NATION Caucasians more resistant to HIV infection, study says I/1NORLD The Michigan Daily - Tuesday, September 17, 1996 - 7 a a' N wsday BALTIMORE - Genetic resistance to HIV infection is relatively common n people of Caucasian descent and vir- 'tually nonexistent in people of African descent, the National Cancer Institute's , i. Steven O'Brien has announced. Based on a study of more than 1,900 American men and women who have --been in AIDS-related studies for more :than a decade and who have been ekposed to the human immunodeficien- cy virus repeatedly without becoming jnfected or who are HIV-positive but fter years of infection haven't pro- gressed to AIDS, O'Brien made anoth- et finding: There is a state of partial genetic protection that slows the course of illness. - The Caucasian people who have this gene are far less likely to progress rapidly to AIDS after infection and they live AIDS-free lives an average of two years longer than infected individu- Is who don't carry the gene. t O'Brien's find- ings are so strong eXufiara - the statistical evidence so pow- pace erful - that the j- odds that this U$sc oer genetic protective - Dr effect is a matter of coincidence or ther factors are in 40 million. In the statistical world of biology, that con- stitutes virtual certainty. O'Brien's findings were announced last week in Baltimore at the annual meeting of the Institute' of Human Virology. Startling as his findings may seem, they are merely one piece of a constellation of revelations that during the past six months has turned AIDS *esearch topsy-turvy. "It's been exhilarating, the pace of dis- covery;" Dr. Anthony Fauci, director of the NIH's National Institute of Allergy and Infectious Diseases in Bethesda, Md., told his assembled colleagues. "But I ." FI Y it also gives me a migraine headache because of the difficulty of keeping up. We're at that stage that is both very excit- ing and frustrating." O'Brien's findings amplify work in the Aaron Diamond AIDS Research Center's discovery of three genetically resistant New Yorkers. The Manhattan- based center's study, reported last month in Newsday, found that the men were missing 32 bits of genetic infor- mation involved in the production of a cellular receptor called CKR-5, the most important receptor used by H IV as a doorway to human white blood cells. Ned Landau's laboratory at the Aaron Diamond Center showed that people who had genetically defective CKR-5 also had nonfunctional "doorways," so HIV couldn't get inside cells. This genetic protection is absolute if individ- uals are homozygous, meaning they inherited the trait from both parents. Just one month ago, fewer than five such indi- en viduals were known. But rng, the O'Brien and several others an n o u n ce d !y identification of dozens - Anthony Fauci perhaps hun- .Io .ia dreds - more. NIH of ficial Curiously, no one has found an African indi- vidual who is either heterozygous or homozygous for the anti-HIV gene. (Heterozygous individuals inherit a nor- mal CKR-5 gene from one parent and the abnormal, protective gene from their other parent.) A Belgian study described at the meeting looked hard, and found none. And O'Brien found that even among blacks, many of whom have some Caucasian ancestors or parents, fewer than 2 percent carry the gene (vs. 24 percent of whites). So why does this gene exist? It has to be relatively new because of its racial segregation. Scientists speculated the mutant form of CKR-5 protected against some scourge that afflicted Europeans but not Africans. The obvi- ous candidate would be the Black Death of 1346, or plague. If the mutant CKR-5 blocked plague bacteria, the survivors would be more likely to carry the trait. Why are heterozygotes slower to get AIDS? They have HIV "doorways," so their cells clearly can be infected. It turns out that when HIV attaches itself to the CKR-5 "doorways" a series of helpful chemicals is blocked. These chemicals, called chemokines, help the immune system fight off HIV. Several European laboratories, as well as that of Richard Koup of the Aaron Diamond AIDS Research Center, reported at this meeting that people who have the mutant CKR-5 genes make more of those protective chemokines. Dr. Ed Berger of the National Institute of Allergy and Infectious Diseases was among those who discovered CKR-5 and another HIV doorway dubbed fusin. "Are these the only two co-fac- tors that are important?" he asked. "Clearly they are not." Knowing some people are capable of battling HIV through these receptors and chemokines has fueled a long- standing debate: Is it the amount and type of virus in the body that dictates whether an individual will live years of disease-free life or succumb months after infection? Or is it something in that individual's immune system? If the virus is the key, the new triple-combi- nation drug treatments that knock down HIV levels could eventually be curative. But if the immune system's weaknesses are key, there is little hope these thera- pies will work. The evidence is contradictory. Dr. David Ho, director of the Aaron Diamond AIDS Research Center, says the body of an infected person makes 10 billion HIVs every day and 100 million CD4 lymphocytes daily to combat the virus. If the viral "factory" is shut down with drugs, Ho says, the immune system ought to be able to rev itself up. Rolling on Mexican children watch a tank roll past the Angel of independence monument during the Independence Day parade in Mexico City yesterday. Minor usedin federal anlti Smokin sting oerations AP PHOTO WASHINGTON (AP) - In a little publicized provision, President Clinton's crackdown on youth smok- ing encourages states to use minors in sting operations to detect illegal tobacco sales - or risk losing federal aid. The government says its new rule did generate a healthy dose of responses from citizens about the physical and psychological safety of undercover children and their ability to understand legal issues like entrapment. But it says examples around the country - including an Illinois town where stings using junior high school students have had a dramatic impact - show that such problems can be solved with proper adult supervision. "We took into consideration the impact on youth in any of these sting operations," said Mark Weber, spokesperson for the Department of Health and Human Services agency that implemented the rule. "We are working with the states to do it in a way that is acceptable to us and that is acceptable to them." The rule was issued in January by the Substance Abuse and Mental Health Services Administration, which distributes $1.2 billion a year in drug treatment and prevention funds. It mandates that all states have mandatory inspection programs by next year to catch businesses that illegally sell tobacco to children. Those that don't comply risk losing federal drug prevention money. The rule leaves it to the states to determine how to catch illegal sales, bUt strongly urges the use of undercover stings with children at least two to three years younger than the 18-year-old legal smoking age. "The department believes that-the use of minors in inspections is very effective," the rule states. For states where officials are consid- ering alternatives, the government warns, "The department has not identi- fied evidence of any other workable or valid method." Election politics endangers bill YOUNG ENTREPRENEURS ''Looking for a business opportunity with low capital investment and high return potential? If so, contact 764-4622. No phone interviewers. child care AFTER SCHOOL child care for 9 yr. old girl. Mon.-Fri. 3:15-5:45. 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Top salary & benefits. FIf or P/T. A2 area. Nanny Network 313/998-2500. NEEDED SOMEONE after school on Mon., Wed., Thurs., & every other Fri. from 3:30-6 & some mornings. Need flexible schedule & car. Please call 913-0715 after 9p.m. to start ASAP. PART-TIME CHILD CARE needed. Tues. 5:30p.m. - 8p.m. References required, ex- perience preferred. 975-0434. , v announcements Los Angeles Times WASHINGTON - Despite broad bipartisan support for a crackdown on illegal immigration, legislation before Congress to do just that has become so ensnarled in election- year politics that its prospects for passage are in doubt. Imperiling the measure is a GOP strategy partially aimed at denying President Clinton a signing ceremony in the weeks preceding the Nov. 5 election, lawmakers in both parties say. Today, House and Senate lawmakers are to decide whether to include in the final bill a controversial provision from the House version of the legislation to allow states to impose tuition on illegal immigrant students for public education. That would set up a confrontation with Senate Democrats "This strategy is designed to pin down the president," said Michelle Davis, spokesperson for House Majority Leader Dick Armey (R-Texas). "He has done an excellent job of tak- ing credit for things we pass. Not this time." Indeed, officials with Republican Bob Dole's presidential campaign - frustrated by Clinton's embrace of many tradi- tional GOP themes - are among those pushing the current strategy for the immigration bill. Sen. Dianne Feinstein (D-Calif.), a member of the con- gressional conference committee meeting on the bill today, called that strategy "extraordinarily flawed public policy." She said the people of California, who have pressed the immigration issue to the fore, "will see right through it." The House passed its immigration bill in March by a vote of 333-87. The Senate followed suit two months later, 97-3. RESPONSIBLE CARING childcare provider w/ own trans. needed for 2-3 hrs. afterschool for 8 & 10 yr. old girls. NE Ann Arbor. $7+/hr. Call 761-9813 after 6 p.m. TEACHING ASSISTANTS for preschool center near Ann Arbor. Need reliable car and be able to lift up to 40 lbs. Fun and respon- sible job, 6 to 15 hours per week. 665-5175. FREE FINANCIAL AID! Over $6 Billion in public and private sector grants & scholar- ships is now available. All students are eligible regardless of grades, income, or parent's income. Let us help. Call Student Financial Services: 1-800-263-6495 ext. F55981. GOMBERG HOUSE- Vote April and Binita for house council in South Quad. and the White House that is unlikely to Congress adjourns in a few weeks. be resolved before tickets & travel } FII Continued from Page 1 waitlists differently. "The professors never seem to fol- low (waitlists)," said LSA senior Sara Miller. "In some classes, if you're not a senior in that major it doesn't apply." School of Art junior Sherry Meyer said she has tried for three terms to take "Color," and has been on the waitlist each time. "Last time, I was No. 4 on the waitlist and the professor said she would let the first six in," Meyer said. "After a week and a half, (the profes- sor) decided that She was going to give seniority to the seniors who wanted to take the class (instead of using the wait- list)," Meyer said. For students not yet registered in the course, attending the first day of class is especially key. "I went directly to the first day of class and got an override," Miller said of one of her courses. "I wouldn't sug- gest trying to get overrides over-the phone. It took going to the professor (to get into the class)," she said. But what most students really want to know is not how to get into Calculus 115. Does the CRISP voice have a name? "No, she doesn't," Adelman said. "We were given a choice of voices, and this voice was chosen by the majority." ALUMNI SELLING pair of season football tkts. for '96 home games. Pkg. or single games avail. Dan 7708/36-9273. FOOTBALL TICKETS for sale. Good seats. Call Emily. 213-1146. 4p.m.-l 1p.m. INDIANA TKTS. NEEDED. Will pay $. Please call 669-0954 Ask for Randi. MICHIGAN versus Boston College tickets needed. 2 pairs or 4 seats together. call Jamcs at 332-4858. NEED 3 FOOTBALL tickets for Michigan vs. Boston College. Rick @ 994-1241. PRIME TICKET SERVICE Visa/MCI AMEX/ $$ buy/sell all Michigan*Lions*Wings*Amos*Boss*Phant- om. 800/500-8497. ROMANTIC ESCAPE - Cozy log cabins, $54-75 nightly, incl. hot tub, canoes, & more. Traverse City. 616/276-9502. SPRING BREAK reps. wanted Acapulco, Nassau, Cancun. Call Dan at Regency Travel 665-6122. 209 S. State Street. STUDENTS ANYWHERE in the U.S. on Continental $159 or $239. Bring your Con- tinental voucher & AMEX card. Linda at Regency Travel, 209 S. State, 665-6122. WANT TO BUY I student season football ticket. Call 517/694-5612 eves. WANTED 2 STUDENT season football tickets. Sec. 24-30. 810/473-8488. WORLDWIDE LOW air fares. Reserve your Christmas space early. Regency Travel 209 S. State St. 665-6122. FEM. TO SHARE RM. in nice condo near U-M, on bus line. $350/mo. 668-0891. STONEWALL CHILI Pepper Co.'s salsa habenero is one of the world's hottest salsas. It is only sold in Michigan at Tios Mexican Restaurant, 333 E. Huron. e sonal ADOPT Loving mom & dad w/3 yr. old little girl wish to share their hearts & home w/ newborn. Lots of love, happiness & security. Expenses pd. Call Debby & Larry 1-800/989- 2246. I A . NWROC Continued from Page 1 Klan and NWROC, but said he would have more information in a few weeks. "There's no specific date to collect (the money)," Berlin said. "Time will determine the outcome." NWROC members and supporters considered the issuance of the bill as a slap in the face to the organization. "It's the fact that they would have the gall to further attack us and to punish the leaders who fought against the KKK," said LSA senior Jessica Curtin, an NWROC member. "Their main reason for trying to sue us for the money is because they want to pin the blame on us;' Curtin said. .NWROC's attorney, George Washington, asserted that the city's motive for the billing was to find scape- goats. Washington also defended sever- al of the eight people arrested during the June 22 rallies. "With all of the people who were there, how is it that NWROC got a bill for $34,000?" Washington asked. "The answer is simple. Somebody in City Council, the city manager, doesn't like NWROC. "It's political vendetta," Washington said. Washington compared the billing to tactics that Southern segregationists used to crack down on the 1960's civil rights movement in the South. "This bill will never be paid," Washington said. "We will make the city of Ann Arbor synonymous with Selma, Ala., and Biloxi, Miss." ___.____In______5 JOIN THE PROFESSION MOST PROMISING OF THE 21 ST CENTURY 10C" ME A TEUACHiC2 Prospective Teacher Education Meeting Wednesday, October 2, 1996 6:00 p.m. Whitney Auditorium Room 1309 School of Education Building Call 764-7563 for more information. 0 m mm m mI 416 4L THE FISH DOCTOR quarium sale! 10 gallon tank $7.99 29 gallon tank $25.99 S back to school a- 7 NhANNY Vfor.v I &A4oirIs_ 45hrs.. N.E. AA. M 0