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Разработка и оценка [11С]DPA-813 и [18F]DPA-814: новые индикаторы PET, не чувствительные к единому нуклеотидному полиморфизму человека, Rs6971.

P ЦЕЛЬ: Протеин транслокатора 18 кДа (TSPO) — широко используемый маркер для визуализации нейроинфламмации через Томографию позитронных выбросов (PET). Однако подавляющее большинство сообщаемых индикаторов PET TSPO демонстрируют низкую связь с общей изоформой человека TSPO (rs6971; A147T), что делает их непригодными для всеобщего использования среди населения в целом. В этом исследовании мы разработали и проконтролировали два новых индикатора, предназначенных для изображения TSPO у пациентов всех генотипов.МЕТОДЫ: Новые аналоги известных лигандов TSPO были синтезированы, оценены с точки зрения

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… Dynamic PET imaging was acquired using small animal NanoPET/CT and NanoPET/MR scanners (Mediso Ltd., Budapest, Hungary) equipped with similar PET detectors. 2–4% isoflurane in oxygen (1 L/min) was used to anesthetize the animals. …

The Influence of Local Pamidronate Application on Alveolar Dimensional Preservation after Tooth Extraction-An Animal Experimental Study.

The aim of this randomized, controlled animal exploratory trial was to investigate the influence of local application of aminobisphosphonate pamidronate during the socket preservation procedure. Mandibular premolars were extracted in five Göttingen minipigs. Two animals underwent socket preservation using BEGO OSS (n = 8 sockets) and three animals using BEGO OSS + Pamifos (15 mg) (n = 12 sockets). After jaw impression, cast models (baseline, eight weeks postoperative) were digitized using an inLab X5 scanner (Dentsply Sirona) and the generated STL data were superimposed and analyzed with GOM I

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… Anesthesia was maintained with 1.5% isoflurane (Baxter Deutschland GmbH, Unterschleißheim, Germany). …

Overcoming resistance to anabolic SARM therapy in experimental cancer cachexia with an HDAC inhibitor.

No approved therapy exists for cancer-associated cachexia. The colon-26 mouse model of cancer cachexia mimics recent late-stage clinical failures of anabolic anti-cachexia therapy and was unresponsive to anabolic doses of diverse androgens, including the selective androgen receptor modulator (SARM) GTx-024. The histone deacetylase inhibitor (HDACi) AR-42 exhibited anti-cachectic activity in this model. We explored combined SARM/AR-42 therapy as an improved anti-cachectic treatment paradigm. A reduced dose of AR-42 provided limited anti-cachectic benefits, but, in combination with GTx-024, sign

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… Mice were briefly anesthetized (isoflurane) during administration of drugs (AR‐42, GTx‐024, vehicles) by oral gavage. … Confirmation of anabolic activity of 15 mg/kg GTx‐024 Eight‐week‐old, male, tumor‐free CD2F1 mice were surgically castrated under isoflurane anesthesia. …

Regulating the regulators: long non-coding RNAs as autophagic controllers in chronic disease management.

The increasing prevalence of chronic diseases and their associated morbidities demands a deeper understanding of underlying mechanism and causative factors, with the hope of developing novel therapeutic strategies. Autophagy, a conserved biological process, involves the degradation of damaged organelles or protein aggregates to maintain cellular homeostasis. Disruption of this crucial process leads to increased genomic instability, accumulation of reactive oxygen species (ROS), decreased mitochondrial functions, and suppression of ubiquitination, leading to overall decline in quality of intrac

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… Further, lncRNA BACE1-AS was found to modulate the levels of miR-214-3p, thereby regulating the isoflurane-induced neurotoxicity in Alzheimer’s disease [ 284 ]. Approximately 1% of individuals over the age of 60 are affected by Parkinson’s disease globally. …

Exploring the mechanism of rosmarinic acid in the treatment of lung adenocarcinoma based on bioinformatics methods and experimental validation.

ObjectiveRosmarinic acid (RosA) is a natural polyphenol compound that has been shown to be effective in the treatment of inflammatory disease and a variety of malignant tumors. However, its specific mechanism for the treatment of lung adenocarcinoma (LUAD) has not been fully elucidated. Therefore, this study aims to clarify the mechanism of RosA in the treatment of LUAD by integrating bioinformatics, network pharmacology and in vivo experiments, and to explore the potential of the active ingredients of traditional Chinese medicine in treating LUAD.MethodsFirstly, the network pharmacology was u

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… Before the operation, mice were anesthetized by inhaling 2% isoflurane for 2–3 min. After operation, mice were euthanized using the rapid cervical dislocation method. The maximum tumor size/burden allowed by the Ethics Committee for mice is 2000 mm 3 , which was not exceeded in our study. …

Нейроинфламмация вызывает митральную дисфункцию клеток и обонятельное расстройство в множественной склерозовой модели.

Олокационная дисфункция является недооцененным симптомом множественного склероза (МС). Здесь мы изучили патогенные механизмы, лежащие в основе вызванной воспалением дисфункции обонятельной луковицы, используя животную модель MS, экспериментальный аутоиммунный энцефаломиелит (EAE). Результаты: Сокращенная обонятельная функция в EAE была связана с дегенерацией короткоаксоновых нейронов, незрелых нейронов, а также как митральных, так и тушёных клеток наряду с их синаптическим взаимодействием и аксонным репертуаром. Чтобы расчленить механизмы, лежащие в основе восприимчивости митральных клеток, гл

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… Experimental autoimmune encephalomyelitis For the induction of EAE 9–11-week-old female C57BL/6 J mice were anesthetized with isoflurane 1% to 2% v/v oxygen and immunized subcutaneously with 200 µg myelin oligodendrocyte glycoprotein 35–55 (MOG35–55) peptide (peptides and elephants) in emulsion with …

Novel Interleukin-6 Inducible Gene PDZ-Binding Kinase Promotes Tumor Growth of Multiple Myeloma Cells.

[Figure: see text] Multiple myeloma (MM) remains an intractable hematological malignancy, despite recent advances in anti-MM drugs. Here, we show that role of PDZ binding kinase (PBK) in MM tumor growth. We identified that interleukin-6 (IL-6) readily increases PBK expression. Kaplan-Meier analysis showed that the MM patients with higher expression of PBK have a significant shorter survival time compared with those with moderate/lower expression of PBK. Knockout of PBK dramatically suppressed in vivo tumor growth in MM cells, while genome editing of PBK changing from asparagine to serine subst

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… The central disruption (cervical dislocation) method was used as the method of euthanasia under anesthesia with isoflurane. After that, the cancer tissue was collected, total RNA and protein were extracted, and used for biochemical analysis. …

Дифференцированное выражение и модуляция ЭБИ2 и 7α,25-OHC синтезирующих (CH25H, CYP7B1) и унижающих достоинство (HSD3B7) ферментов в мышах и человеческих сосудистых клетках.

Внутренние лиганды рецептора EBI2, оксистерина 7α,25OHC, имеющие решающее значение для иммунной реакции, тщательно регулируются ферментами CH25H, CYP7B1 и HSD3B7. Линфоидные стромальные клетки и фолликулярные дендритические клетки внутри Т-клеток поддерживают градиент 7α,25OHC, при этом стромальные клетки увеличиваются, а дендритные клетки уменьшают их концентрацию. Этот градиент имеет ключевое значение для надлежащего размещения клеток В в лимфоидной ткани. В животной модели множественного склероза экспериментальный аутоиммунный энцефаломиэлит, уровни 7α,25OHC быстро увеличиваются в центральн

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… The mice were anaesthetised with isoflurane and perfused with NaCl for subsequent biochemical analysis or 2% paraformaldehyde (PFA) for immunohistochemistry (IHC). …

Гастродин поощряет миелиогенез CNS и смягчает демиелионирующее повреждение путем активации сигнала PI3K/AKT/mTOR.

Демиелинция является общей особенностью многочисленных неврологических расстройств, включая множественный склероз и лейкодистрофию. Хотя миелин может быть регенерирован самопроизвольно после травмы, этот процесс зачастую является неадекватным, что может привести к нейродегенерации и обострению неврологической дисфункции. Ряд наркотиков, направленных на содействие дифференциации клеток-прекурсоров олигодендроцитов (ОПК), привели к неудовлетворительным клиническим последствиям. В одном из недавних исследований стратегия дифференциации в пользу ОПС была переориентирована на укрепление миелиногене

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… Mice were deeply anaesthetized with 1.5% isoflurane in 30% oxygen. After exposing the skull, a 34-gauge Hamilton syringe was inserted into the following coordinates: 1.0 mm anterior and 1.0 mm lateral to bregma; 1.9 mm depth from the surface of the skull. 1 μL of 1% LPC (L4129, Sigma-Aldrich, St. …

Diagnostic benefits of platelet-to-lymphocyte, neutrophil-to-lymphocyte, and albumin-to-globulin ratios in dogs with nasal cavity diseases.

BACKGROUND: A multimodal approach for diagnostic tests under anesthesia is required to diagnose nasal cavity pathology (NP) reliably in dogs. Blood test results may provide clues to the suspected NP. METHODS: This prospective blinded study assessed 72 dogs with chronic nasal discharge due to NPs, and 10 healthy dogs as the control group (CG). NPs were diagnosed using whole-body computed tomography (CT), upper airway endoscopy, examination of nasal mucosal swabs by bacterial and fungal culture, and histopathological examination of nasal mucosa biopsies. The exclusion criteria were the presence

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… All animals were endotracheally intubated, and anesthesia was maintained with isoflurane (2 vol% vaporizer setting; IsoFlo ® , Essex Tierarznei, Munich, Germany) in 50 vol% oxygen under volume-controlled intermittent positive pressure ventilation. …

Differential Pain-Related Behaviors and Bone Disease in Immunocompetent Mouse Models of Myeloma.

Bone pain is a serious and debilitating symptom of multiple myeloma (MM) that impairs the quality of life of patients. The underlying mechanisms of the pain are unknown and understudied, and there is a need for immunocompetent preclinical models of myeloma-induced bone pain. The aim of this study was to provide the first in-depth behavioral characterization of an immunocompetent mouse model of MM presenting the clinical disease features: osteolytic bone disease and bone pain. We hypothesized that a widely used syngeneic model of MM, established by systemic inoculation of green fluorescent prot

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… week‐old awake BKAL mice; in the localized model, 5TGM1‐GFP cells (5 × 10 4 /10 μL; n = 29) or vehicle (saline; n = 16) were inoculated in the intramedullary femoral cavity, as previously described in models of cancer‐induced bone pain. 24 Briefly, 5‐ or 6‐week‐old mice were rapidly anesthetized with 4% isoflurane …

Enhancement of pomalidomide anti-tumor response with ACY-241, a selective HDAC6 inhibitor.

Thalidomide-based Immunomodulatory Drugs (IMiDs®), including lenalidomide and pomalidomide, are effective therapeutics for multiple myeloma. These agents have been approved with, or are under clinical development with, other targeted therapies including proteasome inhibitors, αCD38 monoclonal antibodies, as well as histone deacetylase (HDAC) inhibitors for combination therapy. HDAC inhibitors broadly targeting Class I and IIb HDACs have shown potent preclinical efficacy but have frequently demonstrated an undesirable safety profile in combination therapy approaches in clinical studies. Therefo

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… Animals on this study were euthanized by exposure to an overdose of isoflurane consistent with the AVMA Guidelines of Euthanasia for the Euthanasia of Animals: 2013 Edition. …

Combinatorial targeting of cancer bone metastasis using mRNA engineered stem cells.

BACKGROUND: Bone metastases are common and devastating to cancer patients. Existing treatments do not specifically target the disease sites and are therefore ineffective and systemically toxic. Here we present a new strategy to treat bone metastasis by targeting both the cancer cells ("the seed"), and their surrounding niche ("the soil"), using stem cells engineered to home to the bone metastatic niche and to maximise local delivery of multiple therapeutic factors. METHODS: We used mesenchymal stem cells engineered using mRNA to simultaneously express P-selectin glycoprotein ligand-1 (PSGL-1)

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… Isoflurane was purchased from Piramal Healthcare. Ketamine, xylazine, and buprenorphine were purchased from Western Medical Supply. d -luciferase was purchased from Perkin Elmer. … Animal experiments Animal subjects were first sedated in a chamber, then kept under a nosecone for the procedures, using either 2% isoflurane mixed with 2 L/min O 2 , or by intraperitoneal ( i.p. ) injection of a 100 mg/kg ketamine and 10 mg/kg xylazine mixture. …

Erratum: Rat Model of Normothermic Ex-Situ Perfused Heterotopic Heart Transplantation.

An erratum was issued for: Rat Model of Normothermic Ex-Situ Perfused Heterotopic Heart Transplantation. The Protocol section was updated. S … he postoperative examinations till the body temperature reaches 37°C. Maintain anesthesia at 2-2.5% isoflurane until the end of the experiments. Monitor ECG of the transplanted donor heart for 3 h. Then, excise the heart under deep anesthesia for histological studies. NOTE: Confirm anesthesia depth via lack of pedal reflex before excising the heart. The surg …

Mobilizing stem cells and inhibition of autoimmunity synergistically modify autoimmune disease to relieve pain: a potential MRG-001 therapy for rheumatoid arthritis.

OBJECTIVES: Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by persistent synovial inflammation, bone erosion, cartilage destruction, and debilitating pain. Current therapies often fall short in preventing structural damage and restoring immune balance. To address these limitations, we evaluated MRG-001 - a fixed-dose combination of plerixafor (AMD3100) and low-dose tacrolimus (FK506) with reported immunoregulatory and regenerative potential - in preclinical models of RA. METHODS: The therapeutic efficacy of MRG-001 was assessed in collagen-induced arthritis and collag

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… At the study endpoint, mice were euthanized using an overdose of isoflurane and perfused with phosphate-buffered saline (PBS), with or without 4% paraformaldehyde (PFA), depending on downstream analyses. Tissues were collected for histological, molecular, and imaging studies. …

Протеомический анализ показывает, что потенциальные молекулы могут выступать посредником в кортикальной патологии и выявлять возможные биомаркеры в животной модели множественного склероза.

ВВЕДЕНИЕ: Множественный склероз (MS) представляет собой сложное нейродегенеративное заболевание, характеризующееся повторяющимися вспышками, обезвоживанием, повреждением аксона и последующей потерей функции. MS представляет широкий спектр клинических курсов, прогрессивные формы которых приводят к необратимой неврологической инвалидности. Кортикальные демиелионирующие повреждения имеют ключевое значение для патологии этих прогрессивных форм, и в последние десятилетия они приобретают решающее значение в силу их тесной связи с физической инвалидностью и когнитивным упадком. Несмотря на это, механ

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… The animals were anesthetized for a short period of time by inhalation of Isoflurane; once asleep, they were placed under light and the lateral tail vein was located and the injection was performed with a 27G needle: first, they were passed 300 μL of the adenovector at a concentration of 1.4 × 10 9 …

OCA-B promotes pathogenic maturation of stem-like CD4+ T cells and autoimmune demyelination.

Stem-like T cells selectively contribute to autoimmunity, but the activities that promote their pathogenicity are incompletely understood. Here, we identify the transcription coregulator OCA-B as a driver of the pathogenic maturation of stem-like CD4+ T cells to promote autoimmune demyelination. Using 2 human multiple sclerosis (MS) datasets, we show that POU2AF1, the gene encoding OCA-B, is elevated in CD4+ T cells from patients with MS. We show that T cell-intrinsic OCA-B loss protects mice from experimental autoimmune encephalomyelitis (EAE) while preserving responses to viral CNS infection

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… Ocab fl/fl and Ocab fl/fl ;CD4-Cre C57BL/6 mice were anesthetized using isoflurane. Mice were intracranially injected with 1500 PFU of JHMV (strain V34) suspended in 30 μL of Hank’s balanced salt solution (Thermo Fisher). …

Является ли изменение миелинодегенеративное изменение, связанное с возрастом, первоначальным фактором риска нейродегенеративных заболеваний?

Myelination, непрерывное покрытие нейронных аксонов, является пожизненным процессом в нервной системе, который необходим для точного, темпорального пространственного проведения потенциалов действий между нейронами. Myelin также оказывает межклеточную метаболическую поддержку аксонам. Даже незначительные нарушения целостности миелина могут ухудшить нейронные характеристики и повысить подверженность неврологическим заболеваниям. На самом деле, дегенерация миелина — это хорошо известное нейропологическое заболевание, связанное с нормальным старением и несколькими нейродегенеративными заболеваниям

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… These studies, which used in vivo magnetic resonance spectroscopy, revealed increased levels of brain lactate in mutant mice compared to controls, although this was only observed in mice subjected to volatile anesthetics such as isoflurane (Fünfschilling et al., 2012; Li and Sheng, 2023; Nave et al …

Sacubitril/Valsartan Ameliorates Crizotinib-Induced Cardiotoxicity in Mice.

BackgroundLung cancer is one of the major cause of death globally. Crizotinib is a first-line drug used in treating non-small-cell lung cancer (NSCLC). However, the pathophysiological mechanisms underlying its cardiotoxicity are unknown. This study investigated the mechanisms of crizotinib-induced cardiotoxicity and explored whether this toxicity can be prevented by the angiotensin receptor/neprilysin inhibitor sacubitril/valsartan.MethodsMale C57BL/6 mice were randomly divided into three groups: control, crizotinib (40 mg ⋅ kg - 1 ⋅ d - 1 for four weeks), and crizotinib + sacubitril/valsartan

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… their systolic, diastolic and mean arterial blood pressure (SBP, DBP and MBP, respectively) were recorded by using tail sleeve plethysmography (BP98AL, Softron, Tokyo, Japan). 2.3 Echocardiography After weighing mice, chest hair was removed with a hair removal cream, followed by anesthesia with 2% isoflurane …

Микроглиатоподобные чувствительности ограничивают ремиилизацию через сенсацию, связанную с фенотипом фенория.

Способность регенерировать миелин в центральной нервной системе снижается с возрастом. Это сокращение особенно заметно в случае множественного склероза (MS), хронического заболевания демиелином. Независимо от того, способствует ли клеточная сенсация, являющаяся отличительной чертой старения, нарушению воспоминаний, до сих пор неизвестно. Здесь мы показываем, что яркие клетки накапливаются в демиелинированных повреждениях после травмы, а лечение сенолитами усиливает ремиэлизацию у молодых и средних мышей, но не пожилых мышей. В юных мышах мы наблюдаем за тем, как корректируются стенограммы, свя

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… Euthanasia was administered with 3% isoflurane followed by perfusion and cervical dislocation. Mice of both sexes were used for all experiments. Despite MS predominantly occurring in females, we did not have statistical power to differentiate the effects of sex. …