Finding Immunologically Related Bm86 Molecules in Hyalomma Anatolicum Anatolicum by Monoclonal Antibody Against Bm86

Ticks are widely distributed around the world and they are greatly important for human and livestock as a vector of serious infectious diseases. Lyme disease, Crimean Congo fever as well as Theileriosis and Babesiosis are amid major diseases transmitted by ticks to both human and animals respectively. Despite great success in introduction of Bm86 based vaccines (Gava

Recovery of Natural Antioxidants from Fruit Juice Industry Residuals by Ultrasound-Assisted Extraction and Response Surface Methodology

Fruit processing industries produce by-products that are good sources of natural antioxidants. These residuals are non-toxic and available in large quantities. A central composite design (CCD) and response surface methodology (RSM) were used to optimize experimental conditions. The processing variables were solvent type, solvent to solid ratio, ethanol concentration, temperature, and time. The responses were total phenolic content (TPC), scavenging activity of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical, and yield. The optimal conditions were 70% ethanol— water mixture as a food grade solvent, temperature of 35 °C and extraction time 60 min for obtaining extracts with maximum of total phenolic content. Predicted values for total phenolic content in pear, apricot, and peach were 24.7, 19.3, and 10.4 mg gallic acid equivalents per 100 g fruit residual, respectively

Melatonin Protects Mouse Type A Spermatogonial Stem Cells against Oxidative Stress via The Mitochondrial Thioredoxin System

Objective: Mitochondrial oxidative stress is an important factor in infertility. The mitochondrial thioredoxin systemplays an important role in this condition. N-acetyl-5-methoxy tryptamine (melatonin) plays a role in reducing oxidativestress and apoptosis in spermatogonial stem cells (SSCs). In this study, we explore the probable protective effects ofmelatonin on the mitochondrial thioredoxin system [thioredoxin 2 (Trx2)/Txnip] in SSCs under oxidative stress.Materials and Methods: In this experimental study, SSCs were co-cultured two-dimensionally (2D) with Sertoli cellsin DMEM culture medium that contained 10% fetal bovine serum (FBS), 1% antibiotics, and 10 ng/ml glial cell-derivedneurotrophic factor (GDNF) for 30 days. The cultured cells were subsequently divided into four groups: control; melatonin(250 μM, 24 hours); melatonin (250 μM, 24 hours)+hydrogen peroxide (H2O2, 50 μM, 24 hours); and H2O2 (50 μM, 24hours). Intracellular reactive oxygen species (ROS) production was determined by flow cytometry. Malondialdehyde(MDA) levels were measured by Fluorometry. The expressions of apoptotic and antioxidant genes and nuclear factorerythroid 2-related factor 2 (Nrf2), Trx2, and nicotinamide nucleotide transhydrogenase (NNT) proteins were determinedby quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. Adenosine triphosphate (ATP) levelswere measured by fluorometry.Results: Melatonin reduced H2O2-induced ROS levels and apoptosis in the SSCs. Melatonin also increased mRNAexpression of Nrf2, Trx2, NNT, Sirtuin 3 (Sirt3), and decreased mRNA expression of Txnip, and increased proteinexpressions of Nrf2, Trx2, NNT thereby increasing activity of the mitochondrial thioredoxin system. In addition, melatoninincreased ATP levels.Conclusion: Melatonin increased Trx2 expression through the Nrf2 pathway. This study suggests that melatonin mayprotect SSCs from oxidative stress in diseases related to infertility

Phonological change of vowel length in Farsi

Phonological change of vowel length in Farsi Author / Authors : Reza Heidarizadi Page no. 50 - 55 Discipline : Persian Linguistics/language Script/language : Roman/English Category : Research paper Keywords: Farsi vowels, vowel length, Compensatory lengthenin

Assessing the desertification trend using neural network classification and object-oriented techniques (Case study: Changouleh watershed - Ilam Province of Iran)

Desertification consists of decline in production and ecological activities, which may happen due to either natural or unnatural (human) factors.This phenomenon is more evident in arid and semi-arid areas. The aim of this study is to assess the desertification trend using neural network classification and object-oriented techniques in Changouleh watershed which covers an area of 9949 hectare and is located in the south of Ilam province. For this study, TM and ETM+ satellite images of 1984 and 2013 were used. After conducting geometric and atmospheric corrections, images were classified using two neural network and object-orientedalgorithms. Moreover, to evaluate the accuracy and control the correctness of the obtained maps, typical parameters such as Kappa coefficient, the Confusion matrix, and stability of the classification were extracted for assessing the accuracy. The results show that most changes are related to increase in bare lands and decrease in poor and fair rangelands; therefore, approximately 18% of these areas has turned into desert. The results of evaluation of maps correctness show that these two methods are of high accuracy, but the object-oriented approach with Kappa coefficient (94%) and overall accuracy (96.26 %); in addition to being able to detect and categorize more classes, has a high accuracy compared to neural network method

The Effect of Silybinin on the Expression of Vascular Endothelial Growth Factor (VEGF) and Integrin-linked kinase (ILK) in the Olfactory Ensheathing Cells under Normal and High Glucose Conditions

Background and Aim: Diabetes is a metabolic disease with high blood sugar levels. Olfactory ensheathing cells (OECs) are able to express various growth factors and integrin-linked kinase (ILK) plays an important role in regulating various processes of cells. In this study, we investigated the effects of silybinin on the expression of vascular-endothelial growth factor (VEGF) and ILK under normal and high glucose conditions in OECs. Materials and Methods: In this study, OECs were extracted from the olfactory mucosa of neonatal rats and cultured. Low (1,5M) and high (50,75 µM) concentrations of silybinin were added to the cell culture media under normal and high glucose conditions. At the end of the study, we measured the expression of VEGF and ILK proteins using western blot technique. Data were analyzed by ANOVA test. Results: Under high glucose conditions, low concentrations of silybinin maintained expression and at high concentrations silybinin caused a dose-dependent decrease in ILK significantly. However, under high glucose conditions, low concentrations of silybinin significantly decreased expression of VEGF but high concentrations of silybinin caused a significant dose-dependent increase in VEGF expression. Conclusion: High glucose condition increased ILK and VEGF expression in the OECs, and treatment with lower concentrations of silybinin maintained ILK expression and decreased VEGF expression. Therefore, it seems that lower concentrations of silybinin can be effective in protecting cells from cytotoxicity due to diabetes hyperglycemia by stabilizing ILK and reducing VEGF levels. © 2018 the Author (s)

Evaluating Chondroitin Sulfate and Dermatan Sulfate Expression in Glial Scar to Determine Appropriate Intervention Time in Rats

Introduction: The proteoglycans of the extracellular matrix increases in the glial scar during spinal cord injury and significantly affects the inhibition of axonal regeneration. Methods: The results of injury therapies are limited due to the lack of identifying a timely therapeutic intervention. The present study aimed to investigate the glial scar Chondroitin Sulfate (CS) and Dermatan Sulfate (DS) levels at different post-injury times to determine the appropriate time for therapeutic intervention. Results: By this experimental study, 72 Wistar rats were randomly divided into 12 groups, as follows: control, sham, injured animals at 1, 2, 4, and 8 days, as well as 2, 4, 8, 12, 16, and 20 weeks post-injury. The animals in the injured groups were contused in the T10 segment of the spinal cord. The motor function of animals was assessed using the Basso, Beattie, and Bresnahan (BBB) test. Besides, the histological assessment was performed using Luxol Fast Blue and Bielshovisky Staining. The CS and DS levels of lesions were measured using the Enzyme-Linked Immunosorbent Assay (ELISA) method. Conclusion: The motor function assessment indicated a relative recovery over time. Histological results confirmed some regeneration in the injury site at 20 weeks post-injury. The ELISA results demonstrated a much higher level of DS than that of CS in the glial scar. Considering high levels of DS, compared to CS in the glial scar and its reduction from second weeks after SCI onwards, the second week after SCI seems to be the best time for therapeutic interventions in terms of scar permeability

Effect of olfactory ensheathing cells (OECs) transplantation on functional recovery in acute phase of spinal contused rats

Introduction: Spinal cord injuries (SCI) lead to permanent irreversible functional deficits.  Poor prognosis of patients is the motivation of searching a treatment for the chronic injury.  Planting stem cells provides us with a promising strategy. In the meanwhile, the use of olfactory ensheathing cells (OECs) has shown very good results.  This study aims at evaluating the effect of transplanted OECs on functional recovery of acute SCI in rats. Materials and methods: In this study, eighteen adult male Wistar rats weighting approximately 210 ± 10 gr were used to study spinal cord injury. They were randomly divided into four groups: Sham (n = 3), Control (n = 6), Vehicle (n=3) and Treatment (n=6). In the Sham Group, only laminectomy was performed in the area of T9 spinal cord. In three groups of Control, vehicle and Treatment, after laminectomy, spinal cord contusion model was performed using the Weight drop technique. Immediately after the injury, 10μl Dulbecco's Modified Eagle Medium (DMEM) alone or with 106 cells were injected to vehicle and Treatment Group animals. For culturing cells, the olfactory mucosa of 7-day-old male Wistar rats was used. Motor function of animals in all groups, was evaluated in the first 48 hours daily and then weekly for eight weeks. Results: Comparing the results of the second to eighth week of the study showed significant differences in the group receiving the OECs with the control group (P<0.05). Conclusion: The results indicate a positive influence of the olfactory ensheathing cells in functional improvement of spinal cord injury in the acute phase of injury