scholarly journals Long-Term Diet Supplementation with Lactobacillus paracasei K71 Prevents Age-Related Cognitive Decline in Senescence-Accelerated Mouse Prone 8

Nutrients ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 762 ◽  
Author(s):  
Henry Corpuz ◽  
Saki Ichikawa ◽  
Misa Arimura ◽  
Toshihiro Mihara ◽  
Takehisa Kumagai ◽  
...  
Keyword(s):  
Cognitive Decline ◽  
Lactobacillus Paracasei ◽  
Age Related ◽  
Age Related Cognitive Decline ◽  
Senescence Accelerated Mouse ◽  
Diet Supplementation

scholarly journals Lactobacillus paracasei PS23 Delays Progression of Age-Related Cognitive Decline in Senescence Accelerated Mouse Prone 8 (SAMP8) Mice

Nutrients ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 894 ◽  
Author(s):  
Shih-Yi Huang ◽  
Li-Han Chen ◽  
Ming-Fu Wang ◽  
Chih-Chieh Hsu ◽  
Ching-Hung Chan ◽  
...  
Keyword(s):  
Cognitive Decline ◽  
Brain Dysfunction ◽  
Lactobacillus Paracasei ◽  
Oxidative Enzymes ◽  
Control Group ◽  
Age Related ◽  
Chemotactic Protein ◽  
Age Related Cognitive Decline ◽  
Samp8 Mice ◽  
Senescence Accelerated Mouse

Probiotic supplements are potential therapeutic agents for age-related disorders due to their antioxidant and anti-inflammatory properties. However, the effect of probiotics on age-related brain dysfunction remains unclear. To investigate the effects of Lactobacillus paracasei PS23 (LPPS23) on the progression of age-related cognitive decline, male and female senescence-accelerated mouse prone 8 (SAMP8) mice were divided into two groups (n = 6 each): the control and PS23 groups. From the age of 16 weeks, these groups were given saline and LPPS23, respectively, because SAMP8 mice start aging rapidly after four months of age. After 12 weeks of treatment, we evaluated the effect of LPPS23 by analyzing their appearance, behavior, neural monoamines, anti-oxidative enzymes, and inflammatory cytokines. The PS23 group showed lower scores of senescence and less serious anxiety-like behaviors and memory impairment compared to the control group. The control mice also showed lower levels of neural monoamines in the striatum, hippocampus, and serum. Moreover, LPPS23 induced the anti-oxidative enzymes superoxide dismutase (SOD) and glutathione peroxidase (GPx). Higher levels of tumor necrosis factor (TNF)-α and monocyte chemotactic protein-1 (MCP1) and lower levels of interleukin (IL)-10 indicated that LPPS23 modulated the inflammation. Our results suggest that LPPS23 supplements could delay age-related cognitive decline, possibly by preventing oxidation and inflammation and modulating gut–brain axis communication.

scholarly journals Beneficial effects of multisensory and cognitive stimulation on age-related cognitive decline in long-term-care institutions

2014 ◽  
pp. 309 ◽  
Author(s):  
Cristovam Picanço-Diniz ◽  
Thais Cristina Galdino De Oliveira ◽  
Fernanda Cabral Soares ◽  
Liliane Dias E Dias De Macedo ◽  
Domingos Luiz Wanderley Picanco Diniz ◽  
...  
Keyword(s):  
Cognitive Decline ◽  
Long Term Care ◽  
Cognitive Stimulation ◽  
Term Care ◽  
Beneficial Effects ◽  
Age Related ◽  
Age Related Cognitive Decline

scholarly journals Early sirtuin 2 inhibition prevents age-related cognitive decline in a senescence-accelerated mouse model

2019 ◽  
Vol 45 (2) ◽  
pp. 347-357 ◽  
Author(s):  
Teresa Diaz-Perdigon ◽  
Francisco B. Belloch ◽  
Ana Ricobaraza ◽  
Elghareeb E. Elboray ◽  
Takayoshi Suzuki ◽  
...  
Keyword(s):  
Mouse Model ◽  
Cognitive Decline ◽  
Age Related ◽  
Age Related Cognitive Decline ◽  
Senescence Accelerated Mouse

Protective Role of Recent and Past Long-Term Physical Activity on Age-Related Cognitive Decline: The Moderating Effect of Sex

2018 ◽  
Vol 26 (3) ◽  
pp. 353-362 ◽  
Author(s):  
Iréné Lopez-Fontana ◽  
Carole Castanier ◽  
Christine Le Scanff ◽  
Alexandra Perrot
Keyword(s):  
Physical Activity ◽  
Cognitive Decline ◽  
Cognitive Aging ◽  
Moderating Effect ◽  
Age Related ◽  
Age Related Cognitive Decline ◽  
The Impact ◽  
Activity Questionnaire

This study aimed to investigate if the impact of both recent and long-term physical activity on age-related cognitive decline would be modified by sex. One-hundred thirty-five men (N = 67) and women (N = 68) aged 18 to 80 years completed the Modifiable Activity Questionnaire and the Historical Leisure Activity Questionnaire. A composite score of cognitive functions was computed from five experimental tasks. Hierarchical regression analyses performed to test the moderating effect of recent physical activity on age-cognition relationship had not revealed significant result regardless of sex. Conversely, past long-term physical activity was found to slow down the age-related cognitive decline among women (β = 0.22,p = .03), but not men. The findings support a lifecourse approach in identifying determinants of cognitive aging and the importance of taking into account the moderating role of sex. This article presented potential explanations for these moderators and future avenues to explore.

Regulation of synaptic plasticity by hippocampus synthesized estradiol

2011 ◽  
Vol 7 (2) ◽  
Author(s):  
Anna M. Barron ◽  
Yasushi Hojo ◽  
Hideo Mukai ◽  
Shimpei Higo ◽  
Yuuki Ooishi ◽  
...  
Keyword(s):  
Synaptic Plasticity ◽  
Cognitive Decline ◽  
Estrogen Receptors ◽  
Hippocampal Neurons ◽  
Long Term Potentiation ◽  
Adult Rats ◽  
Age Related ◽  
Estradiol Synthesis ◽  
Age Related Cognitive Decline

AbstractEstradiol is synthesized from cholesterol in hippocampal neurons of adult rats by cytochrome P450 and hydroxysteroid dehydrogenase enzymes. These enzymes are expressed in the glutamatergic neurons of the hippocampus. Surprisingly, the concentration of estradiol and androgen in the hippocampus is significantly higher than that in circulation. Locally synthesized estradiol rapidly and potently modulates synaptic plasticity within the hippocampus. E2 rapidly potentiates long-term depression and induces spinogenesis through synaptic estrogen receptors and kinases. The rapid effects of estradiol are followed by slow genomic effects mediated by both estrogen receptors located at the synapse and nucleus, modulating long-term potentiation and promoting the formation of new functional synaptic contacts. Age-related changes in hippocampally derived estradiol synthesis and distribution of estrogen receptors may alter synaptic plasticity, and could potentially contribute to age-related cognitive decline. Understanding factors which regulate hippocampal estradiol synthesis could lead to the identification of alternatives to conventional hormone therapy to protect against age-related cognitive decline.

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