Muscle satellite cells,as muscle stem cells,play a critical role in the process of muscle regeneration,and effective muscle regeneration helps to restore muscle function and maintain the homeostasis of muscle tissues....Muscle satellite cells,as muscle stem cells,play a critical role in the process of muscle regeneration,and effective muscle regeneration helps to restore muscle function and maintain the homeostasis of muscle tissues.In damaged muscle,muscle satellite cells are activated to form new myofibers through the process of cell proliferation,migration,differentiation and fusion to complete muscle tissue regeneration.Meanwhile,this process is mainly affected by endogenous gene expression and many exogenous factors.Researches in recent years have shown that vitamins,as important nutrients,play an extremely important role in the process of muscle regeneration.Therefore,this article reviewed the roles of vitamins in the regeneration of muscle satellite cells,according to the latest research progress.It would provide more theoretical and data support for the regeneration and repair of muscle damage,muscle atrophy and other muscle diseases,so that it could be better applied in the field of muscle regeneration researches and serve human health.展开更多
A total of 120-day-old broilers were divided into four groups. In group-A, broilers were left without supplementation of minerals and vitamins(control), while the broilers in groups B, C and D were given mineral and v...A total of 120-day-old broilers were divided into four groups. In group-A, broilers were left without supplementation of minerals and vitamins(control), while the broilers in groups B, C and D were given mineral and vitamin supplementation 1-6, 1-4 and 5-6 weeks, respectively. The results showed that the feed consumption of broilers in groups A, B, C and D was 4 234.61, 4 028.38, 4 169.32 and 4 181.87 g · b-1; water intake was 9 668.88, 9 295.55, 9 882.11 and 9 402.86 L · b-1; live body weight was 2 068.90, 2 360.90, 2 255.30 and 2 157.40 g · b-1, respectively. The feed conversion ratio of broilers in groups A, B, C, D was 2.05, 1.71, 1.85 and 1.94 g · b-1, carcass weight(wt) was 1 550, 1 656, 1 552 and 1 528.8 g · b-1, and average dressing percentage was 61.24, 63.02, 62.60 and 60.51 respectively. Weight of heart in groups A, B, C and D was 15.13, 13.16, 11.72 and 11.50 g · b-1, weight of gizzard was 32.98, 37.48, 37.62 and 33.35 g · b-1, weight of liver was 51.94, 48.70, 51.94 and 48.70 g · b-1 and spleen weight was 3.48, 3.28, 3.06 and 2.82 g · b-1, respectively. Average mortality of broilers in groups A, B, C and D was 6, 2, 4 and 5 resulting 20.00%, 8.00%, 13.00% and 16.00% mortality rate, respectively. The haemoglobin level in blood of broilers in groups A, B, C and D was 9.20, 12.23, 10.87 and 7.60 g · dL-1,white blood cell level 77.47, 89.83, 81.63 and 78.13(×106 μL); red blood cell level 1.85, 2.58, 2.45 and 1.40(×106 μL), respectively. It was concluded that broilers given mineral and vitamin supplementation(Aquavit Electrolyte) for 6 weeks were proven to be most effective regime to result the lowest feed intake, the highest live body weight, better feed conversion ratio, higher carcass weight, better dressing percentage, higher net profit, relatively improved haemoglobin level in blood, increased counts of red blood cells and white blood cells. In all the above parameters, the broilers received mineral and vitamin supplementation for the first 4 weeks and the last 2 weeks showed relatively inferior performance, it is suggested that mineral and vitamin supplementation through water for partial period was not much effective in broiler productivity. Broilers may be supplemented with commercially available minerals and vitamins in drinking water over full rearing period, for achieving higher live body weight and efficient feed conversion ratio.展开更多
A 2×2×2 factorial design was adopted to study the effects of temperature, moisture and choline chloride on vitamin A stability in premix. The results indicated that temperature, moisture and choline chloride...A 2×2×2 factorial design was adopted to study the effects of temperature, moisture and choline chloride on vitamin A stability in premix. The results indicated that temperature, moisture and choline chloride damaged vitamin A significantly. The regression equations of vitamin A disappearance rate and storage time were as follows： in room temperature （18±3）℃, y=14.368Ln（x）＋ 4.1425, R^2=0.978; in high temperature （4 ℃ ）, y=22.24Ln （x）＋13.27, R^2=0.9918; in low moisture （2%-3%）, y= 10.408Ln （x）＋9.5418, R^2=-0.9322; in high moisture （8%-9%）, y=26.199Ln（x）＋7.8741, R^2=-0.9949; in the condition of choline chloride flee, y=9.5125Ln（x）＋ 8.9869, R^2=0.9826; supplemented with choline chloride, y=27.094Ln （x）＋8.4276, R^2=0.9984. Temperature had highly significant interaction with moisure and choline chloride on destruction of vitamin A, respectively from the periods of two months storage. However, from the period of the first month storage, the interaction of moisture and choline chloride, as well as the interaction of temperature, moisture and choline destroyed vitamin A remarkably.展开更多
A new six intraperitoneal injection insulin-mimetic vanadyl(Ⅱ) compounds [(VD3^-1)(VO^+2)(AAn^-1)](where(n=1~6);AA1=isoleucine, AA2=threonine, AA3=proline, AA4=phenylalanine, AA5=lysine and AA6=glutamine) were synthe...A new six intraperitoneal injection insulin-mimetic vanadyl(Ⅱ) compounds [(VD3^-1)(VO^+2)(AAn^-1)](where(n=1~6);AA1=isoleucine, AA2=threonine, AA3=proline, AA4=phenylalanine, AA5=lysine and AA6=glutamine) were synthesized by the chemical reactions between vitamin D3(VD3), VOSO4 and amino acids(AAn) with equal molar ratio 1∶1∶1 in neutralized media. The structures of these complexes were elucidated by spectroscopic methods like, infrared and solid reflectance spectroscopes. Magnetic moments and electronic spectra reveal square pyramid geometrical structure of the complexes. The infrared spectra assignments of these complexes revealed that the chelation towards vanadyl(Ⅳ) ions existed via deprotonation of the hydroxyl group of VD3 drug ligand and so amino acids act as bidentate ligand via N-amino and O-carboxylate groups. The anti-diabetic efficiency of these complexes were evaluated against streptozotocin induced diabetic male albino rats.展开更多
Thirteen of 64 turkeys on a commercial turkey farm in Daqing exhibited neurological signs that included backward staggering,incoordination,generalized weakness,and sitting on their hocks with head retracted backward.E...Thirteen of 64 turkeys on a commercial turkey farm in Daqing exhibited neurological signs that included backward staggering,incoordination,generalized weakness,and sitting on their hocks with head retracted backward.Eight of the birds showing such signs were found dead.Two of these turkeys were necropsied,and no significant gross lesions were observed.Major histopathological lesions were found in the cerebellum and included multiple malacic foci in association with neuropil rarefaction and astrogliosis within the white matter of folia.In addition,the hepatic vitamin E level of one turkey was determined at the High Pressure Liqid Chromatography Laboratory in Life Science and Biotechnique Research Center of Northeast Agriculture University.(NEAU-HPLCL)to be 14 61 μg/g dry weight.This vitamin E level was in the lower percentile(35%)of 30 turkey liver samples examined at NEAU-HPLCL.A diagnosis of vitamin E-associated encephalomalacia was made based on clinical signs,gross and histological lesions,and liver vitamin E levels.展开更多
Hefeng 25 variety with low vitamin E content in Heilongjiang Province and Bayfield variety with high vitamin E content in Canada were crossed.A total of 144 F_(2:7) recombinant inbred lines(RILs)were used as materials...Hefeng 25 variety with low vitamin E content in Heilongjiang Province and Bayfield variety with high vitamin E content in Canada were crossed.A total of 144 F_(2:7) recombinant inbred lines(RILs)were used as materials.The genetic linkage mapping of soybean vitamin E was constructed.Soybean varieties were marker-assisted selected in the interval of refined quantitative trait locus(QTLs).QTLs were identified in α-,γ-,δ-and the total tocopherol contents of soybean seeds.Fine QTLs of soybean vitamin E content were identified in the interval between Sat_239 and Satt022 on N linkage group.It was valuable to narrow the interval by marker-assisted selection(MAS).There were seven major QTLs of vitamin E content in soybean.MAS related to vitamin E content in soybean was carried out in the intervals between Sat_239 and Satt022.Considering all the kinds of agronomic traits,six strains with high yield and good quality of vitamin E were chosen,numbered 4,54,104,114,122 and 135.展开更多
文摘Muscle satellite cells,as muscle stem cells,play a critical role in the process of muscle regeneration,and effective muscle regeneration helps to restore muscle function and maintain the homeostasis of muscle tissues.In damaged muscle,muscle satellite cells are activated to form new myofibers through the process of cell proliferation,migration,differentiation and fusion to complete muscle tissue regeneration.Meanwhile,this process is mainly affected by endogenous gene expression and many exogenous factors.Researches in recent years have shown that vitamins,as important nutrients,play an extremely important role in the process of muscle regeneration.Therefore,this article reviewed the roles of vitamins in the regeneration of muscle satellite cells,according to the latest research progress.It would provide more theoretical and data support for the regeneration and repair of muscle damage,muscle atrophy and other muscle diseases,so that it could be better applied in the field of muscle regeneration researches and serve human health.
文摘A total of 120-day-old broilers were divided into four groups. In group-A, broilers were left without supplementation of minerals and vitamins(control), while the broilers in groups B, C and D were given mineral and vitamin supplementation 1-6, 1-4 and 5-6 weeks, respectively. The results showed that the feed consumption of broilers in groups A, B, C and D was 4 234.61, 4 028.38, 4 169.32 and 4 181.87 g · b-1; water intake was 9 668.88, 9 295.55, 9 882.11 and 9 402.86 L · b-1; live body weight was 2 068.90, 2 360.90, 2 255.30 and 2 157.40 g · b-1, respectively. The feed conversion ratio of broilers in groups A, B, C, D was 2.05, 1.71, 1.85 and 1.94 g · b-1, carcass weight(wt) was 1 550, 1 656, 1 552 and 1 528.8 g · b-1, and average dressing percentage was 61.24, 63.02, 62.60 and 60.51 respectively. Weight of heart in groups A, B, C and D was 15.13, 13.16, 11.72 and 11.50 g · b-1, weight of gizzard was 32.98, 37.48, 37.62 and 33.35 g · b-1, weight of liver was 51.94, 48.70, 51.94 and 48.70 g · b-1 and spleen weight was 3.48, 3.28, 3.06 and 2.82 g · b-1, respectively. Average mortality of broilers in groups A, B, C and D was 6, 2, 4 and 5 resulting 20.00%, 8.00%, 13.00% and 16.00% mortality rate, respectively. The haemoglobin level in blood of broilers in groups A, B, C and D was 9.20, 12.23, 10.87 and 7.60 g · dL-1,white blood cell level 77.47, 89.83, 81.63 and 78.13(×106 μL); red blood cell level 1.85, 2.58, 2.45 and 1.40(×106 μL), respectively. It was concluded that broilers given mineral and vitamin supplementation(Aquavit Electrolyte) for 6 weeks were proven to be most effective regime to result the lowest feed intake, the highest live body weight, better feed conversion ratio, higher carcass weight, better dressing percentage, higher net profit, relatively improved haemoglobin level in blood, increased counts of red blood cells and white blood cells. In all the above parameters, the broilers received mineral and vitamin supplementation for the first 4 weeks and the last 2 weeks showed relatively inferior performance, it is suggested that mineral and vitamin supplementation through water for partial period was not much effective in broiler productivity. Broilers may be supplemented with commercially available minerals and vitamins in drinking water over full rearing period, for achieving higher live body weight and efficient feed conversion ratio.
基金Supported by National Basic Research Program(2004CB11750-5)
文摘A 2×2×2 factorial design was adopted to study the effects of temperature, moisture and choline chloride on vitamin A stability in premix. The results indicated that temperature, moisture and choline chloride damaged vitamin A significantly. The regression equations of vitamin A disappearance rate and storage time were as follows： in room temperature （18±3）℃, y=14.368Ln（x）＋ 4.1425, R^2=0.978; in high temperature （4 ℃ ）, y=22.24Ln （x）＋13.27, R^2=0.9918; in low moisture （2%-3%）, y= 10.408Ln （x）＋9.5418, R^2=-0.9322; in high moisture （8%-9%）, y=26.199Ln（x）＋7.8741, R^2=-0.9949; in the condition of choline chloride flee, y=9.5125Ln（x）＋ 8.9869, R^2=0.9826; supplemented with choline chloride, y=27.094Ln （x）＋8.4276, R^2=0.9984. Temperature had highly significant interaction with moisure and choline chloride on destruction of vitamin A, respectively from the periods of two months storage. However, from the period of the first month storage, the interaction of moisture and choline chloride, as well as the interaction of temperature, moisture and choline destroyed vitamin A remarkably.
文摘A new six intraperitoneal injection insulin-mimetic vanadyl(Ⅱ) compounds [(VD3^-1)(VO^+2)(AAn^-1)](where(n=1~6);AA1=isoleucine, AA2=threonine, AA3=proline, AA4=phenylalanine, AA5=lysine and AA6=glutamine) were synthesized by the chemical reactions between vitamin D3(VD3), VOSO4 and amino acids(AAn) with equal molar ratio 1∶1∶1 in neutralized media. The structures of these complexes were elucidated by spectroscopic methods like, infrared and solid reflectance spectroscopes. Magnetic moments and electronic spectra reveal square pyramid geometrical structure of the complexes. The infrared spectra assignments of these complexes revealed that the chelation towards vanadyl(Ⅳ) ions existed via deprotonation of the hydroxyl group of VD3 drug ligand and so amino acids act as bidentate ligand via N-amino and O-carboxylate groups. The anti-diabetic efficiency of these complexes were evaluated against streptozotocin induced diabetic male albino rats.
文摘Thirteen of 64 turkeys on a commercial turkey farm in Daqing exhibited neurological signs that included backward staggering,incoordination,generalized weakness,and sitting on their hocks with head retracted backward.Eight of the birds showing such signs were found dead.Two of these turkeys were necropsied,and no significant gross lesions were observed.Major histopathological lesions were found in the cerebellum and included multiple malacic foci in association with neuropil rarefaction and astrogliosis within the white matter of folia.In addition,the hepatic vitamin E level of one turkey was determined at the High Pressure Liqid Chromatography Laboratory in Life Science and Biotechnique Research Center of Northeast Agriculture University.(NEAU-HPLCL)to be 14 61 μg/g dry weight.This vitamin E level was in the lower percentile(35%)of 30 turkey liver samples examined at NEAU-HPLCL.A diagnosis of vitamin E-associated encephalomalacia was made based on clinical signs,gross and histological lesions,and liver vitamin E levels.
基金Supported by Chinese National Natural Science Foundation(31701446)。
文摘Hefeng 25 variety with low vitamin E content in Heilongjiang Province and Bayfield variety with high vitamin E content in Canada were crossed.A total of 144 F_(2:7) recombinant inbred lines(RILs)were used as materials.The genetic linkage mapping of soybean vitamin E was constructed.Soybean varieties were marker-assisted selected in the interval of refined quantitative trait locus(QTLs).QTLs were identified in α-,γ-,δ-and the total tocopherol contents of soybean seeds.Fine QTLs of soybean vitamin E content were identified in the interval between Sat_239 and Satt022 on N linkage group.It was valuable to narrow the interval by marker-assisted selection(MAS).There were seven major QTLs of vitamin E content in soybean.MAS related to vitamin E content in soybean was carried out in the intervals between Sat_239 and Satt022.Considering all the kinds of agronomic traits,six strains with high yield and good quality of vitamin E were chosen,numbered 4,54,104,114,122 and 135.
