Impact of internal metal ions in tea polysaccharides on antioxidant potential and suppression of cancer cell growth
Fitoterapia. 2023 Dec 20:105786. doi: 10.1016/j.fitote.2023.105786. Online ahead of print.ABSTRACTFour kinds of tea polysaccharides (MBTPS, MGTPS, ZBTPS, ZGTPS) were extracted from Maofeng black tea, Maofeng green tea,Ziyan black tea and Ziyan green tea, and then four tea polysaccharides (RMBTPS, RMGTPS, RZBTPS, RZGTPS) after metal removal were prepared. The physicochemical properties, antioxidant activity and inhibitory activity on cancer cell proliferation of the above polysaccharides were studied. The composition analysis shows that these tea polysaccharides were glycoproteins complexes, composed of a variety of monosac...
Source: Fitoterapia - December 22, 2023 Category: Biochemistry Authors: Gang Xiang Huaping Sun Qian Tang Aimin Wu Shengxiang Chen Jiali Mao Changfang Lu Xianxiang Wang Source Type: research
Impact of internal metal ions in tea polysaccharides on antioxidant potential and suppression of cancer cell growth
Fitoterapia. 2023 Dec 20:105786. doi: 10.1016/j.fitote.2023.105786. Online ahead of print.ABSTRACTFour kinds of tea polysaccharides (MBTPS, MGTPS, ZBTPS, ZGTPS) were extracted from Maofeng black tea, Maofeng green tea,Ziyan black tea and Ziyan green tea, and then four tea polysaccharides (RMBTPS, RMGTPS, RZBTPS, RZGTPS) after metal removal were prepared. The physicochemical properties, antioxidant activity and inhibitory activity on cancer cell proliferation of the above polysaccharides were studied. The composition analysis shows that these tea polysaccharides were glycoproteins complexes, composed of a variety of monosac...
Source: Fitoterapia - December 22, 2023 Category: Biochemistry Authors: Gang Xiang Huaping Sun Qian Tang Aimin Wu Shengxiang Chen Jiali Mao Changfang Lu Xianxiang Wang Source Type: research
Skin-protective biological activities of bio-fermented Aframomum angustifolium extract by a consortium of microorganisms
Conclusion: In summary, our findings indicated that BAA extract treatments have pleiotropic beneficial effects on skin equivalents and that the bio-fermentation provides new biological activities to this plant. (Source: Frontiers in Pharmacology)
Source: Frontiers in Pharmacology - December 21, 2023 Category: Drugs & Pharmacology Source Type: research
Metabolic improvements of novel microbial fermentation on black tea by Eurotium cristatum
In conclusion, the changes in metabolites observed during the fermentation of black tea by “golden flower” fungi are beneficial to human health. This conclusion extends the knowledge of the interaction between the “golden flower” fungi and black tea, and it provides important information for improving the quality of black tea. (Source: Frontiers in Microbiology)
Source: Frontiers in Microbiology - December 12, 2023 Category: Microbiology Source Type: research
Mental Health Conditions, Including Depression and Stress, Are Associated with Increased Odds of Gastric Cancer-Insights into the Role of Diet: A Case-Control Study
Nutrients. 2023 Nov 30;15(23):4981. doi: 10.3390/nu15234981.ABSTRACTSeveral risk factors, including nutritional/lifestyle ones, play a role in gastric cancer etiology. Further interactions with mental health have also been emphasized. We hypothesized that individuals with mental disorders would exhibit compromised nutrient intake, increasing their risk of gastric cancer. The state of mental health was evaluated in 82 patients with gastric cancer and 95 healthy controls using the 21-item Depression-Anxiety-Stress Scale. The participants' dietary intakes were evaluated by a 168-item food frequency questionnaire. Based on ful...
Source: Cancer Control - December 9, 2023 Category: Cancer & Oncology Authors: Farhad Vahid Wena Rahmani Sayed Hossein Davoodi Torsten Bohn Source Type: research
The Antiobesity Effects and Potential Mechanisms of < em > Theaflavins < /em >
J Med Food. 2023 Dec 7. doi: 10.1089/jmf.2023.K.0180. Online ahead of print.ABSTRACTTheaflavins are the characteristic polyphenols in black tea which can be enzymatically synthesized. In this review, the effects and molecular mechanisms of theaflavins on obesity and its comorbidities, including dyslipidemia, insulin resistance, hepatic steatosis, and atherosclerosis, were summarized. Theaflavins ameliorate obesity potentially via reducing food intake, inhibiting pancreatic lipase to reduce lipid absorption, activating the adenosine monophosphate-activated protein kinase (AMPK), and regulating the gut microbiota. As to the ...
Source: Atherosclerosis - December 7, 2023 Category: Cardiology Authors: Yi Fang Jun Wang Yu Cao Wenrui Liu Lianxiang Duan Jing Hu Jinghua Peng Source Type: research
Evaluation of the Antimicrobial Activity of Phytochemicals from Tea and Agarwood Leaf Extracts against Isolated Bacteria from Poultry and Curd
In this study, tea and agarwood leaf extracts were analyzed for their antimicrobial activity against both pathogenic and beneficial bacteria. Fresh tea (Camellia sinensis) leaves were collected in three varieties, namely, BT-6 from Sylhet, BT-7 from Moulvibazar, and BT-8 from Habiganj; also, green tea (nonfermented tea), black tea (fully fermented tea), and agarwood (Aquilaria malaccensis) were collected from Sylhet region of Bangladesh. Unlike commercial antibiotics, which have side effects on probiotics (beneficiary bacteria), leaf extract activities were analyzed to check if they had positive effects on probiotics that ...
Source: The Scientific World Journal - November 29, 2023 Category: Science Authors: Shah Rucksana Akhter Urme Syeda Fahmida Ahmed Mohammed Mostafa Al Quadir Mst Rubaiat Nazneen Akhand Mohammad Mehedi Hasan Khan Source Type: research
Molecules, Vol. 28, Pages 7775: Azorean Black Tea (Camellia sinensis) Antidermatophytic and Fungicidal Properties
a Gonçalves
The treatment of dermatophytoses, the most common human fungal infections, requires new alternatives. The aim of this study was to determine the antidermatophytic activity of the aqueous Azorean Black Tea extract (ABT), together with an approach to the mechanisms of action. The phytochemical analysis of ABT extract was performed by HPLC. The dermatophytes susceptibility was assessed using a broth microdilution assay; potential synergies with terbinafine and griseofulvin were evaluated by the checkerboard assay. The mechanism of action was appraised by the quantification of the fungal cell wall chitin and &...
Source: Molecules - November 25, 2023 Category: Chemistry Authors: Chantal Fernandes Jos é Sousa-Baptista Ana Filipa Lenha-Silva Daniela Calheiros Edmilson Correia Artur Figueirinha L ígia Salgueiro Teresa Gon çalves Tags: Article Source Type: research
The Effects of Black Tea Consumption on Intestinal Microflora-A Randomized Single-Blind Parallel-Group, Placebo-Controlled Study
In conclusion, our results suggest that improvement of mucosal immunity via an increase in butyrate-producing bacteria in the gut may partly contribute to the suppressive effect of black tea consumption on acute upper respiratory tract inflammation observed in our previous report.PMID:37940573 | DOI:10.3177/jnsv.69.326 (Source: Journal of Nutritional Science and Vitaminology)
Source: Journal of Nutritional Science and Vitaminology - November 8, 2023 Category: Nutrition Authors: Reno Tomioka Yuko Tanaka Masayuki Suzuki Shukuko Ebihara Source Type: research
