1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
o-na [289]
2 years ago
5

neuronal loss correlates with but exceeds neurofibrillary tangles in alzheimer’s disease. ann. neurol. 41, 17–24 (1997).

Biology
1 answer:
Ipatiy [6.2K]2 years ago
5 0

We quantified the number of neurons, senile plaques, and neurofibrillary tangles in a high-order association cortex to evaluate the link between dementia, neuronal loss, and neuropathological findings in Alzheimer's disease (AD). Using statistically unbiased, stereological counting techniques, we examined the superior temporal sulcus in 34 AD patients and 17 non-demented control volunteers. In non-demented control patients, the quantity of superior temporal sulcus neurons remained constant from the sixth to the ninth decade. More than half of the neurons in AD were gone. Both neuronal loss and neurofibrillary tangles grew in tandem with the length and severity of the illness, although neuronal loss outweighed neurofibrillary tangle accumulation by a factor of many.

<h3>What is Neurofibrillary ?</h3>

Inside the brain's cells are twisted fibers that are intractable, called neurofibrillary tangles. Most of the tau protein, which is a component of the microtubule structure, makes up these tangles. From one area of the nerve cell to another, the microtubule facilitates the movement of nutrients and other vital molecules.

These tangles interfere with the transport mechanism of the cell, impairing synaptic transmission between neurons. New research reveals that aberrant tau and beta-amyloid proteins, along with a number of other factors, may play a complex role in the development of the brain abnormalities associated with Alzheimer's disease.

A decrease in concentration and function of acetylcholine (ACh), a neurotransmitter crucial for processing memory and learning, is observed in Alzheimer's disease patients.

To know more about Neurofibrillary please click here ; brainly.com/question/4272690

#SPJ4

You might be interested in
Can someone please help this is 6ht grade science
KengaRu [80]

Answer: Container P.

Explanation: All of the containers started at 30 degrees, and they all lost heat, as shown in the table. However, Container P saw the smallest decrease in temperature. This means that Container P was most effective at preventing heat transfer from the water to the environment.

3 0
3 years ago
Stone Mountain was formed during the formation of the Blue Ridge Mountains around 300-350 million years ago and is considered pa
Alex787 [66]

Answer:

Stone Mountain was formed during the formation of the Blue Ridge Mountains around 300-350 million years ago and is considered part of the Appalachian Mountains.

Explanation:

4 0
3 years ago
A mutation results in an organism that lacks the ability to make one amino acid .what is true of this organism ?
Harlamova29_29 [7]
The answer is D. All of three above
7 0
3 years ago
Read 2 more answers
Explain in detail the life cycle of the metamorphosis of amphibians.
ANTONII [103]

Answer:

Amphibians begin their lives as eggs, The few eggs that get fertilized, and survive will hatch in 7-9 days. After the eggs of an Amphibian hatch they are called Tadpoles. Tadpoles breathe through gills like fish. ... Metamorphosis is the final process that changes the amphibian from tadpole to adult.

Explanation:

1. I studies this in 7th grade and remeber every single bit of it (monte vista)

2. Google

6 0
3 years ago
Explain this diagram?????????​
Simora [160]

Answer:

the diagram explains the process of DNA digestion and DNA ligation, which is usually used in molecular cloning techniques  

Explanation:

Molecular cloning can be defined as the process used to synthesize multiple copies of a particular DNA fragment. Molecular cloning requires the insertion of a foreign DNA fragment into an appropriate vector (e.g., a plasmid) through the action of specific enzymes that serve to cut and ligate DNA fragments. DNA digestion and DNA ligation use specific restriction enzymes and DNA ligases, respectively, in order to insert the foreign DNA fragment. For this purpose, restriction enzymes that generate single-stranded overhangs are preferred to create sticky ends which bind by complementary base pairing. Subsequently, a DNA ligase enzyme joins the DNA fragments together in order to create recombinant DNA molecules. DNA Ligation is often achieved by using a specific T4 DNA ligase, while there are many restriction enzymes that generate sticky-ends (e.g., BamHI, EcoRI, BaI228I, etc).

5 0
3 years ago
Other questions:
  • The bacteriologist is staining the slides of a client diagnosed with scarlet fever and rheumatic fever. The slide identifies S.
    5·1 answer
  • How to calculate the concentration of all species at equilibrium?
    9·1 answer
  • Assessment timer and count Assessment items Item 5 At each step, a dichotomous key involves how many choices?
    14·2 answers
  • When analyzing dna microarray results, what does a lack of color indicate?
    9·2 answers
  • Which organisms produce about half of the ox gen on Earth?
    12·1 answer
  • ASAP by 8:30: In order for cells to function properly (and not die), they must undergo homeostasis. This just means they must ma
    11·1 answer
  • 1. What phenotypes would you predict in the F2 generation?​
    5·2 answers
  • Bacteria make up 90 percent of the microorganisms found in most types of soil. Many types of
    13·1 answer
  • Subject Course : Earth Science
    7·2 answers
  • The nucleus of each human cell contains ________, which are threadlike structures made up of deoxyribonucleic acid (dna).
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!