Inflammatory Bowel Disease and Skin Cancer: An Assessment of Patient Risk Factors, Knowledge, and Skin Practices

The mediating role of competence, autonomy, and relatedness in the activation and maintenance of sports participation behavior

This study aims to explore the complex and multifaceted relationship between Behavioral Activation and Behavioral Maintenance in sports participation, delving into the underlying mechanisms to provide practical insights into how individuals initiate and sustain engagement in sports activities. Utilizing a combination of convenience sampling and snowball sampling methods, 378 sports participants from over ten provinces and cities in China were selected as survey subjects, and an intermediary model concerning the activation and maintenance of sports participation behavior was constructed. Discriminant validity and mediation effect analyses were conducted using SPSS and AMOS 23.0. The results indicate that Behavioral Activation indirectly influences Behavioral Maintenance through Competence (ad = 0.39), with a 95% confidence interval [0.201, 0.642], excluding 0. Behavioral Activation also indirectly influences Behavioral Maintenance through Autonomy (be = 0.23), with a 95% confidence interval [0.109, 0.421], excluding 0. However, Behavioral Activation indirectly influences Behavioral Maintenance through Relatedness (cf. = 0.09), with a 95% confidence interval [-0.068, 0.336], which includes 0. The study reveals that both Competence and Autonomy significantly mediate the activation and maintenance of sports participation behavior among athletes. However, Relatedness does not play a significant mediating role in the activation and maintenance of sports participation behavior among the participants.

Bicubic regression analysis a novel approach for estimation of physicochemical properties of skin cancer drugs through degree based entropy

Skin cancer poses a significant risk to the healthcare system worldwide and is projected to increase substantially over the next two decades, particularly if not detected in its early stages. The primary aim of this study is to construct a quantitative structure-property relationship (QSPR) by correlating calculated entropies with topological indices and specific physical-chemical properties of pharmaceuticals, in order to enhance their usefulness. The bicubic regression model is constructed through degree-based topological entropies to perform the QSPR analysis for the prediction of physiochemical properties like polar surface area, complexity, molar refractivity, boiling point, and polarity of skin cancer drugs. It is also examined that degree-based entropies provide best-fit models for skin cancer physiochemical properties. We inspected five physio-chemical properties of these anticancer drugs and found this methodology suitable for predicting best-fit approximations regardingR 2 value. It is expected that this approach will be very favourable to examining problems related to mathematical chemistry.

Inflammatory Bowel Disease and Skin Cancer: A Two-Sample Mendelian Randomization Analysis

Background: At present, numerous clinical studies suggest a correlation between inflammatory bowel disease (IBD) and skin cancer. However, some articles present differing views that IBD does not increase the risk of skin cancer. The presence of potential reverse causality and residual confounding is inherent in conventional observational studies. Thus, this study used a two-sample Mendelian randomization (MR) study design to estimate the causal effect of IBD on the risk of skin cancer, including cutaneous malignant melanoma (CMM, also named melanoma skin cancer) and nonmelanoma skin cancer (NMSC). Design: In this study, a two-sample MR analysis was used to estimate the causal effect of IBD on skin cancer outcomes. The inverse-variance weighted (IVW) method was used as the main MR analysis, with multiple sensitivity analyses conducted to assess the robustness of findings. Results: In examining the association between IBD and NMSC, all p-values of the IVW methods were found to be <0.05, providing evidence for a causal effect of IBD on an increased risk of NMSC. However, IVW for IBD on CMM yielded p-values >0.05, indicating no causal relationship between IBD and CMM. These findings were consistent across other MR methods, with no evidence of pleiotropy or heterogeneity. Sensitivity analyses confirmed the robustness of our results. Conclusion: Using MR analysis, we found evidence for a causal effect of genetic liability for IBD on an increased risk of NMSC. However, our study did not find sufficient evidence to support a significant impact of IBD on CMM outcomes.

Risk of skin cancers in thiopurines-treated and thiopurines-untreated patients with inflammatory bowel disease: A systematic review and meta-analysis

BACKGROUND AND AIM

The thiopurines are effective in the management of patients with inflammatory bowel disease (IBD), but the association between thiopurines use and the risk of skin cancer (including nonmelanoma skin cancer [NMSC] and melanoma skin cancer) has already been sufficiently reported. However, the results of these studies are inconsistent, and thus, the objective of our analysis was to explore whether thiopurines can lead to an excess risk of skin cancer in IBD patients.

METHODS

MEDLINE, EMBASE, and the Cochrane Library were searched to identify relevant studies that evaluated the risk of skin cancer in IBD patients treated with thiopurines. A random effects meta-analysis was conducted to calculate the pooled incidence rate ratios as well as risk ratios (RRs). Subgroup analysis was performed to explore the potential source of heterogeneity.

RESULTS

Thirteen studies comprising 149 198 participants were included. The result suggested that thiopurines significantly increased the risk of overall skin cancer in IBD patients (random effects: RR = 1.80, 95% confidence interval [CI] 1.14-2.87, P = 0.013), among which NMSC showed an excess risk associated with thiopurines use (random effects: RR = 1.88, 95% CI 1.48-2.38, P < 0.001) while no increased risk was observed with respect to melanoma skin cancer (random effects: RR = 1.22, 95% CI 0.90-1.65, P = 0.206). Subgroup analysis regarding sample size and geographic distribution in skin cancer and follow-up duration in NMSC reached statistical significance, while other subgroups showed no significance.

CONCLUSION

Exposition of thiopurines in patients with IBD is associated with a higher risk of skin cancer. Routine skin screening and daily skin protective practice are recommended for these patients.

Women's Health in Inflammatory Bowel Disease

About half of all inflammatory bowel disease (IBD) patients are women. It is important that physicians are aware of gender-specific needs women with IBD may have. This review covers general and specific women's health issues related to their IBD. It is intended to be practical and give a brief overview of topics including body image, menstruation, contraception, cervical cancer screening, preconception counseling, anxiety, depression, pregnancy, breastfeeding, menopause, skin exams, vaccines, laboratory monitoring and bone health.

The risk of non-melanoma skin cancer in New Zealand in inflammatory bowel disease patients treated with thiopurines

BACKGROUND AND AIM

New Zealand (NZ) has one of the highest rates of non-melanoma skin cancers (NMSCs) in the world. Thiopurine use in inflammatory bowel disease (IBD) patients has been shown to increase NMSC risk. This study aimed to investigate the possible increase of NMSC risk in thiopurine-treated IBD patients in NZ despite the high background rate.

METHODS

Inflammatory bowel disease patients treated with thiopurines and healthy controls were recruited across two different latitude centers in NZ. Consented participants completed a questionnaire to identify additional risk factors and were examined for suspicious skin lesions. These were photographed, and the pictures were evaluated by a dermatologist. Data were compared between centers and between groups with NMSC incidence and thiopurine-associated relative risks estimated.

RESULTS

One hundred seventy-one thiopurine-exposed IBD patients and 201 controls were recruited. Twenty seven of 390 photographs (26 participants) showed suspicious lesions (17 exposed, 9 controls) as determined by the dermatologist. Estimated NMSC incidence was 24.7-34.3/1000 patient-years (thiopurine-exposed, depending on classification of unconfirmed suspicious lesions) and 7-14/1000 patient-years (control). The relative risk of NMSC among thiopurine exposed was 2.38-2.97 (P ≤ 0.014), which remained significant after individually adjusting for potential confounders. We estimated the NMSC risk to increase 5.4-6.6% per 6 months of thiopurine use (P < 0.001). Low compliance in avoiding NMSC risk factors in the exposed group was observed.

CONCLUSIONS

We found a twofold to threefold increase in NMSC incidence in IBD patients treated with thiopurines in NZ, despite the high background incidence rate.