Publications by authors named "Natarajan Harivenkatesh"

Background: Inflammatory cytokines are associated with the pathophysiology of major depressive disorder (MDD). Nevertheless, whether they are trait or state biomarkers remains unclear. We aimed to assess and compare selected cytokines, miRNAs, and oxidative stress biomarker levels between patients with MDD, first-degree relatives (FDRs), and unrelated healthy controls (UHCs).

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Aim: The study aimed to examine the association of two selected candidate SNPs rs2242480 (CYP3A4) and rs1045642 (ABCB1) with metabolic ratio of plasma norfentanyl to fentanyl concentrations in patients undergoing major breast surgeries.

Methods: The retrospective cross-sectional study was done in 257 female patients. DNA extraction, genotyping of selected SNPs, and drug levels measurement were employed.

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Fentanyl exhibits interindividual variability in its dose requirement due to various nongenetic and genetic factors such as single nucleotide polymorphisms (SNPs). This study aims to develop and cross-validate robust predictive models for postoperative fentanyl analgesic requirement and other related outcomes in patients undergoing major breast surgery. Data regarding genotypes of 10 candidate SNPs, cold pain test (CPT) scores, pupillary response to fentanyl (PRF), and other common clinical characteristics were recorded from 257 patients undergoing major breast surgery.

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Background: Postoperative analgesia is crucial for the early and effective recovery of patients undergoing surgery. Although postoperative multimodal analgesia is widely practiced, opioids such as fentanyl are still one of the best analgesics. The analgesic response of fentanyl varies widely among individuals, probably due to genetic and nongenetic factors.

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Essential hypertension is an important cause of cardiovascular morbidity and mortality that is compounded by concomitant risk factors like diabetes mellitus and dyslipidemia. Phyllanthus emblica is a rich source of antioxidants, tannins, and vitamin C and is used in treating various ailments in traditional medicine. This study aimed to elucidate the effects of aqueous extract of Phyllanthus emblica on essential hypertension and other protective actions.

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Therapeutic drug monitoring of imatinib in patients with chronic myeloid leukemia (CML) is an ongoing debate. We studied the influence of imatinib trough levels on therapeutic response in 206 newly diagnosed patients with CML. We also compared the drug levels in patients taking branded and generic imatinib.

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Influence of polymorphisms in the genes coding for imatinib transporters and metabolizing enzymes on cytogenetic relapse in patients with chronic myeloid leukemia (CML) is not known. One hundred and four patients (52 cases with cytogenetic relapse and 52 controls without relapse) with chronic-phase CML on imatinib therapy and have completed 5 years of follow-up were enrolled. The following single nucleotide polymorphisms (SNPs) were genotyped; C1236T, C3435T, G2677T/A in MDR1 gene and A6986G in CYP3A5 gene, using PCR-RFLP method and validated by direct gene sequencing.

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Polymorphisms in genes coding for imatinib transporters and metabolizing enzymes may affect imatinib pharmacokinetics and clinical response. Aim of this study was to assess the influence of polymorphisms in MDR1 and CYP3A5 genes on imatinib trough levels, cytogenetic and molecular response in patients with CML. Newly diagnosed patients with chronic-phase CML started on imatinib therapy were enrolled and followed up prospectively for 24 months.

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Introduction: Therapeutic drug monitoring (TDM) helps to optimize the dose of antiepileptic drugs. Only limited information is available about the clinical utility of TDM of antiepileptic drugs in India. Hence, we aimed to study the clinical utility of antiepileptic TDM in a tertiary care hospital in India and to explore the association between the plasma drug levels and the occurrence of breakthrough seizures and drug toxicity.

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Introduction: The long half-life of atorvastatin and fenofibrate makes them suitable for alternate day therapy. Hence, we aimed to study the efficacy, safety, and cost-effectiveness of alternate day therapy with atorvastatin and fenofibrate combination in mixed dyslipidemia.

Methods: Eligible patients with mixed dyslipidemia were randomly allotted into 2 equal parallel groups-alternate day therapy group (group 1) and daily therapy group (group 2).

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