Reference

The response of lymphatic smooth muscles to vasoactive substances

The response of lymphatic smooth muscles to vasoactive substances. Ohhashi, Toshio; Kawai, Yasuaki; Azuma, Takehiko (Dep. Physiol., Shinshu Univ. Med. Sch., Matsumoto, Japan). Pfluegers Arch., 375(2), 183-8 (English) 1978. CODEN: PFLABK. ISSN: 0031-6768. DOCUMENT TYPE: Journal CA Section: 2 (Hormone Pharmacology) Contractions of isolated bovine lymphatic smooth muscles were induced by serotonin creatinine sulfate (I creatinine sulfate) [971-74-4], PGF2a [551-11-1], dl-noradrenaline-HCl (NA) [55-27-6], histamine-2HCl [56-92-8], dopamine-HCl [62-31-7], and acetylcholine chloride (ACh) [60-31-1]. The smooth muscles were particularly sensitive to I. Excepting PGF2a, no other substances were as potent as I. The majority of I receptors seemed to be the D receptors. The decreasing order of the contractile responses was as follows: I > PGF2a > NA > histamine > dopamine > ACh. The contractile response to ACh was obsd. only in specimens involving a valvular region. In the lymphatics, there may be 2 kinds of receptors for catecholamines, i.e. a and b receptors, and the stimulation of the former induces smooth muscle contraction and that of the latter relaxation. Relaxations of lymphatic smooth muscles were induced not only by isoproterenol-HCl [51-30-9] but also by adenosine [5682-25-7] and adenine nucleotides. The decreasing order of the relaxant responses was as follows: isoproterenol > adenosine > ATP di-Na salt [987-65-5] > ADP di-Na salt [16178-48-6] > dibutyryl cyclic AMP Na salt [19436-29-4] 3 AMP di-Na salt [4578-31-8]. The relaxant responses to adenine nucleotides tended to decrease with decrease in the no. of high energy phosphates.

Mechanisms of the reactions of proton transfer in aqueous solutions of some adenosine phosphates

Mechanisms of the reactions of proton transfer in aqueous solutions of some adenosine phosphates. Valaeva, S. R.; Zinov'ev, O. I. (Mosk. Gos. Univ., Moscow, USSR). Akust. Zh., 29(6), 736-9 (Russian) 1983. CODEN: AKZHAE. 16178-48-6 and 4578-31-8 which are cas registry numbers of chemicals are mentioned. ISSN: 0002-3914. DOCUMENT TYPE: Journal CA Section: 67 (Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms) The mechanisms of the proton transfer reactions for aq. solns. of Na salts of 5' AMP, 5' ADP, and 5' ATP were studied at pH = 5 and 22°. The rate of reactions were estd. .