Full Text Journal Articles by
Author Heather Armstrong

Advertisement

Find full text journal articles






Mathematical modelling of the influence of serosorting on the population-level HIV transmission impact of pre-exposure prophylaxis.

Linwei Wang, Nasheed Moqueet, Anna Simkin, Jesse Knight, Huiting Ma, Nathan J Lachowsky, Heather L Armstrong, Darrell H S Tan, Ann N Burchell, Trevor A Hart, David M Moore, Barry D Adam, Derek R Macfadden, Stefan Baral, Sharmistha Mishra,

<h4>Objectives</h4>HIV pre-exposure prophylaxis (PrEP) may change serosorting patterns. We examined the influence of serosorting on the population-level HIV transmission impact of PrEP, and how impact could change if PrEP users stopped serosorting.<h4>Design</h4>We developed a compartmental HIV transmission model parameterized with bio-behavioural and HIV surveillance data among MSM in Canada.<h4>Methods</h4>We separately ... Read more >>

AIDS (AIDS (London, England))
[2021, 35(7):1113-1125]

Cited: 1 time

View full text PDF listing >>



Research news in clinical context.

Heather L Armstrong, Weiming Tang, Kristine Shields,

Sex Transm Infect (Sexually transmitted infections)
[2021, 97(4):247-248]

Cited: 0 times

View full text PDF listing >>



Advertisement

Undetectable or Unknown? A Longitudinal Event-Level Analysis of Disclosure of HIV Serostatus and Undetectability Among Gay, Bisexual, and Other Men Who have Sex with Men (gbMSM) in Metro Vancouver.

Jordan M Sang, Lu Wang, David M Moore, Nicanor Bacani, Terry Howard, Everett Blackwell, Allan Lal, Heather L Armstrong, Kiffer G Card, Richard Crosby, Eric A Roth, Robert S Hogg, Nathan J Lachowsky,

We examined temporal trends and factors associated with reporting partner's serostatus and viral load among a sample of gay, bisexual and other men who have sex with men (gbMSM) in Vancouver, Canada. Participants were recruited using respondent-driven sampling and we collected prospective cohort data from 09/2014 to 02/2017 using a ... Read more >>

AIDS Behav (AIDS and behavior)
[2021, 25(8):2630-2643]

Cited: 0 times

View full text PDF listing >>



Longitudinal Event-Level Sexual Risk and Substance Use among Gay, Bisexual, and Other Men Who Have Sex with Men.

Jordan M Sang, Zishan Cui, Paul Sereda, Heather L Armstrong, Gbolahan Olarewaju, Allan Lal, Kiffer G Card, Eric A Roth, Robert S Hogg, David M Moore, Nathan J Lachowsky,

(1) Background: Condomless anal sex and substance use are associated with STI risk among gay, bisexual, and other men who have sex with men (gbMSM). Our first study objective was to describe event-level sexual risk and substance use trends among gbMSM. Our second study objective was to describe substances associated ... Read more >>

Int J Environ Res Public Health (International journal of environmental research and public health)
[2021, 18(6):]

Cited: 0 times

View full text PDF listing >>



Use of HIV pre-exposure prophylaxis among urban Canadian gay, bisexual and other men who have sex with men: a cross-sectional analysis of the Engage cohort study.

Joseph Cox, Herak Apelian, Erica E M Moodie, Marc Messier-Peet, Trevor A Hart, Daniel Grace, David M Moore, Nathan J Lachowsky, Heather L Armstrong, Jody Jollimore, Shayna Skakoon-Sparling, Ricky Rodrigues, Darrell H S Tan, Mathieu Maheu-Giroux, Syed W Noor, Bertrand Lebouché, Cecile Tremblay, Gbolahan Olarewaju, Gilles Lambert, ,

<h4>Background</h4>In Canada, gay, bisexual and other men who have sex with men (GBM) are disproportionately affected by HIV. Our objective was to describe access to HIV pre-exposure prophylaxis (PrEP) and identify factors associated with not using PrEP among self-reported HIV-negative or HIV-unknown GBM.<h4>Methods</h4>This was a cross-sectional analysis of the Engage ... Read more >>

CMAJ Open (CMAJ open)
[2021, 9(2):E529-E538]

Cited: 0 times

View full text PDF listing >>



Research news in clinical context.

Joseph D Tucker, Monica Desai, Heather Armstrong,

Sex Transm Infect (Sexually transmitted infections)
[2021, 97(1):1-2]

Cited: 0 times

View full text PDF listing >>



The Multifaceted Roles of Diet, Microbes, and Metabolites in Cancer.

Heather Armstrong, Michael Bording-Jorgensen, Eytan Wine,

Many studies performed to date have implicated select microbes and dietary factors in a variety of cancers, yet the complexity of both these diseases and the relationship between these factors has limited the ability to translate findings into therapies and preventative guidelines. Here we begin by discussing recently published studies ... Read more >>

Cancers (Basel) (Cancers)
[2021, 13(4):]

Cited: 0 times

View full text PDF listing >>



Crystal Methamphetamine Use and Initiation among Gay, Bisexual, and Other Men Who Have Sex with Men Living with HIV in a Treatment as Prevention Environment.

Sean P Colyer, David M Moore, Zishan Cui, Julia Zhu, Heather L Armstrong, Matthew Taylor, Joshua Edward, Terry Howard, Chad Dickie, Gbolahan Olarewaju, Julio S G Montaner, Robert S Hogg, Eric A Roth, Nathan J Lachowsky,

<h4>Background</h4>Risk compensation in an HIV Treatment as Prevention (TasP) environment may increase high-risk sexual and substance use behaviors among people living with HIV. <i>Objective:</i> To examine recent crystal methamphetamine (CM) use/initiation in a longitudinal cohort of gay, bisexual, and other men who have sex with men (GBMSM) living with HIV ... Read more >>

Subst Use Misuse (Substance use & misuse)
[2020, 55(14):2428-2437]

Cited: 1 time

View full text PDF listing >>



Loneliness and self-rated physical health among gay, bisexual and other men who have sex with men in Vancouver, Canada.

Megan E Marziali, Heather L Armstrong, Kalysha Closson, Taylor McLinden, Lu Wang, Justin Barath, Marianne Harris, Eric A Roth, David M Moore, Nathan J Lachowsky, Robert S Hogg, Jordan M Sang, Kiffer G Card,

<h4>Background</h4>Due to stigma and discrimination, gay, bisexual and other men who have sex with men (gbMSM) potentially carry a heightened burden of loneliness. This analysis investigates loneliness among gbMSM and its relationship with self-rated physical health, along with the mediating effect of depression.<h4>Methods</h4>Participants were recruited using respondent-driven sampling into the ... Read more >>

J Epidemiol Community Health (Journal of epidemiology and community health)
[2020, 74(7):553-559]

Cited: 2 times

View full text PDF listing >>



What Does Research Tell Us About Women's Experiences, Motives and Perceptions of Masturbation Within a Relationship Context?: A Systematic Review of Qualitative Studies.

Dilan Kılıç Onar, Heather Armstrong, Cynthia A Graham,

This systematic review provides an overview of what qualitative research has revealed about partner-related factors around women's masturbation and explores how these factors relate to women's behavior, perceptions, and motives toward masturbation. Eleven studies were identified and secondary thematic analysis was used for synthesis. Women's perceptions often focus on the ... Read more >>

J Sex Marital Ther (Journal of sex & marital therapy)
[2020, 46(7):683-716]

Cited: 0 times

View full text PDF listing >>



Factors Associated with Cessation or Reduction of Methamphetamine Use among Gay, Bisexual, and Other Men Who Have Sex with Men (gbMSM) in Vancouver Canada.

Brooke Cheng, Jordan M Sang, Zishan Cui, Nicanor Bacani, Heather L Armstrong, Julia Zhu, Julius Elefante, Gbolahan Olarewaju, Kiffer G Card, Everett Blackwell, Nathan J Lachowsky, Robert S Hogg, Eric A Roth, David M Moore,

<i>Background:</i> Methamphetamine (MA) use among gay, bisexual, and other men who have sex with men (gbMSM) is a pervasive issue, associated with detrimental health outcomes. We identified factors associated with discontinuation or reduction in MA among a subset of gbMSM reporting frequent (at least weekly) use, with a specific focus ... Read more >>

Subst Use Misuse (Substance use & misuse)
[2020, 55(10):1692-1701]

Cited: 0 times

View full text PDF listing >>



Influence of serosorting and intervention-mediated changes in serosorting on the population-level HIV transmission impact of pre-exposure prophylaxis among men who have sex with men: a mathematical modelling study

Linwei Wang, Nasheed Moqueet, Anna Simkin, Jesse Knight, Huiting Ma, Nathan Lachowsky, Heather Armstrong, Darrell Tan, Ann Burchell, Trevor Hart, David Moore, Barry Adam, Derek MacFadden, Stefan Baral, Sharmistha Mishra,

<h4>ABSTRACT</h4> <h4>Background</h4> HIV pre-exposure prophylaxis (PrEP) may change serosorting patterns. We examined the influence of serosorting on the population-level HIV transmission impact of PrEP, and how impact could change if PrEP users stopped serosorting. <h4>Methods</h4> We developed a compartmental HIV transmission model parameterized with bio-behavioural and HIV surveillance data among ... Read more >>

()
[, :]

Cited: 0 times

View full text PDF listing >>



Not All Fibers Are Born Equal; Variable Response to Dietary Fiber Subtypes in IBD.

Heather Armstrong, Inderdeep Mander, Zhengxiao Zhang, David Armstrong, Eytan Wine,

Diet provides a safe and attractive alternative to available treatment options in a variety of diseases; however, research has only just begun to elucidate the role of diet in chronic diseases, such as the inflammatory bowel diseases (IBD). The chronic and highly debilitating IBDs, Crohn disease and ulcerative colitis, are ... Read more >>

Front Pediatr (Frontiers in pediatrics)
[2020, 8:620189]

Cited: 5 times

View full text PDF listing >>



Population-Level Sexual Mixing According to HIV Status and Preexposure Prophylaxis Use Among Men Who Have Sex With Men in Montreal, Canada: Implications for HIV Prevention.

Linwei Wang, Nasheed Moqueet, Gilles Lambert, Daniel Grace, Ricky Rodrigues, Joseph Cox, Nathan J Lachowsky, Syed W Noor, Heather L Armstrong, Darrell H S Tan, Ann N Burchell, Huiting Ma, Herak Apelian, Jesse Knight, Marc Messier-Peet, Jody Jollimore, Stefan Baral, Trevor A Hart, David M Moore, Sharmistha Mishra,

Using cross-sectional survey data (Engage, 2017-2018) from 1,137 men who have sex with men, ≥16 years old, in Montreal, we compared observed human immunodeficiency virus (HIV) seroconcordance in previous-6-months' sexual partnerships with what would have been observed by chance if zero individuals serosorted. Of 5 recent partnerships where both individuals ... Read more >>

Am J Epidemiol (American journal of epidemiology)
[2020, 189(1):44-54]

Cited: 5 times

View full text PDF listing >>



Escape expectancies and sexualized substance use among gay, bisexual, and other men who have sex with men.

Kiffer G Card, Heather L Armstrong, Lu Wang, Nicanor Bacani, David M Moore, Eric A Roth, Robert S Hogg, Nathan J Lachowsky,

McKirnan's Cognitive Escape Theory (1996) is often characterized by the hypothesis that drugs are used during sex by gay, bisexual, and other men who have sex with men (gbMSM) to relieve internal cognitive conflict over safe-sex norms and sexual desire. We examined how McKirnan's Cognitive Escape Scale (CES) is related ... Read more >>

AIDS Care (AIDS care)
[2020, 32(12):1489-1497]

Cited: 0 times

View full text PDF listing >>



Controlled Trial of Two Incremental Milk-Feeding Rates in Preterm Infants.

Jon Dorling, Jane Abbott, Janet Berrington, Beth Bosiak, Ursula Bowler, Elaine Boyle, Nicholas Embleton, Oliver Hewer, Samantha Johnson, Edmund Juszczak, Alison Leaf, Louise Linsell, Kenny McCormick, William McGuire, Omar Omar, Christopher Partlett, Mehali Patel, Tracy Roberts, Ben Stenson, John Townend, ,

<h4>Background</h4>Observational data have shown that slow advancement of enteral feeding volumes in preterm infants is associated with a reduced risk of necrotizing enterocolitis but an increased risk of late-onset sepsis. However, data from randomized trials are limited.<h4>Methods</h4>We randomly assigned very preterm or very-low-birth-weight infants to daily milk increments of 30 ... Read more >>

N Engl J Med (The New England journal of medicine)
[2019, 381(15):1434-1443]

Cited: 16 times

View full text PDF listing >>



Vesicouterine Fistula and Fetus in Bladder: A Case Report.

Heather Armstrong, Paul Thistle,

<h4>Background</h4>Vesicouterine fistulas are the rarest of all urogenital fistulas, with most cases occurring after cesarean section.<h4>Case</h4>A 38-year-old woman in rural Zimbabwe presented at 20 weeks gestation with a suspected fetus in the urinary bladder by transabdominal ultrasonography. This finding was confirmed intraoperatively together with a vesicouterine fistula. Cesarean section 20 ... Read more >>

J Obstet Gynaecol Can (Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC)
[2020, 42(5):634-636]

Cited: 0 times

View full text PDF listing >>



Nigericin Promotes NLRP3-Independent Bacterial Killing in Macrophages.

Heather Armstrong, Michael Bording-Jorgensen, Richard Chan, Eytan Wine,

Altered microbiota has been associated with a number of diseases, including inflammatory bowel diseases, diabetes, and cancer. This dysregulation is thought to relate the host inflammatory response to enteric pathogens. Macrophages play a key role in host response to microbes and are involved in bacterial killing and clearance. This process ... Read more >>

Front Immunol (Frontiers in immunology)
[2019, 10:2296]

Cited: 2 times

View full text PDF listing >>



Longitudinal Event-Level Analysis of Gay and Bisexual Men's Anal Sex Versatility: Behavior, Roles, and Substance Use.

Lindsay Shaw, Lu Wang, Zishan Cui, Ashleigh J Rich, Heather L Armstrong, Nathan J Lachowsky, Paul Sereda, Kiffer G Card, Gbolahan Olarewaju, David Moore, Robert Hogg, Eric Abella Roth,

Gay and bisexual Men Who Have Sex with Men (GBM) are sexually unique in that they can practice penile-anal sex versatility, i.e. engage in insertive and receptive anal sex. Individual-level versatility is extensively researched both as a sexual behavior linked to HIV/STI transmission, and as a GBM identity that can ... Read more >>

J Sex Res (Journal of sex research)
[2019, 56(9):1136-1146]

Cited: 0 times

View full text PDF listing >>



Substance Use as a Mechanism for Social Inclusion among Gay, Bisexual, and Other Men Who Have Sex with Men in Vancouver, Canada.

Blake W Hawkins, Heather L Armstrong, Sarah Kesselring, Ashleigh J Rich, Zishan Cui, Paul Sereda, Terry Howard, Jamie I Forrest, David M Moore, Nathan J Lachowsky, Robert S Hogg, Eric A Roth,

<i>Background</i>: Previous research demonstrates that substance use preferences and social-sexual environments are highly interrelated for gay, bisexual, and other men who have sex with men (gbMSM). <i>Objective</i>: We conducted a qualitative study to explore the socio-cultural context of substance use among local gbMSM communities in Metro Vancouver, Canada. <i>Methods</i>: Twenty ... Read more >>

Subst Use Misuse (Substance use & misuse)
[2019, 54(12):1945-1955]

Cited: 2 times

View full text PDF listing >>



Generational differences in sexual behaviour and partnering among gay, bisexual, and other men who have sex with men.

Giselle Hunt, Lu Wang, Nicanor Bacani, Kiffer Card, Paul Sereda, Nathan Lachowsky, Eric Roth, Robert Hogg, David Moore, Heather Armstrong,

<h4>Introduction</h4>Given that different generations of gay, bisexual, and other men who have sex with men (gbMSM) have been influenced by substantially different life course events and cultural contexts, we explored differences in sexual behaviour between millennials, Gen-Xers, and baby boomers.<h4>Methods</h4>Sexually active gbMSM from Metro Vancouver, ≥16 years, were recruited using ... Read more >>

Can J Hum Sex (The Canadian journal of human sexuality)
[2019, 28(2):215-225]

Cited: 0 times

View full text PDF listing >>



HIV leadership programming attendance is associated with PrEP and PEP awareness among young, gay, bisexual, and other men who have sex with men in Vancouver, Canada.

Kalysha Closson, Sarah Chown, Heather L Armstrong, Lu Wang, Nicanor Bacani, Darren Ho, Jody Jollimore, Gbolahan Olarewaju, David M Moore, Eric A Roth, Robert S Hogg, Nathan J Lachowsky,

<h4>Background</h4>Young gay, bisexual, and other men who have sex with men (YGBM) may have reduced engagement and knowledge of HIV care and biomedical HIV prevention strategies, such as pre-exposure prophylaxis (PrEP), post-exposure prophylaxis (PEP), and Treatment as Prevention (TasP), compared with adult GBM. We sought to understand differences in HIV ... Read more >>

BMC Public Health (BMC public health)
[2019, 19(1):429]

Cited: 0 times

View full text PDF listing >>



"Condoms are … like public transit. It's something you want everyone else to take": Perceptions and use of condoms among HIV negative gay men in Vancouver, Canada in the era of biomedical and seroadaptive prevention.

Benjamin J Klassen, Karyn Fulcher, Sarah A Chown, Heather L Armstrong, Robert S Hogg, David M Moore, Eric A Roth, Nathan J Lachowsky,

<h4>Background</h4>The emergence of biomedical and seroadaptive HIV prevention strategies has coincided with a decline in condom use among gay men.<h4>Methods</h4>We undertook a social ecological analysis of condom use and perceptions using nineteen semi-structured interviews with HIV negative gay men in Vancouver, Canada who used HAART-based prevention strategies.<h4>Results</h4>Contributors to inconsistent condom ... Read more >>

BMC Public Health (BMC public health)
[2019, 19(1):120]

Cited: 1 time

View full text PDF listing >>



HIV Testing Among a Representative Community Sample of Gay, Bisexual, and Other Men Who Have Sex with Men in Vancouver, Canada.

Heather L Armstrong, Lu Wang, Julia Zhu, Nathan J Lachowsky, Kiffer G Card, Jason Wong, Jody Jollimore, Joshua Edward, Eric A Roth, Robert S Hogg, David M Moore,

Earlier HIV diagnosis allows for improved treatment outcomes and secondary prevention. It is recommended that all individuals know their HIV status and that those at higher risk test more frequently. Using a representative community sample of gay, bisexual, and other men who have sex with men (GBMSM), we aimed to: ... Read more >>

AIDS Behav (AIDS and behavior)
[2019, 23(2):347-358]

Cited: 3 times

View full text PDF listing >>



Integration of Genomic and Transcriptional Features in Pancreatic Cancer Reveals Increased Cell Cycle Progression in Metastases.

Ashton A Connor, Robert E Denroche, Gun Ho Jang, Mathieu Lemire, Amy Zhang, Michelle Chan-Seng-Yue, Gavin Wilson, Robert C Grant, Daniele Merico, Ilinca Lungu, John M S Bartlett, Dianne Chadwick, Sheng-Ben Liang, Jenna Eagles, Faridah Mbabaali, Jessica K Miller, Paul Krzyzanowski, Heather Armstrong, Xuemei Luo, Lars G T Jorgensen, Joan M Romero, Prashant Bavi, Sandra E Fischer, Stefano Serra, Sara Hafezi-Bakhtiari, Derin Caglar, Michael H A Roehrl, Sean Cleary, Michael A Hollingsworth, Gloria M Petersen, Sarah Thayer, Calvin H L Law, Sulaiman Nanji, Talia Golan, Alyssa L Smith, Ayelet Borgida, Anna Dodd, David Hedley, Bradly G Wouters, Grainne M O'Kane, Julie M Wilson, George Zogopoulos, Faiyaz Notta, Jennifer J Knox, Steven Gallinger,

We integrated clinical, genomic, and transcriptomic data from 224 primaries and 95 metastases from 289 patients to characterize progression of pancreatic ductal adenocarcinoma (PDAC). Driver gene alterations and mutational and expression-based signatures were preserved, with truncations, inversions, and translocations most conserved. Cell cycle progression (CCP) increased with sequential inactivation of ... Read more >>

Cancer Cell (Cancer cell)
[2019, 35(2):267-282.e7]

Cited: 38 times

View full text PDF listing >>



Advertisement


Disclaimer

1.1153 s