invasive breast cancer; Controls, breast fibroadenoma; HR, hormone receptor; Luminal A BC, hormone receptor good (ER and/or PR good), HER2 damaging, and Ki-67 low; Luminal B BC, hormone receptor constructive (ER and/or PR good), and either HER2 good or HER2 negative with higher levels of Ki-67; HER2-enriched, hormone receptor unfavorable (ER and PR adverse) and HER2 positive; TNBC, triple-negative breast cancer. Bold indicates statistical significance, P 0.05.Table 2Estrogen metabolism in p

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