In silico ADME, Bioactivity and Toxicity Parameters Calculation of Some Selected Anti-Tubercular Drugs

2016 ◽  
Vol 6 (6) ◽  
pp. 77 ◽  
Author(s):  
Shashank Shekhar Mishra ◽  
Chandra Shekhar Sharma ◽  
Hemendra Pratap Singh ◽  
Harshda Pandiya ◽  
Neeraj Kumar
Keyword(s):  
Antibiotic Resistance ◽  
In Silico ◽  
Bacillus Calmette Guerin ◽  
Computational Investigation ◽  
Pharmacological Profile ◽  
In Silico Toxicity ◽  
Is Development ◽  
Potent Drug ◽  
Minimal Resistance ◽  
Parameters Calculation

Tuberculosis, one of the most frequent infectious diseases, is caused by a mycobacterium tuberculosis bacteria and it infects several hundred million people each year, results in several million deaths annually. Because there is development of antibiotic resistance, the disease becomes incurable. So, in the absence of effective and potent drug with minimal resistance problems, the mortality rate increases annually. In this computational investigation, we performed In-silico ADME, bioactivity and toxicity parameters calculation of some selected anti-tuberculosis agents. To design a new molecule having good pharmacological profile, this study will provide the lead information.Key Words: Tuberculosis (TB), Bacillus Calmette-Guerin vaccine, TPSA, In Silico toxicity

In silico discovery of novel flavonoids as poly ADP ribose polymerase (PARP) inhibitors

2020 ◽  
Vol 16 ◽  
Author(s):  
Ashish Shah ◽  
Ghanshyam Parmar ◽  
Avinash Kumar Seth
Keyword(s):  
Virtual Screening ◽  
In Silico ◽  
Synthetic Lethality ◽  
Parp Inhibitor ◽  
Parp Inhibitors ◽  
Docking Studies ◽  
Docking Score ◽  
Docking Method ◽  
Anti Cancer ◽  
In Silico Toxicity

Background: The concept of synthetic lethality is emerging field in the treatment of cancer and can be applied for new drug development of cancer as it has been already represented by Poly (ADP-ribose) polymerase (PARPs) inhibitors. Objectives: In this study we performed virtual screening of 329 flavonoids obtained from Naturally Occurring Plant-based Anti-cancer Compound-Activity-Target (NPACT) database to identify novel PARP inhibitors. Materials and methods: Virtual screening carried out using different In Silico methods which includes molecular docking studies, prediction of druglikeness and In Silico toxicity studies. Results: Fifteen out of 329 flavonoids achieved better docking score as compared to rucaparib which is an FDA approved PARP inhibitor. These 15 hits were again rescored using accurate docking mode and drug-likeliness properties were evaluated. Accuracy of docking method was checked using re-docking. Finally NPACT00183 and NPACT00280 were identified as potential PARP inhibitors with docking score of -139.237 and -129.36 respectively. These two flavonoids were also showed no AMES toxicity and no carcinogenicity which was predicted using admetSAR. Conclusion: Our finding suggests that NPACT00183 and NPACT00280 have promising potential to be further explored as PARP inhibitors.

scholarly journals Safety Assessment of Bacillus subtilis MB40 for Use in Foods and Dietary Supplements

Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 733
Author(s):  
Jessica L. Spears ◽  
Richard Kramer ◽  
Andrey I. Nikiforov ◽  
Marisa O. Rihner ◽  
Elizabeth A. Lambert
Keyword(s):  
Antibiotic Resistance ◽  
Bacillus Subtilis ◽  
Dietary Supplements ◽  
Genome Sequencing ◽  
In Silico ◽  
Safety Assessment ◽  
In Vivo Studies ◽  
Strain Identification ◽  
Consumer Safety

With the growing popularity of probiotics in dietary supplements, foods, and beverages, it is important to substantiate not only the health benefits and efficacy of unique strains but also safety. In the interest of consumer safety and product transparency, strain identification should include whole-genome sequencing and safety assessment should include genotypic and phenotypic studies. Bacillus subtilis MB40, a unique strain marketed for use in dietary supplements, and food and beverage, was assessed for safety and tolerability across in silico, in vitro, and in vivo studies. MB40 was assessed for the absence of undesirable genetic elements encoding toxins and mobile antibiotic resistance. Tolerability was assessed in both rats and healthy human volunteers. In silico and in vitro testing confirmed the absence of enterotoxin and mobile antibiotic resistance genes of safety concern to humans. In rats, the no-observed-adverse-effect level (NOAEL) for MB40 after repeated oral administration for 14 days was determined to be 2000 mg/kg bw/day (equivalent to 3.7 × 1011 CFU/kg bw/day). In a 28 day human tolerability trial, 10 × 109 CFU/day of MB40 was well tolerated. Based on genome sequencing, strain characterization, screening for undesirable attributes and evidence of safety by appropriately designed safety evaluation studies in rats and humans, Bacillus subtilis MB40 does not pose any human health concerns under the conditions tested.

Literature-Based Phenotype Survey and In Silico Genotype Investigation of Antibiotic Resistance in the Genus Bifidobacterium

2020 ◽  
Vol 77 (12) ◽  
pp. 4104-4113
Author(s):  
Linyan Cao ◽  
Huahai Chen ◽  
Qinghao Wang ◽  
Baiyuan Li ◽  
Yunfei Hu ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
In Silico

scholarly journals SYNTHESIS OF SOME CHALCONE DERIVATIVES, IN VITRO AND IN SILICO TOXICITY EVALUATION

2020 ◽  
Vol 13 (01) ◽  
pp. 654-662
Author(s):  
A. N. Kristanti ◽  
H. Suwito ◽  
N.S. Aminah ◽  
K.U. Haq ◽  
H. D. Hardiyanti ◽  
...  
Keyword(s):  
In Silico ◽  
Toxicity Evaluation ◽  
Chalcone Derivatives ◽  
In Silico Toxicity

Quantification and In Silico Toxicity Assessment of Tazarotene and its Impurities for a Quality and Safe Drug Product Development

2019 ◽  
Vol 57 (7) ◽  
pp. 625-635 ◽  
Author(s):  
NVVSS Narayana Murty Nagulakonda ◽  
Ravi Shekar Ananthula ◽  
T Krishnamurthy ◽  
Muguda Ravi Prasada Rao ◽  
Gollapalli Nageswara Rao
Keyword(s):  
Product Development ◽  
In Silico ◽  
Limit Of Detection ◽  
Drug Product ◽  
Acne Vulgaris ◽  
Toxicity Assessment ◽  
Limit Of Quantification ◽  
Related Substances ◽  
In Silico Toxicity

Abstract Tazarotene is internationally accepted common name for ethyl 6-[(4,4-dimethylthiochroman-6-yl)ethynyl]nicotinate. It is a synthetic retinoid used for the topical treatment of mild to moderate plaque psoriasis, acne vulgaris and photo aging. To ensure the quality of drug product and drug substance, a LC–MS compatible UHPLC method was developed for quantification of drug and its related substances. Stationary phase with fused core particle technology is used for the separation of impurities. Limit of quantification and limit of detection of the method are 0.1 and 0.03%, respectively. Precision of the method for Tazarotene and all its related substances is less than 2.2% RSD. The correlation coefficient is >0.999. Accuracy of method is ranged from 95.3% to 107.0%. Application of this method in stability analysis has been demonstrated by analyzing stressed samples. Experimental design is used for the verification of robustness of the method. To ensure the safety, an in silico toxicity of the drug and its related substances were determined using TOPKAT and DEREK toxicity predictions Both UHPLC and in silico methods were validated as per the ICH Q2 and ICH M7 guidelines, which will enable a rapid product development of Tazarotene topical formulations while ensuring the safety and quality of product.

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