Wednesday, May 20, 1987/The Battalion/Page 3
State and Local
alias researchers develop dye
lo monitor treatment of tumors
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■ DALLAS (AP) — Researchers have developed
a special dye that helps find and monitor tumors
as liny as a pinhead, and it could lead to assessing
tli( ef fectiveness of cancer treatments weeks ear-
liei than current methods.
■ That sjreecl could enable doctors to change
tiratment plans quickly before tumors begin
spieading, said Dr. David Ranney, who led the
University of Texas Lfealth Science Center re-
■arch team.
I Just one or two thimblefuls of tumor can over-
ulielm a patient’s disease-fighting white blood
Tils, leading to the spread of cancer, Ranney
■id Monday.
■ The dye, tested so far only in mice, enhances
the results of magnetic resonance imaging, or
MRI. MRI uses magnetic impulses and radio-fre-
(jtiency electromagnetic waves to generate high-
Jnality images of internal organs.
The researchers have studied the dye in mice
ifijected with malignant human melanomas, a le
thal form of skin cancer. One group of mice was
treated with an anti-tumor drug, while the other
gioup was left untreated.
One to four days after treatment, researchers
used an MRI machine to scan both groups of
mice. In images made before injection of the dye,
both treated and untreated tumors appeared as
gray masses, said Ranney, director of the labo
ratory of targeted diagnosis and therapy in the
pathology department.
Ranney said the dye improves detection of tu
mors because malignant tissue contains blood
vessels that are more porous than surrounding
tissue. As a result, the dye leaks out of the bloods
tream and into tumors, which show up brighter
than healthy tissue on MRI scans.
Once cancer cells die, though, blood stops
flowing through them, so dead tumor tissue does
not absorb the dye, Ranney told the Dallas Morn
ing News.
After the dye was injected into the mice, dead
cells in the middle of the treated tumors ap
peared dark on the MRI scan, while the living tu
mor cells appeared brighter than healthy tissue,
Ranney said. The untreated tumors, made up to
tally of living cells, appeared uniformly bright,
he said.
Differences between treated and untreated tu
mors were apparent in images made just 30
hours after treatment, Ranney said.
The Dallas team is one of about 20 across the
country testing methods of determining early on
whether cancer therapy is effective, said Dr. John
Doppman, chief of radiology for the National In
stitutes of Health in Rockville, Md.
Another method uses MRI to measure phos
phorus metabolism in cancer cells, Doppman
said. Changes in phosphorus metabolism occur
within only four hours of treatment with an anti
tumor drug, long before the cells actually die.
Currently, cancer doctors usually use X-rays to
tell whether chemotherapy has helped shrink tu
mors, but they must wait three or four weeks be
fore any changes can be detected, Ranney said.
“When they get to the size when you can tell if
they’ve regrown after treatment, they’re too big,”
he said.
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ale of shirts
ocking SMU
DALLAS (AR) — Southern
lethodist University officials
lave banned sales of a new T-
irt circulating on campus that
pokes fun at SMU’s play-for-pay
football scandal.
I he shins that have drawn the
lire of university officials show a
Mustang, the team’s mascot, dead
with its feet in the air. It reads,
[•SMU football 87” on the front
and “Undefeated” on the back.
The T-shirts, being sold by
[four students, can no longer be
sold on campus, university offi
cials say.
“It's degrading — this institu
tion is not dead,” said Don Noll,
[manager of the SMU bookstore
and director of licensing.
“We’re not punitive, we just
want it removed from circula
tion,’’ he said.
The students think selling the
populiir T-shirts is an easier way
to make money than mowing
lawns or waiting tables.
They were recently ordered to
take their business off university
property, hut they still occasion-
aly venture into dormitories,
hawking their shirts.
“I’ve taken some verbal abuse
for the shirts from students and
faculty, but I laugh all the way to
the bank,’’ said Van Leftwich, 22,
of Richardson, who recently
graduated with a degree in fi
nance.
Leftwich said he and his part
ners — Rick Herrick, Tom Wil-
berg and l ed Reade — have sold
about 1,000 T-shirts and have
netted a total of $4,000 from the
controversial shirts.
Eric Fox, a senior at Southwes
tern University in Georgetown,
who owns three of the shirts, said,
“They’re a hot commodity;
they’re black market T-shirts.”
Not all school officials are
miffed bv the T -shirts, he noted.
“We’ve sold a lot of shirts to ad
ministrators,” he said. “But it’s
kind of an under-the-table kind
of tiling."
Senate backs right of state
to appeal in criminal cases
AUSTIN (AP) —T he Senate ap
proved a proposal Tuesday that
would give the state a limited right to
appeal in a criminal case.
Sen. John Montford, a former
prosecutor, and Sen. Craig Wash
ington, a lawyer who specializes in
criminal defense work, debated
Montford’s proposal on appeals for
half an hour before a 26-4 Senate
vote advanced it to the House.
Currently, the state has no right
of appeal in criminal court cases,
and it would require a constitutional
amendment to grant that authority
to state and local governments.
In fact, Texas is the lone state that
prohibits all appeals by the prosecu
tion, according to an analysis of the
subject.
Washington, D-Houston, offered
an amendment to Montford’s pro
posal that would grant the de
fendant the same right of appeal as
the state, claiming that “this would
make it a little more even-handed.”
Montford, D-Lubbock, said grant
ing a def endant certain appeal rights
probably would result in inordinate
delays.
“There’s not the same motivation
— good or bad — for the state of
Texas,” he said.
Washington’s amendment was re
jected 20-10, after Montford said a
proposed constitutional amendment
with the same language as Washing
ton’s amendment was defeated by
the voters in 1980.
A bill to implement Montford’s
proposed constitutional amendment
was sent to the House on voice vote.
If approved, Montford’s proposal
would go on a statewide ballot Nov.
3.
The bill specifies that the state
would be permitted to appeal a court
order in a criminal case if, for exam
ple, the order dismisses an indict
ment, modifies a judgment, grants a
motion to suppress evidence or a
confession, sustains a claifn of for
mer jeopardy or grants a motion for
a new trial.
Senators also approved on voice
vote a conference committee report
that would change the current name
of the State Board of Morticians to
the Texas Funeral Service Commis
sion.
“This is a deadly serious motion^”
quipped I.t. Gov. Bill Hobby.
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Police kill crime watch volunteer
in Dallas after disturbance report
UJ
Hi
DALLAS (AP) — Police shot and
killed an 81-year-old crime watch
volunteer who witnesses said was try
ing to thwart an auto theft outside
his retirement home, authorities said
Tuesday.
Witnesses said police drove up
and started shooting after getting a
disturbance call late Monday night,
hut police said David Horton was
killed after he fired at officers.
The shooting conies about a week
after a congressional hearing on the
Dallas police force's use of deadly
force. Critics argued that officers are
loo quick to pull the trigger.
Mondav night two officers were
dispatched to the south Dallas apart
ment house where Horton lived af
ter a report of a disturbance with
shots fired, police spokesman Hollis
Edwards said.
Officers J.B. Nichols, 2:>, and D.
Moten, 34, saw Horton walking
across the parking lot with a rifle in
his hands as thev drove up to the
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building in a marked squad car, Ed
wards said.
He said Horton, holding the gun
at his hip. pointed the idle at both
officers as thev repeatedly ordered
him to drop the weapon. He then
fired two shots at Nichols and was
gunned clown in a hail of police fire,
Edwards said.
■■Further investigation showed
that Horton and two other men were
holding a female c itizen at gunpoint
prior to the officers’ arrival, he said.
‘Witness accounts indicate that Hor
ton and other residents had stopped
the female because of crime prob
lems and were attempting to hold
her lor police."
Police later determined the
woman apparently pulled into the
parking lot onlv to turn around and
was not involved in any theft, Eel-
Wards said.
"(Horton) was a member of the
crime watch organization that was
li ving to do something about c rime,”
Edwards said. "We have no idea why
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he fired at t he officers."
But jinimie Wilkerson, vice presi
dent ol the Park Manor Apartments
residents council, said witnesses
didn't see Horton fire any shots and
that Hoilon had yelled ‘’don't shoot”
before police shot him.
According to witnesses, he also
called out, ‘'You've got the wrong
guv." before he was killed, said Wil
kerson. w ho did not see the shooting
herself. "The police just drove up
and started shooting. Everybody
here is just sad."
Residents at the apartment com
plex have appeared before the Dal
las Housing Aulhoritv several times
rec enilv to appeal for better security.
"Am shooting is a tragedy. And in
light of the victimization of those
residents, it is even more a tragedy,"
Dll A spokesman Wavne Rosenk-
i ans said.
Edwards said Police Chief Billy
Pi inc e has asked for an independent
investigation bv the district attor
ney.s office into the shooting.
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