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breast-cancer

Melatonin Reduces Radiation Dermatitis in Breast Cancer Patients

Radiation induced dermatitis is a common adverse effect and complication of radiotherapy.  Topical melatonin has proven to be a safe and effective agent in the prevention and treatment of radio-dermatitis in breast cancer patients.   Melatonin protects the skin by acting both as a topical anti-inflammatory and as an antioxidant. (5)

In a randomized placebo controlled trial women undergoing radiotherapy applied topical melatonin gel twice daily and for 2 weeks after completing radiotherapy.  The control group received a placebo gel. In the melatonin group  the occurrence of Grade1/2 radiation dermatitis was 59% vs 90% of the placebo group. “Patients treated with melatonin-containing emulsion experienced significantly reduced radiation dermatitis compared to patients receiving placebo.” (1). 

Topical Melatonin

  • Reduces inflammation and oxidative stress at the site of  irradiation
  • Delays onset of radio-dermatitis
  • Decreases the intensity of radiodermatitis and skin damage
  • Promotes resolution of dermatitis 
  • Promotes healing of skin
  • Improves Quality of Life 

Stress, nervous strain.Sleepless problem.Medicine diffuser.Flat vector

In two double blind randomized placebo controlled trials by the same research team, breast cancer patients applied a low dose melatonin cream twice daily during their course of radiotherapy.  The control group received a placebo cream.  During the first two weeks of therapy there was no difference between the 2 groups. Although there was no statistical difference, the researchers state that melatonin “demonstrated a protective effect”.   They posited that another study with a higher dose of melatonin is warranted. (3)  Researchers reported that melatonin decreased  breast symptoms of radiation dermatitis and improved quality of life for patients in the melatonin group (4)

In a case report a breast cancer patient applied melatonin cream daily and for 3 weeks after completing. radiotherapy treatment.  Radiation dermatitis did not appear at the radiated site until one week after final treatment (a delayed response) and resolved within 3 weeks of continued use of topical melatonin. (2)

There have been no reports of adverse effects with the use of  topical melatonin.

Apply topical melatonin to irradiated skin twice daily during radiotherapy and continuing for 2-3 weeks after completion of course of treatment until the skin is healed.

Melatonin gel or cream can be made by a compounding pharmacist.  Melatonin is also commercially available as a topical cream, as a liposomal solution and as a topical spray. 

References

1 Melatonin for Prevention of Breast Radiation Dermatitis: A Phase II, Prospective, Double-Blind Randomized Trial.

Ben-David MA, Elkayam R, Gelernter I, Pfeffer RM.

Isr Med Assoc J. 2016 Mar-Apr;18(3-4):188-92.

PMID: 27228641 Free article. Clinical Trial. 

2 Compounded Melatonin Cream for the Prevention and Treatment of Radiation Dermatitis: A Case Report.

Garcia-Segura LC, Garcia-Segura JC, Delgado DC, Romero MN, Salgado EC, Llorens LP.

Int J Pharm Compd. 2022 Jan-Feb;26(1):6-8.

PMID: 35081038 

3 Effect of melatonin cream on acute radiation dermatitis in patients with primary breast cancer: A double-blind, randomized, placebo-controlled trial.

Zetner D, Kamby C, Christophersen C, Gülen S, Paulsen CB, Piga E, Hoffmeyer B, Mahmood F, Rosenberg J.

J Pineal Res. 2023 Apr 13:e12873. doi: 10.1111/jpi.12873. Online ahead of print.

PMID: 37055944 

 

 

blood-test

What Common Blood Tests Can Detect Early Signs of Cancer

While there is no simple blood test for predicting who will get cancer, there is a lot of information to be gleaned from basic blood work that, taken together, reveals much about an individual’s predispositions for many forms of cancer. By monitoring selected biomarkers routinely measured in primary care, you can learn a lot about physiological patterns that promote carcinogenesis, proliferation, progression, and recurrence long before tumor markers emerge or there are radiological or pathological findings indicating cancer.

The art of assessment lies in part in recognizing the patterns. By learning how to read the multiple biochemical signals that emerge from a pro-carcinogenic “tumor microenvironment,” you can begin to practice real prevention, and give your patients the opportunity for significant improvements in both health-span and lifespan.

The tests included in this article here are ones you are routinely ordering in the integrative and functional medicine setting. While they are not to be misconstrued as diagnostic tests for cancer, they can indicate that a patient is at increased risk, and that further assessment and action is required to identify potential malignancy.

In people who’ve had cancer, these common tests are often prognostic for disease progression and recurrence.

It is vital that primary care practitioners do a better job of recognizing the early signs of recurrence among cancer survivors. According to the American Cancer Society’s 2016-2017 Survivorship Facts and Figures, the population of cancer survivors will increase to 20.3 million by January 1, 2026.

After conventional oncology treatment is finished, these patients typically return to their primary care physicians. They are highly motivated, ripe for change, and in search of clinicians who can support their efforts to restore health and prevent recurrence.

The tests described below will help you fill that role.

Complete Blood Count

One of the most common biomarkers of overall health is the Complete Blood Cell panel, which can be used to monitor hematologic abnormalities caused by solid tumors, hematologic malignancies, as well as the side-effects of the therapies used to treat them.

The following findings are not definitive diagnostic signals, but taken together, they suggest that someone is at greatly increased risk:

  • Elevated White Blood Cells > 11.0 109/L
  • Elevated Platelets > 350 109/L
  • Low Hemoglobin <10.0 g/dL
  • High Neutrophil to Lymphocyte Ratio (NLR)

The latter finding—a high NLR—is especially important.

Neutrophils promote cancer progression, proliferation, and metastasis by increasing vascular endothelial growth factor (VEGF), Hepatocyte growth factors, inflammatory cytokines IL-6, IL-8, matrix metalloproteinases (MMP), and elastase. Neutrophils and macrophages secrete tumor growth promoting factors and contribute to a proliferative tumor microenvironment.

Therefore a high neutrophil count is suggestive of a neoplastic process somewhere in the body.

According to a 2014 metanalysis of 57 studies, an NLR greater than 4.0 was associated with a hazard ratio for overall survival (OS) of 1.81 (95% CI = 1.67 to 1.97; P < .001), an effect observed in all disease subgroups, sites, and stages and that predicts increased risk of mortality (Templeton AJ, et al. JNCI. 2014:106(6).)

Simply put, an NLR over 4 predicts tumor progression and poor overall survival. This is a readily available and inexpensive biomarker with a lot of prognostic value.

Hyperglycemia

A fasting glucose in the range of 100-126 mg/dl is suggestive of cancer risk.

Glucose may have a direct role in cancer development. Tumor cells have increased numbers of receptors for insulin, insulin-like growth factor, and GLUT4. Thus, they transport more glucose into themselves, and this promotes growth and proliferation. It is the main reason for using a low-glycemic, modified ketogenic diet in patients with cancer.

Proliferating tumor cells have up- regulated glucose transporters. Elevated serum glucose is linked to increased risk and progression of many solid cancers, including breast cancer (Haseen SD, et al. Asian Pac J Cancer Prev, 2015:  16, 675-8).

High glucose levels also result in a state of chronic inflammation, which leads to an increase of cytokines, such as interleukin 6 (IL-6), tissue necrosis factor alpha (TNF-α) and vascular endothelial growth factor (VEGF). All of these promote cancer progression, proliferation, and metastasis (Crawley DJ, et al. BMC Cancer, 14(1), 985).

Given the high prevalence of diabetes, metabolic syndrome, and insulin resistance in the US, this is an important indicator to watch.

Serum glucose is a modifiable risk factor. Diet and lifestyle changes that reduce and regulate glucose will also help to reduce risk and progression of cancer.

High Insulin & Low SHBG 

Prolonged hyperinsulinemia leads to reduced hepatic production of sex hormone binding globulin (SHBG). This, in turn, increases risk of steroid hormone driven cancers. Low SHBG results in increased amounts of unbound estrogens and androgens that drive carcinogenesis in breast, endometrial, prostate lung, colorectal and pancreatic tissues.

Free unbound estrogen also exerts immunosuppressive effects in the tumor microenvironment, and has a profound impact on anti-tumor immunity and tumor-promoting inflammation that is completely independent from its direct activity on tumor cells (Svoronos N, et al. Cancer Discovery, 2017: 7(1), 72-85).

Low Serum Albumin

Serum albumin levels have prognostic significance in cancer, and can be used to better define baseline risk in cancer patients. It is generally useful in assessing the nutritional status, disease severity, disease progression, and prognosis.

In a multivariate analysis of 29 studies, Gupta and Lis found, “higher serum albumin levels to be associated with better survival.” (Gupta D, Lis CG. Nutrition Journal, 2010: 9(1), 69).

In the early stages of cancer, there is slight or no hypoalbuminemia. But as the disease progresses, malnutrition and inflammation suppress albumin synthesis, and albumin levels drop significantly.

Albumin levels under 3.5 g/dL are often seen in patients with sarcopenia and cachexia. Malnutrition is a predictor of reduced survival. It is also associated with deteriorating quality of life, decreased response to treatment, increased risk of chemotherapy-induced toxicity, and a reduction in cancer survival.

On the high side, albumin concentrations above 37.5 g/L are predictive of both chemotoxicity and of survival (Srdic D, et al. Supportive Care in Cancer, 2016: 24(11), 4495-4502).

It is also important to look at the Albumin-to-Globulin Ratio.

A ratio of less than 1.66 is a risk factor for cancer incidence and mortality, both short- and long term, in generally healthy screened adults. In people who’ve already developed some form of cancer, a low albumin-to-globulin ratio predicts low overall survival (Suh B, et al. Ann Ocol (2014): 25(11), 2260-2266).

Elevated Ferritin

Ferritin, a strong negative survival predictor, has been associated with the pathological processes of inflammation and infection. High ferritin is suggestive of inflammation, immunosuppression, tumor angiogenesis, and proliferation.

Elevated serum ferritin—indicated by levels over 200 ng/ml in men, and over 150 ng/ml in women–have been seen in people with breast cancer, pancreatic cancer, non-small cell lung cancer, hepatocellular carcinoma, leukemia, colorectal cancer and lymphoma.

High ferritin levels are significantly associated with reduced survival time and increased mortality in cancer patients (Lee S, et al. J Cancer, 2016: 7(8), 957-964)

25-OH Vitamin D Deficiency

Vitamin D has a multi-functional impact on the tumor microenvironment. Increased levels of Vitamin D are associated with reduced occurrence and reduced mortality of different types of cancer, including skin, prostate, breast, colon, ovary, kidney, and bladder.

Vitamin D is involved in a very wide range of physiological processes relevant to cancer development, including: Regulation of Gene Transcription; Growth Arrest; Apoptosis; Cellular Differentiation; DNA Repair; Antioxidant Protection; Immune Modulation; Regulation of Pro-Inflammatory Cytokines; and Control of Angiogenesis & Metastasis.

Low or suboptimal levels of 25-OH Vitamin D are associated not only with increased risk of various forms of cancer, but also with poor prognosis, and more aggressive disease (McDonnell SL, et al. PloS One, 2016: 11(4), e0152441).

This is particularly true in breast cancer. In one study, vitamin D-deficient women with breast cancer typically had more aggressive molecular phenotypes and worse prognostic indicators than those with adequate vitamin D (Williams JD, et al. Endocrinology, 2016: 157(4), 1341-1347).

The Vitamin D Council suggests repletion to 40 to 80 ng/mL, with a target of 50 ng/ml, for optimal health on multiple fronts, including colorectal cancer prevention (Bischoff-Ferrari HA, et al. Am J Clin Nutr, 2006: 84(1), 18-28).

Supplementation to reach mean serum concentrations of 72 nmol/L showed a beneficial effect  against cancer development (Lappe JM, et al. Am J Clin Nutr. 2007: 85(6), 1586-1591).

When assessing patients in the context of cancer risk, the following guidelines are useful:

25 –hydroxy- Vitamin D (ng/ml)

Deficient                                                        < 50

Optimal                                                           50-70

Optimal for Cancer & CVD                70-99

Excess                                                            >100

Elevated Lactic Acid Dehydrogenase

Lactate dehydrogenase (LDH) is an enzyme that catalyzes the reduction of pyruvate to lactate.

Aberrant metabolism and inefficient fuel production is a characteristic of tumor cells, which are dominated by aerobic glycolysis, increased lactate production, and a higher uptake of glucose (the Warburg effect).

Elevated LDH may be a marker of these aberrant metabolic processes in cancer cells.

The normal range for LDH is thought to be 100-333 u/L, with levels greater than 245 u/L considered to be in the upper quartile of normal. Above that 245 u/L mark, it is suggestive of early carcinogenesis, tumor cell proliferation, tumor progression, and poor prognosis.

It is often highly elevated in aggressive forms of cancer and hematological malignancies including: melanoma, lymphoma, acute leukemia, seminoma germ cell, pancreatic, gastric, lung, renal cell, nasopharyngeal, esophageal, cervical, and prostate cancers (Wulaningsih W, et al. Br J Cancer. 2015:113(9). Zhang J, et al. Sci Rep. 2015:5, 9800).

Elevated C-Reactive Protein

C-Reactive Protein (CRP) is a well-established inflammatory marker. It is also a biomarker of cancer survival.

CRP is elevated in patients with solid tumors, and high levels predict poor prognosis, blunted treatment response, as well as tumor recurrence.

As part of the systemic inflammatory response to a tumor, the body releases pro-inflammatory cytokines and growth factors. Interleukin-6, produced by the tumor or surrounding cells, stimulates liver production of acute-phase reaction proteins that increase C-reactive protein (CRP) and fibrinogen.

Elevated CRP correlates with disease stage and increased cancer mortality (Shrotriya S, et al. PloS One. 2015: 10(12), e0143080). Individuals with a high baseline CRP (>3 mg/L) have an 80% greater risk of early death compared with those with low CRP levels (<1 mg/L).  

Patients with invasive breast cancer and CRP levels>3 mg/L at diagnosis have a 1.7 fold increased risk of death compared to those with CRP levels<1 mg/L at diagnosis (Allin KH, et al. Breast Cancer Res. 2011: 13(3), R55).

Converging Signals

No one of the aforementioned test parameters is, in and of itself, an indicator that someone has cancer. But by looking at standard blood test results in a new way, you can start to recognize the patterns of high risk and active cancer physiology. This is crucial to early identification and early intervention.

Clinicians who are aware of the converging signs can meaningfully shift the microenvironment from one that promotes cancer to one that is not supportive of carcinogenesis, proliferation, or progression. In the same way, we can provide meaningful support for the rising tide of underserved cancer survivors and at-risk patients in need of not only a disease plan, but also a health plan.

blood-test

Selected Prognostic Cancer Biomarkers from Common Blood Tests

What Can You Learn About Cancer Survival from a CBC?

Common Biomarkers, Cancer Progression and Survival

tumor microenvironment

An excellent paper "Inflammatory markers in cancer: Potential resources * is a thorough and detailed discussion of routinely measured Cancer Biomarkers found in the inflamed tumor microenvironment that are indicative of immune capacity and prognosis. Clinicians will typically have access to a current CBC (Complete Blood Count) with differential and can readily calculate the lymphocyte ratios below

The presence of inflammatory markers is linked to both risks of cancer development and cancer survival.  Cancer-related inflammation is associated with tumorigenesis and tumor progression. Increased levels of multiple biomarkers are present in the tumor microenvironment.

A thorough evaluation will include Cytokines, Leukocytes, Acute-phase proteins (ferritin, ceruloplasmin, CRP).     

Although not routinely measured, prostaglandins, cyclooxygenases, lipoxygenases, transcription factors, and LDH may be elevated. 

Cancer Related Inflammation Promotes

  • Tumor Growth
  • Proliferation
  • Progression
  • Angiogenesis  
  • Metastasis
  • Thrombus Formation
  • Immune Suppression
  • Cancer Related Fatigue  
  • Depression
  • Pain

Selected Prognostic Cancer Biomarkers from the CBC and CMP

  • Neutrophil: Lymphocyte Ratio
  • Lymphocyte: Monocyte Ratio
  • Platelet: Lymphocyte Ratio
  • CRP: Albumin Ratio
  • Hypoalbuminemia

Neutrophil / Lymphocyte Ratio (NLR)

  • Neutrophyl LymphocytesThe neutrophils act as tumor-promoting leukocytes, capable of suppressing anti-tumor immune response; are effectors of angiogenesis; promote leakage of tumor cells and endothelial cells into the circulation, therefore contributing to participate in the metastatic cascade. Therefore, an elevated neutrophil count can stimulate tumor angiogenesis and contribute to disease progression, thus leading to a negative correlation between neutrophil density and patient survival. 
  • On the other hand, lymphocytes are a part of the host’s antitumor response the presence of lymphocytes in the tumor is associated with better responses to chemotherapy and better prognosis. 
  • Thus, the NLR can reflect the balance between the activation of the inflammatory pathway and the antitumor immune function. 
  • The division of neutrophil count by lymphocyte count is defined as NLR. 
  • An increase in NLR has been reported to correlate with poor prognosis in cancer patients.
  • A cut-off value between 2-4 has been reported in cancer patients.

Faria, S. S., Fernandes, P. C., Silva, M. J., Lima, V. C., Fontes, W., Freitas-Junior, R., Eterovic, A. K., Forget, P. The neutrophil-to-lymphocyte ratio: a narrative review. Ecancermedicalscience, 10, 702 (2016) DOI:10.3332/ecancer.2016.702 

Lymphocyte/Monocyte Ratio (LMR) 

  • Lymphocytopenia has been associated with increased tumor burden and poor prognosis. The probable cause could be the destruction of lymphocytes by tumor cells which decreases the body’s anti-tumor response.
  • Monocytosis has also been found to be associated with poor prognosis as they Tumor-associated macrophages, which are an important mediator of cancer progression and metastases. 
  • The division of lymphocyte count by monocyte count is defined as LMR. 
  • A low LMR as a simple biomarker of the host immune system has been suggested to be related to poor prognosis in various cancers. 
  • The median cut-off value for LMR has been reported to be 3.0.

Nishijima TF, Muss HB, Shachar SS, Tamura K, Takamatsu Y Prognostic value of the lymphocyte-to-monocyte ratio in patients with solid tumors: a systematic review and meta-analysis. Cancer Treat Rev 41(10) 971-8 (2015) DOI: 10.1016/j.ctrv.2015.10.003 

Platelet/Lymphocyte Ratio (PLR)

  • Platelet/ LymphocytePlatelets are another important tumor-promoting leukocyte. They secrete vascular endothelial growth factor (VEGF), epidermal growth factor (EGF), platelet-derived growth factor (PDGF), hepatocyte growth factor (HGF), insulin-like growth factor (IGF), transforming growth factor β (TGFβ), and many cytokines which promote epithelial to mesenchymal transition (EMT) and promote metastasis.
  • Lymphocytes, as we know, are part of the host's defense against tumors. 
  • The division of platelet count by lymphocyte count is defined as PLR. 
  • The cutoff value estimated for PLR is 160. 
  • A high PLR value correlates with a poor response to therapy and a bad prognosis.

Templeton AJ, Ace O, McNamara MG, Al-Mubarak M, Vera-Badillo FE, Hermanns T, Seruga B, Ocaña A, Tannock IF, Amir E. Prognostic role of platelet to lymphocyte ratio in solid tumors: a systematic review and meta-analysis. Cancer Epidemiol Biomarkers Prev 23(7) 1204–12 (2014)  DOI: 10.1158/1055-9965.EPI-14-0146 

CRP/Albumin Ratio (GPS_Glasgow Prognostic Score)

  • Albumin-300x281-1A combination of Albumin and C-reactive protein (CRP) measurements into a 3level predictive score. 
  • Patients who had both a serum elevation of CRP (>1.0 mg/dL) and hypoalbuminemia (<3.5 g/dL) were allocated a GPS of 2. 
  • Patients with only one of the abnormal values were allocated a GPS of 1, and 
  • Patients who had neither were allocated a GPS of 0. 
  • Survival decreases with increasing score

McMillan DC, Crozier JE, Canna K, Angerson WJ, McArdle CS. Evaluation of an inflammation-based prognostic score (GPS) in patients undergoing resection for colon and rectal cancer. Int J Colorectal Dis. 22(8):881–886 9 (2007) DOI: 10.1007/s00384-006-0259-6 

Hypoalbuminemia (mGPS mGlasgow Prognostic Score)

  • Patients who had both a serum elevation of CRP (>1.0 mg/dL) and hypoalbuminemia (<3.5 g/dL) were allocated a GPS of 2. 
  • Patients who had only serum elevation of CRP but not hypoalbuminemia were allocated an mGPS of 1, and 
  • Patients who had neither or only hypoalbuminemia were allocated a mGPS of 0. 
  • Survival decreases with increasing scores.

Similar to GPS but hypoalbuminemia = score 0
Proctor MJ, Morrison DS, Talwar D, Balmer SM, O'Reilly DS, Foulis AK, et al. An inflammation-based prognostic score (mGPS) predicts cancer survival independent of tumor site: a Glasgow Inflammation Outcome Study. Br J Cancer. 104(4):726–734 (2011) DOI: 10.1038/sj.bjc.6606087 
*Richa Chauhan, Vinita Trivedi, Inflammatory markers in cancer: Potential resources 
Frontiers in Bioscience, Scholar, 12, 1-24, Jan 1, 2020