Month: December 2022

Tsanni, Abdullahi published the artcileAfrican scientists race to test COVID drugs – but face major hurdles, Safety of 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, the main research area is remdesivir molnupiravir antiviral agent drug repurposing COVID19; Developing world; Medical research; SARS-CoV-2.

In a bid to stave off looming disaster, scientists are trying to repurpose drugs used for malaria and other diseases, but infrastructure and recruitment challenges stymie progress. The continent desperately needs drug treatments for COVID-19 – not just vaccines – to avert a lingering disaster. But testing them has not been easy. If effective, these treatments may prevent severe disease and hospitalization.

Nature (London, United Kingdom) published new progress about Antimalarials. 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, Safety of 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Nandi, Sisir published the artcileThe Antiviral and Antimalarial Drug Repurposing in Quest of Chemotherapeutics to Combat COVID-19 Utilizing Structure-Based Molecular Docking, Recommanded Product: 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, the main research area is COVID antiviral antimalarial drug chemotherapeutic mol docking; COVID-19; drug repurposing; prediction of lead compounds.; structure-based docking.

The novel coronavirus disease (COVID-19) is caused by a new strain (SARS-CoV-2) that erupted in 2019. Nowadays, it is a great threat that claims uncountable lives worldwide. There is no specific chemotherapeutics developed yet to combat COVID-19. Therefore, scientists have been devoted to the quest of the medicine that can cure COVID-19. Existing antivirals, such as ASC09/ritonavir, lopinavir/ritonavir with or without umifenovir in combination with antimalarial chloroquine or hydroxychloroquine, have been repurposed to fight the current coronavirus epidemic. Exact biochem. mechanisms of these drugs towards COVID-19 have not been discovered to date. In-silico mol. docking can predict the mode of binding to sort out the existing chemotherapeutics having a potential affinity towards inhibition of the COVID-19 target. An attempt has been made in the present work to carry out docking analyses of 34 drugs, including antivirals and antimalarials, to explain explicitly the mode of interactions of these ligands towards the COVID-19protease target. 13 Compounds having good binding affinity have been predicted towards protease binding inhibition of COVID-19. Our in silico docking results have been confirmed by current reports from clin. settings through the citation of suitable exptl. in vitro data available in the published literature.

Combinatorial Chemistry & High Throughput Screening published new progress about Antimalarials. 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, Recommanded Product: 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Zimmermann, Lisa published the artcileBenchmarking the in Vitro Toxicity and Chemical Composition of Plastic Consumer Products, SDS of cas: 111-11-5, the main research area is toxicity chem composition plastic consumer product.

Plastics are known sources of chem. exposure and few, prominent plastic-associated chems., such as bisphenol A and phthalates, have been thoroughly studied. However, a comprehensive characterization of the complex chem. mixtures present in plastics is missing. In this study, we benchmark plastic consumer products, covering eight major polymer types, according to their toxicol. and chem. signatures using in vitro bioassays and non-target high resolution mass spectrometry. Most (74 %) of the 34 plastic extracts contained chems. triggering at least one endpoint, including baseline toxicity (62 %), oxidative stress (41 %), cytotoxicity (32 %), estrogenicity (12 %) and antiandrogenicity (27 %). In total, we detected 1411 features, tentatively identified 213, including monomers, additives and non-intentionally added substances, and prioritized 25 chems. Extracts of polyvinyl chloride (PVC) and polyurethane (PUR) induced the highest toxicity whereas polyethylene terephthalate (PET) and high-d. polyethylene (HDPE) caused no or low toxicity. High baseline toxicity was detected in all “”bioplastics”” made of polylactic acid (PLA). The toxicities of low-d. polyethylene (LDPE), polystyrene (PS) and polypropylene (PP) varied. Our study demonstrates that consumer plastics contain compounds that are toxic in vitro but remain largely unidentified. Since the risk of unknown compounds cannot be assessed, this poses a challenge to manufacturers, public health authorities and researchers alike. However, we also demonstrate that products not inducing toxicity are already on the market.

Environmental Science & Technology published new progress about Antiandrogens. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, SDS of cas: 111-11-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Srikala, S. Vinaya published the artcileFormulation, characterization and antihelminthic activity testing of nitazoxanide superporous hydrogel tablets, Application of 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, the main research area is antihelminthic activity nitazoxanide superporous hydrogel tablets.

In the pharmaceutical field controlled release products have the ability to maintain desired medicament concentration or a longer period of time. Certain drugs are relatively insoluble in water and have high dose requirements that render unsuitable formulation difficulties in sustained release formulations. Nitazoxanide which is a high dose water insoluble antiprotozoal drug was formulated with the aim. To modulate gastro-retentive dosage form based on the superporous hydrogel composites. Foaming technique was used in the preparation of SPH composites. The superporous hydrogels were extremely sensitive to pH of swelling media and good porosity. Superporous hydrogels tablets of nitazoxanide showed good pre-compressional and post-compressional properties. Formulation X is the best formulation containing chitosan, polyvinyl alc., formaldehyde, exhibited good swelling ratio. The compatibility studies were performed by Fourier Transform IR (FT-IR) Spectroscopic Studies, Differential Scanning Calorimetry Studies (DSC). All formulations were evaluated for stability, drug content, and kinetic drug release & in-vitro drug release profile. It was concluded that the proposed gastro-retention drug delivery provides a different supply of nitazoxanide directly to the stomach.

Journal of Drug Delivery and Therapeutics published new progress about Anthelmintics. 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, Application of 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Pinto, Erika Gracielle published the artcileTargeting intracellular Leishmania (L.) infantum with nitazoxanide entrapped into phosphatidylserine-nanoliposomes: An experimental study, Formula: C12H9N3O5S, the main research area is nitazoxanide nanolipossome delivery system phosphatidylserine leishmaniasis Leishmania; Leishmania; Liposomes; Macrophage interaction; Nitazoxanide; Therapy.

Leishmaniasis is a parasitic neglected tropical disease and result in a broad spectrum of clin. manifestations, ranging from a single ulceration to a progressive and fatal visceral disease. Comprising a limited and highly toxic therapeutic arsenal, new treatments are urgently needed. Targeting delivery of drugs has been a promising approach for visceral leishmaniasis (VL). Phosphatidylserine-liposomes have demonstrated superior efficacy in VL, targeting intracellular parasites in host cells through macrophage scavenger receptors. In this work, we investigated the in vitro and in vivo efficacy of the antihelminthic drug nitazoxanide in a nanoliposomal formulation against Leishmania (L.) infantum. Physicochem. parameters of liposomes containing nitazoxanide (NTZ-LP) were determined by dynamic light scattering and small angle X-ray scattering. The efficacy of the formulation was verified in an intracellular amastigote model and in an exptl. hamster model. Our findings showed that NTZ-LP was able to eliminate the amastigotes inside the host cell with an IC50 value of 16μM. NTZ-LP was labeled a fluorescent probe and by spectrofluorimetry, we observed that the infected macrophages internalized similar levels of the drug to the uninfected cells. The confocal microscopy images confirmed the uptake and demonstrated a diffuse distribution of the NTZ-LP in the cytoplasm of Leishmania-infected macrophages, with the vesicles in a closer proximity to the parasites. For the in vivo efficacy, the liposomal NTZ-LP was administrated i.p. to Leishmania-infected hamsters for 10 consecutive days at 2 mg/kg/day. By qPCR we demonstrated a reduction of the parasite burden by 82% and 50% in the liver (p < 0.05) and spleen (p < 0.05), resp. NTZ (non-liposomal) was administered at 100 mg/kg/day per oral (p.o.) for the same period, but demonstrated no efficacy. This liposomal formulation ensured a targeting delivery of NTZ to the intracellular parasites, resulting in an good efficacy at a low dose in animals, and it may represent a new candidate therapy for VL. Chemico-Biological Interactions published new progress about Anthelmintics. 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, Formula: C12H9N3O5S.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Clarke, Naomi E. published the artcileEfficacy of anthelminthic drugs and drug combinations against soil-transmitted helminths: a systematic review and network meta-analysis, Product Details of C12H9N3O5S, the main research area is meta analysis soil transmitted helminth anthelminthic drug.

Meta-anal. of periodic mass distribution of benzimidazole anthelminthic drugs is the key strategy to control soil-transmitted helminths (STHs) globally. However, benzimidazoles have low efficacy against Trichuris trichiura, and there are concerns about benzimidazole resistance potentially emerging in humans. Therefore, identifying alternative drug regimens is a pressing priority. We present a systematic review and network meta-anal. comparing the efficacy of 21 different anthelminthic drug regimens, including standard, novel, and combination treatments. We searched PubMed, Medline, Embase, Web of Science, and Cochrane databases and identified studies comparing anthelminthic treatments to each other or placebo. The outcomes calculated were relative risk (RR) of cure and difference in egg reduction rates (dERR). We used an automated generalized pairwise modeling framework to generate mixed treatment effects against a common comparator, the current standard treatment (single-dose albendazole). Our search identified 4876 studies, of which 114 were included in the meta-anal. Results identified several drug combinations with higher efficacy than single-dose albendazole for T. trichiura, including albendazole-ivermectin (RR of cure, 3.22 [95% confidence interval {CI}, 1.84-5.63]; dERR, 0.97 [95% CI,.21-1.74]), albendazole-oxantel pamoate (RR, 5.07 [95% CI, 1.65-15.59]; dERR, 0.51 [95% CI,.50-.52]), mebendazole-ivermectin (RR, 3.37 [95% CI, 2.20-5.16]), and tribendimidine-oxantel pamoate (RR, 4.06 [95% CI, 1.30-12.64]). There are several promising drug combinations that may enhance the impact of STH control programs on T. trichiura, without compromising efficacy against Ascaris lumbricoides and hookworm. We suggest further, large-scale trials of these drug combinations and consideration of their use in STH control programs where T. trichiura is present.

Clinical Infectious Diseases published new progress about Anthelmintics. 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, Product Details of C12H9N3O5S.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Laudisi, Federica published the artcileRepositioning of anthelmintic drugs for the treatment of cancers of the digestive system, SDS of cas: 55981-09-4, the main research area is review repositioning anthelmintic drug cancer digestive system; STAT3; Wnt/β-catenin; benzimidazole; chemotherapy; colorectal cancer; drug repurposing; hepatocellular carcinoma; niclosamide; rafoxanide; salicylanilide.

Tumors of the digestive system, when combined together, account for more new cases and deaths per yr than tumors arising in any other system of the body and their incidence continues to increase. Despite major efforts aimed at discovering and validating novel and effective drugs against these malignancies, the process of developing such drugs remains lengthy and costly, with high attrition rates. Drug repositioning (also known as drug repurposing), i.e., the process of finding new uses for approved drugs, has been gaining popularity in oncol. drug development as it provides the opportunity to expedite promising anti-cancer agents into clin. trials. Among the drugs considered for repurposing in oncol., compounds belonging to some classes of anthelmintics-a group of agents acting against infections caused by parasitic worms (helminths) that colonize the mammalian intestine-have shown pronounced anti-tumor activities and attracted particular attention due to their ability to target key oncogenic signal transduction pathways. In this review, we summarize and discuss the available exptl. and clin. evidence about the use of anthelmintic drugs for the treatment of cancers of the digestive system.

International Journal of Molecular Sciences published new progress about Anthelmintics. 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, SDS of cas: 55981-09-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Sk, Ramiz Islam published the artcileLipidomic analysis of cancer cell and tumor tissues, HPLC of Formula: 111-11-5, the main research area is lipidomic analysis cancer cell tumor tissue; Cancer; Fatty acid methyl ester; GC-MS; Lipidomics; RP-UPLC-ESIMS.

Due to their role in cellular structure, energetics, and signaling, characterization of changes in cellular and extracellular lipid composition is of key importance to understand cancer biol. In addition, several mass spectrometry-based profiling as well as imaging studies have indicated that lipid mols. may be useful to augment existing biochem. and histopathol. methods for diagnosis, staging, and prognosis of cancer. Therefore, anal. of lipidomic changes associated with cancer cells and tumor tissues can be useful for both fundamental and translational studies. Here, we provide a high-throughput single-extraction based method that can be used for simultaneous lipidomic and metabolomic anal. of cancer cells or healthy or tumor tissue samples. In this chapter, a modified Bligh-Dyer method is described for extraction of lipids followed by anal. of fatty acid composition by gas chromatog.-mass spectrometry (GC-MS) or untargeted lipidomics using electrospray ionization mass spectrometry (ESIMS) coupled with reversephase (RP) ultraperformance liquid chromatog. (UPLC) followed by multivariate data anal. to identify features of interest.

Methods in Molecular Biology (New York, NY, United States) published new progress about Animal tissue. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, HPLC of Formula: 111-11-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Sk, Ramiz Islam published the artcileLipidomic analysis of cancer cell and tumor tissues, Computed Properties of 110-42-9, the main research area is lipidomic analysis cancer cell tumor tissue; Cancer; Fatty acid methyl ester; GC-MS; Lipidomics; RP-UPLC-ESIMS.

Due to their role in cellular structure, energetics, and signaling, characterization of changes in cellular and extracellular lipid composition is of key importance to understand cancer biol. In addition, several mass spectrometry-based profiling as well as imaging studies have indicated that lipid mols. may be useful to augment existing biochem. and histopathol. methods for diagnosis, staging, and prognosis of cancer. Therefore, anal. of lipidomic changes associated with cancer cells and tumor tissues can be useful for both fundamental and translational studies. Here, we provide a high-throughput single-extraction based method that can be used for simultaneous lipidomic and metabolomic anal. of cancer cells or healthy or tumor tissue samples. In this chapter, a modified Bligh-Dyer method is described for extraction of lipids followed by anal. of fatty acid composition by gas chromatog.-mass spectrometry (GC-MS) or untargeted lipidomics using electrospray ionization mass spectrometry (ESIMS) coupled with reversephase (RP) ultraperformance liquid chromatog. (UPLC) followed by multivariate data anal. to identify features of interest.

Methods in Molecular Biology (New York, NY, United States) published new progress about Animal tissue. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Computed Properties of 110-42-9.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ding, Mengbin published the artcileA prodrug hydrogel with tumor microenvironment and near-infrared light dual-responsive action for synergistic cancer immunotherapy, Synthetic Route of 2044-85-1, the main research area is prodrug hydrogel NIR light dualresponsive action synergistic cancer immunotherapy; Chemodynamic therapy; Hydrogels; Immunotherapy; Photodynamic therapy; Prodrugs.

Immunotherapy has been used for cancer treatment, while it faces the common dilemmas of low therapeutic efficacy and serious immunotoxicity. In this study, we report the construction of a tumor microenvironment and near-IR (NIR) light dual-responsive prodrug hydrogel for cancer synergistic immunotherapy in a more effective and safe manner. Such prodrug hydrogels were in-situ formed via calcium-induced gelation of alginate solution containing protoporphyrin IX (PpIX)-modified iron oxide (Fe3O4) nanoparticles and programmed death ligand 1 antibody (aPD-L1) prodrug nanoparticles crosslinked by reactive oxygen species (ROS)-responsive linkers. PpIX served as a photosensitizer to produce singlet oxygen (1O2) under NIR laser irradiation for photodynamic therapy (PDT), and Fe3O4 nanoparticles mediated chemodynamic therapy (CDT) to generate hydroxyl radical (·OH) via Fenton reaction in the tumor microenvironment. In view of the cumulative actions of PDT and CDT, amplified ROS was generated to not only induce immunogenic cell death (ICD), but also destroy ROS-responsive linkers to achieve on-demand release of aPD-L1 from prodrug nanoparticles. Boosted antitumor immunity was elicited in tumor-bearing mice due to the aPD-L1-mediated immune checkpoint blocking. As a result, the prodrug hydrogel-based synergistic immunotherapy could almost treat bilateral tumors and prevent lung and liver metastasis using 4T1 tumor mouse models. This study thus offers a dual-responsive prodrug hydrogel platform for precision cancer immunotherapy. Via calcium-induced gelation of alginate, we constructed a prodrug hydrogel with tumor microenvironment and near-IR light dual-responsive action for synergistic cancer immunotherapy. Such hydrogels can achieve on-demand release of aPD-L1 upon photoactivation in the tumor microenvironment. Through mediating photodynamic and chemodynamic therapy, the prodrug hydrogels can induce enhanced immunogenic cell death and synergistically improve the efficacy of aPD-L1-mediated immune checkpoint blocking. The prodrug hydrogel-based synergistic therapy almost deracinates the primary and distant tumors, and prevents lung and liver metastasis in tumor mouse models.

Acta Biomaterialia published new progress about Animal tissue. 2044-85-1 belongs to class esters-buliding-blocks, name is 2′,7′-Dichloro-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-diyl diacetate, and the molecular formula is C24H14Cl2O7, Synthetic Route of 2044-85-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics