The Experts below are selected from a list of 27 Experts worldwide ranked by ideXlab platform
Haruto Kumura - One of the best experts on this subject based on the ideXlab platform.
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Distinct behavior of claudin-3 and -4 around lactation period in Mammary Alveolus in mice
Histochemistry and Cell Biology, 2011Co-Authors: Ken Kobayashi, Haruto KumuraAbstract:Tight junctions (TJs) are the most apical junctional complexes and restrict the fluid flux through the paracellular pathway. In the Mammary glands, the tightness of TJs occurs shortly after parturition to prevent the leakage of milk components from the lumen and the loosening of TJs is induced immediately after weaning. Claudins are transmembrane proteins, and their composition at the apical-most regions determines the permeability of TJs. In this study, we investigated the localization and expression patterns of claudin-3 and -4 in the Mammary glands around the lactation period because it is unclear how claudins construct Mammary TJs in the apical-most regions. Our results showed that claudin-3 and -4 change not only their level of expression but also their localization in the processes of parturition, lactation, and weaning. Claudin-3 was concentrated in the apical-most regions during lactation, whereas claudin-4 gradually decreased at the beginning of lactation and increased drastically immediately after weaning. The qualitative change of claudin-3 was also identified by western blotting analysis as an additional band around the lactation period. In addition, parts of the Mammary epithelial cells showed intensive positive reactions to claudin-4 in the lateral membrane and cytoplasm after weaning, concurrently with the involution Mammary glands. These results indicate that claudin-3 in the apical-most regions maintains the impermeable TJs during lactation, and claudin-4 contributes to the permeability changes of TJs immediately after parturition and weaning.
Burgos, Fábia Regina Nascimento Fernando - One of the best experts on this subject based on the ideXlab platform.
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Mastectomia radical e unilateral no tratamento de mastite gangrenosa em cabras
Programa de Pós-Graduação em Ciência Veterinária, 2009Co-Authors: Burgos, Fábia Regina Nascimento FernandoAbstract:Com o objetivo de avaliar a mastectomia radical e unilateral como procedimento cirúrgico de escolha no tratamento da mastite gangrenosa foram utilizadas quatro cabras, na faixa etária de dois a três anos de idade, sem raça definida. Todos os animais passaram por exame clínico, foram considerados portadores de mastite gangrenosa de curso agudo variando de três a quatro dias pós-partos. Submetidas à anestesia epidural baixa e mastectomia radical e unilateral. Na cultura bacteriana das amostras do leite ordenhado no período pré-operatório da glândula mamária não acometida pela mastite gangrenosa obteve-se a frequência de 25% (1/4) de cada microrganismo isolado, sendo respectivamente Staphylococcus sp. associado a Corynebacterium sp., Streptococcus sp., Corynebcterium sp.. Na cultura bacteriana da secreção da parte central do parênquima da mama gangrenosa de cada animal foram identificados nas amostras Corynebcterium sp., Staphylococcus coagulase negativa, Enterococcus faecalis eStaphylococcus sp. associado a Corynebacterium sp. com a frequência de 25% (1/4). Ao exame histológico do parênquima da glândula mamária os cortes revelaram presença de necrose de coagulação, proliferação fibroblástica, colágeno e infiltrado inflamatório mononuclear. Formação de placas hialinas sob o endotélio vascular e dilatação dos ductos excretores dos alvéolos mamários. Alguns “clusters” bacterianos limitados perifericamente por tecido conjuntivo. Hemorragia e hemosiderose no alvéolo mamário. Material caseoso na luz de alguns ductos excretores. Em outros, observou-se rosetas. O tempo de observação pós-operatória foi de 18 meses. Com o procedimento empregado mostrou-se a recuperação vital dos animais operados. Concluiu-se que a mastectomia, radical e unilateral, se presta para o tratamento da mastite gangrenosa. É essencial a adoção de medidas práticas de baixo custo que facilitem a vida dos produtores diminuindo seus gastos. Têm-se a perspectiva de que este trabalho sirva de subsídiopara a preservação no rebanho de animais de alta linhagem genética.With the objective of to evaluate the radical and unilateral mastectomy as surgical procedure of choice in the treatment of the gangrenous mastitis four goats were used in the age from two to three years old, without defined race. All the animals went by clinical exam, bearers of gangrenous mastitis of acute course were considered varying from three to four post parturition days. Undergoing low epidural anesthesia and radical and unilateral mastectomy. In the bacterial culture of the samples of the milk milked in the preoperative period of the Mammary gland not attacked by the gangrenous mastitis it was obtained the frequency of 25% (1/4) of each isolated microorganism, being respectively Staphylococcus sp. associated the Corynebacterium sp. , Streptococcus sp. , Corynebcterium sp. . In the bacterial culture of the secretion of the centre part of the parenchyma of the gangrenous mamma of each animal they were identified in the samples Corynebcterium sp. , Staphylococcus negative coagulate, Enterococcus faecalis and Staphylococcus sp. associated the Corynebacterium sp. with the frequency of 25%(1/4). To the exam histologyc of the parenchyma of the Mammary gland the cuts revealed presence of coagulation necrosis, proliferation fibroblastic, collagen and infiltrated inflammatory mononuclear. Formation of plates hyalins under the vascular endothelium and dilation of the ducts excretorys of the Mammary alveoli. Some "clusters" limited bacterial for conjunctive tissue. Hemorrhage and hemossiderosis in the Mammary Alveolus. Caseous material in the light of some ducts excretorys. In other,roseates was observed. The time of postoperative observation was of 18 months. With the employed procedure the vital recovery of the operated animals was shown. It was ended that the mastectomy, radical and unilateral, it is rendered for the treatment of the gangrenous mastiti. It is essential the adoption of measures practices of low cost that facilitate the life of the producers reducing your expenses. The perspective that this work serves as subsidy for the preservation in the flock of animals of high genetic lineage.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPE
Fábia Regina Nascimento Fernando Burgos - One of the best experts on this subject based on the ideXlab platform.
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Mastectomia radical e unilateral no tratamento de mastite gangrenosa em cabras
Universidade Federal Rural de Pernambuco, 2009Co-Authors: Fábia Regina Nascimento Fernando BurgosAbstract:Com o objetivo de avaliar a mastectomia radical e unilateral como procedimento cirúrgico de escolha no tratamento da mastite gangrenosa foram utilizadas quatro cabras, na faixa etária de dois a três anos de idade, sem raça definida. Todos os animais passaram por exame clínico, foram considerados portadores de mastite gangrenosa de curso agudo variando de três a quatro dias pós-partos. Submetidas à anestesia epidural baixa e mastectomia radical e unilateral. Na cultura bacteriana das amostras do leite ordenhado no período pré-operatório da glândula mamária não acometida pela mastite gangrenosa obteve-se a frequência de 25% (1/4) de cada microrganismo isolado, sendo respectivamente Staphylococcus sp. associado a Corynebacterium sp., Streptococcus sp., Corynebcterium sp.. Na cultura bacteriana da secreção da parte central do parênquima da mama gangrenosa de cada animal foram identificados nas amostras Corynebcterium sp., Staphylococcus coagulase negativa, Enterococcus faecalis eStaphylococcus sp. associado a Corynebacterium sp. com a frequência de 25% (1/4). Ao exame histológico do parênquima da glândula mamária os cortes revelaram presença de necrose de coagulação, proliferação fibroblástica, colágeno e infiltrado inflamatório mononuclear. Formação de placas hialinas sob o endotélio vascular e dilatação dos ductos excretores dos alvéolos mamários. Alguns clusters bacterianos limitados perifericamente por tecido conjuntivo. Hemorragia e hemosiderose no alvéolo mamário. Material caseoso na luz de alguns ductos excretores. Em outros, observou-se rosetas. O tempo de observação pós-operatória foi de 18 meses. Com o procedimento empregado mostrou-se a recuperação vital dos animais operados. Concluiu-se que a mastectomia, radical e unilateral, se presta para o tratamento da mastite gangrenosa. É essencial a adoção de medidas práticas de baixo custo que facilitem a vida dos produtores diminuindo seus gastos. Têm-se a perspectiva de que este trabalho sirva de subsídiopara a preservação no rebanho de animais de alta linhagem genética.With the objective of to evaluate the radical and unilateral mastectomy as surgical procedure of choice in the treatment of the gangrenous mastitis four goats were used in the age from two to three years old, without defined race. All the animals went by clinical exam, bearers of gangrenous mastitis of acute course were considered varying from three to four post parturition days. Undergoing low epidural anesthesia and radical and unilateral mastectomy. In the bacterial culture of the samples of the milk milked in the preoperative period of the Mammary gland not attacked by the gangrenous mastitis it was obtained the frequency of 25% (1/4) of each isolated microorganism, being respectively Staphylococcus sp. associated the Corynebacterium sp. , Streptococcus sp. , Corynebcterium sp. . In the bacterial culture of the secretion of the centre part of the parenchyma of the gangrenous mamma of each animal they were identified in the samples Corynebcterium sp. , Staphylococcus negative coagulate, Enterococcus faecalis and Staphylococcus sp. associated the Corynebacterium sp. with the frequency of 25%(1/4). To the exam histologyc of the parenchyma of the Mammary gland the cuts revealed presence of coagulation necrosis, proliferation fibroblastic, collagen and infiltrated inflammatory mononuclear. Formation of plates hyalins under the vascular endothelium and dilation of the ducts excretorys of the Mammary alveoli. Some "clusters" limited bacterial for conjunctive tissue. Hemorrhage and hemossiderosis in the Mammary Alveolus. Caseous material in the light of some ducts excretorys. In other,roseates was observed. The time of postoperative observation was of 18 months. With the employed procedure the vital recovery of the operated animals was shown. It was ended that the mastectomy, radical and unilateral, it is rendered for the treatment of the gangrenous mastiti. It is essential the adoption of measures practices of low cost that facilitate the life of the producers reducing your expenses. The perspective that this work serves as subsidy for the preservation in the flock of animals of high genetic lineage
Ken Kobayashi - One of the best experts on this subject based on the ideXlab platform.
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Distinct behavior of claudin-3 and -4 around lactation period in Mammary Alveolus in mice
Histochemistry and Cell Biology, 2011Co-Authors: Ken Kobayashi, Haruto KumuraAbstract:Tight junctions (TJs) are the most apical junctional complexes and restrict the fluid flux through the paracellular pathway. In the Mammary glands, the tightness of TJs occurs shortly after parturition to prevent the leakage of milk components from the lumen and the loosening of TJs is induced immediately after weaning. Claudins are transmembrane proteins, and their composition at the apical-most regions determines the permeability of TJs. In this study, we investigated the localization and expression patterns of claudin-3 and -4 in the Mammary glands around the lactation period because it is unclear how claudins construct Mammary TJs in the apical-most regions. Our results showed that claudin-3 and -4 change not only their level of expression but also their localization in the processes of parturition, lactation, and weaning. Claudin-3 was concentrated in the apical-most regions during lactation, whereas claudin-4 gradually decreased at the beginning of lactation and increased drastically immediately after weaning. The qualitative change of claudin-3 was also identified by western blotting analysis as an additional band around the lactation period. In addition, parts of the Mammary epithelial cells showed intensive positive reactions to claudin-4 in the lateral membrane and cytoplasm after weaning, concurrently with the involution Mammary glands. These results indicate that claudin-3 in the apical-most regions maintains the impermeable TJs during lactation, and claudin-4 contributes to the permeability changes of TJs immediately after parturition and weaning.
Listijani Suhargo - One of the best experts on this subject based on the ideXlab platform.
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Kemampuan jamur tiram (Pleurotus ostreatus) sebagai suplemen untuk peningkatan sekresi air susu dan diameter Alveolus kelenjar ambing mencit
Indonesian Biological Society, 2012Co-Authors: I.b. Rai Pidada, Listijani SuhargoAbstract:This study was aimed to know the effects of oyster mushroom supplement to milk secretion and Mammary Alveolus diameter of mice. The research was carried out under laboratory condition at the laboratory of Reproduction Biology, Faculty of Mathematic and Sciences, Airlangga University by using Complete Random Method. The study was designed by using totally 32 mice post partum (PP) and devided into four groups of treatment which consisted 8 female mice post partum of each group. The groups are: (a) the control groups, the groups that were given 0.2 ml aquadest, (b) the treatments of oyster mushroom solution with 3 variation of mushroom concentration, there are 2%, 4% and 6%. The oyster mushroom solution was given by gavage. The treatments were started on 3th to 12th day of lactation period. The increasing of milk secretion were showed by the increasing of body weight of offsprings. The data were collected from the difference result of the balance of weight body of offspring and the data were observed on 4th, 6th, 8th, 10th, and 12th of lactation periode and then on 13th day, the mice (five mice for each group) were killed to make histological preparat of Mammary glands. The datas were analyzed by ANOVA and LSD test (a = 0.05). The results of this research showed that oyster mushroom supplement can increase milk secretion and Mammary Alveolus diameter of mice. Oyster mushroom with 6% concentration gave the best effects And there was a positive corelation between the weight of oyster mushroom that was used with the increasing of the oyster mushroom effects
