Algerian journal of Biosciences <p>Algerian journal of Biosciences (AJB) is published by Department of biology faculty of sciences Faculty of Natural Sciences and Life University of Echahid Hamma Lakhdar, Algeria. AJB is a biannually, international, open access, journal dedicated to various disciplines of biology, Biology, Environmental and Agricultural Sciences. AJB is an international means of interaction between researchers, academics and employees in various areas of neighborhoods. AJB publishes manuscripts (Original research, review articles, Short communication, Case reports, and letter to editor) on original work, either experimental or theoretical.</p> <p><strong>ISSN-E:</strong> 2716-9375 (Online Version). <span style="font-weight: bolder;">ISSN-P:</span>2773-2916 (Print Version).</p> en-US (Zeid Alia) (Djilani Ghemam Amara ) Fri, 22 Dec 2023 11:25:29 +0100 OJS 60 Allelopathic Influence of Rosmarinus officinalis Aqueous Extracts on Barley Plants <table width="650"> <tbody> <tr> <td width="472"> <p>This is an investigation of Allelopathic Influence of Rosmarinus officinalis Aqueous Extracts on Barley Plants. All the samples are prepared from Libyan varieties of these two species. Rosmarinus officinalis specimens were gathered, air-dried, and ground, yielding a 20% aqueous extract. Dilutions (16%, 12%, 8%, 4%) and a control (0% distilled water) were prepared. Dilution followed the equation C2×V2=C1×V1. For example, to achieve 16%, 12 ml of the extract mixed with 3 ml of distilled water. Petri dishes, cleaned meticulously, held five barley seeds each, receiving 5 ml of extract or distilled water. After a week in the lab with two irrigations, root and stem lengths were measured. Statistical analyses, including one-way ANOVA and multiple comparisons, were conducted using SPSS 28 to interpret the extract's impact. The results of the experiment revealed a significant difference in Barley root measurements among the experimental conditions, as evidenced by a significant F-statistic (F(4, 10) = 15.58, p &lt; .001). The Between Groups comparison, with a sum of squares of 38.85 and 4 degrees of freedom, resulted in a mean square of 9.71. Results also revealed a significant difference in barley stem measurement among the experimental conditions, as indicated by a highly significant F-statistic (F(4, 10) = 45.777, p &lt; .001). These differences indicate that the presence of Rosmarinus officinalis Weed extract, under various concentrations and conditions, distinctly influenced (negatively) the growth parameters of barley plants.</p> </td> </tr> </tbody> </table> Muoftah A M Bataw Copyright (c) A comprehensive review of natural products as a potential antiviral agent against SARS-CoV-2: based on previously known HCoVs inhibitors <p>At present, coronaviruses remain without specific antiviral therapies, elimination these viral infections seem difficult. Recently, SARS-CoV-2 a new human coronavirus (HCoVs), has emerged and spread rapidly throughout the world, causing a pandemic of acute infectious pneumonia. Natural products may serve as an essential source for discovering and developing effective preventive/therapeutic strategies against coronaviral infections. In this review, we have summarized the natural products that showed inhibitory action against host cell and HCoVs proteins involved in viral life cycle, including proteins implicated in viral entry (S protein, ACE2 and host cell protease), viral replication (3CLpro, PLpro, RdRp and helicase), assembly and release of virions (N protein and 3a protein). A total 79 plants species belonging to 48 families, 134 isolated compounds and 26 crude extracts were found. The plant species from the families, including Polygonaceae, Fababceae, Amaryllidaceae, Apiaceae and apocynaceae have received more scientific attention than others. Analysis of the reports indicated that the phenolic compounds make up majority of chemical groups, followed by terpenoids, alkaloids and other compounds. The replication inhibitors have the most number of different HCoV molecular targets followed by virale entry inhibitors. 3CLpro and PLpro targets has the highest number of natural product inhibitors followed by binding S protein to receptor. However, many others natural products inhibitors with multi-target and unclear mechanisms of action are summarized in this review. Due to homology in epidemiology, genomics and pathogenesis of HCoVs and a highly conserved sequence and structural similarity of viral proteins between HCoVs, it is reasonable to consider these natural products as a potential antiviral agent for the inhibition of SARS-CoV-2infection.</p> boualem ben amar aissa boualem Copyright (c) The use of vitreous cardio-renal biochemical parameters as a discriminant of brackish water drowning <p><strong>Background:</strong> Drowning is among the major causes of unintentional deaths with an annual estimate of about 372,000 as reported by the World Health Organization (WHO).&nbsp; Due to the empirical difficulties associated with discriminating true drowning from postmortem drowning, criminals now commit murder and disguise it as unintentional drowning. Drowning can occur in any kind of water body either artificial or natural. The type of water body associated with the drowning is crucial in the discrimination of postmortem drowning. Freshwater, brackish water, or saltwater drowning could present varied postmortem chemistries. Therefore, this study aimed to use some selected vitreous biomarkers and biochemical parameters in the discrimination of postmortem brackish water drowning. The sample size of this study was validated using Mead’s formula with a total of sixteen (16) rabbits employed. The study comprised four groups of four rabbits each. They include the control group (CD), the chloroform death group (CFD), the postmortem death drowned group&nbsp; (PDD), and the brackish drowned death (BDD). Statistical Package for Social Sciences (SPSS) program (SPSS Inc., Chicago, IL, USA; Version 18-21) was the choice statistical package. In a similar vein, One-Way ANOVA (LSD-Pos Hoc) was the choice tool for the vitreous data analysis.</p> <p><strong>Results:</strong> The study revealed elevated vitreous creatinine, uric acid, potassium, and chloride concentrations in death resulting from brackish water drowning. Other vitreous parameters were stable and could form part of the panel of laboratory investigations of brackish water drowning. <strong>Conclusions:</strong> The findings of this study could serve as a hallmark in defining brackish water drowning death.</p> <p>&nbsp;</p> <p>&nbsp;</p> Eni-yimini Agoro, D.E. Kpomah Copyright (c) The Prevalence of Parvovirus in Dog Faeces: A Critical Analysis of Research Designs, <p>No Abstract</p> KIKELOMO MOJISOLA IWALOYE Copyright (c) A CRITICAL APPRAISAL OF THE WELFARE STANDARDS, LIMITATIONS, AND SUSTAINABILITY OF PIG WELFARE IN THE UK. <p>No abstract</p> KIKELOMO MOJISOLA IWALOYE Copyright (c)