Reema Tayyem
The Hashemite University, Clinical Nutrition and Dietetics, Faculty Member
As contract research organizations are now familiar with GXPs and have become more popular for conducting bioequivalence studies, it is very important that the sponsor has the assurance that the study has been conducted not only to the... more
As contract research organizations are now familiar with GXPs and have become more popular for conducting bioequivalence studies, it is very important that the sponsor has the assurance that the study has been conducted not only to the highest standard of science but also in compliance with regulatory requirements. The dynamic role of quality personnel requires alert knowledgeable people to
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ABSTRACT This cross-sectional study aimed to evaluate the dietary profile of patients with type 2 diabetes in northern Jordan. 750 patients aged between 22 and 84 years were recruited from the endocrinology clinics at King Abdulla... more
ABSTRACT This cross-sectional study aimed to evaluate the dietary profile of patients with type 2 diabetes in northern Jordan. 750 patients aged between 22 and 84 years were recruited from the endocrinology clinics at King Abdulla University Hospital in northern Jordan. Dietary assessment was performed using valid semi-quantitative food frequency questionnaire (FFQ). Glycosylated hemoglobin, height, body weight and waist circumference were measured. Both, males and females, failed to meet the recommended target of glycosylated hemoglobin, BMI, and waist circumference. Patients reported high intakes of fruits (~4.5 servings/day) and grains (~17 servings/day); enough intakes of vegetables (~4 servings/day) and low intakes of milk (~1.5 servings/day), meat and beans (~1 serving/day). High intakes of fiber, simple sugar and sodium were observed. Macronutrient contribution to daily caloric consumption was 65 % from carbohydrates, 13 % protein, and 29 % fat (distributed as 8 % from saturated fat, 14 % from monounsaturated fat, and 3.5 % from polyunsaturated fat). In conclusion, the dietary profile for diabetic patients in Jordan failed to meet the recommendations in several aspects including, high consumption of carbohydrates, sugar, and sodium; and low intake of PUFA.
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The role of diet in colorectal cancer (CRC) in Jordan has not been studied previously. This study aimed at examining the association between food groups (including grains, fruits, vegetables, milk, and meat and legumes) and CRC risk in... more
The role of diet in colorectal cancer (CRC) in Jordan has not been studied previously. This study aimed at examining the association between food groups (including grains, fruits, vegetables, milk, and meat and legumes) and CRC risk in Jordan. We compared intakes of the different food groups among CRC patients (n=167) and matched controls (n=240) by age, sex, occupation, and marital status. A validated food frequency questionnaire was used to collect dietary data. Logistic regression was used to evaluate the association of quartiles of intakes of the different food groups with CRC risk. In addition, the association of selected food items with CRC risk was examined. Odds ratios (ORs) for the fourth versus the first quartile of intake were 2.92 [95% confidence interval (CI): 1.40-6.08] for grains, 1.66 (95% CI: 0.81-3.40) for vegetables, 0.55 (95% CI: 0.26-1.16) for fruits, 0.96 (95% CI: 0.46-1.97) for milk, and 1.43 (95% CI: 0.68-2.98) for meat and legumes. In a comparison of the highest with the lowest weekly frequency of consumption, there was a direct association between the risk of CRC and the frequency of consumption of chicken (OR=2.52, 95% CI: 1.33-4.77). An increase in risk was observed with increased consumption of white bread (OR=3.13, 95% CI: 1.18-9.25), whereas consumption of whole bread was associated with a decreased risk for CRC (OR=0.32, 95% CI: 0.12-0.84). Our results support a role of diet in CRC. Direct associations were found for grains, white bread, and chicken, whereas an inverse relation was reported for whole bread.
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Assessing patients' current stage of change toward 6 healthy behaviors related to diabetes control. Behaviors studied were smoking cessation (2) regular exercise; (3) consuming 5... more
Assessing patients' current stage of change toward 6 healthy behaviors related to diabetes control. Behaviors studied were smoking cessation (2) regular exercise; (3) consuming 5 servings or more of fruits and vegetables; (4) decreasing intake of refined sugar; (5) reducing saturated fat; and (6) self monitoring of blood glucose (SMBG). Stage of change (SOC) for several diabetes control-related behaviors was assessed for 737 patients with type 2 diabetes using a staging algorithm. Socio-demographic data were collected by a structured interview-based questionnaire. There was high degree of readiness toward consuming diets with less saturated fat and simple sugar. Very low degree of readiness was reported for self-monitoring of blood glucose on a regular bases and for practicing physical exercise. Half of the participants (50.9%) were in the precontemplation stage for consuming ≥5 servings of fruits and vegetables every day. Significant correlations were obtained between the degree of readiness for several behaviors (p<0.01). Age, gender, income and education were all related to the stage of change of the studied behaviors (p<0.01). Patients with diabetes in Jordan are still in the pre-action stages for practicing exercise, consuming 5 servings or more of fruit and vegetable, and self-monitoring of blood glucose. The current finding suggests a need for nutritional education and interventions to raise awareness of lifestyle factors influencing glycemic control among diabetics.
Research Interests: Health Behavior, Treatment Outcome, Multivariate Analysis, Humans, Smoking Cessation, and 18 moreBlood Glucose, Female, Male, Patient Compliance, Exercise, Fruit, Vegetables, Middle Aged, Questionnaires, Food habits, Adult, Odds ratio, Biological markers, Type 2 Diabetes Mellitus, Cross Sectional Studies, Self monitoring of blood glucose, Logistic Models, and Predictive value of tests
Research Interests: Nutrition and Dietetics, Anthropometry, Chronic kidney disease, Jordan, Phosphorus, and 25 moreHumans, Female, Hemodialysis, End Stage Renal Failure, Male, Potassium, Nutritional Status, Body Mass Index, Risk factors, Clinical Sciences, Prevalence, Middle Aged, Fat Mass, Adult, Cross Section, Renal Nutrition, Time Factors, Age Factors, Risk Factors, Review of Literature Protein Energy Malnutrition, Cross Sectional Studies, Chronic Kidney Failure, Renal Dialysis, Skinfold Thickness, and Serum albumin
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β-Thalassemia (β-thal) is associated with abnormal synthesis of hemoglobin (Hb). Repeated blood transfusions in patients with β-thal major (β-TM) leads to an enhanced generation of reactive oxygen species (ROS), and subjects patients to... more
β-Thalassemia (β-thal) is associated with abnormal synthesis of hemoglobin (Hb). Repeated blood transfusions in patients with β-thal major (β-TM) leads to an enhanced generation of reactive oxygen species (ROS), and subjects patients to peroxidative injury. We studied the antioxidant status and oxidative damage to children with β-thal in Jordan. Samples from 40 children with β-thal and 40 healthy controls were used. All children were under 13 years of age. Our results showed that plasma thiobarbituric acid reactive substances (TBARS) were elevated in β-thalassemic children compared to controls together with compensatory increase in superoxide dismutase (SOD) activity and decrease in catalase (CAT) activity. Elevated serum ferritin showed positive correlation with elevated liver enzyme levels except gamma glutamyl transferase (GGT), confirming liver involvement due to iron overload. Serum ferritin also showed a positive correlation with elevated TBARS and SOD, suggesting that iron overload is involved in the oxidative stress shown in cells.
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Curcumin, derived from the rhizome curcuma longa, is one of the primary ingredients in turmeric and curry powders that are used as spices in Middle Eastern and Asian countries, especially on the Indian subcontinent. More recently,... more
Curcumin, derived from the rhizome curcuma longa, is one of the primary ingredients in turmeric and curry powders that are used as spices in Middle Eastern and Asian countries, especially on the Indian subcontinent. More recently, laboratory studies have demonstrated that dietary curcumin exhibits various biological activities and significantly inhibits colon tumorigenesis and tumor size in animals. Curcumin displays both anti-inflammatory and antioxidant properties, giving it the potential to be considered in the development of cancer preventive strategies and applications in clinical research. Experimental studies have shown the biological activities of the compound, but much more information on pharmacokinetics, bioavailability, and food content are needed. Whether the amount of curcumin in turmeric and curry powders is sufficient to suggest effects on biological activities and cancer risk is unknown. To determine and compare the quantitative amounts of curcumin that are present ...