D-dimer - a multifaceted molecule.

D-dimer, a universally unique marker for fibrin degradation, is generated through the enzymatic interplay of thrombin, factor XIIIa, and plasmin. The emergence of D-dimer-containing fibrin molecules occurs in both intravascular and extravascular spaces during pivotal physiological processes like haemostasis, thrombosis, and tissue repair. Given the inherently physiological nature of fibrin formation and fibrinolysis, basal levels of D-dimer fragments are present in plasma.

Urinary lipoarabinomannan in individuals with sputum-negative pulmonary tuberculosis.

Background Objectives: Tuberculosis (TB) is a major global cause of ill health. Sputum microscopy for confirmation of presumptive pulmonary TB (PTB) has a reportedly low sensitivity of 22-43 per cent for single smear and up to 60 per cent under optimal conditions. National TB Elimination Programme in India recommends the use of cartridge-based nucleic acid amplification test (CBNAAT) and culture for microbiological confirmation in presumptive PTB individuals with sputum smear negative test.

Diabetes mellitus in acute exacerbation of chronic obstructive pulmonary disease - the tip of the iceberg.

COPD is a chronic respiratory disease characterized by systemic inflammation caused primarily by tobacco use, and it is associated with an increased susceptibility to respiratory infections, both viral and bacterial, which are responsible for acute COPD exacerbations (AECOPD). Diabetes mellitus is one of the most common co-morbidities in COPD patients. In our study, we attempted to detect previously undiagnosed diabetes in AECOPD patients who presented to our Institute.