Correction: Javed et al. The Potential Impact of Smog Spell on Humans' Health Amid COVID-19 Rages. Int. J. Environ. Res. Public Health 2021, 18, 11408.

There was an error in the original publication [...].

Achyranthes aspera Extracts as Adjuvants for the Redressal of Antibiotic Resistance.

Achyranthes aspera seeds and leaves are believed to reverse antibiotic resistance and increase the efficacy of current drugs. Achyranthes aspera seeds and leaves contain many secondary metabolites needed for the redressal of antibiotic resistance. In the present study, seven different antibiotics were used against five different strains of bacteria such as Methicillin-resistant Staphylococcus aureus, Enterococcus faecalis, Acinetobacter baumannii, Klebsiella pneumoniae, and Pseudomonas aeruginosa. For Methicillin-resistant Staphylococcus aureus Cefoxitin, Penicillin, and Co-trimoxazole were resistant out of seven antibiotics. The zone of inhibition for all these three antibiotics goes from the resistant to the sensitive range after the combination with plant extracts. For Enterococcus faecalis, Ciprofloxacin, Levofloxacin, Penicillin, Amoxicillin, Imipenem, and Vancomycin were resistant after treatment with the plant extracts, and the Ciprofloxacin, Levofloxacin, Imipenem, and Vancomycin zones of inhibition were from the resistant to the sensitive range. An increase in zone sizes was observed for Penicillin, but it remained resistant while no zone of inhibition was observed for Amoxicillin. For Acinetobacter baumannii, Ciprofloxacin, Levofloxacin, Ceftriaxone, Ceftazidime, and Imipenem were resistant. After a combination of these antibiotics with plant extracts, a change in zone sizes was observed for Levofloxacin and Ceftriaxone, but it was not considerable as it remained in the resistance and intermediate ranges. No zones of inhibition were observed for Ciprofloxacin, Ceftazidime, or Imipenem. For Klebsiella pneumoniae, all the antibiotics were resistant. An increase in zone sizes was observed after a combination with plant extracts for Ceftazidime and Imipenem in Klebsiella pneumoniae, but it remained in the resistance category. No zone of inhibition was observed for Pseudomonas aeruginosa before or after using plant extracts against any antibiotic. This study suggests that the Achyranthes aspera seed and leaf extracts can reverse antibiotic resistance without any side effects on the human body, and that they can reverse antibiotic resistance naturally.

The Potential Impact of Smog Spell on Humans' Health Amid COVID-19 Rages.

Rapid and unchecked industrialization and the combustion of fossil fuels have engendered a state of fear in urban settlements. Smog is a visible form of air pollution that arises due to the over-emissions of some primary pollutants like volatile organic compounds (VOCs), hydrocarbons, SO2, NO, and NO2 which further react in the atmosphere and give rise to toxic and carcinogenic secondary smog components. Smog reduces the visibility on roads and results in road accidents and cancellation of flights. Uptake of primary and secondary pollutants of smog is responsible for several deleterious diseases of which respiratory disorders, cardiovascular dysfunction, neurological disorders, and cancer are discussed here. Children and pregnant women are more prone to the hazards of smog. The worsening menace of smog on one hand and occurrence of pandemic i.e., COVID-19 on the other may increase the mortality rate. But the implementation of lockdown during pandemics has favored the atmosphere in some ways, which will be highlighted in the article. On the whole, the focus of this article will be on the dubious relationship between smog and coronavirus.

Podophyllotoxin: History, Recent Advances and Future Prospects.

Podophyllotoxin, along with its various derivatives and congeners are widely recognized as broad-spectrum pharmacologically active compounds. Etoposide, for instance, is the frontline chemotherapeutic drug used against various cancers due to its superior anticancer activity. It has recently been redeveloped for the purpose of treating cytokine storm in COVID-19 patients. Podophyllotoxin and its naturally occurring congeners have low bioavailability and almost all these initially discovered compounds cause systemic toxicity and development of drug resistance. Moreover, the production of synthetic derivatives that could suffice for the clinical limitations of these naturally occurring compounds is not economically feasible. These challenges demanded continuous devotions towards improving the druggability of these drugs and continue to seek structure-optimization strategies. The discovery of renewable sources including microbial origin for podophyllotoxin is another possible approach. This review focuses on the exigency of innovation and research required in the global R&D and pharmaceutical industry for podophyllotoxin and related compounds based on recent scientific findings and market predictions.