gk119725's Xanga

Friday, December 18, 2009

Fri, 18 Dec 2009 10:16:50 GMT

F.7S!!!!!

sing con, x'mas party!

"任何情節今天多一種意義"

*to be edited~ keep~~

Wednesday, November 18, 2009

Wed, 18 Nov 2009 09:54:34 GMT

tug-of-war, 7S好勁啊~!!!!!!
真係好enjoy成班一齊叫"1~! 2~!"同埋"yeah!!!!! 7S!!!!!"的感覺~!! >3<
其實呢, 開始之前我地圍埋一齊叫"7S!!", 果種感覺好warm呢
今日天氣凍到似雪櫃, 我成朝都凍到不斷震... = ='''
起初驚晌操場會更加凍死, 點知睇比賽睇到好興奮XD
星期五繼續加油呀7S~!!!!!!!!

7S
要在farewell前一起建立更多屬於我們7S的美麗回憶

7S buddies想要tug-of-war video的話問我喇~~

Sunday, November 15, 2009

Sun, 15 Nov 2009 06:49:18 GMT

13/11/2009
中學最後一次picnic day
似乎gloria又錯過了很多片段了... =[
原本以為去赤柱, 我都大概imagine到是怎麼樣,
說到底f.5去過一次bbq...
睇完xanga sub, 原來最後轉去南灣......
我也忘記了有沒有到過那兒,
只知道腦袋多了一個missing link =[
本以為一早習慣去不到充滿沙的地方,
不過為甚麼突然間想一起到沙灘感受天人合一.......
還有糖水?

至於赤柱, 哈哈,
就讓那兒繼續盛載著美好的回憶吧 =]
芝士腸, 很美味 =]

tug-of-war, 7S add oil~!!!!! >3<
-------------------------------------------------------
想早些排好jupas, 這樣我先可以專心溫習... =[
臨交表前的一星期, 突然間將之前一路以來的決定都改變了...........
究竟我想做甚麼呢? 是不是過份高估了自己?......

哈哈, 收到篇thanksgiving message, 謝謝=]
不過我沒有msg中講的這樣好 XD

想起未來一星期連續幾個tests, 中化hw就想叫救命................................. =[
幾時先到cytokinesis? =_='''

Friday, September 04, 2009

Fri, 04 Sep 2009 06:21:15 GMT

真係好鐘意phy堂聽hui sir講野啊~!!
終於等到期待已久的triple phy
F.7開學第4日, 今日是最happy XDDDDD
最好可以用recorder錄低phy堂許sir講ge野, 哈哈XD

其實今日早上的double bio都十分enjoyable,
第一次真正感受到neuroscience的奇妙可愛之處XD
很喜歡這種上課氣氛

btw, 我發覺原來目標要轉移到neuroscience,
因為muscular atrophy其中一個key factor就是與survival motor neuron1(SMN)有關...!!

Tuesday, July 21, 2009

Tue, 21 Jul 2009 13:35:59 GMT

Congratulations!!!!!!
------------------------------------------------

去年今日, CUHK Summer Institute 2008 Day 1
好掛住SI08, 好掛住5堂MBT的日子,
掛住一班很好的cosmopolitanians

Wednesday, July 08, 2009

Wed, 08 Jul 2009 13:36:36 GMT

謝謝那次你給我一個"暖包"...

Gathering @ 3thJuly09

Fri, 03 Jul 2009 16:45:49 GMT

Gathering with Winnie, Sandy, Wing, Samantha, Leo, Alex
好開心又有gathering~!!!!!!!
去"源興"食完飯, 跟住過去元洲村個公園傾計,
最後本來去松記食糖水, 不過結果去了M記~~~
第一次同朋友夜晚去公園傾計, 好開心
雖然不斷有很多人行過, 但我們都是照樣很興奮地拍照XDDDDD
"飄逸的頭髮"XDDDDD

真的很喜歡很享受和你們一起的時光, my dear friends
哈哈, 相片在facebook^^
sandy, 我們很快就可以常常見面啦XD
好期待下次gathering呀~!!!!!!!
其實我日日都好掛住你們的
今晚很開心呀>333<

Muscle Stem Cell

Sat, 27 Jun 2009 14:53:43 GMT

Stem Cell Surprise For Tissue Regeneration

(Source: ScienceDaily. Retrieved June 27, 2009, from http://www.sciencedaily.com/releases/2009/06/090625085340.htm)

ScienceDaily (June 25, 2009) — Scientists working at the Carnegie Institution's Department of Embryology, with colleagues, have overturned previous research that identified critical genes for making muscle stem cells. It turns out that the genes that make muscle stem cells in the embryo are surprisingly not needed in adult muscle stem cells to regenerate muscles after injury. The finding challenges the current course of research into muscular dystrophy, muscle injury, and regenerative medicine, which uses stem cells for healing tissues, and it favours using age-matched stem cells for therapy.

The study is published in the June 25 advance online edition of Nature.

Previous studies have shown that two genes Pax3 and Pax7, are essential for making the embryonic and neonatal muscle stem cells in the mouse. Lead researcher Christoph Lepper, a predoctoral fellow in Carnegie's Chen-Ming Fan's lab and a Johns Hopkins student, for the first time looked at these two genes in promoting stem cells at varying stages of muscle growth in live mice after birth.

As Christoph explained: "The paired-box genes, Pax3 and Pax7 are involved in the development of the skeletal muscles. It is well established that both genes are needed to produce muscle stem cells in the embryo. A previous student, Alice Chen, studied how these genes are turned on in embryonic muscle stem cells (also published in Nature). I thought that if they are so important in the embryo, they must be important for adult muscle stem cells. Using genetic tricks, I was able to suppress both genes in the adult muscle stem cells. I was totally surprised to find that the muscle stem cells are normal without them."

The researchers then looked at whether the same was true upon injury, after which the repair process requires muscle stem cells to make new muscles. For this, they injured the leg muscles between the knee and ankle. They were again surprised that these muscle stem cells, without the two key embryonic muscle stem cell genes, could generate muscles as well as normal muscle stem cells. They even performed a second round of injury and found that the stem cells were still active.

The scientists then wondered when these genes become unnecessary for muscle stem cells to regenerate muscles. It turned out that these embryonic genes are important to muscle stem cell creation up to the first three weeks after birth. What makes the muscle stem cells different after three weeks? The scientist believe that these two embryonic muscle stem cell genes also tell the stem cells to become quiet as the organism matures. After that time is reached, they "hand over" their jobs to a different set of genes. The researchers suggest that since the adult muscle stem cells are only activated when injury occurs (by trauma or exercise), they use a new set of genes from those used during embryonic development, which proceeds without injury. The scientists are eager to find these adult muscle stem cell genes.

"We are just beginning to learn the basics of stem cell biology, and there are many surprises," remarked Allan Spradling, director of Carnegie's Department of Embryology. "This work illustrates the importance of carrying out basic research using animal models before rushing into the clinic with half-baked therapies."

The research was funded by the Carnegie Institution, NIH, and the Riley Children's Foundation.

http://www.sciencedaily.com/releases/2009/06/090604124025.htm
http://www.sciencedaily.com/releases/2009/03/090305121655.htm
http://www.sciencedaily.com/releases/2008/04/080430081258.htm

Friday, June 26, 2009

Fri, 26 Jun 2009 11:07:04 GMT

難道就這樣回不到我們最快樂時候...

I do hope that you still remember the giant covalent network...

Sunday, May 10, 2009

Sun, 10 May 2009 14:59:25 GMT

keep