About senile withering of the heart

1902 ◽  
Vol 2 (9) ◽  
pp. 483-484
Author(s):  
A. V. Sivre

The author, making parallel experiments on young people and old people (lifting with legs of a certain weight), came to the conclusion that the senile heart is not able to maintain that high blood pressure for a long time, which happens during intense physical work, since such a heart is not in a state to accelerate the pulse rate.

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..    


2017 ◽  
Vol 12 (3) ◽  
pp. 215-221 ◽  
Author(s):  
Loreana Sanches Silveira ◽  
Daniela Sayuri Inoue ◽  
Jose Messias Rodrigues da Silva ◽  
Suziane Ungari Cayres ◽  
Diego Giulliano Destro Christofaro

2019 ◽  
Vol 5 (3) ◽  
pp. 232-245
Author(s):  
Chuku Okorie ◽  
Kola Ajibesin ◽  
Adekunle Sanyaolu ◽  
Adeena Islam ◽  
Selciya Lamech ◽  
...  

Moringa oleifera (M. oleifera) is an angiosperm plant that is a member of the Moringaceae family. It is a natural plant that is native to the sub-Himalayan northern regions of India, Bangladesh, Pakistan, and Afghanistan. The plant grows abundantly throughout tropical and subtropical areas of the world. For several centuries, many cultures have utilized various parts of the moringa plant as traditional medicine to treat common illnesses and control life-threatening conditions such as hypertension (HTN), diabetes, hyperlipidemia, inflammation, etc. This article reviewed the current literature on the therapeutic benefits of M. oleifera on hypertension, primarily focusing on identifying the plant’s key components and its roles in hindering the common pathophysiological pathways associated with hypertension. The number of people living with HTN has been predicted to increase to 1.56 billion worldwide by 2025 in spite of the myriads of preventive and treatment strategies available today. Therefore, it would be of great value to explore alternative complementary ways of controlling high blood pressure. HTN is commonly defined as blood pressure equal to or higher than 140/90 mm Hg. HTN itself is not a disease condition and does not elicit specific symptoms, however, if left untreated for a long time, it can lead to complicated cardiovascular diseases such as angina, congestive heart failure, myocardial infarction as well as stroke and chronic kidney diseases. Primary hypertension is diagnosed when there is no known identifiable underlying cause for the onset of the condition. Secondary hypertension is diagnosed when there is evidence of a disease or disorder triggering the onset of the condition. It is apparent that understanding the role of M. oleifera in the management of hypertension would expand the valuable strategies for the control of this condition.


Author(s):  
Godfrey Katamba ◽  
David Collins Agaba ◽  
Rosemary Namayanja ◽  
Agnes Namaganda ◽  
Abdul Musasizi ◽  
...  

2017 ◽  
Vol 8 (2) ◽  
pp. 16-19
Author(s):  
L. A Balykova ◽  
S. A Ivianskiy ◽  
A. A Shirokova ◽  
N. V Shchekina ◽  
K. A Varlashina

The article provides a brief overview of the literature data on the prevalence and causes of hypertension in athletes. Different points of view on the effect of regular physical exertion on the level of arterial pressure are considered. In addition, the available diagnostic approaches to the detection of high blood pressure are described. Based on the available data, domestic and foreign experience, oftimal algorithms for diagnosing arterial hypertension in young people involved in sports are presented.


1991 ◽  
Vol 9 (1) ◽  
pp. 55???58 ◽  
Author(s):  
Graham CM. Watt ◽  
Christopher J.W. Foy ◽  
David W. Holton ◽  
Hugh E. Edwards

1991 ◽  
Vol 9 (1) ◽  
pp. 55???58
Author(s):  
Graham CM. Watt ◽  
Christopher J.W. Foy ◽  
David W. Holton ◽  
Hugh E. Edwards

Hypertension ◽  
2020 ◽  
Vol 75 (1) ◽  
pp. 16-22 ◽  
Author(s):  
Thomas C. Hinton ◽  
Zoe H. Adams ◽  
Richard P. Baker ◽  
Katrina A. Hope ◽  
Julian F.R. Paton ◽  
...  

1927 ◽  
Vol 46 (3) ◽  
pp. 443-461 ◽  
Author(s):  
R. Dominguez

The blood pressure and pulse rate of 90 normal rabbits have been studied for various periods of time, from 1 day (accidental death interrupting the observation) to 15 months. The main data are presented in a table containing the blood pressure and pulse rate on the 1st day of observation, the maximum and minimum of both during the entire period of observation of each animal, together with the sex and weight of the animal. Separate tables are given showing the distribution of blood pressure, pulse rate and the "maximum" blood pressure by animals. Detailed data on two animals observed for the longest time are given in tabular form. The anatomical changes that occur in some carotids enclosed in a loop are described and discussed. Considerations on "excitement" and pathological conditions which arise spontaneously in rabbits are given. A criterion for a pathologically high blood pressure in rabbits is proposed. The blood pressure of the normal rabbit ranges between 70 and 170 mm. Hg. The pulse rate, taken simultaneously with the blood pressure, fluctuates between 112 and 300 per minute.


2017 ◽  
Vol 27 (7) ◽  
pp. 1295-1305 ◽  
Author(s):  
Thomas G. Day ◽  
MinHae Park ◽  
Sanjay Kinra

AbstractHigh blood pressure is a risk factor for atherosclerosis in adults, but whether the same is true in children and young people is not known. This is important to guide management of high blood pressure in children and young people. We aimed to investigate the association in children and young people between blood pressure and carotid intima-media thickness, a non-invasive marker of atherosclerosis, through a systematic review. Studies were retrieved from MEDLINE and EMBASE. Articles were eligible for inclusion if they included at least one measurement of blood pressure and at least one measurement of ultrasound-derived carotid intima-media thickness, both measured during childhood (0–19 years), and a measure of effect size or correlation between the two measurements. A total of 3748 studies were identified in the initial search, of which 28 studies were included in this review. The results were mixed, but the largest and highest-quality studies suggested an independent positive association between blood pressure and carotid intima-media thickness in children and young people, even after adjustment for other cardiovascular risk factors. There was no indication of a clear threshold level for the effect of blood pressure on carotid intima-media thickness, hence there are insufficient data to support a pharmacological treatment threshold for the treatment of high blood pressure in children and young people to prevent future cardiovascular disease. The studies included varied widely in terms of quality and design, and it was not possible to combine the data in a meta-analysis. There is likely to be an independent association between blood pressure and carotid intima-media thickness in childhood, but it is not clear at what point this should be treated.


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