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Drug Research

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https://www.readbyqxmd.com/read/29310144/kolaviron-and-garcinia-kola-seed-extract-protect-against-ischaemia-reperfusion-injury-on-isolated-rat-heart
#1
Ademola Adetokunbo Oyagbemi, Dirk Bester, Johan Esterhuyse, Ebenezer Olatunde Farombi
BACKGROUND: The incidence of cardiovascular diseases and its associated complications have increased greatly in the past three decades. The purpose of this study was to evaluate the acute cardioprotective effects of Garcinia kola (GK) seed extract and Kolaviron (KV) and determine mechanisms of action involving RISK signalling pathways. METHODS: Male Wistar rats were used in this study. Hearts were excised and mounted on the Langendorff perfusion system. The control, group 1 was perfused with dimethyl sulfoxide (DMSO), group II with KV and group III with GK respectively...
January 8, 2018: Drug Research
https://www.readbyqxmd.com/read/29294495/synergistic-effect-of-free-and-nano-encapsulated-chrysin-curcumin-on-inhibition-of-htert-gene-expression-in-sw480-colorectal-cancer-cell-line
#2
Raana Bagheri, Zohreh Sanaat, Nosratollah Zarghami
BACKGROUND: Telomerase is known as a global therapeutic target in cancer cells due to its main role in tumorigenesis. Nowadays, it is proposed new treatment methods based on molecular target therapy by bioactive substances such as curcumin and chrysin with fewer side effects than other chemical drugs. But due to their low aqueous solubility and high clearance in the bloodstream it can be used of nanoparticles to increase their half-life and biocompatibility of them. Therefore, the goal of this study was to evaluate the effect of Chrysin-Curcumin on the expression of telomerase gene in SW480 colorectal cancer cell line...
January 2, 2018: Drug Research
https://www.readbyqxmd.com/read/29258152/the-combination-of-fosfomycin-metronidazole-and-recombinant-human-granulocyte-macrophage-colony-stimulating-factor-is-stable-in-vitro-and-has-maintained-antibacterial-activity
#3
Siv Fonnes, Barbara Juliane Holzknecht, Lærke Smidt Gasbjerg, Johan Juhl Weisser, Hanne Wiese Hallberg, Magnus Arpi, Jacob Rosenberg
BACKGROUND: Treatment of secondary peritonitis includes surgery and antimicrobial agents. Antimicrobial agents are often administered intravenously, however, the alternative route intraperitoneal administration could be considered. Investigations must be conducted prior to clinical application. Therefore, we aimed to investigate the combination of fosfomycin, metronidazole, and recombinant human granulocyte-macrophage colony-stimulating factor with regard to its chemical properties and the solution's stability...
December 19, 2017: Drug Research
https://www.readbyqxmd.com/read/29232753/solvent-extraction-and-gc-ms-analysis-of-sesame-seeds-for-determination-of-bioactive-antioxidant-fatty-acid-fatty-oil-components
#4
Abdul Qadir, Athar Ali, Muhammad Arif, Abdulmohsen H Al-Rohaimi, Satya Prakash Singh, Usama Ahmad, Mohd Khalid, Arun Kumar
The seed kernels of Sesamum indicum L. (family: Pedaliaceae) were extracted with ethanol and yield of components determined by Gas Chromatography/Mass Spectrometry (GC/MS). The free radical scavenging activities of ethanolic extract against1, 1-Diphenyl-2-picrylhydrazyl (DPPH) were determined by UV spectrophotometer at 517 nm. Phytochemical screening revealed the presence of numerous bioactive compounds including steroids, phenolic, terpenoids, fatty acids and different types of ester compounds. The ethanolic extract was purified and analyzed by GC MS...
December 12, 2017: Drug Research
https://www.readbyqxmd.com/read/29232752/simultaneous-determination-of-rosuvastatin-rosuvastatin-5%C3%A2-s-lactone-and-n-desmethyl-rosuvastatin-in-human-plasma-by-uplc-ms-ms-and-its-application-to-clinical-study
#5
Xue Bai, Xi-Pei Wang, Guo-Dong He, Bin Zhang, Min Huang, Jia-Li Li, Shi-Long Zhong
Objective A rapid and sensitive ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) assay was developed and validated for the simultaneous quantification of rosuvastatin (RST), rosuvastatin-5 S-lactone (RSTL), and N-desmethyl rosuvastatin (DM-RST) in human plasma. Methods Sample was prepared by liquid-liquid extraction with ethyl acetate from 100 μL acidulated buffered plasma. Then analytes were chromatographically separated using an Acquity UPLC HSS T3 column (3.0 mm×100 mm, 1...
December 12, 2017: Drug Research
https://www.readbyqxmd.com/read/29207435/iron-pharmacokinetics-in-women-with-iron-deficiency-anaemia-following-a-single-oral-dose-of-a-novel-formulation-of-tardyferon-prolonged-release-ferrous-sulphate
#6
Andrew Leary, Laurence Barthe, Thierry Clavel, Claudie Sanchez, Zahida Issiakhem, Bruno Paillard, Jean-Marc Edmond
No abstract text is available yet for this article.
December 5, 2017: Drug Research
https://www.readbyqxmd.com/read/29202515/recent-progresses-in-breast-reconstruction-stem-cells-biomaterials-and-growth-factors
#7
Farshad Zarei, Hadis Daraee
Breast cancer is one of the most deadly tumors in women, and new procedures for post- surgical breast reconstruction have been developed which includes autologous stromal vascular fraction (SVF), platelet-derived growth factors, biomaterials and various stem cells. Adipose derived-stem cells (ASCs) has been reported to be one of the most widely used stem cell for breast reconstruction because of their ability to form new functional adipose tissue and vessels and in combination with stromal vascular fraction has been also reported efficient for breast reconstruction...
December 4, 2017: Drug Research
https://www.readbyqxmd.com/read/29202514/glycyrrhetic-acid-derivative-ty501-protects-against-lithocholic-acid-induced-cholestasis
#8
Xuemin Zheng, Shichao Zhu, Zhixing Zhou, Wei Liu, Weiren Xu
The aim of the study is to investigate the protective effects of TY501 against LCA-induced cholestasis in mice and to explore the potential mechanisms. It was demonstrated that TY501(5, 15 or 45 mg/kg, i.g.) can markedly reduced the level of ALT, AST and ALP which increased by LCA treatment. Meanwhile, TY501 also lowered total bile acids, total bilirubin and total cholesterol levels in serum. Furthermore, TY501 can protect HepG2 cell cultures from LCA-induced cytotoxicity. RT-PCR and Western Blot analysis showed that TY501 recovered the expression of BSEP, MRP2 and NTCP which were down-regulated by LCA...
December 4, 2017: Drug Research
https://www.readbyqxmd.com/read/29190857/preparation-in-vitro-characterization-and-pharmacokinetic-study-of-coenzyme-q10-long-circulating-liposomes
#9
Shuoye Yang
Long-circulating liposomal delivery systems of encapsulated Coenzyme Q10 (CoQ10), a ubiquinone anti-cataract agent, were developed with different molar ratios of PEGylated lipids and/or cholesterol. The resulting samples were contrasted through observation of morphology, analysis of particle size and Zeta potential, and in vivo pharmacokinetics. A protamine aggregation method with high selectivity was developed to determine the encapsulation efficiency (EE), after which the liposome formulation was further optimized by applying a Box Behnken design (BBD) using EE as the evaluation index...
November 30, 2017: Drug Research
https://www.readbyqxmd.com/read/29190856/evaluation-of-paclitaxel-nanocrystals-in-vitro-and-in-vivo
#10
Wanqing Li, Zhiguo Li, Lisha Wei, Aiping Zheng
We created a novel paclitaxel (PTX) nanoparticle drug delivery system and compared this to acommercial injection preparation to evaluate the antitumor effects for both formulations in vivo and in vitro.PTXnanocrystals were 194.9 nm with potential of -29.6 mV. Cytotoxicity tests indicated that both formulations had similar effects and cytotoxicity was dose- and time-dependent.Pharmacodynamics indicated that the drug concentration at the tumor was greater with PTX nanocrystals compared to commercial injection (P<0...
November 30, 2017: Drug Research
https://www.readbyqxmd.com/read/29190855/efficacy-of-lophira-alata-leaf-extract-and-its-combination-with-artesunate-in-mice-prior-exposed-to-plasmodium-berghei
#11
Mofolusho O Falade, Favour Komoni, Roseangela I Nwuba
Enhanced antimalarial activity of plant extracts used for treatment of malaria in endemic areas is attributed to partial immunity gained by prior infection. This suggests synergy between immunity and extract activity in treatment. Testing this hypothesis, rodent malaria was used to determine efficacy of Lophira alata leaf extracts in treating malaria in prior infected mice. One round of P. berghei infection and Pyrimethamine drug-cure was used to establish partial immunity in mice. Previously Exposed Mice (PEM) and Previously Unexposed Mice (PUM) mice challenged with P...
November 30, 2017: Drug Research
https://www.readbyqxmd.com/read/29161749/role-of-drug-anesthesia-and-cancer
#12
Mahmoud Reza Moradkhani, Arash Karimi
Mortality and morbidity rate among cancer patients is at an alarming rate and its ratio of incidence is increasing as a result of its effects of metastasis and recurrence in its patients. Anesthetists are faced with the challenges daily of handling and treating cancer patients, for surgical resection to removal of the primary tumor. Retrospective analyses and studies have proposed a link between anesthetic technique and cancer outcomes. In this mini-review, we will give a summary of some of the available effects of anesthetic and analgesic techniques on cancer metastasis as derived from experimental cell culture and live animal data and also from clinical studies...
November 21, 2017: Drug Research
https://www.readbyqxmd.com/read/29156457/discovery-of-novel-thiazol-2-amines-and-their-analogues-as-bioactive-molecules-design-synthesis-docking-and-biological-evaluation
#13
Anil Kumar Verma, Abha Bishnoi, Shaheen Fatma, Huda Parveen, Vineeta Singh
A simple and highly efficient procedure for the synthesis of novel thiazol-2-amines, via Mannich reaction with secondary amines, is described. The newly synthesized derivatives 8(a-e) and 9(a-e) were characterized by (1)H NMR, (13)C NMR, IR, Mass spectroscopy and elemental analysis. All the derivatives were evaluated for their in-vitro anti-microbial activity against a panel of pathogenic strains of bacteria and fungi. The SAR showed that the secondary amines had a significant impact on the in-vitro antimicrobial activity of this class of agents...
November 20, 2017: Drug Research
https://www.readbyqxmd.com/read/29156456/impact-of-truncated-area-on-point-estimate-and-intra-subject-variability-in-bioequivalence-of-dutasteride-with-long-half-life
#14
Budi Prasaja, Yahdiana Harahap, Windy Lusthom, Lia Yumi, Anna Sofiana, Monica Sandra, Falah Safira, Uci Chilmi
Purpose To investigate the effect of using truncated area under the curve (AUC0-72) on bioequivalence of dutasteride with long half-life in point estimate and intra-subject variability. Methods Fifteen subjects were enrolled in this single-dose, open-label, randomized two-way crossover design following an overnight fasting with five-week washout period. Plasma samples were collected to 72 h and 144 h following drug administration and dutasteride were determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS) methods...
November 20, 2017: Drug Research
https://www.readbyqxmd.com/read/29132177/an-insight-on-silk-protein-sericin-from-processing-to-biomedical-application
#15
Farogh Ahsan, Tarique Mahmood Ansari, Shazia Usmani, Paramdeep Bagga
Silks are naturally occurring polymers that have been used clinically as sutures for hundreds of years. It's so for obtained from insects or worms, silk consists of a filament core protein, termed fibroin, and a glue-like coating made up of sericin proteins. An important component of silk has an extended history of being discarded as a waste in the course of silk processing. The cost of sericin for tissue engineering is underestimated and its capability in using as regenerative remedy has simply began to be explored...
November 13, 2017: Drug Research
https://www.readbyqxmd.com/read/29132176/verapamil-ver-enhances-the-cytotoxic-effects-of-docetaxel-and-vinblastine-combined-therapy-against-non-small-cell-lung-cancer-cell-lines
#16
Soleiman Jaferian, Maryam Soleymaninejad, Hadis Daraee
Lung cancer is one of the foremost tumor-associated cause of death in the world. Most of the patients with NSCLC possesses an advanced disease at diagnosis, and are thus probable subject for systemic therapy. This study aims to evaluate the cytotoxicity of vinblastine and docetaxel combined therapy for the treatment of NSCLC, as well as verapamil (VER) enhancement of the combined therapy. We conducted P-glycoprotein (P-gp) gene expression, protein expression with RT-PCR and western blot respectively, apoptotic response of the combined therapy with VER is also determined using DAPI staining (%)...
November 13, 2017: Drug Research
https://www.readbyqxmd.com/read/29108087/bupivacaine-versus-liposomal-bupivacaine-for-pain-control
#17
Siavash Beiranvand, Mahmoud Reza Moradkhani
Local infiltrations and regional blocks have been some of the effective ways employed to manage and control post-operative pain. One of the limitations of administration of local anesthesia drugs in post-operative conditions is its inability to act for a longer period of time. Multi-vesicular liposomes made up of bupivacaine have been progressively used for their increased duration of action. Compared to bupivacaine HCL, local infiltration of liposomal bupivacaine have shown to have a significantly increase the duration and delay in peak plasma concentration...
November 6, 2017: Drug Research
https://www.readbyqxmd.com/read/29108086/anti-degenerative-effect-of-apigenin-luteolin-and-quercetin-on-human-keratinocyte-and-chondrocyte-cultures-sar-evaluation
#18
Lucia Crascì, Venera Cardile, Giusy Longhitano, Francesco Nanfitò, Annamaria Panico
Background Inflammation is a dynamic process that occur on vascularized tissue in response to different stimuli causing cell injury and tissue degeneration. Reactive oxygen and nitrogen species (ROS and RNS) and advanced glycation end products (AGEs) have a key mediatory role in the development and progression of degenerative tissue process. The bioflavonoids possess a broad-spectrum of pharmacological activities. Their capability is related to their chemical structure. Methods In this study we evaluated and compare antioxidant, anti-glycative and anti-degenerative actions of two flavones apigenin and luteolin and a flavonol quercetin, in function of their hydroxyl groups arrangement...
November 6, 2017: Drug Research
https://www.readbyqxmd.com/read/29100265/nano-drug-for-pain-medicine
#19
Farshad Hasanzadeh-Kiabi
Pain is commonly categorized into two diverse groups: acute pain, characterized by early onset and last for a very short time; while chronic pain, characterized by a prolonged pain for least 3 months' duration. Timely and immediate management of critical pain is critical in reducing its aggravation to chronic pain. There has been successful application of nano-technology, nano-medicine to the treatment and management of pain both in clinical and experimental studies like the fabrication of nano-formulated liposomes to deliver drugs for pain therapy, formulation of non- steroidal anti-inflammatory drugs (NSAIDs)...
November 3, 2017: Drug Research
https://www.readbyqxmd.com/read/29100264/microwave-mediated-synthesis-and-analytical-method-development-for-the-estimation-of-novel-1-4-dihydropyridines-in-bulk-by-rp-hplc
#20
Anupreet Kaur, Jaspreet Kaur, Ranju Bansal
The present work describes a rapid and green microwave mediated method for the synthesis and a simple and precise isocratic reverse phase HPLC method for the estimation of the biologically significant dihydropyridines. The conventional synthesis of these dihydropyridines has been previously reported from our lab. The analysis of a standard solution (1 mg/ml) was accomplished on a symmetry (4.6 mm I.D x 250 mm) C-18 column using mobile phase acetonitrile:water:triethylamine (TEA) (70:30:0.1 v/v/v) at a flow rate of 0...
November 3, 2017: Drug Research
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