Keratoconus: mechanisms of development

2017 ◽  
Vol 70 (6) ◽  
pp. 78
Author(s):  
O. Rudkovskaia ◽  
Keyword(s):  
Mechanisms Of Development

Endometrial hyperplasia (Clinical lecture)

2016 ◽  
pp. 10-18 ◽  
Author(s):  
I.B. Vovk ◽  
◽  
N.Е. Gorban ◽  
O.Ju. Borysiuk ◽  
◽  
...  
Keyword(s):  
Key Words ◽  
Hormonal Therapy ◽  
Endometrial Hyperplasia ◽  
Intraepithelial Neoplasia ◽  
Diagnosis And Treatment ◽  
Pathogenetic Mechanisms ◽  
Endometrial Intraepithelial Neoplasia ◽  
Mechanisms Of Development ◽  
Clinical Lecture

In clinical lecture presents modern views of endometrial hyperplasia in terms of practitioner gynecologist. The problems of classification, pathogenetic mechanisms of development of endometrial hyperplasia. Particular attention is paid to modern approaches to diagnosis and treatment of endometrial hyperplasia. Key words: hyperplasia, endometrium, classification, endometrial hyperplasia, endometrial intraepithelial neoplasia, hormonal therapy.

CLINICAL AND NEUROLOGICAL FEATURES OF TRAUMATIC BRAIN DISEASE DURING THE STAGES OF REHABILITATION

2020 ◽  
Vol 3 (1) ◽  
pp. 51-53
Author(s):  
Rano Azizova ◽  
◽  
Umida Shamsiyeva ◽  
Mirzohid Turabbayev ◽  
Begzod Jorayev ◽  
...  
Keyword(s):  
Mechanical Energy ◽  
Pathological Process ◽  
Brain Disease ◽  
Clinical Forms ◽  
Neurological Features ◽  
Mechanisms Of Development ◽  
The Brain

Traumatic brain disease (TBHD) is a pathological process triggered by the damaging effect of mechanical energy on the brain and is characterized — with a variety of clinical forms — by the unity of etiology, pathogenetic and sanogenetic mechanisms of development and outcomes.

Prenatal Hyperhomocysteinemia Disturbs the Mechanisms of Development of the Cerebral Cortex in Rats

2020 ◽  
Vol 56 (7) ◽  
pp. 808-808
Author(s):  
D. S. Vasilev ◽  
A. D. Shcherbitskaia ◽  
N. L. Tumanova ◽  
I. V. Zalozniaia ◽  
N. M. Dubrovskaya
Keyword(s):  
Cerebral Cortex ◽  
Prenatal Hyperhomocysteinemia ◽  
Mechanisms Of Development

COVID-19-associated orthostatic hypotension syndrome: direct and indirect mechanisms of development

2021 ◽  
Vol LIII (3) ◽  
pp. 64-70
Author(s):  
Elena G. Mendelevich ◽  
Alsu A. Saifeeva ◽  
Artur I. Kurbanov
Keyword(s):  
Nervous System ◽  
Orthostatic Hypotension ◽  
Clinical Case ◽  
Clinical Observation ◽  
Thrombus Formation ◽  
Correct Diagnosis ◽  
Aim Analysis ◽  
Angiotensin Converting Enzyme 2 ◽  
Mechanisms Of Development ◽  
Near Future

Background. The article presents an observation of the clinical case of orthostatic hypotension that developed after an infection caused by the SARS-CoV-2 virus. The issues of etiology, pathogenesis, diagnosis are outlined. The complexity of diagnosis at the stage of clinical observation is due to the comorbidity of possible mechanisms and the difficulty of determining the primary factor. Taking into account the study of variants of direct and indirect action of this 2019-nCoV, the description of the clinical observation of orthostatic hypotension supplements the data on the spectrum of manifestations of this disease. Aim. Analysis of the clinical case of the development of orthostatic hypotension in the post-acute period of COVID-19. Material. When conducting a literature review on the selected topic, various sources were considered. The search depth was over 7 years. For the recruitment of literature, Internet platforms UpToDate, PubMed, Medscape were used. Russian and foreign sources were studied. Methods. Anamnesis collection, objective research, specialized tests, laboratory and instrumental research methods, study of disease history, literature sources on orthostatic hypotension and the effect of COVID-19 on the autonomic nervous system. Results. The analysis of this case with the determination of the leading mechanism of orthostatic hypotension is extremely difficult. Probably, there is a combination of factors: direct and indirect effects on the nervous system at COVID-19. The direct effect is associated with the interaction of the virus with the angiotensin converting enzyme 2 receptors in the nervous system, which causes a significant increase in the concentration of bradykinin and the development of hypotension. An indirect effect is due to both increased thrombus formation with the development of PE, and autonomic dysfunction, within the framework of secondary polyneuropathy of fine fibers. Conclusion. It is likely that in the near future the number of such patients in the practice of doctors will increase, therefore, timely and correct diagnosis of these conditions, with their careful management, will be the fundamental postulates in the recovery of patients. Drawing attention to this topic will possibly expand our understanding of the spectrum of complications of COVID-19 and will greatly complement the information available today.

Formation of Structure of HVOF Sprayed WC-Co Coating on a Copper Substrate

1997 ◽  
Author(s):  
V.V. Sobolev ◽  
J.M. Guilemany ◽  
J.A. Calero
Keyword(s):  
Crystalline Structure ◽  
Substrate Surface ◽  
Copper Substrate ◽  
Interfacial Region ◽  
Solidification Velocity ◽  
Spray Parameters ◽  
Hvof Spraying ◽  
Mechanisms Of Development ◽  
Oxygen Fuel ◽  
Cooling Velocity

Abstract Mathematical modelling of the formation of the WC-Co coating structure and adhesion on copper substrate during high velocity oxygen-fuel (HVOF) spraying is provided. Smooth (polished) and rough (grit blasted) substrates are considered. Variations of solidification time, solidification velocity, thermal gradient, and cooling velocity in the coating and substrate interfacial region are studied. Formation of the amorphous and crystalline structures in the coating and of the crystalline structure in the substrate interfacial region is investigated. Behaviour of the crystal size and intercrystalline distance with respect to the thermal spray parameters and morphology of the substrate surface is analysed. Optimal conditions for the development of fine and dense crystalline structure are determined. Mechanical and thermal mechanisms of development of the substrate-coating adhesion are discussed. Results obtained agree well with experimental data.

scholarly journals The Anatomy, Development, and Evolution of the Atrioventricular Conduction Axis

2018 ◽  
Vol 5 (3) ◽  
pp. 44 ◽  
Author(s):  
Robert Anderson ◽  
Shumpei Mori ◽  
Diane Spicer ◽  
Damian Sanchez-Quintana ◽  
Bjarke Jensen
Keyword(s):  
Atrioventricular Node ◽  
Atrioventricular Conduction ◽  
Significant Part ◽  
Current Understanding ◽  
Ventricular Activation ◽  
Mechanisms Of Development ◽  
Development And Evolution

It is now well over 100 years since Sunao Tawara clarified the location of the axis of the specialised myocardium responsible for producing coordinated ventricular activation. Prior to that stellar publication, controversies had raged as to how many bundles crossed the place of the atrioventricular insulation as found in mammalian hearts, as well as the very existence of the bundle initially described by Wilhelm His Junior. It is, perhaps surprising that controversies continue, despite the multiple investigations that have taken place since the publication of Tawara’s monograph. For example, we are still unsure as to the precise substrates for the so-called slow and fast pathways into the atrioventricular node. Much has been done, nonetheless, to characterise the molecular make-up of the specialised pathways, and to clarify their mechanisms of development. Of this work itself, a significant part has emanated from the laboratory coordinated for a quarter of a century by Antoon FM Moorman. In this review, which joins the others in recognising the value of his contributions and collaborations, we review our current understanding of the anatomy, development, and evolution of the atrioventricular conduction axis.

Sign in / Sign up

Export Citation Format

Share Document