Nonischemic or Dual Cardiomyopathy in Patients With Coronary Artery Disease.

BACKGROUND: Randomized trials in obstructive coronary artery disease (CAD) have largely shown no prognostic benefit from coronary revascularization. Although there are several potential reasons for the lack of benefit, an underexplored possible reason is the presence of coincidental nonischemic cardiomyopathy (NICM). We investigated the prevalence and prognostic significance of NICM in patients with CAD (CAD-NICM). METHODS: We conducted a registry study of consecutive patients with obstructive CAD on coronary angiography who underwent contrast-enhanced cardiovascular magnetic resonance imaging for the assessment of ventricular function and scar at 4 hospitals from 2004 to 2020. We identified the presence and cause of cardiomyopathy using cardiovascular magnetic resonance imaging and coronary angiography data, blinded to clinical outcomes. The primary outcome was a composite of all-cause death or heart failure hospitalization, and secondary outcomes were all-cause death, heart failure hospitalization, and cardiovascular death. RESULTS: Among 3023 patients (median age, 66 years; 76% men), 18.2% had no cardiomyopathy, 64.8% had ischemic cardiomyopathy (CAD+ICM), 9.3% had CAD+NICM, and 7.7% had dual cardiomyopathy (CAD+dualCM), defined as both ICM and NICM. Thus, 16.9% had CAD+NICM or dualCM. During a median follow-up of 4.8 years (interquartile range, 2.9, 7.6), 1116 patients experienced the primary outcome. In Cox multivariable analysis, CAD+NICM or dualCM was independently associated with a higher risk of the primary outcome compared with CAD+ICM (adjusted hazard ratio, 1.23 [95% CI, 1.06-1.43]; P=0.007) after adjustment for potential confounders. The risks of the secondary outcomes of all-cause death and heart failure hospitalization were also higher with CAD+NICM or dualCM (hazard ratio, 1.21 [95% CI, 1.02-1.43]; P=0.032; and hazard ratio, 1.37 [95% CI, 1.11-1.69]; P=0.003, respectively), whereas the risk of cardiovascular death did not differ from that of CAD+ICM (hazard ratio, 1.15 [95% CI, 0.89-1.48]; P=0.28). CONCLUSIONS: In patients with CAD referred for clinical cardiovascular magnetic resonance imaging, NICM or dualCM was identified in 1 of every 6 patients and was associated with worse long-term outcomes compared with ICM. In patients with obstructive CAD, coincidental NICM or dualCM may contribute to the lack of prognostic benefit from coronary revascularization.

The impact of genital lichen sclerosus and lichen planus on quality of life: A review.

Background: Lichen sclerosus (LS) and lichen planus (LP) are inflammatory diseases that demonstrate genital and extra-genital manifestations. Genital involvement may result in pruritus, sexual dysfunction, pain, and irritation. It is intuitive that the severity of symptoms may result in functional impairment and emotional distress, leading to a reduction in quality of life (QoL). Objective: Investigate the current literature on the impact of genital LS and LP on QoL. Methods: A literature review was performed using PubMed and results were summarized. Articles published between 1994 and 2020 were screened and reviewed by both the authors. Results: These diseases have been assessed with dermatological assessments, such as the Skindex-29 and the Dermatology Life Quality Index, general health surveys such as the Short Form-12 questionnaire, and mental health instruments including the Beck Depression Inventory, and others; these instruments consistently demonstrate impaired QoL. It follows that treatment may reduce these symptoms. Interventions, such as photodynamic therapy, have demonstrated improvement in the depressive symptoms that impact QoL. Although both females and males experience a reduction in QoL related to these diseases, they experience the symptomatology differently. Through interviewing, male patients were more likely to report no symptoms compared with female patients, while female patients were also more likely to report worse QoL in the work-school domain of the Dermatology Life Quality Index as compared with male patients. Limitations: Few studies have addressed the effect of disease severity or treatment on QoL. Conclusions: Understanding how genital LS and LP contribute to reduced QoL for patients is critical for health care providers to better prioritize treatment strategies. Future prospective studies should investigate how QoL correlates with disease severity and response to treatment.

A Rabbit Monoclonal Antibody against the Antiviral and Cancer Genomic DNA Mutating Enzyme APOBEC3B.

The DNA cytosine deaminase APOBEC3B (A3B) is normally an antiviral factor in the innate immune response. However, A3B has been implicated in cancer mutagenesis, particularly in solid tumors of the bladder, breast, cervix, head/neck, and lung. Here, we report data on the generation and characterization of a rabbit monoclonal antibody (mAb) for human A3B. One mAb, 5210-87-13, demonstrates utility in multiple applications, including ELISA, immunoblot, immunofluorescence microscopy, and immunohistochemistry. In head-to-head tests with commercial reagents, 5210-87-13 was the only rabbit monoclonal suitable for detecting native A3B and for immunohistochemical quantification of A3B in tumor tissues. This novel mAb has the potential to enable a wide range of fundamental and clinical studies on A3B in human biology and disease.