April 2018 Entries

Marriage and Millennials

Millennials and Viagra

Jason K. was 27 the first time he tried to have sex with a woman and couldn’t get an erection. He knew it wasn’t a physiological problem, because he had no problem getting hard at home while watching porn and masturbating, but the embarrassing episode gnawed at him. Jason grew anxious that it could happen again, so he decided to bring it up at his doctor’s appointment a few weeks later…

April 2018 Entries

First Look Inside the Herpes Virus

The herpesvirus family includes herpes simplex virus type 1 (HSV-1), which causes cold sores, and type 2 (HSV-2), which causes genital herpes. Herpesviruses comprise a large DNA genome enclosed in a large and complex protein cage called a capsid (see the Perspective by Heldwein). Dai and Zhou used electron microscopy to determine a high-resolution structure of the HSV-1 capsid bound to the tegument proteins that occupy the space between the capsid and the nuclear envelope. The structure suggests how these components may play a role in viral transport. Yuan et al. describe a higher-resolution structure of an HSV-2 capsid, providing insight into how the shell assembles and is stabilized.

April 2018 Entries

Robotic Sperm

Abstract: Biomolecular motors such as F1–adenosine triphosphate synthase (F1-ATPase) and myosin are similar in size, and they generate forces compatible with currently producible nanoengineered structures. We have engineered individual biomolecular motors and nanoscale inorganic systems, and we describe their integration in a hybrid nanomechanical device powered by a biomolecular motor. The device consisted of three components: an engineered substrate, an F1-ATPase biomolecular motor, and fabricated nanopropellers. Rotation of the nanopropeller was initiated with 2 mM adenosine triphosphate and inhibited by sodium azide.

February 2018 Entries

A new class of drug to treat herpes simplex virus-1 infection

For patients with the herpes simplex-1 virus (HSV-1), there are just a handful of drugs available to treat the painful condition that can affect the eyes, mouth and genitals.If patients develop resistance to these drugs, there are even fewer choices left to treat the infection, which lasts for life. Researchers at the University of Illinois at Chicago have now identified a small drug molecule that can clear the HSV-1 infection in the cells…

 

Organ-on-chip technology enters next stage as experts test hepatitis B virus

Scientists at Imperial College London have become the first in the world to test how pathogens interact with artificial human organs. Artificial human organs, or organ-on-chip technologies, simulate a whole organ’s cell make up and physiology. They act as alternatives to animal models in drug safety testing…

 

Case Report – Induced Lactation in Transgender Woman

A 30-year-old transgender woman who had been receiving feminizing hormone therapy for the past 6 years presented to our clinic with the goal of being able to breastfeed her adopted infant. After implementing a regimen of domperidone, estradiol, progesterone, and breast pumping, she was able to achieve sufficient breast milk volume to be the sole source of nourishment for her child for 6 weeks. This case illustrates that, in some circumstances, modest but functional lactation can be induced in transgender women…

 

Increased 1-year continuation of DMPA among women randomized to self-administration

Self-administration of subcutaneous depot medroxyprogesterone acetate (DMPA-sc) is feasible, acceptable, and effective. Our objective was to compare one-year continuation of DMPA-sc between women randomized to self-administration versus clinic administration…

 

A harm-reduction model of abortion counseling about misoprostol use in Peru with telephone and in-person follow-up

Eighty-six percent of participants took misoprostol; among those taking misoprostol, 89% reported a complete abortion at the time of the survey. Twenty-two percent obtained an aspiration after taking misoprostol and 8% self-reported adverse events including hemorrhage without transfusion, infection, or severe pain. Among women who took misoprostol, 46% reported receiving in-person follow-up (in some cases both telephone and in-person), 34% received telephone only, and 20% did not report receiving any form of follow-up. Those who had in-person follow-up with the counselor were most likely to report a complete abortion (<0.001). Satisfaction with both types of follow-up was very high, with 81%-89% reporting being very satisfied…

 

Comparison of comprehensive and abstinence-only sexuality education in young African American adolescents

The purpose of this study was to identify predictors of sexual behavior and condom use in African American adolescents, as well as to evaluate the effectiveness of comprehensive sexuality and abstinence-only education to reduce adolescent sexual behavior and increase condom use. Participants included 450 adolescents aged 12–14 years in the southern United States. Regression analyses showed favorable attitudes toward sexual behavior and social norms significantly predicted recent sexual behavior, and favorable attitudes toward condoms significantly predicted condom usage. Self-efficacy was not found to be predictive of adolescents’ sexual behavior or condom use. There were no significant differences in recent sexual behavior based on type of sexuality education. Adolescents who received abstinence-only education had reduced favorable attitudes toward condom use, and were more likely to have unprotected sex than the comparison group. Findings suggest that adolescents who receive abstinence-only education are at greater risk of engaging in unprotected sex…

 

 

 

 

January 2018 Entries

Study Shows Male Virgins Can Still Contract HPV

Men who have never engaged in sexual intercourse are still at risk for acquiring HPV, according to a study published recently in the Journal of Infectious Diseases by researchers at The University of Texas Health Science Center at Houston (UTHealth) School of Public Health….

 

The Non-Binary Brain

Misogynists are fascinated by the idea that human brains are biologically male or female. But they’ve got the science wrong…

 

Fraternal birth order effect on sexual orientation explained

Twenty years ago, Ray Blanchard and Anthony Bogaert demonstrated that the probability of a boy growing up to be gay increases for each older brother born to the same mother, the so-called fraternal birth order (FBO) effect. Their first investigation indicated that each older brother increased the probability of being gay by about 33%…

 

Abortion Reversal Class Approved for California Nurses

California nursing regulators have again given the green light to a class teaching nurses about unproven abortion pill “reversal,” marking the third time the oversight agency has reversed course on the continuing ed class…

 

Bad Sex Science in Black Mirror Episode

The science fiction show’s second episode of the season mixed up emergency contraception (EC) and medication abortion. And the internet let the show’s creator, Charlie Brooker, and the episode’s director, Oscar-winner Jodie Foster, know that they’d screwed up…

 

Trump Fires Entire HIV/AIDS Council

\With no explanation, the White House has terminated members of the Presidential Advisory Council on HIV/AIDS amid widespread discontent with President Trump’s approach to the epidemic…

March 2014 Psychology News

Talking About Same-Sex Marriage With Anti-Gay Voters Can Shift Opinions

A study from UCLA and Colombia University found a strong correlation between face to face conversations between gay marriage supporters and opponents, which can result in long lasting shifts in views on marriage equality, even amongst members of the household who did not participate.

Scribd

April 2014 Psychology News

Why Women Fake Orgasms

This study looking at young single women concludes that there are four major reasons women fake orgasms:

  • Altruistic deceit (doing it for the guy to make him feel better)
  • Fear and insecurity (to avoid feeling bad about the experience)
  • Elevated arousal (for her own arousal)
  • Sexual adjournment (wanting it to be over)

Archives of Sexual Behavior

 

Do Girls Really Prefer Pink?

Girls toys are often pinkly hued, but is it a socially inspired choice?

Slate