Association between temporomandibular disorders and obesity

Psychological stress can induce altered eating patterns, and studies have indicated that there is a correlation between temporomandibular disorder (TMD) and psychological stress. This study investigated the relationship between TMD and body mass index (BMI) in a large representative sample of the South Korean population using data from the Korea National Health and Nutrition Examination Survey (KNHANES). Men and women with TMD showed decreased prevalence of abdominal obesity. Women with TMD had lower age, lower BMI, lower metabolic syndromic waist circumference, lower prevalence of metabolic syndrome, and lower prevalence of diabetes compared with the group without TMD. However, males with TMD didn't show any statistically significant difference between BMI, and metabolic syndromic waist circumference compared with the group without TMD, although there were similar tendencies in the female subject groups. Overall, TMD was associated with decreased BMI and abdominal obesity in women.

Encounters with pharmaceutical sales representatives among practicing internists

BACKGROUND

Although pharmaceutical sales representatives provide physicians with information on new products, these encounters have rarely been studied in practice settings. We examined these interactions among practicing internists and assessed whether prior residency policies limiting pharmaceutical sales representative access affected the subsequent behavior of practitioners.

METHODS

We conducted a mail survey of the internal medicine staffs of a medical school hospital and two affiliated community hospitals. A second request was sent to nonresponders. After the second mailing, a random sample of nonresponders was compared with a similar sample of respondents. Multivariate odds ratios (OR) and 95% confidence intervals (CI) were estimated with logistic regression.

RESULTS

Of the 346 (40%) internists who responded, 22% were women and 60% were trained in university hospitals. There were no differences in gender, subspecialization, or type of training when survey responders and nonresponders were compared. Two hundred eighty-seven (83%) physicians had met with pharmaceutical sales representatives within the previous year, of whom 248 (86%) had received drug samples. Having had a policy that limited access to pharmaceutical sales representatives during residency did not affect the subsequent likelihood of seeing these representatives (P = 0.20) or accepting samples in practice (P = 0.99). Those describing themselves as busy practitioners were significantly less likely to abstain from meeting pharmaceutical sales representatives (OR = 0.2, 95% CI: 0.1 to 0.6, P <0.001). Those with very frequent contacts (>10 times/month) were virtually all busy practitioners.

CONCLUSIONS

Encounters between physicians and pharmaceutical sales representatives are common in internal medicine practice, especially in busy offices. Policies designed to limit pharmaceutical sales representative access during residency do not appear to affect the subsequent likelihood of meeting with pharmaceutical sales representatives or accepting samples.

Identification of potential target genes for Adr1p through characterization of essential nucleotides in UAS1

Adr1p is a regulatory protein in the yeast Saccharomyces cerevisiae that binds to and activates transcription from two sites in a perfect 22-bp inverted repeat, UAS1, in the ADH2 promoter. Binding requires two C2H2 zinc fingers and a region amino terminal to the fingers. The importance for DNA binding of each position within UAS1 was deduced from two types of assays. Both methods led to an identical consensus sequence containing only four essential base pairs: GG(A/G)G. The preferred sequence, TTGG(A/G)GA, is found in both halves of the inverted repeat. The region of Adr1p amino terminal to the fingers is important for phosphate contacts in the central region of UAS1. However, no base-specific contacts in this portion of UAS1 are important for DNA binding or for ADR1-dependent transcription in vivo. When the central 6 bp were deleted, only a single monomer of Adr1p was able to bind in vitro and activation in vivo was severely reduced. On the basis of these results and previous knowledge about the DNA binding site requirements, including constraints on the spacing and orientation of sites that affect activation in vivo, a consensus binding site for Adr1p was derived. By using this consensus site, potential Adr1p binding sites were located in the promoters of genes known to show ADR1-dependent expression. In addition, this consensus allowed the identification of new potential target genes for Adr1p.