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Feng Y, Liu J, Gong L, Han Z, Zhang Y, Li R, Liao H. Inonotus obliquus (Chaga) against HFD/STZ-induced glucolipid metabolism disorders and abnormal renal functions by regulating NOS-cGMP-PDE5 signaling pathway. Chin J Nat Med 2024; 22:619-631. [PMID: 39059831 DOI: 10.1016/s1875-5364(24)60571-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Indexed: 07/28/2024]
Abstract
Our prior investigations have established that Inonotus obliquus (Chaga) possesses hypoglycemic effects. Persistent hyperglycemia is known to precipitate renal function abnormalities. The functionality of the kidneys is intricately linked to the levels of cyclic guanosine-3',5'-monophosphate (cGMP), which are influenced by the activities of nitric oxide synthase (NOS) and phosphodiesterase (PDE). Enhanced cGMP levels can be achieved either through the upregulation of NOS activity or the downregulation of PDE activity. The objective of the current study is to elucidate the effects of Chaga on disorders of glucolipid metabolism and renal abnormalities in rats with type 2 diabetes mellitus (T2DM), while concurrently examining the NOS-cGMP-PDE5 signaling pathway. A model of T2DM was developed in rats using a high-fat diet (HFD) combined with streptozotocin (STZ) administration, followed by treatment with Chaga extracts at doses of 50 and 100 mg·kg-1 for eight weeks. The findings revealed that Chaga not only mitigated metabolic dysfunctions, evidenced by improvements in fasting blood glucose, total cholesterol, triglycerides, and insulin resistance, but also ameliorated renal function markers, including serum creatinine, urine creatinine (UCr), blood urea nitrogen, 24-h urinary protein, and estimated creatinine clearance. Additionally, enhancements in glomerular volume, GBM thickness, podocyte foot process width (FPW), and the mRNA and protein expressions of podocyte markers, such as nephrin and wilms tumor-1, were observed. Chaga was found to elevate cGMP levels in both serum and kidney tissues by increasing mRNA and protein expressions of renal endothelial NOS and neural NOS, while simultaneously reducing the expressions of renal inducible NOS and PDE5. In summary, Chaga counteracts HFD/STZ-induced glucolipid metabolism and renal function disturbances by modulating the NOS-cGMP-PDE5 signaling pathway. This research supports the potential application of Chaga in the clinical prevention and treatment of T2DM and diabetic nephropathy (DN), with cGMP serving as a potential therapeutic target.
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Affiliation(s)
- Yating Feng
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
| | - Jing Liu
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
| | - Le Gong
- School of Pharmacy, Shanxi Medical University, Taiyuan 030001, China
| | - Zhaodi Han
- Drug Clinical Trial Institution, The Fifth Hospital of Shanxi Medical University (Shanxi Provincial People's Hospital), Taiyuan 030012, China
| | - Yan Zhang
- Department of Nephrology, The Fifth Hospital of Shanxi Medical University (Shanxi Provincial People's Hospital), Taiyuan 030012, China
| | - Rongshan Li
- Department of Nephrology, The Fifth Hospital of Shanxi Medical University (Shanxi Provincial People's Hospital), Taiyuan 030012, China
| | - Hui Liao
- Drug Clinical Trial Institution, The Fifth Hospital of Shanxi Medical University (Shanxi Provincial People's Hospital), Taiyuan 030012, China.
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Zhu S, Xiong Y, Yu B, Wang H, Zhang F, Wu C, Qin F, Yuan J. Vitamin D3 improved erectile function recovery by regulating autophagy and apoptosis in a rat model of cavernous nerve injury. Int J Impot Res 2024; 36:430-436. [PMID: 36813836 DOI: 10.1038/s41443-023-00679-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/24/2023]
Abstract
Vitamin D3 is an important element in improving erectile function. However, the mechanisms of vitamin D3 remain unknown. Thus, we explored the effect of vitamin D3 on erectile function recovery after nerve injury in a rat model and investigated its possible molecular mechanisms. Eighteen male Sprague-Dawley rats were used in this study. The rats were randomly divided into three groups: the control, bilateral cavernous nerve crush (BCNC), and BCNC + vitamin D3 groups. BCNC model was established in rats by surgery. The intracavernosal pressure and the ratio of intracavernosal pressure to mean arterial pressure were utilized to evaluate erectile function. Masson trichrome staining, immunohistochemistry, terminal deoxynucleotidyl transferase-mediated dUTP nick end labelling and western blot analysis were performed on penile tissues to elucidate the molecular mechanism. The results indicated that vitamin D3 alleviated hypoxia and suppressed the fibrosis signalling pathway by upregulating the expression of eNOS (p = 0.001), nNOS (p = 0.018) and α-SMA (p = 0.025) and downregulating the expression of HIF-1α (p = 0.048) and TGF-β1 (p = 0.034) in BCNC rats. Vitamin D3 promoted erectile function restoration by enhancing the autophagy process through decreases in the p-mTOR/mTOR ratio (p = 0.02) and p62 (p = 0.001) expression and increases in Beclin1 expression (p = 0.001) and the LC3B/LC3A ratio (p = 0.041). Vitamin D3 application improved erectile function rehabilitation by suppressing the apoptotic process through decreases in the expression of Bax (p = 0.002) and caspase-3 (p = 0.046) and an increase in the expression of Bcl2 (p = 0.004). Therefore, We concluded that vitamin D3 improved the erectile function recovery in BCNC rats by alleviating hypoxia and fibrosis, enhancing autophagy and inhibiting apoptosis in the corpus cavernosum.
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Affiliation(s)
- Shiyu Zhu
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Xiong
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Botao Yu
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
- Department of Urology, Ningbo Medical Center, Lihuili Hospital, Ningbo, China
| | - Hao Wang
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Fuxun Zhang
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Changjing Wu
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Feng Qin
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Jiuhong Yuan
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China.
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China.
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Zhou YF, Liu HW, Yang X, Li CX, Chen JS, Chen ZP. Probucol attenuates high glucose-induced Müller cell damage through enhancing the Nrf2/p62 signaling pathway. Int Ophthalmol 2023; 43:4595-4604. [PMID: 37688651 PMCID: PMC10724314 DOI: 10.1007/s10792-023-02859-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 08/20/2023] [Indexed: 09/11/2023]
Abstract
PURPOSE This study investigated the protective effect of probucol on Müller cells exposed to high glucose conditions and examined potential mechanisms of action. METHODS Primary human retinal Müller cells were incubated with high glucose (HG, 35 mM) in the present or absence of different concentrations of probucol for 24 h. Cell viability was determined using the CCK-8 method. Mitochondrial membrane potential (MMP) was measured using JC-1 staining and cell cycle by flow cytometry. The expression of nuclear factor E2-related factor 2 (Nrf2), glutamate-cysteine ligase catalytic subunit, and p62 was quantified using quantitative polymerase chain reaction and western blot. RESULTS We found that HG inhibited cell proliferation, arrested cell cycle, and increased MMP in human Müller cells. Probucol activated the Nrf2/p62 pathway and upregulated the anti-apoptotic protein, Bcl2, and attenuated HG-mediated damage in Müller cells. CONCLUSIONS Our results suggest that probucol may protect Müller cells from HG-induced damage through enhancing the Nrf2/p62 signaling pathway.
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Affiliation(s)
- Yu-Fan Zhou
- Department of Ophthalmology, Aier Eye Hospital of Changsha, Changsha, 410015, Hunan Province, China
- Aier School of Ophthalmology, Central South University, Changsha, 410015, Hunan Province, China
| | - Heng-Wei Liu
- Department of Ophthalmology, Aier Eye Hospital of Changsha, Changsha, 410015, Hunan Province, China
- Aier School of Ophthalmology, Central South University, Changsha, 410015, Hunan Province, China
| | - Xu Yang
- Aier Eye Research Laboratory, Aier Eye Institute, Changsha, 410015, Hunan Province, China
| | - Chen-Xiang Li
- Department of Ophthalmology, Aier Eye Hospital of Changsha, Changsha, 410015, Hunan Province, China
- Aier School of Ophthalmology, Central South University, Changsha, 410015, Hunan Province, China
| | - Jian-Su Chen
- Aier School of Ophthalmology, Central South University, Changsha, 410015, Hunan Province, China
- Medical College, Jinan University, Guangzhou, 510632, Guangdong Province, China
| | - Zhong-Ping Chen
- Department of Ophthalmology, Aier Eye Hospital of Changsha, Changsha, 410015, Hunan Province, China.
- Aier School of Ophthalmology, Central South University, Changsha, 410015, Hunan Province, China.
- The First Clinical Medical College of Jinan University, Guangzhou, 510000, China.
- School of Stomatology and Ophthalmology, Xianning Medical College, Hubei University of Science and Technology, Xianning, 437100, China.
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Wang J, Feng Y, Zhang Y, Liu J, Gong L, Zhang X, Liao H. TNF-α and IL-1β Promote Renal Podocyte Injury in T2DM Rats by Decreasing Glomerular VEGF/eNOS Expression Levels and Altering Hemodynamic Parameters. J Inflamm Res 2022; 15:6657-6673. [PMID: 36532651 PMCID: PMC9748123 DOI: 10.2147/jir.s391473] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/30/2022] [Indexed: 07/01/2024] Open
Abstract
PURPOSE Diabetic nephropathy (DN) is a serious microvascular complication in those with type 2 diabetes mellitus (T2DM). Evidence confirms that serum tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) in the T2DM stage are proposed as prognostic markers for DN development, but it is unclear how they affect renal podocyte-associated nephrin and WT-1 expression. In the presence of podocyte injury, glomerular vascular endothelial growth factor (VEGF), endothelial nitric oxide synthase (eNOS) and hemodynamic parameters are dysregulated. The current research aimed to clarify the relationship of TNF-α and IL-1β with podocyte injury by altering VEGF/eNOS expression and hemodynamic parameters. METHODS A high-fat diet/streptozotocin-induced DN rat model was established. Serum TNF-α and IL-1β levels were tracked in the pre-T2DM, T2DM and DN stages. In the DN stage, the mRNA and protein expression levels of renal TNF-α, IL-1β, VEGF, eNOS, nephrin and WT-1 were studied. Renal hemodynamic parameters, including peak systolic velocity, end-diastolic flow velocity and mean velocity were measured with a color Doppler ultrasound technique. RESULTS Compared to those in the normal control (CTL) group, serum TNF-α and IL-1β levels increased significantly in the pre-T2DM stage (obesity, insulin resistance and hyperlipidemia), T2DM stage (hyperglycemia) and DN stage (abnormal renal functions) (all: P < 0.05) in the DN group. Serum TNF-α and IL-1β levels in the T2DM stage were significantly higher than those in the pre-T2DM stage (two: P < 0.05). Compared to the CTL group, renal nephrin, WT-1, TNF-α, IL-1β, eNOS and VEGF expression and hemodynamic parameters in the DN stage all showed significant differences separately (all: P < 0.05). CONCLUSION Increased serum and renal TNF-α and IL-1β levels played important roles in reducing renal nephrin and WT-1 expression levels, which may be related to the fact that the former affected renal VEGF/eNOS expression and blood flow parameters in the DN rats.
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Affiliation(s)
- Jufang Wang
- Department of Ultrasonic Diagnosis, Fifth Hospital of Shanxi Medical University (Shanxi Provincial People’s Hospital), Taiyuan, People’s Republic of China
| | - Yating Feng
- School of Pharmacy, Shanxi Medical University, Taiyuan, People’s Republic of China
| | - Yan Zhang
- Department of Nephrology, Fifth Hospital of Shanxi Medical University (Shanxi Provincial People’s Hospital), Taiyuan, People’s Republic of China
| | - Jing Liu
- School of Pharmacy, Shanxi Medical University, Taiyuan, People’s Republic of China
| | - Le Gong
- School of Pharmacy, Shanxi Medical University, Taiyuan, People’s Republic of China
| | - Xiaohong Zhang
- Department of Ultrasonic Diagnosis, Fifth Hospital of Shanxi Medical University (Shanxi Provincial People’s Hospital), Taiyuan, People’s Republic of China
| | - Hui Liao
- Department of Pharmacy, Fifth Hospital of Shanxi Medical University (Shanxi Provincial People’s Hospital), Taiyuan, People’s Republic of China
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Yang CC, Liao PH, Cheng YH, Chien CY, Cheng KH, Chien CT. Diabetes associated with hypertension exacerbated oxidative stress-mediated inflammation, apoptosis and autophagy leading to erectile dysfunction in rats. J Chin Med Assoc 2022; 85:346-357. [PMID: 35019864 DOI: 10.1097/jcma.0000000000000691] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND Diabetes or hypertension contributes to erectile dysfunction (ED). We hypothesized that excess reactive oxygen species (ROS) production evoked by diabetes combined with hypertension may further suppress endothelial nitric oxide (NO) expression/activity and promote oxidative stress in the ED penis. METHODS Twenty-four adult male Wistar Kyoto rats (WKY) and spontaneously hypertensive rats (SHR) were divided into four groups: normal WKY, diabetic WKY, normal SHR and diabetic SHR. Intraperitoneal streptozotocin (65 mg/kg) was applied to induce type I diabetes. After 4-week diabetes and/or hypertension induction, we determined the intra-cavernous pressure (ICP) using electrical stimulation of cavernous nerves, intra-cavernosum NO amount using an electrochemical NO probe, and blood ROS using an ultrasensitive chemiluminescence-amplified analyzer. Western blot analysis and immunohistochemistry were used to explore the pathophysiologic mechanisms of inflammation, apoptosis and autophagy in the penis. A novel NO donor, CysaCysd Lu-5 (CCL5, (RCH2CH2S)(R'R"CHCH2S)Fe(NO)2, 1-4 µg), was intravenously administered to these ED rats for evaluating their ICP responses. RESULTS In the baseline status, the lucigenin- and luminol-amplified blood ROS were significantly enhanced in the diabetic SHR rats vs normal WKY rats. Significantly decreased ICP, eNOS expression and NO amount were found in the normal SHR, diabetic WKY, and diabetic SHR vs normal WKY rats. Intravenous NO donor L-Arginine markedly increased ICP and NO amount, whereas eNOS inhibitor, Nω-Nitro-L-Arginine methyl ester hydrochloride depressed ICP in all four groups. Diabetes and/or hypertension alone increased fibrosis, proinflammatory NF-kB/ICAM-1 expression, mast cell numbers, CD68 expression and infiltration, Caspase 3-mediated apoptosis, Beclin-1/LC3-II-mediated autophagy and mild Nrf-2/HO-1 expression and depressed eNOS expression in the ED penis. The novel NO donor, CCL5, was more efficient than L-arginine to improve diabetes and/or hypertension-induced ED by the significant increase of ICP. CONCLUSION Diabetes combined with hypertension synergistically exacerbated ED through enhanced oxidative stress, inflammation, apoptosis and autophagy and depressed eNOS activity and NO production.
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Affiliation(s)
- Chih-Ching Yang
- Department of Life Science, School of Life Science, College of Science, National Taiwan Normal University, Taipei, Taiwan, ROC
- Office of Public Relation of Ministry of Health and Welfare, Taipei, Taiwan, ROC
- Center for General Education, Mackay College of Medicine, Nursing and Management, New Taipei City, Taiwan, ROC
| | - Pin-Hao Liao
- Department of Life Science, School of Life Science, College of Science, National Taiwan Normal University, Taipei, Taiwan, ROC
| | - Yu-Hsiuan Cheng
- Department of Life Science, School of Life Science, College of Science, National Taiwan Normal University, Taipei, Taiwan, ROC
| | - Chen-Yen Chien
- Department of Surgery, Mackay Memorial Hospital, Taipei, Taiwan, ROC
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan, ROC
- Mackay Junior College of Medicine, Nursing and Management, New Taipei City, Taiwan, ROC
| | - Kuo-Hsin Cheng
- Division of General Surgery, Department of Surgery, Far-Eastern Memorial Hospital, New Taipei City, Taiwan, ROC
- Department of Electrical Engineering, Yuan Ze University, Taoyuan, Taiwan, ROC
| | - Chiang-Ting Chien
- Department of Life Science, School of Life Science, College of Science, National Taiwan Normal University, Taipei, Taiwan, ROC
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Ding H, Liu C, Zhang S, Li B, Xu Q, Shi B, Li S, Dong S, Ma X, Zhang Y, Zhong M, Zhang G. Sleeve gastrectomy attenuated diabetes-related cognitive decline in diabetic rats. Front Endocrinol (Lausanne) 2022; 13:1015819. [PMID: 36407319 PMCID: PMC9669300 DOI: 10.3389/fendo.2022.1015819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To investigate the effects of sleeve gastrectomy (SG) on diabetes-related cognitive decline (DCD) in rats with diabetic mellitus (DM). METHODS AND METHODS Forty Wistar rats were randomly divided into control (CON) group (n=10), diabetes mellitus (DM) group (n=10), sham operation (SHAM) group (n=10) and SG group (n=10). DM model was established by high-fat diet (HFD) combined with intraperitoneal injection of streptozocin (STZ). Behavioral evaluation was given using Morris water maze test and Y-maze. In addition, PET-CT, TUNEL assay, histological analysis, transmission electron microscopy (TEM), immunohistochemistry (IHC) and Western blot analysis were used to evaluate the alleviating effects and potential mechanisms of SG on DCD in DM rats. RESULTS Compared with the sham group, SG induced significant improvement in the metabolic indices such as blood glucose and body weight. Besides, it could attenuate the insulin resistance compared with SHAM group. In addition, SG could improve the cognitive function of DM rats, which were featured by significant decrease in the escape latency (P<0.05), and significant increase in the time in target quadrant and platform crossings (P<0.05) compared with the SHAM group. SG induced significant elevation in the spontaneous alternation compared with SHAM group (P<0.05). Moreover, SG could improve the arrangement and biosynthesis of hippocampus neuron. Moreover, SG triggered the inhibition of apoptosis of hippocampus neurons, and Western blot analysis showed SG induced significant increase in the ratios of Bcl-2/Bax and Caspase3/cleaved Caspase 3. TEM demonstrated SG could significantly improve the microstructure of hippocampus neurons compared with the SHAM group. Western blot and IHC confirmed the significant decrease in the phosphorylation of tau at Ser404 and Ser396 sites in the SG group. Furthermore, SG activated the PI3K signaling pathway by elevating the phosphorylation of PI3K and Akt and GSK3β compared with the SHAM group. CONCLUSION SG attenuated the DCD in DM rats, which may be related to the activation of PI3K signaling pathway.
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Affiliation(s)
- Huanxin Ding
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chuxuan Liu
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shuo Zhang
- Medical Research Center, Shandong Provincial Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Bingjun Li
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Qian Xu
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Bowen Shi
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Songhan Li
- Department of Breast Disease, Peking University People’s Hospital, Beijing, China
| | - Shuohui Dong
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaomin Ma
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Yun Zhang
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Mingwei Zhong
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Guangyong Zhang
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- *Correspondence: Guangyong Zhang,
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Xu Q, Ding H, Li S, Dong S, Li L, Shi B, Zhong M, Zhang G. Sleeve Gastrectomy Ameliorates Diabetes-Induced Cardiac Hypertrophy Correlates With the MAPK Signaling Pathway. Front Physiol 2021; 12:785799. [PMID: 34858216 PMCID: PMC8631968 DOI: 10.3389/fphys.2021.785799] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 10/25/2021] [Indexed: 12/16/2022] Open
Abstract
Background: Cardiac hypertrophy as a main pathological manifestation of diabetic cardiomyopathy (DCM), is a significant complication of diabetes. Bariatric surgery has been proven to relieve DCM; however, whether it can alleviate diabetes-induced cardiac hypertrophy is undefined. Methods: Diabetic and obese rats were performed sleeve gastrectomy (SG) after having diabetes for 16weeks. The rats were euthanized 8weeks after SG. Metabolic parameters, heart function parameters, myocardial glucose uptake, morphometric and histological changes, and the expression level of mitogen-activated protein kinases (MAPKs) were determined and compared among the control group (CON group), diabetes mellitus group (DM group), sham operation group (SHAM group), and SG group. Results: Compared with the SHAM group, the blood glucose, body weight, insulin resistance, and other metabolic parameters were significantly improved in the SG group. There was also a marked improvement in myocardial morphometric and histological parameters after SG. Furthermore, the myocardial glucose uptake and heart function were reversed after SG. Additionally, the phosphorylation of MAPKs was inhibited after SG, including p38 MAPKs, c-Jun N-terminal kinases (JNKs), and extracellular signal-regulated kinases 1/2 (ERK1/2). The expression of DUSP6, which dephosphorylates ERK1/2, was upregulated after SG. These findings suggest that SG ameliorated diabetes-induced cardiac hypertrophy correlates with the MAPK signaling pathway. Conclusion: These results showed that diabetes-induced cardiac hypertrophy was ameliorated after SG was closely related to the inhibition of the MAPK signaling pathway and upregulation of DUSP6. Therefore, this study provides a novel strategy for treating diabetes-induced cardiac hypertrophy.
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Affiliation(s)
- Qian Xu
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Huanxin Ding
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Songhan Li
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Shuohui Dong
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Linchuan Li
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Bowen Shi
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Mingwei Zhong
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Guangyong Zhang
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
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Wang L, Gao Z, Liu C, Li J. Potential biomarkers of abnormal osseointegration of implants in type II diabetes mellitus. BMC Oral Health 2021; 21:583. [PMID: 34794414 PMCID: PMC8603511 DOI: 10.1186/s12903-021-01939-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 10/30/2021] [Indexed: 01/13/2023] Open
Abstract
Background Type II diabetes mellitus (T2DM) is an important risk factor for osseointegration of implants. The aim of this study was to explore key genes of T2DM affecting bone metabolism through bioinformatic analysis of published RNA sequencing data, identify potential biomarkers, and provide a reference for finding the molecular mechanism of abnormal osseointegration caused by T2DM. Methods We identified differentially expressed mRNAs and miRNAs from the Gene Expression Omnibus database using the R package ‘limma’ and analysed the predicted target genes using Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis and Gene Ontology analysis. At the same time, miRNA–mRNA interactions were explored using miRWalk 2.0. Results We constructed an miRNA-gene regulatory network and a protein–protein interaction network. The enrichment pathways of differentially expressed mRNAs included extracellular matrix receptor interactions, protein digestion and absorption, the PI3K-Akt signalling pathway, cytokine–cytokine receptor interactions, chemokine signalling pathways, and haematopoietic cell lineage functions. We analysed the expression of these differentially expressed mRNAs and miRNAs in T2DM rats and normal rats with bone implants and identified Smpd3, Itga10, and rno-mir-207 as possible key players in osseointegration in T2DM. Conclusion Smpd3, Itga10, and rno-mir-207 are possible biomarkers of osseointegration in T2DM. This study sheds light on the possible molecular mechanism of abnormal osseointegration caused by bone metabolism disorder in T2DM. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-01939-9.
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Affiliation(s)
- Lingxiao Wang
- Department of Dental Implant Center, Beijing Stomatological Hospital, Capital Medical University, Capital Medical University School of Stomatology, No. 4 Tian Tan Xi Li, Beijing, 100050, People's Republic of China
| | - Zhenhua Gao
- Outpatient Department of Oral and Maxillofacial Surgery, Beijing Stomatological Hospital, Capital Medical University, Capital Medical University School of Stomatology, No. 4 Tian Tan Xi Li, Beijing, 100050, People's Republic of China
| | - Changying Liu
- Department of Dental Implant Center, Beijing Stomatological Hospital, Capital Medical University, Capital Medical University School of Stomatology, No. 4 Tian Tan Xi Li, Beijing, 100050, People's Republic of China
| | - Jun Li
- Department of Dental Implant Center, Beijing Stomatological Hospital, Capital Medical University, Capital Medical University School of Stomatology, No. 4 Tian Tan Xi Li, Beijing, 100050, People's Republic of China.
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Wu CJ, Fu FD, Qin F, Ma M, Li T, Wei SZ, Yu BT, Yang XZ, Yuan JH. Vacuum therapy ameliorates erectile dysfunction in bilateral cavernous nerve crush rats by inhibiting apoptosis and activating autophagy. Asian J Androl 2021; 23:273-280. [PMID: 33473012 PMCID: PMC8152413 DOI: 10.4103/aja.aja_79_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 10/26/2020] [Indexed: 02/05/2023] Open
Abstract
Postprostatectomy erectile dysfunction (pPED) remains a current problem despite improvements in surgical techniques. Vacuum therapy is clinically confirmed as a type of pPED rehabilitation. However, its underlying mechanisms are incompletely understood. Recently, autophagy and apoptosis were extensively studied in erectile dysfunction resulting from diabetes, senescence, and androgen deprivation but not in the context of pPED and vacuum therapy. Therefore, this study was designed to investigate the roles of autophagy and apoptosis in pPED and vacuum therapy. Twenty-four adult male Sprague-Dawley rats were randomly divided into three groups: the control group, bilateral cavernous nerve crush (BCNC) group, and BCNC + vacuum group. After 4 weeks of treatment, intracavernosal pressure was used to evaluate erectile function. Real-time quantitative polymerase chain reaction, western blot, and immunohistochemistry were used to measure the molecular expression. TdT-mediated dUTP nick-end labeling staining was used to assess apoptosis. Transmission electron microscopy was used to observe autophagosomes. After treatment, compared with those of the BCNC group, erectile function and cavernosal hypoxia had statistically significantly improved (P < 0.05). Apoptosis and the relative protein expression of B-cell lymphoma-2-associated X and cleaved Caspase3 were decreased (P < 0.05). Autophagy-related molecules such as phosphorylated unc-51-like autophagy-activating kinase 1 (Ser757) and p62 were decreased. Beclin1, microtubule-associated protein 1 light chain 3 A/B, and autophagosomes were increased (P < 0.05). Besides, the phosphatidylinositol 3-kinase/AKT/mammalian target of rapamycin signaling pathway, as a negative regulator of autophagy to some degree, was inhibited. This study revealed that vacuum therapy ameliorated pPED in BCNC rats by inhibiting apoptosis and activating autophagy.
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Affiliation(s)
- Chang-Jing Wu
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Fu-Dong Fu
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
- Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Feng Qin
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ming Ma
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Tao Li
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Shan-Zun Wei
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Bo-Tao Yu
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xin-Zong Yang
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jiu-Hong Yuan
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
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10
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Couplet medicines of leech and centipede granules improve erectile dysfunction via inactivation of the CaSR/PLC/PKC signaling in streptozotocin-induced diabetic rats. Biosci Rep 2020; 40:221835. [PMID: 31922200 PMCID: PMC7000366 DOI: 10.1042/bsr20193845] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/05/2020] [Accepted: 01/08/2020] [Indexed: 01/20/2023] Open
Abstract
Erectile dysfunction (ED) is one of the significant complications of diabetes mellitus (DM), and CASR plays an important role in cellular antiapoptosis and NO production in the vascular endothelium by activating PKC. The present study was aimed to investigate the efficacy of Leech and Centipede Granules (LCG) through the CaSR/PLC/PKC signaling. Fifty male Sprague-Dawley rats were treated with streptozotocin to induce the DM model. After 10 weeks, an apomorphine test was used to confirm DMED. Rats with DMED were administrated with LCG and U73122 for 4 weeks. Fasting blood glucose, body weight, insulin and glucagon levels were measured. Erectile function in rats was assessed by apomorphine. Serums were measured using enzyme-linked immunosorbent assay and flow cytometry, and penile tissues were harvested for histologic and the expression of related targets analyses. After treatment, fasting blood glucose, body weight, insulin, glucagon levels, and erectile function were significantly ameliorated in the LCG groups. The LOX-1, NOX, and EMPs concentrations were significantly decreased with LCG treatment. LCG also continuously increased NO and decreased ET-1 content in penile tissues. LCG and U73122 administration also improved penile fibrosis by significantly decreasing VCAM-1, ICAM-1, and CD62P. The data also showed that LCG reduced the apoptosis level in the penis. Furthermore, the inhibited activation of the CaSR/PLC/PKC pathway was observed in DMED rats with LCG treatment. Collectively, LCG significantly ameliorated erectile function of DMED rats via increased NO generation, inhibiting endothelial cells apoptosis and penile fibrosis, which might benefit from the suppression of CaSR/PLC/PKC pathway in DMED rats.
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