SYNTHESIS, ANTIBACTERIAL AND ANTI- MYCOBACTERIAL ACTIVITY OF SOME NOVEL3-(6-PHENYL-[1,2,4]TRIAZOLO[3,4-B][1,3,4]THIADIAZOL-3-YL)-2H-CHROMEN-2-ONE
Several 3, 6-substituted - [1,2,4] Triazolo [3,4-b][1,3,4] Thiadiazole}-2H-Chromen-2-ones(5a-5j) have been synthesized from ethyl-2-oxo-2H-chromene-3-carboxylate (1) through a multistep reaction sequence. Compound 1 reacted with hydrazine hydrate in the presence of ethanol to give 2-oxo-2H-chromene-3-carbohydrazide (2) which on treatment with carbon disulphide and methanolic potassium hydroxide ...
A novel Assay method for the determinationof1-Deoxy nojirimycine(DNJ) was proposed by the authors using ion chromatography. The method was found to be accurate, simple and precise. A method precision RSD of 0.5%, RSD for intermediate precision of 0.6% and correlation coefficient was found to be 0.9999. A recovery of 99.7 to 100.1% at 50%, 100% and 150% levels was found. The DNJ solutions and mobil...
The post approval changes are the changes made to biological products that have received an approval and to provide the data to support a change which would be considered sufficient to allow a determination of the impact of the change on the quality of the approved products as it relates to safety, efficacy and/or effective use of the products. After the approval of NDA or ANDA, the applicant may ...
Kaempferol and quercetin are the flavonoids which are widespread in fruits and vegetables exhibiting important biological activities. A simple and precise HPTLC method was developed and validated for simultaneous determination of kaempferol and quercetin in herbal drug extracts of Podphyllum hexandrum and Cassia angustifolia. The HPTLC of flavonoids was performed with toluene: acetone: formic acid...
EVALUATION OF ANTI- HYPERGLYCAEMIC ACTIVITY OF MAYTENUS EMARGINATUS WILLD LEAVES EXTRACT ON STREPTOZOTOCIN-INDUCED DIABETES IN WISTAR RATS
Maytenus emarginatus Willd. Celeastraceae, popularly known as “Kankeri or kankero”, is a Thorny staff evergreen tree that is rich in various chemical constituents that determine the medicinal potential of this species. Diabetes mellitus is a disease that is affecting major population of the world. This study aimed to evaluate the antihyperglycaemic activity of the hydroalcoholic extract of the...
STUDIES ON PENETRATION ENHANCERS IN CORPORATED CREAM OF CLOBETASOL-17-PROPIONATE: DEVELOPMENT AND IN VITRO EVALUATION
Topical corticosteroids have long been the chronic stage in the treatment of steroid responsive dermatitis. Creams containing 0.05% w/w Clobetasol-17-propionate (CP) as active ingredient are categorized as super potent class I topical dermatological corticosteroids. For the drug molecule to reach the cutaneous microcirculation, enhance, the systemic circulation, have to transverse both the lipophi...
The crude methanolic study of Vanda roxburghii root was investigated for antioxidant, analgesic and cytotoxic activity. The extract of Vanda roxburghii root showed antioxidant activity in DPPH radical scavenging activity, nitric oxide scavenging power assay. In DPPH and NO scavenging assay the extract shown adequate antioxidant activity and the IC50 values in DPPH radical scavenging and NO scaveng...
Diabetes mellitus is the common metabolic disorder seen in 2.8% of the world’s population. It is expected to cross 5.4% by 21st century. It is one of the causes of death in this 21st century. Since many years, herbal medicines are used as a source of medicine in Ayurveda and also in some traditional systems of medicine. Ayurveda and other traditional systems have textual evidence about the uses ...
ISOLATION AND DEVELOPMENT OF AN HPLC METHOD FOR THE QUANTIFICATION OF A BIOMARKER IN THE ROOTS OF PAULLINIA PINNATA
An RP-HPLC method to be used to quantitate the amount of a biomarker in the roots of Paullinia pinnata was developed. The root bark was milled and extracted and the dry powder obtained taken through column chromatography (CC). The biomarker was then isolated. The melting point of the biomarker was determined and found to be 117-119 oC. A RP-HPLC method was successfully developed and used to quanti...
Walnuts from Northwest region of Syria was collected to determine Omega-6 (linoleic acid (LA, 18:2n-6)) and Omega-3 (α-linolenic acid (ALA, 18:3n-3)) in their oils, also called essential fatty acids (EFAs). This work was carried out using two different portions of samples. First samples were collected at harvest and second samples stored for one year under normal conditions. The extraction of...