Research Topics
| L LavreysSummaryCountry: Kenya Publications
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Publications
Low serum albumin and the acute phase response predict low serum selenium in HIV-1 infected womenPaul K Drain
Department of Medicine, University of Washington, 1959 NE Pacific, A 300 Health Sciences, Box 356340, Seattle, WA 98105, USA
BMC Infect Dis 6:85. 2006..Low serum selenium has been associated with lower CD4 counts and greater mortality among HIV-1-seropositive individuals, but most studies have not controlled for serum albumin and the presence of an acute phase response...
Human herpesvirus 8: seroprevalence and correlates in prostitutes in Mombasa, KenyaLudo Lavreys
Department of Epidemiology, University of Washington, Seattle, Washington, USA
J Infect Dis 187:359-63. 2003..These results suggest that heterosexual transmission may contribute to acquisition of HHV-8 infections in this African population of prostitutes...
Hormonal contraception and risk of cervical infections among HIV-1-seropositive Kenyan womenLudo Lavreys
Departments of Epidemiology and Medicine, University of Washington, Seattle 98104 2499, USA
AIDS 18:2179-84. 2004..To evaluate the relationship between hormonal contraceptive use and the acquisition of cervical sexually transmitted infections (STI) among HIV-1-infected women...
Effect of circumcision on incidence of human immunodeficiency virus type 1 and other sexually transmitted diseases: a prospective cohort study of trucking company employees in KenyaL Lavreys
Departments of Epidemiology, Medicine, and Biostatistics, University of Washington, Seattle 98104 2499, USA
J Infect Dis 180:330-6. 1999..In this prospective cohort of trucking company employees, uncircumcised status was associated with increased risk of HIV-1 infection and genital ulcer disease, and these effects remained after controlling for potential confounders...
Trends in HIV-1 incidence in a cohort of prostitutes in Kenya: implications for HIV-1 vaccine efficacy trialsJ M Baeten
Departments of Epidemiology, Biostatistics, and Medicine, University of Washington, Seattle, Washington, USA
J Acquir Immune Defic Syndr 24:458-64. 2000..Little information is available on the estimated incidence of HIV-1 in such populations, especially information on incidence over time and incidence while participating in risk-reduction programs...
Hormonal contraception and risk of sexually transmitted disease acquisition: results from a prospective studyJ M Baeten
Department of Epidemiology, University of Washington, Seattle, WA 98104 2499, USA
Am J Obstet Gynecol 185:380-5. 2001..To examine the relationship between use of oral contraceptive pills or depot medroxyprogesterone acetate and sexually transmitted disease acquisition...
Treatment of cervicitis is associated with decreased cervical shedding of HIV-1R S McClelland
Department of Medicine, University of Washington, Seattle 98104, USA
AIDS 15:105-10. 2001..Treatment of sexually transmitted diseases may be an important means of decreasing the infectivity of HIV-1 seropositive women by reducing exposure to HIV-1 in genital secretions...
Evaluation of a low-dose nonoxynol-9 gel for the prevention of sexually transmitted diseases: a randomized clinical trialB A Richardson
Departments of Biostatistics, Epidemiology, and Medicine, University of Washington, Seattle WA 98104-2499, USA
Sex Transm Dis 28:394-400. 2001....
Contribution of HIV-1 infection to acquisition of sexually transmitted disease: a 10-year prospective studyR Scott McClelland
Department of Medicine, University of Washington, Seattle, Washington 98104, USA
J Infect Dis 191:333-8. 2005..Sexually transmitted diseases (STDs) enhance human immunodeficiency virus (HIV)-1 susceptibility, but few studies have examined the reciprocal effect of HIV-1 on STD acquisition...
Correlates of human herpesvirus 8 seropositivity among heterosexual men in KenyaJared M Baeten
Department of Epidemiology, University of Washington, Seattle 98104-2499, USA
AIDS 16:2073-8. 2002..Prospective studies of HHV-8 acquisition in heterosexual African populations are needed to demonstrate whether safer sexual practices can reduce transmission...
Studies of human immunodeficiency virus type 1 mucosal viral shedding and transmission in KenyaJ Overbaugh
Program in Molecular Medicine, Fred Hutchinson Cancer Research Center, Seattle, WA 98109 1024, USA
J Infect Dis 179:S401-4. 1999..Of interest, our data suggest that the complexity of the virus that is transmitted may be different in female and male sexual exposures...
Infection with Trichomonas vaginalis increases the risk of HIV-1 acquisitionR Scott McClelland
Department of Medicine, University of Washington, Seattle, WA 98104, USA
J Infect Dis 195:698-702. 2007..52-fold (95% confidence interval, 1.04-2.24-fold) increased risk of HIV-1 acquisition after adjustment for potential confounding factors. Treatment and prevention of T. vaginalis infection could reduce HIV-1 risk in women...
A prospective study of risk factors for bacterial vaginosis in HIV-1-seronegative African womenR Scott McClelland
Department of Medicine, University of Washington, Seattle, WA 98104, USA
Sex Transm Dis 35:617-23. 2008..Bacterial vaginosis (BV) is common and has been associated with increased HIV-1 susceptibility. The objective of this study was to identify risk factors for BV in African women at high risk for acquiring HIV-1...
Shedding of human herpesvirus 8 in oral and genital secretions from HIV-1-seropositive and -seronegative Kenyan womenMelanie M Taylor
Department of Medicine, University of Washington, Seattle, Washington, USA
J Infect Dis 190:484-8. 2004..1 [95% confidence interval, 1.1-4.0]). In HIV-1-seropositive women, there was no association between detection of HHV8 and either CD4 count or HIV-1 viral load...
Improvement of vaginal health for Kenyan women at risk for acquisition of human immunodeficiency virus type 1: results of a randomized trialR Scott McClelland
Department of Medicine, University of Washington, Seattle, USA
J Infect Dis 197:1361-8. 2008..Vaginal infections are common and have been associated with increased risk for acquisition of human immunodeficiency virus type 1 (HIV-1)...
Impact of an alarm device on medication compliance in women in Mombasa, KenyaP A Frick
Departments of Epidemiology and Medicine, University of Washington, Seattle, Washington, USA
Int J STD AIDS 12:329-33. 2001..In conclusion, the alarm device was found to significantly improve medication adherence rates and may be particularly beneficial for improving adherence to antiretroviral therapy among HIV-1 infected persons in developing countries...
Effect of contraceptive methods on natural history of HIV: studies from the Mombasa cohortJared M Baeten
University of Washington, Seattle, WA, USA
J Acquir Immune Defic Syndr 38:S18-21. 2005
Vaginal washing and increased risk of HIV-1 acquisition among African women: a 10-year prospective studyR Scott McClelland
Department of Medicine, University of Washington, Seattle, WA 98104, USA
AIDS 20:269-73. 2006..No prospective study has examined the risk of HIV-1 acquisition associated with vaginal washing, although intravaginal practices have been identified as potentially important contributors to HIV-1 susceptibility...
Virus load during primary Human Immunodeficiency Virus (HIV) type 1 infection is related to the severity of acute HIV illness in Kenyan womenLudo Lavreys
University of Washington, Seattle, WA, 98104, USA
Clin Infect Dis 35:77-81. 2002..4 log(10) copies/mL...
Associations between intravaginal practices and bacterial vaginosis in Kenyan female sex workers without symptoms of vaginal infectionsWisal M Hassan
Department of Epidemiology, University of Washington, Seattle, Washington, USA
Sex Transm Dis 34:384-8. 2007..Bacterial vaginosis (BV) is highly prevalent among African women and has been associated with adverse pregnancy outcomes, sexually transmitted diseases, and HIV-1...
A comparison of genital HIV-1 shedding and sexual risk behavior among Kenyan women based on eligibility for initiation of HAART according to WHO guidelinesR Scott McClelland
Departments of Medicine, University of Washington, Box 359909, 325 Ninth Avenue, Seattle, WA 98104, USA
J Acquir Immune Defic Syndr 41:611-5. 2006..Guidelines for initiating antiretrovirals are based on markers of advanced disease and are not directly linked to markers of HIV-1 transmission such as viral shedding...
The effect of hormonal contraception on genital tract shedding of HIV-1Chia C Wang
Department of Medicine, University of Washington, Seattle, Washington 98104-2499, USA
AIDS 18:205-9. 2004..Our results may have important implications regarding the infectivity of women using hormonal contraception, and highlight the need for epidemiologic studies of transmission rates from women using and not using hormonal contraception...
HIV-1 acquisition and disease progression are associated with decreased high-risk sexual behaviour among Kenyan female sex workersR Scott McClelland
Departments of Medicine, University of Washington, 325 Ninth Avenue, Seattle, WA 98104, USA
AIDS 20:1969-73. 2006..Changes in sexual risk behaviour may occur following HIV-1 infection...
Identification of modifiable factors that affect the genetic diversity of the transmitted HIV-1 populationManish Sagar
Division of Human Biology, Fred Hutchinson Cancer Research Center, University of Washington, 1100 Fairview Avenue, Seattle, WA 98109, USA
AIDS 18:615-9. 2004..CONCLUSION: The presence of genital tract infections and hormonal contraceptive use at the time of transmission were associated with the acquisition of multiple HIV-1 variants...
A decrease in albumin in early HIV type 1 infection predicts subsequent disease progressionSusan M Graham
Department of Medicine, University of Washington, Seattle, Washington 98104, USA
AIDS Res Hum Retroviruses 23:1197-200. 2007..0, p = 0.008). Trends for an increased risk of mortality were also seen. A greater decrease in albumin levels accompanying HIV-1 acquisition may be a marker for changes in early infection associated with more rapid disease progression...
Hormonal contraceptive use, herpes simplex virus infection, and risk of HIV-1 acquisition among Kenyan womenJared M Baeten
Seattle HIV Prevention Trials Unit, Department of Medicine, University of Washington, 9012 Boren Avenue, Seattle, WA 98104, USA
AIDS 21:1771-7. 2007..A recent study from Uganda and Zimbabwe found that women using hormonal contraception were at increased risk for HIV-1 if they were seronegative for herpes simplex virus type 2 (HSV-2), but not if they were HSV-2 seropositive...
Vitamin A deficiency and the acute phase response among HIV-1-infected and -uninfected women in KenyaJared M Baeten
Department of Epidemiology, University of Washington, Seattle 98104 2499, USA
J Acquir Immune Defic Syndr 31:243-9. 2002..These results provide possible explanations for the disparity between observational studies and randomized trials of vitamin A for HIV-1 infection...
Hormonal contraception and risk of HIV-1 acquisition: results of a 10-year prospective studyLudo Lavreys
Departments of Epidemiology and Medicine, University of Washington, Seattle, WA, USA
AIDS 18:695-7. 2004
HIV type 1 variants transmitted to women in Kenya require the CCR5 coreceptor for entry, regardless of the genetic complexity of the infecting virusE Michelle Long
Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
AIDS Res Hum Retroviruses 18:567-76. 2002....
Relationship between markers of HIV-1 disease progression and serum beta-carotene concentrations in Kenyan womenJared M Baeten
Department of Medicine, University of Washington, Seattle, WA 98104, USA
Int J STD AIDS 18:202-6. 2007....
HIV-1 subtype D infection is associated with faster disease progression than subtype A in spite of similar plasma HIV-1 loadsJared M Baeten
Department of Medicine, University of Washington, Seattle, WA, USA
J Infect Dis 195:1177-80. 2007..There were no differences in plasma viral load by HIV-1 subtype during follow-up. HIV-1 subtype D infection is associated with a >2-fold higher risk of death than subtype A infection, in spite of similar plasma HIV-1 loads...
Comparison of human immunodeficiency virus type 1 viral loads in Kenyan women, men, and infants during primary and early infectionBarbra A Richardson
Department of Biostatistics, University of Washington and Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, 98104, USA
J Virol 77:7120-3. 2003....
Higher pre-infection vitamin E levels are associated with higher mortality in HIV-1-infected Kenyan women: a prospective studySusan M Graham
Department of Medicine, University of Washington, Seattle, Washington 98195, USA
BMC Infect Dis 7:63. 2007..However, vitamin E supplementation has also been reported to increase CCR5 expression, which could increase HIV-1 replication. We hypothesized that vitamin E levels at HIV-1 acquisition may influence disease progression...
Injectable contraceptive use and genital ulcer disease during the early phase of HIV-1 infection increase plasma virus load in womenLudo Lavreys
Department of Epidemiology, Medicine, and Biostatistics, University of Washington, Seattle, Washington 98104 2499, USA
J Infect Dis 189:303-11. 2004..These findings suggest that, in women, the use of DMPA and the presence of GUD during the early phase of HIV-1 infection may influence the natural course of infection...
High levels of cervical HIV-1 RNA during early HIV-1 infectionLudo Lavreys
Department of Epidemiology, University of Washington, Seattle, Washington, USA
AIDS 20:2389-90. 2006..43 versus 2.85 log10 copies/swab, P < 0.001). After adjusting for HIV-1-plasma RNA, cervical HIV-1 RNA from 30 days or less after infection was increased by 0.45 log10 copies/swab (P = 0.006)...
The influence of hormonal contraceptive use on HIV-1 transmission and disease progressionJared M Baeten
Department of Medicine, University of Washington, Seattle, WA, USA
Clin Infect Dis 45:360-9. 2007..Safe and effective contraceptive choices are essential for women with and at risk for HIV-1 infection. Thus, understanding the effect, if any, of hormonal contraception on HIV-1 disease among women is a public health priority...
Vitamin A supplementation and human immunodeficiency virus type 1 shedding in women: results of a randomized clinical trialJared M Baeten
Department of Epidemiology, University of Washington, 325 Ninth Avenue, Seattle, WA 98104 2499, USA
J Infect Dis 185:1187-91. 2002..Vitamin A supplementation is unlikely to decrease the infectivity of women infected with HIV-1...
Quantification of genital human immunodeficiency virus type 1 (HIV-1) DNA in specimens from women with low plasma HIV-1 RNA levels typical of HIV-1 nontransmittersSarah Benki
Department of Microbiology, University of Washington, Seattle, WA 98109, USA, and Coast Provincial General Hospital, Mombasa, Kenya
J Clin Microbiol 44:4357-62. 2006..The assay described here can be utilized in future efforts to examine the role of cell-associated HIV-1 in transmission...
Diversity in HIV-1 envelope V1-V3 sequences early in infection reflects sequence diversity throughout the HIV-1 genome but does not predict the extent of sequence diversity during chronic infectionManish Sagar
Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
AIDS Res Hum Retroviruses 22:430-7. 2006..Analysis of HIV-1 sequences from about 3 years after infection revealed that the level of diversity and diversification was similar between the women in the two groups...
Use of serum retinol-binding protein for prediction of vitamin A deficiency: effects of HIV-1 infection, protein malnutrition, and the acute phase responseJared M Baeten
Department of Epidemiology, University of Washington, Seattle, WA 98104, USA
Am J Clin Nutr 79:218-25. 2004..The performance of RBP in the context of infection or protein malnutrition, however, has not been evaluated...
Micronutrient supplementation increases genital tract shedding of HIV-1 in women: results of a randomized trialR Scott McClelland
Department of Medicine, University of Washington, Seattle, WA 98104, USA
J Acquir Immune Defic Syndr 37:1657-63. 2004..The potential benefit of micronutrient supplementation in HIV-1-seropositive women should be considered in relation to the potential for increased infectivity...
Infection with multiple human immunodeficiency virus type 1 variants is associated with faster disease progressionManish Sagar
Divisions of Human Biology, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington 98109, USA
J Virol 77:12921-6. 2003..01) 4 to 24 months after infection compared to women who were infected with a single viral genotype. These studies suggest that early HIV-1 genetic diversity is linked to faster disease progression...
Female-to-male infectivity of HIV-1 among circumcised and uncircumcised Kenyan menJared M Baeten
Department of Epidemiology, University of Washington, Seattle, Washington 98104 2499, USA
J Infect Dis 191:546-53. 2005..e., infectivity) for circumcised and uncircumcised men, by use of detailed accounts of sexual behavior in a population with multiple partnerships...
Evidence for frequent reinfection with human immunodeficiency virus type 1 of a different subtypeBhavna Chohan
Division of Human Biology, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, C3-168, Seattle, WA 98109-1024, USA
J Virol 79:10701-8. 2005..Our findings indicate an urgent need for studies of larger cohorts to determine the incidence and timing of both intersubtype and intrasubtype reinfection...
Higher set point plasma viral load and more-severe acute HIV type 1 (HIV-1) illness predict mortality among high-risk HIV-1-infected African womenLudo Lavreys
Department of Epidemiology, Medicine, and Biostatistics, University of Washington, Seattle, WA 98104 2499, USA
Clin Infect Dis 42:1333-9. 2006..We used data from a prospective cohort study of female sex workers in Mombasa, Kenya, who were followed up monthly from before the date of HIV-1 infection...
HIV-1 infection alters the retinol-binding protein:transthyretin ratio even in the absence of the acute phase responseJared M Baeten
Department of Epidemiology, University of Washington, Seattle, WA, USA
J Nutr 136:1624-9. 2006..Our results raise questions about the utility of this measurement given the high prevalence of HIV-1 infection in areas where vitamin A deficiency is common...
Vitamin A supplementation and genital shedding of herpes simplex virus among HIV-1-infected women: a randomized clinical trialJared M Baeten
Department of Epidemiology, University of Washington, Seattle, Washington 98104 2499, USA
J Infect Dis 189:1466-71. 2004..Vitamin A supplementation is unlikely to decrease HSV shedding and infectivity...
Human herpesvirus 8 seroconversion in Kenyan women by enzyme-linked immunosorbent assay and immunofluorescence assayBhavna H Chohan
Department of Medical Microbiology, University of Nairobi, Nairobi, Kenya
J Clin Virol 30:137-44. 2004....
Selection for human immunodeficiency virus type 1 envelope glycosylation variants with shorter V1-V2 loop sequences occurs during transmission of certain genetic subtypes and may impact viral RNA levelsBhavna Chohan
Division of Human Biology, Fred Hutchinson Cancer Center, 1100 Fairview Ave. N, C3-168 Seattle, WA 98109-1024, USA
J Virol 79:6528-31. 2005..Thus, our study also suggests that the extent of glycosylation in the infecting virus could impact disease progression...
