Effects of Exercise and Pineal Gland on Some of Coagulation Parameters in Olfactory Bulbectomy Rats

This interventional study was aimed to investigate the effects of physical exercises and pineal gland on thrombin time and coagulation time in olfactory bulbectomy rats. The experiment was performed on 120 white male wistar rats weighing 100-150 gr. Animals were divided into two groups; control group and experimental group (olfactory bulbectomy and epiphysectomy). In both group animals were divided into three subgroups: control (without physical exercises), short-time physical exercises (5 minutes) and long-time physical exercise (20 minutes). Blood samples were collected from rat tail tip in several stages as before and after intervention, to determine of coagulation time. Exercise plans included; swimming on water pool until 5 minute and 20 minute in experimental and control groups. Then, thrombin time was measured for each tissue after autopsy of animals. The results revealed that short- time physical exercise significantly decreased thrombin time on different tissues of rats compared baseline values in control group (P<0.001). In contrast, long- time physical exercise significantly increased thrombin time on different tissues in interventional groups (P < 0.001). The findings of this study indicated that in experimental groups, coagulation time increased after long-time physical exercise but decreased after short-time physical exercises. In conclusion, this study suggested that there is a functional relationship between the olfactory bulb and pineal gland via its regulation of circadian rhythms and exercise on changes of coagulation parameters in different tissues. Keywords: Thrombin time; coagulation time; physical exercise; olfactory bulbectomy; epiphysectomy and rat. Abbreviations: CT: coagulation time, TT: thrombin time, OB: olfactory bulbectomy NOB: without olfactory bulbectomy, PEX: physical exercise, NPEX: without physical exercise, EP: epiphysectomy, NEP: without epiphysectomy, SCN: suprachiasmatic nucleus, vWF: von Willebrand factor, aPTT: activated partial thromboplastin time, tPA: tissue plasminogen activato

The Effect of Different Types of Climates on the Spread of COVID-19

Coronavirus disease of 2019 (COVID-19) is the third most common zoonotic disease caused by the coronavirusvirus, SARS in 2002, and Middle East Respiratory Syndrome (MERS) in 2012. The primary origin oftransmission of infection to humans is not well known. However, more prevalence of the disease is caused dueto human-to-human transmission. There are relatively few studies on the impact of climate change on COVID-19 disease in the world. Recognizing the behavioral features of the SARS-CoV-2 virus and its pathogenicity invarious climatic conditions can offer strategies for control measures, preventing the transmission of the disease,and minimizing the potential mortality risk of the virus, which provides a basis for more detailed studies indifferent climatic regions. This study aimed to evaluate the effect of different types of climate on the spread ofCOVID-19

ANORECTAL DISEASES IN AVICENNA’S “CANON OF MEDICINE”

Although the development of modern medicine has helped us detect and treat diseases better than in the past, especially in the field of surgery; the history of medicine may be a trigger that can help us use neglected aspects of prior knowledge for the advancement of modern-day science. Since historical papers that have specifically focused on anorectal diseases are rare, but those that exist contain brief discussions in this field, the current study aims to present a detailed review of Avicenna’s approach to anorectal diseases. Therefore, we reviewed On the Diseases of the Anus, the 17th chapter of the third volume of the Canon of Medicine written by Avicenna, and compared his views on the classification and diagnosis of, and the approach to anorectal diseases with that of modern proctology. Avicenna discussed in detail about anorectal diseases such as hemorrhoid, fissure, perianal abscess and fistula, rectal prolapse, fecal incontinence, and pruritus ani. In addition, we introduce herbs which Avicenna used to treat these diseases. Our findings show that Avicenna’s views on the classification and diagnosis of, and the approach to anorectal diseases have few fundamental differences with modern medicine. In addition, the pharmacological effects of some of the herbs that were recommended by Avicenna, and are used in current medicine are proven. Thus the Medieval knowledge can be further scientifically investigated to develop new therapeutic options for anorectal diseases.Premda nam je razvoj moderne medicine pomogao bolje negoli je to bilo u prošlosti detektirati i tretirati bolesti, napose u polju kirurgije, povijest bi medicine mogao biti okidač koji nam može pomoći u korištenju zanemarenih aspekata prijašnjeg znanja, a za unapređenje suvremene znanosti. Budući da su povijesni tekstovi koji se usko fokusiraju na anorektalne bolesti rijetki, ali oni koji postoje sadrže kratku diskusiju u polju, ova studija nastoji detaljno prikazati Avicenin pristup anorektalnim bolestima. Zbog toga smo prikazali 17. poglavlje trećeg sveska Avicenina Kanona medicine, „O bolestima anusa“, i usporedili njegove poglede na klasifikaciju i dijagnozu te pristup anorektalnim bolestima s onima moderne proktologije. Avicena je detaljno raspravljao o anorektalnim bolestima kao što su hemoroidi, rascjep (fisura), perianalni apsces i kanal (fistula), rektalni prolaps, fekalna inkontinencija i analni svrbež. U nastavku predstavljamo trave koje je Avicena koristio za tretiranje spomenutih bolesti. Naše istraživanje pokazuje da Avicenini pogledi na klasifikaciju i dijagnozu te pristup anorektalnim bolestima imaju malo fundamentalnih razlika s modernom medicinom. Zatim su dokazani farmakološki efekti nekih trava koje je preporučivao Avicena i koji se koriste u sadašnjoj medicini. Dakle srednjovjekovno znanje može biti dalje znanstveno proučavano za razvijanje novih terapijskih mogućnosti za anorektalne bolest

Induction of a rat model of premature ovarian insufficiency using D-galactose feeding during the critical periods of development: A pilot study

Background: Premature ovarian insufficiency (POI) affects about 1% of women of reproductive ages (15-45 yr), with no curative treatment. Objective: We aimed to present a rat model of POI using a D-galactose enriched diet. Materials and Methods: In a pilot study, 4 pregnant Wistar rats were divided into 4 groups; 3 groups were fed galactose-enriched diets at days 3-15 of pregnancy (G1); on the 3rd day of pregnancy to parturition (G2), and the 3rd day of pregnancy until the end of the weaning period (G3). Also, group 4, as the control group (G0), was fed standard pellets during the study. After confirming the lack of adverse effects of dieting with galactose in terms of offsprings’ birth weight, we performed our study designed the same as the pilot study. A total of 40 pregnant Wistar rats were randomly divided into 4 groups. Ovarian histology, reproductive hormones, and immunological characteristics of the female offspring were examined in all experimental groups and compared. Results: The pilot study revealed no significant differences in the birth weight of the offspring of the 4 study groups (p = 0.96). The ovarian index in the female offspring of those with a gal-exposed diet was significantly lower than that of the control group offspring (p < 0.01). Conclusion: As the birth weights of the offspring of our experimental and control groups were similar, it can be concluded that the reduction of ovarian follicles after prenatal exposure to D-galactose is due to the ovotoxicity of galactose. The results of our final study will provide more information about the rat POI model induced by prenatal exposure to D-galactose. Key words: Premature ovarian insufficiency, Animal model, D-galactose

Aberrant DNA Methylation Status and mRNA Expression Level of SMG1 Gene in Chronic Myeloid Leukemia: A Case-Control Study

Objective Chronic myeloid leukemia (CML) is a myeloproliferative malignancy with different stages. Aberrant epigeneticmodifications, such as DNA methylation, have been introduced as a signature for diverse cancers which also plays acrucial role in CML pathogenesis and development. Suppressor with morphogenetic effect on genitalia (SMG1) generecently has been brought to the spotlight as a potent tumor suppressor gene that can be suppressed by tumors forfurther progress. The present study aims to investigate SMG1 status in CML patients. Materials and Methods In this case-control study, peripheral blood from 30 patients with different phases of CML [newcase (N)=10, complete molecular remission (CMR)=10, blastic phase (BP)=10] and 10 healthy subjects were collected.Methylation status and expression level of SMG1 gene promoter was assessed by methylation-specific polymerasechain reaction (MSP) and quantitative reverse-transcription PCR, respectively. Results MSP results of SMG1 gene promotor in the new case group were methylated (60% methylated, 30%hemimethylated and 10% unmethylated). All CMR and control group patients were unmethylated in the SMG1 genepromoter. In the BP group, methylated SMG1 promoter was seen (50% of patients had a methylated status and 50%had hemimethylated status). In comparison with the healthy subjects, expression level of SMG1 in the new case groupwas decreased (P<0.01); in the CMR group and BP-CML groups, it was increased (P<0.05). No significant correlationbetween patients’ hematological features and SMG1 methylation was seen. Conclusion Our results demonstrated that aberrant methylation of SMG1 occurred in CML patients and it had asignificant association with SMG1 expression. SMG1 gene promoter showed diverse methylated status and subsequentexpression levels in different phases of CML. These findings suggested possible participation of SMG1 suppression inthe CML pathogenesis

Effect of Game-Based Nutrition Education on Nutritional Knowledge of Preschool Children

Background: Nutrition education during childhood plays a substantial role in promotion of healthy eating habits throughout the life. We aimed to assess the effect of a newly designed game-based nutrition education program on nutritional knowledge of preschool children. Methods: An experimental study was conducted at eight kindergartens from various socioeconomic levels in Shiraz, Iran. Forty-eight children aged 5 to 6 years old were recruited to the study. We developed a computer-game containing health improving nutritional messages, based on snake and ladder game. The intervention period of game playing was 20 minutes per day for a week. All children were asked to complete a questionnaire, including 9 questions designed for their age group, before and after playing the game. Also, we assessed the acceptance of the game among the experimental group. Results: Forty-seven children including 27 boys and 20 girls completed the study (23 in the experiment and 24 in the control groups). The mean age of participants was 5.71±0.41 years. Baseline scores of nutritional knowledge were significantly more in high socioeconomic regions. The mean score of nutritional knowledge in experimental and control groups improved significantly (0.73±1.62 and 0.52±1.78, respectively). Considering the baseline mean score as covariate, the mean score of nutritional knowledge significantly increased in the experiment group. The results showed that all children preferred to select more healthy foods after playing game. Moreover, the experimental group was interested in playing the game in 3 levels; low (8.7%), high (52.2%), and very high (39.1%). Conclusion: This new game-based educational approach may simplify the education in preschool children and enhance their nutritional knowledge

A Complementary Therapy with Whey Protein in Diabetes: A Double-Blind Randomized Controlled Clinical Trial

Type 2 diabetes (T2DM) and its complications can cause severe morbidity and mortality. The researchers and clinicians’ attention has been toward finding the efficient treatment for T2DM to decrease its heavy burden on the people and countries. Whey protein (WP) is a known glucose-lowering treatment of traditional Persian medicine. This randomized controlled clinical trial aimed to evaluate the efficacy of the WP on the improvement of the glycemic index of the patients with T2DM in Fars, Fasa, Iran. A total of 58 people with T2DM met the inclusion criteria and were randomly assigned to one of two groups: intervention or placebo. For 12 weeks, they were given 1 sachet of WP or 1 sachet of placebo. Before and after the trial, fasting blood sugar, lipid profile, and liver enzymes were tested. Finally, 35 patients completed the study (18 in the whey group and 17 in the placebo group). The mean ± standard deviation of age, BMI, and the disease duration in placebo group were: 52.1±9.2 years, 26.8±3.9 kg/m2 and 102.9±67.7 months and in WP group were 51.2±8.2 years, 25.7±3.7 kg/m2 and 74.2±51.1 months. There were no significant differences among the study groups at the beginning (P>0.05). Meanwhile, the WP and placebo groups were the same by means of the amount of anti-diabetic drugs that participants consumed (P=0.242). After 12 weeks: the fasting blood sugar (FBS) and hemoglobin A1C amounts showed important decreases in the WP group compared to its starting point (P=0.011 and P=0.001 respectively), while in the placebo group, there was no significant difference in this matter (P>0.05).  No severe complications were reported in both groups. In conclusion, we found that whey protein would be a promising complementary therapy to control hyperglycemia in the patients with T2DM

Correlation of resting heart rate with anthropometric factors and serum biomarkers in a population-based study: Fasa PERSIAN cohort study

BACKGROUND: There is a positive association between raised resting heart rate (RHR), and all causes of mortality and shorter life expectancy. Several serum biomarkers and some anthropometric factors can affect the resting heart rate. This study aimed to investigate the determinants of resting heart rate in a large random sample of the Iranian population. MATERIAL AND METHODS: It is a standardized, retrospective study and the subjects were chosen from the baseline survey of the Prospective Epidemiological Research Study in IrAN (PERSIAN) Fasa non-communicable disease cohort study. It was conducted from winter 2014 to summer 2019 and after obtaining informed consent from a random sample, all the eligible subjects were enrolled. All anthropometric factors and biologic laboratory factors were collected and analyzed by implement smoothly clipped absolute deviation (SCAD) linear regression and SCAD quantile regression. The comparisons between males and females were done via independent T-test. RESULTS & CONCLUSION: A total number of 9975 persons from 35 to 90 years old were included. The overall median resting heart rate was 74 (interquartile range:66-80). Mean age has no important difference between males and females (P = 0.79) but, resting heart rate was significantly higher in females (76.6 versus 71.4, P < 0.001). All anthropometric factors except wrist circumference were higher in females (P < 0.05). Age has an adverse effect on resting heart rate and also, there was a direct association between resting heart rate and systolic blood pressure and blood glucose. Alpha-blockers (coefficient = 5.2) and Beta1-blockers (coefficient = - 2.2) were the most effective drugs with positive and negative effects on resting heart rate respectively. Lower hemoglobin, obesity, and more body mass index, and more low-density lipoprotein were associated with more resting heart rate. Continuing the monitoring of this sample via our cohort study and put to action multinational prospective researches with large sample sizes and long follow-ups can lead to more precise results and better scientific judgments

Mapping 123 million neonatal, infant and child deaths between 2000 and 2017

Since 2000, many countries have achieved considerable success in improving child survival, but localized progress remains unclear. To inform efforts towards United Nations Sustainable Development Goal 3.2—to end preventable child deaths by 2030—we need consistently estimated data at the subnational level regarding child mortality rates and trends. Here we quantified, for the period 2000–2017, the subnational variation in mortality rates and number of deaths of neonates, infants and children under 5 years of age within 99 low- and middle-income countries using a geostatistical survival model. We estimated that 32% of children under 5 in these countries lived in districts that had attained rates of 25 or fewer child deaths per 1,000 live births by 2017, and that 58% of child deaths between 2000 and 2017 in these countries could have been averted in the absence of geographical inequality. This study enables the identification of high-mortality clusters, patterns of progress and geographical inequalities to inform appropriate investments and implementations that will help to improve the health of all populations