The Effect of Vitamin D Supplementation on Prostate Cancer: A Systematic Review and Meta-Analysis of Clinical Trials.

Vitamin D has received attention for its potential to disrupt cancer processes. However, its effect in the treatment of prostate cancer is controversial. This study aimed to assess the effect of vitamin D supplementation on patients with prostate cancer. In the present study, PubMed, Scopus, ISI Web of Science, and Google Scholar were searched up to September 2017 for trials that evaluated the effect of vitamin D supplementation on prostate specific antigen (PSA) response, mortality, and its possible side effects in participants with prostate cancer. The DerSimonian and Laird inverse-weighted random-effects model was used to pool the effect estimates. Twenty-two studies (16 before-after and 6 randomized controlled trials) were found and included in the meta-analysis. The analysis of controlled clinical trials revealed that PSA change from baseline [weighted mean difference (WMD)=-1.66 ng/ml, 95% CI: -0.69, 0.36, p=0.543)], PSA response proportion (RP=1.18, 95% CI: 0.97, 1.45, p=0.104) and mortality rate (risk ratio (RR)=1.05, 95% CI: 0.81-1.36; p=0.713) were not significantly different between vitamin D supplementation and placebo groups. Single arm trials revealed that vitamin D supplementation had a modest effect on PSA response proportion: 19% of those enrolled had at least a 50% reduction in PSA by the end of treatment (95% CI: 7% to 31%; p=0.002). Although before-after studies showed that vitamin D increases the PSA response proportion, it does not seem that patients with prostate cancer benefit from high dose vitamin D supplementation and it should not be recommended for the treatment.

Traffic accidents in Iran, a decade of progress but still challenges ahead.

Iran has had incremental incidence of traffic accident mortality since introduction of mechanization about a century ago. But the newest data from Iran show decrease in the absolute number of deaths, death per 10,000 vehicles and death per 100, 000 populations. Despite its huge impact on health and economy, research in the field of traffic crashes is still scant and there are still deficiencies in problem oriented research on traffic accidents. Actual cooperation of policy makers, executive bodies and academician could build platform for intersectoral discussion of different aspects of traffic accidents and could reduce burden of traffic accidents.

Time analysis of fatal traffic accidents in Fars Province of Iran.

OBJECTIVE: To analyze the time factor in road traffic accidents (RTAs) in Fars Province of Iran. METHODS: This study was conducted in Fars Province, Iran from November 22, 2009 to November 21, 2011. Victims'information consisted of age, sex, death toll involving dri- vers or passengers of cars, motorcycles and pedestrians, and site of injury etc. Accidents were analyzed in relation to hour of the day, season of the year, lighting condition including sunrise, sunset, daytime and nighttime. RESULTS: A total of 3 642 deaths (78.3% were males, and the ratio of males to females was about 3.6:1) were studied regarding their autopsy records. There was a steady increase in fatal accidents occurring at midnight to 15:59. The risk of being involved in a fatal traffic accident was higher for those injured between 4:00 to 7:59 than at other times (OR equal to 2.13, 95% CI 1.85-2.44). The greatest number of fatal RTAs took place in summer. Mortalities due to RTA during spring and summer were more pronounced at 20:00 to 23:59 and midnight to 3:59, whereas mortalities in fall and winter were more pronounced from 12:00 to 15:59. CONCLUSION: The high mortality rate of RTA is a major public health problem in Fars Province. Our results indicate that the time is an important factor which contributes to road traffic deaths.

To assess the effects of nutritional intervention based on advocacy approach on malnutrition status among school-aged children in Shiraz.

BACKGROUND: The present study was carried out to assess the effects of community nutrition intervention based on advocacy approach on malnutrition status among school-aged children in Shiraz, Iran. MATERIALS AND METHODS: This case-control nutritional intervention has been done between 2008 and 2009 on 2897 primary and secondary school boys and girls (7-13 years old) based on advocacy approach in Shiraz, Iran. The project provided nutritious snacks in public schools over a 2-year period along with advocacy oriented actions in order to implement and promote nutritional intervention. For evaluation of effectiveness of the intervention growth monitoring indices of pre- and post-intervention were statistically compared. RESULTS: The frequency of subjects with body mass index lower than 5% decreased significantly after intervention among girls (P = 0.02). However, there were no significant changes among boys or total population. The mean of all anthropometric indices changed significantly after intervention both among girls and boys as well as in total population. The pre- and post-test education assessment in both groups showed that the student's average knowledge score has been significantly increased from 12.5 ± 3.2 to 16.8 ± 4.3 (P < 0.0001). CONCLUSION: This study demonstrates the potential success and scalability of school feeding programs in Iran. Community nutrition intervention based on the advocacy process model is effective on reducing the prevalence of underweight specifically among female school aged children.

Metabolic Syndrome and Assisted Reproductive Techniques.

Objective: Metabolic syndrome is a risk factor affecting reproductive health and pregnant outcomes. So far, the effect of this syndrome on the success rate of assisted reproduction techniques (ART) has not been investigated. The aim of this study was to investigate the relationship between metabolic syndrome and the success rate of ART in infertile women in Isfahan. Materials and methods: A prospective cohort study performed on 147 women candidates using in-vitro fertilization/intra cytoplasmic sperm injection (IVF/ICSI) and/or ICSI methods referred to Isfahan Infertility Center in two groups with metabolic syndrome(n=49) without metabolic syndrome(n=98), by convenience sampling methods in Isfahan, Iran in 2018. Body mass index (BMI) and waist, abdominal circumference, Serum triglyceride (TG), cholesterol and FBS were measured. If ßHCG test was positive (day 15-16 after ART), transvaginal sonography (TVS) was done 15 days later. Pregnant women were followed up to the 20th week of pregnancy. To analyze, t-test, chi-square and logistic regression tests were used. Results: The frequency of metabolic syndrome was 33.4% (n=49). The frequency of ART was not significantly different between women with and without metabolic syndrome (p=0.321). The relative frequency of pregnancy (p=0.907) and abortion (p=0.896) did not show a significant difference between the two groups. Independent t-test showed that the mean FBS, HDL, TG, systolic and diastolic BP, abdominal circumference and BMI in the studied units did not differ significantly based on the occurrence of pregnancy and abortion. Conclusion: According to the results of this study, there was no significant difference between the indicators of metabolic syndrome and the success rate of ART in achieving, pregnancy and pregnant outcomes in the first twenty weeks of pregnancy.

Fatal motorcycle accidents in Fars Province, Iran: a community-based survey.

OBJECTIVE: To identify the main characteristics of victims of motorcycle accidents in Fars Province, Iran. METHODS: This cross-sectional study was conducted in Fars Province which has the fourth largest population of all 31 provinces in Iran from March 2009 to June 2010. We included data from all 542 recorded cases of fatalities due to motor vehicle accidents. Data were recorded from the forensic medicine registry consisting of demographic and accident-related information. Demographic information consisted of name, age, sex, status of fatal victim (motorcycle driver vs passenger) and educational level. RESULTS: Of the 2 345 autopsy records from the forensic medicine archives, 542 (23.1%) gave the cause of death as motor vehicle accidents. Mean age of these victims was (31.4+/-6.5) years, and the male to female ratio was 28. Head injury was the most common cause of death in these victims, and overall they tended to have a low level of education. Motorcycle accidents frequently involved younger age groups (15-35 years), and head trauma related with non-use of a helmet was the most common cause of death. CONCLUSIONS: Head injury is frequent among victims in the province we studied. This situation may be related to the victims' low socioeconomic status and little education regarding traffic laws leading to speeding and disregard of these laws along with their weak enforcement.

Epidemiological characteristics of fatal pedestrian accidents in Fars Province of Iran: a community-based survey.

OBJECTIVE: To determine the epidemiological characteristics of fatal pedestrian accidents in Fars Province of Iran. METHODS: This cross-sectional study was conducted in Fars Province of Iran during a 29-month period from March 2009 to July 2011. The data were from the Fars Forensic Medicine Registry. In 4 923 recorded road traffic accident fatalities, 971 deaths were due to pedestrian accidents. The demographic and accident-related information were analyzed by SPSS version 11.5. P value less than 0.05 was considered significant. RESULTS: The mean age of decedents was (47.2+/-26.2) years, ranging from 6 months to 103 years old. Males accounted for 69.8% of all deaths. Fatal accidents were most common in September; 56.1% of the fatal injuries occurred on intracity roads and 33.1% on extracity roads. Fatal head injuries were present in 60.54% of cases. Evaluation of the injury site and the cause of death found that they were significantly associated with age, interval between injury and death. Besides, the type of roads played an important role in mortality. CONCLUSION: Although the clinical management of trauma patients has been improved in our country in the recent decade, decreasing the burden of injuries needs coordination among trauma system organizations.

Effect of chloroquine on some clinical and biochemical parameters in non-response chronic hepatitis C virus infection patients: pilot clinical trial.

BACKGROUND: Hepatitis C virus infection frequently leads to chronic hepatitis C which may progress to cirrhosis and can be ended to hepatocellular carcinoma. This study aimed to investigate the effect of Anthropometric Parameters, Vit D3, Thyroid Function, Ferritin and Biochemistry Parameters in patients chronically infected with HCV with non-response criteria which was treated by chloroquine. METHODS: This study was the continuation of our previous investigation with a triple-blind method in a randomized controlled pilot study. After understanding the study procedures, patients signed an informed consent form and were randomized into the treatment (chloroquine 150 mg once daily, for 8 weeks) and control (placebo once daily, for 8 weeks) groups. The inclusion criteria were male, between 18 and 60 years of age, confirmed chronic hepatitis C with non-response criteria, and Genotype 1.  Data were analyzed with an intention to treat perspective at the end follow up (12 weeks) considering to variables such as anthropometric parameters, Vit D3, thyroid function, ferritin and biochemistry parameters evaluated. RESULTS: Although there were decreases in total weight (P-value=0.4), mid-arm circumference (P-value=0.05), and body mass index (P-value=0.04) there were increases in total body fat (P-value=0.8) and triceps skin fold thickness  (P-value=0.7) in the intervention group compared to the control group. Also, a reduction of AST (P-value=0.30), ALT (P-value=0.10), cholesterol (P-value=0.005), triglyceride (P-value=0.40) and ferritin (P-value=0.030) levels was seen in the intervention group during the follow up period. Our results also showed that serum TSH levels (P-value=0.5) were slightly higher in the chloroquine group than in the placebo group, though the trend was reversed for T3 (P-value=0.05) and T4 (P-value=0.04) levels. however, median of T3 and T4 were similar in both groups. A significant increase in vitamin D levels from 15 to 34 ng/ml was observed in the chloroquine group (P-value=0.04). CONCLUSIONS: The results suggest that chloroquine therapy may be very useful for HCV treatment in patients with non-response criteria, and helps to normalize some anthropometric parameters, biochemical, ferritin, and vitamin D status.

Depression and Obesity/Overweight Association in Elderly Women: a Community-Based Case-Control Study.

Overweight/obesity and depression are common among women especially in the elderly and can lead to unfavorable outcomes. We aimed to determine the association of overweight with depression and also to find any correlation of depression with some anthropometric indices in old women. A total of 94 depressed elderly women were compared with 99 non-depressed controls. The structured diagnostic interview based on DSM-IV were performed to diagnose depression, and Geriatric Depression Scale (GDS) was completed to rate it. Anthropometric indices were measured and compared between groups. Pearson correlation coefficients were determined for linear relations between variables. Odds Ratio of obesity and overweight in depressed subjects comparing with normal participants was 1.45 (95%CI=0.63-3.32). A significant correlation was observed between BMI and GDS score (r=0.231, P-value=0.001). Total body fat (P-value=0.001) and BMI (P-value=0.016) were significantly higher in depressed women than non-depressed women. Despite the significantly higher total body fat and BMI among old women with depression, only a weak correlation was seen between BMI and GDS score.

The impact of depression and malnutrition on health-related quality of life among the elderly Iranians.

INTRODUCTION: The present study aimed to assess the association between nutritional status and depressive symptoms among elderly Iranians and to explore their impact on their Health-Related Quality of Life (HRQoL). METHODS: In this cross-sectional study, 447 elders aging from 55 to 85 years were randomly selected and completed the Iranian version of Geriatric Depression Scale-15 (GDS), Mini Nutritional Assessment (MNA), and the Iranian version of Short Form Health Survey (SF-36). RESULTS: Out of the 447 elderly, 72.1% were female with the mean age of 65.99 ± 7.89 years. The prevalence of depression was 38.1%. In addition, the SF-36 sub-scores tended to be lower among the elders with depressive symptoms according to GDS. The Physical Functioning (PF), Bodily Pain (BP), Role Physical (RP), Role Emotional (RE), and Mental Health (MH) dimensions of the SF-36 were also statistically poorer in the elders with depression. The mean MNA score was 24.6 ± 2.7; 35.4% of the participants were malnourished or at risk of malnutrition and 64.6% were adequately nourished. The sub scores of SF-36 were significantly lower in the elders with impaired nutritional status. CONCLUSIONS: Considering the importance of the association among psychological and nutritional problems and HRQoL in caring for and promoting the welfare of the elders, this study provided fundamental information and a basis for further evaluation of this issue in developing and undeveloped countries.

Dependence of the geriatric depression on nutritional status and anthropometric indices in elderly population.

OBJECTIVE: Malnutrition and depression are highly prevalent in the elderly and can lead to unfavorable outcomes. The aims of the current study were to determine the association between malnutrition and depression and also to find any correlation of depression with some anthropometric indices in free living elderly. METHOD: In this cross-sectional study, 337 elderly subjects (193 females) were selected using cluster sampling. Depressive symptoms and nutritional status were determined by the Geriatric Depression Scale (GDS) and the Mini-Nutritional Assessment (MNA) scores questionnaires, respectively. Anthropometric indices were measured all in standard situations. Chi squared test and t-test were used when necessary. Pearson correlation coefficients were calculated for linear relations between variables. RESULTS: Of all the total subjects, 43.62% were depressed; and of whom, 48.01% were malnourished or at risk of malnutrition. GDS had a significant negative dependence with the MNA for the entire sample (r=-0.58, p <0.0001). However, there was no significant correlation between age and GDS or MNA scores. Moreover, the mean GDS scores differed significantly between men and women (p <0.05), and women were more depressed than men (27.9% vs. 15%, respectively). The elderly subjects living in urban areas were more depressed than those living in rural areas (39.46% vs. 3.85% respectively). CONCLUSION: The results of the present study revealed a high prevalence of depression and malnutrition among old subjects. Moreover, depression was associated with worsening of nutritional status. The mechanism of this association needs further study.