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    题名 作者 年代 出处 被引量
1Assay of cetazidime in biological fluids using highperformance liquid chromatography 显示文摘AYRTON J 1981J Antimicrob Chemother1981,8,:1
2Optimisation and routine use of generic ultra-high flow-rate liquid chromatography with mass spectrometric detection for the direct on-line analysis of pharmaceuticals in plasma显示文摘Ayrton J Dear GJ Leavens WJ et al 1998J Chromatogr A1998,828,12:1
3The use of turbulent flow chromatography/mass spectrometry for the rapid, direct analysis of a novel pharmaceutical compound in plasma显示文摘 Dear GJ Leavens WJ 1997Rapid Commun Mass Spectrom1997,11,:1
4Weight gain over 4 months in schizophrenia patients: acomparion of olanzapine and risperidone 显示文摘Ganguli R Brar J S Ayrton Z 2001Schizophr Res2001,49,3:1
5Cytochrome P4501A(CYP1A) induction in rat and man by the benzodioxino derivative, fluparoxan显示文摘Beresford AP Ellis WJ Ayrton J 1997Xenobiotica1997,27,2:1
6Phar-macology of cefuroxime as the 1-acetoxyethyl ester involunteers 显示文摘HARDING S M WILLIAMS P E O AYRTON J 1984Antimicrob Agents Chemother1984,25,1:1
7Pharmacology of Cefuroxime as the 1-acetoxyethyl ester in volunteers显示文摘Harding SM Williams PE Ayrton J 1984Antimicrob Agents Chemother1984,25,1:1
8Interaction between age and gender on survival outcomes in extramedullary multiple myeloma over the past two decades显示文摘BACKGROUND Extramedullary multiple myeloma(MM)(EMM)is a rare and aggressive subentity of MM that can be present at diagnosis or develop anytime during the disease course.There is a paucity of data on the clinical characteristics and overall epidemiology of EMM.Furthermore,there is a scarcity of data on how the interaction of age and gender influences the survival of EMM.AIM To evaluate the clinical characteristics of patients with EMM over the past 2 decades and to identify epidemiologic characteristics that may impact overall prognosis.METHODS A total of 858 patients diagnosed with EMM,between 2000 and 2017,were ultimately enrolled in our study by retrieving the Surveillance,Epidemiology,and End Results database.We analyzed demographics,clinical characteristics,and overall mortality(OM)as well as cancer-specific mortality(CSM)of EMM.Variables with a P value<0.1 in the univariate Cox regression were incorporated into the multivariate Cox model to determine the independent prognostic factors,with a hazard ratio(HR)of greater than 1 representing adverse prognostic factors.RESULTS From a sample of 858 EMM,the male gender(63.25%),age range 60-79 years(51.05%),and non-Hispanic whites(66.78%)were the most represented.Central Nervous System and the vertebral column was the most affected site(33.10%).Crude analysis revealed higher OM in the age group 80+[HR=6.951,95%confidence interval(95%CI):3.299-14.647,P=0],Non-Hispanic Black population(HR=1.339,95%CI:1.02-1.759,P=0.036),Bones not otherwise specified(NOS)(HR=1.74,95%CI:1.043-2.902,P=0.034),and widowed individuals(HR=2.107,95%CI:1.511-2.938,P=0).Skin involvement(HR=0.241,95%CI:0.06-0.974,P=0.046)and a yearly income of$75000+(HR=0.259,95%CI:0.125-0.538,P=0)had the lowest OM in the crude analysis.Crude analysis revealed higher CSM in the age group 80+,Non-Hispanic Black,Bones NOS,and widowed.Multivariate cox proportional hazard regression analyses only revealed higher OM in the age group 80+(HR=9.792,95%CI:4.403-21.774,P=0)and widowed individuals(HR=1.609,95%CI:1.101-2.35,P=0.014).Multivariate cox proportional hazard regression analyses of CSM also revealed higher mortality of the same groups.Eyes,mouth,and ENT involvement had the lowest CSM in the multivariate analysis.There was no interaction between age and gender in the adjusted analysis for OM and CSM.CONCLUSION EMM is a rare entity.To our knowledge,there is a scarcity of data on the clinical characteristics and prognosis factors of patients with extramedullary multiple myeloma.In this retrospective cohort,using a United States-based population,we found that age,marital status,and tumor site were independent prognostic factors.Furthermore,we found that age and gender did not interact to influence the mortality of patients with EMM.Ayrton I Bangolo Pierre Fwelo Chinmay Trivedi Sowmya Sagireddy Hamed Aljanaahi Auda Auda Maryama Mohamed Sonia Onyeka Miriam Fisher Jyoti Thapa Erwin J Tabucanon Lyuben Georgiev Annetta Wishart Shilpee Kumari Conrad Erikson Mary Bangura Orent Paddy Rashmi Madhukar Eugenio L Gomez Joshua Rathod Mansi Naria Basel Hajal Mohammad Awadhalla David Siegel Harsh Parmar Noa Biran David H Vesole Pooja Phull Simcha Weissman 2023World Journal of Clinical Oncology2023,14,4:1
9The rapid identification of drug metabolites using capillary liquid chromatography coupled to an ion trap mass spectrometer 显示文摘Dear GJ Ayrton J Plumb R 1999Rapid Commun Mass Spectrom1999,13,5:1
10Epidemiologic risk factors for patients admitted with chronic pancreatitis and pancreatic ductal adenocarcinoma in the United States显示文摘BACKGROUND Epidemiological studies of chronic pancreatitis(CP)and its association with pancreatic ductal adenocarcinoma(PDAC)are limited.Understanding demographic and ethno-racial factors may help identify patients at the highest risk for CP and PDAC.AIM To evaluate the ethno-racial risk factors for CP and its association with PDAC.The secondary aim was to evaluate hospitalization outcomes in patients admitted with CP and PDAC.METHODS This retrospective cohort study used the 2016 and 2017 National Inpatient Sample databases.Patients included in the study had ICD-10 codes for CP and PDAC.The ethnic,socioeconomic,and racial backgrounds of patients with CP and PDAC were analyzed.RESULTS Hospital admissions for CP was 29 per 100000,and 2890(0.78%)had PDAC.Blacks[adjusted odds ratio(aOR)1.13],men(aOR 1.35),age 40 to 59(aOR 2.60),and being overweight(aOR 1.34)were significantly associated with CP(all with P<0.01).In patients with CP,Whites(aOR 1.23),higher income,older age(aOR 1.05),and being overweight(aOR 2.40)were all significantly associated with PDAC(all with P<0.01).Men(aOR 1.81)and Asians(aOR 15.19)had significantly increased mortality(P<0.05).Hispanics had significantly increased hospital length of stay(aOR 5.24)(P<0.05).CONCLUSION Based on this large,nationwide analysis,black men between 40-59 years old and overweight are at significantly increased risk for admission with CP.White men older than 40 years old and overweight with higher income were found to have significant associations with CP and PDAC.This discrepancy may reflect underlying differences in healthcare access and utilization among different socioeconomic and ethno-racial groups.Daniel Lew Fatima Kamal Khiem Phan Karamvir Randhawa Sam Cornwell Ayrton I Bangolo Simcha Weissman Stephen J Pandol 2022World Journal of Clinical Oncology2022,13,11:0
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