Ahmad Nisar

Dr. Ahmad Nisar

Department of Biotechnology, Genetics, Forensic and Microbiology, University of Swat, Mingora, Pakistan
orcid

Research Focus & Metrics

Academic Career Length

27Years (2000-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2011 in Asian Pacific Journal of Tropical Biomedicine
Verified
Journal Article
Closed access
Ahmad NisarAhmad Nisar
Ahmad Nisar
Hina FazalHina Fazal
Hina Fazal
MAMuhammad Ayaz
Muhammad Ayaz
Bilal Haider AbbasiBilal Haider Abbasi
Bilal Haider Abbasi
IMIjaz Mohammad
Ijaz Mohammad
LFLubna Fazal
Lubna Fazal
The main objective of the current study is to investigate the potential of Carica papaya leaves extracts against Dengue fever in 45 year old patient bitten by carrier mosquitoes. For the treatment of Dengue fever the extract was prepared in water. 25 mL of aqueous extract of C. papaya leaves was administered to patient infected with Dengue fever twice daily i.e. morning and evening for five consecutive days. Before the extract administration the blood samples from patient were analyzed. Platelets count (PLT), White Blood Cells (WBC) and Neutrophils (NEUT) decreased from 176×10(3)/µL, 8.10×10(3)/µL, 84.0% to 55×10(3)/µL, 3.7×10(3)/µL and 46.0%. Subsequently, the blood samples were rechecked after the administration of leaves extract. It was observed that the PLT count increased from 55×10(3)/µL to 168×10(3)/µL, WBC from 3.7×10(3)/µL to 7.7×10(3)/µL and NEUT from 46.0% to 78.3%. From the patient feelings and blood reports it showed that Carica papaya leaves aqueous extract exhibited potential activity against Dengue fever. Furthermore, the different parts of this valuable specie can be further used as a strong natural candidate against viral diseases.
1

11 June 2016 in Applied Biochemistry and Biotechnology
Verified
Journal Article
Closed access
PDF file
Hina FazalHina Fazal
Hina Fazal
Bilal Haider AbbasiBilal Haider Abbasi
Bilal Haider Abbasi
Ahmad NisarAhmad Nisar
Ahmad Nisar
MAMohammad Ali
Mohammad Ali
1

1 January 2016 in Journal of Photochemistry and Photobiology B: Biology
Verified
Journal Article
Closed access
NANaveed Ahmad
Naveed Ahmad
ARAbdur Rab
Abdur Rab
Ahmad NisarAhmad Nisar
Ahmad Nisar
1

1 June 2016 in Journal of Photochemistry and Photobiology B: Biology
Verified
Journal Article
Closed access
Hina FazalHina Fazal
Hina Fazal
Bilal Haider AbbasiBilal Haider Abbasi
Bilal Haider Abbasi
Ahmad NisarAhmad Nisar
Ahmad Nisar
SASyed Shujait Ali
Syed Shujait Ali
FAFazal Akbar
Fazal Akbar
FKFarina Kanwal
Farina Kanwal
1

6 June 2011 in Toxicology and Industrial Health
Verified
Journal Article
Closed access
PDF file
Ahmad NisarAhmad Nisar
Ahmad Nisar
Hina FazalHina Fazal
Hina Fazal
IAIftikhar Ahmad
Iftikhar Ahmad
Bilal Haider AbbasiBilal Haider Abbasi
Bilal Haider Abbasi
Mentha species are used in every day life in various food items. These species produce valuable secondary metabolites that scavenge toxic free radicals. Toxic free radicals can cause different diseases in the human body. In the present study free radical scavenging potential (1,1-diphenyl-2-picrylhydrazyl scavenging activity) in nine Mentha species were investigated to evaluate and explore new potential sources for natural antioxidants. The activity was performed after different time intervals with incubation period of 30 minutes. The methanolic extracts revealed that significantly higher activity (82%) was observed in Mentha suaveolens, followed by Mentha longifolia (79%), Mentha officinalis (76%) and Mentha piperita, Mentha pulegium, Mentha royleana (75%), respectively. Significantly same activity was observed in Mentha arvensis and Mentha spicata. Lower activity was observed in Mentha citrata (64%). The present study revealed that these species can be used as natural antioxidants.
1

27 March 2018 in IET Nanobiotechnology
Verified
Journal Article
Open access
PDF file
BGBushra Ghazal
Bushra Ghazal
SSSumaia Saif
Sumaia Saif
KFKashif Farid
Kashif Farid
AKAdnan Khan
Adnan Khan
SRSapna Rehman
Sapna Rehman
Ahmad NisarAhmad Nisar
Ahmad Nisar
Nanotechnology is one of the advance technologies that almost found implications in every field of science. The importance is due to the unique properties of nanoparticles. In this study, bimetallic alloys of copper (Cu) and gold (Au) were tested in submerge root cultures of Stevia rebaudiana for production of biomass and secondary metabolites. A known amount of inoculum roots were submerged in liquid Murashige and Skoog medium containing combination of naphthalene acetic acid (NAA; 0.5 mg l −1 ) and different ratios of nanoparticles (NPs). NAA augmented medium was used as control. The addition of nanoparticles (30 µg l −1 ) stimulated biomass accumulation (1.447 g/flask) on 27th day of log phases. The maximum total phenolics content (TPC; 16.17 mg/g‐DW) and total flavonoids content (TFC; 4.20 mg/g‐DW) were displayed using AuCu‐NPs (1:3) and NAA. The same combinations enhanced total phenolic production (TPP; 116 mg/L) and total flavonoid production (TFP; 29.5 mg/L) in submerged cultures. A strong correlation was observed between phenolics, flavonoids and dry biomass. Moreover, maximum 1, 1‐diphenyl‐2‐picrylhydrazyl (DPPH) activity of 79% was displayed by addition of AuCu (1:3) nanoparticles. In conclusion, nanoparticles application has shown a positive effect in enhancing biomass and secondary metabolites production in adventitious root cultures of Stevia rebaudiana .
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