Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 60
Filtrar
Mais filtros








Base de dados
Intervalo de ano de publicação
1.
Med Chem ; 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38685782

RESUMO

The versatile basic structure of piperazine allows for the development and production of newer bioactive molecules that can be used to treat a wide range of diseases. Piperazine derivatives are unique and can easily be modified for the desired pharmacological activity. The two opposing nitrogen atoms in a six-membered piperazine ring offer a large polar surface area, relative structural rigidity, and more acceptors and donors of hydrogen bonds. These properties frequently result in greater water solubility, oral bioavailability, and ADME characteristics, as well as improved target affinity and specificity. Various synthetic protocols have been reported for piperazine and its derivatives. In this review, we focused on recently published synthetic protocols for the synthesis of the piperazine and its derivatives. The structure-activity relationship concerning different biological activities of various piperazine-containing drugs was also highlighted to provide a good understanding to researchers for future research on piperazines.

2.
Chem Biol Drug Des ; 103(3): e14498, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38453241

RESUMO

The research involves the synthesis of a series of new pyridine analogs 5(i-x) and their evaluation for anti-epileptic potential using in silico and in vivo models. Synthesis of the compounds was accomplished by using the Vilsmeier-Haack reaction principle. AutoDock 4.2 was used for their in silico screening against AMPA (-amino-3-hydroxy-5-methylisoxazole) receptor (PDB ID:3m3f). For in vivo testing, the maximal electroshock seizure (MES) model was used. The physicochemical, pharmacokinetic, drug-like, and drug-score features of all synthesized compounds were assessed using the online Swiss ADME and Protein Plus software. The in silico results showed that all the synthesized compounds 5(i-x) had 1-3 interactions and affinities ranging from -6.5 to -8.0 kJ/mol with the targeted receptor compared to the binding affinities of the standard drug phenytoin and the original ligand of the target (P99), which were -7.6 and -6.8 kJ/mol, respectively. In vivo study results showed that the compound 5-Carbamoyl-2-formyl-1-[2-(4-nitrophenyl)-2-oxo-ethyl]-pyridinium gave 60% protection against epileptic seizures compared to 59% protection afforded by regular phenytoin. All of them met Lipinski's rule of five and had drug-likeness and drug score values of 0.55 and 0.8, respectively, making them chemically and functionally like phenytoin. According to the findings of the studies, the synthesized derivatives have the potential to be employed as a stepping stone in the development of novel anti-epileptic drugs.


Assuntos
Anticonvulsivantes , Fenitoína , Humanos , Ácido alfa-Amino-3-hidroxi-5-metil-4-isoxazol Propiônico/uso terapêutico , Fenitoína/uso terapêutico , Anticonvulsivantes/farmacologia , Anticonvulsivantes/uso terapêutico , Convulsões/tratamento farmacológico , Convulsões/prevenção & controle , Piridinas/uso terapêutico
3.
J Asian Nat Prod Res ; 26(6): 663-680, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38373215

RESUMO

Kinase is an enzyme that helps in the phosphorylation of the targeted molecules and can affect their ability to react with other molecules. So, kinase influences metabolic reactions like cell signaling, secretory processes, transport of molecules, etc. The increased activity of certain kinases may cause various types of cancer, i.e. leukemia, glioblastoma, and neuroblastomas. So, the growth of particular cancer cells can be prevented by the inhibition of the kinase responsible for those cancers. Natural products are the key resources for the development of new drugs where approximately 60% of anti-tumor drugs are being developed with the same including specific kinase dwellers. This study comprised molecular interactions of various molecules (obtained from natural sources) as kinase inhibitors for the treatment of cancer. It is expected that by analyzing the skeleton behavior, the process of action, and the body-related activity of these organic products, new cancer-avoiding molecules can be developed.


Assuntos
Antineoplásicos , Produtos Biológicos , Neoplasias , Inibidores de Proteínas Quinases , Humanos , Produtos Biológicos/farmacologia , Produtos Biológicos/química , Inibidores de Proteínas Quinases/farmacologia , Inibidores de Proteínas Quinases/química , Estrutura Molecular , Neoplasias/tratamento farmacológico , Antineoplásicos/farmacologia , Antineoplásicos/química
4.
Cent Nerv Syst Agents Med Chem ; 24(1): 45-56, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38305393

RESUMO

Alzheimer's disease (AD) is an onset and incurable neurodegenerative disorder that has been linked to various genetic, environmental, and lifestyle factors. Recent research has revealed several potential targets for drug development, such as the prevention of Aß production and removal, prevention of tau hyperphosphorylation, and keeping neurons alive. Drugs that target numerous ADrelated variables have been developed, and early results are encouraging. This review provides a concise map of the different receptor signaling pathways associated with Alzheimer's Disease, as well as insight into drug design based on these pathways. It discusses the molecular mechanisms of AD pathogenesis, such as oxidative stress, aging, Aß turnover, thiol groups, and mitochondrial activities, and their role in the disease. It also reviews the potential drug targets, in vivo active agents, and docking studies done in AD and provides prospects for future drug development. This review intends to provide more clarity on the molecular processes that occur in Alzheimer's patient's brains, which can be of use in diagnosing and preventing the condition.


Assuntos
Doença de Alzheimer , Doença de Alzheimer/tratamento farmacológico , Doença de Alzheimer/metabolismo , Humanos , Animais , Estresse Oxidativo/efeitos dos fármacos , Estresse Oxidativo/fisiologia , Peptídeos beta-Amiloides/metabolismo , Peptídeos beta-Amiloides/antagonistas & inibidores , Terapia de Alvo Molecular/métodos , Proteínas tau/metabolismo , Proteínas tau/antagonistas & inibidores , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/fisiologia
5.
Daru ; 32(1): 379-419, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38225520

RESUMO

PURPOSE: Chronic diseases often hinder the natural healing process, making wound infections a prevalent clinical concern. In severe cases, complications can arise, potentially leading to fatal outcomes. While allopathic treatments offer numerous options for wound repair and management, the enduring popularity of herbal medications may be attributed to their perceived minimal side effects. Hence, this review aims to investigate the potential of herbal remedies in efficiently treating wounds, presenting a promising alternative for consideration. METHODS: A literature search was done including research, reviews, systematic literature review, meta-analysis, and clinical trials considered. Search engines such as Pubmed, Google Scholar, and Scopus were used while retrieving data. Keywords like Wound healing 'Wound healing and herbal combinations', 'Herbal wound dressing', Nanotechnology and Wound dressing were used. RESULT: This review provides valuable insights into the role of natural products and technology-based formulations in the treatment of wound infections. It evaluates the use of herbal remedies as an effective approach. Various active principles from herbs, categorized as flavonoids, glycosides, saponins, and phenolic compounds, have shown effectiveness in promoting wound closure. A multitude of herbal remedies have demonstrated significant efficacy in wound management, offering an additional avenue for care. The review encompasses a total of 72 studies, involving 127 distinct herbs (excluding any common herbs shared between studies), primarily belonging to the families Asteraceae, Fabaceae, and Apiaceae. In research, rat models were predominantly utilized to assess wound healing activities. Furthermore, advancements in herbal-based formulations using nanotechnology-based wound dressing materials, such as nanofibers, nanoemulsions, nanofiber mats, polymeric fibers, and hydrogel-based microneedles, are underway. These innovations aim to enhance targeted drug delivery and expedite recovery. Several clinical-based experimental studies have already been documented, evaluating the efficacy of various natural products for wound care and management. This signifies a promising direction in the field of wound treatment. CONCLUSION: In recent years, scientists have increasingly utilized evidence-based medicine and advanced scientific techniques to validate the efficacy of herbal medicines and delve into the underlying mechanisms of their actions. However, there remains a critical need for further research to thoroughly understand how isolated chemicals extracted from herbs contribute to the healing process of intricate wounds, which may have life-threatening consequences. This ongoing research endeavor holds great promise in not only advancing our understanding but also in the development of innovative formulations that expedite the recovery process.


Assuntos
Plantas Medicinais , Cicatrização , Cicatrização/efeitos dos fármacos , Humanos , Plantas Medicinais/química , Animais , Fitoterapia , Bandagens , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Extratos Vegetais/uso terapêutico
6.
Recent Pat Anticancer Drug Discov ; 19(3): 257-267, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37497702

RESUMO

Among the deadliest diseases, cancer is characterized by tumors or an increased number of a specific type of cell because of uncontrolled divisions during mitosis. Researchers in the current era concentrated on the development of highly selective anticancer medications due to the substantial toxicities of conventional cytotoxic drugs. Several marketed drug molecules have provided resistance against cancer through interaction with certain targets/growth factors/enzymes, such as Telomerase, Histone Deacetylase (HDAC), Methionine Aminopeptidase (MetAP II), Thymidylate Synthase (TS), Glycogen Synthase Kinase-3 (GSK), Epidermal Growth Factor (EGF), Vascular Endothelial Growth Factor (VEGF), Focal Adhesion Kinase (FAK), STAT3, Thymidine phosphorylase, and Alkaline phosphatase. The molecular structure of these drug molecules contains various heterocyclic moieties that act as pharmacophores. Recently, 1,3,4- oxadiazole (five-membered heterocyclic moiety) and its derivatives attracted researchers as these have been reported with a wide range of pharmacological activities, including anti-cancer. 1,3,4- oxadiazoles have exhibited anti-cancer potential via acting on any of the above targets. The presented study highlights the synthesis of anti-cancer 1,3,4-oxadiazoles, their mechanism of interactions with targets, along with structure-activity relationship concerning anti-cancer potential.


Assuntos
Antineoplásicos , Neoplasias , Humanos , Oxidiazóis/farmacologia , Oxidiazóis/uso terapêutico , Fator A de Crescimento do Endotélio Vascular , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Estrutura Molecular , Relação Estrutura-Atividade , Neoplasias/tratamento farmacológico
7.
Cell Biochem Biophys ; 82(1): 15-34, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38048024

RESUMO

Cystic fibrosis is a genetic disorder inherited in an autosomal recessive manner. It is caused by a mutation in the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene on chromosome 7, which leads to abnormal regulation of chloride and bicarbonate ions in cells that line organs like the lungs and pancreas. The CFTR protein plays a crucial role in regulating chloride ion flow, and its absence or malfunction causes the production of thick mucus that affects several organs. There are more than 2000 identified mutations that are classified into seven categories based on their dysfunction mechanisms. In this article, we have conducted a thorough examination and consolidation of the diverse array of tests essential for the quantification of CFTR functionality. Furthermore, we have engaged in a comprehensive discourse regarding the recent advancements in CFTR modulator therapy, a pivotal approach utilized for the management of cystic fibrosis, alongside its concomitant relevance in evaluating CFTR functionality.


Assuntos
Fibrose Cística , Humanos , Fibrose Cística/tratamento farmacológico , Fibrose Cística/genética , Regulador de Condutância Transmembrana em Fibrose Cística/genética , Regulador de Condutância Transmembrana em Fibrose Cística/metabolismo , Cloretos/metabolismo , Mutação , Transdução de Sinais
8.
Chem Biol Drug Des ; 103(1): e14384, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37919259

RESUMO

Breast cancer is a common and deadly disease, so there is a constant need for research to find efficient targets and therapeutic approaches. Breast cancer can be classified on a molecular and histological base. Breast cancer can be divided into ER (estrogen receptor)-positive and ER-negative, HER2 (human epidermal growth factor receptor2)-positive and HER2-negative subtypes based on the presence of specific biomarkers. Targeting hormone receptors, such as the HER2, progesterone receptor (PR), and ER, is very significant and plays a vital role in the onset and progression of breast cancer. Endocrine treatments and HER2-targeted drugs are examples of targeted therapies now being used against these receptors. Emerging immune-based medicines with promising outcomes in the treatment of breast cancer include immune checkpoint inhibitors, cancer vaccines, and adoptive T-cell therapy. It is also explored how immune cells and the tumor microenvironment affect breast cancer development and treatment response. The major biochemical pathways, signaling cascades, and DNA repair mechanisms that are involved in the development and progression of breast cancer, include the PI3K/AKT/mTOR system, the MAPK pathway, and others. These pathways are intended to be inhibited by a variety of targeted drugs, which are then delivered with the goal of restoring normal cellular function. This review aims to shed light on types of breast cancer with the summarization of different therapeutic approaches which can target different pathways for tailored medicines and better patient outcomes.


Assuntos
Neoplasias da Mama , Humanos , Feminino , Neoplasias da Mama/tratamento farmacológico , Fosfatidilinositol 3-Quinases/metabolismo , Receptores de Estrogênio/metabolismo , Transdução de Sinais , Receptores de Progesterona/genética , Receptores de Progesterona/metabolismo , Receptores de Progesterona/uso terapêutico , Receptor ErbB-2/metabolismo , Microambiente Tumoral
9.
Artigo em Inglês | MEDLINE | ID: mdl-38047361

RESUMO

BACKGROUND: Type 2 diabetes mellitus constitutes approximately 90% of all reported forms of diabetes mellitus. Insulin resistance characterizes this manifestation of diabetes. The prevalence of this condition is commonly observed in patients aged 45 and above; however, there is an emerging pattern of younger cohorts receiving diagnoses primarily attributed to lifestyle-related variables, including obesity, sedentary behavior, and poor dietary choices. The enzyme SGLT2 exerts a negative regulatory effect on insulin signaling pathways, resulting in the development of insulin resistance and subsequent elevation of blood glucose levels. The maintenance of glucose homeostasis relies on the proper functioning of insulin signaling pathways, while disruptions in insulin signaling can contribute to the development of type 2 diabetes. OBJECTIVE: Our study aimed to investigate the role of SGLT2. This enzyme interferes with insulin signaling pathways and identifies potential SGLT2 inhibitors as a treatment for managing type 2 diabetes. METHODS: We screened the Maybridge HitDiscover database to identify potent hits followed by druglikeness, Synthetic Accessibility, PAINS alert, toxicity estimation, ADME assessment, and Consensus Molecular docking. RESULTS: The screening process led to the identification of three molecules that demonstrated significant binding affinity, favorable drug-like properties, effective ADME, and minimal toxicity. CONCLUSION: The identified molecules could manage T2DM effectively by inhibiting SGLT2, providing a promising avenue for future therapeutic strategies.

10.
Artigo em Inglês | MEDLINE | ID: mdl-37997805

RESUMO

In recent years, dysregulation of the notch pathway has been associated with the development and progression of various cancers. Notch signaling is involved in several cellular processes such as proliferation, differentiation, apoptosis, and angiogenesis, and its abnormal activation can lead to uncontrolled cell growth and tumorigenesis. In various cancers, the Notch pathway has been shown to have both tumor-promoting and tumor-suppressive effects, depending on the context and stage of cancer development. In some cases, activation of the Notch pathway has been shown to promote tumor growth and progression, while in others it has been shown to inhibit tumor growth and induce cell death. The Notch pathway has been found to be particularly important in the development of leukaemia, breast cancer, lung cancer and pancreatic cancer. In leukaemia, the Notch pathway is often activated, which promotes the survival and proliferation of leukaemia cells. In breast cancer, Notch signaling has been implicated in tumor initiation and maintenance of cancer stem cells. In cervical cancer, the Notch signaling pathway has been shown to play a crucial role in the development of the disease. In lung cancer, Notch activation promotes cancer cell proliferation and migration, while in pancreatic cancer, Notch signaling is associated with tumor initiation and resistance to chemotherapy. Understanding the role of the Notch pathway in cancer development and progression may provide new opportunities for the development of targeted therapies for cancer treatment. Several drugs targeting the Notch pathway are currently in preclinical or clinical development and may hold promise for anticancer therapy in the future.

11.
Artigo em Inglês | MEDLINE | ID: mdl-38031767

RESUMO

BACKGROUND: Considering the limited number of current effective treatments, Multidrug- Resistant (MDR) illnesses have grown to be a serious concern to public health. It has become necessary to look for new antimicrobial drugs because of the emergence of resistance to numerous kinds of antibiotics. The use of flavonoids is one phytotherapeutic strategy that has been researched as a potential remedy for this issue. Secondary plant compounds called flavonoids have been found to have an antibacterial effect against resistant microorganisms. OBJECTIVE: This review seeks to give readers a glimpse into contemporary studies on flavonoids' potential to fight MDR infections. METHODS: A systematic search was conducted on electronic databases (PubMed, Scopus, and Google Scholar) using relevant keywords such as flavonoids, MDR infections, antimicrobial activity, and resistance microbes. Studies that investigated the antimicrobial activity of flavonoids against resistant microbes were included in this review. RESULTS: Most research found that flavonoids have antibacterial efficacy against resistant microorganisms, and some also showed that they have synergistic benefits with traditional antibiotics. The flavonoids quercetin, kaempferol, apigenin, and luteolin were the most often investigated ones. According to research, flavonoids affect microbial gene expression, inhibit microbial enzymes, and disrupt the integrity of microbial cell membranes. Additionally, a few studies have noted the flavonoids' low toxicity and safety. CONCLUSION: For the treatment of infections that are resistant to many drugs, flavonoids constitute a promising class of phytotherapeutic agents. To develop flavonoid-based treatment methods for treating MDR illnesses and assess the potential of flavonoids as adjuvants to conventional antimicrobial drugs, more study is required.

12.
Curr Pharm Des ; 29(39): 3137-3153, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38031774

RESUMO

One-third of people will be diagnosed with cancer at some point in their lives, making it the second leading cause of death globally each year after cardiovascular disease. The complex anticancer molecular mechanisms have been understood clearly with the advent of improved genomic, proteomic, and bioinformatics. Our understanding of the complex interplay between numerous genes and regulatory genetic components within cells explaining how this might lead to malignant phenotypes has greatly expanded. It was discovered that epigenetic resistance and a lack of multitargeting drugs were highlighted as major barriers to cancer treatment, spurring the search for innovative anticancer treatments. It was discovered that epigenetic resistance and a lack of multitargeting drugs were highlighted as major barriers to cancer treatment, spurring the search for innovative anticancer treatments. Many popular anticancer drugs, including irinotecan, vincristine, etoposide, and paclitaxel, have botanical origins. Actinomycin D and mitomycin C come from bacteria, while bleomycin and curacin come from marine creatures. However, there is a lack of research evaluating the potential of algae-based anticancer treatments, especially in terms of their molecular mechanisms. Despite increasing interest in the former, and the promise of the compounds to treat tumours that have been resistant to existing treatment, pharmaceutical development of these compounds has lagged. Thus, the current review focuses on the key algal sources that have been exploited as anticancer therapeutic leads, including their biological origins, phytochemistry, and the challenges involved in converting such leads into effective anticancer drugs.


Assuntos
Antineoplásicos , Produtos Biológicos , Neoplasias , Humanos , Proteômica , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Neoplasias/tratamento farmacológico , Desenvolvimento de Medicamentos , Plantas , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico
13.
Curr Top Med Chem ; 23(25): 2394-2415, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37828679

RESUMO

BACKGROUND: Piperine is a natural compound found in black pepper that has been traditionally used for various therapeutic purposes. In the ayurvedic system of medication there is a lot of evidence which shows that the piperine is widely used for different therapeutic purpose. In recent years, there has been an increasing interest in the pharmacological and therapeutic potential of piperine and its derivatives in modern medicine. In order to increase the bioavailability and therapeutic effectiveness of piperine and its analogs, researchers have been looking at various extraction methods and synthesis approaches. Many studies have been conducted in this area because of the promise of piperine as a natural substitute for synthetic medications. OBJECTIVES: The objective of this review article is to provide an up-to-date analysis of the literature on the synthesis of piperine analogs, including their extraction techniques and various biological activities such as antihypertensive, antidiabetic, insecticidal, antimicrobial, and antibiotic effects. Additionally, the review aims to discuss the potential of piperine in modern medicine, given its traditional use in various medicinal systems such as Ayurveda, Siddha, and Unani. The article also provides a comprehensive analysis of the plant from which piperine is derived. CONCLUSION: This review article provides a thorough examination of piperine and the source plant. The best extraction technique for the extraction of piperine and the synthesis of its analogs with various biological activities, including antihypertensive, antidiabetic, insecticidal, antibacterial, and antibiotic properties, are covered in the article. This review aims to provide an updated analysis of the literature on the synthesis of piperine analogs.


Assuntos
Alcaloides , Anti-Hipertensivos , Alcaloides/farmacologia , Alcamidas Poli-Insaturadas/farmacologia , Benzodioxóis/farmacologia , Hipoglicemiantes , Antibacterianos
14.
Curr Org Synth ; 2023 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-37608650

RESUMO

Among the many reports published on strategies applicable to synthesizing pyrazolines and its analogs, The 1,3-dipolar cycloaddition offers a remarkably wide range of utility. Many 1,3-dipolar cycloaddition reactions used for the synthesis of pyrazolines provide better selectivity, eco-friendly, and less expensive chemical processes. In the presented study, we have reviewed various recently adopted strategies for the synthesis of pyrazoline, which followed the 1,3-dipolar cycloaddition reactions mechanism and classified them based on starting materials such as nitrile imines, diazo compounds, different zwitter ions, chalcones, and isoprene units. The manuscript also focused on the synthesis of pyrazolines starting from Seyferth-Gilbert reagents (SGR) and Psilostachyin (PSH) reagents. We hope this work will help those engaged or have plans to research pyrazoline or its analogs, as synthetic protocols based on starting material are rarely available for pyrazolines. Thus, this article holds a valuable complement to the development of newer pyrazoline and its derivatives.

15.
Curr Mol Med ; 2023 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-37496249

RESUMO

Nicotine, minodronic acid, nicotinamide (niacin), zolpidem, zolimidine, and other pyridine-based chemicals play vital roles in medicine and biology. Pyridine-containing drugs are widely available on the market to treat a wide range of human ailments. As a result of these advances, pyridine research is continually expanding, and there are now higher expectations for how it may aid in the treatment of numerous ailments. This evaluation incorporates data acquired from sources, like PubMed, to provide a thorough summary of the approved drugs and bioactivity data for compounds containing pyridine. Most of the reactions discussed in this article will provide readers with a deeper understanding of various pyridine-related examples, which is necessary for the creation of copper catalysis-based synthetic processes that are more accessible, secure, environmentally friendly, and practical, and that also have higher accuracy and selectivity. This paper also discusses significant innovations in the multi-component copper-catalyzed synthesis of N-heterocycles (pyridine), with the aim of developing precise, cost-effective, and environmentally friendly oxygenation and oxidation synthetic methods for the future synthesis of additional novel pyridine base analogs. Therefore, the review article will serve as a novel platform for researchers investigating copper-based pyridine compounds.

16.
Nutrients ; 15(9)2023 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-37432240

RESUMO

The Wnt pathway has been recognized for its crucial role in human development and homeostasis, but its dysregulation has also been linked to several disorders, including cancer. Wnt signaling is crucial for the development and metastasis of several kinds of cancer. Moreover, members of the Wnt pathway have been proven to be effective biomarkers and promising cancer therapeutic targets. Abnormal stimulation of the Wnt signaling pathway has been linked to the initiation and advancement of cancer in both clinical research and in vitro investigations. A reduction in cancer incidence rate and an improvement in survival may result from targeting the Wnt/ß-catenin pathway. As a result, blocking this pathway has been the focus of cancer research, and several candidates that can be targeted are currently being developed. Flavonoids derived from plants exhibit growth inhibitory, apoptotic, anti-angiogenic, and anti-migratory effects against various malignancies. Moreover, flavonoids influence different signaling pathways, including Wnt, to exert their anticancer effects. In this review, we comprehensively evaluate the influence of flavonoids on cancer development and metastasis by focusing on the Wnt/ß-catenin signaling pathway, and we provide evidence of their impact on a number of molecular targets. Overall, this review will enhance our understanding of these natural products as Wnt pathway modulators.


Assuntos
Neoplasias , Via de Sinalização Wnt , Humanos , Flavonoides/farmacologia , Flavonoides/uso terapêutico , beta Catenina , Neoplasias/tratamento farmacológico , Imunoterapia
17.
Chem Biol Drug Des ; 102(4): 907-920, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37277317

RESUMO

1,2,5-oxadiazole belongs to five-membered heterocyclic compounds with two nitrogen and one oxygen atom. In comparison with other heterocyclic moieties, 1,2,5-oxadiazoles moiety is considered as underprivileged as it attracted little attention of the researchers although lot of scopes and possible applications in medicinal, material and agriculture science. 1,2,5-oxadiazole and its derivatives have been reported as good pharmacophores as carbonic anhydrase inhibitors, antibacterial, vasodilating agents, antimalarial, anticancer, etc. In the presented manuscript, we reviewed granted patents and different synthetic strategies which have been reported for the synthesis of 1,2,5-oxadiazoles such as cycloaddition, dimerization, cyclodehydration, condensation, thermolysis, nitration, oxidation and ring-conversion. These synthetic methods have also been analysed for their merits and demerits. The manuscript also highlighted various applications of 1,2,5-oxadiazole and its derivatives. We hope that researchers across the scientific streams will be benefitted from the presented review articles for designing their work related to 1,2,5-oxadiazoles.


Assuntos
Antimaláricos , Oxidiazóis , Oxidiazóis/farmacologia , Inibidores da Anidrase Carbônica , Antimaláricos/farmacologia , Oxirredução , Relação Estrutura-Atividade
18.
Artigo em Inglês | MEDLINE | ID: mdl-37123086

RESUMO

The liver is a crucial organ that is involved in various kinds of metabolic activity and a very stable accessory gland for the digestive system. Long-term or persistent inflammation and oxidative stress due to any reasons have a substantial impact on the beginning and continuation of chronic diseases such as hepatocellular carcinoma, liver cirrhosis, liver fibrosis, and other hepatic conditions. There are many sources which can help the liver to be healthy and enhance its metabolic potential of the liver. Since the diet is rich origin of bioactive along with antioxidant chemicals including flavonoids and polyphenols, it can control different stages of inflammation and hepatic diseases. Numerous food sources, notably vegetables, nuts, fruits, cereals, beverages, and herbal medicinal plants, are rich in bioactive chemicals called flavonoids and their derivatives like Flavones, Anthocyanins, Iso-flavonoid, Flavanones, Flavanols, and Flavan-3-ols. Most recently occurred research on flavonoids has demonstrated that they can regulate hepatoprotective properties. This is because they are essential parts of pharmaceutical and nutraceutical products due to their hepatoprotective, antioxidative, and immune-modulating characteristics. However, the characteristics of their hepatoprotective impact remain unclear. The purpose of this comprehensive review is to survey the flavonoid structure and enriched sources for their hepatoprotective and antioxidant effects concerning liver toxicity or injury.

19.
Top Curr Chem (Cham) ; 381(3): 12, 2023 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-37029841

RESUMO

It has been established that pyrazolines and their analogs are pharmacologically active scaffolds. The pyrazoline moiety is present in several marketed molecules with a wide range of uses, which has established its importance in pharmaceutical and agricultural sectors, as well as in industry. Due to its broad-spectrum utility, scientists are continuously captivated by pyrazolines and their derivatives to study their chemistry. Pyrazolines or their analogs can be prepared by several synthesis strategies, and the focus will always be on new greener and more economical ways for their synthesis. Among these methods, chalcones, hydrazines, diazo compounds, and hydrazones are most commonly applied under different reaction conditions for the synthesis of pyrazoline and its analogs. However, there is scope for other molecules such as Huisgen zwitterions, different metal catalysts, and nitrile imine to be used as starting reagents. The present article consists of recently reported synthetic protocols, pharmacological activities, and the structure-activity relationship of pyrazoline and its derivatives, which will be very useful to researchers.


Assuntos
Chalconas , Relação Estrutura-Atividade , Chalconas/química , Hidrazonas , Hidrazinas/farmacologia , Hidrazinas/química
20.
Curr Comput Aided Drug Des ; 19(6): 438-450, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36748813

RESUMO

BACKGROUND: The compounds containing heterocyclic cores with O, N and/or S atoms are bioactive and valuable molecules in the field of drug discovery and development. There are several applications in different areas for the molecules having oxadiazole moiety in their structures viz. herbicides and corrosion inhibitors, electron-transport materials, polymers and luminescent materials. Hence, demand for new anticonvulsant, antibacterial and analgesic agents has turned into an imperative assignment in the area of medicinal chemistry to improve therapeutic efficacy as well as safety. METHODS: In the journey of new anticonvulsive, antibacterial and analgesic molecules with better potency, some newer Oxadiazole analogues were attained by a sequence of synthetic steps with the substituted acrylic acids. IR and 1H-NMR spectral data were used for the structure elucidation of obtained chemical compounds. In this perspective, the anticonvulsant, antibacterial and analgesic activities were evaluated for synthetically obtained newer chemical moieties. Furthermore, a molecular docking study was performed to elucidate the binding modes of synthesized ligands in the active pockets of Cox-1/2 enzymes, DNA Gyrase and GABA inhibitors. RESULTS: It has been observed that all the synthetic molecules showed good analgesic activity while A1 molecule demonstrated better analgesic activity. In the case of anticonvulsant and antibacterial activity among other ligands, C1 molecule possessed profound anticonvulsant activity whereas B1 molecule showed maximum antibacterial activity and molecular docking study also endorsed the same consequences. CONCLUSION: It might be recognized from the present study that prepared compounds are distinctive in lieu of their structure and noticeable biological activity. In the quest for a newer group of anticonvulsant, antibacterial and analgesic molecules, these compounds might be useful for the society.


Assuntos
Anticonvulsivantes , Oxidiazóis , Simulação de Acoplamento Molecular , Oxidiazóis/farmacologia , Ligantes , Antibacterianos/farmacologia , Analgésicos/farmacologia , Relação Estrutura-Atividade
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA