attention deficit hyperactivity disorder/hypoxie

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Neonatal hypoxia-ischemia induces attention-deficit hyperactivity disorder-like behavior in rats.

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Attention-deficit hyperactivity disorder (ADHD) may be caused by genetic or environmental factors. Among environmental factors, perinatal complications are related, such as neonatal hypoxia-ischemia (HI). Thus, the aim of this study was to investigate whether HI contributes to the development of

FMISO-PET-based lymph node hypoxia adds to the prognostic value of tumor only hypoxia in HNSCC patients.

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OBJECTIVE This secondary analysis of the prospective study on repeat [18F]fluoromisonidazole (FMISO)-PET in patients with locally advanced head and neck squamous cell carcinomas (HNSCC) assessed the prognostic value of synchronous hypoxia in primary tumor (Tu) and lymph node metastases (LN), and

Hypoxemia adds to the CURB-65 pneumonia severity score in hospitalized patients with mild pneumonia.

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BACKGROUND Hypoxemia may influence the prognosis of patients with mild pneumonia, regardless of the initial CURB-65 score (confusion, blood urea nitrogen > 20 mg/dL, respiratory rate > 30 breaths/min, blood pressure < 90/60 mm Hg, and age ≥ 65 y). OBJECTIVE To determine the risk factors associated

Glucose and Intermediary Metabolism and Astrocyte-Neuron Interactions Following Neonatal Hypoxia-Ischemia in Rat.

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Neonatal hypoxia-ischemia (HI) and the delayed injury cascade that follows involve excitotoxicity, oxidative stress and mitochondrial failure. The susceptibility to excitotoxicity of the neonatal brain may be related to the capacity of astrocytes for glutamate uptake. Furthermore, the neonatal brain

Hypoxia increases insulinlike growth factor gene expression in rat osteoblasts.

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Vascular disruption secondary to fracture leads to a hypoxic zone of injury where the oxygen tension at the center of the wound is quite low. In this dynamic microenvironment, a number of growth factors are elaborated to stimulate the synthetic processes of fracture repair. Previously the authors

Targeting castration-induced tumour hypoxia enhances the acute effects of castration therapy in a rat prostate cancer model.

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What's known on the subject? and What does the study add? Castration therapy has rather modest effects on cell death in tumours but can be enhanced by other treatments targeting tumour stroma and vasculature. This study shows that the prostate becomes hypoxic following castration and that targeting

Lack of prognostic effect of carbonic anhydrase-9, hypoxia inducible factor-1α and bcl-2 in 286 patients with early squamous cell carcinoma of the glottic larynx treated with radiotherapy.

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OBJECTIVE To evaluate the prognostic significance of potential tumour markers of hypoxia and apoptosis in early squamous cell carcinoma of the glottic larynx managed with radiotherapy. METHODS In total, 382 patients with T1 and T2 squamous cell carcinoma of the glottic larynx (vocal cords) received

The heterogeneous immune microenvironment in breast cancer is affected by hypoxia-related genes.

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The immune system constitutes an important first-line defence against malignant transformation. However, cancer mediated immunosuppression inactivates the mechanisms of host immune surveillance. Cancer cells shut down anti-cancer immunity through direct cell-cell interactions with leukocytes and

Hypoxia/Hypoxemia-Induced activation of the procoagulant pathways and the pathogenesis of ischemia-associated thrombosis.

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Although oxygen deprivation has long been associated with triggering of the procoagulant pathway and venous thrombosis, blood hypoxemia and stasis by themselves do not lead to fibrin formation. A pathway is outlined through which diminished levels of oxygen activate the transcription factor early

Reciprocal relationship between expression of hypoxia inducible factor 1alpha (HIF-1alpha) and the pro-apoptotic protein bid in ex vivo colorectal cancer.

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Hypoxia inducible factor 1 (HIF-1) represses the transcription of pro-apoptotic bid in colorectal cancer cells in vitro. To assess the clinical relevance of this observation, HIF-1alpha and Bid were assessed in serial sections of 39 human colorectal adenocarcinomas by immunohistochemistry. In high

[Effects of hypoxia on the expression of CCR7 and proliferation, invasiveness of A549 cells.].

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BACKGROUND It has been proven that hypoxia could promote tumor cells invasion and metastasis by different mechanisms, but the relationship between hypoxia and CCR7 have not been reported. The aim of this investigate is to evaluate the effects of hypoxia on the expression of CCR7 and the invasiveness

Short-term outcomes of remote ischemic postconditioning 1 h after perinatal hypoxia-ischemia in term piglets.

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We aimed to assess remote ischemic postconditioning (RIPC) as a neuroprotective strategy after perinatal hypoxia-ischemia (HI) in a piglet model.Fifty-four newborn piglets were subjected to global HI for 45 min. One hour after HI, piglets were randomized to

[Effect of hypercapnic hypoxia on chronic abacterial prostatitis].

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OBJECTIVE To improve treatment results of patients with CAP using hypercapnic hypoxia as a part of an integrated therapy. METHODS The study involved 37 men aged 20 to 50 years diagnosed with CAP. The subjects were randomly divided into 2 groups. The control group consisted of 17 (46%) patients who

Metabolic and heart rate responses to hypoxia in early chicken embryos in the transition from diffusive to convective gas transport.

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Measurements of normoxic, hypoxic (15% or 10% O₂) and post-hypoxic oxygen consumption (VO₂) were conducted in chicken embryos every other day between embryonic day 3 (E3) and day 19 (E19), out of a total embryogenic period of 20.5 days. The results indicated that, irrespective of age, hypoxia

The role of ethanol in diluents of drugs that protect mice from hypoxia.

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This study evaluates the hypothesis that ethanol alone, or in diluents for drugs used to protect hypoxic mice, is responsible in part for an increased tolerance to hypoxia (4-5% oxygen). The change in hypoxic tolerance following i.v. or i.p. administration of ethanol, diazepam, nimodipine and

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