The hepatoprotective effects of Herbt Tea Essences on phenanthrene-induced liver damage in mice
Ecotoxicol Environ Saf. 2023 Apr 13;256:114899. doi: 10.1016/j.ecoenv.2023.114899. Online ahead of print.ABSTRACTPhenanthrene (Phe), one of the most frequently occurring pollutants in nature, can cause substantial damage to the human liver. Herbt Tea Essences (HTE), a kind of black tea extract with strong anti-inflammatory activity, can protect humans against disease. Currently, whether HTE can protect the liver from Phe-induced hepatotoxicity remains unclear. Herein, we explore the protective effects of HTE against Phe-induced hepatotoxicity. Our results showed that Phe exposure could significantly induce liver damage and...
Source: Ecotoxicology and Environmental Safety - April 15, 2023 Category: Environmental Health Authors: Lingxiao Ye Xiaoyan Ding Changqian Liu Fengkai Ruan Hongbin Zhong Rongfu Lv Yi Yu Chengyong He Zhenghong Zuo Jiyi Huang Source Type: research
The hepatoprotective effects of Herbt Tea Essences on phenanthrene-induced liver damage in mice
Ecotoxicol Environ Saf. 2023 Apr 13;256:114899. doi: 10.1016/j.ecoenv.2023.114899. Online ahead of print.ABSTRACTPhenanthrene (Phe), one of the most frequently occurring pollutants in nature, can cause substantial damage to the human liver. Herbt Tea Essences (HTE), a kind of black tea extract with strong anti-inflammatory activity, can protect humans against disease. Currently, whether HTE can protect the liver from Phe-induced hepatotoxicity remains unclear. Herein, we explore the protective effects of HTE against Phe-induced hepatotoxicity. Our results showed that Phe exposure could significantly induce liver damage and...
Source: Ecotoxicology and Environmental Safety - April 15, 2023 Category: Environmental Health Authors: Lingxiao Ye Xiaoyan Ding Changqian Liu Fengkai Ruan Hongbin Zhong Rongfu Lv Yi Yu Chengyong He Zhenghong Zuo Jiyi Huang Source Type: research
Genes cloning, sequencing and function identification of recombinant polyphenol oxidase isozymes for production of monomeric theaflavins from Camellia sinensis
Int J Biol Macromol. 2023 Apr 12:124353. doi: 10.1016/j.ijbiomac.2023.124353. Online ahead of print.ABSTRACTTheaflavins (TFs) are important quality compounds in black tea with a variety of biological activities. However, direct extraction of TFs from black tea is inefficient and costly. Therefore, we cloned two PPO isozymes from Huangjinya tea, termed HjyPPO1 and HjyPPO3. Both isozymes oxidized corresponding catechin substrates for the formation of four TFs (TF1, TF2A, TF2B, TF3), and the optimal catechol-type catechin to pyrogallol-type catechin oxidation rate of both isozymes was 1:2. In particular, the oxidation efficie...
Source: International Journal of Biological Macromolecules - April 14, 2023 Category: Biochemistry Authors: Hongli Cai Zhuoheng Zhong Yiran Chen Shuyao Zhang Hao Ling Hongwei Fu Lin Zhang Source Type: research
Genes cloning, sequencing and function identification of recombinant polyphenol oxidase isozymes for production of monomeric theaflavins from Camellia sinensis
Int J Biol Macromol. 2023 Apr 12;240:124353. doi: 10.1016/j.ijbiomac.2023.124353. Online ahead of print.ABSTRACTTheaflavins (TFs) are important quality compounds in black tea with a variety of biological activities. However, direct extraction of TFs from black tea is inefficient and costly. Therefore, we cloned two PPO isozymes from Huangjinya tea, termed HjyPPO1 and HjyPPO3. Both isozymes oxidized corresponding catechin substrates for the formation of four TFs (TF1, TF2A, TF2B, TF3), and the optimal catechol-type catechin to pyrogallol-type catechin oxidation rate of both isozymes was 1:2. In particular, the oxidation eff...
Source: International Journal of Biological Macromolecules - April 14, 2023 Category: Biochemistry Authors: Hongli Cai Zhuoheng Zhong Yiran Chen Shuyao Zhang Hao Ling Hongwei Fu Lin Zhang Source Type: research
Black Tea Extract, via Modulation of TGF- β Pathway, Prevents Inorganic Arsenic-induced Development of Squamous Cell Carcinoma of the Skin in Swiss Albino Mice
J Cancer Prev. 2023 Mar 30;28(1):12-23. doi: 10.15430/JCP.2023.28.1.12.ABSTRACTChronic exposure to inorganic arsenic (iAs) elevates reactive oxygen species (ROS) generation and up-regulates TGF-β signalling. This promotes induction of epithelial to mesenchymal transition (EMT) and causes the development of squamous cell carcinoma (SCC) of skin. Black tea is a popular beverage worldwide and an effective antioxidant. Chemopreventive potential of black tea extract (BTE) against iAs induced carcinogenicity has been explored here. The study aims to investigate the role of BTE in prevention of iAs-induced SCC of skin in Swiss a...
Source: Cancer Control - April 10, 2023 Category: Cancer & Oncology Authors: Archismaan Ghosh Madhumita Roy Source Type: research
A case-control study of drinking beverages and the risk of multiple sclerosis in Iran
CONCLUSION: The results show that drinking black and green tea, non-alcoholic beer, and coffee are associated with a decrease in the chance of developing MS. The results of this study can be used to design interventional research and to change people's lifestyles to prevent MS.PMID:36959679 | DOI:10.1186/s41043-023-00364-8 (Source: Journal of Health, Population, and Nutrition)
Source: Journal of Health, Population, and Nutrition - March 24, 2023 Category: International Medicine & Public Health Authors: Maryam Dastoorpoor Seyed Massood Nabavi Nastaran Majdinasab Ahmad Zare Javid Kambiz Ahmadi Angali Maryam Seyedtabib Source Type: research
A case-control study of drinking beverages and the risk of multiple sclerosis in Iran
CONCLUSION: The results show that drinking black and green tea, non-alcoholic beer, and coffee are associated with a decrease in the chance of developing MS. The results of this study can be used to design interventional research and to change people's lifestyles to prevent MS.PMID:36959679 | PMC:PMC10037787 | DOI:10.1186/s41043-023-00364-8 (Source: Journal of Health, Population, and Nutrition)
Source: Journal of Health, Population, and Nutrition - March 24, 2023 Category: International Medicine & Public Health Authors: Maryam Dastoorpoor Seyed Massood Nabavi Nastaran Majdinasab Ahmad Zare Javid Kambiz Ahmadi Angali Maryam Seyedtabib Source Type: research
Monitoring and evaluating the dietary risk of trace elements content in bottled and hand-shaken tea in Taiwan
This study aimed to determine the level of trace elements (V, Cr, Co, As, Cd, Pb, Mn, and Zn) in green tea, black tea, and Oolong tea in two varieties of products (bottled and hand-shaken tea). The health risks associated with tea consumption in various age subgroups among Taiwan's general population were also estimated. A Monte Carlo simulation was applied to estimate the distribution of daily trace elements intake through bottled and hand-shaken tea consumption. As to the non-carcinogenic risks, the Monte Carlo simulation showed that hand-shaken green tea had a higher percentage of hazard index (HI) >1 (1.08%~6.05%) a...
Source: Environmental Science and Pollution Research International - March 10, 2023 Category: Environmental Health Authors: Wei-Shan Chin Ling-Chu Chien Ho-Ching Kao Yung-Ning Chuang Kai-Wei Liao Source Type: research
Suppressive effect of black tea polyphenol theaflavins in a mouse model of ovalbumin-induced food allergy
In this study, we designed a mouse model of food allergy and examined the effect of theaflavins using the severity of diarrhea, a symptom of food allergy, as an indicator. The administration of a black tea extract rich in theaflavins or theaflavin 1 (subgroup of theaflavins) to mice reduced the severity of diarrhea when compared with a normal diet. A reduction in malondialdehyde levels, a key marker of lipid peroxidation, was also observed. Overall, these data suggest that theaflavins may potentially inhibit food allergy by alleviating oxidative stress in the colon and can be a potential food material for prevention of foo...
Source: Journal of Natural Medicines - March 1, 2023 Category: Drugs & Pharmacology Source Type: research
Complexation between rice starch and cellulose nanocrystal from black tea residues: Gelatinization properties and digestibility in vitro
This study further expanded the understanding of the interactions between CNC and starch during processing, which could provide a reference for the application of CNC in starch-based foods and the development of functional foods with a low glycemic index.PMID:36801275 | DOI:10.1016/j.ijbiomac.2023.123695 (Source: International Journal of Biological Macromolecules)
Source: International Journal of Biological Macromolecules - February 21, 2023 Category: Biochemistry Authors: Huajian Xu Zongwei Hao Junwei Gao Qianxin Zhou Weixiao Li Xiangxin Liao Mingming Zheng Yibin Zhou Zhenyu Yu Chuankui Song Yaqing Xiao Source Type: research
Improved charge-transfer resonance in graphene oxide/ZrO < sub > 2 < /sub > substrates for plasmonic-free SERS determination of methyl parathion
Chemosphere. 2023 Feb 7:138081. doi: 10.1016/j.chemosphere.2023.138081. Online ahead of print.ABSTRACTThis work reports a sensitive SERS substrate based on graphene oxide (GO) and quantum-sized ZrO2 nanoparticles (GO/ZrO2) for label-free determination of the organophosphate pesticide methyl parathion (MP). The enhanced light-matter interactions and the consequent SERS effect in these substrates resulted from the effective charge transfer (CT) mechanism attributed to synergistic contributions of three main factors: i) the strong molecular adherence of the MP molecules and the ZrO2 surface which allows the first layer-effect...
Source: Chemosphere - February 9, 2023 Category: Chemistry Authors: Marlene Vargas-Zamarripa Aura A Rivera Uriel Sierra Pedro Salas Alma H Seraf ín-Muñoz Gonzalo Ram írez-García Source Type: research
Improved charge-transfer resonance in graphene oxide/ZrO < sub > 2 < /sub > substrates for plasmonic-free SERS determination of methyl parathion
Chemosphere. 2023 Feb 7:138081. doi: 10.1016/j.chemosphere.2023.138081. Online ahead of print.ABSTRACTThis work reports a sensitive SERS substrate based on graphene oxide (GO) and quantum-sized ZrO2 nanoparticles (GO/ZrO2) for label-free determination of the organophosphate pesticide methyl parathion (MP). The enhanced light-matter interactions and the consequent SERS effect in these substrates resulted from the effective charge transfer (CT) mechanism attributed to synergistic contributions of three main factors: i) the strong molecular adherence of the MP molecules and the ZrO2 surface which allows the first layer-effect...
Source: Chemosphere - February 9, 2023 Category: Chemistry Authors: Marlene Vargas-Zamarripa Aura A Rivera Uriel Sierra Pedro Salas Alma H Seraf ín-Muñoz Gonzalo Ram írez-García Source Type: research
Improved charge-transfer resonance in graphene oxide/ZrO < sub > 2 < /sub > substrates for plasmonic-free SERS determination of methyl parathion
Chemosphere. 2023 Feb 7:138081. doi: 10.1016/j.chemosphere.2023.138081. Online ahead of print.ABSTRACTThis work reports a sensitive SERS substrate based on graphene oxide (GO) and quantum-sized ZrO2 nanoparticles (GO/ZrO2) for label-free determination of the organophosphate pesticide methyl parathion (MP). The enhanced light-matter interactions and the consequent SERS effect in these substrates resulted from the effective charge transfer (CT) mechanism attributed to synergistic contributions of three main factors: i) the strong molecular adherence of the MP molecules and the ZrO2 surface which allows the first layer-effect...
Source: Chemosphere - February 9, 2023 Category: Chemistry Authors: Marlene Vargas-Zamarripa Aura A Rivera Uriel Sierra Pedro Salas Alma H Seraf ín-Muñoz Gonzalo Ram írez-García Source Type: research
Improved charge-transfer resonance in graphene oxide/ZrO < sub > 2 < /sub > substrates for plasmonic-free SERS determination of methyl parathion
Chemosphere. 2023 Feb 7:138081. doi: 10.1016/j.chemosphere.2023.138081. Online ahead of print.ABSTRACTThis work reports a sensitive SERS substrate based on graphene oxide (GO) and quantum-sized ZrO2 nanoparticles (GO/ZrO2) for label-free determination of the organophosphate pesticide methyl parathion (MP). The enhanced light-matter interactions and the consequent SERS effect in these substrates resulted from the effective charge transfer (CT) mechanism attributed to synergistic contributions of three main factors: i) the strong molecular adherence of the MP molecules and the ZrO2 surface which allows the first layer-effect...
Source: Chemosphere - February 9, 2023 Category: Chemistry Authors: Marlene Vargas-Zamarripa Aura A Rivera Uriel Sierra Pedro Salas Alma H Seraf ín-Muñoz Gonzalo Ram írez-García Source Type: research
[ASAP] Theaflavins in Black Tea Mitigate Aging-Associated Cognitive Dysfunction via the Microbiota –Gut–Brain Axis
Journal of Agricultural and Food ChemistryDOI: 10.1021/acs.jafc.2c06679 (Source: Journal of Agricultural and Food Chemistry)
Source: Journal of Agricultural and Food Chemistry - January 31, 2023 Category: Food Science Authors: Maiquan Li, Can Zhang, Xing Xiao, Mingzhi Zhu, Wei Quan, Xia Liu, Sheng Zhang, and Zhonghua Liu Source Type: research
