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result(s) for
"Mansouri, Mehdi"
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The effect of the mobile “blood pressure management application” on hypertension self-management enhancement: a randomized controlled trial
by
Mansouri, Mehdi
,
Hosseini, Hamed
,
Eftekhar, Hassan
in
Biomedicine
,
Blood pressure
,
Care and treatment
2021
Background
Self-management of hypertension is of great significance given its increasing incidence and its associated disabilities. In view of the increased use of mobile health in medicine, the present study evaluated the effect of a self-management application on patient adherence to hypertension treatment.
Methods
This clinical trial was performed on 120 hypertensive patients who were provided with a mobile intervention for 8 weeks and followed up until the 24th week. Data on the primary outcome (adherence to treatment) and secondary outcomes (adherence to the DASH diet, regular monitoring of blood pressure, and physical activity) were collected using a questionnaire and a mobile application, respectively. The inter-group change difference over time was analyzed using repeated measures ANOVA (general linear model).
Results
The treatment adherence score increased by an average of 5.9 (95% CI 5.0–6.7) in the intervention group compared to the control group. The scores of “adherence to the low-fat and low-salt diet plans” were 1.7 (95% CI 1.3–2.1) and 1.5 (95% CI 1.2–1.9), respectively. Moreover, moderate physical activity increased to 100.0 min (95% CI 61.7–138.3) per week in the intervention group.
Conclusion
The treatment and control of blood pressure require a multifaceted approach given its complexity and multifactorial nature. Considering the widespread use of smartphones, mHealth interventions can be effective in self-management and better patient adherence to treatments. Our results showed that this application can be used as a successful tool for hypertension self-management in patients attending public hospitals in developing countries.
Trial registration
Iran Randomized Clinical Trial Center
IRCT2015111712211N2
. Registered on 1 January 2016
Journal Article
Whole genomes and transcriptomes reveal adaptation and domestication of pistachio
by
Mansouri, Mehdi
,
Esmailizadeh, Ali
,
Lu, Bing-She
in
Adaptation, Biological
,
Animal Genetics and Genomics
,
Artificial selection
2019
Background
Pistachio (
Pistacia vera
), one of the most important commercial nut crops worldwide, is highly adaptable to abiotic stresses and is tolerant to drought and salt stresses.
Results
Here, we provide a draft de novo genome of pistachio as well as large-scale genome resequencing. Comparative genomic analyses reveal stress adaptation of pistachio is likely attributable to the expanded cytochrome P450 and chitinase gene families. Particularly, a comparative transcriptomic analysis shows that the jasmonic acid (JA) biosynthetic pathway plays an important role in salt tolerance in pistachio. Moreover, we resequence 93 cultivars and 14 wild
P. vera
genomes and 35 closely related wild
Pistacia
genomes, to provide insights into population structure, genetic diversity, and domestication. We find that frequent genetic admixture occurred among the different wild
Pistacia
species. Comparative population genomic analyses reveal that pistachio was domesticated about 8000 years ago and suggest that key genes for domestication related to tree and seed size experienced artificial selection.
Conclusions
Our study provides insight into genetic underpinning of local adaptation and domestication of pistachio. The
Pistacia
genome sequences should facilitate future studies to understand the genetic basis of agronomically and environmentally related traits of desert crops.
Journal Article
Identification and comparison of intestinal microbial diversity in patients at different stages of hepatic cystic echinococcosis
by
Mansouri, Mehdi
,
Shafiei, Mohammad
,
Aghassi, Hossein
in
631/326/2565
,
631/326/2565/2134
,
631/326/2565/2142
2024
There is a significant focus on the role of the host microbiome in different outcomes of human parasitic diseases, including cystic echinococcosis (CE). This study was conducted to identify the intestinal microbiome of patients with CE at different stages of hydatid cyst compared to healthy individuals. Stool samples from CE patients as well as healthy individuals were collected. The samples were divided into three groups representing various stages of hepatic hydatid cyst: active (CE1 and CE2), transitional (CE3), and inactive (CE4 and CE5). One family member from each group was selected to serve as a control. The gut microbiome of patients with different stages of hydatid cysts was investigated using metagenomic next-generation amplicon sequencing of the V3–V4 region of the 16S rRNA gene. In this study, we identified 4862 Operational Taxonomic Units from three stages of hydatid cysts in CE patients and healthy individuals with a combined frequency of 2,955,291. The most abundant genera observed in all the subjects were
Blautia
,
Agathobacter
,
Faecalibacterium
,
Bacteroides
,
Bifidobacterium
, and
Prevotella
. The highest microbial frequency was related to inactive forms of CE, and the lowest frequency was observed in the group with active forms. However, the lowest OTU diversity was found in patients with inactive cysts compared with those with active and transitional cyst stages. The genus
Agatobacter
had the highest OTU frequency.
Pseudomonas, Gemella,
and
Ligilactobacillus
showed significant differences among the patients with different stages of hydatid cysts. Additionally,
Anaerostipes
and
Candidatus
showed significantly different reads in CE patients compared to healthy individuals
.
Our findings indicate that several bacterial genera can play a role in the fate of hydatid cysts in patients at different stages of the disease.
Journal Article
Metatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirus
by
Mansouri, Mehdi
,
Hosseinipour, Akbar
,
Ghorani, Shahrbanou
in
Amino acid sequence
,
Amino acids
,
Analysis
2024
Background
Next-generation Sequencing (NGS) combined with bioinformatic analyses constitutes a powerful approach for identifying and characterizing previously unknown viral genomes. In this study, leaf samples from bitter apple plants (
Citrullus colocynthis
(L.) Schrad) exhibiting symptoms such as dwarfing, leaf crinkling, and chlorosis were collected from the southern part of Kerman province, Iran.
Results
Putative infecting viruses were identified through
de novo
assembly of sequencing reads using various tools, followed by BLAST analysis. Complete genomes for Squash vein yellowing virus (SqVYV), Citrus-associated rhabdovirus (CiaRV), and a novel polerovirus-related strain termed Bitter apple aphid-borne yellows virus (BaABYV) were assembled and characterized. Additionally, a partial genome for Watermelon mosaic virus (WMV) was assembled. The genomic organization of the BaABYV was determined to be 5’-ORF0-ORF1-ORF1,2-ORF3a-ORF3-ORF3,5-ORF4-3’. Amino acid sequence identities for inferred proteins (P0 and P1, P1,2) with known poleroviruses were found to be the 90% species delineation limit, implying that BaABYV should be considered a new member of the genus
Polerovirus.
Recombination events were observed in the BaABYV and WMV strains; such events were not found in the CiaRV strain.
Conclusions
Molecular evidence from this study suggests that
C. colocynthis
is a reservoir host of several plant viruses. Among them, BaABYV is proposed as a new member of the genus
Polerovirus
. Furthermore, the CiaRV strain has been reported for the first time from Iran.
Journal Article
MicroRNA-Transcription factor regulatory networks in the early strobilar development of Echinococcus granulosus protoscoleces
by
Mansouri, Mehdi
,
Rezaie, Masoud
,
Rosenzvit, Mara C.
in
Adaptability
,
Analysis
,
Animal Genetics and Genomics
2023
Background
Echinococcus granulosus
sensu lato has a complex developmental biology with a variety of factors relating to both intermediate and final hosts. To achieve maximum parasite adaptability, the development of the cestode is dependent on essential changes in transcript regulation. Transcription factors (TFs) and miRNAs are known as master regulators that affect the expression of downstream genes through a wide range of metabolic and signaling pathways. In this study, we aimed to develop a regulatory miRNA-Transcription factor (miRNA-TF) network across early developmental stages of
E. granulosus
protoscoleces by performing
in silico
analysis, and to experimentally validate TFs expression in protoscoleces obtained from in vitro culture, and from in vivo experiments.
Results
We obtained list of 394 unique
E. granulosus
TFs and matched them with 818 differentially expressed genes which identified 41 predicted TFs with differential expression. These TFs were used to predict the potential targets of 31 differentially expressed miRNAs. As a result, eight miRNAs and eight TFs were found, and the predicted network was constructed using Cytoscape. At least four miRNAs (egr-miR-124a, egr-miR-124b-3p, egr-miR-745-3p, and egr-miR-87-3p) and their corresponding differentially expressed TFs (Zinc finger protein 45, Early growth response protein 3, Ecdysone induced protein 78c and ETS transcription factor elf 2) were highlighted in this investigation. The expression of predicted differentially expressed TFs obtained from in vitro and in vivo experiments, were experimentally validated by quantitative polymerase chain reaction. This confirmed findings of RNA-seq data.
Conclusion
miRNA-TF networks presented in this study control some of the most important metabolic and signaling pathways in the development and life cycle of
E. granulosus
, providing a potential approach for disrupting the early hours of dog infection and preventing the development of the helminth in the final host.
Journal Article
Transcriptomic analysis of Aegilops tauschii during long-term salinity stress
by
Mansouri, Mehdi
,
Naghavi, Mohammad Reza
,
Ghasem Hosseini Salekdeh
in
Abiotic stress
,
Aegilops tauschii
,
Carbohydrate metabolism
2019
Aegilops tauschii is the diploid progenitor of the bread wheat D-genome. It originated from Iran and is a source of abiotic stress tolerance genes. However, little is known about the molecular events of salinity tolerance in Ae. tauschii. This study investigates the leaf transcriptional changes associated with long-term salt stress. Total RNA extracted from leaf tissues of control and salt-treated samples was sequenced using the Illumina technology, and more than 98 million high-quality reads were assembled into 255,446 unigenes with an average length of 1398 bp and an N50 of 2269 bp. Functional annotation of the unigenes showed that 93,742 (36.69%) had at least a significant BLAST hit in the SwissProt database, while 174,079 (68.14%) showed significant similarity to proteins in the NCBI nr database. Differential expression analysis identified 4506 salt stress-responsive unigenes. Bioinformatic analysis of the differentially expressed unigenes (DEUs) revealed a number of biological processes and pathways involved in the establishment of ion homeostasis, signaling processes, carbohydrate metabolism, and post-translational modifications. Fine regulation of starch and sucrose content may be important features involved in salt tolerance in Ae. tauschii. Moreover, 82% of DEUs mapped to the D-subgenome, including known QTL for salt tolerance, and these DEUs showed similar salt stress responses in other accessions of Ae. tauschii. These results could provide fundamental insight into the regulatory process underlying salt tolerance in Ae. tauschii and wheat and facilitate identification of genes involved in their salt tolerance mechanisms.
Journal Article
Genome-wide transcriptome analysis of the early developmental stages of Echinococcus granulosus protoscoleces reveals extensive alternative splicing events in the spliceosome pathway
by
Mansouri, Mehdi
,
Harandi, Majid Fasihi
,
McManus, Donald P.
in
Adaptation
,
Alternative Splicing
,
Alzheimer's disease
2021
Background
The complex life cycle of
Echinococcus granulosus
involves numerous environmental conditions within different intermediate and definitive hosts. This requires adaptation at different levels of transcript regulation. Alternative splicing (AS) and the related cellular functions as one of the major fields of post-genomics has been poorly studied in tapeworms. In the present study, we investigated AS events and their potential biological effects in
E. granulosus
.
Methods
Whole transcriptome sequencing data of four groups of protoscoleces were prepared for RNA-seq library construction. Fresh protoscoleces were either used as non-induced controls (NT group) or incubated for 15 min with pepsin (PEP group) and cultivated in a biphasic medium for 12 and 24 h (12 and 24 h groups). The frequency and different types of AS events were identified using rMATS software. Functional annotations and gene ontology of differential AS (DAS) genes were performed using Blast2GO software. AS events were experimentally validated by PCR on the protoscolex cDNAs using specific primers for each gene.
Results
At least one AS event was found in 38.1% of the genes (3904 out of 10,245) in the protoscoleces during early strobilar development. The genes were associated primarily with cellular and metabolic processes and binding and catalytic activity. KEGG pathway analysis of DAS events revealed a number of genes belonging to different components of the spliceosome complex. These genes tended to belong to common SR proteins, U1-related factors, U2-related factors, complex A-specific factors and other splicing-related proteins.
Conclusions
The high number of AS events in the transcriptome regulatory mechanisms indicates the essential rapid molecular processes required by the parasite for adaptation in different environments.
Graphical Abstract
Journal Article
Assessment of the Cu phytoremediation potential of Chrysanthemum indicum L. and Tagetes erecta L. using analysis of growth and physiological characteristics
by
Mansouri, Mehdi
,
Sarcheshmehpour, Mehdi
,
Kavousi, Hamid Reza
in
antioxidant enzymes
,
Aquatic Pollution
,
Atmospheric Protection/Air Quality Control/Air Pollution
2024
In the current study, the Cu phytoremediation ability of two ornamental plants,
Chrysanthemum indicum
L. and
Tagetes erecta
L., was tracked concerning the growth and physiological responses. Plants were subjected to varying concentrations of Cu (0, 100, 200, and 400 mg/kg) under the pot experiment for 8 weeks. The results showed that the measured growth and physiological characteristics declined in
T. erecta
shoots and roots at all tested treatments compared with the control. However, in
C. indicum
at 100 mg/kg, shoot biomass, shoot total soluble protein, and leaves number remained equal to that of the control and then reduced by rising Cu concentrations, compared with the control. Also, results indicated that in
C. indicum
, after 56 days of exposure to Cu, the chlorophyll pigments content markedly increased and reached a maximum level at 100 mg/kg dose and gradually declined with enhancing Cu concentrations, compared with the control. Other measured growth and physiological parameters decreased in both tissues of
C. indicum
in response to Cu usage in the growth medium. The carotenoid content of
T. erecta
decreased in all studied Cu levels in comparison to the control, but in
C. indicum
remained unaffected up to 200 mg/kg Cu in comparison to the control and then enhanced with increasing Cu level. The augmentation of antioxidant enzyme activity in two species, especially in roots, reflected the incident of Cu stress as demonstrated by elevated MDA and ion leakage levels. Data concerning copper accumulation in tissues, TF, and BAF showed
T. erecta
is a weak Cu accumulator and seems not to be an appropriate candidate for Cu phytoremediation. However, the Cu content in shoots and roots of
C. indicum
increased significantly with an increment in applied Cu level. Also,
C. indicum
accumulated higher Cu concentrations in the roots than in shoots and exhibited TF < 1, 0.1 < BAF
root
< 1, and can be considered as a Cu excluder by the phytostabilization mechanism.
Journal Article
Multivariate analysis of morpho-physiological traits in Amaranthus tricolor as affected by nitric oxide and cadmium stress
by
Mansouri, Mehdi
,
Baniasadi, Fatemeh
,
Arghavani, Masoud
in
Amaranth
,
Amaranthus tricolor
,
Aquatic Pollution
2022
Edible amaranth (
Amaranthus tricolor
L.) is used as a food-medicine or ornamental plant, and despite its importance, there are few reports associated with cadmium (Cd) stress. This study aimed to appraise the crosstalk between sodium nitroprusside (SNP), as a source of nitric oxide (NO), and cadmium toxicity on growth and physiological traits in edible amaranth by using different multivariate statistical methods. The results showed that growth-related traits of
A. tricolor
were significantly reduced under Cd stress. Contrarily, Cd treatments increased lipid peroxidation and reduced total protein content. Delving on the results of SNP application showed the suitability of its medium level (100 µM) on increasing the growth-related traits and also plant tolerance to Cd stress via lowering the lipid peroxidation and radical molecules production due to the higher activities of superoxide dismutase and catalase. Increasing the amount of Cd in roots and shoots, as the result of Cd treatment, reduced the growth and production of
A. tricolor
plants by high rates (over 50% in 60 mg kg
−1
Cd level), indicating its susceptibility to high Cd toxicity. Contrarily, treating plants with SNP showed no effect on shoot Cd content, while it significantly increased Cd allocation in the root, which might be attributable to the protective effect of NO on Cd toxicity by trapping Cd in the root. Subsequently, the application of a medium level of SNP (around 100 µM) is recommendable for
A. tricolor
plant to overcome the negative impacts of Cd toxicity. Moreover, according to the results of heatmap and biplot, under no application of Cd, the application of 100 µM SNP showed a great association with growth-related traits indicating the effectiveness of SNP on the productivity of this species even under no stress situations.
Journal Article
Comparative assessment of chloroplast transcriptional responses highlights conserved and unique patterns across Triticeae members under salt stress
by
Mansouri, Mehdi
,
Mirzaei, Saeid
,
Sablok, Gaurav
in
Abiotic stress
,
ATP synthase
,
Chloroplasts
2018
Chloroplast functional genomics, in particular understanding the chloroplast transcriptional response is of immense importance mainly due to its role in oxygenic photosynthesis. As a photosynthetic unit, its efficiency and transcriptional activity is directly regulated by reactive oxygen species during abiotic and biotic stress and subsequently affects carbon assimilation, and plant biomass. In crops, understanding photosynthesis is crucial for crop domestication by identifying the traits that could be exploited for crop improvement. Transcriptionally and translationally active chloroplast plays a key role by regulating the PSI and PSII photo-reaction centres, which ubiquitously affects the light harvesting. Using a comparative transcriptomics mapping approach, we identified differential regulation of key chloroplast genes during salt stress across Triticeae members with potential genes involved in photosynthesis and electron transport system such as CytB6f. Apart from differentially regulated genes involved in PSI and PSII, we found widespread evidence of intron splicing events, specifically uniquely spliced petB and petD in Triticum aestivum and high proportion of RNA editing in ndh genes across the Triticeae members during salt stress. We also highlight the role and differential regulation of ATP synthase as member of CF0CF1 and also revealed the effect of salt stress on the water-splitting complex under salt stress. It is worthwhile to mention that the observed conserved down-regulation of psbJ across the Triticeae is limiting the assembly of water-splitting complexes and thus making the BEP clade Triticeae members more vulnerable to high light during the salt stress. Comparative understanding of the chloroplast transcriptional dynamics and photosynthetic regulation will improve the approaches for improved crop domestication.
Journal Article