Objective. To assess the role of Fas‐mediated apoptosis in the salivary glands of patients with primary Sjögren's syndrome (SS).
Methods. Expression of Fas, Fas ligand (FasL), and bcl‐2 in salivary gland biopsy material was detected in situ by immunohistochemical staining and reverse transcriptase‐polymerase chain reaction. DNA fragmentation in apoptotic cells was assessed by the enzymatic incorporation of labeled nucleotides (digoxigenin‐dUTP).
Results. The acinar epithelial cells in SS were Fas+ and FasL+, and these cells died by apoptosis. The majority of infiltrating lymphocytes in SS were Fas+ and bcl‐2+, while few lymphocytes expressed FasL. In situ detection of apoptosis showed minimal cell death of lymphocytes, particularly in dense periductal foci. Lymphocytic cell death was significantly lower (P < 0.0001) in these foci compared with that in the interstitium.
Conclusion. Infiltrating lymphocytes in the focal lesions of the salivary glands of patients with SS are blocked in their ability to commit to apoptosis, even though they may express Fas. The presence of bcl‐2 in these cells may explain their inability to undergo apoptosis. The acinar epithelial cells, in contrast, may undergo Fas‐mediated apoptosis. These results suggest that the Fas death pathway may be an important mechanism leading to the glandular destruction found in SS.
Not surprisingly, prevention and evidenced-based treatments are the most cost-effective way of reducing the use of medical resources and improving and prolonging productive lifestyles. Future prospective studies need to be conducted to more accurately understand the financial impact of limb salvage.
The primary aim of this study was to evaluate the impact of gender on health-related quality of life (HRQOL) using a generic (Short Form-36 [SF-36]) and region-specific (Foot and Ankle Ability Measure [FAAM]) health measurement tool among a matched cohort of male and female patients with diabetes-related foot complications. The HRQOL of 240 patients with diabetic foot disease was measured using the SF-36 and the FAAM surveys. A total of 120 male patients were matched with 120 female patients with the same primary diagnosis, age, type, and duration of diabetes and insulin use. The SF-36 physical component summary (PCS) and mental component summary (MCS) scores were calculated using orthogonal and oblique rotation methods. The median age of the respondents was 54 years (interquartile range = 46-61). No differences in patient characteristics were found between genders. Among the SF-36 subscales, women reported significantly worse physical function ( P = .014) and bodily pain ( P = .021) scores with a trending decrease in general health score ( P = .067). Subsequently, women had worse orthogonal ( P = .009) and oblique PCS scores ( P = .036) than men. However, orthogonal ( P = .427) or oblique ( P = .140) MCS scores did not differ between groups. No significant differences in FAAM scores with respect to gender were appreciated. Our findings suggest that in patients with diabetic foot disease, women tend to report lower physical HRQOL compared with men. In efforts to increase compliance, providers should recognize the impact of gender on patients' perceptions of foot-related complications of diabetes. This knowledge may improve outcomes by adapting more individualized and gender-specific approaches to patients.
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