LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 326

Search options

  1. Article ; Online: Under-fuelling the fire: mitochondrial implications for energy deficiency and muscle protein synthesis.

    Handy, Rachel M / DesOrmeaux, Geneviève J

    The Journal of physiology

    2023  Volume 601, Issue 18, Page(s) 3987–3989

    MeSH term(s) Muscle Proteins/metabolism ; Mitochondria/metabolism ; Muscle, Skeletal/physiology ; Energy Metabolism/physiology
    Chemical Substances Muscle Proteins
    Language English
    Publishing date 2023-08-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 3115-x
    ISSN 1469-7793 ; 0022-3751
    ISSN (online) 1469-7793
    ISSN 0022-3751
    DOI 10.1113/JP285175
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Review of Antimicrobial Nanocoatings in Medicine and Dentistry: Mechanisms of Action, Biocompatibility Performance, Safety, and Benefits Compared to Antibiotics.

    Butler, James / Handy, Richard D / Upton, Mathew / Besinis, Alexandros

    ACS nano

    2023  Volume 17, Issue 8, Page(s) 7064–7092

    Abstract: This review discusses topics relevant to the development of antimicrobial nanocoatings and nanoscale surface modifications for medical and dental applications. Nanomaterials have unique properties compared to their micro- and macro-scale counterparts and ...

    Abstract This review discusses topics relevant to the development of antimicrobial nanocoatings and nanoscale surface modifications for medical and dental applications. Nanomaterials have unique properties compared to their micro- and macro-scale counterparts and can be used to reduce or inhibit bacterial growth, surface colonization and biofilm development. Generally, nanocoatings exert their antimicrobial effects through biochemical reactions, production of reactive oxygen species or ionic release, while modified nanotopographies create a physically hostile surface for bacteria, killing cells via biomechanical damage. Nanocoatings may consist of metal nanoparticles including silver, copper, gold, zinc, titanium, and aluminum, while nonmetallic compounds used in nanocoatings may be carbon-based in the form of graphene or carbon nanotubes, or composed of silica or chitosan. Surface nanotopography can be modified by the inclusion of nanoprotrusions or black silicon. Two or more nanomaterials can be combined to form nanocomposites with distinct chemical or physical characteristics, allowing combination of different properties such as antimicrobial activity, biocompatibility, strength, and durability. Despite their wide range of applications in medical engineering, questions have been raised regarding potential toxicity and hazards. Current legal frameworks do not effectively regulate antimicrobial nanocoatings in matters of safety, with open questions remaining about risk analysis and occupational exposure limits not considering coating-based approaches. Bacterial resistance to nanomaterials is also a concern, especially where it may affect wider antimicrobial resistance. Nanocoatings have excellent potential for future use, but safe development of antimicrobials requires careful consideration of the "One Health" agenda, appropriate legislation, and risk assessment.
    MeSH term(s) Anti-Bacterial Agents/chemistry ; Nanotubes, Carbon ; Anti-Infective Agents ; Nanocomposites/chemistry ; Dentistry
    Chemical Substances Anti-Bacterial Agents ; Nanotubes, Carbon ; Anti-Infective Agents
    Language English
    Publishing date 2023-04-07
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.2c12488
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Independent, but not co-supplementation, with nitrate and resveratrol improves glucose tolerance and reduces markers of cellular stress in high-fat-fed male mice.

    Handy, Rachel M / DesOrmeaux, Geneviève J / Barbeau, Pierre-Andre / Frangos, Sara M / Holloway, Graham P

    American journal of physiology. Regulatory, integrative and comparative physiology

    2023  Volume 324, Issue 3, Page(s) R317–R328

    Abstract: Independent supplementation with nitrate (NIT) and resveratrol (RSV) enriches various aspects of mitochondrial biology in key metabolic tissues. Although RSV is known to activate Sirt1 and initiate mitochondrial biogenesis, the metabolic benefits ... ...

    Abstract Independent supplementation with nitrate (NIT) and resveratrol (RSV) enriches various aspects of mitochondrial biology in key metabolic tissues. Although RSV is known to activate Sirt1 and initiate mitochondrial biogenesis, the metabolic benefits elicited by dietary nitrate appear to be dependent on 5'-adenosine monophosphate-activated protein kinase (AMPK)-mediated signaling events, a process also linked to the activation of Sirt1. Although the benefits of individual supplementation with these compounds have been characterized, it is unknown if co-supplementation may produce superior metabolic adaptations. Thus, we aimed to determine if treatment with combined +NIT and +RSV (+RN) could additively alter metabolic adaptations in the presence of a high-fat diet (HFD). Both +RSV and +NIT improved glucose tolerance compared with HFD (
    MeSH term(s) Mice ; Animals ; Male ; Resveratrol/pharmacology ; Nitrates/pharmacology ; Sirtuin 1/metabolism ; Dietary Supplements ; Diet, High-Fat ; AMP-Activated Protein Kinases/metabolism ; Glucose/metabolism ; Lipids
    Chemical Substances Resveratrol (Q369O8926L) ; Nitrates ; Sirtuin 1 (EC 3.5.1.-) ; AMP-Activated Protein Kinases (EC 2.7.11.31) ; Glucose (IY9XDZ35W2) ; Lipids
    Language English
    Publishing date 2023-01-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603839-6
    ISSN 1522-1490 ; 0363-6119
    ISSN (online) 1522-1490
    ISSN 0363-6119
    DOI 10.1152/ajpregu.00196.2022
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Anti-seizure efficacy of perampanel in two established rodent models of early-life epilepsy.

    Roberts, Nicholas S / Handy, Marcus J / Ito, Yoshimasa / Hashimoto, Keisuke / Jensen, Frances E / Talos, Delia M

    Epilepsy & behavior : E&B

    2023  Volume 143, Page(s) 109194

    Abstract: Early-life seizures can be refractory to conventional antiseizure medications (ASMs) and can also result in chronic epilepsy and long-term behavioral and cognitive deficits. Treatments targeting age-specific mechanisms contributing to epilepsy would be ... ...

    Abstract Early-life seizures can be refractory to conventional antiseizure medications (ASMs) and can also result in chronic epilepsy and long-term behavioral and cognitive deficits. Treatments targeting age-specific mechanisms contributing to epilepsy would be of clinical benefit. One such target is the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) subtype of excitatory glutamate receptor, which is upregulated in the developing brain. Perampanel is a non-competitive, selective AMPAR antagonist that is FDA-approved for focal onset seizures (FOS) or primary generalized tonic-clonic seizures (PGTC) in children and adults. However, the efficacy of perampanel treatment in epilepsy patients younger than 4 years has been less documented. We thus tested the efficacy of perampanel in two early-life seizure models: (1) a rat model of hypoxia-induced neonatal seizures and (2) a mouse model of Dravet syndrome with hyperthermia-induced seizures. Pretreatment with perampanel conferred dose-dependent protection against early-life seizures in both experimental models. These findings suggest that AMPAR-mediated hyperexcitability could be involved in the pathophysiology of early-life seizures, which may be amenable to treatment with perampanel.
    MeSH term(s) Mice ; Rats ; Animals ; Rodentia ; Anticonvulsants/adverse effects ; Treatment Outcome ; Epilepsy/drug therapy ; Pyridones
    Chemical Substances perampanel (H821664NPK) ; Anticonvulsants ; Pyridones
    Language English
    Publishing date 2023-04-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2010587-3
    ISSN 1525-5069 ; 1525-5050
    ISSN (online) 1525-5069
    ISSN 1525-5050
    DOI 10.1016/j.yebeh.2023.109194
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: The impact of COVID-19 and long COVID on sexual function in cisgender women.

    Seehuus, Martin / Fertig, Madison / Handy, Ariel B / Clifton, Jessica / Stanton, Amelia M

    The journal of sexual medicine

    2023  Volume 21, Issue 2, Page(s) 129–144

    Abstract: ... Satisfaction subscales of the FSFI (mean [M] [SD] FSFI total Mnever COVID = 27.98 [4.84] vs MCOVID = 27.05 [5 ...

    Abstract Background: Research suggests that COVID-19 impairs sexual function in men, but little is known about the impact of COVID-19 (or long COVID) on sexual function in women.
    Aim: We sought to compare the sexual function of cisgender women who had never had COVID-19, who had COVID-19 but not long COVID, and who had long COVID, and assessed whether long COVID symptoms and/or emotional distress mediate the relationship between COVID-19 history and sexual function.
    Methods: In total, 2329 adult cisgender women were recruited online as study participants. Half of these women reported having had COVID-19, and the other half reported never having had COVID-19. Of those who had COVID-19, 25% (n = 170) reported having long COVID. We compared the mean Female Sexual Function Index (FSFI) scores by using t-tests for each of the primary comparison categories (never COVID vs COVID and only COVID vs long COVID). Four path models were used to test the hypotheses that (1) long COVID symptoms or (2) depression, anxiety, and/or stress assessed with the subscales of the 21-item Depression, Anxiety, and Stress Scale (DASS-21) mediated the relationship between COVID-19 and sexual function.
    Outcomes: Sexual function was measured with the FSFI, long COVID symptoms were assessed using the Centers for Disease Control working symptom set, and emotional distress was measured with the DASS-21.
    Results: In total, 1313 participants provided data suitable for analysis. The never-COVID group (n = 645, 49.1%) had higher scores on the Desire, Arousal, Lubrication, and Satisfaction subscales of the FSFI (mean [M] [SD] FSFI total Mnever COVID = 27.98 [4.84] vs MCOVID = 27.05 [5.21]) than the combined only-COVID (n = 498, 37.9%) and long-COVID (n = 170, 12.9%) groups. The FSFI subscale scores were significantly higher in the only-COVID group than in the long-COVID group for the Arousal, Lubrication, and Orgasm and lower for the Pain subscales and higher for overall sexual function (FSFI total Monly COVID = 27.49 [5.00] vs Mlong COVID = 25.77 [5.61]. None of the proposed mediation models had adequate model fit.
    Clinical implications: Clinicians treating cisgender women who have COVID-19 should consider proactively discussing sexual function with their patients and offering available resources.
    Strengths and limitations: In this study we used a large and diverse sample, but this sample did not include transgender or gender-diverse persons. This study was also correlational; as such, causal conclusions cannot be drawn. Further, the mechanism of action remains unexplained.
    Conclusions: The study findings suggest the following: (1) COVID-19 infection is associated with impaired sexual function in cisgender women, and (2) that women with long COVID experienced incrementally more impaired sexual function than women with COVID-19 who did not develop long COVID.
    MeSH term(s) Adult ; Male ; Female ; Humans ; Post-Acute COVID-19 Syndrome ; Surveys and Questionnaires ; COVID-19/complications ; Sexual Dysfunction, Physiological/epidemiology ; Sexual Dysfunction, Physiological/etiology ; Sexual Dysfunction, Physiological/psychology ; Orgasm ; Sexual Behavior/psychology ; Sexual Dysfunctions, Psychological/epidemiology ; Sexual Dysfunctions, Psychological/etiology ; Sexual Dysfunctions, Psychological/diagnosis
    Language English
    Publishing date 2023-12-05
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2251959-2
    ISSN 1743-6109 ; 1743-6095
    ISSN (online) 1743-6109
    ISSN 1743-6095
    DOI 10.1093/jsxmed/qdad155
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Lowering A1c Through Integrated Behavioral Health Group Visits.

    Marthi, Siddharth / Handy, Jamie / David, Kristin / Kerzer, Martin

    Rhode Island medical journal (2013)

    2021  Volume 104, Issue 1, Page(s) 47–50

    Abstract: Introduction & objective: Suboptimal adherence to medication and lifestyle modification continues to be a problem in diabetic patients in the US. Previous studies have investigated the potential of group educational visits in improving medication ... ...

    Abstract Introduction & objective: Suboptimal adherence to medication and lifestyle modification continues to be a problem in diabetic patients in the US. Previous studies have investigated the potential of group educational visits in improving medication adherence and short-term health outcomes, but few have done so using a biopsychosocial approach in visits. This study aimed to evaluate the effect that group visits, conducted using an integrated behavioral health model at a primary care practice, had on A1c and distress levels in diabetic adults.
    Methods: Using the Diabetic Distress Scale (DDS), 15 adults were identified as having moderate diabetic distress (> 3.0) between December 2016 and May 2017 and invited to attend a group visit in May 2017 to address identified barriers. Of those, nine attended. The group visit, conducted by a psychologist, sought to reduce diabetic distress by targeting behavioral and social factors, including improving social and familial support, using diabetes online forums, and improving mind-body connection. Repeat A1c and DDS measurements for all nine visit participants were collected three months after.
    Results: Group visit participants experienced a decrease in A1c (p=0.011). All nine participants had a decrease in their post-intervention DDS. Of the six patients who had positive DDS screens but did not attend, three had increased A1c, two had no change, one had a decrease, and one did not have a repeat A1c.
    Conclusions: Multidisciplinary group visits targeting the biopsychosocial model may be an efficient supplement to the individual medical visit to further improve control of diabetic distress and short-term morbidity in Rhode Island.
    MeSH term(s) Behavior Therapy ; Diabetes Mellitus ; Glycated Hemoglobin A/analysis ; Humans ; Medication Adherence ; Rhode Island
    Chemical Substances Glycated Hemoglobin A
    Language English
    Publishing date 2021-02-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 419430-5
    ISSN 2327-2228 ; 0363-7913
    ISSN (online) 2327-2228
    ISSN 0363-7913
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Nicotine-related content in English language ENDS advertisements in the US: 2018-2020.

    Kennedy, Ryan David / Moran, Meghan / Czaplicki, Lauren / Handy, Jessica / Welding, Kevin / Kelley, Dannielle

    Preventive medicine

    2023  Volume 171, Page(s) 107513

    Abstract: There is no standard way to communicate to consumers how much nicotine is present in electronic nicotine delivery systems (ENDS). This study assessed the inclusion of nicotine-related content, including nicotine strength, in a sample of English language ... ...

    Abstract There is no standard way to communicate to consumers how much nicotine is present in electronic nicotine delivery systems (ENDS). This study assessed the inclusion of nicotine-related content, including nicotine strength, in a sample of English language ENDS advertisements that appeared in consumer and business-to-business outlets in the US during 2018-2020. The sample, provided by a media surveillance company, included ads from television, radio, newspapers, magazines (consumer and business-to-business), online platforms, outdoor/billboards, and direct-to-consumer emails. We coded for the presence of nicotine-related content (excluding FDA-required warnings) including nicotine strength presentation, such as mg, mg/ml and percent. The sample included 2966 unique ads, of which 33% (n = 979) featured nicotine-related content. The proportion of ads in the entire sample with nicotine-related content differed by manufacturer/retailer. Ads for Logic e-cigarettes had the highest proportion of nicotine content (62%, n = 258), while ads for JUUL and Vapor4Life had the lowest proportion (13.0% (n = 95) and 19.8% (n = 65), respectively). The proportion of ads with nicotine-related content also differed by media outlet: B2B magazines: 64.8% (n = 68); emails: 41% (n = 529); consumer magazines: 30.4% (n = 41); online: 25.3% (n = 227); television: 20% (n = 6); radio: 19.1% (n = 89); and outdoor (0%, n = 0). Across the sample of ads, 15% reported nicotine strength in mg or mg/ml (n = 444), and 9% reported nicotine strength in percent (n = 260). Most ENDS ads do not include nicotine-related content. There is substantial variation in presentation of nicotine strength, which may present challenges for consumer understanding of absolute and relative nicotine-related content.
    MeSH term(s) Humans ; Nicotine ; Electronic Nicotine Delivery Systems ; Advertising ; Tobacco Products ; Commerce
    Chemical Substances Nicotine (6M3C89ZY6R)
    Language English
    Publishing date 2023-04-11
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, P.H.S. ; Research Support, Non-U.S. Gov't
    ZDB-ID 184600-0
    ISSN 1096-0260 ; 0091-7435
    ISSN (online) 1096-0260
    ISSN 0091-7435
    DOI 10.1016/j.ypmed.2023.107513
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Trauma Tertiary Survey: Trauma Service Medical Officers and Trauma Nurses Detect Similar Rates of Missed Injuries.

    Williamson, Frances / Grant, Kerena / Warren, Jacelle / Handy, Michael

    Journal of trauma nursing : the official journal of the Society of Trauma Nurses

    2021  Volume 28, Issue 3, Page(s) 166–172

    Abstract: Background: Trauma tertiary surveys (TTSs) can improve patient outcomes by identifying missed injuries following initial trauma reception and resuscitation. Most TTSs are conducted by medical officers despite the multidisciplinary team approach of ... ...

    Abstract Background: Trauma tertiary surveys (TTSs) can improve patient outcomes by identifying missed injuries following initial trauma reception and resuscitation. Most TTSs are conducted by medical officers despite the multidisciplinary team approach of modern trauma care.
    Objective: The study aim was to assess the accuracy of detecting missed injuries when the TTS was performed by specialist trauma nursing staff, rather than trauma service medical officers (TSMOs).
    Methods: A prospective, convenience sample of adult trauma patients admitted to a tertiary trauma center and attended by the trauma service between October 2015 and August 2018 was obtained. For this sample, a TTS was completed by both the TSMO and the trauma nurse (TN). The number of radiological investigations ordered and missed injuries identified were compared between the two clinicians. Additional injuries were graded using the Clavien-Dindo system.
    Results: The study sample consisted of 165 patients with a dual TTS, for which at least one team member requested 35 additional radiological investigations. There was fair agreement (κ = 0.36) between the TN and the TSMO in requesting additional radiological investigations. Ten missed injuries were identified by TN-initiated review (n = 24), and 4 missed injuries were identified by TSMO-initiated review (n = 21). Injuries identified following TTSs ranged in severity grading from 0 to 3.
    Conclusions: Performance of the TN on the TTS in the identification of missed injuries is similar to that of the TSMO. Trauma nurses use an appropriate and rationalized approach to ordering additional radiological investigations and contribute a valuable addition to trauma patient care.
    MeSH term(s) Diagnostic Errors ; Humans ; Multiple Trauma ; Nurses ; Prospective Studies ; Trauma Centers ; Wounds and Injuries
    Language English
    Publishing date 2021-05-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1281159-2
    ISSN 1078-7496
    ISSN 1078-7496
    DOI 10.1097/JTN.0000000000000578
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Chronic care management at South Main Clinic: A retrospective comparison.

    Catherine, Cameron / Henderson, Stacie / Oldroyd, Millie / Sanyer, Cari / Elrod, Leigh / Handy, Rod / Coombs, Jennifer

    JAAPA : official journal of the American Academy of Physician Assistants

    2022  Volume 35, Issue 12, Page(s) 1

    MeSH term(s) Humans ; Retrospective Studies ; Ambulatory Care Facilities
    Language English
    Publishing date 2022-11-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2415226-2
    ISSN 0893-7400 ; 1547-1896
    ISSN (online) 0893-7400
    ISSN 1547-1896
    DOI 10.1097/01.JAA.0000892804.10706.fb
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Acute pulmonary oedema and hyperchloraemic metabolic acidosis following operative hysteroscopy using sodium chloride 0.9.

    Summers, G C / Fosker, S R / Faris, R / Handy, J M

    Anaesthesia reports

    2020  Volume 8, Issue 2, Page(s) e12080

    Abstract: Fluid media including sodium chloride 0.9% are used during operative hysteroscopy to provide uterine distension and aid visualisation. Volume overload is a known complication of their use but is usually associated with long procedures or uterine tissue ... ...

    Abstract Fluid media including sodium chloride 0.9% are used during operative hysteroscopy to provide uterine distension and aid visualisation. Volume overload is a known complication of their use but is usually associated with long procedures or uterine tissue dissection. A previously well 40-year-old woman presented for hysteroscopy and evacuation of retained products of conception under general anaesthesia. On emergence, she developed respiratory compromise and a hyperchloraemic metabolic acidosis in keeping with acute pulmonary oedema induced by sodium chloride 0.9% fluid overload. Anaesthetists must remain vigilant during operative procedures using distension media. Additionally, they should be familiar with the clinical and metabolic manifestations consistent with systemic transfusion of such media.
    Language English
    Publishing date 2020-11-12
    Publishing country England
    Document type Case Reports
    ISSN 2637-3726
    ISSN (online) 2637-3726
    DOI 10.1002/anr3.12080
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top