scholarly journals Supplementation of Morin Restores the Altered Bone Histomorphometry in Hyperglycemic Rodents via Regulation of Insulin/IGF-1 Signaling

Nutrients ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 2365
Author(s):  
Hatem M. Abuohashish ◽  
Abdullah F. AlAsmari ◽  
Mohamed Mohany ◽  
Mohammed M. Ahmed ◽  
Salim S. Al-Rejaie

Pathological mechanisms underlining diabetic bone defects include oxidative damage and insulin/IGF-1 imbalance. Morin is a bioflavonoid with antioxidant and anti-diabetic effects. This study evaluates morin’s protective effects against altered bone histomorphometry in diabetic rats through assessing insulin/IGF-1 pathway as a potential mechanism. Diabetic animals were administered two morin doses (15 and 30 mg/kg) for 5 weeks. Different serum hepatic and renal functions tests were assessed. Bone density and histomorphometry in cortical and trabecular tissues were evaluated histologically. The expressions of insulin, c-peptide and IGF-1 were estimated. In addition, the enzymatic activities of the major antioxidant enzymes were determined. Diabetic-associated alterations in serum glucose, aminotransferases, urea and creatinine were attenuated by morin. Diabetic bone cortical and trabecular histomorphometry were impaired with increased fibrosis, osteoclastic functions, osteoid formation and reduced mineralization, which was reversed by morin; particularly the 30 mg/kg dose. Insulin/IGF-1 levels were diminished in diabetic animals, while morin treatment enhanced their levels significantly. Diabetes also triggered systemic oxidative stress noticeably. The higher dose (30 mg/kg) of morin corrected the endogenous antioxidant enzymatic activities in diabetic rats. Findings indicate the potential value of morin supplementation against hyperglycemia-induced skeletal impairments. Activation of insulin/IGF-1 signaling could be the underlining mechanism behind these effects.

2016 ◽  
Vol 5 (06) ◽  
pp. 4641 ◽  
Author(s):  
Adel Abdel Moneim* ◽  
Sanaa M. Abd El-Twab ◽  
Mohamed B. Ashour ◽  
Ahmed I. Yousef

The goal of diabetes treatment is primarily to save life and alleviate symptoms and secondary to prevent long-term diabetic complications resulting from hyperglycemia. Thus, our present investigation was designed to evaluate the hepato-renal protective effects of gallic acid and p-coumaric acid in nicotinamide/streptozotocin (NA/STZ)-induced diabetic rats. Experimental type 2 diabetes was induced by a single intraperitoneal (i.p.) injection of STZ (65 mg/kg b.wt.), after 15 min of i.p. injection of NA (120 mg/kg b.wt.). Gallic acid and p-coumaric acid were orally administered to diabetic rats at a dose of 20, 40 mg/kg b.wt./day, respectively, for 6 weeks. Body weight, serum glucose, protein profile, liver function enzymes and kidney function indicators was assayed. Treatment with either gallic acid or p-coumaric acid significantly ameliorated the elevated levels of glucose, alanine aminotransferase (ALT), aspartate aminotransferase (AST), urea and uric acid. Both compounds were also found to restore total protein, albumin, and globulin as well as body weight of diabetic rats to near normal values. It can conclude that both gallic acid and p-coumaric acid have potent hypoglycemic and hepato-renal protective effects in diabetic rats. Therefore, our results suggest promising hypoglycemic agents that can attenuate the progression of diabetic hepatopathy and nephropathy.


2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Mirjana Mihailović ◽  
Jelena Arambašić Јovanović ◽  
Aleksandra Uskoković ◽  
Nevena Grdović ◽  
Svetlana Dinić ◽  
...  

The aim of this study was to assess thein vivoeffects of the extract of the medicinal mushroom,Lactarius deterrimus, when administered (60 mg/kg, i.p.) daily for four weeks to streptozotocin- (STZ-) induced diabetic rats. Diabetic rats treated with theL. deterrimusextract displayed several improved biochemical parameters in the circulation: reduced hyperglycemia, lower triglyceride concentration and reduced glycated hemoglobin, glycated serum protein, and advanced glycation end product (AGE) levels. This treatment also adjusted the diabetes-induced redox imbalance. Thus, higher activities of the antioxidative enzymes, superoxide dismutase, and catalase in the circulation were accompanied by increased levels of free intracellular thiols and glutathionylated proteins after treatment with theL. deterrimusextract. In addition to a systemic antioxidant effect, the administration of the extract to diabetic rats also had a positive localized effect on pancreatic islets where it decreased AGE formation, and increased the expression of chemokine CXCL12 protein that mediates the restoration ofβ-cell population through the activation of the serine/threonine-specific Akt protein kinase prosurvival pathway. As a result, the numbers of proliferating cell nuclear antigen- (PCNA-) and insulin-positiveβ-cells were increased. These results show that the ability of theL. deterrimusextract to alleviate oxidative stress and increaseβ-cell mass represents a therapeutic potential for diabetes management.


Molecules ◽  
2019 ◽  
Vol 24 (10) ◽  
pp. 1871 ◽  
Author(s):  
Shanshan Qi ◽  
Jia He ◽  
Hongxing Zheng ◽  
Chen Chen ◽  
Shiqiang Lan

Diabetic Osteoporosis (DOP) is a common metabolic bone disease, characterized by decreased bone mineral density (BMD) and destruction of bone microstructure. It has been reported that icariin is beneficial for estrogen deficiency-induced osteoporosis, and alcohol-induced osteoporosis; whether icariin has protective effects on diabetes-induced osteoporosis has not been reported. In this study, a rat model of diabetic osteoporosis was established by streptozotocin injection, the bone protective effects and potential mechanism of icariin on diabetes-induced bone loss was observed. Thirty 8-week-old female Sprague Dawley rats were divided into control group (vehicle treatment), T1DM (diabetic) group and T1DM-icariin (ICA) group (diabetic rats treated with icariin), 10 rats in each group. The bone histomorphometry parameters, bone mineral density (BMD), serum bone turnover markers, and bone marrow adipogenesis were analyzed after 8 weeks of icariin administration. The results showed consumption of icariin at a doses of 100 mg kg−1 decreased blood glucose, and increased the BMD of diabetic rats. Icariin effectively decreased serum bone turnover marker levels, including CTX-1, ALP, TRACP 5b, osteocalcin, and PINP. Meanwhile, the bone histomorphometry parameters, the number of osteoclasts per bone perimeter were turned to be normal level, and the icariin treatment suppressed bone marrow adipogenesis. The runt-related transcription factor 2 (RUNX 2), as well as the osteoprotegerin (OPG)/receptor activator of nuclear factor-κ B ligand (RANKL) ratio in serum and bone tissues were increased significantly after icariin treatment in diabetic rats. All of the above indicate that oral administration of icariin can prevent diabetic osteoporosis; the effect is mainly related to its ability to reduce blood glucose, inhibit bone turnover and bone marrow adipogenesis, as well as up-regulate bone RUNX 2, and OPG expression.


2014 ◽  
Vol 50 (4) ◽  
pp. 765-771 ◽  
Author(s):  
Ma Song-Tao ◽  
Liu Dong-lian ◽  
Deng Jing-jing ◽  
Peng Yan-juan

Mulberry leaves (Morus alba L.) are a traditional Chinese medicine for blood serum glucose reduction. This study evaluated the protective effects of mulberry flavonoids on sciatic nerve in alloxan-induced diabetic rats. In this study, 80 Sprague-Dawley rats were divided into five groups: A (control), B (diabetic treated with saline), C-D (diabetic treated with 0.3, 0.1 g/kg mulberry flavonoids once a day for 8 weeks) and E (diabetic treated with 0.3 mg/kg methycobal). The diabetic condition was induced by intraperitoneal injection of 200 mg/kg alloxan dissolved in saline. At the end of the experimental period, blood, and tissue samples were obtained for biochemical and histopathological investigation. Treatment with 0.3 g/kg mulberry flavonoids significantly inhibited the elevated serum glucose (P< 0.01). The increased myelin sheath area (P< 0.01), myelinated fiber cross-sectional area and extramedullary fiber number (P< 0.05) were also reduced in alloxan-induced rats treated with 0.3 g/kg mulberry flavonoids. 0.3 g/kg mulberry flavonoids also markedly decreased onion-bulb type myelin destruction and degenerative changes of mitochondria and Schwann cells. These findings demonstrate that mulberry flavonoids may improve the recovery of a severe peripheral nerve injury in alloxan-induced diabetic rats and is likely to be useful as a potential treatment on peripheral neuropathy (PN) in diabetic rats.


2017 ◽  
Vol 2017 ◽  
pp. 1-2 ◽  
Author(s):  
Mirjana Mihailović ◽  
Jelena Arambašić Јovanović ◽  
Aleksandra Uskoković ◽  
Nevena Grdović ◽  
Svetlana Dinić ◽  
...  

2020 ◽  
Vol 11 (2) ◽  
pp. 2095-2100
Author(s):  
Lamia Mellahi ◽  
Zouhir Djerrou ◽  
Noureddine Bouzerna

The present study aimed to determine the possible protective effects of intraperitoneally administered sodium selenite for preventing diabetes in rats. Twenty-eight male albino rats were randomly divided into four equal groups of seven each: untreated control (G1), sodium selenite treated control (G2), untreated diabetic (G3), and sodium selenite-treated diabetic group (G4). Diabetes was induced by alloxan (150 mg/kg body weight) in groups G3 and G4 and rats were then treated with sodium selenite (5 μmol/kg body weight/day) for 4 weeks (G4). On day 28 after an overnight fasting, rats were killed and concentrations of serum glucose, total cholesterol, triglycerides, total lipid, urea, creatinine, uric acid, albumin and some enzymes activities: pancreatic lipase, glutamic oxalic transaminase (GOT), glutamic pyruvic transaminase (GPT), Alkaline phosphatase(ALP) were also estimated. The administration of alloxan significantly increased serum glucose, total cholesterol, triglycerides, total lipid, urea, uric acid levels, pancreatic lipase, GOT, GPT and ALP activities, body weight gain and albumin level were significantly decreased. This alteration was restored back to near normal in diabetic rats intraperitoneal treated with sodium selenite in comparison to non treated diabetic animals. Serum creatinine concentration was normal in all groups. The study concludes that alloxan diabetes mellitus induced severe biochemical alliterations in the glucose, lipid profile concentrations, liver and kidney function markers and sodium selenite has shown protective effects preventing at least partially diabetic complications.


2020 ◽  
Vol 10 ◽  
Author(s):  
Kalyani Pathak ◽  
Aparoop Das ◽  
Anshul Shakya ◽  
Riya Saikia ◽  
Himangshu Sarma

Background: The leaves of Annona reticulata Linn. have been traditionally used by the tribes of Assam as a source of medicine to mitigate a range of health ailments including diabetes and obesity. Objectives: The current study aimed to evaluate the anti-diabetic and anti-hyperlipidemic potential of bioactive fractions isolated from the methanolic extract of Annona reticulata Linn. leaves using Nicotinamide + Streptozotocin (60 mg/kg, i.p.) induced diabetic rats. Methods: The partially purified bioactive fractions, namely F1, F2, F3 and F4 were administered to diabetic rats with the dose of 200 mg/kg, per oral (p.o.) and the effect of the fractions on serum glucose were studied up to 21 days. The potent fractions were further subjected for spectral analysis for identification of the isolated active compounds. Results: The in-vivo anti-diabetic activity of the isolated fractions F2 and F3 were found significant controlling blood glucose level, alike glibenclamide. Interestingly, F2 and F3 treated animals were found significant in restoring the lipid and liver enzymes profile in streptozotocin challenge rats. Further, spectral analysis revealed that F2 and F3 were comprises Quercetin and Gallic acid, respectively. Conclusion: Outcome of finding demonstrate the anti-diabetic and anti-hyperlipidemic potential of the isolates/fractions of A. reticulata, which were found enriched in polyphenolics including Quercetin and Gallic acid; and provides logistic behind the traditional use of the A. reticulata against Diabetes and obesity.


Diseases ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 46
Author(s):  
Feng Xu ◽  
Yawei Wen ◽  
Xinge Hu ◽  
Tiannan Wang ◽  
Guoxun Chen

The newly found SARS-CoV-2 has led to the pandemic of COVID-19, which has caused respiratory distress syndrome and even death worldwide. This has become a global public health crisis. Unfortunately, elders and subjects with comorbidities have high mortality rates. One main feature of COVID-19 is the cytokine storm, which can cause damage in cells and tissues including the kidneys. Here, we reviewed the current literature on renal impairments in patients with COVID-19 and analyzed the possible etiology and mechanisms. In addition, we investigated the potential use of vitamin C for the prevention of renal injury in those patients. It appears that vitamin C could be helpful to improve the outcomes of patients with COVID-19. Lastly, we discussed the possible protective effects of vitamin C on renal functions in COVID-19 patients with existing kidney conditions.


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