Monodisperse nonmagnetic macroporous poly(glycidyl methacrylate) (PGMA) microspheres were synthesized by multistep swelling polymerization of glycidyl methacrylate, ethylene dimethacrylate and 2-[(methoxycarbonyl)methoxy]ethyl methacrylate (MCMEMA). This was followed (a) by ammonolysis to modify the microspheres with amino groups, and (b) by incorporation of iron oxide (γ-FeO) into the pores to render the particles magnetic. The resulting porous and magnetic microspheres were characterized by scanning and transmission electron microscopy (SEM and TEM), atomic absorption and Fourier transform infrared spectroscopy (AAS and FTIR), elemental analysis, vibrating magnetometry, mercury porosimetry and Brunauer-Emmett-Teller adsorption/desorption isotherms. The microspheres are meso- and macroporous, typically 5 μm in diameter, contain 0.9 mM · g of amino groups and 14 wt.% of iron according to elemental analysis and AAS, respectively. The particles were conjugated to p46/Myo1C protein, a potential biomarker of autoimmune diseases, to isolate specific autoantibodies in the blood of patients suffering from multiple sclerosis (MS). The p46/Myo1C loaded microspheres are shown to enable the preconcentration of minute quantities of specific immunoglobulins prior to their quantification via SDS-PAGE. The immunoglobulin M (IgM) with affinity to Myo1C was detected in MS patients. Graphical abstract Monodisperse magnetic poly(glycidyl methacrylate) microspheres were synthesized, conjugated with 46 kDa form of unconventional Myo1C protein (p46/Myo1C) via carbodiimide (DIC) chemistry, and specific autoantibodies isolated from blood of multiple sclerosis (MS) patients; immunoglobulin M (IgM) level increased in MS patients.
В соответствии с современными представлениями о рассеянном склерозе (РС), значительную роль в развитии патологического процесса играют B-лимфоциты. В связи с этим имеет значение поиск новых биомаркеров В-лимфоцитарного происхождения, которые могут отражать клинические особенности этого заболевания. Цель работы-оценить соотношение между уровнем 48 кДа формы неконвенционного миозина 1с (48 кДа Myo 1c) в сыворотке крови больных рассеянным склерозом и стадией этого заболевания, его тяжестью и типом течения.
Львівський національний медичний університет імені Данила ГалицькогоThe article describes the main approaches to the use of approved medicines: interferon-β1b, glatiramer acetate, iterferon-β1a s/c, interferon-β1a i/m, mitoxantrone (Cyclophosphamide), Tizabri (natalizumab) in children with multiple sclerosis. These pediatric clinical studies conducted in the world in multiple sclerosis in children.
For almost 2 years, the SARSCoV2 pandemic has had a profound impact on the world of medicine and research. Research excitement caused by the new SARSCoV2 coronavirus may stimulate the study of demyelinating diseases (multiple sclerosis, acute disseminated encephalomyelitis acute), conversely, deepening our knowledge of the pathogenesis of demyelination and its association with viral infections may lead to studies in the immunopathogenesis of COVID19. Technological advances that have been rapidly mastered to combat SARSCoV2 may soon be used to address multiple sclerosis. A striking example is the potential use of mRNAbased technology to develop tolerant vaccines that suppress CNS autoimmunity. Clinical trials are already underway to evaluate IFNB, fingolimod, dimethyl fumarate, and masitinib (a tyrosine kinase inhibitor that is effective in phase 3 studies for primary progressive multiple sclerosis) as potent inhibitors of coronavirus. The study presents a clinical case of acute disseminated encephalomyelitis (ADEM) associated with SARSCoV2 in a 39yearold woman who was examined and treated at the Lviv Regional Clinical Hospital. The woman complained of severe dizziness, periodic numbness of the tongue, and snowlines of speech. From the anamnesis, it is known that from 07.05.2020 to 20.05.2020 she was treated for confirmed COVID19 infection in the Lviv Regional Infectious Diseases Hospital. Her condition was of moderate severity, she received an oxygen therapy. Neurological manifestations are horizontal nystagmus in both directions, high tendon and periosteal reflexes on all limbs, bilateral Babinski’s symptom, intentional tremor when performing a finger test on both sides. The diagnosis of demyelinating disease (possibly caused by COVID19) was established on the basis of serological studies (polymerase chain reaction to SARSCoV2), clinical findings, magnetic resonance imaging (multiple supra and infratentorial focal lesions of the white matter of the brain). The positive use of corticosteroids in the treatment of acute diffuse encephalomyelitis associated with SARSCoV2 has been reported. Thus, accurate diagnosis and timely treatment of acute demyelinating disease caused by SARSCoV2 virus are of great clinical importance.
Primary acute measles encephalitis and acute postmeasles encephalitis are the most common neurological complications of measles. It is important to detect encephalitis, which develops a month or more after the manifestations of measles infection. These encephalitis are rare and occur mainly in people with immunodefi ciency. Multiple sclerosis is a chronic disease of the central nervous system for the treatment of which diseasemodifying therapy is used, namely monoclonal antibodies, that can lead to immunosuppression and immunodefi ciency. Nowadays, there is insuffi cient information about the course of postcortical encephalitis in patients with multiple sclerosis who are taking immunosuppressive drugs. The article presents data on the clinical classifi cation, diagnosis and treatment of measles encephalitis. A clinical case of measles inclusion body encephalitis in a thirty-threeyear-old patient with multiple sclerosis on the background of annual intake of monoclonal antibodies is presented. She also had viral-bacterial pneumonia and developed disseminated intravascular coagulation in the brain and lungs. These complications of measles infection led to the death of the person after a month and a half of intensive care. Thus, patients with multiple sclerosis who are taking drugs with immunosuppressive eff ects are among the risk group for measles inclusion body encephalitis. Measles inclusion body encephalitis in such patients can be severe, which complicates timely diagnosis, proper treatment and leads to death.
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