Comparison of Capizzi and High-dose Methotrexate Approaches in the Treatment of Pediatric B-cell Acute Lymphoblastic Leukemia.

Childhood cancers, with leukemia at the forefront, comprise 97% acute leukemia and 3% chronic leukemia, with 75% of acute leukemias being of lymphoblastic origin. Over the past 50 years, survival rates have witnessed a remarkable increase, progressing from around 10% to achieving cure rates exceeding 90% in certain childhood ALL subgroups with the advent of combined therapies. Between 1999 and 2018, a total of 123 patients diagnosed with B-ALL were initially identified, but after applying exclusion criteria, 105 patients were included in the evaluation, who were treated with COG protocols at our center.

Directed Energy Deposition of Parts with Internal Channels Using Removable Graphite Supports.

Additive manufacturing (AM) techniques have the potential to produce complex parts, and many of these techniques require the use of support structures to prevent deformations and to minimize thermal effects during the printing process, particularly when building overhangs and internal cavities. However, removing the support structures through postprocessing incurs additional costs and time penalties. Unlike other AM techniques, support structures are not used in directed energy deposition (DED) technique due to its working principle.

Repeated Radiosynovectomy in Haemophilia: Revealing Long-Term Effectiveness and Safety.

Introduction: Radiosynovectomy (RS), which uses beta particle-emitting radiocolloids, has proven highly effective in significantly reducing the occurrence of haemarthroses and breaking the cycle of bleeding and synovitis. This study now presents the long-term outcomes of repeated RS in individuals with haemophilia.

Materials And Methods: Repeated RS was administered to 48 joints in 37 people with haemophilia (PwHs) diagnosed with chronic haemophilic synovitis.

Retrospective analysis of hemophilia B in Turkey: identifying main characteristics and treatment options.

Background: Hemophilia B (HB), an X-linked recessive inherited bleeding disorder, exhibits a high prevalence among males.

Objectives: To present the first national cohort of persons with HB to define the demographics, clinical characteristics, and treatment patterns in Turkey.

Methods: This multicenter, retrospective study included 433 alive persons with HB registered in 35 centers between 1961 and 2018.

The Effects of Having a Child with Cancer on Parental Psychology: A Cross-Sectional Study.

: In childhood cancers, parents are affected psychologically as well as children. We aimed to evaluate the effect of childhood cancer type and stage, as well as elapsed time from diagnosis, on the anxiety and stress indicators among parents. : Patients aged between 0-18 years and diagnosed with cancer who were receiving chemotherapy (0-1 month, 1-6 month, 6-12 month) and completed treatment were included.

Experience with Pediatric Chronic Immune Thrombocytopenia over 30 Years in the Era before Eltrombopag.

Background: There is limited information on the natural course of chronic ITP in children. We aimed to evaluate the clinical and demographic characteristics of children with chronic ITP in the era before the availability of eltrombopag.

Methods: A total of 86 children with chronic ITP between 1978-2014 were included.

First identification of canine parvovirus -2a/2b variant in unvaccinated domestic dogs with gastrointestinal signs in Türkiye.

Background: Canine parvovirus type 2 (CPV-2) is the most common enteric virus that infects canids. CPV is the causative agent of a contagious disease defined mostly by clinical gastrointestinal signs in dogs. During the late 1970s, CPV-2 emerged as a new virus capable of infecting domestic dogs and growing across the world.

The effect of N-acetylcysteine on the neurotoxicity of sevoflurane in developing hippocampus cells.

Sevoflurane, a common pediatric anesthetic, has been linked to neurodegeneration, raising safety concerns. This study explored N-acetylcysteine's protective potential against sevoflurane-induced neurotoxicity in rat hippocampi. Four groups were examined: Control: Received 6 hours of 3 l/min gas (air and 30 % O2) and intraperitoneal saline.

Evaluation of Pore Size Graded Bone Scaffolds with Different Material Composition.

The demand for biomimetic and biocompatible scaffolds in equivalence of structure and material composition for the regeneration of bone tissue is relevantly high. This article is investigating a novel three-dimensional (3D) printed porous structure called bone bricks with a gradient pore size mimicking the structure of the bone tissue. Poly-ɛ-caprolactone (PCL) combined with ceramics such as hydroxyapatite (HA), β-tricalcium phosphate (TCP), and bioglass 45S5 were successfully mixed using a melt blending method and fabricated with the use of screw-assisted extrusion-based additive manufacturing system.

Relationships between trace elements and cognitive and depressive behaviors in sprague dawley and wistar albino rats.

This study investigates the effects of social isolation on mental health and cognitive functions in Sprague Dawley (SD) and Wistar Albino (WIS) rat strains, prompted by the heightened awareness of such impacts amid the COVID-19 pandemic. This study aims to explore the impact of social isolation on memory, learning, and behavioral changes in middle-aged SD and WIS rat strains and to investigate cortical trace element levels, seeking potential correlations between these levels and the observed behavioral responses to social isolation. Four groups of 14-month-old male rats were established: control and isolated SDs and WIS rats (CONT-SD, ISO-SD, CONT-WIS, ISO-WIS).

Evaluation of childhood malignancies presenting with musculoskeletal manifestations from two different divisions: a multicenter study.

Background: The aim of the study was to evaluate the approaches of pediatric rheumatologists and pediatric hematologists to patients with similar musculoskeletal (MSK) complaints and to highlight the differences that general pediatricians should consider when referring patients to these specialties.

Methods: This is a cross-sectional study involving the patients who applied to pediatric rheumatology centers with MSK complaints and were diagnosed with malignancy, as well as patients who were followed up in pediatric hematology centers with a malignancy diagnosis, and had MSK complaints at the time of admission.

Results: A total of 142 patients were enrolled in the study.

Analysis of the cardiovascular effects of hyperbaric oxygen therapy in diabetic patients.

During hyperbaric oxygen (HBO2) therapy in humans, there are changes in cardiovascular physiology due to high pressure and hyperoxygenation. Peripheral vasoconstriction, bradycardia, and a decrease in cardiac output are observed during HBO2 therapy. These physiological effects of HBO2 therapy on the cardiovascular system are tolerated in healthy people.

Rhabdomyosarcoma: Current Therapy, Challenges, and Future Approaches to Treatment Strategies.

Rhabdomyosarcoma is a rare cancer arising in skeletal muscle that typically impacts children and young adults. It is a worldwide challenge in child health as treatment outcomes for metastatic and recurrent disease still pose a major concern for both basic and clinical scientists. The treatment strategies for rhabdomyosarcoma include multi-agent chemotherapies after surgical resection with or without ionization radiotherapy.

High-intensity interval training ameliorates spatial and recognition memory impairments, reduces hippocampal TNF-alpha levels, and amyloid-beta peptide load in male hypothyroid rats.

Thyroid hormones are critical for healthy brain functions at every stage of life. Hypothyroidism can cause severe cognitive dysfunction in patients who do not receive adequate treatment. Although thyroid hormone replacement alleviates cognitive decline in hypothyroid patients, there are studies showing that there is no complete recovery.

Late Relapse in Neuroblastoma: Case Report and Review of the Literature.

Background: Neuroblastoma is the most common extra-cranial solid tumor in children. The survival rate of relapsed/refractory neuroblastoma is dismal. Late recurrence may occur rarely.

Acute complications observed during intensive chemotherapy in pediatric patients with acute lymphoblastic leukemia: Single-center experience.

Objective: In childhood acute lymphoblastic leukemia (ALL), very promising results were obtained thanks to the developments in treatment strategies in recent years. However, acute complications during treatment continue to be the important causes of mortality and morbidity. In this study, acute complications that develop during the treatment of ALL in childhood were evaluated.

Single crystal piezoelectric motor operating with both inertia and ultrasonic resonance drives.

This study presents a novel piezoelectric motor based on a single crystal material with orthorhombic mm2 symmetry class, in which piezoelectric coupling coefficients in sign and magnitude at transverse directions are different, implying that the value of d is positive whilst d is negative. The single crystal piezoceramic plate in the shape of a truncated rhombus has three conducting electrodes. While two active electrodes dividing one main surface into two equal sections, the common electrode covers the other main surface uniformly.

The detection and full genomic characterization of domestic cat Orthohepadnaviruses from Türkiye.

Background: Domestic cat hepadnaviruses (DCHs) have been described as a novel virus that can infect cats.

Objective: The aim of our study is the first identification and molecular characterizations of DCH infection in Turkish domestic cats.

Methods: The blood, organ and ascites fluid samples from 550 cats were randomly sampled.

Embedded 3D Printing of Cryogel-Based Scaffolds.

Cryogel-based scaffolds have attracted great attention in tissue engineering due to their interconnected macroporous structures. However, three-dimensional (3D) printing of cryogels with a high degree of precision and complexity is a challenge, since the synthesis of cryogels occurs under cryogenic conditions. In this study, we demonstrated the fabrication of cryogel-based scaffolds for the first time by using an embedded printing technique.

Enhanced Cytotoxic Activity of 6-Mercaptopurine-Loaded Solid Lipid Nanoparticles in Hepatic Cancer Treatment.

6-Mercaptopurine (6-MCP) is an antiproliferative purine analog used in acute lymphoblastic leukemia, non-Hodgkin lymphoma, and inflammatory bowel disease (Crohn's disease, ulcerative colitis). Although 6-MCP has the great therapeutic potential for cancer and immunosuppressant-related diseases, 6-MCP is not readily soluble in water, presents a high first-pass effect, short half-life (0.5-1.

Diagnosis Rates Through Cancer Screening Programs in Patients with Breast Carcinoma.

Aim: This study investigated whether breast cancer patients had ever applied for Cancer Early Diagnosis Screening and Training Centers (KETEM).

Method: This study, conducted from November 2020 to April 2021, adopts a cross-sectional research design and is planned as a survey study. The "Diagnosis Rates with Screening Programs in Breast Cancer Patients" survey was conducted on women over 45 who were diagnosed with breast cancer in the Medical Oncology Clinic of İzmir Katip Çelebi University Atatürk Education and Research Hospital.

The ameliorative effect of midazolam on empathy-like behavior in old rats.

Although studies suggest that cognitive functions in the elderly are impaired, elderly people tend to be more successful and wiser in solving emotional problems. In empathy-like behavior models, the observer rat rescues the distressed cage mate by displaying emotional and cognitive ability. The aim of the study was to investigate the changes in empathy-like behavior in older rats in comparison to adult rats.

3D bioprinting of tyramine modified hydrogels under visible light for osteochondral interface.

Recent advancements in tissue engineering have demonstrated a great potential for the fabrication of three-dimensional (3D) tissue structures such as cartilage and bone. However, achieving structural integrity between different tissues and fabricating tissue interfaces are still great challenges. In this study, ancrosslinked hybrid, multi-material 3D bioprinting approach was used for the fabrication of hydrogel structures based on an aspiration-extrusion microcapillary method.

Design and 3D Printing of Personalized Hybrid and Gradient Structures for Critical Size Bone Defects.

Treating critical-size bone defects with autografts, allografts, or standardized implants is challenging since the healing of the defect area necessitates patient-specific grafts with mechanically and physiologically relevant structures. Three-dimensional (3D) printing using computer-aided design (CAD) is a promising approach for bone tissue engineering applications by producing constructs with customized designs and biomechanical compositions. In this study, we propose 3D printing of personalized and implantable hybrid active scaffolds with a unique architecture and biomaterial composition for critical-size bone defects.