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https://www.readbyqxmd.com/read/28922713/peppermint-essential-oil-alleviates-hyperglycemia-caused-by-streptozotocin-nicotinamide-induced-type-2-diabetes-in-rats
#1
Suhair A Abdellatief, Rasha R Beheiry, Shefaa A M El-Mandrawy
The prevalence of diabetes mellitus is steadily growing throughout the world. Traditional medicine has an excellent potential in the treatment of diabetes mellitus. The present study was undertaken to evaluate the potential antidiabetic effect of peppermint essential oil (PEO) on streptozotocin (STZ) and nicotinamide induced diabetic rats. Diabetes was induced in rats fasting overnight by the intraperitoneal administration of nicotinamide followed by a single dose of STZ. After 72h, two groups of diabetic rats were treated with different doses of PEO (40 and 80mg/kg BW) respectively and one group was treated with the standard hypoglycemic agent glibenclamide...
September 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28920462/involvement-of-atrial-natriuretic-peptide-in-abrogated-cardioprotective-effect-of-ischemic-preconditioning-in-ovariectomized-rat-heart
#2
V K Vishwakarma, A Goyal, J K Gupta, P K Upadhyay, H N Yadav
BACKGROUND: Nitric oxide (NO) is an effective mediator of ischemic preconditioning (IPC)-induced cardioprotection. Atrial natriuretic peptide (ANP) is downregulated after ovariectomy, which results in reduction in the level of NO. The present study deals with the investigation of the role of ANP in abrogated cardioprotective effect of IPC in the ovariectomized rat heart. METHODS: Heart was isolated from ovariectomized rat and mounted on Langendorff's apparatus, subjected to 30 min of ischemia and 120 min of reperfusion...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28918294/potassium-channels-modulate-the-action-but-not-the-synthesis-of-hydrogen-sulfide-in-rat-corpus-cavernosum
#3
H Abd Elmoneim, F Sharabi, M Mohy El Din, L Louedec, X Norel, A Senbel
AIM: Hydrogen sulfide (H2S) is a newly-introduced gasotransmitter in penile tissues. However, its exact mechanism of action in mediating penile erection is not fully elucidated. The major aim of this study was to examine the role of different K(+) channels in mediating the responses to H2S in the corpus cavernosum. MAIN METHODS: Tension studies using isolated rat corpus cavernosum strips were conducted. Endogenous H2S production was measured using polarographic technique...
September 13, 2017: Life Sciences
https://www.readbyqxmd.com/read/28917550/antidiabetic-potential-of-methanolic-and-flavonoid-rich-leaf-extracts-of-synsepalum-dulcificum-in-type-2-diabetic-rats
#4
Olabisi T Obafemi, Clement A Akinmoladun, Tolulope M Olaleye, Stephen O Agboade, Amos A Onasanya
BACKGROUND: Synsepalum dulcificum is a plant indigenous to West Africa. The fruit is used to modify taste of foods to sweetness. OBJECTIVES: This study aims to investigate the antidiabetic potentials of both methanolic and flavonoid-rich leaf extracts of S. dulcificum (MSD and FSD respectively) in type 2 diabetic Wistar albino rats. MATERIALS AND METHODS: Sixty three rats were randomly distributed into nine groups of seven animals each with group 1 serving as the normal control...
September 13, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/28917544/effects-on-the-incidence-of-cardiovascular-events-of-the-addition-of-pioglitazone-versus-sulfonylureas-in-patients-with-type-2-diabetes-inadequately-controlled-with-metformin-tosca-it-a-randomised-multicentre-trial
#5
Olga Vaccaro, Maria Masulli, Antonio Nicolucci, Enzo Bonora, Stefano Del Prato, Aldo P Maggioni, Angela A Rivellese, Sebastiano Squatrito, Carlo B Giorda, Giorgio Sesti, Paolo Mocarelli, Giuseppe Lucisano, Michele Sacco, Stefano Signorini, Fabrizio Cappellini, Gabriele Perriello, Anna Carla Babini, Annunziata Lapolla, Giovanna Gregori, Carla Giordano, Laura Corsi, Raffaella Buzzetti, Gennaro Clemente, Graziano Di Cianni, Rossella Iannarelli, Renzo Cordera, Olga La Macchia, Chiara Zamboni, Cristiana Scaranna, Massimo Boemi, Ciro Iovine, Davide Lauro, Sergio Leotta, Elisabetta Dall'Aglio, Emanuela Cannarsa, Laura Tonutti, Giuseppe Pugliese, Antonio C Bossi, Roberto Anichini, Francesco Dotta, Antonino Di Benedetto, Giuseppe Citro, Daniela Antenucci, Lucia Ricci, Francesco Giorgino, Costanza Santini, Agostino Gnasso, Salvatore De Cosmo, Donatella Zavaroni, Monica Vedovato, Agostino Consoli, Maria Calabrese, Paolo di Bartolo, Paolo Fornengo, Gabriele Riccardi
BACKGROUND: The best treatment option for patients with type 2 diabetes in whom treatment with metformin alone fails to achieve adequate glycaemic control is debated. We aimed to compare the long-term effects of pioglitazone versus sulfonylureas, given in addition to metformin, on cardiovascular events in patients with type 2 diabetes. METHODS: TOSCA.IT was a multicentre, randomised, pragmatic clinical trial, in which patients aged 50-75 years with type 2 diabetes inadequately controlled with metformin monotherapy (2-3 g per day) were recruited from 57 diabetes clinics in Italy...
September 12, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28903088/on-line-two-dimensional-liquid-chromatography-based-on-skeleton-type-molecularly-imprinted-column-for-selective-determination-of-sulfonylurea-additive-in-chinese-patent-medicines-or-functional-foods
#6
Pengqi Guo, Xinya Xu, Guoning Chen, Kamran Bashir, Hua Shu, Yanhui Ge, Wanghui Jing, Zhimin Luo, Chun Chang, Qiang Fu
Substandard and counterfeit anti-diabetic medicines directly influence the health and impose a great danger to individual patients and to public health. Counterfeiting has become a serious and underreported problem in the pharmaceutical industry. There are a large number of counterfeit medicines flooded in anti-diabetic markets which effect human health directly and indirectly. Therefore, some novel analytical techniques are necessary to be established for detecting these counterfeit drugs. In this study, a novel skeleton type molecularly imprinted column was successfully prepared...
September 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28898909/anti-hyperglycaemic-effect-of-cleome-rutidosperma-in-alloxan-induced-diabetic-albino-rats
#7
Olayinka A Oridupa, Naomi O Ovwighose, Adebowale B Saba
The hypoglycaemic and antihyperglycaemic effects of methanol extract of leaves of Cleome rutidosperma (Cr) DC (Family: Capparidaceae) was investigated in Wistar rats. Fifty normoglycaemic male rats (120 g-200 g) were divided into groups A (hypoglycaemic study; n=20) and B (antihyperglycaemic study; n=30). Each experiment had one control group and three groups administered with Cr (100, 200 or 400 mg/kg) respectively. Group B had two additional groups of diabetic-untreated rats and glibenclamide-treated diabetic rats...
September 12, 2017: Drug Research
https://www.readbyqxmd.com/read/28877214/direct-versus-indirect-actions-of-ghrelin-on-hypothalamic-npy-neurons
#8
Hiroshi Hashiguchi, Zhenyu Sheng, Vanessa Routh, Volodymyr Gerzanich, J Marc Simard, Joseph Bryan
OBJECTIVES: Assess direct versus indirect action(s) of ghrelin on hypothalamic NPY neurons. MATERIALS AND METHODS: Electrophysiology was used to measure ion channel activity in NPY-GFP neurons in slice preparations. Ca2+ imaging was used to monitor ghrelin activation of isolated NPY GFP-labeled neurons. Immunohistochemistry was used to localize Trpm4, SUR1 and Kir6.2 in the hypothalamus. RESULTS: Acylated ghrelin depolarized the membrane potential (MP) of NPY-GFP neurons in brain slices...
2017: PloS One
https://www.readbyqxmd.com/read/28876976/trpm4-activation-by-chemically-and-oxygen-deprivation-induced-ischemia-and-reperfusion-triggers-neuronal-death
#9
Elías Leiva-Salcedo, Denise Riquelme, Oscar Cerda, Andrés Stutzin
Cerebral ischemia-reperfusion injury triggers a deleterious process ending in neuronal death. This process has two components, a glutamate-dependent and a glutamate-independent mechanism. In the glutamate-independent mechanism, neurons undergo a slow depolarization eventually leading to neuronal death. However, little is known about the molecules that take part in this process. Here we show by using mice cortical neurons in culture and ischemia-reperfusion protocols that TRPM4 is fundamental for the glutamate-independent neuronal damage...
September 6, 2017: Channels
https://www.readbyqxmd.com/read/28870124/reactive-oxygen-species-trigger-nf-%C3%AE%C2%BAb-mediated-nlrp3-inflammasome-activation-induced-by-zinc-oxide-nanoparticles-in-a549-cells
#10
Xiao Liang, Di Zhang, Wenjia Liu, Yingjie Yan, Fang Zhou, Weidong Wu, Zhen Yan
Inhaled zinc oxide nanoparticles (ZnO-NPs) induce lung inflammation associated with oxidative stress. The NLRP3 inflammasome plays a pivotal role in the development of lung inflammation. However, the underlying effects of the NLRP3 inflammasome on ZnO-NPs-induced inflammation remain obscure. In the present study, reactive oxygen species (ROS) generation, expression of NLRP3, caspase-1 p10, and cytokines release of interleukin (IL)-1β and IL-18 were determined after A549 cells were exposed to ZnO-NPs. The ROS scavenger N-acetyl-L-cysteine (NAC), nuclear factor kappa B (NF-κB inhibitor BAY11-7082, and NLRP3 inhibitor glibenclamide (GEL) were used to explore the mechanism of NLRP3 inflammasome activation-induced by ZnO-NPs...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/28867740/investigation-on-the-interactions-between-various-drugs-and-aojiru-green-juice-using-a-simple-centrifugation-method
#11
Kazunari Iwao, Rushiana Tokie Kawai, Masako Oda, Hiroshi Saitoh
The objective of this study was to evaluate the interactions between various drugs and aojiru (green juice), a popular health food in Japan, using a simple centrifugation method. The mixture of drug solution and aojiru suspension was gently shaken and centrifuged. The drug concentration in the supernatant fluid was then determined by HPLC. The concentration of rhodamine 123 (Rho-123), a model compound, in the supernatant fluid significantly decreased after mixing with aojiru, indicating extensive binding of Rho-123 to the insoluble components of aojiru...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28865458/salutary-effects-of-glibenclamide-during-the-chronic-phase-of-murine-experimental-autoimmune-encephalomyelitis
#12
Volodymyr Gerzanich, Tapas K Makar, Poornachander Reddy Guda, Min Seong Kwon, Jesse A Stokum, Seung Kyoon Woo, Svetlana Ivanova, Alexander Ivanov, Rupal I Mehta, Alexandra Brooke Morris, Joseph Bryan, Christopher T Bever, J Marc Simard
BACKGROUND: In multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE), inflammation is perpetuated by both infiltrating leukocytes and astrocytes. Recent work implicated SUR1-TRPM4 channels, expressed mostly by astrocytes, in murine EAE. We tested the hypothesis that pharmacological inhibition of SUR1 during the chronic phase of EAE would be beneficial. METHODS: EAE was induced in mice using myelin oligodendrocyte glycoprotein (MOG) 35-55. Glibenclamide (10 μg/day) was administered beginning 12 or 24 days later...
September 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28855109/the-vasorelaxant-effect-of-mitiglinide-via-activation-of-voltage-dependent-k-channels-and-serca-pump-in-aortic-smooth-muscle
#13
Hongliang Li, Hye Won Kim, Sung Eun Shin, Mi Seon Seo, Jin Ryeol An, Kwon-Soo Ha, Eun-Taek Han, Seok-Ho Hong, Amy L Firth, Il-Whan Choi, Il Yong Han, Dae-Sung Lee, Mi-Jin Yim, Won Sun Park
AIMS: The vasorelaxant effects of the anti-diabetic drug, mitiglinide in phenylephrine (Phe)-pre-contracted aortic rings were examined. MATERIALS AND METHODS: Arterial tone measurement was performed in aortic smooth muscle cells. KEY FINDINGS: Mitiglinide dose-dependently induced vasorelaxation. Application of the large-conductance Ca(2+)-activated K(+) (BKCa) channel blocker paxilline, inwardly rectifying K(+) (Kir) channel blocker Ba(2+), and ATP-sensitive K(+) (KATP) channel blocker glibenclamide did not affect the vasorelaxant effect of mitiglinide...
August 27, 2017: Life Sciences
https://www.readbyqxmd.com/read/28847125/in-reply-to-the-letter-to-the-editor-regarding-effects-of-oral-glibenclamide-on-brain-contusion-volume-and-functional-outcome-of-patients-with-moderate-and-severe-traumatic-brain-injuries-a-randomized-double-blind-placebo-controlled-clinical-trial
#14
LETTER
https://www.readbyqxmd.com/read/28847124/letter-to-the-editor-regarding-effects-of-oral-glibenclamide-on-brain-contusion-volume-and-functional-outcome-of-patients-with-moderate-and-severe-traumatic-brain-injuries-a-randomized-double-blind-placebo-controlled-clinical-trial
#15
LETTER
https://www.readbyqxmd.com/read/28844215/antinociceptive-and-anti-inflammatory-activities-of-leaf-extracts-from-annona-tomentosa-r-e-fr
#16
Lilian Uchoa Carneiro, Ilna Gomes da Silva, Mirian Eliza Alves de Souza, Wellington da Silva Côrtes, Mário Geraldo de Carvalho, Bruno Guimarães Marinho
OBJECTIVE: Annona tomentosa R.E.Fr is a species not endemic to Brazil that belongs to the phytogeographic areas of the Amazon, Cerrado and Pantanal. Popularly known as "araticum rasteiro" or "araticum de moita", A. tomentosa is edible and tea made from the leaves has been used as an anti-inflammatory by native communities. There is no scientific evidence for these uses of A. tomentosa, especially those related to the control of pain and inflammation. For this reason, in the present study we evaluated the antinociceptive and anti-inflammatory activities of partitions from the methanolic extract of A...
September 2017: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28843148/therapeutic-effects-of-syzygium-mundagam-bark-methanol-extract-on-type-2-diabetic-complications-in-rats
#17
Rahul Chandran, Blassan P George, Heidi Abrahamse, Thangaraj Parimelazhagan
Plants are considered as one of the best sources of diabetic therapy. Being a reliable and sustainable medicinal hub, this study directs the use of Syzygium mundagam in exploring the antidiabetic property. Streptozotocin-Nicotinamide (STZ-NA) induced diabetic rats were treated with Syzygium mundagam bark methanol extract (SMBM). Based on acute toxicity study, the doses of the extract were fixed as 100 and 200mg/kg. Glibenclamide was used as reference drug. The blood glucose level and body weight of the rats were monitored for 28days...
August 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28842488/conserved-functional-consequences-of-disease-associated-mutations-in-the-slide-helix-of-kir6-1-and-kir6-2-subunits-of-the-atp-sensitive-potassium-channel
#18
Paige E Cooper, Conor McClenaghan, Xingyu Chen, Anna Stary-Weinzinger, Colin G Nichols
Cantu syndrome (CS) is a condition characterized by a range of anatomical defects, including cardiomegaly, hyper-flexibility of the joints, hypertrichosis, and craniofacial dysmorphology. CS is associated with multiple missense mutations in the genes encoding the regulatory SUR2 subunits of the ATP-sensitive K+ (KATP) channel, as well as two mutations (V65M and C176S) in the Kir6.1 (KCNJ8) subunit. Previous analysis of leucine and alanine substitutions at the Val-65 equivalent site (Val-64) in Kir6.2 indicated no major effects on channel function...
August 23, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28840616/murraya-paniculata-l-orange-jasmine-potential-nutraceuticals-with-ameliorative-effect-in-alloxan-induced-diabetic-rats
#19
Cicero Diego Almino Menezes, Francisca Adilfa de Oliveira Garcia, Glauce Socorro de Barros Viana, Patricia Gonçalves Pinheiro, Cícero Francisco Bezerra Felipe, Thaís Rodrigues de Albuquerque, Alisson Cordeiro Moreira, Enaide Soares Santos, Maynara Rodrigues Cavalcante, Tatiana Rodrigues Garcia, Thiago Fonseca Silva, Henrique Douglas Melo Coutinho, Irwin Rose Alencar de Menezes
Orange jasmine, Murraya paniculata (Rutaceae), is a plant from India widely used in folk medicine as antinociceptive, antiinflammatory, and antioxidant. Although oral hypoglycemic agents and insulin are the mainstays of treatment of diabetes mellitus (DM), there is a significant demand for new natural products to reduce the development of diabetic complications. Alloxan-induced diabetic rats were treated for 60 days with a hydroalcoholic extract of M. paniculata (MPE), at doses of 100, 200, and 400 mg/kg...
August 25, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28839103/levosimendan-prevents-bronchoconstriction-and-adverse-respiratory-tissue-mechanical-changes-in-rabbits
#20
Barna Babik, Adam Laszlo Balogh, Roberta Sudy, Orsolya Ivankovitsne-Kiss, Gergely H Fodor, Ferenc Petak
Levosimendan has a calcium-sensitizing effect in the myocardium and opens adenosine-triphosphate-sensitive potassium channels (KATP) in vascular smooth muscle. Since airway smooth muscle also expresses KATP, we characterized the protective potential of levosimendan against increased airway and respiratory tissue resistances. Animals were administered levosimendan alone (Group L), levosimendan after pretreatment with a KATP channel blocker (glibenclamide, Group LG), glibenclamide only (Group G), or solvent alone (dextrose, Group C)...
August 24, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
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