Isatin (1H indole 2, 3-dione) is a heterocyclic, endogenous lead molecule recognized in humans and different plants. The isatin nucleus and its derivatives are owed the attention of researchers due to their diverse pharmacological activities such as anticancer, anti-TB, antifungal, antimicrobial, antioxidant, anti-inflammatory, anticonvulsant, anti-HIV, and so on. Many research chemists take advantage of the gentle structure of isatins, such as NH at position 1 and carbonyl functions at positions 2 and 3, for designing biologically active analogues via different approaches. Literature surveys based on reported preclinical, clinical, and patented details confirm the multitarget profile of isatin analogues and thus their importance in the field of medicinal chemistry as a potent chemotherapeutic agent. This review represents the recent development of isatin analogues possessing potential pharmacological action in the years 2016–2020. The structure–activity relationship is also discussed to provide a pharmacophoric pattern that may contribute in the future to the design and synthesis of potent and less toxic therapeutics.

A major global health risk has been witnessed with the development of drug-resistant bacteria and multidrug-resistant pathogens linked to significant mortality. Coumarins are heterocyclic compounds belonging to the benzophenone class enriched in different plants. Coumarins and their derivatives have a wide range of biological activity, including antibacterial, anticoagulant, antioxidant, anti-inflammatory, antiviral, antitumour, and enzyme inhibitory effects. In the past few years, attempts have been reported towards the optimization, synthesis, and evaluation of novel coumarin analogues as antimicrobial agents. Several coumarin-based antibiotic hybrids have been developed, and the majority of them were reported to exhibit potential antibacterial effects. In the present work, studies reported from 2016 to 2020 about antimicrobial coumarin analogues are the focus. The diverse biological spectrum of coumarins can be attributed to their free radical scavenging abilities. In addition to various synthetic strategies developed, some of the structural features include a heterocyclic ring with electron-withdrawing/donating groups conjugated with the coumarin nucleus. The suggested structure−activity relationship (SAR) can provide insight into how coumarin hybrids can be rationally improved against multidrug-resistant bacteria. The present work demonstrates molecular insights for coumarin derivatives having antimicrobial properties from the recent past. The detailed SAR outcomes will benefit towards leading optimization during the discovery and development of novel antimicrobial therapeutics.

In many areas of human life, including food, health, culture, and religion, mushrooms have had a significant impact. Most people eat mushrooms for their flavor and texture. Recently, they have gained popularity as a protein source and a drug research tool. According to the phyla Ascomycota and Basidiomycota, mushrooms are fungi that produce spongy fruiting bodies, particularly those that possess a stalk and an envelope top. Mushrooms are composed of 90% water and 10% dry material. Additionally, it has a physicochemical composition that is important for nutrition. Edible mushrooms have been shown to offer therapeutic benefits, including anti-cancer, cardiovascular, hepatoprotective, neuroprotective, hypolipidemic, antiviral, antibacterial, and anti-diabetic actions. Mushrooms are a fantastic source of nourishment since they are rich in proteins, minerals, complex sugars, unsaturated fatty acids, and secondary metabolites. The composition and nutritional benefits of edible mushrooms have been carefully investigated in this review. Edible mushrooms have been used as potential therapeutic stand-ins, and bioactive components present in edible mushrooms, such as polyphenolic compounds and antioxidant activity, have also been studied. This review article may also help scientists, researchers, and medical professionals slow the advancement of some lifestyle diseases, neurological disorders, along autoimmune disorders.

One of the major causes of death on the globe is cancer. The fourth most frequent malignancy in women worldwide is cervical cancer. Several cancer patients are remaining incurable due to the emergence of medication resistance, despite notable advances in cancer research over the previous few decades. The importance of natural sources as possible therapeutic candidates may be significant. Anthraquinones are one of the many chemical families of natural products, and they stand out for their wide range of structural variations, notable biological activity, and low toxicity. A natural substance called emodin, an anthraquinone derivative, is present in the roots and rhizomes of several plants. This substance has demonstrated antineoplastic, anti-inflammatory, antiangiogenic, and antiproliferative properties. It is also capable of preventing cancer spread and can reverse cancer cells’ multidrug resistance. Emodin, a broad-spectrum inhibitor of cancer cells, have anticancer properties in many different types of biological pathways. These molecular mechanisms in cancer cells include the suppression of cell growth and proliferation, deterioration of the cell cycle arrest, the start of apoptosis, antimetastasis, and antiangiogenic impact. Therefore, the aim of the present review summarised the antiproliferative and anticarcinogenic qualities of cervical cancer of emodin.

The objective of this study is to evaluate the bioequivalence of generic sitagliptin tablets from different manufacturers using in-vitro dissolution study under biowaiver conditions through UV Spectroscopy, and compare them with the innovator brand. The dissolution media consisted of three different buffers with varying pH levels, including HCl Buffer pH 2.0, Phosphate Buffer pH 4.0, and Phosphate Buffer pH 7.2. The dissolution process was conducted using a USP type-2 dissolution apparatus with a 900 ml basket. The rotational speed of the paddle was set at 50 RPM, while maintaining a temperature of 37.5°C +/- 2°C. Samples were collected at four different intervals as recommended by the USFDA, which were 15, 30, 45, and 60 minutes. Validation parameters such as Accuracy, Precision, Linearity, LOD, and LOQ were assessed. The dissolution profiles exhibited no significant variability between different brands and within the same brand. Furthermore, the dissolution results of all tablet formulations, including the innovator brand, were analysed using the difference factor (f1) and similarity factor (f2). The findings from this study indicate that both generic brands of sitagliptin tablets meet the USFDA dissolution specifications and can be considered interchangeable.