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The purpose of this study is to determine which of the Ethiopian honeys slowly/rapidly raise the blood glucose level.
Addis Ababa University, College of Natural Sciences, Research Institutional Review Board (IRB) approved this study. Written consent forms were obtained from all 14 volunteers (7 females and 7 males). The subjects were randomly recruited from twenty eight 3rd year Food Science and Postharvest Technology students. People volunteering to participate in the study were excluded if they are: overweight, dieting, smoking, a family history of diabetes, pregnant, metabolic disorders, suffering from any illness or food allergy and regularly taking medication. The participants were checked for glucose tolerance according to the WHO (World Health Organization) classification (fasting glucose <7 mmol/L(millimole per lite) and 2-hour blood glucose concentration after a 25g glucose load <7.8 mmol/L). Ten (5 females and 5 males) were selected from fourteen using lottery sampling methods. Reference glucose and monofloral honeys were used as experimental foods. To determine the GI value, 25 grams of available carbohydrate was fed for ten healthy people in the morning after they have fasted for 11 hours overnight. After fasting blood sample was obtained. The study participants were consumed each honey and reference glucose served. Additional blood samples were taken at 15, 30, 45, 60, 90 and 120 minutes after eating commenced. Blood glucose response (Area under the curve, AUCt) for test food was compared to the blood glucose response of reference glucose (AUCr). AUC was calculated using SAS (Statistical Analysis Software), 2002. Glycemic index (GI) was calculated using:
GI= AUCt/AUCr*100
Where:
AUCt = Area Under the Curve for honey; AUCr = Area Under the Curve for the reference glucose
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Provision of experimental honeys | Experimental | Eight experimental monofloral honeys and reference glucose |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Provision of experimental honey | Biological | Acacia, Becium grandiflorum, Croton macrostachys, Eucalyptus globules, Hypoestes, Leaucas abyssinica, Schefflera abyssinica, Syzygium guineense and reference glucose were used as test food. 25g available carbohydrate of the test food was provided to ten human subjects after fasted for 11 hours overnight. |
| Measure | Description | Time Frame |
|---|---|---|
| Examine Effect of Monofloral Honey Types on Glycemic Index of Health Human Subjects | Ten healthy individuals consumed monofloral honeys (25g of available carbohydrate in 250 mL water) after fasting for 11 hours. Blood glucose levels (mmol/L) were recorded at 0, 15, 30, 45, 60, 90 and 120 minutes. Time (0, 15, 30, 45, 60, 90 and 120 minutes) verse blood glucose levels (mmol/L) used to establish the area under the curve (AUC) for the honeys and reference glucose. This was used to calculate the glycemic index of honey each honey (GI= AUC for honey/AUC for reference glucose*100). All 10 participants took eight different honeys and reference glucose on nine different days (with randomized allocation of samples). | 36 days (9 tests in 4 days interval) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Abera Belay, PhDCandidate | Addis Ababa University | Principal Investigator |
| Gulelat Haki, Professor | Department of Food Science and Technology, Botswana College of Agriculture, University of Botswana. | Study Chair |
| Kaleab Baye, Asst Prof. | Addis Ababa University | Study Chair |
| Samuel Melaku, Assoc Prof. | Columbus State University | Study Chair |
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Due to the Ethical issue, sharing data to 3rd party is not decided yet.
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The Addis Ababa University, College of Natural Sciences, Research Institutional Review Board (IRB) approved this study. Written consent forms were obtained from all 14 volunteers (7 females and 7 males).
After a through orientation on research objectives to 3rd year Food Science & Technology students, 14 volunteer free of: overweight, dieting, smoking, family history of diabetes, pregnant, metabolic disorders, and suffering from food allergy were selected. Out of 14 eligible students, 5female and 5male students were selected using lottery sampling.
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| ID | Title | Description |
|---|---|---|
| FG000 | Honey Glycemic Index | Study participants were given 25g available carbohydrate of reference glucose or monofloral honeys of Acacia, Becium grandiflorum, Croton macrostachys, Eucalyptus globules, Hypoestes, Leaucas abyssinica, Schefflera abyssinica, Syzygium guineense in 250 mL of water, after they have fasted for 11 hours overnight. Monofloral honeys, namely: collected from honey productive areas; and reference glucose were used as a test food. 25g available carbohydrate of the test foods was provided to all ten human subjects after fasted for 11 hours overnight. After fasting blood sample was collected from the finger. Additional blood samples were taken at 15, 30, 45, 60, 90 and 120 minutes. Glucose concentration of blood samples was used to draw a two-hour blood glucose response curve. Area under curve (AUC) for test food and reference glucose was calculated by trapezoidal rule. |
| Title | Milestones | Reasons Not Completed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
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| ID | Title | Description |
|---|---|---|
| BG000 | Provision of Experimental Honeys | Monofloral honeys, namely: Acacia, Becium grandiflorum, Croton macrostachys, Eucalyptus globules, Hypoestes, Leaucas abyssinica, Schefflera abyssinica, Syzygium guineense collected from honey productive areas; and reference glucose were used as a test food. 25g available carbohydrate of the test foods was provided to all ten human subjects after fasted for 11 hours overnight. After fasting blood sample was collected from the finger. Additional blood samples were taken at 15, 30, 45, 60, 90 and 120 minutes. Glucose concentration of blood samples was used to draw a two-hour blood glucose response curve. Area under curve (AUC) for test food and reference glucose was calculated by trapezoidal rule. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Examine Effect of Monofloral Honey Types on Glycemic Index of Health Human Subjects | Ten healthy individuals consumed monofloral honeys (25g of available carbohydrate in 250 mL water) after fasting for 11 hours. Blood glucose levels (mmol/L) were recorded at 0, 15, 30, 45, 60, 90 and 120 minutes. Time (0, 15, 30, 45, 60, 90 and 120 minutes) verse blood glucose levels (mmol/L) used to establish the area under the curve (AUC) for the honeys and reference glucose. This was used to calculate the glycemic index of honey each honey (GI= AUC for honey/AUC for reference glucose*100). All 10 participants took eight different honeys and reference glucose on nine different days (with randomized allocation of samples). | All 10 participants took, 25g available carbohydrate of eight different honeys and reference glucose, on nine different days in 4 days interval. Blood was taken from finger prick using automatic lancet at 0, 15, 30, 45, 60, 90 and 120 minutes; glucose levels were recorded and area under the blood glucose curve was calculated. | Posted | Mean | Standard Deviation | Index | 36 days (9 tests in 4 days interval) |
|
Total Number of participants Affected: 0 Total Number of participants at Risk: 10
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Honey Glycemic Index | Study participants were given 25g available carbohydrate of reference glucose or honey in 250 mL of water, after they have fasted for 11 hours overnight. |
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| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Abera Belay (PhD Candidate) | Addis Ababa University [Office telephone +251011-655-1927] | Mobile +251911840655 | ab.berabelay@gmail.com |
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| ID | Term |
|---|---|
| D006943 | Hyperglycemia |
| ID | Term |
|---|---|
| D044882 | Glucose Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
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|
| Participants |
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| Age, Continuous | Mean | Standard Deviation | years |
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| Gender | Count of Participants | Participants |
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| Blood glucose level (mmol/L) | Participants with a blood glucose level of <7 mmol/L after fasting (0 time) | Number | Participant |
|
| OG000 | Provision of Experimental Honeys | Monofloral honeys, namely: Acacia, Becium grandiflorum, Croton macrostachys, Eucalyptus globules, Hypoestes, Leaucas abyssinica, Schefflera abyssinica, Syzygium guineense collected from honey productive areas; and reference glucose were used as a test food. 25g available carbohydrate of the test foods was provided to ten human subjects after fasted for 11 hours overnight. After fasting blood sample was collected from the finger. Additional blood samples were taken at 15, 30, 45, 60, 90 and 120 minutes. Glucose concentration of blood samples was used to draw a two-hour blood glucose response curve. Area under curve (AUC) for test food and reference glucose was calculated by trapezoidal rule. |
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| 0 |
| 10 |
| 0 |
| 10 |
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