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striatum
مُخَطَّط
Ultimo aggiornamento 1970-01-01
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Attenzione: Questo allineamento potrebbe essere errato.
Eliminalo se ritieni che sia così.
corpus striatum
الجِسْمُ المُخَطَّط
Ultimo aggiornamento 1970-01-01
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Attenzione: Questo allineamento potrebbe essere errato.
Eliminalo se ritieni che sia così.
live striatum hippeastrum
هيبياستروم الإستراتيوم الحى
Ultimo aggiornamento 2018-07-23
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corpus striatum rudiment
رَديمُ الجِسْمِ المُخَطَّط
Ultimo aggiornamento 1970-01-01
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Attenzione: Questo allineamento potrebbe essere errato.
Eliminalo se ritieni che sia così.
dried cut striatum hippeastrum
هيبياستروم سترايتم قطع مجففة
Ultimo aggiornamento 2018-07-23
Frequenza di utilizzo: 1
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moderate growth of corynebacterium striatum
نمو معتدل لجراثيم الوتدية المخططة
Ultimo aggiornamento 2021-01-04
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Attenzione: Questo allineamento potrebbe essere errato.
Eliminalo se ritieni che sia così.
lateral medullary stria of corpus striatum
السَّطْرُ النُّخاعِيُّ الوَحْشِيُّ للجِسْمِ المُخَطَّط
Ultimo aggiornamento 1970-01-01
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Attenzione: Questo allineamento potrebbe essere errato.
Eliminalo se ritieni che sia così.
but why the five-ht efflux in the striatum?
ولِمَ يتدفق "5-إتش تي" في السترايتوم؟
Ultimo aggiornamento 2016-10-27
Frequenza di utilizzo: 2
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Attenzione: contiene formattazione HTML nascosta
ace2 mrna expression is also found in the cerebral cortex, striatum, hypothalamus, and brainstem.
الحمض النووي الريبوزي المرسال الخاص بالإنزيم المحول للأنجيوتنسين 2 موجود في القشرة الدماغية، والمخطط، ومنطقة تحت المهاد، وجذع الدماغ.
Ultimo aggiornamento 2020-08-25
Frequenza di utilizzo: 1
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if you do brain scans of the striatum during game play, you start to realize the mesolimbic dopamine system is involved with the reward metric...
لو قمنا بتصوير عصبي دماغي, خلال لعب المباراة, فسنبدأ ندرك أن النظام العصبي الدوباميني يؤثر في المقياس التحفيزي
Ultimo aggiornamento 2016-10-27
Frequenza di utilizzo: 2
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the ventral striatum is part of the reward pathway, so this research suggests that there may be areas of the reward system that are activated specifically when cooperating in social situations.
يعتبرالجسم المخطط البطيني جزء من سبيل المثوبة ، لذلك يقترح هذا البحث أنه قد يكون هناك مناطق من نظام المكافأة يتم تفعيلها بشكل محدد عند التعاون في المواقف الاجتماعية .
Ultimo aggiornamento 2016-03-03
Frequenza di utilizzo: 1
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in a murine model of je, it was found that in the hippocampus and the striatum, the number of activated microglia was more than anywhere else in the brain closely followed by that in the thalamus.
في نموذج الفئران من التهاب الدماغ الياباني، ووجد أن في قرن آمون والمخطط، وعدد الخلايا الدبقية الصغيرة تنشيط كان أكثر من أي مكان آخر في الدماغ التي تليها في المهاد.
Ultimo aggiornamento 2016-03-03
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the locus of the monoamine action of modafinil has also been the target of studies, identifying effects on dopamine in the striatum and nucleus accumbens, norepinephrine in the hypothalamus and ventrolateral preoptic nucleus, and serotonin in the amygdala and frontal cortex.
وهذا يعنى أن التأثير المنوأمينى للمودافينيل كان أيضا هدفا للدراسات, تحديد الآثار المترتبة على الدوبامين في المخطط striatum و nucleus accumbens , نورأدرينالين في هيبوثالامس و ventrolateral preoptic nucleus النواة قبل البصرية الجبهية الجانبية , و السيروتينين في اللوزة والقشرة الأمامية.
Ultimo aggiornamento 2016-03-03
Frequenza di utilizzo: 1
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2 hedonic response to sugar and rewards of sugar intake while the hypothalamus regulates food intake in terms of energetic needs, the dopamine reward/motivation circuitry involving striatal, limbic and cortical areas also drives eating behavior (28). other neurotransmitters including serotonin, endogenous opioids, and endocannabinoids confer the rewarding effects of food in part by modulating its hedonic properties (29). ingestion of palatable food releases dopamine (da) in the ventral and dorsal striatum and dorsal striatal da release is proportional to the self- reported level of pleasure gained by eating the food (30). highly palatable foods, namely those rich in sugar or fat, can strongly trigger these reward/motivation and hedonic systems, encouraging food intake beyond the necessary energy requirements (31). while this may have been evolutionarily advantageous by encouraging fat storage when food was scarce, overeating becomes a liability in our current environment, which has no shortage of highly caloric and processed foods. there are two principal rewarding aspects of sugar consumption: nutrition and taste. rodent studies have indicated that these two aspects are distinct and dissociable and may follow different neural pathways (32,33). one path for the nutritive rewards of sugar comes from melanin-concentrating hormone (mch) neurons in the lateral hypothalamus (32). in rodents, these neurons fire in response to extracellular glucose levels, independent of gustatory input, and project to dopamine neurons in the midbrain that in turn project to the ventral and dorsal striatum. though animals typically prefer sucrose over sucralose (non-nutritive sweetener), transgenic mice who lack mch neurons do not, showing that this pathway is essential for encoding nutritive reward. when mch neurons are optogenetically stimulated during the consumption of sucralose, the mouse brain is tricked into responding as if it is receiving caloric energy with a resultant increase in striatal da and even preference of sucralose over sucrose (32). the nutritive reward value of sugar is associated with increases in da release in the dorsal striatum (34). when infused intra-gastrically in mice to avoid the confounds of taste, glucose elicited da release in the dorsal striatum while sucralose did not (34). the sweet taste of sugar is also rewarding— offering an explanation as to why artificial sugars like sucralose are still consumed despite their lack of nutritive value. the reward of the sweet taste, however, activates a different neural pathway than the caloric input. while the nutritive reward of sugar in mice causes da release primarily in the dorsal striatum, the sweetness reward is concentrated in the ventral striatum (32). consumption of sucralose in mice was associated with increased da in the ventral striatum except when tainted by a bitter additive, suggesting that the reward is derived from the palatable taste rather than another feature of sucralose (34). although both the nutritive and taste rewards of sugar are, to some extent, neurologically distinct, they occur in tandem and are interrelated. a recent study showed that mice modified to have disrupted da d-2 receptor (drd2) signaling in the nucleus accumbens (nac) shell of the ventral striatum exhibited more perseverative and impulsive sucrose-taking, increased sucrose reinforcement, increased reinforcement/ reward learning of glucose-paired flavors, and worsened learning flexibility (35). additionally, these mice were less efficient in metabolizing glucose. this suggests that drd2 in the nac are essential both for regulating peripheral glucose levels as well as the reinforcement/reward learning of glucose consumption (35), which explains why dysregulation of this system may lead to overeating. 3.3 hedonic response: fructose vs. glucose just as fructose and glucose have different metabolic pathways, they have different hedonic effects on the brain and behavior. fifteen minutes after subjects received a drink of either pure fructose or glucose during a functional mri (fmri) scan, those receiving glucose showed a significantly reduced amount of cerebral blood flow (cbf) in the hypothalamus, insula, anterior cingulate cortex, and striatum when compared to baseline (17). they also showed greater functional connectivity between the hypothalamus, thalamus, caudate, and putamen. the increased connectivity between the hypothalamus and the dorsal striatum after glucose was interpreted to reflect engagement of the nutritive reward pathway. the reduction in hypothalamic activity and increased connectivity with reward centers was accompanied by a perceived increase in fullness and satiety. in contrast, consuming a fructose drink was not associated with reduced cbf in the hypothalamus, but instead with reduced cbf in the thalamus, hippocampus, posterior cingulate cortex, fusiform gyrus, and visual cortex. although those in the fructose group did have increased connectivity between the thalamus and hypothalamus, there was no increase detected with the dorsal striatum as observed in the glucose group. correspondingly, fructose consumption did not significantly reduce hunger. fructose consumption has also been associated with a stronger fmri response in the visual cortex to high calorie foods compared that with glucose consumption (14). as fructose delivers a sweet taste without an immediate nutritive input, it follows that fructose consumption should be associated with increased appetitive behavior and reactivity to food. 3.4 sugar and addiction sugar has been
Ultimo aggiornamento 2021-04-21
Frequenza di utilizzo: 1
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