Page 4/The Battalion/Tuesday, March 29, 1988
Texas ASM
Flying Club
HLeacfdng tfie ‘Best to Bty the Best
Interested people are urged to attend our meeting
March 29, 1988 at the Airport Clubhouse
For information
Call Julie Scott 846-1279
7:00 p.m.
MEXICAN AMERICAN IMPACT
ON POLITICS
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Benefi
)ate*
Physiologist looks
to find causes, cure
for hypertension
By Sharon Maberry
Reporter
The causes of about 90 percent of
the high blood pressure cases re
ported in the United States are un
known, a Texas A&M University re
searcher says.
Dr. Gerald Meininger, an asso
ciate professor of physiology at the
Texas A&M College of Medicine,
says he is conducting research to de
termine the unknown causes of high
blood pressure, or hypertension.
Hypertension, which affects about
58 million Americans, increases an
individual’s risk of heart attack,
stroke and kidney disease, Mei
ninger says.
“I am interested in the role of mi
crocirculation in high blood pres
sure,” Meininger said. “Microcircu
lation involves the small blood
vessels in the body.”
These small vessels, embedded
within the tissues of the body, con
trol blood flow and delivery of oxy
gen and other nutrient material to
the tissues, he says.
Meininger says hypertension oc
curs when these small vessels be
come constricted and resist blood
flow. Pressure goes up because of
the high resistance to blood flow
through the small vessels. An abnor
mal amount of constriction of these
vessels seems to be a problem in hy
pertension, he says.
Scientists can determine the
causes of only about 10 percent of
the high blood pressure pases re
ported in the United States, he says.
Known causes of hypertension in
clude abnormal activity of the ner
vous system and of several circula
tory hormones, he says.
“In addition, there appears to be a
group of mechanisms that are intrin
sic to the (blood) vessels themselves,”
Meininger says. “These mechanisms
of autoregulation are important for
normal regulation of 1 unction in
these vessels.”
Meininger says these blood vessels
sense specific signals by the body tis
sues and react accordingly to permit
the correct amount of blood flow.
When the vessels constrict, the in
crease in pressure seems to stimulate
these local mechanisms to constrict
even more, he says. This amplifies
the initial disturbance into a greater
disturbance and blood pressure in
creases.
Trying to figure out what stimu
lates these mechanisms to cause va
soconstriction (a reduction in the
size of the blood vessels) is what he’s
been researching since 1981, he says.
“I’ve called attention to these local
mechanisms in autoregulation as
contributors to the hypertensive dis
ease process,” Meininger says. “My
goals are to identify precisely what
these mechanisms are and if various
drugs can be used to manipulate
these mechanisms.”
Meininger says his research is im
portant because when the cause of
hypertension is determined, it can
be cured surgically.
However, when the cause is un
known, as in almost all high blood
pressure cases in the United States,
the problem can be treated but not
cured, he says.
“Treatments are aimed at keeping
the blood pressure down at a normal
level,” he says.
Such treatments include drugs
that increase the size of the con
stricted vessels, reduce abnormal ac
tivity of the central nervous system
and reduce heart action in the body,
he says.
Other methods aimed at control
ling hypertension are weight loss,
exercise and elimininating smoking,
he says.
Group rapes
girl, shoots
man in park
SAN ANTONIO (AP)-
lice searched Monday foraeroiif
of thugs accused of sexually
sauliing a woman and killingbtj
boyfriend when he tried tocom
to her def ense, authorities said
Authorities were looking fa
five young Hispanic menaccua
in the assault and slaying and:
the random shooting of anolfc
man who was walking near ik
scene, police spokesman Juam:
Stewart said.
Victor Paul Ramirez, 20, w
shot in the hack of the headaiii
in the chest at Padre Parkjoggic;
trail, just south of downtown
His 21-year-old girlfriendw
treated at Medical Center Hosp
tal and released alter the attad
which occurred alxtut ll:40pi
Saturday.
T he girlfriend told the Ra:
irez family Sunday that they ha:
decided to take a late-night strtf
through the park. The gar,j
jumped the couple on thejoggiri
path and demanded Ramire;
money, said his brother, Jobi
Ramirez.
“He said, T don’t haveam-
it’s in the car,’ ’’ the brothersaii!
quoting from the girlfriend'sa(
count. “They didn’t like tha:
These two guys held my brotbt
while three had their way will
(the woman).”
The woman told police ski
heard Ramirez yelling and strut
gling with the two men holdiutl
him and that she believed one
the men holding her went it
Ramirez and shot him.
The five men then fledandt
few minutes later, EdwigenEntt
quez Jr., 22, was shot in theabdfr
men as he passed a group offel
men running through a p;
lot.
“No motive — they just sh#
him at random,” Tavitas said
1713-486
$'
$1
$<
CHARL
C
Athlete recovers from 10-month coma
FORT WORTH (AP) — Some high school students
may dread the end of spring break, but 17-year-old
Mike Guynes was anxious to return to class after a pain
ful recovery from a football injury.
It’s been nearly two years since Guynes collapsed
during a Martin High School football practice and
slipped into a coma when a blood vessel ruptured in his
brain. On Monday, he entered classes for the orthope-
dically handicapped at Lamar High School, but that
didn’t dampen his spirits.
“I’m excited,” Guynes said through his mother, Kay.
“It’s getting back to a normal life.”
He was injured during a “machine gun alley" fooifl
drill in which a player must block a string of otherpb
ers running at him one after another. Guynes,at
fensive back, was in a coma for 10 months, andrecott
has been slow and often painful.
Guynes said he always knew he would be bad
school one day, hut never thought it would take sob
to prepare. His new classroom is part of a special edts
lion program for students who are physically!
icapped.
whe
ors]
occi
CareP
when
7 day:
with a
medic
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