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Adult Neurogenesis

This is a discussion on Adult Neurogenesis within the Health forums, part of the Info Zone category; Adult Neurogenesis: Exploring the functions of new neurons The turning point in neuroscience research has been the discovery that new ...


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Old 17-09-2005, 06:41 PM   #1 (permalink)
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Smile Adult Neurogenesis

Adult Neurogenesis: Exploring the functions of new neurons
The turning point in neuroscience research has been the discovery that new neurons continue to be born in the adult mammalian brain throughout life. Recent studies have shown that this pool of neurons of newly generated neurons from the stem/precursor
cells are present in discreet and specific areas of the adult brain, namely the
Subventricular zone (SVZ) lining the lateral walls of the lateral ventricles and the subgranular zone within the dentate gyrus of the hippocampus. Adult neurogenesis has been shown to occur in a wide variety of mammalian species including humans.
The process of neurogenesis entails the proliferation of progenitors within their neurogenic niche, their survival, migration and eventual mature phenotypic fate choice. Several studies have been aimed at understanding these steps in the formation of new neurons. The focus of field has been to elucidate the molecular and cellular factors regulating the transition of these precursors into functional neurons, involving several key steps like their survival, migration and integration into existing neuronal circuitry. Several studies have demonstrated that the process of neurogenesis can be regulated by a wide variety of factors like hormones, external environment, exercise, stressful experiences as well as antidepressant treatments. In addition these neurons have also been shown to be recruited to damaged areas in the brain in response to injury. Although there have been considerable advances in the regulation of this process, However, little progress has been made towards understanding the relevance of new neurons in adult brain functioning and its implications on behaviour.

The presence of adult neurogenesis has been established and several studies have examined its regulation by a range of varied factors however, the functional significance of these adult generated neurons is not well understood. Recent reports have indicated that these neurons can integrate within the existing neuronal circuitry and can send out functional projections. These neurons have also been suggested to play a role in the process of learning and memory.

I propose to study the process of adult neurogenesis and the role of newly generated neurons in regulating normal behaviour. I will use rodents as model organisms to study the process of adult neurogenesis and make use of several behavioural paradigms to assess the function of these newly born neurons.

Cells generated within the SVZ of the lateral ventricles in a rodent, migrate along the rostral migratory stream to the olfactory bulb where they differentiate into olfactory bulb interneurons. In order to examine the role of these newborn neurons arising from the SVZ, I will focus on the olfactory conditioning paradigm.

Newly born cells within the subgranular zone of the dentate gyrus, migrate a short distance into the granule cell layer of the dentate gyrus and integrate within the hippocampal circuitry. Given the role of the hippocampus in learning and memory, I will make use of hippocampal dependent tasks, such as the Morris water maze task (to assess spatial learning), the auditory fear conditioning paradigm etc to understand the role of new neurons within the SGZ of the dentate gyrus.

Furthermore, I plan to use the genetically modified mice wherein newly born neurons are labelled with a fluorescent marker protein and that expressing diphtheria toxin receptor which are currently being generated at the Queensland Brain Institute (QBI). Such mice will provide me with an excellent tool not only to ablate specific populations of new neurons within the brain but to do so in a temporally defined fashion as well. These studies along with the various behavioural paradigms will provide insight to the functions of newly generated neurons within an existing neuronal network of the adult brain.

Prof. Perry Bartlett and The Queensland Brain Institute harbours intellectual and technical expertise that will be invaluable towards my doctoral research and would give me an opportunity to contribute to this exciting field of neurogenesis.


Thanks
B4u
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Old 19-09-2005, 11:04 PM   #2 (permalink)
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Re: Adult Neurogenesis

paaleh nahi peya kuch but wadia hoyega B4u u hv impressed me a lot....
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Old 19-09-2005, 11:09 PM   #3 (permalink)
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Re: Adult Neurogenesis

bhaweein copy paste kita magar informational hai..... gud hunk i've not read it full but read it definately
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Old 19-09-2005, 11:31 PM   #4 (permalink)
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Lightbulb Re: Adult Neurogenesis

Joker dekh yeh copt-paste nahi maarah hua yeh main apni book seh leh kar type kiya hai... or vaiseh bhi agar copy-paste maara hoga toh bhi toh mein devotion ki hai time ki site seh search maarne ki... Kuch toh dimag use kar liya kar...>>>

Tu bhi rahega Jamurah hi

Apne Dimag ki baati jaga aur dekh kya seh kya hota hai day by day
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Old 20-09-2005, 08:30 AM   #5 (permalink)
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Re: Adult Neurogenesis

damn guys tusi taann badi upper lavel diyan gallan kardey a..mere palle ta kuch nahi piya ..anys ways kise de palle ta pauga i ..

Originally Posted by b4u_hunk
Adult Neurogenesis: Exploring the functions of new neurons


The turning point in neuroscience research has been the discovery that new neurons continue to be born in the adult mammalian brain throughout life. Recent studies have shown that this pool of neurons of newly generated neurons from the stem/precursor
cells are present in discreet and specific areas of the adult brain, namely the
Subventricular zone (SVZ) lining the lateral walls of the lateral ventricles and the subgranular zone within the dentate gyrus of the hippocampus. Adult neurogenesis has been shown to occur in a wide variety of mammalian species including humans.


The process of neurogenesis entails the proliferation of progenitors within their neurogenic niche, their survival, migration and eventual mature phenotypic fate choice. Several studies have been aimed at understanding these steps in the formation of new neurons. The focus of field has been to elucidate the molecular and cellular factors regulating the transition of these precursors into functional neurons, involving several key steps like their survival, migration and integration into existing neuronal circuitry. Several studies have demonstrated that the process of neurogenesis can be regulated by a wide variety of factors like hormones, external environment, exercise, stressful experiences as well as antidepressant treatments. In addition these neurons have also been shown to be recruited to damaged areas in the brain in response to injury. Although there have been considerable advances in the regulation of this process, However, little progress has been made towards understanding the relevance of new neurons in adult brain functioning and its implications on behaviour.

The presence of adult neurogenesis has been established and several studies have examined its regulation by a range of varied factors however, the functional significance of these adult generated neurons is not well understood. Recent reports have indicated that these neurons can integrate within the existing neuronal circuitry and can send out functional projections. These neurons have also been suggested to play a role in the process of learning and memory.

I propose to study the process of adult neurogenesis and the role of newly generated neurons in regulating normal behaviour. I will use rodents as model organisms to study the process of adult neurogenesis and make use of several behavioural paradigms to assess the function of these newly born neurons.

Cells generated within the SVZ of the lateral ventricles in a rodent, migrate along the rostral migratory stream to the olfactory bulb where they differentiate into olfactory bulb interneurons. In order to examine the role of these newborn neurons arising from the SVZ, I will focus on the olfactory conditioning paradigm.

Newly born cells within the subgranular zone of the dentate gyrus, migrate a short distance into the granule cell layer of the dentate gyrus and integrate within the hippocampal circuitry. Given the role of the hippocampus in learning and memory, I will make use of hippocampal dependent tasks, such as the Morris water maze task (to assess spatial learning), the auditory fear conditioning paradigm etc to understand the role of new neurons within the SGZ of the dentate gyrus.

Furthermore, I plan to use the genetically modified mice wherein newly born neurons are labelled with a fluorescent marker protein and that expressing diphtheria toxin receptor which are currently being generated at the Queensland Brain Institute (QBI). Such mice will provide me with an excellent tool not only to ablate specific populations of new neurons within the brain but to do so in a temporally defined fashion as well. These studies along with the various behavioural paradigms will provide insight to the functions of newly generated neurons within an existing neuronal network of the adult brain.

Prof. Perry Bartlett and The Queensland Brain Institute harbours intellectual and technical expertise that will be invaluable towards my doctoral research and would give me an opportunity to contribute to this exciting field of neurogenesis.


Thanks
B4u
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Old 20-09-2005, 02:14 PM   #6 (permalink)
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Re: Adult Neurogenesis

Originally Posted by b4u_hunk
Joker dekh yeh copt-paste nahi maarah hua yeh main apni book seh leh kar type kiya hai... or vaiseh bhi agar copy-paste maara hoga toh bhi toh mein devotion ki hai time ki site seh search maarne ki... Kuch toh dimag use kar liya kar...>>>

Tu bhi rahega Jamurah hi

Apne Dimag ki baati jaga aur dekh kya seh kya hota hai day by day
oooo khote tenu padhna ni aaunda mai keha c bhaweeeinnnnn... copy paste howe. .... tenu aap nu kuch samajh taan aaundi nii .
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Old 20-09-2005, 07:55 PM   #7 (permalink)
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Smile Re: Adult Neurogenesis

Originally Posted by thejoker
oooo khote tenu padhna ni aaunda mai keha c bhaweeeinnnnn... copy paste howe. .... tenu aap nu kuch samajh taan aaundi nii .
Gal oh Nahi hai... (bhaweeeinnnnn... copy paste howe), mareya hoveh chaheh search kita hoveh gal taan ek nahi hai... Nah tu vi rehega taan JAmurah hi LOL


ThanKs
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Old 20-01-2006, 11:34 AM   #8 (permalink)
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Re: Adult Neurogenesis

Originally Posted by b4u_hunk
Adult Neurogenesis: Exploring the functions of new neurons


The turning point in neuroscience research has been the discovery that new neurons continue to be born in the adult mammalian brain throughout life. Recent studies have shown that this pool of neurons of newly generated neurons from the stem/precursor
cells are present in discreet and specific areas of the adult brain, namely the
Subventricular zone (SVZ) lining the lateral walls of the lateral ventricles and the subgranular zone within the dentate gyrus of the hippocampus. Adult neurogenesis has been shown to occur in a wide variety of mammalian species including humans.


The process of neurogenesis entails the proliferation of progenitors within their neurogenic niche, their survival, migration and eventual mature phenotypic fate choice. Several studies have been aimed at understanding these steps in the formation of new neurons. The focus of field has been to elucidate the molecular and cellular factors regulating the transition of these precursors into functional neurons, involving several key steps like their survival, migration and integration into existing neuronal circuitry. Several studies have demonstrated that the process of neurogenesis can be regulated by a wide variety of factors like hormones, external environment, exercise, stressful experiences as well as antidepressant treatments. In addition these neurons have also been shown to be recruited to damaged areas in the brain in response to injury. Although there have been considerable advances in the regulation of this process, However, little progress has been made towards understanding the relevance of new neurons in adult brain functioning and its implications on behaviour.

The presence of adult neurogenesis has been established and several studies have examined its regulation by a range of varied factors however, the functional significance of these adult generated neurons is not well understood. Recent reports have indicated that these neurons can integrate within the existing neuronal circuitry and can send out functional projections. These neurons have also been suggested to play a role in the process of learning and memory.

I propose to study the process of adult neurogenesis and the role of newly generated neurons in regulating normal behaviour. I will use rodents as model organisms to study the process of adult neurogenesis and make use of several behavioural paradigms to assess the function of these newly born neurons.

Cells generated within the SVZ of the lateral ventricles in a rodent, migrate along the rostral migratory stream to the olfactory bulb where they differentiate into olfactory bulb interneurons. In order to examine the role of these newborn neurons arising from the SVZ, I will focus on the olfactory conditioning paradigm.

Newly born cells within the subgranular zone of the dentate gyrus, migrate a short distance into the granule cell layer of the dentate gyrus and integrate within the hippocampal circuitry. Given the role of the hippocampus in learning and memory, I will make use of hippocampal dependent tasks, such as the Morris water maze task (to assess spatial learning), the auditory fear conditioning paradigm etc to understand the role of new neurons within the SGZ of the dentate gyrus.

Furthermore, I plan to use the genetically modified mice wherein newly born neurons are labelled with a fluorescent marker protein and that expressing diphtheria toxin receptor which are currently being generated at the Queensland Brain Institute (QBI). Such mice will provide me with an excellent tool not only to ablate specific populations of new neurons within the brain but to do so in a temporally defined fashion as well. These studies along with the various behavioural paradigms will provide insight to the functions of newly generated neurons within an existing neuronal network of the adult brain.

Prof. Perry Bartlett and The Queensland Brain Institute harbours intellectual and technical expertise that will be invaluable towards my doctoral research and would give me an opportunity to contribute to this exciting field of neurogenesis.


Thanks
B4u
hey there!
very interesting to read your research objective! how is your research going? conclude any valuable results? keep on sharing your research ideas and findinds... i loved reading it! and i am excited for you ... all the best!
much love,
diamond4ever
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Old 20-01-2006, 11:35 AM   #9 (permalink)
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Re: Adult Neurogenesis

Originally Posted by b4u_hunk
Adult Neurogenesis: Exploring the functions of new neurons


The turning point in neuroscience research has been the discovery that new neurons continue to be born in the adult mammalian brain throughout life. Recent studies have shown that this pool of neurons of newly generated neurons from the stem/precursor
cells are present in discreet and specific areas of the adult brain, namely the
Subventricular zone (SVZ) lining the lateral walls of the lateral ventricles and the subgranular zone within the dentate gyrus of the hippocampus. Adult neurogenesis has been shown to occur in a wide variety of mammalian species including humans.


The process of neurogenesis entails the proliferation of progenitors within their neurogenic niche, their survival, migration and eventual mature phenotypic fate choice. Several studies have been aimed at understanding these steps in the formation of new neurons. The focus of field has been to elucidate the molecular and cellular factors regulating the transition of these precursors into functional neurons, involving several key steps like their survival, migration and integration into existing neuronal circuitry. Several studies have demonstrated that the process of neurogenesis can be regulated by a wide variety of factors like hormones, external environment, exercise, stressful experiences as well as antidepressant treatments. In addition these neurons have also been shown to be recruited to damaged areas in the brain in response to injury. Although there have been considerable advances in the regulation of this process, However, little progress has been made towards understanding the relevance of new neurons in adult brain functioning and its implications on behaviour.

The presence of adult neurogenesis has been established and several studies have examined its regulation by a range of varied factors however, the functional significance of these adult generated neurons is not well understood. Recent reports have indicated that these neurons can integrate within the existing neuronal circuitry and can send out functional projections. These neurons have also been suggested to play a role in the process of learning and memory.

I propose to study the process of adult neurogenesis and the role of newly generated neurons in regulating normal behaviour. I will use rodents as model organisms to study the process of adult neurogenesis and make use of several behavioural paradigms to assess the function of these newly born neurons.

Cells generated within the SVZ of the lateral ventricles in a rodent, migrate along the rostral migratory stream to the olfactory bulb where they differentiate into olfactory bulb interneurons. In order to examine the role of these newborn neurons arising from the SVZ, I will focus on the olfactory conditioning paradigm.

Newly born cells within the subgranular zone of the dentate gyrus, migrate a short distance into the granule cell layer of the dentate gyrus and integrate within the hippocampal circuitry. Given the role of the hippocampus in learning and memory, I will make use of hippocampal dependent tasks, such as the Morris water maze task (to assess spatial learning), the auditory fear conditioning paradigm etc to understand the role of new neurons within the SGZ of the dentate gyrus.

Furthermore, I plan to use the genetically modified mice wherein newly born neurons are labelled with a fluorescent marker protein and that expressing diphtheria toxin receptor which are currently being generated at the Queensland Brain Institute (QBI). Such mice will provide me with an excellent tool not only to ablate specific populations of new neurons within the brain but to do so in a temporally defined fashion as well. These studies along with the various behavioural paradigms will provide insight to the functions of newly generated neurons within an existing neuronal network of the adult brain.

Prof. Perry Bartlett and The Queensland Brain Institute harbours intellectual and technical expertise that will be invaluable towards my doctoral research and would give me an opportunity to contribute to this exciting field of neurogenesis.


Thanks
B4u
hey there!
very interesting to read your research objective! how is your research going? conclude any valuable results? keep on sharing your research ideas and findings... i loved reading it! and i am excited for you ... all the best!
much love,
diamond4ever
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Old 20-01-2006, 03:37 PM   #10 (permalink)
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Smile Re: Adult Neurogenesis

Originally Posted by diamond4ever
hey there!
very interesting to read your research objective! how is your research going? conclude any valuable results? keep on sharing your research ideas and findings... i loved reading it! and i am excited for you ... all the best!
much love,
diamond4ever
Hye! Diamond ( ?) Well I am trying hard 2 get over my research... Hopefully will conclude something better for the civilization>>>

Wish me Good Luck

ThanKs

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Old 22-01-2006, 04:08 AM   #11 (permalink)
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