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116 articles for “Biological activity”
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Research ArticleOpen accessIn the abstractOptimization of Hydrodistillation Extraction by Response Surface Methodology and Evaluation of the Antioxidant and Antimicrobial Activities of Essential Oils from Phragmites communis (Cav) TrinXin-Tong Zou, Hong-Yuan Ma, Yu-He Li et al.The principal objectives of this study encompass three distinct aspects: firstly, to streamline the extraction process of Phragmites communis (Cav) Trin essential oil; secondly, to systematically analyze the essential oil’s chemical composition; and finally, to evaluate biological activity. Through the system optimization experiment, the optimal extraction process was determined: the crushing size was set to 10 mesh, the total solid-liquid … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 3 · 6 Jan 2026 · 2,320 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Overview of the Antimicrobial Activity of Some Microbial EnzymesAkram N. Salah, Hayam Atallah AlwabsiEnzymes are substances produced by living organisms that are used to catalyze some biological and biochemical reactions as they either catalyze some types of polysaccharides and proteins or lyse complex materials such as polymers and lipids. Microbial enzymes are defined as the enzymes that can be extracted and purified from bacterial strains such as Bacillus spp., Pseudomonas spp., Streptomyces, or … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 2 · 11 Jun 2024 · 6,091 accessesView PDFCite
Research ArticleOpen accessIn the abstractProtective Role of Ganoderma lucidum Polysaccharides Against Stress Induced by Heavy Metals in Caenorhabditis elegansHuixiu Ma, Dehui Dai, Guicai Chen, Weilian HuAli, H., Khan, E., & Ilahi, I. (2019). Environmental Chemistry and Ecotoxicology of Hazardous Heavy Metals: Environmental Persistence, Toxicity, and Bioaccumulation. Journal of Chemistry, 2019, 6730305. https://doi.org/10.1155/2019/6730305 Aljerf, L., & Aljerf, N. (2023). Food products quality and nutrition in relation to public. Balancing health and disease. Progress in Nutrition, 25(1), e2023024. https://doi.org/10.23751/pn.v25i1.13928 Aljerf, L., Williams, M., Ajong, A. B., Onydinma, … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 2 · 18 May 2024 · 6,949 accessesView PDFCite
Research NotesOpen accessIn the abstractAdvance in the Diagnostics of Mare Pregnancy and Assessing the Activity of Gonadotropin in Serum of in-Foal MareKaliya Kudaikulovna Yerkekulova, Nuradin Alibayev, Yusupzhan Artykovich Yuldashbayev et al.Research works on the improvement of mare pregnancy diagnostics and evaluation of biological activity of gonadotropic preparation based on the use of enzyme-linked immunosorbent assay were carried out. As the result of diagnostics and evaluation, effective producers as donors for obtaining gonadotropic preparation among the Kazakh population of mares with type “zhabe”, the animal units of 60 days with their … …OnLine Journal of Biological Sciences, Vol. 24, Issue 3 · 7 Mar 2024 · 4,830 accessesView PDFCite
Research ArticleOpen accessIn the abstractMonitoring of the Saiga Population: Balancing Nature and AgricultureZhanbolat Ibraibekov, Saule Atshabarova, Ermek Gabdullin et al.The rapid recovery of the Saiga population (Saiga tatarica) in Kazakhstan represents a significant conservation success; however, it has simultaneously generated complex ecological and socio-economic challenges in steppe ecosystems. This study evaluates the relationships between Saiga population density and pasture ecosystem condition and identifies ecological thresholds relevant to balancing biodiversity conservation and sustainable agricultural land use. The research is based … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 27 Oct 2026 · 50 accessesView PDFCite
Research ArticleOpen accessIn the abstractMorphological and Structural Reaction of Avena sativa Seedlings to the Effects of Nano and Microparticles of ZincArailym Serikbai, Aidar Aitkulov, Anna Stanco et al.Kazakhstan has a well-developed mining and metallurgical industry, which produces macroand nanoparticles of heavy metals, including zinc emitted to the environment. The nanoscale particles have a different biological activity, which requires some additional research. The effects of various concentrations of zinc macroparticles and nanoparticles on the anatomical structure of oat seedlings (Avena sativa L.) and their accumulation in vegetative organs … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 9 Jul 2024 · 4,410 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Atorvastatin on Oxidized Low-Density Lipoprotein-induced Proliferation, Apoptosis, and Matrix Metalloproteinase-9 Expression in Human MacrophagesBensheng Liu, Huifan Li, Yan Wang, Li ZhangAtorvastatin (ATV), an HMG-CoA reductase inhibitor, is utilized in the treatment of atherosclerotic diseases. Mononuclear Macrophages (MMs) are critical immune cells involved in atherosclerosis progression, participating in processes such as foam cell formation, cytokine secretion, and the development of fibrous cap and lipid core. To further elucidate the mechanism by which ATV exerts its therapeutic effects on atherosclerosis through the … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 3 · 18 Nov 2025 · 2,136 accessesView PDFCite
Research ArticleOpen accessIn the abstractAlgorithmization of Electrostatic Model for Solving the Direct Problem of ElectrographyTagirbek Gaidarbekovich Aslanov, Naur Zamirovich Ivanov, Shamil Shamil`evich Anudinov, Tatiana Vladimirovna KarlovaAn analysis of the creation and implementation of algorithms to control cardiological processes occurring in the cardiovascular system using software and hardware diagnostic systems is a required activity. This study considers ways to improve the methods of medical data processing using electronic diagnostic systems, relying on existing methods of mathematical simulation of human body states. This study describes the development … …Journal of Computer Science, Vol. 21, Issue 4 · 7 Mar 2025 · 5,337 accessesView PDFCite
Research ArticleOpen accessIn the abstractMetabolic Potential Versus Genome SizeAtanas Todorov Atanasov, Dimitar Todorov ValevAlberch, P. (1983). Development and Evolution: Embryos, Genes, and Evolution. The Developmental-Genetic Basis of Evolutionary Change. Science, 221(4607), 257–258. https://doi.org/10.1126/science.221.4607.257 Andrews, C. B., Mackenzie, S. A., & Gregory, T. R. (2009). Genome size and wing parameters in passerine birds. Proceedings of the Royal Society B, 276(1654), 55–61. https://doi.org/10.1098/rspb.2008.1012 Atanasov, A. T. (2005). The linear alometric relationship between total metabolic energy … …Physics International, Vol. 13, Issue 1 · 15 Jun 2022 · 7,233 accessesView PDFCite
Literature ReviewOpen accessIn the abstractOptimization of Extraction of Cannabinoids and Flavonoids Substances from Influence Cannabis sp. and their Biological Activities before and after DecarboxylationOlga Kronusová, Michala Piklová, Kristýna Šírová et al.Inflorescence of eight different varieties of Cannabis sp. (3 hemp varieties and 5 medical cannabis varieties) were subjected to extraction with n-hexane or ethanol as representatives of non-polar and polar solvents. Crude extracts were either used directly or after decarboxylation of cannabis acids for measurement of selected biological activities-cytotoxicity against carcinogenic line B16 (musculus skin melanoma cells), cytotoxicity against Human … …American Journal of Applied Sciences, Vol. 19, Issue 1 · 26 May 2022 · 6,741 accessesView PDFCite