scholarly journals Development of novel Vitamin B12 fortified yogurts using isolated and microencapsulated Vitamin B12

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Larisse Melo ◽  
Clementine Ng ◽  
Ricky Tsang ◽  
Anubhav Pratap Singh ◽  
David Kitts ◽  
...  
Keyword(s):  
Vitamin B12 ◽  
Shelf Life ◽  
Milk Fat ◽  
Dairy Product ◽  
Food Sources ◽  
Natural Food ◽  
Fortified Foods ◽  
Related Factors ◽  
Age Related ◽  
Intermittent Sampling

AbstractAdults aged > 50 years, which make up to 40% of the European population, are vulnerable to low vitamin B12 (B12) status due to age-related factors that impair digestion and absorption of protein-bound B12 from natural food sources. Older adults are recommended to meeting their dietary B12 intake through the consumption of B12-fortified foods or supplements because these products contain free B12. B12 seems most bioavailable from milk products compared to other food sources, showcasing dairy as a potential vehicle for B12 food fortification. Yogurt is a versatile, popular dairy product, making it a promising food vehicle for B12 fortification to enhance the availability of B12-fortified foods for population groups at risk of B12 deficiency. With the overall goal to develop a novel, B12-fortified dairy product, the objective of this project was to compare the shelf-life stability of different chemical forms of B12 added to yogurt either in isolated or in encapsulated form. For both fortification strategies, we compared methylcobalamin (MeCB), a naturally-occurring B12 form, and cyanocobalamin (CnCB), the synthetic form of B12. Encapsulated microparticles were created by spray-drying a maize starch-derived polymeric material (EUDRAGUARD Natural®) with 1% (w/V) MeCB or CnCB. The release of B12 from encapsulated microparticles was confirmed by in vitro simulated gastrointestinal digestion; maximum B12 release (103% recovery) was achieved under conditions simulating the small intestine, where B12 is absorbed in the human body. Yogurts were produced by incubating whole milk (3.25% milk fat) with yogurt starter bacteria at 43°C overnight; after fermentation and cooling down, isolated (I-MeCB or I-CnCB) or encapsulated B12 powders (E-MeCB or E-CnCB) in the concentration of 50μg of B12/175 g of yogurt were added, creating stirred yogurt. Yogurts were stored at 4°C for eight weeks, with intermittent sampling for B12 stability testing using RIDASCREEN immunoassay. For CnCB-fortified yogurts, I-CnCB and E-CnCB had similar B12 concentrations at baseline (48.3μg and 48.2μg, respectively) and week 8 (53.9μg and 51.4μg, respectively). Difference in B12 content between I-CnCB and E-CnCB was < 5% for both time-points. For MeCB, similar concentrations were found for I-MeCB (64.1μg) and E-MeCB (65.0μg) at baseline; however, at week 8, E-MeCB remained stable (69.8μg) while a pronounced decrease in B12 was observed with I-MeCB (33.3μg). At week 8, I-MeCB B12 concentrations were 52% lower than E-MeCB. In conclusion, CnCB was shown to be the more stable fortificant throughout shelf-life. Encapsulation techniques are a viable option to increase MeCB stability in fortified yogurts.

scholarly journals Adequate Vitamin D Intake Cannot Be Achieved within Carbon Emission Limits Unless Food Is Fortified: A Simulation Study

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 592
Author(s):  
Maaike J. Bruins ◽  
Ulla Létinois
Keyword(s):  
Vitamin D ◽  
Carbon Footprint ◽  
Carbon Emission ◽  
Total Carbon ◽  
Food Sources ◽  
Calorie Intake ◽  
Natural Food ◽  
Adequate Intake ◽  
Fortified Foods ◽  
Dietary Shifts

This study applied linear programming using a Dutch “model diet” to simulate the dietary shifts needed in order to optimize the intake of vitamin D and to minimize the carbon footprint, considering the popularity of the diet. Scenarios were modelled without and with additional fortified bread, milk, and oil as options in the diets. The baseline diet provided about one fifth of the adequate intake of vitamin D from natural food sources and voluntary vitamin D-fortified foods. Nevertheless, when optimizing this diet for vitamin D, these food sources together were insufficient to meet the adequate intake required, unless the carbon emission and calorie intake were increased almost 3-fold and 2-fold, respectively. When vitamin D-fortified bread, milk, and oil were added as options to the diet, along with increases in fish consumption, and decreases in sugar, snack, and cake consumption, adequate intakes for vitamin D and other nutrients could be met within the 2000 kcal limits, along with a relatively unchanged carbon footprint. Achieving vitamin D goals while reducing the carbon footprint by 10% was only possible when compromising on the popularity of the diet. Adding vitamin D to foods did not contribute to the total carbon emissions. The modelling study shows that it is impossible to obtain adequate vitamin D through realistic dietary shifts alone, unless more vitamin D-fortified foods are a necessary part of the diet.

scholarly journals Blinding in electric current stimulation in subacute neglect patients with current densities of 0.8 A/m2: a cross-over pilot study

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Anna Gorsler ◽  
Ulrike Grittner ◽  
Nadine Külzow ◽  
Torsten Rackoll
Keyword(s):  
Pilot Study ◽  
Electric Fields ◽  
Standard Care ◽  
Small Sample Size ◽  
Small Sample ◽  
Related Factors ◽  
Attentional Deficits ◽  
Age Related ◽  
Current Densities ◽  
Improve Standard

Abstract Objective Neglect after stroke is a disabling disorder and its rehabilitation is a major challenge. Transcranial direct current stimulation (tDCS) seems to be a promising adjuvant technique to improve standard care neglect therapy. Since electric fields are influenced by age-related factors, higher current densities are probably needed for effective treatment in aged stroke patients. Validation of treatment efficacy requires sham-controlled experiments, but increased current densities might comprise blinding. Therefore, a pilot study was conducted to test sham adequacy when using current density of 0.8 A/m2. Whether especially neglect patients who mainly suffer from perceptual and attentional deficits are able to differentiate beyond chance active from sham tDCS was investigated in a randomized cross-over design (active/sham stimulation) in 12 early subacute patients with left-sided hemineglect. Stimulation (0.8 A/m2) was performed simultaneous to standard care neglect therapy. Results Odds ratio of correct guessing an atDCS condition compared to wrongly judge an atDCS condition as sham was 10.00 (95%CI 0.65–154.40, p = 0.099). However, given the small sample size and high OR, although likely somewhat overestimated, results require careful interpretation and blinding success in neglect studies with current densities of 0.8 A/m2 should be further confirmed.

scholarly journals Impact of Polyphenolic-Food on Longevity: An Elixir of Life. An Overview

Antioxidants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 507
Author(s):  
Rosaria Meccariello ◽  
Stefania D’Angelo
Keyword(s):  
Oxidative Stress ◽  
Food Sources ◽  
Preventive Action ◽  
Nutritional Interventions ◽  
Beneficial Effects ◽  
Age Related ◽  
Macromolecular Damage ◽  
And Oxidative Stress

Aging and, particularly, the onset of age-related diseases are associated with tissue dysfunction and macromolecular damage, some of which can be attributed to accumulation of oxidative damage. Recently, growing interest has emerged on the beneficial effects of plant-based diets for the prevention of chronic diseases including obesity, diabetes, and cardiovascular disease. Several studies collectively suggests that the intake of polyphenols and their major food sources may exert beneficial effects on improving insulin resistance and related diabetes risk factors, such as inflammation and oxidative stress. They are the most abundant antioxidants in the diet, and their intake has been associated with a reduced aging in humans. Polyphenolic intake has been shown to be effective at ameliorating several age-related phenotypes, including oxidative stress, inflammation, impaired proteostasis, and cellular senescence, both in vitro and in vivo. In this paper, effects of these phytochemicals (either pure forms or polyphenolic-food) are reviewed and summarized according to affected cellular signaling pathways. Finally, the effectiveness of the anti-aging preventive action of nutritional interventions based on diets rich in polyphenolic food, such as the diets of the Blue zones, are discussed.

scholarly journals Vagus Nerve Stimulation Ameliorates Cognitive Impairment and Increased Hippocampal Astrocytes in a Mouse Model of Gulf War Illness

2021 ◽  
Vol 16 ◽  
pp. 263310552110184
Author(s):  
Lavanya Venkatasamy ◽  
Damir Nizamutdinov ◽  
Jaclyn Jenkins ◽  
Lee A Shapiro
Keyword(s):  
Vagus Nerve ◽  
Nerve Stimulation ◽  
Vagus Nerve Stimulation ◽  
Gulf War ◽  
Gulf War Illness ◽  
Related Factors ◽  
Cytokines And Chemokines ◽  
Age Related ◽  
Hippocampal Astrocytes ◽  
Emotional Deficits

Gulf war illness (GWI), is a chronic multi-symptom illness that has impacted approximately one-third of the veterans who served in the 1990 to 1991 Gulf War. GWI symptoms include cognitive impairments (eg, memory and concentration problems), headaches, migraines, fatigue, gastrointestinal and respiratory issues, as well as emotional deficits. The exposure to neurological chemicals such as the anti-nerve gas drug, pyridostigmine bromide (PB), and the insecticide permethrin (PER), may contribute to the etiologically related factors of GWI. Various studies utilizing mouse models of GWI have reported the interplay of these chemical agents in increasing neuroinflammation and cognitive dysfunction. Astrocytes are involved in the secretion of neuroinflammatory cytokines and chemokines in pathological conditions and have been implicated in GWI symptomology. We hypothesized that exposure to PB and PER causes lasting changes to hippocampal astrocytes, concurrent with chronic cognitive deficits that can be reversed by cervical vagus nerve stimulation (VNS). GWI was induced in CD1 mice by injecting the mixture of PER (200 mg/kg) and PB (2 mg/kg), i.p. for 10 consecutive days. VNS stimulators were implanted at 33 weeks after GWI induction. The results show age-related cognitive alterations at approximately 9 months after exposure to PB and PER. The results also showed an increased number of GFAP-labeled astrocytes in the hippocampus and dentate gyrus that was ameliorated by VNS.

scholarly journals Contribution of food sources to the vitamin B12 status of South Indian children

2013 ◽  
Vol 72 (OCE5) ◽  
Author(s):  
A. M. Christian ◽  
G. V. Krishnaveni ◽  
S. Kehoe ◽  
S. R. Veena ◽  
R. Khanum ◽  
...  
Keyword(s):  
Vitamin B12 ◽  
Food Sources ◽  
Indian Children ◽  
South Indian

Tethered-flight and Age-related Reproductive Performance of Helicoverpa punctigera (Wallengren) and H. armigera (Hubner) (Lepidoptera: Noctuidae)

1997 ◽  
Vol 45 (4) ◽  
pp. 409 ◽  
Author(s):  
Marc Coombs
Keyword(s):  
Adult Life ◽  
Reproductive Activity ◽  
Food Sources ◽  
Age Related ◽  
Tethered Flight ◽  
Flight Capacity ◽  
Early Adult Life ◽  
Adult Lives ◽  
Lepidoptera Noctuidae ◽  
Adult Food

Flight capacity of female and male moths was age dependent in both H. punctigera and H. armigera using a tethered-flight technique. In H. punctigera, flight capacity increased from the first night following emergence up to Night 4, and was maintained at least until Night 10. In H. armigera, a peak in flight capacity occurred on Night 4, followed by a decline with increasing age. Long-flying moths (> 5 h duration) were evident in both species from the night following emergence. Attainment of reproductive maturity was rapid in both species, with 91% of H. punctigera and 77% of H. armigera ovipositing by Night 3. Hence, the increase in flight capacity recorded for both species during early adult life is coincident with the onset of reproductive activity. Both species retain the capacity for extensive inter-crop and inter-regional movement throughout most of the reproductive phase of their adult lives. Neither successful mating or the absence of adult food sources influenced flight capacity during early adult life.

scholarly journals Consumption of dairy products and the 15-year incidence of age-related macular degeneration

2014 ◽  
Vol 111 (9) ◽  
pp. 1673-1679 ◽  
Author(s):  
Bamini Gopinath ◽  
Victoria M. Flood ◽  
Jimmy C. Y. Louie ◽  
Jie Jin Wang ◽  
George Burlutsky ◽  
...  
Keyword(s):  
Dairy Products ◽  
Dairy Product ◽  
Age Related Macular Degeneration ◽  
Dairy Foods ◽  
Product Consumption ◽  
Reduced Fat ◽  
Age Related ◽  
Increased Risk ◽  
Dairy Product Consumption

Habitual consumption of dairy products has been shown to play an important role in the prevention of several chronic diseases. We aimed to prospectively assess the relationship between the change in dairy product consumption (both regular fat and low/reduced fat) and the 15-year incidence of age-related macular degeneration (AMD). In the Blue Mountains Eye Study, 2037 participants aged 49 years or above at baseline were re-examined at follow-up in 1997–9, 2002–4 and/or 2007–9. AMD was assessed from retinal photographs. Dietary data were collected using a semi-quantitative FFQ, and servings of dairy product consumption calculated. Over the 15-year follow-up, there were 352, 268 and eighty-four incident cases of any, early and late AMD, respectively. After adjusting for age, sex, current smoking, white cell count and fish consumption, a significant linear trend (Pfor trend = 0·003) was observed with decreasing consumption of total dairy foods and the 15-year incidence of late AMD, comparing the lowestv.highest quintile of intake (OR 2·80, 95 % CI 1·21, 3·04). Over the 15 years, decreased consumption of reduced-fat dairy foods was associated with an increased risk of incident late AMD, comparing the lowest to highest quintile of intake (OR 3·10, 95 % CI 1·18, 8·14,Pfor trend = 0·04). Decreasing total dietary Ca intake over the 15 years was also associated with an increased risk of developing incident late AMD (multivariable-adjustedPfor trend = 0·03). A lower consumption of dairy products (regular and low fat) and Ca was independently associated with a higher risk of developing incident late AMD in the long term. Additional cohort studies are needed to confirm these findings.

ANTICOAGULANT THERAPY IN CANCER PATIENTS WITH ATRIAL FIBRILLATION. CONSIDERING AGE FACTOR

2020 ◽  
pp. 99-106
Author(s):  
В. И. Потиевская ◽  
А. А. Ахобеков ◽  
М. Ф. Баллюзек
Keyword(s):  
Atrial Fibrillation ◽  
Cancer Patients ◽  
Anticoagulant Therapy ◽  
Oral Anticoagulants ◽  
Direct Oral Anticoagulants ◽  
Current Data ◽  
Related Factors ◽  
Age Related ◽  
Liver And Kidney ◽  
After Cancer

Рассматривается современное состояние вопроса выбора антикоагулянтной терапии при фибрилляции предсердий (ФП) у онкологических больных. Отмечается, что сложность выбора антикоагулянта при злокачественных новообразованиях (ЗНО) определяется такими факторами, как коморбидные сердечно-сосудистые заболевания, нарушения функции печени и почек, метаболические дисфункции, свойственные, прежде всего, пациентам старшей возрастной группы. Приводятся актуальные данные по оценке риска геморрагических и тромбоэмболических осложнений ФП при ЗНО в аспекте возраста. Обсуждаются возможные причины увеличения риска развития ФП во время и после лечения ЗНО, в том числе и в связи с возраст-ассоциированностью этих патологий. Рассмотрены вопросы выбора антикоагулянтов у пациентов, находящихся на активной противоопухолевой терапии, особенно на препаратах из группы прямых оральных антикоагулянтов (ПОАК). Согласно данным обсервационных исследований, именно ПОАК являются перспективным, относительно безопасным и эффективным выбором для онкологических пациентов с ФП, в связи с чем их применение должно активно изучаться в рандомизированных клинических исследованиях с учетом фактора возраста. Подчеркивается, что подбор схемы антикоагулянтной терапии у пациентов с ФП и ЗНО требует междисциплинарного участия кардиологов и онкологов, а часто и гериатров, чтобы индивидуализировать лечение и предложить наиболее эффективную терапию. The current issue of the choice of anticoagulant therapy of atrial fibrillation (AF) in cancer patients is considered. It is noted that the difficulty of choosing an anticoagulant in malignancies is largely determined by age-related factors, such as comorbid cardiovascular diseases, liver and kidney dysfunction, metabolic disorders common for in elderly patients. Current data on the risk assessment of hemorrhagic and thromboembolic complications of AF in cancer patients in the aspect of age presented. During and after cancer treatment, the risk of developing AF can increase, also in connection with the age-associated pathology. Possible reasons of it are discussed. The choice of different anticoagulants groups in patients treated with anticancer therapy, including direct oral anticoagulants (DOAC) is considered. According to available data from observational studies, it is the DOAC that is a promising, relatively safe and effective choice for cancer patients with AF, and therefore their use should be actively studied in randomized trials, considering the factor of age. It is particularly noted that solving this problem requires the interdisciplinary involvement of cardiologists, oncologists, and sometimes, geriatrics, to individualize treatment for each case and to offer the most effective therapy.

scholarly journals Differential expression of apoptosis-related factors induces the age-related apoptosis of the gracilis muscle in humans

2014 ◽  
Vol 33 (5) ◽  
pp. 1110-1116 ◽  
Author(s):  
SOO YEON PARK ◽  
JUNG HWAN LEE ◽  
HA YOUNG KIM ◽  
KYOUNG HO YOON ◽  
SEONG KYU PARK ◽  
...  
Keyword(s):  
Differential Expression ◽  
Gracilis Muscle ◽  
Related Factors ◽  
Age Related

scholarly journals What influences diet quality in older people? A qualitative study among community-dwelling older adults from the Hertfordshire Cohort Study, UK

2017 ◽  
Vol 20 (15) ◽  
pp. 2685-2693 ◽  
Author(s):  
Ilse Bloom ◽  
Wendy Lawrence ◽  
Mary Barker ◽  
Janis Baird ◽  
Elaine Dennison ◽  
...  
Keyword(s):  
Older Adults ◽  
Cohort Study ◽  
Older People ◽  
Social Engagement ◽  
Community Dwelling ◽  
Related Factors ◽  
Age Related ◽  
Hertfordshire Cohort Study ◽  
The Uk ◽  
Community Dwelling Older Adults

AbstractObjectiveTo explore influences on diet in a group of community-dwelling older adults in the UK.DesignData were collected through focus group discussions with older people; discussions were audio-recorded, transcribed verbatim and transcripts analysed thematically.SettingHertfordshire, UK.SubjectsParticipants were sampled purposively from the Hertfordshire Cohort Study, focusing on those whose diets had been assessed at two time points: 1998–2001 and 2011.ResultsNinety-two adults participated (47 % women; 74–83 years) and eleven focus groups were held. A number of age-related factors were identified that were linked to food choices, including lifelong food experiences, retirement, bereavement and medical conditions, as well as environmental factors (such as transport). There appeared to be variability in how individuals responded to these influences, indicating that other underlying factors may mediate the effects of age-related factors on diet. Discussions about ‘keeping going’, being motivated to ‘not give up’, not wanting to be perceived as ‘old’, as well as examples of resilience and coping strategies, suggest the importance of mediating psychological factors. In addition, discussion about social activities and isolation, community spirit and loneliness, indicated the importance of social engagement as an influence on diet.ConclusionsInterventions to promote healthier diets in older age should take account of underlying psychological and social factors that influence diet, which may mediate the effects of age-related factors.

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