Ansari, Anam Shamsuzzaman,
Published in
Steroids
The present study reports a comprehensive and conformational aspect of binding of steroidal pyridines (1-6) with a model transport protein, bovine serum albumin (BSA) by fluorescence, UV-visible, circular dichroism, and molecular docking techniques. Quenching of BSA emission was attributed to the formation of the ground state complex after the comp...
Khan, Asna Tauqir Alam, Md Iqbal, Arfeen Siddiqui, Tabassum Ali, Abad
Published in
Steroids
Protein misfolding can lead to fibrillar and non-fibrillar deposits which are the signs of countless human diseases. A promising strategy for the prevention of such diseases is the inhibition of protein aggregation, and the most crucial step toward effective prevention is the development of small molecules having the potential for protein-aggregati...
Sen, Subhadeep Singh, Bhagat Biswas, Goutam
Published in
Steroids
Several drugs and antibodies have been repurposed to treat COVID-19. Since the outcome of the drugs and antibodies clinical studies have been mostly inconclusive or with lesser effects, therefore the need for alternative treatments has become unavoidable. However, corticosteroids, which have a history of therapeutic efficacy against coronaviruses (...
da Silva, Francisco E F Ávila, Fábio do N Pereira, Nicaely M O de Freitas, Maria D Pessoa, Otília D L da Fonseca, Aluísio M da Costa, José G M Santiago, Gilvandete M P
Published in
Steroids
Thirteen fucosterol derivatives were prepared by structural modification at the hydroxyl group in C-3 and catalytic hydrogenation at the carbon-carbon double bond in C-5(6) and C-24(28). The structures of all compounds were established based on their spectral data (IR, MS, and NMR). Fucosterol (1) and its derivatives (2-12, and a mixture of 13a and...
Mironov, Maksim E Rybalova, Tatyana V Pokrovskii, Mikhail A Emaminia, Fatemeh Gandalipov, Erik R Pokrovskii, Andrey G Shults, Elvira E
Published in
Steroids
Diosgenin is of significant interest due to its biological activity and synthetic application. In this study, we report the synthesis of a series of spirostanic 1,4,5-trisubstituted 1,2,3-triazoles by the three component reaction of (25R)-6-azidospirostan-3,5-diols with acetophenones and aryl aldehydes. The one-pot two step synthesis proceeds throu...
Ran, Gao Weisheng, Tian
Published in
Steroids
An improved synthesis of azedarachol is reported in 10 steps with an overall yield of 12% from pregnanetriol. A proper use of p-anisaldehyde dimethyl acetal provided a chance of regioselective reduction of 2-enepregnane-16R,20R-p-anisaldehyde acetal(6) and in turn allowed a selective protection at C16-hydroxy and enabled a stereoselective reduction...
Ansari, Anam Ali, Abad Khan, Nazoora Saad Umar, Mohd Owais, Mohammad Shamsuzzaman,
Published in
Steroids
Zinc oxide nanoparticles (ZnO NPs) were synthesized by a green method using Azadirachta indica leaf extract. The structure of the prepared ZnO (NPs) were characterized by FT-IR, XRD, SEM-EDX and TEM analyses. The biosynthesized ZnO (NPs) were then used as a catalyst for the synthesis of steroidal dihydropyrazole derivatives through a one-pot multic...
Zhang, Yanming Yang, Keli Ye, Shuang Tang, Wenmin Chang, Xuliang Wang, Yuan Wang, Chuanhao Wang, Ying Wu, Yuelin Miao, Zhenyuan
...
Published in
Steroids
The ecto-5'-nucleotidase (CD73) is an important enzyme in the adenosine pathway and catalyzes the extracellular hydrolysis of adenosine monophosphate (AMP) yielding adenosine which is involved in the inflammation and immunosuppression. Inhibitors of CD73 have potential as novel immunotherapy agents for the treatment of cancer and infection. In this...
Alyami, Bandar A Ejaz, Iqra Mahnashi, Mater H Alqahtani, Yahya S Alqarni, Ali O Saeed Jan, Muhammad Sadiq, Abdul Rashid, Umer
Published in
Steroids
Breast cancer (BCa) is very common malignancy and globally, has become the second leading cause of cancer death among women. For the treatment of BCa, estrogen receptors-alpha (ERα) has proven to be a therapeutic target. In continuation of our previous reported dihydropyrimidine-based pregnenolone derivatives, we modified at C-3 hydroxyl group. Str...
Zhang, Huifeng Lianto, Priscilia Li, Weiming Xu, Mengfan Moore, J Bernadette Thorne, James L
Published in
Steroids
Genetic susceptibility to dyslipidaemia remains incompletely understood. The liver X receptors (LXRs), members of the nuclear receptor superfamily of ligand dependent transcription factors, are homeostatic regulators of lipid metabolism. Multiple single nucleotide polymorphisms (SNPs)have been identified previously in the coding and regulatory regi...