Minimally Invasive Approach to Renal Artery Using Different Types of Catheter by Conventional Radiology

Background: Several routes of administration have been used for cell and gene therapy delivery in kidney disease in the last years. Moreover, a more homogenous distribution and a higher response was observed when administered intra-arterially. The main objective of the present study was to describe and to compare the use of Fogarty thru-lumen embolectomy catheter with angiographic catheter through the femoral artery by using conventional radiology as a guide.Materials, Methods & Results: Seven healthy dogs were used in these experiments. First, a Fogarty thru-lumen embolectomy catheter was introduced followed by an angiographic catheter. The primary outcome was the number of attempts for the placement of the introducer and the number of radiographic studies to carry out nephrography. Preceding the surgical procedure, ultrasonographic evaluation was performed in all animals in order to measure the diameter of the left and right femoral arteries, left and right renal and abdominal aorta at the renal level. After trichotomy and antisepsis of the medial face of the two pelvic limbs, the 6F valve introducer was placed based on the modified Seldinger technique. Thereafter, aortography was performed, showing its collateral arteries, with contrast injection, and it was estimated how much of the Fogarty 5,5F catheter had to be introduced. Subsequently, a guidewire was inserted throu

Minimally Invasive Approach to Renal Artery Using Different Types of Catheter by Conventional Radiology

Background: Several routes of administration have been used for cell and gene therapy delivery in kidney disease in the last years. Moreover, a more homogenous distribution and a higher response was observed when administered intra-arterially. The main objective of the present study was to describe and to compare the use of Fogarty thru-lumen embolectomy catheter with angiographic catheter through the femoral artery by using conventional radiology as a guide.Materials, Methods & Results: Seven healthy dogs were used in these experiments. First, a Fogarty thru-lumen embolectomy catheter was introduced followed by an angiographic catheter. The primary outcome was the number of attempts for the placement of the introducer and the number of radiographic studies to carry out nephrography. Preceding the surgical procedure, ultrasonographic evaluation was performed in all animals in order to measure the diameter of the left and right femoral arteries, left and right renal and abdominal aorta at the renal level. After trichotomy and antisepsis of the medial face of the two pelvic limbs, the 6F valve introducer was placed based on the modified Seldinger technique. Thereafter, aortography was performed, showing its collateral arteries, with contrast injection, and it was estimated how much of the Fogarty 5,5F catheter had to be introduced. Subsequently, a guidewire was inserted throu

Minimally Invasive Approach to Renal Artery Using Different Types of Catheter by Conventional Radiology

Background: Several routes of administration have been used for cell and gene therapy delivery in kidney disease in the last years. Moreover, a more homogenous distribution and a higher response was observed when administered intra-arterially. The main objective of the present study was to describe and to compare the use of Fogarty thru-lumen embolectomy catheter with angiographic catheter through the femoral artery by using conventional radiology as a guide.Materials, Methods & Results: Seven healthy dogs were used in these experiments. First, a Fogarty thru-lumen embolectomy catheter was introduced followed by an angiographic catheter. The primary outcome was the number of attempts for the placement of the introducer and the number of radiographic studies to carry out nephrography. Preceding the surgical procedure, ultrasonographic evaluation was performed in all animals in order to measure the diameter of the left and right femoral arteries, left and right renal and abdominal aorta at the renal level. After trichotomy and antisepsis of the medial face of the two pelvic limbs, the 6F valve introducer was placed based on the modified Seldinger technique. Thereafter, aortography was performed, showing its collateral arteries, with contrast injection, and it was estimated how much of the Fogarty 5,5F catheter had to be introduced. Subsequently, a guidewire was inserted throu

Minimally Invasive Approach to Renal Artery Using Different Types of Catheter by Conventional Radiology

Background: Several routes of administration have been used for cell and gene therapy delivery in kidney disease in the last years. Moreover, a more homogenous distribution and a higher response was observed when administered intra-arterially. The main objective of the present study was to describe and to compare the use of Fogarty thru-lumen embolectomy catheter with angiographic catheter through the femoral artery by using conventional radiology as a guide.Materials, Methods & Results: Seven healthy dogs were used in these experiments. First, a Fogarty thru-lumen embolectomy catheter was introduced followed by an angiographic catheter. The primary outcome was the number of attempts for the placement of the introducer and the number of radiographic studies to carry out nephrography. Preceding the surgical procedure, ultrasonographic evaluation was performed in all animals in order to measure the diameter of the left and right femoral arteries, left and right renal and abdominal aorta at the renal level. After trichotomy and antisepsis of the medial face of the two pelvic limbs, the 6F valve introducer was placed based on the modified Seldinger technique. Thereafter, aortography was performed, showing its collateral arteries, with contrast injection, and it was estimated how much of the Fogarty 5,5F catheter had to be introduced. Subsequently, a guidewire was inserted throu

Minimally Invasive Approach to Renal Artery Using Different Types of Catheter by Conventional Radiology

Background: Several routes of administration have been used for cell and gene therapy delivery in kidney disease in the last years. Moreover, a more homogenous distribution and a higher response was observed when administered intra-arterially. The main objective of the present study was to describe and to compare the use of Fogarty thru-lumen embolectomy catheter with angiographic catheter through the femoral artery by using conventional radiology as a guide.Materials, Methods & Results: Seven healthy dogs were used in these experiments. First, a Fogarty thru-lumen embolectomy catheter was introduced followed by an angiographic catheter. The primary outcome was the number of attempts for the placement of the introducer and the number of radiographic studies to carry out nephrography. Preceding the surgical procedure, ultrasonographic evaluation was performed in all animals in order to measure the diameter of the left and right femoral arteries, left and right renal and abdominal aorta at the renal level. After trichotomy and antisepsis of the medial face of the two pelvic limbs, the 6F valve introducer was placed based on the modified Seldinger technique. Thereafter, aortography was performed, showing its collateral arteries, with contrast injection, and it was estimated how much of the Fogarty 5,5F catheter had to be introduced. Subsequently, a guidewire was inserted throu

CÉLULAS-TRONCO MESENQUIMAIS ADULTAS: CARACTERÍSTICAS E APLICAÇÕES EXPERIMENTAIS EM ANIMAIS

As células-tronco mesenquimais (CTMs) adultas são células-tronco somáticas presentes em pequenas quantidades em regiões perivasculares de todos os tecidos adultos, incluindo a medula óssea (MO), o tecido adiposo, o periósteo, o tecido muscular e os órgãos parenquimatosos. Por ser o tecido mais utilizado e caracterizado para o estudo das propriedades das células-tronco e por ter sido o primeiro empregado em terapia celular, a medula óssea é um dos principais tecidos para a obtenção de CTMs. Estudos contemporâneos vêm sendo realizados, descrevendo a utilização alógena e autógena das MSC para a reparação de diversos tecidos. Além da terapia celular em animais domésticos, sua importância em Medicina Veterinária deve-se também à geração de modelos experimentais aplicáveis a paciente humanos. A presente revisão objetivou trazer as características e os usos atuais das MSCs adultas derivadas da MO, do tecido adiposo e polpa dentária, bem como os protocolos laboratoriais e experimentos in vivo desenvolvidos em um laboratório de cirurgia experimental visando a aplicação destas células em pacientes veterinários e a pesquisa translacional.

CÉLULAS-TRONCO MESENQUIMAIS ADULTAS: CARACTERÍSTICAS E APLICAÇÕES EXPERIMENTAIS EM ANIMAIS

As células-tronco mesenquimais (CTMs) adultas são células-tronco somáticas presentes em pequenas quantidades em regiões perivasculares de todos os tecidos adultos, incluindo a medula óssea (MO), o tecido adiposo, o periósteo, o tecido muscular e os órgãos parenquimatosos. Por ser o tecido mais utilizado e caracterizado para o estudo das propriedades das células-tronco e por ter sido o primeiro empregado em terapia celular, a medula óssea é um dos principais tecidos para a obtenção de CTMs. Estudos contemporâneos vêm sendo realizados, descrevendo a utilização alógena e autógena das MSC para a reparação de diversos tecidos. Além da terapia celular em animais domésticos, sua importância em Medicina Veterinária deve-se também à geração de modelos experimentais aplicáveis a paciente humanos. A presente revisão objetivou trazer as características e os usos atuais das MSCs adultas derivadas da MO, do tecido adiposo e polpa dentária, bem como os protocolos laboratoriais e experimentos in vivo desenvolvidos em um laboratório de cirurgia experimental visando a aplicação destas células em pacientes veterinários e a pesquisa translacional.

Células-tronco mesenquimais adultas: características e aplicações experimentais em animais

As células-tronco mesenquimais (CTMs) adultas são células-tronco somáticas presentes em pequenas quantidades em regiões perivasculares de todos os tecidos adultos, incluindo a medula óssea (MO), o tecido adiposo, o periósteo, o tecido muscular e os órgãos parenquimatosos. Por ser o tecido mais utilizado e caracterizado para o estudo das propriedades das células-tronco e por ter sido o primeiro empregado em terapia celular, a medula óssea é um dos principais tecidos para a obtenção de CTMs. Estudos contemporâneos vêm sendo realizados, descrevendo a utilização alógena e autógena das MSC para a reparação de diversos tecidos. Além da terapia celular em animais domésticos, sua importância em Medicina Veterinária deve-se também à geração de modelos experimentais aplicáveis a paciente humanos. A presente revisão objetivou trazer as características e os usos atuais das MSCs adultas derivadas da MO, do tecido adiposo e polpa dentária, bem como os protocolos laboratoriais e experimentos in vivo desenvolvidos em um laboratório de cirurgia experimental visando a aplicação destas células em pacientes veterinários e a pesquisa translacional.

Células-tronco mesenquimais adultas: características e aplicações experimentais em animais

As células-tronco mesenquimais (CTMs) adultas são células-tronco somáticas presentes em pequenas quantidades em regiões perivasculares de todos os tecidos adultos, incluindo a medula óssea (MO), o tecido adiposo, o periósteo, o tecido muscular e os órgãos parenquimatosos. Por ser o tecido mais utilizado e caracterizado para o estudo das propriedades das células-tronco e por ter sido o primeiro empregado em terapia celular, a medula óssea é um dos principais tecidos para a obtenção de CTMs. Estudos contemporâneos vêm sendo realizados, descrevendo a utilização alógena e autógena das MSC para a reparação de diversos tecidos. Além da terapia celular em animais domésticos, sua importância em Medicina Veterinária deve-se também à geração de modelos experimentais aplicáveis a paciente humanos. A presente revisão objetivou trazer as características e os usos atuais das MSCs adultas derivadas da MO, do tecido adiposo e polpa dentária, bem como os protocolos laboratoriais e experimentos in vivo desenvolvidos em um laboratório de cirurgia experimental visando a aplicação destas células em pacientes veterinários e a pesquisa translacional.

Marcadores fluorescentes coloidais: conceitos e aplicações

The nanocrystals are quantum dots and semiconductors in aqueous solution. They have been responsible for a large volume of research, either within the basic science and which can be applied in diverse fields such as luminescent probe, among them biotechnology. The field of these quantum dots methodologies is the first and fundamental step for future applications as biomarkers in biological systems in vitro and in vivo, due to advantages over organic fluorophores. This article aims to conduct a review of biological markers nanocrystals and their importance in biological research.

Os nanocristais coloidas ou quantum dots são pontos quânticos e semicondutores na forma coloidal. Eles têm sido responsáveis por um grande volume de pesquisas, seja no âmbito da ciência básica ou aplicações em campos diversos como sonda luminescente, dentre eles a biotecnologia. O domínio das metodologias desses pontos quânticos é o primeiro e fundamental passo para futuras aplicações como biomarcadores em sistemas biológicos, in vitro e in vivo, devido a vantagens em relação aos fluoróforos orgânicos. O objetivo deste artigo é realizar uma breve revisão sobre marcadores biológicos nanocristais e sua importância nas pesquisas biológicas.

Marcadores fluorescentes coloidais: conceitos e aplicações

The nanocrystals are quantum dots and semiconductors in aqueous solution. They have been responsible for a large volume of research, either within the basic science and which can be applied in diverse fields such as luminescent probe, among them biotechnology. The field of these quantum dots methodologies is the first and fundamental step for future applications as biomarkers in biological systems in vitro and in vivo, due to advantages over organic fluorophores. This article aims to conduct a review of biological markers nanocrystals and their importance in biological research.

Os nanocristais coloidas ou quantum dots são pontos quânticos e semicondutores na forma coloidal. Eles têm sido responsáveis por um grande volume de pesquisas, seja no âmbito da ciência básica ou aplicações em campos diversos como sonda luminescente, dentre eles a biotecnologia. O domínio das metodologias desses pontos quânticos é o primeiro e fundamental passo para futuras aplicações como biomarcadores em sistemas biológicos, in vitro e in vivo, devido a vantagens em relação aos fluoróforos orgânicos. O objetivo deste artigo é realizar uma breve revisão sobre marcadores biológicos nanocristais e sua importância nas pesquisas biológicas.

Marcadores fluorescentes coloidais: conceitos e aplicações

The nanocrystals are quantum dots and semiconductors in aqueous solution. They have been responsible for a large volume of research, either within the basic science and which can be applied in diverse fields such as luminescent probe, among them biotechnology. The field of these quantum dots methodologies is the first and fundamental step for future applications as biomarkers in biological systems in vitro and in vivo, due to advantages over organic fluorophores. This article aims to conduct a review of biological markers nanocrystals and their importance in biological research.

Os nanocristais coloidas ou quantum dots são pontos quânticos e semicondutores na forma coloidal. Eles têm sido responsáveis por um grande volume de pesquisas, seja no âmbito da ciência básica ou aplicações em campos diversos como sonda luminescente, dentre eles a biotecnologia. O domínio das metodologias desses pontos quânticos é o primeiro e fundamental passo para futuras aplicações como biomarcadores em sistemas biológicos, in vitro e in vivo, devido a vantagens em relação aos fluoróforos orgânicos. O objetivo deste artigo é realizar uma breve revisão sobre marcadores biológicos nanocristais e sua importância nas pesquisas biológicas.