Publications by authors named "Rukmini Mridula Kandadai"

• mutations can present as asymmetric parkinsonism mimicking idiopathic Parkinson's disease,• mutation must be considered in Early onset Parkinson's disease even with a negative family history.•Parkinsonism with mutations has shown good to moderate response to dopamine.

View Article and Find Full Text PDF

Progressive supranuclear palsy (PSP) has emerged as a key area of interest among researchers worldwide, including those in India, who have actively studied the disorder over the past several decades. This review meticulously explores the extensive range of Indian research on PSP up to the present and offers insights into both current initiatives and potential future directions for managing PSP within the region. Historical research contributions have spanned 80 publications from 1974 to 2023, encompassing diverse themes from clinical phenotyping and historical analysis to isolated investigative studies and therapeutic trials.

View Article and Find Full Text PDF

Background: Neuronal ceroid lipofuscinosis (NCL) is a rare hereditary lysosomal storage disorder causing neuronal loss and progressive neurodegeneration. variants cause varied phenotypic presentations.

Case Report: A 49-year-old male presented with late adult-onset progressive focal right lower limb dystonia.

View Article and Find Full Text PDF

Background: The Levodopa Equivalent Daily Dosage (LEDD) calculation algorithms help in capturing and harmonization of Parkinson's Disease (PD) therapies. Analyzing these updates is essential for validating their effectiveness.

Objective: To assess updated LEDD conversion factors in capturing the newer therapies in PD and therapy modules in different geographical cohorts.

View Article and Find Full Text PDF

Dystonia deafness syndrome (DDS) is a rare syndrome characterized by childhood onset sensorineural deafness followed by adult-onset dystonia. We here report the first case of DDS from India caused by gene mutation presented with deafness, generalized dystonia and scoliosis who showed improvement after Deep brain stimulation.

View Article and Find Full Text PDF
Article Synopsis
  • Recent research has pinpointed over 20 genes linked to Parkinson's disease (PD), yet most studies have concentrated on European populations, leaving a gap in understanding PD genetics in other regions, particularly South Asia.
  • The study recruited 674 PD patients, mostly under 50 years old, and 1,376 control subjects from India to investigate genetic risk factors, finding significant results in the SNCA region that aligns with European PD studies.
  • Notably, cases with specific gene mutations had lower overall genetic risk scores and the research identifies a link to the BSN gene, previously associated with neurodegenerative diseases, marking the largest genetic study of PD in South Asia and highlighting the need for further research in this area.
View Article and Find Full Text PDF

We have recently published the notion of the "vitals" of Parkinson's, a conglomeration of signs and symptoms, largely nonmotor, that must not be missed and yet often not considered in neurological consultations, with considerable societal and personal detrimental consequences. This "dashboard," termed the Chaudhuri's vitals of Parkinson's, are summarized as 5 key vital symptoms or signs and comprise of (a) motor, (b) nonmotor, (c) visual, gut, and oral health, (d) bone health and falls, and finally (e) comorbidities, comedication, and dopamine agonist side effects, such as impulse control disorders. Additionally, not addressing the vitals also may reflect inadequate management strategies, leading to worsening quality of life and diminished wellness, a new concept for people with Parkinson's.

View Article and Find Full Text PDF

Background: Movement abnormalities pertaining to balance, posture, and gait are observed in Parkinson's disease patients. Gait characteristics vary widely and their analysis has been performed traditionally in gait labs. Freezing and festination usually occur at an advanced stage of the disease and are associated with reduced quality of life.

View Article and Find Full Text PDF

The presence of dyskinesia is the most common side effect of chronic administration of levodopa in Parkinson's disease (PD) subjects. Genetic polymorphisms in levodopa metabolizing gene, catechol-O-methyl transferase (COMT), is shown to influence the inter-individual variability in drug response and adverse events. In the present study, the association of COMT rs6269, rs4633, rs4818, and rs4680 polymorphisms and haplotypes on pharmacokinetics and adverse events with levodopa was investigated in 150 PD patients.

View Article and Find Full Text PDF

Parkinson's disease (PD) is a genetically heterogeneous neurodegenerative disease with poorly defined environmental influences. Genomic studies of PD patients have identified disease-relevant monogenic genes, rare variants of significance, and polygenic risk-associated variants. In this study, whole genome sequencing data from 90 young onset Parkinson's disease (YOPD) individuals are analyzed for both monogenic and polygenic risk.

View Article and Find Full Text PDF

We selected several "imaging pearls" presented during the Movement Disorder Society (MDS) Video Challenge for this review. While the event, as implicated by its name, was video-centered, we would like to emphasize the important role of imaging in making the correct diagnosis. We divided this anthology into two parts: genetic and acquired disorders.

View Article and Find Full Text PDF

Dementia with Lewy bodies (DLB) research has seen a significant growth in international collaboration over the last three decades. However, researchers face a challenge in identifying large and diverse samples capable of powering longitudinal studies and clinical trials. The DLB research community has begun to focus efforts on supporting the development and harmonization of consortia, while also continuing to forge networks within which data and findings can be shared.

View Article and Find Full Text PDF

Paraneoplastic cerebellar degeneration (PCD) is an immune-mediated neurological disease characterized by adaptive immune response against onconeural antigens physiologically expressed in the cerebellum. It is characterized by presence of highly specific onconeural autoantibodies such as anti-Yo, anti-Hu, anti-Ri, and anti-Ma2 in the serum and cerebrospinal fluid as diagnostic biomarkers. Antiamphiphysin autoantibody-related paraneoplastic encephalitis is a less commonly seen autoimmune neurological disorder usually presenting as stiff person syndrome.

View Article and Find Full Text PDF

Background: Literature shows that home confinement during coronavirus disease 2019 (COVID-19) pandemic has significantly affected sleep. However, such information regarding subjects having Parkinson's disease (PD) is unavailable.

Methods: This cross-sectional study was conducted using a questionnaire, developed and validated by experts.

View Article and Find Full Text PDF

Over the past two decades, our understanding of Parkinson's disease (PD) has been gleaned from the discoveries made in familial and/or sporadic forms of PD in the Caucasian population. The transferability and the clinical utility of genetic discoveries to other ethnically diverse populations are unknown. The Indian population has been under-represented in PD research.

View Article and Find Full Text PDF

Background: Deep brain stimulation (DBS) is an accepted modality of treatment in patients with Parkinson's disease (PD). Although DBS was approved in advanced PD, it is being done in early PD as well. It was mainly developed to help the patients of PD to overcome the adverse motor effects associated with treatment and treatment failure.

View Article and Find Full Text PDF

Background: and purpose: Neuron specific enolase (NSE) is an established biomarker of neuronal damage. It is not clear how much seizures contribute to the neuronal damage, morbidity or mortality in critically ill neurology patients. The aim of this study is to determine the impact of seizures on neuronal injury in critically ill neurology patients by using neuron specific enolase as a biomarker.

View Article and Find Full Text PDF

Background: Neuromyelitis Optica spectrum disorders (NMOSD) are one of the most common CNS demyelinating disorders as they will present with disabling recurrent demyelinating attacks. Hence, it is of paramount importance to diagnose early, and early diagnoses and intervention will prevent further relapses associated with NMOSD. New international consensus criteria have been proposed and studies validating its application towards diagnoses of NMOSD in south Asian population are meagre.

View Article and Find Full Text PDF
Article Synopsis
  • Sjogren's syndrome (SS) is an autoimmune disease that can affect various organs, including the peripheral nervous system, leading to different types of neuropathy symptoms.
  • A study analyzed 21 SS patients with peripheral neuropathy over six years, revealing that most had neuropathy as their first symptom, with specific patterns such as mononeuropathy multiplex and ganglionopathy being common.
  • Key diagnostic tools included serology tests for specific antibodies, Schirmer's test for eye function, and nerve biopsies, which helped distinguish SS from other conditions.
View Article and Find Full Text PDF

Background: Symptomatic Intracerebral hemorrhage (sICH) is a serious complication of recombinant tissue-plasminogen activator (rt-PA) therapy for acute ischemic stroke (AIS).

Objective: To estimate the prevalence and predictors of sICH in patients after receiving IV rt-PA for AIS.

Material And Methods: Consecutive patients of AIS thrombolysed between January 2010 and June 2016 in a University hospital in Hyderabad (India) were studied prospectively for sICH and it's various variables compared with the control group without sICH to determine any sigificantant difference.

View Article and Find Full Text PDF