Rapid stability-indicative turbidimetric assay to determine the potency of cefadroxil monohydrate capsules

2018 ◽  
Vol 10 (6) ◽  
pp. 660-666 ◽  
Author(s):  
Bianca Aparecida de Marco ◽  
Hérida Regina Nunes Salgado

Microbiological methods for the analysis of antimicrobials are indispensable to quality control processes, since they can provide important information about their biological activities, which physicochemical methods are not able to provide.

2009 ◽  
Author(s):  
Morris Goldsmith ◽  
Larry L. Jacoby ◽  
Vered Halamish ◽  
Christopher N. Wahlheim

SoftwareX ◽  
2021 ◽  
Vol 15 ◽  
pp. 100725
Author(s):  
Abanti Shama Afroz ◽  
Francesco Inglese ◽  
Cesare Stefanini ◽  
Mario Milazzo

Cell Reports ◽  
2016 ◽  
Vol 14 (3) ◽  
pp. 422-428 ◽  
Author(s):  
Ling Yang ◽  
Danilo Licastro ◽  
Edda Cava ◽  
Nicola Veronese ◽  
Francesco Spelta ◽  
...  

2014 ◽  
Vol 97 (2) ◽  
pp. 567-572 ◽  
Author(s):  
Patsy Root ◽  
Margo Hunt ◽  
Karla Fjeld ◽  
Laurie Kundrat

Abstract Quality assurance (QA) and quality control (QC) data are required in order to have confidence in the results from analytical tests and the equipment used to produce those results. Some AOAC water methods include specific QA/QC procedures, frequencies, and acceptance criteria, but these are considered to be the minimum controls needed to perform a microbiological method successfully. Some regulatory programs, such as those at Code of Federal Regulations (CFR), Title 40, Part 136.7 for chemistry methods, require additional QA/QC measures beyond those listed in the method, which can also apply to microbiological methods. Essential QA/QC measures include sterility checks, reagent specificity and sensitivity checks, assessment of each analyst's capabilities, analysis of blind check samples, and evaluation of the presence of laboratory contamination and instrument calibration and checks. The details of these procedures, their performance frequency, and expected results are set out in this report as they apply to microbiological methods. The specific regulatory requirements of CFR Title 40 Part 136.7 for the Clean Water Act, the laboratory certification requirements of CFR Title 40 Part 141 for the Safe Drinking Water Act, and the International Organization for Standardization 17025 accreditation requirements under The NELAC Institute are also discussed.


2021 ◽  
Vol 14 ◽  
Author(s):  
Urszula Karczmarczyk ◽  
Piotr Ochniewicz ◽  
Ewa Laszuk ◽  
Kamil Tomczyk ◽  
Piotr Garnuszek

Background: The choice of mice strain can significantly influence the physiological distribution and may lead to an inadequate assessment of the radiopharmaceutical properties. Objective: This work aims to present how the legal requirements that apply to radiopharmaceuticals contained in the various guidelines determine the choice of the mouse strain for quality control and preclinical studies and affect the results of physiological distribution. Methods: Swiss and BALB/c mice were chosen as commonly used strains in experiments for research and quality control purposes. Radiopharmaceuticals, i.e., preparations containing one or more radioactive isotopes in their composition, are subject to the same legal regulations at every stage of the research, development and routine quality control as all other medicines. Therefore, in vivo experiments are to be carried out to confirm the pharmacological properties and safety. Moreover, if a radiopharmaceutical's chemical structure is unknown or complex and impossible to be determined by physicochemical methods, an analysis of physiological distribution in a rodent animal model needs to be performed. Results: In our studies, thirty-six mice (Swiss n=18, BALB/c n=18) were randomly divided into six groups and injected with the following radiopharmaceuticals: [99mTc]Tc-Colloid, [99mTc]Tc-DTPA and [99mTc]Tc-EHIDA. Measurement of physiological distribution was conducted following the requirements of European Pharmacopoeia (Ph. Eur.) monograph 0689, internal instructions and the United States Pharmacopeia (USP) monograph, respectively. Additionally, at preclinical studies, ten mice (Swiss n=5, BALB/c n=5) were injected with the new tracer [99mTc]Tc-PSMA-T4, and its physiological distribution has been compared. The p-value <0.05 proved the statistical significance of the radiopharmaceutical physiological distribution. Conclusion: We claim that mice strain choice can significantly influence the physiological distribution and may lead to inaccurate quality control results and incomprehensible interpretation of the results from preclinical in vivo studies of a new radiopharmaceutical.


Author(s):  
Carlos A. Espinal ◽  
Daniel Matulić

AbstractRecirculating aquaculture technology, which includes aquaponics, has been under development for the past 40 years from a combination of technologies derived from the wastewater treatment and aquaculture sectors. Until recently, recirculating aquaculture systems (RAS) farms have been relatively small compared with other types of modern aquaculture production. The last two decades have seen a significant increase in the development of this technology, with increased market acceptance and scale. This chapter provides a brief overview of the history, water quality control processes, new developments and ongoing challenges of RAS.


2015 ◽  
Vol 43 (05) ◽  
pp. 783-834 ◽  
Author(s):  
Xiao-Jia Chen ◽  
Zheng-Hai Tang ◽  
Xi-Wen Li ◽  
Cai-Xiang Xie ◽  
Jin-Jian Lu ◽  
...  

Epimedii Folium (Yinyanghuo in Chinese) is one of the most commonly used traditional Chinese medicines. Its main active components are flavonoids, which exhibit multiple biological activities, such as promotion of bone formation and sexual function, protection of the nervous system, and prevention of cardiovascular diseases. Flavonoids also show anti-inflammatory and anticancer effects. Various effective methods, including genetic and chemical approaches, have been developed for the quality control of Yinyanghuo. In this review, the studies conducted in the last decade about the chemical constituents, quality control, and bioactivity of Yinyanghuo are summarized and discussed.


Metabolomics ◽  
2017 ◽  
Vol 13 (5) ◽  
Author(s):  
Warwick B. Dunn ◽  
David I. Broadhurst ◽  
Arthur Edison ◽  
Claude Guillou ◽  
Mark R. Viant ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document