Genetic variation in the CYP17 gene and recurrent spontaneous abortions

Purpose  

The CYP17 gene encodes the enzyme cytochrome P450c17α, which functions at key steps in the synthesis process of human sex steroid hormones. A T/C polymorphism in the 5′ promoter region of the CYP17 gene has been described previously. Serum levels of androgens and estrogens have been shown to be elevated in individuals who carry the C substitution (Α2 allele). We hypothesized that variability in genes that control the sex hormone (estrogens, testosterone) biosynthesis might affect the pregnancy outcome. In the present study, we investigated the possible association between the T/C polymorphism of the promoter of CYP17 gene and the risk of recurrent spontaneous abortions in the Greek population.     

Association of higher costs with symptoms and diagnosis of depression

OBJECTIVES: We examined the relationships among depressive symptoms, physician diagnosis of depression, and charges for care. STUDY DESIGN: We used a prospective observational design. POPULATION: Five hundred eight new adult patients were randomly assigned to senior residents in family practice and internal medicine. OUTCOMES MEASURED: Self-reports of health status assessment (Medical Outcomes Study Short Form-36) and depressive symptoms (Beck Depression Inventory) were determined at study entry and at 1-year follow-up. Physician diagnosis of depression was determined by chart audit; charges for care were monitored electronically. RESULTS: Symptoms of depression and the diagnosis of depression were associated with charges for care. Statistical models were developed to identify predictors for the occurrence and magnitude of medical charges. Neither depressive symptoms nor diagnosis of depression significantly predicted the occurrence of charges in the areas studied, but physician diagnosis of depression predicted the magnitude of primary care and total charges. CONCLUSIONS: A complex relationship exists among depressive symptoms, the diagnosis of depression, and charges for medical care. Understanding these relationships may help primary care physicians diagnose depression and deliver primary care to depressed patients more effectively while managing health care expenditures.     

The impact of obesity on primary care visits

OBJECTIVE: To investigate the influence of patient obesity on primary care physician practice style. RESEARCH METHODS AND PROCEDURES: This was a randomized, prospective study of 509 patients assigned for care by 105 primary care resident physicians. Patient data collected included sociodemographic information, self-reported health status (Medical Outcomes Study Short Form-36), evaluation for depression (Beck Depression Index), and satisfaction. Height and weight were measured to calculate the BMI. Videotapes of the visits were analyzed using the Davis Observation Code (DOC). RESULTS: Regression equations were estimated relating obesity to visit length, each of the 20 individual DOC codes, and the six DOC Physician Practice Behavior Clusters, controlling for patient health status and sociodemographics. Obesity was not significantly associated with the length of the visit, but influenced what happened during the visit. Physicians spent less time educating obese patients about their health (p = 0.0062) and more time discussing exercise (p = 0.0075). Obesity was not related to discussions regarding nutrition. Physicians spent a greater portion of the visit on technical tasks when the patient was obese (p = 0.0528). Mean pre-visit general satisfaction for obese patients was significantly lower than for non-obese patients (p = 0.0069); however, there was no difference in post-visit patient satisfaction. DISCUSSION: Patient obesity impacts the medical visit. Further research can promote a greater understanding of the relationships between obese patients and their physicians.     

Pathologic features and clinical significance of "backwash" ileitis in ulcerative colitis

Patients with ulcerative colitis (UC) may develop inflammation in the distal ileum thought to be due to "backwash" of cecal contents ("backwash ileitis"). However, a systematic analysis of ileal changes in UC has never been performed, and the prevalence and criteria for "backwash" ileitis have not been defined. The aim of this study was to evaluate the prevalence and spectrum of inflammatory changes in the ileum in patients with UC and to correlate ileal changes with outcome after total proctocolectomy and ileal pouch-anal anastomosis. Routinely processed ileocolonic resection specimens from 200 consecutive patients with clinically and pathologically confirmed UC were evaluated for a wide variety of pathologic features in the ileum and colon. The ileal data were correlated with both the clinical features and the pathologic findings in the colon. Follow-up data were obtained to confirm absence of Crohn's disease and to evaluate outcome of ileo-anal pouches. Overall, 34 of 200 (17%) UC patients had inflammatory changes in the ileum (male/female ratio, 16/18; mean age, 42 years); 32 of 34 (94%) had pancolitis, which was significantly higher than the rate of pancolitis (39%) in patients without ileal disease (N = 166) (P < 0.001), but there were no other differences between patients with or without ileal pathology. In the colon, 22 of 34 (65%) patients had severe activity. Ileal changes included villous atrophy and crypt regeneration without increased inflammation (N = 3), increased neutrophilic and mononuclear inflammation in the lamina propria (N = 6), patchy cryptitis and crypt abscesses (N = 21) and focal superficial surface erosions (N = 4), some with pyloric metaplasia (N = 2 of 4). In general, the severity of ileal changes paralleled the severity of colonic activity. However, 2 of 4 (50%) patients with superficial erosions in the ileum had subtotal or left-sided colitis only, and had only mild colonic activity. Other cases showed only mild to moderate colonic activity and patchy or discontinuous involvement of the distal ileum. Upon follow-up of patients with erosions (mean, 48.5 months; range, 26-102 months), none developed manifestations of Crohn's disease anywhere in the gastrointestinal tract. The presence of inflammatory changes in the ileum had no effect on the prevalence of pouch complications or on the occurrence of dysplasia or cancer. Ileal changes in UC are not uncommon (prevalence, 17%), are generally mild in nature (villous atrophy, increased inflammation, scattered crypt abscesses), and are not associated with an increased rate of ileo-anal pouch complications, dysplasia, or carcinoma. In some cases, our findings are consistent with a backwash etiology. However, rarely, ileal erosions may occur in patients without cecal involvement, which may indicate that other pathogenetic mechanisms should be considered in the etiology of ileitis in UC patients.     

The EXPOLIS study: implications for exposure research and environmental policy in Europe

Exposure analysis is a crucial part of effective management of public health risks caused by pollutants and chemicals in our environment. During the last decades, more data required for exposure analysis has become available, but the need for direct population based measurements of exposures is still clear. The current work (i) describes the European EXPOLIS study, designed to produce this kind of exposure data for major air pollutants in Europe, and the database created to make the collected data available for researchers (ii) reviews the exposure analysis conducted and results published so far using these data and (iii) discusses the implications of the results from the point of view of research and environmental policy in Europe. Fine particle (with 37 elements and black smoke), nitrogen dioxide, volatile organic compounds (30 compounds) and carbon monoxide inhalation exposures and exposure-related questionnaire data were measured in seven European cities during 1996-2000. The EXPOLIS database has been used for exposure analysis of these pollutants for 4 years now and results have been published in approximately 30 peer-reviewed journal papers, demonstrating the versatility, usability and scientific value of such a data set. The multipollutant exposure data from the same subjects in the random population samples allows for analyses of the determinants, microenvironments and sources of exposures to multipollutant mixtures and associations between the different air pollutants. This information is necessary and useful for developing effective policies and control strategies for healthier environment.     

Physician-elder interaction in community family practice

OBJECTIVE: To determine whether outpatient visits by elders seeing community family physicians differ in length or content from visits by younger patients; socioemotional preferences predict visit content; and satisfaction correlates with visit content differentially across age. METHODS: In a multimethod cross-sectional study of 84 community family practices in northeastern Ohio, 3453 adult patient visits with 138 community family physicians were observed; 2362 of these patients completed self-report questionnaires. Three age groups were compared: 18 to 64, 65 to 74, and over 74 years. Length and content of the physician-patient encounter was determined using the Davis Observation Code (DOC); satisfaction was assessed using the MOS 9-item Visit Rating Scale. RESULTS: Controlling for reason for visit and demographics, visit length averaged 10.7 minutes for each group. Visit content differed significantly on 13 of 20 DOC codes between one of the older groups and the younger group; in 4 instances, content varied between the 2 older groups. Although visit content varied as predicted by socioemotional theory, no consistent patterns of association between visit content and satisfaction emerged. DISCUSSION: Older patient visits differ from those of younger patients as might be predicted by socioemotional selectivity theory; however, there was little association of visit content with patient satisfaction.     

Determinants of physician discussion regarding tobacco and alcohol abuse

The U.S. Preventive Services Task Force recommends that clinicians screen adults for tobacco and alcohol abuse and provide appropriate interventions. This study employed direct observation and interactional analysis of medical visits to investigate factors associated with physician discussion of tobacco and alcohol use with patients. New adult patients were randomly assigned to primary care at a university medical center. Videotapes of the visits were analyzed using the Davis observation code. Regression equations related discussions of substance use (alcohol and other substances), smoking, and health promotion to patient health status, depression, age, education, income, gender, alcohol abuse, and current smoking. Patients reporting better physical health were more likely to have their physicians employ a practice style emphasizing addiction behaviors (p = .0186). Substance use (p = .0117) and health promotion counseling (p = .0130) occurred more frequently with younger patients. Physicians discussed substance use (p = < .0001) and addiction (p < .0001) more often with male patients. Problem drinkers were more likely to have physicians address their substance use (p = .0069) and focus on addiction behaviors (p = .0017). Physicians adopted an addiction-oriented practice style (p < .0001), addressing substance use (p = .0009) and smoking (p < .0001), more often with patients who smoked. Physicians appear more apt to discuss these behavioral risk factors with healthier, younger, male patients who abuse tobacco and alcohol.