sulforaphane Flashcards

1
Q

where is broccoli most abundant

A

broccoli sprouts

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2
Q

what is sulforaphane

A

a potent NQO1 inducer

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3
Q

what is sulforaphane isolated from

A

glucoraphanin via myosin

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4
Q

how does sulforaphane activate Nrf2

A

by reacting with cysteines (mainly C151) in Keap1

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5
Q

what effect does sulforaphane possess

A

cytoprotective and anti-inflammatory properties

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6
Q

increasing concentrations of sulforaphane protects against…

A

the toxicity of menadione (an oxidant)

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7
Q

what does activation of the Nrf2 pathway by sulforaphane protect against

A

streptozotocin-induced diabetic nephropathy

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8
Q

what does sulforaphane prevennt

A

diabetes-induced aortic damage
(shown using a diabetic mouse model - comparing WT to Nrf2 KO mice, KO have much more aortic DNA damage)

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9
Q

how does sulforaphane prevent diabetes-induced aortic damage

A

through the prevention of oxidative stress

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10
Q

what are the phenotypic corrections of diabetes-induced aortic damage projected by sulforaphane

A

thickening of the aorta is prevented,
much less DNA damage,
inflammation decreased

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11
Q

what does sulforaphane protect the brain against

A

hypoxic-ischemic injury

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12
Q

how does sulforaphane protect against hypoxic-ischemic injury

A

it reduced the number of damaged cells and protected neurons from apoptosis

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13
Q

what does sulforaphane decrease after spinal cord injury

A

inflammation and lesion volume

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14
Q

what happens to Nrf2 in cancer cells

A

it is upregulated

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15
Q

what inhibits growth of carcinogenesis in mice models

A

broccoli sprouts (a SFN source) and their isothiocyanates

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16
Q

what does sulforaphane need in order to provide protection

A

the presence of Nrf2

17
Q

what is the largest and most easily accessible organ

A

the skin

18
Q

damage by UV radiation is…

A

acceptable and objectively quantifiable

19
Q

what is skin erythema

A

a biomarker of skin damage, including inflammation and vasodilation

20
Q

what happens when sulforaphane levels become too high in humans

A

it can become toxic

21
Q

how would you help trrat erythema developments

A

sulforaphane dose ~400nmol max

22
Q

who are at a very high risk of skin cancer

A

transplant patients