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Exploring the handedness-breast cancer nexus: a comprehensive analysis via systematic review, meta-analysis, and Mendelian randomization.

Ther Adv Med Oncol

December 2024

Department of Anatomy and Department of Biomedical Informatics, Pusan National University, 49 Busandaehak-ro, Yangsan 50612, Republic of Korea.

Background: Given the widespread prevalence of breast cancer as a global malignancy, there is a compelling need to delve into its risk determinants.

Objective: This study aims to investigate the potential relationship between indicators of left-handedness and breast cancer, employing systematic review, meta-analysis, and Mendelian randomization methods.

Design: Systematic review and meta-analysis.

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Background: Humans show a preference for left or right handedness in most cases. For this reason, surgeons might find it more difficult to operate on the "nondominant breast", i.e.

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Background: Breast cancer (BC) is one of the most common cancers in the world. Studies show that left-sided BC in pre and post-menopausal women leads to double the risk of worse morbidity and mortality and the reasons are uncertain. Finding the relationship between BC laterality and other possible risk factors can be advantageous for the prognosis of BC.

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The occurrence of breast cancer-related lymphedema (BCRL) in postoperative breast cancer survivors is described and the independent risk factors of BCRL are analyzed. A BCRL nomogram prediction model is constructed, and its effectiveness is evaluated to screen out high-risk patients with BCRL. A univariate analysis was carried out to determine the risk factors possibly related to BCRL, and a logistic regression analysis was utilized to determine the independent risk factors related to BCRL.

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The Yin and Yang of Breast Cancer: Ion Channels as Determinants of Left-Right Functional Differences.

Int J Mol Sci

July 2023

Institute of Histology and Embryology, National Council of Scientific and Technological Research (CONICET), Parque General San Martin, Mendoza 5500, Argentina.

Breast cancer is a complex and heterogeneous disease that displays diverse molecular subtypes and clinical outcomes. Although it is known that the location of tumors can affect their biological behavior, the underlying mechanisms are not fully understood. In our previous study, we found a differential methylation profile and membrane potential between left (L)- and right (R)-sided breast tumors.

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