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Excellent Long-term Breast Preservation Rate After Accelerated Partial Breast Irradiation Using a Balloon Device.

BACKGROUND: Accelerated partial breast irradiation (APBI) using a balloon device has been well tolerated. A recent retrospective population- … balloon device. After lumpectomy and nodal staging, the patients underwent APBI with high-dose rate iridium-192 brachytherapy. A computed tomography-based 3-dimensional plan was created, and a dose of 34 Gy in 10 fractions was given twice daily, 6 hours apart, over 5 days. Follow-up examinations were performed 2 to 3 times annually by either a surgeon and …

Lack of the dose-rate effect of 192Ir source activity on pelvic control and late complications after high-dose-rate brachytherapy for cervical cancer.

This study aimed to assess the dose-rate effect of (192)Ir source activity on pelvic control and late complications following high-dose-rate intracavitary brachytherapy (HDRICB) for cervical cancer patients. Two hundred and twelve patients were enrolled in this study. They were treated with external beam radiotherapy to the pelvis, after which HDRICB was performed using (192)Ir remote after-loading at 1-week intervals for 4 or 5 sessions. Source activity was defined as the average of source activity in each HDRICB session. Dose-rate effect was analyzed after stratification of stage and biologi

Planar amorphous silicon carbide microelectrode arrays for chronic recording in rat motor cortex.

Chronic implantation of intracortical microelectrode arrays (MEAs) capable of recording from individual neurons can be used for the developm … le Sprague-Dawley rats. Each a-SiC MEA shank was 8 μm thick by 20 μm wide and had sixteen sputtered iridium oxide film (SIROF) electrodes (4 per shank). A-SiC was chosen as the fabrication base for its high chemical stability, good electrical insulation properties, and amenability to thin film fabrication. Electrochemical analysis and neural recordings we …

Concurrent definitive chemoradiation incorporating intensity-modulated radiotherapy followed by adjuvant chemotherapy in high risk locally advanced cervical squamous cancer: a phase II study.

BACKGROUND: Although the prognosis of locally advanced cervical cancer has improved dramatically, survival for those with stage IIIB-IVA dis … ~ 35 Gy high-dose- rate brachytherapy was prescribed to point A in 4 ~ 5 weekly fractions using an iridium- 192 source. Concurrent weekly intravenous cisplatin at 30 mg/m2 was initiated on the first day of radiotherapy for over 1-h during external-beam radiotherapy. Adjuvant chemotherapy was scheduled within 4 weeks after the completion of concurrent che …

Transplantation of the Stromal Vascular Fraction (SVF) Mitigates Severe Radiation-Induced Skin Injury.

Severe radiation-induced skin injury is a complication of tumor radiotherapy and nuclear accidents. Cell therapy is a potential treatment for radiation-induced skin injury. The stromal vascular fraction (SVF) is a newer material in stem cell therapy that is made up of stem cells harvested from adipose tissue, which has been shown to promote the healing of refractory wounds of different causes. In this study, SVF was isolated from patients with radiation-induced skin injury. Adipose-derived stem cells (ADSCs) accounted for approximately 10% of the SVF by flow cytometry. Compared with the contro

Orthotopic pleural mesothelioma in mice: SPECT/CT and MR imaging with HER1- and HER2-targeted radiolabeled antibodies.

PURPOSE: To evaluate the potential of anti-human epidermal growth factor receptor (HER)1- and anti-HER2-targeted radiolabeled antibodies and magnetic resonance (MR) imaging for imaging of orthotopic malignant pleural mesothelioma (MPM) in mouse models. MATERIALS AND METHODS: Animal studies with 165 mice were performed in accordance with National Institutes of Health guidelines for the humane use of animals, and all procedures were approved by the institutional Animal Care and Use Committee. Flow cytometry studies were performed to evaluate HER1 and HER2 expression in NCI-H226 and MSTO-211H me

[Comparison of uterine artery chemoembolization and internal iliac arterial infusion chemotherapy for the combining treatment for women with locally advanced cervical cancer].

BACKGROUND AND OBJECTIVE: Uterine artery chemoembolization (UACE) and internal iliac arterial infusion chemotherapy (IAIC) are important methods to treat cervical cancer. However, whether the curative efficacy of the two methods has difference is not clear. This study was to evaluate the curative effects of UACE and IAIC on the combining treatment for women with locally advanced cervical cancer. METHODS: One hundred and seventy-five patients with locally advanced cervical cancer treated between April 1997 and November 2007 were retrospectively analyzed. Patients were divided into two groups:

Preliminary results and evaluation of MammoSite balloon brachytherapy for partial breast irradiation for pure ductal carcinoma in situ: a phase II clinical study.

BACKGROUND: This report presents the preliminary results and evaluation of the MammoSite balloon catheter (MammoSite Radiation Therapy Syste … 4 Gy was delivered in 10 fractions over 5 days prescribed to 1 cm from the applicator surface using iridium-192 high-dose rate brachytherapy. Patients who met the following criteria were selected for enrollment into the study: age 45 years or older, unicentric pure DCIS, mammographic lesion of 3 cm or less, negative margins as defined by 1 mm or more, pos …

Local recurrences and distant metastases after breast-conserving surgery and radiation therapy for early breast cancer.

PURPOSE: To identify predicting factors for local failure and increased risk of distant metastases by statistical analysis of the data after … ed 50 Gy to the internal mammary lymph node area. A boost dose was delivered to the primary site by iridium 192 Implant in 298 patients (mean total dose: 15.2+/-0.07 Gy, range: 15-25 Gy) or by electrons in 225 patients (mean total dose: 14.8+/-0.09 Gy, range: 5-20 Gy). The mean age was 52.5+/-0.5 years (range: 26-86 years) and 267 patient were postmenopau …

Всеобъемлющий анализ перенаселенности клеток В у пациентов с множественным склерозом в результате массовой цитометрии и протеомики.

Ocrelizumab, анти-CD20 антитела, истощает клетки CD20+B, которые впоследствии перенаселяются в течение месяцев. Мало что известно об изменениях в других популяциях иммунных клеток и молекулярных маркерах, связанных с перенаселенностью клеток В. Здесь мы провели всеобъемлющую характеристику иммунных клеток пациентов с множественным склерозом (MS) при помощи массовой цитометрии. Около 50% пациентов показали наивную перенаселенность клеток B через 6 месяцев, главным образом с фенотипом переходного периода, в то время как CD27+ памяти B клетки только редко перенаселялись. Эта перенаселенность была

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… Cat# 501351696 Maxpar® Cell staining buffer Standard BioTools Cat# 201068 Methanol-free formaldehyde solution Fisher Scientific Cat# 10751395 Permeabilization buffer Thermo Fisher Scientific 00-8333-56 Iridium intercalator solution Standard BioTools 201192A Critical commercial assays Cell-ID 20-plex … Afterward, cells were washed twice with staining buffer, then re-suspended in 1 mL iridium intercalator solution (Fluidigm) and incubated for 30 min at room temperature. Next, the samples were washed twice with cell staining buffer. …

Remineralization of lytic spinal metastases after radiation therapy - A retrospective cohort study comparing conventional external beam radiation therapy with stereotactic ablative body radiation.

INTRODUCTION: Osteolytic spinal metastases (SM) have a higher risk of fracture. In this study we aim to confirm the remineralization of lytic SM after radiation therapy. Secondary the influence of SBRT compared to cEBRT and tumor type will be analyzed. METHODS: A retrospective cohort study was performed. RESULTS: 87 patients, 100 SM were included. 29 received SBRT, 71 cEBRT. Most common primary tumors were breast (35 %), lung (26 %) and renal (11 %). Both cEBRT and SBRT resulted in a significant increase of bone mineral density (BMD) (83.76 HU ± 5.72 → 241.41 HU ± 22.58 (p < 0.001) and 82.45

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… Patient selection All patients who underwent radiation therapy for SM within the Iridium Network, Belgium, between 01/01/2020 and 31/12/2022 were reviewed in a retrospective study. … This resulted in limited access to their medical records across the different hospitals of the Iridium Network. The quality of evidence is dependent on the accessibility and completeness of these records. …

Surgery for early and minimally invasive breast cancer.

An increasing number of early and minimally invasive breast cancers are being detected by mammography screening. The role of image-guided core biopsy in nonpalpable breast lesion evaluation is being defined, with issues of cost-effectiveness, diagnostic accuracy, and ability to direct definitive management remaining to be elucidated. The long-term efficacy of breast conservation therapy for early breast cancer continues to be confirmed. Review of special issues in breast conservation therapy demonstrates no benefit to eliminating adjunctive radiation therapy or to limiting therapy in the elder

Research progress in inducing immunogenic cell death of tumor cells.

Immunogenic cell death (ICD) is a regulated cell death (RCD) pathway. In response to physical and chemical signals, tumor cells activate specific signaling pathways that stimulate stress responses in the endoplasmic reticulum (ER) and expose damage-associated molecular patterns (DAMPs), which promote antitumor immune responses. As a result, the tumor microenvironment is altered, and many tumor cells are killed. The ICD response in tumor cells requires inducers. These inducers can be from different sources and contribute to the development of the ICD either indirectly or directly. The combinati

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… In addition to oxaliplatin ( 60 ), new metal-based inducers have been discovered, including iridium ( 81 ), ruthenium ( 82 ), and copper ( 84 ). … Ruthenium, iridium, and copper metal compounds are novel ICD inducers. …

Освещение нанотерапевтики с точными глазами: от оптического к радионаностантике.

Рак по-прежнему относится к числу самых смертоносных заболеваний во всем мире, унося много жизней из-за высоких показателей смертности. Химиотерапия, являющаяся одной из основных форм лечения рака, приносит значительные выгоды, однако ей мешают недостатки, которые ставят под угрозу качество жизни пациентов. Таким образом, разработка альтернатив минимально инвазивному лечению по-прежнему представляет собой серьезную проблему. Среди них наноматериалы, легкая фототерапия, включая фотодинамическую терапию, фототермальную терапию и радиотерапию, являются перспективными вариантами, обеспечивающими т

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… A hypoxia-activated, novel mitochondria-localized iridium (III) endoperoxide prodrug (2-O-IrAn) was designed for synergistic PDT and photoactivated CMT (PACT) was developed 76 . … Ke et al. developed a biodegradable iridium (III)-based coordination polymer NPs (IrS NPs) to improve PDT against cancer. These NPs remain stable in physiological conditions but break apart in the tumor environment, where they reduce glutathione (GSH) levels and release active iridium complexes. …

Nanogel-Based Precision Bone Regeneration: Rational Design, Biological Barrier Penetration, and Osteoporotic Microenvironment Remodeling.

The pathogenesis of osteoporosis is primarily associated with impaired communication between osteoblasts and osteoclasts, leading to disrupted bone homeostasis. Conventional biomaterials mainly rely on macroscopic structural support and are limited in their ability to precisely regulate the complex bone microenvironment and overcome biological barriers. As representative soft matter nanoplatforms, nanogels possess unique viscoelastic mechanical properties and adaptive biointerfacial properties, offering new opportunities to overcome physical barriers within bone tissues. Moving beyond previous

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… Studies have shown that 20 nm iridium nanoparticle aggregates exhibit higher transport efficiency than 80 nm aggregates in blood circulation and secondary organs. 97 Surface ligand engineering, such as P-selectin modification or fucosylation, can activate caveolin-1-dependent transcytosis pathways. … Size dependence of the translocation of inhaled iridium and carbon nanoparticle aggregates from the lung of rats to the blood and secondary target organs. Inhal Toxicol . 2009. 21;(Suppl 1):55–60. doi: 10.1080/08958370902942517 98. Tylawsky DE, Kiguchi H, Vaynshteyn J, et al. …

Реституция CXCR3+CCR6+T17.1-Like Клетки в ответ на офатумумабскую терапию у пациентов с множественным склерозом.

СПРАВОЧНАЯ ИНФОРМАЦИЯ И ЦЕЛИ: Офатумумаб, полностью человек anti-CD20 Моноклональная антитела эффективна в сокращении рецидивов и развития инвалидности у пациентов с множественным склерозом. Цель этого исследования состояла в изучении изменений иммунных характеристик, связанных с атумумабами, у будущей группы китайских пациентов с повторно излучающимся множественным склерозом (RRMS). МЕТОДЫ: Seventeen Пациенты РУМС были зачислены в это неконтролируемое, перспективное когортное исследование наблюдений (ОМНИСКЕННОЕ исследование) и получали регулярное подкожное лечение от атумумаба. Подмножества

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… For mass‐based cell detection, cells were stained with 500 μM nucleic acid intercalator iridium (191Ir and 193Ir, Fluidigm) in Fix and Perm Buffer (Fluidigm) overnight at 4°C. …

NEK2 регулирует функцию клеток B и остроту экспериментального аутоиммунного энцефаломиелита.

Никогда в гене митоза А (NIMA) 2 (NEK2) член семьи сереново-триониновая киназа принимает активное участие в регулировании клеточного цикла. Регулирование NEK2 связано с аномальным распространением клеток B, которое потенциально вызвано NEK2-mediated нарушение равновесия PKM1/PKM2. Чрезмерное выражение NEK2 в линии клеток B может облегчить процесс созревания клеток B. Тем не менее, точная роль НКЭК2 в модуляции иммунитета от аутоиммунных расстройств с помощью клеток В еще не полностью разъяснена. В этом исследовании мы продемонстрировали, что НКЭК2 была значительно усилена в отношении пациентов

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… Intracellular staining was performed using iridium dye (250 nM) and specific antibodies. Samples were acquired on a Helios CyTOF Mass Cytometer. …

Взаимодействие с Мозгом: Как нанотехнология может способствовать.

Соединение искусственных устройств с человеческим мозгом является главной целью нейротехнологий. Однако наше воображение часто ограничивается существующими парадигмами и технологиями. Со временем, наряду с имеющейся технологией, изменились предложения в отношении интерфейсов мозга и автомата. Механические рычаги и кабельные лебедки использовались для перемещения частей мозга в механическую эпоху. Сложное электронное проводка и дистанционное управление возникли в эпоху электронной связи, что в конечном счете привело к созданию компьютерных интерфейсов. Тем не менее, наши мозги настолько сложны,

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… (b) SEM image of an iridium oxide nanotube electrode (adapted with permission from Lin et al . 74 Copyright 2014 Springer Nature Limited). …

Organelle-oriented nanomedicines in tumor therapy: Targeting, escaping, or collaborating?

Precise tumor therapy is essential for improving treatment specificity, enhancing efficacy, and minimizing side effects. Targeting organelles is a key strategy for achieving this goal and is a frontier research area attracting a considerable amount of attention. The concept of organelle targeting has a significant effect on the structural design of the nanodrugs employed. Most notably, the intricate interactions among different organelles in a tumor cell essentially create a unified system. Unfortunately, this aspect might have been somewhat overlooked when existing organelle-targeting nanodru

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… Several DLCs have been reported, including the triphenylphosphonium (TPP) ion, dequalinium, cyclometalated iridium( iii ) complexes, berberine, rhodamine19, rhodamine123, and guanidine/biguanide [ [54] , [55] , [56] , [57] , [58] ]. … According to recent studies, metal complexes containing easily-modified coordination ligands and various transition metals, including iridium( iii ), gold( iii ), copper, europium, manganese, platinum, cobalt, nickel, zinc, rhodium, antimony, and osmium, exhibit the ability to target mitochondria [ 61 …

Breakthroughs in Medicinal Chemistry: New Targets and Mechanisms, New Drugs, New Hopes-5.

Breakthroughs in Medicinal Chemistry: New Targets and Mechanisms, New Drugs, New Hopes is a series of Editorials which is published on a biannual basis by the Editorial Board of the Medicinal Chemistry section of the journal Molecules [...].

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… To innovate this class of drugs, a wide range of metal-based complexes with ruthenium, rhodium, osmium, iridium, molybdenum, iron, gold, and copper has been designed [ 6 ]. …