scholarly journals Intact and total insulin-like growth factor-binding protein-3 (IGFBP-3) levels in relation to breast cancer risk factors: a cross-sectional study

2008 ◽  
Vol 10 (3) ◽  
Author(s):  
Caroline Diorio ◽  
Jacques Brisson ◽  
Sylvie Bérubé ◽  
Michael Pollak
2007 ◽  
Vol 156 (2) ◽  
pp. 187-194 ◽  
Author(s):  
Kalliopi Pazaitou-Panayiotou ◽  
Theodore Kelesidis ◽  
Iosif Kelesidis ◽  
Athina Kaprara ◽  
Jennifer Blakeman ◽  
...  

Objective: Several components of the GH and IGF systems have been implicated in the development of malignancies. All components of these hormonal systems have never been jointly evaluated in female breast cancer, and previous studies have not examined the role of IGF-binding proteins (IGFBP-4, IGFBP-6) or GH-binding protein (GHBP). Design: Hospital-based case–control study. Methods: In this sample of primarily postmenopausal women, we obtained serum measures of IGF-I, IGF-II, and binding proteins IGFBP-1, IGFBP-3, IGFBP-4, IGFBP-6, as well as GHBP, insulin, and leptin from 74 breast cancer cases and 76 control subjects. Results: In crude analyses, we found lower age-standardized mean IGF-I, IGFBP-3, IGFBP-4, IGFBP-6, and higher IGFBP-1 and GHBP in breast cancer cases when compared with controls. Multivariate models mutually adjusted for other GH–IGF system components and classical breast cancer risk factors demonstrated an inverse association between IGFBP-3 and risk of breast cancer (odds ratio (OR) = 0.2, P < 0.01) and a direct association between GHBP and disease risk (OR = 3.3, P < 0.01). No significant associations were detected in multivariate analyses among IGF-I, IGF-II or IGFBP-1, IGFBP-4, IGFBP-6 with risk of breast cancer, indicating that these factors may not have effects independent of and/or comparable with IGFBP-3 and GHBP. Conclusions: These results support a protective role of IGFBP-3 and demonstrate for the first time an increased risk of breast cancer with higher GHBP, after accounting for variation in IGFs, IGFBPs, and classical breast cancer risk factors.


2020 ◽  
Author(s):  
Jennifer D Brooks ◽  
Rebecca A G Christensen ◽  
Janice S Sung ◽  
Malcolm C Pike ◽  
Irene Orlow ◽  
...  

Abstract Background: Histologically normal breast fibroglandular tissue (FGT) enhances on contrast MRI and is called background parenchymal enhancement (BPE). Having high BPE is associated with an increased risk of breast cancer. We examined the relationship between MRI-FGT (a volumetric assessment of breast density) and BPE and breast cancer risk factors.Methods: This was a cross-sectional study of 419 women without breast cancer undergoing contrast-enhanced breast MRI. All women completed a questionnaire at the time of MRI. Prevalence ratios (PR) and 95% confidence intervals (CI) describing the relationship between breast cancer risk factors and BPE and MRI-FGT were generated using modified Poisson regression. Results: In multivariable adjusted models a positive association between BMI and BPE was observed, with a 5-unit increase in BMI associated with a 16% and 38% increase in prevalence of high BPE in pre- and post-menopausal women respectively. Conversely, a strong inverse relationship between BMI and MRI-FGT was observed in both pre- (PR=0.65, 95% CI 0.57, 0.76 per 5-unit increase of BMI) and post-menopausal (PR=0.67, 95% CI 0.57, 0.79, per 5-unit increase in BMI) women. Current use of oral contraceptives was associated with high BPE while use of preventive medication (e.g., tamoxifen) was associated with low BPE. Conclusion: This study identifies patient characteristics and exposures associated with BPE and MRI-FGT. BPE is a new imaging marker of breast cancer risk. The results of this study provide further support for the role of hormonal exposures on BPE.


PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257271
Author(s):  
Nur E. Alam ◽  
Md. Shariful Islam ◽  
Hedayet Ullah ◽  
Md. Tarek Molla ◽  
Siratul Kubra Shifat ◽  
...  

Background Breast cancer (BCa) is a leading cause of mortality among women in Bangladesh. Many young women in Bangladesh have poor knowledge about breast cancer screening, including risk factors, warning signs/symptoms, diagnosis and early detection. We investigated awareness about breast cancer risk factors as a screening tool among women at the Sheikh Hasina Medical College (SHMC) of Tangail district in Bangladesh. Methods A cross sectional survey was conducted to collect data via a structured questionnaire from SHMC during the period of February to December 2019. A total of 1,007 participants (aged 33.47 (±12.37 years)) was considered for data analysis. Results Of the 1,007 women, about 50% were knowledgeable about the risk factors. Pain in the breast was identified as the most commonly warning sign/symptom of breast cancer. Only 32.2% of respondents knew at least one breast cancer screening method. The mean knowledge was scored 3.43 ± 2.25 out of a total possible score of 8. Awareness of BCa was associated with residence, family history of breast cancer, marital, literacy and socio-economic status (p <0.05). Only 14.7% of women who knew about BSE said they were conducting regular breast self-examination. Unmarried women (aOR: 2.971; 95% CI: 1.108–7.968) were more likely to have performed BSE compared to married women (p <0.05). Conclusion Although most participants were aware of breast cancer; knowledge about risk factors, warning signs/symptoms, early diagnosis and detection was relatively poor. Knowledge about performing BSE was particularly low. This highlights the importance of increasing awareness about breast cancer risk factors and early detection among young women in Bangladesh.


Sign in / Sign up

Export Citation Format

Share Document