Posted by admin on Jun 30, 2015 in |
A 20-year-old male patient reported to ophthalmology outpatient department with complaint of loss of vision in right eye since childhood and diminished vision in left eye for 1month of duration. Funduscopy revealed right side optic atrophy and left sided vitreous hemorrhage. Non-contrast computed tomography study of head showed hyperdense circle of Willis and cerebral venous sinuses. No contrast was given before the computed tomography scan of head. Bilateral orbit showed right sided oval enlarged eye ball with medial deviation and normal left eye ball. Magnetic resonance venography was advised to rule out sinus venous thrombosis which revealed normal study of sinuses. On clinical examination, the patient had clubbing of all fingers, mild cyanosis, hyperemia of lower conjunctiva and systolic murmurs on auscultation with raised hematocrit level (72 percentage). Echocardiography examinations of the patient shows features of tetralogy of Fallot (TOF). The hyper-dense vessel was due to raised hematocrit (secondary polycythemia...
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Posted by admin on Jun 30, 2015 in |
An oral press-coated tablet was developed by means of direct compression to achieve the time-controlled disintegrating or rupturing function with a distinct predetermined lag time. The aim of the present study is to develop time depended drug delivery systems for Aceclofenac by using HPMC K100M and ethylcellulose (EC) as coating material. By applying 32 full factorial design, compression coated tablets of Aceclofenac containing different proportions of EC and HPMC K100M was prepared. All the formulations were evaluated for the hardness, friability, thickness, weight variation, drug content uniformity, and in-vitro drug release studies for 8 hr. Press coated tablets of Aceclofenac released different amount of the Aceclofenac, within the 8hr dissolution study, in the physiological environment of the stomach and small intestine, depending on the proportion of EC: HPMC K100M used in the formulation. The compression coated formulations have been formulated to release minimum amount of Aceclofenac within 6 hr dissolution study in the physiological environment of the stomach and small intestine. The results of the dissolution study showed that...
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Posted by admin on Jun 30, 2015 in |
Ceropegia bulbosa is a medicinal herb, this is useful in curing many disease like kidney stone and deafness. Ethno botanical study showed that the plant has good medicinal value for tribe of Rajasthan the preliminary phytochemical studies of Ceropegia attenuata tuber and leaf extracts revealed the presence of steroids, glycosides, flavonoids alkaloids, saponins, tannins, terpenoids and potassium salt. Gas chromatography mass spectroscopic investigation of methanolic extract of Ceropegia attenuata – a annual land plant is investigated by GCMS technique while the mass spectra of the compounds found in the extract are matched with the standard library of NIST. GC MS analysis revealed the presence of aromatic hydrocarbons, paraffins, fatty acids, sterol, Oleic acid, ketons and diterpenes etc. Flavone 4′-Oh,5-Oh,7-Di-O-Glucoside (12.09%) with RT=31.78 is present in maximum amount , followed by 9,12,15-Octadecatrienoic acid, methyl ester, (Z,Z,Z)- (7.92%) with RT=16.17 in the methanolic extract of leaves of C.attenuata. Steroids like Ergost-5-en-3-ol-(3.0%), Stigmast-5-Dien-3-Ol, (3.Beta.) (5.26%), Lupeol, Globulol and Phytol were also detected. Tetratetracontane (5.13%) was also present in considerable amount. The GC-MS...
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Posted by admin on Jun 30, 2015 in |
Present work has been undertaken to establish the necessary pharmacognostic standards and phytochemical evaluation of roots of Acacia catechu Willd. Various morphological parameters of fresh as well as shade dried form of the roots were studied. Microscopy shows the presence of medullary rays, starch grains, pith, phloem fibres, cork cells and xylem cells. Physico-chemical constants such as Fluorescence analysis of root powder and extracts, ash values, loss on drying, extractive value, swelling index, percentage extractive values for successive extracts, consistency and color of different extracts under ordinary and UV light were evaluated. Phytochemical screening of total ethanolic and aqueous extracts shows the presence of flavonoids, tannins, saponin glycosides, & reducing sugars. HPTLC was carried out for quantification of quercetin in ethanolic extract of the roots of A. catechu Willd. It was concluded that plant contains various phytochemicals; among these tannins and flavonoids are its main...
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Posted by admin on Jun 30, 2015 in |
Simple, linear and accurate method was developed for the quantification of Z-isomer impurity and 3, 4-dihydroxy-5-nitrobenzaldehyde intermediate in entacapone active pharmaceutical ingredient by using high performance liquid chromatography. Separation between impurities and Entacapone was achieved on Phenomenox Kinetex C18, (100 x 4.6) mm, 2.6 micron column. Mobile phase consisted of 0.1% Orthrophosphoric acid in water: Methanol in ratio 58:42:0.1 in isocratic mode for RSD of standard. Gradient method was used for sample preparation and blank with flow rate of 0.8 ml/min at 300 nm and column oven temperature at 50°C. RSD for standard preparation under system precision and percentage recovery was observed with in acceptance range. RSD for retention time was observed 0.05% which shows reproducibility during replicate injections. Limit of detection and limit of quantification was achieved at 0.1 ppm and 0.2 ppm level respectively which indicates the lowest level of detection and quantification. The linearity range was achieved from 0.2 ppm to 0.75 ppm level for entacapone, Z-isomer and intermediate. The method was applied for quantification of...
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