Written by Kataru Vishnuvardhan
Published On Issue 1 Vol 11, 2020
Green nanoparticle synthesis methods have immense therapeutic applications due to their biocompatibility and lack of toxicity. We report the synthesis of silver nanoparticles (AgNPs) using the leaf extracts of traditional medicinal plant Aeschynomene indica (Fabaceae). The color change from yellow to brown and absorption peak at 447 nm indicated the synthesis of AgNPs. High-resolution transmission electron microscopy images exhibit polydisperse, spherical AgNPs in the size range of 10-24nm. X-ra
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Written by Sara A. Hatem
Published On Issue 1 Vol 11, 2020
Aim: The aim of the study was to evaluate the levels of Interleukin IL-1β, TNFα, and VDB Protein in the serum of patients with chronic periodontitis. Materials and methods: Serum samples of 60 persons, aged 25-55 years with chronic periodontitis were collected as patients group; samples of serum were obtained from 30 healthy subjects aged 25-55 years as the control group. Interleukin IL-1β, TNF-α, and VDB protein levels were measured by enzyme-linked immune sorbent assay (E
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Written by Vo Nguyen Lam Uyen
Published On Issue 1 Vol 11, 2020
In this work, the Cu2O-ZnO nanocomposite having the high antibacterial activity was synthesized through the sol-gel method. The effects of calcination temperature and duration on the formation of Cu2O-ZnO composite were emphasized. The most suitable condition of calcination was found to be 500 oC and 2 hours. Synthesized Cu2O-ZnO nanocomposite was were characterized by powder X-Ray Diffraction, BET nitrogen adsorption isotherms, field emission scanning electron microscopy, and transmission elect
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Written by Tarangini Korumilli
Published On Issue 1 Vol 11, 2020
Xanthophyllomyces dendrorhous yeasts are capable of synthesizing carotenoid class astaxanthin pigment on agro-industrial wastes. The usefulness of fruit waste extract (FWE) as a sole source of energy for astaxanthin production was done using X. dendrorhous (MTCC No: 7536) and the Taguchi method of optimization technique was used to maximize pigment production conditions. Effect of key parameters like pH, temperature, and agitation was studied using L9 orthogonal array by three factor-three level
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Written by Noor H. Nasser
Published On Issue 1 Vol 11, 2020
Objective: The objective of this search is to design, and synthesize new mutual prodrugs in order to obtain synergistic antibacterial activity. Methods: The hydroxyl group of three antioxidants (menthol, thymol, and vanillin), was linked to chloroacetyl chloride through nucleophilic substitution reaction, to give intermediates (Ia-Ic), which were reacted with a carboxyl group of Gatifloxacin to form three final compounds (I-III) having ester linkage. Results: The Antibacterial activity effect of
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Written by Fariborz Roshangar
Published On Issue 1 Vol 11, 2020
Objectives: Learning is an essential challenge in nursing student’s education. Beneficent learning has a major impact on upbringing efficient nurses. However, one of the methods for achieving optimal learning is using combined strategies for education. Thus, the aim of this study was to assess the effect of case-based learning with or without conceptual mapping on nursing student’s critical thinking and academic self-efficacy. Material and Methods: The present semi-experimental study
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Written by Iniobong R. Inyang
Published On Issue 1 Vol 11, 2020
The aim of this study was to unveil the effect of Chloropyrifos on Oryclotagus cuniculus electrolytes and metabolites. Twenty-four of the probe organism (mean weight, 1.8 – 2.00kg) were acclimatized to laboratory conditions for 14 days and then exposed to varying concentrations of the toxicant (1.00mgl-1, 2.00 mgl-1 and 3.00 mgl-1) in a renewal bioassay technique for 14 days. Samples were collected and analyzed following standard protocol. Results of blood electrolytes (K+ and Na+) values
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Written by Sawsan Hassan Mahassni
Published On Issue 1 Vol 11, 2020
Saudi Arabia is one of the Middle Eastern countries with the highest prevalence of overweight and obesity in adults and especially in females. Overweight and obesity affect many systems in the body leading to increased mortality, morbidity, and risk for many diseases. This study aimed to determine the effects of overweight and obesity on the immune system cells, hematology, lipid profile, and C-reactive protein (CRP) concentration in 62 randomly chosen Saudi female university employees with an a
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Written by Nguyen D. Trung
Published On Issue 1 Vol 11, 2020
This investigation was done to synthesize silver nanoparticles (AgNPs) using Curcuma longa (C. longa) extract as a capping, and stabilizing, reducing agent. The impact of C. longa raw material/water ratio, extraction duration and temperature, the volume ratios of AgNO3 solution/C. longa extract, and AgNO3 concentration in the formation of AgNPs were evaluated. The obtained AgNPs were analyzed by UV-Vis spectroscopy, FTIR, X-ray diffraction pattern (XRD), energy-dispersive X-ray spectroscopy (EDX
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Written by Alzahrani N. H.
Published On Issue 1 Vol 11, 2020
L-asparaginase (L-asparagine amidohydrolase, E.C.3.5.1.1) is a supplementary cellular enzyme used as an anticancer substance. 31 Streptomyces strains isolated from rhizosphere of some plants in different regions of Saudi Arabia. The highest 11 Streptomyces isolates in L-asparaginase activity were selected for further molecular analysis based on differences in 16S rRNA gene sequence. Alignment analysis using the BLAST tools confirmed that all isolates are related to Streptomyces with a similarity
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Written by Amir Fadhil Dawood AL-Niaimi
Published On Issue 1 Vol 11, 2020
The Nanocomposites consist of graphene oxide (GO) nanosheets and Magnesium oxide (MnO2), with a weight ratio of 1:1 to the synthesized GO /MnO2. The synthesized samples were characterized using FT-IR, SEM. The adsorption of Congo red (CR) dye from aqueous solution onto GO/MnO2 NCs as adsorbent using the batch method were investigated under different laboratory conditions such as contact time, dose of GO/MnO2, temperature and initial concentration of CR dye. Adsorption isotherms are used to test
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Written by Hossein Mohammadi
Published On Issue 1 Vol 11, 2020
Different physical, chemical and biological methods can be used to remove ammonia from aquatic environments. For this study, we used a plexiglass MBBR reactor. The useful volume of the pilot was 30 liters, in which the fluid-filled up to 46 cm of the reactor. Inside the pilot, the Kaldnes K3 type movable media and the polyethylene type with a total surface area of 584 m2 / m3 were used. After the pilot was completed, the entire research was carried out in three steps: (1) Start-up of the system
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Written by Fawzia A. Alshubaily
Published On Issue 1 Vol 11, 2020
The fresh matter or extracts from Moringa Oleifera (MO) have antioxidant and protective effects against toxicants. The hepatoprotective effect of leaf aqueous extract was studied on cadmium-induced liver toxicity in albino rats. Thirty-six Wister rats were divided into six groups (n=6). Group I: was negative control received only distilled water, Group II: was the positive control received 11mg/kg of CdCl2, Group III and Group IV received 11mg/kg CdCl2, and concurrently treated with 250 mg/kg b.
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Written by Tran Boi An
Published On Issue 1 Vol 11, 2020
In this work, superabsorbent was synthesized by graft copolymerization reaction of maize bran (MB), acrylamide (AM) using N.N-methylene-bisacrylamide (MBA) as a crosslinker and ammonium persulphate (APS) as solution initiator. The effect of different MB/AAm ratios on adsorption capacity was investigated. Adsorbent composites were identified using a scanning electron microscope (SEM), Fourier transforms infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). An MB-based hydrogel compo
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Written by Abdulrahman Alasmari
Published On Issue 1 Vol 11, 2020
Many pharmacological and Pharmacognostical studies about medicinal plants such as Rumexnervosus and Dodonaea viscose revealed their medicinal actives and certain nutrient and non-nutrient substances where could protect and prevent the human body from several diseases. Several investigations on RumexnervosusandDodonaea viscose support their traditional use as drugs due to their medicinal actives against many diseases. Also, they attain great attention in the present world due to the side effects
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Written by Emad F. A. Aljarbou
Published On Issue 1 Vol 11, 2020
Background: Parkinson's Disease (PD) is considered a chronic progressive neurodegenerative disorder and it can affect both motor and nonmotor functions. Around one million Americans have the disease and 1-3% of the individuals who are older than 60 years of age of the general population are affected worldwide. The progression of PD, from the first damage of the nervous system cells to the appearance of clinical symptoms, takes a considerable long period. Therefore, it is very important to id
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Written by Abdulaziz S. Aldakhil
Published On Issue 1 Vol 11, 2020
Background: Acute trauma is a common cause of Spinal cord injury (SCI) that results in life-threatening and/or severely disabling injuries. Initial assessment of traumatic SCI is usually done through X-ray radiography and computed tomography (CT). Although spinal integrity could be sufficiently evaluated using CT scans to direct surgical interventions, the superior capabilities of magnetic resonance imaging (MRI). Objectives: In this paper, we will review the available literature discussing the
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Written by Bayan A. Almusailhi
Published On Issue 1 Vol 11, 2020
Background: Diabetic ketoacidosis (DKA) is an endocrinological emergency that occurs as a direct result of a total or relative deficiency of insulin and is potentially life-threatening. Lack of insulin results in attenuation of the other regulatory hormones. Objectives: In this paper, we will review the available literature discussing the features, diagnosis, and emergency management of DKA. Methodology: We conducted the literature search within the PubMed database using the keywords: “Ket
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Written by Arkan A. Alhassan
Published On Issue 1 Vol 11, 2020
Background: Pyelonephritis is a type of urinary tract infections (UTIs) that can cause severe systemic troublesome manifestations. Untreated cases of pyelonephritis can let the inflammation to damage the renal pelvis and its parenchyma. Also, an untreated infection may lead to sepsis, which can increase the rate of mortality. Objective: To review the published literature and provide an adequate review about evaluating and managing pyelonephritis properly. Method: PubMed database was used for art
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