1
|
Hashem NM, Essawi WM, El-Raghi AA. Ovarian activity, hormone profile, pro-inflammatory cytokines and reproductive performance of buffalo cows fed diets with different estrogenicity. J Anim Physiol Anim Nutr (Berl) 2024; 108:1-12. [PMID: 37377415 DOI: 10.1111/jpn.13854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
Buffalo cows play a vital role in milk and meat production; however, they are characterised by several reproductive disorders. Feeding diets with high oestrogenic activity may be a disrupting factor. This study aimed to evaluate the effects of feeding roughages with different oestrogenic activity on the reproductive performance of early postpartum buffalo cows. A total of 30 buffalo cows were equally stratified into two experimental groups and fed either Trifolium alexandrinum (Berseem clover, phytoestrogenic roughage) or corn silage (nonoestrogenic roughage) for 90 consecutive days. After 35 days from the beginning of the feeding treatments, buffalo cows in both groups were synchronized for oestrus using a double i.m. injection of 2 mL prostaglandin F2α , 11 days apart, subsequently, overt signs of oestrus were observed and recorded. Moreover, ovarian structures, numbers and sizes of follicles and corpora lutea, were ultrasonography examined at day-12 (represents Day 35 of feeding treatment), Day 0 (day of oestrus) and Day 11 after oestrous synchronization (mid-luteal phase). Pregnancy was diagnosed 35 days postinsemination. Blood serum samples were analysed for progesterone (P4 ), estradiol (E2 ), tumor necrosis factor (TNF-α), interlukein-1β (IL-1β) and nitric oxide (NO). The high performance liquid chromatography-analysis of roughages showed the abundance of isoflavones in Berseem clover, with about 58 times higher concentration than that in corn silage group. During the experimental period, the numbers of ovarian follicles of all size categories were higher in the Berseem clover group than that in the corn silage group. No significant difference in the numbers of corpora lutea was observed between both experimental groups, but lower (p < 0.05) diameter of corpus luteum was observed in the Berseem clover group than that in the corn silage group. The Berseem clover group had higher (p < 0.05) overall concentrations of blood serum E2 , IL-1β and TNF-α, but lower (p < 0.05) overall concentrations of blood serum P4 than those recorded in the corn silage group. Oestrous rate, onset of oestrus time and oestrous duration were not significantly affected by the treatment. The conception rate was significantly (p < 0.05) reduced in the Berseem clover group compared with that in the corn silage group. In conclusion, feeding roughage with a high oestrogenic activity such as Berseem clover can negatively affect the conception rate of buffalo cows. This reproductive loss seems to be associated with inadequate luteal function and P4 concentration during early pregnancy.
Collapse
Affiliation(s)
- Nesrein M Hashem
- Department of Animal and Fish Production, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
| | - Walaa M Essawi
- Department of Theriogenology, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt
| | - Ali A El-Raghi
- Department of Animal, Poultry and Fish Production, Faculty of Agriculture, Damietta University, Damietta, Egypt
| |
Collapse
|
2
|
Dewulf M, Van Eetvelde M, Wiczkowski W, Opsomer G. Dairy calves are exposed to isoflavones during the developmentally most sensitive period of their life. Theriogenology 2023; 201:53-58. [PMID: 36841122 DOI: 10.1016/j.theriogenology.2023.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/13/2023] [Accepted: 02/09/2023] [Indexed: 02/12/2023]
Abstract
Isoflavones represent a class of phytoestrogens present in plants. In dairy cows, dietary isoflavones have been shown to negatively affect reproductive performance. To the best of our knowledge, no studies have yet been conducted to determine if calves are pre- or neonatally confronted with isoflavones and their metabolites. In the present study, we hypothesize that isoflavones are passed on from the dam to the offspring in utero. Twenty-three pregnant Holstein Friesian dams and their calves, originating from three commercial dairy farms in Belgium, were included. Heparin blood samples were collected during the first, second, and third trimester of gestation from all pregnant dams. Heparin blood and hair samples were obtained from the offspring within 24 h after parturition. Colostrum samples were collected from a subset of eight dams to determine the concentration of isoflavones and their metabolites. During the first and second trimester of gestation, the dams were fed either a youngstock (nulliparous dams) or a lactation (multiparous dams) diet. During the third trimester, both groups received a similar dry cow diet. Genistein and daidzein levels were unaffected by diet type, while their metabolite [equol, dihydrodaidzein (DHD), and o-desmethylangolensin (ODMA)] concentrations were significantly higher in the lactation group. Furthermore, metabolite concentrations decreased significantly during gestation. Isoflavones and their metabolites were detected in all colostrum samples. No correlation could be found between levels in colostrum and blood of pregnant dams or calves. Peripheral levels of isoflavones and their metabolites were significantly lower in newborn calves in comparison to their dams. Genistein and daidzein concentrations were found to be significantly higher in the calves' hair versus blood samples, suggesting prenatal exposure to isoflavones for an extended period of time. In contrast, no isoflavone metabolites were detected in the calves' hair samples. This is the first study to demonstrate that dairy calves are exposed to isoflavones during the developmentally most sensitive period of their lives. Results obtained pave the way for more extensive research to examine which effects isoflavones might have on developing organ systems like the reproductive system.
Collapse
Affiliation(s)
- Manon Dewulf
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
| | - Mieke Van Eetvelde
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Wiesław Wiczkowski
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences in Olsztyn, Tuwima 10, 10-748, Olsztyn, Poland
| | - Geert Opsomer
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| |
Collapse
|
3
|
Penagos-Tabares F, Sulyok M, Artavia JI, Flores-Quiroz SI, Garzón-Pérez C, Castillo-Lopez E, Zavala L, Orozco JD, Faas J, Krska R, Zebeli Q. Mixtures of Mycotoxins, Phytoestrogens, and Other Secondary Metabolites in Whole-Plant Corn Silages and Total Mixed Rations of Dairy Farms in Central and Northern Mexico. Toxins (Basel) 2023; 15:153. [PMID: 36828467 PMCID: PMC9965745 DOI: 10.3390/toxins15020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
Mycotoxins and endocrine disruptors such as phytoestrogens can affect cattle health, reproduction, and productivity. Most studies of mycotoxins in dairy feeds in Mexico and worldwide have been focused on a few (regulated) mycotoxins. In contrast, less known fungal toxins, phytoestrogens, and other metabolites have been neglected and underestimated. This study analyzed a broad spectrum (>800) of mycotoxins, phytoestrogens, and fungal, plant, and unspecific secondary metabolites in whole-plant corn silages (WPCSs) and total mixed rations (TMRs) collected from 19 Mexican dairy farms. A validated multi-metabolite liquid chromatography/electrospray ionization-tandem mass spectrometric (LC/ESI-MS/MS) method was used. Our results revealed 125 of >800 tested (potentially toxic) secondary metabolites. WPCSs/TMRs in Mexico presented ubiquitous contamination with mycotoxins, phytoestrogens, and other metabolites. The average number of mycotoxins per TMR was 24, ranging from 9 to 31. Fusarium-derived secondary metabolites showed the highest frequencies, concentrations, and diversity among the detected fungal compounds. The most frequently detected mycotoxins in TMRs were zearalenone (ZEN) (100%), fumonisin B1 (FB1) (84%), and deoxynivalenol (84%). Aflatoxin B1 (AFB1) and ochratoxin A (OTA), previously reported in Mexico, were not detected. All TMR samples tested positive for phytoestrogens. Among the investigated dietary ingredients, corn stover, sorghum silage, and concentrate proportions were the most correlated with levels of total mycotoxins, fumonisins (Fs), and ergot alkaloids, respectively.
Collapse
Affiliation(s)
- Felipe Penagos-Tabares
- Unit of Nutritional Physiology, Institute of Physiology, Pathophysiology, and Biophysics, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
- Christian-Doppler-Laboratory for Innovative Gut Health Concepts in Livestock (CDL-LiveGUT), Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Veterinaerplatz 1, 1210 Vienna, Austria
- FFoQSI GmbH—Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Technopark 1C, 3430 Tulln, Austria
| | - Michael Sulyok
- Department of Agrobiotechnology, IFA-Tulln, Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Vienna, Konrad-Lorenz-Strasse 20, 3430 Tulln, Austria
| | | | - Samanta-Irais Flores-Quiroz
- Facultad de Estudios Superiores Cuautitlán, Cuautitlán, Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli 54714, Mexico
| | - César Garzón-Pérez
- Facultad de Estudios Superiores Cuautitlán, Cuautitlán, Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli 54714, Mexico
| | - Ezequías Castillo-Lopez
- Christian-Doppler-Laboratory for Innovative Gut Health Concepts in Livestock (CDL-LiveGUT), Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Veterinaerplatz 1, 1210 Vienna, Austria
- Institute of Animal Nutrition and Functional Plant Compounds, Department of Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
| | - Luis Zavala
- DSM-BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria
| | | | - Johannes Faas
- DSM-BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria
| | - Rudolf Krska
- Department of Agrobiotechnology, IFA-Tulln, Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences, Vienna, Konrad-Lorenz-Strasse 20, 3430 Tulln, Austria
- Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, UK
| | - Qendrim Zebeli
- Christian-Doppler-Laboratory for Innovative Gut Health Concepts in Livestock (CDL-LiveGUT), Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Veterinaerplatz 1, 1210 Vienna, Austria
- Institute of Animal Nutrition and Functional Plant Compounds, Department of Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
| |
Collapse
|
4
|
Penagos-Tabares F, Khiaosa-ard R, Schmidt M, Bartl EM, Kehrer J, Nagl V, Faas J, Sulyok M, Krska R, Zebeli Q. Cocktails of Mycotoxins, Phytoestrogens, and Other Secondary Metabolites in Diets of Dairy Cows in Austria: Inferences from Diet Composition and Geo-Climatic Factors. Toxins (Basel) 2022; 14:toxins14070493. [PMID: 35878231 PMCID: PMC9318294 DOI: 10.3390/toxins14070493] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/10/2022] [Accepted: 07/12/2022] [Indexed: 12/11/2022] Open
Abstract
Dairy production is a pivotal economic sector of Austrian and European agriculture. Dietary toxins and endocrine disruptors of natural origin such as mycotoxins and phytoestrogens can affect animal health, reproduction, and productivity. This study characterized the profile of a wide spectrum of fungal, plant, and unspecific secondary metabolites, including regulated, emerging, and modified mycotoxins, phytoestrogens, and cyanogenic glucosides, in complete diets of lactating cows from 100 Austrian dairy farms. To achieve this, a validated multi-metabolite liquid chromatography/electrospray ionization−tandem mass spectrometric (LC/ESI−MS/MS) method was employed, detecting 155 of >800 tested metabolites. Additionally, the most influential dietary and geo-climatic factors related to the dietary mycotoxin contamination of Austrian dairy cattle were recognized. We evidenced that the diets of Austrian dairy cows presented ubiquitous contamination with mixtures of mycotoxins and phytoestrogens. Metabolites derived from Fusarium spp. presented the highest concentrations, were the most recurrent, and had the highest diversity among the detected fungal compounds. Zearalenone, deoxynivalenol, and fumonisin B1 were the most frequently occurring mycotoxins considered in the EU legislation, with detection frequencies >70%. Among the investigated dietary factors, inclusion of maize silage (MS) and straw in the diets was the most influential factor in contamination with Fusarium-derived and other fungal toxins and metabolites, and temperature was the most influential among the geo-climatic factors.
Collapse
Affiliation(s)
- Felipe Penagos-Tabares
- Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria; (F.P.-T.); (M.S.); (E.-M.B.); (J.K.); (Q.Z.)
| | - Ratchaneewan Khiaosa-ard
- Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria; (F.P.-T.); (M.S.); (E.-M.B.); (J.K.); (Q.Z.)
- Correspondence:
| | - Marlene Schmidt
- Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria; (F.P.-T.); (M.S.); (E.-M.B.); (J.K.); (Q.Z.)
| | - Eva-Maria Bartl
- Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria; (F.P.-T.); (M.S.); (E.-M.B.); (J.K.); (Q.Z.)
| | - Johanna Kehrer
- Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria; (F.P.-T.); (M.S.); (E.-M.B.); (J.K.); (Q.Z.)
| | - Veronika Nagl
- DSM—BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria; (V.N.); (J.F.)
| | - Johannes Faas
- DSM—BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria; (V.N.); (J.F.)
| | - Michael Sulyok
- Department of Agrobiotechnology (IFA-Tulln), Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences Vienna, Konrad Lorenz-Strasse 20, 3430 Tulln, Austria; (M.S.); (R.K.)
| | - Rudolf Krska
- Department of Agrobiotechnology (IFA-Tulln), Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences Vienna, Konrad Lorenz-Strasse 20, 3430 Tulln, Austria; (M.S.); (R.K.)
- Institute for Global Food Security, School of Biological Sciences, University Road, Belfast BT7 1NN, UK
| | - Qendrim Zebeli
- Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria; (F.P.-T.); (M.S.); (E.-M.B.); (J.K.); (Q.Z.)
- Christian-Doppler-Laboratory for Innovative Gut Health Concepts in Livestock (CDL-LiveGUT), Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
| |
Collapse
|
5
|
Tran-Guzman A, Moradian R, Cui H, Culty M. In vitro impact of genistein and mono(2-ethylhexyl) phthalate (MEHP) on the eicosanoid pathway in spermatogonial stem cells. Reprod Toxicol 2021; 107:150-165. [PMID: 34942354 DOI: 10.1016/j.reprotox.2021.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 12/16/2021] [Accepted: 12/19/2021] [Indexed: 02/09/2023]
Abstract
Perinatal exposures to endocrine disrupting chemicals (EDCs) alter the male reproductive system. Infants are exposed to genistein (GEN) through soy-based formula, and to Mono(2-ethylhexyl) Phthalate (MEHP), metabolite of the plasticizer DEHP. Spermatogonial stem cells (SSCs) are formed in infancy and their integrity is essential for spermatogenesis. Thus, understanding the impact of EDCs on SSCs is critical. Prostaglandins (PGs) are inflammatory mediators synthesized via the eicosanoid pathway starting with cyclooxygenases (Coxs), that regulate physiological and pathological processes. Our goal was to study the eicosanoid pathway in SSCs and examine whether it was disrupted by GEN and MEHP, potentially contributing to their adverse effects. The mouse C18-4 cell line used as SSC model expressed high levels of Cox1 and Cox2 genes and proteins, and eicosanoid pathway genes similarly to levels measured in primary rat spermatogonia. Treatments with GEN and MEHP at 10 and 100 μM decreased Cox1 gene and protein expression, whereas Cox2, phospholipase A2, prostaglandin synthases transcripts, PGE2, PGF2a and PGD2 were upregulated. Simultaneously, the transcript levels of spermatogonia progenitor markers Foxo1 and Mcam and differentiated spermatogonial markers cKit and Stra8 were increased. Foxo1 was also increased by EDCs in primary rat spermatogonia. This study shows that the eicosanoid pathway is altered during SSC differentiation and that exposure to GEN and MEHP disrupts this process, mainly driven by GEN effects on Cox2 pathway, while MEHP acts through an alternative mechanism. Thus, understanding the role of Cox enzymes in SSCs and how GEN and MEHP exposures alter their differentiation warrants further studies.
Collapse
Affiliation(s)
- Amy Tran-Guzman
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - Renita Moradian
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - Haoyi Cui
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - Martine Culty
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA.
| |
Collapse
|
6
|
Grgic D, Varga E, Novak B, Müller A, Marko D. Isoflavones in Animals: Metabolism and Effects in Livestock and Occurrence in Feed. Toxins (Basel) 2021; 13:836. [PMID: 34941674 PMCID: PMC8705642 DOI: 10.3390/toxins13120836] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/29/2022] Open
Abstract
Soybeans are a common ingredient of animal feed. They contain isoflavones, which are known to act as phytoestrogens in animals. Isoflavones were described to have beneficial effects on farm animals. However, there are also reports of negative outcomes after the consumption of isoflavones. This review summarizes the current knowledge of metabolization of isoflavones (including the influence of the microbiome, phase I and phase II metabolism), as well as the distribution of isoflavones and their metabolites in tissues. Furthermore, published studies on effects of isoflavones in livestock species (pigs, poultry, ruminants, fish) are reviewed. Moreover, published studies on occurrence of isoflavones in feed materials and co-occurrence with zearalenone are presented and are supplemented with our own survey data.
Collapse
Affiliation(s)
- Dino Grgic
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Str. 38-40, 1090 Vienna, Austria; (D.G.); (E.V.)
| | - Elisabeth Varga
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Str. 38-40, 1090 Vienna, Austria; (D.G.); (E.V.)
| | - Barbara Novak
- BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria; (B.N.); (A.M.)
| | - Anneliese Müller
- BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria; (B.N.); (A.M.)
| | - Doris Marko
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Str. 38-40, 1090 Vienna, Austria; (D.G.); (E.V.)
| |
Collapse
|
7
|
Kagan IA. Soluble phenolic compounds of perennial ryegrass (Lolium perenne L.): Potential effects on animal performance, and challenges in determining profiles and concentrations. Anim Feed Sci Technol 2021. [DOI: 10.1016/j.anifeedsci.2021.114960] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
8
|
Awapak D, Petchkongkaew A, Sulyok M, Krska R. Co-occurrence and toxicological relevance of secondary metabolites in dairy cow feed from Thailand. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1013-1027. [PMID: 33861173 DOI: 10.1080/19440049.2021.1905186] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The occurrence of secondary metabolites and co-contaminants in dairy cow feed samples (n = 115), concentrate, roughage, and mixed feed, collected from Ratchaburi and Kanjanaburi provinces, Thailand, between August 2018 and March 2019 were investigated using LC-MS/MS based multi-toxin method. A total of 113 metabolites were found in the samples. Fungal metabolites were the predominant compounds, followed by plant metabolites. Among major mycotoxins, zearalenone and fumonisins were most frequently detected in concentrate and mixed feed samples, while deoxynivalenol and aflatoxin B1 were found at the frequency lower than 50%. Other metabolites, produced by Aspergillus, Fusarium, Penicillium, and Alternaria species, occurred in the samples. Flavoglaucin, 3-nitropropionic acid, averufin, and sterigmatocystin were the most prevalent Aspergillus metabolites. Common Fusarium metabolites occurring in the samples included moniliformin, beauvericin, and enniatins. For Penicillium metabolites, mycophenolic acid, questiomycin A, quinolactacin A, oxaline, citrinin, and dihydrocitrinone were frequently detected. The toxic Alternaria metabolites, alternariol, and alternariol monomethyl ether showed the high incidence in the samples. Plant metabolites were commonly found, mainly cyanogenic compounds and isoflavones, from cassava and soybean meal used as feed ingredients. Overall, 96.6% of feed samples contained at least two metabolites, in a range from 2 to 69. According to co-contamination of mycotoxins found in feed samples, zearalenone were mostly found in combination with fumonisin B1, deoxynivalenol, and aflatoxin B1. Fumonisin B1 co-occurred with aflatoxin B1 and deoxynivalenol. The mixtures of deoxynivalenol and aflatoxin B1, and of zearalenone, fumonisin B1 and deoxynivalenol were also found. Due to known individual toxicity of fungal and plant metabolites and possible additive or synergistic toxic effects of multi-mycotoxins, the occurrence of these metabolites and co-contaminants should be monitored continuously to ensure food safety through the dairy supply chain.
Collapse
Affiliation(s)
- Darika Awapak
- School of Food Science and Technology, Faculty of Science and Technology, Thammasat University (Rangsit Campus), Khong Luang, Thailand
| | - Awanwee Petchkongkaew
- School of Food Science and Technology, Faculty of Science and Technology, Thammasat University (Rangsit Campus), Khong Luang, Thailand
| | - Michael Sulyok
- Institute of Bioanalytics and Agro-Metabolomics, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria
| | - Rudolf Krska
- Institute of Bioanalytics and Agro-Metabolomics, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria
| |
Collapse
|
9
|
Jacobson C, Bruce M, Kenyon PR, Lockwood A, Miller D, Refshauge G, Masters DG. A review of dystocia in sheep. Small Rumin Res 2020. [DOI: 10.1016/j.smallrumres.2020.106209] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
10
|
Wang J, Dong X, Ma F, Li C, Bu R, Lu J, Gao J, Xue P. Metabolomics profiling reveals Echinops latifolius Tausch improves the trabecular micro-architecture of ovariectomized rats mainly via intervening amino acids and glycerophospholipids metabolism. JOURNAL OF ETHNOPHARMACOLOGY 2020; 260:113018. [PMID: 32502650 DOI: 10.1016/j.jep.2020.113018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/22/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Echinops latifolius Tausch (ELT) is traditional Mongolian medicine in China, and often used to against osteoporosis, strengthen tendons and bones, clear bones heat. AIM OF THE STUDY To study efficacy of ELT on ovariectomized (OVX) rats and underly metabolic pathways related to trabecular micro-architecture changing of OVX. MATERIALS AND METHODS Three-month-old female Wistar rats were randomly divided into 4 groups (n = 6) including normal group (without surgery), sham group (bilateral laparotomy), OVX group (bilateral ovariectomy), and ELT-treated groups (ELT-treated after bilateral ovariectomy). The effects of ELT on trabecular micro-architecture and biochemical markers of OVX rat were investigated by dual-energy X-ray absorptiometry machine and Enzyme-linked immunosorbent assay (ELISA), respectively. Untargeted metabolomics strategy was applied to discover the potential biomarkers and related metabolic pathways involving the progression of OVX-induced osteoporosis. RESULTS The trabecular micro-architecture and biochemical markers of OVX rats were improved by ELT. We found 36 potential biomarkers and 21 related metabolic pathways were involved in progression of OVX-induced osteoporosis. Amino acids metabolism and glycerophospholipids metabolism were mainly intervened in ELT treatment on ovariectomized rats. The disordered amino acids and glycerophospholipids metabolism closely related to the imbalance between bone resorption and formation were reversed by administration of ELT, indicating that the influences of ELT on OVX rats' trabecular micro-architecture may possible be associated with intervening amino acids and glycerophospholipids metabolism. CONCLUSIONS This approach may provide the metabolomic perspective to link metabolic alterations and anti-osteoporosis action of ELT, to further explain how ELT works in postmenopausal patients with bone loss.
Collapse
Affiliation(s)
- Jiaqi Wang
- Department of Pharmacy, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot, 010110, China
| | - Xin Dong
- Department of Pharmacy, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot, 010110, China
| | - Feixiang Ma
- Department of Pharmacy, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot, 010110, China
| | - Chunyan Li
- Department of Pharmacy, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot, 010110, China
| | - Ren Bu
- Department of Pharmacy, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot, 010110, China
| | - Jingkun Lu
- Department of Pharmacy, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot, 010110, China
| | - Jianping Gao
- Department of Pharmacy, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot, 010110, China.
| | - Peifeng Xue
- Department of Pharmacy, Inner Mongolia Medical University, Jinshan Development Zone, Hohhot, 010110, China.
| |
Collapse
|
11
|
Impacts of substitution of canola meal with soybean meal, with and without ruminally protected methionine, on production, reproduction and health of early lactation multiparous Holstein cows through 160 days in milk. Anim Feed Sci Technol 2020. [DOI: 10.1016/j.anifeedsci.2020.114494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
12
|
Migkos T, Applová L, Horký P, Tvrdý V, Karlíčková J, Macáková K, Hrubša M, Catapano MC, Tomanek M, Pour M, Mladěnka P. The influence of microbial isoflavonoid specific metabolites on platelets and transition metals iron and copper. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 62:152974. [PMID: 31181402 DOI: 10.1016/j.phymed.2019.152974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 05/24/2019] [Accepted: 05/25/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Isoflavonoids seem to possess positive cardiovascular and other beneficial effects in humans. HYPOTHESIS Their low bioavailability, however, indicates that small isoflavonoid metabolites formed by human microflora can significantly contribute to these activities. STUDY DESIGN Testing antiplatelet activity ex vivo in human blood and interaction with transition metals in vitro. METHODS The effect on platelet aggregation induced by different triggers (arachidonic acid, collagen, ADP, TRAP-6), and interactions with transition metals (iron and copper chelation/reduction) were evaluated against four isoflavonoid-specific metabolites: S-equol; O-desmethylangolensin; 2-(4-hydroxyphenyl) propionic acid (HPPA); and 4-ethylphenol. RESULTS S-equol, 4-ethylphenol and O-desmethylangolensin blocked platelet aggregation induced by arachidonic acid and collagen. S-equol even matched the potency of acetylsalicylic acid in the case of collagen, which is the most physiological inducer of aggregation. Moreover, their effects in general seemed to be biologically relevant and attainable at achievable plasma concentrations, with the exception of HPPA which was ineffective. While only O-desmethylangolensin mildly chelated iron and copper, all four compounds markedly reduced cupric ions. Their direct free radical scavenging effects seem to have little clinical relevance. CONCLUSION This study has shown that S-equol, O-desmethylangolensin and 4-ethylphenol, arising from isoflavonoid intake, can have biologically relevant effects on platelet aggregation.
Collapse
Affiliation(s)
- Thomas Migkos
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Lenka Applová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Pavel Horký
- Department of Inorganic and Organic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic; Department of Social and Clinical Pharmacy, Faculty of Pharmacy in Hradec Králové, Charles University, Zborovská 2089, Hradec Králové 500 05, Czech Republic
| | - Václav Tvrdý
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Jana Karlíčková
- Department of Pharmaceutical Botany, Faculty of Pharmacy in Hradec Králové, Charles, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Kateřina Macáková
- Department of Pharmaceutical Botany, Faculty of Pharmacy in Hradec Králové, Charles, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Marcel Hrubša
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Maria Carmen Catapano
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Magdalena Tomanek
- Institute of Chemistry, Department of Theoretical Chemistry, University of Silesia in Katowice, Faculty of Mathematics, Physics and Chemistry, Bankowa 14, Katowice 40-007, Poland
| | - Milan Pour
- Department of Inorganic and Organic Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, Hradec Králové 500 05, Czech Republic.
| |
Collapse
|
13
|
Salsano S, Pérez-Debén S, Quiñonero A, González-Martín R, Domínguez F. Phytoestrogen exposure alters endometrial stromal cells and interferes with decidualization signaling. Fertil Steril 2019; 112:947-958.e3. [PMID: 31371049 DOI: 10.1016/j.fertnstert.2019.06.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/31/2019] [Accepted: 06/10/2019] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To investigate whether phytoestrogens (genistein and daidzein) alter in vitro decidualization of human endometrial stromal cells (ESCs). DESIGN Isolated primary ESCs were exposed to phytoestrogens and decidualized in vitro. SETTING Academic fertility center. PATIENT(S) Twenty fertile oocyte donors attending the IVI Valencia clinic. INTERVENTION(S) Treatment of ESC with phytoestrogens at 0, 10, 20, 50, and 100 μM. MAIN OUTCOME MEASURE(S) The ESC proliferation was analyzed by MTS assay. In vitro decidualization was induced in the presence of phytoestrogens by medroxyprogesterone acetate/cyclic adenosine 3':5' monophosphate and evaluated by prolactin (PRL) ELISA and F-actin immunostaining. The Ki67 proliferative marker was analyzed by immunofluorescence. The ESC apoptosis was assessed by annexin V/propidium iodide detection using flow cytometry. Estrogen (ERβ) and P receptor (PR) localization were evaluated by immunofluorescence. RESULT(S) The ESC exposed to 0, 19, 20, 50, and 100 μM of genistein, daidzein, and genistein + daidzein showed a dose-dependent proliferation decrease. After 48-96 hours of culture, this reduction was significant in the presence of 50 μM of phytoestrogens versus 10 μM untreated ESC. The ESC decidualized in the presence of phytoestrogens did not rearrange their cytoskeletons and showed a significant decrease in PRL secretion compared with untreated decidualized ESCs (dESCs). However, phytoestrogens did not alter proliferative status or the percentage of viable/apoptotic cells in dESC compared with untreated dESC. During decidualization, phytoestrogens induced the same nuclear translocation of ERβ and PR as the control dESC. CONCLUSION(S) This study reveals that high doses of phytoestrogens could affect the in vitro decidualization process.
Collapse
Affiliation(s)
- Stefania Salsano
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Silvia Pérez-Debén
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Alicia Quiñonero
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | | | - Francisco Domínguez
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain; INCLIVA Biomedical Research Institute, Valencia, Spain.
| |
Collapse
|
14
|
Williams CL, Ybarra AR, Meredith AN, Durrant BS, Tubbs CW. Gut Microbiota and Phytoestrogen-Associated Infertility in Southern White Rhinoceros. mBio 2019; 10:e00311-19. [PMID: 30967461 PMCID: PMC6456749 DOI: 10.1128/mbio.00311-19] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 03/04/2019] [Indexed: 01/08/2023] Open
Abstract
With recent poaching of southern white rhinoceros (SWR [Ceratotherium simum simum]) reaching record levels, the need for a robust assurance population is urgent. However, the global captive SWR population is not currently self-sustaining due to the reproductive failure of captive-born females. Dietary phytoestrogens have been proposed to play a role in this phenomenon, and recent work has demonstrated a negative relationship between diet estrogenicity and fertility of captive-born female SWR. To further examine this relationship, we compared gut microbial communities, fecal phytoestrogens, and fertility of SWR to those of another rhinoceros species-the greater one-horned rhinoceros (GOHR [Rhinoceros unicornis]), which consumes a similar diet but exhibits high levels of fertility in captivity. Using 16S rRNA amplicon sequencing and mass spectrometry, we identified a species-specific fecal microbiota and three dominant fecal phytoestrogen profiles. These profiles exhibited various levels of estrogenicity when tested in an in vitro estrogen receptor activation assay for both rhinoceros species, with profiles dominated by the microbial metabolite equol stimulating the highest levels of receptor activation. Finally, we found that SWR fertility varies significantly not only with respect to phytoestrogen profile, but also with respect to the abundance of several bacterial taxa and microbially derived phytoestrogen metabolites. Taken together, these data suggest that in addition to species differences in estrogen receptor sensitivity to phytoestrogens, reproductive outcomes may be driven by the gut microbiota's transformation of dietary phytoestrogens in captive SWR females.IMPORTANCE Southern white rhinoceros (SWR) poaching has reached record levels, and captive infertility has rendered SWR assurance populations no longer self-sustaining. Previous work has identified dietary phytoestrogens as a likely cause of this problem. Here, we investigate the role of gut microbiota in this phenomenon by comparing two rhinoceros species to provide the first characterizations of gut microbiomes for any rhinoceros species. To our knowledge, our approach, combining parallel sequencing, mass spectrometry, and estrogen receptor activation assays, provides insight into the relationship between microbially mediated phytoestrogen metabolism and fertility that is novel for any vertebrate species. With this information, we plan to direct future work aimed at developing strategies to improve captive reproduction in the hope of alleviating their threat of extinction.
Collapse
Affiliation(s)
- Candace L Williams
- Institute for Conservation Research, San Diego Zoo Global, Escondido, California, USA
- Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Mississippi State, Mississippi, USA
| | - Alexis R Ybarra
- Institute for Conservation Research, San Diego Zoo Global, Escondido, California, USA
| | - Ashley N Meredith
- Mississippi State Chemical Laboratory, Mississippi State, Mississippi, USA
| | - Barbara S Durrant
- Institute for Conservation Research, San Diego Zoo Global, Escondido, California, USA
| | - Christopher W Tubbs
- Institute for Conservation Research, San Diego Zoo Global, Escondido, California, USA
| |
Collapse
|
15
|
Křížová L, Dadáková K, Kašparovská J, Kašparovský T. Isoflavones. Molecules 2019; 24:E1076. [PMID: 30893792 PMCID: PMC6470817 DOI: 10.3390/molecules24061076] [Citation(s) in RCA: 324] [Impact Index Per Article: 64.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 12/13/2022] Open
Abstract
Phytoestrogens are naturally occurring nonsteroidal phenolic plant compounds that, due to their molecular structure and size, resemble vertebrate steroids estrogens. This review is focused on plant flavonoids isoflavones, which are ranked among the most estrogenic compounds. The main dietary sources of isoflavones for humans are soybean and soybean products, which contain mainly daidzein and genistein. When they are consumed, they exert estrogenic and/or antiestrogenic effects. Isoflavones are considered chemoprotective and can be used as an alternative therapy for a wide range of hormonal disorders, including several cancer types, namely breast cancer and prostate cancer, cardiovascular diseases, osteoporosis, or menopausal symptoms. On the other hand, isoflavones may also be considered endocrine disruptors with possible negative influences on the state of health in a certain part of the population or on the environment. This review deals with isoflavone classification, structure, and occurrence, with their metabolism, biological, and health effects in humans and animals, and with their utilization and potential risks.
Collapse
Affiliation(s)
- Ludmila Křížová
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic.
| | - Kateřina Dadáková
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic.
| | - Jitka Kašparovská
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic.
| | - Tomáš Kašparovský
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic.
| |
Collapse
|
16
|
Hashem NM, El-Azrak KM, Nour El-Din ANM, Sallam SM, Taha TA, Salem MH. Effects of Trifolium alexandrinum phytoestrogens on oestrous behaviour, ovarian activity and reproductive performance of ewes during the non-breeding season. Anim Reprod Sci 2018; 196:1-8. [PMID: 29548568 DOI: 10.1016/j.anireprosci.2018.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 02/26/2018] [Accepted: 03/06/2018] [Indexed: 11/25/2022]
Abstract
Phytoestrogens are classified as naturally occurring endocrine disrupting chemicals that may affect reproductive performance of farm animals. To investigate the effects of Berseem clover phytoestrogens on reproductive performance of seasonal anoestrus ewes, twenty four late pregnant Rahmani ewes were fed either Berseem clover or maize silage (n = 12/treatment). Treatment started 2 months prepartum and continued until oestrous induction (week 8 postpartum), using the CIDR-eCG based protocol, and early pregnancy. Throughout the 2-8 weeks postpartum, oestrous rate and ovarian activity were not affected by treatment. After oestrous induction, ewes in both groups expressed comparable oestrous rates; however feeding Berseem clover extended (P < 0.05) interval to oestrus (57.00 compared with 42.54 h) and shortened (P < 0.05) oestrous duration (20.0 compared with 34.90 h). Feeding Berseem clover did not affect follicular activity except the number of medium follicles, which was less (P < 0.05) on day of oestrus (Day 0). Feeding maize silage increased (P < 0.05) the total number of follicles and number of small and medium follicles the day before oestrus (Day -1). On Day 0, the greater total number of follicles was due to the greater (P < 0.05) number of medium follicles that was associated with less number of small follicles. Although, the number and diameter of corpora lutea (CLs) were not affected by treatment, serum P4 concentration was greater (P < 0.05) for ewes fed maize silage than for those fed Berseem clover. Fecundity and litter size tended to be greater (about 35%; P = 0.132 and 0.085, respectively) in the maize silage fed ewes. In conclusion, feeding Berseem clover throughout seasonal anoestrus disrupted aspects of behavioural oestrus and there was less luteal P4 synthesis and fecundity of ewes.
Collapse
Affiliation(s)
- N M Hashem
- Animal and Fish Production Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt.
| | - K M El-Azrak
- Animal and Fish Production Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
| | - A N M Nour El-Din
- Animal and Fish Production Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
| | - S M Sallam
- Animal and Fish Production Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
| | - T A Taha
- Animal and Fish Production Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
| | - M H Salem
- Animal and Fish Production Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
| |
Collapse
|
17
|
Hormonal concentrations and reproductive performance of Holstein heifers fed Trifolium alexandrinum as a phytoestrogenic roughage. Anim Reprod Sci 2016; 170:121-7. [PMID: 27137835 DOI: 10.1016/j.anireprosci.2016.04.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 04/19/2016] [Accepted: 04/21/2016] [Indexed: 12/12/2022]
Abstract
Effects of phytoestrogen isoflavones in Berseem clover on hormonal balance during early pregnancy and fertility of heifers were studied. Holstein heifers (n=26) were divided into two equal homogenous groups. Heifers in the first group (Clover-fed group) were fed Egyptian clover (Trifolium alexandrinum) as oestrogenic roughage; whereas the heifers in the second group (Silage-fed group) were fed maize silage. Concentrations of four isoflavone aglycones (genistein. Daidzein, biochanin A and formononetein) were determined in the two roughages. Treatment lasted for 20 consecutive weeks (5 months) during which blood samples were collected biweekly for determining the metabolic profile of heifers. Heifers were subjected to oestrous synchronisation using a double prostaglandin F2α (PGF2α) based protocol, 14days apart (week 10 and 12), and were artificially inseminated 12h following detection of overt signs of oestrus. Concentrations of serum oestradiol (E2) and progesterone (P4) on the day of insemination (Day 0) and on Days 7, 14 and 21 post-insemination (early pregnancy) were determined and P4 to E2 ratio was calculated. Clover had greater total isoflavone content than maize silage. The dominant isoflavone detected in Berseem clover was biochanin A, whereas the least was formononetein. Metabolic profile was not affected (P>0.05) by the type of roughage and was in the same trend in both experimental groups. The overall mean concentration of serum E2 was greater (P<0.05) in the clover-fed group than in the silage-fed group. The overall mean concentration of serum P4 was less (P<0.05) in the clover-fed group than in the silage-fed group. During the period of early pregnancy (from Day 7-21 post-insemination) the concentration of serum P4 increased in the silage-fed group, however, no change was observed in the clover-fed group. The overall mean of P4 to E2 ratio was greater (P<0.001) in the silage-fed group compared with that in the clover-fed group. Heifers fed clover had a lesser (P=0.054) conception rate and a greater (P=0.062) percentage of heifers returning to oestrus than silage-fed heifers. In conclusion, isoflavones in Berseem clover apparently disturbed hormonal balance during early pregnancy leading to a reduction in the fertility of heifers.
Collapse
|
18
|
Gou L, Zhang R, Ma L, Zhu F, Dong J, Wang T. Multigene synergism increases the isoflavone and proanthocyanidin contents of Medicago truncatula. PLANT BIOTECHNOLOGY JOURNAL 2016; 14:915-25. [PMID: 26260843 DOI: 10.1111/pbi.12445] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 06/19/2015] [Accepted: 07/03/2015] [Indexed: 05/20/2023]
Abstract
Isoflavones and proanthocyanidins (PAs), which are flavonoid derivatives, possess many health benefits and play important roles in forage-based livestock production. However, the foliage of Medicago species accumulates limited levels of both isoflavones and PAs. In this study, biosynthesis of isoflavone and PA in Medicago truncatula was enhanced via synergy between soya bean isoflavone synthase (IFS1); two upstream enzymes, chalcone synthase (CHS) and chalcone isomerase (CHI); and the endogenous flavanone 3-hydroxylase (F3H). Constitutive expression of GmIFS1 alone resulted in ectopic accumulation of the isoflavone daidzein and large increases in the levels of the isoflavones formononetin, genistein and biochanin A in the leaves. Furthermore, coexpression of GmIFS1 with GmCHS7 and GmCHI1A generally increased the available flux to flavonoid biosynthesis and resulted in elevated isoflavone, flavone and PA contents. In addition, down-regulation of MtF3H combined with coexpression of GmIFS1, GmCHS7 and GmCHI1A led to the highest isoflavone levels (up to 2 μmol/g fresh weight in total). Taken together, our results demonstrate that multigene synergism is a powerful means to enhance the biosynthesis of particular flavonoids and can be more broadly applied to the metabolic engineering of forage species.
Collapse
Affiliation(s)
- Lanming Gou
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Rongxue Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Lei Ma
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Fugui Zhu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jiangli Dong
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Tao Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| |
Collapse
|
19
|
Mahalingam S, Gao L, Gonnering M, Helferich W, Flaws JA. Equol inhibits growth, induces atresia, and inhibits steroidogenesis of mouse antral follicles in vitro. Toxicol Appl Pharmacol 2016; 295:47-55. [PMID: 26876617 DOI: 10.1016/j.taap.2016.02.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 02/08/2016] [Accepted: 02/09/2016] [Indexed: 01/15/2023]
Abstract
Equol is a non-steroidal estrogen metabolite produced by microbial conversion of daidzein, a major soy isoflavone, in the gut of some humans and many animal species. Isoflavones and their metabolites can affect endogenous estradiol production, action, and metabolism, potentially influencing ovarian follicle function. However, no studies have examined the effects of equol on intact ovarian antral follicles, which are responsible for sex steroid synthesis and further development into ovulatory follicles. Thus, the present study tested the hypothesis that equol inhibits antral follicle growth, increases follicle atresia, and inhibits steroidogenesis in the adult mouse ovary. To test this hypothesis, antral follicles isolated from adult CD-1 mice were cultured with vehicle control (dimethyl sulfoxide; DMSO) or equol (600 nM, 6 μM, 36 μM, and 100 μM) for 48 and 96 h. Every 24h, follicle diameters were measured to monitor growth. At 48 and 96 h, the culture medium was subjected to measurement of hormone levels, and the cultured follicles were subjected to gene expression analysis. Additionally, follicles were histologically evaluated for signs of atresia after 96 h of culture. The results indicate that equol (100 μM) inhibited follicle growth, altered the mRNA levels of bcl2-associated X protein and B cell leukemia/lymphoma 2, and induced follicle atresia. Further, equol decreased the levels of estradiol, testosterone, androstenedione, and progesterone, and it decreased mRNA levels of cholesterol side-chain cleavage, steroid 17-α-hydroxalase, and aromatase. Collectively, these data indicate that equol inhibits growth, increases atresia, and inhibits steroidogenesis of cultured mouse antral follicles.
Collapse
Affiliation(s)
- Sharada Mahalingam
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois, 2001 S. Lincoln Ave, Urbana, IL 61802, United States.
| | - Liying Gao
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois, 2001 S. Lincoln Ave, Urbana, IL 61802, United States.
| | - Marni Gonnering
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois, 2001 S. Lincoln Ave, Urbana, IL 61802, United States.
| | - William Helferich
- Department of Food Science and Human Nutrition, University of Illinois, 905 S. Goodwin, Urbana, IL 61801, United States.
| | - Jodi A Flaws
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois, 2001 S. Lincoln Ave, Urbana, IL 61802, United States.
| |
Collapse
|
20
|
Cools S, Van den Broeck W, Vanhaecke L, Heyerick A, Bossaert P, Hostens M, Opsomer G. Feeding soybean meal increases the blood level of isoflavones and reduces the steroidogenic capacity in bovine corpora lutea, without affecting peripheral progesterone concentrations. Anim Reprod Sci 2014; 144:79-89. [PMID: 24439022 DOI: 10.1016/j.anireprosci.2013.12.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 12/09/2013] [Accepted: 12/13/2013] [Indexed: 11/16/2022]
Abstract
Thirty-three Holstein-Friesian cows were followed from 14 days pre partum until the fourth ovulation post partum. Housing conditions and basic ration were identical for all animals. Concentrates were individually supplemented according to the daily milk production level, using two different types of protein rich concentrates: soybean meal and rapeseed meal. Soybean and rapeseed meal are known to be respectively high and low in isoflavones. Cows were randomly divided into three groups and blocked for parity. Group I (n=11) was supplemented with soybean meal and acted as control group. Groups II (n=11) and III (n=11) were respectively supplemented with soybean and rapeseed meal and were subjected to a biopsy sampling of the corpus luteum at day 9 of the first three postpartal estrous cycles. Soybean meal supplementation to lactating dairy cows (1.72 kg on average) induced an increase in the blood concentration of equol, dihydrodaidzein, o-desmethylangolensin in both soy groups and resulted in a reduced area occupied by steroidogenic (P=0.012) and endothelial cells (P=0.0007) in the luteal biopsies. Blood concentrations of equol and glycitein were negatively correlated with the areas occupied by steroidogenic (r=-0.410 with P=0.0002, respectively r=-0.351 with P=0.008) and endothelial cells (r=-0.337 with P=0.01, respectively r=-0.233 with P=0.085) in the 3 first estrous cycles. The latter however did not affect the diestrous peripheral blood progesterone concentration.
Collapse
Affiliation(s)
- S Cools
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - W Van den Broeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - L Vanhaecke
- Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - A Heyerick
- Laboratory of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium.
| | - P Bossaert
- Department of Veterinary Sciences, Campus Drie Eiken, Antwerp University, Universiteitsplein 1, 2610 Wilrijk, Belgium.
| | - M Hostens
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - G Opsomer
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| |
Collapse
|
21
|
Kowalczyk-Zieba I, Boruszewska D, Sinderewicz E, Skarzynski DJ, Woclawek-Potocka I. Influence of Lysophosphatidic Acid on Nitric Oxide-Induced Luteolysis in Steroidogenic Luteal Cells in Cows1. Biol Reprod 2014; 90:17. [DOI: 10.1095/biolreprod.113.113357] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
22
|
Skarzynski D, Szóstek A, Kołomycka A, Botelho M, Zagrajczuk A, Ferreira-Dias G. The modulation of prostaglandin production by coumestrol in the equine endometrium in vitro. J Equine Vet Sci 2014. [DOI: 10.1016/j.jevs.2013.10.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
23
|
Coumestrol and its metabolite in mares' plasma after ingestion of phytoestrogen-rich plants: Potent endocrine disruptors inducing infertility. Theriogenology 2013; 80:684-92. [DOI: 10.1016/j.theriogenology.2013.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 06/03/2013] [Accepted: 06/04/2013] [Indexed: 11/22/2022]
|
24
|
Woclawek-Potocka I, Kowalczyk-Zieba I, Tylingo M, Boruszewska D, Sinderewicz E, Skarzynski DJ. Effects of lysophopatidic acid on tumor necrosis factor α and interferon γ action in the bovine corpus luteum. Mol Cell Endocrinol 2013; 377:103-11. [PMID: 23856004 DOI: 10.1016/j.mce.2013.07.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 07/05/2013] [Accepted: 07/05/2013] [Indexed: 01/01/2023]
Abstract
We examined the effects of LPA on TNFα and IFNγ - induced decrease of P4 synthesis and on the cytokine - induced apoptosis of the cultured luteal cells. In the steroidogenic luteal cells LPA reversed the inhibitory effect of TNFα and IFNγ on P4 synthesis and also inhibited the stimulatory effects of TNFα and IFNγ on the expression of Bax, TNFR1, Fas and FasL as well as caspase 3 activity. These results suggest that TNFα and IFNγ cannot induce apoptosis in the presence of LPA, which orientates the steroidogenic luteal cells towards the survival state. In conclusion our results indicate that LPA supports P4 synthesis and action in the bovine CL.
Collapse
MESH Headings
- Animals
- Apoptosis/drug effects
- Caspase 3/genetics
- Caspase 3/metabolism
- Caspase 8/genetics
- Caspase 8/metabolism
- Cattle
- Cell Separation
- Cells, Cultured
- Corpus Luteum/cytology
- Corpus Luteum/drug effects
- Corpus Luteum/enzymology
- Corpus Luteum/metabolism
- Female
- Gene Expression Regulation/drug effects
- Interferon-gamma/pharmacology
- Lysophospholipids/pharmacology
- Progesterone/biosynthesis
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Receptors, Tumor Necrosis Factor, Type I/metabolism
- Receptors, Tumor Necrosis Factor, Type II/genetics
- Receptors, Tumor Necrosis Factor, Type II/metabolism
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
- Tumor Necrosis Factor-alpha/pharmacology
Collapse
Affiliation(s)
- Izabela Woclawek-Potocka
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland.
| | | | | | | | | | | |
Collapse
|
25
|
Bagheri T, Imanpoor MR, Jafari V, Bennetau-Pelissero C. Reproductive impairment and endocrine disruption in goldfish by feeding diets containing soybean meal. Anim Reprod Sci 2013; 139:136-44. [PMID: 23611471 DOI: 10.1016/j.anireprosci.2013.02.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 02/05/2013] [Accepted: 02/10/2013] [Indexed: 11/30/2022]
Abstract
A long-term feeding experiment was conducted to investigate the inclusion of soybean meal in diets for goldfish (Carassius auratus) on fish reproduction. In the present study, 20 weeks after hatching, goldfish with an initial average weight of 2±0.03g (mean±SD) were divided into 12 groups (three tanks per dietary treatment) and fed 400gkg(-1) crude protein diets. The four experimental diets were as follows: diet 1, fish meal (FM); diet 2, 35% soybean meal (SBM35%); diet 3, 65% soybean meal (SBM65%); diet 4, 100% soybean meal (SBM100%). After feeding with experimental diets, the impact on reproduction was investigated. In both males and females, the plasma testosterone (T) was significantly decreased, while 17β-estradiol (E2) levels were significantly increased. Levels of 17α, hydroxyprogesterone. (17-OH-P) did not differ as a result of soybean meal feeding in either males or females. The average number of eggs spawned and sperm quality were reduced on feeding with soybean inclusion. Histological examination showed impact on oocyte maturation progress and spermatogenesis process in female and male fish, respectively. In addition, feeding goldfish with soybean meal until maturation caused reduction in fertilization and hatching rates in parallel to increasing soybean meal inclusion. The results demonstrated that inclusion of soybean meal might cause sex hormone biosynthesis disruption and reproductive impairments in fish, ultimately decreased fertilization as well as hatching rates in the offspring.
Collapse
Affiliation(s)
- Tahere Bagheri
- Young Researchers Club, Gorgan Branch, Islamic Azad University, Gorgan, Iran & Scientific board, fisheris group, Gonbad university, Gonbad, Iran.
| | | | | | | |
Collapse
|
26
|
Wocławek-Potocka I, Mannelli C, Boruszewska D, Kowalczyk-Zieba I, Waśniewski T, Skarżyński DJ. Diverse effects of phytoestrogens on the reproductive performance: cow as a model. Int J Endocrinol 2013; 2013:650984. [PMID: 23710176 PMCID: PMC3655573 DOI: 10.1155/2013/650984] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 03/04/2013] [Indexed: 12/12/2022] Open
Abstract
Phytoestrogens, polyphenolic compounds derived from plants, are more and more common constituents of human and animal diets. In most of the cases, these chemicals are much less potent than endogenous estrogens but exert their biological effects via similar mechanisms of action. The most common source of phytoestrogen exposure to humans as well as ruminants is soybean-derived foods that are rich in the isoflavones genistein and daidzein being metabolized in the digestive tract to even more potent metabolites-para-ethyl-phenol and equol. Phytoestrogens have recently come into considerable interest due to the increasing information on their adverse effects in human and animal reproduction, increasing the number of people substituting animal proteins with plant-derived proteins. Finally, the soybean becomes the main source of protein in animal fodder because of an absolute prohibition of bone meal use for animal feeding in 1995 in Europe. The review describes how exposure of soybean-derived phytoestrogens can have adverse effects on reproductive performance in female adults.
Collapse
Affiliation(s)
- Izabela Wocławek-Potocka
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Street, 10-747 Olsztyn, Poland
| | - Chiara Mannelli
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Street, 10-747 Olsztyn, Poland
- Department of Life Sciences, Doctoral School in Life Sciences, University of Siena, Miniato via A. Moro 2 St., 53100 Siena, Italy
| | - Dorota Boruszewska
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Street, 10-747 Olsztyn, Poland
| | - Ilona Kowalczyk-Zieba
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Street, 10-747 Olsztyn, Poland
| | - Tomasz Waśniewski
- Department of Gynecology and Obstetrics, Faculty of Medical Sciences, University of Warmia and Masuria, Zolnierska 14 C St., 10-561 Olsztyn, Poland
| | - Dariusz J. Skarżyński
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Street, 10-747 Olsztyn, Poland
- *Dariusz J. Skarżyński:
| |
Collapse
|
27
|
Hashem N, Sallam S. Sexual and ovarian activity of crossbred ewes fed different types of roughage during seasonal anestrus. Small Rumin Res 2012. [DOI: 10.1016/j.smallrumres.2012.04.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
28
|
Bagheri T, Imanpoor MR, Jafari V. Effects of diets containing genistein and diadzein in a long-term study on sex steroid dynamics of goldfish (Carassius auratus). Toxicol Ind Health 2012; 30:132-40. [PMID: 22778114 DOI: 10.1177/0748233712452604] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The effect of long-term exposure of goldfish to dietary genistein and diadzein on the concentrations of plasma sex steroids (testosterone (T), 17β-estradiol (E2)) and the gonadosomatic index (GSI) was assessed. The study was conducted on four groups for a period of 2 years, from the age of 20 weeks to first spawning. Four doses of genistein and diadzein were applied in the feed: genistein: 0 µg/g, diadzein: 0 µg/g (control group); genistein: 24.26 µg/g, diadzein: 21.7 µg/g (diet 1); genistein: 51.55 µg/g, diadzein: 46.13 µg/g (diet 2); and genistein: 75.83 µg/g, diadzein: 67.82 µg/g (diet 3). Throughout the experiment, there were no significant dose- or time-related effects of genistein and diadzein contents on the T level in both sexes. Furthermore, at the highest genistein and diadzein contents, there was an elevating plasma concentration of E2 at all sampling points (p < 0.05) and a time-related effect occurred (p < 0.05). Although the E2 concentrations in the plasma of female, throughout the experiment, were higher than in males, at the last sampling, the plasma concentrations of E2 reduced among females and became lower than that in males. The effects of isoflavone content were found on GSI of females at the fourth and fifth sampling among the treatments. Isoflavone contents also affect GSI of males at the second, fourth and the last sampling. Our findings suggest that overall genistein and diadzein exposure in early life stages can cause alterations in the reproductive organs and influence sex steroidogenesis.
Collapse
Affiliation(s)
- Tahere Bagheri
- Department of Fisheries, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | | | | |
Collapse
|
29
|
KOWALCZYK-ZIEBA I, BORUSZEWSKA D, SAULNIER-BLACHE JS, LOPES DA COSTA L, JANKOWSKA K, SKARZYNSKI DJ, WOCLAWEK-POTOCKA I. Lysophosphatidic Acid Action in the Bovine Corpus Luteum -An In Vitro Study. J Reprod Dev 2012; 58:661-71. [DOI: 10.1262/jrd.2012-060] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Ilona KOWALCZYK-ZIEBA
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Dorota BORUSZEWSKA
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | | | - Luis LOPES DA COSTA
- CIISA, Faculty of Veterinary Medicine, Technical University of Lisbon, Lisbon, Portugal
| | - Katarzyna JANKOWSKA
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Dariusz Jan SKARZYNSKI
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Izabela WOCLAWEK-POTOCKA
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| |
Collapse
|
30
|
Kowalczyk-Zieba I, Woclawek-Potocka I, Piskula MK, Piotrowska-Tomala KK, Boruszewska D, Bah MM, Siemieniuch MJ, Skarzynski DJ. Experimentally induced mastitis and metritis modulate soy bean derived isoflavone biotransformation in diary cows. Theriogenology 2011; 76:1744-55. [PMID: 21890188 DOI: 10.1016/j.theriogenology.2011.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Revised: 06/15/2011] [Accepted: 07/04/2011] [Indexed: 10/17/2022]
Abstract
The present study compared the changes in isoflavone (daidzein and genistein) and their metabolite (equol and para-ethyl-phenol) concentrations in the blood plasma of cows with induced mastitis and metritis after feeding with soy bean. Sixteen cows were divided into four groups: control for mastitis group, cows with induced mastitis group, control for metritis group, and cows with induced metritis group. All cows were fed a single dose of 2.5 kg of soy bean and then blood samples were taken from the jugular vein for 8 h at predetermined intervals. The concentrations of soy bean-derived isoflavones and their active metabolites were measured in the blood plasma on HPLC system. β-Glucuronidase activity in the blood plasma of cows was measured by fluorometric method. In the blood plasma of cows with induced mastitis and metritis, we found considerably higher concentrations and time-dependent increase in isoflavone metabolites (equol and para-ethyl-phenol) with reference to cyclic cows (P < 0.05). Moreover, we noticed significant decrease of genistein in the blood plasma of the cows with induced metritis compared with control cows (P < 0.05). In addition, in the blood plasma of the cows with induced metritis, we found an increase in β-glucuronidase activity compared with control cows (P < 0.05). In conclusion, health status of the females influenced the concentrations of isoflavone metabolites in the blood plasma of the cows. Experimentally induced mastitis and metritis increased isoflavone absorption, biotransformation and metabolism. Therefore, we suggest that cows with induced mastitis and metritis are more exposed to active isoflavone metabolite actions than healthy cows.
Collapse
Affiliation(s)
- I Kowalczyk-Zieba
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Olsztyn, Poland
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Short- and long-term effects of low estrogenic subterranean clover on ewe reproductive performance. Small Rumin Res 2011. [DOI: 10.1016/j.smallrumres.2011.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
32
|
The Effect of Soybean-Derived Phytoestrogens on Concentrations of Plasma Isoflavones, 15-keto-13,14-dihydroprostaglandin F2α and Progesterone in Dairy Cows. ACTA VET BRNO 2011. [DOI: 10.2754/avb201079040525] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The objective of the study was to determine the effect of soybean-derived phytoestrogens and their metabolites on the activity of sex hormones during the oestrous cycle in multiparous lactating dairy cows. The experiment was carried out on 4 multiparous lactating Holstein cows in the form of replicated Latin square in double reversal design. The experiment in the total length of 168 days was divided into 4 periods of 42 days, each consisting of a 21-day preliminary period and a 21-day collecting period. Cows were divided into 2 groups of 2 cows. The control group (C) was fed a diet based on extruded rapeseed cake while the experimental group (S) was fed a diet containing extruded full-fat soya. The intake of total isoflavones was 3297 mg/d in S and 58.0 mg/d in C (P < 0.001). The concentrations of individual isoflavones, it is daidzein, genistein and equol in plasma were significantly higher in the experimental group S (49.3, 78.7 and 218.8 ng/ml, respectively) than in the control group C (13.5, 42.9 and 18.3 ng/ml, respectively, P < 0.001). Plasma concentration of progesterone throughout the oestrous cycle was not influenced by the diet used (P > 0.05). Plasma concentration of prostaglandine PGFM throughout the oestrous cycle in the experimental group (S) tended to be higher (P = 0.095) than in the control group (C). No differences in the length of the oestrous cycle between the cows fed different diets were observed.
Collapse
|
33
|
Dumbrepatil AB, Lee SG, Chung SJ, Lee MG, Park BC, Kim TJ, Woo EJ. Development of a nanoparticle-based FRET sensor for ultrasensitive detection of phytoestrogen compounds. Analyst 2010; 135:2879-86. [PMID: 20877819 DOI: 10.1039/c0an00385a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Phytoestrogens are plant compounds that mimic the actions of endogenous estrogens. The abundance of these chemicals in nature and their potential effects on health require the development of a convenient method to detect phytoestrogens. We have developed a nanoparticle (NP)-conjugated FRET probe based on the human estrogen receptor α (ER) ligand-binding domain (LBD) to detect phytoestrogens. The NP-conjugated FRET probe showed fluorescence signals for genistein, resveratrol and daidzein compounds with Δ ratios of 1.65, 2.60 and 1.37 respectively, which are approximately six times greater compared to individual FRET probes. A significantly higher signal for resveratrol versus genistein and daidzein indicates that the probe can differentiate between antagonistic phytoalexin substances and agonistic isoflavone compounds. NP-conjugated probes demonstrated a wide dynamic range, ranging from 10(-18) to 10(-1) M with EC(50) values of 9.6 × 10(-10), 9.0 × 10(-10) and 9.2 × 10(-10) M for genistein, daidzein and resveratrol respectively, whereas individual probes detected concentrations of 10(-13) to 10(-4) M for phytoestrogens compounds. The time profile revealed that the NP-conjugated probe is stable over 30 h and there is not a significant deviation in the FRET signal at room temperature. These data demonstrate that conjugation of a FRET probe to nanoparticles is able to serve as an effective FRET sensor for monitoring bioactive compounds with significantly increased sensitivity, dynamic range and stability.
Collapse
Affiliation(s)
- Arti B Dumbrepatil
- Korea Research Institute of Biosciences and Biotechnology (KRIBB), 111 Gwahangno, Yuseong-gu, Daejeon, 305-806, Korea
| | | | | | | | | | | | | |
Collapse
|
34
|
Hong HO, Abanto OD, Kim KH, Nam KT, Son JY, Jung WS, Nam IS, Hwang SG. The Effects of Dietary Soybean Fermented with Aspergillus oryzae or Bacillus natto on Egg Production and Egg Lipid Composition in Layer. Korean J Food Sci Anim Resour 2010. [DOI: 10.5851/kosfa.2010.30.4.609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|
35
|
Wang X, Shang L, Wang J, Wu N, Wang S. Effect of phthalate esters on the secretion of prostaglandins (F2alpha and E2) and oxytocin in cultured bovine ovarian and endometrial cells. Domest Anim Endocrinol 2010; 39:131-6. [PMID: 20444570 DOI: 10.1016/j.domaniend.2010.03.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2010] [Revised: 03/21/2010] [Accepted: 03/21/2010] [Indexed: 11/30/2022]
Abstract
The influence of phthalate esters di-2-ethylhexyl phthalate (DEHP) and mono-2-ethylhexyl phthalate (MEHP) on uterine prostaglandin (PGF2alpha and PGE2) and ovarian oxytocin secretion was investigated. Endometrial, granulosa, and luteal cells from cows on days 8-12 of the estrous cycle were treated with DEHP or MEHP (0.1, 1, or 10 ng/mL). We found that DEHP and MEHP stimulated (P < 0.05) secretion of PGF2alpha and inhibited (P < 0.001) secretion of PGE2 from endometrial cells. The ratio of PGF2alpha to PGE2 was markedly altered. The endocrine disrupting chemicals also enhanced secretion of oxytocin (P < 0.05) from ovarian cells. Our results indicated that DEHP and its metabolite MEHP could affect the process of the estrous cycle by impairing secretion of prostaglandin from the uterus and oxytocin from the ovary.
Collapse
Affiliation(s)
- Xin Wang
- Department Gynecology and Obstetrics, Beijing Military Region Main Hospital, Dongcheng District, Beijing 100700, China
| | | | | | | | | |
Collapse
|
36
|
WOCLAWEK-POTOCKA I, KOWALCZYK-ZIEBA I, SKARZYNSKI DJ. Lysophosphatidic Acid Action During Early Pregnancy in the Cow: In Vivo and In Vitro Studies. J Reprod Dev 2010; 56:411-20. [DOI: 10.1262/jrd.09-205k] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Izabela WOCLAWEK-POTOCKA
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences
| | - Ilona KOWALCZYK-ZIEBA
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences
| | - Dariusz Jan SKARZYNSKI
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences
| |
Collapse
|
37
|
Boivin J, Schmidt L. Use of complementary and alternative medicines associated with a 30% lower ongoing pregnancy/live birth rate during 12 months of fertility treatment. Hum Reprod 2009; 24:1626-31. [PMID: 19359338 DOI: 10.1093/humrep/dep077] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND There seems to be little discussion between patient and physician about the use of complementary and alternative medicines (CAMs), perhaps because they are not perceived to have adverse effects on fertility. We therefore compared ongoing pregnancy and live birth rate in spontaneous users and non-users of CAM during a 12-month period of assisted reproduction technique (ART) treatment. Consent was by questionnaire return. METHOD This was a prospective observational cohort study with a 12-month follow-up period, sampling consecutive patients attending five ART clinics in Denmark. N = 728 women about to have ART for the first time completed self-report assessments prior to treatment (Time 1, T1) and at 12-month follow-up (Time 2, T2). Data from treatment records were also available for n = 590. RESULTS About 30.6% (n = 223) of women used CAMs during the observation period. At T2 the ongoing pregnancy and live birth rate was 31.3% lower in CAM users (42.2%) compared with non-users (61.4%). Adjusted odds of pregnancy/live birth remained lower in CAM users versus non-users, odds ratio = 0.467 (95% confidence interval 0.306-0.711) after controlling for prognostic indicators (age, parity, years infertile). CONCLUSIONS Concurrent use of CAM during treatment with ART was associated with a 30% lower pregnancy rate that could not be explained by poor prognosis or life style factors. The mechanisms that could account for this association were discussed. Concurrent CAM use should be monitored during ART. A main limitation was that we could not ascertain which type of CAM was most associated with lower pregnancy rates.
Collapse
Affiliation(s)
- J Boivin
- School of Psychology, Cardiff University, Tower Building, Park Place, Cardiff, Wales CF10 3AT, UK.
| | | |
Collapse
|
38
|
Woclawek-Potocka I, Piskula MK, Bah M, Siemieniuch MJ, Korzekwa A, Brzezicka E, Skarzynski DJ. Concentrations of isoflavones and their metabolites in the blood of pregnant and non-pregnant heifers fed soy bean. J Reprod Dev 2008; 54:358-63. [PMID: 18678989 DOI: 10.1262/jrd.20013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The present study compared the changes in isoflavones (daidzein and genistein) and their metabolite (equol and para-ethyl-phenol) concentrations in the blood plasma of cyclic and pregnant heifers after feeding with soy bean. Twelve healthy heifers were divided into three groups: cyclic heifers (days 8-12 of the estrous cycle; control group; n=4), an early pregnancy group (2 months pregnant; n=4) and a late pregnancy group (8 months pregnant; n=4). All heifers were fed a single dose of 2.5 kg of soy bean and then blood samples were taken from the jugular vein for 8 h at predetermined intervals. The concentrations of soy bean-derived isoflavones and their active metabolites were measured in the blood plasma on an HPLC system. In the blood plasma of the early- and late-pregnant heifers, we found lower concentrations and time-dependent decreases in daidzein and genistein in comparison to cyclic heifers (P<0.05). Moreover, we noticed significant increases of equol and para-ethyl-phenol in the blood plasma of the early-pregnant heifers (P<0.05). In contrast, in the blood plasma of the late-pregnant heifers, we did not find an increase in the isoflavone metabolite concentrations compared with the early-pregnant heifers (P>0.05). In conclusion, physiological status (cyclicity or pregnancy) of the females influenced the concentrations of isoflavone metabolites in the blood plasma of the heifers. The stage of pregnancy affects isoflavone absorption, biotransformation and metabolism differently and results in higher concentrations of active metabolites of isoflavones during early pregnancy in comparison to their lower concentrations during late pregnancy. Therefore, we surmise that cows are more sensitive to active isoflavone metabolite actions during early pregnancy than cyclic heifers and heifers in late pregnancy.
Collapse
Affiliation(s)
- Izabela Woclawek-Potocka
- Department of Reproductive Immunology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | | | | | | | | | | | | |
Collapse
|
39
|
Opalka M, Kugla-Owczarska J, Kaminska B, Puchajda-Skowronska H, Hryniewicka W, Dusza L. Effects of dietary meals containing different levels of phytoestrogens on reproductive function in Bilgoraj ganders. Acta Vet Hung 2008; 56:379-91. [PMID: 18828489 DOI: 10.1556/avet.56.2008.3.11] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of this study was to investigate how long-term feeding of ganders with diets containing different levels of phytoestrogens affects the morphometry of testes, plasma steroid levels, sperm parameters and reproductive performance. Male Bilgoraj geese were fed diets containing grass meal (with low phytoestrogen levels) and those containing alfalfa meal and soybean meal (with higher levels of phytoestrogens). Testes were obtained from ganders at the peak of mating and the ongoing laying period as well as at the beginning of photorefractoriness. The morphometric parameters were measured in frozen testicular sections. Blood was collected monthly from December to June, and plasma testosterone, androstenedione and corticosterone concentrations were determined. During the mating season, semen was collected and its quantity and quality were investigated. In the flocks (ganders with geese) reproductive output was noted. Seasonal changes were observed in the morphology of testes and in plasma testosterone, androstenedione and corticosterone concentrations in ganders. The feeding of ganders with dietary meals containing higher levels of phytoestrogens did not affect the plasma steroid contents or the majority of the morphometric parameters of testes, except for the height of the seminiferous epithelium, which was lowered. Moreover, diets with higher levels of phytoestrogens decreased the volume of ejaculates and the percentage of normal spermatozoa. However, these changes were not reflected in the fertilisation rates.
Collapse
Affiliation(s)
- Marek Opalka
- 1 University of Warmia and Mazury in Olsztyn Department of Animal Physiology Oczapowskiego 1A 10-719 Olsztyn Poland
| | - Justyna Kugla-Owczarska
- 2 University of Warmia and Mazury in Olsztyn Department of Poultry Breeding Oczapowskiego 1A 10-719 Olsztyn Poland
| | - Barbara Kaminska
- 1 University of Warmia and Mazury in Olsztyn Department of Animal Physiology Oczapowskiego 1A 10-719 Olsztyn Poland
| | - Helena Puchajda-Skowronska
- 2 University of Warmia and Mazury in Olsztyn Department of Poultry Breeding Oczapowskiego 1A 10-719 Olsztyn Poland
| | | | - Luiza Dusza
- 1 University of Warmia and Mazury in Olsztyn Department of Animal Physiology Oczapowskiego 1A 10-719 Olsztyn Poland
| |
Collapse
|
40
|
Abstract
Due to their ability to mimic the actions of mammalian estrogens, soy phytoestrogens have been proposed as potential therapeutic agents to aid in preventing postmenopausal bone loss. In vitro, phytoestrogens promote osteoblastogenesis and inhibit osteoclastogenesis. Although a relatively large number of intervention studies have been undertaken in animals and humans, the efficacy of phytoestrogens as bone-protective agents in vivo remains unclear. Differences in the bioactivities of individual phytoestrogens, differences in phytoestrogen metabolism and bioavailability within different study populations, and imprecise reporting of the dose of phytoestrogens administered in intervention studies may have contributed to the disparity in study findings.
Collapse
Affiliation(s)
- Raewyn C Poulsen
- Institute of Food Nutrition and Human Health, Massey University, Palmerston North, New Zealand
| | | |
Collapse
|
41
|
Mi YL, Zhang CQ, Zeng WD, Liu JX, Liu HY. The Isoflavonoid Daidzein Attenuates the Oxidative Damage Induced by Polychlorinated Biphenyls on Cultured Chicken Testicular Cells. Poult Sci 2007; 86:2008-12. [PMID: 17704391 DOI: 10.1093/ps/86.9.2008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The soy isoflavonoid daidzein (DAI) is one of the most abundant phenolic compounds in the human diet and in animal feedstuffs. Daidzein possesses a wide spectrum of physiological and pharmacological functions related to human health. The aim of this study was to evaluate the effect of DAI on oxidative damage induced by a potential carcinogen, polychlorinated biphenyl. Testicular cells were dispersed from 18-d-old chicken embryos and exposed to DAI alone or in combination with a mixture of polychlorinated biphenyls, Aroclor 1254 (A1254), in culture. Oxidative damage was estimated by measuring the lipid peroxidation and superoxide dismutase activities and glutathione content. Results showed that DAI (10 microg/mL) increased germ cell numbers, which were inhibited by cotreatment with the estrogen receptor antagonist tamoxifen at 0.1 microg/mL. Exposure to A1254 (10 microg/mL) reduced superoxide dismutase activity and glutathione content but increased lipid peroxidation significantly. However, simultaneous supplementation with 10 microg/mL of DAI restored these parameters. The above results indicated that DAI may exert weak estrogenic activity, and more important, that DAI may display an antioxidant effect to prevent oxidative damage induced by the oxidant A1254.
Collapse
Affiliation(s)
- Y L Mi
- College of Animal Sciences, Zhejiang University, Hangzhou 310029, China
| | | | | | | | | |
Collapse
|
42
|
Opalka DM, Kaminska B, Piskula MK, Puchajda-Skowronska H, Dusza L. Effects of phytoestrogens on testosterone secretion by Leydig cells from Biłgoraj ganders (Anser anser). Br Poult Sci 2007; 47:237-45. [PMID: 16641036 DOI: 10.1080/00071660600612324] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The aim of this study was to examine ganders at different stages of the reproductive season and the effect of: (1) diets with high phytoestrogen content and (2) in vitro phytoestrogen treatment on testosterone secretion by isolated Leydig cells. Thirty-six male Biłgoraj geese were fed control diets with low phytoestrogen content (containing grass meal) and diets with high phytoestrogens (containing alfalfa meal and soy). Testes were obtained from both groups of ganders at three different times of the breeding season: peak of reproductive activity (March), second half of reproductive activity (May) and beginning of photorefractoriness (July). Isolated Leydig cells were incubated with LH as well as genistein, daidzein, equol and coumestrol and the concentration of testosterone in the medium was determined by radioimmunoassay. The mean weight of testes from ganders in May and July decreased relative to their weights in March, but no significant differences among experimental groups were noted. No differences were observed in basal and LH-stimulated testosterone secretion by Leydig cells of ganders fed the control diets and the diets with higher phytoestrogen content. In July, LH did not stimulate testosterone secretion in either group. In vitro treatment with genistein, daidzein and equol (5 and 50 microM) inhibited basal and LH-stimulated testosterone production by Leydig cells from both groups. Coumestrol (5 and 50 microM) inhibited basal testosterone secretion only in March in the control group. Dietary exposure to phytoestrogens had a slight effect on in vitro testicular secretion in ganders. In vitro treatment with phytoestrogen inhibited testosterone production by Leydig cells. Genistein showed the strongest effect and coumestrol had the weakest influence on testicular secretion.
Collapse
Affiliation(s)
- Dr M Opalka
- Department of Animal Physiology, University of Warmia and Mazury in Olsztyn, Poland.
| | | | | | | | | |
Collapse
|
43
|
Rozman KK, Bhatia J, Calafat AM, Chambers C, Culty M, Etzel RA, Flaws JA, Hansen DK, Hoyer PB, Jeffery EH, Kesner JS, Marty S, Thomas JA, Umbach D. NTP-CERHR expert panel report on the reproductive and developmental toxicity of soy formula. ACTA ACUST UNITED AC 2006; 77:280-397. [PMID: 16998908 PMCID: PMC2266894 DOI: 10.1002/bdrb.20086] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Karl K Rozman
- Department of Pharmacology and Toxicology, University of Kansas Medical Center, Kansas City, KS, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Woclawek-Potocka I, Borkowski K, Korzekwa A, Okuda K, Skarzynski DJ. Phyto- and endogenous estrogens differently activate intracellular calcium ion mobilization in bovine endometrial cells. J Reprod Dev 2006; 52:731-40. [PMID: 16963825 DOI: 10.1262/jrd.18057] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The main purpose of this study was to check whether phyto- and endogenous estrogens influence calcium ion mobilization [Ca(2+)](i) in bovine endometrial cells and whether this action is connected with biological effects i.e. prostaglandin (PG)F(2alpha) production. In our study we used two calcium measurement methods by comparing the microscopic method with widely used quantitative - spectrofluorometric method of [Ca(2+)](i) measurement. We also wanted to confirm whether visualization of calcium ion [Ca(2+)](i) in cells using microscopic method supported by micro image analysis (Micro Image Olympus system) reflects real, qualitative changes in the ion concentration. In both methods a cell-permeable form of fluorescent [Ca(2+)](i) indicator Fura-2 was used. Cultured bovine endometrial epithelial and stromal cells influenced by phorbol-2-myristate-13-acetate (PMA; positive control), estradiol 17-beta (E(2); endogenous estrogen) and active metabolites of phytoestrogens (environmental estrogens) were used as a model to study PGF(2alpha) secretion and [Ca(2+)](i) mobilization in the cells. Equol and para-ethyl-phenol in doses of 10(-8)-10(-6) M increased PGF(2alpha) concentration both in epithelial and stromal cells (P<0.05). In both methods, equol and para-ethyl-phenol did not cause intracellular [Ca(2+)](i) mobilization in epithelial and stromal cells (P>0.05). Both methods revealed that only E(2) and PMA induced intracellular [Ca(2+)](i) mobilization in epithelial and stromal cells (P<0.05). The results of both methods were highly correlated (P<0.001; r=0.82 for epithelial cells and r=0.89 for stromal cells). In conclusion, both methods gave approximately the same results and showed that phytoestrogens, in contrast to PMA and E(2), did not cause intracellular [Ca(2+)](i) mobilization in endometrial cells. The obtained results proved that the [Ca(2+)](i) visualization method supported by micro image analysis can produce similar results to the spectrofluorometric method.
Collapse
Affiliation(s)
- Izabela Woclawek-Potocka
- Department of Reproductive Immunology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn
| | | | | | | | | |
Collapse
|
45
|
Woclawek-Potocka I, Bober A, Korzekwa A, Okuda K, Skarzynski DJ. Equol and para-ethyl-phenol stimulate prostaglandin F(2alpha) secretion in bovine corpus luteum: intracellular mechanisms of action. Prostaglandins Other Lipid Mediat 2006; 79:287-97. [PMID: 16647642 DOI: 10.1016/j.prostaglandins.2006.03.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2006] [Revised: 03/03/2006] [Accepted: 03/06/2006] [Indexed: 01/02/2023]
Abstract
Corpus luteum (CL) is a reproductive gland that plays a crucial endocrine role in the regulation of the estrous cycle, fertility, and pregnancy in cattle. The main function of CL is secretion of progesterone (P4), an important hormone for establishment a successful pregnancy, whereas prostaglandin F(2alpha) (PGF(2alpha)), 17beta-estradiol (E(2)) and testosterone (T) are implicated in the regulation of luteolysis. It has been shown that phytoestrogens may disrupt numerous reproductive functions on several levels of regulation and via different intracellular mechanisms. Using a cell-culture system of steroidogenic cells of the bovine CL, we determined effects of active phytoestrogen metabolites (equol and para-ethyl-phenol) on PGF(2alpha), P4, and T synthesis in steroidogenic CL cells. Moreover, we examined the intracellular mechanisms of phytoestrogen metabolite actions. Phytoestrogen metabolites did not affect P4 production in steroidogenic CL cells. However, PGF(2alpha) and T were significantly stimulated by metabolites of phytoestrogens in the bovine steroidogenic CL cells. To study the intracellular mechanism of endogenous E(2) and phytoestrogen metabolites action, steroidogenic cells were preincubated with a phospholipase C inhibitor (U73122), a protein kinase C inhibitor (staurosporine), an estrogen receptor antagonist (ICI) and a transcription inhibitor (actinomycin D) for 0.5h, and then stimulated with para-ethyl-phenol, equol or E(2). Only U73122 and staurosporine totally reduced the stimulatory effect of E(2) on PGF(2alpha) production by the cells. ICI and actinomycin D only partially reduced E(2) action on CL cells. In contrast, the stimulatory effect of phytoestrogen metabolites was totally inhibited by ICI and actinomycin D. Moreover, in contrast to E(2) action, phytoestrogen metabolites did not cause intracellular calcium mobilization in the cells. The present study demonstrated that phytoestrogen metabolites stimulate PGF(2alpha) secretion in steroidogenic cells of the bovine CL via the estrogen receptor-dependent, genomic pathway.
Collapse
Affiliation(s)
- Izabela Woclawek-Potocka
- Department of Reproductive Immunology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | | | | | | | | |
Collapse
|
46
|
Piotrowska KK, Woclawek-Potocka I, Bah MM, Piskula MK, Pilawski W, Bober A, Skarzynski DJ. Phytoestrogens and their metabolites inhibit the sensitivity of the bovine corpus luteum to luteotropic factors. J Reprod Dev 2006; 52:33-41. [PMID: 16276041 DOI: 10.1262/jrd.17054] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was to examine whether active metabolites of phytoestrogens (equol and para-ethyl-phenol) inhibit sensitivity of bovine corpus luteum (CL) to luteinizing hormone (LH) and to auto/paracrine luteotropic factors (prostaglandin E2-PGE2 and prostaglandin F(2alpha)-PGF(2alpha)), and whether they influence pulsatile progesterone (P4) secretion by the bovine CL. In in vivo experiments, high levels of equol and para-ethyl-phenol were found in plasma and in the CL tissue of heifers and cows fed a soy bean diet (2.5 kg/animal/day), along with lower concentrations of P4 (P < 0.05). Both Prostaglandins (PG) and LH strongly stimulated P4 secretion in cultured pieces of CL that were collected from cows fed a standard diet (P < 0.01). There was no effect of PGs and LH on P4 stimulation in CLs obtained from cows fed a diet rich in soy bean. Finally, we examined whether active metabolites of phytoestrogens participated in regulation of pulsatile P4 secretion and LH-stimulated P4 secretion in vitro using a microdialysis system. Equol and para-ethyl-phenol had no effect on basic and pulsatile P4 secretion in CLs during 240 min of perfusion when compared to the control (P < 0.05). However, they inhibited LH-stimulated P4 secretion (P < 0.05). Phytoestrogens and their metabolites may disrupt CL function by inhibiting PG- and LH-stimulated P4 secretion.
Collapse
Affiliation(s)
- Katarzyna K Piotrowska
- Department of Reproductive Immunology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | | | | | | | | | | | | |
Collapse
|
47
|
Woclawek-Potocka I, Okuda K, Acosta TJ, Korzekwa A, Pilawski W, Skarzynski DJ. Phytoestrogen metabolites are much more active than phytoestrogens themselves in increasing prostaglandin F(2alpha) synthesis via prostaglanin F(2alpha) synthase-like 2 stimulation in bovine endometrium. Prostaglandins Other Lipid Mediat 2005; 78:202-17. [PMID: 16303617 DOI: 10.1016/j.prostaglandins.2005.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2005] [Revised: 08/12/2005] [Accepted: 08/12/2005] [Indexed: 10/25/2022]
Abstract
Phytoestrogens have recently been suggested to be the cause of infertility by stimulating luteolytic prostaglandin (PG) F(2alpha) secretion from endometrium in cattle. The purpose of this study was to examine the enzymatic and molecular mechanisms involved in the preferential induction of PGF(2alpha) synthesis by phytoestrogens, and whether phytoestrogens influence endometrial cell viability. Cultured bovine endometrial epithelial and stromal cells were exposed to phytoestrogens (daidzein and genistein) and their metabolites (equol and p-ethyl phenol) for 24h. Prostaglandin F(2alpha) and PGE2 were stimulated by phytoestrogens in both stromal and epithelial cells, with a preference for PGF(2alpha) synthesis in epithelial cells (P<0.001). Although RT-PCR and Western Blot analyses did not reveal the influence of phytoestrogens on either gene expression or protein level of cyclooxygenase-2 (COX-2) and PGE2 synthase (PGES) in stromal and epithelial cells (P>0.05), the stimulative effects of equol and p-ethyl phenol on PGF(2alpha) synthase-like 2 (PGFSL2) gene expression and protein level were observed only in epithelial cells (P<0.05). The same compounds did not affect PGFSL2 gene expression and protein in stromal cells (P>0.05). Exposure to phytoestrogens and their metabolites decreased cell viability in both stromal and epithelial cells. Stromal cell viability decreased to 50% of the control and was more evident than that in epithelial cells (P<0.001). The overall results suggest that infertility in cattle, caused by phytoestrogen-dependent preferential stimulation of luteolytic PGF(2alpha) synthesis, is caused by increasing PGFSL2 in epithelial cells, and by decreasing stromal cell viability, which are the main source of luteotropic PGE2 production.
Collapse
Affiliation(s)
- I Woclawek-Potocka
- Department of Reproductive Immunology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | | | | | | | | | | |
Collapse
|
48
|
Woclawek-Potocka I, Acosta TJ, Korzekwa A, Bah MM, Shibaya M, Okuda K, Skarzynski DJ. Phytoestrogens modulate prostaglandin production in bovine endometrium: cell type specificity and intracellular mechanisms. Exp Biol Med (Maywood) 2005; 230:326-33. [PMID: 15855299 DOI: 10.1177/153537020523000506] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Prostaglandins (PGs) are known to modulate the proper cyclicity of bovine reproductive organs. The main luteolytic agent in ruminants is PGF2alpha, whereas PGE2 has luteotropic actions. Estradiol 17beta (E2) regulates uterus function by influencing PG synthesis. Phytoestrogens structurally resemble E2 and possess estrogenic activity; therefore, they may mimic the effects of E2 on PG synthesis and influence the reproductive system. Using a cell-culture system of bovine epithelial and stromal cells, we determined cell-specific effects of phytoestrogens (i.e., daidzein, genistein), their metabolites (i.e., equol and para-ethyl-phenol, respectively), and E2 on PGF2alpha and PGE2 synthesis and examined the intracellular mechanisms of their actions. Both PGs produced by stromal and epithelial cells were significantly stimulated by phytoestrogens and their metabolites. However, PGF2alpha synthesis by both kinds of cells was greater stimulated than PGE2 synthesis. Moreover, epithelial cells treated with phytoestrogens synthesized more PGF2alpha than stromal cells, increasing the PGF2alpha to PGE2 ratio. The epithelial and stromal cells were preincubated with an estrogen-receptor (ER) antagonist (i.e., ICI), a translation inhibitor (i.e., actinomycin D), a protein kinase A inhibitor (i.e., staurosporin), and a phospholipase C inhibitor (i.e., U73122) for 0.5 hrs and then stimulated with equol, para-ethyl-phenol, or E2. Although the action of E2 on PGF2alpha synthesis was blocked by all reagents, the stimulatory effect of phytoestrogens was blocked only by ICI and actinomycin D in both cell types. Moreover, in contrast to E2 action, phytoestrogens did not cause intracellular calcium mobilization in either epithelial or stromal cells. Phytoestrogens stimulate both PGF2alpha and PGE2 in both cell types of bovine endometrium via an ER-dependent genomic pathway. However, because phytoestrogens preferentially stimulated PGF2alpha synthesis in epithelial cells of bovine endometrium, they may disrupt uterus function by altering the PGF2alpha to PGE2 ratio.
Collapse
Affiliation(s)
- Izabela Woclawek-Potocka
- Department of Reproductive Immunology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | | | | | | | | | | | | |
Collapse
|