1
|
Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2021-2022. MASS SPECTROMETRY REVIEWS 2024. [PMID: 38925550 DOI: 10.1002/mas.21873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/05/2024] [Accepted: 02/12/2024] [Indexed: 06/28/2024]
Abstract
The use of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well-established technique and this review is the 12th update of the original article published in 1999 and brings coverage of the literature to the end of 2022. As with previous review, this review also includes a few papers that describe methods appropriate to analysis by MALDI, such as sample preparation, even though the ionization method is not MALDI. The review follows the same format as previous reviews. It is divided into three sections: (1) general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, quantification and the use of computer software for structural identification. (2) Applications to various structural types such as oligo- and polysaccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals, and (3) other general areas such as medicine, industrial processes, natural products and glycan synthesis where MALDI is extensively used. Much of the material relating to applications is presented in tabular form. MALDI is still an ideal technique for carbohydrate analysis, particularly in its ability to produce single ions from each analyte and advancements in the technique and range of applications show little sign of diminishing.
Collapse
|
2
|
Ooi SL, Pak SC. Editorial: A Feasible Approach for Natural Products to Treatment of Diseases. Molecules 2023; 28:molecules28093791. [PMID: 37175201 PMCID: PMC10180473 DOI: 10.3390/molecules28093791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
The potential of natural products from both plant and animal sources to treat diseases remains enormous, as our understating forms just the tip of the iceberg [...].
Collapse
Affiliation(s)
- Soo Liang Ooi
- School of Dentistry and Medical Sciences, Charles Sturt University, Bathurst, NSW 2795, Australia
| | - Sok Cheon Pak
- School of Dentistry and Medical Sciences, Charles Sturt University, Bathurst, NSW 2795, Australia
| |
Collapse
|
3
|
Hao M, Song J, Zhai X, Cheng N, Xu C, Gui S, Chen J. Improvement of loperamide-hydrochloride-induced intestinal motility disturbance by Platycodon grandiflorum polysaccharides through effects on gut microbes and colonic serotonin. Front Cell Infect Microbiol 2023; 13:1105272. [PMID: 36992686 PMCID: PMC10040651 DOI: 10.3389/fcimb.2023.1105272] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/24/2023] [Indexed: 03/14/2023] Open
Abstract
Constipation is a common gastrointestinal symptom characterized by intestinal motility disorder. The effects of Platycodon grandiflorum polysaccharides (PGP) on intestinal motility have not been confirmed. We established a rat model of constipation induced by loperamide hydrochloride to elucidate the therapeutic effect of PGP on intestinal motility disorder and to explore the possible mechanism. After PGP treatment (400 and 800 mg/kg) for 21 d, PGP clearly relieved gastrointestinal motility, including fecal water content, gastric emptying rate, and intestinal transit rate. Moreover, the secretion of motility-related hormones, gastrin and motilin, were increased. Enzyme-linked immunosorbent assay, western blot, immunohistochemistry, and immunofluorescence results confirmed that PGP significantly increased the secretion of 5-hydroxytryptamine (5-HT) and the expression of related proteins, such as tryptophan hydroxylase 1, 5-HT4 receptor, and transient receptor potential ankyrin 1. 16S rRNA gene sequencing showed that PGP significantly increased the relative abundance of Roseburia, Butyricimonas, and Ruminiclostridium, which were positively correlated with 5-HT levels. However, the relative abundance of Clostridia_UCG-014, Lactobacillus, and Enterococcus were decreased. PGP improved intestinal transport by regulating the levels of 5-HT, which interacts with the gut microbiota and the intestinal neuro-endocrine system, further affecting constipation. Overall, PGP is a potential supplement for the treatment of constipation.
Collapse
Affiliation(s)
- Mengqi Hao
- College of pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Jing Song
- College of pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Xiaohu Zhai
- College of pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Nuo Cheng
- College of pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Cong Xu
- College of pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Shuangying Gui
- College of pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, China
- MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei, Anhui, China
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, Anhui, China
| | - Juan Chen
- College of pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui, China
- MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei, Anhui, China
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, Anhui, China
- *Correspondence: Juan Chen,
| |
Collapse
|
4
|
Liu Y, Kan Y, Huang Y, Jiang C, Zhao L, Hu J, Pang W. Physicochemical Characteristics and Antidiabetic Properties of the Polysaccharides from Pseudostellaria heterophylla. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123719. [PMID: 35744844 PMCID: PMC9227595 DOI: 10.3390/molecules27123719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/05/2022] [Accepted: 06/08/2022] [Indexed: 11/19/2022]
Abstract
This study aimed to investigate the Pseudostellaria heterophylla polysaccharides (PF40) physicochemical and antidiabetic characteristics. The ultraviolet–visible (UV) spectra, Fourier transform infrared radiation (FT-IR) spectra, nuclear magnetic resonance (NMR) spectra, zeta potential, surface characteristics, and conformational and thermal stability properties of PF40 were characterized. X-ray diffraction (XRD) and scanning electron microscopy (SEM), combined with Congo red test, revealed that PF40 powder has mainly existed in amorphous form with triple-helix conformation. The single-molecular structure of PF40 exhibited a multi-branched structure extending from the center to the periphery by scanning probe microscopy (SPM) scanning. The monosaccharide residue of PF40 was an α-pyranoid ring and exhibits good stability below 168 °C. Experimental studies on antidiabetic characteristics found that PF40 could significantly improve STZ-induced intestinal mucosal damage and reduce the apoptosis of villus epithelial cells. PF40 combined with metformin could significantly improve the symptoms of insulin resistance in type 2 diabetes mellitus (T2DM) rats, the molecular mechanism might be through inhibiting the expression of RORγ protein and increasing Foxp3 protein in the jejunum of T2DM rats, and then restoring the STZ-induced imbalance of T helper 17(Th17)/ regulatory T cells (Treg) cells, thereby maintaining intestinal immune homeostasis. Results identified in this study provided important information regarding the structure and antidiabetic characteristics of Pseudostellaria heterophylla polysaccharides, which can contribute to the development of Pseudostellaria heterophylla polysaccharides for industrial purposes in the future.
Collapse
Affiliation(s)
- Yingying Liu
- The Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou 350003, China;
| | - Yongjun Kan
- Institute of Materia, Fujian Academy of Chinese Medical Sciences, Fuzhou 350003, China; (Y.K.); (C.J.); (L.Z.)
| | - Yating Huang
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China;
| | - Chang Jiang
- Institute of Materia, Fujian Academy of Chinese Medical Sciences, Fuzhou 350003, China; (Y.K.); (C.J.); (L.Z.)
| | - Li Zhao
- Institute of Materia, Fujian Academy of Chinese Medical Sciences, Fuzhou 350003, China; (Y.K.); (C.J.); (L.Z.)
| | - Juan Hu
- The Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou 350003, China;
- Institute of Materia, Fujian Academy of Chinese Medical Sciences, Fuzhou 350003, China; (Y.K.); (C.J.); (L.Z.)
- Correspondence: (J.H.); (W.P.); Tel.: +86-591-87878029 (J.H.); Tel.: +86-591-22861135 (W.P.)
| | - Wensheng Pang
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China;
- Correspondence: (J.H.); (W.P.); Tel.: +86-591-87878029 (J.H.); Tel.: +86-591-22861135 (W.P.)
| |
Collapse
|