blood clots
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2022 ◽  
pp. 26-34
Author(s):  
Sonali Sagar Kharade

Digital technology in general and social media in particular entail both positive as well as negative impacts on the psyche of the adolescents. The current generation of gen-z has grown up in a media-saturated world. However, it is pretty difficult to judge how media exactly influences their lives. It's commonly observed that social media platforms help saving time establishing contact with our acquaintances. The excessive use of it however leads to various negative repercussions. This may include cyber bullying, low self-esteem, gaming addiction, and less time devoted for doing physical activities. Playing indoor and outdoor games makes adolescents physically fit and mentally healthy. There are however various video games on social media gaming platforms that affect their creativity and logical thinking in an adverse manner. Negative consequences of video game addiction can lead to many problems such as severe body-ache, skin blisters, weakened eyesight, and insomnia. Long-term addiction could lead to obesity, weakness or numbness in the hands, and even blood clots.


Author(s):  
Rafael R. Khismatullin ◽  
Shahnoza Abdullayeva ◽  
Alina D. Peshkova ◽  
Khetam Sounbuli ◽  
Natalia G Evtugina ◽  
...  

Blood clots and thrombi undergo platelet-driven contraction/retraction followed by structural rearrangements. We have established quantitative relationships between the composition of blood clots and extent of contraction to determine intravital contraction of thrombi and emboli based on their content. The composition of human blood clots and thrombi was quantified using histology and scanning electron microscopy. Contracting blood clots segregated into the gradually shrinking outer layer that contains a fibrin-platelet mesh and the expanding inner portion with compacted red blood cells (RBCs). At 10% contraction, biconcave RBCs were partially compressed into polyhedral RBCs, which became dominant at 20% contraction and higher. The polyhedral/biconcave RBC ratio and the extent of contraction displayed an exponential relationship, which was used to determine the extent of intravital contraction of ex vivo thrombi, ranging from 30% to 50%. In venous thrombi, the extent of contraction decreased gradually from the older (head) to the younger (body, tail) parts. In pulmonary emboli, the extent of contraction was significantly lower than in the venous head, but was similar to the body and tail, suggesting that the emboli originate from the younger portion(s) of venous thrombi. The extent of contraction in arterial cerebral thrombi was significantly higher than in the younger parts of venous thrombi (body, tail) and pulmonary emboli, but was indistinguishable from the older part (head). A novel tool, named the "contraction ruler," has been developed to use the composition of ex vivo thrombi to assess the extent of their intravital contraction, which contributes to the pathophysiology of thromboembolism.


2021 ◽  
Vol 25 (5-6) ◽  
pp. 7-11
Author(s):  
М.О. Дудченко ◽  
С.М. Заєць ◽  
Р.А. Прихідько

This review summarizes current knowledge about coagulation disorders associated with COVID-19 infection. Despite a significant amount of research, it is currently unclear whether COVID-19 is the direct cause of coagulopathic disorders or they occur as the infectious process progresses. Different authors have proposed several pathogenetic mechanisms for the development of coagulopathy in this disease. However, the most important is the release of a large number of cytokines that provoke interstitial inflammation, endothelial damage and activation of coagulation, in the pathogenesis of which the tissue factor plays a key role. Hyperinflammatory reactions lead to tissue damage, disruption of the endothelial barrier and uncontrolled activation of coagulation. In the lungs and, possibly, in other organs, under the influence of the virus, local damage to the vascular endothelium occurs, which leads to angiopathy, activation and aggregation of platelets with the formation of blood clots and concomitant consumption of platelets. Systemic hypercoagulation and hyperfibrinogenemia significantly increase the likelihood of large vessel thrombosis and thromboembolic complications, which are detected in 20–30% of patients in the intensive care units. Along with an increase in the level of cytokines in the blood, their content also increases in the lungs and in the bronchoalveolar lavage fluid. Cytokine storm leads to systemic intravascular coagulation, multiple organ failure and death. The review also provides the rationale for the principles of managing patients with coagulopathy based on the known mechanisms of unique disorders inherent in COVID-19. It has been shown that the problem of the pathogenesis of the development of blood clotting disorders in COVID-19 infection remains relevant.


Vaccines ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Philip R. Oldfield ◽  
Jennifer Hibberd ◽  
Byram W. Bridle

This mini-review focuses on the mechanisms of how severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) affects the brain, with an emphasis on the role of the spike protein in patients with neurological symptoms. Following infection, patients with a history of neurological complications may be at a higher risk of developing long-term neurological conditions associated with the α-synuclein prion, such as Parkinson’s disease and Lewy body dementia. Compelling evidence has been published to indicate that the spike protein, which is derived from SARS-CoV-2 and generated from the vaccines currently being employed, is not only able to cross the blood–brain barrier but may cause inflammation and/or blood clots in the brain. Consequently, should vaccine-induced expression of spike proteins not be limited to the site of injection and draining lymph nodes there is the potential of long-term implications following inoculation that may be identical to that of patients exhibiting neurological complications after being infected with SARS-CoV-2. However, further studies are needed before definitive conclusions can be made.


2021 ◽  
Vol 10 (4) ◽  
pp. 131-141
Author(s):  
E. M. Shpilyanskiy ◽  
E. V. Roitman ◽  
K. M. Morozov ◽  
T. V. Sukhareva

Background. COVID-19 is represented by a large number of different phenotypes, ranging from asymptomatic progress to the development of severe multiple organ dysfunction syndrome. The mechanisms of development of multiple organ dysfunction syndrome are multifactorial, including hypercoagulation with the formation of blood clots. They are often diagnosed as thrombotic complications with detection of blood clots not only in the veins and pulmonary arteries, but also in the heart and main arteries. An observational study shows that the incidence of venous and arterial thrombosis is as high as 31% in patients with COVID-19 pneumonia. However, large studies have not yet been conducted.Aim. To generalize and analyze our own observations of the clinical course of patients with thrombosis and COVID-19.Methods. The study included 5 male patients who had arterial and venous thrombosis and COVID-19 positive test. Results The experience of treatment of 5 patients with COVID-19 with arterial and venous thrombosis was analyzed. All patients showed characteristic changes in the coagulogram. The patient who, upon admission, had a negative test for COVID-19, and characteristic changes in the coagulogram appeared on the day of recurrent thrombosis, was of greatest interest. All patients received standard treatment and were discharged with improvement after testing negative for COVID-19.Conclusion. Generalization of the clinical course of patients with COVID-19 and thrombosis of various vascular regions allowed us to develop treatment tactics for these groups of patients.


2021 ◽  
Vol 9 (12) ◽  
pp. 3139-3142
Author(s):  
Swapnil Mundhe ◽  
Preetam Itnar ◽  
Kalyani Jadhav

Background: Common symptoms of COVID-19 include fever, cough, fatigue, shortness of breath, and loss of smell and taste. While the majority of cases result in mild symptoms, some progress to acute respiratory distress syndrome (ARDS) likely precipitated by a cytokine storm, multi-organ failure, septic shock, and blood clots. Most of the drugs of SARS- COVID contain higher generation antibiotics, Antiviral drugs, Steroidal drugs which further leads to respiratory complication like respiratory distress, fibrosis of lungs, COPDS whereas Ayurvedic drugs heal the lungs without causing any post covid complications. So, the need of an hour is to use and assess the Ayurvedic formulation in SARS-COVID. Aim & Objectives: To study the role of Shwaskuthar ras in covid-19 and to explore the concept of Shwaskuthar Rasa from various Granthas. Materials & Methods: Collected from various Granthas, Samhita, Article, Pubmed, google scholar and Journals. Shwaskuthar rasa is a well-known combination of Ayurvedic text used in respiratory disorders. Keywords: COVID-19, Granthas, Rasa Aushadhi, Shwaskuthar


Author(s):  
Mayur B. Wanjari ◽  
Deeplata Mendhe ◽  
Pratibha Wankhede

Actilyse can break blood clots that form in the heart, blood arteries, or lungs during a heart attack. This medication is also given to stroke patients to improve recovery and reduce the likelihood of impairment. Recombinant DNA technology was used to create Activase, a tissue plasminogen activator. It is a sterile, purified glycoprotein of 527 amino acids. It is made by combining complementary DNA (cDNA) from a human melanoma cell line with the natural human tissue-type plasminogen activator. After reconstitution with Sterile Water for Injection, USP, Activase is a sterile, white to off-white lyophilized powder for intravenous injection.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Nelli Morgulchik ◽  
Foteini Athanasopoulou ◽  
Edmund Chu ◽  
Yoriko Lam ◽  
Nazila Kamaly

Coronavirus disease 2019 (COVID-19) is a deadly respiratory disease caused by severe acute respiratory syndrome coronavirus 2, which has caused a global pandemic since early 2020 and severely threatened people's livelihoods and health. Patients with pre-diagnosed conditions admitted to hospital often develop complications leading to mortality due to acute respiratory distress syndrome (ARDS) and associated multiorgan failure and blood clots. ARDS is associated with a cytokine storm. Cytokine storms arise due to elevated levels of circulating cytokines and are associated with infections. Targeting various pro-inflammatory cytokines in a specific manner can result in a potent therapeutic approach with minimal host collateral damage. Immunoregulatory therapies are now of interest in order to regulate the cytokine storm, and this review will summarize and discuss advances in targeted therapies against cytokine storms induced by COVID-19.


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