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Diao Z, Yu H, Wu Y, Sun Y, Tang H, Wang M, Li N, Ge H, Sun J, Gu HF. Identification of the main flavonoids of Abelmoschus manihot (L.) medik and their metabolites in the treatment of diabetic nephropathy. Front Pharmacol 2024; 14:1290868. [PMID: 38313075 PMCID: PMC10836608 DOI: 10.3389/fphar.2023.1290868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/19/2023] [Indexed: 02/06/2024] Open
Abstract
Introduction: Huangkui capsule (HKC) is made from the ethanol extract of Abelmoschus manihot (L.) Medik [Malvaceae; abelmoschi corolla] and received approval from the China Food and Drug Administration (Z19990040) in 1999. Currently, HKC is used for treatment of the patients with diabetic nephropathy (DN) in China. The bioactive chemical constituents in HKC are total flavonoids of A. manihot (L.) Medik (TFA). The present study aims to identify the primary flavonoid metabolites in HKC and TFA and their metabolism fates in db/db mice, the animal model for the study of type 2 diabetes and DN. Methods: HKC (0.84 g/kg/d) and TFA (0.076 g/kg/d) or vehicle were respectively administered daily via oral gavage in db/db mice for 4 weeks. The metabolism fate of the main metabolites of HKC in serum, liver, kidney, heart, jejunum, colon, jejunal contents, colonic contents, and urine of db/db mice were analyzed with a comprehensive metabolite identification strategy. Results and Discussion: In db/db mice administered with HKC and TFA, 7 flavonoid prototypes and 38 metabolites were identified. The related metabolic pathways at Phases I and II reactions included dehydroxylation, deglycosylation, hydrogenation, methylation, glucuronidation, sulphation, and corresponding recombined reactions. Quercetin, isorhamnetin, quercetin sulphate, quercetin monoglucuronide, and isorhamnetin monoglucuronide presented a high exposure in the serum and kidney of db/db mice. Thereby, the present study provides a pharmacodynamic substance basis for better understanding the mechanism of A. manihot (L.) Medik for medication of DN.
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Affiliation(s)
- Zhipeng Diao
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Hongmei Yu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yapeng Wu
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Yuanbo Sun
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Haitao Tang
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Mei Wang
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Nan Li
- Department of Endocrinology, Jiangsu Province Hospital of Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Haitao Ge
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Jianguo Sun
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, Research Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical Sciences, China Pharmaceutical University, Nanjing, China
| | - Harvest F Gu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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Yu H, Tang H, Wang M, Xu Q, Yu J, Ge H, Qiang L, Tang W, Gu HF. Effects of total flavones of Abelmoschus manihot (L.) on the treatment of diabetic nephropathy via the activation of solute carriers in renal tubular epithelial cells. Biomed Pharmacother 2023; 169:115899. [PMID: 37984306 DOI: 10.1016/j.biopha.2023.115899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/09/2023] [Accepted: 11/14/2023] [Indexed: 11/22/2023] Open
Abstract
As a traditional Chinese medicine, Huangkui capsule (HKC) has been used to treat patients with kidney diseases, including diabetic nephropathy (DN). We have recently demonstrated that HKC could re-regulate the activities of solute carriers (SLC)s in proximal and distal convoluted tubules of kidneys in regression of the development of DN. The main active chemical constituents of HKC are the flavones of Abelmoschus manihot (L.). The current study aims to further evaluate the efficacy of total flavones of A. manihot (TFA) in the regression of DN by analyzing SLC activities in proximal and distal convoluted tubules of kidneys. TFA (0.076 g/kg/d) or vehicle was administered in db/db mice, the animal model of type 2 diabetes and DN, daily via oral gavage for four weeks. Blood glucose levels and urinary albumin-to-creatinine ratio (UACR) were measured and used for the determination of T2D and DN. Ten SLCs, including slc2a2, slc4A1, slc5a2, slc5A3, slc5a8, slc6a20, slc27a2, slc12a3, slc34a1 and slc38a2 were highly expressed in proximal and distinct convoluted tubules of kidneys. Their expression at mRNA and protein levels before and after TFA treatment were analyzed with real-time RT-PCR and immunohistochemistry. Data showed that UACR in the db/db mice after TFA treatment was significantly decreased. Compared with the group of non-diabetic control, slc2a2, slc4A1, slc5a2, slc5A3, slc5a8, slc6a20, slc27a2, slc12a3, slc34a1 and slc38a2 in the group of DN were down-regulated but up-regulated after TFA treatment. Further analyses of whole kidney sections indicated that the numbers and structures of the nephron in db/db mice was increased and improved after TFA treatment. Thereby, the current study provides further evidence that the flavones in A. manihot have pharmacological effects on the treatment of DN by improving the biological function of SLCs in kidneys.
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Affiliation(s)
- Hongmei Yu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 24 Tongjia Lane, Gulou District, Nanjing, Jiangsu Province 210009, China
| | - Haitao Tang
- Suzhong Pharmaceutical Research Institute, 3-1 Xinjinhu Road, Jiangbei New Area, Nanjing, Jiangsu Province 210018, China
| | - Mei Wang
- Suzhong Pharmaceutical Research Institute, 3-1 Xinjinhu Road, Jiangbei New Area, Nanjing, Jiangsu Province 210018, China
| | - Qing Xu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 24 Tongjia Lane, Gulou District, Nanjing, Jiangsu Province 210009, China
| | - Jinshi Yu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 24 Tongjia Lane, Gulou District, Nanjing, Jiangsu Province 210009, China
| | - Haitao Ge
- Suzhong Pharmaceutical Research Institute, 3-1 Xinjinhu Road, Jiangbei New Area, Nanjing, Jiangsu Province 210018, China
| | - Lei Qiang
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 639 Longman Avenue, Jiangning District, Nanjing, Jiangsu Province 211198, China
| | - Wei Tang
- Department of Endocrinology, Islet Cell Senescence and Function Research Laboratory, Nanjing Medical University Affiliated Geriatric Hospital/Jiangsu Province Geriatric Hospital, 65 Jiangsu Road, Gulou District, Nanjing, Jiangsu Province 210024, China.
| | - Harvest F Gu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 24 Tongjia Lane, Gulou District, Nanjing, Jiangsu Province 210009, China.
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Saxu R, Yang Y, Gu HF. Asymmetries of Left and Right Adrenal Glands in Neural Innervation and Glucocorticoids Production. Int J Mol Sci 2023; 24:17456. [PMID: 38139285 PMCID: PMC10743655 DOI: 10.3390/ijms242417456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/08/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
The adrenal gland is paired peripheral end organs of the neuroendocrine system and is responsible for producing crucial stress hormones from its two functional compartments, the adrenal cortex, and the adrenal medulla under stimuli. Left-right asymmetry in vertebrates exists from the central nervous system to peripheral paired endocrine glands. The sided difference in the cerebral cortex is extensively investigated, while the knowledge of asymmetry of paired endocrine glands is still poor. The present study aims to investigate the asymmetries of bilateral adrenal glands, which play important roles in stress adaptation and energy homeostasis via steroid hormones produced from the distinct functional zones. Left and right adrenal glands from male C57BL/6J mice were initially histologically analyzed, and high-throughput RNA sequencing was then used to detect the gene transcriptional difference between left and right adrenal glands. Subsequently, the enrichment of functional pathways and ceRNA regulatory work was validated. The results demonstrated that the left adrenal gland had higher tissue mass and levels of energy expenditure, whereas the right adrenal gland appeared to be more potent in glucocorticoid secretion. Further analysis of adrenal stem/progenitor cell markers predicted that Shh signaling might play an important role in the left-right asymmetry of adrenal glands. Of the hub miRNAs, miRNA-466i-5p was identified in the left-right differential innervation of the adrenal glands. Therefore, the present study provides evidence that there are asymmetries between the left and right adrenal glands in glucocorticoid production and neural innervation, in which Shh signaling and miRNA-466i-5p play an important role.
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Affiliation(s)
- Rengui Saxu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
| | - Yong Yang
- Center for New Drug Safety Evaluation and Research, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China
| | - Harvest F. Gu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
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Gu HF, Ma Y, Luo S, Zhong J, Ma L, Cai J, Zhang LJ. [Effect of different respiratory motion correction methods on PET image quality in chest PET/MRI]. Zhonghua Yi Xue Za Zhi 2023; 103:2591-2598. [PMID: 37650205 DOI: 10.3760/cma.j.cn112137-20230516-00801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Objective: To investigate the effect of different respiratory motion correction methods on PET images during chest PET/MRI scans. Methods: The data of 35 patients (24 males and 11 females, aged from 29 to 84 year) of pulmonary lesions with significantly high uptake in thoracic PET/MRI scan were retrospective collected from Jingling Hospital. Four different methods were used to reconstruct the PET data. Group A was the full-time 20 min without respiratory motion correction static acquisition (Static) as a control, group B was the end-expiration static collection (Q.Static), and group C was the multi-bins respiratory gating (Gated-Respiratory). In addition, the influence of the time being considered, group D was added for reconstruction in the first 1/3 period (6 min 40 s) of group A. Then, the maximum value (L-SUVmax) and the mean value (L-SUVmean) of the SUV of the lesion, the mean value (B-SUVmean) and the standard deviation (B-SUVsd) of the SUV of the background under each reconstruction results were measured, and for each lesion the signal-to-noise ratio (L-SNR) was calculated. In order to exclude the interference of the background, the mean of the relative SUV (L-dSUVmean) of the L-SUVmean relative to the B-SUVmean was also calculated. Finally, One-Way Repeated Measures ANOVA was used, and the post-hoc pairwise comparison between groups was tested by Bonferroni's modified test. Results: There was statistically significant difference among group B or group C compared to group A and group D in L-SUVmax, L-SUVmean and L-dSUVmean [L-SUVmax:group B vs group A or group D was 8.06±3.57 vs 7.73±3.45 or 7.61±3.50, group C vs group A or group D was 8.04±3.56 vs 7.73±3.45 or 7.61±3.50 (all P<0.05); L-SUVmean: group B vs group A or group D was 4.12±1.78 vs 3.98±1.72 or 3.91±1.71, group C vs group A or group D was 4.13±1.78 vs 3.98±1.72 or 3.91±1.71 (all P<0.05); L-dSUVmean: group B vs group A or group D was 3.52±0.16 vs 3.39±0.18 or 3.31±0.18, group C vs group A or group D was 3.53±0.18 vs 3.39±0.18 or 3.31±0.18 (all P<0.05)], but there was no statistically significant difference between group B and group C (all P>0.05). There were statistically significant differences between group D and group A in B-SUVsd (0.07±0.00 vs 0.07±0.00, P=0.023) and L-SNR (69.80±44.57 vs 85.35±68.98, P=0.001). There was no statistically significant difference between group D and group A in L-SUVmax, L-SUVmean, B-SUVmean and L-dSUVmean (all P>0.05). Conclusions: There was no significant difference in PET image quality between the Q.static and Gated-Respiratory group, both of the two groups were better than the Static group which with no Gated-Respiratory motion correction. If non-respiratory gated Static is used, the PET acquisition time is recommended to be 6 min 40 s.
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Affiliation(s)
- H F Gu
- Department of Radiology, General Hospital of Eastern Theater Command, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - Y Ma
- Department of Radiology, General Hospital of Eastern Theater Command, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - S Luo
- Department of Radiology, General Hospital of Eastern Theater Command, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - J Zhong
- Department of Radiology, General Hospital of Eastern Theater Command, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - L Ma
- Department of Radiology, General Hospital of Eastern Theater Command, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - J Cai
- Department of Radiology, General Hospital of Eastern Theater Command, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - L J Zhang
- Department of Radiology, General Hospital of Eastern Theater Command, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
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Wu C, Song Y, Yu Y, Xu Q, Cui X, Wang Y, Wu J, Gu HF. Single-Cell Transcriptional Landscape Reveals the Regulatory Network and Its Heterogeneity of Renal Mitochondrial Damages in Diabetic Kidney Disease. Int J Mol Sci 2023; 24:13502. [PMID: 37686311 PMCID: PMC10487965 DOI: 10.3390/ijms241713502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
Diabetic kidney disease (DKD) is one of the common chronic microvascular complications of diabetes in which mitochondrial disorder plays an important role in its pathogenesis. The current study delved into the single-cell level transcriptome heterogeneity of mitochondrial homeostasis in db/db mice, an animal model for study of type 2 diabetes and DKD, with single-cell RNA sequencing (scRNA-Seq) and bulk RNA-seq analyses. From the comprehensive dataset comprising 13 meticulously captured and authenticated renal cell types, an unsupervised cluster analysis of mitochondria-related genes within the descending loop of Henle, collecting duct principal cell, endothelial, B cells and macrophage, showed that they had two types of cell subsets, i.e., health-dominant and DKD-dominant clusters. Pseudotime analysis, cell communication and transcription factors forecast resulted in identification of the hub differentially expressed genes between these two clusters and unveiled that the hierarchical regulatory network of receptor-TF-target genes was triggered by mitochondrial degeneration. Furthermore, the collecting duct principal cells were found to be regulated by the decline of Fzd7, which contributed to the impaired cellular proliferation and development, apoptosis and inactive cell cycle, as well as diminished capacity for material transport. Thereby, both scRNA-Seq and bulk RNA-Seq data from the current study elucidate the heterogeneity of mitochondrial disorders among distinct cell types, particularly in the collecting duct principal cells and B cells during the DKD progression and drug administration, which provide novel insights for better understanding the pathogenesis of DKD.
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Affiliation(s)
- Chenhua Wu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (C.W.); (Y.S.); (Y.Y.); (Q.X.); (X.C.); (Y.W.)
- Laboratory of Minigene Pharmacy, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Yuhui Song
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (C.W.); (Y.S.); (Y.Y.); (Q.X.); (X.C.); (Y.W.)
| | - Yihong Yu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (C.W.); (Y.S.); (Y.Y.); (Q.X.); (X.C.); (Y.W.)
- Laboratory of Minigene Pharmacy, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Qing Xu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (C.W.); (Y.S.); (Y.Y.); (Q.X.); (X.C.); (Y.W.)
| | - Xu Cui
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (C.W.); (Y.S.); (Y.Y.); (Q.X.); (X.C.); (Y.W.)
| | - Yurong Wang
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (C.W.); (Y.S.); (Y.Y.); (Q.X.); (X.C.); (Y.W.)
| | - Jie Wu
- Laboratory of Minigene Pharmacy, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Harvest F. Gu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (C.W.); (Y.S.); (Y.Y.); (Q.X.); (X.C.); (Y.W.)
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Chen S, Huo LQ, Luo S, Wang XX, Xu SJ, Ma Y, Gu HF, Gu J, Lu GM, Zhang LJ. [Qualitative and quantitative PET/MRI in the evaluation of axillary lymph node metastasis in patients with breast cancer]. Zhonghua Yi Xue Za Zhi 2023; 103:2433-2439. [PMID: 37599218 DOI: 10.3760/cma.j.cn112137-20230523-00841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Objective: To investigate the value of qualitative and quantitative PET/MRI in the evaluation of axillary lymph node metastasis in patients with breast cancer. Methods: A total of 33 patients with breast cancer underwent preoperative PET/MRI examinations in Jingling Hospital from February to August in 2022 were retrospectively collected. All these patients were female, aged from 34 to 73 (51.4±11.3) years. Histopathological results and follow-up data were deemed as the referent standard, and the images were independently evaluated by two experienced breast imaging radiologists. The qualitative PET/MRI evaluation procedures were designed to evaluated the MRI alone to classify the axillary lymph nodes firstly, and then, the axillary lymph nodes status was reclassified by combining MRI and PET images. The net reclassification improvement index (NRI) was calculated using the R Programming Language (RStudio). The quantitative PET/MRI evaluation of the maximum standard uptake value (SUVmax) of axillary lymph nodes were measured by two radiologists, respectively, and the average value was compared with the referent standard to conduct a receiver operating characteristic (ROC) curve to select the optimal cutoff value of SUVmax. Based on the cutoff value and MRI classification results, axillary lymph nodes status was divided into quantitative PET/MRI positive or negative. The sensitivity, specificity and accuracy of MRI and quantitative PET/MRI in evaluating axillary lymph node metastasis were compared, and the area under the ROC curve (AUC) was compared. Results: There was no significant difference in sensitivity, specificity and accuracy between MRI and quantitative PET/MRI in evaluating lymph node metastasis of breast cancer (81.82% vs 95.46%; 81.82% vs 100%; 81.82% vs 96.97%) (all P>0.05). The AUC had a statistically significant difference [0.82 (0.65 to 0.93) vs 0.98 (0.85 to 1.00), P=0.026)]. According to the referent standard, in the 11 cases without ipsilateral axillary lymph node metastasis, the SUVmax was 0.83±0.18, while in the 22 cases with ipsilateral axillary lymph node metastasis, the SUVmax was [4.36 (1.77, 5.85)]. Compared with MRI alone, the NRI of qualitative PET/MRI in evaluating lymph node metastasis was 36.36% (P=0.021). Conclusion: Compared with MRI alone, quantitative PET/MRI has a higher AUC for evaluating axillary lymph node metastasis in patients with breast cancer, and qualitative PET/MRI had a better reclassification power in the evaluation of axillary lymph node metastasis.
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Affiliation(s)
- S Chen
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - L Q Huo
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - S Luo
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - X X Wang
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - S J Xu
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Y Ma
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - H F Gu
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - J Gu
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - G M Lu
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - L J Zhang
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
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Yu H, Wang M, Yu J, Tang H, Xu Q, Cheng N, Luo X, Wang Y, Ge H, Qiang L, Tang W, Gu HF. Evaluation of the efficacy of Abelmoschus manihot (L.) on diabetic nephropathy by analyzing biomarkers in the glomeruli and proximal and distal convoluted tubules of the kidneys. Front Pharmacol 2023; 14:1215996. [PMID: 37587982 PMCID: PMC10427220 DOI: 10.3389/fphar.2023.1215996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/14/2023] [Indexed: 08/18/2023] Open
Abstract
Introduction: As a traditional Chinese medicine, Abelmoschus manihot (L.) in the form of Huangkui (HK) capsule has been used as a medication for kidney diseases, including diabetic nephropathy (DN), in China. The most significant effect of HK capsule treatment in kidney diseases is the reduction of albuminuria and proteinuria. To evaluate the efficacy of HK capsule in the regression of DN, in the current study, we analyzed the biomarkers in the glomerulus and proximal and distal convoluted tubules in the kidneys of db/db mice, the animal model for type 2 diabetes and DN. Methods: Huangkui capsules (0.84 g/kg/d) or vehicle were administered daily via oral gavage for 4 weeks in db/db mice. Urinary albumin-to-creatinine ratio and blood glucose levels were measured during the whole experimental period. Five biomarkers in the glomerulus and proximal and distal convoluted tubules in the kidneys were selected, namely, col4a3, slc5a2, slc34a1, slc12a3, and slc4a1, and their activities at mRNA and protein levels before and after HK capsule treatment were analyzed by real-time RT-PCR and immunohistochemistry. Result and discussion: After HK capsule treatment for 4 weeks, the urinary albumin-to-creatinine ratio in db/db mice was found to be significantly decreased. The activities of col4a3, slc5a2, slc34a1, slc12a3, and slc4a1 in the kidneys were upregulated in db/db mice prior to the treatment but downregulated after HK capsule treatment. Further analyses of the fields of whole kidney tissue sections demonstrated that the number of nephrons in the kidneys of db/db mice with HK capsule treatment was higher than that in the kidneys of db/db mice without HK capsule treatment. Thereby, the current study provides experimental evidence confirming the medical efficacy of A. manihot in the reduction of albuminuria and proteinuria, suggesting that A. manihot may have pharmacological efficacy in the regression of the development of type 2 diabetes-DN.
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Affiliation(s)
- Hongmei Yu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Mei Wang
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Jingshi Yu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Haitao Tang
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Qing Xu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ning Cheng
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiaoxiao Luo
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yurong Wang
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Haitao Ge
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Lei Qiang
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Wei Tang
- Department of Endocrinology, Islet Cell Senescence and Function Research Laboratory, Nanjing Medical University Affiliated Geriatric Hospital/Jiangsu Province Geriatric Hospital, Nanjing, China
| | - Harvest F. Gu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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Shi R, Tao Y, Tang H, Wu C, Fei J, Ge H, Gu HF, Wu J. Abelmoschus Manihot ameliorates the levels of circulating metabolites in diabetic nephropathy by modulating gut microbiota in non-obese diabetes mice. Microb Biotechnol 2023; 16:813-826. [PMID: 36583468 PMCID: PMC10034626 DOI: 10.1111/1751-7915.14200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 12/12/2022] [Indexed: 12/31/2022] Open
Abstract
Huangkui capsule (HKC), a traditional Chinese medicine, has been used for medication of kidney diseases, including diabetic nephropathy (DN). The current study aimed to evaluate the effects of HKC in the modulation of gut microbiota and the amelioration of metabolite levels by using non-obese diabetes (NOD) mice with DN. The microbiota from three parts of intestines (duodenum, ileum and colon) in NOD mice with and without HKC treatment were analysed using 16S rDNA sequencing techniques. Untargeted metabolomics in plasma of NOD mice were analysed with liquid mass spectrometry. Results showed that HKC administration ameliorated DN in NOD mice and the flora in duodenum were more sensitive to HKC intervention, while the flora in colon had more effects on metabolism. The bacterial genera such as Faecalitalea and Muribaculum significantly increased and negatively correlated with most of the altered metabolites after HKC treatment, while Phyllobacterium, Weissella and Akkermansia showed an opposite trend. The plasma metabolites, mainly including amino acids and fatty acids such as methionine sulfoxide, BCAAs and cis-7-Hexadecenoic acid, exhibited a distinct return to normal after HKC treatment. The current study thereby provides experimental evidence suggesting that HKC may modulate gut microbiota and subsequently ameliorate the metabolite levels in DN.
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Affiliation(s)
- Ruiya Shi
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yingjun Tao
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Haitao Tang
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Chenhua Wu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jingjin Fei
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Haitao Ge
- Suzhong Pharmaceutical Research Institute, Nanjing, China
| | - Harvest F Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jie Wu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
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9
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Wu C, Tao Y, Li N, Fei J, Wang Y, Wu J, Gu HF. Prediction of cellular targets in diabetic kidney diseases with single-cell transcriptomic analysis of db/db mouse kidneys. J Cell Commun Signal 2023; 17:169-188. [PMID: 35809207 PMCID: PMC10030752 DOI: 10.1007/s12079-022-00685-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/21/2022] [Indexed: 01/07/2023] Open
Abstract
Diabetic kidney disease is the leading cause of impaired kidney function, albuminuria, and renal replacement therapy (dialysis or transplantation), thus placing a large burden on health-care systems. This urgent event requires us to reveal the molecular mechanism of this disease to develop more efficacious treatment. Herein, we reported single-cell RNA sequencing analyses in kidneys of db/db mouse, an animal model for type 2 diabetes and diabetic kidney disease. We first analyzed the hub genes expressed differentially in the single cell resolution transcriptome map of the kidneys. Then we figured out the communication among the renal and immune cells in the kidneys. Data from this report may provide novel information for better understanding the cell-specific targets involved in the aetiologia of type 2 diabetic kidney disease and for cell communication and signaling between renal cells and immune cells of this complex disease.
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Affiliation(s)
- Chenhua Wu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
- Laboratory of Minigene Pharmacy, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Yingjun Tao
- Laboratory of Minigene Pharmacy, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Nan Li
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
- Department of Endocrinology, Jiangsu Province Hospital of Traditional Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Jingjin Fei
- Laboratory of Minigene Pharmacy, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Yurong Wang
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Jie Wu
- Laboratory of Minigene Pharmacy, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China.
| | - Harvest F Gu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
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10
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Lian Z, Wu Z, Gu R, Wang Y, Wu C, Cheng Z, He M, Wang Y, Cheng Y, Gu HF. Evaluation of Cardiovascular Toxicity of Folic Acid and 6S-5-Methyltetrahydrofolate-Calcium in Early Embryonic Development. Cells 2022; 11:cells11243946. [PMID: 36552710 PMCID: PMC9777352 DOI: 10.3390/cells11243946] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
Folic acid (FA) is a synthetic and highly stable version of folate, while 6S-5-methyltetrahydrofolate is the predominant form of dietary folate in circulation and is used as a crystalline form of calcium salt (MTHF-Ca). The current study aims to evaluate the toxicity and safety of FA and MTHF-Ca on embryonic development, with a focus on cardiovascular defects. We began to analyze the toxicity of FA and MTHF-Ca in zebrafish from four to seventy-two hours postfertilization and assessed the efficacy of FA and MTHF-Ca in a zebrafish angiogenesis model. We then analyzed the differently expressed genes in in vitro fertilized murine blastocysts cultured with FA and MTHF-Ca. By using gene-expression profiling, we identified a novel gene in mice that encodes an essential eukaryotic translation initiation factor (Eif1ad7). We further applied the morpholino-mediated gene-knockdown approach to explore whether the FA inhibition of this gene (eif1axb in zebrafish) caused cardiac development disorders, which we confirmed with qRT-PCR. We found that FA, but not MTHF-Ca, could inhibit angiogenesis in zebrafish and result in abnormal cardiovascular development, leading to embryonic death owing to the downregulation of eif1axb. MTHF-Ca, however, had no such cardiotoxicity, unlike FA. The current study thereby provides experimental evidence that FA, rather than MTHF-Ca, has cardiovascular toxicity in early embryonic development and suggests that excessive supplementation of FA in perinatal women may be related to the potential risk of cardiovascular disorders, such as congenital heart disease.
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Affiliation(s)
- Zenglin Lian
- Institute of Biological Chinese Medicine, Beijing Yichuang Institute of Biotechnology Industry, Beijing 100023, China
| | - Zhuanbin Wu
- Shanghai Model Organisms Center, Inc., Shanghai 201203, China
| | - Rui Gu
- Institute of Biological Chinese Medicine, Beijing Yichuang Institute of Biotechnology Industry, Beijing 100023, China
| | - Yurong Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Chenhua Wu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Zhengpei Cheng
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Mingfang He
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yanli Wang
- National Health Commission Key Laboratory of Birth Defect Prevention, Henan Institute of Reproductive Health Science and Technology, Zhengzhou 450002, China
| | - Yongzhi Cheng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
- Correspondence: (Y.C.); (H.F.G.)
| | - Harvest F. Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
- Correspondence: (Y.C.); (H.F.G.)
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11
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Zhao J, Tostivint I, Xu L, Huang J, Gambotti L, Boffa JJ, Yang M, Wang L, Sun Z, Chen X, Liou-Schischmanoff A, Baumelou A, Ma T, Lu G, Li L, Chen D, Piéroni L, Liu B, Qin X, He W, Wang Y, Gu HF, Sun W. Efficacy of Combined Abelmoschus manihot and Irbesartan for Reduction of Albuminuria in Patients With Type 2 Diabetes and Diabetic Kidney Disease: A Multicenter Randomized Double-Blind Parallel Controlled Clinical Trial. Diabetes Care 2022; 45:e113-e115. [PMID: 35613364 PMCID: PMC9274216 DOI: 10.2337/dc22-0607] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 04/20/2022] [Indexed: 02/03/2023]
Affiliation(s)
- Jing Zhao
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Isabelle Tostivint
- Department of Nephrology, Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France.,Centre of Integrative Chinese Medicine, Sorbonne University, Pitié-Salpêtrière Hospital, Paris, France
| | - Lingdong Xu
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jihan Huang
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Laetitia Gambotti
- Department of Clinical Research, National Cancer Institute, Boulogne-Billancourt, France
| | - Jean-Jacques Boffa
- Centre of Integrative Chinese Medicine, Sorbonne University, Pitié-Salpêtrière Hospital, Paris, France.,Department of Nephrology, Sorbonne University, Hospital Tenon, Paris, France
| | - Min Yang
- Department of Nephrology, The First People's Hospital of Changzhou, Changzhou, China
| | - Ling Wang
- Department of Nephrology, The First People's Hospital of Xuzhou, Xuzhou, China
| | - Zhuxing Sun
- Department of Nephrology, Wuxi People's Hospital, Wuxi, China
| | - Xiaolan Chen
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Amélie Liou-Schischmanoff
- Centre of Integrative Chinese Medicine, Sorbonne University, Pitié-Salpêtrière Hospital, Paris, France.,Department of Pharmacy, Sorbonne University, Pitié Salpêtrière, Paris, France
| | - Alain Baumelou
- Department of Nephrology, Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France.,Centre of Integrative Chinese Medicine, Sorbonne University, Pitié-Salpêtrière Hospital, Paris, France
| | - Teng Ma
- Department of Nephrology, Taizhou Hospital of Traditional Chinese Medicine, Taizhou, China
| | - Guoyuan Lu
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ling Li
- Department of Endocrinology, Zhongda Hospital, Southeast University, Nanjing, China
| | - Dai Chen
- Department of Nephrology, Changzhou Hospital of Traditional Chinese Medicine, Changzhou, China
| | - Laurence Piéroni
- Department of Biochemistry - Hormonology, Sorbonne University, Hospital Tenon, Paris, France
| | - Bingkai Liu
- Centre of Integrative Chinese Medicine, Sorbonne University, Pitié-Salpêtrière Hospital, Paris, France
| | - Xiao Qin
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Weiming He
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yuejuan Wang
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Harvest F Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Wei Sun
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
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12
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Dong H, Feng C, Cai X, Hao Y, Gu X, Cai L, Wu S, Chen J, Liu Z, Xie W, Lu X, Qian H, Liu Y, Cao Y, Zhu J, Xu J, Zhou Y, Ma S, Yang S, Shi Y, Yu H, Shi M, Wang Y, Gu HF, Fan L, Wu L. 7-Methoxyisoflavone ameliorates atopic dermatitis symptoms by regulating multiple signaling pathways and reducing chemokine production. Sci Rep 2022; 12:8760. [PMID: 35610286 PMCID: PMC9130209 DOI: 10.1038/s41598-022-12695-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 05/10/2022] [Indexed: 12/11/2022] Open
Abstract
7-Met, a derivative of soybean isoflavone, is a natural flavonoid compound that has been reported to have multiple signaling pathways regulation effects. This study investigated the therapeutic effects of 7-Met on mice with atopic dermatitis induced by fluorescein isothiocyanate (FITC), or oxazolone (OXZ). 7-Met ameliorated FITC or OXZ-induced atopic dermatitis symptoms by decreasing ear thickness, spleen index, mast cell activation, neutrophil infiltration and serum IgE levels in female BALB/c mice. In FITC-induced atopic dermatitis mice, 7-Met reduced Th1 cytokines production and regulated Th1/Th2 balance by downregulating the secretion of thymic stromal lymphopoietin (TSLP) via inactivation of the NF-κB pathway. In OXZ-induced atopic dermatitis, 7-Met functioned through the reduction of Th17 cytokine production. Our study showed that 7-Methoxyisoflavone alleviated atopic dermatitis by regulating multiple signaling pathways and downregulating chemokine production.
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Affiliation(s)
- Hao Dong
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Chenjie Feng
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Xiyunyi Cai
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Yuanyuan Hao
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Xinyue Gu
- Department of Applied Mathematics and Statistics, The Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Lei Cai
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Shuting Wu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Jiamin Chen
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Zhou Liu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Wen Xie
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Xuanren Lu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Hongfa Qian
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Yulin Liu
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Yiming Cao
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Junlin Zhu
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Jiayi Xu
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Yanjie Zhou
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Shuangyu Ma
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Sha Yang
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Yufeng Shi
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Haojiang Yu
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Minjie Shi
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Yurong Wang
- School of Basic Medicine and Clinical Pharmacy, Center for Pathophysiology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Harvest F Gu
- School of Basic Medicine and Clinical Pharmacy, Center for Pathophysiology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Lei Fan
- Department of Hematology, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210009, People's Republic of China.
| | - Liang Wu
- Jiangsu Key Laboratory of Drug Screening, Institute of Pharmaceutical Sciences, China Pharmaceutical University, Nanjing, 210009, People's Republic of China.
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13
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Li N, Gu HF. Genetic and Biological Effects of SLC12A3, a Sodium-Chloride Cotransporter, in Gitelman Syndrome and Diabetic Kidney Disease. Front Genet 2022; 13:799224. [PMID: 35591852 PMCID: PMC9111839 DOI: 10.3389/fgene.2022.799224] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/12/2022] [Indexed: 11/13/2022] Open
Abstract
The SLC12A3 (Solute carrier family 12 member 3) gene encodes a sodium-chloride cotransporter and mediates Na+ and Cl− reabsorption in the distal convoluted tubule of kidneys. An experimental study has previously showed that with knockdown of zebrafish ortholog, slc12a3 led to structural abnormality of kidney pronephric distal duct at 1-cell stage, suggesting that SLC12A3 may have genetic effects in renal disorders. Many clinical reports have demonstrated that the function-loss mutations in the SLC12A3 gene, mainly including Thr60Met, Asp486Asn, Gly741Arg, Leu859Pro, Arg861Cys, Arg913Gln, Arg928Cys and Cys994Tyr, play the pathogenic effects in Gitelman syndrome. This kidney disease is inherited as an autosomal recessive trait. In addition, several population genetic association studies have indicated that the single nucleotide variant Arg913Gln in the SLC12A3 gene is associated with diabetic kidney disease in type 2 diabetes subjects. In this review, we first summarized bioinformatics of the SLC12A3 gene and its genetic variation. We then described the different genetic and biological effects of SLC12A3 in Gitelman syndrome and diabetic kidney disease. We also discussed about further genetic and biological analyses of SLC12A3 as pharmacokinetic targets of diuretics.
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Affiliation(s)
- Nan Li
- Department of Endocrinology, Jiangsu Province Hospital of Traditional Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Harvest F. Gu
- Laboratory of Molecular Medicine, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- *Correspondence: Harvest F. Gu,
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14
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Cheng Z, Gu R, Lian Z, Gu HF. Evaluation of the association between maternal folic acid supplementation and the risk of congenital heart disease: a systematic review and meta-analysis. Nutr J 2022; 21:20. [PMID: 35346212 PMCID: PMC8962131 DOI: 10.1186/s12937-022-00772-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/12/2022] [Indexed: 11/10/2022] Open
Abstract
Background Folic acid (FA), as a synthetic form of folate, has been widely used for dietary supplementation in pregnant women. The preventive effect of FA supplementation on the occurrence and recurrence of fetal neural tube defects (NTD) has been confirmed. Incidence of congenital heart diseases (CHD), however, has been parallelly increasing worldwide. The present study aimed to evaluate whether FA supplementation is associated with a decreased risk of CHD. Methods We searched the literature using PubMed, Web of Science and Google Scholar, for the peer-reviewed studies which reported CHD and FA and followed with a meta-analysis. The study-specific relative risks were used as summary statistics for the association between maternal FA supplementation and CHD risk. Cochran's Q and I2 statistics were used to test for the heterogeneity. Results Maternal FA supplementation was found to be associated with a decreased risk of CHD (OR = 0.82, 95% CI: 0.72–0.94). However, the heterogeneity of the association was high (P < 0.001, I2 = 92.7%). FA supplementation within 1 month before and after pregnancy correlated positively with CHD (OR 1.10, 95%CI 0.99–1.23), and high-dose FA intake is positively associated with atrial septal defect (OR 1.23, 95%CI 0.64–2.34). Pregnant women with irrational FA use may be at increased risk for CHD. Conclusions Data from the present study indicate that the heterogeneity of the association between maternal FA supplementation and CHD is high and suggest that the real relationship between maternal FA supplementation and CHD may need to be further investigated with well-designed clinical studies and biological experiments. Supplementary Information The online version contains supplementary material available at 10.1186/s12937-022-00772-2.
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Affiliation(s)
- Zhengpei Cheng
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.,Strathclyde Institute of Pharmacology and Biomedical Science, University of Strathclyde, 16 Richmond St Glasgow, Glasgow, G1 1XQ, Scotland
| | - Rui Gu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Zenglin Lian
- Institute of Biological Chinese Medicine, Beijing Yichuang Institute of Biotechnology Industry, Beijing, China
| | - Harvest F Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China.
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15
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You Q, Shen Y, Wu Y, Li Y, Liu C, Huang F, Gu HF, Wu J. Neutrophil Extracellular Traps Caused by Gut Leakage Trigger the Autoimmune Response in Nonobese Diabetic Mice. Front Immunol 2022; 12:711423. [PMID: 35111148 PMCID: PMC8801438 DOI: 10.3389/fimmu.2021.711423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 12/27/2021] [Indexed: 01/14/2023] Open
Abstract
Increased formation of neutrophil extracellular traps (NETs) is associated with gut leakage in type 1 diabetes (T1D). To explore the mechanism of how enteropathy exacerbated by NETs triggers pancreatic autoimmunity in T1D, we carried out a correlation analysis for NET formation with gut barrier functions and autoimmunity in nonobese diabetic (NOD) mice. Inducing chronic colitis or knocking out of peptidyl arginine deiminase type 4 (PAD4) in NOD mice were used to further study the effect of NET formation on the progression of T1D. Microbial alterations in Deferribacteres and Proteobacteria, along with the loss of gut barrier function, were found to be associated with increased endotoxin and abnormal formation of NETs in NOD mice. Both DSS-induced colitis and knockout of PAD4 in NOD mice indicated that PAD4-dependent NET formation was involved in the aggravation of gut barrier dysfunction, the production of autoantibodies, and the activation of enteric autoimmune T cells, which then migrated to pancreatic lymph nodes (PLNs) and caused self-damage. The current study thus provides evidence that PAD4-dependent NET formation is engaged in leaky gut triggering pancreatic autoimmunity and suggests that either degradation of NETs or inhibition of NET formation may be helpful for innovative therapeutic interventions in T1D.
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Affiliation(s)
- Qi You
- College of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yiming Shen
- College of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yiling Wu
- College of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yuyan Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Chang Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Fengjie Huang
- College of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jie Wu
- College of Life Science and Technology, China Pharmaceutical University, Nanjing, China
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16
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Chen X, Liu C, Yang S, Yang Y, Chen Y, Zhao X, Zhu W, Zhao Q, Ni C, Huang X, Yan W, Shen C, Gu HF. Gender Specificity and Local Socioeconomic Influence on Association of GHR fl/d3 Polymorphism With Growth and Metabolism in Children and Adolescents. Front Pediatr 2022; 10:546080. [PMID: 35402349 PMCID: PMC8984194 DOI: 10.3389/fped.2022.546080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 01/24/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE Growth hormone receptor (GHR) mediates most GH biological actions. This study is aimed to evaluate whether GHR fl/d3 polymorphism contributes to the inter-individual variability of growth and metabolism in healthy children and adolescents. METHODS A total of 4,730 students aged 6-16 years from Yixing and Suqian City in China were included in this cross-sectional study. Height and body mass index (BMI) were transformed into the form of z-score corresponding to age and gender. Logistic regression was used to evaluate the associations of GHR fl/d3 polymorphism with height, BMI, metabolic traits, and hypertension by estimating the odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS GHR d3 allele was inversely associated with overweight, total cholesterol (TC) and triglyceride (TG) levels (OR [95% CI] for overweight: 0.754 [0.593-0.959], P = 0.021; OR [95% CI] for TC: 0.744 [0.614-0.902], P = 0.003; OR [95% CI] for TG: 0.812 [0.654-0.998], P = 0.047). GHR d3 allele was associated with decreased odds of pre-hypertension in boys (OR [95% CI]: 0.791 [0.645-0.971], P = 0.025), but associated with increased odds of pre-hypertension and hypertension in girls (ORs [95% CIs]: 1.379 [1.106-1.719], P = 0.004; OR [95% CI]: 1.240 [1.013-1.519], P = 0.037). Interaction of GHR fl/d3 polymorphism with gender contributed to increased odds of pre-hypertension and hypertension (interactive ORs [95% CIs]: 1.735 [1.214-2.481], P = 0.003; OR [95% CI]: 1.509 [1.092-2.086], P = 0.013). Stratification analysis showed that the correlation tendencies of GHR fl/d3 polymorphism and BMI with age were different between two cities with discrepant economic development levels. CONCLUSION GHR fl/d3 polymorphism is associated with growth, metabolism, and hypertension in children and adolescents with the gender specificity, and the genetic effect of GHR fl/d3 may be modified by the local socioeconomic levels.
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Affiliation(s)
- Xiaotian Chen
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China
| | - Chunlan Liu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Song Yang
- Department of Cardiology, People's Hospital of Yixing City, Affiliated Yixing People's Hospital of Jiangsu University, Yixing, China
| | - Yaming Yang
- Center for Disease Control and Prevention of Yixing City, Yixing, China
| | - Yanchun Chen
- Department of Cardiology, People's Hospital of Yixing City, Affiliated Yixing People's Hospital of Jiangsu University, Yixing, China
| | - Xianghai Zhao
- Department of Cardiology, People's Hospital of Yixing City, Affiliated Yixing People's Hospital of Jiangsu University, Yixing, China
| | - Weiguang Zhu
- Center for Disease Control and Prevention of Suqian City, Suqian, China
| | - Qihui Zhao
- Center for Disease Control and Prevention of Suqian City, Suqian, China
| | - Chuan Ni
- Center for Disease Control and Prevention of Suqian City, Suqian, China
| | - Xiangyuan Huang
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China
| | - Weili Yan
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China
| | - Chong Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Harvest F Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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17
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Wu L, Wang Y, Wang X, Liao J, Dong H, Cai X, Wang Y, Gu HF. Evaluation of Colocasia esculenta Schott in anti-cancerous properties with proximity extension assays. Food Nutr Res 2021; 65:7549. [PMID: 34908921 PMCID: PMC8634378 DOI: 10.29219/fnr.v65.7549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 07/05/2021] [Accepted: 09/14/2021] [Indexed: 11/20/2022] Open
Abstract
Background Colocasia esculenta Schott (called as Xiangshayu in Chinese) is an excellent local cultivar of the genus polymorpha in Jiangsu Province, China. Objective In the present study, we have performed a comparative study before and after dietary consumption with Colocasia esculenta Schott to evaluate its anti-cancerous properties. Design Forty-two healthy volunteers were recruited, and dietary consumption with 200 g of tap water cooked Colocasia esculenta Schott daily was conducted for 1 month. Plasma samples from the subjects before and after dietary consumption with Colocasia esculenta Schott were analyzed with proximity extension assays for the alteration of 92 proteins in relation with cancers, while blood samples were examined for physiological parameters with an automatic biochemical analyzer. Bioinformatic analyses were conducted using MalaCards and GEPIA. Results After taking dietary consumption with Colocasia esculenta Schott, circulating CYR61, ANXA1, and VIM protein levels in the subjects was found to be most significantly downregulated, while for ITGB5, EPHA2, and CEACAM1, it was upregulated. Alternation of these proteins was predicted to be associated with the development of tumors such as pancreatic adenocarcinoma and breast and prostate cancers. Conclusion The present study provides evidence that Colocasia esculenta Schott, as a healthy food, has anti-cancerous properties. Further investigation of phytochemistry in Colocasia esculenta Schott has been taken into our consideration.
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Affiliation(s)
- Liang Wu
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, China.,Department of Pharmacology, China Pharmaceutical University, Nanjing, China
| | - Yuxuan Wang
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, China
| | - Xiaoyan Wang
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, China
| | - Jun Liao
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Hao Dong
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, China
| | - Xiyunyi Cai
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, China
| | - Yurong Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Harvest F Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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He Y, Zhang C, Luo Y, Chen J, Yang M, Li L, Gu HF, Yang G, Zhang X. Hypothalamic BMP9 suppresses glucose production by central PI3K/Akt/mTOR pathway. J Endocrinol 2021; 248:221-235. [PMID: 33337347 DOI: 10.1530/joe-19-0591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 12/16/2020] [Indexed: 11/08/2022]
Abstract
Bone morphogenetic proteins (BMPs) are secreted ligands that belong to the transforming growth factor-β (TGF-β) superfamily. BMP7 has been reported to play a role in reversing obesity and regulating appetite in the hypothalamus. Whether BMP9 plays a central role in regulating glucose metabolism and insulin sensitivity remains unclear. Here, we investigated the impact of central BMP9 signaling and possible route of transmission. We performed intracerebroventricular (ICV) surgery and injected adenovirus expressing BMP9 (Ad-BMP9) into the cerebral ventricle of mice. Metabolic analysis, hyperinsulinemic-euglycemic clamp test, and analysis of phosphatidylinositol 3,4,5-trisphosphate (PIP3) formation were then performed. Real-time PCR and Western blotting were performed to detect gene expression and potential pathways involved. We found that hypothalamic BMP9 expression was downregulated in obese and insulin-resistant mice. Overexpression of BMP9 in the mediobasal hypothalamus reduced food intake, body weight, and blood glucose level, and elevated the energy expenditure in high-fat diet (HFD)-fed mice. Importantly, central treatment with BMP9 improved hepatic insulin resistance (IR) and inhibited hepatic glucose production in HFD-fed mice. ICV BMP9-induced increase in hepatic insulin sensitivity and related metabolic effects were blocked by ICV injection of rapamycin, an inhibitor of mammalian target of rapamycin (mTOR) signaling. In addition, ICV BMP9 promoted the ability of insulin to activate the insulin receptor/phosphoinositide 3-kinase (PI3K)/Akt pathway in the hypothalamus. Thus, this study provides insights into the potential mechanism by which central BMP9 ameliorates hepatic glucose metabolism and IR via activating the mTOR/PI3K/Akt pathway in the hypothalamus.
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Affiliation(s)
- Yirui He
- The Center of Clinical Research of Endocrinology and Metabolic Diseases in Chongqing and Department of Endocrinology, Chongqing Three Gorges Central Hospital, Chongqing, China
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Cheng Zhang
- The Center of Clinical Research of Endocrinology and Metabolic Diseases in Chongqing and Department of Endocrinology, Chongqing Three Gorges Central Hospital, Chongqing, China
| | - Yong Luo
- The Center of Clinical Research of Endocrinology and Metabolic Diseases in Chongqing and Department of Endocrinology, Chongqing Three Gorges Central Hospital, Chongqing, China
| | - Jinhua Chen
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Mengliu Yang
- The Center of Clinical Research of Endocrinology and Metabolic Diseases in Chongqing and Department of Endocrinology, Chongqing Three Gorges Central Hospital, Chongqing, China
| | - Ling Li
- Key Laboratory of Diagnostic Medicine (Ministry of Education) and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Harvest F Gu
- Department of Clinical Science, Intervention and Technology, Karolinska University Hospital, Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Gangyi Yang
- The Center of Clinical Research of Endocrinology and Metabolic Diseases in Chongqing and Department of Endocrinology, Chongqing Three Gorges Central Hospital, Chongqing, China
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xianxiang Zhang
- The Center of Clinical Research of Endocrinology and Metabolic Diseases in Chongqing and Department of Endocrinology, Chongqing Three Gorges Central Hospital, Chongqing, China
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Zhang X, Guan T, Yang B, Chi Z, Wan Q, Gu HF. SLC30A7 has anti-oxidant stress effects in high glucose-induced apoptosis via the NFE2L2/HMOX1 signal transduction pathway. Diabetes Res Clin Pract 2021; 172:108445. [PMID: 32949653 DOI: 10.1016/j.diabres.2020.108445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/10/2020] [Indexed: 01/13/2023]
Abstract
AIMS Apoptosis and oxidant stress are known to be involved in the pathogenesis of diabetic kidney disease (DKD). We have previously reported that zinc transporter 7 in SLC30 family (SLC30A7) inhibits apoptosis in rat peritoneal mesothelial cells under high glucose (HG) conditions. In the current study, we aimed to investigate whether SLC30A7 had effect for anti-oxidant stress in renal tubular epithelial cells under HG. METHODS SLC30A7 in HG-induced apoptosis in a normal rat kidney tubular epithelial cell line (NRK-52E cells)/kidneys of STZ-induced diabetic mice was examined and the activity of nuclear factor erythroid 2-related factor 2 (NFE2L2) was further analyzed by using real time RT-PCR, siRNA and Western blot protocols. RESULTS SLC30A7 was found to be up-regulated, while NFE2L2 was activated in kidneys of STZ-induced diabetic mice and HG-induced apoptosis of NRK-52E cells. Knock-down of SLC30A7 with siRNA protocol resulted in lower intracellular free zinc levels in the cells and decreased zinc distribution in the Golgi apparatus. Furthermore, knock-down of NFE2L2 down-regulated its target HMOX1 gene expression, decreased SLC30A7 activity but increased HG-induced apoptosis. CONCLUSION The current study provides new evidence that SLC30A7 has anti-oxidant stress effects in HG-induced apoptosis via the NFE2L2/HMOX1 signal transduction pathway.
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Affiliation(s)
- Xiuli Zhang
- Department of Nephrology, Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province 518000, PR China; Department of Pathophysiology, China Medical University, Shenyang, Liaoning Province 110001, PR China.
| | - Tingwen Guan
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning Province 110001, PR China
| | - Boxuan Yang
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning Province 110001, PR China
| | - Zhihong Chi
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning Province 110001, PR China
| | - Qijun Wan
- Department of Nephrology, Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province 518000, PR China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province 210009, PR China.
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Liu X, Zhang X, Cai X, Dong J, Chi Y, Chi Z, Gu HF. Effects of Curcumin on High Glucose-Induced Epithelial-to-Mesenchymal Transition in Renal Tubular Epithelial Cells Through the TLR4-NF-κB Signaling Pathway. Diabetes Metab Syndr Obes 2021; 14:929-940. [PMID: 33688227 PMCID: PMC7936700 DOI: 10.2147/dmso.s296990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/03/2021] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE Diabetic kidney disease (DKD) is a microvascular complication in diabetes mellitus, while tubuloepithelial to mesenchymal transition (EMT) of mature tubular epithelial cells is a key point in the early development and progression of renal interstitial fibrosis. The present study aimed to investigate the protective effects of Curcumin on EMT and fibrosis in cultured normal rat kidney tubular epithelial cell line (NRK-52E). METHODS By using immunofluorescence staining and Western blot protocols, in vitro experiments were designed to analyze EMT markers, including collagen I and E-cadherin in high glucose (HG) exposed NRK-52E cells and to detect the expression levels of phosphorylated-NF-κB, TLR4 and reactive oxygen species (ROS) after Curcumin pre-treatment. With co-treatment with TAK242, these molecules in the TLR4-NF-κB signaling pathway were further evaluated. RESULTS Curcumin decreased the HG-induced EMT levels and ROS production in NRK-52E cells. Furthermore, Curcumin was found to inhibit the TLR4-NF-κB signaling activation in HG-induced EMT of NRK-52E cells. CONCLUSION The present study provides evidence suggesting a novel mechanism that Curcumin exerts the anti-fibrosis effects via inhibiting activation of the TLR4-NF-κB signal pathway and consequently protecting the HG-induced EMT in renal tubular epithelial cells. Thereby, TLR4-NF-κB may be a useful target for therapeutic intervention in DKD.
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Affiliation(s)
- Xinhui Liu
- Traditional Chinese Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning Province, 110847, People’s Republic of China
| | - Xiuli Zhang
- Department of Nephrology, Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, 518000, People’s Republic of China
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning Province, 110001, People’s Republic of China
- Correspondence: Xiuli Zhang Department of Nephrology, Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, 518000, People’s Republic of China Email
| | - Xiaoyi Cai
- Department of Nephrology, Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, 518000, People’s Republic of China
| | - Jiqiu Dong
- Department of Nephrology, Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, 518000, People’s Republic of China
| | - Yinmao Chi
- Department of Physiology, China Medical University, Shenyang, Liaoning Province, 110001, People’s Republic of China
| | - Zhihong Chi
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning Province, 110001, People’s Republic of China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, 210009, People’s Republic of China
- Harvest F Gu Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, 210009, People’s Republic of China Email
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Abstract
BACKGROUND China, as the largest developing country in the world, has experienced rapid economic development during the past decades. As a side effect of the rapid growth of Chinese economy, air pollution in the form of haze is harmful to human health. INTRODUCTION China is also one of the countries with the highest prevalence of diabetes in Asia and has the largest burden of diabetes in the world. Recent evidence suggests a positive correlation between air pollution and the increased risk of diabetes. However, the association of haze with diabetes is still unclear. METHODS Based upon literature searching with PubMed, the information on haze and prevalence of diabetes in different cities or provinces of China is summarized. The possible association of haze with diabetes and the perspectives of haze research particularly in the prevention of haze in China are then discussed. RESULTS The exposure of long-term air pollution such as haze reduces insulin-dependent glucose uptake, leading to insulin resistance; damages beta cell function, leading to decreased insulin secretion, and promotes subcutaneous fat accumulation. Pathophysiological effects of particulate matters in diabetes through inflammation and oxidative stress were evidenced by several epidemiological and experimental studies. CONCLUSION A better understanding of the incidence of diabetes caused by haze exposure may facilitate policy development in air pollution prevention and intervention design in diabetes prevention. Continuous improvement in air quality may help to reduce diabetes prevalence in China.
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Affiliation(s)
- Jun Sun
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, 210009 Nanjing, China
| | - Jie Ji
- Institute of Environment, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Yurong Wang
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 210009 Nanjing, China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 210009 Nanjing, China
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22
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Ekberg NR, Eliasson S, Li YW, Zheng X, Chatzidionysiou K, Falhammar H, Gu HF, Catrina SB. Corrigendum to "Protective Effect of the HIF-1A Pro582Ser Polymorphism on Severe Diabetic Retinopathy". J Diabetes Res 2021; 2021:9827150. [PMID: 34124271 PMCID: PMC8172312 DOI: 10.1155/2021/9827150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 05/08/2021] [Indexed: 11/17/2022] Open
Abstract
[This corrects the article DOI: 10.1155/2019/2936962.].
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Affiliation(s)
- Neda Rajamand Ekberg
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Centrum for Diabetes, Academic Specialist Centrum, Stockholm, Sweden
| | - Sofie Eliasson
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Young Wen Li
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pharmacology, Guilin Medical University, Guilin, China
| | - Xiaowei Zheng
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Katerina Chatzidionysiou
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
| | - Henrik Falhammar
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Harvest F. Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Sergiu-Bogdan Catrina
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Centrum for Diabetes, Academic Specialist Centrum, Stockholm, Sweden
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Li N, Tang H, Wu L, Ge H, Wang Y, Yu H, Zhang X, Ma J, Gu HF. Back Cover Image. Phytother Res 2021. [DOI: 10.1002/ptr.7035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Li N, Tang H, Wu L, Ge H, Wang Y, Yu H, Zhang X, Ma J, Gu HF. Chemical constituents, clinical efficacy and molecular mechanisms of the ethanol extract of Abelmoschus manihot flowers in treatment of kidney diseases. Phytother Res 2020; 35:198-206. [PMID: 32716080 PMCID: PMC7891592 DOI: 10.1002/ptr.6818] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/24/2020] [Accepted: 07/02/2020] [Indexed: 02/06/2023]
Abstract
Abelmoschus manihot, also called as “Huangkui” in Chinese, is an annual flowering herb plant in the family of Malvaceae. As a traditional Chinese medicine, the ethanol extract of the flower in Abelmoschus manihot is made as Huangkui capsule and has been used for medication of the patients with kidney diseases. Its efficacy in clinical symptoms is mainly improving renal function and reducing proteinuria among the patients with chronic kidney disease, diabetic kidney disease or IgA nephropathy. The possible mechanism of Huangkui capsule treatment in kidney diseases may include reducing inflammation and anti‐oxidative stress, improving immune response, protecting renal tubular epithelial cells, ameliorating podocyte apoptosis, glomerulosclerosis and mesangial proliferation, as well as inhibiting renal fibrosis. In this review, we first described chemical constituents and pharmacokinetic characteristics in ethanol extract of the flower of Abelmoschus manihot. We then summarized the clinical and epidemiological relevancies of kidney diseases particularly in the mainland of China and discussed the possible molecular mechanisms of Huangkui capsule in the treatment of kidney diseases. Finally, we prospected further research on cellular and molecular mechanisms and application of this Chinese natural medicine in kidney diseases.
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Affiliation(s)
- Nan Li
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, Pharmaceutical University, Nanjing, Jiangsu Province, China.,Department of Endocrinology, Jiangsu Province Hospital of Traditional Chinese Medicine, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Haitao Tang
- Suzhong Pharmaceutical Research Institute, Nanjing, Jiangsu Province, China
| | - Liang Wu
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, Jiangsu Province, China.,Department of Pharmacology, China Pharmaceutical University, Nanjing, Jiangsu Province, China
| | - Haitao Ge
- Suzhong Pharmaceutical Research Institute, Nanjing, Jiangsu Province, China
| | - Yurong Wang
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, Pharmaceutical University, Nanjing, Jiangsu Province, China
| | - Honglin Yu
- Suzhong Pharmaceutical Research Institute, Nanjing, Jiangsu Province, China
| | - Xiuli Zhang
- Department of Nephrology, Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, China
| | - Jimei Ma
- Suzhong Pharmaceutical Research Institute, Nanjing, Jiangsu Province, China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, Pharmaceutical University, Nanjing, Jiangsu Province, China
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Wu T, Zhang Q, Wu S, Hu W, Zhou T, Li K, Liu D, Gu HF, Zheng H, Zhu Z, Li L, Yang G. CILP-2 is a novel secreted protein and associated with insulin resistance. J Mol Cell Biol 2020; 11:1083-1094. [PMID: 30896018 PMCID: PMC6934158 DOI: 10.1093/jmcb/mjz016] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 01/17/2019] [Accepted: 02/26/2019] [Indexed: 12/22/2022] Open
Abstract
Genetic association studies have implicated that cartilage intermediate layer protein 2 (CILP-2) confers the risk susceptibility for type 2 diabetes (T2DM). However, it is still unknown whether CILP-2 is involved in the regulation of glucose homeostasis and insulin resistance (IR). In the current study, we initially observed that CILP-2 as a secreted protein was detected in both conditioned medium and lysates of cells transfected with an overexpressed vector. We then found that circulating CILP-2 levels had a progressive increase from normal to impaired glucose tolerance (a pre-diabetic status) and then to diabetes, which was correlated positively with waist-to-hip ratio, triglyceride, fasting blood glucose, 2-h blood glucose after glucose overload, HbA1c, fasting insulin, 2-h plasma insulin after glucose overload, and homeostasis model assessment of insulin resistance but negatively with HDL-C. CILP-2 expression was increased in the liver and muscle but decreased in adipose tissues of obese mice or T2DM patients. Furthermore, we demonstrated that CILP-2 circulating levels were affected by OGTT and Exenatide. CILP-2 overexpression resulted in impaired glucose tolerance and hepatic IR in vivo and increased PEPCK expression whereas suppressed phosphorylation of insulin receptor and Akt kinase in vitro. Based on these findings, we have identified a direct interaction between CILP-2 and PEPCK and suggested that CILP-2 plays an important role in the regulation of hepatic glucose production.
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Affiliation(s)
- Tong Wu
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Qin Zhang
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Shaobo Wu
- Key Laboratory of Diagnostic Medicine (Ministry of Education) and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Wenjing Hu
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Tingting Zhou
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Ke Li
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Dongfang Liu
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Hongting Zheng
- Department of Endocrinology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Chongqing Institute of Hypertension, Chongqing, China
| | - Ling Li
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Gangyi Yang
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing Clinical Research Center for Geriatrics, Chongqing, China
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Zhang X, Guan T, Yang B, Gu HF, Chi Z. Effects of ZnT8 on epithelial-to-mesenchymal transition and tubulointerstitial fibrosis in diabetic kidney disease. Cell Death Dis 2020; 11:544. [PMID: 32681069 PMCID: PMC7367835 DOI: 10.1038/s41419-020-2731-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/21/2020] [Accepted: 06/25/2020] [Indexed: 12/31/2022]
Abstract
Zinc transporter 8 (ZnT8) transports zinc ions for crystallization and storage of insulin in pancreatic beta-cells and ZnT8 dysfunction is involved in pathogenesis of diabetes. The current study aimed to investigate whether ZnT8 has effects in pathophysiology of diabetic kidney disease (DKD) by using animal models for diabetes, including STZ-induced diabetic, db/db, ZnT8-KO, ZnT8-KO-STZ and ZnT8-KO-db/db mice. Results demonstrated that urine albumin to creatinine ratio and epithelial-to-mesenchymal transition (EMT) were increased in kidneys of ZnT8-KO-STZ and ZnT8-KO-db/db mice compared with C57BL/6 J and ZnT8-KO mice, while serum TGF-β1, IL-6, and TNF-α levels were elevated in parallel. In kidneys of mice intercrossed between ZnT8-KO and STZ-induced diabetic or db/db mice, these three inflammatory factors, ACR and EMT were also found to be increased compared with C57BL/6J, db/db and ZnT8-KO mice. Furthermore, ZnT8 up-regulation by hZnT8-EGFP reduced the levels of high glucose (HG)-induced EMT and inflammatory factors in normal rat kidney tubular epithelial cell (NRK-52E cells). Expression of phosphorylated Smad2/Smad3 was up-regulated after HG stimulation and further enhanced by ZnT8 siRNA but down-regulated after hZnT8-EGFP gene transfection. The current study thus provides the first evidence that ZnT8 protects against EMT-tubulointerstitial fibrosis though the restrain of TGF-β1/Smads signaling activation in DKD.
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Affiliation(s)
- Xiuli Zhang
- Department of Nephrology, Second People's Hospital, The First Affiliated Hospital of Shenzhen University, 518000, Shenzhen, Guangdong Province, P.R. China.,Department of Pathophysiology, China Medical University, 110001, Shenyang, Liaoning Province, P.R. China
| | - Tingwen Guan
- Department of Pathophysiology, China Medical University, 110001, Shenyang, Liaoning Province, P.R. China
| | - Boxuan Yang
- Department of Pathophysiology, China Medical University, 110001, Shenyang, Liaoning Province, P.R. China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 210009, Nanjing, Jiangsu Province, P.R. China.
| | - Zhihong Chi
- Department of Pathophysiology, China Medical University, 110001, Shenyang, Liaoning Province, P.R. China.
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Su J, Wang H, Tian Y, Hu H, Gu W, Zhang T, Li M, Shen C, Gu HF. Impact of physical exercise intervention and PPARγ genetic polymorphisms on cardio-metabolic parameters among a Chinese youth population. BMJ Open Sport Exerc Med 2020; 6:e000681. [PMID: 32341796 PMCID: PMC7173993 DOI: 10.1136/bmjsem-2019-000681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2020] [Indexed: 11/24/2022] Open
Abstract
Objective Physical inactivity inChinese youth students particularly in senior high schools, who participate inthe National Higher Education Entrance Examination (NCEE) is very common. Inorder to explore the beneficial effects from physical exercise and education afterNCEE, we performed a Physicalexercise Intervention Program in the Youth (PiPy) to evaluate the interaction with PPARγ genetic variants on cardiovascular and metabolicparameters. Methods A total of 772 freshmen (males 610/females162) from high schools to university were recruited into the PiPy cohort, which was designedaccording to the National Student Health Standards in China. Anthropometric data were collected, whilephysical activities and body composition at the baseline of PiPy cohort weremeasured with SECAprotocols. Eighttagged single nucleotide polymorphisms (SNPs) in the PPARγ gene were genotyped with TaqMan allelicdiscrimination. Results After physical exercise intervention forthree months, in parallel with increased physical activities, BMI and skeletalmuscle content in all subjects was enhanced, while heart rate and bloodpressures were decreased. Furthermore, SNPs in 5’-UTR of the PPARγ gene, including rs2920502, rs9817428 and rs2972164, were found to be associated with the changes of BMI. Body weight in the subjects with BMI <18.5and 18.5-23.9 kg/m2 were increased, while the obese subjects (BMI ≥24.0 kg/m2) decreased. Conclusion The present study for the first timedemonstrated that the PiPy could improve cardio-metabolic parameters such asheart rate, blood pressures and BMI for Chinese youth students after NCEE, inwhich the genetic interactive effects of PPARγ should be included into obesityintervention.
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Affiliation(s)
- Juan Su
- Department of Physical Education, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Hui Wang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yuanrui Tian
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Haixu Hu
- Department of Physical Education, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Wanjian Gu
- Department of Clinical Laboratory, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Ting Zhang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Mengxia Li
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Chong Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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28
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Affiliation(s)
- Martin H. de Borst
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- *Correspondence: Martin H. de Borst
| | - Harvest F. Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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29
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Zhang X, Seman NA, Falhammar H, Brismar K, Gu HF. Genetic and Biological Effects of ICAM-1 E469K Polymorphism in Diabetic Kidney Disease. J Diabetes Res 2020; 2020:8305460. [PMID: 32626783 PMCID: PMC7313107 DOI: 10.1155/2020/8305460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/22/2020] [Indexed: 12/19/2022] Open
Abstract
Diabetic kidney disease (DKD) is a complex disease, in which local inflammatory stress results from both metabolic and hemodynamic derangements. Intercellular adhesion molecule 1 (ICAM-1) is an acute-phase protein marker of inflammation. In the recent years, clinical observations have reported that increased serum/plasma ICAM-1 levels are positively correlated with albuminuria in the patients with type 1 (T1D) and type 2 diabetes (T2D). Genetic association studies have demonstrated that genetic polymorphisms, including SNP rs5498 (E469K, G/A), in the ICAM1 gene is associated with DKD. rs5498 is a nonsynonymous SNP and caused by substitution between E (Glu) and K (Lys) for ICAM-1 protein. In this review, we first summarized the genetic effects of ICAM1 E469K polymorphism in DKD and then demonstrated the possible changes of ICAM-1 protein crystal structures according to the genotypes of this polymorphism. Finally, we discussed the genetic effects of the ICAM1 E469K polymorphism and the biological role of increased circulating ICAM-1 protein and its formation changes in DKD.
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Affiliation(s)
- Xiuli Zhang
- Department of Nephrology, The second People's Hospital, Shenzhen, The first Affiliated Hospital of Shenzhen University, Guangdong 518000, China
| | - Norhashimah Abu Seman
- Cardiovascular, Diabetes and Nutrition Research Center, Institute for Medical Research, Kuala Lumpur 50588, Malaysia
| | - Henrik Falhammar
- Rolf Luft Research Center for Diabetes and Endocrinology, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm 17176, Sweden
- Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm 17176, Sweden
| | - Kerstin Brismar
- Rolf Luft Research Center for Diabetes and Endocrinology, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm 17176, Sweden
| | - Harvest F. Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China
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30
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Zhang C, Luo X, Chen J, Zhou B, Yang M, Liu R, Liu D, Gu HF, Zhu Z, Zheng H, Li L, Yang G. Osteoprotegerin Promotes Liver Steatosis by Targeting the ERK-PPAR-γ-CD36 Pathway. Diabetes 2019; 68:1902-1914. [PMID: 31292134 DOI: 10.2337/db18-1055] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 07/02/2019] [Indexed: 11/13/2022]
Abstract
Previous cross-sectional studies have established that circulating osteoprotegerin (OPG) levels are associated with nonalcoholic fatty liver disease (NAFLD). However, the role of OPG in metabolic diseases, such as diabetes and NAFLD, is still unclear. In the current study, we demonstrated that hepatic OPG expression was downregulated in NAFLD individuals and in obese mice. OPG deficiency decreased lipid accumulation and expression of CD36 and peroxisome proliferator-activated receptor-γ (PPAR-γ) in the livers of OPG-/- mice and cultured cells, respectively, whereas OPG overexpression elicited the opposite effects. The stimulatory role of OPG in lipid accumulation was blocked by CD36 inactivation in hepatocytes isolated from CD36-/- mice. The overexpression of OPG led to a decrease in extracellular signal-regulated kinase (ERK) phosphorylation in the livers of OPG-/- mice and in cultured cells, while OPG deficiency resulted in the opposite effect. The inhibition of PPAR-γ or the activation of ERK blocked the induction of CD36 expression by OPG in cultured cells. Mechanistically, OPG facilitated CD36 expression by acting on PPAR response element (PPRE) present on the CD36 promoter. Taken together, our study revealed that OPG signaling promotes liver steatosis through the ERK-PPAR-γ-CD36 pathway. The downregulation of OPG in NAFLD might be a compensatory response of the body to dampen excess hepatic fat accumulation in obesity.
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Affiliation(s)
- Cheng Zhang
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- Key Laboratory of Diagnostic Medicine (Ministry of Education) and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Xiaohe Luo
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Jianrong Chen
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Baoyong Zhou
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Mengliu Yang
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Rui Liu
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Dongfang Liu
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Harvest F Gu
- Department of Clinical Science, Intervention and Technology, Karolinska University Hospital, Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Daping Hospital, Chongqing Institute of Hypertension, Third Military Medical University, Chongqing, China
| | - Hongting Zheng
- Department of Endocrinology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Ling Li
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Gangyi Yang
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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31
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Salem RM, Todd JN, Sandholm N, Cole JB, Chen WM, Andrews D, Pezzolesi MG, McKeigue PM, Hiraki LT, Qiu C, Nair V, Di Liao C, Cao JJ, Valo E, Onengut-Gumuscu S, Smiles AM, McGurnaghan SJ, Haukka JK, Harjutsalo V, Brennan EP, van Zuydam N, Ahlqvist E, Doyle R, Ahluwalia TS, Lajer M, Hughes MF, Park J, Skupien J, Spiliopoulou A, Liu A, Menon R, Boustany-Kari CM, Kang HM, Nelson RG, Klein R, Klein BE, Lee KE, Gao X, Mauer M, Maestroni S, Caramori ML, de Boer IH, Miller RG, Guo J, Boright AP, Tregouet D, Gyorgy B, Snell-Bergeon JK, Maahs DM, Bull SB, Canty AJ, Palmer CNA, Stechemesser L, Paulweber B, Weitgasser R, Sokolovska J, Rovīte V, Pīrāgs V, Prakapiene E, Radzeviciene L, Verkauskiene R, Panduru NM, Groop LC, McCarthy MI, Gu HF, Möllsten A, Falhammar H, Brismar K, Martin F, Rossing P, Costacou T, Zerbini G, Marre M, Hadjadj S, McKnight AJ, Forsblom C, McKay G, Godson C, Maxwell AP, Kretzler M, Susztak K, Colhoun HM, Krolewski A, Paterson AD, Groop PH, Rich SS, Hirschhorn JN, Florez JC. Genome-Wide Association Study of Diabetic Kidney Disease Highlights Biology Involved in Glomerular Basement Membrane Collagen. J Am Soc Nephrol 2019; 30:2000-2016. [PMID: 31537649 DOI: 10.1681/asn.2019030218] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/08/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Although diabetic kidney disease demonstrates both familial clustering and single nucleotide polymorphism heritability, the specific genetic factors influencing risk remain largely unknown. METHODS To identify genetic variants predisposing to diabetic kidney disease, we performed genome-wide association study (GWAS) analyses. Through collaboration with the Diabetes Nephropathy Collaborative Research Initiative, we assembled a large collection of type 1 diabetes cohorts with harmonized diabetic kidney disease phenotypes. We used a spectrum of ten diabetic kidney disease definitions based on albuminuria and renal function. RESULTS Our GWAS meta-analysis included association results for up to 19,406 individuals of European descent with type 1 diabetes. We identified 16 genome-wide significant risk loci. The variant with the strongest association (rs55703767) is a common missense mutation in the collagen type IV alpha 3 chain (COL4A3) gene, which encodes a major structural component of the glomerular basement membrane (GBM). Mutations in COL4A3 are implicated in heritable nephropathies, including the progressive inherited nephropathy Alport syndrome. The rs55703767 minor allele (Asp326Tyr) is protective against several definitions of diabetic kidney disease, including albuminuria and ESKD, and demonstrated a significant association with GBM width; protective allele carriers had thinner GBM before any signs of kidney disease, and its effect was dependent on glycemia. Three other loci are in or near genes with known or suggestive involvement in this condition (BMP7) or renal biology (COLEC11 and DDR1). CONCLUSIONS The 16 diabetic kidney disease-associated loci may provide novel insights into the pathogenesis of this condition and help identify potential biologic targets for prevention and treatment.
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Affiliation(s)
- Rany M Salem
- Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California
| | - Jennifer N Todd
- Division of Endocrinology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts.,Programs in Metabolism and Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts.,Center for Genomic Medicine and
| | - Niina Sandholm
- Folkhälsan Research Center, Folkhälsan Institute of Genetics, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine and
| | - Joanne B Cole
- Division of Endocrinology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts.,Programs in Metabolism and Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts.,Center for Genomic Medicine and
| | - Wei-Min Chen
- Center for Public Health Genomics, School of Medicine, University of Virginia, Charlottesville, Virginia
| | - Darrell Andrews
- Diabetes Complications Research Centre, Conway Institute, School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Marcus G Pezzolesi
- Division of Nephrology and Hypertension, Diabetes and Metabolism Center, University of Utah, Salt Lake City, Utah
| | - Paul M McKeigue
- Usher Institute of Population Health Sciences and Informatics and
| | - Linda T Hiraki
- The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Chengxiang Qiu
- Departments of Medicine and Genetics, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Viji Nair
- Division of Nephrology, Department of Internal Medicine and
| | - Chen Di Liao
- The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jing Jing Cao
- The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Erkka Valo
- Folkhälsan Research Center, Folkhälsan Institute of Genetics, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine and
| | - Suna Onengut-Gumuscu
- Center for Public Health Genomics, School of Medicine, University of Virginia, Charlottesville, Virginia
| | | | - Stuart J McGurnaghan
- Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Jani K Haukka
- Folkhälsan Research Center, Folkhälsan Institute of Genetics, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine and
| | - Valma Harjutsalo
- Folkhälsan Research Center, Folkhälsan Institute of Genetics, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine and.,The Chronic Disease Prevention Unit, National Institute for Health and Welfare, Helsinki, Finland
| | - Eoin P Brennan
- Diabetes Complications Research Centre, Conway Institute, School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Natalie van Zuydam
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK.,Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Emma Ahlqvist
- Department of Genomics, Diabetes and Endocrinology, Lund University Diabetes Centre, Malmö, Sweden
| | - Ross Doyle
- Diabetes Complications Research Centre, Conway Institute, School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | | | - Maria Lajer
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Maria F Hughes
- Diabetes Complications Research Centre, Conway Institute, School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Jihwan Park
- Departments of Medicine and Genetics, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jan Skupien
- Joslin Diabetes Center, Boston, Massachusetts
| | | | | | - Rajasree Menon
- Division of Nephrology, Department of Internal Medicine and.,Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan
| | | | - Hyun M Kang
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan.,Center for Statistical Genetics, University of Michigan School of Public Health, Ann Arbor, Michigan
| | - Robert G Nelson
- Chronic Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, Arizona
| | - Ronald Klein
- University of Wisconsin-Madison, Madison, Wisconsin
| | | | | | - Xiaoyu Gao
- The George Washington University, Washington, DC
| | | | - Silvia Maestroni
- Complications of Diabetes Unit, Division of Immunology, Transplantation and Infectious Diseases, Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | | | | | - Rachel G Miller
- University of Pittsburgh Public Health, Pittsburgh, Pennsylvania
| | - Jingchuan Guo
- University of Pittsburgh Public Health, Pittsburgh, Pennsylvania
| | | | - David Tregouet
- INSERM UMR_S 1166, Sorbonne Université, UPMC Univ Paris 06, Paris, France.,ICAN Institute for Cardiometabolism and Nutrition, Paris, France
| | - Beata Gyorgy
- INSERM UMR_S 1166, Sorbonne Université, UPMC Univ Paris 06, Paris, France.,ICAN Institute for Cardiometabolism and Nutrition, Paris, France
| | | | - David M Maahs
- Department of Pediatrics-Endocrinology, Stanford University, Stanford, California
| | - Shelley B Bull
- The Lunenfeld-Tanenbaum Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Angelo J Canty
- Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada
| | - Colin N A Palmer
- Pat Macpherson Centre for Pharmacogenetics and Pharmacogenomics, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Lars Stechemesser
- First Department of Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Bernhard Paulweber
- First Department of Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Raimund Weitgasser
- First Department of Medicine, Paracelsus Medical University, Salzburg, Austria.,Department of Medicine, Diakonissen-Wehrle Hospital, Salzburg, Austria
| | | | - Vita Rovīte
- Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Valdis Pīrāgs
- University of Latvia, Riga, Latvia.,Pauls Stradins University Hospital, Riga, Latvia
| | | | - Lina Radzeviciene
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rasa Verkauskiene
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Nicolae Mircea Panduru
- Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,2nd Clinical Department, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Leif C Groop
- Department of Genomics, Diabetes and Endocrinology, Lund University Diabetes Centre, Malmö, Sweden.,Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
| | - Mark I McCarthy
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK.,Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Oxford, UK.,Oxford NIHR Biomedical Research Centre, Oxford University Hospitals Trust, Oxford, UK.,Genentech, 1 DNA Way, South San Francisco, California
| | - Harvest F Gu
- Department of Clinical Science, Intervention and Technology and.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Anna Möllsten
- Division of Pediatrics, Department of Clinical Sciences, Umeå University, Umeå, Sweden
| | - Henrik Falhammar
- Department of Molecular Medicine and Surgery, Rolf Luft Center for Diabetes Research and Endocrinology, Karolinska Institutet, Stockholm, Sweden.,Department of Endocrinology, Diabetes and Metabolism, Karolinska University Hospital, Stockholm, Sweden
| | - Kerstin Brismar
- Department of Molecular Medicine and Surgery, Rolf Luft Center for Diabetes Research and Endocrinology, Karolinska Institutet, Stockholm, Sweden.,Department of Endocrinology, Diabetes and Metabolism, Karolinska University Hospital, Stockholm, Sweden
| | - Finian Martin
- Diabetes Complications Research Centre, Conway Institute, School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Peter Rossing
- Steno Diabetes Center Copenhagen, Gentofte, Denmark.,University of Copenhagen, Copenhagen, Denmark
| | - Tina Costacou
- University of Pittsburgh Public Health, Pittsburgh, Pennsylvania
| | - Gianpaolo Zerbini
- Complications of Diabetes Unit, Division of Immunology, Transplantation and Infectious Diseases, Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Michel Marre
- Department of Diabetology, Endocrinology and Nutrition, Bichat Hospital, DHU FIRE, Assistance Publique-Hôpitaux de Paris, Paris, France.,UFR de Médecine, Paris Diderot University, Sorbonne Paris Cité, Paris, France.,INSERM UMRS 1138, Cordeliers Research Center, Paris, France.,Fondation Ophtalmologique Adolphe de Rothschild, Paris, France
| | - Samy Hadjadj
- Department of Endocrinology and Diabetology, Centre Hospitalier Universitaire de Poitiers, Poitiers, France.,INSERM CIC 1402, Poitiers, France.,L'institut du thorax, INSERM, CNRS, CHU Nantes, Nantes, France
| | - Amy J McKnight
- Centre for Public Health, Queens University of Belfast, Northern Ireland, UK
| | - Carol Forsblom
- Folkhälsan Research Center, Folkhälsan Institute of Genetics, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine and.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine and
| | - Gareth McKay
- Centre for Public Health, Queens University of Belfast, Northern Ireland, UK
| | - Catherine Godson
- Diabetes Complications Research Centre, Conway Institute, School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - A Peter Maxwell
- Centre for Public Health, Queens University of Belfast, Northern Ireland, UK
| | - Matthias Kretzler
- Division of Nephrology, Department of Internal Medicine and.,Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan
| | - Katalin Susztak
- Departments of Medicine and Genetics, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Helen M Colhoun
- Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | | | | | - Per-Henrik Groop
- Folkhälsan Research Center, Folkhälsan Institute of Genetics, Helsinki, Finland.,Abdominal Center Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Research Program for Clinical and Molecular Metabolism, Faculty of Medicine and.,Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria, Australia; and
| | - Stephen S Rich
- Center for Public Health Genomics, School of Medicine, University of Virginia, Charlottesville, Virginia
| | - Joel N Hirschhorn
- Division of Endocrinology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts.,Programs in Metabolism and Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts
| | - Jose C Florez
- Programs in Metabolism and Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts; .,Center for Genomic Medicine and.,Diabetes Unit, Massachusetts General Hospital, Boston, Massachusetts.,Department of Medicine, Harvard Medical School, Boston, Massachusetts
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You Q, He DM, Shu GF, Cao B, Xia YQ, Xing Y, Ni M, Chen JF, Shi SL, Gu HF, Liu Y, Wu J. Increased formation of neutrophil extracellular traps is associated with gut leakage in patients with type 1 but not type 2 diabetes. J Diabetes 2019; 11:665-673. [PMID: 30592146 DOI: 10.1111/1753-0407.12892] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 11/04/2018] [Accepted: 12/23/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the association of the formation of neutrophil extracellular traps (NETs) with gut leakage in type 1 (T1D) and type 2 diabetes (T2D). METHODS In all, 105 subjects (56 T1D, 49 T2D) were included in the study. Eight biomarkers of NET formation and gut leakage (ie, protein arginine deiminase type 4 [PAD4], neutrophil elastase [NE], proteinase 3 [PR3], complement 5a [C5a], α1 -antitrypsin [AAT], DNase I, zonulin, and lipopolysaccharide [LPS]) were measured in serum samples by ELISA. Neutrophils were isolated and stimulated by phorbol myristate acetate to form NETs in vitro. Neutrophil intracellular contents were then collected and used as antigens to detect anti-neutrophil cytoplasmic antibodies (ANCA) in the serum. RESULTS There was an increase in NET-associated proteins (PAD4, NE, PR3, C5a, AAT and DNase I) in new-onset T1D patients but not in those with T2D. Of PAD4, NE, and PR3, PAD4 was found to be the most sensitive biomarker for the diagnosis of T1D. Furthermore, circulating levels of zonulin and LPS were not only increased, but were also strongly correlated with NET formation and ANCA generation in T1D patients. CONCLUSIONS This study provides evidence that increased formation of NETs, particularly PAD4, is closely associated with gut leakage in T1D but not T2D, and suggests that microorganisms and the release of neutrophil cytoplasmic antigen during the formation of NETs may be involved in the pathogenesis of T1D.
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Affiliation(s)
- Qi You
- Minigene Pharmacy Laboratory, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Dong Mei He
- Minigene Pharmacy Laboratory, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Guo Fang Shu
- Clinical Laboratory, Zhongda Hospital Affiliated to Southeast University, Nanjing, China
| | - Bo Cao
- Clinical Laboratory, Children's Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Yong Quan Xia
- Clinical Laboratory, Gulou Hospital Affiliated to Medical College of Nanjing University, Nanjing, China
| | - Yun Xing
- Minigene Pharmacy Laboratory, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Min Ni
- Department of Endocrinology and Rheumatology, Nanjing Tongren Hospital Affiliated to Southeast University, Nanjing, China
| | - Ji Fang Chen
- Department of Endocrinology, Jurong People's Hospital, Zhenjiang, China
| | - Shu Li Shi
- Clinical Laboratory, Jurong People's Hospital, Zhenjiang, China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yu Liu
- Department of Endocrinology and Metabolism, Sir Run Run Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Jie Wu
- Minigene Pharmacy Laboratory, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
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33
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Yang M, Liang Z, Yang M, Jia Y, Yang G, He Y, Li X, Gu HF, Zheng H, Zhu Z, Li L. Role of bone morphogenetic protein-9 in the regulation of glucose and lipid metabolism. FASEB J 2019; 33:10077-10088. [PMID: 31237775 DOI: 10.1096/fj.201802544rr] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Bone morphogenetic protein (BMP)-9 has been reported to regulate energy balance in vivo. However, the mechanisms underlying BMP9-mediated regulation of energy balance remain incompletely understood. Here, we investigated the role of BMP9 in energy metabolism. In the current study, we found that hepatic BMP9 expression was down-regulated in insulin resistance (IR) mice and in patients who are diabetic. In mice fed a high-fat diet (HFD), the overexpression of hepatic BMP9 improved glucose tolerance and IR. The expression of gluconeogenic genes was down-regulated, whereas the level of insulin signaling molecule phosphorylation was increased in the livers of Adenovirus-BMP9-treated mice and glucosamine-treated hepatocytes. Furthermore, BMP9 overexpression ameliorated triglyceride accumulation and inhibited the expression of lipogenic genes in both human hepatocellular carcinoma HepG2 cells treated with a fatty acid mixture as well as the livers of HFD-fed mice. In hepatocytes isolated from sterol regulatory element-binding protein (SREBP)-1c knockout mice, the effects of BMP9 were ablated. Mechanistically, BMP9 inhibited SREBP-1c expression through the inhibition of liver X receptor response element 1 activity in the SREBP-1c promoter. Taken together, our results show that BMP9 is an important regulator of hepatic glucose and lipid metabolism.-Yang, M., Liang, Z., Yang, M., Jia, Y., Yang, G., He, Y., Li, X., Gu, H. F., Zheng, H., Zhu, Z., Li, L. Role of bone morphogenetic protein-9 in the regulation of glucose and lipid metabolism.
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Affiliation(s)
- Min Yang
- Key Laboratory of Diagnostic Medicine (Ministry of Education), Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Zerong Liang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Clinical Research Center for Geriatrics, Chongqing Medical University, Chongqing, China
| | - Mengliu Yang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Clinical Research Center for Geriatrics, Chongqing Medical University, Chongqing, China
| | - Yanjun Jia
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Clinical Research Center for Geriatrics, Chongqing Medical University, Chongqing, China
| | - Gangyi Yang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Clinical Research Center for Geriatrics, Chongqing Medical University, Chongqing, China
| | - Yirui He
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Clinical Research Center for Geriatrics, Chongqing Medical University, Chongqing, China
| | - Xinrun Li
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Clinical Research Center for Geriatrics, Chongqing Medical University, Chongqing, China
| | - Harvest F Gu
- Department of Clinical Science, Intervention and Technology, Karolinska University Hospital, Karolinska Institute, Huddinge, Stockholm, Sweden
| | - Hongting Zheng
- Department of Endocrinology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Daping Hospital, Chongqing Institute of Hypertension, Third Military Medical University, Chongqing, China
| | - Ling Li
- Key Laboratory of Diagnostic Medicine (Ministry of Education), Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
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Abstract
Chronic kidney disease is a worldwide health crisis, while diabetic kidney disease (DKD) has become the leading cause of end-stage renal disease (ESRD). DKD is a microvascular complication and occurs in 30–40% of diabetes patients. Epidemiological investigations and clinical observations on the familial clustering and heritability in DKD have highlighted an underlying genetic susceptibility. Furthermore, DKD is a progressive and long-term diabetic complication, in which epigenetic effects and environmental factors interact with an individual’s genetic background. In recent years, researchers have undertaken genetic and epigenetic studies of DKD in order to better understand its molecular mechanisms. In this review, clinical material, research approaches and experimental designs that have been used for genetic and epigenetic studies of DKD are described. Current information from genetic and epigenetic studies of DKD and ESRD in patients with diabetes, including the approaches of genome-wide association study (GWAS) or epigenome-wide association study (EWAS) and candidate gene association analyses, are summarized. Further investigation of molecular defects in DKD with new approaches such as next generation sequencing analysis and phenome-wide association study (PheWAS) is also discussed.
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Affiliation(s)
- Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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Zhang X, Gu HF, Frystyk J, Efendic S, Brismar K, Thorell A. Analyses of IGFBP2 DNA methylation and mRNA expression in visceral and subcutaneous adipose tissues of obese subjects. Growth Horm IGF Res 2019; 45:31-36. [PMID: 30921666 DOI: 10.1016/j.ghir.2019.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 12/13/2022]
Abstract
Insulin-like growth factor binding-protein 2 (IGFBP-2) is secreted by differentiating white adipocytes. Clinical studies demonstrate that circulating IGFBP-2 levels associated inversely with body mass index (BMI) and insulin resistance. To explore possible epigenetic changes of the IGFBP2 gene in obesity, we analyzed DNA methylation and mRNA expression in adipocytes from different depots. Healthy lean controls (BMI = 24.5 ± 0.3 kg/m2, n = 19) and obese subjects (BMI > 35 kg/m2, n = 24) were recruited. All subjects were Swedish Caucasian. Visceral abdominal adipose tissue (VAT) and subcutaneous adipose tissue (SAT) fragments were homogenized. Genomic DNA and total RNAs were extracted. Four CpG sites in the IGFBP2 gene promoter region were analyzed with bisulfite pyrosequencing. IGFBP2 gene expression at mRNA levels was determined with TaqMan real time RT-PCR. Serum samples were used for measurement of circulating IGFBP-2 and leptin levels. IGFBP2 DNA methylation levels in VAT were increased in obese subjects compared with controls (P < .05). By contrast, IGFBP2 mRNA expression levels in VAT were lower in obesity subjects than in controls (P < .05). In SAT, IGFBP2 DNA methylation and RNA expression levels were lower than in VAT, irrespective of obesity. Obese subjects demonstrated increased serum leptin levels (P < .001) and reduced serum IGFBP-2 levels compared to controls (P < .05). In conclusion, the current study demonstrates that IGFBP2 DNA methylation levels are increased in VAT from obese subjects. This suggests that IGFBP-2 is epigenetically regulated in abdominal obesity.
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Affiliation(s)
- Xiuli Zhang
- Department of Nephrology, The Second People's Hospital of Shenzhen, The First Affiliated Hospital of Shenzhen University, Guangdong 518000, China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Jan Frystyk
- Department of Endocrinology, Odense University Hospital & Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense DK-5000, Denmark; Department of Clinical Medicine Health, Aarhus University, Aarhus C DK-8000, Denmark.
| | - Suad Efendic
- Rolf Luft Center for Diabetes Research and Endocrinology, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm 17176, Sweden.
| | - Kerstin Brismar
- Rolf Luft Center for Diabetes Research and Endocrinology, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm 17176, Sweden; Department of Endocrinology, Diabetes and Metabolism, Karolinska University Hospital, Stockholm, Sweden.
| | - Anders Thorell
- Department of Clinical Science, Danderyds Hospital, Karolinska Institutet, Danderyd, Stockholm 18288, Sweden; Department of Surgery, Ersta Hospital, Karolinska Institutet, Stockholm 11691, Sweden.
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Zhang X, Guan T, Yang B, Chi Z, Wan Q, Gu HF. Protective effect of berberine on high glucose and hypoxia-induced apoptosis via the modulation of HIF-1α in renal tubular epithelial cells. Am J Transl Res 2019; 11:669-682. [PMID: 30899370 PMCID: PMC6413295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 12/23/2018] [Indexed: 06/09/2023]
Abstract
Berberine (BBR), derived from Huanglian (Coptis chinensis), is a traditional Chinese herbal medicine. In the current study, we investigated the effects of BBR in high glucose (HG) and hypoxia-induced apoptosis with normal rat renal tubular epithelial (NRK-52E) and human kidney proximal tubular cells (HK-2) and further explored the underlying molecular mechanism of hypoxia-inducible factor 1α (HIF-1α) in diabetic kidney disease (DKD). Apoptosis in NRK-52E and HK-2 cells induced by HG (30 mM)/hypoxia and anti-apoptosis with BBR pretreatment (30 μM) were analyzed by using the terminal uridine nick 3' end labeling method. Activities of apoptotic proteins and anti-apoptotic factor at mRNA and protein levels were determined with real-time RT-PCR and Western blot. HIF-1α action in the apoptosis with BBR pretreatment or siRNA interfere was investigated with flow-cytometry and Western blot. Up-regulation of apoptotic proteins (Bax cytochrome C, caspase 9 and caspase 3) and down-regulation of anti-apoptotic factor Bcl-xL were accompanied with HG/Hypoxia-induced apoptosis in NRK-52E and HK-2 cells but all reversals were found after BBR pretreatment. Activity of HIF-1α was induced under HG/Hypoxia conditions and up-regulated with BBR pretreatment. Furthermore, knockdown of HIF-1α via siRNA significantly removed the anti-apoptosis effects of BBR, while the BBR-mediated HIF-1α activity was suppressed by the pharmacological inhibition of Akt. The present study thereby provided evidence that BBR protected renal tubular epithelial cells from hypoxia/HG-induced apoptosis through activation of HIF-1α in the PI3K/Akt signal pathway and suggested that BBR could be a potential drug in DKD.
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Affiliation(s)
- Xiuli Zhang
- Department of Nephrology, The Second People’s Hospital, The First Affiliated Hospital of Shenzhen UniversityShenzhen 518000, Guangdong, P. R. China
- Department of Pathophysiology, China Medical UniversityShenyang 110001, Liaoning, P. R. China
| | - Tingwen Guan
- Department of Pathophysiology, China Medical UniversityShenyang 110001, Liaoning, P. R. China
| | - Boxuan Yang
- Department of Pathophysiology, China Medical UniversityShenyang 110001, Liaoning, P. R. China
| | - Zhihong Chi
- Department of Pathophysiology, China Medical UniversityShenyang 110001, Liaoning, P. R. China
| | - Qijun Wan
- Department of Nephrology, The Second People’s Hospital, The First Affiliated Hospital of Shenzhen UniversityShenzhen 518000, Guangdong, P. R. China
| | - Harvest F Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical UniversityNanjing 210009, P. R. China
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Lin Y, Liang Z, He L, Yang M, Liu D, Gu HF, Liu H, Zhu Z, Zheng H, Li L, Yang G. Gut ghrelin regulates hepatic glucose production and insulin signaling via a gut-brain-liver pathway. Cell Commun Signal 2019; 17:8. [PMID: 30683114 PMCID: PMC6347823 DOI: 10.1186/s12964-019-0321-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 01/21/2019] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Ghrelin modulates many physiological processes. However, the effects of intestinal ghrelin on hepatic glucose production (HGP) are still unclear. The current study was to explore the roles of intestinal ghrelin on glucose homeostasis and insulin signaling in the liver. METHODS The system of intraduodenal infusion and intracerebral microinfusion into the nucleus of the solitary tract (NTS) in the normal chow-diet rats and pancreatic-euglycemic clamp procedure (PEC) combined with [3-3H] glucose as a tracer were used to analyze the effect of intestinal ghrelin. Intraduodenal co-infusion of ghrelin, tetracaine and Activated Protein Kinase (AMPK) activator (AICAR), or pharmacologic and molecular inhibitor of N-methyl-D-aspartate receptors within the dorsal vagal complex, or hepatic vagotomy in rats were used to explore the possible mechanism of the effect of intestinal ghrelin on HGP. RESULTS Our results demonstrated that gut infusion of ghrelin inhibited duodenal AMP-dependent protein kinase (AMPK) signal pathways, increased HGP and expression of gluconeogenic enzymes, and decreased insulin signaling in the liver of the rat. Intraduodenal co-infusion of ghrelin receptor antagonist [D-Lys3]-GHRP-6 and AMPK agonist with ghrelin diminished gut ghrelin-induced increase in HGP and decrease in glucose infusion rate (GIR) and hepatic insulin signaling. The effects of gut ghrelin were also negated by co-infusion with tetracaine, or MK801, an N-methyl-D-aspartate (NMDA) receptor inhibitor, and adenovirus expressing the shRNA of NR1 subunit of NMDA receptors (Ad-shNR1) within the dorsal vagal complex, and hepatic vagotomy in rats. When ghrelin and lipids were co-infused into the duodenum, the roles of gut lipids in increasing the rate of glucose infusion (GIR) and lowering HGP were reversed. CONCLUSIONS The current study provided evidence that intestinal ghrelin has an effect on HGP and identified a neural glucoregulatory function of gut ghrelin signaling.
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Affiliation(s)
- Yao Lin
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China.,The Key Laboratory of Laboratory Medical Diagnostics in the Ministry of Education and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400010, China
| | - Zerong Liang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China
| | - Liping He
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China
| | - Mengliu Yang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China
| | - Dongfang Liu
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Hua Liu
- Department of Pediatrics, University of Mississippi Medical Center, 2500 North State Street, Jackson, Mississippi, MS 39216-4505, USA
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Chongqing Institute of Hypertension, Chongqing, 400010, China
| | - Hongting Zheng
- Department of Endocrinology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Ling Li
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China.
| | - Gangyi Yang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China.
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Yang P, Liang Y, Luo Y, Li Z, Wen Y, Shen J, Li R, Zheng H, Gu HF, Xia N. Liraglutide ameliorates nonalcoholic fatty liver disease in diabetic mice via the IRS2/PI3K/Akt signaling pathway. Diabetes Metab Syndr Obes 2019; 12:1013-1021. [PMID: 31308717 PMCID: PMC6614831 DOI: 10.2147/dmso.s206867] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 04/16/2019] [Indexed: 12/15/2022] Open
Abstract
Purpose: High prevalence of nonalcoholic fatty liver disease (NAFLD) among patients with type 2 diabetes has implicated the role of hepatic insulin resistance (IR) in the diseases. To better understand the underlying mechanism, we have evaluated the pathophysiological effects of Liraglutide on NAFLD via the insulin signaling pathway. Patients and methods: A 2×2 factorial experiment was designed. High-fat diet (HFD)-induced NAFLD mice with diabetes were treated with Liraglutide for 10 weeks, while the control mice were saline-treated. Hepatic expressions of InsR, IGF-1R, IRS2, PI3K and Akt at mRNA and protein levels were analyzed with RT-PCR and Western blotting. Hematoxylin and eosin staining, Oil Red O staining and electron microscopy were used to visualize triglyceride accumulation in liver. Results: Liraglutide significantly decreased body weight, fasting blood glucose levels and HOMA-IR scores in HFD mice. Compared with the control mice fed with chow diet, hepatic expressions of InsR, IRS2, PI3K and Akt at both mRNA and protein levels in HFD mice were significantly reduced, but upregulated after Liraglutide treatment. Furthermore, Liraglutide treatment was found to improve hepatic steatosis. Conclusion: The current study thereby provides evidence that Liraglutide ameliorates NAFLD and improves hepatic steatosis mainly by upregulation of the IRS2/PI3K/Akt signaling mediators.
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Affiliation(s)
- Pijian Yang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Guangxi Medical University, Nanning530021, People’s Republic of China
| | - Yuzhen Liang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guangxi Medical University, Nanning530021, People’s Republic of China
| | - Yunchen Luo
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guangxi Medical University, Nanning530021, People’s Republic of China
| | - Zhengming Li
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Guangxi Medical University, Nanning530021, People’s Republic of China
| | - Yumei Wen
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Guangxi Medical University, Nanning530021, People’s Republic of China
| | - Jing Shen
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Guangxi Medical University, Nanning530021, People’s Republic of China
| | - Ruwen Li
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Guangxi Medical University, Nanning530021, People’s Republic of China
| | - Hua Zheng
- Life Sciences Institute, Guangxi Medical University, Nanning530021, People’s Republic of China
| | - Harvest F Gu
- Center for Pathophysiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing210009People’s Republic of China
| | - Ning Xia
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Guangxi Medical University, Nanning530021, People’s Republic of China
- Correspondence: Ning XiaDepartment of Endocrinology and Metabolism, The First Affiliated Hospital of Guangxi Medical University, Nanning530021, People’s Republic of ChinaTel +86 771 280 2380Email
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Ekberg NR, Eliasson S, Li YW, Zheng X, Chatzidionysiou K, Falhammar H, Gu HF, Catrina SB. Protective Effect of the HIF-1A Pro582Ser Polymorphism on Severe Diabetic Retinopathy. J Diabetes Res 2019; 2019:2936962. [PMID: 31214621 PMCID: PMC6535890 DOI: 10.1155/2019/2936962] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 04/18/2019] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE Hypoxia is central in the pathogenesis of diabetic retinopathy (DR). Hypoxia-inducible factor-1 (HIF-1) is the key mediator in cellular oxygen homeostasis that facilitates the adaptation to hypoxia. HIF-1 is repressed by hyperglycemia contributing by this to the development of complications in diabetes. Recent work has shown that the HIF-1A Pro582Ser polymorphism is more resistant to hyperglycemia-mediated repression, thus protecting against the development of diabetic nephropathy. In this study, we have investigated the effect of the HIF-1A Pro582Ser polymorphism on the development of DR and further dissected the mechanisms by which the polymorphism confers a relative resistance to the repressive effect of hyperglycemia. RESEARCH DESIGN AND METHOD 703 patients with type 1 diabetes mellitus from one endocrine department were included in the study. The degree of retinopathy was correlated to the HIF-1A Pro582Ser polymorphism. The effect of glucose on a stable HIF-1A construct with a Pro582Ser mutation was evaluated in vitro. RESULTS We identified a protective effect of HIF-1A Pro582Ser against developing severe DR with a risk reduction of 95%, even when adjusting for known risk factors for DR such as diabetes duration, hyperglycemia, and hypertension. The Pro582Ser mutation does not cancel the destabilizing effect of glucose but is followed by an increased transactivation activity even in high glucose concentrations. CONCLUSION The HIF-1A genetic polymorphism has a protective effect on the development of severe DR. Moreover, the relative resistance of the HIF-1A Pro582Ser polymorphism to the repressive effect of hyperglycemia is due to the transactivation activity rather than the protein stability of HIF-1α.
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Affiliation(s)
- Neda Rajamand Ekberg
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Centrum for Diabetes, Academic Specialist Centrum, Stockholm, Sweden
| | - Sofie Eliasson
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Young Wen Li
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pharmacology, Guilin Medical University, Guilin, China
| | - Xiaowei Zheng
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Katerina Chatzidionysiou
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
| | - Henrik Falhammar
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Harvest F. Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Sergiu-Bogdan Catrina
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Centrum for Diabetes, Academic Specialist Centrum, Stockholm, Sweden
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Fang X, Zhang T, Yang M, Li L, Zhang C, Hu W, Fan X, Liu H, Zhu Z, Liu D, Zheng H, Gu HF, Liu R, Yang G. High Circulating Alarin Levels Are Associated with Presence of Metabolic Syndrome. Cell Physiol Biochem 2018; 51:2041-2051. [PMID: 30522093 DOI: 10.1159/000495823] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/28/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Alarin has been reported to be related with increased food intake and body weight. The relationship of circulating Alarin with insulin resistance or metabolic syndrome (MetS), however, is unknown. This study aimed to investigate the physiological role of Alarin and its association with MetS in humans. METHODS Newly diagnosed MetS patients (n=237) and age-matched healthy subjects (n=192) were recruited for this study. Oral glucose tolerance test, treadmill exercise, lipid infusions and euglycemic-hyperinsulinemic clamp (EHCs) were performed. Circulating Alarin and TNFα levels were measured by ELISA. RESULTS Circulating Alarin levels were significantly higher in MetS patients compared with healthy subjects (0.46 ± 0.22 vs. 0.41 ± 0.14 µg/L, P < 0.01). In all studied subjects, circulating Alarin levels were positively correlated with WC, blood pressure, FBG, triglyceride, HbA1c, HOMA-IR, AUCglucose, and TNFα (P < 0.05 or P < 0.01). Multivariate logistic regression analyses revealed that circulating Alarin levels were correlated with MetS and insulin resistance. There was no significant change of circulating Alarin levels in the subjects with treadmill exercise for 45 min. In healthy individuals, however, glucose challenge, acute hyperglycemia and lipid infusions resulted in increased circulating Alarin levels, while acute hyperinsulinaemia transiently decreased circulating Alarin levels. CONCLUSION The present study provides the evidence that circulating Alarin levels are associated with MetS and insulin resistance.
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Affiliation(s)
- Xia Fang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University and Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Tingran Zhang
- College of Physical Education, Southwest University, Key Laboratory of Physical Evaluation and Sports Performance Monitoring of the State Administration of Sports, Chongqing, China
| | - Mengliu Yang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University and Chongqing Clinical Research Center for Geriatrics, Chongqing, China.,School of Biomedical Sciences, the University of Queensland, Brisbane, Queensland, Australia
| | - Ling Li
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University and Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Cheng Zhang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University and Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Wenjing Hu
- Chongqing Prevention and Treatment Hospital for Occupational Diseases, Chongqing, China
| | - Xiaoyun Fan
- Chongqing Prevention and Treatment Hospital for Occupational Diseases, Chongqing, China
| | - Hua Liu
- Department of Pediatrics, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Chongqing Institute of Hypertension, Chongqing, China
| | - Dongfang Liu
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University and Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Hongting Zheng
- Department of Endocrinology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Harvest F Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Rui Liu
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University and Chongqing Clinical Research Center for Geriatrics, Chongqing, China
| | - Gangyi Yang
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University and Chongqing Clinical Research Center for Geriatrics, Chongqing,
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Zhang X, Guan T, Yang B, Chi Z, Wang ZY, Gu HF. A novel role for zinc transporter 8 in the facilitation of zinc accumulation and regulation of testosterone synthesis in Leydig cells of human and mouse testicles. Metabolism 2018; 88:40-50. [PMID: 30236453 DOI: 10.1016/j.metabol.2018.09.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/05/2018] [Accepted: 09/11/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Zinc is intimately involved in testosterone production. Zinc transporter 8 (ZnT8) is found to be localized in insulin secretory granules as a β-cell specific Zn transporter. The effect of ZnT8 and related zinc accumulation in steroidogenesis, however, is still unknown. The present study aimed to explore whether ZnT8 plays a role in the facilitation of zinc accumulation and regulation of testosterone synthesis in testicles. METHODS Leydig cells were isolated from the testicles of human, CD-1 suckling and ZnT8-KO mice. Zn accumulation in mitochondria was induced by hCG stimulation. Transfection of hZnT8-EGFP and RNA interfere of mZnT8 were done in MLTC-1 cells. ZnT8 expression and its co-localization with steroidogenic acute regulatory (StAR) protein were analyzed with RT-PCR, Western blot and dual-fluorescent staining protocols. Serum testosterone levels in mice were determined with chemiluminescent enzyme immunoassay. RESULTS ZnT8 was found to be presented in Leydig cells and up-regulated in suckling mouse Leydig cells and MLTC-1 cells after hCG administration, by which zinc accumulation occurred in mitochondria. ZnT8 gene silencing or knockout inhibited stimulated progesterone and testosterone production, reduced stimulated zinc accumulation and down-regulated phosphorylated steroidogenic acute regulatory (StAR) expression in Leydig cells. Furthermore, an inhibitor (H89) of PKA blocked hCG-stimulated progesterone caused by ZnT8 over-expression and zinc treatment. CONCLUSION The present study provided the first evidence that ZnT8 transports Zn into Leydig cell mitochondria with gonadotropin stimulation and suggests that ZnT8 may play a role in testosterone production via the PKA signaling pathway.
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Affiliation(s)
- Xiuli Zhang
- Department of Nephrology, The second People's Hospital, Shenzhen, The first Affiliated Hospital of Shenzhen University, Guangdong 518000, PR China; Department of Pathophysiology, China Medical University, Shenyang, Liaoning 110001, PR China
| | - Tingwen Guan
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning 110001, PR China
| | - Boxuan Yang
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning 110001, PR China
| | - Zhihong Chi
- Department of Pathophysiology, China Medical University, Shenyang, Liaoning 110001, PR China.
| | - Zhan-You Wang
- College of Life and Health Sciences, China Medical University, Shenyang, Liaoning 110001, PR China
| | - Harvest F Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China.
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Malipatil N, Lunt M, Narayanan RP, Siddals K, Cortés Moreno GY, Gibson MJ, Gu HF, Heald AH, Donn RP. Assessment of global long interspersed nucleotide element-1 (LINE-1) DNA methylation in a longitudinal cohort of type 2 diabetes mellitus (T2DM) individuals. Int J Clin Pract 2018; 73:e13270. [PMID: 30345607 DOI: 10.1111/ijcp.13270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 09/06/2018] [Indexed: 11/27/2022] Open
Abstract
INTRODUCTION Recent studies have indicated that methylation of the LINE-1 elements is associated with an increased risk of worsening carbohydrate metabolism. It has been shown that overall DNA methylation of LINE-1 elements could be considered as a risk factor for T2DM and its complications, independent of other established risk factors. METHODS A total of 794 T2DM individuals from Salford, UK were included in this study (60% men n = 470). All patients had clinical and metabolic variables measured in 2002 (baseline outcomes) and annually through to 2016. Global LINE-1 DNA methylation was measured at four CpG sites. The QIAGEN PyroMark Q96 MD pyrosequencer was used to quantify methylation. RESULTS The overall mean ± SD global LINE-1 methylation was 75.81 ± 3.25%. Cross-sectional linear regression analysis at baseline year 2002 showed that LINE-1 methylation was a significant predictor of diastolic BP (adjusted beta coefficient β = -0.25), estimated glomerular filtration rate (eGFR) (β = -0.48) and cholesterol HDL ratio (β = -0.04). A 10% increase in LINE-1 methylation was associated with a lower diastolic BP by 2.5 mm Hg, a lower eGFR by 4.8 ml/min/1.73 m2 and decreased cholesterol/HDL ratio by 0.4 mmol/L. Longitudinal analysis over the 14-year-follow-up periods showed that global LINE-1 methylation at baseline was associated with lower BMI in women [β = -0.25] and lower cholesterol: HDL ratio [β = -0.07]. A 10% increase in LINE-1 methylation was associated with reduction in BMI by 2.5 kg/m2 in women and reduction in cholesterol:HDL ratio by 0.7 mmol/L. CONCLUSION In a 14-year longitudinal cohort of T2DM individuals, relations between global LINE-1 DNA methylation status and specific metabolic markers were seen. Also, a higher degree of DNA methylation was predictive of less weight gain over time in women.
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Affiliation(s)
- Nagaraj Malipatil
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | - Mark Lunt
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | | | - Kirk Siddals
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | | | - Martin J Gibson
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
- NorthWest EHealth Ltd, Manchester, UK
| | - Harvest F Gu
- Center for Molecular Medicine, Karolinska University Hospital, Solna, Stockholm, Sweden
| | - Adrian H Heald
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford, UK
| | - Rachelle P Donn
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
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Hage C, Bjerre M, Frystyk J, Gu HF, Brismar K, Donal E, Daubert JC, Linde C, Lund LH. Comparison of Prognostic Usefulness of Serum Insulin-Like Growth Factor-Binding Protein 7 in Patients With Heart Failure and Preserved Versus Reduced Left Ventricular Ejection Fraction. Am J Cardiol 2018; 121:1558-1566. [PMID: 29622288 DOI: 10.1016/j.amjcard.2018.02.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/21/2018] [Accepted: 02/27/2018] [Indexed: 02/06/2023]
Abstract
We aimed to characterize of the role of insulin-like growth factor-binding protein 7 (IGFBP-7) in heart failure (HF) pathophysiology. IGFBP-7 has been associated with cardiac hypertrophy and diastolic dysfunction in HF. In 86 patients with HF with a preserved ejection fraction (HFpEF) (ejection fraction [EF] ≥45%) and 79 with HF with a reduced ejection fraction (HFrEF), we assessed concentrations of serum IGFBP-7, correlations between serum IGFBP-7 and clinical data, diastolic function, and associations with outcome. IGFBP-7 was lower in HFpEF than HFrEF (102 vs 152 µg/L, p <0.001) and correlated with New York Heart Association class (HFpEF: r = 0.25, p = 0.020; HFrEF: r = 0.26, p = 0.022), N-terminal pro-brain natriuretic peptide (NT-proBNP) (HFpEF: r = 0.53, p <0.001; HFrEF: r = 0.50, p <0.001), and estimated glomerular filtration rate (eGFR) (HFpEF: r = -0.47, p <0.001; HFrEF: r = -0.45, p <0.001). In HFpEF, IGFBP-7 correlated with E/e' (r = 0.31, p = 0.012) and E/A ratio (r = 0.31, p = 0.011). In HFrEF, but not HFpEF, IGFBP-7 correlated with age (r = 0.29, p = 0.009) and atrial fibrillation (r = 0.34, p = 0.002). IGFBP-7 predicted the outcome in HFpEF (hazard ratio 4.19 [1.01 to 17.35], p = 0.048]) but not in HFrEF (0.72 [0.24 to 2.14], p = 0.554). In conclusion in HFrEF, IGFBP-7 was elevated and associated with HF severity but not prognostic, suggesting a marker of risk. In HFpEF, IGFBP-7 was less elevated but associated with markers of diastolic dysfunction, HF severity, and prognosis. IGFBP-7 may contribute to the progression of HFpEF possibly through inflammation and oxidative stress.
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Affiliation(s)
- Camilla Hage
- Department of Medicine, Cardiology unit, Karolinska Institutet, Stockholm, Sweden.
| | - Mette Bjerre
- Department of Clinical Medicine, Medical Research Laboratory, Aarhus University, Aarhus, Denmark
| | - Jan Frystyk
- Department of Clinical Medicine, Medical Research Laboratory, Aarhus University, Aarhus, Denmark
| | - Harvest F Gu
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Kerstin Brismar
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Erwan Donal
- Département de Cardiologie & CICIT1414, Centre Hospitalier Universitaire de Rennes, Rennes, France
| | - Jean-Claude Daubert
- Département de Cardiologie & CICIT1414, Centre Hospitalier Universitaire de Rennes, Rennes, France
| | - Cecilia Linde
- Department of Medicine, Cardiology unit, Karolinska Institutet, Stockholm, Sweden
| | - Lars H Lund
- Department of Medicine, Cardiology unit, Karolinska Institutet, Stockholm, Sweden
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Wang Y, Wang C, Zhang X, Gu HF, Wu L. Common Drugs for Stabilization of Renal Function in the Progression of Diabetic Nephropathy and Their Relations with Hypertension Therapy. Curr Diabetes Rev 2018; 14:149-161. [PMID: 28201968 DOI: 10.2174/1573399813666170214112115] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Diabetic nephropathy is characterized by hypertension, progressive albuminuria, glomerulosclerosis and declines in glomerular filtration rate leading to end stage renal disease. Although the pathogenesis of diabetic nephropathy is not fully understood, current treatment of the patients with diabetic nephropathy is mainly based upon the control of hyperglycaemia and management of blood pressures. BACKGROUND Several drugs, which are originally developed for hypertension therapy, have been adopted for stabilization of renal function in diabetic nephropathy. In this review, we first discussed the relationships between diabetic nephropathy and hypertension particularly in the renin-angiotensinaldosterone system. We then summarized chemical structures, pharmacological characteristics and clinical studies of the common drugs used for treatment of diabetic nephropathy, while these drugs have effects against hypertension. CONCLUSION This review may provide the constructive information for further drug development in diabetic nephropathy.
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Affiliation(s)
- Yuxuan Wang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Chengcheng Wang
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, 210009, China
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Xiuli Zhang
- Department of Nephrology, Benxi Center Hospital, China Medical University, Benxi, 117000, China
- Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, Stockholm, 17176, Sweden
| | - Harvest F Gu
- Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, Stockholm, 17176, Sweden
- Department of Clinical Science, Intervention and Technologies, Karolinska Institutet, Karolinska University Hospital, Huddinge, Stockholm, 14157, Sweden
| | - Liang Wu
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, 210009, China
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45
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Wang H, Du L, Wu T, Yang G, Hu W, Wang H, Yang M, Liu D, Gu HF, Zhu Z, Zheng H, Li L. Circulating betatrophin is associated with insulin resistance in humans: cross-sectional and interventional studies in vivo and in vitro. Oncotarget 2017; 8:96604-96614. [PMID: 29228555 PMCID: PMC5722507 DOI: 10.18632/oncotarget.21852] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 10/05/2017] [Indexed: 12/11/2022] Open
Abstract
Betatrophin has a closely relationship with metabolism. However, its effect on metabolism disorder remains unclear. This study was comprised of a series of cross-sectional and interventional studies in vivo and vitro. PCOS women with IR and healthy women were recruited from the general population and outpatients. Plasma betatrophin levels were measured with ELISA. Insulin sensitivity was assessed with EHC. Gene expressions at mRNA and protein levels were determined with RT-PCR and Western blotting. Influences of insulin, metformin, rosiglitazone and over- or knockdown-expression of betatrophin were analyzed ex vivo. Our results indicated that IR women had higher betatrophin levels compared with the controls. Circulating betatrophin was positively correlated with BMI, WHR, Fat%, triglyceride, total cholesterol, LDL-C, AUCglucose and AUCinsulin, luteinizing Hormone, FAI and HOMA-IR but negatively with M-value. Metformin treatment in PCOS women with IR led to a reduction of betatrophin levels. Insulin stimulation in hepatocytes increased betatrophin expression. Metformin or rosiglitazone led to a reduction of betatrophin expression in insulin-stimulated hepatocytes. In hepatocytes/macrophages co-culture systems, betatrophin expression was significantly increased, whereas this increase was eliminated by rosiglitazone. In hepatocytes, overexpression and knockdown of betatrophin decreased or increased insulin-stimulated insulin receptor, protein kinase B and insulin receptor substrate-1 phosphorylation respectively. Serum from metformin-treated women with IR decreased betatrophin expression and reinforced insulin signals. Thus, the present study provides the in vivo and in vitro evidence, suggesting that there is a cell cross-talking between hepatocytes with macrophages for the regulating betatrophin and it may be a useful marker for IR and metabolic disorders.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Harvest F Gu
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, Huddinge, Stockholm, Sweden.,Center for Molecular Medicine, Karolinska Institute, Karolinska University Hospital, Solna, Stockholm, Sweden
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Daping Hospital, Third Military Medical University, Chongqing Institute of Hypertension, Chongqing, China
| | - Hongting Zheng
- Department of Endocrinology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Ling Li
- The Key Laboratory of Laboratory Medical Diagnostics in The Ministry of Education and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
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Yang S, Zhao H, Xu K, Qian Y, Wu M, Yang T, Chen Y, Zhao X, Chen J, Wen J, Hu Z, Gu HF, Shen H, Shen C. Evaluation of common variants in MG53 and the risk of type 2 diabetes and insulin resistance in Han Chinese. Springerplus 2017; 5:612. [PMID: 28443211 PMCID: PMC5395513 DOI: 10.1186/s40064-016-2218-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 04/22/2016] [Indexed: 11/10/2022]
Abstract
Abnormally increased skeletal-muscle-specific E3 ubiquitin ligase (MG53) is associated with the inhibition of insulin signalling and insulin resistance (IR) in animal models. Four community-based studies of Han Chinese populations were included in this study to test the association of variants of MG53 and type 2 diabetes (T2D). The results showed that rs7186832 and rs12929077 in MG53 were significantly associated with T2D and impaired fasting glucose (IFG) of females in the discovery-stage case-control study and cohort study respectively of rural population but not in the replication sample of urban population. In rural population, the fasting insulin (mU/L) of the subjects with AA, AG and GG genotypes in rs12929077 were 8.70 ± 8.05, 10.71 ± 11.16 and 13.41 ± 14.26, respectively, and increased linearly in T2D cases without medication treatment (P = 0.04). This variant was significantly associated with HOMA-IR (P = 0.020) and HOMA-IS (P = 0.023). In individuals with IFG, the insulin and HOMA-IR of AG carriers were significantly higher than those of AA carriers. In urban population, after glucose loading, there were significant differences in the 30-min glucose, the area under the curve (AUC) of 30-min glucose and the AUC of 120-min glucose according to the genotypes of rs7186832 and rs12929077 in males but not females. Our findings suggest that MG53 variants might confer risk susceptibility to the development of T2D of females and IR particularly in rural population.
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Affiliation(s)
- Song Yang
- Department of Cardiology, Affiliated Yixing People's Hospital of Jiangsu University, People's Hospital of Yixing City, Yixing, 214200 China
| | - Hailong Zhao
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China
| | - Kuangfeng Xu
- Department of Endocrinology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029 China
| | - Yun Qian
- Department of Chronic Non-communicable Disease Control, Wuxi Center for Disease Control and Prevention, Wuxi, 214023 China
| | - Ming Wu
- Institute of Chronic Disease Control, Center for Disease Control and Prevention of Jiangsu Province, Nanjing, 210009 China
| | - Tao Yang
- Department of Endocrinology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029 China
| | - Yanchun Chen
- Department of Cardiology, Affiliated Yixing People's Hospital of Jiangsu University, People's Hospital of Yixing City, Yixing, 214200 China
| | - Xianghai Zhao
- Department of Cardiology, Affiliated Yixing People's Hospital of Jiangsu University, People's Hospital of Yixing City, Yixing, 214200 China
| | - Jinfeng Chen
- Department of Clinical Epidemiology, Jiangsu Province Geriatrics Institute, Nanjing, 210024 China
| | - Jinbo Wen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China
| | - Zhibing Hu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China
| | - Harvest F Gu
- Department of Molecular Medicine and Surgery, Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska University Hospital, Karolinska Institutet, 17176 Stockholm, Sweden
| | - Hongbing Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China
| | - Chong Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Jiangning, Nanjing, 211166 China.,Department of Clinical Epidemiology, Jiangsu Province Geriatrics Institute, Nanjing, 210024 China
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47
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Gu HF. Genetic, Epigenetic and Biological Effects of Zinc Transporter (SLC30A8) in Type 1 and Type 2 Diabetes. Curr Diabetes Rev 2017; 13:132-140. [PMID: 26593983 DOI: 10.2174/1573399812666151123104540] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 11/09/2015] [Accepted: 11/20/2015] [Indexed: 11/22/2022]
Abstract
Zinc is essential for the proper storage, secretion and action of insulin, while solute carrier family 30 members (SLC30A8) transports Zinc from cytoplasm to insulin secretory granules in the pancreatic beta-cells. Accumulating genetic studies have demonstrated that the common single nucleotide polymorphisms in the SLC30A8 gene confer the risk susceptibility to type 2 diabetes. The rare loss-of-function variants in the gene, however, may have protective effects in the disease. SLC30A8 is highly expressed in the pancreas, particularly in the islets of Langerhans. Clinical investigations have implicated that SLC30A8 acts as a new antigenic target in the patients with type 1 diabetes. Biological experimental evidence has indicated that this gene expression at both mRNA and protein levels is down-regulated in diabetic pancreatic islets. Furthermore, epigenetic analysis showed that DNA methylation levels in the SLC30A8 gene are increased in type 2 diabetes patients, which complies with the decreased gene expression. In this review, biological relevance and bioinformatics of Zinc transport SLC30A8 are described. Genetic and epigenetic effects of the SLC30A8 gene in type 1 and type 2 diabetes are summarized. Further investigation of SLC30A8 interactions with Zinc and other functional partners is discussed.
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Affiliation(s)
- Harvest F Gu
- M99 Section of Renal Medicine, Department of Clinical Science, Intervention and Technologies, Karolinska Institutet, Karolinska University Hospital, Stockholm, 14157. Sweden
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48
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Abstract
Zinc is essential for the proper storage, secretion and action of insulin, while solute carrier family 30 members (SLC30A8) transports Zinc from cytoplasm to insulin secretory granules in the pancreatic beta-cells. Accumulating genetic studies have demonstrated that the common single nucleotide polymorphisms in the SLC30A8 gene confer the risk susceptibility to type 2 diabetes. The rare loss-of-function variants in the gene, however, may have protective effects in the disease. SLC30A8 is highly expressed in the pancreas, particularly in the islets of Langerhans. Clinical investigations have implicated that SLC30A8 acts as a new antigenic target in the patients with type 1 diabetes. Biological experimental evidence has indicated that this gene expression at both mRNA and protein levels is down-regulated in diabetic pancreatic islets. Furthermore, epigenetic analysis showed that DNA methylation levels in the SLC30A8 gene are increased in type 2 diabetes patients, which complies with the decreased gene expression. In this review, biological relevance and bioinformatics of Zinc transport SLC30A8 are described. Genetic and epigenetic effects of the SLC30A8 gene in type 1 and type 2 diabetes are summarized. Further investigation of SLC30A8 interactions with Zinc and other functional partners is discussed.
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Affiliation(s)
- Harvest F Gu
- M99 Section of Renal Medicine, Department of Clinical Science, Intervention and Technologies, Karolinska Institutet, Karolinska University Hospital, Stockholm, 14157. Sweden
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49
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Gu HF, Mou M, Liang ZG, Sun C, Ren XY, Xiao YB. The association between paraoxonase 1 gene polymorphisms and polycystic ovarian syndrome. Cell Mol Biol (Noisy-le-grand) 2016; 62:44-47. [PMID: 28145863 DOI: 10.14715/cmb/2016.62.14.7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 01/13/2017] [Indexed: 11/18/2022]
Affiliation(s)
- H F Gu
- Gynaecology of Affiliate Hospital Maternal and Child Health Care of Zunyi Medical University, Zunyi, Guizhou, China
| | - M Mou
- Gynaecology of Affiliate Hospital Maternal and Child Health Care of Zunyi Medical University, Zunyi, Guizhou, China
| | - Z G Liang
- Gynaecology of Affiliate Hospital Maternal and Child Health Care of Zunyi Medical University, Zunyi, Guizhou, China
| | - C Sun
- Gynaecology of Affiliate Hospital Maternal and Child Health Care of Zunyi Medical University, Zunyi, Guizhou, China
| | - X Y Ren
- Gynaecology of Affiliate Hospital Maternal and Child Health Care of Zunyi Medical University, Zunyi, Guizhou, China
| | - Y B Xiao
- Gynaecology of Affiliate Hospital Maternal and Child Health Care of Zunyi Medical University, Zunyi, Guizhou, China
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50
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Wu L, Shen C, Seed Ahmed M, Östenson CG, Gu HF. Adenylate cyclase 3: a new target for anti-obesity drug development. Obes Rev 2016; 17:907-14. [PMID: 27256589 DOI: 10.1111/obr.12430] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 04/06/2016] [Accepted: 04/19/2016] [Indexed: 12/14/2022]
Abstract
Obesity has become epidemic worldwide, and abdominal obesity has a negative impact on health. Current treatment options on obesity, however, still remain limited. It is then of importance to find a new target for anti-obesity drug development based upon recent molecular studies in obesity. Adenylate cyclase 3 (ADCY3) is the third member of adenylyl cyclase family and catalyses the synthesis of cAMP from ATP. Genetic studies with candidate gene and genome-wide association study approaches have demonstrated that ADCY3 genetic polymorphisms are associated with obesity in European and Chinese populations. Epigenetic studies have indicated that increased DNA methylation levels in the ADCY3 gene are involved in the pathogenesis of obesity. Furthermore, biological analyses with animal models have implicated that ADCY3 dysfunction resulted in increased body weight and fat mass, while reduction of body weight is partially explained by ADCY3 activation. In this review, we describe genomic and biological features of ADCY3, summarize genetic and epigenetic association studies of the ADCY3 gene with obesity and discuss dysfunction and activation of ADCY3. Based upon all data, we suggest that ADCY3 is a new target for anti-obesity drug development. Further investigation on the effectiveness of ADCY3 activator and its delivery approach to treat abdominal obesity has been taken into our consideration.
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Affiliation(s)
- L Wu
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, 210009, China
| | - C Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - M Seed Ahmed
- Unit for Medical Education, Centre for Learning and Knowledge, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Stockholm, 17177, Sweden
| | - C-G Östenson
- Rolf Luft Center for Diabetes Research and Endocrinology, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Solna, Stockholm, 17176, Sweden
| | - H F Gu
- Department of Clinical Science, Intervention and Technologies, Karolinska Institutet, Karolinska University Hospital, Huddinge, Stockholm, 14157, Sweden.,Center of Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, Stockholm, 17176, Sweden
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