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Gamme d'année
1.
Braz. j. biol ; 84: e271945, 2024. tab, graf, ilus
Article de Anglais | VETINDEX | ID: biblio-1439685

RÉSUMÉ

Environmental pollution has the potential to have a significant impact on animal's health especially on birds due to daily exposure and habitat. This experimental study was carried out for a 60 days period in which, a total of 24 pigeon birds with suitable weight (80-100 g) were kept in Animal house with suitable environmental conditions viz, controlled temperature, humidity & light source to minimize any other stress. Out of twenty-four, eighteen birds were divided into three treatment groups (6 birds in each group). Whole experiment was run in triplicate manner in breeding season. One served as Control (Group 1) and remaining three were experimental groups including Road traffic noise (Group 2), Military noise (Group 3) & Human activities noise (Group 4). Noise was applied as recorded high intensity music (1125 Hz/ 90 dB) through speakers for 5-6 hrs. daily. Blood sampling was done after 20, 40 and 60 days by sacrificing treatment birds. Noise stress significantly (p<0.05) increase the serum levels of corticosterone and thyroid stimulating hormone (TSH) in Group 2 while significantly (p<0.05) decrease the serum levels of luteinizing hormone (LH) and follicle stimulating hormone (FSH) of Group 3 birds. Moreover, major fault bars formation was seen both in Group 2 and Group 3. It was concluded as that Noise stress caused rise in serum levels of Corticosterone and TSH but fall in LH and FSH. Along with fault bars formation was also prominent in all treatment groups due to stress hormone.


A poluição ambiental tem o potencial de impactar significativamente a saúde animal, especialmente das aves, devido à exposição diária e ao habitat. Este estudo experimental foi realizado por um período de 60 dias em que, um total de 24 pombos com peso adequado (80-100 g) foram mantidos em biotério com condições ambientais adequadas, ou seja, temperatura, umidade e fonte de luz controladas para minimizar qualquer outro estresse. De 24, 18 aves foram divididas em 3 grupos de tratamento (6 aves em cada grupo). Todo o experimento foi executado em triplicado na época de reprodução. Um deles serviu como controle (Grupo 1) e os 3 restantes foram grupos experimentais, incluindo ruído de tráfego rodoviário (Grupo 2), ruído militar (Grupo 3) e ruído de atividades humanas (Grupo 4). O ruído foi aplicado como música gravada de alta intensidade (1125 Hz/90 dB) através de alto-falantes por 5-6 horas diárias. A coleta de sangue foi feita após 20, 40 e 60 dias sacrificando as aves do tratamento. O estresse sonoro aumentou significativamente (p < 0,05) os níveis séricos de corticosterona e hormônio estimulante da tireoide (TSH) no Grupo 2 enquanto diminuiu significativamente (p < 0,05) os níveis séricos de hormônio luteinizante (LH) e hormônio folículo estimulante (FSH) do Grupo 3. Além disso, a maior formação de barras de falha foi observada tanto no Grupo 2 quanto no Grupo 3. Concluiu-se que o estresse por ruído causou aumento nos níveis séricos de corticosterona e TSH, mas queda em LH e FSH. Junto com a formação de barras de falha também foi proeminente em todos os grupos de tratamento devido ao hormônio do estresse.


Sujet(s)
Animaux , Columbidae/malformations , Reproduction , Malformations/médecine vétérinaire , Effets du Bruit
2.
Braz J Biol ; 84: e271945, 2023.
Article de Anglais | MEDLINE | ID: mdl-37255177

RÉSUMÉ

Environmental pollution has the potential to have a significant impact on animal's health especially on birds due to daily exposure and habitat. This experimental study was carried out for a 60 days period in which, a total of 24 pigeon birds with suitable weight (80-100 g) were kept in Animal house with suitable environmental conditions viz, controlled temperature, humidity & light source to minimize any other stress. Out of twenty-four, eighteen birds were divided into three treatment groups (6 birds in each group). Whole experiment was run in triplicate manner in breeding season. One served as Control (Group 1) and remaining three were experimental groups including Road traffic noise (Group 2), Military noise (Group 3) & Human activities noise (Group 4). Noise was applied as recorded high intensity music (1125 Hz/ 90 dB) through speakers for 5-6 hrs. daily. Blood sampling was done after 20, 40 and 60 days by sacrificing treatment birds. Noise stress significantly (p<0.05) increase the serum levels of corticosterone and thyroid stimulating hormone (TSH) in Group 2 while significantly (p<0.05) decrease the serum levels of luteinizing hormone (LH) and follicle stimulating hormone (FSH) of Group 3 birds. Moreover, major fault bars formation was seen both in Group 2 and Group 3. It was concluded as that Noise stress caused rise in serum levels of Corticosterone and TSH but fall in LH and FSH. Along with fault bars formation was also prominent in all treatment groups due to stress hormone.


Sujet(s)
Columbidae , Corticostérone , Animaux , Humains , Hormone lutéinisante , Hormone folliculostimulante , Thyréostimuline
3.
Braz J Biol ; 83: e270256, 2023.
Article de Anglais | MEDLINE | ID: mdl-37018800

RÉSUMÉ

Cobalt metal is considered as an essential trace element for the animals. Present investigation was undertaken in the peri-urban area to analyze the cobalt availability in animal food chain by using different indices. Cow, buffalo and sheep samples along with forage and soil samples were collected from the three different sites of District Jhang and analyzed through atomic absorption spectrophotometer. Cobalt values differed in soil samples as 0.315-0.535 mg/kg, forages as 0.127-0.333 mg/kg and animal samples as 0.364-0.504 mg/kg. Analyzed cobalt concentration in soil, forage and animal samples was found to be deficient in concentration with respect to standard limits. Soil showed the minimum cobalt level in Z. mays while maximum concentration was examined in the forage C. decidua samples. All indices examined in this study has values lesser than 1, representing the safer limits of the cobalt concentration in these samples. Enrichment factor (0.071-0.161 mg/kg) showed the highly deficient amount of cobalt enrichment in this area. Bio-concentration factor (0.392-0.883) and pollution load index (0.035-0.059 mg/kg) values were also lesser than 1 explains that plant and soil samples are not contaminated with cobalt metal. The daily intake and health risk index ranged from 0.00019-0.00064 mg/kg/day and 0.0044-0.0150 mg/kg/day respectively. Among the animals, cobalt availability was maximum (0.0150 mg/kg/day) in the buffaloes that grazed on the C. decidua fodder. Results of this study concluded that cobalt containing fertilizers must be applied on the soil and forages. Animal feed derived from the cobalt containing supplements are supplied to the animals, to fulfill the nutritional requirements of livestock.


Sujet(s)
Cobalt , Polluants du sol , Femelle , Bovins , Animaux , Ovis , Sol , Chaine alimentaire , Polluants du sol/analyse , Aliment pour animaux/analyse , Buffles
4.
Braz. j. biol ; 83: 1-6, 2023. ilus, tab, graf
Article de Anglais | LILACS, VETINDEX | ID: biblio-1469014

RÉSUMÉ

By applying the in-silico method, resveratrol was docked on those proteins which are responsible for bone loss. The Molecular docking data between the resveratrol and Receptor activator of nuclear factor-kappa-Β ligand [RANKL] receptors proved that resveratrol binds tightly to the receptors, showed the highest binding affinities of −6.9, −7.6, −7.1, −6.9, −6.7, and −7.1 kcal/mol. According to in-vitro data, Resveratrol reduced the osteoclasts after treating Marrow-Derived Macrophages [BMM] with Macrophage colony-stimulating factor [MCSF] 20ng / ml and RANKL 50ng / ml, with different concentrations of resveratrol (2.5, 10 μg / ml) For 7 days, the cells were treated with MCSF (20 ng / ml) and RANKL (40 ng / ml) together with concentrated trimethyl ether and resveratrol (2.5, 10 μg / ml) within 12 hours. Which, not affect cell survival. After fixing osteoclast cells with formaldehyde fixative on glass coverslip followed by incubation with 0.1% Triton X-100 in PBS for 5 min and after that stain with rhodamine phalloidin staining for actin and Hoechst for nuclei. Fluorescence microscopy was performed to see the distribution of filaments actin [F.actin]. Finally, resveratrol reduced the actin ring formation. Resveratrol is the best bioactive compound for drug preparation against bone loss.


Com a aplicação do método in-silico, o resveratrol foi ancorado nas proteínas responsáveis pela perda óssea. Os dados de docking molecular entre o resveratrol e o ligante do receptor ativador do fator nuclear kappa-Β [Receptor Activator of Nuclear Factor kappa-B Ligant (RANKL)] provaram que o resveratrol se liga fortemente aos receptores, mostraram as afinidades de ligação mais altas de −6,9, −7,6, −7,1, −6,9, - 6,7 e -7,1 kcal / mol. De acordo com dados in-vitro, o resveratrol reduziu os osteoclastos após o tratamento de macrófagos derivados da medula óssea [Bone Marrow derived Macrophage (BMM)] com fator estimulador de colônias de macrófagos [Macrophage Colony-Stimulating Factor (MCSF)] 20ng / ml e RANKL 50ng / ml, com diferentes concentrações de resveratrol (2,5, 10 μg / ml). Durante sete dias, as células foram tratadas com MCSF (20 ng / ml) e RANKL (40 ng / ml) juntamente com éter trimetílico concentrado e resveratrol (2,5, 10 μg / ml) em 12 horas, processo que não afeta a sobrevivência celular. Após a fixação de células de osteoclastos com fixador de formaldeído em lamela de vidro seguido de incubação com 0,1% Triton X-100 em PBS por 5 min, foi realizado posteriormente o procedimento para corar com rodamina faloidina a actina e Hoechst os núcleos. A microscopia de fluorescência foi realizada para ver a distribuição dos filamentos de actina [F.actina]. Finalmente, o resveratrol reduziu a formação do anel de actina. O resveratrol é o melhor composto bioativo para o preparo de medicamentos contra a perda óssea.


Sujet(s)
Humains , Ostéoporose/traitement médicamenteux , Resvératrol/pharmacologie , Microscopie de fluorescence
5.
Braz. j. biol ; 832023.
Article de Anglais | LILACS-Express | LILACS, VETINDEX | ID: biblio-1469233

RÉSUMÉ

Abstract By applying the in-silico method, resveratrol was docked on those proteins which are responsible for bone loss. The Molecular docking data between the resveratrol and Receptor activator of nuclear factor-kappa- ligand [RANKL] receptors proved that resveratrol binds tightly to the receptors, showed the highest binding affinities of 6.9, 7.6, 7.1, 6.9, 6.7, and 7.1 kcal/mol. According to in-vitro data, Resveratrol reduced the osteoclasts after treating Marrow-Derived Macrophages [BMM] with Macrophage colony-stimulating factor [MCSF] 20ng / ml and RANKL 50ng / ml, with different concentrations of resveratrol (2.5, 10 g / ml) For 7 days, the cells were treated with MCSF (20 ng / ml) and RANKL (40 ng / ml) together with concentrated trimethyl ether and resveratrol (2.5, 10 g / ml) within 12 hours. Which, not affect cell survival. After fixing osteoclast cells with formaldehyde fixative on glass coverslip followed by incubation with 0.1% Triton X-100 in PBS for 5 min and after that stain with rhodamine phalloidin staining for actin and Hoechst for nuclei. Fluorescence microscopy was performed to see the distribution of filaments actin [F.actin]. Finally, resveratrol reduced the actin ring formation. Resveratrol is the best bioactive compound for drug preparation against bone loss.


Resumo Com a aplicação do método in-silico, o resveratrol foi ancorado nas proteínas responsáveis pela perda óssea. Os dados de docking molecular entre o resveratrol e o ligante do receptor ativador do fator nuclear kappa- [Receptor Activator of Nuclear Factor kappa-B Ligant (RANKL)] provaram que o resveratrol se liga fortemente aos receptores, mostraram as afinidades de ligação mais altas de 6,9, 7,6, 7,1, 6,9, - 6,7 e -7,1 kcal / mol. De acordo com dados in-vitro, o resveratrol reduziu os osteoclastos após o tratamento de macrófagos derivados da medula óssea [Bone Marrow-derived Macrophage (BMM)] com fator estimulador de colônias de macrófagos [Macrophage Colony-Stimulating Factor (MCSF)] 20ng / ml e RANKL 50ng / ml, com diferentes concentrações de resveratrol (2,5, 10 g / ml). Durante sete dias, as células foram tratadas com MCSF (20 ng / ml) e RANKL (40 ng / ml) juntamente com éter trimetílico concentrado e resveratrol (2,5, 10 g / ml) em 12 horas, processo que não afeta a sobrevivência celular. Após a fixação de células de osteoclastos com fixador de formaldeído em lamela de vidro seguido de incubação com 0,1% Triton X-100 em PBS por 5 min, foi realizado posteriormente o procedimento para corar com rodamina faloidina a actina e Hoechst os núcleos. A microscopia de fluorescência foi realizada para ver a distribuição dos filamentos de actina [F.actina]. Finalmente, o resveratrol reduziu a formação do anel de actina. O resveratrol é o melhor composto bioativo para o preparo de medicamentos contra a perda óssea.

6.
Braz. j. biol ; 83: e248024, 2023. tab, graf
Article de Anglais | LILACS, VETINDEX | ID: biblio-1355855

RÉSUMÉ

Abstract By applying the in-silico method, resveratrol was docked on those proteins which are responsible for bone loss. The Molecular docking data between the resveratrol and Receptor activator of nuclear factor-kappa-Β ligand [RANKL] receptors proved that resveratrol binds tightly to the receptors, showed the highest binding affinities of −6.9, −7.6, −7.1, −6.9, −6.7, and −7.1 kcal/mol. According to in-vitro data, Resveratrol reduced the osteoclasts after treating Marrow-Derived Macrophages [BMM] with Macrophage colony-stimulating factor [MCSF] 20ng / ml and RANKL 50ng / ml, with different concentrations of resveratrol (2.5, 10 μg / ml) For 7 days, the cells were treated with MCSF (20 ng / ml) and RANKL (40 ng / ml) together with concentrated trimethyl ether and resveratrol (2.5, 10 μg / ml) within 12 hours. Which, not affect cell survival. After fixing osteoclast cells with formaldehyde fixative on glass coverslip followed by incubation with 0.1% Triton X-100 in PBS for 5 min and after that stain with rhodamine phalloidin staining for actin and Hoechst for nuclei. Fluorescence microscopy was performed to see the distribution of filaments actin [F.actin]. Finally, resveratrol reduced the actin ring formation. Resveratrol is the best bioactive compound for drug preparation against bone loss.


Resumo Com a aplicação do método in-silico, o resveratrol foi ancorado nas proteínas responsáveis ​​pela perda óssea. Os dados de docking molecular entre o resveratrol e o ligante do receptor ativador do fator nuclear kappa-Β [Receptor Activator of Nuclear Factor kappa-B Ligant (RANKL)] provaram que o resveratrol se liga fortemente aos receptores, mostraram as afinidades de ligação mais altas de −6,9, −7,6, −7,1, −6,9, - 6,7 e -7,1 kcal / mol. De acordo com dados in-vitro, o resveratrol reduziu os osteoclastos após o tratamento de macrófagos derivados da medula óssea [Bone Marrow-derived Macrophage (BMM)] com fator estimulador de colônias de macrófagos [Macrophage Colony-Stimulating Factor (MCSF)] 20ng / ml e RANKL 50ng / ml, com diferentes concentrações de resveratrol (2,5, 10 μg / ml). Durante sete dias, as células foram tratadas com MCSF (20 ng / ml) e RANKL (40 ng / ml) juntamente com éter trimetílico concentrado e resveratrol (2,5, 10 μg / ml) em 12 horas, processo que não afeta a sobrevivência celular. Após a fixação de células de osteoclastos com fixador de formaldeído em lamela de vidro seguido de incubação com 0,1% Triton X-100 em PBS por 5 min, foi realizado posteriormente o procedimento para corar com rodamina faloidina a actina e Hoechst os núcleos. A microscopia de fluorescência foi realizada para ver a distribuição dos filamentos de actina [F.actina]. Finalmente, o resveratrol reduziu a formação do anel de actina. O resveratrol é o melhor composto bioativo para o preparo de medicamentos contra a perda óssea.


Sujet(s)
Ostéoclastes , Ligand de RANK , Différenciation cellulaire , Simulation de docking moléculaire , Resvératrol/pharmacologie
7.
Braz. j. biol ; 83: e270256, 2023. tab, graf, mapas
Article de Anglais | VETINDEX | ID: biblio-1429997

RÉSUMÉ

Cobalt metal is considered as an essential trace element for the animals. Present investigation was undertaken in the peri-urban area to analyze the cobalt availability in animal food chain by using different indices. Cow, buffalo and sheep samples along with forage and soil samples were collected from the three different sites of District Jhang and analyzed through atomic absorption spectrophotometer. Cobalt values differed in soil samples as 0.315-0.535 mg/kg, forages as 0.127-0.333 mg/kg and animal samples as 0.364-0.504 mg/kg. Analyzed cobalt concentration in soil, forage and animal samples was found to be deficient in concentration with respect to standard limits. Soil showed the minimum cobalt level in Z. mays while maximum concentration was examined in the forage C. decidua samples. All indices examined in this study has values lesser than 1, representing the safer limits of the cobalt concentration in these samples. Enrichment factor (0.071-0.161 mg/kg) showed the highly deficient amount of cobalt enrichment in this area. Bio-concentration factor (0.392-0.883) and pollution load index (0.035-0.059 mg/kg) values were also lesser than 1 explains that plant and soil samples are not contaminated with cobalt metal. The daily intake and health risk index ranged from 0.00019-0.00064 mg/kg/day and 0.0044-0.0150 mg/kg/day respectively. Among the animals, cobalt availability was maximum (0.0150 mg/kg/day) in the buffaloes that grazed on the C. decidua fodder. Results of this study concluded that cobalt containing fertilizers must be applied on the soil and forages. Animal feed derived from the cobalt containing supplements are supplied to the animals, to fulfill the nutritional requirements of livestock.


O metal cobalto é considerado um oligoelemento essencial para os animais. A presente investigação foi realizada na área periurbana para analisar a disponibilidade de cobalto na cadeia alimentar animal usando diferentes índices. Amostras de vacas, búfalos e ovelhas, juntamente com amostras de forragem e solo foram coletadas em três locais diferentes do Distrito Jhang e analisadas por meio de espectrofotômetro de absorção atômica. Os valores de cobalto diferiram em amostras de solo como 0,315-0,535mg/kg, forragens como 0,127-0,333 mg/kg e amostras de animais como 0,364-0,504 mg/kg. A concentração de cobalto analisada no solo, forragem e amostras de animais foi considerada deficiente em relação aos limites padrão. O solo apresentou o teor mínimo de cobalto em Z. mays enquanto a concentração máxima foi examinada nas amostras de forragem C. decidua. Todos os índices examinados neste estudo possuem valores menores que 1, representando os limites mais seguros da concentração de cobalto nestas amostras. O fator de enriquecimento (0,071-0,161 mg/kg) mostrou a quantidade altamente deficiente de enriquecimento de cobalto nesta área. Os valores do fator de bioconcentração (0,392-0,883) e do índice de carga de poluição (0,035-0,059 mg/kg) também foram menores que 1, o que explica que as amostras de plantas e solo não estão contaminadas com cobalto metálico. A ingestão diária e o índice de risco à saúde variaram de 0,00019-0,00064 mg/kg/dia e 0,0044-0,0150 mg/kg/dia, respectivamente. Entre os animais, a disponibilidade de cobalto foi máxima (0,0150 mg/kg/dia) nos búfalos que pastaram na forragem de C. decidua. Os resultados deste estudo concluíram que fertilizantes contendo cobalto devem ser aplicados no solo e nas forragens. A ração animal derivada dos suplementos contendo cobalto é fornecida aos animais, para atender às necessidades nutricionais do gado.


Sujet(s)
Analyse du Sol , Cobalt , Chaine alimentaire , Engrais
8.
Braz. J. Biol. ; 83: 1-6, 2023. ilus, tab, graf
Article de Anglais | VETINDEX | ID: vti-765591

RÉSUMÉ

By applying the in-silico method, resveratrol was docked on those proteins which are responsible for bone loss. The Molecular docking data between the resveratrol and Receptor activator of nuclear factor-kappa-Β ligand [RANKL] receptors proved that resveratrol binds tightly to the receptors, showed the highest binding affinities of −6.9, −7.6, −7.1, −6.9, −6.7, and −7.1 kcal/mol. According to in-vitro data, Resveratrol reduced the osteoclasts after treating Marrow-Derived Macrophages [BMM] with Macrophage colony-stimulating factor [MCSF] 20ng / ml and RANKL 50ng / ml, with different concentrations of resveratrol (2.5, 10 μg / ml) For 7 days, the cells were treated with MCSF (20 ng / ml) and RANKL (40 ng / ml) together with concentrated trimethyl ether and resveratrol (2.5, 10 μg / ml) within 12 hours. Which, not affect cell survival. After fixing osteoclast cells with formaldehyde fixative on glass coverslip followed by incubation with 0.1% Triton X-100 in PBS for 5 min and after that stain with rhodamine phalloidin staining for actin and Hoechst for nuclei. Fluorescence microscopy was performed to see the distribution of filaments actin [F.actin]. Finally, resveratrol reduced the actin ring formation. Resveratrol is the best bioactive compound for drug preparation against bone loss.(AU)


Com a aplicação do método in-silico, o resveratrol foi ancorado nas proteínas responsáveis pela perda óssea. Os dados de docking molecular entre o resveratrol e o ligante do receptor ativador do fator nuclear kappa-Β [Receptor Activator of Nuclear Factor kappa-B Ligant (RANKL)] provaram que o resveratrol se liga fortemente aos receptores, mostraram as afinidades de ligação mais altas de −6,9, −7,6, −7,1, −6,9, - 6,7 e -7,1 kcal / mol. De acordo com dados in-vitro, o resveratrol reduziu os osteoclastos após o tratamento de macrófagos derivados da medula óssea [Bone Marrow derived Macrophage (BMM)] com fator estimulador de colônias de macrófagos [Macrophage Colony-Stimulating Factor (MCSF)] 20ng / ml e RANKL 50ng / ml, com diferentes concentrações de resveratrol (2,5, 10 μg / ml). Durante sete dias, as células foram tratadas com MCSF (20 ng / ml) e RANKL (40 ng / ml) juntamente com éter trimetílico concentrado e resveratrol (2,5, 10 μg / ml) em 12 horas, processo que não afeta a sobrevivência celular. Após a fixação de células de osteoclastos com fixador de formaldeído em lamela de vidro seguido de incubação com 0,1% Triton X-100 em PBS por 5 min, foi realizado posteriormente o procedimento para corar com rodamina faloidina a actina e Hoechst os núcleos. A microscopia de fluorescência foi realizada para ver a distribuição dos filamentos de actina [F.actina]. Finalmente, o resveratrol reduziu a formação do anel de actina. O resveratrol é o melhor composto bioativo para o preparo de medicamentos contra a perda óssea.(AU)


Sujet(s)
Humains , Ostéoporose/traitement médicamenteux , Resvératrol/pharmacologie , Microscopie de fluorescence
9.
Braz J Biol ; 83: e248024, 2021.
Article de Anglais | MEDLINE | ID: mdl-34932613

RÉSUMÉ

By applying the in-silico method, resveratrol was docked on those proteins which are responsible for bone loss. The Molecular docking data between the resveratrol and Receptor activator of nuclear factor-kappa-Β ligand [RANKL] receptors proved that resveratrol binds tightly to the receptors, showed the highest binding affinities of -6.9, -7.6, -7.1, -6.9, -6.7, and -7.1 kcal/mol. According to in-vitro data, Resveratrol reduced the osteoclasts after treating Marrow-Derived Macrophages [BMM] with Macrophage colony-stimulating factor [MCSF] 20ng / ml and RANKL 50ng / ml, with different concentrations of resveratrol (2.5, 10 µg / ml) For 7 days, the cells were treated with MCSF (20 ng / ml) and RANKL (40 ng / ml) together with concentrated trimethyl ether and resveratrol (2.5, 10 µg / ml) within 12 hours. Which, not affect cell survival. After fixing osteoclast cells with formaldehyde fixative on glass coverslip followed by incubation with 0.1% Triton X-100 in PBS for 5 min and after that stain with rhodamine phalloidin staining for actin and Hoechst for nuclei. Fluorescence microscopy was performed to see the distribution of filaments actin [F.actin]. Finally, resveratrol reduced the actin ring formation. Resveratrol is the best bioactive compound for drug preparation against bone loss.


Sujet(s)
Ostéoclastes , Ligand de RANK , Différenciation cellulaire , Simulation de docking moléculaire , Resvératrol/pharmacologie
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