scholarly journals Effects of Late-Life Caloric Restriction on Age-Related Alterations in the Rat Cortex and Hippocampus

Nutrients ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 232
Author(s):  
Claudia Tonini ◽  
Marco Segatto ◽  
Francesca Martino ◽  
Luisa Cigliano ◽  
Martina Nazzaro ◽  
...  

Background: A major problem of aging is the disruption of metabolic homeostasis. This is particularly relevant in the brain where it provokes neurodegeneration. Caloric restriction is a physiologic intervention known to delay the deleterious consequences of aging in several species ranging from yeast to mammals. To date, most studies on experimental models have started this dietary intervention from weaning, which is very difficult to be translated to human beings. Here, we study the effects of a more realistic dietary regimen in rats, starting at an advanced age and lasting for six months. Methods: we analyzed in the cortex and hippocampus, the proteins involved in the energetic balance of the cells, cholesterol metabolism, oxidative stress response, inflammation, synaptic impairment, and brain trophism. Results: our results suggest that caloric restriction in late life can revert only some age-related changes studied here.

2006 ◽  
Vol 2 ◽  
pp. S619-S619 ◽  
Author(s):  
Ivona Brasnjevic ◽  
Bart P.F. Rutten ◽  
Imke A.J. van Kooten ◽  
Hubert Korr ◽  
Harry W.M. Steinbusch ◽  
...  

2020 ◽  
Author(s):  
Daochuan Li ◽  
Shen Chen ◽  
Qiong Li ◽  
Liping Chen ◽  
Haiyan Zhang ◽  
...  

Abstract Background: Caloric restriction (CR) is known to improve health and extend life span in human beings. The effects of CR on adverse health outcomes in response to particulate matter (PM) exposure and the underlying mechanisms have yet to be defined. Results: Male C57BL/6J mice were fed with CR diet or ad libitum (AL) and exposed to PM for 4 weeks in a real-ambient PM exposure system located at Shijiazhuang, China, with a daily mean concentration (95.77 μg/m³) of PM 2.5. Compared to AL-fed mice, CR-fed mice attenuated PM-induced pulmonary injury and systemic toxicity characterized by reduction in oxidative stress, DNA damage and inflammation. Analysis of RNA sequencing revealed that several pulmonary pathways involved in production of ROS, cytokine production, and inflammatory cell activation were inactivated, while those mediating antioxidant generation and DNA repair were activated in CR-fed mice upon PM exposure. In addition, transcriptome analysis of murine livers revealed that CR led to induction of xenobiotic metabolism and detoxification pathways, corroborated by increased levels of urinary metabolites of polycyclic aromatic hydrocarbons (PAHs) and decreased cytotoxicity measured in an ex vivo assay. Conclusion: These novel results demonstrate, for the first time, that CR in mice confers resistance against pulmonary injuries and systemic toxicity induced by PM exposure. CR led to activation of xenobiotic metabolism and enhanced detoxification of PM-bound chemicals. These findings provide evidence that dietary intervention may afford therapeutic means to reduce the health risk associated with PM exposure. Keywords: Caloric restriction, particulate matter, pulmonary injury, systemic effects, RNA sequencing, xenobiotic metabolism.


2008 ◽  
Vol 129 (12) ◽  
pp. 722-727 ◽  
Author(s):  
Chiara Martini ◽  
Valentina Pallottini ◽  
Elisabetta De Marinis ◽  
Maria Marino ◽  
Gabriella Cavallini ◽  
...  

2020 ◽  
Author(s):  
Daochuan Li ◽  
Shen Chen ◽  
Qiong Li ◽  
Liping Chen ◽  
Haiyan Zhang ◽  
...  

Abstract Background: Caloric restriction (CR) is known to improve health and extend lifespan in human beings. The effects of CR on adverse health outcomes in response to particulate matter (PM) exposure and the underlying mechanisms have yet to be defined.Results: Male C57BL/6J mice were fed with a CR diet or ad libitum (AL) and exposed to PM for 4 weeks in a real-ambient PM exposure system located at Shijiazhuang, China, with a daily mean concentration (95.77 μg/m³) of PM2.5. Compared to AL-fed mice, CR-fed mice showed attenuated PM-induced pulmonary injury and extra-pulmonary toxicity characterized by reduction in oxidative stress, DNA damage and inflammation. RNA sequence analysis revealed that several pulmonary pathways that were involved in production of reactive oxygen species (ROS), cytokine production, and inflammatory cell activation were inactivated, while those mediating antioxidant generation and DNA repair were activated in CR-fed mice upon PM exposure. In addition, transcriptome analysis of murine livers revealed that CR led to induction of xenobiotic metabolism and detoxification pathways, corroborated by increased levels of urinary metabolites of polycyclic aromatic hydrocarbons (PAHs) and decreased cytotoxicity measured in an ex vivo assay.Conclusion: These novel results demonstrate, for the first time, that CR in mice confers resistance against pulmonary injuries and extra-pulmonary toxicity induced by PM exposure. CR led to activation of xenobiotic metabolism and enhanced detoxification of PM-bound chemicals. These findings provide evidence that dietary intervention may afford therapeutic means to reduce the health risk associated with PM exposure.


1970 ◽  
Vol 6 (1) ◽  
Author(s):  
Muskinul Fuad

The education system in Indonesia emphasize on academic intelligence, whichincludes only two or three aspects, more than on the other aspects of intelligence. For thatreason, many children who are not good at academic intelligence, but have good potentials inother aspects of intelligence, do not develop optimally. They are often considered and labeledas "stupid children" by the existing system. This phenomenon is on the contrary to the theoryof multiple intelligences proposed by Howard Gardner, who argues that intelligence is theability to solve various problems in life and produce products or services that are useful invarious aspects of life.Human intelligence is a combination of various general and specific abilities. Thistheory is different from the concept of IQ (intelligence quotient) that involves only languageskills, mathematical, and spatial logics. According to Gardner, there are nine aspects ofintelligence and its potential indicators to be developed by each child born without a braindefect. What Gardner suggested can be considered as a starting point to a perspective thatevery child has a unique individual intelligence. Parents have to treat and educate theirchildren proportionally and equitably. This treatment will lead to a pattern of education that isfriendly to the brain and to the plurality of children’s potential.More than the above points, the notion that multiple intelligences do not just comefrom the brain needs to be followed. Humans actually have different immaterial (spiritual)aspects that do not refer to brain functions. The belief in spiritual aspects and its potentialsmeans that human beings have various capacities and they differ from physical capacities.This is what needs to be addressed from the perspective of education today. The philosophyand perspective on education of the educators, education stakeholders, and especially parents,are the first major issue to be addressed. With this step, every educational activity andcommunication within the family is expected to develop every aspect of children'sintelligence, especially the spiritual intelligence.


2020 ◽  
Vol 11 (SPL1) ◽  
pp. 758-762
Author(s):  
Amit Biswas ◽  
KunalChandankhede

Wuhan originated Covid-19 disease is caused by SARC-COV 2 virus. It is a contagious disease it spread all over the world. World health organization declared a global pandemic disease. In Covid-19 immunity plays an important role. In old age people or having other co-morbid conditions the mortality rate is more. Ayurveda has a big role in improved immunity or to intact immunity. The principle of Ayurveda is to keep individual swastha (diseases free). To maintain individual disease-free Ritucharya is one of the important subjects of Ayurveda. Aimed of study is to find out Ritucharya literature from the Ayurveda and modern research specifically Varsha and Sharad ritu. Ritucharya contains dietary regimen, living modification, common medicine, and contraindicated things those changing according to environmental change. Upcoming season in India is Varsha and Sharad ritu. Environmental changes are huge in this season and it directly affected human beings. So this study reveals property of ritu, dietary regimen, living modification, common medicine and contraindicated things in upcoming varsha and sharad ritu.


2019 ◽  
Vol 21 (1) ◽  
pp. 21-25 ◽  

Emerging results support the concept that Alzheimer disease (AD) and age-related dementia are affected by the ability of the immune system to contain the brain's pathology. Accordingly, well-controlled boosting, rather than suppression of systemic immunity, has been suggested as a new approach to modify disease pathology without directly targeting any of the brain's disease hallmarks. Here, we provide a short review of the mechanisms orchestrating the cross-talk between the brain and the immune system. We then discuss how immune checkpoint blockade directed against the PD-1/PD-L1 pathways could be developed as an immunotherapeutic approach to combat this disease using a regimen that will address the needs to combat AD.


2019 ◽  
Vol 21 (1) ◽  
pp. 21-25 ◽  

Emerging results support the concept that Alzheimer disease (AD) and age-related dementia are affected by the ability of the immune system to contain the brain’s pathology. Accordingly, well-controlled boosting, rather than suppression of systemic immunity, has been suggested as a new approach to modify disease pathology without directly targeting any of the brain’s disease hallmarks. Here, we provide a short review of the mechanisms orchestrating the cross-talk between the brain and the immune system. We then discuss how immune checkpoint blockade directed against the PD-1/PD-L1 pathways could be developed as an immunotherapeutic approach to combat this disease using a regimen that will address the needs to combat AD.


2014 ◽  
Vol 62 (4) ◽  

A Fragility Fracture is nowadays looked upon to be the most important clinical symptom of osteoporosis. The sportive elderly have a limited risk to suffer from this event. Mechanical loading of the skeleton which is associated with most sporty activities prevents age related bone loss. Furthermore, if a fracture happens as a result from sporty activity, the criterion of a fragility fracture is usually not met. Elderly sportsmen who want to be reassured or who are going to restart activity after a break can be offered a fracture risk calculation by means of FRAX. Correct interpretation of the risk scores needs knowledge of the boundary conditions the algorithm is based on. In contrast a DEXA scan is rarely indicated in this situation. Vitamin D Supplementation can generally be adviced for every elderly person in our region, especially for the sportive ones. Sufficient intake of calcium and protein shall be achieved by a healthy diet. Despite of the risk of falling that is usually associated with any sportive activity it may be summarized, that there is less fractures in active people. As long as human beings stay mobile and active, pharmacological prevention or treatment of osteoporosis is rarely indicated. An exeption from this is osteoanabolic treatment of insufficiency and stress fractures. This shall be mentioned here even though it is an “off-label” use of the drugs.


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