Asunto(s)
Cirugía General , Hospitales Militares , Hospitales Públicos , Guerra , Historia del Siglo XIX , Rusia (pre-1917)Asunto(s)
Historia del Siglo XIX , Hospitales Militares , Medicina Militar , Rusia (pre-1917) , GuerraRESUMEN
Dimentions of the renal corpuscle, proximal and distal convoluted tubules have been studied in the dog kidney, normal and the morphofunctional state of the organ after cutting and ligation of its different lymphatic vessels (4 series of experiments in 158 dogs). The observations have been performed in 0.5, 1, 3, 10-160 days of the experiments. Histological, histochemical and morphometrical methods have been applied; the residual nitrogen in blood has been determined. During early stages, disturbances in the pathways of lymph outflow result in development of edema and albumin saturation of interstitium. granular distrophy of convoluted tubules epithelium in the kidneys. In 40-160 days stromal diffuse sclerosis of the medullary substance develops. The changes described and deterioration of the nitrogen-excretory function of the organ are especially pronounced after the disturbance in the pathways of lymph outflow are combined with a simultaneous extirpation of the contralateral kidney. Under these conditions the processes of the renal compensatory hypertrophy slow down. The morphofunctional changes after the disturbance in the pathways of lymph outflow from the compensatory hypertrophied kidney are the least pronounced.
Asunto(s)
Enfermedades Renales/patología , Riñón/cirugía , Sistema Linfático/cirugía , Animales , Perros , Riñón/anatomía & histología , Riñón/metabolismo , Riñón/patología , Sistema Linfático/anatomía & histología , Microscopía Electrónica , Nitrógeno/metabolismo , Complicaciones Posoperatorias/patologíaRESUMEN
The size of the renal body in convoluted parts of proximal and distal nephrons has been studied in normal dogs and after section and ligation of the efferent lymphatic vessels in 4 series of experiments (167 dogs). Observations have been made 12 h, 3 and 10-160 d after the operation. Histological, histochemical and morphometric methods have been applied; the level of residual nitrogen has been estimated. In early days of the experiment, the disturbance in lymph drainage has been found to result in edema and albuminous saturation of the connective tissue stroma, granular distrophy of epithelium in the convoluted tubules of the kidney. After 40-160 d of the experiment, diffuse sclerosis of the connective tissue stroma of the medullar substance and of pyramids develops. Alterations and disorders in the organ's function on nitrogen discharge are especially pronounced when lymph drainage is disturbed in one kidney, and the other kidney is removed. In such a case, the processes of compensatory hypertrophy are delayed. Morpho-functional alterations are less pronounced after lymph drainage disorders in the compensatory hypertrophic kidney.
Asunto(s)
Edema/patología , Enfermedades Renales/patología , Sistema Linfático/fisiopatología , Animales , Modelos Animales de Enfermedad , Perros , Edema/fisiopatología , Riñón/anatomía & histología , Riñón/metabolismo , Corteza Renal/patología , Enfermedades Renales/fisiopatología , Médula Renal/patología , Ligadura , Sistema Linfático/anatomía & histología , Sistema Linfático/cirugía , Modelos Anatómicos , Nefrectomía , Nitrógeno/metabolismoRESUMEN
The size of the renal body in convoluted parts of proximal and distal nephrons has been studied in normal dogs and after section and ligation of the efferent lymphatic vessels in 4 series of experiments (85 dogs). Observations have been made 12 h, 3 and 10--150 days after the operation. Histological, histochemical and morphometric methods have been applied; the level of residual nitrogen has been estimated. In early days of the experiment, the disturbance in lymph drainage has been found to result in edema and albuminous saturation of the connective tissue stroma, granular distrophy of the epithelium in the convoluted tubules of the kidney. After 40--150 days of the experiment, diffuse sclerosis of the connective tissue stroma of the medullar substance and of the pyramids develops. Alterations and disorders in the organ's function on nitrogen discharge are especially pronounced when lymph drainage is disturbed in one kidney, and the other kidney is removed. In such a case, the processes of compensatory hypertrophy are delayed. Morpho-functional alterations are less pronounced after lymph drainage disorders in the compensatory hypertrophic kidney.
Asunto(s)
Riñón/patología , Enfermedades Linfáticas/patología , Enfermedad Aguda , Animales , Enfermedad Crónica , Perros , Edema , Hipertrofia , Riñón/fisiopatología , Glomérulos Renales/patología , Túbulos Renales Distales/patología , Túbulos Renales Proximales/patología , Enfermedades Linfáticas/fisiopatología , Nefrectomía , Esclerosis , Factores de TiempoRESUMEN
The impregnation methods in total laminated preparations and histological sections were used to study the nervous apparatus of the celiac trunk and its branches in humans of either sex and different age. It consists of milti- and unipolar cells, periadventitial, adventitial and muscular nervous plexuses, separate nerve trunks and plexuses and single myelinated and non-myelinated nerve fibres terminating with non-encapsulated and encapsulated nerve endings.