Background: Coffee and green tea, two popular drinks in the Japanese, have recently drawn much attention as potential protective factors against the occurrence of liver cancer.
Methods: We systematically reviewed epidemiologic studies on coffee, green tea and liver cancer among Japanese populations. Original data were obtained by searching the MEDLINE (PubMed) and Ichushi databases, complemented with manual searches. The evaluation was performed in terms of the magnitude of association in each study and the strength of evidence ('convincing', 'probable', 'possible', or 'insufficient'), together with biological plausibility.
Results: We identified four cohort and four case-control studies on coffee and liver cancer and six cohort and one case-control studies on green tea and liver cancer. All cohort and case-control studies on coffee reported a weak to strong inverse association, with a summary relative risk (RR) for one cup increase being 0.72 (95% confidence interval [CI] 0.66-0.79). Conversely, all studies but two cohort studies on green tea reported no association, with a corresponding summary RR of 0.99 (95% CI 0.97-1.01, P = 0.37).
Conclusion: Coffee drinking 'probably' decreases the risk of primary liver cancer among the Japanese population whereas the evidence on an association between green tea and liver cancer is 'insufficient' in this population.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/jjco/hyz097 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Appearance of green tea compounds in plasma following acute green tea consumption is modulated by the gut microbiome in mice.
Microbiol Spectr
January 2025
Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA.
Unlabelled: Studies have suggested that phytochemicals in green tea have systemic anti-inflammatory and neuroprotective effects. However, the mechanisms behind these effects are poorly understood, possibly due to the differential metabolism of phytochemicals resulting from variations in gut microbiome composition. To unravel this complex relationship, our team utilized a novel combined microbiome analysis and metabolomics approach applied to low complexity microbiome (LCM) and human colonized (HU) gnotobiotic mice treated with an acute dose of powdered matcha green tea.
View Article and Find Full Text PDFEfficacy of Methylene Blue Thoracic Paravertebral Block in Postoperative Pain After VATS Lobectomy.
Ann Thorac Surg Short Rep
June 2024
Thoracic Surgery Unit, University of Campania Luigi Vanvitelli, Naples, Italy.
Background: Paravertebral block (PVB) is effective in controlling postoperative pain after video-assisted thoracoscopic surgery (VATS) lobectomy but is subject to a high rate of failure because of incorrect site of injection. We compared methylene blue PVB with thoracic epidural anesthesia (TEA) for postoperative pain after VATS lobectomy.
Methods: We conducted a prospective randomized trial of patients undergoing VATS lobectomy; 120 patients were randomly assigned to the PVB or TEA group.
Crucial Role of Aluminium-Regulated Flavonol Glycosides (F2-Type) Biosynthesis in Lateral Root Formation of Camellia sinensis.
Plant Cell Environ
January 2025
State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China.
In acidic soil conditions, aluminium (Al) limits crop growth and yields but benefits the growth of tea plants. Flavonols are suggested to form complexes with Al, enhancing Al accumulation in tea plants. The role of flavonols in promoting lateral root formation under Al stress remains unclear.
View Article and Find Full Text PDFMuslim Religious Officials Have Less Voice Training and Higher Rate of Voice Disorder Than Christian Religious Officials.
J Voice
January 2025
Voicest Clinic, Istanbul, Turkiye.
Purpose: To compare the Voice Handicap Index-10 Scores, voice hygiene habits, and voice training of Christian and Muslim religious officials living in Turkiye.
Method: In this study, a mixed method, including quantitative and qualitative research, was used. The population of the research consists of Christian and Muslim religious officials working in Turkiye.
Improving flavor of Wuyi rock tea processed from rain-soaked leaves by optimizing withering conditions.
Food Chem
January 2025
Anxi College of Tea Science, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Tea Green Cultivation and Processing Collaborative Innovation Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China. Electronic address:
Rainy weather restricts the formation of high-quality Wuyi rock tea (WRT). Herein, an optimized withering process for rain-soaked leaves was developed using response surface methodology. Results showed that increasing the withering temperature, relative humidity, and withering time from 25 °C to 40 °C, 80 % to 97 %, and 3 to 6 h, respectively, effectively improved the sensory qualities of the optimized primary WRT (WRTO) prepared from rain-soaked leaves compared with those before optimization.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!