Rajalakshimi Vasudevan

Dr. Rajalakshimi Vasudevan

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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14 December 2021 in Plants
Verified
Journal Article
Open access
PDF file
SWShadma Wahab
Shadma Wahab
SASivakumar Annadurai
Sivakumar Annadurai
SSShahabe Saquib
Shahabe Saquib
Gotam DasGotam Das
Gotam Das
WAWasim Ahmad
Wasim Ahmad
MAMohd Amir
Mohd Amir
There are more than 30 species of Glycyrrhiza genus extensively spread worldwide. It was the most prescribed herb in Ancient Egyptian, Roman, Greek, East China, and the West from the Former Han era. There are various beneficial effects of licorice root extracts, such as treating throat infections, tuberculosis, respiratory, liver diseases, antibacterial, anti-inflammatory, and immunodeficiency. On the other hand, traditional medicines are getting the attraction to treat many diseases. Therefore, it is vital to screen the medicinal plants to find the potential of new compounds to treat chronic diseases such as respiratory, cardiovascular, anticancer, hepatoprotective, etc. This work comprehensively reviews ethnopharmacological uses, phytochemistry, biological activities, clinical evidence, and the toxicology of licorice, which will serve as a resource for future clinical and fundamental studies. An attempt has been made to establish the pharmacological effect of licorice in different diseases. In addition, the focus of this review article is on the molecular mechanism of licorice extracts and their four flavonoids (isoliquiritigenin, liquiritigenin, lichalocone, and glabridin) pharmacologic activities. Licorice could be a natural alternative for current therapy to exterminate new emerging disorders with mild side effects. This review will provide systematic insights into this ancient drug for further development and clinical use.

1 April 2021 in Vaccines
Verified
Journal Article
Open access
PDF file
DADalia Almaghaslah
Dalia Almaghaslah
AAABDULRHMAN ALSAYARI
ABDULRHMAN ALSAYARI
GKGeetha Kandasamy
Geetha Kandasamy
RVRajalakshimi Vasudevan
Rajalakshimi Vasudevan
Ending the COVID-19 pandemic requires achieving herd immunity, either by previous infection or by vaccination. However, concerns about the COVID-19 vaccine are growing around the globe. The current study was conducted to investigate young the adult population’s hesitancy towards the vaccine. The study used a prospective cross-sectional design. Data was collected using an online self-administered questionnaire. A total of 862 Saudi adults participated. Information was gathered on the participants’ perspectives towards the severity and susceptibility of the COVID-19 infection, reasons for their hesitancy to receive the vaccine, perceived benefits, and reasons for action. Just under a quarter (19.6%) of respondents had previously tested positive for COVID-19. A small minority of the participants had already received the vaccine (2.1%), while 20.3% had registered in the Sehaty app (application) to receive the vaccine. Just under half of them (48%) will take the vaccine when mass vaccination is achieved and approximately the same number (46.7%) will only take it if it is made mandatory. Vaccine reluctance is highly prevalent among the general public in Saudi Arabia during the COVID-19 pandemic. While many are aware of a high likelihood of getting the infection, the efficacy and safety of the COVID-19 vaccine were reported as barriers to vaccination.

31 December 2021 in Plants
Verified
Journal Article
Open access
PDF file
SASaad Alshehri
Saad Alshehri
SWShadma Wahab
Shadma Wahab
SSShahabe Saquib
Shahabe Saquib
Gotam DasGotam Das
Gotam Das
UHUmme Hani
Umme Hani
RVRajalakshimi Vasudevan
Rajalakshimi Vasudevan
Tamarix aphylla is a well-known species of the genus Tamarix. T. aphylla (Tamaricaceae) is a perennial tree in Asia, the Middle East, and Central Africa. It is used as a carminative diuretic in tuberculosis, leprosy, and hepatitis. Various pharmacological properties have been shown by T. aphylla, such as antidiabetic, anti-inflammatory, antibacterial, antifungal, anticholinesterase, and wound-healing activity. However, T. aphylla has not received much attention for its secondary metabolites and bioactive constituents. Research has shown that this plant has hidden potential that needs to be explored. This review aims to cover botanical classification, geographical distribution, taxonomy, ethnobotanical uses, and the phytochemical compounds found in T. aphylla. The toxicology and pharmacological effects of T. aphylla are also discussed. We examined various scholarly resources to gather information on T. aphylla, including Google Scholar, Scopus, Science Direct, Springer Link, PubMed, and Web of Science. The finding of this work validates a connection between T. aphylla in conventional medicine and its antidiabetic, antibacterial, anti-inflammatory, wound-healing, antifungal, anticholinesterase, and other biological effects. T. aphylla’s entire plant (such as bark, leaves, fruits) and root extracts have been used to treat hypertension, stomach discomfort, hair loss, cough and asthma, abscesses, wounds, rheumatism, jaundice, fever, tuberculosis, and gum and tooth infection. The phytochemical screening revealed that noticeably all extracts were devoid of alkaloids, followed by the presence of tannins. In addition, different parts have revealed the existence of steroids, flavonoids, cardiac glycosides, and byproducts of gallic acid and ellagic acid. T. aphylla has shown many valuable activities against different diseases and supports its traditional uses. Therefore, high-quality preclinical research and well-designated clinical trials are needed to establish the efficacy and safety of this plant in humans.

7 April 2025 in Pharmaceutics
Verified
Journal Article
Open access
PDF file
ARAnita Rani
Anita Rani
Rajwinder KaurRajwinder Kaur
Rajwinder Kaur
AAAfaf Aldahish
Afaf Aldahish
RVRajalakshimi Vasudevan
Rajalakshimi Vasudevan
Prasanalakshmi BalajiPrasanalakshmi Balaji
Prasanalakshmi Balaji
RSRahul Sharma
Rahul Sharma
Background: Various routes of drug administration are available for psoriasis treatment. However, there is an urgent need for novel and improved therapeutic options. Hence, our study aimed to develop a nanostructured lipid carrier (NLC) gel of hesperidin (HPD) using a systemic QbD approach for an effective treatment of psoriasis. Methods: Initially, HPD-NLC was optimized with independent variables (drug content, amount of liquid lipid, total lipid, and surfactant concentration) using Box–Behnken Design to assess dependent variables (particle size, size distribution, and entrapment efficiency). HPD-NLC was developed using the high-shear homogenization technique. The characteristics of nanoformulation such as particle size, morphology [transmission electron microscopy (TEM) and differential scanning calorimetry (DSC)], crystallinity [powder X-ray diffraction (XRD)], and chemical interactions [Fourier transform infrared spectroscopy (FTIR)], the drug entrapment efficiency (%EE), and the drug release were investigated. Franz-diffusion cell was utilized to perform in vitro diffusion study, and an imiquimod-induced psoriasis model was used for in vivo study. Results: The optimized HPD-NLC exhibited a spherical shape with particle size of 125.7 nm, polydispersity index (PDI) of 0.36, and entrapment efficiency of 52.26% w/w. Further, different techniques validated the reduced crystallinity of the hesperidin. The in vitro diffusion study highlighted the sustained and anomalous diffusion of the drug from NLC gel. In the in vivo study, the HPD-NLC-Gel-treated group displayed normal skin with minimal keratosis, while the drug-loaded gel group exhibited signs of hyperkeratosis and parakeratosis signs. Conclusions: HPD-NLC gel showed promising advancement in nanotechnology-based psoriasis treatment and the results of this study open the door for the application of topical HPD-NLC-Gel clinically.

30 September 2024 in Pharmaceuticals
Verified
Journal Article
Open access
PDF file
AAAfaf Aldahish
Afaf Aldahish
NSNirenjen Shanmugasundaram
Nirenjen Shanmugasundaram
RVRajalakshimi Vasudevan
Rajalakshimi Vasudevan
TATaha Alqahtani
Taha Alqahtani
SASaud Alqahtani
Saud Alqahtani
NJNARAYANAN J
NARAYANAN J
Background: Non-healing diabetic wounds represent a significant clinical challenge globally, necessitating innovative approaches in drug delivery to enhance wound healing. Understanding the pathogenesis of these wounds is crucial for developing effective treatments. Bioactive dressings and polymeric nanofibers have emerged as promising modalities, with silk biomaterials gaining attention for their unique properties in diabetic wound healing. Purpose of Review: The purpose of this review is to examine the challenges and innovations in treating non-healing diabetic wounds, emphasizing the global burden and the need for effective solutions. This review explores the complex mechanisms of wound healing in diabetes and evaluates the therapeutic potential of bioactive dressings and polymeric nanofibers. Special focus is given to the application of silk biomaterials, particularly silk fibroin, for wound healing, detailing their properties, mechanisms, and clinical translation. This review also describes various nanofiber fabrication methods, especially electrospinning technology, and presents existing evidence on the effectiveness of electrospun silk fibroin formulations. Recent Findings: Recent advancements highlight the potential of silk biomaterials in diabetic wound healing, owing to their biocompatibility, mechanical strength, and controlled drug release properties. Electrospun silk fibroin-based formulations have shown promising results in preclinical and clinical studies, demonstrating accelerated wound closure and tissue regeneration. Summary: Non-healing diabetic wounds present a significant healthcare burden globally, necessitating innovative therapeutic strategies. Bioactive dressings and polymeric nanofibers, particularly silk-based formulations fabricated through electrospinning, offer promising avenues for enhancing diabetic wound healing. Further research is warranted to optimize formulation parameters and validate efficacy in larger clinical trials.

22 November 2021 in Healthcare
Verified
Journal Article
Open access
PDF file
PPPremalatha Paulsamy
Premalatha Paulsamy
RARizwan Ashraf
Rizwan Ashraf
SAShadia Hamoud Alshahrani
Shadia Hamoud Alshahrani
KPKalaiselvi Periannan
Kalaiselvi Periannan
AQAbsar Ahmed Qureshi
Absar Ahmed Qureshi
KKKalpana Krishnaraju
Kalpana Krishnaraju
Diabetes mellitus is a major public health issue that considerably impacts mortality, morbidity, and healthcare costs worldwide. The COVID-19 pandemic has created havoc in diabetes management, too, like other spectrums of life. A descriptive, cross-sectional study was adopted to determine the effect of Social Support, Self-Care Behaviour and Self-Efficacy in Type 2 Diabetes Mellitus (T2D) during this COVID-19 pandemic. Two hundred T2D patients who satisfied the inclusion criteria were chosen using a convenient sampling procedure. The tool consists of four sections, including socio-demographic characteristics, Multidimensional Scale of Perceived Social Support (MSPSS), revised Summary of Diabetes Self-Care Activities (SDSCA) Scale and modified Diabetes Management Self-Efficacy Scale (DMS). Descriptive and inferential statistics were used to analyze the obtained data. The mean and SD of diabetic management self-efficacy is 5.74 (1.95) and 4.37 (1.4), respectively, for patients with HbA1c < 6.5% and HbA1c ≥ 6.5%. The self-care activities of the patients who had good glycemic control were 4.31 (2.06) compared to 3.50 (1.73) who did not. The social support received by the patients was 6.13 (2.13) vs. 5.31 (1.67) among patients with glycemic control vs. no control. The results show that social support (p = 0.04), self-efficacy (p =0.01) and self-care activities (p = 0.001) were significantly related to the level of glycemic control of the T2D patients. A significant relationship was also identified between gender (p = 0.036), age (p = 0.001) and education status (p = 0.000) with HbA1c control of the participants. This study demonstrates a significant relationship between social support, self-care behaviours, self-efficacy and glycemic management in T2D patients. During this COVID-19 pandemic, interventions to enhance the self-care activities like exercise and social support to boost their self-efficacy; for better diabetes management, reducing diabetes complications or prolonging their onset are the need of the hour.