Acid phosphatase and cathepsin D are active expressed enzymes in the placenta of the cat

Minazaki, Cláudia Kiyomi; Gagioti, S; Zago, Douglas; Terra, Walter R.; Araújo, Veneziano; Oliveira, Rosilene Aparecida de; Bevilacqua, Estela

doi:10.1016/j.rvsc.2007.06.013

Cited by 7 publications

(4 citation statements)

References 33 publications

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“…More expressive than acid phosphatase activity, cathepsin D seems to be a characteristic of the phagocytosing trophoblast. Biochemical analyses of hemophagous region of the cat placenta, characterized by intense erythrophagocytosis show a low acid phosphatase activity (44 %) and high values in cathepsin D activity (> 300 %) in relation to the nonphagocytic areas of the placenta (Minazaki et al, 2008). Immunohistochemistry also confirmed these results (Fig.…”

Section: Tissue Remodelingsupporting

confidence: 64%

Trophoblast phagocytic program: roles in different placental systems

Bevilacqua

Hoshida²,

Amarante-Paffaro³

et al. 2010

Int. J. Dev. Biol.

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Section: Tissue Remodelingsupporting

confidence: 64%

Trophoblast phagocytic program: roles in different placental systems

Bevilacqua

Hoshida²,

Amarante-Paffaro³

et al. 2010

Int. J. Dev. Biol.

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“…Fetal fluids are contained within membranes that are essential for metabolic, gaseous and hormonal exchange [ 1 ]. These fluids also function to protect embryos from physical damage and are essential for the safety of the conceptus.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Biochemical Composition of Amniotic and Allantoic Fluids at Different Stages of Pregnancy in Queens

Bigliardi

Rizzi

Bertocchi

et al. 2022

Animals

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Fetal fluid contents have functions in protecting fetuses and are essential for fetal development and maturation. However, little is known about the exact physiological functions of fetal fluids in fetal development, as well as the changing composition throughout the gestational period in cats. In this study, the biochemical composition of amniotic (AMN) and allantoic (ALL) fluids was investigated, as well as in the maternal serum of pregnant queens. Eighteen queens were included in this study and assigned to six different groups, D20, D25, D30, D40, D45 and D60, according to the gestational stage of fetal development. A total of 44 amniotic and 37 allantoic samples were collected. Fetal fluids contained lesser concentrations of alanine aminotransferase, albumin, cholesterol, triglycerides, creatine kinase, amylase, total protein and globulin than maternal serum. Other variables, such as aspartate aminotransferase, gamma-glutamyl transferase, bilirubin and alkaline phosphatase, were in different concentrations at specific stages of gestation when compared to maternal serum. There were no differences between fetal fluids and maternal serum for lactate dehydrogenase, urea, lipase or glucose concentrations. There were greater concentrations of creatinine in amniotic fluid than in allantoic fluid or maternal serum. Based on the results of this study, fetal fluids do not accumulate as a result of the simple filtration of maternal blood, but rather, the fetus produces many of these components as a consequence of organ development and maturation.

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“…The amnion formation occurs on days 13-14 of pregnancy in cattle, and then, the Amniotic Fluid (AF) fills the amniotic sac (Robert, 1986). Fetal membranes are extra-embryonic in nature (Minazaki et al, 2008). Amniotic fluid (AF), the protective liquid contained in the amniotic sac, is essential for fetal development and growth during gestation (Underwood et al, 2005, Fitzsimmons andBajaj, 2019).…”

Section: Introductionmentioning

confidence: 99%

Comparison between Biochemical Analysis of Cattle Amniotic Fluid and Maternal Serum Components during Pregnancy.

Essawi¹,

Mostafa²,

Shorbagy³

2020

jwpr

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The present study aimed to compare the biochemical components including Total Protein (TP), albumin, globulins, cholesterol, triglycerides, High and Low-Density Lipoproteins (HDL and LDL), creatinine, urea, sodium (Na), potassium (K), chloride (Cl), calcium (Ca) and inorganic phosphorus (P), of Amniotic Fluid (AF) with those of Maternal Serum (MS) during the first, second and third trimesters of pregnancy in cattle and Fetal Serum (FS) at birth. At birth AF, MS and FS were collected. Maternal blood samples and gravid uteri were collected after accidental slaughter. The actual data recorded during three trimesters according to the curved crown-anus length of the fetus. The MS concentrations of globulins, cholesterol, triglycerides, lipoproteins, creatinine, Na, K, Cl, Ca and inorganic-P were significantly higher than the AF during the first trimester. At delivery, the concentrations of cholesterol, triglycerides, and creatinine in the AF were lower than those in the MS or FS. The concentrations of Ca and inorganic-P in the FS were higher than those in the MS or AF. The levels of TP, creatinine, urea in the AF and urea in the MS increased as the gestation stages advanced. The levels of Na and Ca in the AF decreased as the gestation stage advanced while the K concentration increased. In conclusion, our results indicated an active placental transport for Ca and P. The TP, albumin, globulins, cholesterol, triglycerides, HDL and LDL, creatinine, urea, Na, K, Cl, Ca and P in AF and MS during the first, second and third trimesters of pregnancy in cattle might be changed with progressing the gestation.

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Acid phosphatase and cathepsin D are active expressed enzymes in the placenta of the cat

Cited by 7 publications

References 33 publications

Trophoblast phagocytic program: roles in different placental systems

Trophoblast phagocytic program: roles in different placental systems

Evaluation of Biochemical Composition of Amniotic and Allantoic Fluids at Different Stages of Pregnancy in Queens

Comparison between Biochemical Analysis of Cattle Amniotic Fluid and Maternal Serum Components during Pregnancy.

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