Withaferin-A, a steroidal lactone encapsulated mannose decorated liposomes ameliorates rheumatoid arthritis by intriguing the macrophage repolarization in adjuvant-induced arthritic rats

2017 ◽  
Vol 155 ◽  
pp. 349-365 ◽  
Author(s):  
Farhath Sultana ◽  
Manoj Kumar Neog ◽  
MahaboobKhan Rasool
2021 ◽  
pp. 101377
Author(s):  
Mobashar Hussain Urf Turabe Fazil ◽  
Chandra Sekhar Chirumamilla ◽  
Claudina Perez-Novo ◽  
Brandon Han Siang Wong ◽  
Sunil Kumar ◽  
...  

2021 ◽  
pp. 103529
Author(s):  
Widad Ben Bakrim ◽  
Laila El bouzidi ◽  
Houria Manouze ◽  
Jawhar Hafsa ◽  
Mansour Sobeh ◽  
...  

1976 ◽  
Vol 2 (2) ◽  
pp. 71-77 ◽  
Author(s):  
B. Shohat ◽  
A. Shaltiel ◽  
M. Ben-Bassat ◽  
H. Joshua

2021 ◽  
pp. 36-52
Author(s):  
Sangeetha Vinod ◽  
Kalaiselvi Senthil

COVID 19, which has lead to the death of millions of people, is still spreading worldwide. The development of any new drug after proper trial is much time consuming.  This present global pandemic situation has lead the researchers around the world to run behind various existing antiviral and immunomodulatory natural compounds to overcome this contagious disease.  Withania somnifera (ashwagandha) that is being used in Ayurvedic medicine for several ailments since several years is also said to pocess anti viral activity. Thus many of its metabolites are being studied individually for its efficacy against the dreadful disease. Withaferin A, a steroidal lactone from ashwagandha is one such prime metabolite which beyond acting as an antioxidant or antimicrobial agent, is also said to pocess anti-inflammatory to anti carcinogenic properties.  Thus because of its wide spectrum of medicinal properties it has now become an attractive drug candidate for several preclinical studies. This increase in the demand for withaferin A has chanelled its way towards in vitro propagation of the plant Withania somnifera and trials on various strategies to increase the yield in terms of plant biomass as well as the withaferin content in the plants thus making it a better alternative to field grown plants. Thus this article reviews in depth on the important medicinal properties of withaferin A, its demand in Ayurveda industry and the in vitro strategies being carried out to overcome the demand.


2020 ◽  
Author(s):  
Alex R. Straughn ◽  
Sham S. Kakar

Abstract The outbreak and continued spread of the novel coronavirus disease 2019 (COVID-19) is a preeminent global health threat that has resulted in the infection of over 6 million people worldwide. In addition, the pandemic has claimed the lives of over 350,000 people worldwide. Age and the presence of underlying comorbid conditions have been found to be key determinants of patient mortality. One such comorbidity is the presence of an oncological malignancy, with cancer patients exhibiting an approximate two-fold increase in mortality rate. Due to a lack of data, no consensus has been reached about the best practices for the diagnosis and treatment of cancer patients. Interestingly, two independent research groups have discovered that Withaferin A (WFA), a steroidal lactone with anti-inflammatory and anti-tumorigenic properties, may bind to the viral spike (S-) protein of SARS-CoV-2. Further, preliminary data from our research group has demonstrated that WFA does not alter expression of ACE2 in the lungs of tumor-bearing female mice. Downregulation of ACE2 has recently been demonstrated to increase the severity of COVID-19. Therefore, WFA demonstrates real potential as a therapeutic agent to treat or prevent the spread of COVID-19 due to the reported interference in viral S-protein to host receptor binding and its lack of effect on ACE2 expression in the lungs.


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