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Abiri B, Amini S, Hejazi M, Hosseinpanah F, Zarghi A, Abbaspour F, Valizadeh M. Tea's anti-obesity properties, cardiometabolic health-promoting potentials, bioactive compounds, and adverse effects: A review focusing on white and green teas. Food Sci Nutr 2023; 11:5818-5836. [PMID: 37823174 PMCID: PMC10563719 DOI: 10.1002/fsn3.3595] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/02/2023] [Accepted: 07/22/2023] [Indexed: 10/13/2023] Open
Abstract
Tea is one of the most commonly consumed beverages in the world. Morocco, Japan, and China have consumed green tea for centuries. White tea, which is a variety of green teas, is very popular in China and is highly revered for its taste. Presently, both teas are consumed in other countries around the world, even as functional ingredients, and novel research is constantly being conducted in these areas. We provide an update on the health benefits of white and green teas in this review, based on recent research done to present. After a general introduction, we focused on tea's anti-obesity and human health-promoting potential, adverse effects, and new approaches to tea and its bioactive compounds. It has been found that the health benefits of tea are due to its bioactive components, mainly phenolic compounds. Of these, catechins are the most abundant. This beverage (or its extracts) has potential anti-inflammatory and antioxidant properties, which could contribute to body weight control and the improvement of several chronic diseases. However, some studies have mentioned the possibility of toxic effects; therefore, reducing tea consumption is a good idea, especially during the last trimester of pregnancy. Additionally, new evidence will provide insight into the possible effects of tea on the human gut microbiota, and even on the viruses responsible for SARS-CoV-2. A beverage such as this may favor beneficial gut microbes, which may have important implications due to the influence of gut microbiota on human health.
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Affiliation(s)
- Behnaz Abiri
- Obesity Research Center, Research Institute for Endocrine SciencesShahid Beheshti University of Medical SciencesTehranIran
| | - Shirin Amini
- Department of NutritionShoushtar Faculty of Medical SciencesShoushtarIran
| | - Mahdi Hejazi
- Department of Nutrition, School of Public HealthIran University of Medical SciencesTehranIran
| | - Farhad Hosseinpanah
- Obesity Research Center, Research Institute for Endocrine SciencesShahid Beheshti University of Medical SciencesTehranIran
| | - Afshin Zarghi
- Department of Pharmaceutical Chemistry, School of PharmacyShahid Beheshti University of Medical SciencesTehranIran
| | - Faeze Abbaspour
- Obesity Research Center, Research Institute for Endocrine SciencesShahid Beheshti University of Medical SciencesTehranIran
| | - Majid Valizadeh
- Obesity Research Center, Research Institute for Endocrine SciencesShahid Beheshti University of Medical SciencesTehranIran
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Hinojosa-Nogueira D, Pérez-Burillo S, Pastoriza de la Cueva S, Rufián-Henares JÁ. Green and white teas as health-promoting foods. Food Funct 2021; 12:3799-3819. [PMID: 33977999 DOI: 10.1039/d1fo00261a] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Tea is one of the most consumed beverages around the world and as such, it is constantly the object of novel research. This review focuses on the research performed during the last five years to provide an updated view of the current position of tea regarding human health. According to most authors, tea health benefits can be traced back to its bioactive components, mostly phenolic compounds. Among them, catechins are the most abundant. Tea has an important antioxidant capacity and anti-inflammatory properties, which make this beverage (or its extracts) a potential aid in the fight against several chronic diseases. On the other hand, some studies report the possibility of toxic effects and it is advisable to reduce tea consumption, such as in the last trimester of pregnancy. Additionally, new technologies are increasing researchers' possibilities to study the effect of tea on human gut microbiota and even against SARS CoV-2. This beverage favours some beneficial gut microbes, which could have important repercussions due to the influence of gut microbiota on human health.
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Affiliation(s)
- Daniel Hinojosa-Nogueira
- Departamento de Nutrición y Bromatología, Instituo de Nutrición Y Tecnología de los Alimentos, Centro de Investigación BIomédica, Universidad de Granada, Granada, Spain.
| | - Sergio Pérez-Burillo
- Departamento de Nutrición y Bromatología, Instituo de Nutrición Y Tecnología de los Alimentos, Centro de Investigación BIomédica, Universidad de Granada, Granada, Spain. and Department of Biochemistry and Molecular Biology, Boonshoft School of Medicine, Wright State University, Dayton, OH, USA
| | - Silvia Pastoriza de la Cueva
- Departamento de Nutrición y Bromatología, Instituo de Nutrición Y Tecnología de los Alimentos, Centro de Investigación BIomédica, Universidad de Granada, Granada, Spain.
| | - José Ángel Rufián-Henares
- Departamento de Nutrición y Bromatología, Instituo de Nutrición Y Tecnología de los Alimentos, Centro de Investigación BIomédica, Universidad de Granada, Granada, Spain. and Instituto de Investigación Biosanitaria ibs.GRANADA, Universidad de Granada, Granada, Spain
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The Concentration of Selected Heavy Metals in Muscles, Liver and Kidneys of Pigs Fed Standard Diets and Diets Containing 60% of New Rye Varieties. Animals (Basel) 2021; 11:ani11051377. [PMID: 34066221 PMCID: PMC8150969 DOI: 10.3390/ani11051377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/01/2021] [Accepted: 05/11/2021] [Indexed: 11/21/2022] Open
Abstract
Simple Summary Modern varieties of cereal grains commonly cultivated in Europe are considered good alternative energy sources that can be used as partial replacements for barley and wheat, which are commonly used as primary energy sources in pig feed. In Central Europe, rye deserves special consideration as it can be cultivated on low-fertility soils with a very low environmental impact among cereals. The objective of the present study was to evaluate the effect of partial substitution of wheat and barley with maize or modern rye varieties (population and hybrid) on concentration of selected heavy metals in feed offered to pigs and in pig muscles, liver and kidneys at slaughter. Abstract The carry-over of heavy metals from feed to muscles is generally low if animals are fed with a standard diet containing amounts below the maximum permissible levels. However, prolonged exposure to heavy metals can lead to their accumulation in some organs like muscles, liver, and kidneys. This paves the way for human health risks related to the consumption of products of animal-origin. Thus, using feed mixtures with a low level of heavy metals in pig production will contribute to increasing public health and safety and is of environmental concern. The study aimed to assess the impact of the level of some heavy metals (Cd, Pb, Hg, Cu, Zn, Fe and Mn) in standard (control) feed mixtures and in alternative feed mixtures based on maize or new rye varieties (population and hybrid) on the heavy metal concentration in muscles, liver and kidney of fattened pigs at slaughter. While some differences between heavy metals content in examined tissue samples from experimental groups were observed, all of them were in the range of allowable levels according to European Community rules. In conclusion, new rye varieties, especially the hybrid variety, could be an alternative source of cereal grains for pig nutrition.
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Tomaszewska E, Burmańczuk N, Dobrowolski P, Świątkiewicz M, Donaldson J, Burmańczuk A, Mielnik-Błaszczak M, Kuc D, Milewski S, Muszyński S. The Protective Role of Alpha-Ketoglutaric Acid on the Growth and Bone Development of Experimentally Induced Perinatal Growth-Retarded Piglets. Animals (Basel) 2021; 11:E137. [PMID: 33435211 PMCID: PMC7826854 DOI: 10.3390/ani11010137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 01/01/2023] Open
Abstract
The effect of alpha-ketoglutaric acid (AKG) supplementation to experimentally-induced, perinatal growth-retarded piglets was examined. Sows were treated with a synthetic glucocorticoid (Gc) during the last 25 days of pregnancy, and after the birth, piglets were randomly divided into three groups depending on the treatment. The Gc/Gc + AKG and Gc/AKG groups born by Gc-treated sows after the birth were treated with Gc or Gc + AKG for 35 days. Significantly lower serum growth hormone, IGF-I, osteocalcin, leptin, and cortisol concentrations were observed in the Gc/Gc + AKG group, while the bone alkaline phosphatase activity was significantly higher. Serum insulin concentration was higher in the control group. Serum alanine, lysine, histidine, and tryptophan concentrations were higher in the Gc/Gc + AKG and Gc/AKG groups. The perinatal action of Gc significantly affects histomorphometry of articular cartilage and trabecular bone and bone mechanics. The results clearly showed that dietary AKG had positive effects with regards to the profile of free amino acids. Taking into account the function of AKG as an energy donor and stimulator of collagen synthesis, it can be concluded that the anabolic role of AKG may be the main mechanism responsible for its protective effect against the GC-induced perinatal intensified catabolic state.
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Affiliation(s)
- Ewa Tomaszewska
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka St. 12, 20-950 Lublin, Poland;
| | - Natalia Burmańczuk
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka St. 12, 20-950 Lublin, Poland;
| | - Piotr Dobrowolski
- Department of Functional Anatomy and Cytobiology, Faculty of Biology and Biotechnology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland;
| | - Małgorzata Świątkiewicz
- Department of Animal Nutrition and Feed Science, National Research Institute of Animal Production, Krakowska St. 1, 32-083 Balice, Poland;
| | - Janine Donaldson
- Faculty of Health Sciences, School of Physiology, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa;
| | - Artur Burmańczuk
- Faculty of Veterinary Medicine, Institute of Preclinical Veterinary Sciences, University of Life Sciences in Lublin, Akademicka St. 12, 20-950 Lublin, Poland;
| | - Maria Mielnik-Błaszczak
- Department of Developmental Dentistry, Medical University of Lublin, 7 Karmelicka St., 20-081 Lublin, Poland; (M.M.-B.); (D.K.)
| | - Damian Kuc
- Department of Developmental Dentistry, Medical University of Lublin, 7 Karmelicka St., 20-081 Lublin, Poland; (M.M.-B.); (D.K.)
| | - Szymon Milewski
- Department of Biophysics, Faculty of Environmental Biology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland; (S.M.); (S.M.)
| | - Siemowit Muszyński
- Department of Biophysics, Faculty of Environmental Biology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland; (S.M.); (S.M.)
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Acrylamide-Induced Prenatal Programming of Bone Structure in Mammal Model. ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2020-0044] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
Acrylamide (AA) is a chemical substance with a potentially carcinogenic effect. Its presence in food or animal food arises from its thermal processing. The experiment was conducted to evaluate the effect of AA exposure (3.0 mg/kg. b.w./day) of pregnant dams during the second half of the pregnancy on bone development in offspring. As an model animal, guinea pig was used. While term body weight of newborns was not influenced by maternal AA treatment, shorter bones with reduced bone diaphysis cross-sectional area were observed in experimental group. Numerous negative, offspring sex-dependent effects of maternal AA exposure were observed in femoral epiphysis and metaphysis as well as the articular and growth plate cartilages. These effects resulted from the AA-induced alterations in bone metabolism, as indicated by the changes in the expression of numerous proteins involved in bone development: receptor activator of nuclear factor kappa-Β ligand (RANKL), tissue inhibitor of metalloproteinases 2 (TIMP-2), bone morphogenetic protein 2 (BMP-2), vascular endothelial growth factor (VEGF), and cartilage oligomeric matrix protein (COMP), all of whose expression was measured as well as distribution of immature collagen fibres was determined. Based on the results, it can be concluded that the exposure of pregnant dams to AA negatively affected the structure of compact bone in bone diaphysis, microarchitecture of trabecular bone in metaphysis and epiphysis as well as the structure of the articular and growth plate cartilages in their offspring. The AA-induced bone impairment increased osteoclast differentiation, as observed through the change in the RANKL/OPG ratio, which in turn inhibited osteoblast function by decreasing the expression of other proteins. The data of the present study suggests that maternal AA exposure can result in insufficient bone gain and even bone loss after the birth.
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Yıldırım M, Saral S, Mercantepe T, İskender H, Tümkaya L, Atak M, Taşçı F. White Tea Reduced Bone Loss by Suppressing the TRAP/CTX Pathway in Ovariectomy-Induced Osteoporosis Model Rats. Cells Tissues Organs 2020; 209:64-74. [DOI: 10.1159/000507791] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/08/2020] [Indexed: 11/19/2022] Open
Abstract
Osteoporosis is an important skeletal disease characterized by bone weakness and high risk of fracture in postmenopausal women. Tea consumption is known to play an important role in the prevention or alleviation of osteoporosis. However, the therapeutic effects of aqueous extracts of white tea (WT) have not been evaluated in osteoporosis rat models. The aim of this study was to investigate the potential anti-osteoporotic role of WT in ovariectomized (OVX) rats. WT was given orally at 0.5% w/v doses for 12 weeks in OVX rats. Biochemical parameters in blood samples, bone tartrate-resistant acid phosphatase (TRAP), C-terminal telopeptide of type 1 collagen (CTX) and estradiol levels were evaluated. Bone mineral density and bone mineral content values were measured in the left femur. In addition to histopathological examination, osteolcalcin, osteopontin and TUNEL levels were determined. OVX group data demonstrated that bone loss occurred by thinning of the metaphyseal growth plates of the femur. Similarly, the levels of TRAP and CTX, markers of osteoclastic activity, were found to be high concurrently with a decrease in femoral bone mineral density. In addition, increased osteolcalcin and osteopontin levels were present in the metaphyseal growth zones. On the other hand, while TRAP and CTX levels were suppressed in the OVX-WT group, bone mineral content increased. In addition, TUNEL, osteocalcin and osteopontin positivity decreased in the right femoral metaphysis growth zones, proliferating zone and resting zone cells. These results showed that chronic WT consumption has a protective effect by reducing bone resorption in OVX-induced osteoporotic rats.
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Tomaszewska E, Knaga S, Dobrowolski P, Lamorski K, Jabłoński M, Tomczyk-Warunek A, Jard Kadhim M, Hułas-Stasiak M, Borsuk G, Muszyński S. The effect of bee pollen on bone biomechanical strength and trabecular bone histomorphometry in tibia of young Japanese quail (Coturnix japonica). PLoS One 2020; 15:e0230240. [PMID: 32187215 PMCID: PMC7080246 DOI: 10.1371/journal.pone.0230240] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 02/26/2020] [Indexed: 12/28/2022] Open
Abstract
It has been demonstrated in numerous studies that bee pollen supplementation shows numerous positive effects on health. However, its impact on bones is largely unknown. The purpose of this study was to investigate the effect of bee pollen supplementation on the tibia biomechanical properties and bone morphometric measures using Japanese quail as an animal model. The experiment was arranged in a 2x2x2 factorial design, with sex, quail line (meat-type or egg-lying type), and bee pollen inclusion (0 or 10 g/kg of feed) as factors. The quails were one-day-old at the beginning of the experiment, they were euthanized after 42 days. Our study showed for the first time unfavorable effects of bee pollen on bones properties. Bee pollen supplementation negatively affected bone structure, irrespective of quails’ sex or line type. Bone length (P < 0.001), weight (P < 0.01), and mean relative wall thickness (P < 0.01) and mineralization (P < 0.05) were reduced by bee pollen treatment. For female quails, irrespective of line type, the decrease of yield load (P < 0.001), ultimate load (P < 0.01), yield stress (P < 0.001) and ultimate stress (P < 0.05) was noted. Analysis of growth plate in bone metaphysis showed that bee pollen supplementation slowed the process of bone maturation irrespective of sex (P < 0.05). On contrary, dietary bee pollen positively affected bone homeostasis of trabecular bone in bone metaphysis as bone mineral density increased in experimental groups (P < 0.05). In males, this was the result of the increase of trabecular thickness (P < 0.01), in females due to the reduction of trabecular space (P < 0.001). In conclusion, our results demonstrate that bee pollen (1.0%, 10 g/kg of feed) supplementation caused significant negative effects on the mechanical endurance of the tibia of quails, while showed beneficial effects on trabecular bone histomorphometry.
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Affiliation(s)
- Ewa Tomaszewska
- Department of Animal Physiology, University of Life Sciences in Lublin, Lublin, Poland
| | - Sebastian Knaga
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, Lublin, Poland
| | - Piotr Dobrowolski
- Department of Comparative Anatomy and Anthropology, Maria Curie-Skłodowska University, Lublin, Poland
| | - Krzysztof Lamorski
- Bohdan Dobrzański Institute of Agrophysics of the Polish Academy of Sciences, Lublin, Poland
| | - Mirosław Jabłoński
- Chair and Department of Rehabilitation and Orthopaedics, Medical University in Lublin, Lublin, Poland
| | - Agnieszka Tomczyk-Warunek
- Chair and Department of Rehabilitation and Orthopaedics, Medical University in Lublin, Lublin, Poland
| | - Mohammed Jard Kadhim
- Department of Animal Production Techniques, Al- Furat Al- Awsat Technical University, Babylon, Iraq
| | - Monika Hułas-Stasiak
- Department of Comparative Anatomy and Anthropology, Maria Curie-Skłodowska University, Lublin, Poland
| | - Grzegorz Borsuk
- Institute of Biological Basis of Animal Production, University of Life Sciences in Lublin, Lublin, Poland
| | - Siemowit Muszyński
- Department of Biophysics, University of Life Sciences in Lublin, Lublin, Poland
- * E-mail:
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Muszyński S, Dobrowolski P, Kasperek K, Knaga S, Kwiecień M, Donaldson J, Kutyła M, Kapica M, Tomaszewska E. Effects of Yeast ( Saccharomyces Cerevisiae) Probiotics Supplementation on Bone Quality Characteristics in Young Japanese Quail ( Coturnix Japonica): The Role of Sex on the Action of the Gut-Bone Axis. Animals (Basel) 2020; 10:ani10030440. [PMID: 32150981 PMCID: PMC7142894 DOI: 10.3390/ani10030440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 12/12/2022] Open
Abstract
Simple Summary The gastrointestinal tract; as an important mediator of nutrients and elements; regulates bone health. In this study, we examined the effect of supplementation with yeast Saccharomyces cerevisiae on bone characteristics in young Japanese quails. We found that yeast probiotics, through their action on the gut-bone axis, have a positive effect on the structure of articular cartilage and microarchitecture of trabecular bone in young female quails. These data could provide useful information for further research into the supplementation with yeast probiotics aimed to reduce the risk bone fractures during the egg-laying period Abstract The aim of the study was to investigate the changes in bone geometry, histological structure, and selected mechanical characteristics in young male and female Japanese quails supplemented with Saccharomyces cerevisiae. Quails were fed a basal diet containing no yeast or a basal diet supplemented with 1.5% (15 g per 1 kg of diet) of inactive S. cerevisiae, for a period of 42 days. S. cerevisiae inclusion had no effect on bone weight, length, and density, diaphysis geometry (cross-sectional area, wall thickness, moment of inertia) or on the mechanical strength (yield load, ultimate load, stiffness, Young’s modulus, yield stress, ultimate stress). Yeast supplementation improved the morphology of the articular cartilage both in male and female quails, as the total thickness of the articular cartilage was significantly increased. In trabecular bone, an increase in real bone volume and trabecular thickness was observed in females supplemented with S. cerevisiae, while in males the increase in trabecular number was accompanied by a reduction in trabecular thickness. The results of the present study demonstrate that S. cerevisiae, through a sex-dependent action on the gut-bone axis, improved the structure of articular cartilage and microarchitecture of trabecular bone. The positive effects of S. cerevisiae supplementation were more evident in female quails.
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Affiliation(s)
- Siemowit Muszyński
- Department of Biophysics, Faculty of Environmental Biology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland
- Correspondence: (S.M.); (E.T.); Tel.: +48-814-456-905 (S.M.)
| | - Piotr Dobrowolski
- Department of Functional Anatomy and Cytobiology, Faculty of Biology and Biotechnology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland;
| | - Kornel Kasperek
- Institute of Biological Basis of Animal Production, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland; (K.K.); (S.K.)
| | - Sebastian Knaga
- Institute of Biological Basis of Animal Production, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland; (K.K.); (S.K.)
| | - Małgorzata Kwiecień
- Institute of Animal Nutrition and Bromatology, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland;
| | - Janine Donaldson
- School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, 7 York St., Parktown, Johannesburg 2193, South Africa;
| | - Mateusz Kutyła
- Department of Industrial and Environmental Microbiology, Faculty of Biology and Biotechnology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland;
| | - Małgorzata Kapica
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka St. 12, 20-950 Lublin, Poland;
| | - Ewa Tomaszewska
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka St. 12, 20-950 Lublin, Poland;
- Correspondence: (S.M.); (E.T.); Tel.: +48-814-456-905 (S.M.)
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The Influence of the Partial Replacing of Inorganic Salts of Calcium, Zinc, Iron, and Copper with Amino Acid Complexes on Bone Development in Male Pheasants from Aviary Breeding. Animals (Basel) 2019; 9:ani9050237. [PMID: 31086121 PMCID: PMC6562463 DOI: 10.3390/ani9050237] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 01/14/2023] Open
Abstract
Simple Summary A significant problem of birds reared in farms and then reintroduced to natural living environment is their survival, which is usually much lower than that of the free-living ones. Behavioral and physiological deficiencies rather than morphological anatomy decide about failure, nevertheless, the birds’ body condition, including quality and maturity of skeletal system, are also important. In this context, the problem of proper nutrition for growing game birds is a major one. The level and source of microelements, as well as the source of protein are the main factors affecting bone growth in young captive-reared birds. Since calcium, zinc, iron, and copper are critical nutrients in all practical diets, this experiment was undertaken to determine the possibility of the partial inclusion of organic forms of these elements to the diet of pheasants in order to improve their bone development and survival. Abstract This study analyzed the effects of partial replacing of Ca, Fe, Zn, and Cu salts with glycine chelates on the measures of bones health in 16-week-old captive-reared male pheasants, allocated to one of the three experimental groups supplemented with Ca, Fe, Zn, and Cu in forms of inorganic salts (the control group) or groups receiving from the ninth week 25% and 50% of supplemented elements as glycine chelates. At the end of rearing birds receiving chelates were heavier (p < 0.001) and their tibia showed an increase of numerous mechanical parameters: yield and ultimate force (p = 0.028, p < 0.001, respectively), stiffness (p = 0.007), Young modulus (p < 0.001), compared to the control animals. The bones of birds receiving chelates in 50% were also heavier (p < 0.001) and longer (p = 0.014), with thinner cortical bone in midshaft (p = 0.027) and thicker proximal trabeculae (p < 0.001) compared to the control. While both doses of chelates increased mineral density in midshaft (p = 0.040), bone content of Cu and Zn decreased (p = 0.025, p < 0.001, respectively). The content of immature collagen in cancellous bone and articular cartilage increased in groups receiving chelates (p < 0.001, p = 0.001, respectively). In conclusion, glycine chelates probably enhanced development of the skeletal system in male pheasants as bones were denser and more resistant to mechanical damage.
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Abstract
Abstract
Fumonisins are strongly toxic metabolites of Fusarium proliferatum and Fusarium verticillioides commonly present in corn-based feed. The aim of the study was to evaluate bone homeostasis in experimental fumonisins B1 and B2 intoxication of rats, a vertebrate animal model of toxicological studies, as still little is known about the possible disturbing effect of fumonisins on bone homeostasis. Adolescent (5-week-old) male Wistar rats were randomly assigned into a control group and a group FB intoxicated with fumonisins by daily intragastric administration of fumonisins at the dose of 90 mg/kg of body weight per animal in the FB group for 21 days. The fumonisin intoxication did not affect body and bone mass, although the mechanical and geometric properties were decreased in fumonisin-intoxicated rats. Bone volumetric and mineral density did not differ between groups, but bone mineral content and bone ash percentage was lower in the FB group. Detailed analysis showed that Ca, Cu, Fe, Mn, Sr, and Zn bone content significantly decreased in fumonisin intoxicated rats and the alterations in structure of bone mineral phase (reduction of the apatite-bone crystals size) were noted. While the negative structural alterations in growth plate and articular cartilages were also observed, fumonisin intoxication improved histomorphometrical parameters of trabecular bone. Concluding, the dose of fumonisins used in the present study caused hepatotoxic effect, which was sufficient to trigger the disturbance in mineral homeostasis resulting in altered bone metabolism and decreased mechanical endurance.
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