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For instance, a study showed how COVID-19 may cause microvascular brain pathology and endothelial cell-death, disrupting the blood–brain barrier. [51] [52] Another study identified neuroinflammation and an activation of adaptive and innate immune cells in the brain stem of COVID-19 patients. [53]
The FDA and European Medicines Agency estimates the risk of myocarditis after the Covid-19 vaccine as 1 case per 100,000 of those who are vaccinated. [31] [32] The risk of myocarditis after Covid-19 vaccination was observed to be highest in males between 16–29 years of age, and after receiving the second dose of the mRNA Covid-19 vaccine.
Symptoms of COVID-19. Some less common symptoms of COVID-19 can be relatively non-specific; however the most common symptoms are fever, dry cough, and loss of taste and smell. [1] [22] Among those who develop symptoms, approximately one in five may become more seriously ill and have difficulty in breathing.
(Reuters) - COVID-19 can cause the brain to shrink, reduce grey matter in the regions that control emotion and memory, and damage areas that control the sense of smell, an Oxford University study ...
This leads to accumulation of AGEs, thickening of the basement membrane, narrowing the blood vessels, reducing blood flow to the tissues and causing ischemic injury. [ 18 ] [ 19 ] In addition, oxidative stress , caused by AGEs and the other pathways, causes apoptosis of pericytes and podocytes in the retina and the kidneys respectively leading ...
Cardiomyopathy is a group of primary diseases of the heart muscle. [1] Early on there may be few or no symptoms. [1] As the disease worsens, shortness of breath, feeling tired, and swelling of the legs may occur, due to the onset of heart failure. [1]
Certain individuals such as women, diabetics, and the elderly may present with more varied symptoms. [8] If blood flow through the coronary arteries is stopped completely, cardiac muscle cells may die, known as a myocardial infarction, or heart attack. [9] Coronary artery disease (CAD) is the most common cause of coronary ischemia. [7]
DIC may cause a range of symptoms, including abnormal bleeding, breathlessness, chest pain, neurological symptoms, low blood pressure, or swelling. [28] COVID‑19 vaccines have some adverse effects that are listed as common in the two or three days following vaccination which are usually mild and temporary. [21]