Neuro-cognitive impairment in breast cancer patients: Pharmacological considerations

2012 ◽  
Vol 83 (1) ◽  
pp. 99-111 ◽  
Author(s):  
Yin Ting Cheung ◽  
Wai Keung Chui ◽  
Alexandre Chan
Keyword(s):  
Breast Cancer ◽  
Cognitive Impairment ◽  
Cancer Patients ◽  
Breast Cancer Patients

scholarly journals An Evaluation of DNA Methyltransferase 1 (DNMT1) Single Nucleotide Polymorphisms and Chemotherapy-Associated Cognitive Impairment: A Prospective, Longitudinal Study

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Alexandre Chan ◽  
Angie Yeo ◽  
Maung Shwe ◽  
Chia Jie Tan ◽  
Koon Mian Foo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cognitive Impairment ◽  
Cognitive Function ◽  
Cancer Patients ◽  
Dna Methyltransferase ◽  
Dna Methyltransferases ◽  
Breast Cancer Patients ◽  
Prospective Longitudinal Study ◽  
Cognitive Domains ◽  
Prospective Longitudinal

Abstract Strong evidence suggests that genetic variations in DNA methyltransferases (DNMTs) may alter the downstream expression and DNA methylation patterns of neuronal genes and influence cognition. This study investigates the association between a DNMT1 polymorphism, rs2162560, and chemotherapy-associated cognitive impairment (CACI) in a cohort of breast cancer patients. This is a prospective, longitudinal cohort study. From 2011 to 2017, 351 early-stage breast cancer patients receiving chemotherapy were assessed at baseline, the midpoint, and the end of chemotherapy. DNA was extracted from whole blood, and genotyping was performed using Sanger sequencing. Patients’ self-perceived cognitive function and cognitive performance were assessed at three different time points using FACT-Cog (v.3) and a neuropsychological battery, respectively. The association between DNMT1 rs2162560 and cognitive function was evaluated using logistic regression analyses. Overall, 33.3% of the patients reported impairment relative to baseline in one or more cognitive domains. Cognitive impairment was observed in various objective cognitive domains, with incidences ranging from 7.2% to 36.9%. The DNMT1 rs2162560 A allele was observed in 21.8% of patients and this was associated with lower odds of self-reported cognitive decline in the concentration (OR = 0.45, 95% CI: 0.25–0.82, P = 0.01) and functional interference (OR = 0.48, 95% CI: 0.24–0.95, P = 0.03) domains. No significant association was observed between DNMT1 rs2162560 and objective cognitive impairment. This is the first study to show a significant association between the DNMT1 rs2162560 polymorphism and CACI. Our data suggest that epigenetic processes could contribute to CACI, and further studies are needed to validate these findings.

Long-term cognitive impairment of breast cancer patients after chemotherapy: A functional MRI study

2016 ◽  
Vol 85 (6) ◽  
pp. 1053-1057 ◽  
Author(s):  
Hui Miao ◽  
Jingjing Li ◽  
Sheng Hu ◽  
Xiaoxuan He ◽  
Savannah C. Partridge ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cognitive Impairment ◽  
Cancer Patients ◽  
Functional Mri ◽  
Breast Cancer Patients ◽  
Mri Study

scholarly journals Managing Cancer and Living Meaningfully (CALM) Intervention on Chemotherapy-Related Cognitive Impairment in Breast Cancer Survivors

2020 ◽  
Vol 19 ◽  
pp. 153473542093845
Author(s):  
Ke Ding ◽  
Xiuqing Zhang ◽  
Jingjing Zhao ◽  
He Zuo ◽  
Ziran Bi ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cognitive Impairment ◽  
Psychological Distress ◽  
Cognitive Function ◽  
Cancer Therapy ◽  
Cancer Patients ◽  
Functional Assessment ◽  
Breast Cancer Survivors ◽  
Breast Cancer Patients ◽  
Before And After

Objective: To evaluate the effectiveness and feasibility of Managing Cancer and Living Meaningfully (CALM), which is used to reduce chemotherapy-related cognitive impairment (CRCI), relieve psychological distress, and improve quality of life (QOL) in Chinese breast cancer survivors (BCs). Methods: Seventy-four BCs were enrolled in this study. All patients were randomly assigned to either the CALM group or the care as usual (CAU) group. All patients were evaluated by the Functional Assessment of Cancer Therapy–Cognitive Function (FACT-Cog), Distress Thermometer (DT), and the Functional Assessment of Cancer Therapy–Breast (FACT-B) before and after CALM or CAU application to BCs with CRCI. We compared the differences in all these scores between the CALM group and the control group and analyzed the correlation between cognitive function and QOL. Results: Compared with the CAU group, the performance of the CALM group on the FACT-Cog, DT, and FACT-B showed significant differences before and after CALM ( t = −18.909, −5.180, −32.421, P = .000, .000, .000, respectively). Finally, there was a positive correlation between cognitive function and QOL in breast cancer patients before ( r = 0.579, P = .000) and after ( r = 0.797, P = .000) treatment. Conclusions: The present results indicated that CALM has salutary effects on the improvement of cognitive impairment and QOL and relieves psychological distress in breast cancer patients, which may be due to a positive correlation between psychological distress and cognitive function or QOL.

scholarly journals Cognitive impairment after cytotoxic chemotherapy

2019 ◽  
Vol 7 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Petra Huehnchen ◽  
Antonia van Kampen ◽  
Wolfgang Boehmerle ◽  
Matthias Endres
Keyword(s):  
Breast Cancer ◽  
Colon Cancer ◽  
Cognitive Impairment ◽  
Cancer Patients ◽  
Cytotoxic Chemotherapy ◽  
Cytotoxic Drugs ◽  
Cytotoxic Agents ◽  
Cancer Type ◽  
Breast Cancer Patients ◽  
The Impact

Abstract Background Neurotoxicity is a frequent side effect of cytotoxic chemotherapy and affects a large number of patients. Despite the high medical need, few research efforts have addressed the impact of cytotoxic agents on cognition (ie, postchemotherapy cognitive impairment; PCCI). One unsolved question is whether individual cytotoxic drugs have differential effects on cognition. We thus examine the current state of research regarding PCCI. Neurological symptoms after targeted therapies and immunotherapies are not part of this review. Methods A literature search was conducted in the PubMed database, and 1215 articles were reviewed for predefined inclusion and exclusion criteria. Thirty articles were included in the systematic review. Results Twenty-five of the included studies report significant cognitive impairment. Of these, 21 studies investigated patients with breast cancer. Patients mainly received combinations of 5-fluorouracil, epirubicin, cyclophosphamide, doxorubicin, and taxanes (FEC/FEC-T). Five studies found no significant cognitive impairment in chemotherapy patients. Of these, 2 studies investigated patients with colon cancer receiving 5-fluorouracil and oxaliplatin (FOLFOX). Independent risk factors for PCCI were patient age, mood alterations, cognitive reserve, and the presence of apolipoprotein E e4 alleles. Conclusions There is evidence that certain chemotherapy regimens cause PCCI more frequently than others as evidenced by 21 out of 23 studies in breast cancer patients (mainly FEC-T), whereas 2 out of 3 studies with colon cancer patients (FOLFOX) did not observe significant changes. Further studies are needed defining patient cohorts by treatment protocol in addition to cancer type to elucidate the effects of individual cytotoxic drugs on cognitive functions.

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