1
|
Angelotti A, Kowalski C, Johnson LK, Belury MA, Conrad Z. Restricted carbohydrate diets below 45% energy are not associated with risk of mortality in the National Health and Nutrition Examination Survey, 1999-2018. Front Nutr 2024; 11:1225674. [PMID: 38374828 PMCID: PMC10875006 DOI: 10.3389/fnut.2024.1225674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 01/16/2024] [Indexed: 02/21/2024] Open
Abstract
Introduction Cardiometabolic diseases (CMD) are the leading causes of death for people living in the United States. Dietary strategies, such as restricting carbohydrate intake, are becoming popular strategies for improving health status. However, there is limited and often contradictory evidence on whether restricting carbohydrate intake is related to all-cause, CMD, or cardiovascular disease (CVD) mortality. Methods The objective of the present study was to evaluate the association between restricted carbohydrate diets (<45%en) and mortality from all-causes, CMD, and CVD, stratified by fat amount and class. Data were acquired using the National Health and Nutrition Examination Survey (1999-2018) linked with mortality follow-up until December 31, 2019 from the Public-use Linked Mortality Files. Multivariable survey-weighted Cox proportional hazards models estimated hazard ratios for 7,958 adults (≥20 y) that consumed <45%en from carbohydrates and 27,930 adults that consumed 45-65%en from carbohydrates. Results During the study period a total of 3,780 deaths occurred, including 1,048 from CMD and 1,007 from CVD, during a mean follow-up of 10.2 y. Compared to individuals that met carbohydrate recommendations (45-65%en), those that consumed carbohydrate restricted diets (<45%en) did not have significantly altered risk of mortality from all-causes (HR: 0.98; 95% CI: 0.87, 1.11), CMD (1.18; 0.95, 1.46), or CVD (1.20; 0.96, 1.49). These findings were maintained when the restricted carbohydrate diet group was stratified by intake of total fat, saturated fat (SFA), monounsaturated fat (MUFA), and polyunsaturated fat (PUFA). Discussion Carbohydrate restriction (<45%en) was not associated with mortality from all-causes, CVD, or CMD. Greater efforts are needed to characterize the risk of mortality associated with varied degrees of carbohydrate restriction, e.g., low (<26%en) and high (>65%en) carbohydrate diets separately.
Collapse
Affiliation(s)
- Austin Angelotti
- Department of Physiology and Cell Biology, College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Corina Kowalski
- College of Arts and Sciences, Williamsburg, VA, United States
| | | | - Martha A. Belury
- Department of Food Science and Technology, The Ohio State University, Columbus, OH, United States
| | - Zach Conrad
- Department of Kinesiology, Williamsburg, VA, United States
- Global Research Institute, Williamsburg, VA, United States
| |
Collapse
|
2
|
Chen X, Wang S, Farag MA, Han Z, Chen D, Zhang X, Si J, Wu L. Interactions between endophytic fungus Pestalotiopsis sp. DO14 and Dendrobium catenatum: Deciphering plant polysaccharide and flavonoid accumulation and underlying mechanisms by comparative transcriptome and metabolome analyses. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 202:107942. [PMID: 37562204 DOI: 10.1016/j.plaphy.2023.107942] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 07/11/2023] [Accepted: 08/04/2023] [Indexed: 08/12/2023]
Abstract
Dendrobium catenatum, which belongs to the Orchidaceae family, has been used as a traditional medicine and healthy food in China for over 2000 years, and is of enormous economic value. Polysaccharides and flavonoids are two major functional ingredients in D. catenatum stems that contribute to its health benefits. D. catenatum lives in close association with endophytic fungi, but the literature regarding the further relations between them, especially the fungal-induced accumulation of metabolites in the host plant, is sparse. Our previous study showed that Pestalotiopsis sp. DO14 isolated from D. catenatum improved the host plant growth and metabolite accumulation. This study was performed to investigate dynamic variations of the growth traits, key metabolites (polysaccharides and flavonoids), and expression of key genes of D. catenatum under conditions of the DO14 colonization. Colonization with DO14 promoted D. catenatum growth as indicated by increased leaf area, mid-stem thickness, and plant height. The content of polysaccharides, mannose, and sucrose increased even without DO14 entering the host cells or forming a mature symbiotic relationship concurrent with improved photosynthesis rate. Furthermore, DO14 induced upregulation of genes involved in sugar and flavonoid metabolism, especially phosphoenolpyruvate carboxykinase (PCKA), chalcone synthase (CHS) and UDP-glycose flavonoid glycosyltransferase (UFGT). These observations suggested that endophytic fungi induce the accumulation of polysaccharides and flavonoids by plants, increasing the efficiency of carbon assimilation and carbon turnover. The findings of this study provide insight into the mechanisms underlying Orchidaceae-endophyte interactions, and suggest potential novel applications of endophytic fungi in D. catenatum breeding to improved plant quality.
Collapse
Affiliation(s)
- Xueliang Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China
| | - Shuyuan Wang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China
| | - Mohamed A Farag
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, 11562, Egypt
| | - Zhigang Han
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China
| | - Donghong Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China
| | - Xinfeng Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China
| | - Jinping Si
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China
| | - Lingshang Wu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China.
| |
Collapse
|
3
|
Qi L, Shi Y, Li C, Liu J, Chong SL, Lim KJ, Si J, Han Z, Chen D. Glucomannan in Dendrobium catenatum: Bioactivities, Biosynthesis and Perspective. Genes (Basel) 2022; 13:1957. [PMID: 36360194 PMCID: PMC9690530 DOI: 10.3390/genes13111957] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 07/13/2024] Open
Abstract
Dendrobium catenatum is a classical and precious dual-use plant for both medicine and food in China. It was first recorded in Shen Nong's Herbal Classic, and has the traditional functions of nourishing yin, antipyresis, tonifying the stomach, and promoting fluid production. The stem is its medicinal part and is rich in active polysaccharide glucomannan. As an excellent dietary fiber, glucomannan has been experimentally confirmed to be involved in anti-cancer, enhancing immunity, lowering blood sugar and blood lipids, etc. Here, the status quo of the D. catenatum industry, the structure, bioactivities, biosynthesis pathway and key genes of glucomannan are systematically described to provide a crucial foundation and theoretical basis for understanding the value of D. catenatum and the potential application of glucomannan in crop biofortification.
Collapse
Affiliation(s)
- Luyan Qi
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
| | - Yan Shi
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
| | - Cong Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
- National Innovation Alliance of Dendrobium catenatum Industry, Engineering Technology Research Center of Dendrobium catenatum of National Forestry and Grassland Administration, Hangzhou 311300, China
| | - Jingjing Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
- National Innovation Alliance of Dendrobium catenatum Industry, Engineering Technology Research Center of Dendrobium catenatum of National Forestry and Grassland Administration, Hangzhou 311300, China
| | - Sun-Li Chong
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
| | - Kean-Jin Lim
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
| | - Jinping Si
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
- National Innovation Alliance of Dendrobium catenatum Industry, Engineering Technology Research Center of Dendrobium catenatum of National Forestry and Grassland Administration, Hangzhou 311300, China
| | - Zhigang Han
- National Innovation Alliance of Dendrobium catenatum Industry, Engineering Technology Research Center of Dendrobium catenatum of National Forestry and Grassland Administration, Hangzhou 311300, China
| | - Donghong Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin’an, Hangzhou 311300, China
| |
Collapse
|
4
|
Guo X, Yang M, Wang C, Nie S, Cui SW, Guo Q. Acetyl-glucomannan from Dendrobium officinale: Structural modification and immunomodulatory activities. Front Nutr 2022; 9:1016961. [PMID: 36245489 PMCID: PMC9558108 DOI: 10.3389/fnut.2022.1016961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/16/2022] [Indexed: 11/13/2022] Open
Abstract
To understand the mechanisms of immunomodulatory effect, Dendrobium Officinale polysaccharides (DOP) were treated by ultrasound and mild base separately to generate fractions of various weight-average molecular weight (Mw) and degrees of acetylation (DA). The structural features, conformational properties, functional properties and immunomodulatory activities of original and modified DOPs were investigated. Ultrasonic treatment decreased the Mw and apparent viscosity and improved the water solubility of DOP. Mild base treatment remarkably reduced the DA and the water solubility, while the overall apparent viscosity was increased. Conformational analysis by triple-detector high performance size-exclusion chromatography showed that the molecular chain of DOP turned more compact coil conformation with decreased DA. Results from the macrophages RAW 264.7 analysis showed that samples sonicated for 200 min (Mw 34.2 kDa) showed the highest immune-regulation effects. However, the immunomodulatory effects of the samples after de-acetylation were all compromised compared to the original DOP. This study inspires further research to establish the structural-immunomodulatory relationships, which promote the application of DOP in both the food and medicine fields.
Collapse
Affiliation(s)
- Xiaoyu Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Technology, Tianjin University of Science and Technology, Tianjin, China
| | - Mingguan Yang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Changlu Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Technology, Tianjin University of Science and Technology, Tianjin, China
| | - Shaoping Nie
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Nanchang University, Nanchang, China
- Shaoping Nie,
| | - Steve W. Cui
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
| | - Qingbin Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Technology, Tianjin University of Science and Technology, Tianjin, China
- *Correspondence: Qingbin Guo,
| |
Collapse
|
5
|
He Y, Li L, Chang H, Cai B, Gao H, Chen G, Hou W, Jappar Z, Yan Y. Research progress on extraction, purification, structure and biological activity of Dendrobium officinale polysaccharides. Front Nutr 2022; 9:965073. [PMID: 35923195 PMCID: PMC9339781 DOI: 10.3389/fnut.2022.965073] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 06/30/2022] [Indexed: 12/28/2022] Open
Abstract
Dendrobium officinale Kimura et Migo (D. officinale) is a traditional medicinal and food homologous plant that has been used for thousands of years in folk medicine and nutritious food. Recent studies have shown that polysaccharide is one of the main biologically active components in D. officinale. D. officinale polysaccharides possess several biological activities, such as anti-oxidant, heptatoprotective, immunomodulatory, gastrointestinal protection, hypoglycemic, and anti-tumor activities. In the past decade, polysaccharides have been isolated from D. officinale by physical and enzymatic methods and have been subjected to structural characterization and activity studies. Progress in extraction, purification, structural characterization, bioactivity, structure-activity relationship, and possible bioactivity mechanism of polysaccharides D. officinale were reviewed. In order to provide reference for the in-depth study of D. officinale polysaccharides and the application in functional food and biomedical research.
Collapse
Affiliation(s)
- Yuan He
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Lin Li
- College of Life Sciences, Zhengzhou Normal University, Zhengzhou, China
- *Correspondence: Lin Li,
| | - Hao Chang
- Cigar Research Institute, Anhui Tobacco Technology Center, Bengbu, China
| | - Bin Cai
- Haikou Cigar Research Institute, Hainan Provincial Branch of CNTC, Haikou, China
| | - Huajun Gao
- Haikou Cigar Research Institute, Hainan Provincial Branch of CNTC, Haikou, China
| | - Guoyu Chen
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Wen Hou
- College of Life Sciences, Zhengzhou Normal University, Zhengzhou, China
| | - Zubaydan Jappar
- College of Life Sciences, Zhengzhou Normal University, Zhengzhou, China
| | - Yizhe Yan
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou, China
- Yizhe Yan,
| |
Collapse
|
6
|
Liu J, Li Y, Chen Y, Si D, Zhang X, Wu S, Zhang L, Si J. Water-soluble non-starch polysaccharides of wild-simulated Dendrobium catenatum Lindley plantings on rocks and bark of pear trees. Food Chem X 2022; 14:100309. [PMID: 35492252 PMCID: PMC9043667 DOI: 10.1016/j.fochx.2022.100309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 04/10/2022] [Accepted: 04/11/2022] [Indexed: 12/05/2022] Open
Abstract
NSPs with antioxidant activity derived from wild-simulated D. catenatum were analyzed. NSP contents depended on the cultured modes and growth periods. Facility cultivation provide best growth condition but produce highest ratio of starch. While wild-simulated cultivation harvest higher ratio of NSPs, especially in September.
The total water-soluble polysaccharide (TP) of Dendrobium catenatum is composed of starch and active non-starch polysaccharides (NSPs) with glucomannan as the main structural type. Although the TP content has been used as a quality assessment indicator for many years, the NSPs content in samples from different environments and growth seasons have not been reported. In this study, we found that NSPs had stronger antioxidant activity than TP. The NSPs content was higher in wild-simulated environments including rocks and trees compared to plantings grown in greenhouse. The culture mode and growth period affected the ratio of NSPs and starch. Facility cultivation provided optimal growth conditions but produced more starch, whereas wild-simulated cultivation resulted in a higher ratio of NSPs, particularly in September. Therefore, cultivation by lithophytation and epiphytation may be preferable to facility plantings, which is expected to be enormously useful for the current production and quality control of D. catenatum.
Collapse
Affiliation(s)
- Jingjing Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Ya Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Yanyun Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Dun Si
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Xinfeng Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Shihua Wu
- Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute, Zhejiang University, Haining 314400, China
| | - Lei Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China.,Department of Pharmaceutical Botany, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.,Biomedical Innovation R&D Center, School of Medicine, Shanghai University, Shanghai 200444, China
| | - Jinping Si
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| |
Collapse
|