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The study ""Nutritional trial with fortified milk in 65+ years old subjects" is a part of a complex research project and multi-sectoral development (MIAO 50) with the participation of University Research Institutes and small and medium Italian enterprises.
The general objective of the call is to promote the collaboration between the best scientific knowledge, both epidemiological and experimental, and the most advanced technologies to develop foods with a nutritional profile adequate to the needs of consumers with an age over 50 years old, which are easy to use and make it possible to eat in a healthy manner, complete and balanced and also meets the quality and flavors of traditional Italian.
Aging is associated with a functional decline of most physiological systems including the immune system. It could be hypothesized that an inadequate nutritional status may amplify the effects of a low-grade chronic inflammation associated with age influencing the functionality of the immune systems, the resistance to infections, the cognitive function and contributing to an increased morbidity and mortality. Indeed experimental evidence indicate that improving the nutritional status attenuates the decline in immune and cognitive functions, in physical performance associated with age by helping to improve the level of Quality of Life.
Therefore, the present study focus on nutrients and micronutrient which have a role in fighting oxidative stress, in the regulation of inflammatory responses and the immune system.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| fortified milk | Experimental | The subjects assumed daily 250 ml of fortified milk for 12 weeks. Then, after a period of wash-out of 12-14 weeks they start to assume placebo milk for 12 weeks. |
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| placebo milk | Placebo Comparator | The subjects assumed daily 250 ml of placebo milk. Then, after a period of wash-out of 12-14 weeks they start to assume fortified milk for 12 weeks. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| fortified milk | Dietary Supplement | "Fortified"Ultra-high temperature (UHT), partly-skimmed milk (1.6% fat), highly digestible (lactose <0.5%) produced by Granarolo s.p.a. supplemented with long chain unsaturated fatty acids DHA (Docosahexaenoic acid) +EPA (Eicosapentaenoic acid), vitamin D, B12, B6, B9, E,C, Zinc and Selenium versus "placebo" Ultra-high temperature (UHT), partly-skimmed milk (1.6% fat), highly digestible (lactose <0.5%) of the same manufacturer. The nutrients added are: DHA + EPA 1.4 mg/ml; vitamin D3 0.068 mcg/ml; B6 6.4 mcg/ml; B12 0.01 mcg/ml; B9 (folic acid) 0.80 mcg/ml; vitamin E 0.05 mg/ml; vitamin C 0.19 mg/ml; Zinc 0.04 mg/ml; Selenium 0.22 mcg/ml. The protein content of the milk is 0.04 g/ml. |
| Measure | Description | Time Frame |
|---|---|---|
| Global health status | The health status is evaluated by a tests regarding the cognitive function, the functional status, the perceived health status. | Change from baseline global health status at 12 weeks of milk intake |
| Measure | Description | Time Frame |
|---|---|---|
| Circulating levels of lipoproteins (Total, HDL and LDL-cholesterol, triglycerides) | total cholesterol is measured as milligram/100milliliters (mg/100ml); HDL-cholesterol as milligram/100milliliters (mg/100ml); LDL-cholesterol as milligram/100milliliters (mg/100ml); triglycerides as milligram/100milliliters (mg/100ml). | change from baseline total, HDL, and LDL-cholesterol and triglycerides at 12 weeks of milk intake |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Claudio Franceschi, MD | University of Bologna | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Bologna-Department of Speciality, Diagnostic and Experimental Medicine | Bologna | Bologna | 40126 | Italy |
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| Levels of blood glucose, creatinine, liver transaminases, homocysteine, folic acid | Glucose was measured as milligram/deciliter (mg/dl); creatinine as milligram/deciliter (mg/dl), liver transaminases as International units/liter (U/L); homocysteine as micromoles/L and folic acid as nanogram/milliliter (ng/ml) | Change from Baseline levels of glucose, creatinine, liver transaminases, homocysteine and folic acid at 12 weeks of milk intake |
| Circulating levels of vitamin D, vitamin E, vitamin B6 and vitamin B12 | Vitamin D was measured as nanogram/milliliters (ng/ml); vitamin E as micrograms/milliliters (mcg/ml); vitamin B6 as micrograms/liter (mcg/L) and vitamin B12 as picograms/milliliters (pg/ml) | Change from Baseline levels of vitamin D, vitamin E, vitamin B6 and vitamin B12 at 12 weeks of milk intake |
| Fatty acid composition of red blood cell membranes as an index of cellular homeostasis | Change from Baseline fatty acid composition of red blood cell membranes at 12 weeks of milk intake |
| Circulating levels of trace elements such as zinc and selenium | Zinc and selenium were measured as microgram/liter (mcg/L) | Changes from Baseline levels of zinc and selenium at 12 weeks of milk intake |
| Oxidation state of cellular proteins | Change from Baseline oxidation state of cellular proteins at 12 weeks of milk intake |
| Circulating levels of proteins related to inflammatory status such as C reactive protein (CRP); fibrinogen and pro and anti-inflammatory cytokines. | C reactive protein was measured as milligram/liter (mg/l); fibrinogen as milligram/deciliter (mg/dl); hs-IL6 and hs-IL10 as picograms/milliliter (pg/ml) | Changes from baseline CRP, fibrinogen, high sensitivity interleukin 6 (hs-IL6) and high sensitivity interleukin 10 (hs-IL10) |
| Blood count and assessment of major lymphocyte sub-populations | Change from Baseline lymphocyte subsets at 12 weeks of milk intake |