Embryologists of St. Petersburg State University, in the course of studying the mechanism of tissue repair in marine worms, found in them a substance that can be useful for humans, in particular used in medicine for faster wound healing, tissue regeneration. The results obtained by scientists during the study were published in the scientific journal…
A vaccine is a medical immunobiological agent containing weakened or completely inactivated pathogens of the disease, and in some cases their synthetic analogues. Such drugs contribute to the development of immunity to a certain antigen. The introduction of the vaccine into the body causes an immune reaction similar to the response to the action of…
Sweaty hands are a violation of the functioning of the eccrine sweat glands located in the skin of the palm surfaces of the hands, which is accompanied by increased sweating. Constantly cold, wet hands disrupt the social interaction of people, in severe cases they become an obstacle to mastering a number of professions. The diagnosis…
Ingrown hair is a change in the growth of the hair, in which its shaft remains under the skin and grows in the opposite direction. Ingrown hairs appear in places of frequent removal of unwanted hair (on the face, legs, neck, armpit, pubic area) and are defined as a site of swelling, inflammation, redness and…
Freckles (ephelids) are small, multiple, yellowish-brownish pigmented spots of rounded shape, localized mainly on open areas of the body (face, shoulders, arms, back, chest). The first rashes of freckles usually appear at the age of 5-6, reaching a maximum during puberty, the cause of their occurrence is a hereditary factor. The number increases many times…
White spots on the nails (leukonychia) – a change in the nail plate, characterized by the appearance of dotted, stripe-like or extensive areas of white color. White spots on the nails can be not just a harmless cosmetic defect, but indicate serious health problems. To find out the causes of white spots on the nails,…
Atrophic scar is a connective tissue defect located below the level of a healthy skin. Such a scar has the appearance of an altered depigmented area of the dermis, often with transverse striation, which sinks in comparison with neighboring tissues. The skin above it is thinned. Stretch marks serve as a kind of atrophic scars.…
Anarthria is the most severe degree of dysarthria, leading to almost complete absence of sound and voice reactions. The severity varies from complete inability to pronounce speech sounds to the presence of separate vocalizations, vowel sounds, syllables. Also, patients have difficulty chewing, swallowing, there is no facial expression, hypersalivation is expressed. Cerebral lesions are diagnosed…
Anomic aphasia is a variant of an aphasic disorder in which the nominative function of speech disintegrates. It is characterized by visual amnesia, forgetting the names of objects, speech pauses and difficulties in selecting words, verbal paraphasias. Diagnosis involves neurological examination (cerebral MRI, ultrasound of the arteries of the head and neck), neuropsychological and speech therapy…
