The effect of Greek herbal tea consumption on thyroid cancer: a case-control study

Riza, Elena; Linos, Athena; Petralias, Athanassios; Martinis, Luca de; Duntas, Leonidas H.; Linos, Dimitrios

doi:10.1093/eurpub/ckv063

Cited by 16 publications

(9 citation statements)

References 32 publications

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“…From these 16 articles, nine were excluded due to the following reasons: one study did not consider thyroid cancer as an outcome, two studies did not assess coffee as an exposure, one study did not provide calculable information for the OR, four studies were review articles, and one case-control study involved thyroid cancer patients for both the case group (anaplastic thyroid cancer) and the control group (papillary cancer). Therefore, seven articles were included in the meta-analysis [18,19,20,21,22,23,24] (Figure 1). …”

Section: Resultsmentioning

confidence: 99%

Coffee Consumption and the Risk of Thyroid Cancer: A Systematic Review and Meta-Analysis

Han

Kim

2017

IJERPH

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An inverse association has been reported between coffee consumption and the risk of several cancers. However, the association between coffee and thyroid cancer is controversial. Thus, this study aimed to evaluate the association between coffee consumption and the risk of thyroid cancer through a systematic review and meta-analysis. Published studies were examined from PubMed, Embase, Cochrane Central, and the reference lists of the retrieved articles. The summary odds ratio (OR) for the association between coffee consumption was categorized as highest versus lowest consumption, and thyroid cancer risk was calculated using a fixed effects model. Subgroup analyses by study design, geographic location, source of controls, and adjusted variables were performed. A total of 1039 thyroid cancer cases and 220,816 controls were identified from five case-control studies and two cohort studies. The summary OR for the association between coffee consumption and thyroid cancer risk was 0.88 (95% confidence interval (CI) = 0.71–1.07). There was no significant heterogeneity among the study results (I² = 0%, p = 0.79). However, the beneficial effect of coffee consumption on thyroid cancer was found only in hospital-based case-control studies (OR= 0.59, 95% CI= 0.37–0.93). There was no significant association between coffee consumption and thyroid cancer risk according to our meta-analysis results. These findings should be interpreted with caution because of potential biases and confounding variables. Further prospective studies with a larger number of cases are encouraged to confirm these results.

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Section: Resultsmentioning

confidence: 99%

Coffee Consumption and the Risk of Thyroid Cancer: A Systematic Review and Meta-Analysis

Han

Kim

2017

IJERPH

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“…One of the most popular functional beverages is herbal teas (Xuetao, 2015) derived from plants other than Camellia sinensis (Poswal et al, 2019). Herbal teas are beneficial for the maintenance of diabetes (Ryan et al, 2000;Jayawardena et al, 2005;Zemestani et al, 2016), cholesterol level and blood pressure (McKay and Blumberg, 2006;McKay et al, 2010), even for reducing the risk of thyroid cancer (Riza et al, 2015). Liquid-based herbal infusions offered an ideal medium for water-soluble phytochemicals (i.e.…”

Section: Problem Statements and Research Purposesmentioning

confidence: 99%

“…As a type of functional food, one of its most important objective quality attributes was health benefit (Astrini et al, 2020). In previous studies, herbal teas were said to be helpful for the maintenance of diabetes (Jayawardena et al, 2005;Zemestani et al, 2016), cholesterol level and blood pressure (McKay and Blumberg, 2006;McKay et al, 2010), and the risk level of thyroid cancer (Riza et al, 2015). This study used four indicators to measure health belief.…”

Section: Variables and Indicatorsmentioning

confidence: 99%

A repurchase intention model of Indonesian herbal tea consumers: integrating perceived enjoyment and health belief

Astrini

Bakti

Rakhmawati

et al. 2021

BFJ

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PurposeThis research seeks to develop a model to predict repurchase intention based on the modified theory of planned behavior (TPB).Design/methodology/approachThis research is quantitative study involving 150 respondents from five major cities in Indonesia. Data were collected using a questionnaire. Data analysis used confirmatory factor analysis–structural equation modeling (CFA–SEM).FindingsThe research instrument and the proposed model were fit. However, health belief was not proven to have a significant impact on attitude. The perceived behavioral control (PBC) also did not significantly affect repurchase intention.Research limitations/implicationsFuture research that utilizes TPB should incorporate emotional belief as part of the attitude variable.Practical implicationsIn the designing and marketing process, managers of herbal teas companies should consider the health benefits of their products and the feeling of joy it might incite.Originality/valueThe TPB was initially constructed from three variables: subjective norm, attitude and perceived behavioral control (PBC). Unlike previous research, this study considered cognitive and emotional beliefs as the factors that affected attitude.

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“…A pioneering study in the mid-1990s summarized the available epidemiologic information and found that tea consumption is likely to have beneficial effects on reducing the cancer risk in some people [1]. Recently, a meta-analysis found an inverse association between tea consumption and cancer risk [4,58,59,60,61]. However, some evidence does not support the hypothesis that tea can reduce the risk of cancer [62,63].…”

Section: Tea Resists Carcinogenesismentioning

confidence: 99%

Tea and Its Components Prevent Cancer: A Review of the Redox-Related Mechanism

Mao

Xiao

Chen

et al. 2019

IJMS

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Cancer is a worldwide epidemic and represents a major threat to human health and survival. Reactive oxygen species (ROS) play a dual role in cancer cells, which includes both promoting and inhibiting carcinogenesis. Tea remains one of the most prevalent beverages consumed due in part to its anti- or pro-oxidative properties. The active compounds in tea, particularly tea polyphenols, can directly or indirectly scavenge ROS to reduce oncogenesis and cancerometastasis. Interestingly, the excessive levels of ROS induced by consuming tea could induce programmed cell death (PCD) or non-PCD of cancer cells. On the basis of illustrating the relationship between ROS and cancer, the current review discusses the composition and efficacy of tea including the redox-relative (including anti-oxidative and pro-oxidative activity) mechanisms and their role along with other components in preventing and treating cancer. This information will highlight the basis for the clinical utilization of tea extracts in the prevention or treatment of cancer in the future.

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The effect of Greek herbal tea consumption on thyroid cancer: a case-control study

Abstract: Our findings suggest for the first time that drinking herbal teas, especially chamomile, protects from thyroid cancer as well as other benign thyroid diseases.

Cited by 16 publications

References 32 publications

Coffee Consumption and the Risk of Thyroid Cancer: A Systematic Review and Meta-Analysis

Coffee Consumption and the Risk of Thyroid Cancer: A Systematic Review and Meta-Analysis

A repurchase intention model of Indonesian herbal tea consumers: integrating perceived enjoyment and health belief

Tea and Its Components Prevent Cancer: A Review of the Redox-Related Mechanism

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