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Topic Review
Equipoise in Immunotherapy Era. Treating Autoimmunity or Cancer
Numerous immunotherapeutic agents, such as immune checkpoint inhibitors (ICIs), have been approved for the treatment of genitourinary (GU) malignancies. While ICIs have improved treatment outcomes and expanded treatment options, they can cause immune-related adverse events (irAEs). 
  • 405
  • 21 Apr 2022
Topic Review
Essential Oil Prevents COVID-19
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV‑2), also known as coronavirus disease-2019 (COVID-19), is a pandemic disease that has been declared as modern history’s gravest health emergency worldwide. Until now, no precise treatment modality has been developed. The angiotensin-converting enzyme 2 (ACE2) receptor, a host cell receptor, has been found to play a crucial role in virus cell entry; therefore, ACE2 blockers can be a potential target for anti-viral intervention. In this study, we evaluated the ACE2 inhibitory effects of 10 essential oils. Among them, geranium and lemon oils displayed significant ACE2 inhibitory effects in epithelial cells. In addition, immunoblotting and qPCR analysis also confirmed that geranium and lemon oils possess potent ACE2 inhibitory effects. Furthermore, the gas chromatography-mass spectrometry (GC–MS) analysis displayed 22 compounds in geranium oil and 9 compounds in lemon oil. Citronellol, geraniol, and neryl acetate were the major compounds of geranium oil and limonene that represented major compound of lemon oil. Next, we found that treatment with citronellol and limonene significantly downregulated ACE2 expression in epithelial cells. The results suggest that geranium and lemon essential oils and their derivative compounds are valuable natural anti-viral agents that may contribute to the prevention of the invasion of SARS-CoV-2/COVID-19 into the human body.
  • 7.2K
  • 13 Feb 2021
Topic Review
Ethanol versus Adenosine on Emotional and Cognitive Disturbances
Binge drinking intake is the most common pattern of ethanol consumption by adolescents, which elicits emotional disturbances, mainly anxiety and depressive symptoms, as well as cognitive alterations. Ethanol exposure may act on the adenosine neuromodulation system by increasing adenosine levels, consequently increasing the activation of adenosine receptors in the brain. The adenosine modulation system is involved in the control of mood and memory behavior.
  • 541
  • 14 Nov 2022
Topic Review
Ethnobotanical Properties and Phytochemistry of Picrorhiza kurroa
Traditional remedies for the treatment of various ailments are gaining popularity. Traditionally, one of the most valuable therapeutic herbs has been Picrorhiza kurroa (P. kurroa) Royle ex Benth. Traditional and folk uses of P. kurroa include chronic constipation, skin-related problems, burning sensation, chronic reoccurring fever, jaundice, heart problems, breathing, digestion, allergy, tuberculosis, blood-related problems, prediabetes and obesity, laxative, cholagogue, and liver stimulatory.
  • 765
  • 12 Dec 2022
Topic Review
Ethnomedicinal Plant Sonapatha: Oroxylum indicum
Oroxylum indicum, Sonapatha is traditionally used to treat asthma, biliousness, bronchitis, diarrhea, dysentery, fevers, vomiting, inflammation, leukoderma, skin diseases, rheumatoid arthritis, wound injury, and deworm intestine. 
  • 531
  • 07 Jun 2021
Topic Review
Ethnomedicinal Properties and Pharmacological Uses of Moringa oleifera
Moringa oleifera (M. oleifera), the “miracle tree”, thrives globally in almost all tropical and subtropical regions, but it is believed to be native to Afghanistan, Bangladesh, India, and Pakistan. The Moringa family comprises 13 species (M. oleifera, M. arborea, M. rivae, M. ruspoliana, M. drouhardii, M. hildebrandtii, M. concanensis, M. borziana, M. longituba, M. pygmaea, M. ovalifolia, M. peregrina, M. stenopetala), of which M. oleifera has become well known for its use in nutrition, biogas production, fertilizer, etc. Moringa has the unique property of tolerating drought. Studies have shown that M. oleifera is among the cheapest and most reliable alternatives for good nutrition. Nearly all parts of the tree are used for their essential nutrients. M. oleifera leaves have a high content of beta-carotene, minerals, calcium, and potassium. Dried leaves have an oleic acid content of about 70%, which makes them suitable for making moisturizers. The powdered leaves are used to make many beverages, of which “Zija” is the most popular in India. The bark of the tree is considered very useful in the treatment of different disorders such as ulcers, toothache, and hypertension. Roots, however, are found to have a role in the treatment of toothache, helminthiasis, and paralysis. The flowers are used to treat ulcers, enlarged spleen, and to produce aphrodisiac substances. The tree is believed to have incredible properties in treating malnutrition in infants and lactating mothers. 
  • 802
  • 13 Feb 2023
Topic Review
Eudragit® Based Copolymer for Smart Healthcare
Eudragit, synthesized by radical polymerization, is used for enteric coating, precise temporal release, and targeting the entire gastrointestinal system. Evonik Healthcare Germany offers different grades of Eudragit. The ratio of methacrylic acid to its methacrylate-based monomers used in the polymerization reaction defines the final product’s characteristics and consequently its potential range of applications.
  • 640
  • 22 May 2023
Topic Review
Eugenol-based O/W Emulsion by Low-energy Emulsification
Emulsions are systems formed by two immiscible liquids, one of which is dispersed in the other as droplets with a relative stability. These have multiple applications, among them, in the formulation of pharmaceutical and cosmetic products. Its preparation requires generating a large interfacial area, which is usually attained by using the physicochemical formulation know-how on surfactant-oil-water (SOW) systems. Among the applications in the pharmaceutical industry, topical creams, and emulsions for intravenous and for oral administration can be found.  Eugenol can be extracted from cloves (Syzygium aromaticum) by various methods, including steam distillation, hydrodistillation and Soxhlet extraction. Furthermore, emulsions based on eugenol can be obtained for a variety of applications, including as topical and oral anesthetic. Nanoemulsions can be formulated with a mixture of non-ionic surfactants Span 20/Tween 80 at an HLB of 11 to 13 and a total surfactant concentration of 4%, using the dilution phase transition method (so-called spontaneous emulsification) to attain stable O/W eugenol-based emulsions. Paraffin oil/eugenol ratio of 4/1 can be used to reach a final emulsion internal oil phase content of 10% with 4% surfactant and 86% aqueous phase. Different polymers are used as viscosifiers, including carboxymethylcellulose. Under these conditions, eugenol-based emulsions with an average droplet size of less than 2 μm can be attained, with topical and oral anesthetic characteristics.
  • 1.8K
  • 03 Apr 2022
Topic Review
Excipients Used for Modified Nasal Drug Delivery
Intranasal absorption is a favored route because it avoids the gastrointestinal and hepatic metabolism, leading to an increase in drug bioavailability, and a reduction in the side effects and the required dose administered. The ongoing challenging task in the field of nasal drug delivery is the maintenance of an efficient concentration of the active substance in the target area for an adequate period of time. 
  • 984
  • 27 Sep 2022
Topic Review
Exosomal-based Drug Delivery
Exosomes are membrane-bound nanovesicles that are typically 30–150 nm in size with various bioactive molecules. They are typically generated by first endocytosing various transmembrane proteins into endosomes within the cell, which are then sorted and form intraluminal vesicles. These vesicles are then released as the endosome merges with the cell membrane and releases its contents outside of the cell. Tetraspanins (CD9, CD63, CD81) are one of the most common proteins expressed on the surface of exosomes and are often used as exosome-specific markers. These proteins have been shown to interact with different proteins such as integrins and major histocompatibility complexes (MHC). Exosomes commonly act as carriers of genetic and proteomic information, and are therefore vital in intercellular communication. In its role as a cellular messenger, exosomes have been implicated in promoting cancer; because of this, they are also being investigated as potential therapeutic targets and delivery vehicles. 
  • 1.1K
  • 06 Jun 2021
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