A randomized clinical trial investigating the impact of magnesium supplementation on clinical and biochemical measures in COVID-19 patients.

BACKGROUND: This study sought to examine the impact of magnesium supplementation on clinical outcomes and biochemical factors among hospitalized patients with COVID-19. METHODS: This double-blind, randomized clinical trial was conducted at Razi Hospital, Ahvaz, Iran, between September 2021 and March 2022. Participants aged 18-70 years with moderate disease severity were enrolled. Magnesium supplementation (300 mg daily) was administered to the intervention group, while the control group received a placebo. Clinical outcomes, including the need for oxygen therapy, oxygen saturation, respiratory rate, fever, hs-CRP and TNF-α levels, as well as quality of life and mental health, were assessed. Blood samples were collected to measure biochemical variables. RESULTS: The main result was the count of individuals requiring oxygen therapy. Additional outcomes comprised of oxygen saturation, respiratory rate, fever, hs-CRP and TNF-α levels, as well as quality of life and mental health. Out of 64 participants, 60 completed the study. The results showed that magnesium supplementation significantly reduced the number of patients requiring oxygen therapy (9 vs. 14; P < 0.001). Moreover, the magnesium group demonstrated improved oxygen saturation compared to the control group (4.55 ± 2.35 vs. 1.8 ± 1.67; P < 0.001). Furthermore, we observed a noteworthy enhancement in the quality of life and depression score in the magnesium group. No significant differences were observed in respiratory rate, fever, hs-CRP, and TNF-α levels (P > 0.05). CONCLUSION: The findings suggest that magnesium supplementation may have beneficial effects on clinical outcomes and arterial oxygen saturation in COVID-19 patients. More investigation is necessary to delve into its potential mechanisms and long-term effects on patient outcomes. TRIAL REGISTRATION: This study is registered on Iranian Registry of Clinical Trials (IRCT) under identifier IRCT20210413050957N1. (The registration date: May 1, 2021).

Association of dietary and lifestyle inflammation score with type 2 diabetes mellitus and cardiometabolic risk factors in Iranian adults: Sabzevar Persian Cohort Study.

Systemic inflammation may contribute to the initiation and progression of type 2 diabetes mellitus (T2DM) through diet and lifestyle. We examined the association of dietary inflammation score (DIS), lifestyle inflammation score (LIS) and dietary and lifestyle inflammation score (DLIS) with T2DM and cardiometabolic risk factors among Iranian adults. In this study, we identified and recruited 619 patients with T2DM and 2113 without T2DM from 35 to 75 years old men and women in the baseline phase of the Sabzevar Persian Cohort Study. Using a validated 115-item semi-quantitative FFQ, we calculated a 19-component DIS and a 3-component LIS weighted by circulating inflammation biomarkers. The DIS, LIS and DLIS associations with diabetes were assessed by multivariable logistic regression analysis. The average age of the participants was 48·29 (sd 8·53) (without T2DM: 47·66 (sd 8·42); with T2DM: 50·44 (sd 8·57)). Individuals in the highest compared with the lowest tertiles of DLIS (OR: 3·40; 95 % CI 2·65, 4·35; Ptrend < 0·001), DIS (OR: 3·41; 95 % CI 2·66, 4·38; Ptrend < 0·001) and LIS (OR: 1·15; 95 % CI 0·90, 1·46; Ptrend = 0·521) had an increased risk of T2DM. For those in the highest relative to the lowest joint DIS and LIS tertiles, the results were OR: 3·37; 95 % CI 2·13, 5·32; Pinteraction < 0·001. No significant associations were found between DLIS and cardiometabolic risk factors, including blood pressure, liver enzymes and glycaemic and lipid profiles, except for waist circumference (P < 0·001) and waist-to-hip ratio (P = 0·010). A higher DIS and DLIS score was associated with a higher risk of T2DM, while the LIS score was not associated with T2DM risk.

Characteristics of Candida albicans Derived From HIV-Positive Individuals With Oral Candidiasis: Genotyping, Phenotypic Variation, Antifungal Susceptibility, and Biofilm Formation.

BACKGROUND: Oral candidiasis (OC) is one of the most common mucosal infections in those afflicted with HIV/AIDS. This study aimed to provide detailed information on the phenotype, genotype, antifungal susceptibility, and biofilm formation ability of oral Candida albicans isolated from HIV-infected patients with OC. METHODS: A total of 25 C. albicans isolates were collected from oral lesions of HIV-infected patients referred to Behavioral Diseases Counseling Center affiliated with Ahvaz Jundishapur University of Medical Sciences, Iran. The antifungal susceptibility testing was done according to CLSI M27 guideline (fourth edition). The crystal violet method was used to evaluate the biofilm formation ability of isolates. Different phenotypes were identified on yeast extract-peptone-dextrose agar medium supplemented with phloxine B. Genotyping analysis of the isolates was performed using high-resolution melting (HRM) assays and ABC genotyping. RESULTS: The highest and lowest susceptibility of the C. albicans isolates was found for fluconazole 24 (96%) and ITC 18 (72%), respectively. Forty-eight percent of the isolates had high biofilm formation ability and exhibited gray cell type. The most common genotype was genotype B (52%). HRM analysis of HIS3, EF3, and CDC3 markers showed three, four, and five different groups, respectively. CONCLUSION: Investigating the phenotype, antifungal susceptibility and biofilm formation ability of the C. albicans isolates obtained from oral lesions of HIV-infected patients revealed that the dominant genotypes in the current research could cause more serious infections from the oral source. We recommend further research with a larger sample size to determine the molecular epidemiology of C. albicans among HIV patients in Iran.

Quantifying the impact of COVID-19 restrictions on air pollution in Ahvaz: a comparative dual-approach assessment of observed against baseline and forecasted criteria air pollutants.

In response to the COVID-19 pandemic, the Iranian government swiftly implemented immediate and decisive measures to control the spread of the infection. This study aims to demonstrate the impact of restriction measure on air pollution, also to highlight the potential variability in results that can arias from different methodological approach. A comprehensive dual-approach assessment was conducted to evaluate the effect of the lockdown measures on criteria air pollutants. Firstly, a traditional approach compared air quality during the pandemic period with baseline conditions from 2013 to 2019. Secondly, observed air pollution values during different periods with varying restrictions in 2020 were compared with expected values. This comprehensive analysis allows for a robust comparison and quantification of the impact of different lockdown measures in Ahvaz. The study revealed significant changes in air pollutant concentrations in Ahvaz during 2020, with variations observed across different pollutants. Notable reductions were observed in O3 levels, particularly in November (-54.44% compared to the baseline) and December (-63.58% compared to expected values). Decreases in CO levels were observed in multiple months, while substantial reductions in PM10 and PM2.5 were observed during various periods. Inconsistencies in the magnitudes and directions of changes were found when comparing baseline and forecasted values. The overall stringency index showed an inverse association with changes in O3, NO2, and CO, with international travel controls and restrictions on internal movement having significant impacts. This study provides valuable insights into the impact of COVID-19 lockdown measures on air pollution in Ahvaz, Iran, using a comprehensive dual-approach assessment. The findings highlight the effectiveness of these measures in reducing specific criteria air pollutants and emphasize the importance of implementing appropriate strategies for air quality management during similar public health emergencies.

The effect of an infection control guideline on the incidence of ventilator-associated pneumonia in patients admitted to the intensive care units.

BACKGROUND AND AIM: Standard airway care can reduce the incidence of ventilator-associated pneumonia (VAP). This study aimed to determine the effect of implementing infection control guidelines on the incidence of VAP in patients admitted to the intensive care unit (ICU). MATERIALS AND METHODS: In this clinical trial, 121 patients admitted to the intensive care units of Golestan and Imam Khomeini hospitals of Ahvaz, Iran who were under mechanical ventilation were assigned to two groups of control and intervention in non-randomly allocation. The study was conducted in two consecutive periods. In the intervention group, infection control guidelines were performed to prevent VAP and in the control group, routine care was performed. Data collection is done by used a three-part instrument. The first part included questions on the patients' demographics and clinical information. The second part was the modified clinical pulmonary infection scale (MCPIS) for the early detection of VAP. The third part of the data collection instrument was a developed checklist through literature review. The MCPIS was completed for all patients on admission and the 5th day of the study. RESULTS: The two groups were homogenous respecting their baseline characteristics (P > 0.05) including the mean MCPIS score (P > 0.05). However, the intervention group had lower body temperature (P < 0.001), lower white blood cell counts (P < 0.038), lower MCPIS score (P < 0.001), and higher PaO2/FIO2 (P < 0.013) at the end of the study. The incidence of VAP was significantly lower in the intervention group when compared to the control group (i.e. 30% vs. 65.6%, P < 0.001). CONCLUSIONS: The implementation of infection control guidelines could significantly reduce the incidence of VAP and its diagnostic indicators in patients admitted to the ICU. Nurses are advised to use these guidelines to prevent VAP in patients admitted to ICU.

Low level of antifungal resistance in Candida species recovered from Iranian HIV-associated oral infection.

Oral candidiasis (OC) is the most frequent opportunistic fungal infection, which is a predictive indicator of immunosuppression and disease progression among people living with HIV/AIDS (PLWHA). In the present study, 109 Candida isolates were collected from 94 PLWHA afflicted with oral Candida infection (OCI) following highly active antiretroviral therapy (HAART). The susceptibility profiles of Candidaspp. to six antifungal agents were evaluated using CLSI broth microdilution. The prevalence of OCI was 34.06%. The susceptibility profile of Candidaspp. revealed 100% sensitivity to caspofungin, while 6.4%, 5.4%, 24.5%, and 2.8% of Candida isolates showed resistance or nonwild-type MICs to fluconazole, itraconazole, posaconazole, and amphotericin B, respectively. Notably, 15.9% of patients and 3.7% of isolates showed mixed Candida infections and multidrug resistance, respectively. The low-level resistance to antifungal agents observed in the present study may be explained by the fact that none of the participants had prior and prolonged exposure to these antifungals. However, more focus should be placed on the mechanisms of reduced susceptibility and low-level resistance in Candida species since they can serve as stepping stones to developing clinical resistance. Alongside this, it seems a must to understand the local epidemiology of Candida spp. and their susceptibility pattern.

Identifying Recent Manic Symptoms by Newly Discharged Patients with Bipolar Disorder.

Background: Bipolar disorder type I is a chronic and recurrent disease and is considered as the ninth nonfatal disease. Identifying the symptoms of the manic episode, which are more likely detected by patients, increases the ability of psychiatrists in diagnosing this disorder. Methods: In this cross-sectional study, a total of 96 patients with bipolar disorder were enrolled from 2 academic psychiatric centers. Then, using the patients' medical records, demographic data were collected. Further, both the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I) interview and the Young mania rating scale (Y-MRS) scale were also performed. Then, about 27 to 33 days after discharge, the patients were contacted by phone and the SCID-I interview was conducted again. Meanwhile, to make the patients focus on the period from which they have recently improved, the phrase "the recent period of hospitalization" was added to the interview questions and the symptoms were checked. Results: At the beginning of the hospitalization, the most common symptom in the total population was irritable mood (89.5%): in the male population decreased need for sleep (98.2%), and in the female population irritable mood (97.5%). In addition, in the evaluation, about 1 month later, irritable mood (69.7%) and decreased need for sleep (67.7%) were the most common symptoms detected by the patients. In terms of the predictive value of each symptom to the diagnosis of that symptom by the psychiatrist, the highest positive predictive value was related to the symptoms of irritable mood (95.5%), decreased need for sleep (95.4%), and talkativeness (95.2%). However, the highest negative predictive value was related to the symptom of elevated mood (87.5%). Conclusion: The patients who have passed manic episodes are more able to detect some symptoms of this episode. Despite some limitations, it seems that using these statistical findings in practice may promote clinical assessment and diagnosis of bipolar disorder type I by psychiatrists.

Non-Adherence to Preventive Behaviors and the Risk of COVID-19: A Comparative Study.

Background: Transmission routes of COVID-19 have been well identified and documented. Considering the high prevalence of the Covid-19 and its impacts on the population, this study aimed to assess the status of preventive behaviors against coronavirus infection and estimate the odds of its transmission routes among people. Methods: A comparative study was conducted from March to April 2021. A total of 1256 participants were randomly selected, including 262 COVID-19 patients and 994 healthy people from 10 counties in Khuzestan, southwest Iran. A two-part questionnaire was used for data collection that included items on demographic and adherence to preventive behaviors. Statistical analysis was performed using the statistical software SPSS 18.0.0 applying logistic regression. Results: The mean age of participants was 37.60±11.48 years (female: 36.49±11.15 years; male: 38.86±11.74 years). The results showed that having contact with infected patient at home (OR = 4.90, 95%CI = 3.32-7.25), going to the hospital for not-necessary medical reasons (OR = 4.47, 95%CI = 3.05-6.55), leaving home for essential daily services (OR = 2.49, 95% CI = 1.63-3.81), and going to doctors' office (OR = 1.78, 95% CI = 1.20-2.63) could increase the odds of infection. Conclusion: The findings suggest that different factors are responsible for the increased spread of the Covid-19. Indeed, since the intervention for every single factor will have a small contribution to reducing the prevalence of the disease, it seems essential to design comprehensive interventions while emphasizing isolation and contacts tracing. The study provides evidence for multi-level and multi-faceted policy and interventions for promoting adherence to COVID-19 preventive behaviors.

Health anxiety and related factors among pregnant women during the COVID-19 pandemic: a cross-sectional study from Iran.

BACKGROUND: The COVID-19 pandemic has affected many countries around the world and Iran was no exception. The aim of this study was to evaluate health anxiety of Iranian pregnant women during the COVID-19 pandemic. METHODS: In this cross-sectional study, 300 pregnant women in different trimesters (n = 100 in each trimester) were recruited. A demographic questionnaire and the Health Anxiety Questionnaire were used to collect data. Scores of < 27, 27-34 and more than 35 were defined as low, moderate and high health anxiety, respectively. Due to nationwide restrictions, data were collected through social media groups. Chi-square tests, ANOVA and multiple linear regression were used to analyze the data. RESULTS: Mean (SD) total anxiety scores were 22.3 ± 9.5, 24.6 ± 9.3 and 25.4 ± 10.6 in the first, second and third trimesters of pregnancy, respectively. 9, 13 and 21% of women had severe anxiety in the first, second and third trimesters of pregnancy, respectively. Women in the third trimester had significantly higher health anxiety scores than those in the first trimester (p = 0.045). CONCLUSION: At the time of the COVID-19 pandemic, women in the second and third trimesters of pregnancy were more worried about consequences of disease, but total health anxiety scores were significantly higher among women in the third trimester of pregnancy. Health care providers should pay more attention to the mental health of pregnant women in times of crises such as the COVID-19 pandemic.

The Impact of Oxytocin Vaginal Gel on Sexual Function in Postmenopausal Women: A Randomized Controlled Trial.

Many postmenopausal women suffer from sexual dysfunction mostly due to the vulvovaginal atrophy. The aim of this study was to assess the effect of vaginal oxytocin gel on sexual function of postmenopausal women. This study was conducted on 96 postmenopausal women with symptoms of vaginal atrophy and sexual dysfunction who were randomly recruited into two groups of oxytocin vaginal gel (400 IU, n = 48) or placebo (n = 48). The PH, vaginal maturation index, and sexual function (using Female Sexual Function Index) of the participants were measured at the beginning of the study and eight weeks later. The vaginal maturation index and the PH of the vagina improved in the oxytocin group compared to those of the placebo. All domains of sexual function including desire, arousal, lubrication, pain, sexual satisfaction, and total score of sexual function improved significantly in the oxytocin gel compared to the control group (p < 0.0001). The results of this study showed that the administration of oxytocin vaginal gel could significantly improve vaginal atrophy as well as sexual function in postmenopausal women. Therefore, using vaginal oxytocin gel for sexual dysfunction in postmenopausal women who are not interested in hormone therapy is recommended.

The effect of oxytocin vaginal gel on vaginal atrophy in postmenopausal women: a randomized controlled trial.

BACKGROUND: Around 90% of postmenopausal women are suffering from vaginal atrophy. This study aimed to evaluate the effect of oxytocin vaginal gel on vaginal atrophy among postmenopausal women. METHODS: This was a randomized controlled trial that was conducted on 96 postmenopausal women who suffered from vaginal atrophy. The inclusion criteria were: literate women, age 40-60, at least 1 year passed from their last menstrual period or the level of FSH > 40 IU, monogamous women with the sexual relationship. Women in the intervention group, requested to use one applicator of 400 IU oxytocin gel per night and women in the placebo group used placebo each night. The subjective symptoms of vaginal atrophy, vaginal PH, maturation index were measured before and after the intervention. RESULTS: The number of superficial cells was increased significantly in the oxytocin group compared to placebo (38.7 ± 7.18 vs. 3.69 ± 2.76, p = 0.0001), while the number of parabasal cells was decreased significantly in the oxytocin compared to placebo after the intervention. The improvement of the maturation index was more dominant in the oxytocin group (increased from 7.76 ± 4.68 to 52.48 ± 7.54) in comparison to the placebo group (increased from 8.58 ± 4.35 to 13.25 ± 5.06). The PH of the vagina decreased significantly in the oxytocin group in comparison to the placebo group (p = 0.0001). After 8 weeks, 88.6 and 7.1% of women in the oxytocin and placebo groups did not show the severe symptoms of vaginal atrophy (p = 0.001). CONCLUSION: The results of this study showed that eight- week intervention with oxytocin vaginal gel (400 IU) could significantly improve the vaginal maturation index, subjective symptoms of vaginal atrophy and reduce the PH of the vagina. Using this medication in women who have a contraindication for hormone therapy is recommended. TRIAL REGISTRATION: IRCT20160602028220N2.

Assessing the Quality of Educational Services of Iranian Universities of Medical Sciences Based on the SERVQUAL Evaluation Model: A Systematic Review and Meta-Analysis.

BACKGROUND: Determining the gap in the quality of educational services, followed by the adoption of appropriate strategies for eliminating or reducing the existing obstacles, is considered the first basic step in developing quality improvement programs for universities. Therefore, this study was conducted to evaluate the quality of educational services of Iranian medical universities. METHODS: This study was a systematic review and a meta-analysis based on the SERVQUAL evaluation pattern, and data collection was done through accessing published articles in reputable academic websites inside and outside Iran including and searching 4 keywords "the quality of educational services, SERVQUAL Evaluation Model, educational service gap, and Iran" without time and language restrictions. The CMA software, version 2.2.064, was used for data analysis. RESULTS: There was a negative gap in all 5 dimensions. The average gap in all the dimensions was -1.335 out of the maximum 5 (responsiveness=-1.463, assurance=-1.367, tangibility=-1.364, empathy=-1.297, and reliability=-1.091). CONCLUSION: Based on the results of this study, it can be claimed that students are not satisfied with the current state of the quality of the educational services provided, and we are far away from achieving the ideal state and wining their full satisfaction. The differences observed among the 5 dimensions of the quality of educational services can be used as a guide for planning and allocating resources. Iranian medical science universities should try to pay their most attention to the dimensions that have the widest gaps and place them at the top of their priorities.

The effect of 8-week mindfulness counseling on sexual self-efficacy of women suffering from human immunodeficiency syndrome: A randomized controlled trial in Iran.

Background and Aims: Sexual self-efficacy refers to a woman's belief that she can be sexually active and attractive for her sexual partner and has acceptable sexual function. One of the issues that may negatively affect sexual self-efficacy is HIV infection. The present study aimed to evaluate the effect of 8 weeks of counseling based on mindfulness on sexual self-efficacy of women affected with HIV. Methods: This was a randomized controlled trial involving 62 HIV-positive women in their reproductive age. Women in the intervention group were further divided into four groups. Each group received eight sessions of counseling based on mindfulness, while the control group received no intervention. A demographic questionnaire and sexual self-efficacy questionnaire were used to collect the data. The independent t test, χ 2, and repeated measure tests were used to analyze the data. Results: The mean change of total score of sexual self-efficacy in Week 8 compared with before intervention was 37.04 (95% CI: 31.38-42.70, p < 0001) and in Week 12 compared with before intervention was 36.97 (95% CI: 31.59-42.34, p < 0.0001), while in the control group, it almost remained unchanged. The score of readiness for sexual relationship, sexual self-stimulation, intimacy without sexual intercourse, and orgasm improved significantly 8 and 12 weeks after intervention (p < 0.0001), whereas no significant differences were observed in these dimensions in the control group. Conclusion: The results of this study showed that 8 weeks of counseling based on mindfulness could significantly improve all dimensions of sexual self-efficacy and its total score in women affected with HIV. Thus, this method of counseling is recommended for HIV-positive women.

The effect of curcumax on postpartum women's depression: a randomized controlled trial.

Background: Postpartum depression is a major psychiatric disorder that affects the mother-baby attachment and may impair cognitive development of the child. Objective: This study aimed to evaluate the effect of curcumax (including ginger, turmeric, and black pepper) on postpartum depression in reproductive-aged women. Material and methods: This was a randomized controlled trial in which 124 women were recruited and randomly assigned into two groups of curcumax (n=62) and placebo (n=62) who consumed curcumax or placebo for 8 weeks (one capsule each day). Postpartum depression was measured using Edinburgh Depression Scale. Data were analyzed using Chi-square, independent t-test, and GEE. Results: The mean (SD) score of depression score was 15.83 (2.77) and 15.45 (2.97) before intervention, which reduced to 3.48 (4.29) and 7.22 (3.98) in the intervention and control groups, respectively after 4 weeks (p<0.0001). After eight weeks of intervention, these scores reduced to 1.72 (3.30) and 5.85 (3.67) in the intervention and control groups, respectively (p<0.0001). Conclusion: The results of this study showed that curcumax significantly reduced the mean score of postpartum depression among reproductive-aged women. Because it is the first time this herb was used as an anti-depressant, its effective dose was not available. Therefore, further studies with higher doses of this herb are recommended. Clinical Trial Registration: https://irct.behdasht.gov.ir/search/result?query=IRCT20210822052254N1, identifier IRCT20210822052254N1.

Effect of continuity of team midwifery care on maternal and neonatal outcomes: a quasi-experimental study in Iran.

Midwife-led continuity of care models have been linked to better clinical outcomes in certain developed countries. However, there is a paucity of research on these models in developing nations. This quasi-experimental study was conducted on primiparous women who referred to one private midwifery center and two public hospitals in Ahvaz, Iran to evaluate the effect of team midwifery care on maternal and neonatal outcomes of pregnant women in Iran. Two hundred women were allocated either into the experimental (n = 100) or control (n = 100) groups. Women in the experimental group, received team midwifery care, while women in the control group, received routine care. Data were collected using a demographic questionnaire, Mackey questionnaire, and a checklist. Women in the team midwifery care group experienced significantly higher rates of normal vaginal birth and exclusive breastfeeding compared to women in the control group. No statistically significant difference was observed between the two groups in terms of the rate of induction of labor and postpartum hemorrhage. The duration of labor was longer in the team midwifery care compared to the control group. Women in the team midwifery care group had a significantly higher rate of exclusive breastfeeding at six weeks postpartum compared to the control group (80 vs. 61%, p = 0.001). After excluding women with ruptured membranes and prolonged pregnancies, neonates in the intervention group had significantly higher first- and fifth-minute Apgar scores (p < 0.0001), and a lower rate of admission to intensive care unit in the intervention group compared to the control group (1 vs. 9%, p = 0.04). Also, women in the team midwifery group had skin-to-skin contact significantly earlier than those in the control group (33.87 ± 66.26 min vs. 111.98 ± 247.31 min, p = 0.578). Given the positive impact of continuous team midwifery care on maternal and neonatal outcomes, its implementation in maternity care systems, particularly in countries like Iran with high cesarean section rates, is strongly recommended.

Deoxyribonucleic acid damage in Iranian veterans 25 years after wartime exposure to sulfur mustard.

BACKGROUND: More than 100,000 Iranian veterans and civilians still suffer from various long-term complications due to their exposure to sulfur mustard (SM) during the Iran-Iraq war in 1983-88. The aim of the study was to investigate DNA damage of SM in veterans who were exposed to SM, 23-27 years prior to this study. MATERIALS AND METHODS: Blood samples were obtained from the veterans and healthy volunteers as negative controls. Lymphocytes were isolated from blood samples and DNA breaks were measured using single-cell microgel electrophoresis technique under alkaline conditions (comet assay). Single cells were analyzed with "Tri Tek Comet Score version 1.5" software and DNA break was measured based on the percentage of tail DNA alone, or in the presence of H2O2 (25 µM) as a positive control. RESULTS: A total of 25 SM exposed male veterans and 25 male healthy volunteers with similar ages (44.66 ± 6.2 and 42.12 ± 5.75 years, respectively) were studied. Percentage of the lymphocyte DNA damage was significantly (P < 0.01) higher in the SM-exposed individuals than in the controls (6.47 ± 0.52 and 1.31 ± 0.35, respectively). Percentages of DNA damage in the different age groups of 35-39, 40-44, 45-49, and 50-54 years in SM-exposed veterans (5.48 ± 0.17, 6.7 3 ± 1.58, 6.42 ± 0.22, and 7.27 ± 0.38, respectively) were all significantly (P < 0.05) higher than the controls (1.18 ± 0.25, 1.53 ± 0.22, 1.27 ± 0.20, and 1.42 ± 0.10, respectively). The lymphocytes incubated with H2O2 had much higher DNA damage as expected. The average of tail DNA is 42.12 ± 2.75% for control cells + H2O2 and 18.48 ± 2.14% for patients cells + H2O2; P < 0.001. CONCLUSION: SM exposure of the veterans revealed DNA damage as judged by the comet assay.

Care Providers' Perspectives on Quality Prenatal Care in High-risk Pregnancies: A Qualitative Study.

Background: A high-risk pregnancy (HRP) is adversely affects the health of the mother, baby, or both. Most prenatal care research, rather than quality concepts, focuses on the adequacy of prenatal care and describes the emotional-psychological experiences of women with HRP. The main purpose of this study was to explore the perspectives of healthcare professionals regarding the quality of prenatal care for women with HRP. Methods: This qualitative study was conducted in three university hospitals and 12 comprehensive health centers in Ahvaz (Iran) from December 2020 to May 2021. In the present study, 10 midwives, 2 executive directors, and 7 specialists were purposefully selected with maximum diversity. In-depth semi-structured individual interviews were used to collect the data. Data were analyzed concurrently using Elo and Kinga's content analysis. The MAXQDA software version 10 was used for data analysis. Results: During data analysis, the 6 main categories "infrastructure for care provision", "optimal clinical care", "organizing referrals", "preconception care", "risk assessment", and "family-centered care" and 14 subcategories were identified. Conclusion: Our findings showed that professional groups focused on the technical aspects of caring. The findings from this study highlight several conditions that can affect the quality of prenatal care for women with HRP. Healthcare providers can use these factors to effectively manage HRPs, thereby improving pregnancy outcomes among women with HRPs.

Effectiveness of Using Face Masks and Personal Protective Equipment to Reducing the Spread of COVID-19: A Systematic Review and Meta-Analysis of Case-Control Studies.

Recently published researches show that 59% of all transmission came from asymptomatic transmission and at the time of diagnosis health-care workers (HCWs) tend to present without respiratory symptoms. These evidences have raised questions on whether an essential policy for use of personal protective equipment (PPE) is the best approach in HCW and other people or not. Therefore, this study conducted to investigate the effectiveness of using face masks and PPE in reducing the spread of COVID-19 in health-care and non-health-care settings. This systematic review and meta-analysis study was prepared according to the preferred reporting items for systematic review and meta-analysis statement and guided by meta-analysis of observational studies recommendations. Searches in databases were conducted from December 2019 to July 2021. Random-effects meta-analysis was performed to investigate the effect of using face masks and PPE on spread of COVID-19. Heterogeneity among studies was assessed using Cochran's Q test and the I 2 metrics. In total, 9920 individuals from 14 studies were included in this study. In all settings, application of PPE or any type of masks was associated with reduction in risk of COVID-19 (odds ratio [OR] = 0.44; 95% confidence interval [CI]: [0.29, 0.65]; I 2 = 85.21%). In the HCW subgroup, the protective effect had a combined OR of 0.33 (95% CI: (0.15,0.73), I 2 = 82.61%). Six studies were found protective effects of wearing mask in non-HCWs (OR = 0.58, 95% CI: (0.31, 1.06), I 2 = 85.63%). Results suggest that there is association between face mask/PPE use and reduction of COVID-19.

The Effectiveness of Prenatal Care Programs on Reducing Preterm Birth in Socioeconomically Disadvantaged Women: A Systematic Review and Meta-Analysis.

Background: Preterm Birth (PTB) is one of the leading causes of infant morbidity and mortality. Prenatal care is an effective way to improve pregnancy outcomes but there is limited evidence of effective interventions to improve perinatal outcomes in disadvantaged pregnant women. This review was conducted with the aim to assess the effectiveness of prenatal care programs in reducing PTB in socioeconomically disadvantaged women. Materials and Methods: We searched the Scopus, PubMed, Web of Science, and Cochrane Library databases from January 1, 1990 to August 31, 2021. The inclusion criteria included clinical trials and cohort studies focusing on prenatal care in deprived women with the primary outcome of PTB (< 37 weeks). Risk of bias was assessed using the Cochrane Collaboration's tool for assessing risk of bias and the Newcastle-Ottawa Scale. Heterogeneity was evaluated using the Q test and I2 statistics. The pooled odds ratio was calculated using random-effects models. Results: In total, 14 articles covering 22,526 women were included in the meta-analysis. Interventions/exposures included group prenatal care, home visits, psychosomatic programs, integrated intervention on socio-behavioral risk factors, and behavioral intervention through education, social support, joint management, and multidisciplinary care. The pooled results showed that all types of interventions/exposure were associated with a reduction in the risk of PTB [OR = 0.86; 95% confidence interval: (0.64, 1.16); I2 = 79.42%]. Conclusions: Alternative models of prenatal care reduce PTB in socioeconomically disadvantaged women compared with standard care. The limited number of studies may affect the power of this study.