LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 5 of total 5

Search options

  1. Article: Quantification of stimulus-evoked tactile allodynia in free moving mice by the chainmail sensitivity test.

    Ozdemir, Yildirim / Nakamoto, Kazuo / Boivin, Bruno / Bullock, Daniel / Andrews, Nick A / González-Cano, Rafael / Costigan, Michael

    Frontiers in pharmacology

    2024  Volume 15, Page(s) 1352464

    Abstract: Chronic pain occurs at epidemic levels throughout the population. Hypersensitivity to touch, is a cardinal symptom of chronic pain. Despite dedicated research for over a century, quantifying this hypersensitivity has remained impossible at scale. To ... ...

    Abstract Chronic pain occurs at epidemic levels throughout the population. Hypersensitivity to touch, is a cardinal symptom of chronic pain. Despite dedicated research for over a century, quantifying this hypersensitivity has remained impossible at scale. To address these issues, we developed the Chainmail Sensitivity Test (CST). Our results show that control mice spend significantly more time on the chainmail portion of the device than mice subject to neuropathy. Treatment with gabapentin abolishes this difference. CST-derived data correlate well with von Frey measurements and quantify hypersensitivity due to inflammation. Our study demonstrates the potential of the CST as a standardized tool for assessing mechanical hypersensitivity in mice with minimal operator input.
    Language English
    Publishing date 2024-02-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2024.1352464
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article ; Online: Alcohol Consumption and Aneurysmal Subarachnoid Hemorrhage.

    Can, Anil / Castro, Victor M / Ozdemir, Yildirim H / Dagen, Sarajune / Dligach, Dmitriy / Finan, Sean / Yu, Sheng / Gainer, Vivian / Shadick, Nancy A / Savova, Guergana / Murphy, Shawn / Cai, Tianxi / Weiss, Scott T / Du, Rose

    Translational stroke research

    2017  Volume 9, Issue 1, Page(s) 13–19

    Abstract: Alcohol consumption may be a modifiable risk factor for rupture of intracranial aneurysms. Our aim is to evaluate the association between ruptured aneurysms and alcohol consumption, intensity, and cessation. The medical records of 4701 patients with 6411 ...

    Abstract Alcohol consumption may be a modifiable risk factor for rupture of intracranial aneurysms. Our aim is to evaluate the association between ruptured aneurysms and alcohol consumption, intensity, and cessation. The medical records of 4701 patients with 6411 radiographically confirmed intracranial aneurysms diagnosed at the Brigham and Women's Hospital and Massachusetts General Hospital between 1990 and 2016 were reviewed. Individuals were divided into cases with ruptured aneurysms and controls with unruptured aneurysms. Univariable and multivariable logistic regression analyses were performed to determine the association between alcohol consumption and rupture of intracranial aneurysms. In multivariable analysis, current alcohol use (OR 1.36, 95% CI 1.17-1.58) was associated with rupture status compared with never drinkers, whereas former alcohol use was not significant (OR 1.23, 95% CI 0.92-1.63). In addition, the number of alcoholic beverages per day among current alcohol users (OR 1.13, 95% CI 1.04-1.23) was significantly associated with rupture status, whereas alcohol use intensity was not significant among former users (OR 1.02, 95% CI 0.94-1.11). Current alcohol use and intensity are significantly associated with intracranial aneurysm rupture. However, this increased risk does not persist in former alcohol users, emphasizing the potential importance of alcohol cessation in patients harboring unruptured aneurysms.
    MeSH term(s) Adult ; Aged ; Alcohol Drinking/epidemiology ; Female ; Humans ; Intracranial Aneurysm/complications ; Intracranial Aneurysm/epidemiology ; Logistic Models ; Male ; Middle Aged ; Subarachnoid Hemorrhage/epidemiology ; Subarachnoid Hemorrhage/etiology
    Language English
    Publishing date 2017-07-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2541897-X
    ISSN 1868-601X ; 1868-4483
    ISSN (online) 1868-601X
    ISSN 1868-4483
    DOI 10.1007/s12975-017-0557-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article ; Online: Association of intracranial aneurysm rupture with smoking duration, intensity, and cessation.

    Can, Anil / Castro, Victor M / Ozdemir, Yildirim H / Dagen, Sarajune / Yu, Sheng / Dligach, Dmitriy / Finan, Sean / Gainer, Vivian / Shadick, Nancy A / Murphy, Shawn / Cai, Tianxi / Savova, Guergana / Dammers, Ruben / Weiss, Scott T / Du, Rose

    Neurology

    2017  Volume 89, Issue 13, Page(s) 1408–1415

    Abstract: Objective: Although smoking is a known risk factor for intracranial aneurysm (IA) rupture, the exact relationship between IA rupture and smoking intensity and duration, as well as duration of smoking cessation, remains unknown.: Methods: In this case- ...

    Abstract Objective: Although smoking is a known risk factor for intracranial aneurysm (IA) rupture, the exact relationship between IA rupture and smoking intensity and duration, as well as duration of smoking cessation, remains unknown.
    Methods: In this case-control study, we analyzed 4,701 patients with 6,411 IAs diagnosed at the Brigham and Women's Hospital and Massachusetts General Hospital between 1990 and 2016. We divided individuals into patients with ruptured aneurysms and controls with unruptured aneurysms. We performed univariable and multivariable logistic regression analyses to determine the association between smoking status and ruptured IAs at presentation. In a subgroup analysis among former and current smokers, we assessed the association between ruptured aneurysms and number of packs per day, duration of smoking, and duration since smoking cessation.
    Results: In multivariable analysis, current (odds ratio [OR] 2.21, 95% confidence interval [CI] 1.89-2.59) and former smoking status (OR 1.56, 95% CI 1.31-1.86) were associated with rupture status at presentation compared with never smokers. In a subgroup analysis among current and former smokers, years smoked (OR 1.02, 95% CI 1.01-1.03) and packs per day (OR 1.46, 95% CI 1.25-1.70) were significantly associated with ruptured aneurysms at presentation, whereas duration since cessation among former smokers was not significant (OR 1.00, 95% CI 0.99-1.02).
    Conclusions: Current cigarette smoking, smoking intensity, and smoking duration are significantly associated with ruptured IAs at presentation. However, the significantly increased risk persists after smoking cessation, and smoking cessation does not confer a reduced risk of aneurysmal subarachnoid hemorrhage beyond that of reducing the cumulative dose.
    MeSH term(s) Aneurysm, Ruptured/complications ; Aneurysm, Ruptured/epidemiology ; Case-Control Studies ; Female ; Humans ; Intracranial Aneurysm/complications ; Intracranial Aneurysm/epidemiology ; Logistic Models ; Male ; Middle Aged ; Multivariate Analysis ; Odds Ratio ; Risk Factors ; Smoking/adverse effects ; Smoking/epidemiology ; Smoking Cessation
    Language English
    Publishing date 2017-08-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 207147-2
    ISSN 1526-632X ; 0028-3878
    ISSN (online) 1526-632X
    ISSN 0028-3878
    DOI 10.1212/WNL.0000000000004419
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Ui II Zs.153: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)
    Zs.MG 18: Show issues
    Zs.MO 374: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Article ; Online: Heroin Use Is Associated with Ruptured Saccular Aneurysms.

    Can, Anil / Castro, Victor M / Ozdemir, Yildirim H / Dagen, Sarajune / Dligach, Dmitriy / Finan, Sean / Yu, Sheng / Gainer, Vivian / Shadick, Nancy A / Savova, Guergana / Murphy, Shawn / Cai, Tianxi / Weiss, Scott T / Du, Rose

    Translational stroke research

    2017  Volume 9, Issue 4, Page(s) 340–346

    Abstract: While cocaine use is thought to be associated with aneurysmal rupture, it is not known whether heroin use increases the risk of rupture in patients with non-mycotic saccular aneurysms. Our goal was to investigate the association between heroin and ... ...

    Abstract While cocaine use is thought to be associated with aneurysmal rupture, it is not known whether heroin use increases the risk of rupture in patients with non-mycotic saccular aneurysms. Our goal was to investigate the association between heroin and cocaine use and the rupture of saccular non-mycotic aneurysms. The medical records of 4701 patients with 6411 intracranial aneurysms, including 1201 prospective patients, diagnosed at the Brigham and Women's Hospital and Massachusetts General Hospital between 1990 and 2016 were reviewed and analyzed. Patients were separated into ruptured and non-ruptured groups. Univariable and multivariable logistic regression analyses were performed to determine the association between heroin, cocaine, and methadone use and the presence of ruptured intracranial aneurysms. In multivariable analysis, current heroin use was significantly associated with rupture status (OR 3.23, 95% CI 1.33-7.83) whereas former heroin use (with and without methadone replacement therapy), and current and former cocaine use were not significantly associated with intracranial aneurysm rupture. In the present study, heroin rather than cocaine use is significantly associated with intracranial aneurysm rupture in patients with non-mycotic saccular cerebral aneurysms, emphasizing the possible role of heroin in the pathophysiology of aneurysm rupture and the importance of heroin cessation in patients harboring unruptured intracranial aneurysms.
    MeSH term(s) Aneurysm, Ruptured/complications ; Aneurysm, Ruptured/epidemiology ; Female ; Heroin Dependence/epidemiology ; Humans ; Intracranial Aneurysm/complications ; Intracranial Aneurysm/epidemiology ; Logistic Models ; Male ; Retrospective Studies ; Risk Factors
    Language English
    Publishing date 2017-11-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2541897-X
    ISSN 1868-601X ; 1868-4483
    ISSN (online) 1868-601X
    ISSN 1868-4483
    DOI 10.1007/s12975-017-0582-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  5. Article ; Online: Stress and corticosteroids regulate rat hippocampal mitochondrial DNA gene expression via the glucocorticoid receptor.

    Hunter, Richard G / Seligsohn, Ma'ayan / Rubin, Todd G / Griffiths, Brian B / Ozdemir, Yildirim / Pfaff, Donald W / Datson, Nicole A / McEwen, Bruce S

    Proceedings of the National Academy of Sciences of the United States of America

    2016  Volume 113, Issue 32, Page(s) 9099–9104

    Abstract: Glucocorticoids (GCs) are involved in stress and circadian regulation, and produce many actions via the GC receptor (GR), which is classically understood to function as a nuclear transcription factor. However, the nuclear genome is not the only genome in ...

    Abstract Glucocorticoids (GCs) are involved in stress and circadian regulation, and produce many actions via the GC receptor (GR), which is classically understood to function as a nuclear transcription factor. However, the nuclear genome is not the only genome in eukaryotic cells. The mitochondria also contain a small circular genome, the mitochondrial DNA (mtDNA), that encodes 13 polypeptides. Recent work has established that, in the brain and other systems, the GR is translocated from the cytosol to the mitochondria and that stress and corticosteroids have a direct influence on mtDNA transcription and mitochondrial physiology. To determine if stress affects mitochondrially transcribed mRNA (mtRNA) expression, we exposed adult male rats to both acute and chronic immobilization stress and examined mtRNA expression using quantitative RT-PCR. We found that acute stress had a main effect on mtRNA expression and that expression of NADH dehydrogenase 1, 3, and 6 (ND-1, ND-3, ND-6) and ATP synthase 6 (ATP-6) genes was significantly down-regulated. Chronic stress induced a significant up-regulation of ND-6 expression. Adrenalectomy abolished acute stress-induced mtRNA regulation, demonstrating GC dependence. ChIP sequencing of GR showed that corticosterone treatment induced a dose-dependent association of the GR with the control region of the mitochondrial genome. These findings demonstrate GR and stress-dependent transcriptional regulation of the mitochondrial genome in vivo and are consistent with previous work linking stress and GCs with changes in the function of brain mitochondria.
    Language English
    Publishing date 2016--09
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.1602185113
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 1148: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top