Stanislav Hristov's research while affiliated with Medical University of Sofia and other places
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Publications (28)
Abstract
The vestibular nuclear complex (VNC) is an intricate structure subdivided
into major and accessory nuclei all with different functions. In general the stud-
ies of the normal ultrastructure of the VNC are few in number. Furthermore,
most data are contradicting and there are a lot of \white spots" in the entire
scientific literature concern...
Unilateral selective cerebral perfusion (SCP) is a method for cerebral protection in aortic arch surgery. However variations of the circle of Willis (CoW) could vitiate its protective effect. The aim of our present work was to make a retrospective analysis of 30 patients, in whom CT angio was performed between January and March 2008. Variations of...
Sexual violence in various forms is prevalent throughout the world, but the most severe physical consequences of such violence occur in children. In assessing the prevalence of sexual violence must take account of social and cultural values of the population of a village, city or country. The use of violence (physical, mental, addiction, etc.) in g...
Introduction: The homicide of e newborn committed by a biological parent within the first 24 hours of life is referred as neonaticide. In the majority of cases of neonaticide the pregnancy was kept a secret and birth was given with no medical assistance. The prevalent causes of deaths of newborns murdered by biological mother are different types of...
Introduction: Cases of autoerotic deaths are relatively rare in the forensic medical practice. They are mostly accidental deaths and are more common among men. In such cases it is crucial to determine the cause and manner of death on the basis of death scene and forensic medical examination of the cadaver. The conclusion should be given after all t...
With the development of technologies for fishing and the affordability of the fishing rods made of light enough and durable materials (carbon fibers, which are conductive) in recent years there are more frequent cases of death among fishermen using such accessories too close to high-voltage power lines. Given to their length such fishing rods may e...
We studied the topographical distribution and morphological characteristics of NADPH-diaphorase-positive neurons and fibers in the human claustrum. These neurons were seen to be heterogeneously distributed throughout the claustrum. Taking into account the size and shape of stained perikarya as well as dendritic and axonal characteristics, Nicotinam...
We are representing a murder case of a two-month old child committed by his mother. She caused a severe closed head trauma by inflicting multiple kicks to the head of the child. After the murder she called her relatives and told them that the child had fallen and had hurt itself, so they took the baby to the hospital, where the doctors just declare...
ABSTRACT
Leucine-enkephalin is a potent and naturally-occurring opioid peptide which serves to inhibit other neurotrans-
mitters involved with pain perception, thereby reducing its emotional and physical impact. Nevertheless, there
is little data in the literature concerning leucine-enkephalin-immunoreactivity (Leu-enk-ir) in the human claus-
trum...
Objectives:
During unilateral selective cerebral perfusion (uSCP), with right axillary artery or brachiocephalic trunk cannulation, the brain receives blood only via the right common carotid artery and right vertebral artery (VA). The left hemisphere is perfused mainly through the circle of Willis (CW). However, at least 50% of individuals have so...
During routine autopsy of a 62-y-old female cadaver, an unusually enlarged frontal sinus was observed. The
sinus was abnormally over-developed in both width and height, as the sinus cavity spreads deeply into the
frontal tubera. Numerous septa divided the sinus cavity. Because of the obvious dilation of the frontal sinus
and the lack of localized b...
Introduction: Retention of surgical instruments in a patient's body after surgery is a rare but potentially dangerous error. Case Report: A case of a nearly 27year long history of a patient with a large metal retractor in the abdominal cavity left accidentally after colorectal surgery is discussed here. Conclusion: In the modern surgical era, repo...
Unilateral selective cerebral perfusion (SCP) is a method for cerebral protection in aortic arch surgery. However, variations of the circle of Willis (CoW) could vitiate its protective effect. The aim of our present work was to prospectively analyze variations of CoW and vertebral arteries using CT angiography. From January, 2008 to July, 2008, a t...
Unilateral selective cerebral perfusion (uSCP) is a method for cerebral protection during arch replacement. Some variations of circle of Willis (CoW) could vitiate its protective effect. The aim of present work is to compare the results from CT angiography of the CoW, obtained with 16- and 320-slices' multidetectors CT scanners. Two-hundred patient...
The transversus thoracis muscle is a thin muscular layer on the inner surface of the anterior thoracic wall that is always in concern during harvesting of the internal thoracic artery. Because the muscle is poorly described in the surgical literature, the aim of the present study is to examine in details its variations.
The data was obtained at sta...
The approaches in research and practical work in the forensic laboratories of DNA profiling in a sexual assault case can be assessed by the individual valuation of the quality and quantity of available DNA and the choice of combination of the STRs loci that have been examined. The applied procedures are classic or modificated extraction, amplificat...
The vestibular nuclear complex (VNC) is a complex structure subdivided into major and accessory nuclei all with different functions. The normal cytoarchitectonics of the VNC of the cat has been studied by many authors. Nevertheless, there are still a lot of contradictions and many "white spots" in the entire scientific literature concerning this is...
The vestibular nuclear complex (VNC) is an intricate structure subdivided into major and accessory nuclei all with different functions. In general the studies of the normal ultrastructure of the VNC are few in number. Furthermore, most data are contradicting and there are a lot of "white spots" in the entire scientifi{dotless}c literature concernin...
The vestibular nuclear complex (VNC) is a complicated structure which is not well enough studied. Most of the data concerning immunocytochemistry of the VNC are contradicting and there are a lot of "white spots" in the entire scientific literature concerning this issue. The aim of the present study was to examine the presence, morphology and distri...
The vestibular nuclear complex (VNC) is an intricate structure subdivided into major and accessory nuclei all with different functions. In general the studies of the normal ultrastructure of the VNC are few in number. Furthermore, most data are contradicting and there are a lot of "white spots" in the entire scientific literature concerning this is...
Nitric oxide is a unique neurotransmitter, which participates in many physiological and pathological processes in the organism. Nevertheless there are little data about the neuronal Nitric Oxide Synthase immunoreactive (nNOS-ir) neurons and fibers in the dorsal claustrum (DC) of a cat. In this respect the aims of this study were: (1) to demonstrate...
During unilateral selective cerebral perfusion (SCP), via cannulation of the brachiocephalic trunk, the brain receives blood only through the right common carotid artery and the right vertebral artery. For perfusion of the contralateral (left) hemisphere it is counted on the competence of the circle of Willis (CoW). It is well known that variations...
The presence of the calcium-binding protein (CaBP) parvalbumin (PV) in the neuronal elements of the cat's dorsal claustrum was studied by immunohistochemistry at the light- and electron-microscopic level. PV-immunoreactive neurons and fibers were detected in all parts of the claustrum. The PV-immunoreactive neurons were divided into several subtype...
Nitric oxide is a unique neurotransmitter, which participates in many physiological and pathological processes in the organism. Nevertheless, there are little data about the neuronal nitric oxide synthase immunoreactivity (nNOS-ir) in the vestibular complex of a cat. In this respect, the aims of this study were to: (1) demonstrate nNOS-ir in the ne...
Citations
... [2] Although this syndrome is relatively well defined, the problem with unregistered and unidentified cases remains, because of the numerous different morphological and clinical manifestations of this type of violence. [3,4] The consequences can be serious and could have a lasting negative effect or a fatal outcome for the victims, as well as negative consequences on society as a whole. Child abuse is often a result of impulsive violent behavior with minimal provocation that may have a fatal outcome. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/272320363233283-1441937642228_Q64/Ilina-Brainova.jpg)
![[object Object]](https://i1.rgstatic.net/ii/profile.image/293976600006657-1447100891121_Q64/Metodi-Goshev.jpg)
![[object Object]](https://i1.rgstatic.net/ii/profile.image/934495033257987-1599812386868_Q64/Alexandar-Alexandrov.jpg)
... In this practice a rescue mechanism is usually also present to avoid the risk of loss of consciousness related to the dangerous hypoxia. When the rescue mechanisms fail or a person is not able to be set free, the acute and severe asphyxia results in an accidental death [1][2][3][4][5][6][7][8][9]. Death due to autoerotic asphyxiation is rarely revealed to be a suicide [1,2,10]. ...
... Another contributing factor to electrocution is the water Page 2 of 9 Rzepczyk et al. Egyptian Journal of Forensic Sciences (2024) 14:9 and damp conditions around the fishing site (Kiryakova et al. 2014;Popa et al. 2022). In Polish legislation, the Act on Inland Fisheries defines angling regulations. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/537443188785152-1505147849199_Q64/Teodora-Kiryakova.jpg)
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... Despite this, an extensive review of the clinical and surgical literature was made by Ricci et al., which found approximately 130 cases in over 100 years [3]. Conversely, in the pathology field, to the best of our knowledge only three autopsy studies have been reported in the English literature [4][5][6]. ...
... All consecutive measurements were performed on sections in which a prominent nucleolus was noted. The ratio of the mean nuclear diameter to the mean perikaryal diameter was taken as the nucleocytoplasmic ratio (Papantchev et al. 2006(Papantchev et al. , 2009aHinova-Palova et al. 2007;Papantchev 2008;). Calculation was made with the aid of an Ultrastructure Size Calculator (Ted Pella, Tustin, CA, USA). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/1004111839379457-1616410326210_Q64/Vassil-Papantchev.jpg)
... The left hemisphere is perfused mainly through the circle of Willis (CW). However, it is well known that CoW is highly variable structure and at least 50% of individuals have some variation [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. We could speculate that some of these variations could lead to hypoperfusion during uSCP. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/279610613878809-1443675773991_Q64/V-Stoinova.jpg)
... Leucine-enkephalin is a potent and naturally-occurring opioid peptide which serves to inhibit other neurotransmitters involved with pain perception, thereby reducing its emotional and physical impact (Papantchev 2008;Papantchev et al. 2009c). Nevertheless, there is little data in the literature concerning Leu-enkephalin-immunoreactivity (Leu-enk-ir) in the DC. ...
... Therefore, the MRA morphology of COW can reflect effectively the physiological cerebral perfusion. Other studies have suggested that circle of Willis <1mm cannot provide adequate collateral pathway in case of acute ICA obstruction 8,13 . In our study also, we made these assumptions and classify adequacy of circle of Willis accordingly. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/1083179406491661-1635261503981_Q64/Dima-Todorova-2.jpg)
... The left hemisphere is perfused mainly through the circle of Willis (CW). However, it is well known that CoW is highly variable structure and at least 50% of individuals have some variation [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. We could speculate that some of these variations could lead to hypoperfusion during uSCP. ...
... Previous studies have reported the presence of five types of neurons in the human claustrum: spiny neurons varying in size and shape (type I); large aspiny neurons (type II); large aspiny neurons without pigment deposits (type III), small pigment-laden aspiny neurons (type IV); small aspiny neurons without lipofuscin granules (type V) (15). Several studies have investigated the presence and distribution of a number of substances in the claustrum of humans and other mammals, such as NADPH-diaphorase, neuronal nitric oxide synthase (nNOS), neuropeptide Y, leucine enkephalin, etc (16)(17)(18)(19)(20)(21). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/1037047561199617-1624262814298_Q64/Boycho-Landzhov-2.jpg)
