Hopes rise for new cancer treatment after tests with Electromagnetism

simplicitynormalUrban and Civil

Nov 16, 2013 (3 years and 6 months ago)

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Grade
10 Science

Related Reading/Physics


1














PRE
-
READING ACTIVITY
:

http://www.youtube.com/watch?v=TA5SLDiIUWs


E
arly trials on patients with advanced liver cancer show low
-
level fields could
shrink
tumors


Photomicrograph of a human liver s
ection with cancer. Photograph: Alamy



Physics Gr10

Hopes rise for new cancer treatment
after tests with
E
lectromagnetism







Name:____________________

Class:____________________

Date:____________________


Grade
10 Science

Related Reading/Physics


2


1.

Scientists have used low
-
intensity electromagnetic
fields to treat

cancer

patients in trials which they say could lead
to the development of a new type of anti
-
tumor therapy.


2.

Patients hold a spoon
-
shaped
antenna
1

in their
mouths to deliver a very low
-
intensity electromagnetic field in
their bodies. In trials of patients with a
dvanced liver cancer, the
therapy
2



given three times a day


resulted in long
-
term
survival for a small number of those monitored, the team has
reported in the

British Journal of Cancer
. Their
tumors
3

shrank, while healthy cells in surrounding tissue were
unaffected. However, the scientists


from the US, Brazil,
France and Switzerland


also stressed that the technique was
still in its
infancy

and would require several years for further
trials to tak
e place. "
This is a truly novel technique
," said the
team's leader, Professor Boris Pasche of the University of
Alabama, Birmingham. "It is
innocuous
4
, can be tolerated for
long periods of time, and could be used in combination with
other therapies."


3.

Pasc
he added that he had obtained permission
from the US Food and Drug Administration to carry out trials on
large groups of patients and was talking to companies in the
US, Asia, South America, Russia and Europe about rising funds
for future research.


4.

In 200
9, Pasche and his colleagues published
results in the

Journal of Experimental and Clinical Cancer
Research

which showed that low
-
level electromagnetic fields at
precise frequencies


ranging from 0.1Hz to 114kHz


halted
cancer cell growth in small numbers

of patients. Different
cancers responded to electromagnetic fields of different
frequencies. Cells in surrounding, healthy tissue were
unaffected.


5.

The exact mechanism for this process was not
explained in the paper. However, results of recent experiments

by the team


using cancer cell cultures in the laboratory and
published in the

British Journal of Cancer



suggest that low
-
level electromagnetic fields interfere with the activity of
genes
5


Grade
10 Science

Related Reading/Physics


3


in cancer cells. In specific cases, this affected the ability of
cancer cells to grow and divide. The spread of tumors halted
and in some cases they began to
shrink
6
. "This is extremely
exciting," said Pasche. "We think the technique could also be
used to

treat breast tumors and possibly other forms of cancer."


6.

The use of electromagnetic fields was also
welcomed, cautiously, by Eleanor Barrie of Cancer Research
UK: "This research shows how specific low frequencies of
electromagnetic radiation
7

can slow th
e growth of cancer
cells in the lab. It's still unclear why the cancer cells respond in
this way, and it's not yet clear if this approach could help
patients, but it's an interesting example of how researchers are
working to find new ways to home in on can
cer cells while
leaving healthy cells unharmed."



7.

The use of electromagnetic fields to treat tumors
may seem surprising given recent controversy over claims that
fields generated by mobile phones and electricity pylons can
trigger cancers and
leukemia
8
. H
owever, Pasche stressed that
the intensity of the fields used in his team's experiments were
between 100 and 1,000 times lower than those from a mobile
phone. "In any case, the evidence produced from major studies
of users of these phones does not suggest
there is a clearly
identifiable risk posed by these electromagnetic fields," he said.










Grade
10 Science

Related Reading/Physics


4



ACTIVITY
-
1

WRITE THE WORDS UNDERLINED IN THE ABOVE PASSAGE WITH THE
CORRECT SPELLING TO WRITE THE MEANING THERAFTER FROM THE
SCIENTIFIC DICTIONARY:









NO.

WRONGLY SPELT
WORDS

CORRECT SPELLING
OF WORDS

MEANINGS

1.

TENAANN



2.

ORTUM



3

KHRINS



4

NESGE



5

PYERTHA



6

AIMEKUEL




Grade
10 Science

Related Reading/Physics


5


ACTIVITY
-
2


READ THE ABOVE PARAGRAPHS TO ANSWER THE FOLLOWING
QUESTIONS
:

1. What does the word “Infancy” mean (from

the paragraph 2 , line 10) in
this context?

_____________________________________________________________
_____________________________________________________________
____________________________________________________________.


2. What does the first pa
ragraph talk about?

_____________________________________________________________
_____________________________________________________________
____________________________________________________________.

3. Name the countries from which the funds were pla
nned to raise for the
purpose of Research.

_____________________________________________________________
_____________________________________________________________
_____________________________________________________________.

4. List the results publish
ed in the Journal

of Experimental and Clinical
Cancer Research

in 2009.

_______________________________________________________
_______________________________________________________
_______________________________________________________
______________________________________________________.



Grade
10 Science

Related Reading/Physics


6


5. According to Paragraph 5, by u
sing the low
-
level intensity waves,

a) Did the tumor growth become big or small according to the results
published in
British Journal of Cancer
?



b) What does the word
“shrink
” here refer to?

______________________________________________________

6
.
According to Paragraph no.6, what are the Researchers trying to do with
the treatment of cancer patients
?

_____________________________________________________________
_____________________________________________________________
____________________________
________________________________.


7. What causes leukemia according to the paragraph no.7?

_____________________________________________________________
_____________________________________________________________
__________________________________________
___________________
_____________________________________________________________.








Grade
10 Science

Related Reading/Physics


7


ACTIVITY


3

WRITE THE FOLLOWING SENTENCES AS “TRUE” OR “FALSE” BY READING
THE ABOVE PASSAGE CLEARLY
. Write the correct statement if the
statements are False:

1.

High
-
intensity electromagnetic fields to treat

cancer

patients in



Trials

by scientists.


(True/False).
__________________________________________
___________________
_____________________________________________________________.

2.
T
he scientists


from the US, Brazil, France and Switzerland


also
stressed that the technique was still in its
advanced stage

and would
require several years for further

trials to take place
.
(True /False).

_____________________________________________________________
_____________________________________________________________
_____________________________________________________________.

3.
L
ow
-
level electromagnetic
fields at precise frequenci
es


ranging
from 1.1Hz to 2
14kHz


halted cancer cell growth in small numbers of
patients
. (
True / False).

_____________________________________________________________
___________________________________________________________
__
_____________________________________________________________

4.
Pasche stressed that the intensity of the fields used in his team's
experiments were between 100 and 1,000 times
higher

than those
from a mobile phone.

(
True/False).

______________________
_________________________________
_______________________________________________________
______________________________________________________.


Grade
10 Science

Related Reading/Physics


8



POST
-
READING ACTIVITY
:


1.

Which branch of physics is made beneficial in the treatment of
cancer?


___________________________________________________________.


2. Discuss or Write about the novel technique discussed in the passage
given above.




____________________________________________________________.











Grade
10 Science

Related Reading/Physics


9