Monthly Archives: May 2013

Memorial Day Weekend

Apologies for the radio silence.  A lot of (good) stuff has been going on.  Travel, birthdays, talks, work, etc.  I have a bunch of drafts in various stages, but no time to polish and post.  Despite being a short week, it has been crazy, and we’re off to New Hampshire for a wedding early in the morning.

Thus, here are some photos from our Memorial Day Weekend.  We spent it in the Catskills.  Even though the weather didn’t really cooperate, we still enjoyed being up there.  It was our first trip up of the season, so we did our best to enjoy being away from it all (there’s no cell phone reception or electricity up there!).


Note Mabel pouting in the bottom left photo. She was upset because she could not find any large puddles to jump in.

We did manage to get into the woods, catch creepy crawlies, see lots of deer, and marvel at how lush and green everything is.

Even in the rain and the cold, it’s my favorite place.


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Wordless Wednesday: Cultured

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Pros and Cons of Coffee

I’ve written before about how scientists consume the most coffee of all professions, here.  I’ve also written about my own descent to coffee-dependence, here.

So, when this popped up in my FB feed from IFLS, I was intrigued.

As is my way, I couldn’t share without vetting at least some of the info.  For some more actual data and links to primary literature from which the factoids on the above infographic are drawn, see here.

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Moms can recognize their newborn by touch alone

While I was working on last week’s Transition to New Motherhood post, I came across this study:

Parturient women can recognize their infants by touch.  Kaitz M et al, Developmental Psychology, 1992

Unfortunately the full text is behind a paywall I don’t have access to, but you can read the first page here and a very brief summary here.

It turns out, brand new mothers can identify their newborns by touch alone, after only spending an hour with them after giving birth.

From what I can glean from the abstract and descriptions online, women were allowed to spend time with their infants, unaware of what the researchers were going to ask of them. It turns out that the majority of women were able to identify their own baby if they had spent a minimum of 1 hour with it since giving birth.  (And this paper would suggest fathers are similarly capable)

I can’t say I was that surprised.  When I delivered Mable, Mac accompanied her to the nursery while the surgeon completed my C-section.  Afterwards, I was in the recovery room with a nurse, and I hear a baby cry in the hallway.  I was a total mess- 36 hours of labor, a C-section, epidural, vomiting, etc.  However, when I heard the cry I said (to the nurse?  to myself?), “That’s my baby.”  The nurse replied, “Oh, honey.  All the babies sound the same.”

Moments later, this guy and this little gal appeared in the doorway.

mabelcry mcphd

My guy.  My gal.

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Transition to New Parenthood/Evidence Based Parenting Discussion Storified

Earlier this week I posted my contribution to this month’s Evidence-Based Parenting Blog Carnival about the transition to motherhood.


Today, several of the contributors, all evidence-based parents (many scientists, science communicators, and researchers- all parents), got together on Twitter for a live discussion of some of the issues brought up in the Carnival.  We used the hashtag #parentscience and discussed issues ranging from sleep to swaddling to pain management and bonding.

If you missed the live discussion, don’t worry.  My fellow Carnival of Evidence-Based Parenting (CEBP) contributor, Matt Shipman Storified it!

You can catch up on what you missed here.  And you can contribute to the ongoing discussion on the CEBP Facebook page here (recent topics include the debatable happiness of new parents and the difficulties facing doctors and parents when caring for interest infants).

If you are ready to trade the parenting hype for the some legit, evidence-based parenting, read up!

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You might be a #scimom if… ROY G. BIV

You might be a #scimom if you notice when rainbow colored toys (or clothes) don’t conform to ROY G. BIV.

For whatever anal-retentive reason, it irks me when colors are arranged so as to be a ‘rainbow’ yet they are not in the order in which they appear in an actual rainbow.

For example- who designed this?

Roy G. Biv does not approve.

Roy G. Biv approved. Red then orange then yellow then green then blue.

They obviously knew what they were doing and adhered to the spectrum?

But what about this dress?  Would it be so hard to have switched the green and light blue ruffles to it would go in wavelength order?


This tunic has the colored ruffles in the wrong order.

Seriously children’s fashion designers and toy makers!  Get with the spectrum.

So, am I alone?  Do you see a rainbow and think ROY G. BIV?


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Sex-assignment surgery in infants/young children- when will we learn?

I read this story today and my heart broke a little bit:  Couple sues over adopted son’s early sex-assignment surgery.

A South Carolina couple sued doctors and state social workers on Tuesday for subjecting a 16-month-old child born with both male and female genitalia to what they say was medically unnecessary and irreversible sex-assignment surgery while the toddler was in foster care.  The state and federal lawsuits — believed by the couple’s lawyers to be the first of their kind in the United States — argue that doctors should not have performed surgery to make the child’s body appear to be female when they knew they could not predict how gender would develop.  The child, now 8, has shown strong signs of identifying as male and recently began living as a boy, according to Pam and Mark Crawford, who adopted him after the surgery. Source.

The child in the above story had ambiguous genetalia and was “‘intersex’ / had a ‘disorder of sex development (DSD)’ which is “defined as any congenital condition in which development of chromosomal, gonadal or anatomic sex is atypical” (Source).  The child was treated with surgery to make the genitals appear female in February 2005.  In August 2006, the American Academy of Pediatrics released a revised Consensus Statement on Management of Intersex Disorders.

While the AAPs recommendations vary based on the exact medical diagnosis, the take-home message is: do what’s best in the long run, not what makes everyone feel most comfortable in the short run, maintain function as much as possible, don’t do anything irreversible that is not required for physical health early on.  Some quotes to give you an idea of what they are recommending:

-“Emphasis is on functional outcome rather than a strictly cosmetic appearance. It is generally felt that surgery that is performed for cosmetic reasons in the first year of life relieves parental distress and improves attachment between the child and the parents; the systematic evidence for this belief is lacking.”

-Certain procedures should be delayed until “adolescence when the patient is psychologically motivated and a full partner in the procedure.”

-“Surgical management in DSD should also consider options that will facilitate the chances of fertility.” (Source)

I wonder what would have happened if this recommendation had been made prior to that child’s surgery- would the outcome have been different? Would he not be facing another surgery to undo the damage?
I may be unusual in this regard, but the possibility of having a child with a disorder of sexual determination/intersex was something I considered when I was pregnant.  From news reports, studies, documentaries, I knew that if I had a child with such a condition, I would opt to delay surgery until the child could decide for him/herself what was the appropriate course of action.  The story of the tragic and troubled life of David Reimer particularly touched me.

Surgery is a permanent change, is irreversible.  What was the young child in that news story robbed of?  We cannot tell from the information being released, but at the very least, this child was robbed of a penis.

We may not discuss it much, but these types of conditions are not as rare as you might think.  Estimates of the frequency of surgeries to “normalize” genital appearance are as high as 1 in 500 (Source).

The types of conditions are varied and numerous- from chromosomal abnormalities (XXY) to enzyme deficiencies (click here for more info).

Scoring External Genitalia. A. The external genitalia can be objectively scored using the Prader staging system which provides an overall score for the appearance of the external genitalia. B. Alternatively, each individual feature of the genitalia (phallus size, labioscrotal fusion, site of the gonads and location of urethral meatus) can be individually scored to obtain the External Masculinisation Score (EMS). Adapted from Ahmed et al., BJU Int. 2000;85:120–4. (Source)

Scoring External Genitalia. A. The external genitalia can be objectively scored using the Prader staging system which provides an overall score for the appearance of the external genitalia. B. Alternatively, each individual feature of the genitalia (phallus size, labioscrotal fusion, site of the gonads and location of urethral meatus) can be individually scored to obtain the External Masculinisation Score (EMS). Adapted from Ahmed et al., BJU Int. 2000;85:120–4. (Source)

The dilemma in how to treat these children is what happens if you choose the wrong gender.  What if you get it wrong?

Numerous experts in the field have remarked on the lack of long-term data on how accurate doctors and parents are at choosing the correct gender.

More than 90% of 46XX CAH patients and all 46XY CAIS assigned female in infancy identify as females. … Approximately 60% of 5α-reductase (5αRD2)-deficient patients assigned as female in infancy and virilising at puberty (and all assigned male) live as males… Amongst patients with PAIS, androgen biosynthetic defects, and incomplete gonadal dysgenesis, there is dissatisfaction with the sex of rearing in ∼25% of individuals whether raised as male or female... In the case of mixed gonadal dysgenesis (MGD), factors to consider include prenatal androgen exposure, testicular function at and after puberty, phallic development and gonadal location. Individuals with cloacal exstrophy reared as female show variability in gender-identity outcome, but >65% appear to live as women. Source.

Look at those numbers.  In the first case, 10% of patients were assigned the ‘wrong’ gender (i.e. they did not identify themselves as the gender that was chosen for them).  In the second, 60% of patients were assigned as female in infancy went on the live as males.  The third statistic, 25% of individuals were ‘dissatisfied with the sex of rearing.’ And the last stat, around 35% of individuals reared as females live as males.

If I was a betting individual, I wouldn’t bet on those odds.  As a scientist, I see those percentages as indicating that not enough is known about the system to make an accurate prediction of the outcome.  As a human being, I mourn for those who lost a part of themselves to surgery that they cannot get back- a part that makes it harder for doctors and surgery to match their outsides with their self-image.  As a parent, I imagine how dangerous it would be to make such a decision at the risk of choosing incorrectly.

As I was researching this topic, I came across the following statement that struck me as odd:

Gender reassignment surgery is not carried out prior to adulthood in young gender dysphorics without DSD. There is international clinical consensus that the risks of early surgical intervention far outweigh the potential benefits in virtually all cases. (Source)

Gender dysphoria is when a person feels their biological sex is mismatched relative to the gender they identify as being.  The quote above indicates that surgery to bring biological sex in line with gender identity should be delayed until adulthood.  Perhaps the same caution should be applied when deciding for infants and young children with disorders of sex determination.

My heart goes out to MC (the child from the story) and his family.  May the grownups looking out for him- doctors, parents, lawyers- all do their best, and do what is best for him.  May they not fail him twice.


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