Arunkumar Ramachandran

Dr. Arunkumar Ramachandran

orcid

Research Focus & Metrics

Academic Career Length

22Years (2005-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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6 January 2021 in The American Journal of Tropical Medicine and Hygiene
Verified
Journal Article
Open access
NKNarayanasamy Krishnasamy
Narayanasamy Krishnasamy
MNMurugan Natarajan
Murugan Natarajan
ARArunkumar Ramachandran
Arunkumar Ramachandran
JTJeromie Wesley Vivian Thangaraj
Jeromie Wesley Vivian Thangaraj
TETheranirajan Etherajan
Theranirajan Etherajan
MPMohan Panjacharam
Mohan Panjacharam
Globally, India has reported the third highest number of COVID-19 cases. Chennai, the capital of Tamil Nadu state, witnessed a huge surge in COVID-19 cases, resulting in the establishment of isolation facilities named COVID Care Center (CCC). In our study, we describe the demographic, epidemiological, and clinical characteristics; clinical progression; and outcome of 1,263 asymptomatic/mildly symptomatic COVID-19 patients isolated in one such CCC between May 4, 2020 and June 4, 2020. Around 10.5% of the patients progressed to moderate/severe illness, requiring referral for tertiary care, and three died. Nearly half (49.5%) of the patients were symptomatic at the time of admission, 2.2% of the patients developed symptoms post-testing, and 48.5% patients remained asymptomatic during the entire course of illness. Most common presenting symptoms were fever (69.9%) and cough (29.6%), followed by generalized body pain, breathlessness, and loss of smell and taste. On multivariate analysis, we identified that symptomatic patients with comorbidities and higher neutrophil–lymphocyte ratio (NLR) were more likely to progress to severe illness warranting referral for tertiary care. COVID Care Center ensured case isolation and monitoring of asymptomatic/mildly symptomatic patients, thereby providing hospital beds for sick patients. COVID Care Center isolation facilities are safe alternatives for medical institutions to isolate and monitor COVID-19 patients. Older symptomatic patients with comorbidities and a high NLR admitted in an isolation facility must be frequently monitored for prompt identification of clinical progression and referral to higher center for advanced medical care.

16 January 2020 in The Journal of Gene Medicine
Verified
Journal Article
Closed access
PDF file
KNKrishnasamy Narayanasamy
Krishnasamy Narayanasamy
RKRajendran Karthick
Rajendran Karthick
PPPriyadarshini Panneerselvam
Priyadarshini Panneerselvam
NMNithya Mohan
Nithya Mohan
ARArunkumar Ramachandran
Arunkumar Ramachandran
MRMuthukumaran Rajaram
Muthukumaran Rajaram

5 November 2019 in International Journal of Diabetes in Developing Countries
Verified
Journal Article
Closed access
PDF file
RCRajeev Chawla
Rajeev Chawla
BMB. M. Makkar
B. M. Makkar
SASudeepta Aggarwal
Sudeepta Aggarwal
SBSarita Bajaj
Sarita Bajaj
ADAshok Kumar Das
Ashok Kumar Das
AZAh Zargar
Ah Zargar

1 January 2005 in Indian Journal of Nephrology
Verified
Journal Article
Closed access
VVVijay Viswanathan
Vijay Viswanathan
CSC Snehalatha
C Snehalatha
MNMb Nair
Mb Nair
ARArunkumar Ramachandran
Arunkumar Ramachandran

16 June 2021 in Journal of Clinical and Translational Hepatology
Verified
Journal Article
Open access
NKNarayanasamy Krishnasamy
Narayanasamy Krishnasamy
KRKarthick Rajendran
Karthick Rajendran
PBParimita Barua
Parimita Barua
ARArunkumar Ramachandran
Arunkumar Ramachandran
PPPriyadarshini Panneerselvam
Priyadarshini Panneerselvam
MRMuthukumaran Rajaram
Muthukumaran Rajaram
Liver enzyme abnormalities in coronavirus 2019 (COVID-19) are being addressed in the literature. The predictive risk of elevated liver enzymes has not been established for COVID-19 mortality. In this study, we hypothesized that elevated liver enzymes at admission can predict the outcome of COVID-19 disease with other known indicators, such as comorbidities.

28 February 2026 in Biomedicines
Verified
Journal Article
Open access
PDF file
RPRaja Singh Paulraj
Raja Singh Paulraj
Anbazhagan SathiyaseelanAnbazhagan Sathiyaseelan
Anbazhagan Sathiyaseelan
PPParthasarathi Perumal
Parthasarathi Perumal
ARArunkumar Ramachandran
Arunkumar Ramachandran
SPSHANTHI GRACE PAULRAJ
SHANTHI GRACE PAULRAJ
Background/Objectives: Gastric ulcer is a prevalent global gastrointestinal disorder influenced by multiple factors, including excessive alcohol consumption, poor dietary habits, psychological stress, smoking, and the chronic use of non-steroidal anti-inflammatory drugs. Among these, alcohol plays a critical role in gastric mucosal injury by enhancing gastric acid secretion, triggering inflammatory responses, inducing oxidative stress, and promoting epithelial cell apoptosis while simultaneously depleting key protective mediators such as nitric oxide and prostaglandin E2. Growing interest has focused on medicinal plants as promising sources of novel therapeutic agents for the management of peptic ulcer disease. Methods: This review summarizes commonly used medicinal plants documented in both Ayurvedic and modern medical systems that exhibit ulcer-healing potential. Experimental and preclinical studies indicate that various herbal drugs and plant extracts derived from different plant parts exert significant anti-ulcer effects through multiple mechanisms, including antioxidant activity, modulation of inflammatory pathways, enhancement of mucosal defense, and inhibition of gastric acid secretion. Results: The review further highlights the gastroprotective effects of these herbal remedies as demonstrated in established experimental ulcer models. Conclusions: Exploring plant-based therapies for gastric ulcers offers valuable insights into alternative and complementary treatment strategies. Continued research aimed at identifying bioactive compounds, elucidating their molecular mechanisms, and developing improved formulations may contribute to safer, more effective, and patient-friendly therapeutic options for peptic ulcer management.