Effect of tetramethyl thiuram disulfide (thiram) in relation to tibial dyschondroplasia in chickens. 2018

Hui Zhang, and Khalid Mehmood, and Xiong Jiang, and Wangyuan Yao, and Mujahid Iqbal, and Muhammad Waqas, and Mujeeb Ur Rehman, and Aoyun Li, and Yaoqin Shen, and Jiakui Li
College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.

Tetramethyl thiuram disulfide (thiram) is one of the important pesticides, which is extensively used in agriculture, but if it is combined with the cell membrane, then it causes membrane damage, bone morphogenic inactivation, and inhibited angiogenesis. Thiram has been considered a common cause of tibial dyschondrolplasia (TD) in various avian species, because it becomes the part of feed due to environmental contamination and its overuse in agriculture as pesticides or fungicide. However, there is no systematic study on the changes of the correlation indexes with toxic effect of the thiram in chickens. Therefore, we evaluated the toxic effects of thiram on growth performance of chickens, viscera organ index, pathological changes in tissue, and gene expression associated with osteoblast differentiation, vascularization, and tibial bone development. For this study, 1-day chickens (n = 300) were randomly distributed into two equal groups, control group (normal basal diet) and thiram group (adding thiram 40 mg/kg in basal diet). The result presented that thiram group chickens were looking unhealthy, lazy, and showing clinical symptoms like lameness. Thiram treatment significantly reduced the performance of chickens, liver index, and tibial length compared with control group. The toxic effect of thiram increased the visceral organ index (spleen and cardiac), tibia index, and TD severity considerably. It also increased serum Ca2+ and P3+ concentration and decreased tibial density compared to control chickens but the difference was not significant. Histopathology of tibia and liver showed that there were severe lesions due to toxic effect of thiram. Furthermore, HIF-1α and VEGF antibody localizations were increased and WNT4 localization was reduced significantly in immunohistochemical analysis. This systemic study of toxic effects of thiram in chicken concluded that thiram reduced the growth performance of chickens through decreasing liver index, whereas increasing kidney, cardiac, and spleen index, and induced TD by changing the expressions of VEGF, HIF-1α, and WNT4.

UI MeSH Term Description Entries
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D009389 Neovascularization, Pathologic A pathologic process consisting of the proliferation of blood vessels in abnormal tissues or in abnormal positions. Angiogenesis, Pathologic,Angiogenesis, Pathological,Neovascularization, Pathological,Pathologic Angiogenesis,Pathologic Neovascularization,Pathological Angiogenesis,Pathological Neovascularization
D010009 Osteochondrodysplasias Abnormal development of cartilage and bone. Dyschondroplasias,Hyperostosis Corticalis Generalisata,Melnick-Needles Syndrome,Multiple Epiphyseal Dysplasia,Schwartz-Jampel Syndrome,Spondyloepiphyseal Dysplasia,Chondrodystrophic Myotonia,Dyschondroplasia,Endosteal Hyperostosis, Autosomal Recessive,Hyperphosphatasemia Tarda,Late-Onset Spondyloepiphyseal Dysplasia,Melnick-Needles Osteodysplasty,Myotonic Chondrodystrophy,Myotonic Myopathy, Dwarfism, Chondrodystrophy, And Ocular And Facial Abnormalities,Osteodysplasty of Melnick and Needles,SED Tarda,SJA Syndrome,Schwartz Jampel Aberfeld syndrome,Schwartz-Jampel Syndrome, Type 1,Schwartz-Jampel-Aberfeld Syndrome,Sost Sclerosing Bone Dysplasia,Sost-Related Sclerosing Bone Dysplasia,Spondylo-Epimetaphyseal Dysplasia With Myotonia,Spondyloepiphyseal Dysplasia Tarda, X-Linked,Spondyloepiphyseal Dysplasia, Late,Van Buchem Disease,X-Linked SED,X-Linked SEDT,X-Linked Spondyloepiphyseal Dysplasia Tarda,Chondrodystrophy, Myotonic,Dysplasia, Spondyloepiphyseal,Late Onset Spondyloepiphyseal Dysplasia,Late Spondyloepiphyseal Dysplasia,Melnick Needles Osteodysplasty,Melnick Needles Syndrome,Myotonia, Chondrodystrophic,Osteochondrodysplasia,Osteodysplasty, Melnick-Needles,SED, X-Linked,SEDT, X-Linked,Schwartz Jampel Syndrome,Schwartz Jampel Syndrome, Type 1,Spondyloepiphyseal Dysplasia Tarda, X Linked,Spondyloepiphyseal Dysplasia, Late-Onset,Syndrome, Schwartz-Jampel-Aberfeld,X Linked SED,X Linked SEDT,X Linked Spondyloepiphyseal Dysplasia Tarda
D010575 Pesticides Chemicals used to destroy pests of any sort. The concept includes fungicides (FUNGICIDES, INDUSTRIAL); INSECTICIDES; RODENTICIDES; etc. Pesticide
D011201 Poultry Diseases Diseases of birds which are raised as a source of meat or eggs for human consumption and are usually found in barnyards, hatcheries, etc. The concept is differentiated from BIRD DISEASES which is for diseases of birds not considered poultry and usually found in zoos, parks, and the wild. Disease, Poultry,Diseases, Poultry,Poultry Disease
D002645 Chickens Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA. Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013893 Thiram A dithiocarbamate chemical, used commercially in the rubber processing industry and as a fungicide. In vivo studies indicate that it inactivates the enzyme GLUTATHIONE REDUCTASE. It has mutagenic activity and may induce chromosomal aberrations. Bacteriostat,Nobecutan,Sadoplon 75,TMT Disulfide,TMTD,Tetramethylthiuram Disulfide,Thiuram,Thiuram D,Disulfide, TMT,Disulfide, Tetramethylthiuram
D013977 Tibia The second longest bone of the skeleton. It is located on the medial side of the lower leg, articulating with the FIBULA laterally, the TALUS distally, and the FEMUR proximally. Tibias
D042461 Vascular Endothelial Growth Factor A The original member of the family of endothelial cell growth factors referred to as VASCULAR ENDOTHELIAL GROWTH FACTORS. Vascular endothelial growth factor-A was originally isolated from tumor cells and referred to as "tumor angiogenesis factor" and "vascular permeability factor". Although expressed at high levels in certain tumor-derived cells it is produced by a wide variety of cell types. In addition to stimulating vascular growth and vascular permeability it may play a role in stimulating VASODILATION via NITRIC OXIDE-dependent pathways. Alternative splicing of the mRNA for vascular endothelial growth factor A results in several isoforms of the protein being produced. Vascular Endothelial Growth Factor,Vascular Endothelial Growth Factor-A,GD-VEGF,Glioma-Derived Vascular Endothelial Cell Growth Factor,VEGF,VEGF-A,Vascular Permeability Factor,Vasculotropin,Glioma Derived Vascular Endothelial Cell Growth Factor,Permeability Factor, Vascular

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