Abstract：
:Mathematical models were determined relating preservative concentration and D values (decimal reduction times at 25 degrees C; pH 6.9-7.1) against Escherichia coli in aqueous medium. Preservatives investigated were 2-bromo-2-nitro-1,3-propanediol (Bronopol), N-(hydroxymethyl)-N-(1,3-dihydroxymethyl-2, 5-dioxo-4-imidazolidinyl)-N'-(hydroxymethyl)urea (Germall II), phenethyl alcohol, and benzyl alcohol. Linear regression was used to determine D values [i.e., the time required for a particular concentration of preservative at a specified pH, temperature, and medium to cause a 90% reduction of viable organisms (E. coli)] from a number of concentrations of each preservative. Linear regression of the log D values versus the log of the concentration (a minimum of 4 concentrations per preservative) were used to derive power curves. Concentration exponents, eta values (the logarithmic values relating changes in rates of kill for specified changes in concentrations) and A values (extrapolated D values at 1% concentration), were determined. Correlation coefficients for these power fits ranged from -0.987 to -0.999. Plots depicting the closeness of fit of the models to the actual data are shown.
journal_name
J Pharm Scijournal_title
Journal of pharmaceutical sciencesauthors
Hurwitz SJ,McCarthy TJdoi
10.1002/jps.2600740820subject
Has Abstractpub_date
1985-08-01 00:00:00pages
892-4issue
8eissn
0022-3549issn
1520-6017pii
S0022-3549(15)46797-8journal_volume
74pub_type
杂志文章abstract：:Systemic administration of drugs is ineffective in the treatment of central nervous system disorders because of the blood-brain barrier. Nasal administration has been suggested as an alternative administration route as drugs absorbed in the olfactory epithelium bypass the blood-brain barrier and reach the brain within...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1016/j.xphs.2019.03.006
更新日期：2019-08-01 00:00:00
abstract：:2',7'-Bis(2-carboxyethyl)-5(6)-carboxyfluorescein (BCECF) is a fluorescent probe used to examine multidrug resistance-associated protein (MRP) transporter activity in cells. BCECF is introduced into the cell as the nonfluorescent membrane permeable acetoxymethyl ester, BCECF-AM, where it is hydrolyzed to the membrane ...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.20018
更新日期：2004-04-01 00:00:00
abstract：:A sensitive high-performance liquid chromatographic (HPLC) assay for N-acetylcysteine in human plasma and urine has been developed. The method employs a prechromatographic stage to produce the dinitrophenyl derivative of N-acetylcysteine, which is chromatographed on a 5-microns C18 bonded reverse-phase column using an...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600730736
更新日期：1984-07-01 00:00:00
abstract：:Safety evaluation of self-assembled polymeric micelles is important for biomedical involvement in drug delivery systems in the future. In this study, biodegradable monomethyl poly (ethylene glycol)-poly (ε-caprolactone)-poly (trimethylene carbonate) [MPEG-P(CL-co-TMC)] copolymer was synthesized and characterized by Fo...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.23800
更新日期：2014-01-01 00:00:00
abstract：:A method for the simultaneous determination of etoricoxib and its carbon-13 analog ((13)C(6)-etoricoxib) from human plasma has been developed and used to support bioavailability studies. Plasma samples (0.5 mL) were extracted by using a 3M Empore 96-well plate (C(8)) and the resulting extracts were analyzed by using a...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.10038
更新日期：2002-02-01 00:00:00
abstract：:The intrinsic factor-mediated binding of cyanocobalamin to cholestyramine was studied in vitro under varying conditions of pH, added electrolyte, and bile salt. The intrinsic factor-cyanocobalamin complex was adsorbed strongly by the resin at pH 3 in the presence of neutral salt and low concentrations of glycocholic a...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600671132
更新日期：1978-11-01 00:00:00
abstract：:Near infrared (NIR) spectroscopy was used for quantitatively monitoring polymorph conversion of an active pharmaceutical ingredient (API) in wet granulation. The API under pharmaceutical development has two different polymorphs. Polymorph A is the stable form for drug development and polymorph B is the undesired form ...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.20501
更新日期：2005-12-01 00:00:00
abstract：:Experimental solubilities are reported for anthracene in binary solvent mixtures containing p-dioxane with n-hexane, cyclohexane, n-heptane, methylcyclohexane, n-octane, cyclooctane, and isooctane at 25 degrees C. Results of these measurements, used in conjunction with the nearly ideal binary solvent (NIBS) model, ena...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600760807
更新日期：1987-08-01 00:00:00
abstract：:We describe the key issues and possibilities for continuous final dosage formation, otherwise known as downstream processing or drug product manufacturing. A distinction is made between heterogeneous processing and homogeneous processing, the latter of which is expected to add more value to continuous manufacturing. W...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章,评审
doi：10.1002/jps.24247
更新日期：2015-03-01 00:00:00
abstract：:Eight analogs of the fentanyl-type analgesics, in which the piperidine ring is restricted into a boat conformation, were evaluated for analgesic activity. All analogs were less active than fentanyl, but interesting conformational and structural relationships were observed. Results of the study are discussed. ...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600690934
更新日期：1980-09-01 00:00:00
abstract：:An interlaboratory comparison of two extraction methods and one thermal desorption test method for the quantification of ethylene oxide (EO) by gas chromatography in two common medical device materials, high density polyethylene (HDPE) and plasticized polyvinyl chloride (PVC), was conducted by 15 laboratories. The thr...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600840524
更新日期：1995-05-01 00:00:00
abstract：:This work reports the measurement of the partition rate of a model drug, ibuprofen (IBU), from aqueous solutions into octanol in the absence and presence of common pharmaceutical excipients including glucose, lactose, maltoheptaose, hydroxypropyl methylcellulose, polyvinylpyrrolidone, polyvinylpyrrolidone-vinyl acetat...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1016/j.xphs.2018.11.026
更新日期：2019-01-01 00:00:00
abstract：:Postabsorptive factors which can affect systemic drug exposure are assumed to be dependent on the active pharmaceutical ingredient (API), and thus independent of formulation. In contrast, preabsorptive factors, for example, hypochlorhydria, might affect systemic exposure in both an API and a formulation-dependent way....
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1016/j.xphs.2016.10.008
更新日期：2017-02-01 00:00:00
abstract：:Lipids were extracted from human stratum corneum and the remaining corneocytes were reaggregated with different lyotropic liquid crystals. Water transport through the reaggregated stratum corneum was determined using a diffusion chamber according to Smith and Blank. The permeability constant for the reaggregated strat...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600800506
更新日期：1991-05-01 00:00:00
abstract：:A new mucoadhesive tablet, which releases natural active agents for pain reduction and rapid healing of canker sores, has been prepared and characterized. Adhesive tablets were prepared by compression molding of mixed powders of crosslinked polyacrylic acid and hydroxypropyl cellulose, absorbed with citrus oil and mag...
journal_title：Journal of pharmaceutical sciences
pub_type： 临床试验,杂志文章
doi：10.1002/jps.20193
更新日期：2004-12-01 00:00:00
abstract：:4,5-Dimethoxykynuramine was synthesized in a three-step sequence originating with veratrole. Indirect evidence indicates that the drug was converted in vivo to the hypotensive agent 6,7-dimethoxy-4-quinolinol by the action of monoamine oxidase. ...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600670344
更新日期：1978-03-01 00:00:00
abstract：:The S6-(N-alkyl-N-alkoxycarbonyl)aminomethyl-6-MP (6-CARB-6-MP) prodrugs 5-20 were synthesized from the reaction of 6-MP with N-alkyl-N-alkyoxycarbonylaminomethyl chlorides (4) in dimethyl sulfoxide in overall yields of 5-62%, depending on the N-alkyl and the alkoxy groups involved. The derivatives were fully characte...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600790116
更新日期：1990-01-01 00:00:00
abstract：:4-Fluoroisoleucine was produced by ammonolysis of 2-bromo-4-fluoro-3-methylpentanoic acid, which resulted from the bromofluorination of 4-methyl-2-pentenoic acid. It did not inhibit Plasmodium berghei in mice at 640 mg/kg and was not toxic to the animals. The fluoroamino acid inhibited Aspergillus niger, Trichoderma v...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600670542
更新日期：1978-05-01 00:00:00
abstract：:Nitroglycerin is rapidly lost from solution when incubated with red blood cells or whole blood. The assumption that the loss is enzymatic in nature may not be true, since no major metabolite is detected during this incubation. Explanation on the basis of a chemical reaction is also difficult, since the products of the...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600720403
更新日期：1983-04-01 00:00:00
abstract：:Emerging 3D printing technologies offer an exciting opportunity to create customized 3D objects additively from a digital design file. 3D printing may be further leveraged for personalized medicine, clinical trial, and controlled release applications. A wide variety of 3D printing methods exists, and many studies focu...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1016/j.xphs.2020.06.027
更新日期：2020-10-01 00:00:00
abstract：:Two human bioavailability studies were conducted to assess the in vivo performances of recently marketed 200-, 300-, and 400-mg ibuprofen capsules relative to the innovator's 300- and 400-mg tablets when administered as single oral 300- or 400-mg doses. An ibuprofen oral solution was also administered in each trial. W...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600710920
更新日期：1982-09-01 00:00:00
abstract：:Tablets with a central hole and a water-impermeable coating were prepared. These perforated coated tablets (PCTs) dissolve and release drug through the central hole only. In vitro release of the model drugs sodium benzoate and benzamide from PCTs occurred at a constant rate up to 80% release. The zero-order release ra...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600770408
更新日期：1988-04-01 00:00:00
abstract：:A multidisciplinary team approach to identify pharmaceutical impurities is presented in this article. It includes a representative example of the methodology. The first step is to analyze the sample by LC-MS. If the structure of the unknown impurity cannot be conclusively determined by LC-MS, LC-NMR is employed. If th...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.20120
更新日期：2004-09-01 00:00:00
abstract：:A highly sensitive assay for the measurement of all-trans-retinoic acid (tretinoin) and 13-cis-retinoic acid (isotretinoin) has been developed. Collected plasma samples were protein precipitated with 2-propanol followed by solid phase extraction. The retinoic acids were subsequently derivatized to their pentafluoroben...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1021/js950339x
更新日期：1996-03-01 00:00:00
abstract：:Baclofen, a widely used antispastic agent, has been found to exist in two crystalline forms, the anhydrate and monohydrate. The aim of this study was (1) to identify and characterize these two solid phases of baclofen, and (2) to examine the processing-induced phase transformations associated with wet granulation of b...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.20894
更新日期：2007-09-01 00:00:00
abstract：:Recent murine studies found that rifapentine, dosed daily, at least halved tuberculosis treatment times compared with standard rifampicin and isoniazid-containing regimens. However, in humans, an inhalable form of rifapentine may be necessary to considerably shorten treatment duration because of the physiological barr...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.23911
更新日期：2014-05-01 00:00:00
abstract：:A GLC method is described for the determination of iminodibenzyl and desipramine impurities in imipramine hydrochloride and its formulated products. These impurities were extracted from an alkaline solution with a mixture of 30% methylene chloride in hexane for chromatography on a 3% OV-17 GLC column. Iminodibenzyl wa...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600710515
更新日期：1982-05-01 00:00:00
abstract：:We investigated the effect of cytochrome P450 (CYP) 2C9 polymorphism on the inhibition of methylhydroxylation activity of tolbutamide, a typical CYP2C9 substrate, by triazole antifungal agents, fluconazole and voriconazole. Although the Michaelis constants (Km), maximal velocities (Vmax), and Vmax/Km values for CYP2C9...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1016/j.xphs.2016.01.007
更新日期：2016-03-01 00:00:00
abstract：:The kinetic barrier against the transport of methyl and ethyl nicotinates across the water-isopropyl myristate interface has been studied as a function of temperature using a rotating diffusion cell. The temperature dependence of the interfacial transfer kinetics has enabled calculation of the thermodynamic parameters...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600720212
更新日期：1983-02-01 00:00:00
abstract：:Ethyl, n-dodecyl, and n-hexadecyl esters of urocanic acid (4-imidazoleacrylic acid) were prepared from 4-imidazolecarboxaldehyde in satisfactory yields via the Wittig reaction. ...
journal_title：Journal of pharmaceutical sciences
pub_type： 杂志文章
doi：10.1002/jps.2600700123
更新日期：1981-01-01 00:00:00
