keyword
MENU ▼
Read by QxMD icon Read
search

acarbose

keyword
https://www.readbyqxmd.com/read/29044865/quick-identification-of-piperidine-alkaloid-from-roots-of-grewia-nervosa-and-their-glucosidase-inhibitory-activity
#1
Surya N Meena, Mahesh S Majik, Sanjeev C Ghadi, Santosh G Tilve
Grewia nervosa is herbal plant used as traditional medicine for different purposes. Bioassay-guided chemical fractionation of G. nervosa roots resulted in an identification of two known and one new compound, named Microgrewiapine A, Homomicrogrewiapine and N-methyl-microcosamine respectively. Their structures were determined using combination of LC-HRMS, (1) H NMR and IR spectra analyses followed by comparison with those reported in the literature. The problematic separation of these alkaloids on traditional column chromatography (Silica gel, Octadecyl silane (ODS), Sephadex) was resolved by using HPLC method...
October 16, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29043213/sargassum-yezoense-extract-inhibits-carbohydrate-digestive-enzymes-in-vitro-and-alleviates-postprandial-hyperglycemia-in-diabetic-mice
#2
Jae-Eun Park, Ji-Hee Lee, Ji-Sook Han
In this study, we investigated whether Sargassum yezoense extract (SYE) could inhibit α-glucosidase and α-amylase activities, and alleviate postprandial hyperglycemia in streptozotocin (STZ)-induced diabetic mice. Freeze-dried S. yezoense was extracted with 80% ethanol and concentrated for use in this study. The hypoglycemic effect was determined by evaluating the inhibitory activities of SYE against α-glucosidase and α-amylase as well as its ability to decrease postprandial blood glucose levels. The half-maximal inhibitory concentrations of SYE against α-glucosidase and α-amylase were 0...
September 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29038797/anthocyanin-profile-antioxidant-activity-and-enzyme-inhibiting-properties-of-blueberry-and-cranberry-juices-a-comparative-study
#3
Guillermo Cásedas, Francisco Les, María Pilar Gómez-Serranillos, Carine Smith, Víctor López
Cranberry (Vaccinium macrocarpon) and blueberry (Vaccinium myrtillus) juices are commonly consumed as a source of antioxidants. The aim of this study was to compare bioactivities as well as the differences in the polyphenol content and anthocyanin profile of both juices. Polyphenol and anthocyanin contents were quantified using spectrophotometric and chromatographic methods. Bioassays were carried out in terms of antioxidant properties in cell and cell free systems as well as inhibition of physiological enzymes that are targets involved in the prevention of chronic diseases (monoamine oxidase A, tyrosinase, acetylcholinesterase, α-glucosidase and dipeptidyl peptidase-4)...
October 17, 2017: Food & Function
https://www.readbyqxmd.com/read/29038580/a-novel-library-of-arylketones-as-potential-inhibitors-of-%C3%AE-glucosidase-their-design-synthesis-in-vitro-and-in-vivo-studies
#4
Tania Luthra, Rahul Agarwal, Mamidala Estari, Uma Adepally, Subhabrata Sen
α-glucosidase is an essential enzyme located at the brush border of intestines. It is an important therapeutic target for type II diabetes. Herein we have designed a library of novel α-arylketones as inhibitors of α-glucosidase (yeast origin) via scaffold hopping and bioisosteric modification of known inhibitors of α-glucosidase. The design was validated through molecular docking that revealed strong binding interactions of the newly designed compounds against α-glucosidase. A library comprising of 15 compounds was synthesized in a combinatorial fashion, where the advanced amide intermediates were accessed through "shot gun" synthesis...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29037584/fungal-biotransformation-of-diuretic-and-antihypertensive-drug-spironolactone-with-gibberella-fujikuroi-curvularia-lunata-fusarium-lini-and-aspergillus-alliaceus
#5
Amal Al-Aboudi, Belal Muneeb Kana'an, Musa Abu Zarga, Saira Bano, Atia-Tul-Wahab, Kulsoom Javed, M Iqbal Choudhary
Fungal cells were used for the first time to synthesize derivatives of spironolactone (1), a diuretic and antihypertensive drug. Ten different fungi were screened for their ability to biotransform 1, four of which were able to produce metabolites 2-8. Gibberella fujikuroi produced canrenone (2), 1-dehydrocanrenone (3), Curvularia lunuta provided compound 2, and 7α-thio-spironolactone (4), Fusarium lini yielded compounds 2, 3, 1β-hydroxycanrenone (5), 1α-hydroxycanrenone (6), 1-dehydro-15α-hydroxycanrenone (7), and 15α-hydroxycanrenone (8), while Aspergillus alliaceus was able to produce all the seven metabolites...
October 13, 2017: Steroids
https://www.readbyqxmd.com/read/29034198/phenolic-constituents-and-modulatory-effects-of-raffia-palm-leaf-raphia-hookeri-extract-on-carbohydrate-hydrolyzing-enzymes-linked-to-type-2-diabetes
#6
Felix A Dada, Sunday I Oyeleye, Opeyemi B Ogunsuyi, Tosin A Olasehinde, Stephen A Adefegha, Ganiyu Oboh, Aline A Boligon
This study sought to investigate the effects of Raffia palm (Raphia hookeri) leaf extract on enzymes linked to type-2 diabetes mellitus (T2DM) and pro-oxidant induced oxidative stress in rat pancreas. The extract was prepared and its α-amylase and α-glucosidase inhibitory effects were determined. Radical [2,2-diphenyl-1-picrylhydrazyl (DPPH)] scavenging and Fe(2+)-chelating abilities, and inhibition of Fe(2+)-induced lipid peroxidation in rat pancreas homogenate were assessed. Furthermore, total phenol and flavonoid contents, reducing property, and high performance liquid chromatography diode array detector (HPLC-DAD) fingerprint of the extract were also determined...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29027933/dpph-radical-scavenging-and-postprandial-hyperglycemia-inhibition-activities-and-flavonoid-composition-analysis-of-hawk-tea-by-uplc-dad-and-uplc-q-tof-ms-e
#7
Xuan Xiao, Lijia Xu, Huagang Hu, Yinjun Yang, Xinyao Zhang, Yong Peng, Peigen Xiao
Hawk tea (Litsea coreana Lévl. var. Lanuginosa (Migo) Yen C. Yang & P.H. Huang), a very popular herbal tea material, has attracted more and more attention due to its high antioxidant properties and possible therapeutic effect on type II diabetes mellitus. The raw materials of Hawk tea are usually divided into three kinds: bud tea (BT), primary leaf tea (PLT) and mature leaf tea (MLT). In this study, the DPPH radical scavenging activity and the antimicrobial properties of these three kinds of Hawk tea from different regions were comparatively investigated, and a ultra-high performance liquid chromatographic coupled with a photodiode array detector (UPLC-DAD) method was employed for comparison of the three major flavonoid constituents, including hyperoside, isoquercitrin and astragalin, in different samples of Hawk tea...
October 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29021286/pomegranate-juice-but-not-an-extract-confers-a-lower-glycemic-response-on-a-high-glycemic-index-food-randomized-crossover-controlled-trials-in-healthy-subjects
#8
Asimina Kerimi, Hilda Nyambe-Silavwe, Julia S Gauer, Francisco A Tomás-Barberán, Gary Williamson
Background: Low-glycemic index diets have demonstrated health benefits associated with a reduced risk of developing type 2 diabetes.Objectives: We tested whether pomegranate polyphenols could lower the glycemic response of a high-glycemic index food when consumed together and the mechanism by which this might occur.Design: We compared the acute effect of a pomegranate juice and a polyphenol-rich extract from pomegranate (supplement) on the bread-derived postprandial blood glucose concentration in 2 randomized, crossover, controlled studies (double-blinded for the supplements), each on 16 healthy volunteers...
October 11, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29020969/updates-on-cardiovascular-outcome-trials-in-diabetes
#9
REVIEW
Oliver Schnell, Lars Rydén, Eberhard Standl, Antonio Ceriello
In 2008 the Food and Drug Administration introduced a guidance for industry that requires the investigation of cardiovascular outcomes of glucose-lowering medications. Since then, an increasing number of cardiovascular outcome trials have been completed in diabetes patients with high cardiovascular risk for members of the SGLT-2 and DPP4 inhibitors and GLP-1 receptor agonist classes. The trials confirmed cardiovascular safety for all tested anti-hyperglycaemic drugs and, in addition empagliflozin, semaglutide and liraglutide could even reduce cardiovascular risk...
October 11, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28984494/binding-of-acarbose-an-anti-diabetic-drug-to-lysozyme-a-combined-structural-andthermodynamic-study
#10
K V Dileep, K Nithiyanandan, C Remya
No abstract text is available yet for this article.
October 6, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28979777/changes-in-treatment-of-hyperglycemia-in-a-hypertensive-type-2-diabetes-population-as-renal-function-declines
#11
Larry A Weinrauch, Alissa R Segal, George P Bayliss, Jiankang Liu, Eric Wisniewski, John A D'Elia
BACKGROUND: Cardiovascular complications associated with expensive noninsulin agents for type 2 diabetes are the focus of concern in light of the risk of kidney dysfunction with aging. Head-to-head comparisons are unavailable to guide the choice of new drugs for hyperglycemia in patients with type 2 diabetes, decreased estimated glomerular filtration rate (eGFR) and increased cardiovascular risk. A first approach would be to document current medication choices. METHODS: All prescriptions for 10 151 patients (5623 males/4528 females) with both type 2 diabetes and hypertension seen two or  more times during a 5-year period (2007-12) at Joslin Diabetes Center were evaluated...
October 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28974803/antidiabetic-and-antioxidant-functionality-associated-with-phenolic-constituents-from-fruit-parts-of-indigenous-black-jamun-syzygium-cumini-l-landraces
#12
H P Gajera, Shila N Gevariya, Darshna G Hirpara, S V Patel, B A Golakiya
ABSTRACT: Fruit phenolics are important dietary antioxidant and antidiabetic constituents. The fruit parts (pulp, seed, seed coat, kernel) of underutilized indigenous six black jamun landraces (Syzygium cumini L.), found in Gir forest region of India and differed in their fruit size, shape and weight, are evaluated and correlated with antidiabetic, DPPH radical scavenging and phenolic constituents. The α-amylase inhibitors propose an efficient antidiabetic strategy and the levels of postprandial hyperglycemia were lowered by restraining starch breakdown...
September 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28964635/pentacyclic-triterpenes-as-%C3%AE-glucosidase-and-%C3%AE-amylase-inhibitors-structure-activity-relationships-and-the-synergism-with-acarbose
#13
Bo-Wei Zhang, Yan Xing, Chen Wen, Xiao-Xia Yu, Wen-Long Sun, Zhi-Long Xiu, Yue-Sheng Dong
In this paper, the inhibition of α-amylase and α-glucosidase by nine pentacyclic triterpenes was determined. For α-amylase inhibitory activity, the IC50 values of ursolic acid, corosolic acid, and oleanolic acid were 22.6±2.4μM, 31.2±3.4μM, and 94.1±6.7μM, respectively. For α-glucosidase inhibition, the IC50 values of ursolic acid, corosolic acid, betulinic acid, and oleanolic acid were 12.1±1.0μM, 17.2±0.9μM, 14.9±1.9μM, and 35.6±2.6μM, respectively. The combination of corosolic acid and oleanolic acid with acarbose showed synergistic inhibition against α-amylase...
September 14, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28933564/%C3%AE-glucosidase-inhibition-by-flavonoids-an-in-vitro-and-in-silico-structure-activity-relationship-study
#14
Carina Proença, Marisa Freitas, Daniela Ribeiro, Eduardo F T Oliveira, Joana L C Sousa, Sara M Tomé, Maria J Ramos, Artur M S Silva, Pedro A Fernandes, Eduarda Fernandes
α-Glucosidase inhibitors are described as the most effective in reducing post-prandial hyperglycaemia (PPHG) from all available anti-diabetic drugs used in the management of type 2 diabetes mellitus. As flavonoids are promising modulators of this enzyme's activity, a panel of 44 flavonoids, organised in five groups, was screened for their inhibitory activity of α-glucosidase, based on in vitro structure-activity relationship studies. Inhibitory kinetic analysis and molecular docking calculations were also applied for selected compounds...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28930827/comparative-efficacy-and-safety-of-oral-antidiabetic-drugs-and-insulin-in-treating-gestational-diabetes-mellitus-an-updated-prisma-compliant-network-meta-analysis
#15
Hui-Ling Liang, Shu-Juan Ma, Yan-Ni Xiao, Hong-Zhuan Tan
BACKGROUND: The safety and efficacy of different drugs in treatment of gestational diabetes mellitus (GDM) patients who could not maintain normal glucose level only through diet and exercise remains to be debated. We performed this network meta-analysis (NAM) to compare and rank different antidiabetic drugs in glucose level control and pregnancy outcomes in GDM patients. METHODS: We searched PubMed, Cochrane Library, Web of Science, and Embase up to December 31, 2016...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28927592/preliminary-structural-characterization-and-hypoglycemic-effects-of-an-acidic-polysaccharide-serp1-from-the-residue-of-sarcandra-glabra
#16
Wei Liu, Weisheng Lu, Yin Chai, Yameng Liu, Wenbing Yao, Xiangdong Gao
An acidic polysaccharide (SERP1) was isolated from the residue of Sarcandra glabra (Thunb.) Nakai by water extraction and purified by decoloration and ion exchange chromatography. The structure of SERP1 was determined by HPLC, HPSEC-MALLS, FT-IR, and NMR. The results indicated that SERP1 was a homogeneous heteropolysaccharide with the absolute molecular weight of 4.208×10(4)Da in the aqueous phase. 1,4-linked α-d-galacturonic acid, methyl esterified 1,4-linked α-d-galacturonic acid, 1,4-linked α-d-glucuronic acid, 1,5-linked α-l-arabinose, 1,3-linked β-d-galactose 1,4-linked α-d-glucose, 1,4,6-linked β-d-glucose, 1,6-linked β-d-glucose, and 1,2-linked rhamnose existed in SERP1...
November 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28926784/synthesis-of-thiobarbituric-acid-derivatives-in-vitro-%C3%AE-glucosidase-inhibition-and-molecular-docking-studies
#17
Assem Barakat, M Ali, Abdullah Mohammed Al-Majid, Sammer Yousuf, M Iqbal Choudhary, Ruqaiya Khalil, Zaheer Ul-Haq
Synthesis, structure, and evaluation of in vitro α-glucosidase enzyme inhibition of a new class of diethylammonium salts of aryl substituted thiobarbituric acid is described. This protocol is straight, environmentally benign and efficient, involving Aldol-Michael addition reaction in one pot fashion. The 3D chemical structures of the synthesized compounds were assigned based on spectroscopic methods and X-ray single crystal diffraction analyses. All synthesized compounds 3a-3n were evaluated for their in vitro α-glucosidase enzyme inhibitory activity, whereas acarbose was used as the standard drug (IC50=840±1...
September 12, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28918064/synthesis-and-in-vitro-study-of-benzofuran-hydrazone-derivatives-as-novel-alpha-amylase-inhibitor
#18
Muhammad Taha, Syed Adnan Ali Shah, Syahrul Imran, Muhammad Afifi, Sridevi Chigurupati, Manikandan Selvaraj, Fazal Rahim, Hayat Ullah, Khalid Zaman, Shantini Vijayabalan
The α-amylase acts as attractive target to treat type-2 diabetes mellitus. Therefore in discovering a small molecule as α-amylase inhibitor, we have synthesized benzofuran carbohydrazide analogs (1-25), characterized through different spectroscopic techniques such as (1)HNMR and EI-MS. All screened analog shows good α-amylase inhibitory potentials with IC50 value ranging between 1.078±0.19 and 2.926±0.05µM when compared with acarbose having IC50=0.62±0.22µM. Only nine analogs among the series such as analogs 3, 5, 7, 8, 10, 12, 21, 23 and 24 exhibit good inhibitory potential with IC50 values 1...
September 7, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28917933/the-complete-genome-sequence-of-the-actinobacterium-streptomyces-glaucescens-gla-o-dsm-40922-carrying-gene-clusters-for-the-biosynthesis-of-tetracenomycin-c-5-hydroxy-streptomycin-and-acarbose
#19
Vera Ortseifen, Jörn Kalinowski, Alfred Pühler, Christian Rückert
The secondary metabolite acarbose is used worldwide in the clinical treatment of diabetes mellitus type 2 patients. Acarbose is a - glucosidase inhibitor and supports patients to control their blood glucose as well as their serum insulin levels. The secondary metabolite is produced by strains of the class Actinobacteria, in particular from Actinoplanes sp. SE50/110, which is a progenitor of today`s production strains. Moreover, secondary metabolite clusters could also be identified in Streptomyces coelicoflavus ZG0656 as well as Streptomyces glaucescens GLA...
November 20, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28917545/effects-of-acarbose-on-cardiovascular-and-diabetes-outcomes-in-patients-with-coronary-heart-disease-and-impaired-glucose-tolerance-ace-a-randomised-double-blind-placebo-controlled-trial
#20
Rury R Holman, Ruth L Coleman, Juliana C N Chan, Jean-Louis Chiasson, Huimei Feng, Junbo Ge, Hertzel C Gerstein, Richard Gray, Yong Huo, Zhihui Lang, John J McMurray, Lars Rydén, Stefan Schröder, Yihong Sun, Michael J Theodorakis, Michal Tendera, Lynne Tucker, Jaakko Tuomilehto, Yidong Wei, Wenying Yang, Duolao Wang, Dayi Hu, Changyu Pan
BACKGROUND: The effect of the α-glucosidase inhibitor acarbose on cardiovascular outcomes in patients with coronary heart disease and impaired glucose tolerance is unknown. We aimed to assess whether acarbose could reduce the frequency of cardiovascular events in Chinese patients with established coronary heart disease and impaired glucose tolerance, and whether the incidence of type 2 diabetes could be reduced. METHODS: The Acarbose Cardiovascular Evaluation (ACE) trial was a randomised, double-blind, placebo-controlled, phase 4 trial, with patients recruited from 176 hospital outpatient clinics in China...
September 12, 2017: Lancet Diabetes & Endocrinology
keyword
keyword
28718
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"