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| Collares,E.F.; Vinagre,A.M.; Collares-Buzato,C.B.. |
| Atropine (AT) and dipyrone (Dp) induce a delay of gastric emptying (GE) of liquids in rats by inhibiting muscarinic receptors and activating β2-adrenergic receptors, respectively. The objective of the present study was to determine the effects of pretreatment with AT and Dp, given alone or in combination, on the effect of hypoglycemia in the liquid GE in rats. Male Wistar adult rats (280-310 g) were pretreated intravenously with AT, Dp, AT plus Dp or their vehicle and then treated 30 min later with iv insulin or its vehicle (n=8-10 animals/group). Thirty min after treatment, GE was evaluated by determining, in awake rats, the percent gastric retention (%GR) of a saline meal labeled with phenol red administered by gavage. The results indicated that insulin... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hypoglycemia; Gastric emptying; Dipyrone; Atropine; Muscarinic receptors; Adrenergic receptors. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001000610 |
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| Guzmán,Eduardo Lozano; González,José Cruz Calderón; Flores,Maribel Cervantes; Carrillo,Ada Sandoval; Pescador,María Guadalupe Nieto; Cruz,Francisco Javier Moreno. |
| Cnidoscolus chayamansa is a native plant of the Mayan region, which is also cultivated in other places like northern Mexico, Tunisia and India. Many properties are attributed to Mayan Chaya, such as aid in the control of glycemia in diabetics. Thus this study aimed to evaluate the hypoglycemic effects of chaya aqueous extracts in a model of streptozotisin-induced diabetic Wistar rats. Chaya aqueous extracts were collected from plants cultivated in Quinta Roo (Mayan region) and Durango (northern Mexico), and in this study we compare their effect with metformin (as a control). Additionally, we compared the extracts mass profiles from both regions by high-resolution liquid chromatography coupled to a triple quadrupole tandem mass detector (HPLC-MS/MS QQQ).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diabetes; Chaya; Langerhans islets; Hypoglycemia; HPLC. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100619 |
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| Galende,Sharize Betoni; Oliveira Neto,Oswaldo Custódio de; Santos,Leandro Freire dos; Peicher,Márcia Vardanega; Souza,Helenir Medri de; Bazotte,Roberto Barbosa. |
| The activation of hepatic gluconeogenesis in male Wistar adult 6 h fasted rats during insulin-induced hypoglycemia (IIH) was previously demonstrated. In this study, the effects of intraperitoneal (ip) glucose (100 mg/kg) on the activation of liver gluconeogenesis during IIH was investigated. Thus, 6 h fasted rats that received ip regular insulin (1 U/kg) and 30 min later ip saline (Control group) or glucose (Experimental group) were compared. All the experiments were executed 60 min after insulin injection. The glycemia of Control and Experimental groups were not different (P > 0.05). To investigate gluconeogenesis, liver perfusion experiments were performed. The results demonstrated that excepting glycerol, livers from rats which received ip glucose... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hypoglycemia; Glycemia recovery; Hepatic metabolism; Gluconeogenesis; Ureagenesis. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400008 |
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| LUYEN,NGUYEN THI; DANG,NGUYEN HAI; BINH,PHUNG THI XUAN; HAI,NGUYEN THI; DAT,NGUYEN TIEN. |
| Abstract This paper evaluated the inhibitory effect of 3-O-[β-d-glucopyranosyl-(1→4)-β-d-glucuronopyranosyl] oleanolic acid 28-O-β-d-glucopyranosyl ester (PFS), a major saponin isolated from Polyscias fruticosa leaves, on α-amylase and α-glucosidase, and its potential for reducing the postprandial blood glucose level in mice. In enzyme inhibition assays, PFS strongly inhibited porcine pancreas α-amylase and yeast α-glucosidase. Using the Lineweaver–Burk equation, we found that PFS inhibited porcine pancreas α-amylase in a mixed noncompetitive mode, and yeast α-glucosidase via noncompetitive inhibition. In the sucrose tolerance test, PFS at 100 mg/kg body weight significantly decreased the postprandial blood glucose level in mice fed a high-sucrose diet.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polyscias fruticosa; Araliaceae; Α-amylase; Α-glucosidase; Hypoglycemia. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602881 |
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| Melo,Fernando Cesar Bazani Cabral de; Zaia,Cássia Thaïs Bussamra Viera; Celligoi,Maria Antonia Pedrine Colabone. |
| Levan is an exopolysaccharide of fructose primarily linked by β-(2→6) glycosidic bonds with some β-(2→1) branched chains. Due to its chemical properties, levan has possible applications in both the food and pharmaceutical industries. Bacillus subtilis is a promising industrial levan producer, as it ferments sucrose and has a high levan-formation capacity. A new strain of B. subtilis was recently isolated from Japanese food natto, and it has produced levan in large quantities. For future pharmaceutical applications, this study aimed to investigate the effects of levan produced by B. subtilis Natto, mainly as potential hypoglycemic agent, (previously optimized with a molecular weight equal to 72.37 and 4,146 kDa) in Wistar male rats with diabetes induced by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Levan; Bacillus subtilis Natto; Hypoglycemia. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400046 |
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