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| 1 | No association between cyclooxygenase-2 and uridine diphosphate glucuronosyltransferase 1A6 genetic polymorphisms and colon cancer risk显示文摘AIM:To investigate the association of variations in the cyclooxygenase-2(COX2) and uridine diphosphate glucuronosyltransferase 1A6(UGT1A6) genes and non-steroidal anti-inflammatory drugs(NSAIDs) use with risk of colon cancer.METHODS:NSAIDs,which are known to reduce the risk of colon cancer,act directly on COX2 and reduce its activity.Epidemiological studies have associated variations in the COX2 gene with colon cancer risk,but others were unable to replicate this finding.Similarly,enzymes in the UGT1A6 gene have been demonstrated to modify the therapeutic effect of NSAIDs on colon adenomas.Polymorphisms in the UGT1A6 gene have been statistically shown to interact with NSAID intake to influence risk of developing colon adenomas,but not colon cancer.Here we examined the association of tagging single nucleotide polymorphisms(SNPs) in the COX2 and UGT1A6 genes,and their interaction with NSAID consumption,on risk of colon cancer in a population of 422 colon cancer cases and 481 population controls.RESULTS:No SNP in either gene was individually statistically significantly associated with colon cancer,nor did they statistically significantly change the protective effect of NSAID consumption in our sample.Like others,we were unable to replicate the association of variants in the COX2 gene with colon cancer risk(P > 0.05),and we did not observe that these variants modify the protective effect of NSAIDs(P > 0.05).We were able to confirm the lack of association of variants in UGT1A6 with colon cancer risk,although further studies will have to be conducted to confirm the association of these variants with colon adenomas.CONCLUSION:Our study does not support a role of COX2 and UGT1A6 genetic variations in the development of colon cancer. | Cheryl L Thompson Sarah J Plummer Alona Merkulova Iona Cheng Thomas C Tucker Graham Casey Li Li | 2009 | World Journal of Gastroenterology2009，15，18： | 11 |
| 2 | Gynecologic oncologists involvement on ovarian cancer standard of care receipt and survival显示文摘AIM:To examine the influence of gynecologic oncolo-gists(GO) in the United States on surgical/chemotherapeutic standard of care(SOC), and how this translates into improved survival among women with ovarian cancer(OC).METHODS: Surveillance, Epidemiology, and End Result(SEER)-Medicare data were used to identify 11688 OC patients(1992-2006). Only Medicare recipients with an initial surgical procedure code(n = 6714) were included. Physician specialty was identified by linking SEER-Medicare to the American Medical Association Masterfile. SOC was defined by a panel of GOs. Multivariate logistic regression was used to determine predictors of receiving surgical/chemotherapeutic SOCand proportional hazards modeling to estimate the effect of SOC treatment and physician specialty on survival. RESULTS: About 34% received surgery from a GO and 25% received the overall SOC. One-third of women had a GO involved sometime during their care. Women receiving surgery from a GO vs non-GO had 2.35 times the odds of receiving the surgical SOC and 1.25 times the odds of receiving chemotherapeutic SOC(P < 0.01). Risk of mortality was greater among women not receiving surgical SOC compared to those who did [hazard ratio = 1.22(95%CI: 1.12-1.33), P < 0.01], and also was higher among women seen by non-GOs vs GOs(for surgical treatment) after adjusting for covariates. Median survival time was 14 mo longer for women receiving combined SOC. CONCLUSION: A survival advantage associated with receiving surgical SOC and overall treatment by a GO is supported. Persistent survival differences, particularly among those not receiving the SOC, require further investigation. | Sun Hee Rim Shawn Hirsch Cheryll C Thomas Wendy R Brewster Darryl Cooney Trevor D Thompson Sherri L Stewart | 2016 | World Journal of Obstetrics and Gynecology2016，5，2： | 3 |
| 3 | No association between phosphatase and tensin homolog genetic polymorphisms and colon cancer显示文摘AIM: To investigate the association between single nucleotide polymorphisms (SNPs) in the phosphatase and tensin homolog (PTEN) tumor suppressor gene and risk of colon cancer. METHODS: We utilized a population-based casecontrol study of incident colon cancer individuals (n= 421) and controls (n = 483) aged ≥ 30 years to conduct a comprehensive tagSNP association analysis of the PTEN gene. RESULTS: None of the PTEN SNPs were statistically significantly associated with colon cancer when controlled for age, gender, and race, or when additionally adjusted for other known risk factors (P > 0.05). Haplotype analyses similarly showed no association between the PTEN gene and colon cancer. CONCLUSION: Our study does not support PTEN as a colon cancer susceptibility gene. | Lynette S Phillips Cheryl L Thompson Alona Merkulova Sarah J Plummer Thomas C Tucker Graham Case Li Li | 2009 | World Journal of Gastroenterology2009，15，30： | 2 |
| 4 | Dissipa- tion of nicosulfuron and rimsulfuron in surface soil显示文摘 | CHERYL A P ROBERT M H THOMAS C M | 2002 | Jour- nal of Agricultural and Food Chemistry2002，50，9： | 1 |
| 5 | Expression of heat-stable enterotoxln STb by adherent Escherichia coli is not sufficient to cause severe diarrhea in neonatal pigs显示文摘 | Thomas A C Cheryl J H Robert A S | 1998 | Infect Immun1998，66，3： | 1 |
| 6 | Beitinger Projected US distributions of transgenic and wildtype zebra danios, Danio rerio, based on temperature tolerance data显示文摘 | Cheryl C Thomas L | 2006 | Journal of Thermal Biology2006，31，： | 1 |
| 7 | Effect of gynecologic oncologist availability on ovarian cancer mortality显示文摘AIM: To determine the association between the distribution of gynecologic oncologist(GO) and populationbased ovarian cancer death rates. METHODS: Data on ovarian cancer incidence and mortality in the United States was supplemented with United States census data, and analyzed in relation to practicing GOs. GO locations were geocoded to link association between county variables and GO availability. Logistic regression was used to measure areas of high and low ovarian cancer mortality, adjusting for contextual variables. RESULTS: Practicing GOs were unevenly distributed in the United States, with the greatest numbers in metropolitan areas. Ovarian cancer incidence and death rates increased as distance to a practicing GO increased. A relatively small number(153) of counties within 24 miles of a GO had high ovarian cancer death rates compared to 577 counties located 50 or more miles away with high ovarian cancer death rates. Counties located 50 or more miles away from a GO practice had an almost 60% greater odds of high ovarian cancer mortality compared to those with closer practicing GOs(OR = 1.59, 95%CI: 1.18-2.15). CONCLUSION: The distribution of GOs across the United States appears to be significantly associated with ovarian cancer mortality. Efforts that facilitate outreach of GOs to certain populations may increase geographic access. | Sherri L Stewart Darryl Cooney Shawn Hirsch Lauren Westervelt Thomas B Richards Sun Hee Rim Cheryll C Thomas | 2014 | World Journal of Obstetrics and Gynecology2014，3，2： | 0 |
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