Further Observations on Experimental Toxi-Infection of the Central Nervous System

1918 ◽  
Vol 64 (264) ◽  
pp. 18-29
Author(s):  
David Orr ◽  
Rows
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Experimental Work ◽  
Abdominal Cavity ◽  
The Central Nervous System ◽  
Series Of Experiments

This communication is a continuation of our experimental work on the action of bacterial poisons upon the nervous system.In 1914 (2), after several series of experiments, we drew attention to the differences between lymphogenous and haematogenous infection. The first was induced by infecting the ascending lymph stream of nerves ; the second by placing celloidin capsules containing a culture of bacteria in the abdominal cavity.

scholarly journals Biological Chemistry in Intermediate Lipid Metabolism Disorder

2019 ◽  
Vol 70 (7) ◽  
pp. 2647-2651
Author(s):  
Alina Plesea Condratovici ◽  
Alina Mihaela Elisei ◽  
Decebal Vasincu ◽  
Iulian Dan Cuciureanu ◽  
Aurel Nechita ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Central Nervous System ◽  
Nervous System ◽  
Abdominal Cavity ◽  
Intestinal Wall ◽  
Pathological Process ◽  
The Body ◽  
Lipid Metabolism Disorder ◽  
Fat Deposits ◽  
The Central Nervous System

Any pathological process is accompanied by quantitative and qualitative changes in metabolism, which is the main form of life manifestation. Metabolism disorders (it is the permanent exchange of substances between the body and the environment) arise if the activity of the central nervous system is affected; the trophic function of the nervous system directs nutrition and metabolism. In this function, the coordinating role belongs to the central nervous system and is made by means of the endocrine glands. Lipids introduced into the body are digested mainly with the help of the pancreatic and intestinal juice and are resorbed through the walls of the small intestine. Even in the intestinal wall, the re-synthesis of fatty acids and glycerine fat occurs. A certain amount of neutral fat is probably resorbed without being split into fatty acids and glycerine. Fats are mainly resorbed through the lymphatic system, in part (about 30%) by means of the portal vein system; the entire fat emulsion penetrates into the blood and its main mass is deposited in certain fat deposits: the adipose subcutaneous cell tissue, the epiploon and the mesenterium of the abdominal cavity, as well as in the fatty layers of the various organs. In fat deposits, processes of lipid formation from carbohydrates and of transformation of higher fatty acids can occur. Lipids from fat deposits are subject to oxidation, especially at the liver level.

scholarly journals Pharmacological targeting of Tripartite Motif Containing 24 for the treatment of glioblastoma

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Mingzhi Han ◽  
Yanfei Sun
Keyword(s):  
Stem Cells ◽  
Central Nervous System ◽  
Nervous System ◽  
Cancer Progression ◽  
Therapeutic Strategies ◽  
Tripartite Motif ◽  
The Central Nervous System ◽  
Series Of Experiments ◽  
Cell Propagation ◽  
Insight Into

AbstractGlioblastoma (GBM) is the most aggressive brain tumor of the central nervous system. Recent studies have reported the crucial functions of Tripartite Motif Containing 24 (TRIM24) in promoting cancer progression of GBM. However, it remains unclear if TRIM24 is an attractive druggable target for therapeutic intervention in GBM. We therefore performed a series of experiments, aiming to verify whether specific TRIM24 inhibition suppresses GBM malignant functions using dTRIM24 and IACS-9571, two novel selective TRIM24 antagonists. Our data showed that TRIM24 inhibitors serve as effective agents for inhibiting cell propagation and invasion of several patient-derived GBM stem cells (GSCs), and these effects are mediated partially through suppression of the TRIM24-SOX2 axis. This study provides novel insight into the TRIM24-based druggable dependencies, important for developing effective therapeutic strategies for brain tumors.

The reactions of the urinary bladder of the cat under conditions of constant volume

1940 ◽  
Vol 128 (851) ◽  
pp. 186-201 ◽  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Constant Pressure ◽  
General Arrangement ◽  
The Central Nervous System ◽  
Series Of Experiments ◽  
Urethane Anaesthesia ◽  
Set Up ◽  
Sudden Transition ◽  
Decerebrate Cats

A description of the reactions of the bladder of the cat under conditions of constant pressure has already been given (Mellanby and Pratt 1939). Numerous workers have obtained records of variations in pressure in the bladder of the cat under approximately isometric conditions, whilst examining the influence of the central nervous system on the process of micturition. However, a clear distinction between the isotonic and isometric states with respect to the bladder has not been generally observed. The experiments described in this paper were undertaken in order to study the effects of the changed conditions set up in the bladder when the volume of the bladder is kept fixed, especially after a period during which the pressure is kept fixed, and the volume allowed to fluctuate. In particular, the striking response to a sudden transition from the isotonic to the isometric state has been investigated. The apparatus used was that described in the previous paper, with the addition of a narrow-bore recording manometer filled with mercury. The general arrangement is illustrated in figure 1. With the stopcock open and the contents of the bladder therefore in communication with the contents of the reservoir, the manometer records the fixed hydrostatic pressure imposed upon the bladder by the level of the fluid in the reservoir. Closing the stopcock disconnects the reservoir from the bladder, and the manometer then records any fluctuations in pressure in the bladder. With such an arrangement it is possible to make a practically instantaneous change from the isotonic to the isometric state, or vice versa, without disturbing the preparation. Cats under chloralose or urethane anaesthesia were used for most of the experiments. A series of experiments was also performed upon decerebrate cats.

Effects of Hyperoxia on Lung Utrastructure

1970 ◽  
Vol 28 ◽  
pp. 26-27
Author(s):  
Gladys Harrison
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Light Microscopy ◽  
Oxygen Effects ◽  
Age Dependent ◽  
The Central Nervous System ◽  
The Subject ◽  
Space Age ◽  
Alveolar Septa ◽  
Extensive Damage

With the advent of the space age and the need to determine the requirements for a space cabin atmosphere, oxygen effects came into increased importance, even though these effects have been the subject of continuous research for many years. In fact, Priestly initiated oxygen research when in 1775 he published his results of isolating oxygen and described the effects of breathing it on himself and two mice, the only creatures to have had the “privilege” of breathing this “pure air”.Early studies had demonstrated the central nervous system effects at pressures above one atmosphere. Light microscopy revealed extensive damage to the lungs at one atmosphere. These changes which included perivascular and peribronchial edema, focal hemorrhage, rupture of the alveolar septa, and widespread edema, resulted in death of the animal in less than one week. The severity of the symptoms differed between species and was age dependent, with young animals being more resistant.

Emigration of neutrophils in the central nervous system

1983 ◽  
Vol 41 ◽  
pp. 788-789
Author(s):  
John L.Beggs ◽  
John D. Waggener ◽  
Wanda Miller ◽  
Jane Watkins
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Osmium Tetroxide ◽  
White Blood Cells ◽  
Arterial Perfusion ◽  
E Coli ◽  
Intracisternal Injection ◽  
The Central Nervous System ◽  
Brain And Spinal Cord ◽  
Interendothelial Junctions

Studies using mesenteric and ear chamber preparations have shown that interendothelial junctions provide the route for neutrophil emigration during inflammation. The term emigration refers to the passage of white blood cells across the endothelium from the vascular lumen. Although the precise pathway of transendo- thelial emigration in the central nervous system (CNS) has not been resolved, the presence of different physiological and morphological (tight junctions) properties of CNS endothelium may dictate alternate emigration pathways.To study neutrophil emigration in the CNS, we induced meningitis in guinea pigs by intracisternal injection of E. coli bacteria.In this model, leptomeningeal inflammation is well developed by 3 hr. After 3 1/2 hr, animals were sacrificed by arterial perfusion with 3% phosphate buffered glutaraldehyde. Tissues from brain and spinal cord were post-fixed in 1% osmium tetroxide, dehydrated in alcohols and propylene oxide, and embedded in Epon. Thin serial sections were cut with diamond knives and examined in a Philips 300 electron microscope.

Mammalian Bone Marrow Acetylcholinesterase

1982 ◽  
Vol 40 ◽  
pp. 44-45
Author(s):  
Ezzatollah Keyhani
Keyword(s):  
Central Nervous System ◽  
Bone Marrow ◽  
Nervous System ◽  
Common Property ◽  
Extracellular Medium ◽  
The Central Nervous System ◽  
The Common ◽  
Mammalian Bone

Acetylcholinesterase (EC 3.1.1.7) (ACHE) has been localized at cholinergic junctions both in the central nervous system and at the periphery and it functions in neurotransmission. ACHE was also found in other tissues without involvement in neurotransmission, but exhibiting the common property of transporting water and ions. This communication describes intracellular ACHE in mammalian bone marrow and its secretion into the extracellular medium.

Glucuronyl 3-sulfate occurs exclusively on distal unmyelinated terminals of selected sensory neurons in the peripheral nervous system

1995 ◽  
Vol 53 ◽  
pp. 958-959
Author(s):  
S.S. Spicer ◽  
B.A. Schulte
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Cerebral Cortex ◽  
Peripheral Nervous System ◽  
Sensory Neurons ◽  
Sensory Nerves ◽  
Tissue Antigens ◽  
The Central Nervous System ◽  
The Brain ◽  
Leu 7

Generation of monoclonal antibodies (MAbs) against tissue antigens has yielded several (VC1.1, HNK- 1, L2, 4F4 and anti-leu 7) which recognize the unique sugar epitope, glucuronyl 3-sulfate (Glc A3- SO4). In the central nervous system, these MAbs have demonstrated Glc A3-SO4 at the surface of neurons in the cerebral cortex, the cerebellum, the retina and other widespread regions of the brain.Here we describe the distribution of Glc A3-SO4 in the peripheral nervous system as determined by immunostaining with a MAb (VC 1.1) developed against antigen in the cat visual cortex. Outside the central nervous system, immunoreactivity was observed only in peripheral terminals of selected sensory nerves conducting transduction signals for touch, hearing, balance and taste. On the glassy membrane of the sinus hair in murine nasal skin, just deep to the ringwurt, VC 1.1 delineated an intensely stained, plaque-like area (Fig. 1). This previously unrecognized structure of the nasal vibrissae presumably serves as a tactile end organ and to our knowledge is not demonstrable by means other than its selective immunopositivity with VC1.1 and its appearance as a densely fibrillar area in H&E stained sections.

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