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  • 名稱:微波固定系統(tǒng)

  • 型號(hào):Muromachi Microwave Fixation system TMW-4012C (10k
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簡(jiǎn)單介紹:
微波固定系統(tǒng),該設(shè)備能快速“固定”大腦化學(xué)物質(zhì),通過(guò)微波照射使大腦內(nèi)的酶等化學(xué)物質(zhì)維持不變,使得研究在活體條件下進(jìn)行。系統(tǒng)能**測(cè)量 cAMP, cGMP, GABA, Acetylcholine, choline, DOPA, 5HTP, endorphin, prostaglandins, and catecholines 以及它們的代謝物。 微波固定系統(tǒng)通過(guò)一個(gè)專門的發(fā)射器將產(chǎn)生的微波能量傳
詳情介紹:

微波固定系統(tǒng)

(實(shí)驗(yàn)動(dòng)物腦內(nèi)酵素瞬間滅活性系統(tǒng))
Muromachi Microwave Fixation system


 原理與特色:

1. 用微波加熱的方式使得神經(jīng)組織內(nèi)的酶(ENZYME)去活性,以避免死后變化
  (post-mortem changes)持續(xù)進(jìn)展。
2. 此法比用冷凍固定法要來(lái)得好:冷凍法需要10-90秒做深入冷凍去活性,這段
    期間,深部組織的死后變化(post-mortem changes)已經(jīng)在進(jìn)行,因腦表面
    的熱傳導(dǎo)轉(zhuǎn)差。微波法可在更短的時(shí)間內(nèi)完全去活性。
3. 可以測(cè):
               *  Acetylcholine乙酰膽堿
             
  * 
Choline 膽堿
               * 
Cyclic AMP 環(huán)腺苷酸
               * 
Cyclic GMP 環(huán)林鳥苷
               * 
GABA  伽馬氨基丁酸              
               * 
DOPA 多巴(二羥基苯丙氨酸)
               * 
5-HTP 5-羥色胺酸
               * 
Serotonin 血清素
               * 
Endorphin 內(nèi)啡肽
               * 
Prostaglandin 前列腺素
               *  
Catecholamines and their metabolites 兒茶酚胺及其代謝物
               *  Phosphorylated Proteins 磷酸化蛋白質(zhì)

微波固化可以達(dá)到下列標(biāo)準(zhǔn):

1. 可將溫度升至75-90攝氏度,使腦部快速固定。
2. 微波能量可有效集中在動(dòng)物的頭部。
3. 各種動(dòng)物間都可以達(dá)到相同的結(jié)果。
4. 對(duì)操作人員具備嚴(yán)格的保護(hù),此設(shè)備相當(dāng)簡(jiǎn)單**


規(guī)格
振蕩器 Toshiba Magnetron 2M68
微波輸出 5kW max.
震蕩頻率 2.450±30MHz
冷卻要求 水冷
水流量  每分鐘兩升
暴露時(shí)間 0.01-9.99秒 (0.01秒步進(jìn))
暫停時(shí)間 3 分鐘
能量功耗 9.7千瓦  
頻率 50 或者 60 Hz
電源要求 200/220VAC  40A  3Phase
外形尺寸 935W x 640D x 1,310H 厘米
重量 大約 220公斤

 






 

 

APPLICATOR HEAD

適用的動(dòng)物管

TAW-174A WJM-24 for Mouse 15-20g
WJM-28 for Mouse 20-40g
TAW-424SA WJR-S for Rat 150-250g
TAW-424M WJR-M for Rat 250-400g
WJR-L for Rat 400-500g





水套式動(dòng)物管(左側(cè)的是大鼠固定器,右側(cè)的是老鼠固定器)


標(biāo)準(zhǔn)系統(tǒng)包括:

Main Unit TMW-4012C 1
Applicator Head ( Any one from the list ) 1
Animal Holder ( Any one from the list ) 1
Dust Cover 1

發(fā)表文獻(xiàn):

Unambiguous assignment of the H3S and H3R deuterations of cerebral (2-13C) glutamate by 13C NMR at 18.8 tesla

TB Rodrigues, IR Violante, S … - Magnetic Resonance in …, 2010 - interscience.wiley.com
... At the end of the infusions, cerebral metabolism was arrested using a 5- kW microwave
fixation system, the brain being rapidly removed from the skull and immediately frozen in liquid N2. ...

Brain glutamine synthesis requires neuronal-born aspartate as amino donor for glial glutamate formation

B Pardo, TB Rodrigues, L Contreras, M … - Journal of Cerebral …, 2010 - nature.com
... regulated circulating water bath. Fifteen minutes after 13 C-label administration, the
metabolism was arrested using a high-power (5 kW) focused microwave fixation system
The brain was ...

Delayed Increase of Brain Noradrenaline After Acute Footshock Stress in Rats

T Shinba, N Ozawa, M Yoshii, K Yamamoto - Neurochemical research, 2010 - Springer
... 4.5–5 kW, 1.4 s) using a small animal microwave applicator...
Immediately after microwave radiation, the brains were harvested and put onto an ice-chilled
Petri dish ... Moroji T, Takahashi T, Ogura K, Toishi T, Arai S (1977) Rapid fixation of rat ...

Altered Affect, Monoamine Transmitters and Bioenergetic Homeostasis of Alpha-synuclein-transgenic Mice, in the Presence and Absence of Endogenous Alpha- EM Cumyn - 2010 - tspace.library.utoronto.ca
... 36 3.7 Open field test..... 37 3.8 Microwave fixation and dissection of brain tissue.....
37 3.9 Fresh dissection and flash-freezing of brain tissue..... 40 ...

Brainstem Concentrations of Cholesterol are not Influenced by Genetic Ablation of the Low-Density Lipoprotein Receptor

AY Taha, CT Chen, Z Liu, JH Kim, HTJ Mount, … - Neurochemical …, 2009 - Springer
... At 7 weeks of age, the mice were euthanized with a high-energy head-focused microwave
fixation system (6 kW, 0.88–0.99 s, Muromachi brain fixation system in order to stop brain lipid metabolism [14, 15]. ...

Detection of reduced GABA synthesis following inhibition of GABA transaminase using in vivo magnetic resonance signal of [13C] GABA C1

J Yang, C Johnson, J Shen - Journal of neuroscience methods, 2009 - Elsevier
... After in vivo MRS data acquisition of gabaculine-treated rats infused with [2,5- 13 C 2 ]glucose
and unlabeled glucose, the rats were euthanized using a microwave fixation device (Model
TNW-6402C, 5 kW, 1.5 s). Subsequently, the rat ...


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