Study points to a safer, better test for chromosomal

defects in the fetusand

Virus caught in the act of infecting a cell.

 Laura Ortiz Suarez

Medical StudentThird semester.

.

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Introduction . Themes: DNA, the

cell, karyotype and chromosomes

First news: Method for chromosomal defects in the fetus.

Second news: Images about virus infecting a

cell where it is confirmed hypotheses

about the infecting process

Study points to a safer, better test for

chromosomal defects in the fetus

.

"Our study is the first to show that almost all the information that is

available from an invasive procedure is

also available noninvasively from a

simple maternal blood draw"

Study points to a safer, better test for chromosomal defects in the

fetus

Study shows test that detects

chromosomal defects in the

fetus

Is a safer method

Massively parallel

sequencing (MPS) of fetal

DNA in the mother's

blood

Study points to a safer, better test for chromosomal defects in the

fetus

MPS

Alternative for the detection of chromosomal abnormalities

across the fetal genome.

But it has not been known

whether MPS is as accurate as chromosome microarrays.

Study points to a safer, better test for chromosomal defects in the

fetus

"Such a noninvasive test could have clinical utility in the near future, particularly for women

who either have a medical contraindication or lack access

to an invasive procedure"

Rava says

Student observatios first news

 Th

is is a

n impo

rtant

study

becau

se it f

acilita

tes th

e

detec

tion o

f chro

mosomal

defec

ts in

fetus

withou

t

risking

the li

fe of

the fe

tus

and m

other.

 

Virus caught in the act of infecting a cell.

.

"Although many of these details are

specific to T7," said Molineux, "the overall

process completely changes our

understanding of how a virus infects a cell."

Science Daily – Jan 10

Virus caught in the act of infecting a cell.

The process

of infecting

a cell.

T7 virus

New Discoveri

es

Virus caught in the act of infecting a cell.

Infection

process

1. the virus spreads. 2. fibers

located and extends to host the

cell rededorde

3. Pick a spot in the

cell and undergoes structural changes

4. expelling the virus proteins

5. Generates

path to enter the genetic

material of the virus

6. ejecting the viral

DNA

7. collapse proteins

8. cell membrane

reseals.

Virus caught in the act of infecting a cell.

"Although many of these details are specific to T7, the overall process completely

changes our understanding of how a virus infects a cell."

Said Molineux

Student observatios second news

.  Is very important to know

how a virus infects a cell,

in order to develop future

treatments that im

prove

the quality and life of

people.

Medical utility.

 This method will be a breakthrough

for medicine because it is better to

identify chromosomal abnormalities,

because it is noninvasive and

reduces the risk of infections that

would cause miscarriage or future

disease in the mother or the baby.

.

Medical utility.

For researchers and doctors is very important to obtain images of the activity

of the virus and it is clear how they infect, so that latter develop drugs or treatments that are more effective in treating patients who are infected.

Medical utility.

For researchers and

doctors is very important

to obtain images of the

activity of the virus so it is

clear how the infective

process is done.

Medical utility.

A better understanding of the infective process of certain virus can help researchers to develop drugs or treatments that are more effective in treating patients who are infected.

Bibliography

Martínez S, Lina Maria. Biología Molecular. 5 ed Medellín: UPB. Facultad Medicina.

Study points to a safer better test for chromosomal defects in the fetus. Science Daily. January 10.

Virus caught in the act of infecting a cell. Science Daily. January 10.

Thanks!

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