Publications by authors named "Hassan Qazi"

Article Synopsis
  • - Wall. ex Griseb., commonly known as "Wild yam" or "Elephant foot," is an endangered plant from the Dioscoreaceae family, valued for its edible nature and rich nutritional profile including proteins, amino acids, vitamins, and minerals.
  • - This plant has traditional medicinal uses and is known for its bioactive compounds, which offer protective effects against various inflammatory conditions and have demonstrated antibacterial, antioxidant, and anti-inflammatory properties.
  • - Wild yam is also significant in the medical field for its applications in treating cardiovascular diseases, skin diseases, cancer, and disorders of the central nervous system, making it important for both health and commerce.
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Chalcones are chemical scaffolds found in natural products, particularly in plants, and are considered for structural diversity in medicinal chemistry for drug development. Herein, we designed and synthesised novel acetamide derivatives of chalcone, characterizing them using H NMR, C NMR, HRMS, and IR spectroscopic methods. These derivatives were then screened against human cancer cells for cytotoxicity using the SRB assay.

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The increasing global concern of antimicrobial resistance and shortage of new antimicrobials necessitates exploring untapped terrestrial environments for new bioactive microbiome diversity. The low-temperature and oligotrophic North Western Himalaya (NWH) region has a vast diversity of Streptomyces with potential antimicrobial properties that remain largely unexplored. This study evaluates the diversity of culturable Streptomyces from high-altitude NWH and their potential as a source of new antimicrobials through genus-specific isolation and identification.

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Objectives: L. (polygonaceae) is one of the most important species of genus widely utilized for the treatment of various human diseases. Most parts of the plant species like leaves, shoots and roots are found to be rich in many pharmacologically important bioactive constituents that are useful against many diseases like acariasis, eczema, diarrhea, constipation, diuretic, astringent, refrigerants and various types of skin diseases.

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This article aims to investigate the analytical nature and approximate solution of the radiated flow of electrically conductive viscous fluid into a porous medium with slip effects (RFECVF). In order to build acceptable accurate solutions for RFECVF, this study presented an efficient Levenberg-Marquardt technique of artificial neural networks (LMT-ANNs) approach. One of its fastest back-propagation algorithms for nonlinear lowest latency is the LMT.

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Rumex abyssinicus Jacq. is a perennial medicinal herb widely used in traditional medicine to treat many diseases. Phytochemicals of the plant were isolated using column chromatography and thin layer chromatography techniques.

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Medicinal plants are being used as an alternative source of health management to cure various human ailments. The healing role is attributed to the hidden dynamic groups of various phytoconstituents, most of which have been recorded from plants and their derivatives. Nowadays, medicinal plants have gained more attention due to their pharmacological and industrial potential.

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Potato is constantly exposed to various kinds of phytopathogens which cause diseases during the developmental stage and post-harvest storage. This investigation was designed to assay the anti-phytopathogen activity of bacterial endophytes and their suppressive effects on rot disease in potato. The study also aimed to screen isolates for their plant growth-promoting traits and establish GC-MS-based metabolite profile of the potent isolate.

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The disclosed study reveals isolation, characterization and anticancer evaluation of . The extracts and isolated compounds were used for cytotoxic activity against (lung (A549), pancreatic (MIAPaCa), colon (HCT-116), breast (MDA-MB-231) and breast (MDA-MB-468) cell lines. The extracts were screened for cytotoxicity using MTT colorimetric assay.

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The researchers are continuously working on nanomaterials and exploring many multidisciplinary applications in thermal engineering, biomedical and industrial systems. In current problem, the analytical simulations for performed for thermos-migration flow of nanofluid subject to the thermal radiation and porous media. The moving wedge endorsed the flow pattern.

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In the present study, we report herein the isolation of cadinane-type sesquiterpenoid, tatarinowin A (ACH-6), and pentadecanoic acid (ACH-8) from petroleum ether extract of rhizome of (Acoraceae) along with 6 other known compounds in this species. It is pertinent to mention here that this is the first report to stain these compounds in which dereplication approach based on GC-MS was applied to target unknown compounds ACH-6 and ACH-8 in Derelpication approaches based on GC-MS is very useful technique in the area of drug discovery and have eminence potential to identify known and unknown compounds present in extracts of medicinal important plants. This technique can be used to expedite the process of purification of unknown compounds from different matrixes.

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Rice (Oryza sativa L.) is one of the most important staple foods consumed in many countries of the world. It is mostly consumed in developing countries where different chemical fertilizers are used to improve the productivity of the crop plant.

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Many people in different African countries are suffering from different diseases many of which result in serious life threat and public health problems with high risk of infection and mortality. Due to less accessibility and high cost of modern drugs, people of this continent often depend on traditional medicine using medicinal plants to manage the diseases. Africa has large tropical rain forests, which are very rich in medicinal plants.

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Article Synopsis
  • Bioactive metabolites from Actinobacteria are key sources of current antimicrobial drugs, particularly against Mycobacterium tuberculosis (Mtb).
  • Despite various screening methods aimed at Mtb, traditional diffusion assays often fall short in identifying new compounds.
  • A multidisciplinary approach that integrates new technologies and explores unexplored Actinobacteria may enhance the discovery of novel therapeutic leads against Mtb.
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Natural products have extensively contributed toward the discovery of new leads for Alzheimer's disease. During our search for new inhibitors of cholinesterase enzymes from natural sources, the ethyl acetate (EtOAc) extract of Jacq was identified as a dual cholinesterase inhibitor with IC values of 2.7 and 11.

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Purpose: Despite the fact that hyper-activation of Wnt/β-catenin signaling pathway has been seen in many cancers, including liver, colorectal and lung carcinoma, no small molecule inhibitors are available that specifically target this pathway. In this study, we analyzed the impact of dinactin (DA), an antibiotic ionophore produced by Streptomyces species, as an effective small molecule targeting Wnt/β-catenin signaling pathway in cancer cells.

Methods: We performed MTT assays to investigate cell viability and proliferation after exposure to small molecules.

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Current long duration treatment options and the emergence of drug resistance in tuberculosis (TB) have led to renewed interest in discovery of novel anti-tubercular agents or the scaffolds exhibiting enhanced efficacy with current anti-TB drugs. Herein, dinactin, a potent bioactive macrotetrolide isolated from Streptomyces puniceus AS13, was evaluated against Mycobacterium tuberculosis H37Rv and other susceptible and drug-resistant clinical isolates of M. tuberculosis.

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In the present study petroleum ether, chloroform and methanolic extracts of Oscimum sanctum were prepared using soxhlet extractor. The extracts were evaluated for antibacterial activity against one Gram positive (Staphylococcus aureus) and one Gram negative (Escherichia coli) strain. The activity of the extracts was compared with the known antibacterial drugs, Oflaxacin and Penicillin G.

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Article Synopsis
  • - A novel actinobacterial strain, Streptomyces puniceus strain AS13, was isolated from the Northwestern Himalayas, leading to the discovery of bioactive metabolites, including Dinactin and another compound characterized through advanced spectroscopic techniques.
  • - Dinactin demonstrated strong antimicrobial properties against various bacterial pathogens, including Mycobacterium tuberculosis, with very low minimum inhibitory concentration (MIC) values.
  • - The compound also showed significant anti-tumor activity in multiple human cancer cell lines while exhibiting low toxicity to normal cells, suggesting potential as both an antibiotic and antitumor agent.
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Bovine mastitis is globally recognized as the most common and costly disease affecting dairy herds. The disease causes huge financial losses to dairy industries by reduced yield and milk quality, deaths and culling of affected cows and also by associated treatment costs. The disease occurs due to invasion of the mammary glands by pathogenic bacteria followed by their multiplication in the milk producing tissues.

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Endophytes represent a hidden world within plants. Almost all plants that are studied harbor one or more endophytes, which help their host to survive against pathogens and changing adverse environmental conditions. Fungal and bacterial endophytes with distinct ecological niches show important biological activities and ecological functions.

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The aim of the present study was to isolate and evaluate the antimicrobial potential of soil actinomycetes of Kashmir Himalayas. The secondary metabolites of actinomycetes are the prominent source of antibiotics. A total of 121 morphologically different actinomycete strains were isolated and screened for antimicrobial activity against various human pathogens.

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A new eudesmane sesquiterpenoid (1), and a new homologue of virginiae butanolide E (2) along with butyl isobutyl phthalate (3) were isolated from, actinomycete-Lentzea violacea strain AS08 isolated from north western Himalayas by stressing on modified one strain-many compounds (OSMAC) method. The structures of the new compounds were elucidated by extensive spectroscopic analyses including 1D, 2D NMR along with HR-ESI-MS and FT-IR data. Herein, a distinctive method was added for inspecting secretory profile of the strain by quantification of extract value of cell free supernatant in different types of culture media fallowed by HPLC profiling of respective extracts, which revealed a highly altered metabolic profile of the strain and formed the base for the selection of media.

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