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Dive into the research topics where Courtney Maierhofer is active.

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Featured researches published by Courtney Maierhofer.


Morbidity and Mortality Weekly Report | 2016

Notes from the Field: Increase in Neisseria meningitidis-Associated Urethritis Among Men at Two Sentinel Clinics - Columbus, Ohio, and Oakland County, Michigan, 2015.

Jose A. Bazan; Amy S. Peterson; Robert D. Kirkcaldy; Elizabeth C. Briere; Courtney Maierhofer; Abigail Norris Turner; Denisse B. Licon; Nicole Parker; Amanda Dennison; Melissa Ervin; Laura Johnson; Barbara Weberman; Pamela Hackert; Xin Wang; Cecilia B. Kretz; A. Jeanine Abrams; David L. Trees; Carlos del Rio; David S. Stephens; Yih-Ling Tzeng; Mary DiOrio; Mysheika Williams Roberts

Neisseria meningitidis (Nm) urogenital infections, although less common than infections caused by Neisseria gonorrhoeae (Ng), have been associated with urethritis, cervicitis, proctitis, and pelvic inflammatory disease. Nm can appear similar to Ng on Gram stain analysis (gram-negative intracellular diplococci) (1-5). Because Nm colonizes the nasopharynx, men who receive oral sex (fellatio) can acquire urethral Nm infections (1,3,5). This report describes an increase in Nm-associated urethritis in men attending sexual health clinics in Columbus, Ohio, and Oakland County, Michigan.


Clinical Infectious Diseases | 2017

Large Cluster of Neisseria meningitidis Urethritis in Columbus, Ohio, 2015

Jose A. Bazan; Abigail Norris Turner; Robert D. Kirkcaldy; Adam C. Retchless; Cecilia B. Kretz; Elizabeth Briere; Yih-Ling Tzeng; David S. Stephens; Courtney Maierhofer; Carlos del Rio; A. Jeanine Abrams; David L. Trees; Melissa Ervin; Denisse B. Licon; Karen S. Fields; Mysheika Williams Roberts; Amanda Dennison; Xin Wang

Background Neisseria meningitidis (Nm) is a Gram-negative diplococcus that normally colonizes the nasopharynx and rarely infects the urogenital tract. On Gram stain of urethral exudates, Nm can be misidentified as the more common sexually transmitted pathogen Neisseria gonorrhoeae. Methods In response to a large increase in cases of Nm urethritis identified among men presenting for screening at a sexually transmitted disease clinic in Columbus, Ohio, we investigated the epidemiologic characteristics of men with Nm urethritis and the molecular and phylogenetic characteristics of their Nm isolates. The study was conducted between 1 January and 18 November 2015. Results Seventy-five Nm urethritis cases were confirmed by biochemical and polymerase chain reaction testing. Men with Nm urethritis were a median age of 31 years (interquartile range [IQR] = 24-38) and had a median of 2 sex partners in the last 3 months (IQR = 1-3). Nm cases were predominantly black (81%) and heterosexual (99%). Most had urethral discharge (91%), reported oral sex with a female in the last 12 months (96%), and were treated with a ceftriaxone-based regimen (95%). A minority (15%) also had urethral chlamydia coinfection. All urethral Nm isolates were nongroupable, ST-11 clonal complex (cc11), ET-15, and clustered together phylogenetically. Urethral Nm isolates were similar by fine typing (PorA P1.5-1,10-8, PorB 2-2, FetA F3-6), except 2, which had different PorB types (2-78 and 2-52). Conclusions Between January and November 2015, 75 urethritis cases due to a distinct Nm clade occurred among primarily black, heterosexual men in Columbus, Ohio. Future urogenital Nm infection studies should focus on pathogenesis and modes of sexual transmission.


Open Forum Infectious Diseases | 2016

Altered Monocyte and Endothelial Cell Adhesion Molecule Expression Is Linked to Vascular Inflammation in Human Immunodeficiency Virus Infection

Manjusha M. Kulkarni; Emily Bowman; Janelle Gabriel; Taylor Amburgy; Elizabeth Mayne; David A. Zidar; Courtney Maierhofer; Abigail Norris Turner; Jose A. Bazan; Susan L. Koletar; Michael M. Lederman; Scott F. Sieg; Nicholas T. Funderburg

Background. Human immunodeficiency virus (HIV)-infected individuals have increased risk for vascular thrombosis, potentially driven by interactions between activated leukocytes and the endothelium. Methods. Monocyte subsets (CD14+CD16−, CD14+CD16+, CD14DimCD16+) from HIV negative (HIV−) and antiretroviral therapy-treated HIV positive (HIV+) participants (N = 19 and 49) were analyzed by flow cytometry for adhesion molecule expression (lymphocyte function-associated antigen 1 [LFA-1], macrophage-1 antigen [Mac-1], CD11c/CD18, very late antigen [VLA]-4) and the fractalkine receptor (CX3CR1); these receptors recognize ligands (intercellular adhesion molecules [ICAMs], vascular cell adhesion molecule [VCAM]-1, fractalkine) on activated endothelial cells (ECs) and promote vascular migration. Plasma markers of monocyte (soluble [s]CD14, sCD163) and EC (VCAM-1, ICAM-1,2, fractalkine) activation and systemic (tumor necrosis factor receptor [TNFR-I], TNFR-II) and vascular (lipoprotein-associated phospholipase A2 [Lp-PLA2]) inflammation were measured by enzyme-linked immunosorbent assay. Results. Proportions of CD16+ monocyte subsets were increased in HIV+ participants. Among all monocyte subsets, levels of LFA-1 were increased and CX3CR1 levels were decreased in HIV+ participants (P < .01). Levels of sCD163, sCD14, fractalkine, ICAM-1, VCAM-1, TNFR-II, and Lp-PLA2 were also increased in HIV+ participants (P < .05), and levels of sCD14, TNFR-I, and TNFR-II were directly related to ICAM-1 and VCAM-1 levels in HIV+ participants. Expression of CX3CR1 on monocyte subsets was inversely related to plasma Lp-PLA2 (P < .05 for all). Conclusions. Increased proportions of CD16+ monocytes, cells with altered adhesion molecule expression, combined with elevated levels of their ligands, may promote vascular inflammation in HIV infection.


Aids Care-psychological and Socio-medical Aspects of Aids\/hiv | 2016

High levels of self-reported prescription opioid use by HIV-positive individuals

Abigail Norris Turner; Courtney Maierhofer; Nicholas T. Funderburg; Brandon Snyder; Kristi Small; Jan Clark; Jose A. Bazan; Nicole C. Kwiek; Jesse J. Kwiek

ABSTRACT Prescription medication use (other than antiretroviral therapy (ART)) is highly prevalent among people living with HIV. Prescription medications may be used medically or non-medically: non-medical use includes using more medication than prescribed, using medication prescribed to someone else, or using medication for a purpose other than its prescribed use. During 12 weeks in 2014–2015, we characterized medical and non-medical prescription medication use among HIV-positive patients attending an academic medical center (n = 149) and a community clinic (n = 105). Separately for the past year and the past month, these 254 participants self-reported their use of prescription opioids, sedatives, stimulants, anti-anxiety medications, antipsychotic medications, and erectile dysfunction medications. Respondents were largely male (91%), aged 40 or older (61%), identified as gay or bisexual (79%), and were men who have sex with men (85%). ART use was nearly universal (95%). Nearly half (43%) of participants reported medical use of prescription opioids; 11% of the opioid use was reported as non-medical use. Anti-anxiety medication use was also frequent, and differed by site: 41% of community-clinic responders reported medical use of anti-anxiety medications compared to 23% of hospital clinic respondents who reported medical use. Prescription sedative use was also approximately twice as high among community-clinic participants, with medical use reported by 43% of respondents and non-medical use by 12%; in comparison, at the hospital clinic, sedative use was reported by 18% (medical) and 7% (non-medical) of participants. Stimulant use was rare in both sites. No demographic characteristic was significantly associated with medical or non-medical use of any prescription medication. The current focus of many studies on only non-medical prescription medication use not only underestimates the widespread exposure of HIV-positive individuals to these drugs, but may also underestimate potential adverse effects of prescription medications in this population.


Sexually Transmitted Diseases | 2016

Lubricant Use and Rectal Chlamydial and Gonococcal Infections Among Men Who Engage in Receptive Anal Intercourse.

Courtney Maierhofer; Cara E. Rice; Shu-Hua Wang; Karen S. Fields; Melissa Ervin; Abigail Norris Turner

Background Use of lubricants during anal intercourse is very common among men who have sex with men. However, few studies have evaluated associations between specific lubricants and rectal sexually transmitted infections (STIs). Methods Between July 2012 and October 2013, we conducted a cross-sectional study of men who have sex with men recruited from an urban, public sexual health clinic. In a self-administered survey, participants identified the lubricants used and frequency of lubricant use in the previous three months. Among men reporting any receptive anal intercourse (RAI) in the previous 3 months, we used multivariable binomial regression models to analyze associations between recent use of 9 specific lubricants and prevalent rectal chlamydia, rectal gonorrhea, and either rectal infection. Results Twenty-five percent of the 146 participants had rectal chlamydial infection and 21% had rectal gonococcal infection; 37% had either (chlamydial or gonococcal) infection. Three-quarters reported always or almost always using lubricant during recent receptive anal intercourse. After adjustment for age, race, human immunodeficiency virus status, and condom use, Gun Oil (adjusted prevalence ratio [aPR], 1.99; 95% confidence interval [CI], 1.04–3.80) and Slick (aPR, 3.55; 95% CI, 1.38–9.12) were significantly associated with prevalent gonococcal infection. No lubricants were significantly associated with prevalent rectal chlamydia, but in analyses of either rectal infection, precum (aPR, 1.68; 95% CI, 1.06–2.66), Vaseline (aPR, 1.70; 95% CI, 1.10–2.64), and baby oil (aPR, 2.26; 95% CI, 1.43–3.57) were all significantly associated with prevalent rectal infection. Conclusions Several lubricants were significantly associated with increased prevalence of rectal STI. Longitudinal studies are needed to examine any causal relationship between specific lubricants and STI acquisition.


Sexually Transmitted Infections | 2017

P4.02 Effects of a restrictive state law on std/hiv rates in ohio

Abigail Norris Turner; Courtney Maierhofer; Carolette Norwood; Danielle Bessett; Alison Norris

Introduction In recent years, Ohio has enacted multiple laws that impact sexual and reproductive health. In February 2016, a new law came into effect, which prohibits the state from contracting health services with any organisation that performs or promotes abortion. This law blocks funding of organisations such as Planned Parenthood from receiving state funds for activities related to HIV and STD testing and sexual education. Methods We are conducting a rigorous evaluation of the sexual and reproductive health-related consequences of the new law. In an ecologic analysis of state- and county-level data from Ohio for 2015 and 2016, we will compare trends in prevalence of HIV, chlamydia and gonorrhoea (all nationally notifiable conditions) before and after the implementation of the2016 law. We will examine trends by several characteristics, including sex, race/ethnicity, age, education level, insurance status (Ohio is a Medicaid-expansion state under the Affordable Care Act), sexual orientation, urban/rural residence, and other variables. To disentangle the effect of the law from secular trends in HIV/STD, we will compare Ohio’s outcomes to the same outcomes in nearby Illinois. Illinois has similar population characteristics to Ohio but does not have the same legislative environment impacting allocation of funds for reproductive health services. Results Results will be available in summer 2017. In Ohio, we anticipate a decline in the number of HIV and STD tests performed in 2016 compared to 2015, and an increase in the prevalence of each disease in 2016 compared to 2015. We anticipate no meaningful changes in trends across years in Illinois. Conclusion Multiple states across the United States are considering legislation similar to Ohio’s, to restrict the use of state and federal funding by clinical and community organisations that provide HIV/STD care alongside other sexual health services. Determining the HIV/STD-related impacts of such laws is critical to avoid putting men and women at higher risk of disease.


The Journal of Sexual Medicine | 2016

Beyond Anal Sex: Sexual Practices of Men Who Have Sex With Men and Associations With HIV and Other Sexually Transmitted Infections

Cara E. Rice; Courtney Maierhofer; Karen S. Fields; Melissa Ervin; Stephanie T. Lanza; Abigail Norris Turner


Sexually Transmitted Diseases | 2018

Anal sex is more common than having a Twitter account in the United States

Courtney Maierhofer; Kathryn E. Lancaster; Abigail Norris Turner


Journal of Acquired Immune Deficiency Syndromes | 2018

Use of Antiretroviral Therapy During Pregnancy and Adverse Birth Outcomes Among Women Living With HIV-1 in Low- and Middle-Income Countries: A Systematic Review

Jessica Londeree Saleska; Abigail Norris Turner; Courtney Maierhofer; Jan Clark; Jesse J. Kwiek


Sexually Transmitted Infections | 2017

P3.108 Antiretroviral therapy use during pregnancy and adverse birth outcomes among hiv-infected women in low and middle-income countries: a systematic review

Jessica Londeree Saleska; Jesse J. Kwiek; Abigail Norris-Turner; Courtney Maierhofer

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A. Jeanine Abrams

Centers for Disease Control and Prevention

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Amanda Dennison

Ohio Department of Health

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Cecilia B. Kretz

National Center for Immunization and Respiratory Diseases

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