1151
|
Yamayoshi S, Yoshikawa K, Kawai T. [Dosage of diallyl-nor-toxiferine calculated on the basis of lean body mass]. MASUI. THE JAPANESE JOURNAL OF ANESTHESIOLOGY 1976; 25:120-6. [PMID: 943596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
1152
|
Aoyagi S, Yoshikawa K, Yokokura Y, Ouchi Y, Kobayashi S. [Surgical management of a single atrium--with special reference to the management of mitral valve cleft]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1975; 28:885-90. [PMID: 1239622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
1153
|
Nakagawa M, Yoshikawa K, Hino T. The photosensitized oxygenation of Nb-methyltryptamine. J Am Chem Soc 1975; 97:6496-6501. [PMID: 1184867 DOI: 10.1021/ja00855a035] [Citation(s) in RCA: 41] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
1154
|
Abstract
A deficiency of epidermal cyclic adenosine 3', 5'-monophosphate (cyclic AMP) has been implicated as the cause of the incomplete differentiation, increased mitosis and increased glycogen concentration which characterize the psoriatic lesion. This communication contains our data on the epidermal concentration of cyclic AMP in the lesional and 'normal' (non-involved) skin of patients with psoriasis. In these studies we have introduced the following improvement in methodology: (1) Local ischaemia in the biopsy specimens was prevented by not giving any injections prior to removal of the tissues and by freezing the tissues prior to removal. (2) The epidermis was microdissected from the dermis prior to cyclic AMP assay as as to give as pure an epidermal specimen as possible. Epidermal cyclic AMP was found to be 20-25% higher in the skin lesion than in the uninvolved skin when compared on a dry weight or protein basis but essentially when compared on the basis of DNA content. Our conclusion is that the cyclic AMP level in the psoriatic lesion is not lower than that in the 'normal' skin and thus these characteristics in psoriatic lesions cannot be related simply to a cyclic AMP deficiency.
Collapse
|
1155
|
Kim SY, Miyamoto K, Yoshikawa K. [Effects of beta receptor blocking agent, 1-(7-indenyloxy)-3-isopropylaminopropane-2-ol hydrochloride (YB-2) on the circulatory system during intubation for general anesthesia]. MASUI. THE JAPANESE JOURNAL OF ANESTHESIOLOGY 1975; 24:780-6. [PMID: 240954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
1156
|
Yoshikawa K, Adachi K, Halprin KM, Levine V. The effects of catecholamine and related compounds on the adenyl cyclase system in the epidermis. Br J Dermatol 1975; 93:29-36. [PMID: 1191526 DOI: 10.1111/j.1365-2133.1975.tb06472.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The effect of various hormones and drugs on the adenyl cyclase system of pig and human epidermal slices was studied in vitro. Adrenaline and isoproterenol in the presence of theophylline increased the epidermal cyclic AMP level 20-fold in 5 min. Noradrenaline also stimulated cyclic AMP accumulation but to a much lesser degree. The adrenaline stimulation was marked even in the absence of the phosphodiesterase inhibitor, theophylline. Theophylline potentiated the effect of adrenaline at the concentration of 2-10 mM although theophylline alone did not elevate the cyclic AMP level significantly. The Km for adrenaline stimulation of the adenyl cyclase system of pig epidermis was 7-7 X 10(-7) M. A beta-adrenergic antagonist, propranolol, markedly inhibited the adrenaline stimulation while alpha-antagonists, phentolamine or priscoline, showed little effect. The results are in accord with the view that the epidermis possesses an active adenyl cyclase system with beta-adrenergic receptors.
Collapse
|
1157
|
Abstract
Evidence that an adenyl cyclase system is present in all mammalian epidermis is reviewed. This adenyl cyclase is stimulated by at least two separate types of chemicals: catecholamines, which act at a beta-adrenergic receptor site, and prostaglandins of the E series, which act at a separate site. In the psoriatic lesion, the response to these stimulators, especially to the catecholamines, is reduced. Despite this lack of response to external agents which elevate cyclic AMP, the concentration of cyclic AMP within the epidermis of the psoriatic lesion is no lower than in noninvolved skin. How cyclic nucleotides act to control cell proliferation and cell differentiation remains unclear.
Collapse
|
1158
|
Yoshikawa K, Adachi K, Halprin KM, Levine V. On the lack of response to catecholamine stimulation by the adenyl cyclase system in psoriatic lesions. Br J Dermatol 1975; 92:619-24. [PMID: 170954 DOI: 10.1111/j.1365-2133.1975.tb03140.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
When epidermis from the uninvolved skin of psoriatic patients was incubated for 5 min in Hank's medium containing adrenaline and theophylline, the cyclic AMP level consistently increased 20-30 times over the level observed when adrenaline was not added to the medium. On the other hand, when epidermis from the involved skin of psoriatic patients was incubated under the same experimental conditions, the cyclic AMP level increased only 2-5 times. Even when theophylline, and inhibitor of specific cyclic AMP-phosphodiesterase, was omitted from the medium, a clearly demonstrable difference in sensitivity to adrenaline was evident in normal appearing and lesional psoriatic epidermis. These results indicate a faulty adenyl cyclase system in the involved epidermis of psoriatic lesions rather than a defective degradation process by the specific phosphodiesterase. Since the Km for adrenaline activation of adenyl cyclase was approximately the same in both the uninvolved and the involved epidermis and since the cyclic AMP increase by adrenaline was abolished by the addition of propranolol, the basic nature of the beta-receptor (specifically the binding affinity to adrenaline) in the involved epidermis does not appear to be defective. On the other hand, the finding that the Vmax for adrenaline activation is 10-20 times higher in the uninvolved than in the involved epidermis suggests that the poor response in the involved epidermis may be due to fewer available binding sites for adrenaline in the psoriatic lesion.
Collapse
|
1159
|
Israel MA, Kuriyama K, Yoshikawa K. Effect of ethanol administration on axoplasmic flow in the brain. Neuropharmacology 1975; 14:445-51. [PMID: 50574 DOI: 10.1016/0028-3908(75)90027-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
1160
|
Asada K, Yoshikawa K, Takahashi M, Maeda Y, Enmanji K. Superoxide dismutases from a blue-green alga, Plectonema boryanum. J Biol Chem 1975; 250:2801-7. [PMID: 164453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Iron-containing and manganese-containing superoxide dismutases were found in Plectonema boryanum. The Mn-enzyme occupies about 10% of total activity. The Fe-enzyme was purified to near homogeneity. It contains 2 atoms of iron per mol. Its molecular weight is 41,700 and it is composed of two subunits of identical molecular weight without disulfide linkage. Amino acid composition is presented. Electron paramagnetic resonance spectrum revealed that iron occurs in a high spin ferric form and in some anisotropic environment. The absorption spectrum and the absence of acid-labile enzymes are insensitive to cyanide. Although the Fe-enzyme is sensitive to hydrogen peroxide, the Mn-enzyme is not.
Collapse
|
1161
|
Asada K, Yoshikawa K, Takahashi M, Maeda Y, Enmanji K. Superoxide dismutases from a blue-green alga, Plectonema boryanum. J Biol Chem 1975. [DOI: 10.1016/s0021-9258(19)41561-5] [Citation(s) in RCA: 217] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
1162
|
Adachi K, Yoshikawa K, Halprin KM, Levine V. Prostaglandins and cyclic AMP in epidermis. Evidence for the independent action of prostaglandins and adrenaline on the adenyl cyclase system of pig and human epidermis, normal and psoriatic. Br J Dermatol 1975; 92:381-8. [PMID: 168916 DOI: 10.1111/j.1365-2133.1975.tb03097.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Prostaglandins E1 and E2 stimulate cyclic AMP accumulation in pig epidermis and in human epidermis from patients with psoriasis. Prostaglandins A1,A2 and F2alpha are relatively ineffective. The fact that this stimulation is not inhibited by a beta-blocker (propranolol) and that the stimulation by prostaglandin E2 and adrenaline is additive indicates that each drug acts independently on the epidermal adenyl cyclase system. In other words, prostaglandins E1 and E2 act on a site other than the beta-receptor of adenyl cyclase in epidermis. The stimulation by prostaglandins E1 and E2 is not additive; hence they probably act on the same site. Concentrations of prostaglandin E above 3X10(-7) M are effective in causing stimulation. This concentration may be within the physilogical range and the contribution of endogenous prostaglandin levels in the control of intracellular cyclic AMP levels cannot be disregarded.
Collapse
|
1163
|
Yoshikawa K, Adachi K, Levine V, Halprin KM. Micro-determination of cyclic AMP levels in human epidermis, dermis and haif follicles. Br J Dermatol 1975; 92:241-8. [PMID: 167797 DOI: 10.1111/j.1365-2133.1975.tb03072.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In order to study the biological and possible pathological roles of cyclic adenosine 3',5'-monophosphate (cyclic AMP) in the skin, it is mandatory to measure cyclic AMP in 50-100 mug of microdissected epidermis, dermis or appendages. In the present study, we offer a method of extracting cyclic AMP from less than 100 mug of tissue, removing contaminating nucleotides and scaling down Gilman's method to fit the analysis of small amounts of tissue. Cyclic AMP levels in the dermis, epidermis, and hair follicles (bulbs) were approximately 1, 2 and 3-5 pmols/mug dry weight tissue respectively. This procedure is applicable to the measurement of cyclic AMP levels in limited foci of healthy or diseased skin.
Collapse
|
1164
|
Abstract
The cyclic adenosine 3',5'-monophosphate (cyclic AMP) content of pig skin was measured several seconds to minutes after removal of the skin from the body. It increased very rapidly, reached a maximum by 2 min after removal (4 times higher than the initial level), then decreased very slowly. Propranolol injected into the animal before or added after the removal of the skin did not suppress this phenomenon. The practical significance of this finding (increase of cyclic AMP level in skin after ischaemia) is obvious-in order to measure cyclic AMP level in vivo, the sample must be frozen immediately to avoid an 'artificial' increase in cyclic AMP.
Collapse
|
1165
|
Odake G, Yoshikawa K, Naruse S. Vasospasm and adrenergic innervation of circle of Willis. THE JAPANESE JOURNAL OF SURGERY 1974; 4:222-30. [PMID: 4219430 DOI: 10.1007/bf02469456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cerebral vasospasm following the rupture of intracranial aneurysm presents perplexing situation, i.e. prolonged vasospasm results in cerebral infarct and too early relief causes recurrence of the bleeding. To understand mechanism underlying the cerebral vasospasm, catecholamine-containing sympathetic nerve plexus was examined in the arterial walls of the circle of Willis using rat, cat, dog and monkey using Falck-Hillarp's fluorescence method. The distribution of fluorescing nerve plexus was found to be essentially the same in the examination of all species. The distribution of the fluorescing fibers decreases in the following order; proximal anterior cerebral, internal carotid, distal anterior or proximal middle cerebral, and distal middle cerebral artery. The origin of the nerve plexus accompanying the basal cerebral arteries and the relation to the experimental cerebral vasospasm was investigated as detailed as they could.
Collapse
|
1166
|
Asada K, Kiso K, Yoshikawa K. Univalent reduction of molecular oxygen by spinach chloroplasts on illumination. J Biol Chem 1974; 249:2175-81. [PMID: 4362064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
|
1167
|
Yoshikawa K, Kuro M, Oda T, Minami T. [Carbohydrate infusion 1: hyperuricaemia caused by carbohydrate infusion]. MASUI. THE JAPANESE JOURNAL OF ANESTHESIOLOGY 1974; 23:106-14. [PMID: 4858880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
1168
|
Nakagawa M, Kaneko T, Yoshikawa K, Hino T. Photosensitized oxygenation of tryptophan methyl ester and Nb-methyl-tryptamine. Isolation and identification of 3a-hydroxypyrroloindole and 4a-hydroxy-1,2-oxazinoindole. J Am Chem Soc 1974; 96:624-5. [PMID: 4815368 DOI: 10.1021/ja00809a071] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
1169
|
Yoshikawa K, Oda T, Tamura H. [Maltose metabolism in diabetic patients during surgery]. MASUI. THE JAPANESE JOURNAL OF ANESTHESIOLOGY 1973; 22:1341-8. [PMID: 4798296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
1170
|
Yoshikawa K. [Multivariate canonical analysis of the normal vectorcardiogram]. JAPANESE CIRCULATION JOURNAL 1973; 37:1115-26. [PMID: 4801191 DOI: 10.1253/jcj.37.1115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
1171
|
Kitamura S, Oguri K, Okumura F, Yoshikawa K. [Difference in the dibucaine number by 2 determination methods: kinetics observation]. MASUI. THE JAPANESE JOURNAL OF ANESTHESIOLOGY 1973; 22:900-5. [PMID: 4797348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
1172
|
Yoshikawa K. [Public health nurse's experience in nursing of psychiatric cases]. [HOKENFU ZASSHI] THE JAPANESE JOURNAL FOR PUBLIC HEALTH NURSE 1973; 29:98-100. [PMID: 4487408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
1173
|
Izumi K, Ota S, Yoshikawa K, Otomi S, Sato T. Complete AV block simulating 2:1 incomplete AV block: a possible case of 2:1 AV synchronization. J Electrocardiol 1973; 6:359-66. [PMID: 4765331 DOI: 10.1016/s0022-0736(73)80060-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
1174
|
Nagata S, Yamabe T, Yoshikawa K, Kato H. Conformational analysis of furan and thiophen carbonyl derivatives. Tetrahedron 1973. [DOI: 10.1016/0040-4020(73)80171-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
1175
|
Yoshikawa K, Tosaki Y, Yoshiya I. Use of LB-46, a new anti-arrhythmic agent, during anesthesia. MEDICAL JOURNAL OF OSAKA UNIVERSITY 1972; 23:189-97. [PMID: 4148141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|