Ravi Radhakrishnan

Dr. Ravi Radhakrishnan

Department of Surgery, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, USA
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Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

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

Representative Publications

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1 October 2015 in The American Journal of Surgery
Verified
Journal Article
Closed access
FBFredrick J. Bohanon
Fredrick J. Bohanon
AMAmy A. Mrazek
Amy A. Mrazek
MSMohamed T. Shabana
Mohamed T. Shabana
SMSarah Mims
Sarah Mims
GRGeetha L. Radhakrishnan
Geetha L. Radhakrishnan
RRRavi Radhakrishnan
Ravi Radhakrishnan

1 January 2019 in Journal of Surgical Research
Verified
Journal Article
Closed access
BHByron D. Hughes
Byron D. Hughes
JPJennifer A. Perone
Jennifer A. Perone
CCClaire B. Cummins
Claire B. Cummins
CSChristian Sommerhalder
Christian Sommerhalder
DTDouglas S. Tyler
Douglas S. Tyler
RRRavi Radhakrishnan
Ravi Radhakrishnan

1 July 2014 in Journal of Surgical Research
Verified
Journal Article
Closed access
FBFredrick J. Bohanon
Fredrick J. Bohanon
XWXiaofu Wang
Xiaofu Wang
CDChunyong Ding
Chunyong Ding
YDYe Ding
Ye Ding
GRGeetha L. Radhakrishnan
Geetha L. Radhakrishnan
RRRavi Radhakrishnan
Ravi Radhakrishnan

20 February 2020 in Journal of Pediatric Surgery
Verified
Journal Article
Closed access
BHByron Hughes
Byron Hughes
CCClaire B. Cummins
Claire B. Cummins
YSYong Shan
Yong Shan
HMHemalkumar B. Mehta
Hemalkumar B. Mehta
RRRavi Radhakrishnan
Ravi Radhakrishnan
KBKanika A. Bowen-Jallow
Kanika A. Bowen-Jallow

1 July 2018 in The Pediatric Infectious Disease Journal
Verified
Journal Article
Closed access
FBFredrick J. Bohanon
Fredrick J. Bohanon
OLOmar Nunez Lopez
Omar Nunez Lopez
DADeepak Adhikari
Deepak Adhikari
HMHemalkumar B. Mehta
Hemalkumar B. Mehta
YRYesenia Rojas-Khalil
Yesenia Rojas-Khalil
RRRavi Radhakrishnan
Ravi Radhakrishnan
Background: Socioeconomic disparities negatively impact neonatal health. The influence of sociodemographic disparities on neonatal sepsis is understudied. We examined the association of insurance payer status, income, race and gender on neonatal sepsis mortality and healthcare resource utilization. Methods: We used the Kid’s Inpatient Database, a nationwide population-based survey from 2006, 2009 and 2012. Neonates diagnosed with sepsis were included in the study. Multivariable logistic regression (mortality) and multivariable linear regression (length of stay and total hospital costs) were constructed to determine the association of patient and hospital characteristics. Results: Our study cohort included a weighted sample of 160,677 septic neonates. Several sociodemographic disparities significantly increased mortality. Self-pay patients had increased mortality (odds ratio 3.26 [95% confidence interval: 2.60–4.08]), decreased length of stay (−2.49 ± 0.31 days, P < 0.0001) and total cost (−$5015.50 ± 783.15, P < 0.0001) compared with privately insured neonates. Additionally, low household income increased odds of death compared with the most affluent households (odds ratio 1.19 [95% confidence interval: 1.05–1.35]). Moreover, Black neonates had significantly decreased length of stay (−0.86 ± 0.25, P = 0.0005) compared with White neonates. Conclusions: This study identified specific socioeconomic disparities that increased odds of death and increased healthcare resource utilization. Moreover, this study provides specific societal targets to address to reduce neonatal sepsis mortality in the United States.

Verified
Journal Article
Open access
PDF file
CCClaire B. Cummins
Claire B. Cummins
XWXiaofu Wang
Xiaofu Wang
OLOmar Nunez Lopez
Omar Nunez Lopez
GGGabriel Graham
Gabriel Graham
HTHong-Yan Tie
Hong-Yan Tie
RRRavi Radhakrishnan
Ravi Radhakrishnan
Hepatic stellate cell (HSC) activation is responsible for hepatic fibrogenesis and is associated with an overexpression of transcription 3 (STAT3). Luteolin, a common dietary flavonoid with potent anti-inflammatory properties, has previously demonstrated antifibrogenic properties in HSCs but the mechanism has not been fully elucidated. Activated human and rat hepatic stellate cell lines LX-2 and HSC-T6 were used to study the effects of luteolin on HSCs. Cellular proteins were determined by western blot and immunofluorescence. Cell proliferation was assessed with Alamar Blue assay. Luteolin significantly decreased LX-2 and HSC-T6 cell viability in a time-and-dose-dependent manner, as well as decreased HSC end-products α-smooth muscle actin (α-SMA), collagen I, and fibronectin. Luteolin decreased levels of total and phosphorylated STAT3, suppressed STAT3 nuclear translocation and transcriptional activity, and attenuated expression of STAT3-regulated proteins c-myc and cyclin D1. STAT3 specific inhibitors stattic and SH-4-54 demonstrated similar effects on HSC viability and α-SMA production. In LX-2 and HSC-T6 cells, luteolin demonstrates a potent ability to inhibit hepatic fibrogenesis via suppression of the STAT3 pathway. These results further elucidate the mechanism of luteolin as well as the effect of the STAT3 pathway on HSC activation.