Psychometric properties of an Arabic translation of the short entrapment scale in a non-clinical sample of young adults

Abstract Background Entrapment is the feeling of wanting to leave an unbearable situation but believing that there are no options to do so. An Arabic entrapment Scale will assist healthcare professionals in the region in the prevention of suicide as the tool is tailored to the specific sociocultural context, which would enhance entrapment detection. Objective In the current study, we aim to evaluate the psychometric properties of a translated Arabic version of the Entrapment Scale Short Form (E-SF). Methods Three hundred eighty-nine Lebanese citizens were enrolled in this cross-sectional study. Results The mean age of participants was 23.03 years (SD = 2.93), 69.4% being women. To examine the factor structure of the entrapment scale, we used an exploratory-to-confirmatory factor analysis (EFA-to-CFA) strategy. EFA and CFA results indicated that the fit of the unidimensional model of the Arabic Entrapment Scale (A-ES) was generally acceptable. Composite reliability of scores was adequate in the total sample (ω = .87). All indices suggested that configural, metric, and scalar invariance was supported across genders. Entrapment was positively and significantly correlated with suicidal ideation, alcohol use disorder, psychological distress, and orthorexia nervosa, suggesting convergent and divergent validity. Conclusion The A-ES was found to be a valid and reliable tool to assess the degree of entrapment in Lebanese young adults. The A-ES will assist healthcare professionals in the region in the prevention of suicide as the tool is tailored to the specific sociocultural context, which would enhance entrapment detection.

THE NATURAL RELATIONSHIPS AMONG ARABIC WRITING SKILLS (AWS) ENRICH ARABIC ACQUISITION PRACTICES FOR NON-ARAB SPEAKERS

This case study was conducted on the needs of Arabic writing skills AWS for Ugandan Adults Learners UAL using the descriptive analytical method where the sample sized (n=40) was used. The researchers sought to answer, among others, a major research question about how important the AWS from UAL viewpoint are. It attempted to identify the signi?cancy of AWS from UAL viewpoint so that the researcher could engage more relevant design of Arabic writing sub- skills' content alternatives for elementary Arabic learning course EALC. The valid and reliable questionnaire namely, “The Elementary Arabic Learning Analysis Scales EALAS for UAL” with 5 Likert scales was used. On one hand, the descriptive ?ndings assert that UAL ratings for AWS interests are signi?cantly high. On another hand, the correlational ?ndings yielded by this survey indicate that the natural relationships among AWS are signi?cant. They also indicate that there is a positive natural relationship among AWS irrespective of any instructional condition. This is clear manifesto that justi?ed the feasibility of structuring EALC for UAL in which the samples of lessons are presented using AWS.

Acacia senegal inhibits diabetic nephropathy ultrastructure alteration and renal biomarkers changes in rats / Acacia senegal inhibe la alteración de la ultraestructura de la nefropatía diabética y los cambios en los biomarcadores renales en rata

SUMMARY: Diabetic nephropathy (DN) is the most common complication of diabetes. Several studies have been done in a trial to protect against this problem at the ultrastructure level. This study investigates the protective effect of oral administration of Acacia senegal (AS) against the development of DN. Sixty male albino rats were randomly divided into six groups: control, Acacia senegal control, Diabetic untreated, diabetic insulin-treated, Diabetic AS treated, and Diabetic insulin and AS combined treated groups. Plasma glucose, HbA1c, serum Albumin, creatinine, urine creatinine was measured using specific kits. Determinations of creatinine clearance and blood pressure were done. The renal tissues of both kidneys were prepared to investigate under both light (LM) and electron microscope (EM). Ultrastructure examination of renal rats tissue of diabetic untreated rats showed the destruction of the glomerular basement membrane and endothelial cells together with hemorrhage in glomerular capsules (Bowman's capsules). On the other side, both LM and EM revealed improving the endothelial cells and the other glomerular capsules structures, especially with the combined treated group, which confirmed the improvement of the biochemical investigation in the study. In conclusion, from the present study, using the oral AS together with SC insulin could be protected against the development of DN.

RESUMEN: La nefropatía diabética (ND) es la complicación más común de la diabetes. Se han realizado varios estudios de ensayo para abordar esta dificultad a nivel de ultraestructura. Este estudio investiga el efecto protector de la administración oral de Acacia senegal (AS) contra el desarrollo de la ND. Se dividieron sesenta ratas albinas machos aleatoriamente en seis grupos: control, control de Acacia senegal, diabéticos no tratados, diabéticos tratados con insulina, diabéticos tratados con AS y grupos tratados con compuesto de insulina diabética + AS. Se midieron utilizando kits específicos, glucosa plasmática, HbA1c, albúmina sérica, creatinina en sangre y en orina. Se registraron la creatinina y la presión arterial. Los tejidos renales de ambos riñones se prepararon para investigar tanto con microscopio óptico (MO) como electrónico (ME). El examen de la ultraestructura del tejido renal de ratas diabéticas no tratadas mostró la destrucción de la membrana basal glomerular y las células endoteliales junto con hemorragia en las cápsulas glomerulares (cápsulas de Bowman). Por otro lado, tanto MO como ME revelaron una mejora de las células endoteliales y las estructuras capsulares glomerulares, en el grupo tratado con el compuesto, lo que confirmó la mejora de la investigación bioquímica. En conclusión, el uso de AS oral en combinación con insulina podría proteger contra el desarrollo de ND.

Code-Switching Between Arabic and English in Selected Discourses

Code-switching is a linguistic phenomenon that has been studied on both written and spoken discourses in the recent years. This study is an attempt to analyze code-switching in selected discourses. The data were collected from Arabic Interviews on YouTube. The first interview 'Studying in the best university ever' is a broadcast by Abdullah Al-Alawy. The second interview 'Karak session' is with the broadcaster Mohammed Al-Hinai. The methodology of this study was a mixed (quantitative as well as qualitative) method. The research tries to answer three questions: 1.How many code- switching Instincts from Arabic language to English language occurred in the selected discourses? 2. Is there any translation for the code-switching? If yes, then where the translation takes its place whether before or after the code- switching? 3. How many intra-word switching occur by using Arabic grammatical morphemes within these English code-switching? The research's primary goal is to improve our understanding of the instinctive uses of code-switching from Arabic to English. In this study I found that there are 101 occurrences of code-switching within about forty minutes of Arabic discourses. The most frequent type of code-switching in these two discourses was intra-sentential code-witching. While the least used one was inter-sentential code-switching. Most of the code-switching Instincts occurred without any translation to Arabic

Psychometric properties of a Saudi Arabian version of the Positive Mental Health (PMH) scale

The Positive Mental Health (PMH) scale has been shown to be a reliable and valid tool for assessing positive mental health and well-being in different languages and cultures. However, the PMH scale has not yet been translated into Arabic and validated for the Saudi Arabian population. Therefore, the current study aimed to translate the English version of the PMH scale into Arabic for the Saudi Arabian context and validate the translated scale. A total of 1148 adult participants from Saudi public universities took part in the study. Based on exploratory and confirmatory factor analyses in different subsamples, the results of the current study revealed that the unifactorial model satisfactorily fits the data. Additionally, the Arabic version of the PMH scale demonstrated sufficient levels of reliability and had a high negative correlation with the Beck Depression Inventory-II, indicating convergent validity. Taken together, the findings of the current study suggest that the Arabic version of the PMH scale has appropriate levels of validity and reliability for the Saudi Arabian population.

Validity and Reliability of the Arabic Translation of Diabetes Knowledge Test (DKT1)

@#Introduction: Diabetes Knowledge Test (DKT1) is a tool to assess patients’ diabetes knowledge and lifestyle. It comprises two subscales: the DKT1-general and DKT1-insulin-use. This study aimed to translate the DKT1 into Arabic and tested its validity and reliability in the Saudi population. Methods: This single-centre, cross-sectional study examined diabetes-related knowledge and lifestyle of Saudi patients with diabetes who used anti-diabetic medication and/or insulin. The participants’ mean scores for the two subscales of DKT1 were compared according to their type and duration of diabetes, medication use, and levels of education. Internal consistency tests and factor analysis were applied to examine the reliability and validity of the subscales, respectively. Results: In total, 400 individuals with diabetes (mean age 43.8±16.1 years) were enrolled. Of these, 44.2% had type 1 diabetes, and 51% were men. The Arabic version of DKT1 received internal consistency scores with coefficient alpha (95% confidence interval) values of 0.541 (0.472–0.604) and 0.741 (0.699–0.785) for the DKT1-general and DKT1-insulin-use subscales, respectively. The validity test showed that the participants with type 1 diabetes attained marginally higher score in the DKT1-general subscale and significantly higher score in the DKT1-insulin-use subscale than those with type 2 diabetes. Additionally, the scores increased with higher levels of education and longer durations of the disorder. Conclusion: The Arabic translation of DKT1 is an acceptable tool which can be used to measure the effectiveness of diabetes education programmes and would help to identify patient’s education needs.

Study Of The Anti-Hyperlipidemic Effect Of The Combined Administration Of Three Natural Extracts In A Poloxamer-407 Hyperlipidemic Model And Their Lc-Esi-Ms/Ms2 And Hplc Profiling

Objective: Dyslipidaemia is considered a high-risk factor for inducing atherosclerosis and cardiovascular diseases (CVDs). This study aims to investigate the anti-hyperlipidemic effect of the co-administration of the ethanol extracts of both ginger (root and rhizome) and leek (leaves and bulbs) in addition to the aqueous extract of gum arabic.  Methods: Rats were divided into eight groups: Hyperlipidaemia was induced in rats by a single intraperitoneal injection of Poloxamer 407 (P-407) [1 g/kg], negative control [saline injected], hyperlipidemic control [P-407 injected], positive control [Atorvastatin 70 mg/kg], groups four, five and six received ginger extract (400 mg/kg), leek extract (500 mg/kg) and gum arabic aqueous extract (7.5 g/kg) respectively and groups seven and eight received a co-administration of ginger, leek and gum arabic extracts at doses A and B respectively. Lipid profile was monitored. The profiling of all the tested extracts was performed by LC-ESI/MS and HPLC. Results: A significant anti-hyperlipidemic activity (P<0.05) was seen for group eight among all the tested groups producing ≈54%, 72%, 50% and 72% decrease in the measured parameters total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL) and very-low-density lipoprotein (VLDL) respectively. An overall of 56 and 45 compounds were tentatively identified in the ethanol extracts of ginger and leek, respectively. Galactose and arabinose sugars were found to be the major saccharides in gum arabic and glucuronic acid was the major polyuronide part. Conclusion: the co-administration of a group of natural extracts in the given concentration proved to be more effective than the use of synthetic drugs or the use of a single component.

Preventive role of gum Arabic administration on STZ induced diabetic kidney disease in rats; renal antioxidant and histopathological evidence / Función preventiva de la administración de goma arábiga en la enfermedad renal diabética inducida por STZ en ratas; antioxidante renal y evidencia histopatológica

This study was set to investigate the effect of gum Arabic (G.A.) on diabetic kidney disease. We divided sixty male Sprague rats randomly into six groups. Normal control, normal rats treated with G.A., untreated diabetic rats, diabetic rats treated with insulin, diabetic rats treated with G.A., and diabetic rats treated with both insulin and G.A. Diabetes was induced by a single intraperitoneal injection of STZ. Forty eight hr post injections. Insulin was injected subcutaneously (1.6/IU/100g/day). We provided G.A. in drinking water (10 %w/ v).). At the end of the twelve weeks, blood was drawn for measurement of blood glucose, glycosylated hemoglobin (HbA1C), serum lipids, serum creatinine, and blood urea. Renal tissue oxidative stress (O.S.) was assessed by measuring the activities of superoxide dismutase (SOD) and catalase (CAT), and the concentrations of reduced glutathione (GSH) and malondialdehyde (MDA). For histological assessments, sections from segments of kidneys were processed and stained with hematoxylin and eosin (H&E) for assessment under the light microscope. STZinduced diabetes caused an elevation of blood glucose, HbA1c, urea and creatinine, triglycerides LDL and cholesterol, MDA with reduction of HDL, GSH level, and CAT and SOD activities. Histologically, kidneys from diabetic rats showed marked glomerular and tubular changes. Administration of G.A. alone to diabetic rats had a significant hypoglycemic, hypolipidemic, and antioxidant effect, although the levels achieved remained significantly abnormal compared with the untreated group with no effect on urea and creatinine levels. Co-administration of G.A. with insulin reversed the impact of D.M. on all parameters evaluated including the histological changes and led to normal urea and creatinine levels. We concluded that G.A., in combination with insulin, improves chemically-induced diabetes and its renal complications, possibly by modulation of oxidative stress.

En este estudio se evaluó el efecto de la goma arábiga (GA) en la enfermedad renal diabética. Dividimos sesenta ratas macho Sprague Dawley al azar en seis grupos. Control normal, ratas normales tratadas con GA, ratas diabéticas no tratadas, ratas diabéticas tratadas con insulina, ratas diabéticas tratadas con GA y ratas diabéticas tratadas con insulina y GA. La diabetes fue inducida por una sola inyección intraperitoneal de STZ. Cuarenta y ocho horas después se inyectó insulina por vía subcutánea (1,6 / UI / 100 g / día). A los animales se les dió GA en agua potable (10 % p / v)). Al final de las doce semanas, se extrajo sangre para medir la glucosa, la hemoglobina glicosilada (HbA1C), los lípidos en suero, la creatinina en suero y la urea en sangre. El estrés oxidativo del tejido renal (SO) se evaluó midiendo las actividades de la enzima superóxido dismutasa (SOD) y la catalasa (CAT), y las concentraciones de glutatión reducido (GSH) y malondialdehído (MDA). Para las evaluaciones histológicas, se procesaron secciones de segmentos de riñones y se tiñeron con hematoxilina y eosina (H & E) para análisis bajo microscopio óptico. La diabetes inducida por STZ causó una elevación de la glucosa en sangre, HbA1c, urea y creatinina, triglicéridos LDL y colesterol, MDA con reducción de las actividades de HDL, GSH y CAT y SOD. Histológicamente, los riñones de ratas diabéticas mostraron marcados cambios glomerulares y tubulares. La administración de GA solo en las ratas diabéticas tuvo un efecto hipoglucémico, hipolipidémico y antioxidante significativo, aunque los niveles alcanzados permanecieron significativamente anormales en comparación con el grupo no tratado, sin ningún efecto sobre los niveles de urea y creatinina. La dministración conjunta de GA con insulina revirtió el impacto de DM en todos los parámetros evaluados, incluidos los cambios histológicos y condujeron a niveles normales de urea y creatinina. Concluimos que GA en combinación con insulina, mejora la diabetes inducida químicamente y sus complicaciones renales, posiblemente mediante la modulación del estrés oxidativo.

Protective effect of gum arabic/insulin against histological changes in testes of diabetic rats / Efecto protector de la goma arábiga / insulina contra los cambios histológicos en los testículos de ratas diabéticas

Diabetes mellitus is a serious disease with a high incidence of occurrence in our community. Gum Arabic (GA) is a branched-chain polysaccharide which has strong antioxidant properties, and has been used to reduce the experimental toxicity. Yet, the effects of GA on testicular tissue in type I diabetic rats have not been enough investigated. This study was designed to investigate histological changes in testes of male Wistar rats and investigate the protective potential of GA against diabetes- induced testicular toxicity in rats. Fifty adult male Wistar rats were assigned into five groups (n = 10 of each): Group 1 (non-diabetic rats) served as control, Group 2 served as diabetic group injected with Alloxan, Group 3 diabetic group plus insulin, Group 4 diabetic group given 15 % GA in drinking water and Group 5 diabetic group plus insulin and GA for 4 weeks. Compared to control group, histopathological examinations of testicular tissue from the diabetic rats group, showed degeneration, necrosis and atrophy of seminiferous with presence of giant cells. Necrosis and hemorrhage in the renal tissue. On the other hand, treatment with GA ameliorated all the previous histological changes. Overall, oral administration of GA alone or with insulin daily for 4 weeks successfully ameliorated the testicular histological changes. These data demonstrated that GA significantly improved diabetes complication in rat testis. This study suggested that GA might have a protective effect against oxidative stress-induced impaired testicular functions in diabetic rats. The possible mechanisms of this action might be ascribed to their antioxidant and anti-inflammatory properties.

La diabetes mellitus es una enfermedad grave con una alta incidencia en nuestra comunidad. La goma arábiga (GA) es un polisacárido con propiedades antioxidantes importantes, y se ha utilizado para reducir la toxicidad experimental. Sin embargo, los efectos de GA sobre el tejido testicular en ratas diabéticas tipo I no se ha investigado lo suficiente. El estudio fue diseñado para pesquisar los cambios histológicos en los testículos de ratas Wistar macho e investigar el potencial protector de GA contra la toxicidad testicular inducida por la diabetes en ratas. Fueron asignadas cincuenta ratas Wistar macho adultas en cinco grupos (n = 10 de cada una): el grupo 1 (ratas no diabéticas) sirvió como control, el grupo 2 sirvió como grupo diabético inyectado con Alloxan, grupo diabético del grupo 3 más insulina. El grupo 4 diabético recibió 15 % de GA en agua potable, y el grupo diabético 5 más insulina y GA durante 4 semanas. Al comparar con el grupo control, los exámenes histopatológicos del tejido testicular del grupo de ratas diabéticas mostraron degeneración, necrosis y atrofia de los túbulos seminíferos con presencia de células gigantes, necrosis y hemorragia en el tejido renal. Por otra parte, el tratamiento con GA mejoró todos los cambios histológicos previos. En general, la administración oral de GA solamente, o con insulina diariamente durante 4 semanas mejoró los cambios histológicos testiculares. Estos datos demostraron que GA mejoró significativamente los efectos de la diabetes en testículos de rata. Este estudio sugiere que GA podría tener un efecto protector contra las funciones testiculares deterioradas, inducidas por el estrés oxidativo en ratas diabéticas. Los posibles mecanismos de esta acción podrían atribuirse a sus propiedades antioxidantes y antiinflamatorias.

Public Attitude and Perception about Analgesic and their Side Effects

Introduction: Analgesics are substances which work in various ways to relieve different types of pain experienced in the body. Non-prescription over-the-counter (OTC) drugs are widely used by patients to control pain and fever. Study Objective: To evaluate of knowledge, attitudes and practices about analgesic and their side effects.Methods: A cross-sectional study conducted during a period of three months from September to December 2017 in Rafhaand Riyadh -Saudi Arabia on a random sample of 237 Saudi people, the data was collected by using a self-administered questionnaire in the Arabic language. Statistical analysis was done by using MS EXCEL using descriptive statistics and chi-square test. Results: A total of 237 participants out of 260 consented to be interviewed and completed the questionnaire with a response rate (91%). Their ages ranged between 18 years and 54 years with a mean (28) and standard deviation (7.9). Majority of participants were females (92%) and about two thirds (66%) were highly educated. A quarter of study participants (25%) do not read leaflet of analgesic before use. About one-fifth of respondents (20%) reported that they cannot stop taking analgesic even if the pain is mild. 12% and 36% of respondents always and sometimes, respectively, use more than one type of analgesic for pain relief. 10% of respondents reported the occurrence of side effects from analgesic. The respondents use analgesic mainly for headache (43%) andtoothache (25%). The chronic disease for which participants take analgesic were mainly arthritis (39%) and migraine (30%).About three-quarters of respondents (74%) were aware that the use of analgesic is accompanied by side effects. The respondents believed that the reasons for analgesic misuse are that analgesic easily obtained without a medical prescription (40%) and there is no educational or awareness program regarding analgesic use (33%). Majority of participants believed that there is no sufficient awareness about analgesic. The source of information about analgesic for participants is physician (24%). Panadol analgesic is the most commonly used analgesic (48%) reported by participants.Results showed that there is a significant statistical difference between male and female regard analgesic use (P=0.048) and between different level of educations and analgesic use (P=0.334). Also, there is a highly significant statistical difference between male and female regard reading the leaflet before taking analgesic (P=0.0001) and between the educational level of participants regarding reading the leaflet before analgesic use (P=0.0008).Conclusion: The over-the-counter (OTC) analgesic drugs are commonly used and many patients are unaware of their side effects.The findings of this study showed that people's knowledge, attitudes and practices regarding analgesic use is poor. Also, it is important to improve people's knowledge, attitudes and practices regarding analgesic use to reduce the misconceptions and misguided expectations contributing to inappropriate analgesic use. Therefore, health professional practice should play a major role in people's awareness of the appropriate use of OTC analgesic drugs

The protective and antioxidant effects of gum arabic: a review of recent evidence using the new PubMed system

Gum arabic (GA) is an exudate from acacia seyal and acacia senegal trees, which belong to the leguminosae family. There are many applications for GA, such as use as a food additive, shelf-life enhancement, microencapsulation, satiety induction, use as anti-obesity, antimicrobial, and anti-inflammatory agent, use as an anticoagulant, and applications in tumor imaging and nanotechnology. Little has been described about the mechanisms by which GA provides its protective effects, especially its role as an antioxidant, to different body tissues and organs. The aim of this study was to review the recent evidence of the antioxidant effects of GA on different body organs and tissues. The new PubMed system, which was recently released in October 2019, was used to collect and analyze data for this review. There were only seven articles in PubMed that described the antioxidant and protective effects of GA on different body organs and tissues in the period from January 2015 to November 2019; there be four articles from 2019. The results of these studies revealed the protective and antioxidant effects of GA on the liver, kidney and blood and cardiovascular system in experimentally induced injuries of these organs and tissues. Further studies are required to study the protective and antioxidant effects of GA on other body organs and tissues. The new PubMed system is a powerful and smart tool for searching and collecting data and for saving researchers time and effort; it is highly recommended to be widely used.

Anthelmintic activity of nanoencapsulated carvacryl acetate against gastrointestinal nematodes of sheep and its toxicity in rodents / Atividade anti-helmíntica do acetato de carvacrila nanoencapsulado sobre nematoides gastrintestinais de ovinos e toxicidade em roedores

Abstract The objective of this study was to evaluate the efficacy of carvacryl acetate (CVA) and nanoencapsulated CVA (nCVA) on gastrointestinal nematodes of sheep. The CVA was nanoencapsulated with chitosan/gum arabic and the efficacy of nanoencapsulation (EE), yield, zeta potential, nanoparticle morphology and release kinetics at pH 3 and 8 were analyzed. Acute and subchronic toxicity were evaluated in rodents and reduction of egg counts in the faeces (FECRT) of sheep. The sheep were divided into four groups (n = 10): G1, 250 mg/kg CVA; G2, 250 mg/kg nCVA; G3, polymer matrix and G4: 2.5 mg/kg monepantel. EE and nCVA yield were 65% and 57%, respectively. The morphology of the nanoparticles was spherical, size (810.6±286.7 nm), zeta potential in pH 3.2 (+18.3 mV) and the 50% release of CVA at pHs 3 and 8 occurred at 200 and 10 h, respectively. nCVA showed LD50 of 2,609 mg/kg. CVA, nCVA and monepantel reduced the number of eggs per gram of faeces (epg) by 57.7%, 51.1% and 97.7%, respectively. The epg of sheep treated with CVA and nCVA did not differ from the negative control (P>0.05). Nanoencapsulation reduced the toxicity of CVA; however, nCVA and CVA presented similar results in the FECRT.

Resumo O objetivo deste trabalho foi avaliar a eficácia do acetato de carvacrila (ACV) e do ACV nanoencapsulado (nACV) sobre nematóides gastrintestinais de ovinos. O ACV foi nanoencapsulado com quitosana/goma arábica e foi analisada a eficácia de nanoencapsulamento (EE), o rendimento, potencial zeta, morfologia das nanopartículas e cinética de liberação em pH 3 e 8. Foram avaliadas as toxicidades aguda e subcrônica em roedores e a redução da contagem de ovos nas fezes (RCOF) de ovinos. Os ovinos foram divididos em quatro grupos (n = 10): G1, 250 mg/kg ACV; G2, 250 mg/kg de nACV; G3, matriz polimérica e G4: 2,5 mg/kg de monepantel. A EE e o rendimento de nACV foram de 65% e 57%, respectivamente. A morfologia das nanopartículas foi esférica, tamanho (810,6±286,7 nm), potencial zeta no pH 3,2 (+18,3 mV) e a liberação de 50% de CVA nos pHs 3 e 8 ocorreu às 200 e 10 h, respectivamente. nACV apresentou DL50 de 2.609 mg/kg. ACV, nACV e o monepantel reduziram a contagem de ovos por grama de fezes (opg) em 57,7%, 51,1% e 97,7%, respectivamente. A contagem de opg de ovelhas tratadas com ACV e nCVA não diferiu do controle negativo (P>0,05). O nanoencapsulamento reduziu a toxicidade do AVC; no entanto, nACV e ACV apresentaram resultados semelhantes na RCOF.

Evaluation of the learning environment and the perceived weakness of the curriculum: student perspective

Background: Educational environment has been shown to have influence on learning outcome and affects student achievement, satisfaction, and success. The study was conducted to assess medical students’ perception of their learning environment and to explore areas of weakness within the educational environment.Methods: A mixed method of study, was performed using non-probability sampling at the Faculty of Medicine, Gezira University (FMUG), Sudan. An updated Arabic Dundee Ready Education Environment Measure (DREEM) was developed and administered to 854 students during the academic year 2016-2017.Results: Seventy five percent of students completed the inventory (638/854) and Sixty four percent (546/854) responded to the open-ended question providing comments and suggestions. The overall reliability coefficient alpha in this study was 0.914. The global score for this study was found positive (122/200). Students were most satisfied with the learning aspects, academic environment, and academic self-perception. However, they were unsatisfied with their teaching and social atmosphere (inadequate social support for stressed students, substandard teaching, overemphasised factual learning, unpleasant accommodation). The qualitative content analysis was performed and emerged with four themes: the physical environment, a number of students, pedagogical approaches and faculty-student communication.Conclusions: The study suggested the overall students’ perceptions of the educational environment in the FMUG were on the positive side. However, certain specific elements of the learning environment and educational programme need to be critically investigated and remedied. The updated Arabic DREAM can be used reliably in the context of medical education in Arabic speaking countries.

Biochemical effects and safety of Gum arabic (Acacia Senegal) supplementation in patients with sickle cell anemia

BACKGROUND: Sickle cell anemia (SCA) is a hereditary chronic hemolytic anemia with several clinical consequences. Intravascular sickling of red blood cells leads to multi-organ dysfunction. Moreover, several biochemical abnormalities have been associated with SCA. Gum arabic (GA) is an edible dried gummy exudate obtained from Acacia Senegal tree. GA showed antioxidant and cytoprotective activities and demonstrated protection against hepatic, renal, and cardiac toxicities in experimental rats. We hypothesized that regular intake of GA improves renal and liver functions in patients with SCA. METHODS: Forty-seven patients (5–42 yr) carrying hemoglobin SS were recruited. The patients received 30 g/day GA for 12 weeks. Blood samples were collected before administering GA and then after 4, 8, and 12 weeks. Liver enzymes, total protein, albumin, electrolytes, urea, creatinine, and uric acid were determined in the serum. The study was approved by the Al Neelain University Institutional Review Board and Research Ethics Committee Ministry of Health. The trial was registered at ClinicalTrials.gov (identifier: NCT02467257). RESULTS: GA significantly decreased direct bilirubin level [statistical significance (P-value)=0.04]. It also significantly decreased serum alanine transaminase level after 4 weeks, which was sustained till the 8th week. GA, however, had no effect on serum aspartate transaminase level. In terms of renal function, GA decreased serum urea level but the effect was not sustained after the first month. CONCLUSION: GA may alter the disease severity in SCA as demonstrated by its ability to decrease direct bilirubin and urea levels in the serum.

Development, characterization and viability study of probiotic microcapsules produced by complex coacervation followed by freeze-drying / Desenvolvimento, caracterização e estudo da viabilidade de microcápsulas probióticas produzidas por coacervação complexa seguida de liofilização

ABSTRACT: Technique of complex coacervation was used to produce microcapsules of Lactobacillus acidophilus La-5 encapsulated in gelatin and gum arabic which were then freeze-drying. Microcapsules were characterized using scanning electron and optical microscopy, and resistance of probiotics was evaluated during release into a simulated gastrointestinal tract and storage at different temperatures. The complex coacervation process produced microcapsules with a high encapsulation efficiency (77.60% and 87.53%), ranging from 127.14-227.05 μm with uniform distribution. Microencapsulation was an efficient approach to achieve significant protection of probiotics against simulated gastrointestinal conditions compared with free cells. Encapsulation also improved the viability of probiotics during storage at either −18 ºC for 120 days, 7 ºC for 105 days or 25 ºC for 45 days. Therefore, complex coacervation was demonstrated to be adequate and promising for encapsulation of probiotics.

RESUMO: A técnica de coacervação complexa foi utilizada para a produção de microcápsulas contendo Lactobacillus acidophilus La-5 em gelatina e goma arábica seguida de secagem por liofilização. As microcápsulas foram caracterizadas por microscopia óptica e eletrônica de varredura, assim como a resistência dos probióticos frente à liberação "in vitro" ao trato gastrointestinal simulado e ao armazenamento em diferentes condições de temperatura também foram avaliados. O processo de coacervação complexa formou microcápsulas com alta eficiência de encapsulação (77,60% e 87,53%), tamanho compreendido entre 127,14 e 227,05 µm e distribuição uniforme. As microcápsulas foram eficientes em promover a proteção substancial dos probióticos frente às condições gastrointestinais simuladas, em comparação às células livres. A encapsulação também foi eficiente em manter a viabilidade dos probióticos durante o armazenamento em temperaturas de −18 ºC por 120 dias, 7 ºC por 105 dias e 25 ºC por 45 dias. Dessa forma, a coacervação complexa se mostra adequada e promissora para a encapsulação dos probióticos.

Gum arabic and red propolis protecteting colorectal preneoplastic lesions in a rat model of azoxymethane

Abstract Purpose: To evaluate red propolis, gum arabic and L-lysine activity on colorectal preneoplastic lesions induced by azoxymethane (AOM). Methods: The study featured 4 control groups (I-IV) and 4 experimental groups (V-VIII), totaling 48 rats. Once a week for 2 weeks, animals on control groups received saline, while animals in experimental groups received azoxymethane (15 mg/kg i.p.). The follow up along 16 weeks included daily oral gavage to administer water (I and V), L-lysine (150 mg/kg)(II and VI), própolis (100mg/5ml/kg)(III and VII), or gum arabic (5ml/kg)(IV and VIII). Was performed surgery on the animals in the end of this time in order to collect blood for biological assays (TBARS, GSH), followed by their sacrifice to tissue extract. Results: Oxidative stress (TBARS) and the number of aberrant crypt foci (ACF) in distal colon were lower using própolis (p<0.01 for both parameters). Gum arabic reduced preneoplastic lesions (ACF ≤ 4 crypts) on distal colon and on the entire colon (p<0.05). Conclusions: Red propolis reduced AOM-induced oxidative stress (TBARS) and total number of ACF in the distal colon. L-lysine neither protected against nor enhanced AOM-induced ACF. Gum arabic reduced the number of ACF.

Qualidade microbiológica e parasitológica de amostras de quibe cru comercializado nos Municípios de Balneário Camboriú e Itajaí, SC / Microbiological and parasitological quality of raw quibe samples commercialized in the Municipalities of Balneário Camboriú and Itajaí, SC

O presente estudo objetivou avaliar microbiologicamente e parasitologicamente quibes crus comercializados nos municípios de Balneário Camboriú e Itajaí em Santa Catarina. Amostras de oito estabelecimentos foram submetidas às análises exigidas pela RDC nº 12 de 2001 e complementares: Staphylococcus coagulase positiva, Coliformes a 45°C, Salmonella sp., Coliformes a 35°C, bolores e leveduras, bem como análise parasitológica. Os resultados revelaram que as amostras coletadas estavam contaminadas com Staphylococcus coagulase positiva, porém com valores dentro do permitido pela referida legislação, 25% apresentaram Coliformes a 45°C acima do preconizado e quanto à Salmonella sp., todas estavam em conformidade. Dados das análises complementares apresentaram ausência de cistos, ovos e larvas de parasitos, porém alta contagem de Coliformes a 35°C (100%), bolores e leveduras (75%). Conclui-se que é notória a necessidade de cuidado na preparação deste alimento, treinamento para os manipuladores, aplicação de boas práticas na manipulação dos alimentos, higienização adequada dos equipamentos e utensílios, além da necessidade da reformulação da legislação referente aos padrões microbiológicos existentes para a obtenção de um produto com qualidade objetivando a segurança dos alimentos.

The aim of the present study was to evaluate he uncooked kibbe commercialized in the municipalities of Balneário Camboriú and Itajaí, in Santa Catarina, in their microbiological and parasitological aspect. Samples from eight establishments were submitted to analysis required by RDC nº 12 de 2001 and complementary: coagulase positive Staphylococcus, Coliforms at 45°, Coliforms at 35°, Salmonella sp., molds and yeasts, as well as parasitological analysis. The results showed that the collected samples were contaminated with positive coagulase Staphylococcus, but with values within the limits allowed by the legislation, 25% had Coliforms at 45° higher than recommended and for Salmonella sp., all were in compliance. Data from the complementary analyzes showed absence of cysts, eggs and larvae of parasites, but high counts of coliforms at 35° (100%), molds and yeasts (75%). It is concluded that the need for care in the preparation of this food, training for manipulators, application of good practices, adequate hygiene of equipment and utensils, and the need to reformulate the legislation regarding the existing microbiological standards to obtain a product with quality aiming at food safety.

Arabic gum acacia improves diabetic peripheral neuropathy in rats: a biochemical and histopathological evidence

Background: Diabetic peripheral neuropathy (DPN) is a frequent complication of diabetes mellitus and unfortunately, its present therapeutic alternatives are exceptionally poor. Objectives of this study was to assess the antidiabetic, antioxidant and hypolipidemic action of Gum Arabic (GA) and its role in promoting the functional recovery from diabetic neuropathy developed in in an experimental model of diabetic neuropathy.Methods: Sixty adult male Sprague-Dawley rats were utilized and randomly assigned into six groups (n= 10); control, Arabic gum-treated, untreated diabetic, diabetic received metformin, diabetic received metformin and B12 vitamin and diabetic received metformin, B12 vitamin and AG. Locomotor activity and hyperalgesia were assed at the end of the study. Fasting and two hours post-prandial blood glucose, serum insulin levels, lipid Profile, oxidants/antioxidants parameters were assessed in the blood. Sciatic nerve was assessed histopathologically.Results: The locomotor activity of the untreated diabetic rats was significantly (p<0.001) reduced compared to the control group while it was significantly increased in all treated groups. The lipid profile and Malondialdehyde were significantly improved in all treated groups. Levels of CAT, GSH, SOD, GPx were significantly decreased in untreated diabetic group compared to the control while they were significantly increased in all treated groups compared to the untreated diabetic group. Sciatic nerve fibers of untreated diabetic rats showed degenerated axons with dilated myelin sheaths and degenerated Schwann cells. The nerve had significantly fewer fiber compared to the control. These changes were alleviated in all the treated groups specifically that received metformin, vitamin B12 and GA.Conclusions: It could be concluded that Arabic gum had hypoglycemic, antioxidant and hypolipidemic activity and had a protective effect on diabetic neuropathy. Based on this it is recommended that human clinical trials are necessary to prove this therapeutic effect.

Avicena, príncipe de los médicos. Vida, obra y legado para la medicina contemporánea / Avicena, the doctors' prince. Life, works and legacy for the contemporary medicine

La historia de la Medicina está directamente relacionada con el surgimiento del hombre. Desde los tiempos de Hipócrates, antes de nuestra era, cuando existía la incertidumbre de definirla como arte o ciencia, no hubo un médico que entregara tanto aporte verdaderamente investigativo, con carácter científico como Avicena, sabio indiscutible del Medioevo, de los siglos X y XI de la época contemporánea. Su herencia a la humanidad fue muy importante, en especial sobre Filosofía y Medicina, aunque consolidó conceptos y conocimientos de prácticamente todas las áreas del saber. Su nombre llegó casi a ser sinónimo de la propia Medicina. Su monumental obra contribuyó, sin dudas, al desarrollo y a la sedimentación de la civilización humana, trascendó las fronteras del tiempo hasta la actualidad. Fue un hombre multifacético admirable, pero especialmente un médico teórico y práctico incomparable, que con su claridad de ideas y con elevado rigor científico, se trasladó de modo extraordinario hasta la época actual. Su frescura de pensamiento, sus razonamientos, su creatividad científica de fuerza titánica y un estilo único, fueron y aún son, elementos fundamentales para la expansión y el desarrollo de la ciencia universal. En nuestro medio existe poca información sobre la personalidad y la obra de tan distinguida persona, por lo que se realiza la siguiente revisión con el objetivo de profundizar en estos aspectos de su vida y divulgarlos al personal médico en formación(AU)

The history of the Medicine is directly related with the man's emergence. From the times of Hipócrates, before our era, when the uncertainty existed of defining it as art or science, there was not a doctor that gave to this so much truly investigative contribution, with scientific character as Avicena, unquestionable sage of the Middle Ages, of the centuries X and XI of the contemporary time. Its inheritance to the humanity was very important, particularly on Philosophy and Medicine, although it consolidated concepts and knowledge of practically all the areas of the knowledge. Their name ended up almost being synonymous of the own Medicine. Their monumental work contributed, without doubts, to the development and the sedimentation of the human civilization, transcending the frontiers of the time until the present. It was an admirable multifaceted man, but very especially an incomparable theoretical and practical doctor that with their clarity of ideas and with high scientific rigor, it transferred incredibly and in an extraordinary way until the current time. Their thought freshness, their reasoning, their scientific creativity of titanic force and an unique style, they were and they are still, fundamental elements for the expansion and the development of the universal science. In our means little information exists about the personality and so distinguished person's work, for which we carried out the following bibliographical review with the objective to deepen in these aspects of his life and to disclose them to the medical personnel in formation(AU)

Effect of Arabic Gum as Prebiotics and Lactobacillus casei Shirota (LcS) as Probiotic on Oxidative Stress and Renal Function in Adenine–Induced Chronic Renal Failure in Rats

Objectives: This study aimed at assessing the effect of Gum Arabic as Prebiotics and lactobacillus casei shirota (LcS) as probiotic on oxidative stress and renal function in adenine–induced chronic renal failure in rats. Methodology: 70 male albino rats were divided into 7 groups and treated for 8 weeks as follows group 1: control basal diet group (BD), group 2: adenine in feed (0.75%, w/w), group 3: gum Arabic (GA) in drinking water (15%, w/v), group 4: lactobacillus casei shirota (LcS) 1 x 109 colony-forming units (CFU) supplement, group 5 adenine + GA, as before, group 6 adenine +(LcS) as before and group 7: adenine + GA+ (LcS) as before. Urine, blood and kidneys were collected from the rats at the end of the treatment for analysis of conventional renal function tests serum creatinine, urea, uric acid, sodium, potassium concentration). In addition, the oxidative stress markers serum and kidney glutathione and superoxide dismutase, serum catalase and malondialdhyde (MDA) were measured. Results: By the end of the 8 weeks of treatment, Adenine significantly (p <0.05) increased the concentrations of serum creatinine, urea, uric acid, sodium, potassium and serum MDA. In addition, the oxidative stress markers serum and kidney glutathione and superoxide dismutase, serum catalase was, significantly decreased. Treatment with (GA) and (LcS) significantly ameliorated these actions. The mechanism of the reported salutary effect of GA in adenine-induced CRF is associated with mitigation of the adenine- induced inflammation and generation of free radicals. Conclusion: The results suggest that that oral administration of gum Arabic and lactobacillus casei shirota could conceivably alleviate adverse effects of adenine induced renal toxicity (CRF).