Displaying publications 1 - 20 of 69 in total

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  1. Kow CS, Ramachandram DS, Hasan SS
    Hypertens Res, 2022 02;45(2):360-363.
    PMID: 34754084 DOI: 10.1038/s41440-021-00786-z
    We aimed to perform a systematic review and meta-analysis to determine the overall effect of the preadmission/prediagnosis use of calcium channel blockers (CCBs) on the clinical outcomes in hypertensive patients with COVID-19. A systematic literature search with no language restriction was conducted in electronic databases in July 2021 to identify eligible studies. A random-effects model was used to estimate the pooled summary measure for outcomes of interest with the preadmission/prediagnosis use of CCBs relative to the nonuse of CCBs at 95% confidence intervals (CIs). The meta-analysis revealed a significant reduction in the odds of all-cause mortality with the preadmission/prediagnosis use of CCBs relative to the nonuse of CCBs (pooled OR = 0.65; 95% CI 0.49-0.86) and a significant reduction in the odds of severe illness with preadmission/prediagnosis use of CCBs relative to the nonuse of CCBs (pooled OR = 0.61; 95% CI 0.44-0.84), and is associated with adequate evidence to reject the model hypothesis of 'no significant difference' at the current sample size. The potential protective effects offered by CCBs in hypertensive patients with COVID-19 merit large-scale prospective investigations.
  2. Vellapandian C, R R, Ramachandram DS
    J Diabetes Metab Disord, 2022 Dec;21(2):1557-1567.
    PMID: 36404830 DOI: 10.1007/s40200-022-01101-4
    Purpose: This study was carried out to study the effect of anethole rich fraction on the Diabetic Nephropathy (DN) rats, and explore the mechanisms.

    Methods: Male wistar rats were grouped into 4 (n = 6 per group): Control, junk food fed DN induced rats, low dose and high dose groups. DN was induced by oral junk food feeding. They were monitored for blood glucose levels and urine protein content at regular intervals. At the end of the study, the biological and hematological parameters were measured. Pancreatic and kidney viscera were taken to observe histopathological changes.

    Results: Both the doses of anethole rich fraction could drastically lower blood glucose levels, Low Density Lipoprotein (LDL), Glycated Serum Protein (GSP), Total Cholesterol (TC), Triglycerides (TG) (P  0.05). Both doses of anethole rich fraction also improved the pathological changes of kidney and pancreatic tissues in DN rats (P  0.05).

    Conclusions: Hence it can be hypothesized that the high dose of anethole rich fraction (100 mg/kg) could reach the intervention effect and could ameliorate renal damage in DN rats by improving the renal functions, oxidative stress levels, glycometabolism and pathological changes of pancreas and kidney.

  3. Kow CS, Ramachandram DS, Hasan SS
    J Infect Chemother, 2022 Feb;28(2):257-265.
    PMID: 34840039 DOI: 10.1016/j.jiac.2021.11.008
    OBJECTIVE: We aimed to perform a meta-analysis to summarize the overall evidence from randomized controlled trials related to higher-intensity anticoagulation in hospitalized patients with COVID-19.

    METHODS: A systematic literature search was performed in electronic databases to identify randomized controlled trials comparing the clinical outcomes between intermediate/ therapeutic anticoagulation and prophylactic anticoagulation. Meta-analyses with random-effects models were used to estimate the pooled odds ratio (OR) for outcomes of interest at a 95% confidence interval (CI).

    RESULTS: Eight randomized controlled trials were included, with a total of 5405 hospitalized patients with COVID-19. The meta-analysis revealed no statistically significant difference in the odds of mortality (pooled OR = 0.92; 95% CI 0.71-1.19) but a statistically significant reduction in the odds of development of thrombotic events (pooled OR = 0.55; 95% CI 0.42-0.72), and significantly increased odds of development of major bleeding (pooled OR = 1.81; 95% CI 1.20-2.72) with the use of intermediate/therapeutic anticoagulation, relative to prophylactic anticoagulation. Subgroup analysis in patients with a severe course of COVID-19 observed a statistically significant reduction in the odds of development of thrombotic events (pooled OR = 0.66; 95% CI 0.45-0.98) but no significant difference in the odds of development of major bleeding events (pooled OR = 1.37; 95% CI 0.74-2.56), with the use of intermediate/therapeutic anticoagulation, relative to prophylactic anticoagulation.

    CONCLUSION: There could be net clinical benefits with higher-intensity dosing of anticoagulation relative to prophylactic-dosing of anticoagulation among hospitalized patients with severe COVID-19.

  4. Kow CS, Ramachandram DS, Hasan SS
    HIV Med, 2022 Jan 12.
    PMID: 35023263 DOI: 10.1111/hiv.13228
  5. Kow CS, Ramachandram DS, Hasan SS
    Immunopharmacol Immunotoxicol, 2022 Feb;44(1):28-34.
    PMID: 34762561 DOI: 10.1080/08923973.2021.1993894
    AIM: Several randomized trials have evaluated the effect of neutralizing monoclonal antibodies on the risk of hospital admission and risk of mortality in patients with COVID-19. We aimed to summarize the overall evidence in the form of a systematic review and meta-analysis.

    METHODS: A systematic literature search with no language restriction was performed in electronic databases and preprint repositories to identify eligible studies published up to 29 June 2021. The outcomes of interest were hospital admission and all-cause mortality. A random-effects model was used to estimate the pooled odds ratio (OR) for outcomes of interest with the use of neutralizing monoclonal antibodies relative to nonuse of neutralizing monoclonal antibodies, at 95% confidence intervals (CI).

    RESULTS: Our systematic literature search identified nine randomized controlled trials. Three trials had an overall low risk of bias, while four trials had some concerns in the overall risk of bias. The meta-analysis revealed no statistically significant difference in the odds of mortality (pooled OR = 0.69; 95% CI 0.33-1.47), but a statistically significant reduction in the odds of hospital admission (pooled OR = 0.29; 95% CI 0.21-0.42), with the administration of a neutralizing monoclonal antibody among patients with COVID-19, relative to non-administration of a neutralizing monoclonal antibody, at the current sample size.

    CONCLUSION: The reduced risk of hospital admission with neutralizing monoclonal antibodies use suggests that the timing of neutralizing antibodies administration is key in preventing hospital admission and, ultimately, death. Future randomized trials should aim to determine if the clinical outcomes with neutralizing monoclonal antibodies differ based on serostatus.

  6. Kow CS, Ramachandram DS, Hasan SS
    Travel Med Infect Dis, 2022;48:102350.
    PMID: 35500844 DOI: 10.1016/j.tmaid.2022.102350
    Thus far, the investigations on the efficacy of the COVID-19 vaccines in randomized trials [8,9] have been centered around reducing the risk of severe infection and mortality. We opine investigations on the efficacy of the COVID-19 vaccines to reduce the risk of cardiovascular outcomes should be performed to understand if COVID-19 vaccination has cardiovascular benefits. Such investigations could also develop more confidence toward the acceptance of COVID-19 vaccines by the public, especially when some of the COVID-19 vaccines (particularly the mRNA vaccines such as BNT162b2 and mRNA-1273 vaccines) have been associated with the rare occurrence of cardiovascular complications, including myocarditis and pericarditis [10,11]. While the infrequency and the mild nature of the myocarditis and pericarditis cases after vaccination greatly exceed the small increased risk, specious reports on social media are still fueling the COVID-19 vaccine hesitancy. Therefore, we urge the performance of prospective investigations to establish the relationship between COVID-19 vaccines and cardiovascular outcomes.
  7. Kow CS, Ramachandram DS, Hasan SS
    Mol Immunol, 2022 May;145:78-79.
    PMID: 35303531 DOI: 10.1016/j.molimm.2022.03.001
    We read with interest the narrative review authored by Kiser et al. (2021), which discussed extensively the antioxidant effect and anti-inflammatory effect of sulforaphane, a dietary supplement found in high amounts in cruciferous vegetables that ais orally accessible and well-tolerated. Notably, in their review, the authors also discussed the potential use of sulforaphane in patients with coronavirus disease 2019 (COVID-19). Sulforaphane mediates the inhibitory effect on NLRP3 inflammasome activation and we believe that this could be the main mechanism where sulforaphane is useful for patients with COVID-19.
  8. Kow CS, Ramachandram DS, Hasan SS
    Acta Diabetol, 2022 Feb;59(2):285-286.
    PMID: 34648089 DOI: 10.1007/s00592-021-01810-x
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