Psychometric assessment of the Persian adaptation of the attitudes toward seeking professional psychological help scale-short form.

BACKGROUND AND PURPOSE: Mental health disorders are a growing concern worldwide, with a significant impact on public health. Understanding attitudes toward seeking professional psychological help is essential in addressing these issues. In the Iranian context, there is a need for a reliable tool to measure these attitudes. This study aims to assess the validity and reliability of the Persian Adaptation of the Attitudes Toward Seeking Professional Psychological Help Scale-Short Form (ATSPPH-SF). MATERIALS AND METHODS: A cross-sectional study was conducted in May 2023, utilizing a convenience sampling method with 1050 participants aged 10 to 65 years in Iran.The ATSPPH-SF questionnaire, consisting of 10 items and 2 subscales, was employed. The questionnaire underwent translation and cultural adaptation, and its validity was assessed through qualitative face and content validities. Confirmatory factor analysis (CFA) was used to evaluate construct validity. Reliability was assessed using McDonald's omega coefficient and Cronbach's alpha coefficient. Data collection was conducted through an online survey. RESULTS: The CFA results indicated a two-factor structure for the ATSPPH-SF, with one factor representing openness to seeking treatment for emotional problems and the other factor reflecting the value and need for seeking treatment. The model demonstrated acceptable fit indices. Both McDonald's omega coefficient and Cronbach's alpha coefficient suggested good internal consistency for the scale. The mean total score for the ATSPPH-SF was 21.37 (SD = 5.52), indicating the reliability and validity of the scale for the Iranian population. CONCLUSION: This study confirms the suitability of the short-form ATSPPH-SF with 10 items and 2 subscales as a valid and reliable tool for assessing attitudes toward seeking professional psychological help in the Iranian population. With no prior appropriate instrument available, this scale fills a crucial gap. It can be employed to measure attitudes among various demographic groups, aiding in the design of targeted interventions to enhance mental health literacy and reduce the stigma associated with seeking professional psychological help in Iran.

The effect of web-based educational interventions on mental health literacy, stigma and help-seeking intentions/attitudes in young people: systematic review and meta-analysis.

OBJECTIVES: This study aims to provide a systematic review and meta-analysis of the literature on The Effect of Web-Based Educational Interventions on Mental Health Literacy, Stigma and Help-seeking intentions/attitudes in young people. METHODS: Articles in English published between April 1975 and February 2023 were retrieved from seven databases, leading to a total of 2023 articles identified. RESULTS: 20 studies were included after applying exclusion criteria, 10 of which were eligible for meta-analysis. Results showed that web-based educational interventions had a significant positive effect on mental health literacy knowledge (SMD = 0.70, 95% CI = [0.16, 1.25]), but not on stigma (SMD = -0.20, 95% CI = [-0.48, 0.08]) or help-seeking intentions/attitudes (SMD = 0.48, 95% CI = [-0.50, 1.46]). CONCLUSION: This study reviewed and analyzed the effect of web-based educational interventions on mental health literacy, stigma, and help-seeking intentions/attitudes among young people. The results showed that web-based educational interventions improved mental health literacy knowledge, but not stigma or help-seeking outcomes. The study suggested several recommendations to enhance the effectiveness of web-based educational interventions on stigma and help-seeking outcomes, such as using more rigorous designs and methods, more comprehensive and multifaceted interventions, more tailored and targeted interventions, and more collaborative and participatory approaches. The study concluded that web-based educational interventions may have a greater impact on reducing stigma and promoting help-seeking among young people, which may ultimately lead to better mental health outcomes and well-being for this population.

Transcriptional analysis of Helicobacter pylori cytotoxic-associated gene-pathogenicity island in response to different pH levels and proton pump inhibitor exposure.

BACKGROUND: Long-term use of proton pump inhibitors (PPIs) can increase the risk of gastric cancer in Helicobacter pylori-infected patients; nevertheless, there is no data about their impact on the pathogenicity of H. pylori. This study aimed at investigating the transcriptional alteration of key gene mediators of cytotoxin-associated gene-pathogenicity island (cag-PAI) among clinical H. pylori isolates in response to omeprazole at different pH levels. METHODS: Accordingly, H. pylori isolates with the same virulence genotypes selected from the gastric biopsies of patients and transcriptional alteration in the cag-PAI genes studied in the presence or absence of omeprazole (2 mg/mL) at pH 2.0, 4.0 and 7.0 after 30 and 90 minutes of the treatment. Relative changes in the transcriptional levels were recorded in each assay, separately. RESULTS: Of 18 H. pylori isolates, the cag-PAI empty site was detected in four strains, while the presence of cagA, cagL and cagY was characterized in 77.7%, 83.3% and 83.3% of the cag-PAI-positive strains, respectively. Transcriptional analysis of the selected strains showed up-regulation of cagA and cagL, mainly at pH 2.0 and 4.0 after 30 and 90-minute exposure. A diversity in the expression levels of cag-PAI genes was seen among the strains at the extent and time of induction. CONCLUSION: Our results showed that omeprazole could increase the expression of H. pylori cagA and cagL at acidic pH. Heterogeneity among the strains probably has an impact on the extent of their interplay with PPIs. Further studies are needed to establish this correlation.

The Association of Human Leucocyte Antigen (HLA) Class I and II Genes with Cutaneous and Visceral Leishmaniasis in Iranian Patients: A Preliminary Case-Control Study.

Background: Leishmaniasis is currently considered a re-emerging or emerging infection based on the geographic region. The outcome of leishmaniasis vastly depends on Leishmania-host interaction. This preliminary study aimed to show the association of human leukocyte antigen (HLA) class I and II genes with healed and non-healed cutaneous leishmaniasis (CL), and symptomatic and asymptomatic visceral leishmaniasis (VL) compared with control groups in Iran. Methods: Ninety-five people, including 31 patients versus 64 individuals in the control group, were enrolled. Among them, 20 patients had confirmed CL based on amastigote observation, 10 had improved CL and 10 non-healed CL. Eleven patients were suffering from confirmed VL based on direct agglutination test (Five asymptomatic and six symptomatic VL cases). Besides, they were residents in an endemic area of VL in the northwest of Iran. To select a control group, it was ensured that they had no history of leishmaniasis. Peripheral blood samples were collected from each patient. After DNA extraction, HLA typing was conducted using polymerase chain reaction - sequence-specific priming (PCR-SSP). Subsequently, data were statistically analyzed by SPSS. Results: There was a statistical relationship between the presence of HLA-A26 and CL, healed CL and the existence of the B38 allele, C1 allele and symptomatic VL, as well as B1.4 allele and asymptomatic VL (P<0.05). Conclusion: This primary finding indicates that several HLA genes have a potential role in the susceptibility of Iranian people to CL and VL.

The antitumor effect of oncolytic respiratory syncytial virus via the tumor necrosis factor-alpha induction and ROS-bax-mediated mechanisms.

BACKGROUND: Cervical cancer represents one of the most prevalent cancers among women worldwide, particularly in low- and middle-income nations. Oncolytic viruses (OVs) can infect cancer cells selectively and lethally without harming normal cells. Respiratory syncytial virus (RSV) is an oncolytic virus for anticancer therapy because of its propensity to multiply within tumor cells. This research aimed to assess the in vitro antitumor activities and molecular basis processes of the oncolytic RSV-A2 on the TC-1 cancer cells as a model for HPV­related cervical cancers. METHODS: Cellular proliferation (MTT) and lactate dehydrogenase (LDH) release assays were used to investigate the catalytic impacts of RSV-A2 by the ELISA method. Real-time PCR and flow cytometry assays were utilized to assess apoptosis, autophagy, intracellular concentrations of reactive oxygen species (ROS), and cell cycle inhibition. RESULTS: Our MTT and LDH results demonstrated that TC-1 cell viability after oncolytic RSV-A2 treatment was MOI-dependently and altered significantly with increasing RSV-A2 virus multiplicity of infection (MOI). Other findings showed that the RSV-A2 potentially resulted in apoptosis and autophagy induction, caspase-3 activation, ROS generation, and cell cycle inhibition in the TC-1 cell line. Real-time PCR assay revealed that RSV-A2 infection significantly elevated the Bax and decreased the Bcl2 expression. CONCLUSIONS: The results indicated that oncolytic RSV-A2 has cytotoxic and inhibiting effects on HPV-associated cervical cancer cells. Our findings revealed that RSV-A2 is a promising treatment candidate for cervical cancer.

Dermatologists Communication Skills and Performance From Point of View of Patients.

INTRODUCTION: Effective communication is an important issue in patient-doctor interaction which is even more important regarding chronic disorders which need a strong relationship between patient and clinician for better compliance and optimal control disease. OBJECTIVES: This study was aimed to develop the best cultural adapted Persian version of the 28-item Calgary- Cambridge Observation Guide (CCOG) questionnaire. METHODS: In this descriptive-analytic study, data collected from 400 patients attending the outpatient dermatology clinics of 3 major hospitals in Tehran using the modified Persian version of CCOG questionnaire, both before and after being visited by dermatologists. RESULTS: The difference of CCG scores for all of questions, except for questions number 1,16 and 22, was statistically significant. The highest score, both before and after visiting, attained by question regarding being respectful. The lowest scores for necessary behavior and the adequate amount of execution were related to questions number 3 (Introducing self) and 4 (Introducing role), respectively. Age and educational level of patients were significantly correlated with their expectations regarding communication skills of clinician. CONCLUSIONS: This study showed the acceptable validity of modified Persian version of CCOG-24 item questionnaire. Our findings also demonstrated that there was a significant difference between what patients expected from a dermatologist and the manner they actually were treated regarding physician communication skills.

Mistreatment of women during childbirth and its influencing factors in public maternity hospitals in Tehran, Iran: a multi-stakeholder qualitative study.

BACKGROUND: Mistreatment during labour and childbirth is a common experience for many women around the world. This study aimed to explore the manifestations of mistreatment and its influencing factors in public maternity hospitals in Tehran. METHODS: A formative qualitative study was conducted using a phenomenological approach in five public hospitals between October 2021 and May 2022. Sixty in-depth face-to-face interviews were conducted with a purposive sample of women, maternity healthcare providers, and managers. Data were analyzed with content analysis using MAXQDA 18. RESULTS: Mistreatment of women during labour and childbirth was manifested in four form: (1) physical abuse (fundal pressure); (2) verbal abuse (judgmental comments, harsh and rude language, and threats of poor outcomes); (3) failure to meet professional standards of care (painful vaginal exams, neglect and abandonment, and refusal to provide pain relief); and (4) poor rapport between women and providers (lack of supportive care and denial of mobility). Four themes were also identified as influencing factors: (1) individual-level factors (e.g., providers' perception about women's limited knowledge on childbirth process), (2) healthcare provider-level factors (e.g., provider stress and stressful working conditions); (3) hospital-level factors (e.g., staff shortages); and (4) national health system-level factors (e.g., lack of access to pain management during labour and childbirth). CONCLUSIONS: Our study showed that women experienced various forms of mistreatment during labour and childbirth. There were also multiple level drivers for mistreatment at individual, healthcare provider, hospital and health system levels. Addressing these factors requires urgent multifaceted interventions.

Mistreatment during labour and childbirth is a common experience for many women around the world. A picture of the nature and types of mistreatment; and especially its influencing factors has not yet been identified in Iran. A qualitative approach to explore manifestations of mistreatment during labour and childbirth while learning about the factors that influence them was used for this study. It obtained this information thanks to semi-structured interviews with women, maternity healthcare providers, and managers between October 2021 and May 2022. Our findings showed that women experienced various forms of mistreatment during labour and childbirth. At individual level, e.g., providers' perception about women's limited knowledge on childbirth process was an influencing factor for mistreatment. At healthcare provider level, a highlighted factor was provider stress and stressful working conditions. At hospital level, e.g., staff shortages played a main role; and at national health system level, participants believed that lack of access to pain management during labour and childbirth was an influencing factor for mistreatment. These findings can provide a good platform for designing and implementing intervention programs to reduce disrespectful maternity care. It can also be used as a guide for managers and policymakers to improve the quality of services provided to women.

In Vitro Study on Four Types of Commercial Lectins on Leishmania infantum, L. major and L. tropica with Stage-Specific Binding and Leishmania Species Identification.

Background: We aimed to verify the susceptibility of Leishmania infantum, L. major and L. tropica, to commercial lectins in order to identify the three Leishmania species. Methods: The degree of agglutination was determined both macroscopically and microscopically and was scored negative (-) to positive (from 1+- 4+) based on their percentage of agglutination. Results: Jacalin and UEA-1 were capable of agglutination of L. infantum isolates in both logarithmic and stationary phases at a concentration of 1000 µg/ml (100%). L. tropica isolates showed agglutination with the lectin UEA-1 in both logarithmic and stationary phases (62.5% and 87.5%). L. major and L. tropica showed 75% agglutination with lectin Jacalin in both logarithmic and stationary phases. L. tropica isolates showed 25% agglutination with the lectin WGA in the logarithmic phase. L. infantum, L. major and L. tropica isolates showed 25, 12.5 and 37.5% agglutination in the stationary phase, however, did not show agglutination in logarithmic phases. L. major isolates showed 12.5% agglutination with the lectin PHA in the stationary phase, however, were incapable of agglutination with the L. tropica and L. infantum in both logarithmic and stationary phases. Conclusion: Despite the fact, that JCA and I-UEA lectins were not able to completely separate L. infantum, L. major and L. tropica. WGA lectin and PHA lectin can help in separating the species of Leishmania parasites.

A Mixed Methods Multicenter Study on the Capabilities, Barriers, and Opportunities for Diabetes Screening and Management in the Public Health System of Southern Ethiopia.

Background: More than half of diabetics' in Ethiopia live undiagnosed, and the majority of those who already knew their status also struggle to manage their diseases. However, the underlying challenges are less understood in the study area. Therefore, this study aimed to assess diabetes screening and management capabilities, barriers, and opportunities in southern Ethiopia. Methods: We applied a mixed methods study. To assess the healthcare systems' capabilities, we collected quantitative data from randomly selected ten hierarchically organized healthcare facilities, and purposive maximum variation sampling was applied to recruit twenty-nine individuals for face-to-face in-depth interviewing. The interviews were audio recorded, transcribed verbatim, thematically analyzed, and presented accordingly. Results: Our study findings indicated that there were good opportunities and encouraging capabilities like government commitment and expansion of services to improve diabetes screening and management in southern Ethiopia. Nevertheless, poor governance, the system's structural problems, skilled professionals' inaccessibility and lack of teamwork, poor service integration, poor planning, and lack of monitoring and evaluation mechanisms have been hampering the service delivery at the system level. While service unaffordability, low awareness level, and lifestyle modification problems were the main challenges at the patient level. Furthermore, outdated paper-based medical record documentation, frequent essential drug stock-outing, essential laboratory service interruptions, and none-use of some available services like HbA1c have been contributing to the barriers. Conclusion: Despite favorable capabilities available, diabetes management in southern Ethiopia has been struggling with solvable structural defects, poor service delivery and inaccessibility, and patients' poor lifestyle modification. Therefore, public health system restructuring, optimum financing, computerization of medical records documentation, and health system and patient capacity building are strongly recommended interventions to tackle the problem at the grass-root level.

A novel dynamic Bayesian network approach for data mining and survival data analysis.

BACKGROUND: Censorship is the primary challenge in survival modeling, especially in human health studies. The classical methods have been limited by applications like Kaplan-Meier or restricted assumptions like the Cox regression model. On the other hand, Machine learning algorithms commonly rely on the high dimensionality of data and ignore the censorship attribute. In addition, these algorithms are more sophisticated to understand and utilize. We propose a novel approach based on the Bayesian network to address these issues. METHODS: We proposed a two-slice temporal Bayesian network model for the survival data, introducing the survival and censorship status in each observed time as the dynamic states. A score-based algorithm learned the structure of the directed acyclic graph. The likelihood approach conducted parameter learning. We conducted a simulation study to assess the performance of our model in comparison with the Kaplan-Meier and Cox proportional hazard regression. We defined various scenarios according to the sample size, censoring rate, and shapes of survival and censoring distributions across time. Finally, we fit the model on a real-world dataset that includes 760 post gastrectomy surgery due to gastric cancer. The validation of the model was explored using the hold-out technique based on the posterior classification error. Our survival model performance results were compared using the Kaplan-Meier and Cox proportional hazard models. RESULTS: The simulation study shows the superiority of DBN in bias reduction for many scenarios compared with Cox regression and Kaplan-Meier, especially in the late survival times. In the real-world data, the structure of the dynamic Bayesian network model satisfied the finding from Kaplan-Meier and Cox regression classical approaches. The posterior classification error found from the validation technique did not exceed 0.04, representing that our network predicted the state variables with more than 96% accuracy. CONCLUSIONS: Our proposed dynamic Bayesian network model could be used as a data mining technique in the context of survival data analysis. The advantages of this approach are feature selection ability, straightforward interpretation, handling of high-dimensional data, and few assumptions.

Effect of heat stress on DNA damage: a systematic literature review.

Thermal stress has a direct effect on various types of DNA damage, which depends on the stage of the cell cycle when the cell is exposed to different climate conditions. A literature review was conducted to systematically investigate and assess the overall effect of heat stress and DNA damage following heat exposure. In this study, electronic databases including PubMed, Scopus, and Web of Science were searched to find relevant literature on DNA damage in different ambient temperatures. Outcomes included (1) measurement of DNA damage in heat exposure, (2) three different quantification methods (comet assay, 8-hydroxy-2-deoxyguanosine (8-OHdG), and γ-H2AX), and (3) protocols used for moderate (31) and high temperatures (42). The evidence shows that long exposure and very high temperature can induce an increase in DNA damage through aggregate in natural proteins, ROS generation, cell death, and reproductive damage in hot-humid and hot-dry climate conditions. A substantial increase in DNA damage occurs following acute heat stress exposure, especially in tropical and subtropical climate conditions. The results of this systematic literature review showed a positive association between thermal stress exposure and inhibition of repair of DNA damage.

The effects of Chlamydia trachomatis, Mycoplasma hominis, and Ureaplasma urealyticum loads on semen quality: Detection and quantitative analysis.

BACKGROUND: The loads of Chlamydia trachomatis (CT), Mycoplasma hominis (MH), and Ureaplasma urealyticum (UU) may impact infertility, as well as cause risk of transmission. The quality and quantity of semen demonstrate male reproductive health. This study aimed to investigate the semen quality affected by CT, MH, and UU loads. MATERIALS AND METHODS: 130 semen samples, including infertile and fertile cases, were collected and analyzed. The whole genomic DNA was extracted, and the desired genes' plasmids were constructed. The CT, MH, and UU loads were quantified by real-time PCR. The data were analyzed using SPSS version 24. RESULTS: The average age of participants was 35.2 ± 6.8 years. CT, MH, and UU frequency were 9.2% vs. 3.1%, 15.4% vs. 3.1%, and 15.4 vs. 3.1% in infertile and fertile men, respectively. The mean loads of CT, MH, and UU in infertile men were 6.44 log10 copies/ml (range 5.31-7), 4.24 log10 copies/ml (range 3.37-4.7), and 6.94 log10 copies/ml (range 5.08-8.69) respectively, which was significantly higher than fertile men. The findings revealed a significant correlation between CT and UU loads and semen parameters, whereas the load of MH displayed significant effects just on sperm motility, morphology, and the number of leukocytes. CONCLUSION: The absence of clinical manifestations may not indicate the quality of semen. The pathogens' loads may significantly influence the quality and properties of male reproductive health.

The Impact of Cancer Incidence on Catastrophic Health Expenditure in Iran with a Bayesian Spatio-Temporal Analysis.

Background: We investigated the impact of cancer incidence on CHE in Iran by considering spatial variation across provinces as well as temporal trends. Methods: Data from Household Income-Expenditure Survey were merged with cancer incidence rates during 2011-2016. We developed a Bayesian hierarchical model to explore the spatial and temporal patterns of CHE and its associated factors at provincial level. We used a Besag-York-Mollie2 prior and a random walk prior for spatial and temporal random effects respectively. All statistical analysis was carried out in R software. Results: All-type cancer incidence (OR per SD (95% CrI) = 1.16 (1.02, 1.32)), unemployment rate (1.08 (1.01, 1.15)) and income equity (0.88 (0.81, 0.97)) have important association with CHE. Percentage of urbanization and percentage of poverty were not statistically significant. Conclusion: The results suggest the development of new policies to protect cancer patients against financial hardship, narrow the gap in income inequality and solve the problem of high unemployment rate to reduce the level of CHE at provincial level.

Thermal stress and TiO2 nanoparticle-induced oxidative DNA damage and apoptosis in mouse hippocampus.

Titanium dioxide (nano-TiO2) is used abundantly in various industrial products and novel medical therapies. In addition, the impact of climate change on the health and safety will undoubtedly increase in the future. However, the effects of exposure to these nanoparticles and heat stress on hippocampal DNA damage and apoptosis remain unclear. This study was conducted to evaluate the DNA damage and apoptosis in the hippocampal tissue and the physiological responses in mice induced by intraperitoneal (i.p.) administration of TiO2 nanoparticles (NPs) and heat stress for 14 consecutive days. The results showed that heat stress and TiO2-NPs were induced in the mouse hippocampus that led to hippocampal reactive oxygen species generation, oxidative damage of DNA, and apoptosis in a partly dose-dependent manner, especially at very hot temperature. High doses of nanosized TiO2 and severe heat stress significantly damaged the function of the hippocampus, as shown in the comet assay and apoptosis tests. The results of this study may provide data for appropriate measures to control and assess the risk of nano-TiO2 and thermal stress hazards to human health, especially workers. Safety guidelines and policies should be considered when handling nanomaterials in a hot environment.

Molecular Characterization of Fungal Colonization on the Provox™ Tracheoesophageal Voice Prosthesis in Post Laryngectomy Patients.

BACKGROUND: Tracheoesophageal voice prostheses (TVPs) have been the gold standard in rehabilitation, after laryngectomy, producing faster and premier voicing towards esophageal speech. Fungal colonization shortens the device's lifetime and leads to prosthesis dysfunction, leakage, and subsequent respiratory infection. Therefore, in the current study, we aimed to investigate the fungal colonization patterns and to propose prophylactic measures that shall increase the longevity of voice prosthesis. METHODS: Failed TVPs were removed - due to leakage and/or aspiration - from 66 post laryngectomy patients and examined. They were referred to Amiralam and Rasoul Hospital, the main centers of Ear, Nose, and Throat in Tehran, Iran from April 2018 to January 2020. Fungal colonization patterns were assessed using DNA sequencing techniques. Furthermore, the susceptibility to fluconazole, amphotericin B, nystatin, and white vinegar was evaluated according to the Clinical and Laboratory Standards Institute (CLSI) guidelines. RESULTS: Resident fungal species from the upper airways colonized all the 66 TVPs (100%). Diabetes (31%) and smoking (98%) were the predominant underlying disease and predisposing factors, respectively. Among the 79 fungal agents isolated from the 66 TVPs, Candida glabrata (n=25, 31.7%) was the most common. A significant reduction in minimum inhibitory concentration (MIC) values were observed for white vinegar when used alone (P<0.05). CONCLUSION: White vinegar at a very low concentration could decrease the amount of fungal colonization on TVPs without any adverse effects; its wide accessibility and affordability ensure a decrease in the overall health cost.

Effect of probiotic supplementation on migraine prophylaxis: a systematic review and meta-analysis of randomized controlled trials.

Objective: The prevalence of migraine is higher in patients with gastrointestinal disorders. Possible underlying mechanisms could be increased intestinal permeability and systemic inflammation. Probiotics may reduce gut permeability as well as inflammation, and therefore may improve the clinical features of migraine. This systematic review and meta-analysis aimed to evaluate the impact of probiotic supplementation on the frequency and severity of migraine attacks.Methods: A systematic review of the literature was conducted using ISI Web of Science, PubMed/Medline, Scopus, Cochrane Library, EMBASE, Google Scholar, Magiran.com and Sid.ir to identify eligible studies published up to October 2019. A meta-analysis of eligible trials was performed using the random-effects model to estimate pooled effect size.Results: Three randomized controlled trials with 179 patients (probiotic group = 94, placebo group = 85) were included. Probiotic supplementation had no significant effect on frequency (weighted mean difference (WMD) = -2.54 attacks/month, 95%CI: -5.31-0.22, p = 0.071) and severity of migraine attacks (WMD = -1.23 visual analog scale (VAS) score, 95%CI = -3.37-0.92, p = 0.262) with significant heterogeneity among the studies (I2 = 98%, p < 0.001).Conclusions: A pooled analysis of available randomized controlled clinical trials showed that probiotic supplementation had no significant effect on the frequency and severity of episodic migraine attacks.

Detection of glioblastoma multiforme using quantitative molecular magnetic resonance imaging based on 5-aminolevulinic acid: in vitro and in vivo studies.

OBJECTIVES: We demonstrated a novel metabolic method based on sequential administration of 5-aminolevulinic acid (ALA) and iron supplement, and ferric ammonium citrate (FAC), for glioblastoma multiforme (GBM) detection using R2' and quantitative susceptibility mapping (QSM). MATERIALS AND METHODS: Intra-cellular iron accumulation in glioblastoma cells treated with ALA and/or FAC was measured. Cell phantoms containing glioblastoma cells and Wistar rats bearing C6 glioblastoma were imaged using a 3 T MRI scanner after sequential administration of ALA and FAC. The relaxivity and QSM analysis were performed on the images. RESULTS: The intra-cellular iron deposition was significantly higher in the glioma cells with sequential treatment of ALA and FAC for 6 h compared to those treated with the controls. The relaxivity and magnetic susceptibility values of the glioblastoma cells and rat brain tumors treated with ALA + FAC (115 ± 5 s-1 for R2', and 0.1 ± 0.02 ppm for magnetic susceptibility) were significantly higher than those treated with the controls (55 ± 18 (FAC), 45 ± 15 (ALA) s-1 for R2', p < 0.05, and 0.03 ± 0.03 (FAC), 0.02 ± 0.02 (ALA) ppm for magnetic susceptibility, p < 0.05). DISCUSSION: Sequential administration of ALA and iron supplements increases the iron deposition in glioblastoma cells, enabling clinical 3 T MRI to detect GBM using R2' or QSM.

Development of an observational - perceptual heat strain risk assessment (OPHSRA) index and its validation.

BACKGROUND: The thermal strain can be measured using subjective methods without the use of sensitive equipment. The purpose of the present study was the development and validation of an observational - perceptual heat strain risk assessment (OPHSRA) method. METHODS: This cross-sectional study, in 2019, was performed. At first, an observational-perceptual questionnaire was designed using effective items in producing heat strain. Then, the reliability and validity of the questionnaire were examined. Later, 201 male workers were asked to perform the routine tasks for 90 min under various climatic conditions after resting in a cool room. At the end of the activity, the tympanic temperature of the subjects was accurately measured. Also, the designed questionnaire was completed by researchers and participants. Then, the effect coefficients of the items were calculated and used for developing the novel index. At final, the index validity was investigated. RESULTS: The values of the content validity ratio (CVR), content validity index (CVI), and Cronbach's coefficient alpha (α) of the designed questionnaire with 16 questions were equal to 0.793, 0.913, and 0.910, respectively. The results indicated that environmental, job, administrative, and clothing items assessed by the questionnaire with the coefficients of 0.860, 0.658, 0.783, and 0.566 had significant effects on the thermal strain, respectively. These coefficients were exploited to develop the index. The result revealed that the OPHSRA index justified 69% of the variations of the tympanic temperature (R2 = 0.69). CONCLUSION: The novel index developed by the questionnaire had an acceptable validity. Therefore, this index can be used for estimating the risk of thermal strain in a variety of thermal conditions.

The Magnitude, Types, and Roles of Social Support in Diabetes Management among Diabetics' in Southern Ethiopia: a Multilevel, Multicenter Cross-Sectional Study.

INTRODUCTION: Lifelong medical management is the main intervention to reduce diabetes-related morbidities and premature deaths; yet, social support can be a vital intervention to improve diabetics' health. Therefore, this study aimed to determine the magnitude, types, and role of social support in diabetes management in southern Ethiopia. METHODS: A multi-stage systematic sampling was applied to recruit 634 adult diabetics from the three-tiered healthcare system in the region. We proportionally distributed the sample size between randomly selected ten health-care facilities across the hierarchy. Pretested questionnaires and checklist; Epi-Info, and SPSS software used for data collection; entry, and analyses, respectively, and the statistical significance was determined at a P-value ≤0.05. RESULTS: A total of 240 females and 356 males completed the study, and the overall magnitude of the social support was 50.20% [95% CI: 46.19%, 54.21%], and it was categorized into non-material and material with 44.13% [95% CI: 40.14%, 48.12%] and 34.23% [95% CI: 30.42%, 38.04%] magnitudes, respectively, and social support was left to the patients' families and friends whereas formal institutions and the public sectors were rarely offering when the patients needed it. Though sex, educational level, and health-care hierarchy were not significantly associated with the social support, residence, some occupations, presence of diabetic family members, acute medical conditions, blood glucose level, compliance to medical follow-ups, treatment adherence, and taking anti-diabetic drugs a day before the current visit to health-care facility were all statistically significantly associated with social support. CONCLUSION: One of every two adult diabetic patients in southern Ethiopia was receiving any social support, and social support for diabetic people reduces medical follow-ups absenteeism, improves treatment adherence, glycemic level controlling, and helps lifestyle modifications. Therefore, to keep diabetic people healthy and achieve diabetes management goals, the Ethiopian healthcare system, institutions, and concerned stakeholders should strengthen the social support for diabetic patients.

Antimicrobial resistance pattern in healthcare-associated infections: investigation of in-hospital risk factors.

BACKGROUND AND OBJECTIVES: Antimicrobial resistance (AMR) is an increasing threat for efficient treatment of infections. Determining the epidemiology of healthcare-associated infections and causative agents in various hospital wards helps appropriate selection of antimicrobial agents. MATERIALS AND METHODS: This retrospective study was performed by analyzing antibiograms from March 2017 to March 2018 among patients admitted to the different wards of Imam Khomeini Hospital Complex in Tehran, Iran. RESULTS: Among 2440 hospital acquired infections, 59.3% were Gram-negative bacilli: E. coli (n = 469, 22.2%), K. pneumoniae (n = 457, 21.7%), Acinetobacter spp. (n = 282, 13.4%), P. aeruginosa (n = 139, 6.6%) and important Gram-positive bacteria were Enterococcus spp. (n = 216, 10.2%), S. aureus (n = 148, 7%), S. epidermidis (n = 118, 5.6). Generally, there was a high antimicrobial resistance in bacterial isolates in this study. Methicillin resistant Staphylococcus aureus (MRSA) was 56.3 % and MRSE 62.9 %. Vancomycin resistant enterococci (VRE) was 60.7%. K. pneumoniae-ESBL was 79.6% and its resistance to carbapenem was 38.4%. E. coli-ESBL was 42% and its resistance to carbapenems was 2.3%. P. aeruginosa resistance to ceftazidime was 74.4%, to fluroquinolones 63.3%, to aminoglycosides 64.8%, to piperacillin tazobactam 47.6% and to carbapenems 62.1%. Acinetobacter baumannii resistance to ceftazidime was 98.7%, to fluroquinolones 97%, to aminoglycosides 95.9%, to ampicillin sulbactam 84%, to carbapenems 96.4% and to colistin 4%. CONCLUSION: The study revealed an alarming rate of resistance to the commonly used antimicrobial agents used in treating HAIs. Also the relationship between AMR and some risk factors and thus taking steps towards controlling them have been shown.