101 research outputs found

    Stress Resilience and Sugar Transport in Sorghum bicolor L. in Response to Salinity

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    Electronic Resources licenses and their role in supporting the free access to information at universities libraries: a pilot study on universities libraries in Greater Cairo.

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    This study aims to identify the role of university libraries in negotiating with publishers about licenses for the use of information resources, whether subscriptions or open access, and shed light on the recent developments in the field of legal licenses for open digital content and the extent of validity of Creative Commons licenses in achieving a balance between the protection of authors' rights and users in the digital age, and submitting some proposals that help the existence of new legislations compatible with the requirements of dealing with the digital library and the Internet and protection of intellectual property rights, and to highlight the importance of raising awareness of the existence of this legislations and how to apply them and benefit from them. The study depended on the field survey method to achieve its goals using a set of tools to collect data. The tools include a questionnaire, observation, and personal interview

    Predictors of Delay in Seeking Health Care among Myocardial Infarction Patients, Minia District, Egypt

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    Objectives. To determine the barriers that hinder early seeking of medical care among Minia's myocardial infarction patients. Methods. The study was based on individual interviews with 207 men and women with a first confirmed myocardial infarction (MI), admitted to the coronary care units of hospitals in Minia city in the period from April 1 to August 30, 2014. Data was collected via structured questionnaire and patient medical charts. The delay was evaluated by assisting patients to triangulate time of symptom onset and time of professional health care by placing both times in context of daily activities that participants could easily remember. Results. The median (25th, 75th percentiles) delay time was 4 (2, 10) h. Only 32.8% of patients arrived within 2 hours of symptoms onset. Variables that significantly predicted prehospital delay time were patient's misinterpretation of nature of pain with OR 8.98 (95% CI) (3.97-20.32), illiteracy 7.98 (2.77-22.95), age (>65) 5.07 (1.57-16.29), and pain resistance behavior 4.61 (2.04-10.41). Conclusions. Interventions to decrease prehospital delay must focus on improving public awareness of acute myocardial infarction symptoms and increasing their knowledge on early treatment benefits

    Phytochemical studies on Diplotaxis harra growing in Sinai

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    Five main flavonoid glycosides were isolated from the ethanolic extract of Diplotaxis harra (Cruciferae), and were identified as quercetin, isorhamnetin 3-rhamnoside, isorhamnetin 3-o-rutinoside, isorhamnetin 3-glucosyl-4`-rhamnoside and isorhamnetin 3-o-β-glucoside. These compounds were identified according to their Rf values, partial and complete acid hydrolysis, UV, 1H-NMR, 13C-NMR and 2D NMR (HSQC, HMBC) spectroscopy. The alcoholic extract of plant was evaluated against some bacterial strains which showed moderate antibacterial activity, while petroleum ether extract doesn't show any activity

    The Role of Serum Periostin Level in Different Pediatric Allergic Diseases: A Case-Control Study

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    Background: Allergic diseases represent one of the most common types of diseases globally and affect a large sector of population especially children. The main purpose of this study is to evaluate the relation between serum periostin and different allergic diseases and to compare them with children of non-allergic diseases as a control group. Methods: 80 children were included in the study; 40 had allergic diseases and 40 children had no allergic diseases as controls. All participants completed the history and clinical examination, complete blood count, total serum immunoglobulin IgE (UI/ml), and serum periostin level. Results: Among the patients with allergic diseases, bronchial asthma was the most common diagnosed disease 29/40 (72.50%). Patients with allergic diseases had significantly higher mean (±SD) serum periostin when compared to infants with no allergic diseases (271.9±263.27 ng/ml and 115.33±191.42 ng/ml, P-value 0.0001). However, highly elevated serum periostin >150 ng/ml were found exclusively in patients with allergic diseases 22/40 (55.00%) and only in 4/40 (10.0%) of the controls (p-value<0.0001). Furthermore, there were a statistically significant difference between the patients with different degrees of allergic diseases severity and serum periostin level as it was 1080±251.73 ng/ml in severe allergic diseases compared to 244.5±263.57 ng/ml in mild allergic diseases (P- value 0.01). Conclusion: The most common type of allergic diseases in our study was bronchial asthma. Higher serum periostin levels were observed in allergic patients in comparison to the controls; and they were found to have a significant relationship with disease severity

    GPC3 gene expression and allelic discrimination of FZD7 gene in Egyptian patients with hepatocellular carcinoma

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    Background: Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related deaths worldwide, and especially in Egypt. Early diagnosis of HCC greatly improves the survival and prognosis of patients. Low sensitivity and specificity of alpha-fetoprotein (AFP) has led to the demand for novel biomarkers of HCC. The aim of the present study was to evaluate the validity of frizzled-7 (FZD7) and glypican-3 (GPC3) gene expression as potential biomarkers for HCC early diagnosis, and to investigate the association between FZD7 rs2280509 polymorphism and HCC risk. Materials and methods: Quantification of FZD7 and GPC3 gene expression by real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay, and genotyping FZD 7 (rs2280509 SNP) gene polymorphism using RT-PCR. Results: The current results revealed that FZD7 gene expression had a greater area under the curve (AUC) for identifying HCC than GPC3 gene expression and AFP levels. The combination of the three markers as a panel showed a better diagnostic performance with a greater AUC than any of the single markers alone (p &lt; 0.05). The FZD7 rs2280509 polymorphism (CT) was found to be significantly associated with an increased risk of HCC. The CT genotype and T allele were significantly more prevalent in the HCC group compared to either the cirrhosis (p = 0.03) or control groups (p = 0.0009 and 0.002; respectively). Conclusion: FZD7 and GPC3 gene expressions have a complementary role in early HCC detection, with a greater diagnostic sensitivity and accuracy than AFP. In addition, FZD7 rs2280509 polymorphism is significantly associated with an increased risk of HCC in the Egyptian population

    BSA Interaction, Molecular Docking, and Antibacterial Activity of Zinc(II) Complexes Containing the Sterically Demanding Biomimetic N3S2 Ligand: The Effect of Structure Flexibility

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    Two zinc(II) complexes, DBZ and DBZH4, that have (ZnN3S2) cores and differ in the bridging mode of the ligating backbone, effectively bind to BSA. The binding affinity varies as DBZ > DBZH4 and depends on the ligand structure. At low concentrations, both complexes exhibit dynamic quenching, whereas at higher concentrations they exhibit mixed (static and dynamic) quenching. The energy transfer mechanism from the BSA singlet excited state to DBZ and DBZH4, is highly likely according to steady-state fluorescence and time-correlated singlet photon counting. Molecular docking was used to support the mode of interaction of the complexes with BSA and showed that DBZ had more energy for binding. Furthermore, antibacterial testing revealed that both complexes were active but to a lesser extent than chloramphenicol. In comparison to DBZH4, DBZ has higher antibacterial activity, which is consistent with the binding constants, molecular docking, and particle size of adducts. These findings may have an impact on biomedicine

    PERCEIVED BARRIERS TO BREAST CANCER SCREENING AMONG SAUDI WOMEN AT PRIMARY CARE SETTING

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    Introduction: Screening for breast cancer (BC) is of low rate in Saudi Arabia; although it is provided in the country free of charge to the population. This cross-sectional study aimed at investigating the perceived barriers towards BC screening in Al Hassa, Saudi Arabia. Participants and Methods:  A total of 816 adult Saudi women aged ≥ 30 years attending for routine primary health services or accompanying patients at the selected primary health care centers (PHCs) were randomly selected from 12 PHCs (8 urban and four rural) using multi-stage sampling method. Participants were invited to personal interview using semi-structured data collection instrument including inquiries about socio-demographics, reproductive history, previous histories of diagnosed breast lesions and breast cancer. The perceived individual barriers towards screening, their attitudes, the reasons for not attending previously held screening campaigns in Al Hassa, were also included. Results: Low utilization of BC screening being significantly positively associated with woman’s age, higher educational status, higher family income, using hormonal contraception and positive history of previous breast as shown by the results of the logistic regression model. Exploratory factor analysis showed that personal fears (especially fear of doctors/examiners, fear of hospitals and health facilities and fear of consequences/results) were the major factors that hinder women from utilizing the free of charge BC screening with high loading eigenvalue of 3.335, explaining 30.4% of the barriers. Conclusion: Educational interventions aim at improving breast cancer knowledge and addressing barriers   should be incorporated as core component of the screening program in Saudi Arabia.

    The use of urodynamic to assess the mechanism of incontinence in patients with Yang-Monti based catheterizable cutaneous stomas

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    Objective: To analyze the static and dynamic urodynamic parameters of reservoirs and continent conduits in continent cutaneous urinary diversion with catheterizable stoma. Materials and methods: 76 patients had augmented ileocystoplasty or continent urinary diversion with catheterizable urinary stoma based on Mitrofanoff principle and Yang-Monti procedure using subserous tunnel as continence mechanism. They were followed up for at least 6 months post-operatively for continence through stoma and divided into two groups (continents vs non-continent) according to stomal continence. Both groups had urodynamic assessment performed via the stoma to assess reservoir capacity, pressure and contractions, efferent limb functional length, reservoir overactivity, static and dynamic maximal closure pressures and leak point pressure. Results: Continence rate was 87%. Continent group included 66 patients and incontinent group included 10 patients. In both groups at rest, the reservoir pressure after filling did not exceed 25 cm H2O. During peristaltic contraction, the pressure did not exceed 30 cm H2O and the duct remained continent. After Valsalva maneuver, the reservoir pressure increased up to 34 (+ 7.4) cm H2O and leakage occur in 10 patients (13%). Reservoir (wall) overactivity was recorded in 54 patients, with insignificant rise in intraluminal pressure during the contractions. In both groups, the efferent tract closing pressure was always higher than the reservoir pressure. The mean of maximal closing pressure at Valsalva was 82.5 (+ 4.18) cm H2O in the continent group and 61.66 (+ 8.16) cm H2O in the incontinent group. The mean functional length of the conduit was 4.95 + 1.62 in the continent group and 2.80 + 1.50 cm in the incontinent group. Conclusions: Urodynamic evaluation of continent catheterizable cutaneous stoma after Yang-Monti procedure has a practical significance. Functional length of the conduit seems to be the most influential factor for continence reflecting static & dynamic maximal closure pressure. Higher conduit closing pressure is associated with better continence. Contractions of the pouch and peristaltic contraction of the conduit has no effect on continence mechanism

    Menstrual changes after COVID-19 vaccination and/or SARS-CoV-2 infection and their demographic, mood, and lifestyle determinants in Arab women of childbearing age, 2021

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    BackgroundBy September 2, 2021, over 30,000 COVID-19-vaccinated females had reported menstrual changes to the MHRA's Yellow Card surveillance system. As a result, the National Institutes of Health (NIH) is urging researchers to investigate the COVID-19 vaccine's effects on menstruation. Therefore, this study was conducted to explore the menstrual changes after COVID-19 vaccination and/or SARS-CoV-2 infection and their interrelations with demographic, mood, and lifestyle factors in Arab women of childbearing age (CBA).MethodologyA cross-sectional study was conducted during October 2021 using an Arabic validated and self-administrated questionnaire. In total, 1,254 Women of CBA in the Arabic Population (15–50 y) with regular menstrual cycles were randomly selected from five countries (Saudi Arabia, Egypt, Syria, Libya, and Sudan).ResultsThe mean (SD) age of the 1,254 studied females was 29.6 (8.5) years old. In total, 634 (50%) were married, 1,104 (88.0%) had a University education or above, 1,064 (84.4%) lived in urban areas, and 573 (45.7%) had normal body weight. Moreover, 524 (41.8%) were COVID-19 cases and 98 women (18.7%) reported menstrual changes (MCs). The 1,044 (83.5%) vaccinated females reported 418 (38.5%) MCs after being vaccinated, and these MCs resolved in 194 women (55.1%) after more than 9 months. Statistically significant relationships were observed between the reported MCs and the following variables: age, marital status, level of education, nationality, residence, and BMI. MCs were reported at 293(80.6) after the 2nd dose, and were mainly reported after 482 (46.1) Pfizer, 254 (24.3) Astrazenica, and 92 (8.8) Senopharm.ConclusionMCs among women of CBA after COVID-19 infection and vaccination are prevalent and complex problems, and had many determinates
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