ELIZA

return kwic search for growth out of >500 occurrences
309169 occurrences (No.70 in the rank) during 5 years in the PubMed. [cache]

299) The age-related reduction in circulating levels of insulin-like growth factor-1 (IGF-1) is associated with increased risk of stroke and neurodegenerative diseases in advanced age.

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PMID:34887742 DOI:10.3389/fnagi.2021.751304

2021 Frontiers in aging neuroscience

* Insulin-Like Growth Factor-1 Differentially Modulates Glutamate-Induced Toxicity and Stress in Cells of the Neurogliovascular Unit.

- The age-related reduction in circulating levels of insulin-like growth factor-1 (IGF-1) is associated with increased risk of stroke and neurodegenerative diseases in advanced age. Numerous reports highlight behavioral and physiological deficits in blood-brain barrier function and neurovascular communication when IGF-1 levels are low. Administration of exogenous IGF-1 reduces the extent of tissue damage and sensorimotor deficits in animal models of ischemic stroke, highlighting the critical role of IGF-1 as a regulator of neurovascular health. The beneficial effects of IGF-1 in the nervous system are often attributed to direct actions on neurons; however, glial cells and the cerebrovasculature are also modulated by IGF-1, and systemic reductions in circulating IGF-1 likely influence the viability and function of the entire neuro-glio-vascular unit. We recently observed that reduced IGF-1 led to impaired glutamate handling in astrocytes. Considering glutamate excitotoxicity is one of the main drivers of neurodegeneration following ischemic stroke, the age-related loss of IGF-1 may also compromise neural function indirectly by altering the function of supporting glia and vasculature. In this study, we assess and compare the effects of IGF-1 signaling on glutamate-induced toxicity and reactive oxygen species (ROS)-produced oxidative stress in primary neuron, astrocyte, and brain microvascular endothelial cell cultures. Our findings verify that neurons are highly susceptible to excitotoxicity, in comparison to astrocytes or endothelial cells, and that a prolonged reduction in IGFR activation increases the extent of toxicity. Moreover, prolonged IGFR inhibition increased the susceptibility of astrocytes to glutamate-induced toxicity and lessened their ability to protect neurons from excitotoxicity. Thus, IGF-1 promotes neuronal survival by acting directly on neurons and indirectly on astrocytes. Despite increased resistance to excitotoxic death, both astrocytes and cerebrovascular endothelial cells exhibit acute increases in glutamate-induced ROS production and mitochondrial dysfunction when IGFR is inhibited at the time of glutamate stimulation. Together these data highlight that each cell type within the neuro-glio-vascular unit differentially responds to stress when IGF-1 signaling was impaired. Therefore, the reductions in circulating IGF-1 observed in advanced age are likely detrimental to the health and function of the entire neuro-glio-vascular unit.

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[frequency of next (right) word to growth]

(1)85 and	(12)4 performance	(25)2 as	(36)2 hormone
(2)71 factor	(13)4 phase	(26)2 compared	(37)2 lean
(3)51 of	(14)4 rate	(27)2 conditions	(38)2 on
(4)33 in	(15)4 restriction	(28)2 curve	(39)2 response
(5)26 null	(16)3 factor,	(29)2 curves	(40)2 stage
(6)12 inhibition	(19)3 failure	(30)2 defect	(41)2 the
(7)8 factors	(20)3 is	(31)2 during	(42)2 we
(8)7 plate	(21)3 rates,	(32)2 environmental	(43)2 were
(9)5 by	(22)3 was	(33)2 factor-beta
(10)4 factor-1	(23)3 will	(34)2 for
(11)4 mindset	(24)2 are	(35)2 functions

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--- WordNet output for growth --- =>茂み, 成長, 増加, 発展, 栽培, 腫よう, 成長物 Overview of noun growth The noun growth has 7 senses (first 5 from tagged texts) 1. (37) growth, growing, maturation, development, ontogeny, ontogenesis -- ((biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level; "he proposed an indicator of osseous development in children") 2. (20) growth -- (a progression from simpler to more complex forms; "the growth of culture") 3. (3) increase, increment, growth -- (a process of becoming larger or longer or more numerous or more important; "the increase in unemployment"; "the growth of population") 4. (3) growth -- (vegetation that has grown; "a growth of trees"; "the only growth was some salt grass") 5. (1) emergence, outgrowth, growth -- (the gradual beginning or coming forth; "figurines presage the emergence of sculpture in Greece") 6. growth -- ((pathology) an abnormal proliferation of tissue (as in a tumor)) 7. growth -- (something grown or growing; "a growth of hair") --- WordNet end ---