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Burak DiK, Emre Bahcivan, Hatice Eser Faki, Kamil Uney
In the present study, combined treatment with etanercept and anakinra were tested in the streptozotocin-induced diabetic rats. Forty male Wistar albino rats were divided into 5 groups; healthy control (HC), diabetic control (DC), diabetic+anakinra (DAT), diabetic+etanercept (DET), and diabetic+etanercept+anakinra (DEAT). HC and DC groups received subcutaneous (sc.) injection with a saline solution, while DAT and DET groups received anakinra (10 mg/kg/day, sc.) or etanercept (10 mg/kg, twice a week, sc.), and DEAT rats received both anakinra and etanercept treatments for 21 days after diabetes has developed...
March 20, 2018: Canadian Journal of Physiology and Pharmacology
Christina Pedersen, Trine Porsgaard, Maria Thomsen, Mette Marie Rosenkilde, Nikolaj Kulahin Roed
Insulin is a vital part of diabetes treatment, whereas glucagon is primarily used to treat insulin-induced hypoglycemia. However, glucagon is suggested to have a central role in the regulation of body weight, which would be beneficial for diabetic patients. Since the glucagon effect on blood glucose is known to be transient, it is relevant to investigate the pharmacodynamics of glucagon after repeated dosing. In the present study, we used telemetry to continuously measure blood glucose in streptozotocin induced diabetic Sprague-Dawley rats...
2018: PloS One
YanLi Xu, Yongxia Zhao, YaNan Sui, XiaoJun Lei
The present study was aimed to investigate the protective effect of Pterocarpus marsupium bark extracts against cataract in streptozotocin-induced diabetic male albino rats. Aldose reductase is a key enzyme in the intracellular polyol pathway, which plays a major role in the development of diabetic cataract. Rats were divided into five groups as normal control, diabetic control, and diabetic control treated with different concentrations of Pterocarpus marsupium bark extracts. Presence of major constituents in Pterocarpus marsupium bark extract was performed by qualitative analysis...
April 2018: 3 Biotech
Chun-Yuan Chen, Shan-Shan Rao, Lu Ren, Xiong-Ke Hu, Yi-Juan Tan, Yin Hu, Juan Luo, Yi-Wei Liu, Hao Yin, Jie Huang, Jia Cao, Zhen-Xing Wang, Zheng-Zhao Liu, Hao-Ming Liu, Si-Yuan Tang, Ran Xu, Hui Xie
Chronic non-healing wounds represent one of the most common complications of diabetes and need advanced treatment strategies. Exosomes are key mediators of cell paracrine action and can be directly utilized as therapeutic agents for tissue repair and regeneration. Here, we explored the effects of exosomes from human urine-derived stem cells (USC-Exos) on diabetic wound healing and the underlying mechanism. Methods: USCs were characterized by flow cytometry and multipotent differentiation potential analyses...
2018: Theranostics
Wang Chengji, Fan Xianjin
OBJECTIVE: To investigate the biological mechanism of the effect of different intensity exercises on diabetic cardiomyopathy. METHODS: 87 male SPF 6-wks old male S-D rats, after 6 weeks high fat diet, diabetic model was established, randomly selected 43 divided into diabetic control group (DCG, n=10), low intensity group (LIG, n=11), moderate intensity group (MIG, n=11), and high-intensity group (HIG, n=11).The rats in LIG were forced to run on a motorized treadmill, the exercise load consisted of running at a speed of 10 meters/min, MIG were running 15 meters/min, HIG were running 20 meters/min, one hour a day for 6 weeks...
March 19, 2018: Endocrine Connections
Qi Wang, Zhuang-Li Guo, Ge-Le Aori, Da-Wei Kong, Wen-Qiang Yang, Li Zhang, Yan-Bing Yu
Danhong injection (DHI) has been widely used in China for cardiocerebrovascular diseases treatments. And in this study, we demonstrated the therapeutic effect of DHI on experimental diabetic neuropathy for the first time. Methods . Streptozotocin- (STZ-) induced SD rats were used. In experiment 1, 4-week treatment with DHI or saline started 4 weeks after STZ injection; mechanical allodynia was measured before and every 2 weeks after STZ injection. In experiment 2, chronic intrathecal infusion of U0126 was conducted during the 8th week of diabetes...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
Anna Mazanova, Ihor Shymanskyi, Olha Lisakovska, Lala Hajiyeva, Yulia Komisarenko, Mykola Veliky
Objectives: Recent prospective studies have found the associations between type 1 diabetes (T1D) and vitamin D deficiency. We investigated the role of vitamin D in the regulation of 25OHD-1 α -hydroxylase (CYP27B1) and VDR expression in different tissues of T1D rats. Design: T1D was induced in male Wistar rats by streptozotocin (55 mg/k b.w.). After 2 weeks of T1D, the animals were treated orally with or without vitamin D3 (cholecalciferol; 100 IU/rat, 30 days)...
2018: International Journal of Endocrinology
Sonia Torres-Sanchez, Gisela Borges, Juan A Mico, Esther Berrocoso
Tapentadol is an analgesic that acts as an agonist of mu-opioid receptors (MOR) and that inhibits noradrenaline reuptake. Data from healthy rats show that tapentadol inhibits neuronal activity in the locus coeruleus (LC), a nucleus regulated by both the noradrenergic and opioid systems. Thus, we set out to investigate the effect of tapentadol on LC activity in streptozotocin (STZ)-induced diabetic rats, a model of diabetic polyneuropathy, by analyzing single-unit extracellular recordings of LC neurons. Four weeks after inducing diabetes, tapentadol dose-response curves were obtained from animals pre-treated with RX821002 or naloxone (alpha2-adrenoceptors and opioid receptors antagonists, respectively)...
March 15, 2018: Neuropharmacology
Jhohann Richard de Lima Benzi, Priscila Akemi Yamamoto, Jessica Hanna Stevens, Amanda Martins Baviera, Natália Valadares de Moraes
PURPOSE: We investigated the influence of diabetes mellitus (DM), glycemic control with insulin, cimetidine (Oct2 inhibitor) and metformin (Oct2 substrate) on the kinetic disposition of GAB in rats. MAIN METHODS: Male Wistar rats were divided in five groups and all animals received an oral dose of 50 mg/kg GAB: (vehicle + GAB), cimetidine + GAB (single dose of cimetidine [100 mg/kg] intraperitoneally 1 h before GAB), metformin + GAB (single dose of metformin 100 mg/kg by gavage concomitantly with GAB), DM + GAB (single dose of 40 mg/kg streptozotocin (STZ) intravenously) and DM + GAB + insulin (single dose 40 mg/kg STZ intravenously and 2 IU insulin twice daily for 15 days)...
March 15, 2018: Life Sciences
Mohammed Al Za'abi, Suhail Al Salam, Yousuf Al Suleimani, Priyadarsini Manoj, Abderrahim Nemmar, Badreldin H Ali
BACKGROUND/AIMS: The effect of treatment with gum acacia (GA), a prebiotic shown previously to ameliorate chronic kidney disease (CKD), in diabetic and non - diabetic rats with adenine - induced CKD has been investigated using several conventional and novel physiological, biochemical, and histopathological parameters. METHODS: Diabetes mellitus was induced in rats by a single injection of streptozotocin (STZ). Diabetic and non - diabetic rats were randomly divided into several groups, and given either normal food or food mixed with adenine (0...
March 13, 2018: Cellular Physiology and Biochemistry
I C Chis, A Clichici, A L Nagy, A Oros, C Catoi, S Clichici
Diabetic neuropathy (DN) is a frequent, serious and debilitating chronic complication of diabetes mellitus (DM). Hyperglycemia, oxidative and nitrosative stress are involved in causing nerve damage in several animals, humans and experimental models of diabetes. This study was designed to investigate the synergistic cumulative neuroprotective effect of quercetin administration and moderate exercise training on sciatic nerves injuries in streptozotocin (STZ)-diabetic rats. DM was induced in Wistar rats by intraperitoneal administration of STZ (60 mg/kg)...
December 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Xudong Wang, Wang Xi, Jiwei Qin, Jili Lv, Yuzhou Wang, Tianhao Zhang, Shu Jie Li
Reactive oxygen species (ROS) impairs pancreatic β-cells and plays an important role in development of diabetes. Streptozotocin (STZ) can lead to β-cell dysfunction via inducing ROS production. The voltage-gated proton channel Hv1 contributes a majority of the charge compensation required for ROS production. Here, we investigated the effects of Hv1 on STZ-induced β-cell damage. We found that deficiency of Hv1 obviously inhibits STZ-induced glucose intolerance in mice, and prevents the decrease in β-cell mass and pancreatic insulin content from STZ-treatment...
March 16, 2018: Biochemical and Biophysical Research Communications
Zezhao Li, Zhen Hong, Zhiqing Peng, Yongcai Zhao, Rusheng Shao
Diabetic nephropathy (DN) is the major cause of end-stage renal disease in diabetic patients. Zicao, a well-known Chinese traditional medicine, has attracted much attention due to its beneficial effects in various medical fields. In this study, we attempted to investigate the effects and mechanisms of action of acetylshikonin, the main ingredient of Zicao, on renal dysfunction in DN. Our results showed that administration with acetylshikonin not only decreased blood urea nitrogen, urine creatinine and the mean kidney-to-body weight ratio in streptozotocin-induced diabetic mice, but also restored the loss of body weight, whereas the blood glucose was not changed...
March 17, 2018: Human Cell
Osasenaga Macdonald Ighodaro, Abiola Mohammed Adeosun, Oluseyi Adeboye Akinloye
Glycemic homeostasis refers to glucose balance or control within circulation in living organisms. It is normally and largely compromised in diabetes. The compromise when exacerbated, leads to several complications including retinopathy, nephropathy and neuropathy which are collectively known as diabetic complications and are the principal actors in co-morbidity and eventual mortality often associated with diabetes. The ability of therapeutic compounds including medicinal plants to restore glycemic balance or homeostasis in hyperglycemic condition is an index of their antidiabetic function and relevance...
February 27, 2018: Medicina
Mursel Bicer, Saltuk Bugra Baltaci, Suleyman Patlar, Rasim Mogulkoc, Abdulkerim Kasim Baltaci
Aim The present study aimed to examine the effects of melatonin supplementation on lipid peroxidation in the bone tissue of diabetic rats subjected to acute swimming exercise. Methods The study was conducted on 80 Sprague-Dawley type adult male rats which were equally allocated to eight groups: group 1, general control; group 2, melatonin-supplemented control; group 3, melatonin-supplemented diabetic control; group 4, swimming control; group 5, melatonin-supplemented swimming; group 6, melatonin-supplemented diabetic swimming; group 7, diabetic swimming; group 8, diabetic control...
March 16, 2018: Hormone Molecular Biology and Clinical Investigation
Katherine M Satrom, Kathleen Ennis, Brian M Sweis, Tatyana M Matveeva, Jun Chen, Leif Hanson, Akhil Maheshwari, Raghavendra Rao
BACKGROUND: Hyperglycemia is common in extremely low gestational age newborns (ELGAN) and is associated with increased mortality and morbidity, including abnormal neurodevelopment. Hippocampus-mediated cognitive deficits are common in this population, but the specific effects of hyperglycemia on the developing hippocampus are not known. METHODS: The objective of this study was to determine the acute and long-term effects of hyperglycemia on the developing hippocampus in neonatal rats using a streptozotocin (STZ)-induced model of hyperglycemia...
March 15, 2018: Journal of Neuroinflammation
Ji-Hye Kim, Ae Ri Kim, Yun Hui Choi, Aeryun Kim, Yongsung Sohn, Gye-Hyeong Woo, Jeong-Heon Cha, Eun-Jung Bak, Yun-Jung Yoo
BACKGROUND: Periodontitis is an infectious disease that manifests as alveolar bone loss surrounding the roots of teeth. Diabetes aggravates periodontitis-induced alveolar bone loss via suppression of bone formation. Intermittent parathyroid hormone (PTH) administration displays an anabolic effect on bone. In this study, we investigated the effect of intermittent PTH administration on alveolar bone loss in type 1 diabetic rats with periodontitis. METHODS: Rats were divided into control (C), periodontitis (P), periodontitis treated with PTH (P + PTH), diabetes with periodontitis (DP), and diabetes with periodontitis treated with PTH (DP + PTH) groups...
March 15, 2018: Journal of Translational Medicine
A M Rodrigues, R S Serralha, C Farias, G R Punaro, M J S Fernandes, Elisa Mieko Suemitsu Higa
Diabetes mellitus is characterized by increased levels of reactive oxygen species (ROS), leading to high levels of adenosine triphosphate (ATP) and the activation of purinergic receptors (P2X7 ), which results in cell death. Klotho was recently described as a modulator of oxidative stress and as having anti-apoptotic properties, among others. However, the roles of P2X7 and klotho in the progression of diabetic nephropathy are still unclear. In this context, the aim of the present study was to characterize P2X7 and klotho in several stages of diabetes in rats...
March 14, 2018: Purinergic Signalling
Laura Lopez-Sanz, Susana Bernal, Carlota Recio, Iolanda Lazaro, Ainhoa Oguiza, Ana Melgar, Luna Jimenez-Castilla, Jesus Egido, Carmen Gomez-Guerrero
Oxidative stress resulting from excessive production of reactive oxygen species (ROS) or impaired antioxidant defenses is closely related to the development of diabetic vascular complications, including nephropathy and atherosclerosis. Chronic activation of Janus kinase/Signal transducer and activator of transcription (JAK/STAT) signaling pathway contributes to diabetic complications by inducing expression of genes involved in cell proliferation, fibrosis, inflammation, and oxidative stress. Suppressors of cytokine signaling (SOCS) family of endogenous JAK/STAT regulators is an attractive target for therapeutic intervention...
March 14, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
Bin Zhao, Jun-Jie Xia, Lu-Min Wang, Chang Gao, Jia-Li Li, Jia-Yin Liu, Qi-Jun Cheng, Chen Dai, Qi-Lin Ma, Zhong-Quan Qi, Ben-Hua Zhao
The role of arsenic trioxide (As2 O3 ) in inhibiting immune rejection and prolonging islet allograft survival has been identified in islet allotransplantation. This study aims to explore the role of As2 O3 in islet xenotransplantation and the action mechanism. The streptozotocin (STZ) was used in C57BL/6 mice to induce the type 1 diabetes mellitus (T1DM) for xenotransplantation models establishment. Donor islets were isolated by digesting. The flow cytometry (FCM) was used to analyze lymphocyte types. The blood sugar level was detected by using intraperitoneal glucose tolerance test (IPGTT)...
March 14, 2018: Cell Death & Disease
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