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  1. Article ; Online: Comparison of different infiltration amounts of CeO2 inside Ni-YSZ anodes to improve stability and efficiency of Single-Chamber SOFCs operating in methane

    d’Andrea Giovanni / Squizzato Enrico / Glisenti Antonella

    E3S Web of Conferences, Vol 334, p

    2022  Volume 04009

    Abstract: Electrochemically active oxide-based anodes capable of working in Single-Chamber Solid Oxide Fuel Cells (SC-SOFCs) were developed. Their performance is related to the selectivity of the electrodes. Tests are carried out on lab-scale devices with YSZ ... ...

    Abstract Electrochemically active oxide-based anodes capable of working in Single-Chamber Solid Oxide Fuel Cells (SC-SOFCs) were developed. Their performance is related to the selectivity of the electrodes. Tests are carried out on lab-scale devices with YSZ pellets as solid electrolytes in electrolyte supported cells. Selecting methane as a fuel, a gas mixture in the ratio CH4/O2 = 2 was chosen. The Ni-YSZ (NiO:YSZ=60:40) anode was optimized through CeO2 nanocatalysts infiltration to enhance the anode catalytic activity and make its reduction easier. Several infiltration amounts were compared, from null to 15% of the electrode weight. Both symmetric and complete cells (with LSCF-based cathodes) were tested in H2 and CH4/O2. For increasing amounts of infiltrated CeO2, symmetric cells tests describe an area specific resistance (ASR) reduction from 40 Ω cm2 to 1.7 Ω cm2 in hydrogen and from 11 Ω cm2 to 3.9 Ω cm2 in the methane/oxygen mixture. While complete cells tests displayed an ASR drop from 30 Ω cm2 to 2.9 Ω cm2 in H2, and from 8.7 Ω cm2 to 4.3 Ω cm2 in the methane/oxygen mixture, while OCP and power grew from 478 mV and 3.7 mW cm-2 to 766 mV and 13 mW cm-2.
    Keywords Environmental sciences ; GE1-350
    Subject code 500
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Elusive amines: migraine depends on biochemical abnormalities.

    D'Andrea, Giovanni / Gucciardi, Antonina / Leon, Alberta

    Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

    2022  Volume 43, Issue 11, Page(s) 6299–6304

    Abstract: The pathogenesis of migraine, as well as cluster headache (CH), is yet a debated question. In this review, we discuss the possible role of tyrosine and tryptophan metabolism in the pathogenesis of primary headaches, including the abnormalities in the ... ...

    Abstract The pathogenesis of migraine, as well as cluster headache (CH), is yet a debated question. In this review, we discuss the possible role of tyrosine and tryptophan metabolism in the pathogenesis of primary headaches, including the abnormalities in the synthesis of neurotransmitters. High level of dopamine, low level of norepinephrine, and very elevated levels of octopamine and synephrine were found in the plasma of episodic migraine without aura. We hypothesize that the imbalance between the levels of neurotransmitters and elusive amines synthesis is due to a metabolic shift directing tyrosine toward increased decarboxylase and reduced hydroxylase enzyme activities, favored by a state of neuronal hyperexcitability and a reduced mitochondrial activity. In addition, we present biochemical studies performed in chronic migraine (CM) and chronic tension-type headache patients (CTTH) to verify if the same anomalies are present in these primary headaches and, if so, their possible role in the chronicity process of CM and CTTH. The results show that important abnormalities of tyrosine-related metabolites are present only in CM patients while tryptamine plasma levels were found significantly lower in both CM and CTTH patients. Because of this, we propose that migraine and, possibly, CH attacks derive from neurotransmitter and neuromodulator metabolic abnormalities in a hyperexcitable and hypoenergetic brain that spread from the frontal lobe, downstream, resulting in abnormally activated nuclei of the pain matrix. The low tryptamine plasma levels found in CM and CTTH patients suggest that these two primary chronic headaches are characterized by a common insufficient serotoninergic control of the pain threshold.
    MeSH term(s) Humans ; Amines ; Migraine Disorders/metabolism ; Cluster Headache ; Tryptamines ; Tension-Type Headache/complications ; Headache/complications ; Tyrosine/metabolism ; Neurotransmitter Agents
    Chemical Substances Amines ; tryptamine (422ZU9N5TV) ; Tryptamines ; Tyrosine (42HK56048U) ; Neurotransmitter Agents
    Language English
    Publishing date 2022-07-16
    Publishing country Italy
    Document type Journal Article ; Review
    ZDB-ID 2016546-8
    ISSN 1590-3478 ; 1590-1874
    ISSN (online) 1590-3478
    ISSN 1590-1874
    DOI 10.1007/s10072-022-06241-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Pathogenesis of chronic migraine: the role of neuromodulators.

    D'Andrea, Giovanni

    The journal of headache and pain

    2017  Volume 16, Issue Suppl 1, Page(s) A38

    Language English
    Publishing date 2017-01-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2036768-5
    ISSN 1129-2377 ; 1129-2369
    ISSN (online) 1129-2377
    ISSN 1129-2369
    DOI 10.1186/1129-2377-16-S1-A38
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Study of arginine metabolism in medication overuse chronic migraine: possible defect in NO synthesis.

    D'Andrea, Giovanni / Gucciardi, Antonina / Giordano, Giuseppe / Bussone, Gennaro / Leon, Alberta

    Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

    2021  Volume 43, Issue 4, Page(s) 2745–2749

    Abstract: Background and aim: The pathogenesis of the pain that occurs in episodic migraine attack is due to the activation of the trigeminal system's first neuron receptors located on vessel wall. The release from the endothelium of nitric oxide, a product of ... ...

    Abstract Background and aim: The pathogenesis of the pain that occurs in episodic migraine attack is due to the activation of the trigeminal system's first neuron receptors located on vessel wall. The release from the endothelium of nitric oxide, a product of arginine metabolism, causes vasodilation and stretching of the vascular trigeminal system and promotes pain. It is unknown whether this same metabolic event is involved in the pain accompanying chronic migraine. To understand the possible role of arginine in the pathogenesis of chronic migraine patients, we evaluated the metabolism of arginine in plasma of chronic migraine and control subjects.
    Methods: We evaluated the metabolism of arginine in a group of patients affected by chronic migraine. Quantification of arginine, ornithine, citrulline, monomethyl arginine (NMMA), dimethylarginines (ADMA, SDMA), and tyramine was performed by ultra-performance liquid chromatography coupled with a triple quadrupole mass spectrometer.
    Results: Chronic migraine patients showed low plasma levels of arginine, significantly elevated levels of ornithine, ADMA, and NMMA whereas the levels of citrulline and SDMA were in the range of controls.
    Conclusions: The elevated levels of ADMA and NMMA, inhibitors of nitric oxide synthase, suggest that the metabolism of arginine may be inhibited with a possible reduction of NO release in the circulation of chronic patients. This suggests that the origin of pain may not be related to the vasodilation of trigeminal vascular system that occurs in episodic migraine patients.
    MeSH term(s) Arginine ; Humans ; Migraine Disorders ; Nitric Oxide/metabolism ; Prescription Drug Overuse
    Chemical Substances Nitric Oxide (31C4KY9ESH) ; Arginine (94ZLA3W45F)
    Language English
    Publishing date 2021-10-22
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 2016546-8
    ISSN 1590-3478 ; 1590-1874
    ISSN (online) 1590-3478
    ISSN 1590-1874
    DOI 10.1007/s10072-021-05672-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Pathogenesis of Cluster Headache: From Episodic to Chronic Form, the Role of Neurotransmitters and Neuromodulators.

    D'Andrea, Giovanni / Gucciardi, Antonina / Perini, Francesco / Leon, Alberta

    Headache

    2019  Volume 59, Issue 9, Page(s) 1665–1670

    Abstract: Objective: To describe the role of biochemical anomalies of tyrosine (TYR), tryptophan (TRP), and arginine (ARG) metabolism in patients suffering from episodic and chronic cluster headache (CCH).: Background: The pathogenesis of cluster headache (CH) ...

    Abstract Objective: To describe the role of biochemical anomalies of tyrosine (TYR), tryptophan (TRP), and arginine (ARG) metabolism in patients suffering from episodic and chronic cluster headache (CCH).
    Background: The pathogenesis of cluster headache (CH) and the process that transforms the episodic into the chronic form are unknown. However, the accompanying symptoms suggest a dysfunction of the sympathetic system and hypothalamus along with anomalies of metabolism of catecholamines, elusive amines, and nitric oxide (NO) metabolism.
    Methods: We describe the results obtained from the last papers published on this issue. The level of metabolites were analyzed by different high-performance liquid chromatography methods.
    Results: In both episodic and CH patients, the levels of dopamine and elusive amines are very elevated. The only biochemical difference found in studies between episodic and chronic cluster was that norepinephrine levels were significantly lower in episodic cluster in comparison to control and chronic subjects. In addition, the levels of ARG, homoarginine, and citrulline, precursors of synthesis of NO, were significantly lower in chronic cluster.
    Conclusions: All these results suggest that TYR, TRP, and ARG metabolism is abnormal and may constitute a biochemical fingerprint of CH patients. The increased levels of norepinephrine in chronic cluster constitute a possible cause of chronicity of this primary headache. The high levels of tryptamine and its activity on the central serotoninergic system may explain why the length of CH is brief in comparison to migraine and tension-type headache. The low levels of ARG, homoarginine, and citrulline may be the consequence of high circulating levels of α
    MeSH term(s) Amino Acids/metabolism ; Chronic Disease ; Cluster Headache/metabolism ; Cluster Headache/pathology ; Cluster Headache/physiopathology ; Disease Progression ; Humans ; Neurotransmitter Agents/metabolism
    Chemical Substances Amino Acids ; Neurotransmitter Agents
    Language English
    Publishing date 2019-10-10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 410130-3
    ISSN 1526-4610 ; 0017-8748
    ISSN (online) 1526-4610
    ISSN 0017-8748
    DOI 10.1111/head.13673
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Different Circulating Trace Amine Profiles in De Novo and Treated Parkinson's Disease Patients.

    D'Andrea, Giovanni / Pizzolato, Gilberto / Gucciardi, Antonina / Stocchero, Matteo / Giordano, Giuseppe / Baraldi, Eugenio / Leon, Alberta

    Scientific reports

    2019  Volume 9, Issue 1, Page(s) 6151

    Abstract: Early diagnosis of Parkinson's disease (PD) remains a challenge to date. New evidence highlights the potential clinical value of circulating trace amines (TAs) in early-stage PD and their involvement in disease progression. A new ultra performance ... ...

    Abstract Early diagnosis of Parkinson's disease (PD) remains a challenge to date. New evidence highlights the potential clinical value of circulating trace amines (TAs) in early-stage PD and their involvement in disease progression. A new ultra performance chromatography mass spectrometry (UPLC-MS/MS) method was developed to quantify plasmatic TAs, and the catecholamines and indolamines pertaining to the same biochemical pathways. Three groups of subjects were recruited: 21 de novo, drug untreated, PD patients, 27 in treatment PD patients and 10 healthy subjects as controls. Multivariate and univariate data analyses were applied to reveal metabolic changes among the groups in attempt to discover new putative markers for early PD detection and disease progression. Different circulating levels of tyrosine (p = 0.002), tyramine (p < 0.001), synephrine (p = 0.015), norepinephrine (p = 0.012), metanephrine (p = 0.001), β-phenylethylamine (p = 0.001) and serotonin (p = 0.006) were found among the three groups. While tyramine behaves as a putative biomarker for early-stage PD (AUC = 0.90) tyramine, norepinephrine, and tyrosine appear to act as biomarkers of disease progression (AUC > 0.75). The findings of this pilot cross-sectional study suggest that biochemical anomalies of the aminergic and indolic neurotransmitters occur in PD patients. Compounds within the TAs family may constitute putative markers for early stage detection and progression of PD.
    MeSH term(s) Adult ; Aged ; Biogenic Amines/blood ; Biomarkers/blood ; Cross-Sectional Studies ; Disease Progression ; Early Diagnosis ; Female ; Humans ; Male ; Middle Aged ; Norepinephrine/blood ; Parkinson Disease/blood ; Parkinson Disease/diagnosis ; Serotonin/blood ; Synephrine/blood ; Tyramine/blood ; Tyrosine/blood
    Chemical Substances Biogenic Amines ; Biomarkers ; Serotonin (333DO1RDJY) ; Tyrosine (42HK56048U) ; Synephrine (PEG5DP7434) ; Norepinephrine (X4W3ENH1CV) ; Tyramine (X8ZC7V0OX3)
    Language English
    Publishing date 2019-04-16
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-019-42535-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Drug-resistant cluster headache: long-term evaluation of pain control by posterior hypothalamic deep-brain stimulation.

    Piacentino, Massimo / D'Andrea, Giovanni / Perini, Francesco / Volpin, Lorenzo

    World neurosurgery

    2014  Volume 81, Issue 2, Page(s) 442.e11–5

    Abstract: Objective: On the basis of recent findings about the pathophysiology of cluster headache and through the experience reported in recent literature, we have reviewed the outcome of four patients affected by drug-resistant cluster headache treated in our ... ...

    Abstract Objective: On the basis of recent findings about the pathophysiology of cluster headache and through the experience reported in recent literature, we have reviewed the outcome of four patients affected by drug-resistant cluster headache treated in our department by posterior hypothalamic deep brain stimulation with a follow-up of more than 5 years.
    Methods: Between 2004 and 2006, we selected four patients affected by cluster headache. The diagnosis was based on the International Classification of Headache Disorders II criteria, and all patients were refractory to drug therapy. Under local anesthesia they underwent stereotactic positioning of a stimulation electrode within the posterior hypothalamus, ipsilateral to the site of pain. An intraoperative neurophysiological test stimulation was performed to assess possible side effects and symptoms related to hypothalamic neuronal activity. A second surgery was then performed with the patient under general anesthesia to implant the extension cable and the implantable pulse generator.
    Results: After 5 years of follow up, all patients had a valuable benefit with a reduction in episode frequency from 90% to 50% associated with a decrease in pain intensity perception.
    Conclusion: The long-lasting pain reduction and the improvement in the patients' symptoms should be considered a real positive prospective, not only because there was uncertainty about the persistence of the beneficial effects at a long-term follow-up, but also for the improvement of the quality of life. The stimulation can restore important aspects concerning the psychic condition that very often constitutes an important limiting factor in normal daily life for this type of patient.
    MeSH term(s) Adult ; Aged ; Cluster Headache/drug therapy ; Cluster Headache/surgery ; Deep Brain Stimulation/methods ; Drug Resistance ; Follow-Up Studies ; Humans ; Hypothalamus, Posterior/surgery ; Male ; Middle Aged ; Pain Management/methods ; Quality of Life ; Treatment Outcome
    Language English
    Publishing date 2014-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2534351-8
    ISSN 1878-8769 ; 1878-8750
    ISSN (online) 1878-8769
    ISSN 1878-8750
    DOI 10.1016/j.wneu.2013.01.130
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A prospective pilot study of the effect on catecholamines of mindfulness training vs pharmacological prophylaxis in patients with chronic migraine and medication overuse headache.

    Grazzi, Licia / Raggi, Alberto / D'Amico, Domenico / Sansone, Emanuela / Leonardi, Matilde / Andrasik, Frank / Gucciardi, Antonina / Guido, Davide / D'Andrea, Giovanni

    Cephalalgia : an international journal of headache

    2018  Volume 39, Issue 5, Page(s) 655–664

    Abstract: Aim: To address whether, in patients with chronic migraine and medication overuse headache, mindfulness-based treatment is associated with changes in plasma levels of catecholamines and elusive amines that are similar to those observed in patients ... ...

    Abstract Aim: To address whether, in patients with chronic migraine and medication overuse headache, mindfulness-based treatment is associated with changes in plasma levels of catecholamines and elusive amines that are similar to those observed in patients undergoing pharmacological prophylaxis.
    Methods: In this non-randomized, clinic-based effectiveness study, patients aged 18-65, with a history of chronic migraine ≥ 10 years and overuse of triptans or non-steroidal anti-inflammatory drugs ≥ 5 years, were enrolled. Upon completion of a structured withdrawal program, patients received either pharmacological prophylaxis or six weekly sessions of mindfulness-based treatment and were followed for 12 months. Daily headache diaries were used to record headache frequency and medication intake; catecholamines (noradrenaline, epinephrine and dopamine) and levels of elusive amines were assayed from poor platelet plasma.
    Results: Complete follow-up data were available for 15 patients in the pharmacological prophylaxis-group (14 females, average age 44.1) and 14 in the mindfulness treatment-group (all females, average age 46.4), and all variables were comparable between groups at baseline. At 12 months, significant improvement ( p < .001) was found in the pharmacological prophylaxis group for headache frequency and medication intake (by 51% and 48.7%, respectively), noradrenaline, epinephrine and dopamine (by 98.7%, 120.8% and 501.9%, respectively); patients in the mindfulness treatment-group performed similarly. For elusive amines, no longitudinal changes were found.
    Conclusions: The similar improvement trends observed in the two groups of patients further support the utility of mindfulness-based treatment in migraine care, and reinforce the hypothesis that alteration and normalization of tyrosine metabolism are implicated in migraine chronification and in remission of chronic migraine.
    MeSH term(s) Adult ; Analgesics/therapeutic use ; Catecholamines/blood ; Female ; Headache Disorders, Secondary/blood ; Headache Disorders, Secondary/therapy ; Humans ; Male ; Middle Aged ; Migraine Disorders/blood ; Migraine Disorders/therapy ; Mindfulness ; Pilot Projects ; Treatment Outcome
    Chemical Substances Analgesics ; Catecholamines
    Language English
    Publishing date 2018-09-13
    Publishing country England
    Document type Clinical Trial ; Journal Article
    ZDB-ID 604567-4
    ISSN 1468-2982 ; 0333-1024
    ISSN (online) 1468-2982
    ISSN 0333-1024
    DOI 10.1177/0333102418801584
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: The efficacy of ginkgolide B in the acute treatment of migraine aura: an open preliminary trial.

    Allais, Gianni / D'Andrea, Giovanni / Maggio, Maurizio / Benedetto, Chiara

    Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

    2013  Volume 34 Suppl 1, Page(s) S161–3

    Abstract: In this open trial we evaluated the possible efficacy of Ginkgolide B in the treatment of acute aura in a group of patients suffering from migraine with aura, considering in particular the effect of the treatment on aura duration. Twenty-five patients ( ... ...

    Abstract In this open trial we evaluated the possible efficacy of Ginkgolide B in the treatment of acute aura in a group of patients suffering from migraine with aura, considering in particular the effect of the treatment on aura duration. Twenty-five patients (16 females, 9 males, mean age 39.7 ± 13.5 years, range 18-65) suffering from migraine with aura were enrolled in the study. The diagnosis was made according to the diagnostic criteria of the international classification of headache disorders, second edition (ICHD-II), for typical aura with migraine headache (n = 19) or typical aura without headache (n = 6). Patients were asked to use a diary card to register the exact duration of the aura symptoms in two consecutive attacks of aura. In the first one, they only took note of the duration of neurological symptoms in minutes. In the following attack, they were instructed to take orally, immediately at the onset of the first symptoms of aura, two capsules of a combination of 60 mg Ginkgo biloba terpenes phytosome, 11 mg coenzyme Q 10 and 8.7 mg vitamin B2 (Migrasoll). Aura duration (expressed in minutes) was significantly (p < 0.001) reduced by Migrasoll intake, being 33.6 ± 11.5 in the first untreated attack and 21.9 ± 11.8 during the second attack. In general, there was a marked amelioration of the features of the neurological symptoms of aura in the treated attack. In four patients (18.1 %) suffering from typical aura with migraine, the pain phase disappeared. Among the patients who completed the study no serious adverse events were reported.
    MeSH term(s) Adolescent ; Adult ; Aged ; Female ; Fibrinolytic Agents/therapeutic use ; Ginkgolides/therapeutic use ; Humans ; Lactones/therapeutic use ; Male ; Middle Aged ; Migraine with Aura/drug therapy ; Young Adult
    Chemical Substances Fibrinolytic Agents ; Ginkgolides ; Lactones ; ginkgolide B (DF149B9460)
    Language English
    Publishing date 2013-05-22
    Publishing country Italy
    Document type Clinical Trial ; Journal Article
    ZDB-ID 2016546-8
    ISSN 1590-3478 ; 1590-1874
    ISSN (online) 1590-3478
    ISSN 1590-1874
    DOI 10.1007/s10072-013-1413-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Migraine with aura: conventional and non-conventional treatments.

    D'Andrea, Giovanni / Colavito, Davide / Dalle Carbonare, Maurizio / Leon, Alberta

    Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

    2011  Volume 32 Suppl 1, Page(s) S121–9

    Abstract: Migraine with aura (MwA) is a primary headache that affects up 30% of migraine patients. Although the frequency of MwA attacks is usually low and the majority of migraine sufferers do not need prophylactic treatment(s), same particular patients do. This ... ...

    Abstract Migraine with aura (MwA) is a primary headache that affects up 30% of migraine patients. Although the frequency of MwA attacks is usually low and the majority of migraine sufferers do not need prophylactic treatment(s), same particular patients do. This occurs when the neurological symptoms, that characterize the auras, determine anxiety to the migraine sufferers and when the frequency of MwA attacks is or becomes high. In this study, we review the few therapeutic conventional options specifically devoted to cure MwA attacks present in the literature together with those, recent, non-conventional.
    MeSH term(s) Analgesics/therapeutic use ; Clinical Trials as Topic ; Humans ; Migraine with Aura/drug therapy ; Migraine with Aura/physiopathology
    Chemical Substances Analgesics
    Language English
    Publishing date 2011-03-29
    Publishing country Italy
    Document type Journal Article ; Review
    ZDB-ID 2016546-8
    ISSN 1590-3478 ; 1590-1874
    ISSN (online) 1590-3478
    ISSN 1590-1874
    DOI 10.1007/s10072-011-0529-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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