Development of glial restricted human neural stem cells for oligodendrocyte differentiation in vitro and in vivo.

In this study, we have developed highly expandable neural stem cells (NSCs) from HESCs and iPSCs that artificially express the oligodendrocyte (OL) specific transcription factor gene Zfp488. This is enough to restrict them to an exclusive oligodendrocyte progenitor cell (OPC) fate during differentiation in vitro and in vivo. During CNS development, Zfp488 is induced during the early stages of OL generation, and then again during terminal differentiation of OLs. Interestingly, the human ortholog Znf488, crucial for OL development in human, has been recently identified to function as a dorsoventral pattering regulator in the ventral spinal cord for the generation of P1, P2/pMN, and P2 neural progenitor domains. Forced expression of Zfp488 gene in human NSCs led to the robust generation of OLs and suppression of neuronal and astrocyte fate in vitro and in vivo. Zfp488 expressing NSC derived oligodendrocytes are functional and can myelinate rat dorsal root ganglion neurons in vitro, and form myelin in Shiverer mice brain in vivo. After transplantation near a site of demyelination, Zfp488 expressing hNSCs migrated to the lesion and differentiated into premyelinating OLs. A certain fraction also homed in the subventricular zone (SVZ). Zfp488-ZsGreen1-hNSC derived OLs formed compact myelin in Shiverer mice brain seen under the electron microscope. Transplanted human neural stem cells (NSC) that have the potential to differentiate into functional oligodendrocytes in response to remyelinating signals can be a powerful therapeutic intervention for disorders where oligodendrocyte (OL) replacement is beneficial

Precautions in the Operating Room during the COVID-19 Pandemic

Corona is a respiratory virus that can cause death as well as many complications in recovering patients. Preventive and control measures to protect people who are exposed to the corona virus and contract it depend on the type of work performed and the risk of exposure to infected people and contamination of the workplace. Due to the non-necessity of performing non-emergency surgeries and taking precautionary measures for patients who are candidates for surgery and whose corona test is positive, various cases should be considered by the staff during the surgery. To prevent and manage aerosol dispersion, it is better to use a device for suctioning aerosol smoke during surgery, whether in open or closed surgeries (laparoscopy). Keywords: COVID-19, Operating room, Protocols, Surger

Comparative Efficacy of Bispectral Index Monitoring and Clinical Assessment in The Recovery of Patients Undergoing Open Renal Surgery: A Randomized, Double-Blind Study

Background and Aims: Maintaining the sufficient depth of anesthesia with an adequate anesthetic drug dosage in patients undergoingsurgery is one of the most significant issues. Inadequate depth of anesthesia can cause significant disturbances in hemodynamicparameters. In this study, clinical assessment and bispectral (BIS) index monitoring compare the depth of general anesthesiaand recovery time in patients undergoing open renal surgery.Method: In this double-blind, randomized, controlled trial, all patients undergoingopenrenal surgery were enrolledandrandomlydivided into a BIS group and clinical assessment group (control). In the BIS group, the electrodes of BIS monitoring system wereplaced on frontal and temporal lobes of the patient. The time of eye opening, verbal response to verbal stimulation, extubation time,the duration of stay in the recovery unit, the first-time of narcotic usage, and total dosage of intravenous narcotics were assessed in2 groups.Results: A total of 96 patients were enrolled. Sex, age, BMI, duration of surgery, length of stay in the recovery room and first-timenarcotic drug usage were not significantly different in the two groups. However, the length of time from the anesthetic drug discontinuationto eye opening, verbal responses to verbal stimulation and extubation was significantly lower in the BIS group thanthe control group, respectively (P = 0.002, P = 0.007, P = 0.019).Conclusions: The evaluation of the aneasthesia status of patients based on the BIS index would be more efficient in decreasing theemergence anaesthesia including eye opening, verbal response, extubation after anesthesi

Comparing The Effects of Small Molecules BIX-01294, Bay K8644, RG-108 and Valproic Acid, and Their Different Combinations on Induction of Pluripotency Marker-Genes by Oct4 in The Mouse Brain

Objective: Every cell type is characterized by a specific transcriptional profile together with a unique epigenetic landscape. Reprogramming factors such as Oct4, Klf4, Sox2 and c-Myc enable somatic cells to change their transcriptional profile and convert them to pluripotent cells. Small molecules such as BIX-01294, Bay K8644, RG-108 and valproic acid (VPA) are reported as effective molecules for enhancing induction of pluripotency in vitro, however, their effects during in vivo reprogramming are addressed in this experimental study. Materials and Methods: In this experimental study, Oct4 expressing lentiviral particles and small molecules BIX-01294, Bay K8644 and RG-108 were injected into the right ventricle of mice brain and VPA was systematically administered as oral gavages. Animals treated with different combinations of small molecules for 7 or 14 days in concomitant with Oct4 exogenous expression were compared for expression of pluripotency markers. Total RNA was isolated from the rims of the injected ventricle and quantitative polymerase chain reaction (PCR) was performed to evaluate the expression of endogenous Oct4, Nanog, c-Myc, klf4 and Sox2 as pluripotency markers, and Pax6 and Sox1 as neural stem cell (NSC) markers. Results: Results showed that Oct4 exogenous expression for 7 days induced pluripotency slightly as it was detected by significant enhancement in expression of Nanog (p<0.05). Combinatorial administration of Oct4 expressing vector and BIX-01294, Bay K8644 and RG-108 did not affect the expression of pluripotency and NSC markers, but VPA treatment along with Oct4 exogenous expression induced Nanog, Klf4 and c-Myc (p<0.001). VPA treatment before the induction of exogenous Oct4 was more effective and significantly increased the expression of endogenous Oct4, Nanog, Klf4, c-Myc (p<0.01), Pax6 and Sox1 (p<0.001). Conclusion: These results suggest VPA as the best enhancer of pluripotency among the chemicals tested, especially when applied prior to pluripotency induction by Oct4

Factors affecting burnout in Iranian health care workers during COVID-19: a systematic review

INTRODUCTION: Working through the COVID-19 pandemic has exposed Health Care Workers to physical and psychological risks that can result in a broad range of mental health problems, including burnout. The aim of the present study was to investigate factors affecting burnout in Iranian Health Care Workers during the COVID-19 pandemic. Identifying the principal factors affecting burnout will assist efforts to prepare for, and, prevent harm, to staff participating in future healthcare emergencies. MATERIAL AND METHODS: A systematic review of scientific literature using the PRISMA guideline was completed, and included literature published from January 2020 until December 2021. The articles related to burnout in Iranian Health Care Workers during COVID-19 were obtained through Google Scholar, SID, Magiran Scopus, PubMed, and Web of Science databases using related keywords. Thematic analysis was used to analyze the obtained data. RESULTS: 203 articles were identified through an initial search and finally, 14 studies were entered into the analysis. Based on the literature review, the principal factors affecting burnout were divided into 2 main themes and 4 subthemes. The themes included human factors, and organizational factors, and the sub-themes included individual characteristics, psychosocial factors, occupational conditions, and training. CONCLUSIONS: Individual and psychosocial characteristics have important effects on burnout among Health Care Workers and this can cause negative flow-on effects on the quality of life of these workers, and the quality of medical services. The prevalence of burnout is relatively higher among medical practitioners and nurses, and it is important to enhance coping resources and health education activities that support the resilience of these clinicians in the challenging and stressful context of a pandemic

Applied Criteria of Hospital Information Systems in Organizational Evaluation: A Systematic Review Protocol

Introduction: Through new and expanding technologies, the development of health information technology in today’s society is indisputable, and the use of this technology has led to the production of various products with a variety of capabilities. One of these products is the Hospital Information System. Regarding the impact of organizational factors on the successful implementation of hospital information systems and the lack of comprehensive criteria for assessing them, the purpose of this study was to determine the criteria of hospital information systems involved in organizational evaluation.Methods: Data sources included the following databases: pubmed, scopus and cochrane library. In addition, other sources were searched for ongoing studies and grey literature. Studies were independently screened for eligibility by 2 reviewers and data extraction was done by 2 people. The language limitations for article wasn’t considered, the reference of the articles that selected, review and related articles were selected. After completing the search, all the articles were entered in to EndNote, and duplicates were deleted. The Prisma protocol was used to report.Results and Dissemination: A specific and precise checklist was being prepared and developed, which is an appropriate guide to assess hospital information system from an organizational dimension in health technology assessment. The results of the study were published in a peer-reviewed journal and presented at relevant conferences. Policy makers and healthcare decision-makers can use these results

Personal Electronic Health Record for Patients with Diabetes; Health Technology Assessment Protocol

Introduction: In recent decades, diabetes has contributed significantly to the burden of disease in developed and developing countries, due to the considerable prevalence and involvement of various age groups in the communities.Today, a variety of ways to manage and control the disease are used, one of which is the use of personal electronic health records. Recently there has been a remarkable upsurge in activity surrounding the adoption of personal electronic health records systems for patients and consumers. personal electronic health records systems are more than just static repositories for patient data; they combine data, knowledge, and software tools, which help patients to become active participants in their own care.The present study was conducted with the goal of Health Technology Assessment the impact of personal electronic health records in Patients with Diabetes.Methods: Writing is based on PRISMA standards.  This was a Health Technology Assessment  study. It aimed to evaluate the technology of personal electronic health record . The scoping review was conducted to evaluate 8 dimensions (Health Problem and Current Use of the Technology, Description and technical characteristics of technology, Safety, Costs and economic evaluation, Ethical analysis, Organisational aspects, Patients and Social aspects, Legal aspects) of  Personal electronic health record . This study was based on answering questions which were developed based on Health Diagnostics Technology Assessment Documents Framework and HTA Core Model 3.0 . A systematic review was conducted to evaluate the Clinical Effectiveness dimension of personal electronic health record  in controlling diabetes. In order to gather evidences, Ovid databases, Cochrane Library, PubMed, CRD, Trip database and EMBASE, and Randomized Controlled Trial Registries, such as the Clinical Trial and Trial Registry, were searched using specific keywords and strategies. .Articles are evaluated on the basis of the quality criteria of JADAD.The data is analyzed by the STATA software.Dissemination:The results of the study will be published in a peer-reviewed journal and presented at relevant conferences.Policy makers and healthcare decision-makers can use these results

Precautions in the Operating Room during the COVID-19 Pandemic

Corona is a respiratory virus that can cause death as well as many complications in recovering patients. Preventive and control measures to protect people who are exposed to the corona virus and contract it depend on the type of work performed and the risk of exposure to infected people and contamination of the workplace. Due to the non-necessity of performing non-emergency surgeries and taking precautionary measures for patients who are candidates for surgery and whose corona test is positive, various cases should be considered by the staff during the surgery. To prevent and manage aerosol dispersion, it is better to use a device for suctioning aerosol smoke during surgery, whether in open or closed surgeries (laparoscopy)

Antioxidants in different parts of oleaster as a function of genotype

Introduction: Fruits of oleaster (Elaeagnus angustifolia L.) were used in traditional medicine to treat various diseases. The aim of this study was to evaluate and compare the phenol and flavonoid contents and antioxidant activity of methanol extracts from the fruit peel, flesh and seed of seven genotypes of oleaster. Methods: The phenol and flavonoid contents were determined using spectrophotometric methods. Antioxidant and antiradical activities were determined using reducing power, ferric-reducing antioxidant potential (FRAP) and ability to scavenge DPPH radical assays. Results: Significant differences (P ˂ 0.05) were found in phenol and flavonoid contents and antioxidant activity among components of fruit and between various genotypes. Conclusion: Results indicated that oleaster has good fruit quality varying among different genotypes. Seeds of fruits have excellent antioxidant activity and phenolic contents in comparison to flesh and peel