مجله دانشگاه علوم پزشکی قم
سال سیزدهم شماره 10 (پیاپی 93، دی 1398)

Increased bacterial (streptococcal) biofilm aggregation on the surface of resin composite restorations in comparison with amalgam and glass ionomer restorations makes the composite restorations susceptible to secondary caries next to the restorations.  In this study, the anti-Streptococcus mutans properties of resin composites containing silver nanoparticles were investigated.

In this experimental - laboratory study, using turbidity (spectrophotometry) test, the anti-streptococcus mutans properties of resin composites containing 0, 0.02, 0.03, 0.04, 0.05% w/w of nanosilver particles, were investigated. the composites were adapted on the wall surfaces of 400µl microplates, and after curing or stiffening (by light curing apparatus), they were exposed to the bacterial suspension in broth medium. After 3, 24, and 48 hours, the optical density of the broth was read by spectrophotometer.

The results of the one-way analysis of variance showed that optical density (index of bacterial proliferation) in the composites containing silver nanoparticles with concentration of 0.03% w/w significantly decreased at times of 3 h (0.080±0.0009), 24h (0.079±0.0013), and 48 h (0.079±0.008) in comparison with composites without silver nanoparticles (0.089±0.005, 0.094±0.005, and 0.101±0.009, respectively), which is indicative of significant decrease in bacterial proliferation. This antibacterial effects did not increase in composites containing 0.04 and 0.05 % w/w concentrations of silver nanoparticles.

The results of this study revealed that all groups of the composite containing silver nanoparticles have antibacterial effect. Furthermore, optimal antibacterial effect exists in groups containing silver nanoparticles with concentration of 0.03% w/w.

Post-cesarean pain and anxiety is associated with several complications and it is very important for maternal and neonatal health care and breastfeeding. Some Studies are indicative of a relationship between psychological factors and pain. The aim of this research was to investigate the relationship between perfectionism and post-cesarean pain and anxiety.

This correlational descriptive analytical study was carried out on 70 eligible pregnant women who referred to Omolbanin hospital of Mashhad city for elective cesarean section. Sampling was performed using consecutive method. Data were collected using Ahvaz Perfectionism Questionnaire (APS) and the Spielberger State-Trait Anxiety Inventory (2-3 hours before cesarean section). Two hours after cesarean section, Spielberger questionnaire was used and to assess the patients’ pain, short-form McGill Pain Questionnaire (SF-MPQ), was used. Data were analyzed by Chi-square, Spearman, and Pearson correlation tests at the significance level of p<0.05.

In this study, there was a significant correlations between perfectionism score and trait anxiety (r=0.51, p<0.001) and state anxiety before (r=0.41, p=0.001) and after (r=0.43, p=0.001) the cesarean section. Although there was significant correlation between perfectionism score and sensory dimension of SF-MPQ (r=0.31, p=0.017), no significant correlation was observed with emotional dimension of SF-MPQ (r=0.14, p=0.319(.

The results of this study showed that perfectionism is associated with anxiety and pain after cesarean section; therefore, cognitive behavioral counseling is recommended for perfectionists during pregnancy.

Considering the initiation of the Health Transformation Plan in the Ministry of Health and Medical Education in 2014, evaluation of this plan is of particular importance. The aim of this study was to investigate the performance indicators of the Emergency Department of Shahid Beheshti Hospital in Qom city (before and after the transformation plan).

The study was carried out as a descriptive cross-sectional study in Shahid Beheshti Hospital of Qom city (year 2014). The statistical population consisted of the patients referring to the Emergency Department of the hospital, which was selected from the emergency and archived records and entered into the database. Four emergency department performance indicators, were selected and evaluated before and after the Health Development Plan. These indicators included the percentages of patients who were disposed under 6 hours, percentage of hospitalization of patients under 12 hours, unsuccessful cardiopulmonary resuscitation (CPR), and discharge with personal satisfaction. Data analysis was performed using the Chi square test.

Before and after the Health Transformation Plan, the percentage of patients who were disposed under 6 hours, reached from 86% to 78.5%, hospitalization rate of patients under 12 hours reached from 96% to 83%, discharge with personal satisfaction from 19% to 14%, and the percentage of unsuccessful cardiopulmonary resuscitation from 83% to 55.3%. The mean of these four indicators, was statistically significant 4 years after the implementation of the transformation plan (p<0.0001).

According to the results of this study, emergency performance indicators improved with the implementation of the Health Transformation Plan. Therefore, this study should be carried out at a broader level for all hospital indicators.

The category of health is closely related to growth, comprehensive development, including economic development and human development. Health expenditure are important factors affecting economic growth. These expenditures can increase human development along with human resource and physical capital. The purpose of the present study was to determine the effect of health expenditures (public and private) on the Human Development Index (HDI).

The present study is a time series study, in which data related to health expenditures and human development index were collected in 2001 to 2014 time series. Then, using time series models in econometric and VAR self-regression econometrics, Granger causality techniques were analyzed.

In this study, public health expenditure expenditures had a one-way relationship with adult literacy rate and its direction is from public health expenditures to adult literacy rate. Private health expenditures had a one-way relationship with adult literacy rates and its direction is from private health expenditures to adult literacy rate. There is also a bilateral relationship between public health expenditures and GDP per capita.

The results of the present study indicated that health expenditures have a significant effect on human development index. Given the important role of the private sector in providing and promoting community health, it is suggested that the government should pay special attention to this issue and through further efforts to provide credits, for both public and private sectors, improvent and promotion of the human development index, are provided.

Quality of educational performance of faculty members is a multidimensional concept, which is affected by various factors. The purpose of the present study was to determine the factors influencing the quality of educational performance of the faculty members.

This research qualitative is a descriptive exploratory study, which its data were collected through in-depth semi-structured interviews and analyzed based on thematic analysis. The statistical population of the study consisted of faculty members of Yasuj University of Medical Sciences, among whom, 18 were selected using purposive sampling. Initially, two general questions were asked about the educational performance for beginning the interview and then, the interview process was guided based on the participants' responses. The Interviews were performed in the participants' workplaces and each interview lasted between 1.5 and 2 hours on average. Interviews continued until achieving theoretical saturation.

In this study, firstly, 34 basic themes were extracted and then reduced to 10 organizer themes based on the similarity of the composite and summary content. Organizing themes were divided into five domains, including (inclusive themes) of human factors, professional factors, structural factors, technology, cultural, and social factors, and the qualitative model of these factors was designed.

The results of this study revealed that several factors affect the quality of educational performance of the faculty members, which needs to be taken into consideration by policy makers in order to improve the educational quality.

Inflammatory bowel disease (IBD) is a term that refers to crohn's disease (CD) and ulcerative colitis (UC). Oral manifestations in this disease category precedes the onset of gastrointestinal symptoms. In many patients, intestinal symptoms may be minimal or remain undiagnosed. In this paper, two cases of Pyostomatitis vegetans have been investigated.

 The first case was a 29 year old man who was referred with complaints of diffuse oral lesions. According to the clinical diagnosis and oral lesions of the patient, he was referred to a gastroenterologist with possible diagnosis of ulcerative colitis. The second case was a 28 year old woman with painful gingival lesions who stated that she has been diagnosed with ulcerative colitis since three years ago and has not received appropriate treatment.

Cervical cancer is one of the most prevalent cancers among women. Accurate diagnosis and treatment of complex diseases require precise identification of molecular characteristics of the disease. Transcriptome profiles provide valuable information on gene expression of the studied cells. Applying meta-analysis approache along with network-based approaches provides precise and valuable information about studied data, which can be used in developing new diagnostic and therapeutic methods. The aim of this study was meta-analysis investigation of cervical cancer transcriptome using a network approach in order to identify key genes in the disease.
 

In the current study, three data-sets including 189 cervical cancer samples, were selected for cervical cancer. The data sets were analyzed separately and the results were integrated to obtain genes with the same expression pattern. These genes were used to construct gene regulatory network by STRING database. Network parameters (including degree and betweenness centrality), were used to explore key elements in the network, which are generalizable to cervical cancer.
 

In this study, 194 genes with same expression pattern, were identified in the three data-sets. Moreover, the obtained network analysis led to identification of 12 key genes in the gene expression regulatory network. Some of these genes have been previously reported as oncogenes and are involved in cell cycle regulation and DNA repair pathways.
 

According to the results of this study, these genes can be considered as the potential diagnostic and therapeutic markers for the treatment of cervical cancer.

Premenstrual syndrome is defined as a group of physical and psychological symptom, which happens during luteal phase of the menstrual cycle. Researches have indicated that premenstrual syndrome has significant effects on mental health and well-being of women. The purpose of the present study was to investigate the prevalence and severity of premenstrual syndrome and its relationship with psychological well-being in the students of Qom University of Medical Sciences.
 

 In this descriptive–correlational study, a total number of 226 female students of Qom University of Medical Sciences, were selected using convenience sampling method during 2017-2018. The participants were asked to respond to the Premenstrual Syndrome Scale, Ryff Psychological Well-Being Scale, and demographic checklist. Data were analyzed using descriptive, correlation, and multivariate regression statistical techniques.
 

In this research, 37% of the students reported mild symptoms, 49.8% moderate symptoms, and 13.2% severe symptoms of premenstrual syndrome. Pearson correlation coefficient test also showed that symptom severity had a significant correlation with psychological well-being (p<0.01), which could predict 11% of psychological well-being variance.
 

The results of the current study revealed that premenstrual syndrome has a high prevalence in female students. Moreover, premenstrual syndrome is an appropriate predictor of psychological well-being in female students.