Last week, the Office of Women’s Careers at Massachusetts General Hospital showed that with a little bit of financial help, young women scientists who temporarily leave the lab can successfully reclaim their careers when they come back.

When I was in graduate school at the University of Wisconsin in Madison, the biochemistry department had 30 faculty members — and only 2 were women.

The situation seems to have improved somewhat and 8 of the 37 principal investigators are women. The graduate student pool, in contrast, was half women when I was there and is at least that now.

You know where this is heading. Women are overwhelmingly the majority among biology majors in college, many make it to graduate school but then drop out along the way to the top. There are a hundred opinions — some, like Larry Summers’, quite controversial — about why that happens. And we’d like to hear your views about that too.

But one indisputable factor is that when women scientists leave the lab to have a baby, it’s very difficult for them to maintain research productivity. There are a scattered few programs to help women at this vulnerable point in their careers, which we wrote about in 2004 in the news feature, A lab of her own.

The MGH program, described in a study in the Archives of Internal Medicine, gives two-year “bridge grants” of up to $50,000 to junior researchers who also care for young children. In the first nine years of the program, 90% of the recipients have remained at the MGH and more than half have received academic promotions at Harvard Medical School.

The amount is modest to be sure, but it helps the recipients — 40 so far — find practical solutions to their quandary. For example, Karen K. Miller, a 1999 recipient, applied her grant toward hiring a research assistant who continued Miller’s work on anorexia nervosa while she was away. It also shows an institution’s commitment to helping them with their careers — something many women scientists say is sorely needed.

Good news is that Harvard University, which recently found itself a woman president, is already exploring a similar model to help women at the university.