261 research outputs found

    Study Clinical Symptoms and Para-Clinical Findings in Poisoning Patient with Aluminum Phosphide in Patients Referred to Imam Khomeini Hospital in Ardabil (Northwest of Iran)

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    Background: Aluminum phosphide is used in different area in Iran. According to that the herbal form of these pills are used increasingly, comparison and evaluation of these patients in terms of clinical and laboratory symptoms are important. We studied on clinical and Para-clinical findings in patients who had taken aluminum phosphide and its herbal form in this study.Methods: This is a descriptive and analytic study which carried out during 2006-2012. In this study, laboratory variables, white blood cell count, hematocrit, blood glucose, sodium, potassium and bicarbonate, arterial blood gas also clinical finding after taking aluminum phosphide pills, and vital signs of poisoned patients were extracted.Results: In this study 386 poisoned patients were evaluated. We divided poisoned patients in two groups, case and herbal. 35% had been taking original Aluminum phosphide (case group) and 65% herbal form (herbal group). In totally 18.7% of poisoned patients were male. The average age of patients in herbal group was 23.22 ±8.20 years and in case group was 24.78±7.04 years. In both groups, nausea and vomiting were the most prevalent clinical signs. Experiments in a separate group showed significant different in blood pressure upper (P<0.001), Po2 level lower (P<0.001), pH lower (P<0.001) and bicarbonate lower (P<0.001) but there was no significant difference in respiratory rate, temperature, hemoglobin level and hematocrit. Also was observed that 70.4% of patients in case group died but all patients in herbal group survived (P<0.001).Conclusion: The results of this study indicated that arterial blood gas of patients is a useful tool for differentiating oral poisoning with original and herbal rice pill. Hence, in patients with clinical toxicity of rice tablet can be used to differentiate these two tablets

    ASTCT consensus grading for cytokine release syndrome and neurologic toxicity associated with immune effector cells

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    Chimeric antigen receptor (CAR) T cell therapy is rapidly emerging as one of the most promising therapies for hematologic malignancies. Two CAR T products were recently approved in the United States and Europe for the treatment ofpatients up to age 25years with relapsed or refractory B cell acute lymphoblastic leukemia and/or adults with large B cell lymphoma. Many more CAR T products, as well as other immunotherapies, including various immune cell- and bi-specific antibody-based approaches that function by activation of immune effector cells, are in clinical development for both hematologic and solid tumor malignancies. These therapies are associated with unique toxicities of cytokine release syndrome (CRS) and neurologic toxicity. The assessment and grading of these toxicities vary considerably across clinical trials and across institutions, making it difficult to compare the safety of different products and hindering the ability to develop optimal strategies for management of these toxicities. Moreover, some aspects of these grading systems can be challenging to implement across centers. Therefore, in an effort to harmonize the definitions and grading systems for CRS and neurotoxicity, experts from all aspects of the field met on June 20 and 21, 2018, at a meeting supported by the American Society for Transplantation and Cellular Therapy (ASTCT; formerly American Society for Blood and Marrow Transplantation, ASBMT) in Arlington, VA. Here we report the consensus recommendations of that group and propose new definitions and grading for CRS and neurotoxicity that are objective, easy to apply, and ultimately more accurately categorize the severity of these toxicities. The goal is to provide a uniform consensus grading system for CRS and neurotoxicity associated with immune effector cell therapies, for use across clinical trials and in the postapproval clinical setting

    A Comparative Study of Different Phase Detrending Algorithms for Scintillation Monitoring

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    Rapid and sudden fluctuations of phase and amplitude in Global Navigation Satellite System (GNSS) signals due to diffraction of the ionosphere phase components when signals passing through small-scale irregularities (less than hundreds meters) are commonly so-called ionospheric scintillation. The aim of the paper is to analyze the implementation and compare the performance of different phase detrending algorithms to improve scintillation monitoring. Three different phase detrending methods, namely, three cascaded second-order high pass filters, six order Butterworth filter conducted by cascading six first-order high pass Butterworth filters, and Fast Iterative Filter (FIF) are considered in this paper. The study exploits real GNSS signals (GPS L1, Galileo E1b) affected by significant phase scintillation effects, collected in early September 2017 at Brazilian Centro de Radioastronomia e Astrofisica Mackenzie (CRAAM) monitoring station and at Adventdalen (Svalbard, Norway) research station. In this study, a software defined radio (SDR) based GNSS receiver is used to process GNSS signals and to implement the aforementioned detrending algorithms

    A systematic framework for predictive biomarkers in immune effector cell-associated neurotoxicity syndrome

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    Chimeric antigen receptor (CAR)-T cell therapy has revolutionized the management of several life-threatening malignancies, often achieving durable sustained responses. The number of patients treated with this new class of cell-based therapy, along with the number of Food and Drug Association (FDA) approved indications, are growing significantly. Unfortunately Immune Effector Cell-Associated Neurotoxicity Syndrome (ICANS) can often occur after treatment with CAR-T cells, and severe ICANS can be associated with significant morbidity and mortality. Current standard treatments are mainly steroids and supportive care, highlighting the need for early identification. In the last several years, a range of predictive biomarkers have been proposed to distinguish patients at increased risk for developing ICANS. In this review, we discuss a systematic framework to organize potential predictive biomarkers that builds on our current understanding of ICANS

    The effect of aromatherapy massage with lavender and chamomile oil on anxiety and sleep quality of patients with burns

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    Introduction: Regarding the importance of anxiety management and improvement of the quality of sleep in patients with burn injuries, this study aimed to determine the effect of aromatherapy massage (using aromatic oils of lavender and chamomile) on the anxiety and sleep quality of the patients with burn injuries. Method: In a quasi-experimental study, 105 patients with burns were recruited by convenience sampling method and then assigned into three groups (control, placebo massage, and combined aromatic oil massage). The study intervention was performed 20 min before bedtime in three sessions, within a week. The control group was only under daily routine care. The study data were collected using the Persian version of Spielberg's anxiety scale and the Pittsburgh Sleep Quality Inventory. Descriptive and inferential statistical tests were used to analyze the data in SPSS version 20. Results: The results showed a significant difference among the three groups in terms of anxiety score (P < 0.001) and in terms of sleep quality after the intervention (P = 0.027). Conclusion: Since the aromatherapy massage as a non-pharmacological and simple method can improve the anxiety and quality of sleep in patients with burns, it is suggested that nurses and burn medical care team apply it to reduce burn patients� anxiety and promote their sleep quality. Applying massage alone also reduces anxiety in burn survivors. © 2019 Elsevier Ltd and ISB

    Dynamics of levitated nanospheres: towards the strong coupling regime

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    The use of levitated nanospheres represents a new paradigm for the optomechanical cooling of a small mechanical oscillator, with the prospect of realising quantum oscillators with unprecedentedly high quality factors. We investigate the dynamics of this system, especially in the so-called self-trapping regimes, where one or more optical fields simultaneously trap and cool the mechanical oscillator. The determining characteristic of this regime is that both the mechanical frequency ωM\omega_M and single-photon optomechanical coupling strength parameters gg are a function of the optical field intensities, in contrast to usual set-ups where ωM\omega_M and gg are constant for the given system. We also measure the characteristic transverse and axial trapping frequencies of different sized silica nanospheres in a simple optical standing wave potential, for spheres of radii r=20500r=20-500\,nm, illustrating a protocol for loading single nanospheres into a standing wave optical trap that would be formed by an optical cavity. We use this data to confirm the dependence of the effective optomechanical coupling strength on sphere radius for levitated nanospheres in an optical cavity and discuss the prospects for reaching regimes of strong light-matter coupling. Theoretical semiclassical and quantum displacement noise spectra show that for larger nanospheres with r100r \gtrsim 100\,nm a range of interesting and novel dynamical regimes can be accessed. These include simultaneous hybridization of the two optical modes with the mechanical modes and parameter regimes where the system is bistable. We show that here, in contrast to typical single-optical mode optomechanical systems, bistabilities are independent of intracavity intensity and can occur for very weak laser driving amplitudes

    Additive manufacturing of bioactive glass biomaterials

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    Tissue engineering (TE) and regenerative medicine have held great promises for the repair and regeneration of damaged tissues and organs. Additive manufacturing has recently appeared as a versatile technology in TE strategies that enables the production of objects through layered printing. By applying 3D printing and bioprinting, it is now possible to make tissue-engineered constructs according to desired thickness, shape, and size that resemble the native structure of lost tissues. Up to now, several organic and inorganic materials were used as raw materials for 3D printing; bioactive glasses (BGs) are among the most hopeful substances regarding their excellent properties (e.g., bioactivity and biocompatibility). In addition, the reported studies have confirmed that BG-reinforced constructs can improve osteogenic, angiogenic, and antibacterial activities. This review aims to provide an up-to-date report on the development of BG-containing raw biomaterials that are currently being employed for the fabrication of 3D printed scaffolds used in tissue regeneration applications with a focus on their advantages and remaining challenges

    Combination of Nigella sativa and honey in eradication of gastric helicobacter pylori infection

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    Background: Gastric Helicobacter pylori is extremely common worldwide. Objectives: The aim of this study was to assess the effectiveness of combination of Nigella sativa and honey (Dosin) in eradication of gastric H. pylori infection. Patients and Methods: Nineteen patients who had positive result for H. pylori infection by urea breath test (UBT) without a past history of peptic ulcer, gastric cancer or gastrointestinal bleeding, were suggested to receive one teaspoon of the mixture of Dosin (6 g/day of N. sativa as ground seeds and 12 g/day of honey) three times a day after meals for two weeks. The second UBT was used to detect the presence of H. pylori four weeks after completion of the test. In addition, symptoms of dyspepsia were scored before and after the study and analyzed with Wilcoxon signed-rank test Results: Fourteen patients completed the study. Negative UBT was observed in 57.1 (8/14) of participants after intervention. The median and interquartile range (IQR) of total dyspepsia symptoms was significantly reduced from 5.5 (5 -12) to 1 (0 -4) (P = 0.005). All the patients tolerated Dosin except for one who was excluded due to mild diarrhea. No serious adverse events were reported. Conclusions: Dosin was concluded to be an anti H. pylori and an anti-dyspeptic agent. Further studies are recommended to investigate the effect of Dosin plus antibiotics (concurrently or following another) on gastric H. pylori infection. � 2016, Iranian Red Crescent Medical Journal
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