scholarly journals Neurophysiological Evidence for Stress-Related Reductions in Right Frontal Regulatory Control in Trait Aggressive, Violent Prone Men

2021 ◽  
Vol 2 (2) ◽  

Trait aggression is a personality characteristic that has been associated with reduced executive function, which includes lack of impulse control and decreased emotional regulation. Reduced performance on tasks measuring executive function has reliably been associated with reduced frontal lobe function. The aim of the current research was to extend the capacity model of hostility developed by Holland et al. [1] to apply to trait aggression. Men obtaining high and low scores on the Buss and Perry Aggression Questionnaire completed a cognitive and emotional task, and blood pressure measures were taken before and after completion of the tasks. Analysis of the findings indicated that low trait aggressive men evidenced lower systolic blood pressure (SBP) after competing these tasks. Conversely, highly trait aggressive men evidenced significantly higher SBP after completing the same tasks. This indicative of reduced right frontal lobe inhibitory control of the right temporoparietal regions and provides preliminary support for the application of the capacity model to trait aggression.

2019 ◽  
Vol 43 (1) ◽  
pp. 21-25
Author(s):  
Mohammed Senna Hassan

   Twenty Iraqi ducks hearts ( 10 male and 10 female ) have been  used for   demonstration  and illustration of heart's valves  and chambers  as well as  anatomical   and morphological site of view to explain what modifications had been take place for ducks heart  to perform  his normal life at the  circumstances  of  high  blood  pressure  and  pulse  rate. The heart  which has distinctly pointed  apex  was  built   in simple  manner located  in a transparent  taught  heart  pericardial  sac. It   was pyramidal in shape  externally  and  has a longitudinal  salcus  passing  to the  right  side, the  anterior of  the   heart  is  divided  into two  unequal  anterior  chamber  similar  to  those of mammalian  hear  .The heart valves are modified  in  order to  minimize  the  fraction  that occur as a result of  high  blood  pressure  and  pulse  rate  of  the  duck  heart , also  the  muscular  trabeculae   replace  the  chordate  tendineae  , which  were  present in the  mammalian    heart  in order to  minimize  the  fraction  resulting  from high  pulse  rate..    


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Javier I. Ottaviani ◽  
Abigail Britten ◽  
Debora Lucarelli ◽  
Robert Luben ◽  
Angela A. Mulligan ◽  
...  

Abstract Flavan-3-ols are a group of bioactive compounds that have been shown to improve vascular function in intervention studies. They are therefore of great interest for the development of dietary recommendation for the prevention of cardio-vascular diseases. However, there are currently no reliable data from observational studies, as the high variability in the flavan-3-ol content of food makes it difficult to estimate actual intake without nutritional biomarkers. In this study, we investigated cross-sectional associations between biomarker-estimated flavan-3-ol intake and blood pressure and other CVD risk markers, as well as longitudinal associations with CVD risk in 25,618 participants of the European Prospective Investigation into Cancer (EPIC) Norfolk cohort. High flavan-3-ol intake, achievable as part of an habitual diet, was associated with a significantly lower systolic blood pressure (− 1.9 (− 2.7; − 1.1) mmHg in men and − 2.5 (− 3.3; − 1.8) mmHg in women; lowest vs highest decile of biomarker), comparable to adherence to a Mediterranean Diet or moderate salt reduction. Subgroup analyses showed that hypertensive participants had stronger inverse association between flavan-3-ol biomarker and systolic blood pressure when compared to normotensive participants. Flavanol intake could therefore have a role in the maintenance of cardiovascular health on a population scale.


Pulse ◽  
2017 ◽  
Vol 9 (1) ◽  
pp. 45-48
Author(s):  
MR Molla ◽  
F Ferdousi ◽  
DR Shankar ◽  
AKMB Karim

A 13 years old boy admitted with the complaint of progressive exophthalmos and gradually decreasing vision on right eye, also occasional headache and deformity on the right fronto-orbital region. Radiological & clinical findings revealed a case of frontal osteoma in the right frontal sinus extending up to right frontal lobe, eroding right roof of the orbit. Complete excision of the tumor mass was possible surgically. Biopsy confirmed a case of osteoma. Below is a discussion on diagnosis & management of frontal osteomaPulse Vol.9 January-December 2016 p.45-48


1997 ◽  
Vol 86 (3) ◽  
pp. 505-510 ◽  
Author(s):  
Christopher E. Wolfla ◽  
Thomas G. Luerssen ◽  
Robin M. Bowman

✓ A porcine model of regional intracranial pressure was used to compare regional brain tissue pressure (RBTP) changes during expansion of an extradural temporal mass lesion. Measurements of RBTP were obtained by placing fiberoptic intraparenchymal pressure monitors in the right and left frontal lobes (RF and LF), right and left temporal lobes (RT and LT), midbrain (MB), and cerebellum (CB). During expansion of the right temporal mass, significant RBTP gradients developed in a reproducible pattern: RT > LF = LT > RF > MB > CB. These gradients appeared early, widened as the volume of the mass increased, and persisted for the entire duration of the experiment. The study indicates that RBTP gradients develop in the presence of an extradural temporal mass lesion. The highest RBTP was recorded in the ipsilateral temporal lobe, whereas the next highest was recorded in the contralateral frontal lobe. The RBTP that was measured in either frontal lobe underestimated the temporal RBTP. These results indicated that if a frontal intraparenchymal pressure monitor is used in a patient with temporal lobe pathology, the monitor should be placed on the contralateral side and a lower threshold for therapy of increased intracranial pressure should be adopted. Furthermore, this study provides further evidence that reliance on a single frontal intraparenchymal pressure monitor may not detect all areas of elevated RBTP.


2012 ◽  
Vol 8 (4S_Part_3) ◽  
pp. P88-P88 ◽  
Author(s):  
Shahram Oveisgharan ◽  
Alina Solomon ◽  
Miia Kivipelto ◽  
Vladimir Hachinski

PEDIATRICS ◽  
1949 ◽  
Vol 3 (2) ◽  
pp. 201-207
Author(s):  
JAMES G. HUGHES ◽  
HERMAN ROSENBLUM ◽  
LACY G. HORN

A case of Wilms' tumor of the right kidney is presented, in which the dominant clinical features were extreme elevation of blood pressure and hypertensive encephalopathy, associated with cardiac decompensation and death. Generalized convulsions and right hemiplegia developed, believed to have been due to cerebral anoxia incident to angiospasm. No metastases were found, and no other cause for arterial hypertension was discovered. This patient is thought to be the first case reported where death from Wilms' tumor was due to the hypertensive factor. The literature with reference to the association of hypertension with Wilms' tumor is reviewed. The mechanisms by which Wilms' tumors may produce unilateral renal ischemia with arterial hypertension are discussed. The presence of clearcut hypertension in a child with a kidney area mass points toward the probability of a Wilms' tumor.


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