Comparison of efficacies of fetal bovine sera from different suppliers in cell culture experiments

AbstractFetal bovine serum (FBS) is widely used as a culture medium supplement. A high degree of variations is observed among FBS samples produced by different suppliers. The purpose of the present study was to compare between the quality and characteristics of FBS produced at Avicenna Research Institute (ARI-FBS) and a commercial FBS. Blood samples were taken from 50 healthy bovine fetuses at 2 –9 months of age. Following clotting of the blood, samples were centrifuged. Their sera were collected under sterile conditions. After irradiation, to investigate the performance and quality assurance of the serum samples, some biological properties in cell culture applications, including capacit ies in supporting single cell growth, proliferation, and cell viability were examined by cell cloning, MTT assay, and flow cytometry analysis. Comparison of ARI-FBS with commercial FBS showed that both of them were expedient and reliable for use in culture studies. However, significant differences i n growth rates of different cell lines were observed between them. Results of MTT assay showed that L929 cell line had a significantly better viability in ARI-FBS. Conversely, PC3 and SW480 cell lines were more viable in commercial FBS. In cloning experiments and flow cytometry, both sera showed sim ilar efficiencies. ARI-FBS supported cell growth and maintained cell viabilities in a similar manner to the commercial FBS. ARI-FBS may thus be a proper alternative for commercial FBS as a g...
Source: Comparative Clinical Pathology - Category: Pathology Source Type: research

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Conclusions: Results reveals that developed nitrendipine nanoemulsion gel overcomes the limitation of low penetration and accentuate permeation through albino Wistar rat skin. It was concluded that nanoemulsion gel could be utilized as a potential carrier for transdermal delivery of nitrendipine. PMID: 31976777 [PubMed - as supplied by publisher]
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
Authors: Rezaie Shirmard L, Ghofrani M, Bahari Javan N, Bayrami S, Tavassoli A, Rezaie A, Amini M, Kebriaee-Zadeh A, Rouini MR, Dinarvand R, Rafiee-Tehrani M, Dorkoosh FA Abstract Uncontrolled distribution of nanoparticles (NPs) within the body can significantly decrease the efficiency of drug therapy and is considered among the main restrictions of NPs application. The aim of this study was to develop a depot combination delivery system (CDS) containing fingolimod loaded poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) NPs dispersed into a matrix of oleic acid-grafted-aminated alginate (OA-g-AAlg) to minimize ...
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
Authors: Yoshida T, Sako K, Kondo H Abstract High consumption of oil formulations has been reported to reduce the blood exposure of drugs like tacrolimus. Consumption of oil formulations has also been shown to inhibit T-cell production of interleukin-2 (IL-2) compared to solid dispersion formulations (SDFs). However, a large amount of oil causes gastrointestinal side effects such as diarrhea and low compliance. Here, we investigated the feasibility of reducing the amount of oil and substitution of chemically synthetized oils for natural oils in these formulations. Reducing the amount of sunflower oil increased bloo...
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
CONCLUSIONS: In conclusion, the potential for supersaturation in LBDDS, and the risk of precipitation, was found to be highly drug dependent. The apparent degree of supersaturation was considered a major factor impacting the ability to maintain drug supersaturation upon storage. PMID: 31975613 [PubMed - as supplied by publisher]
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
Authors: Mailhot Vega RB, Hoppe BS PMID: 31976780 [PubMed - as supplied by publisher]
Source: Expert Review of Hematology - Category: Hematology Tags: Expert Rev Hematol Source Type: research
With a second case of a deadly Chinese virus confirmed in the United States, and four cases under investigation in New York, Buffalo-area hospitals are on alert and preparing as best as they can. The novel coronavirus was first identified in Wuhan, China, in December. More than 850 cases have since been reported worldwide, with more than 40 deaths in China. Transportation has been shutdown with travel restricted for millions in that country as international officials work to contain the di sease. In…
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