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Acta biologica Academiae Scientiarum Hungaricae最新文献

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Effect of sympathomimetic substances and analogues on tail absorption of frog larva. 拟交感神经物质及其类似物对蛙幼虫尾部吸收的影响。
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
G Csaba, A Szalkó, E Kapa
{"title":"Effect of sympathomimetic substances and analogues on tail absorption of frog larva.","authors":"G Csaba,&nbsp;A Szalkó,&nbsp;E Kapa","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Similarly to the effect of T3, the tail absorption of frog larvae (Rana arvalis) was stimulated in vitro by the sympathomimetic agents adrenaline, isoproterenol, ephedrine and the adrenaline analogue MMT. The effect of T3 administration was not inhibited by adrenaline, isoproterenol and MMT, but it was by ephedrine and T3 pretreatment. The adrenaline and isoproterenol effect manifested itself after early administration, but not after late and while ephedrine and MMT were effective at long-term administration, even it administered at a later time. Our experiments draw attention to the metamorphotic effect of substances capable of binding to beta-receptors. Their effect may be explained partly by the increase in the cAMP level, partly by a relationship existing between the beta-receptor and the T3 receptor.</p>","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 2","pages":"103-9"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17338744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemical synthesis of a dodecadeoxyribonucleotide complementary to the 3'-end of the coding region of human preproinsulin mRNA. 与人胰岛素前原mRNA编码区3′端互补的十二烷氧核糖核苷酸的化学合成。
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
A Simoncsits
{"title":"Chemical synthesis of a dodecadeoxyribonucleotide complementary to the 3'-end of the coding region of human preproinsulin mRNA.","authors":"A Simoncsits","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 3-4","pages":"241-6"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18359890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental investigations on the hypokinesis of skeletal muscles with different functions, VIII. Effect of plaster-cast immobilization on the contractile properties of rat skeletal muscles with different functions. 不同功能骨骼肌运动减退的实验研究，8。石膏固定对大鼠不同功能骨骼肌收缩性能的影响。
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
A Szöör, M Rapcsák, G Hollósi
{"title":"Experimental investigations on the hypokinesis of skeletal muscles with different functions, VIII. Effect of plaster-cast immobilization on the contractile properties of rat skeletal muscles with different functions.","authors":"A Szöör,&nbsp;M Rapcsák,&nbsp;G Hollósi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The plaster-cast immobilization of the right hind limbs of rats has been investigated. Examinations were performed on the changes in weight of both types of skeletal muscles, i.e. the fast and the slow ones, the m. extensor digitorum longus and the m. gastrocnemius on the one hand, and the m. soleus on the other. The most significant loss in weight was observed in the gastrocnemius muscle. The ATP-Ca2+-induced isometric tension as well as the speed of contraction of glycerine-treated myofibrillar preparations considerably decreased as a result of 28-day immobilization. The most marked change was observed in the soleus muscle. There was a similar decrease in the specific activity of myofibrillar myosin ATPase prepared from immobilized muscles. The specific activity of K+-EDTA myosin ATPase did not change.</p>","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 2","pages":"129-35"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17520045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of cortisol, deoxycorticosterone and 19-nortestosterone on the gametogenesis of the snail Helix pomatia. 皮质醇、去氧皮质酮和去甲睾酮对钉螺配子发生的影响。
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
G Csaba, J Bierbauer
{"title":"Effect of cortisol, deoxycorticosterone and 19-nortestosterone on the gametogenesis of the snail Helix pomatia.","authors":"G Csaba,&nbsp;J Bierbauer","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Gametogenesis of the snail was shown to be affected by cortisol, deoxycorticosterone and 19-nortestosterone. An activation of the ovogenetic apparatus while uncertain responses of spermiogenesis were observed. On the basis of effects of non-gonadospecific steroids it is concluded that the receptors of the snail's spermiocytes are not selective. The spermatogenesis was influenced more significantly by 19-nortestosterone as compared to testosterone, having been examined earlier.</p>","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 1","pages":"15-8"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17945535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Is the human trophoblast in vitro an adaptive tissue for immunological influences? 体外培养的人滋养细胞是适应免疫影响的组织吗?
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
S I Kolesnikov, L A Trunova, N V Ignatovich, V G Paraskun
{"title":"Is the human trophoblast in vitro an adaptive tissue for immunological influences?","authors":"S I Kolesnikov,&nbsp;L A Trunova,&nbsp;N V Ignatovich,&nbsp;V G Paraskun","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The role of the extra-embryonic organs (e.g. placenta) in the feto-maternal immunological interactions is not clear. Trophoblast cells of human placenta were studied in vitro in relation to their adaptive capacities under the immunological influence of allogeneic leucocytes of pregnant women. It was shown that after an 18-h interaction some trophoblastic cells were still viable, they were rich in glycoproteins and RNA, and elicited a prominent activity of some enzymes. Mitosis was often seen. The authors suppose that the trophoblast is highly adaptable to some immunological influences in vitro.</p>","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 2","pages":"147-56"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17851928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of ovariectomy, thyroidectomy and of thyroxine treatment on the plasma level of corticosterone of the female Japanese quail. 卵巢切除、甲状腺切除及甲状腺素治疗对雌性日本鹌鹑血浆皮质酮水平的影响。
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
P Péczely, G Pethes
{"title":"Effect of ovariectomy, thyroidectomy and of thyroxine treatment on the plasma level of corticosterone of the female Japanese quail.","authors":"P Péczely,&nbsp;G Pethes","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Corticosterone was determined by means of competitive protein binding in the plasma of ovariectomized, thyroidectomized, ovariectomized and thyroidectomized, thyroxin-treated, corticosterone-treated and control Japanese quails, exposed to short or long photoperiod. Female birds exposed to short photoperiod possessed a slightly (not significantly) higher plasma corticosterone level than male ones. In photostimulated animals, however, the plasma corticosterone level showed no sex difference. Unlike in male quails, photostimulation did not enhance corticosteronaemia in the female ones. Corticosterone level was decreased by ovariectomy in both short-day and long-day birds. It was decreased by thyroidectomy and increased by thyroxine treatment in short-day birds, while the same interventions were ineffective in photostimulated ones. The data obtained point to that thyroxine treatment enhances, while the lack of ovarian sexual steroids decreases the plasma corticosterone level of female Japanese quails. Comparison of data obtained from ovariectomized + thyroidectomized birds shows that light may be responsible for elevated corticosteronaemia per se.</p>","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18295758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dose dependence of vinblastine-induced autophagocytosis in liver parenchymal, exocrine pancreas and seminal vesicle epithelial cells of the mouse in vivo. 长春碱诱导小鼠肝实质、外分泌胰腺和精囊上皮细胞自噬的剂量依赖性。
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
A L Kovács, L László, L Tajti, J Kovács
{"title":"Dose dependence of vinblastine-induced autophagocytosis in liver parenchymal, exocrine pancreas and seminal vesicle epithelial cells of the mouse in vivo.","authors":"A L Kovács,&nbsp;L László,&nbsp;L Tajti,&nbsp;J Kovács","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 2","pages":"157-9"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18342021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Glucocorticoid responsiveness of hepatoma cell hybrids. 肝癌细胞杂交体的糖皮质激素反应性。
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
A Venetianer, A Gál, Z Bösze
{"title":"Glucocorticoid responsiveness of hepatoma cell hybrids.","authors":"A Venetianer,&nbsp;A Gál,&nbsp;Z Bösze","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The dominance or recessiveness of glucocorticoid responsiveness and albumin production of different hepatoma cell lines were investigated using somatic cell hybrids. The majority of the intraspecific, intraorgan hybrids between glucocorticoid sensitive, tyrosine aminotransferase (TAT) non-inducible, albumin non-secreting parents and glucocorticoid resistant, TAT-inducible, albumin secreting parents were glucocorticoid sensitive, TAT non-inducible and albumin non-producing. The TAT inducibility was extinguished in interspecific, interorgan hybrids of TAT-inducible hepatoma and non-inducible Chinese hamster fibroblast parents. No TAT reexpression was observed among the many independent hybrid clones. The experiments provided evidence for the non-coordinate control of the expression of differentiated functions in hepatoma hybrid cells.</p>","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 3-4","pages":"175-88"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17194236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seasonal and sex differences in the serum calcitonin levels of the rat. 大鼠血清降钙素水平的季节和性别差异。
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
M Petkó, L Kovács
{"title":"Seasonal and sex differences in the serum calcitonin levels of the rat.","authors":"M Petkó,&nbsp;L Kovács","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The serum levels of calcitonin, calcium and inorganic phosphate, and the urine concentrations of calcium and inorganic phosphate were measured in male and female rats in spring and in autumn. Significantly higher levels of serum calcitonin and calcium were found in spring than in autumn in both male and female rats. The calcium and inorganic phosphate contents of the urine were also significantly higher in spring than in autumn in both sexes. In addition to the seasonal variations, the serum level of calcitonin was higher in female than in male rats both in spring and in autumn.</p>","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 2","pages":"123-7"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18342019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Separation of ATP-dependent DNAse to ATPase and DNAse. atp依赖性dna酶与atp酶和DNAse的分离。
Acta biologica Academiae Scientiarum Hungaricae Pub Date : 1981-01-01
G Bánfalvi, S Csuzi, A Ohlbaum, F Antoni
{"title":"Separation of ATP-dependent DNAse to ATPase and DNAse.","authors":"G Bánfalvi,&nbsp;S Csuzi,&nbsp;A Ohlbaum,&nbsp;F Antoni","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A 250-fold purified ATP-dependent DNase from Bacillus cereus has been separated to DNA-dependent ATPase I and II and a DNase specific for single-stranded DNA (ssDNase) by means of high resolution of DEAE cellulose chromatography. Simultaneously with the separation of ATPase and ssDNase, a decrease in ATP-dependent DNase activity was observed. Complete separation resulted in the total loss of ATP-dependent DNase activity. Reconstitution of ATP-stimulated DNase activity was dependent on the ratio of the combined ATPase II and ssDNase.</p>","PeriodicalId":7056,"journal":{"name":"Acta biologica Academiae Scientiarum Hungaricae","volume":"32 1","pages":"45-54"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17516530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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