214 research outputs found

    The relationship between self-efficacy and self-esteem with spiritual health in patients with diabetes mellitus

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    BACKGROUND: Diabetes mellitus is one of the most common diseases in Iran and the world. It is chronic, progressive, and expensive, and creates many complications. The present study aimed to determine the relationship between self-efficacy and self-esteem with spiritual health in patients with diabetes mellitus.METHODS: The study was based on a descriptive correlational method. Statistical population consisted of all patients with type 2 diabetes mellitus in Ardabil City, Iran, in 2016. 108 patients with diabetes mellitus were selected as the statistical sample using the convenience sampling method. For data collection, self-efficacy, self-esteem, and spiritual health scales were used. Data analysis was made using Pearson correlation coefficient, and multiple regression tests.RESULTS: There was a significant relationship between the self-efficacy and self-esteem with spiritual health in patients with diabetes mellitus. In addition, the results of multiple regression showed that self-efficacy and self-esteem could significantly predict spiritual health among these patients (P = 0.001 for both).CONCLUSION: It can be concluded that self-efficacy and self-esteem are considered among the predicting variables related to spiritual health

    Sequence variation in mitochondrial cox1 and nad1 genes of ascaridoid nematodes in cats and dogs from Iran

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    The study was conducted to determine the sequence variation in two mitochondrial genes, namely cytochrome c oxidase 1 (pcox1) and NADH dehydrogenase 1 (pnad1) within and among isolates of Toxocara cati, Toxocara canis and Toxascaris leonina. Genomic DNA was extracted from 32 isolates of T. cati, 9 isolates of T. canis and 19 isolates of T. leonina collected from cats and dogs in different geographical areas of Iran. Mitochondrial genes were amplified by polymerase chain reaction (PCR) and sequenced. Sequence data were aligned using the BioEdit software and compared with published sequences in GenBank. Phylogenetic analysis was performed using Bayesian inference and maximum likelihood methods. Based on pairwise comparison, intra-species genetic diversity within Iranian isolates of T. cati, T. canis and T. leonina amounted to 0-2.3, 0-1.3 and 0-1.0 for pcox1 and 0-2.0, 0-1.7 and 0-2.6 for pnad1, respectively. Inter-species sequence variation among the three ascaridoid nematodes was significantly higher, being 9.5-16.6 for pcox1 and 11.9-26.7 for pnad1. Sequence and phylogenetic analysis of the pcox1 and pnad1 genes indicated that there is significant genetic diversity within and among isolates of T. cati, T. canis and T. leonina from different areas of Iran, and these genes can be used for studying genetic variation of ascaridoid nematodes. © Cambridge University Press 2014

    Serum iron level in patients with COVID-19: a case report study

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    Coronavirus disease emerged in Wuhan, China in December 2019 and led to worldwide pandemic in March 2020. Due to early diagnose, treatment and prevent transmission of COVID-19 disease, we need rapid laboratory tests and develop them. This paper focuses on serum Iron level in patients with COVID-19. We assess the serum Iron level due to the following reasons: I. Iron is a key part of hemoglobin structure in which is essential for providing Oxygen to the body organs, particularly for the patients with pulmonary involvement such as COVID-19. II. Iron deficiency can contribute to muscle weakness and reduction of respiratory capacity, at which increases the risk of deterioration of COVID-19 patients. III. Elevation in Hepcidin level (due to the increase in IL-6 level) in COVID-19 patients inhibits Iron absorption from intestinal lumen and blocks the Iron release from macrophages. IV. Iron is an essential element in infectious suppress and inflammatory process. We noticed that most of the patients, especially admitted to hospital due to the respiratory symptoms, have lower serum Iron level

    Concurrent multiscale analysis without meshing: Microscale representation with CutFEM and micro/macro model blending

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    In this paper, we develop a novel unfitted multiscale framework that combines two separate scales represented by only one single computational mesh. Our framework relies on a mixed zooming technique where we zoom at regions of interest to capture microscale properties and then mix the micro and macroscale properties in a transition region. Furthermore, we use homogenization techniques to derive macro model material properties. The microscale features are discretized using CutFEM. The transition region between the micro and macroscale is represented by a smooth blending function. To address the issues with ill-conditioning of the multiscale system matrix due to the arbitrary intersections in cut elements and the transition region, we add stabilization terms acting on the jumps of the normal gradient (ghost-penalty stabilization). We show that our multiscale framework is stable and is capable to reproduce mechanical responses for heterogeneous structures in a mesh-independent manner. The efficiency of our methodology is exemplified by 2D and 3D numerical simulations of linear elasticity problems

    The Role of Respiratory System Surface Area and Ventilation Volume in Severity and Mortality of COVID-19 Infection

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    According to epidemiologic and analytic studies of different countries during coronavirus disease 2019 (COVID-19) pandemic, high prevalence of the disease, more hospitalization, getting a more severe form of the disease, diffused peripheral distribution of opacities, more need to receiving ICU care, poor prognosis, and high mortality rate in men compared with women were obtained. The causes of the above gender differences in subsequent studies were attributed to several factors including behavioral use of masks or handwashing, as well as genetic, hormonal, and immunological factors. Also in the past epidemiologic studies, a higher prevalence of severe acute respiratory syndrome (SARS) and the Middle East respiratory syndrome (MERS) among men was shown than women. Despite the lack of accurate statistical studies, some evidence shows high severe COVID-19 incidence and mortality rate in athlete’s society compared with non-athletes. Respiratory sex-related differences in women include smaller lung volumes, smaller-diameter conducting airways, smaller radial rib cage dimensions, shorter diaphragm, and fewer lung function parameters such as ventilation volume. Originally and typically, athletes have high lung volumes and capacities such as forced expiratory volume in 1 second (FEV1), especially high ventilation volume. It is well-known that in COVID-19 infection, the main route of transmission is respiratory droplets and direct contact with infected people. Hence, this hypothesis is raised that higher lung ventilation volume ratio of men than women and athletes than non-athletes may be the major reason for the difference of COVID-19 infection based on sex. In other words, in the same condition, men expose more viral load than women, also athletes receive more viral load than non-athletes. Viral load is a critical parameter in the severity and mortality of COVID-19 infection. The offered hypothesis may recognize a potential approach in future studies and investigations of COVID-19 infection. Confirmation of this theory in comer studies may update health advice and improve precaution recommendations between athletes and non-athletes as well as men and women based on the surface area of the respiratory system

    Investigating the role of FXN antisense transcript 1 in Friedreich ataxia

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    This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University LondonFriedreich ataxia (FRDA) is a neurodegenerative disorder that is inherited in an autosomal recessive pattern. The most common FRDA mutation is hyperexpansion of a GAA triplet repeat sequence in the first intron of the affected gene, frataxin (FXN), resulting in decreased frataxin protein expression. The hyperexpanded GAA repeats can adopt unusual DNA structures and induce aberrant epigenetic changes leading to heterochromatin mediated gene silencing. Several epigenetic changes, including increased levels of DNA methylation, histone modifications, repressive chromatin formation and elevated levels of non-coding RNA have been reported in FRDA. It has been reported that a novel FXN antisense transcript (FAST-1), is present at higher levels in FRDA patient-derived fibroblasts and its overexpression is associated with the depletion of CTCF, a chromatin insulator protein, and heterochromatin formation involving the critical +1 nucleosome. Previously, characteristics of FAST-1 were investigated in our lab and a full-length FAST-1 transcript containing a poly (A) tail was identified. To investigate any possible effects of FAST-1 on FXN expression, I first overexpressed this FAST-1 transcript in three different non-FRDA cell lines and a consistent decrease of FXN expression was observed in each cell type compared to control cells. I also identified that FAST-1 copy number is positively correlated with increased FAST-1 expression, which in turn is negatively correlated with FXN expression in FAST-1 overexpressing cells. Additionally, we found that FAST-1 overexpression is associated with increased levels of DNA methylation at CpG sites U6 and U11 of the FXN upstream GAA repeat region, together with CTCF depletion and heterochromatin formation at the 5′UTR of the FXN gene. To further investigate the role of FAST-1 in FXN gene silencing, I used a small hairpin RNA (shRNA) strategy to knock down FAST-1 expression in FRDA fibroblast cells. I found that knocking down FAST-1 increases FXN expression, but not to the level of control cells. Lastly, I investigated the pattern of FAST-1 expression and histone modifications at the FXN transgene in our new FRDA mouse model, designated YG8LR. The YG8LR mice showed decreased levels of FXN expression and H3K9ac and increased levels of FAST-1 expression and H3K9me3. Our data suggest that since FAST-1 is associated with FXN gene silencing, inhibition of FAST-1 may be an approach for FRDA therapy

    Assessment of Antidermatophytic Activities of Urtica dioica L against Microsporum canis in a Guinea Pig Model

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    Purpose: To investigate the antidermatophytic effects of Urtica dioica L. against Microsporum canis in vitro and in a guinea pig model.Methods: The in vitro antifungal activity of the extracts was measured by disc diffusion method and assessment of minimum inhibitory concentration (MIC). The dorsum of the guinea pigs was infected with M. canis and topically treated as follows: negative control (NC) received no treatment; positive control (PC) received terbinafine 1 %; DMSO group (negative control) received 10 % DMSO (vehicle); while three other groups, viz, SN10%, SN20% and SN30% received 10, 20 and 30 % hydroalcohol extract dissolved in 10 % DMSO, respectively.Results: Both extracts did not show considerable antifungal activity against M. canis compared with terbinafine. The MICs of aqueous and hydroalcoholic extracts were 30 and 20 mg.ml-1, respectively. PC and SN30% groups showed normal hair growth on day 15 while their skin looked healthy on day 30 post-inoculation. Lesion severity and clinical scores declined in SN30% and PC groups in comparison to NC group, on day 30 post-inoculation. Also, on day 30 post-inoculation, the clinical efficacy of the test formulations increased to 11.76, 23.52, 76.47, 5.88, and 94.11 % for SN10%, SN20%, SN30%, DMSO10%, and PC groups, respectively.Conclusions: The hydroalcoholic extract of this plant could be further developed, with a view to its possibe use as an adjunct remedy for topical treatment of tinea corporis.Keywords: Urtica dioica L., Microsporum canis, Kurdish Ethnomedicine, Antifungal, Hair growth, Lesion, Dermatophytosis, Tinea corpori

    Relationship Between Post-traumatic Growth and Illness Perception and Emotion Regulation in Patients with Cancer

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    Background: Cancer diagnosis causes emotional problems and profound psychological helplessness in patients. We aimed to investigate the relationship between post-traumatic growth and disease perception and emotion regulation in patients with cancer.Methods: The statistical population of this correlation study was all patients aged 18-65 years with breast, leukemia, and gastrointestinal cancer going to the oncology ward of Omid and Imam Khomeini hospitals in Urmia in the first half of 2021. 250 people (121 women and 129 men) were selected by the purposeful sampling method. Data collection tools included a post-traumatic growth questionnaire, a modified illness perception questionnaire, and the emotion regulation process strategies questionnaire. Pearson’s correlation test and multiple regression analysis were used for data analysis.Results: The results showed that negative illness perception had a significant and negative relationship, and optimistic illness perception had a positive, meaningful relationship with post-traumatic growth (P < 0.05). Emotion regulation had a significant and positive association with post-traumatic growth (P < 0.05).Conclusion: How to perceive the disease and emotion regulation strategies in patients with cancer have an influential role in promoting post-traumatic growth

    The Trend of Hydatidosis in Kermanshah Province, Western Iran (1986–2008)

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    Background: Hydatidosis is the larval stage of the Echinococcus granulosus. This disease is en­demic in Iran. There are many studies about hydatidosis in different regions of the country, but there is not any information about the disease in Kermanshah Province. This article will review all available data about hydatidosis in this province.Methods: Using web based search engines and a survey on medical student's theses, all the informa­tion about hydatid cysts in the province from 1986 -2008 was collected.Results: During these twenty years, at least 482 proven cases of hydatid cyst have been identified in the province. Accordingly, the trend of hydatid cyst operation in the province has been grow­ing and the average annual number of cases has reached 1.41/100,000. Frequency of disease in urban areas was slightly higher than rural areas and the rate of infection in housewives was more than others.Conclusion: Because of the growing trend of hydatid cyst operation in Kermanshah Province, which may be due to many different reasons, this province should be considered as one of the impor­tant endemic regions of hydatidosis in Iran

    The impact of mental illnesses on the clinical manifestations of COVID-19 patients

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    Background: The underlying medical conditions with COVID-19 patients may affect the clinical symptoms, morbidity and mortality. Due to the high prevalence of mental illnesses and their impact on inflammatory processes and pulmonary function, we evaluated the impact of depression and anxiety as the highest prevalence of mental illness on clinical manifestations of COVID-19 patients.Methods: A questionnaire form about past medical history completed for the COVID-19 patients. Patients with underlying depression and anxiety excluded and compared with the patients without comorbidities of medical or mental conditions in terms of the common clinical manifestations.Results: Total out of the 560 patients reviewed, 174 patients had no history of any disease (named as group A). 39 patients had the history of depression only and 45 patients had the history of anxiety only (respectively named as groups B and C). There was a high and meaningful frequency of feeling dyspnea (p value 0.05).Conclusions: Comorbidity of depression and anxiety may affect the clinical symptoms in patients with COVID-19. Respiratory symptoms (e.g., cough, tachypnea and feeling dyspnea), tachycardia and chest pain are the more manifested symptoms in the patients with depression and anxiety and may be due to their underlying disease. The impact of mental illnesses on morbidity and mortality of COVID-19 patients remains unclear and requires further studies
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