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Kotsuka M, Hashimoto Y, Nakatake R, Okuyama T, Hatta M, Yoshida T, Okumura T, Nishizawa M, Kaibori M, Sekimoto M. Omeprazole Increases Survival Through the Inhibition of Inflammatory Mediaters in Two Rat Sepsis Models. Shock 2022; 57:444-456. [PMID: 34923545 PMCID: PMC8868211 DOI: 10.1097/shk.0000000000001897] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/14/2021] [Accepted: 11/29/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Omeprazole (OMZ) is a proton pump inhibitor that is used to reduce gastric acid secretion, but little is known about its possible liver protective effects. This study investigated whether OMZ has beneficial effects in rat septic models of LPS-induced liver injury after D-galactosamine (GalN) treatment and 70% hepatectomy (PH), and to determine the mechanisms of OMZ in an in vitro model of liver injury. METHODS In the in vivo models, the effects of OMZ were examined 1 h before treatments in both models on survival, nuclear factor (NF)-κB activation, histopathological analysis, and proinflammatory mediator expression in the liver and serum. In the in vitro model, primary cultured rat hepatocytes were treated with IL-1β in the presence or absence of OMZ. The influence of OMZ on nitric oxide (NO) product and inducible NO synthase (iNOS) induction and on the associated signaling pathway was analyzed. RESULTS OMZ increased survival and decreased tumor necrosis factor-alpha, iNOS, cytokine-induced neutrophil chemoattractant 1, IL-6, and IL-1β mRNA expression, and increased IL-10 mRNA expression in the livers of both GaIN/LPS- and PH/LPS-treated rats. Necrosis and apoptosis were inhibited by OMZ in GaIN/LPS rats, but OMZ had no effects on necrosis in PH/LPS rats. OMZ inhibited iNOS induction partially through suppression of NF-κB signaling in hepatocytes. CONCLUSIONS OMZ inhibited the induction of several inflammatory mediators, resulting in the prevention of LPS-induced liver injury after GalN liver failure and PH, although OMZ showed different doses and mechanisms in the two models.
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Affiliation(s)
- Masaya Kotsuka
- Department of Surgery, Kansai Medical University, Hirakata, Osaka Japan
| | - Yuki Hashimoto
- Department of Surgery, Kansai Medical University, Hirakata, Osaka Japan
| | - Richi Nakatake
- Department of Surgery, Kansai Medical University, Hirakata, Osaka Japan
| | - Tetsuya Okuyama
- Department of Surgery, Kansai Medical University, Hirakata, Osaka Japan
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Masahiko Hatta
- Department of Surgery, Kansai Medical University, Hirakata, Osaka Japan
| | - Terufumi Yoshida
- Department of Surgery, Kansai Medical University, Hirakata, Osaka Japan
| | - Tadayoshi Okumura
- Department of Surgery, Kansai Medical University, Hirakata, Osaka Japan
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Mikio Nishizawa
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Masaki Kaibori
- Department of Surgery, Kansai Medical University, Hirakata, Osaka Japan
| | - Mitsugu Sekimoto
- Department of Surgery, Kansai Medical University, Hirakata, Osaka Japan
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Ito T, Yamamoto Y, Yamagishi N, Kanai Y. Stomach secretes estrogen in response to the blood triglyceride levels. Commun Biol 2021; 4:1364. [PMID: 34876651 PMCID: PMC8651635 DOI: 10.1038/s42003-021-02901-9] [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] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 11/23/2021] [Indexed: 11/29/2022] Open
Abstract
Mammals receive body energy information to maintain energy homeostasis. Ghrelin, insulin, leptin and vagal afferents transmit the status of fasting, blood glucose, body fat, and food intake, respectively. Estrogen also inhibits feeding behavior and lipogenesis, but increases body fat mass. However, how blood triglyceride levels are monitored and the physiological roles of estrogen from the perspective of lipid homeostasis remain unsettled. Here, we show that stomach secretes estrogen in response to the blood triglyceride levels. Estrogen-secreting gastric parietal cells predominantly use fatty acids as an energy source. Blood estrogen levels increase as blood triglyceride levels rise in a stomach-dependent manner. Estrogen levels in stomach tissues increase as blood triglyceride levels rise, and isolated gastric gland epithelium produces estrogen in a fatty acid-dependent manner. We therefore propose that stomach monitors and controls blood triglyceride levels using estrogen, which inhibits feeding behavior and lipogenesis, and promotes triglyceride uptake by adipocytes.
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Affiliation(s)
- Takao Ito
- Cell Biology and Anatomy, Graduate School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Yuta Yamamoto
- Cell Biology and Anatomy, Graduate School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Naoko Yamagishi
- Cell Biology and Anatomy, Graduate School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Yoshimitsu Kanai
- Cell Biology and Anatomy, Graduate School of Medicine, Wakayama Medical University, Wakayama, Japan.
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Abstract
Autologous cancellous bone (ACB) grafting is the "gold standard" treatment for delayed bone union. However, small animal models for such grafts are lacking. Here, we developed an ACB graft rat model. Anatomical information regarding the iliac structure was recorded from five rat cadavers (10 ilia). Additionally, 5 and 25 rats were used as controls and ACB graft models, respectively. A defect was created in rat femurs and filled with ACB. Post-graft neo-osteogenic potential was assessed by radiographic evaluation and histological analysis. Iliac bone harvesting yielded the maximum amount of cancellous bone with minimal invasiveness, considering the position of parailiac nerves and vessels. The mean volume of cancellous bone per rat separated from the cortical bone was 73.8 ± 5.5 mm3. Bone union was evident in all ACB graft groups at 8 weeks, and new bone volume significantly increased every 2 weeks (P < 0.001). Histological analysis demonstrated the ability of ACB grafts to act as a scaffold and promote bone union in the defect. In conclusion, we established a stable rat model of ACB grafts by harvesting the iliac bone. This model can aid in investigating ACB grafts and development of novel therapies for bone injury.
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Durup D, Diaz-delCastillo M, Morgenlykke J, Jensen LT, Frandsen E, Abelson KSP, Pedersen L, Lykkesfeldt J, Ding M, Jørgensen NR, Syberg S, Petersen S, Heegaard AM. Hypophosphatemic Hypovitaminosis D Induces Osteomalacia in the Adult Female Rat. Endocrinology 2020; 161:5863599. [PMID: 32591825 DOI: 10.1210/endocr/bqaa100] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 06/19/2020] [Indexed: 01/21/2023]
Abstract
Osteomalacia is a bone-demineralizing disease of adulthood, often caused by hypovitaminosis D. Current animal models of the disease mimic osteomalacia as a consequence of gastric bypass or toxic exposure to metals, but a relevant model of diet-induced osteomalacia is lacking. For that purpose, 7-month-old female Sprague Dawley rats were randomly assigned into 2 weight-stratified groups and maintained for 4 months on synthetic diets containing negligible or normal levels of vitamin D. The dietary regimen resulted in vitamin D deficiency as measured by 25-hydroxyvitamin D serum levels; however, hypovitaminosis D per se did not affect biomarkers of calcium metabolism and bone turnover, nor did it result in increased osteoid. Thus, vitamin D depletion through the diet was found to be insufficient to induce an osteomalacia-like phenotype in the adult rat. After 4 months, the phosphate content of the vitamin D-depleted diet had decreased to 0.16% (calcium:phosphorus ratio of 5.85), resulting in an osteomalacic-like condition (trabecular osteoid surface/bone surface constituted 33%; CI, 26-40). The diet change also affected both metabolic and bone turnover biomarkers, including significantly suppressing serum fibroblast growth factor 23. Furthermore, decreased dietary phosphate in a vitamin D-depleted diet led to microarchitectural changes of trabecular and cortical bone, lower bone mass density, lower bone mass content and decreased bone strength, all indicating reduced bone quality. Taken together, our results show that osteomalacia can be induced in the adult female rat by depleting vitamin D and lowering phosphate content in the diet.
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Affiliation(s)
- Darshana Durup
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Marta Diaz-delCastillo
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jesper Morgenlykke
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Erik Frandsen
- Department of Nuclear Medicine, Herlev University, Herlev, Denmark
| | - Klas S P Abelson
- Department of Experimental Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Jens Lykkesfeldt
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ming Ding
- Department of Orthopaedic Surgery and Traumatology, Odense University Hospital, Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | | | - Susanne Syberg
- Osteoporosis Unit and Research Centre of Ageing and Osteoporosis, Department of Medicine, Glostrup University Hospital, Glostrup, Denmark
| | - Solveig Petersen
- Osteoporosis Unit and Research Centre of Ageing and Osteoporosis, Department of Medicine, Glostrup University Hospital, Glostrup, Denmark
| | - Anne-Marie Heegaard
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Nakatake R, Hishikawa H, Kotsuka M, Ishizaki M, Matsui K, Nishizawa M, Yoshizawa K, Kaibori M, Okumura T. The Proton Pump Inhibitor Lansoprazole Has Hepatoprotective Effects in In Vitro and In Vivo Rat Models of Acute Liver Injury. Dig Dis Sci 2019; 64:2854-2866. [PMID: 30989463 DOI: 10.1007/s10620-019-05622-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 04/08/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND/AIMS The proton pump inhibitor lansoprazole (LPZ) is clinically used to reduce gastric acid secretion, but little is known about its possible hepatoprotective effects. This study aimed to investigate the hepatoprotective effects of LPZ and its potential mechanisms using in vitro and in vivo rat models of liver injury. METHODS For the in vitro model of liver injury, primary cultured rat hepatocytes were treated with interleukin-1β in the presence or absence of LPZ. The influence of LPZ on inducible nitric oxide synthase (iNOS) induction and nitric oxide (NO) production and on the associated signaling pathways was analyzed. For the in vivo model, rats were treated with D-galactosamine (GalN) and lipopolysaccharide (LPS). The effects of LPZ on survival and proinflammatory mediator expression (including iNOS and tumor necrosis factor-α) in these rats were examined. RESULTS LPZ inhibited iNOS induction partially through suppression of the nuclear factor-kappa B signaling pathway in hepatocytes, thereby reducing potential liver injury from excessive NO levels. Additionally, LPZ increased survival by 50% and decreased iNOS, tumor necrosis factor-α, and cytokine-induced neutrophil chemoattractant-1 mRNA expression in the livers of GalN/LPS-treated rats. LPZ also inhibited nuclear factor-kappa B activation by GalN/LPS. CONCLUSIONS LPZ inhibits the induction of several inflammatory mediators (including cytokines, chemokines, and NO) partially through suppression of nuclear factor-kappa B, resulting in the prevention of fulminant liver failure. The therapeutic potential of LPZ for liver injuries warrants further investigation.
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Affiliation(s)
- Richi Nakatake
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan.
| | - Hidehiko Hishikawa
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Masaya Kotsuka
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Morihiko Ishizaki
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Kosuke Matsui
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Mikio Nishizawa
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan
| | - Katsuhiko Yoshizawa
- Laboratory of Environmental Sciences, Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, 6-46 Ikebiraki-cho, Nishinomiya, Hyogo, 663-8558, Japan
| | - Masaki Kaibori
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Tadayoshi Okumura
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan.,Research Organization of Science and Technology, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan
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Yoshida Y, Matsubara H, Fang X, Hayashi K, Nomura I, Ugaji S, Hamada T, Tsuchiya H. Adipose-derived stem cell sheets accelerate bone healing in rat femoral defects. PLoS One 2019; 14:e0214488. [PMID: 30921414 PMCID: PMC6438603 DOI: 10.1371/journal.pone.0214488] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/13/2019] [Indexed: 12/15/2022] Open
Abstract
In the present study, we investigated whether both adipose-derived stem cell (ADSC) and osteogenic-induced ADSC sheets could promote bone healing in a rat distal femoral metaphysis bone defect model. A through-hole defect of 1 mm diameter was drilled into each distal femur of 12 week old rats. Forty-five rats were randomly assigned to three groups: (1) control group; (2) ADSC sheet group; or (3) osteogenic-induced ADSC sheet group. We evaluated each group by analysis of computerized tomography scans every week after the surgery, histological analysis, and DiI labeling (a method of membrane staining for post implant cell tracing). Radiological and histological evaluations showed that a part of the hole persisted in the control group at four weeks after surgery, whereas the hole was restored almost completely by new bone formation in both sheet groups. The mean value of bone density (in Houndsfield units) for the bone defect area was significantly higher in both sheet groups than that in the control group (p = 0.05) at four weeks postoperative. A large number of osteocalcin positive osteoblasts were observed at the area of bone defect, especially in the osteogenic-induced ADCS sheet group. DiI labeling in the newly formed bone showed that each sheet had differentiated into bone tissue at four weeks after surgery. The ADSC and the osteogenic-induced ADSC sheets promoted significantly quicker bone healing in the bone defect. Moreover, the osteogenic-induced ADSC sheet may be more advantageous for bone healing than the ADSC sheet because of the higher number of osteocalcin positive osteoblasts via the transplantation.
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Affiliation(s)
- Yasuhisa Yoshida
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Hidenori Matsubara
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Xiang Fang
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Katsuhiro Hayashi
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Issei Nomura
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Shuhei Ugaji
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Tomo Hamada
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Hiroyuki Tsuchiya
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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7
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Liu C, Wang L, Zhu R, Liu H, Ma R, Chen B, Li L, Guo Y, Jia Q, Shi S, Zhao D, Mo F, Zhao B, Niu J, Fu M, Orekhov AN, Brömme D, Gao S, Zhang D. Rehmanniae Radix Preparata suppresses bone loss and increases bone strength through interfering with canonical Wnt/β-catenin signaling pathway in OVX rats. Osteoporos Int 2019; 30:491-505. [PMID: 30151623 DOI: 10.1007/s00198-018-4670-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 08/13/2018] [Indexed: 12/17/2022]
Abstract
UNLABELLED Rehmanniae Radix Preparata (RRP) improves bone quality in OVX rats through the regulation of bone homeostasis via increasing osteoblastogenesis and decreasing osteoclastogenesis, suggesting it has a potential for the development of new anti-osteoporotic drugs. INTRODUCTION Determine the anti-osteoporotic effect of RRP in ovariectomized (OVX) rats and identify the signaling pathway involved in this process. METHODS OVX rats were treated with RRP aqueous extract for 14 weeks. The serum levels of tartrate-resistant acid phosphatase (TRAP), receptor activator of nuclear factor kappa-Β ligand (RANKL), alkaline phosphatase (ALP), and osteoprotegerin (OPG) were determined by ELISA. Bone histopathological alterations were evaluated by H&E, Alizarin red S, and Safranin O staining. Bone mineral density (BMD) and bone microstructure in rat femurs and lumbar bones were determined by dual-energy X-ray absorptiometry and micro-computed tomography. Femoral bone strength was detected by a three-point bending assay. The expression of Phospho-glycogen synthase kinase 3 beta (p-GSK-3β), GSK-3β, Dickkopf-related protein 1 (DKK1), cathepsin K, OPG, RANKL, IGF-1, Runx2, β-catenin, and p-β-catenin was determined by western blot and/or immunohistochemical staining. RESULTS Treatment of OVX rats with RRP aqueous extract rebuilt bone homeostasis demonstrated by increasing the levels of OPG as well as decreasing the levels of TRAP, RANKL, and ALP in serum. Furthermore, RRP treatment preserved BMD and mechanical strength by increasing cortical bone thickness and epiphyseal thickness as well as improving trabecular distribution in the femurs of OVX rats. In addition, RRP downregulated the expression of DKK1, sclerostin, RANKL, cathepsin K, and the ratio of p-β-catenin to β-catenin, along with upregulating the expression of IGF-1, β-catenin, and Runx2 and the ratio of p-GSK-3β to GSK-3β in the tibias and femurs of OVX rats. Echinacoside, jionoside A1/A2, acetoside, isoacetoside, jionoside B1, and jionoside B2 were identified in the RRP aqueous extract. CONCLUSION RRP attenuates bone loss and improves bone quality in OVX rats partly through its regulation of the canonical Wnt/β-catenin signaling pathway, suggesting that RRP has the potential to provide a new source of anti-osteoporotic drugs.
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Affiliation(s)
- C Liu
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
- Chinese Materia Medica School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - L Wang
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
- Chinese Materia Medica School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - R Zhu
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - H Liu
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - R Ma
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - B Chen
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - L Li
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - Y Guo
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
- The Third Affiliated Clinical Hospital, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Q Jia
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - S Shi
- Chinese Materia Medica School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - D Zhao
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - F Mo
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - B Zhao
- Chinese Materia Medica School, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - J Niu
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - M Fu
- The Research Institute of McGill University Health Center, Montreal, Quebec, H4A 3J1, Canada
| | - A N Orekhov
- Laboratory of Angiopathology, Russian Academy of Medical Sciences, Institute of General Pathology and Pathophysiology, Moscow, 125315, Russia
| | - D Brömme
- Department of Oral Biological & Medical Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - S Gao
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - D Zhang
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China.
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Liu C, Zhu R, Liu H, Li L, Chen B, Jia Q, Wang L, Ma R, Tian S, Wang M, Fu M, Niu J, Orekhov AN, Gao S, Zhang D, Zhao B. Aqueous Extract of Mori Folium Exerts Bone Protective Effect Through Regulation of Calcium and Redox Homeostasis via PTH/VDR/CaBP and AGEs/RAGE/Nox4/NF-κB Signaling in Diabetic Rats. Front Pharmacol 2018; 9:1239. [PMID: 30459613 PMCID: PMC6233025 DOI: 10.3389/fphar.2018.01239] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 10/11/2018] [Indexed: 12/16/2022] Open
Abstract
Purpose: The present study is aimed to explore whether the aqueous extract of Mori Folium (MF) exhibits bone protective effect by regulating calcium and redox homeostasis in diabetic rats, and to identify the signaling pathways involved in this process. Methods: Diabetic rats were established using high-sugar and high-fat diet and streptozotocin (STZ) (30 mg/kg for 3 consecutive days). The serum levels of osteocalcin (OC), insulin-like growth factor-1 (IGF-1), tartrate-resistant acid phosphatase (TRAP), phosphorus (P), calcium (Ca), 1,25-dihydroxyvitamin D3 [1,25(OH)2D3], parathormone (PTH), advanced glycation end products (AGEs), superoxide dismutase (SOD), and malondialdehyde (MDA), total antioxidant capacity (TAC), 8-hydroxy-2'-deoxyguanosine (8-OH-dG), and interleukin 6 (IL-6) were determined by ELISA or biochemical assays. Histopathological alterations in the femurs were evaluated by the stainings of hematoxylin-eosin (H&E) and alizarin red S. In addition, femoral strength was detected by a three-point bending assay, bone microstructure was detected with micro-computer tomography. Bone material properties were examined by Fourier-transform infrared spectroscopy. Furthermore, the expressions of IGF-1, runt-related transcription factor 2 (Runx2), osteoprotegerin (OPG), receptor activator of nuclear factor kappa-B ligand (RANKL), cathepsin K, AGEs, receptor of advanced glycation end products (RAGE), NADPH oxidase 4 (Nox4), and nuclear factor kappa-B (NF-κB) in the femurs and tibias, and the alterations in the levels of calcium-binding protein-28k (CaBP-28k), transient receptor potential V6 (TRPV6), and vitamin D receptor (VDR) in the kidneys and duodenums were determined by western blot and immunohistochemical analysis. Results: Treatment of diabetic rats with MF aqueous extract induces an increase in the levels of OC and IGF-1 as well as a decrease in TRAP level in serum. MF treatment also upregulates the expression of OPG, downregulates the expressions of AGEs, RAGE, Nox4, NF-κB, and RANKL, which leads to improve bone microstructure and strength exhibited by an increase in cortical area ratio, cortical thickness, and trabecular area ratio as well as ultimate load, elastic modulus, and bending stress in the femurs and tibias of diabetic rats. In addition, MF aqueous extract preserves bone material properties by decreasing the ratio of fatty acid/collagen and increasing the ratio of mineral/matrix in the femurs of diabetic rats. Moreover, MF treatment increases the levels of P, Ca, and 1,25(OH)2D3, and decreases the level of PTH in the serum, as well as upregulates the expressions of TRPV6 and VDR in the duodenums and CaBP-28k in the kidneys of diabetic rats. Additionally, MF has ability of rebuilding redox homeostasis and eliminating inflammatory stress by increasing the levels of SOD and TAC as well as decreasing the levels of IL-6, AGEs, MDA, and 8-OH-dG. Conclusions: MF treatment may improve bone quality through maintenance of calcium homeostasis via regulating the PTH/VDR/CaBP signaling, and elimination of oxidative stress via regulating the AGEs/RAGE/Nox4/NF-κB signaling. These results may suggest the potential of MF in preventing the development of diabetic osteoporosis.
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Affiliation(s)
- Chenyue Liu
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Ruyuan Zhu
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Haixia Liu
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Lin Li
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Beibei Chen
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Qiangqiang Jia
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Lili Wang
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Rufeng Ma
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Simin Tian
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Min Wang
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Min Fu
- The Research Institute of McGill University Health Center, Montreal, QC, Canada
| | - Jianzhao Niu
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Alexander N. Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Sihua Gao
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Dongwei Zhang
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Baosheng Zhao
- Beijing Research Institute of Chinese medicine, Beijing University of Chinese Medicine, Beijing, China
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Fujioka-Kobayashi M, Tsuru K, Nagai H, Fujisawa K, Kudoh T, Ohe G, Ishikawa K, Miyamoto Y. Fabrication and evaluation of carbonate apatite-coated calcium carbonate bone substitutes for bone tissue engineering. J Tissue Eng Regen Med 2018; 12:2077-2087. [PMID: 30058260 DOI: 10.1002/term.2742] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 07/11/2018] [Accepted: 07/13/2018] [Indexed: 12/19/2022]
Abstract
Carbonate apatite-coated calcium carbonate (CO3 Ap/CaCO3 ) was fabricated through a dissolution-precipitation reaction using CaCO3 granules as a precursor to accelerate bone replacement based on superior osteoconductivity of the CO3 Ap shell, along with Ca2+ release from the CaCO3 core and quicker resorption of the CaCO3 core. In the present study, CaCO3 , 10% CO3 Ap/CaCO3 , 30% CO3 Ap/CaCO3 , and CO3 Ap granules were fabricated and examined histologically to evaluate their potential as bone substitutes. Larger contents of CaCO3 in the granules resulted in higher Ca2+ release and promoted cell proliferation of murine preosteoblasts at 6 days compared with CO3 Ap. Interestingly, in a rabbit femur defect model, 10% CO3 Ap/CaCO3 induced significantly higher new bone formation and higher material resorption compared with CO3 Ap at 8 weeks. Nevertheless, CO3 Ap showed a superior osteoconductive potential compared with 10% CO3 Ap/CaCO3 at 8 weeks. All tested granules were most likely resorbed by cell mediation including multinucleated giant cell functions. Therefore, we conclude that CO3 Ap/CaCO3 has a positive potential for bone tissue engineering based on well-controlled calcium release, bone formation, and material resorption.
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Affiliation(s)
- Masako Fujioka-Kobayashi
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.,Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Kanji Tsuru
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.,Department of Dental Engineering, Section of Bioengineering, Division of Biomedical Science, Fukuoka Dental College, Fukuoka, Japan
| | - Hirokazu Nagai
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.,Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Kenji Fujisawa
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.,Department of Oral Health Sciences, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Japan
| | - Takaharu Kudoh
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Go Ohe
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Kunio Ishikawa
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Youji Miyamoto
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Atypical skeletal manifestations of rickets in a familial hypocalciuric hypercalcemia patient. Bone Res 2017; 5:17001. [PMID: 28690912 PMCID: PMC5486235 DOI: 10.1038/boneres.2017.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/03/2016] [Accepted: 11/15/2016] [Indexed: 11/19/2022] Open
Abstract
Familial hypocalciuric hypercalcemia (FHH) is caused by inactivating mutations in the calcium-sensing receptor (CaSR) gene. The loss of function of CaSR presents with rickets as the predominant skeletal abnormality in mice, but is rarely reported in humans. Here we report a case of a 16-year-old boy with FHH who presented with skeletal manifestations of rickets. To identify the possible pathogenic mutation, the patient was evaluated clinically, biochemically, and radiographically. The patient and his family members were screened for genetic mutations. Physical examination revealed a pigeon breast deformity and X-ray examinations showed epiphyseal broadening, both of which indicate rickets. Biochemical tests also showed increased parathyroid hormone (PTH), 1,25-dihydroxyvitamin D, and elevated ionized calcium. Based on these results, a diagnosis of FHH was suspected. Sequence analysis of the patient’s CaSR gene revealed a new missense mutation (c.2279T>A) in exon 7, leading to the damaging amino change (p.I760N) in the mature CaSR protein, confirming the diagnosis of FHH. Moreover, the skeletal abnormities may be related to but not limited to vitamin D abnormity. Elevated PTH levels and a rapid skeletal growth period in adolescence may have also contributed. Our study revealed that rickets-like features have a tendency to present atypically in FHH patients who have a mild vitamin D deficiency, and that CaSR mutations may have a partial role in the pathogenesis of skeletal deformities.
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11
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Nrf2-inducing anti-oxidation stress response in the rat liver--new beneficial effect of lansoprazole. PLoS One 2014; 9:e97419. [PMID: 24846271 PMCID: PMC4028208 DOI: 10.1371/journal.pone.0097419] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 04/18/2014] [Indexed: 11/26/2022] Open
Abstract
Lansoprazole is a potent anti-gastric ulcer drug that inhibits gastric proton pump activity. We identified a novel function for lansoprazole, as an inducer of anti-oxidative stress responses in the liver. Gastric administration of lansoprazole (10–100 mg/kg) to male Wistar rats produced a dose-dependent increase in hepatic mRNA levels of nuclear factor, erythroid-derived 2, -like 2 (Nrf2), a redox-sensitive transcription factor, at 3 h and Nrf2 immunoreactivity (IR) in whole hepatic lysates at 6 h. Conversely, the levels of Kelch-like ECH-associated protein (Keap1), which sequesters Nrf2 in the cytoplasm under un-stimulated conditions, were unchanged. Translocation of Nrf2 into the nuclei of hepatocytes was observed using western blotting and immunohistochemistry. Expression of mRNAs for Nrf2-dependent antioxidant and phase II enzymes, such as heme oxygenase 1 (HO-1), NAD (P) H dehydrogenase, quinone 1 (Nqo1), glutathione S-transferase A2 (Gsta2), UDP glucuronosyltransferase 1 family polypeptide A6 (Ugt1a6), were dose-dependently up-regulated at 3 h. Furthermore, the levels of HO-1 IR were dose-dependently increased in hepatocytes at 6 h. Subcutaneous administration of lansoprazole (30 mg/kg/day) for 7 successive days resulted in up-regulation and nuclear translocation of Nrf2 IR in hepatocytes and up-regulation of HO-1 IR in the liver. Pretreatment with lansoprazole attenuated thioacetamide (500 mg/kg)-induced acute hepatic damage via both HO-1-dependent and -independent pathways. Up-stream networks related to Nrf2 expression were investigated using microarray analysis, followed by data mining with Ingenuity Pathway Analysis. Up-regulation of the aryl hydrocarbon receptor (AhR)-cytochrome P450, family 1, subfamily a, polypeptide 1 (Cyp1a1) pathway was associated with up-regulation of Nrf2 mRNA. In conclusion, lansoprazole might have an alternative indication in the prevention and treatment of oxidative hepatic damage through the induction of both phase I and phase II drug-metabolizing systems, i.e. the AhR/Cyp1a1/Nrf2 pathway in hepatocytes.
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