Browsing by Author "Heshmati, Javad"
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- Does vitamin D supplementation impact serotonin levels? A systematic review and meta-analysis.Publication . Alimohammadi-Kamalabadi, Malek; Ziaei, Somayeh; Hasani, Motahareh; Mohammadi, Shooka; Mehrbod, Milad; Morvaridi, Mehrnaz; Persad, Emma; Belančić, Andrej; Malekahmadi, Mahsa; Estêvão, Maria Dulce da Mota Antunes de Oliveira ; Daneshzad, Elnaz; Heshmati, JavadVitamin D deficiency impacts a significant proportion of the world's population, and this deficiency has been linked to various conditions characterized by imbalanced serotonin regulation. The objective of this systematic review and meta-analysis was to evaluate the effect of vitamin D supplementation on serum serotonin levels. We conducted a comprehensive search of PubMed, Scopus, Cochrane Central for Randomized Clinical Trials, and Web of Science up to September 2022, without any language restrictions. The effect sizes were calculated using the standard mean difference (SMD) and 95% confidence interval (CI). Six randomized clinical trials involving 356 participants were included in the analysis. Our findings indicated no significant changes in serotonin levels between the intervention and control groups (SMD: 0.24 ng/mL, 95% CI: -0.28, 0.75, > 0.10). Subgroup analysis also did not reveal any significant changes in serotonin levels among children, participants with autism spectrum disorders, interventions lasting 10 weeks or longer, or those receiving vitamin D doses below 4000 IU/day. Although the results obtained in this systematic review are inconclusive, they support the need for further well-designed randomized trials to assess the potential role of vitamin D supplementation in regulating serotonin levels and potentially ameliorating depression and related disorders.
- Effect of omega-3 fatty acids supplementation on adipokines: a systematic review and meta-analysis of randomized controlled trialsPublication . Sepidarkish, Mahdi; Rezamand, Gholamreza; Qorbani, Mostafa; Heydari, Hafez; Estêvão, M. Dulce; Omran, Dalia; Morvaridzadeh, Mojgan; Roffey, Darren M.; Farsi, Farnaz; Ebrahimi, Sara; Shokri, Fatemeh; Heshmati, JavadBackground Although a large body of literature reported the beneficial effects of omega-3 fatty acids (omega-3 FAs) consumption on adipokines levels, but recent findings from clinical trials are not univocal. The aim of this systematic review and meta-analysis was to evaluate the effect of omega-3 FAs supplements on adipokines. Methods We searched Medline, Web of Science, Scopus, Embase, and Cochrane Library from inception to August 2020 without any particular language limitations. Outcomes were summarized as standardized mean difference (SMD) with 95% confidence intervals (CIs) estimated from Hedge's g and random effects modeling. Results Fifty-two trials involving 4,568 participants were included. Omega-3 FAs intake was associated with a significant increase in plasma adiponectin levels (n = 43; 3,434 participants; SMD: 0.21, 95% CI: 0.04, 0.37; p = 0.01; I-2= 80.14%). This meta-analysis indicates that supplementing participants with omega-3 fatty acids more than 2000 mg daily and more than 10 weeks resulted in a significant and more favorable improvement in plasma adiponectin levels. However, omega-3 FAs intake had no significant effect on leptin levels (SMD: -0.02, 95% CI: -0.20, 0.17, I-2= 54.13%). Conclusion The evidence supports a beneficial effect of omega-3 FAs intake on serum adiponectin levels but does not appear to impact on leptin concentrations. Larger well-designed RCTs are still required to evaluate the effect of omega-3 FAs on leptin in specific diseases.
- Effect of saffron supplementation on oxidative stress parameters: A systematic review and meta‐analysis of randomized placebo‐controlled trialsPublication . Morvaridzadeh, Mojgan; Agah, Shahram; Estêvão, M. Dulce; Hosseini, Ava Sadat; Heydari, Hafez; Toupchian, Omid; Abdollahi, Shima; Persad, Emma; Abu‐Zaid, Ahmed; Rezamand, Gholamreza; Heshmati, JavadOxidative stress (OS), the absence of equilibrium between prooxidants and antioxi dants in the body, has been shown to play a pivotal role in the initiation and pro gression of many diseases. Saffron has been noted for its antioxidant capacity and can be used to improve OS parameters in unhealthy patients. Our aim was to evalu ate the efficacy of saffron supplementation on OS parameters in unhealthy patients in randomized controlled trials (RCTs). We searched Medline, EMBASE, Cochrane CENTRAL, Scopus, and Web of Science without language restrictions for RCTs up until April 2021. Studies were included if they compared any form of saffron sup plementation to placebo or no supplementation on OS parameters in unhealthy pa tients. Using a random-effects model with calculated standardized mean difference (SMD) and 95% confidence intervals (CI), we quantitatively synthesized the data. Heterogeneity was assessed using Cochrane's I 2 values. Ten randomized controlled trials were eligible for this review. Seven were included in the meta-analysis and indicated an association between saffron intake and a statistically significant decrease in malondialdehyde (MDA) levels (SMD: −0.40; 95% CI: −0.63, −0.17; I 2 = 32.6%) and a significant increase in total antioxidant capacity (TAC, SMD: 0.24; 95% CI: 0.05, 0.42; I 2 = 00.0%). Saffron intake was shown to significantly impact MDA and TAC, indicating its beneficial properties in improving OS in unhealthy patients. However, additional RCTs are required to evaluate the effect on other OS parameters.
- Effect of synbiotic bread containing lactic acid on blood lipids and apolipoproteins in patients with type 2 diabetes: A randomized controlled trialPublication . Ghafouri, Atie; Heshmati, Javad; Heydari, Iraj; Shokouhi Shoormasti, Raheleh; Estêvão, M. Dulce; Hoseini, Ava Sadat; Morvaridzadeh, Mojgan; Akbari‐Fakhrabadi, Maryam; Farsi, Farnaz; Zarrati, Mitra; Pizarro, Ana Beatriz; Shidfar, Farzad; Ziaei, SomayehRecently, the use of synbiotics for managing various diseases has dramatically increased. Synbiotics have been shown to be a good approach to influence the composition of the gut microbiota with positive health effects. Management of type 2 diabetes mellitus (T2DM) complications is one of the reasons for the ingestion of synbiotics and so the aim of the current study was to determine the effects of synbiotic bread intake on markers of lipid profile in T2DM patients. One hundred T2DM patients (age between 20 and 60 years) were randomly assigned to four groups to consume different types of synbiotic bread, three times/day, for 8 weeks: "synbiotic + lactic acid" (n = 25; IV), "synbiotic" (n = 25; III), "lactic acid brad" (n = 25; II), or "control" (a = 25; I). The measured outcomes included anthropometric characteristics, glycemic control parameters, blood lipids, and apolipoproteins. The consumption of "synbiotic + lactic acid bread" (group IV) and "lactic acid bread" (group II) led to a significant decrease in total cholesterol (TC) and glycated hemoglobin (HbA1c) compared to the "control bread." The HbA1c levels were also significantly lower when compared to group II. Additionally, apolipoprotein A (Apo A1) levels were significantly decreased in group IV, compared to control and other groups (post hoc analysis). No significant differences between groups were observed for triglyceride (TG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), and apolipoprotein B100 (Apo B100) levels. The observed results show that the synbiotic bread (with or without lactic acid) promoted a decrease in total cholesterol (TC) and Apo A1 in diabetic patients when consumed daily for 8 weeks.
- Effects of body weight regain on leptin levels: a systematic review and meta-analysisPublication . Rostami Rayeni, Najme; Abdollahzad, Hadi; Alibakhshi, Pooya; Morvaridzadeh, Mojgan; Heydari, Hafez; Dehnad, Afsaneh; Khorshidi, Masoud; Izadi, Azimeh; Shidfar, Farzad; Estêvão, Dulce; Omidi, Amirhosein; Heshmati, JavadBackground: There are different changes observed before and after diet therapy, and also after weight regain. However, there is not sufficient information regarding weight regain and hormonal changes. Purpose: The purpose of this study was to review the connection between weight regain and leptin concentration levels. Methods: MEDLINE, SCOPUS, Web of Science, and the Cochrane Library were searched for interventional articles published from January 1, 1980, to June 30, 2020. Randomized clinical trials with parallel or cross over design assessing leptin concentrations at the baseline and at the end of study were reviewed. Two independent reviewers extracted data related to study design, year of publication, country, age, gender, body mass index (BMI), duration of the following up period and mean +/- SD of other intended variables. Results: Four articles were included, published between 2004 and 2016. Three of them were conducted in the US and one of them in Netherland. Sample size of the studies ranged between 25 and 148 participants. The range of following up period was from13 to 48 weeks. The age range of participants was from 34 to 44 years. Our analysis shows that weight regain could reduce leptin levels, but this change is not statistically significant. Conclusion: This review suggests that weight regain may induce a non-significant reduction in leptin level. However, the limited number and great heterogeneity between the included studies may affect the presented results and there are still need to well-designed, large population studies to determine the relationship between weight regain and leptin levels.
- Effects of vitamin D supplementation on bone health and bone-related parameters in HIV-infected patients: A systematic review and meta-analysisPublication . Rezamand, Gholamreza; Estêvão, M. Dulce; Morvaridzadeh, Mojgan; Akbari, Abolfazl; Tabaeian, Seidamir Pasha; Pizarro, Ana Beatriz; Malekahmadi, Mahsa; Hasani, Motahareh; Roffey, Darren M.; Mirzaei, Alireza; Heshmati, JavadPurpose: There is growing evidence that bone health is decreased in individuals with HIV infection. Vitamin D deficiency is also highly prevalent among HIV-infected patients. The literature was systematically reviewed to determine whether bone health and bone-related parameters may improve with vitamin D supplementation in HIV-infected individuals. Methods: Four databases were systematically searched for randomized clinical trials of vitamin D supplementation in HIV infection, published from January 1990 to September 2021. No language or publication restrictions were applied. Standardized mean differences (SMD) with 95% CIs are reported. A random-effects model was used to perform meta-analysis. Findings: Ten studies met the inclusion criteria (N = 733 participants at study completion). The mean ages of the patients in the included trials ranged from 10 to 49 years. The meta-analysis indicated that with vitamin D supplementation, serum 25-hydroxy vitamin D (25[OH]D) level was significantly increased (SMD, 1.86; 95% CI, 1.02 to 2.70; I-2 = 94.4%), but there were no significant effects on levels of serum 1,25-dihydroxy vitamin D (1,25-[OH](2)D) (SMD, 0.29; 95% CI, -0.07 to 0.64; I-2 = 67.4%), total bone mineral density (SMD, 0.07; 95% CI, -0.23 to 0.37; I-2 = 00.0%), spine bone mineral density (SMD, 0.15; 95% CI, -0.19 to 0.49; I-2 = 17.3%), and parathyroid hormone level (SMD, -0.18; 95% CI, -0.37 to 0.02; I-2 = 1.2%) in HIV-infected patients. (C) 2022 Elsevier Inc.
- Sumac fruit supplementation improve glycemic parameters in patients with metabolic syndrome and related disorders: a systematic review and meta-analysisPublication . Ghafouri, Atie; Estêvão, M. Dulce; Alibakhshi, Pooya; Pizarro, Ana Beatriz; Kashani, Amirhossein Faghihi; Persad, Emma; Heydari, Hafez; Hasani, Motahareh; Heshmati, Javad; Morvaridzadeh, MojganBackground: Metabolic syndrome (MetS) is the one of the main causes of mortality worldwide. Several randomized controlled trials (RCTs) have revealed the beneficial effects of sumac (Rhus coriaria) on cardiometabolic risk factors. However, the entirety of the evidence has yet to be summarized in a systematic review. Objective: The aim of this systematic review and meta-analysis was to evaluate the effects of sumac on several cardiometabolic risk factors in patients with MetS and related disorders. Methods: We reviewed Medline, Scopus, Web of Science and Cochrane CENTRAL for RCTs published from inception to December 2020 evaluating the impact of sumac in adults with MetS or related disorders. Outcome measures included anthropometric measures, glycemic indices, blood lipids, blood pressure and liver enzymes. Pooled effect sizes were reported as standard mean differences (SMDs) and 95% confidence intervals (CIs). Trials were pooled using a random effects model. Results: Nine studies enrolling 526 participants met the inclusion criteria for this meta-analysis. Our results indicate that sumac intake significantly decrease fasting blood sugar (FBS) (SMD: 0.28; 95% CI: 0.54, -0.02; I-2 = 00.0%), insulin (SMD: 0.67; 95% CI: 0.99, -0.36; I-2 = 03.7%), and insulin resistance (measured through the Homeostatic Model Assessment of Insulin Resistance (HOMA-IR)) (SMD: 0.79; 95% CI: 1.24, -0.34; I-2 = 50.1%). Sumac intake did not have a significant impact on weight, body mass index (BMI), waist circumference (WC), hip circumference (HC), waist to hip ratio (WHR), HbA1c, total cholesterol (TC), triglycerides (TG), high density lipoproteins (HDL), low density lipoprotein (LDL), systolic blood pressure (SBP), diastolic blood pressure (DBP), aspartate transaminase (AST) and alanine transaminase (ALT). Conclusion: Sumac, as an adjuvant therapy, may decrease serum levels of FBS, insulin and HOMA-IR. However, due to high heterogeneity in the included studies, these findings must be interpreted with great caution. Larger, well-designed placebo-controlled clinical trials are still needed to further evaluate the capacity of sumac as a complementary treatment to control MetS risk factors.
- The effect of almond intake on cardiometabolic risk factors, inflammatory markers, and liver enzymes: A systematic review and meta‐analysisPublication . Morvaridzadeh, Mojgan; Qorbani, Mostafa; Shokati Eshkiki, Zahra; Estêvão, M. Dulce; Mohammadi Ganjaroudi, Negar; Toupchian, Omid; Abdollahi, Shima; Pizarro, Ana Beatriz; Abu‐Zaid, Ahmed; Zadro, Joshua R.; Heshmati, Javad; Ziaei, SomayehAlmond intake may be correlated with improvements in several cardiometabolic parameters, but its effects are controversial in the published literature, and it needs to be comprehensively summarized. We conducted a systematic search in several international electronic databases, including MEDLINE, EMBASE, Scopus, Web of Science, Cochrane Central Register of Controlled Trials, and until April 2021 to identify randomized controlled trials that examined the effects of almond consumption on cardiometabolic risk factors, inflammatory markers, and liver enzymes. Data were pooled using the random-effects model method and presented as standardized mean differences (SMDs) with 95% confidence intervals (CIs). Twenty-six eligible trials were analyzed (n = 1750 participants). Almond intake significantly decreased diastolic blood pressure, total cholesterol, triglyceride, low-density lipoprotein (LDL), non-high-density lipoprotein (HDL), and very LDL (p < 0.05). The effects of almond intake on systolic blood pressure, fasting blood glucose, insulin, hemoglobin A1c, homeostatic model assessment of insulin resistance, C-peptide, alanine aminotransferase, aspartate aminotransferase, gamma-glutamyl transferase, C-reactive protein (CRP), hs-CRP (high sensitivity C-reactive protein), interleukin 6, tumor necrosis factor-alpha, ICAM (Intercellular Adhesion Molecule), VCAM (Vascular Cell Adhesion Molecule), homocysteine, HDL, ox-LDL, ApoA1, ApoB, and lipoprotien-a were not statistically significant (p > .05). The current body of evidence supports the ingestion of almonds for their beneficial lipid-lowering and antihypertensive effects. However, the effects of almonds on antiinflammatory markers, glycemic control, and hepatic enzymes should be further evaluated via performing more extensive randomized trials.
- The effect of chromium intake on oxidative stress parameters: A systematic review and meta-analysisPublication . Morvaridzadeh, Mojgan; Estêvão, M. Dulce; Qorbani, Mostafa; Heydari, Hafez; Hosseini, Ava sadat; Fazelian, Siavash; Belančić, Andrej; Persad, Emma; Rezamand, Gholamreza; Heshmati, JavadBackground: Trivalent chromium is a trace element thought to have a beneficial effect on oxidative stress (OS) parameters and inflammation. This review aimed to investigate the dose-response of chromium and summarize the effects of chromium supplementation on OS parameters in the literature. Methods: MEDLINE, Scopus, Web of Science and Cochrane CENTRAL databases were searched for RCTs published from inception to January 2021 evaluating the effect of chromium supplementation on OS parameters, namely MDA, TBARS, SOD, TAS, CAT, GPx, and GSH. A random-effects model was used to pool data and calculated standard mean difference and 95 % confidence intervals. Quantified heterogeneity among studies was assessed through Cochrane’s I 2 values. Results: Nine studies enrolling 550 participants met the inclusion criteria. The obtained results indicate that chromium supplementation significantly increases TAC (SMD: 0.46; 95 % CI: 0.08, 0.84; I 2 = 00.0 % n = 2) and significantly decreases MDA levels (SMD: − 0.46; 95 % CI: − 0.86, -0.07; I 2 = 52.4 % n = 5). Supplementation did not significantly change CAT, GPx, GSH, SOD, TAS, and TBARS. Conclusion: Chromium supplementation may improve OS parameters, however, due to high heterogeneity observed in the included studies, these findings should be interpreted with caution. Large RCTs on various patient groups evaluating the impact of chromium supplementation are needed to allow an adequate generalization of the benefits of chromium on human health.
- The effect of Conjugated Linoleic Acid intake on oxidative stress parameters and antioxidant enzymes: A systematic review and meta-analysis of randomized clinical trialsPublication . Morvaridzadeh, Mojgan; Estêvão, M. Dulce; Morvaridi, Mehrnaz; Belančić, Andrej; Mohammadi, Shooka; Hassani, Motahareh; Heshmati, Javad; Ziaei, SomayehConjugated Linoleic Acid (CLA) are thought to pose beneficial effects on inflammatory responses and oxidative stress (OS). Thus, the present systematic review and meta-analysis of randomized controlled trials (RCTs) aimed to assess the net effects of CLA supplementation on various OS parameters and antioxidant enzymes. PubMed/ MEDLINE, Scopus, Web of Science, and Cochrane Central Register of Controlled Trials databases were searched for publications on CLA supplementation effects on OS parameters up to March 2021. The data extracted from eligible studies were expressed as standardized mean difference with 95% confidence intervals and then combined into meta-analysis using the random-effects model. Overall, 11 RCTs (enrolling 586 participants) met the inclusion criteria and were included in meta-analysis; however, since those trials evaluated different OS parameters, meta-analysis was carried out considering different sets for each parameter separately. According to our results, CLA supplementation significantly increases 8-iso-PGF(2 alpha )urinary concentration (SMD: 2; 95% CI: 0.74, 3.27; I-2 = 87.7%). On contrary, the intervention does not seem to change 15-keto-dihydro-PGF(2 alpha )urinary concentration, nor the serum levels of CAT, SOD, GPx and MDA. Taken all together, CLA supplementation does not appear to have substantial effects on OS markers in general; albeit due to relatively small sample size and high level of heterogeneity between studies, the obtained findings should be interpreted with caution. Further large well-designed RCTs, investigating the impact of CLA and including various groups of patients, are still needed.