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Csongová M, Scheijen JLJM, van de Waarenburg MPH, Gurecká R, Koborová I, Tábi T, Szökö É, Schalkwijk CG, Šebeková K. Association of α-Dicarbonyls and Advanced Glycation End Products with Insulin Resistance in Non-Diabetic Young Subjects: A Case-Control Study. Nutrients 2022; 14:nu14224929. [PMID: 36432614 PMCID: PMC9695161 DOI: 10.3390/nu14224929] [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: 10/31/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022] Open
Abstract
α-Dicarbonyls and advanced glycation end products (AGEs) may contribute to the pathogenesis of insulin resistance by a variety of mechanisms. To investigate whether young insulin-resistant subjects present markers of increased dicarbonyl stress, we determined serum α-dicarbonyls-methylglyoxal, glyoxal, 3-deoxyglucosone; their derived free- and protein-bound, and urinary AGEs using the UPLC/MS-MS method; soluble receptors for AGEs (sRAGE), and cardiometabolic risk markers in 142 (49% females) insulin resistant (Quantitative Insulin Sensitivity Check Index (QUICKI) ≤ 0.319) and 167 (47% females) age-, and waist-to-height ratio-matched insulin-sensitive controls aged 16-to-22 years. The between-group comparison was performed using the two-factor (sex, presence/absence of insulin resistance) analysis of variance; multiple regression via the orthogonal projection to latent structures model. In comparison with their insulin-sensitive peers, young healthy insulin-resistant individuals without diabetes manifest alterations throughout the α-dicarbonyls-AGEs-sRAGE axis, dominated by higher 3-deoxyglucosone levels. Variables of α-dicarbonyls-AGEs-sRAGE axis were associated with insulin sensitivity independently from cardiometabolic risk markers, and sex-specifically. Cleaved RAGE associates with QUICKI only in males; while multiple α-dicarbonyls and AGEs independently associate with QUICKI particularly in females, who displayed a more advantageous cardiometabolic profile compared with males. Further studies are needed to elucidate whether interventions alleviating dicarbonyl stress ameliorate insulin resistance.
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Affiliation(s)
- Melinda Csongová
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 811 07 Bratislava, Slovakia
| | - Jean L. J. M. Scheijen
- Department of Internal Medicine, Maastricht University Medical Centre, 6200 MD Maastricht, The Netherlands
| | | | - Radana Gurecká
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 811 07 Bratislava, Slovakia
- Institute of Medical Physics, Biophysics, Informatics and Telemedicine, Faculty of Medicine, Comenius University, 813 72 Bratislava, Slovakia
| | - Ivana Koborová
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 811 07 Bratislava, Slovakia
| | - Tamás Tábi
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, 1089 Budapest, Hungary
| | - Éva Szökö
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, 1089 Budapest, Hungary
| | - Casper G. Schalkwijk
- Department of Internal Medicine, Maastricht University Medical Centre, 6200 MD Maastricht, The Netherlands
| | - Katarína Šebeková
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 811 07 Bratislava, Slovakia
- Correspondence:
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Zhou L, Wang F, Song X, Shi M, Liang G, Zhang L, Huang F, Jiang G. 3-Deoxyglucosone reduces glucagon-like peptide-1 secretion at low glucose levels through down-regulation of SGLT1 expression in STC-1 cells. Arch Physiol Biochem 2021; 127:311-317. [PMID: 31291135 DOI: 10.1080/13813455.2019.1638413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
CONTEXT Sodium glucose co-transporter 1 (SGLT1) triggers low glucose-induced glucagon-like peptide-1 (GLP-1) secretion. We reported that a two-week administration of 3-deoxyglucosone (3DG), an independent factor associated with the development of pre-diabetes, reduces basal GLP-1 secretion in rats. OBJECTIVE This study investigated the effects of 3DG on GLP-1 secretion and SGLT1 pathway under low-glucose conditions in STC-1 cells. METHODS STC-1 cells were incubated with phloridzin or 3DG at 5.6 mM glucose. SGLT1 expression (by western blotting), GLP-1 and cyclic adenosine monophosphate (cAMP) levels (by ELISA), and intracellular Ca2+ concentration (by Fluo-3/AM) were measured. RESULTS Phloridzin inhibited GLP-1 secretion. SGLT1 protein expression in STC-1 cells cultured in 5.6 mM glucose is higher than that in 25 mM glucose. Exposure to 3DG for 6 h reduced GLP-1 secretion, SGLT1 protein expression, and intracellular concentrations of cAMP and Ca2+. CONCLUSIONS 3DG reduces low glucose-induced GLP-1 secretion in part through reduction of SGLT1 expression.
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Affiliation(s)
- Liang Zhou
- Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China
| | - Fei Wang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China
| | - Xiudao Song
- Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China
| | - Min Shi
- Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China
| | - Guoqiang Liang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China
| | - Lurong Zhang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China
| | - Fei Huang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China
| | - Guorong Jiang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China
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Alteration of Intestinal Microbiota in 3-Deoxyglucosone-Induced Prediabetic Rats. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8406846. [PMID: 32908918 PMCID: PMC7468600 DOI: 10.1155/2020/8406846] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/20/2020] [Accepted: 08/07/2020] [Indexed: 12/22/2022]
Abstract
Our previous research suggests that 3-deoxyglucosone (3DG), formed in the caramelization course and Maillard reactions in food, is an independent factor for the development of prediabetes. Since the relationship between type 2 diabetes (T2D) and intestinal microbiota is moving from correlation to causality, we investigated the alterations in the composition and function of the intestinal microbiota in 3DG-induced prediabetic rats. Rats were given 50 mg/kg 3DG by intragastric administration for two weeks. Microbial profiling in faeces samples was determined through the 16S rRNA gene sequence. The glucagon-like peptide 2 (GLP-2) and lipopolysaccharide (LPS) levels in plasma and intestinal tissues were measured by ELISA and Limulus test, respectively. 3DG treatment did not significantly change the richness and evenness but affected the composition of intestinal microbiota. At the phylum level, 3DG treatment increased the abundance of nondominant bacteria Proteobacteria but did not cause the change of the dominant bacteria. Meanwhile, the abundance of the Prevotellaceae family and Parasutterela genus and the Alcaligencaeae family and Burkholderiales order and its attachment to the Betaproteobacteria class were overrepresented in the 3DG group. The bacteria of Candidatus Soleaferrea genus, Gelria genus, and Thermoanaerobacteraceae family and its attachment to Thermoanaerobacterales order were apparently more abundant in the control group. In addition, 45 KEGG pathways were altered after two-week intragastric administration of 3DG. Among these KEGG pathways, 13 KEGG pathways were involved in host metabolic function related to amino acid metabolism, carbohydrate metabolism, metabolism of cofactors and vitamins, and metabolism of terpenoids and polyketides. Moreover, the increased LPS levels and the decreased GLP-2 concentration in plasma and intestinal tissues were observed in 3DG-treated rats, together with the impaired fasting glucose and oral glucose tolerance. The alterations in composition and function of the intestinal microbiota were observed in 3DG-treated rats, which provides a possible mechanism linking exogenous 3DG intake to the development of prediabetes.
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Li J, Ji J, Liu F, Wang L. Insulin Glargine and Acarbose in the treatment of elderly patients with diabetes. Pak J Med Sci 2019; 35:609-613. [PMID: 31258562 PMCID: PMC6572939 DOI: 10.12669/pjms.35.3.86] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Objective: To investigate the clinical efficacy of insulin glargine combined with acarbose in the treatment of elderly patients with diabetes. Methods: One hundred and forty-four elderly patients with diabetes who received treatment between December 2016 and December 2017 in Binzhou People’s Hospital, China, were selected and divided into a control group and an observation group, 72 each, using random number table. The control group was treated with insulin glargine, while the observation group was treated with insulin glargine combined with acarbose. The therapeutic effect, improvement of quality of life and adverse reactions were compared between the two groups. Results: After treatment, fasting blood glucose (FBG), 2h postprandial blood glucose (PBG) and glycosylated hemoglobin (Hb Alc) of the two groups were lower than those before treatment, and the decrease degree of the observation group was significantly larger than that of the control group (P<0.05). The time needed for blood glucose reaching the standard level and daily insulin dosage of the observation group were significantly lower than that of the control group, and the differences were statistically significant (P<0.05). SF-36 scale score of the observation group was significantly better than the control group, and the difference was statistically significant (P<0.05). There was no significant difference in the incidence of adverse reactions between the two groups (P>0.05). Conclusion: The combination of insulin Glargine and Acarbose can significantly control the blood glucose level of elderly patients with diabetes, improve the biochemical indicators, and enhance the quality of life. It is worth promotion in clinical practice.
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Affiliation(s)
- Jing Li
- Jing Li General Medicine (I), Binzhou People's Hospital, Shandong, 256610, China
| | - Jinzhi Ji
- Jinzhi Ji Department of Health Management Center, Binzhou People's Hospital, Shandong, 256610, China
| | - Fuyan Liu
- Fuyan Liu Department of Operation Room, Binzhou People's Hospital, Shandong, 256610, China
| | - Lingling Wang
- Lingling Wang General Medicine (I), Binzhou People's Hospital, Shandong, 256610, China
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Song X, Liang G, Shi M, Zhou L, Wang F, Zhang L, Huang F, Jiang G. Acute exposure to 3‑deoxyglucosone at high glucose levels impairs insulin secretion from β‑cells by downregulating the sweet taste receptor signaling pathway. Mol Med Rep 2019; 19:5015-5022. [PMID: 31059088 DOI: 10.3892/mmr.2019.10163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 04/10/2019] [Indexed: 11/06/2022] Open
Abstract
Sweet taste receptors (STRs) expressed on β‑cells stimulate insulin secretion in response to an increase in the circulating level of glucose, maintaining glucose homeostasis. 3‑Deoxyglucosone (3DG), a highly reactive α‑dicarbonyl compound, has been previously described as an independent factor associate with the development of prediabetes. In our previous study, pathological plasma levels of 3DG were induced in normal rats with a single intravenous injection of 50 mg/kg 3DG, and an acute rise in circulating 3DG induced glucose intolerance by impairing the function of pancreatic β‑cells. The present study aimed to investigate whether the deleterious effects of pathological plasma levels of 3DG on β‑cell function and insulin secretion were associated with STRs. INS‑1 cells, an in vitro model to study rat β‑cells, were treated with various concentrations of 3DG (1.85, 30.84 and 61.68 mM) or lactisole (5 mM). Pancreatic islets were collected from rats 2 h after a single intravenous injection of 50 mg/kg 3DG + 0.5 g/kg glucose. The insulin concentration was measured by ELISA. The protein expression levels of components of the STR signaling pathways were determined by western blot analysis. Treatment with 3DG and 25.5 mM glucose for 1 h significantly reduced insulin secretion by INS‑1 cells, which was consistent with the phenotype observed in INS‑1 cells treated with the STR inhibitor lactisole. Accordingly, islets isolated from rats treated with 3DG exhibited a significant reduction in insulin secretion following treatment with 25.5 mM glucose. Furthermore, acute exposure of INS‑1 cells to 3DG following treatment with 25.5 mM glucose for 1 h significantly reduced the protein expression level of the STR subunit taste 1 receptor member 3 and its downstream factors, transient receptor potential cation channel subfamily M member 5 and glucose transporter 2. Notably, islet tissues collected from rats treated with 3DG exhibited a similar downregulation of these factors. The present results suggested that acute exposure to pathologically relevant levels of 3DG in presence of high physiological levels of glucose decreased insulin secretion from β‑cells by, at least in part, downregulating the STR signaling pathway.
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Affiliation(s)
- Xiudao Song
- Basic Research Laboratory, Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
| | - Guoqiang Liang
- Basic Research Laboratory, Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
| | - Min Shi
- Basic Research Laboratory, Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
| | - Liang Zhou
- Basic Research Laboratory, Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
| | - Fei Wang
- Basic Research Laboratory, Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
| | - Lurong Zhang
- Basic Research Laboratory, Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
| | - Fei Huang
- Basic Research Laboratory, Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
| | - Guorong Jiang
- Basic Research Laboratory, Suzhou Academy of Wumen Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
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Song X, Wang F, Xu H, Liang G, Zhou L, Zhang L, Huang F, Jiang G. 3-Deoxyglucosone Induces Glucagon-Like Peptide-1 Secretion from STC-1 Cells via Upregulating Sweet Taste Receptor Expression under Basal Conditions. Int J Endocrinol 2019; 2019:4959646. [PMID: 31772575 PMCID: PMC6854250 DOI: 10.1155/2019/4959646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/29/2019] [Accepted: 09/23/2019] [Indexed: 11/25/2022] Open
Abstract
3-Deoxyglucosone (3DG) is derived from D-glucose during food processing and storage and under physiological conditions. We reported that glucagon-like peptide-1 (GLP-1) secretion in response to an oral glucose load in vivo and high-glucose stimulation in vitro was decreased by acute 3DG administration. In this study, we determined the acute effect of 3DG on GLP-1 secretion under basal conditions and investigated the possible mechanisms. Normal fasting rats were given a single acute intragastric administration of 50 mg/kg 3DG. Plasma basal GLP-1 levels and duodenum 3DG content and sweet taste receptor expression were measured. STC-1 cells were acutely exposed to 3DG (80, 300, and 1000 ng/ml) for 1 h under basal conditions (5.6 mM glucose), and GLP-1 secretion, intracellular concentrations of cyclic adenosine monophosphate (cAMP) and Ca2+, and molecular expression of STR signaling pathway were measured. Under the fasted state, plasma GLP-1 levels, duodenum 3DG content, and duodenum STR expression were elevated in 3DG-treated rats. GLP-1 secretion was increased in 3DG-treated cells under either 5.6 mM glucose or glucose-free conditions. 3DG-induced acute GLP-1 secretion from STC-1 cells under 5.6 mM glucose was inhibited in the presence of the STR inhibitor lactisole, which was consistent with the observation under glucose-free conditions. Moreover, acute exposure to 3DG increased the protein expression of TAS1R2 and TAS1R3 under either 5.6 mM glucose or glucose-free conditions, with affecting other components of STR signaling pathway, including the upregulation of transient receptor potential channel type M5 TRPM5 and the increment of intracellular Ca2+ concentration. In summary, the glucose-free condition was used to first demonstrate the involvement of STR in 3DG-induced acute GLP-1 secretion. These results first showed that acute 3DG administration induces basal GLP-1 secretion in part through upregulation of STR expression.
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Affiliation(s)
- Xiudao Song
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215009, Jiangsu, China
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou Academy of Wumen Chinese Medicine, Suzhou 215009, Jiangsu, China
| | - Fei Wang
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215009, Jiangsu, China
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou Academy of Wumen Chinese Medicine, Suzhou 215009, Jiangsu, China
| | - Heng Xu
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215009, Jiangsu, China
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou Academy of Wumen Chinese Medicine, Suzhou 215009, Jiangsu, China
| | - Guoqiang Liang
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215009, Jiangsu, China
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou Academy of Wumen Chinese Medicine, Suzhou 215009, Jiangsu, China
| | - Liang Zhou
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215009, Jiangsu, China
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou Academy of Wumen Chinese Medicine, Suzhou 215009, Jiangsu, China
| | - Lurong Zhang
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215009, Jiangsu, China
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou Academy of Wumen Chinese Medicine, Suzhou 215009, Jiangsu, China
| | - Fei Huang
- Department of Endocrinology, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215009, Jiangsu, China
| | - Guorong Jiang
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215009, Jiangsu, China
- Clinical Pharmaceutical Laboratory of Traditional Chinese Medicine, Suzhou Academy of Wumen Chinese Medicine, Suzhou 215009, Jiangsu, China
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Wang F, Song X, Zhou L, Liang G, Huang F, Jiang G, Zhang L. The downregulation of sweet taste receptor signaling in enteroendocrine L-cells mediates 3-deoxyglucosone-induced attenuation of high glucose-stimulated GLP-1 secretion. Arch Physiol Biochem 2018; 124:430-435. [PMID: 29277113 DOI: 10.1080/13813455.2017.1419366] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
CONTEXT Sweet taste receptors (STRs) involve in regulating the release of glucose-stimulated glucagon-like peptide-1 (GLP-1). Our in vivo and in vitro studies found that 3-deoxyglucosone (3DG) inhibited glucose-stimulated GLP-1 secretion. OBJECTIVE This study investigated the role of STRs in 3DG-induced inhibition of high glucose-stimulated GLP-1 secretion. METHODS STC-1 cells were incubated with lactisole or 3DG for 1 h under 25 mM glucose conditions. Western blotting was used to study the expression of STRs signaling molecules and ELISA was used to analyse GLP-1 and cyclic adenosine monophosphate (cAMP) levels. RESULTS Lactisole inhibited GLP-1 secretion. Exposure to 25 mM glucose increased the expressions of STRs subunits when compared with 5.6 mM glucose. 3DG decreased GLP-1 secretion and STRs subunits expressions, with affecting other components of STRs pathway, including the downregulation of transient receptor potential cation channel subfamily M member 5 (TRPM5) expression and the reduction of intracellular cAMP levels. CONCLUSION 3DG attenuates high glucose-stimulated GLP-1 secretion by reducing STR subunit expression and downstream signaling components.
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Affiliation(s)
- Fei Wang
- a Suzhou Academy of Wumen Chinese Medicine , Suzhou Hospital of Traditional Chinese Medicine , Suzhou , P. R. China
| | - Xiudao Song
- a Suzhou Academy of Wumen Chinese Medicine , Suzhou Hospital of Traditional Chinese Medicine , Suzhou , P. R. China
| | - Liang Zhou
- a Suzhou Academy of Wumen Chinese Medicine , Suzhou Hospital of Traditional Chinese Medicine , Suzhou , P. R. China
| | - Guoqiang Liang
- a Suzhou Academy of Wumen Chinese Medicine , Suzhou Hospital of Traditional Chinese Medicine , Suzhou , P. R. China
| | - Fei Huang
- a Suzhou Academy of Wumen Chinese Medicine , Suzhou Hospital of Traditional Chinese Medicine , Suzhou , P. R. China
| | - Guorong Jiang
- a Suzhou Academy of Wumen Chinese Medicine , Suzhou Hospital of Traditional Chinese Medicine , Suzhou , P. R. China
| | - Lurong Zhang
- a Suzhou Academy of Wumen Chinese Medicine , Suzhou Hospital of Traditional Chinese Medicine , Suzhou , P. R. China
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Zhang L, Zhou L, Song X, Liang G, Xu Z, Wang F, Huang F, Jiang G. Involvement of exogenous 3‑deoxyglucosone in β‑cell dysfunction induces impaired glucose regulation. Mol Med Rep 2017; 16:2976-2984. [PMID: 28656301 DOI: 10.3892/mmr.2017.6856] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 05/04/2017] [Indexed: 11/05/2022] Open
Abstract
β‑cell dysfunction is the primary cause of type 2 diabetes mellitus (T2DM). 1,2‑dicarbonyl compounds, such as 3‑deoxyglucosone (3DG) have been reported to increase the risk of T2DM. Abnormal elevation of plasma 3DG may impair β‑cell function and thereby, it is linked to T2DM. Previous findings suggest that exogenous 3DG may serve an important role in the development of pre‑diabetes. In the present study, the authors examine whether exogenous 3DG induces impaired glucose regulation in mice by decreasing β‑cell function involving of accumulation of plasma 3DG. At two weeks following administration of 3DG, fasting blood glucose (FBG) levels, oral glucose tolerance (by a glucose meter) and plasma levels of 3DG (by HPLC) and insulin (by radioimmunoassay) were measured. Glucose‑stimulated insulin secretion in cultured pancreas islets and INS‑1 cells was measured by radioimmunoassay. Western blotting was used to examine the expression of the key molecules of the insulin‑PI3K signaling pathway. 3DG treatment increased FBG and fasting blood insulin levels, reduced oral glucose tolerance in conjunction with decreased ∆Ins30‑0/∆G30‑0. In 3DG‑treated mice, an increase in the plasma 3DG level was observed, which was most likely the mechanism for decreased β‑cell function. This idea was further supported by these results that non‑cytotoxic 3DG concentration obviously decreased glucose‑stimulated insulin secretion in cultured pancreas islets and INS‑1 cells exposure to high glucose (25.5 mM). 3DG decreased the expression of GLUT2 and phosphorylation of IRS‑1, PI3K‑p85 and Akt in high glucose‑induced INS‑1 cells. To the best of the authors' knowledge, the present study is the first to demonstrate that exogenous 3DG induced normal mice to develop IGR, resulting from β‑cell dysfunction. Exogenous 3DG administration increased plasma 3DG levels, which participates in inducing β‑cell dysfunction, at least in part, through impairing IRS‑1/PI3K/GLUT2 signaling.
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Affiliation(s)
- Lurong Zhang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215003, P.R. China
| | - Liang Zhou
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215003, P.R. China
| | - Xiudao Song
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215003, P.R. China
| | - Guoqiang Liang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215003, P.R. China
| | - Zhongrui Xu
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215003, P.R. China
| | - Fei Wang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215003, P.R. China
| | - Fei Huang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215003, P.R. China
| | - Guorong Jiang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215003, P.R. China
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LIANG GUOQIANG, WANG FEI, SONG XIUDAO, ZHANG LURONG, QIAN ZHEN, JIANG GUORONG. 3-Deoxyglucosone induces insulin resistance by impairing insulin signaling in HepG2 cells. Mol Med Rep 2016; 13:4506-12. [DOI: 10.3892/mmr.2016.5081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 03/01/2016] [Indexed: 11/06/2022] Open
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Zhang L, Song X, Zhou L, Liang G, Xu H, Wang F, Huang F, Jiang G. Accumulation of intestinal tissue 3-deoxyglucosone attenuated GLP-1 secretion and its insulinotropic effect in rats. Diabetol Metab Syndr 2016; 8:78. [PMID: 27956941 PMCID: PMC5129672 DOI: 10.1186/s13098-016-0194-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 11/24/2016] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Our recent findings support the idea that 3-deoxyglucosone (3DG), a dietary composition, has been suggested as an independent factor for the development of prediabetes. Secretion of glucagon-like peptide-1 (GLP-1) has been suggested to be impaired in T2DM and in conditions associated with hyperglycemia. Since low oral bioavailability of 3DG has been indicated in a single administration study, in the present study we examined if 3DG is capable of accumulating in intestinal tissue of rats after 2-week administration of 3DG, and the 3DG treatment affects GLP-1 secretion and glucose tolerance. METHODS Rats were administered by gastric gavage for 2 weeks. We measured 3DG contents of intestinal tissues (by HPLC), plasma levels of total GLP-1 (by ELISA), insulin and glucagon (both by radioimmunoassay) and blood glucose concentrations. The expressions of the sweet receptor subunits (TAS1R2, TAS1R3) and its downstream molecule TRPM5 in duodenum and colon tissues of rats were quantified by WB. We examined GLP-1 secretion in enteroendocrine STC-1 cells exposured to 3DG. RESULTS 3DG treatment for 2 weeks increased 3DG content of intestinal tissues, fasting blood glucose concentration, and reduced plasma concentrations of GLP-1 and insulin at fasting and 15 and 180 min after the glucose load and oral glucose tolerance in conjunction with increased plasma glucagon concentrations. The expressions of TAS1R2, TAS1R3 and TRPM5 were shown to be reduced whereas 3DG treatment did not affect plasma dipeptidyl peptidase-4 activity, indicating an impaired GLP-1 secretion in 3DG-treated rats. This idea was further supported by the fact that exposure to 3DG directly decrease GLP-1 secretion in STC-1. CONCLUSION It is the first demonstration that 3DG was capable of accumulating in intestinal tissue and thereby decreased secretion of GLP-1 and insulin in a similar manner. 3DG-treated rats developed impaired glucose regulation (IGR) with obviously pancreatic islet cell dysfunction. It is further concluded that a decrease in the biological function of GLP-1 resulting from the decreased GLP-1 secretion is the most likely mechanism for the impaired insulin secretion, which ultimately promoted the development of IGR. These results will also contribute to a better understanding of the significance for restoring physiological GLP-1 secretion.
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Affiliation(s)
- Lurong Zhang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, No. 18, Yangsu Road, Suzhou, 215003 Jiangsu People’s Republic of China
| | - Xiudao Song
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, No. 18, Yangsu Road, Suzhou, 215003 Jiangsu People’s Republic of China
| | - Liang Zhou
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, No. 18, Yangsu Road, Suzhou, 215003 Jiangsu People’s Republic of China
| | - Guoqiang Liang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, No. 18, Yangsu Road, Suzhou, 215003 Jiangsu People’s Republic of China
| | - Heng Xu
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, No. 18, Yangsu Road, Suzhou, 215003 Jiangsu People’s Republic of China
| | - Fei Wang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, No. 18, Yangsu Road, Suzhou, 215003 Jiangsu People’s Republic of China
| | - Fei Huang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, No. 18, Yangsu Road, Suzhou, 215003 Jiangsu People’s Republic of China
| | - Guorong Jiang
- Suzhou Academy of Wumen Chinese Medicine, Suzhou Hospital of Traditional Chinese Medicine, No. 18, Yangsu Road, Suzhou, 215003 Jiangsu People’s Republic of China
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