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Gynecologic investigation最新文献

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Synthesis of proteins in the placenta. 胎盘中蛋白质的合成。
Gynecologic investigation Pub Date : 1977-01-01 DOI: 10.1159/000301047
C A Villee
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引用次数: 10
Determinants of venous return in the fetal lamb. 胎儿羔羊静脉回流的决定因素。
Gynecologic investigation Pub Date : 1977-01-01 DOI: 10.1159/000301088
R D Gilbert
{"title":"Determinants of venous return in the fetal lamb.","authors":"R D Gilbert","doi":"10.1159/000301088","DOIUrl":"https://doi.org/10.1159/000301088","url":null,"abstract":"<p><p>Measurements have been made of the peripheral vascular factors influencing venous return, and hence cardiac output, in the fetus. These measurements show the fetus maintains a high venous return by means of a high mean systemic pressure, or driving pressure for venous return, and a low resistance to venous return. Increases in fetal blood volume cause increases in mean systemic pressure with no change in resistance to venous return and, as a result, venous return is increased. These studies show the possible importance of peripheral vascular factors in the control of cardiac output.</p>","PeriodicalId":75889,"journal":{"name":"Gynecologic investigation","volume":"8 5-6","pages":"233-45"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000301088","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11814387","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: 1
Nucleic acid structure and function. 核酸的结构和功能。
Gynecologic investigation Pub Date : 1977-01-01 DOI: 10.1159/000301045
C A Villee
{"title":"Nucleic acid structure and function.","authors":"C A Villee","doi":"10.1159/000301045","DOIUrl":"https://doi.org/10.1159/000301045","url":null,"abstract":"4 70. Biological Membranes (JDC 470.) Spring. 3(3-0) BCH 401. Interdepartmental with the departments of Microbiolop,y and Public Health, and Physio(ogy. Administered by the Department of Physiology. Thtt chemistry, physics and mathematics of the permeabilitv. energy transductions and snrfacc functions o{ differentiated cell membranes and membranous organelles are compared. A brief discussion of theoretical and experimental models is included.","PeriodicalId":75889,"journal":{"name":"Gynecologic investigation","volume":"8 3-4","pages":"139-44"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000301045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11808837","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: 8
Fetal metabolism during recovery from surgical stress. 手术应激恢复过程中的胎儿代谢。
Gynecologic investigation Pub Date : 1977-01-01 DOI: 10.1159/000301106
J F Clapp, R M Abrams, N Patel
{"title":"Fetal metabolism during recovery from surgical stress.","authors":"J F Clapp,&nbsp;R M Abrams,&nbsp;N Patel","doi":"10.1159/000301106","DOIUrl":"https://doi.org/10.1159/000301106","url":null,"abstract":"<p><p>10 fetal lambs prepared with sampling catheters in the common umbilical vein and distal aorta were studied at 2 h, 2 and 4 days postoperatively. Umbilical blood flow was measured by a diffusion equilibrium method. Oxygen, lactate, pyruvate, glucose and alpha-amino nitrogen concentrations were determined on umbilical arterial (UA) and umbilical vein (UV) blood. Fetal oxygen consumption averaged 10.4, 10.6 and 1.0 ml.kg-1.min-1 for the three study periods. Lactate/pyruvate ratios were higher in UV than in UA in 17 of 20 experiments. Significant reductions (p less than 0.05) in (1) maternal mixed venous-UA glucose concentration difference, and (2) UA glucose concentrations occurred at 2 and 4 days compared to the 2-hour period. Fetal alpha-amino nitrogen balance was negative at the 2-hour period, but positive 2 days and 4 days postoperatively.</p>","PeriodicalId":75889,"journal":{"name":"Gynecologic investigation","volume":"8 5-6","pages":"299-306"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000301106","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11817581","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: 12
Role of nucleic acids in the regulation of human placental lactogen synthesis. 核酸在人胎盘乳原合成调控中的作用。
Gynecologic investigation Pub Date : 1977-01-01 DOI: 10.1159/000301049
D J Gusseck
{"title":"Role of nucleic acids in the regulation of human placental lactogen synthesis.","authors":"D J Gusseck","doi":"10.1159/000301049","DOIUrl":"https://doi.org/10.1159/000301049","url":null,"abstract":"","PeriodicalId":75889,"journal":{"name":"Gynecologic investigation","volume":"8 3-4","pages":"162-82"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000301049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11418894","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: 5
Measurement of changes in the constituents of nucleic acids (total DNA and RNA) in the placenta during the course of pregnancy. 妊娠期间胎盘中核酸成分(总DNA和RNA)变化的测量。
Gynecologic investigation Pub Date : 1977-01-01 DOI: 10.1159/000301051
T T Hayashi
{"title":"Measurement of changes in the constituents of nucleic acids (total DNA and RNA) in the placenta during the course of pregnancy.","authors":"T T Hayashi","doi":"10.1159/000301051","DOIUrl":"https://doi.org/10.1159/000301051","url":null,"abstract":"","PeriodicalId":75889,"journal":{"name":"Gynecologic investigation","volume":"8 3-4","pages":"183-94"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000301051","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11552638","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: 1
In vitro perfusion studies of the human placenta. IV. Some characteristics of the glucose transport system in the human placenta. 人胎盘的体外灌注研究。人胎盘中葡萄糖转运系统的一些特点。
Gynecologic investigation Pub Date : 1976-01-01 DOI: 10.1159/000301396
P. A. Rice, J. E. Rourke, E. L. Nesbitt
{"title":"In vitro perfusion studies of the human placenta. IV. Some characteristics of the glucose transport system in the human placenta.","authors":"P. A. Rice, J. E. Rourke, E. L. Nesbitt","doi":"10.1159/000301396","DOIUrl":"https://doi.org/10.1159/000301396","url":null,"abstract":"In vitro perfusion studies of glucose transport in the human placenta show saturation kinetics at high glucose concentrations and competitive inhibition of glucose transfer by the nonmetablizable glucose analog 3-O-methyl-alpha-D glucopyranoside. These characteristics provide further evidence that glucose is transported by a facilitated diffusion process in the human placenta.","PeriodicalId":75889,"journal":{"name":"Gynecologic investigation","volume":"7 4 1","pages":"213-21"},"PeriodicalIF":0.0,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000301396","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"65433977","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: 8
Bulk flows through human fetal membranes. 大流量通过人胎膜。
Gynecologic investigation Pub Date : 1976-01-01 DOI: 10.1159/000301331
D R Abramovich, K R Page, L Jandial
{"title":"Bulk flows through human fetal membranes.","authors":"D R Abramovich,&nbsp;K R Page,&nbsp;L Jandial","doi":"10.1159/000301331","DOIUrl":"https://doi.org/10.1159/000301331","url":null,"abstract":"<p><p>Bulk water flows across term human amnio-chorion are studied in vitro. The hydrodynamic permeability is found to vary with both hydrostatic and osmotic pressure. The coefficient characterizing flows generated by hydrostatic pressure is substantially larger than that characterizing osmotic flows. The measurements are utilised to predict in vivo bulk flows across the amnio-chorion. These lead to the prediction that at most a flux of 34-83 ml/day may occur across amnio-chorion directed outwards from the amniotic cavity, the principal contribution to this arising from the effects of hydrostatic pressure.</p>","PeriodicalId":75889,"journal":{"name":"Gynecologic investigation","volume":"7 3","pages":"157-64"},"PeriodicalIF":0.0,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000301331","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12146403","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
In vitro perfusion studies of the human placenta. IV. Some characteristics of the glucose transport system in the human placenta. 人胎盘的体外灌注研究。人胎盘中葡萄糖转运系统的一些特点。
Gynecologic investigation Pub Date : 1976-01-01
P A Rice, J E Rourke, E L Nesbitt
{"title":"In vitro perfusion studies of the human placenta. IV. Some characteristics of the glucose transport system in the human placenta.","authors":"P A Rice,&nbsp;J E Rourke,&nbsp;E L Nesbitt","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In vitro perfusion studies of glucose transport in the human placenta show saturation kinetics at high glucose concentrations and competitive inhibition of glucose transfer by the nonmetablizable glucose analog 3-O-methyl-alpha-D glucopyranoside. These characteristics provide further evidence that glucose is transported by a facilitated diffusion process in the human placenta.</p>","PeriodicalId":75889,"journal":{"name":"Gynecologic investigation","volume":"7 4","pages":"213-21"},"PeriodicalIF":0.0,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12174055","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
Alterations in metabolism of H-epinephrine in the pregnant and non-pregnant state and in males. h -肾上腺素在妊娠、非妊娠状态及男性体内代谢的变化。
Gynecologic investigation Pub Date : 1976-01-01 DOI: 10.1159/000301385
S Parvez, H Parvez
{"title":"Alterations in metabolism of H-epinephrine in the pregnant and non-pregnant state and in males.","authors":"S Parvez,&nbsp;H Parvez","doi":"10.1159/000301385","DOIUrl":"https://doi.org/10.1159/000301385","url":null,"abstract":"<p><p>The influence of sex, pregnancy and parturition of biological accumulation and metabolic fate was studied in Sherman rats. 3H-epinephrine was used as a tracer to determine differences in metabolite formation in normal males and females as well as pregnant rats from 18 days post coitum to the end of parturition. The disappearance of 3H-epinephrine and its metabolites was measured in blood, heart, kidney and brain at different intervals but 20 min after the injection of tracer was found the most appropriate time to find appreciable radioactivity in most of the organs studied. All the comparisons for 3H-epinephrine accumulation and its transformation to metabolites have been reported 20 min post-perfusion period. Marked changes of high statistical significance in 3H-epinephrine accumulation and its transformation to 3H-metanephrine and 3H-acid metabolities were observed between males and females. Heart, adrenals, and spleen showed lower rate of metabolism but higher rate of accumulation during pregnancy. Kidney, ovary, and uterus demonstrated higher rate of metabolism but lower rate of accumulation during gestation. In brain regions, hypophysis discriminated greatly between males and females for the three parameters studied. There were important alterations in metabolite formation during 18 and 21 days of pregnancy. The observed variations have been considered due to modified endocrine activity during pregnancy and parturition.</p>","PeriodicalId":75889,"journal":{"name":"Gynecologic investigation","volume":"7 4","pages":"222-42"},"PeriodicalIF":0.0,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000301385","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12174056","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: 3
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