In the rat, prolonged intake of a large quantity of lauric acid (C12:0) before and during pregnancy had no effect on the amount of lipids present in adipose stores at the time of parturition. However, this medium chain fatty acid was intensely esterified in the triglycerides of the maternal adipose tissues. As compared to a diet rich in long chain fatty acids, the intake of lauric acid during lactation considerably modified mammary gland fatty acid secretion. Lauric acid was esterified in very high proportions (about 35 p. 100 of the total fatty acids) in milk triglycerides, thus considerably increasing its saturated fatty acid content (about 80 p. 100 of the total fatty acids). In these nutritional conditions, the mammary gland could not efficiently regulate the qualitative aspects of fatty acid secretion. However, these large modifications of the milk triglyceride fraction did not change the weight of the pups at weaning and had no effect on their body composition. This would indicate that the growth of the lipid compartment was unchanged. The weight of the liver, its total lipid content and the distributions between neutral lipids and phospholipids were identical to those of the controls. A large amount of the lauric acid ingested by the mother was transferred to the pup in the milk before weaning. A large quantity was found in the body triglycerides (30 p.100 of the total fatty acids) and in neutral liver lipids. It was not incorporated directly into hepatic phospholipids.
{"title":"Relations entre l'ingestion d'acides gras à chaîne moyenne par la ratte et la lipogénèse du jeune raton avant le sevrage","authors":"Y. Demarne, M. Lecourtier, J. Flanzy","doi":"10.1051/RND:19790214","DOIUrl":"https://doi.org/10.1051/RND:19790214","url":null,"abstract":"In the rat, prolonged intake of a large quantity of lauric acid (C12:0) before and during pregnancy had no effect on the amount of lipids present in adipose stores at the time of parturition. However, this medium chain fatty acid was intensely esterified in the triglycerides of the maternal adipose tissues. As compared to a diet rich in long chain fatty acids, the intake of lauric acid during lactation considerably modified mammary gland fatty acid secretion. Lauric acid was esterified in very high proportions (about 35 p. 100 of the total fatty acids) in milk triglycerides, thus considerably increasing its saturated fatty acid content (about 80 p. 100 of the total fatty acids). In these nutritional conditions, the mammary gland could not efficiently regulate the qualitative aspects of fatty acid secretion. However, these large modifications of the milk triglyceride fraction did not change the weight of the pups at weaning and had no effect on their body composition. This would indicate that the growth of the lipid compartment was unchanged. The weight of the liver, its total lipid content and the distributions between neutral lipids and phospholipids were identical to those of the controls. A large amount of the lauric acid ingested by the mother was transferred to the pup in the milk before weaning. A large quantity was found in the body triglycerides (30 p.100 of the total fatty acids) and in neutral liver lipids. It was not incorporated directly into hepatic phospholipids.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"79 1","pages":"257-266"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72701467","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}
M. H. Reviers, M. Blanc, C. Cahoreau, M. Courot, J. Dacheux, C. Pisselet
Three male lambs were rendered bilaterally cryptorchid at 15 weeks of age. They were killed when adult during the sexual season in autumn and compared with 4 normal adult rams of the same age, slaughtered at the same time. In the cryptorchid testes, there was a drastic decrease in the total number of Leydig cells per testis, in the length and diameter of seminiferous tubules, and in the numbers of stem spermatogonia. Sertoli cell numbers were normal.
{"title":"Histological testicular parameters in bilateral cryptorchid adult rams","authors":"M. H. Reviers, M. Blanc, C. Cahoreau, M. Courot, J. Dacheux, C. Pisselet","doi":"10.1051/RND:19790714","DOIUrl":"https://doi.org/10.1051/RND:19790714","url":null,"abstract":"Three male lambs were rendered bilaterally cryptorchid at 15 weeks of age. They were killed when adult during the sexual season in autumn and compared with 4 normal adult rams of the same age, slaughtered at the same time. In the cryptorchid testes, there was a drastic decrease in the total number of Leydig cells per testis, in the length and diameter of seminiferous tubules, and in the numbers of stem spermatogonia. Sertoli cell numbers were normal.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"21 1","pages":"1141-1146"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72737007","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}
J. Grizard, M. Tissier, M. Thériez, R. Pion, Marie-Claude Valluy, A. Brelurut, J. Leroux
{"title":"Variations de l'insulinémie chez la brebis en fin de gestation et début de lactation. Influence de l'état nutritionnel en fin de gestation","authors":"J. Grizard, M. Tissier, M. Thériez, R. Pion, Marie-Claude Valluy, A. Brelurut, J. Leroux","doi":"10.1051/rnd:19790105","DOIUrl":"https://doi.org/10.1051/rnd:19790105","url":null,"abstract":"","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"45 1","pages":"73-78"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84644569","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}
C. Trakulrungsi, R. Reiter, W. Trakulrungsi, M. K. Vaughan, L. Y. Johnson
Adult female Syrian hamsters (64-82 g) were ovariectomized and thereafter maintained under light : dark cycles of 14 : 10. After 56 days of treatment the animals were killed and pituitary and plasma levels of luteinizing hormone (LH), follicle stimulating hormone (FSH) and prolactin (PRL) were measured by radioimmunoassay. Ovariectomy caused marked rises in both the content and concentration of LH and FSH within the pituitary gland while pituitary PRL levels fell. Plasma levels of LH and FSH also rose while PRL titers remained unchanged. The daily afternoon injection of melatonin (25 ¡Lg subcutaneously) further increased the accumulation of LH and FSH within the pituitary. These responses to daily melatonin injections were prevented if animals additionally received bi-weekly subcutaneous melatonin-beeswax pellets (1 mg melatonin in 24 mg wax) which presumably released melatonin continually.
{"title":"Effects of injections and/or subcutaneous implants of melatonin on pituitary and plasma levels of LH, FSH and PRL in ovariectomized Syrian hamsters","authors":"C. Trakulrungsi, R. Reiter, W. Trakulrungsi, M. K. Vaughan, L. Y. Johnson","doi":"10.1051/RND:19791002","DOIUrl":"https://doi.org/10.1051/RND:19791002","url":null,"abstract":"Adult female Syrian hamsters (64-82 g) were ovariectomized and thereafter maintained under light : dark cycles of 14 : 10. After 56 days of treatment the animals were killed and pituitary and plasma levels of luteinizing hormone (LH), follicle stimulating hormone (FSH) and prolactin (PRL) were measured by radioimmunoassay. Ovariectomy caused marked rises in both the content and concentration of LH and FSH within the pituitary gland while pituitary PRL levels fell. Plasma levels of LH and FSH also rose while PRL titers remained unchanged. The daily afternoon injection of melatonin (25 ¡Lg subcutaneously) further increased the accumulation of LH and FSH within the pituitary. These responses to daily melatonin injections were prevented if animals additionally received bi-weekly subcutaneous melatonin-beeswax pellets (1 mg melatonin in 24 mg wax) which presumably released melatonin continually.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"48 1","pages":"1647-1654"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90476884","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}
Electron dense-cored vesicles (DCV), originating in the Golgi apparatus and migrating into the perivascular processes, constitute a characteristic feature of the pinealocytes in the pineal gland of mice and hamsters. This report presents the results of ultracytochemical studies carried out to clarify the nature and physiological significance of these vesicles. Using proteases and the PA-TCH-silver technique on ultrathin sections, it was concluded that the dense core of DCV was proteinaceous in nature. These data, correlated with previous pharmacological and cytophysiological studies, showed the important role of DCV in the storage and intracellular migration of a proteinaceous compound of unknown significance. However, in agreement with authors who hypothesized the elaboration of active peptidergic compounds in the mammalian pineal gland to explain some effects that could not be ascribed to indoleamines, it was proposed that DCV might store a carrier-neurohormone complex. The presence in the DCV of one indoleamine, such as serotonin, or of several indoleamines, has still not been established in mammals.
{"title":"The proteinaceous content and possible physiological significance of dense-cored vesicles in hamster and mouse pinealocytes","authors":"M. Juillard","doi":"10.1051/RND:19790310","DOIUrl":"https://doi.org/10.1051/RND:19790310","url":null,"abstract":"Electron dense-cored vesicles (DCV), originating in the Golgi apparatus and migrating into the perivascular processes, constitute a characteristic feature of the pinealocytes in the pineal gland of mice and hamsters. This report presents the results of ultracytochemical studies carried out to clarify the nature and physiological significance of these vesicles. Using proteases and the PA-TCH-silver technique on ultrathin sections, it was concluded that the dense core of DCV was proteinaceous in nature. These data, correlated with previous pharmacological and cytophysiological studies, showed the important role of DCV in the storage and intracellular migration of a proteinaceous compound of unknown significance. However, in agreement with authors who hypothesized the elaboration of active peptidergic compounds in the mammalian pineal gland to explain some effects that could not be ascribed to indoleamines, it was proposed that DCV might store a carrier-neurohormone complex. The presence in the DCV of one indoleamine, such as serotonin, or of several indoleamines, has still not been established in mammals.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"106 1","pages":"413-428"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91290448","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}
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Adaptation of the lipase-colipase system to dietary lipid content in pig pancreatic tissue J. Mourot, T. Corring, Anne-Marie Gueugneau, A. Lapanouse
{"title":"Adaptation of the lipase-colipase system to dietary lipid content in pig pancreatic tissue","authors":"J. Mourot, T. Corring, A. Gueugneau, A. Lapanouse","doi":"10.1051/RND:19790110","DOIUrl":"https://doi.org/10.1051/RND:19790110","url":null,"abstract":"HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Adaptation of the lipase-colipase system to dietary lipid content in pig pancreatic tissue J. Mourot, T. Corring, Anne-Marie Gueugneau, A. Lapanouse","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"19 1","pages":"119-124"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81662321","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}
{"title":"Influence de l'alimentation des truies gravides sur l'évolution des réserves corporelles maternelles et le développement de la portée","authors":"M. Étienne","doi":"10.1051/RND:19790217","DOIUrl":"https://doi.org/10.1051/RND:19790217","url":null,"abstract":"","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"55 1","pages":"289-302"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80200966","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}
M. Davicco, J. Lefaivre, P. Thivend, J. Barlet, R. Dabert, B. Lassalas, R. Roux
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Feedback regulation of pancreatic secretion in the young milk-fed calf Marie-Jeanne Davicco, J. Lefaivre, P. Thivend, J. P. Barlet, R. Dabert, Bernadette Lassalas, R. Roux
它是一个多学科的开放获取档案，用于科学研究文件的存储和传播，无论它们是否出版。这些文件可能来自法国或国外的教学和研究机构，也可能来自公共或私人研究中心。HAL开放多学科档案旨在存放和传播来自法国或外国教育和研究机构、公共或私人实验室的已发表或未发表的研究级科学文件。Marie-Jeanne Davicco, J. Lefaivre, P. Thivend, J. P. Barlet, R. Dabert, Bernadette Lassalas, R. Roux
{"title":"Feedback regulation of pancreatic secretion in the young milk-fed calf","authors":"M. Davicco, J. Lefaivre, P. Thivend, J. Barlet, R. Dabert, B. Lassalas, R. Roux","doi":"10.1051/RND:19790715","DOIUrl":"https://doi.org/10.1051/RND:19790715","url":null,"abstract":"HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Feedback regulation of pancreatic secretion in the young milk-fed calf Marie-Jeanne Davicco, J. Lefaivre, P. Thivend, J. P. Barlet, R. Dabert, Bernadette Lassalas, R. Roux","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"41 1","pages":"1147-1152"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82493662","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}
Summary. Axenic (germfree) and holoxenic (conventional) rats were fed diets which were different as to (a) the mode of sterilization : autoclaving or gamma-irradiation ; (b) the absence or presence of 10 p. 100 lactose added before sterilization. In addition, the autoclaved diet was offered to the rats in the form of pellets and the irradiated diet in the form of a paste. Important changes in bile acid metabolism were induced by these dietary modifications.
{"title":"Effect of different modifications of a semi-synthetic diet on bile acid metabolism in axenic and holoxenic rats","authors":"E. Sacquet, C. Leprince, M. Riottot","doi":"10.1051/RND:19791005","DOIUrl":"https://doi.org/10.1051/RND:19791005","url":null,"abstract":"Summary. Axenic (germfree) and holoxenic (conventional) rats were fed diets which were different as to (a) the mode of sterilization : autoclaving or gamma-irradiation ; (b) the absence or presence of 10 p. 100 lactose added before sterilization. In addition, the autoclaved diet was offered to the rats in the form of pellets and the irradiated diet in the form of a paste. Important changes in bile acid metabolism were induced by these dietary modifications.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"24 1","pages":"1677-1688"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74147364","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}
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Follicular kinetics in the mare ovary M.-A. Driancourt, Monique Cardon
{"title":"Follicular kinetics in the mare ovary","authors":"M. Driancourt, M. Cardon","doi":"10.1051/RND:19790905","DOIUrl":"https://doi.org/10.1051/RND:19790905","url":null,"abstract":"HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Follicular kinetics in the mare ovary M.-A. Driancourt, Monique Cardon","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"30 1","pages":"1443-1453"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74563373","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：