Publications by authors named "P J Das"

Background: While detection of circulating tumor DNA (ctDNA) weeks after surgery is linked to recurrence for other solid tumors, the optimal time point for ctDNA assessment as a prognostic biomarker following chemoradiation for anal cancer is undefined.

Methods: Patients with stages I-III anal cancer treated with chemoradiation between 12/2020-5/2024 were evaluated for HPV ctDNA status at baseline, at the end of chemoradiation, and during surveillance using a droplet digital HPV ctDNA PCR assay targeting HPV E6 and E7 oncogenes for 13 oncogenic HPV types. Median recurrence-free survival (RFS) according to HPV ctDNA status was estimated via Kaplan-Meier and compared using a log-rank test.

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Objective: Polycystic ovary syndrome (PCOS) is a prevalent metabolic disorder with an increased risk for cardiovascular disease (CVD) that is enhanced by obesity. This study sought to determine whether a panel of cardiovascular risk proteins (CVRPs) would be dysregulated in overweight/obese PCOS patients, highlighting potential biomarkers for CVD in PCOS.

Methods: In this exploratory cross-sectional study, plasma levels of 54 CVRPs were analyzed in women with PCOS (n = 147) and controls (n = 97).

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Aqueous zinc-based batteries (AZBs) are gaining widespread attention owing to their intrinsic safety, relatively low electrode potential, and high theoretical capacity. Transition metal dichalcogenides (TMDs) have convenient 2D ion diffusion channels, so they have been identified as promising host materials for AZBs, but face several key challenges such as the narrow interlayer spacing and the lack of in-deep understanding energy storage mechanisms. This review presents a comprehensive summary and discussion of the intrinsic structure, charge storage mechanisms, and key fabrication strategies of TMD-based cathodes for AZBs.

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Background: Menstrual health is critical for women of reproductive age. It is also evident that menstrual disorders have contributed to the increasing burden of non-communicable diseases.

Objective: To our knowledge, no literature review explicitly addresses the prevalence, risk factors, and health-seeking behaviour of menstrual disorders in India.

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