The importance of prolonged functional stress of the nervous system in the development of lipoidosis in the aorta and myocardial lesions in rabbits

1961 ◽  
Vol 51 (5) ◽  
pp. 549-554
Author(s):  
P. S. Khomulo
Keyword(s):  
Nervous System ◽  
Functional Stress ◽  
Myocardial Lesions

scholarly journals Varicocele as a manifestation of connective tissue dysplasia

2019 ◽  
Vol 9 (2) ◽  
pp. 11-16
Author(s):  
Anton Ju. Tsukanov ◽  
Sofija P. Semikina ◽  
Ruslan F. Mustafayev
Keyword(s):  
Nervous System ◽  
Connective Tissue ◽  
The Other ◽  
Body Type ◽  
Male Population ◽  
Predisposing Factor ◽  
Different Types ◽  
Connective Tissue Dysplasia ◽  
Entire Male ◽  
Myocardial Lesions

Varicocele is spread in 35% of men with primary infertility and in 70-81% of men with secondary infertility, being common in 15% of the entire male population. The prevalence and recurrence of varicocele are relevant for investigating of the underlying etiological mechanisms of this disease. Objective: to evaluate the prevalence of connective tissue dysplasia in patients with varicocele. Materials and methods. A clinical study is conducted in 148 patients with varicocele. A generally accepted minor congenital anatomical abnormalities were discovered during the examination. Electrocardiography, intervalography and echocardiography were provided among all patients. Results. 129 people (87.2%) of the examined patients with varicocele had connective tissue dysplasia. The most frequent manifestations of connective tissue dysplasia are: malformation of ear pavilion (90.5%), asthenic body type (79.2%), disturbed occlusion and tooth growth (52.7%), arterial hypotension (47.3%). In the vast majority of cases (104 people, 70.2%) electrocardiograms of 148 patients with varicocele demonstrated different types of arrhythmia. In intervalography it was found that in half of the cases (83 patients, 56.1%) patients had disorders of the autonomic nervous system. During the regular echocardiography only 32 people (21.6%) didn’t have any heart disease, on the other hand valvular and myocardial lesions were diagnosed in other patients. Conclusions. The deficiency of mesenchymal structures within the connective tissue dysplasia in varicocele is a systemic predisposing factor and requires a more in-depth examination of the cardiovascular system in such patients.

Neurotropic enteroviruses co-opt “fair-weather-friend” commensal gut microbiota to drive host infection and central nervous system disturbances

2019 ◽  
Vol 42 ◽  
Author(s):  
Kevin B. Clark
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Gut Bacteria ◽  
Infection Cycle ◽  
Fair Weather ◽  
Host Health ◽  
Microbe Interactions ◽  
Animal Hosts ◽  
Host Infection ◽  
Neuropsychiatric Conditions

Abstract Some neurotropic enteroviruses hijack Trojan horse/raft commensal gut bacteria to render devastating biomimicking cryptic attacks on human/animal hosts. Such virus-microbe interactions manipulate hosts’ gut-brain axes with accompanying infection-cycle-optimizing central nervous system (CNS) disturbances, including severe neurodevelopmental, neuromotor, and neuropsychiatric conditions. Co-opted bacteria thus indirectly influence host health, development, behavior, and mind as possible “fair-weather-friend” symbionts, switching from commensal to context-dependent pathogen-like strategies benefiting gut-bacteria fitness.

An electron microscopic study of the intra-myocardial lesions in cases of acute myocardial infarction

1978 ◽  
Vol 36 (2) ◽  
pp. 484-485
Author(s):  
Masahiro Ono ◽  
Kaoru Aihara ◽  
Gompachi Yajima
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Coronary Vessels ◽  
Vascular Wall ◽  
Vascular Changes ◽  
Electron Microscopic ◽  
Main Trunk ◽  
Mechanical Destruction ◽  
Transmission Electron ◽  
Myocardial Lesions

The pathogenesis of the arteriosclerosis in the acute myocardial infarction is the matter of the extensive survey with the transmission electron microscopy in experimental and clinical materials. In the previous communication,the authors have clarified that the two types of the coronary vascular changes could exist. The first category is the case in which we had failed to observe no occlusive changes of the coronary vessels which eventually form the myocardial infarction. The next category is the case in which occlusive -thrombotic changes are observed in which the myocardial infarction will be taken placed as the final event. The authors incline to designate the former category as the non-occlusive-non thrombotic lesions. The most important findings in both cases are the “mechanical destruction of the vascular wall and imbibition of the serous component” which are most frequently observed at the proximal portion of the coronary main trunk.

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.

Neuron-glia relationship during the early postembryonic development of the nervous system in some oligochaetes

1978 ◽  
Vol 36 (2) ◽  
pp. 600-601
Author(s):  
Wiktor Djaczenko ◽  
Carmen Calenda Cimmino
Keyword(s):  
Nervous System ◽  
Glial Cells ◽  
Early Period ◽  
Postembryonic Development ◽  
Ruthenium Red ◽  
The Body ◽  
Tubifex Tubifex ◽  
Growth Stages ◽  
Cell Processes ◽  
Cytoplasmic Processes

The simplicity of the developing nervous system of oligochaetes makes of it an excellent model for the study of the relationships between glia and neurons. In the present communication we describe the relationships between glia and neurons in the early periods of post-embryonic development in some species of oligochaetes.Tubifex tubifex (Mull. ) and Octolasium complanatum (Dugès) specimens starting from 0. 3 mm of body length were collected from laboratory cultures divided into three groups each group fixed separately by one of the following methods: (a) 4% glutaraldehyde and 1% acrolein fixation followed by osmium tetroxide, (b) TAPO technique, (c) ruthenium red method.Our observations concern the early period of the postembryonic development of the nervous system in oligochaetes. During this period neurons occupy fixed positions in the body the only observable change being the increase in volume of their perikaryons. Perikaryons of glial cells were located at some distance from neurons. Long cytoplasmic processes of glial cells tended to approach the neurons. The superimposed contours of glial cell processes designed from electron micrographs, taken at the same magnification, typical for five successive growth stages of the nervous system of Octolasium complanatum are shown in Fig. 1. Neuron is designed symbolically to facilitate the understanding of the kinetics of the growth process.

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