Neuropeptide Y (NPY) is a 36 amino acid peptide amide isolated from porcine brain. The NPY analog, 4-norleucine-NPY was synthesized by a solid-phase method and purified to homogeneity in 20% yield by reverse-phase chromatography. Investigation of the biological properties indicated that the anal...

Targeted molecular imaging has attracted great attention in cancer diagnosis and treatment. However, most clinically used ultrasound contrast agents (UCAs) are non-targeted microbubbles seldom used for cancer imaging. Here, we fabricated fluorescent nanobubbles (NBs) by encapsulation of liquid t...

Short selective neuropeptide Y (NPY) analogs are highly attractive because of their facile synthesis. Based on the reduced-size NPY analog [Pro30, Nle31, Bpa32, Leu34]NPY 28–36 position 32 was identified as a key position to alter the preferential activation pattern of the human neuropeptide Y ...

Immunoreactive atrial natriuretic polypeptide (ANP) was investigated in the pituitary of rats by light and electron microscopy using the indirect immunofluorescence and peroxidase-antiperoxidase techniques. ANP-like immunoreactivity was present in 30–35% of anterior pituitary cells. These cells...

Specific, high-affinity binding sites for atrial natriuretic factor (ANF) were identified and localized in the rat and guinea pig central nervous system (CNS), the cat brainstem, and the rat, guinea pig, cat and human spinal cord using quantitative autoradiographic techniques. The radioligands t...

Atrial natriuretic factor, a peptide found in mammalian cardiac atria, has natriuretic and vasodilatory properties that may be important in the regulation of intravascular volume. To study factors related to its release in human subjects, intracardiac pressures and plasma atrial natriuretic fact...

The present investigation was designed to determine if the atrial natriuretic peptide hormonal system is present within single cell organisms. Paremecium multimicronucleatum were examined with 3 sensitive and specific radioimmunoassays which recognize the N-terminus [amino acids 1–98; proANF(1–...

Nematode parasites infect ∼2 billion people world-wide. Infections are treated and prevented by anthelmintic drugs, some of which act on nicotinic acetylcholine receptors (nAChRs). There is an unmet need for novel therapeutic agents because of concerns about the development of resistance. We ha...

A series of N-benzyl-1-(5-aryl-1,3,4-oxadiazol-2-yl)-1-(1H-pyrrol-2-yl)methanamines were synthesized via one-pot reaction of appropriate benzylamine, pyrrole-2-carbaldehyde, (N-isocyanimino)triphenylphosphorane, and a carboxylic acid. The anti-tumor potential of title compounds was tested agains...

Nickel doped Mn2P2O7 pigments of the formula NixMn2-xP2O7 (x = 0.0.5, 1.0, 1.5, 2.0) were prepared by precipitation and hydrothermal methods and characterized by PXRD, FT-IR, UV-DRS and SEM - EDX. The colour parameters were studied using CIE-LAB parameters. It is noteworthy that when x = 0 reddi...

One challenge in artificial photosynthetic systems is the development of active oxygen evolution catalysts composed of abundant elements. The oxygen evolution activities of manganese pyrophosphate compounds were examined in electrochemical and photochemical experiments. Electrocatalysis using ca...

Cyclopropanone acetal 2a undergoes the one-pot Strecker synthesis under sonication to provide the amino nitrile 8, which after hydrolysis and catalytic hydrogenolysis, gives 1-aminocyclopropanecar☐ylic acid (ACC, 1) in good overall yield.

Background: During the past decade, Taxol has assumed an important role in cancer chemotherapy. The search for novel compounds with a mechanism of action similar to that of Taxol, but with greater efficacy particularly in Taxol-resistant cells, has led to the isolation of new natural products. O...

The design, synthesis, and biological evaluation of a simplified fluorescently labeled discodermolide analogue possessing a dimethylaminobenzoyl fluorophore has been achieved. Stereoselective Suzuki coupling and Horner–Wadsworth–Emmons reaction comprised the key tactics for its construction. T...

An orthogonally twisting tert-butylated 9,9′-bianthracene derivative, namely 10,10′-bis(4-tert-butylphenyl)-9,9′-bianthracene (BAn-(4)-tBu), possessing high thermal stability and high luminescence efficiency was synthesized. The BAn-(4)-tBu emitter with a twisted intramolecular charge transfe...

A copper(II) complex of (R)-N-(2-pyridylmethyl)pipecolate (pmpi) was prepared, and its structure was revealed by X-ray crystal structure analysis. Mixed ligand complexes were then prepared from this complex and (R)- and (S)-N-(t-butoxycarbonyl)leucinate (BocLeu). The (R)-BocLeu complex is less s...

γ-Aminobutyric acid (GABA) receptors (GABARs) mediate fast inhibitory synaptic transmission and are also targets for drugs and insecticides. To better understand the molecular interactions of ligands with the orthosteric sites of GABARs, we examined 4-aryl/arylalkyl-5-(4-piperidyl)-3-isoxazolol...

Competitive antagonists (CAs) of ionotropic GABA receptors (GABARs) reportedly exhibit insecticidal activity and have potential for development as novel insecticides for overcoming emerging resistance to traditional GABAR-targeting insecticides. Our previous studies demonstrated that 4,5-disubst...

Thioridazine is an orally administered antipsychotic drug with potential for treatment of drug-resistant tuberculosis (TB). However, drug-induced adverse cardiac effects have been reported when thioridazine was used at an efficacious oral dose of 200 mg/day to treat TB. Pulmonary delivery of thi...

Sulfated sialyl Lex ganglioside analogues at C-6 of d-galactose, N-acetyl-d-glucosamine, and of both d-galactose and N-acetyl-d-glucosamine residues have been synthesized, in order to clarify the structure of the real carbohydrate ligand of L-selectin. Coupling of the suitably protected N-acetyl...