Increased oxidative damage to membrane lipids following surgery for breast cancer

Abstract

OBJECTIVES: To evaluate the level of oxidative damage to membrane lipids due to the breast cancer surgery in the early postoperative period.

PATIENTS AND METHODS: Blood samples were collected on the preoperative day and 24 hours postoperatively in 71 women operated for breast cancer, and preoperatively in 38 female patients with benign breast tumour. Lipid peroxidation (LPO) in the blood samples was estimated by measuring the concentrations of malondialdehyde+4-hydroxyalkenals (MDA+4-HDA) with spectrophotometry.

CLINICAL DATA INCLUDED: tumour site, tumour histological findings, cancer stage, grade, tumour volume, state of lymph nodes, type of surgery for breast, type of surgery for axilla.

RESULTS: Blood LPO level was similar in breast cancer patients and benign tumour patients (2.01±0.46 nmol/ml vs. 1.92±0.39 nmol/ml, respectively; p>0.05). In cancer patients, MDA+4-HDA increased on the first postoperative day, i.e. from 2.01±0.46 nmol/ml to 2.58±0.98 nmol/ml (p=0.0001). In women with benign breast tumour, LPO did not relate to the histological finding (p=0.8915). In the breast cancer group, preoperative LPO did not correlate with age, tumour volume and number of metastatic lymph nodes. Level of MDA+4-HDA was similar in stages I/II (2.03±0.46 nmol/ml) compared to stages III/IV (1.69±0.26 nmol/ml, p=0.1521). Consequently, levels of MDA+4-HDA did not relate to disease stage (p=0.1364).

CONCLUSIONS: Surgery for breast cancer causes peripheral increase in oxidative damage to macromolecules in the early postoperative period. Therefore, perioperative antioxidant supplementation should be considered.

NOTE: This publication cites

• Ref. N°7: Di Bella G1, Colori B. - The Di Bella Method (DBM) improved survival, objective response and performance status in a retrospective observational clinical study on 23 tumours of the head and neck. Neuro Endocrinol Lett. 33: 249–256;
• Ref. N°8: Di Bella G., Colori B., Mascia F. - The Di Bella Method (DBM) improved survival, objective response and performance status in a retrospective observational clinical study on 55 cases of lymphomas. Neuro Endocrinol Lett. 33: 773–781;
• Ref. N°9: Di Bella G., Mascia F., Ricchi A., Colori B. - Evaluation of the safety and efficacy of the first-line treatment with somatostatin combined with melatonin, retinoids, vitamin D3, and low doses of cyclophosphamide in 20 cases of breast cancer: a preliminary report. Neuro Endocrinol Lett. 34: 660–668.

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- Official Web Site: The Di Bella Method;

- The Di Bella Method (A Fixed Part - Bromocriptine and/or Cabergoline);

- Beta-Carotene or β-carotene in Solution of retinoids in vitamin E in the Di Bella Method biological multitherapy;

- The Di Bella Method (A Fixed Part - Calcium, 2 grams per day, orally);

- The Di Bella Method (A Fixed Part - Cyclophosphamide 50mg tablets and/or Hydroxyurea 500mg tablets, one or two per day);

- The Di Bella Method (A Variable Part - Clioquinol, 125 μg capsules);

- The Di Bella Method (A Fixed Part - Melatonin tablets. From 30-40mg/day up to 200mg/day orally in patients with advanced stage of cancer disease and/or patients without respond to traditional treatments);

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- The Di Bella Method (A Variable Part - Omega 3 Essential/Unsaturated Fatty Acids. From 1.5 grams up to 3.0 grams per day orally);

- The Di Bella Method (A Fixed Part - All-Trans Retinoic Acid, Analogues and/or Derivatives - Approximately 60mg per day orally: 40mg per day Beta-Carotene/β-Carotene, 10mg per day ATRA and 10mg per day Axerophthol palmitate);

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- The Di Bella Method (A Variable Part - Selenium methonine, 40 μg capsules, twice a day);

- The Di Bella Method (A Fixed Part - Somatostatin, Octreotide, Sandostatin LAR, analogues and/or derivatives);

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- Publication, 2018 Jul: Over-Expression of GH/GHR in Breast Cancer and Oncosuppressor Role of Somatostatin as a Physiological Inhibitor (from Di Bella's Foundation);

- Publication, 2018 Sep: The over-expression of GH/GHR in tumour tissues with respect to healthy ones confirms its oncogenic role and the consequent oncosuppressor role of its physiological inhibitor, somatostatin: a review of the literature (from Di Bella's Foundation);

- Publication, 2019 Aug: The Entrapment of Somatostatin in a Lipid Formulation: Retarded Release and Free Radical Reactivity (from Di Bella's Foundation);

- Publication, 2019 Sep: Effects of Somatostatin and Vitamin C on the Fatty Acid Profile of Breast Cancer Cell Membranes (from Di Bella's Foundation);

- The Di Bella Method (A Fixed Part - Vitamin C/Ascorbic Acid, 2–4 grams, twice a day orally);

- The Di Bella Method (A Fixed Part - Dihydrotachysterol, Alfacalcidol, synthetic Vitamin D3);

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