Optimization of Romiplostim Biosimilar Efficacy Trial Using In Silico Clinical Trial Approach for Patients With Immune Thrombocytopenia.

During biosimilar drug development, conducting a clinical trial of biosimilar efficacy in patients may become necessary in the presence of residual uncertainty regarding the biosimilarity of the drugs. In the development of the biosimilar romiplostim GP40141, we aimed to use a model-based in silico clinical trial (ISCT) approach to optimize the planned biosimilar efficacy trial in patients with immune thrombocytopenia. The population pharmacokinetic/pharmacodynamic model for healthy volunteers was modified and validated to describe platelet dynamics in patients with immune thrombocytopenia.

Active spread of β-thalassemia beyond the thalassemia belt: A study on a Russian population.

β-Thalassemia is a disease traditionally associated with thalassemia belt countries. Nonetheless, as global migration intensifies, β-thalassemia-causing variants spread far from their origin. We investigated this process to detect some patterns underlying its course.

TiCTMXene as surface-enhanced Raman scattering substrate.

The electromagnetic field enhancement mechanisms leading to surface-enhanced Raman scattering (SERS) of R6G molecules near TiCTMXene flakes of different shapes and sizes are analyzed theoretically in this paper. In COMSOL simulations for the enhancement factor (EF) of SERS, the dye molecule is modeled as a small sphere with polarizability spectrum based on experimental data. It is demonstrated, for the first time, that in the wavelength range of500 nm-1000 nm, the enhancement of Raman signals is largely conditioned by quadrupole surface plasmon (QSP) oscillations that induce a strong polarization of the MXene substrate.

Surgical treatment of epilepsy in children with focal cortical dysplasia in central gyri.

Unlabelled: Focal cortical dysplasias are known to be the most frequent and furtive lesions leading to intractable epilepsy in children. Epilepsy surgery in central gyri, been effective in 60-70% of cases, is still significantly challenging due to the high risk of postoperative permanent neurological impairment.

Study Aims: Assessment of the outcome after epilepsy surgery in children with FCD in central lobules.

Epilepsy surgery in children with tuberous sclerosis.

Unlabelled: Most children with tuberous sclerosis (TS) present with intractable seizures. Various factors including demography, clinical data and surgery option are mentioned to affect the outcome after epilepsy surgery in these cases.

Objective: To evaluate some demographic and clinical variables probably related to seizure outcome.

Burr hole microsurgical subtemporal selective amygdalohippocampectomy.

Introduction: At present, selective amygdalohippocampectomy (SAH) has become popular in the treatment of drug-resistant mesial temporal lobe epilepsy (TLE). However, there is still an ongoing discussion about the advantages and disadvantages of this approach.

Methods: The study included a consecutive series of 43 adult patients with drug-resistant TLE, involving 24 women and 19 men (1.

Use of thrombopoietin receptor agonists in adults with immune thrombocytopenia: a systematic review and Central European expert consensus.

There are currently three thrombopoietin receptor agonists (TPO-RAs) approved in Europe for treating patients with immune thrombocytopenia (ITP): romiplostim (Nplate®), eltrombopag (Revolade®), and avatrombopag (Doptelet®). However, comparative clinical data between these TPO-RAs are limited. Therefore, the purpose of this study was to perform a literature review and seek expert opinion on the relevance and strength of the evidence concerning the use of TPO-RAs in adults with ITP.

Distribution of Biodiversity of Wild Beet Species (Genus L.) in Armenia under Ongoing Climate Change Conditions.

The reported annual temperature increase and significant precipitation drop in Armenia impact the country's ecosystems and biodiversity. The present study surveyed the geographical distribution of the local wild beet species under the ongoing climate change conditions. We showed that , and are sensitive to climate change and were affected to various degrees, depending on their location.

[Surgical treatment of epilepsy in patients with hypothalamic hamartomas].

Unlabelled: The purpose of this review was to analyze the current ideas about various techniques and methods for treating epilepsy in patients with hypothalamic hamartomas including microsurgery, endoscopy, radiofrequency thermal destruction, stereotactic laser ablation and radiosurgery. Data characterizing their effectiveness, limitations and complications are considered.

Conclusion: When choosing the optimal treatment option, it is necessary to take into account patient age and course of disease, anatomical and topographic features of hamartoma location, previous attempts of treatment, opinion of the patient and his guardians, as well as surgical experience.

[Hypothalamic hamartoma microsurgical resection using transcallosal transforaminal approach].

Objective: Transcallosal transseptal interforniceal approach is recognized as the most appropriate route to resect sessile hypothalamic hamartomas but individuals with obliterated cavum septi pellucidi may pose difficulties to access these lesions safely.

Material And Methods: Six patients aged 8-34 years (med - 15.5) with the rather small (medial volume - 1.

[Crossed aphasia in neurosurgical practice: case report and literature review].

Background: Crossed aphasia in dexstral (CAD) is an extremely rare disorder. To date, about 200 cases have been described in the literature.

Material And Methods: The authors report 4 cases of CAD.

[Lessons learnt from 101 hemispheric pediatric epilepsy surgeries part ii: pitfalls and complications].

Objective: To evaluate the spectrum of pitfalls and complications after hemisherotomy basing on a retrospective study of a large consecutive pediatric cohort of patients from a single institution.

Material And Methods: One hundred and one patients (med. age - 43 months) with refractory seizures underwent hemispherotomy.

[Surgical treatment of drug-resistant epilepsy following hippocampal sclerosis].

Unlabelled: Surgery is an effective approach for drug-resistant temporal lobe epilepsy following hippocampal sclerosis. There is still no clear and unanimous opinion about advantages and disadvantages of certain surgical technique.

Material And Methods: There were 103 surgical interventions in 101 patients.

[Lessons learnt from 101 hemispherotomies in children with symptomatic epilepsy. Part I: seizure outcome].

Objective: To evaluate variables that may predict the outcome after hemispherotomy basing on a retrospective study of a large consecutive pediatric cohort of patients from a single institution.

Material And Methods: One hundred and one patients with refractory seizures and variable decline in development (=78) underwent hemispherotomy (med. age - 43 months, med.

Multiple hippocampal transections for mesial temporal lobe epilepsy.

Background: The purpose of this study was to evaluate the effectiveness of multiple hippocampal transections (MHT) in the treatment of drug-resistant mesial temporal lobe epilepsy.

Methods: Six patients underwent MHT at Burdenko Neurosurgery Center in 2018. The age of the patients varied from 18 to 43 years.

[Repeated haploidentical allogeneic hematopoietic stem cell transplantation with TCR αβ/CD19 depletion in patient with primary myelofibrosis. Case report].

Indications of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with primary myelofibrosis are intermediate-2 and high-risk group of DIPSS (Dynamic International Prognostic Scoring System), beginning of the disease in childhood. The other adverse factors affect engraftment and survival after allo-HSCT, example partialy matched donor. But the result of allo-HSCT from matched related donors and result of allo-HSCT from haploidentical donors are comparable.

[Thrombosis in patients with myeloproliferative neoplasms. Case report].

Thrombotic complications are the most significant factors determining the prognosis in myeloproliferative neoplasms. Markers for assessing the risk of thrombosis are the number of leukocytes, platelets, hemoglobin level, hematocrit, age, molecular status, history of thrombosis, obesity, arterial hypertension, hyperlipidemia, hereditary or acquired thrombophilia. The pathogenesis of thrombosis in patients with myeloproliferative neoplasms is complex and multifactorial.

Low V617F Allele Burden in Ph-Negative Chronic Myeloproliferative Neoplasms Is Associated with Additional or Gene Mutations.

(Janus kinase 2) V617F, (Calreticulin) exon 9, and (receptor for thrombopoietin) exon 10 mutations are associated with the vast majority of Ph-negative chronic myeloproliferative neoplasms (MPNs). These mutations affect sequential stages of proliferative signal transduction and therefore, after the emergence of one type of mutation, other types should not have any selective advantages for clonal expansion. However, simultaneous findings of these mutations have been reported by different investigators in up to 10% of MPN cases.

[Stereoelectroencephalography (seeg): a brief historical review of modern deep electrode implantation methods used for diagnosis and treatment of epilepsy].

More than 30% of patients with symptomatic epilepsy are resistant to drug therapy and therefore surgical treatment is the method of choice for such patients. Search and localization of the epileptogenic zone and all parts of the neural networks involved in stereotypic seizures are the most important objectives of pre-surgical evaluation and the prerequisite for the successful surgery. In the last decade, stereotactic implantation of multiple intracerebral multi-contact electrodes (SEEG) has been increasingly used for this purpose.

[Influence of resection quality on postoperative outcomes in children with atypical teratoid-rhabdoid tumor of the central nervous system].

The purpose of this study was to assess the influence of resection quality on overall survival and disease-free survival in children with atypical teratoid-rhabdoid tumors (ATRT). The study included children younger than 18 years old for the period from 2008 to 2019. There were 134 interventions in 105 patients with ATRT including 11 redo resections («second-look» surgery) and 18 procedures for tumor recurrence.

Experimental demonstration of a 4,294,967,296-QAM-based Y-00 quantum stream cipher template carrying 160-Gb/s 16-QAM signals.

We demonstrate a 4,294,967,296-quadrature amplitude modulation (QAM) based Y-00 quantum stream cipher system carrying a 160-Gb/s 16-QAM signal transmitted over 320-km SSMF. The ultra-dense QAM cipher template is realized by an integrated two-segment silicon photonics I/Q modulator.

[The prognostic value of ASXL1 mutation in primary myelofibrosis. Literature review and clinical case description].

Primary myelofibrosis is a myeloproliferative neoplasm that occurs de novo, characterized by clonal proliferation of stem cells, abnormal expression of cytokines, bone marrow fibrosis, hepatosplenomegaly as a result of extramedullary hematopoiesis, symptoms of tumor intoxication, cachexemia, peripheral blood leukoerythroblastosis, leukemic progression and low survival. Primary myelofibrosis is a chronic incurable disease. The aims of therapy: preventing progression, increasing overall survival, improving quality of life.

Broadly and finely tunable hybrid silicon laser with nanosecond-scale switching speed.

We demonstrate a hybrid silicon tunable laser with wide tunability and rapid switching speed for applications in sensing and optical networks. By implementing an optimized carrier injection phase shifter design, the filters of the silicon laser cavity may be efficiently controlled, enabling both fine and broad wavelength tuning across a 56 nm range, in addition to a rapid 10 ns switching time. The laser emits up to 10 dBm output power, and the linewidth is near 200 kHz.