Abstract: The invention provides a method for increasing hydration and lubrication of lacrimal tissues in a subject in need of such treatment. The method comprises administering to the subject a nicotinic acetylcholine receptor agonist such as nicotine and its analogs, transmetanicotine and its analogs, epibatidine and it analogs, lobeline and its analogs, pyridol derivatives, para-alkylthiophenol derivatives, and imidacloprid and its analogs, in an amount effective to stimulate mucus secretion in the lacrimal system. Pharmaceutical formulations and methods of making the same are also disclosed. Methods of administering the formulation include: topical administration via a liquid, gel, cream, or as part of a contact lens or selective release membrane; or systemic administration via nasal drops or spray, inhalation by nebulizer or other device, oral form (liquid or pill), injectable, intra-operative instillation, suppository form, or transdermal form.

Abstract: The present invention provides new methods for the synthesis of the therapeutic dinucleotide, P1,P4-di(uridine 5′-tetraphosphate), and demonstrates applicability to the production of large quantities. The methods of the present invention substantially reduce the time period required to synthesize diuridine tetraphosphate, preferably to three days or less. The novel tetrammonium and tetrasodium salts of P1,P4-di(uridine 5′-tetraphosphate) (Formula I) prepared by these methods are stable, soluble, nontoxic, and easy to handle during manufacture.

Abstract: A method and preparation for the stimulation of tear secretion in a subject in need of such treatment is disclosed. The method comprises administering to the ocular surfaces of the subject a purinergic receptor agonist such as uridine 5'-triphosphate ?UTP!, dinucleotides, cytidine 5'-triphosphate ?CTP!, adenosine 5'-triphosphate ?ATP!, or their therapeutically useful analogs and derivatives, in an amount effective to stimulate tear fluid secretion. Pharmaceutical formulations and methods of making the same are also disclosed. Methods of administering the same would include: topical administration via a liquid, gel, cream, or as part of a contact lens or selective release membrane; or systemic administration via nasal drops or spray, inhalation by nebulizer or other device, oral form (liquid or pill), injectable, intra-operative instillation or suppository form.

Abstract: The present invention encompasses structures of the formula ##STR1## wherein: X is oxygen, methylene, or difluoromethylene;n=0 or 1;m=0 or 1;n+m=0, 1 or 2; andB and B' are each independently a purine residue or a pyrimidine residue linked through the 9- or 1-position, respectively, provided that compounds disclosed in Table I are excluded. In the instance where B and B' are uracil, attached at the N-1 position to the ribosyl moiety, then the total of m+n may equal 3 or 4 when X is oxygen.The compounds of the present invention are highly selective agonists of the P2Y.sub.2 purinergic receptor, thus, they are useful in the treatment of chronic obstructive pulmonary diseases such as chronic bronchitis, PCD, cystic fibrosis, as well as prevention of pneumonia due to immobility. Furthermore, because of their general ability to clear retained mucus secretions and stimulate ciliary beat frequency, the compounds of the present invention are also useful in the treatment of sinusitis and otitis media.