Tea consumption is associated with cognitive impairment in older Chinese adults

Yingjie, Gu; Cai, He; Li, Su; Zhang, Shuyi; Duan, Shengyu; Sun, Hongpeng; Shen, Yueping; Xu, Yong; Yin, Jieyun; Pan, Chen-Wei

doi:10.1080/13607863.2017.1339779

Cited by 30 publications

(22 citation statements)

References 42 publications

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“…In a study conducted in Japan by Kuriyama et al [180] in a group of 1003 persons aged > 70 years, it was demonstrated that the incidence of cognitive disorders was lower in persons consuming more green tea. Additionally, a study conducted in China among subjects aged over 65 years revealed a negative correlation between consumption of green tea and incidence of cognitive disorders [181]. Similar results were reported in Norway [182] and Singapore [183].…”

Section: Antioxidative Therapies In Neurodegenerative Diseases-clinicsupporting

confidence: 61%

The Role of Dietary Antioxidants in the Pathogenesis of Neurodegenerative Diseases and Their Impact on Cerebral Oxidoreductive Balance

et al. 2020

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Neurodegenerative diseases are progressive diseases of the nervous system that lead to neuron loss or functional disorders. Neurodegenerative diseases require long-term, sometimes life-long pharmacological treatment, which increases the risk of adverse effects and a negative impact of pharmaceuticals on the patients' general condition. One of the main problems related to the treatment of this type of condition is the limited ability to deliver drugs to the brain due to their poor solubility, low bioavailability, and the effects of the blood-brain barrier. Given the above, one of the main objectives of contemporary scientific research focuses on the prevention of neurodegenerative diseases. As disorders related to the competence of the antioxidative system are a marker in all diseases of this type, the primary prophylactics should entail the use of exogenous antioxidants, particularly ones that can be used over extended periods, regardless of the patient's age, and that are easily available, e.g., as part of a diet or as diet supplements. The paper analyzes the significance of the oxidoreductive balance in the pathogenesis of neurodegenerative diseases. Based on information published globally in the last 10 years, an analysis is also provided with regard to the impact of exogenous antioxidants on brain functions with respect to the prevention of this type of diseases.

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Section: Antioxidative Therapies In Neurodegenerative Diseases-clinicsupporting

confidence: 61%

The Role of Dietary Antioxidants in the Pathogenesis of Neurodegenerative Diseases and Their Impact on Cerebral Oxidoreductive Balance

et al. 2020

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“…Other studies reported by Nurk et al in Norway and Feng et al in Singapore also demonstrated similar associations [ 71 , 72 ]. Recently, Gu et al reported the same trend in a Chinese population aged ≥60 years [ 73 ]. However, one study resulted in no significant association between green tea consumption and cognitive impairment [ 74 ], and another study showed sex differences within the effects [ 75 ].…”

Section: Clinical Studies On Catechins and Admentioning

confidence: 59%

Effects of Tea Catechins on Alzheimer’s Disease: Recent Updates and Perspectives

et al. 2018

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Alzheimer’s disease (AD) is one of the most common neurodegenerative disorders worldwide. Its incidence is gradually increasing because of an aging demographic. Therefore, AD prevention and modification is important to improve the health status of older adults. Oxidative stress is a component of the pathological mechanisms underlying AD. It is caused by a disruption of the balance between reactive oxygen species and antioxidant molecules. This imbalance also causes neuroinflammation. Catechins, which are bioactive components of tea, have antioxidative and anti-inflammatory effects. Moreover, other potential properties related to AD prevention and modification have been reported in in vitro and in vivo studies. Several clinical studies have also been conducted to date. The current review summarizes recent updates and perspectives of the effects of catechins on AD based on the molecular mechanisms and related clinical studies.

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“…In fact, many researchers failed to report on the physical and social health that is linked with cognitive decline during the follow-up period [7][8][9][10]. However, the association between smoking and cognitive decline is still in the debate and controversial [8,9]. Therefore, the present study aim at the prospective study of the elderly Chinese Community population to assess the association between alcohol consumption and smoking and cognitive decline during a 6 year study period.…”

Section: ------------------------------------------------------------mentioning

confidence: 95%

“…Although many studies have reported on the health effects related to smoking and alcohol consumption and its association with cognitive decline, several studies lack to focus and report on the gender differences [7][8][9]. In fact, many researchers failed to report on the physical and social health that is linked with cognitive decline during the follow-up period [7][8][9][10]. However, the association between smoking and cognitive decline is still in the debate and controversial [8,9].…”

Section: ------------------------------------------------------------mentioning

confidence: 99%

Gender-based clinical study on the association of cognitive impairment with drinking and smoking

Fu¹,

Chen²,

Zhang³

et al. 2018

Trop. J. Pharm Res

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Purpose: To evaluate the relationship between alcohol consumption and cigarette smoking among the elderly population of a Chinese city with a risk of developing cognitive decline and dementia. Methods: In this study, 1687 participants from the suburban town of Yanliang in Xi'an Sub-province, Shanxi Province, China in the age group of 60-65 years and who have not develop cognitive decline were assessed over a 6-year period. The study involved the evaluation of gender-based effect on alcohol consumption and smoking cigarette and its impact on cognitive functions. Results: The study observed that smokers have a higher risk of cognitive decline than non-smokers (odds ratio = 1.51; 95 % CI = (1.07-2.11). Interestingly, the odds ratio of the smokers among the female subjects was 1.54; 95 % CI (1.02-2.49) compared to female non-smokers. Moreover, a dosedependent relationship was observed for those female smoker with higher pack-years compared to nonsmokers (p = 0.003). On the other hand, regular alcohol consumption also increased the possibility of dementia and cognitive decline (odds ratio = 1.69; CI at 95 % = (1.03-2.75), hence a dose-dependent relationship was observed between male users (p = 0.042). Conclusion: The results suggest that alcohol consumption and smoking are linked with cognitive decline among the female subjects in the age group of 60-65 years. Thus, the relationship between these factors is characterized by gender difference which may be due to female sex hormones.

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Tea consumption is associated with cognitive impairment in older Chinese adults

Abstract: Habitual tea consumption is suggested to be associated with a decreased risk of CoI among elders in Suzhou, and a higher frequency of tea consumption was associated with a lower prevalence of CoI among never smokers.

Cited by 30 publications

References 42 publications

The Role of Dietary Antioxidants in the Pathogenesis of Neurodegenerative Diseases and Their Impact on Cerebral Oxidoreductive Balance

The Role of Dietary Antioxidants in the Pathogenesis of Neurodegenerative Diseases and Their Impact on Cerebral Oxidoreductive Balance

Effects of Tea Catechins on Alzheimer’s Disease: Recent Updates and Perspectives

Gender-based clinical study on the association of cognitive impairment with drinking and smoking

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