Comparison of the effects of high-intensity interval and moderate-intensity continuous training on inflammatory markers, cardiorespiratory fitness, and quality of life in breast cancer patients.

BACKGROUND: As the effectiveness of breast cancer treatment has improved, a growing number of long-term breast cancer survivors are seeking help for unique health problems. These patients may be at increased risk of cardiovascular disease due to the side effects of treatment. The positive impact of most types of exercise has been repeatedly reported in people with cancer, but the most effective exercise approaches for maximum beneficial adaptations remain controversial. Thus, this study aimed to compare the effects of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on inflammatory indices, adipokines, metabolic markers, body composition, cardiorespiratory fitness, and quality of life in breast cancer patients during adjuvant endocrine therapy. METHODS: Thirty non-metastatic breast cancer patients during adjuvant endocrine therapy who had been treated with chemotherapy and/or radiotherapy were recruited from Iran and randomized to HIIT, MICT, or control groups for a supervised exercise intervention that took place 3 times a week for 12 weeks. The training intensity was determined based on the peak oxygen uptake (VO2peak), and the volume of training was matched in HIIT and MICT based on the VO2peak. Body composition, functional capacity, cardiorespiratory fitness, metabolic indices, sex hormones, adipokines, and inflammatory markers were assessed before and after the intervention. RESULTS: The VO2peak increased by 16.8% in the HIIT group in comparison to baseline values (mean difference = 3.61 mL/kg/min). HIIT significantly improved the VO2peak compared to control (mean difference = 3.609 mL/kg/min) and MICT (mean differences = 2.974 mL/kg/min) groups. Both HIIT (mean difference = 9.172 mg/dL) and MICT (mean difference = 7.879 mg/dL) interventions significantly increased high-density lipoprotein cholesterol levels compared to the control group. The analysis of covariance showed that physical well-being significantly improved in MICT compared to control group (mean difference = 3.268). HIIT significantly improved the social well-being compared to the control group (mean difference = 4.412). Emotional well-being subscale was significantly improved in both MICT (mean difference = 4.248) and HIIT (mean difference = 4.412) compared to the control group. Functional well-being scores significantly increased in HIIT group compared with control group (mean difference = 3.35) . Significant increase were also observed in total functional assessment of cancer therapy-General scores in both HIIT (mean difference = 14.204) and MICT groups (mean difference = 10.036) compared with control group. The serum level of suppressor of cytokine signaling 3 increased significantly (mean difference = 0.09 pg/mL) in the HIIT group compared to the baseline. There were no significant differences between groups for body weight, body mass index, fasting blood glucose, insulin resistance, sex hormone binding globulin, total cholesterol, low-density lipoprotein cholesterol, adipokines, interleukin-6, tumor necrosis factor-α, or interleukin-10. CONCLUSION: HIIT can be used as a safe, feasible, and time-efficient intervention to improve cardiovascular fitness in breast cancer patients. Both HIIT and MICT modalities enhance quality of life. Further large-scale studies will help determine whether these promising results translate into improved clinical and oncological outcomes.

Systematic review of women's knowledge, attitude, and practice towards breast cancer.

The present study aims to systematically review the women's knowledge, attitude, and practice (KAP) of breast cancer (BC) screening methods to get enough information for policymakers to orient the screening strategies. All English KAP studies on BC screening methods in five databases up to January 2021 were included. The quality of the final articles was assessed using the STROBE checklist. The qualitative synthesis was performed. Out of 5574 retrieved articles, 28 were included. About 64% of the articles were of high quality. Overall, there were poor knowledge, negative attitude, and low practice between women. The educational programs and cultural plans can encourage regular screening. Women's excessive optimism to their BC risk should be eliminated by focusing on the risk of the disease, more.

Population or family history based BRCA gene tests of breast cancer? A systematic review of economic evaluations.

BACKGROUND: Nearly 56% of at-risk carriers are not identified and missed as a result of the current family-history (FH) screening for genetic testing. The present study aims to review the economic evaluation studies on BRCA genetic testing strategies for screening and early detection of breast cancer. METHODS: This systematic literature review is conducted within the Cochrane Library, PubMed, Scopus, Web of Science, ProQuest, and EMBASE databases. In this paper, the relevant published economic evaluation studies are identified by following the standard Cochrane Collaboration methods and adherence to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement reporting some recommendations for articles up to March 2020. Thereafter, the inclusion and exclusion criteria are applied to screen the articles. Disagreements are resolved through a consensus meeting. The Consolidated Health Economic Evaluation Reporting Standards (CHEERS) checklist is used in the evaluation of quality. Finally, a narrative synthesis is performed. To compare the different levels of incremental cost-effectiveness ratio (ICER), the net present value is calculated based on a discount rate of 3% in 2019. RESULTS: Among 788 initially retrieved citations, 12 studies were included. More than 60% of the studies were originated from high-income countries and were published after 2016. It is noteworthy that most of the studies evaluated the payer perspective. Moreover, the robustness of the results were analyzed through one-way and probabilistic sensitivity analyses in nearly 66% of these studies. Nearly, 25% of the studies are focused and defined population-based and family history BRCA tests as comparators; afterwards, the cost-effectiveness of the former was confirmed. The highest and lowest absolute values for the ICERs were $65,661 and $9 per quality adjusted life years, respectively. All studies met over 70% of the CHEERs criteria checklist, which was considered as 93% of high quality on average as well. CONCLUSIONS: The genetic BRCA tests for the general population as well as unselected breast cancer patients were cost-effective in high and upper-middle income countries and those with prevalence of gene mutation while population-based genetic tests for low-middle income countries are depended on the price of the tests.

Exploring neighborhood inequality in female breast cancer incidence in Tehran using Bayesian spatial models and a spatial scan statistic.

OBJECTIVES: The aim of this study was to explore the spatial pattern of female breast cancer (BC) incidence at the neighborhood level in Tehran, Iran. METHODS: The present study included all registered incident cases of female BC from March 2008 to March 2011. The raw standardized incidence ratio (SIR) of BC for each neighborhood was estimated by comparing observed cases relative to expected cases. The estimated raw SIRs were smoothed by a Besag, York, and Mollie spatial model and the spatial empirical Bayesian method. The purely spatial scan statistic was used to identify spatial clusters. RESULTS: There were 4,175 incident BC cases in the study area from 2008 to 2011, of which 3,080 were successfully geocoded to the neighborhood level. Higher than expected rates of BC were found in neighborhoods located in northern and central Tehran, whereas lower rates appeared in southern areas. The most likely cluster of higher than expected BC incidence involved neighborhoods in districts 3 and 6, with an observed-to-expected ratio of 3.92 (p<0.001), whereas the most likely cluster of lower than expected rates involved neighborhoods in districts 17, 18, and 19, with an observed-to-expected ratio of 0.05 (p<0.001). CONCLUSIONS: Neighborhood-level inequality in the incidence of BC exists in Tehran. These findings can serve as a basis for resource allocation and preventive strategies in at-risk areas.

Breast Cancer Trend in Iran from 2000 to 2009 and Prediction till 2020 using a Trend Analysis Method.

BACKGROUND: Breast cancer is the most common cancer in women worldwide with a rising incidence rate in most countries. Considering the increase in life expectancy and change in lifestyle of Iranian women, this study investigated the age-adjusted trend of breast cancer incidence during 2000-2009 and predicted its incidence to 2020. MATERIALS AND METHODS: The 1997 and 2006 census results were used for the projection of female population by age through the cohort-component method over the studied years. Data from the Iranian cancer registration system were used to calculate the annual incidence rate of breast cancer. The age-adjusted incidence rate was then calculated using the WHO standard population distribution. The five-year-age-specific incidence rates were also obtained for each year and future incidence was determined using the trend analysis method. Annual percentage change (APC) was calculated through the joinpoint regression method. RESULTS: The bias adjusted incidence rate of breast cancer increased from 16.7 per 100,000 women in 2000 to 33.6 per 100,000 women in 2009. The incidence of breast cancer had a growing trend in almost all age groups above 30 years over the studied years. In this period, the age groups of 45-65 years had the highest incidence. Investigation into the joinpoint curve showed that the curve had a steep slope with an APC of 23.4% before the first joinpoint, but became milder after this. From 2005 to 2009, the APC was calculated as 2.7%, through which the incidence of breast cancer in 2020 was predicted as 63.0 per 100,000 women. CONCLUSIONS: The age-adjusted incidence rate of breast cancer continues to increas in Iranian women. It is predicted that this trend will continue until 2020. Therefore, it seems necessary to prioritize the prevention, control and care for breast cancer in Iran.

Assessment of a Hospital Palliative Care Unit (HPCU) for Cancer Patients; A Conceptual Framework.

INTRODUCTION: The first hospital palliative care unit (HPCU) in Iran (FARS-HPCU) has been established in 2008 in the Cancer Institute, which is the largest referral cancer center in the country. We attempted to assess the performance of the HPCU based on a comprehensive conceptual framework. The main aim of this study was to develop a conceptual framework for assessment of the HPCU performances through designing a value chain in line with the goals and the main processes (core and support). MATERIALS AND METHODS: We collected data from a variety of sources, including international guidelines, international best practices, and expert opinions in the country and compared them with national policies and priorities. We also took into consideration the trend of the HPCU development in the Cancer Institute of Iran. Through benchmarking the gap area with the performance standards, some recommendations for better outcome are proposed. RESULTS: The framework for performance assessment consisted of 154 process indicators (PIs), based on which the main stakeholders of the HPCU (including staff, patients, and families) offered their scoring. The outcome revealed the state of the processes as well as the gaps. CONCLUSION: Despite a significant improvement in many processes and indicators, more development in the comprehensive and integrative aspects of FARS-HPCU performance is required. Consideration of all supportive and palliative requirements of the patients through interdisciplinary and collaborative approaches is recommended.

Spatial analysis of common gastrointestinal tract cancers in counties of Iran.

BACKGROUND: Gastrointestinal tract cancers are among the most common cancers in Iran and comprise approximately 38% of all the reported cases of cancer. This study aimed to describe the epidemiology and to investigate spatial clustering of common cancers of the gastrointestinal tract across the counties of Iran using full Bayesian smoothing and Moran I Index statistics. MATERIALS AND METHODS: The data of the national registry cancer were used in this study. Besides, indirect standardized rates were calculated for 371 counties of Iranand smoothed using Winbug 1.4 software with a full Bayesian method. Global Moran I and local Moran I were also used to investigate clustering. RESULTS: According to the results, 75,644 new cases of cancer were nationally registered in Iran among which 18,019 cases (23.8%) were esophagus, gastric, colorectal, and liver cancers. The results of Global Moran's I test were 0.60 (P=0.001), 0.47 (P=0.001), 0.29 (P=0.001), and 0.40 (P=0.001) for esophagus, gastric, colorectal, and liver cancers, respectively. This shows clustering of the four studied cancers in Iran at the national level. CONCLUSIONS: High level clustering of the cases was seen in northern, northwestern, western, and northeastern areas for esophagus, gastric, and colorectal cancers. Considering liver cancer, high clustering was observed in some counties in central, northeastern, and southern areas.