Objective: To evaluate gender differences in mentee’s preference for mentoring styles and topics in academic medicine in Japan.
Methods: We conducted a cross-sectional questionnaire survey of mentees at 6 graduate schools of medicine in Japan from December 2011 through January 2012. The study participants were 1700 Japanese-speaking graduate students and postdoctoral fellows. The primary outcome was the percentage of respondents who desired to be mentored with a particular style or topic.
Results: A total of 676 （227 women） mentees responded to the survey. Women were less likely than men to prefer a hierarchical mentoring relationship （men, 82%; women, 71%; p＝0.001） but were more likely to desire a mentor for career consultation （men, 51%; women, 64%; p＝0.001）. Women were more likely than men to want guidance in developing a research portfolio （men, 85%; women, 90%; p＝0.04）, in computer skills／statistical skills （men, 68%; women, 81%; p＝0.001）, and in long-term career planning （men, 38%; women, 50%; p＝0.003）.
Conclusion: Women mentees in Japan express different preferences for mentoring styles and topics from men. Mentors in Japan must take these differences into consideration.

AIMTo investigate the associations of autosomal and X-chromosome homologs of the RNA-binding-motif (RNA-binding-motif on the Y chromosome, RBMY) gene with non-obstructive azoospermia (NOA), as genetic factors for NOA may map to chromosomes other than the Y chromosome.

METHODSGenomic DNA was extracted using a salting-out procedure after treatment of peripheral blood leukocytes with proteinase K from Japanese patients with NOA (n=67) and normal fertile volunteers (n=105). The DNA were analyzed for RBMX by expressed sequence tag (EST) deletion and for the like sequence on chromosome 9 (RBMXL9) by microsatellite polymorphism.

RESULTSWe examined six ESTs in and around RBMX and found a deletion of SHGC31764 in one patient with NOA and a deletion of DXS7491 in one other patient with NOA. No deletions were detected in control subjects. The association study with nine microsatellite markers near RBMXL9 revealed that D9S319 was less prevalent in patients than in control subjects, whereas D9S1853 was detected more frequently in patients than that in control subjects.

CONCLUSIONWe provide evidence that deletions in or around RBMX may be involved in NOA. In addition, analyses of markers in the vicinity of RBMXL9 on chromosome 9 suggest the possibility that variants of this gene may be associated with NOA. Although further studies are necessary, this is the first report of the association between RBMX and RBMXL9 with NOA.

Adult ; Chromosomes, Human, Pair 9 ; genetics ; Chromosomes, Human, X ; genetics ; Expressed Sequence Tags ; Heterogeneous-Nuclear Ribonucleoproteins ; genetics ; Humans ; Male ; Microsatellite Repeats ; genetics ; Nuclear Proteins ; genetics ; Oligospermia ; genetics ; Polymorphism, Genetic ; RNA-Binding Proteins ; genetics