فهرست مطالب amir hadi

Aortic valve replacement (AVR) may complicate conduction abnormalities and require permanent pacemaker (PPM) implantation. New techniques that lessen this challenge may lead to the development of new approaches. Our objective was to evaluate the contemporary incidence of early postoperative PPM implantation in patients undergoing isolated AVR and root disease with the standard AVR surgical technique compared with the novel suture AVR technique.

The clinical data of 354 patients (250 male, 104 female) who underwent surgery for isolated AVR and root disease in different referral cardiology departments in Tabriz, Iran, over 4 years were analyzed. Patients with preoperative significant conduction abnormalities were excluded from the study. The patients were evaluated for in-hospital mortality, postoperative PPM implantation, and their stay in the ICU after surgery.

The mean age of the patients was 52.46±16.13 years. Totally, 183 patients (51.7%) were operated on with the new suture AVR technique. In-hospital mortality was lower in this group than in the group that underwent the “classic” surgical technique (2.5% vs 3.7%). PPM implantation was required in 3 patients (0.8%) after the novel suture AVR technique, whereas it was needed in 12 patients (3.4%) in the other group (P=0.024). The mortality rate was 9 patients (2.5%) in group 1 and 13 patients (3.7%) in group 2, which was not statistically significant (P=0.296). According to the logistic regression, the survival rate in the group operated on with the classical surgical method was 0.27 times higher than that in the patients operated on with the new method.

Permanent complete AV block is a critical complication after AVR surgery. A lower PPM requirement and higher survival in patients operated on with the new method was the main finding of this study. New techniques with lower PPM requirements may be suitable for cardiac surgery.

Advantage of native populations of Persian clover to increase quantity and quality of the forage yield, high diversity among the native clover populations of Iran and the lack of registered cultivars driven from these landraces are important reasons for introducing new clover cultivars with native origin in the country. Pars cultivar was selected by pure line selection method in 1999 from 22 native multi cuts clover populations. In 2000-2001, the seed of primary population were planted and superior single plants in each row were selected based on comparison with the native population of Baladeh Kazerun as check cultivar. Then, the selected single plants (top 150 lines) were compared in an alpha lattice design with two replications in 2002-2003. Selected top lines during 2004-2005 were compared in three regions of Karaj, Shahrekord and Broujerd in a semi-final performance trial. To determine the stability and value for cultivation and use (VCU) of the top 15 selected lines, these lines were compared in a completed randomized block design in five regions of Karaj, Boroujerd, Shahrekord, Arak and Sanandaj in 2006-2007. Evaluation of the reaction of selected Iranian clover lines to rust and black clover spot in 2007-2008 cropping year was performed in Boroujerd station under natural infection in the field. To determine the quality and nutritional value of selected lines, an experiment was conducted in Karaj in 2008-2009 cropping year. The results showed that promising Iranian clover lines KPC-EqlidFars-78-4 with 19.9% protein content was superior to the control. In the cropping year 2015- 2016, a research-extension experiment was conducted to compare the forage yield of promising Iranian clover lines KPC-EqlidFars-78-4 with a local control (Harati) in Boroujerd. The results showed that line KPC-EqlidFars-78-4 under farmers' conditions had 72.65 tons per hectare of wet forage yield and 11.56 tons per hectare of dry matter yield with 10.60 and 12.20% superiority to the local control, respectively, Its appropriate optimal use of spring rainfall due to its high growth rate and possibility of mechanized harvesting, due to standing form and high height, early maturity and shorter growing period can result in less irrigation in one growing season, high forage yield potential, especially in onset of the season and also its resistance to rust and black spot diseases that is common in the native population, were some important characteristics of Pars cultivar for release and cultivation in the cold and temperate regions.

Exercise‑induced oxidative stress, muscle damage, and inflammation represent major contributors to why athletes use ergogenic aids. Turmeric is used as a spice because of its polyphenol ingredient named curcumin. We assessed the effects of curcumin supplementation on inflammatory, oxidative stress markers, muscle damage, and anthropometric indices in women with moderate physical activity.

This double‑blind, placebo‑controlled clinical trial was conducted on 80 women with moderate physical activity levels (defined as walking or swimming for at least 1 h per day) for 8 weeks. Mean ± SD of age (years) all participants was 21 ± 2. Participants were randomly assigned into two groups: curcumin (500 mg/day) and placebo (500 mg/day cornstarch). Serum C‑reactive protein (CRP), total antioxidant capacity (TAC), malondialdehyde (MDA), lactate dehydrogenase (LDH) levels, body composition, and maximum oxygen uptake (VO2 max) were evaluated before and after an intervention.

Sixty‑five subjects completed the 8‑week intervention. Within analysis indicated a significant decrease in CRP, LDH, MDA levels, and a significant increase in VO2 max in the curcumin group after an intervention (P < 0.05). There were significant decreases in CRP (P = 0.002), LDH (P = 0.041), and MDA (P = 0.005), no significant increase in TAC, and significant increase in VO2 max (P = 0.0001) levels in the curcumin group compared with placebo group. There were no significant changes in weight, body mass index, body fat, and lean body mass between two groups.

Our findings indicated that 8‑week curcumin administration could significantly improve CRP, LDH, MDA, and VO2 max. Curcumin supplementation did not elicit significant changes in anthropometric indices in this study

Obesity is related to increase in the incidence of morbidity and mortality. Previous studies have led to conflicting results regarding the effect of coenzyme Q10 (CoQ10) supplementation on anthropometric indices. This study aimed to evaluate the efficacy of CoQ10 supplementation on body weight, body mass index (BMI), and waist circumference (WC) through a systematic review and meta‑analysis of randomized controlled trials (RCTs).

PubMed, Scopus, Web of Science, and Cochrane Library as well as the reference lists of the identified relevant RCTs were searched up to March 2019, and weighted mean differences (WMDs) were pooled by using the random‑effects model.

Twenty RCTs (976 participants) were eligible to be included in the systematic review. The meta‑analysis revealed that CoQ10 supplementation had no effect on body weight (WMD = −0.04 kg; 95% confidence interval [CI]: −1.96, 1.6; I2 = 0.0%), BMI (WMD = −0.06 kg/m2 ; 95% CI: −0.54, 0.42; I2 = 0.0%), and WC (WMD = 0.79 cm; 95% CI: −2.83, 0.04; I2 = 0.0%).

CoQ10 supplementation might not improve anthropometric indices. Future well‑designed trials are still needed to confirm these results.

Food insecurit (FI) has been considered as reason for childhood and adolescent overweight/obesity (OW/OB). Hence, this study was undertaken to assess these relationships. Design: Related articles were found by searching the Web of Science, Scopus, PubMed and Embase databases until October 2019. Odds ratio (OR) was analized by a random‑effects model. Standard methods were used for assessment of heterogeneity and publication bias. Data were available from 32 studies. The risk ratios of 139,762 participants were pooled from these articles for the meta‑analysis.

This study domenstrated that children and adolescents in food‑insecure condition are not at risk of OW/OB (OR = 1.02 95% CI: 0.99, 1.05). However, subgroup analysis indicated that FI related with inhanced risk of OW/OB in adolescents living in developed countries (OR = 1.14; 95% CI: 1.02, 1.27). Other subgroup analysis indicated that severe FI increased the risk of OW/OB among adolescents (OR = 1.24 95% CI: 1.03‑1.49). In addition, we found that lower economic development significantly decreased risk of OW/OB among under 6 year children (OR = 0.88; 95% CI: 0.84, 0.93).

Our results showed that higher FI degrees were related with more risks of OW/OB among adolescents (12–18 years). Moreover, the country economic levels had effect on the association between FI and risk of OW/OB.

The prevalence of obesity is rising rapidly worldwide. Diet modification is one of the best possible solutions for prevention and treatment of obesity. One of the diets suggested in this context is the DASH diet (an antihypertensive diet). The present study was designed to determine the effectiveness of this diet on anthropometric indices and body composition in healthy obese women. This study is a randomized parallel controlled trial, carried out on 44 healthy obese women. After an adjustment period, the participants were assigned to intervention (DASH diet) and control (usual dietary advice) groups. Anthropometric indices and body composition were assessed every 2 weeks. Data were analyzed using paired sample t-, independent sample t-, and analysis of covariance tests. After following the DASH eating pattern for three months, variables of weight (p=0.04), body mass index (p=0.03), waist circumference (p=0.01), and waist to hip ratio (p=0.02) significantly decreased compared to the control group. However, no significant change was observed in body composition of the participants (p≥0.05). Given the high prevalence of obesity, adherence to the DASH diet, as health promotion model, is recommended for prevention of various disorders, especially obesity.

Sour tea is a herb that is widely used today. In the past, the plant was used to treat a wide range of disorders including kidney and bladder stones, sexual stimulants, disinfectants, and also for reducing complications of diabetes and hypertension. So far, numerous human and animal studies have been conducted on the effect of sour tea on blood pressure. This article is based on the findings from PubMed, Scopus, ISI, and Google Scholar databases. Considering the findings of many studies conducted in this respect, this substance can probably improve systolic and diastolic blood pressure in patients with hypertension. In this review study, researches on the effect of sour tea on blood pressure and its probable mechanisms have been investigated.

Sour Tea is an herb that is widely used today. In the past, the plant was used to treat a wide range of disorders, including kidney and bladder stones, sexual stimulants, disinfectants, and reduced complications of diabetes and hypertension. So far, numerous human and animal studies have been conducted on the effect of sour tea on blood lipid profile. This article is based on the findings from PubMed, Scopus, ISI and Google Scholar databases. In this review study, studies on the effects of sour tea on blood lipid profile have been investigated. According to more studies in this field, this substance can probably improve blood lipid patterns, especially in diabetics. Sour tea also plays an important role in reducing the blood lipid profiles due to its antioxidant activity and the activity of antioxidant enzymes.

Inflammation, hormonal disturbances, and restricted diets may cause malnutrition in Chronic Kidney Disease (CKD) patients, especially in those undergoing dialysis. Improving nutritional status of these patients by dietary and non dietary interventions could be a vital step to decrease the rates of complication and death. There are broad disagreements in the use of vitamins supplementation in kidney disease and evidence-based advices are spare. Thus, the purpose of this review is collecting evidences that exist about nutritional supplementation in CKD patients.

Cardiovascular diseases (CVD) are a set of metabolic disorders affecting heart and blood vessels. Green tea and sour tea (Hibiscus sabdariffa L.) have attracted significant attention recently due to their high popularity, nutrient profile and therapeutic effects. The aim of the present study was to compare the effects of green tea and sour tea supplementation on blood pressure and lipid profile in healthy adult men.
This randomized, double-blind, placebo-controlled trial included 54 healthy adult men. The participants were randomly assigned to two intervention groups receiving 450 mg green tea or sour tea and one placebo group which consumed 450 mg placebo (maltodextrin) for 6 weeks. Blood pressure, lipid profile, dietary intake and physical activity were measured pre- and post-intervention and compared.
After 6 weeks of intervention, sour tea supplementation led to a significant decrease in systolic blood pressure (SBP) compared with the placebo group. However, we faild to find any significant difference in SBP between green tea and control groups. Also, no significant changes were observed in diastolic blood pressure (DBP) and lipid profile between the three groups. In comparison with baseline, there was a significant increase in the mean level of serum high-density lipoprotein cholesterol (HDL-C) in green tea and sour tea groups. Also, the interventions resulted in significant decrease in the mean levels of serum total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) and DBP in the sour tea group compared with the pre-intervention value.
On the basis of our findings, sour tea supplementation led to decreased SBP in healthy men compared with the placebo, but there was no significant difference between their effects on DBP and lipid profile.

Today, oxidative stress is one of the most important risk factors for cardiovascular disease (CVD). Various studies have reported a strong association between increased consumption of plant flavonoids and reduced risk of chronic diseases. The purpose of this study was to evaluate the effect of green tea and sour tea on serum malondialdehyde (MDA), blood pressure, and body mass index (BMI) in male athletes.
In this study, 54 male athletes who met the inclusion criteria were selected and randomly divided into 3 groups using ternary block randomization. The first, second, and control groups, respectively, received 450 mg/d of green tea extract, 450 mg/d sour tea extract, and 450 mg/d maltodextrin. The serum MDA, blood pressure, and BMI of the subjects were measured at the beginning of and 6 weeks after the study.
Findings: Sour tea extract and green tea extract significantly reduced serum MDA level compared to placebo (P = 0.008). ýHowever, only sour tea extract significantly reduced systolic blood pressure (P 0.001). Neither of the extracts had a significant effect on diastolic blood pressure, weight, and BMI.
This study showed that green tea and sour tea extract consumption can decrease oxidative stress, and thus, reduce the risk of CVD in male athletes.

Livestock husbandry in dry areas is facing scarcity and fluctuation of feed supply specially during dry seasons. At the same time use of halophytic plants such as Alhagi spp. could supply small ruminant requirements. The study was conducted to determine the effect of feeding diets containing Alhagi on the milk yield of Baloochi ewes and body weight gain of their lambs. Seventy-two adult Baloochi ewes (43.5±3.5 kg) in late gestation were randomly selected and distributed into three equal groups, 24 animals each. The selected ewes were fed with the dietary treatments for 2 month before the lambing date and continued until 60 days. The treatments include: 1) Alhagi 0%, wheat straw 65%, barley grain 20%; 2) Alhagi 40%, wheat straw 25%, barley grain 20%; 3) Alhagi 80%, barley grain 20%. Increasing Alhagi replacement in diet led to raise in lignin-cellulose materials. The dietary treatments had a significant effect on overall DMI of ewes (P<0.05). The ewes receiving diets without Alhagi (1338.25 gr) and containing 80% Alhagi (1323.50gr) had increased feed intake significantly (P<0.05) compared with animals fed with Alhagi 40 percent (1068.25gr). Also treatments had a significant effect (P<0.05) on DMI of ewes during the different physiological stages: late gestation and lactating. The ewes fed with Alhagi 80% showed higher milk production than those fed with 40% Alhaji foliage in diet. Means of daily milk production were 574.42, 499.01 and 642.99 g per ewe for the diets containing 0, 40 and 80 % Alhaji, respectively. The milk fat percent related to diet 0% Alhagi was higher than diet containing 80% Alhagi significantly (P<0.05) and milk protein percent was highest (P<0.05) for ewes fed with 0% Alhagi. Diets had no significant effect on milk lactose, SNF and TS percents. The treatments had no significant effect on birth weight. The highest weaning weight and growth rate of lambs was for ewes received diet 0% Alhagi and the lowest was for ewes fed diet 40% Alhagi (P<0.01). Feeding Alhagi browse with energy supplement to lactating Baloochi ewes did not present any significant problems on milk yield or growth rate of lambs and substituting Alhagi browse for cereal straw or alfalfa in diets of sheep and will reduce the cost of roughage component and also it will supply nutritive during periods with forage scarcity.

This research was conducted to study the nutritive value of Jerusalem artichoke (JA) as animal feed. The aerial part of the JA plant was harvested, at full bloom stage, and then chopped and dried. The chopped JA hay included 0.0, 10, 20, 30 and 40 % of alfalfa hay, used as experimental diets, and tested for in vitro digestibility. In a changeover experiment with Latin square based design the in vivo digestibility was studied by sheep. The samples of dried JA forage as well as the experimental diets were collected and analyzed chemically. The nutrient contents of JA were relatively similar to alfalfa hay except for the crude protein that was lower in JA. The in vitro dry mater and organic mater digestibility were not affected by the levels of JA in the diets, but the digestible value reduced (p<0.05) when the JA ratio was increased to the 40% of the diet. The in vivo digestibility of dry mater, organic mater and fiber fractions was decreased in the diet containing 40 percent JA however, total digestible nutrients and metabolisable energy were not significantly different among the treatments. It may be concluded that nutritive value of JA is similar to alfalfa hay, when it is used up to 30% instead of the alfalfa hay based diet.