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1.
Environ Res ; 258: 119413, 2024 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-38876422

RESUMO

Frequent detection of terbutaline in wastewater highlights its potential risks to human health associated in the environment. Exposure to terbutaline through contaminated water sources or food chain have adverse effects to human health. This work emphasized on the removal of terbutaline from wastewater using adsorption technology. Mechanochemically synthesized [Cu(INA)2] metal-organic frameworks (MOFs) and its magnetic composite ([Cu(INA)2]-MOF@Fe3O4) are designed with higher specific surface areas and tailored features to accommodate the molecular size and structure of terbutaline. Thus, batch experiment has been conducted using the [Cu(INA)2]-MOF and [Cu(INA)2]-MOF@Fe3O4 for the terbutaline adsorption. The adsorption efficiency achieved by the MOFs was 91.8% and 99.3% for the Cu(INA)2]-MOF and [Cu(INA)2]-MOF@Fe3O4 respectively. The optimum for the adsorption study included terbutaline concentration of 40 mg/L, adsorbent dose of 5 mg/L, pH of 11, temperature of 25 °C and equilibrium time of 40 min. The kinetics and isotherms have been described by pseudo-second order and Langmuir models, while the thermodynamics revealed the exothermic and spontaneous nature of the process. The promising performance of the MOFs is manifested on the ease of regeneration and reusability, achieving adsorption efficiency of 85.0% and 94.7% by the Cu(INA)2]-MOF and [Cu(INA)2]-MOF@Fe3O4, respectively at five consecutive cycles. The higher performance of the MOFs demonstrates their excellent potentialities for the terbutaline adsorption from the aqueous solution.

2.
Plast Reconstr Surg Glob Open ; 12(5): e5761, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38706466

RESUMO

Background: Plastic and reconstructive surgery services need to be improved in developing African countries. Research and article publications from those countries are limited. This review was conducted to identify published articles from Sudan in the area of plastic and reconstructive surgery. Methods: This review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines. The Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines were used for the preparation of this systematic review. A comprehensive systematic search was performed using PubMed, ScienceDirect, and Web of Science databases. Articles published in Sudan, specifically in the area of plastic and reconstructive surgery, and written in English were included in this review. Results: The total number of articles that fulfilled the inclusion criteria was 23. The articles were written from 1969 to 2023. Only two articles were published in the 20th century. The most common study type was a retrospective study of eight articles, and the most common study area was Khartoum Teaching Hospital. Regarding the publishing journals, the number of subscription journals was six (30%), whereas open access was 17 (70%). Conclusion: This review demonstrates the lack of articles published on plastic surgery in Sudan. Further investigation is needed to determine the challenges and problems associated with possible clarifications.

3.
Plants (Basel) ; 13(9)2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38732394

RESUMO

Soil salinity hampers durum wheat plant growth and development at various stages. The detrimental effects of salinity on plant cellular and physiological processes necessitate strategies to alleviate its negative impact and improve overall crop yield. This study investigates the efficacy of plant growth-promoting rhizobacteria (PGPR) bacteria inoculation in mitigating salinity stress on two durum wheat genotypes with contrasting degrees of salinity tolerance (Tamaroi, salt-sensitive and Line 5004, salt-tolerant) under greenhouse and field conditions. For this purpose, two halotolerant-PGPR strains, Pseudomonas jordanii strain G34 and Oceanobacillus jordanicus strain GSFE11, were utilized for the inoculation. For the greenhouse experiment, the two selected genotypes were subjected to salinity at the flag leaf stage with continuous irrigation with a Hoagland solution supplemented with 50 mM NaCl. Field experiments were conducted across two locations with contrasting salinity levels over two growing seasons. At the end of both experiments, various parameters including total weight, spike weight, grain weight, spike number, spikelet number, grains per spike and thousand kernel weight were measured. The halotolerant PGPRs, P. jordanii strain G34 and O. jordanicus strain GSFE11, proved effective in alleviating salinity-induced adverse effects and enhancing growth under greenhouse and field conditions. However, bacterial inoculation significantly improved growth in the salt-sensitive genotype and such effects were not observed in the tolerant genotype, emphasizing genotype-specific responses. Notably, inoculation with O. jordanicus increased Na+ and Ca2+ uptake in the salt-tolerant "Line 5004" without hindering growth, suggesting one of its potential mechanisms for salt tolerance. This research demonstrates the potential of halotolerant-PGPR inoculation in enhancing durum wheat production in saline environments, but also underscores the importance of understanding genotype-specific responses for tailored interventions.

4.
Environ Res ; 252(Pt 3): 119024, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38692419

RESUMO

Environmental pollution has been increasing since last decade due to increasing industrialisation and urbanisation. Various kinds ofenvironmental pollutants including carbon dioxide (CO2), dyes, pharmaceuticals, phenols, heavy metals along with many organic and inorganic species have been discovered in the various environmental compartments which possess harmful impacts tox human health, wildlife, and ecosystems. Thus, various efforts have been made through regulations, technological advancements, and public awareness campaigns to reduce the impact of the pollution. However, finding suitable alternatives to mitigate their impacts remained a challenge. Metal-organic frameworks (MOFs) are one of the advanced materials with unique features such as high porosity and stability which exhibit versatile applications in environmental remediation. Their composites with titanium oxide nanoparticles (TiO2) have been discovered to offer potential feature such as light harvesting capacity and catalytic activity. The composite integration and properties have been confirmed through characterization using surface area analysis, scanning electron/transmission electron microscopy, atomic force microscopy, fourier transformed infrared spectroscopy, X-ray diffraction analysis, X-ray photoelectron spectroscopy, thermogravimetric analysis, and others. Thus, this work rigorously discussed potential applications of the MOF@TiO2 nanomaterials for the CO2 capture and effective utilization in methanol, ethanol, acetone, acetaldehyde, and other useful products that served as fuel to various industrial processes. Additionally, the work highlights the effective performance of the materials towards photocatalytic degradation of both organic and inorganic pollutants with indepth mechanistic insights. The article will offer significant contribution for the development of sustainable and efficient technologies for the environmental monitoring and pollution mitigation.


Assuntos
Dióxido de Carbono , Estruturas Metalorgânicas , Titânio , Titânio/química , Dióxido de Carbono/química , Dióxido de Carbono/análise , Estruturas Metalorgânicas/química , Águas Residuárias/química , Recuperação e Remediação Ambiental/métodos , Nanopartículas/química , Poluentes Químicos da Água/química , Poluentes Químicos da Água/análise
5.
Chemosphere ; 343: 140223, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37734509

RESUMO

Covalent organic frameworks (COFs) are class of porous coordination polymers made up of organic building blocks joined together by covalent bonding through thermodynamic and controlled reversible polymerization reactions. This review discussed versatile applications of COFs for remediation of wastewater containing dyes, emphasizing the advantages of both pristine and modified materials in adsorption, membrane separation, and advanced oxidations processes. The excellent performance of COFs towards adsorption and membrane filtration has been centered to their higher crystallinity and porosity, exhibiting exceptionally high surface area, pore size and pore volumes. Thus, they provide more active sites for trapping the dye molecules. On one hand, the photocatalytic performance of the COFs was attributed to their semiconducting properties, and when coupled with other functional semiconducting materials, they achieve good mechanical and thermal stabilities, positive light response, and narrow band gap, a typical characteristic of excellent photocatalysts. As such, COFs and their composites have demonstrated excellent potentialities for the elimination of the dyes.

6.
Cureus ; 15(7): e42563, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37637610

RESUMO

OBJECTIVES: The purpose of this investigation was to evaluate the effects of the COVID-19 pandemic on the respiratory syncytial virus (RSV) prevention program at our institution across three time frames: 2019-2020, 2020-2021, and 2021-2022. METHODS: We carried out a descriptive, single-site observational study spanning four years, from June 2019 to June 2022. Our study included patients in our institution's RSV program who met our enrollment criteria. We collected information about the number of children receiving immunoprophylaxis, immunoprophylaxis doses, and RSV risk factors. RESULTS: The number of patients receiving immunoprophylaxis dropped across the three periods, from 315 patients in the first period (2019-2020) to 176 in the second period (2020-2021), and further decreased to 128 in the third period (2021-2022). Following the COVID-19 pandemic, there was a 50% reduction in the number of patients receiving immunoprophylaxis. The proportion of RSV-infected patients remained relatively similar in the first and second periods (2.86% and 2.27%, respectively) but increased in the third period (5.47%). In the first period, most patients (60.32%) received seven doses, 11.75% got four to six doses, and 27.95% received three doses or fewer. The second period saw 59.66% of patients receiving four to six doses and 40.34% receiving three doses or fewer. In the third period, a mere 9.38% received four to five doses, while 90.63% got three doses or fewer. CONCLUSIONS: While preventative measures associated with COVID-19 may have helped reduce the number of RSV cases, the pandemic seems to have caused a significant decrease in the number of children receiving immunoprophylaxis and the doses of immunoprophylaxis. More extensive, multicenter research is needed to understand the impact of the COVID-19 pandemic on RSV immunoprophylaxis, its activity, and seasonal patterns fully.

7.
Metabolites ; 13(4)2023 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-37110196

RESUMO

Commiphora gileadensis L. is an important endangered medicinal plant that belongs to the family Burseraceae. In this study, C. gileadensis callus culture was established successfully using mature leaves as explants cultured on Murashige and Skoog (MS) media supplemented with 24.50 µM of indole butyric acid (IBA) and 2.22 µM 6-Benzylaminopurine (BAP) (callus induction media). The obtained callus was maintained on MS medium supplemented with 16.11 µM naphthalene acetic acid (NAA) in combination with 6.66 µM BAP, which resulted in a substantial increase in callus fresh and dry weights. The cell suspension culture was established successfully using liquid callus induction media supplemented with 3.0 mg·L-1 proline. Thereafter, the chemical constituents of different C. gileadensis methanolic extracts (callus, cell suspension, leaves, and seeds) were profiled, and their cytotoxic and antimicrobial properties were investigated. The LC-MS GNPS analyses were applied for chemical profiling of the methanolic plant extracts, and several natural products were identified, including flavonols, flavanones, and flavonoids glycosides, with two unusual families that included puromycin, 10-hydroxycamptothecin, and justicidin B. The methanolic extracts have shown selective antimicrobial and cytotoxic properties against different microbes and cancer cell lines. For instance, leaf extract showed the highest zone of inhibition for Staphylococcus aureus, while cell suspension culture was effective against Staphylococcus epidermidis and Staphylococcus aureus. All extracts showed selective activity against A549 cell lines for the cytotoxicity assay, while the leaf extract had a broad cytotoxic effect against all tested cell lines. This study revealed that C. gileadensis callus and cell suspension cultures can be employed to increase the in vitro formation of biologically active compounds that may have cytotoxicity and antibacterial action against different cancer cell lines and bacterial species. Further studies are required to isolate and identify such constituents that corroborate the observed activities.

8.
Cureus ; 15(12): e50810, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38249219

RESUMO

Background The practice of self-medication (SM) is the use of self-consuming medication without consulting healthcare which carries its own risks. SM patterns differ across populations and are influenced by several factors. This study aimed to assess the prevalence of SM practices in Al-Baha, Saudi Arabia, to identify the factors contributing to this practice and develop effective strategies to decrease its occurrence and associated risks. Methodology This cross-sectional study was conducted in Al Baha Province, Saudi Arabia, over two weeks in July 2023, with a sample of 580 participants. Eligible participants were males and females, both Saudi and non-Saudi, aged 18-65. The data were collected using a self-administered online questionnaire. Results Of all participants, 48.7% admitted taking medications without a healthcare practitioner's prescription in the last three months. Analgesics were the most common SM (29.1%), followed by vitamins and minerals (16.2%), and antipyretics (14.1%). The side effects experienced from SM included nausea (24.5%), headache (20.5%), and shortness of breath (8.7%). Regarding the source of medication, the majority (61.9%) obtained medications from a pharmacy and 14.6% used existing stock. Age was significantly associated with higher rates in the 18-29 and 40-49 age groups. Educational status was significantly associated with higher SM among graduates. Regarding reading medical instructions, 39.2% always read, 47.7% sometimes read, and 13.1% never read. Regarding antibiotic SM, 61 participants reported using over-the-counter (OTC) antibiotics. Common reasons for use included sore throat (27.8%) and common cold (19.6%). The most common reason for SM was to save time (25.9%), followed by avoiding crowds and long waits (17.1%). Conclusions A significant prevalence of SM practice concerning antibiotic misuse and sex differences with female dominance was detected. We recommend further public awareness activities from related organizations and more regulations for OTC prescription practices to ensure safe SM practices. In addition, further research is needed to explore SM patterns.

9.
j.tunis.ORL chir. cerv.-fac ; 49: 33-38, 2023. figures, tables
Artigo em Inglês | AIM (África) | ID: biblio-1428573

RESUMO

Objective: Choanal atresia (CA) is a rare congenital malformation caused by the obliteration of the posterior choanae by an atretic plate. The aim of our study is to describe the diagnosis and management modalities of CA and to determine the factors associated with recurrence. Materials and methods: This is a retrospective study based on the medical records of patients with CA managed in our department in the period between 2002 and 2021. We studied the clinical features and management modalities of each patient. For patients who developed a recurrence, we determined the factors associated with recurrence based on a bivariate analysis. Results: We studied the medical records of 26 patients with either a bilateral (n=8) or a unilateral (n=16) form of CA. The median age at surgery was two days for bilateral forms and 5 years and 4 months for unilateral forms. At computed tomography scan, CA was mixed (n=20), bony (n=4) or membranous (n=2). All patients underwent intranasal endoscopic surgical treatment using cold instruments alone in membranous forms and combined to the drilling of the atretic plate in bony and mixed forms. The surgical management included the resection of the posterior part of the vomer bone and the placement of nasal stents in 10 and 16 patients respectively. We recorded 6 cases of recurrence requiring a surgical re-intervention. The presence of associated cranio-facial malformations was the only factor associated with recurrence (p=0,001). Conclusion: Choanal atresia diagnosis was based on nasal endoscopy and CT scan. Surgical treatment using transnasal endoscopic approach was an effective and safe technique. Associated local malformations was a factor associated with re-stenosis


Assuntos
Humanos , Atresia das Cóanas , Cirurgia Endoscópica Transanal , Recidiva , Administração de Caso , Diagnóstico
10.
Artigo em Inglês | MEDLINE | ID: mdl-36078492

RESUMO

Background: The knee joint is one of the most important joints in terms of its functions of providing great stability, movement and weight bearing. Among the contributors to knee joint stability, there is the anterior cruciate ligament (ACL). Kinesiophobia is said to be the fear of movement or the fear of re-injury. Kinesiophobia is the most extreme form of fear of movement, and it is defined as an excessive, irrational, and debilitating fear of physical movement and activity resulting from a feeling of vulnerability to painful injury or re-injury. Aim: To estimate the prevalence and effect of kinesiophobia among patients with ACL reconstruction in the Aseer region, in southern Saudi Arabia. Methodology: A descriptive cross-sectional approach was used involving those patients who underwent ACL reconstruction surgery in Aseer Central Hospital during the period of October 2017 to October 2019. The Tampa Scale for Kinesiophobia (TSK) and ACL-Return to Sport after Injury (ACL-RSI) scale were used to determine kinesiophobia and the readiness to return to sport after ACL injury or reconstructive surgery. Result: The research included 130 ACL reconstruction patients with ages ranging from 18 to 45 years with a mean age of 27.2 + 7.5 years. More than 97% of the participants were males. In 67.7% of the cases, the right leg was affected. A total of 10.8% of the patients recorded a low level of kinesiophobia, while only 6.9% recorded a high level. Conclusions: In conclusion, the study revealed that among patients who underwent ACL reconstruction, kinesiophobia was at a moderate level. Kinesiophobia was recorded more among middle-aged patients who waited a long time from the onset of injury until the ACL reconstruction surgery time.


Assuntos
Lesões do Ligamento Cruzado Anterior , Reconstrução do Ligamento Cruzado Anterior , Relesões , Adolescente , Adulto , Lesões do Ligamento Cruzado Anterior/epidemiologia , Lesões do Ligamento Cruzado Anterior/cirurgia , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Volta ao Esporte , Adulto Jovem
11.
Plants (Basel) ; 11(10)2022 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-35631753

RESUMO

Callus and microshoot cultures were established for Chiliadenus montanus (Vhal.) Brullo. (Asteraceae), a medicinal plant known for producing volatile organic compounds (VOCs). Callus induction was achieved successfully by culturing leaf explants on full-strength Murashige and Skoog medium (MS) supplemented with 2.2 µM 2, 4-dichlorophenoxy acetic acid (2,4-D) and 6.9 µM kinetin (Kin). Successful direct shoot regeneration was achieved using nodal explants cultured onto half-strength MS media supplemented with 1.4 µM Gibberellic Acid (GA3) and 4.4 µM 6-Benzylaminopurine (BAP). Indirect microshoots were successfully regenerated using callus cultured on MS media supplemented with 8.8 µM BAP, 2.2 µM Zeatin, and 1.4 µM GA3 followed by culturing on MS media supplemented with 8.8 µM BAP and 0.5 µM naphthalene acetic acid (NAA). Using wild plant aerial parts, callus and microshoots samples, VOCs were extracted successfully using Headspace Solid-Phase Micro-Extraction (HS-SPME) and analyzed by gas chromatography-mass spectrometry (GC-MS). In wild plant extracts, sesquiterpene hydrocarbons were found to be predominant with the following principal components: Alloaromadendrene (11.92%), trans-Cadina-1(6),4-diene (7.54%), and α-caryophyllene (6.77%). The analysis of in vitro microshoots revealed high levels of oxygenated monoterpenes with cis-Myrtanol (16.62%), and ß-Cyclocitral (14.3%) as the main components. Callus extract was dominated by monoterpene hydrocarbons and the main compounds identified were (Z)-ß-Ocimene (22.27%), p-Cymene (15.13%), and α-pinene (13.78%). In conclusion, an efficient in vitro production system of VOCs in C. montanus was established that can be used in the future for boosting their production without endangering wild plants.

12.
Dermatol Reports ; 13(2): 8799, 2021 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-34659671

RESUMO

The aim of this cross-sectional study, that included 146 polycystic ovary syndrome (PCOS) patients, was to evaluate the prevalence, severity and pattern of cutaneous manifestation in Jordanian women with PCOS, as well as their correlation with hormonal abnormalities. A thorough complete cutaneous examination, hormonal assays (Luteinizing hormone [LH], follicle stimulating hormone [FSH], prolactin, total testosterone, free testosterone, dehydroepiandrosterone sulfate) and pelvic ultrasonography were done. The most common cutaneous features of PCOS were acne vulgaris (75.3%) followed by hirsutism (59.6%) then seborrhea (43.2%) and androgenetic alopecia (42.5%). Patients who had acne vulgaris presented at a younger age than patients who did not. Patients who had androgenetic alopecia and stria were older than patients with no such features. Moreover, all cutaneous manifestations of PCOS, except for acne, were associated with higher body mass index (BMI). Elevated LH:FSH ratio of more than 2:1 was the most common hormonal abnormality, followed by increased LH and total testosterone. Acne, hirsutism, androgenetic alopecia, seborrhea, acanthosis nigricans and skin tags are common cutaneous manifestations among Jordanian patients with PCOS. The existence of one or more of these features, especially in overweight and obese patients, should alert the physician towards the possibility of having PCOS.

13.
Plants (Basel) ; 10(9)2021 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-34579338

RESUMO

The MADS-box gene family encodes a number of transcription factors that play key roles in various plant growth and development processes from response to environmental cues to cell differentiation and organ identity, especially the floral organogenesis, as in the prominent ABCDE model of flower development. Recently, the genome of American beautyberry (Callicarpa americana) has been sequenced. It is a shrub native to the southern region of United States with edible purple-colored berries; it is a member of the Lamiaceae family, a family of medical and agricultural importance. Seventy-eight MADS-box genes were identified from 17 chromosomes of the C. americana assembled genome. Peptide sequences blast and analysis of phylogenetic relationships with MADS-box genes of Sesame indicum, Solanum lycopersicum, Arabidopsis thaliana, and Amborella trichopoda were performed. Genes were separated into 32 type I and 46 type II MADS-box genes. C. americana MADS-box genes were clustered into four groups: MIKCC, MIKC*, Mα-type, and Mγ-type, while the Mß-type group was absent. Analysis of the gene structure revealed that from 1 to 15 exons exist in C. americana MADS-box genes. The number of exons in type II MADS-box genes (5-15) greatly exceeded the number in type I genes (1-9). The motif distribution analysis of the two types of MADS-box genes showed that type II MADS-box genes contained more motifs than type I genes. These results suggested that C. americana MADS-box genes type II had more complex structures and might have more diverse functions. The role of MIKC-type MADS-box genes in flower and fruit development was highlighted when the expression profile was analyzed in different organs transcriptomes. This study is the first genome-wide analysis of the C. americana MADS-box gene family, and the results will further support any functional and evolutionary studies of C. americana MADS-box genes and serve as a reference for related studies of other plants in the medically important Lamiaceae family.

15.
Int J Dermatol ; 60(7): 840-843, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33682922

RESUMO

BACKGROUND: Myiasis is a cutaneous infestation by the larvae of dipterous flies. It can be furuncular/nodular, papular, or pustular. Diagnosis of cutaneous myiasis depends mainly on clinical examination especially for the nodular form. The latter two forms can present diagnostic difficulties. Dermoscopy has been reported to be helpful. This report illustrates some of the dermoscopic features of this condition. METHODS: The history, clinical findings, and dermoscopic findings of 15 affected individuals were documented. RESULTS: Dermoscopy in all patients showed the posterior end of larvae (creamy-white bodies and respiratory spiracles resembling birds' legs with digitated feet). Larval motility and bubbles were noticed in 15 and 10 of patients, respectively. Skin surrounding the larvae showed hypopigmentation in 11 patients and an increase in dilated capillaries in 13. CONCLUSIONS: Dermoscopy can facilitate the diagnosis of myiasis particularly of the papular and pustular forms.


Assuntos
Dípteros , Miíase , Dermatopatias Parasitárias , Animais , Humanos , Larva , Perna (Membro) , Miíase/diagnóstico , Dermatopatias Parasitárias/diagnóstico por imagem
16.
J Exp Bot ; 72(4): 1225-1244, 2021 02 24.
Artigo em Inglês | MEDLINE | ID: mdl-33159787

RESUMO

The sizes of plant organs such as fruit and seed are crucial yield components. Tomato KLUH underlies the locus fw3.2, an important regulator of fruit and seed weight. However, the mechanism by which the expression levels of KLUH affect organ size is poorly understood. We found that higher expression of SlKLUH increased cell proliferation in the pericarp within 5 d post-anthesis in tomato near-isogenic lines. Differential gene expression analyses showed that lower expression of SlKLUH was associated with increased expression of genes involved in lipid metabolism. Lipidomic analysis revealed that repression of SlKLUH mainly increased the contents of certain non-phosphorus glycerolipids and phospholipids and decreased the contents of four unknown lipids. Co-expression network analyses revealed that lipid metabolism was possibly associated with but not directly controlled by SlKLUH, and that this gene instead controls photosynthesis-related processes. In addition, many transcription factors putatively involved in the KLUH pathway were identified. Collectively, we show that SlKLUH regulates fruit and seed weight which is associated with altered lipid metabolism. The results expand our understanding of fruit and seed weight regulation and offer a valuable resource for functional studies of candidate genes putatively involved in regulation of organ size in tomato and other crops.


Assuntos
Frutas , Metabolismo dos Lipídeos , Fotossíntese , Sementes , Solanum lycopersicum , Frutas/genética , Frutas/crescimento & desenvolvimento , Regulação da Expressão Gênica de Plantas , Metabolismo dos Lipídeos/genética , Solanum lycopersicum/genética , Solanum lycopersicum/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Sementes/genética , Sementes/crescimento & desenvolvimento
17.
Front Plant Sci ; 11: 642, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32670303

RESUMO

Barley spot blotch (SB) caused by Cochliobolus sativus is one of the major constrains to barley production in warmer regions worldwide. The study was undertaken to identify and estimate effects of loci underlying quantitative resistance to SB at the seedling and adult plant stages. A panel of 261 high input (HI-AM) barley genotypes consisting of released cultivars, advanced breeding lines, and landraces, was screened for resistance to SB. The seedling resistance screening was conducted using two virulent isolates from Morocco (ICSB3 and SB54) while the adult plant stage resistance was evaluated at two hot spot locations, Faizabad and Varanasi, in India under artificial inoculation using a mixture of prevalent virulent isolates. The HI-AM panel was genotyped using DArT-Seq high-throughput genotyping platform. Genome wide association mapping (GWAM) was conducted using 13,182 PAV and 6,311 SNP markers, for seedling and adult plant resistance. Both GLM and MLM model were employed in TASSEL (v 5.0) using principal component analysis and Kinship Matrix as covariates. Final disease rating and Area Under Disease Progress Curve (AUDPC) were used for the evaluation of adult stage plant resistance. The GWAM analysis indicated 23 QTL at the seedling stage (14 for isolate ICSB3 and 9 for isolate SB54), while 15 QTL were detected at the adult plant stage resistance (6 at Faizabad and 9 at Varanasi) and 5 for AUDPC based resistance at Varanasi. Common QTL at seedling and adult plant stages were found across all barley chromosomes. Seedling stage QTL explained together 73.24% of the variance for seedling resistance to isolate ICSB3 and 49.26% for isolate SB54, whereas, QTL for adult plant stage resistance explained together 38.32%, 44.09% and 26.42% of the variance at Faizabad and Varanasi and AUDPC at Varanasi, respectively. Several QTL identified in this study were also reported in previous studies using bi-parental and association mapping populations, corroborating our results. The promising QTL detected at both stages, once validated, can be used for marker assisted selection (MAS) in SB resistance barley breeding program.

18.
J Family Community Med ; 25(3): 148-154, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30220843

RESUMO

BACKGROUND: Despite the abundance of sunshine throughout the year, Vitamin D deficiency is highly prevalent among different Saudi populations. The objective of the current study was to evaluate the awareness and intake of Vitamin D and their association among adults of both genders. MATERIALS AND METHODS: A cross-sectional study was done between June and August 2016 among adult patients and their family members (>18 years) presenting at 6 Primary Care Centers in the Qassim region, Saudi Arabia. RESULTS: A total of 500 study participants were included in the study; 54.6% of the participants were males and mostly aged most between 26-50 years. The majority of the participants had heard of Vitamin D (91.4%), believed in its importance for health (92.8%), were aware of the symptoms of Vitamin D deficiency (72.6%), and were able to identify exposure to sunlight (81.4%) and diet (70.4%) as sources. The sources of Vitamin D used by the participants were exposure to the sun (57.2%), Vitamin D-rich foods (51.2%) and supplements (18.8%). There was a significant association between overall awareness of Vitamin D and intake of at least 2 sources of Vitamin D in males (P < 0.001) but not females (P = 0.920). Although females had better awareness than males, exposure to the sun was much lower in females than males. CONCLUSION: As supplementation was very low in both genders, and since cultural factors that limit females' exposure to the sun are not easily modifiable, the current findings further underline the critical importance of Vitamin D supplementation, particularly in females in Saudi Arabia.

19.
Mediators Inflamm ; 2018: 8206983, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30116153

RESUMO

Pemphigus foliaceus (PF) is a rare autoimmune skin disease caused by anti-Dsg1 pathogenic autoantibodies. It is considered as a Th2-mediated disease. Likewise, Th17 cells were recently described in the pathogenesis of the disease but their role is still unclear. We aimed to unravel the eventual implication of the IL23/Th17 pathway in the development of PF. A case-control study was conducted on 115 PF patients and 201 healthy controls using PCR-RFLP and AS-PCR methods. SNPs in IL23R, RORγt, IL17A, IL17F, IL17AR, TNFa, and STAT3 genes were genotyped. mRNA expression of IL23R and RORγt was evaluated using Q-PCR. The frequency of circulating Th17 cells was analyzed by flow cytometry. Genetic associations between IL23R>rs11209026, IL17A>rs3748067, IL17F>rs763780, and TNFa>rs1800629 and the susceptibility to PF were reported. Moreover, we revealed a significant increased frequency of circulating CD4+IL17+ cells as well as higher mRNA levels of RORγt and IL23R in PBMCs of patients. However, no significant increase of RORγt and IL23R mRNA expression was observed in lesional skin biopsies. In spite of the little size of specimens, our results provide converging arguments for the contribution of the IL23/Th17 pathway in the pathogenesis of PF.


Assuntos
Interleucina-23/metabolismo , Pênfigo/imunologia , Células Th17/imunologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia , Estudos de Casos e Controles , Feminino , Citometria de Fluxo , Frequência do Gene , Genótipo , Humanos , Interleucina-17/genética , Interleucina-17/metabolismo , Interleucina-23/genética , Masculino , Pessoa de Meia-Idade , Razão de Chances , Polimorfismo de Nucleotídeo Único , Estudos Retrospectivos , Tunísia , Adulto Jovem
20.
Front Plant Sci ; 9: 520, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29740461

RESUMO

Barley stripe rust is caused by Puccinia striiformis f.sp. hordei, (Psh), occurs worldwide, and is a major disease in South Asia. The aim of this work was to identify and estimate effects of loci underlying quantitative resistance to rust at seedling and adult plant stages. HI-AM panel of 261 barley genotypes consisting of released cultivars from North and South America, Europe, Australia, advanced breeding lines, and local landraces from ICARDA barley program were screened at seedling and adult plant stages for resistance to Psh. Seedling resistance was evaluated with the five prevalent Psh races in India. Screening for the adult plant stage resistance was also performed in two different locations by inoculating with a mixture of the five races used for seedling screeing. The panel was genotyped using DaRT-Seq high-throughput genotyping platform. The genome-wide association mapping (GWAM) showed a total of 45 QTL located across the seven barley chromosomes for seedling resistance to the five races and 18 QTL for adult plant stage resistance. Common QTL for different races at seedling stage were found on all chromosomes except on chromosome 1H. Four common QTL associated with seedling and adult plant stage resistance were found on chromosomes 2, 5, and 6H. Moreover, one of the QTL located on the long arm of chromosome 5H showed stable effects across environments for adult plant stage resistance. Several QTL identified in this study were also reported before in bi-parental and association mapping populations studies validating current GWAM. However 15 new QTL were found at adult plant stage on all chromosomes except the 4H, explaining up to 36.79% of the variance. The promising QTL detected at both stages, once validated, can be used for MAS in Psh resistance breeding program globally.

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