New Delhi [India], May 2 (ANI): In a landmark advancement in the field of rare disease diagnostics, scientists at the All India Institute of Medical Sciences (AIIMS), New Delhi, have developed a revolutionary diagnostic method for Primary Ciliary Dyskinesia (PCD), a rare and often underdiagnosed genetic disorder that impacts the respiratory system.
Utilizing transmission electron microscopy (TEM), this novel approach offers a staggering 640-fold improvement in precision over conventional diagnostic techniques. According to Dr. Subhash Chandra Yadav of the Electron Microscope Facility, Department of Anatomy at AIIMS Delhi, this is the first diagnostic method of its kind available in India.
“This type of diagnosis is the first of its kind in India, and no other hospital or research laboratory in the country currently offers this diagnostic capability using electron microscopy,” Dr. Yadav stated.
He further revealed that the technique developed by AIIMS has gained international recognition. “Our method for diagnosing PCD has now been internationally acknowledged as an innovative approach for identifying PCD and other ciliary diseases. The findings have been published in Microscopy and Microanalysis, a leading journal from the University of Oxford,” he added.
The breakthrough research, spearheaded by Dr. Yadav and Professor Kana Ram Jat of the Department of Paediatrics, is detailed in the publication titled “An Innovative TEM-Based Ultrastructural Imaging Methodology for the Diagnosis of Respiratory Ciliary Disorders.”
According to an official statement by AIIMS Delhi, the newly developed diagnostic method significantly enhances accuracy by identifying structural abnormalities in motile cilia in nearly 70% of suspected cases—an effectiveness surpassing even that of state-of-the-art whole-genome sequencing. The methodology was validated in a clinical setting involving 200 patients, with definitive diagnoses confirmed in 135 cases.
Beyond diagnosing Primary Ciliary Dyskinesia, the scope of this technology encompasses a wide range of rare ciliary disorder-associated conditions. These include respiratory anomalies, renal cystic disease, blindness, neural tube defects, intellectual disabilities, skeletal abnormalities such as polydactyly and short limb deformities, ectodermal defects, situs inversus (where internal organs are positioned in a mirror image), and infertility.
“What distinguishes this methodology is its refined and integrated workflow,” the statement noted. “From careful sample collection and fixation to ultra-thin tissue sectioning and high-resolution TEM imaging, every step has been optimized to reveal the most minute structural defects. This comprehensive protocol enhances detection capabilities by nearly 640 times compared to existing methods.”
Medical professionals across the country have hailed this development as a transformative milestone in genetic diagnostics. The innovation is expected to facilitate faster, more accurate diagnoses, support the development of personalized treatment strategies, and enhance overall patient care. Moreover, it opens new avenues for a deeper understanding of the pathophysiology behind ciliary disorders.
This pioneering initiative by AIIMS researchers not only positions India at the forefront of rare disease diagnostics but also brings renewed hope to patients and families navigating the complexities of genetic illnesses.
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