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  1. Artikel ; Online: Chemoradiation to the submental muscles alters hyoid movement during swallowing in a rat model.

    King, Suzanne N / Kuntz, Abigail / Scott, Nathan / Smiley, Brittany / Portocarrero Bonifaz, Andres / Blackburn, Megan

    Journal of applied physiology (Bethesda, Md. : 1985)

    2024  Band 136, Heft 5, Seite(n) 1076–1086

    Abstract: Hyolaryngeal dysfunction is a commonly reported swallowing problem after chemoradiation treatment for head and neck cancer. The displacement of the hyolaryngeal complex during swallowing protects the airway and assists in opening the upper esophageal ... ...

    Abstract Hyolaryngeal dysfunction is a commonly reported swallowing problem after chemoradiation treatment for head and neck cancer. The displacement of the hyolaryngeal complex during swallowing protects the airway and assists in opening the upper esophageal sphincter. Activation of the submental muscles, specifically the mylohyoid and geniohyoid muscles, is thought to facilitate movement of the hyoid. The purpose of this study was to determine if targeted radiation to the submental muscles given concurrently with chemotherapy alters hyolaryngeal displacement 1 mo after treatment. We hypothesized that chemoradiation treatment would result in abnormal patterns of hyoid movement compared with controls. Furthermore, we propose that these changes are associated with alterations in bolus size and discoordination of the jaw during drinking. Eighteen rats underwent either chemoradiation, radiation, or no treatment. Radiation treatment was targeted to submental muscles using a clinical linear accelerator given in 12 fractions of 4 Gy (3 days per week). Cycles of 1 mg/kg of cisplatin were administered concurrently each week of radiation. One month posttreatment, videofluoroscopy swallow studies (VFSS) were performed in self-drinking rats using a fluoroscope customized with a high-speed camera. The hyoid, jaw, and hard palate were tracked during swallowing from VFSS. Hyoid kinematics were analyzed from the start to the end of hyoid movement, and parameters were compared with bolus size and jaw movement. Significant differences in hyoid retraction parameters were found postchemoradiation. Alterations in the trajectory of hyoid motion during swallowing were observed. The findings demonstrate early changes in hyoid motion during swallowing associated with chemoradiation treatment.
    Mesh-Begriff(e) Animals ; Deglutition/drug effects ; Rats ; Hyoid Bone ; Male ; Chemoradiotherapy/methods ; Chemoradiotherapy/adverse effects ; Rats, Sprague-Dawley ; Neck Muscles/drug effects ; Movement ; Deglutition Disorders/physiopathology ; Cisplatin
    Chemische Substanzen Cisplatin (Q20Q21Q62J)
    Sprache Englisch
    Erscheinungsdatum 2024-03-14
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 219139-8
    ISSN 1522-1601 ; 0021-8987 ; 0161-7567 ; 8750-7587
    ISSN (online) 1522-1601
    ISSN 0021-8987 ; 0161-7567 ; 8750-7587
    DOI 10.1152/japplphysiol.00538.2023
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  2. Artikel ; Online: Conditional associations between childhood cat ownership and psychotic experiences in adulthood: A retrospective study.

    Paquin, Vincent / Elgbeili, Guillaume / Munden, Julia / Schmitz, Norbert / Joober, Ridha / Ciampi, Antonio / King, Suzanne

    Journal of psychiatric research

    2022  Band 148, Seite(n) 197–203

    Abstract: ... in adulthood. Adults (n = 2206) were recruited in downtown Montreal to complete a survey about childhood cat ... history, and rodent-hunting cat ownership (n = 22; mean standard score = 0.96). The interaction between ...

    Abstract Ownership of cats in childhood has been inconsistently associated with psychosis in adulthood. Parasitic exposure, the putative mechanism of this association, may be more common with rodent-hunting cats, and its association with psychosis may depend on other environmental exposures. We examined the conditional associations between childhood cat ownership and the frequency of psychotic experiences in adulthood. Adults (n = 2206) were recruited in downtown Montreal to complete a survey about childhood cat ownership (non-hunting or rodent-hunting), winter birth, residential moves in childhood, head trauma history, and tobacco smoking. The frequency of psychotic experiences (PE) was measured with the 15-item positive subscale of the Community Assessment of Psychic Experiences. Associations between exposures and PE were examined in linear regressions adjusted for age and sex. Interactions among variables were explored using a conditional inference tree. Rodent-hunting cat ownership was associated with higher PE scores in male participants (vs. non-hunting or no cat ownership: SMD = 0.57; 95% CI: 0.27, 0.86), but not in female participants (SMD = 0.10; 95% CI: -0.18, 0.38). In the conditional inference tree, the highest mean PE score was in the class comprised of non-smokers with >1 residential move, head trauma history, and rodent-hunting cat ownership (n = 22; mean standard score = 0.96). The interaction between rodent-hunting cat ownership and head trauma history was supported by a post-hoc linear regression model. Our findings suggest childhood cat ownership has conditional associations with psychotic experiences in adulthood.
    Mesh-Begriff(e) Adult ; Craniocerebral Trauma ; Female ; Humans ; Male ; Ownership ; Psychotic Disorders/epidemiology ; Retrospective Studies
    Sprache Englisch
    Erscheinungsdatum 2022-01-30
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3148-3
    ISSN 1879-1379 ; 0022-3956
    ISSN (online) 1879-1379
    ISSN 0022-3956
    DOI 10.1016/j.jpsychires.2022.01.058
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  3. Artikel: Sheath-tailed bats (Chiroptera: Emballonuridae) from the early Pleistocene Rackham's Roost Site, Riversleigh World Heritage Area, and the distribution of northern Australian emballonurid species.

    King, Tyler R / Myers, Troy J / Armstrong, Kyle N / Archer, Michael / Hand, Suzanne J

    PeerJ

    2021  Band 9, Seite(n) e10857

    Abstract: Sheath-tailed bats (Family Emballonuridae) from the early Pleistocene Rackham's Roost Site cave deposit in the Riversleigh World Heritage Area, north-western Queensland are the oldest recorded occurrence for the family in Australia. The fossil remains ... ...

    Abstract Sheath-tailed bats (Family Emballonuridae) from the early Pleistocene Rackham's Roost Site cave deposit in the Riversleigh World Heritage Area, north-western Queensland are the oldest recorded occurrence for the family in Australia. The fossil remains consist of maxillary and dentary fragments, as well as isolated teeth, but until now their precise identity has not been assessed. Our study indicates that at least three taxa are represented, and these are distinguished from other Australian emballonurids based on morphometric analysis of craniodental features. Most of the Rackham's Roost Site emballonurid remains are referrable to the modern species
    Sprache Englisch
    Erscheinungsdatum 2021-02-25
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2703241-3
    ISSN 2167-8359
    ISSN 2167-8359
    DOI 10.7717/peerj.10857
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  4. Artikel ; Online: Sheath-tailed bats (Chiroptera

    Tyler R. King / Troy J. Myers / Kyle N. Armstrong / Michael Archer / Suzanne J. Hand

    PeerJ, Vol 9, p e

    Emballonuridae) from the early Pleistocene Rackham’s Roost Site, Riversleigh World Heritage Area, and the distribution of northern Australian emballonurid species

    2021  Band 10857

    Abstract: Sheath-tailed bats (Family Emballonuridae) from the early Pleistocene Rackham’s Roost Site cave deposit in the Riversleigh World Heritage Area, north-western Queensland are the oldest recorded occurrence for the family in Australia. The fossil remains ... ...

    Abstract Sheath-tailed bats (Family Emballonuridae) from the early Pleistocene Rackham’s Roost Site cave deposit in the Riversleigh World Heritage Area, north-western Queensland are the oldest recorded occurrence for the family in Australia. The fossil remains consist of maxillary and dentary fragments, as well as isolated teeth, but until now their precise identity has not been assessed. Our study indicates that at least three taxa are represented, and these are distinguished from other Australian emballonurids based on morphometric analysis of craniodental features. Most of the Rackham’s Roost Site emballonurid remains are referrable to the modern species Taphozous georgianus Thomas, 1915, but the extant species T. troughtoni Tate, 1952 also appears to be present, as well as a very large, as-yet undetermined species of Saccolaimus Temminck, 1838. We identify craniodental features that clearly distinguish T. georgianus from the externally very similar T. troughtoni. Results suggest that the distributions of T. georgianus and T. troughtoni may have overlapped in north-western Queensland since at least the early Pleistocene.
    Schlagwörter Sheath-tailed bats ; Emballonuridae ; Pleistocene ; Riversleigh World Heritage Area ; Australian distribution ; Medicine ; R ; Biology (General) ; QH301-705.5
    Thema/Rubrik (Code) 590
    Sprache Englisch
    Erscheinungsdatum 2021-02-01T00:00:00Z
    Verlag PeerJ Inc.
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Artikel ; Online: Swallowing dysfunction following radiation to the rat mylohyoid muscle is associated with sensory neuron injury.

    King, Suzanne N / Hurley, Justin / Carter, Zachary / Bonomo, Nicholas / Wang, Brian / Dunlap, Neal / Petruska, Jeffrey

    Journal of applied physiology (Bethesda, Md. : 1985)

    2021  Band 130, Heft 4, Seite(n) 1274–1285

    Abstract: Radiation-based treatments for oropharyngeal and hypopharyngeal cancers result in impairments in swallowing mobility, but the mechanisms behind the dysfunction are not clear. The purpose of this study was to determine if we could establish an animal ... ...

    Abstract Radiation-based treatments for oropharyngeal and hypopharyngeal cancers result in impairments in swallowing mobility, but the mechanisms behind the dysfunction are not clear. The purpose of this study was to determine if we could establish an animal model of radiation-induced dysphagia in which mechanisms could be examined. We hypothesized that
    Mesh-Begriff(e) Animals ; Deglutition ; Deglutition Disorders/etiology ; Neck Muscles ; Pharynx ; Rats ; Sensory Receptor Cells
    Sprache Englisch
    Erscheinungsdatum 2021-02-18
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 219139-8
    ISSN 1522-1601 ; 0021-8987 ; 0161-7567 ; 8750-7587
    ISSN (online) 1522-1601
    ISSN 0021-8987 ; 0161-7567 ; 8750-7587
    DOI 10.1152/japplphysiol.00664.2020
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  6. Artikel ; Online: Acute effects of radiation treatment to submental muscles on burrowing and swallowing behaviors in a rat model.

    King, Suzanne N / Greenwell, Evan / Kaissieh, Nada / Devara, Lekha / Carter, Zachary / Fox, James / Blackburn, Megan

    PloS one

    2022  Band 17, Heft 5, Seite(n) e0268457

    Abstract: Swallowing impairments are a major complication of radiation treatment for oropharyngeal cancers, influencing oral intake and quality of life. The timing and functional consequences of radiation treatment on the swallowing process is not clearly ... ...

    Abstract Swallowing impairments are a major complication of radiation treatment for oropharyngeal cancers, influencing oral intake and quality of life. The timing and functional consequences of radiation treatment on the swallowing process is not clearly understood. A rodent radiation injury model was used to investigate the onset of oral and pharyngeal dysfunctions in deglutition related to radiation treatment. This study tested the hypothesis that (Wall et al., 2013) alterations in normal biting, licking, and swallowing performance would be measurable following 64Gy of fractionated radiation to the submental muscles; and (Kotz et al., 2004) radiation will affect the animal's general well-being as measured via burrowing activity. Seven rats received radiation using a clinical linear accelerator given in 8 fractions of 8Gy and another seven animals received sham anesthesia only treatment. Swallowing bolus transit/size was assessed via videofluoroscopy, tongue movement during drinking was measured via an electrical lick sensor, and biting was analyzed from acoustic recordings of a vermicelli pasta test. Burrowing activity was measured by the amount of gravel substrate displaced within a container. Measurements were taken at baseline, during treatment (1-4 weeks), and after completion of treatment (weeks 5 & 6). Decreases in licking frequency and increases in inter-lick interval were observed 5- and 6-weeks post-treatment. Significant decreases in burrowing performance, swallowing frequency, and inter-swallow interval were observed starting the last week of treatment and continuing up to 2-weeks after completion. Results suggest that tongue dysfunction is one of the first treatment related feeding problems to present immediately after the completion of radiation to the submental muscles.
    Mesh-Begriff(e) Animals ; Deglutition/physiology ; Deglutition Disorders ; Muscles ; Quality of Life ; Rats ; Tongue/physiology
    Sprache Englisch
    Erscheinungsdatum 2022-05-13
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0268457
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  7. Artikel ; Online: “The Actor Is Policy”

    Moses Mukuru / Suzanne N. Kiwanuka / Lucy Gilson / Maylene Shung-King / Freddie Ssengooba

    International Journal of Health Policy and Management, Vol 10, Iss Special Issue on Analysing the Politics of Health Policy Change in LMICs, Pp 388-

    Application of Elite Theory to Explore Actors’ Interests and Power Underlying Maternal Health Policies in Uganda, 2000-2015

    2021  Band 401

    Abstract: BackgroundThe persistence of high maternal mortality and consistent failure in low- and middle-income countries to achieve global targets such as Millennium Development Goal five (MDG 5) is usually explained from epidemiological, interventional and ... ...

    Abstract BackgroundThe persistence of high maternal mortality and consistent failure in low- and middle-income countries to achieve global targets such as Millennium Development Goal five (MDG 5) is usually explained from epidemiological, interventional and health systems perspectives. The role of policy elites and their interests remains inadequately explored in this debate. This study examined elites and how their interests drove maternal health policies and actions in ways that could explain policy failure for MDG 5 in Uganda. MethodsWe conducted a retrospective qualitative study of Uganda’s maternal health policies from 2000 to 2015 (MDG period). Thirty key informant interviews and 2 focus group discussions (FGDs) were conducted with national policy-makers, who directly participated in the formulation of Uganda’s maternal health policies during the MDG period. We reviewed 9 National Maternal Health Policy documents. Data were analysed inductively using elite theory. ResultsMaternal health policies were mainly driven by a small elite group comprised of Senior Ministry of Health (MoH) officials, some members of cabinet and health development partners (HDPs) who wielded more power than other actors. The resulting policies often appeared to be skewed towards elites’ personal political and economic interests, rather than maternal mortality reduction. For a few, however, interests aligned with reducing maternal mortality. Since complying with the government policy-making processes would have exposed elites’ personal interests, they mainly drafted policies as service standards and programme documents to bypass the formal policy process. ConclusionUganda’s maternal health policies were mainly influenced by the elites’ personal interests rather than by the goal of reducing maternal mortality. This was enabled by the formal guidance for policy-making which gives elites control over the policy process. Accelerating maternal mortality reduction will require re-engineering the policy process to prevent public officials from ...
    Schlagwörter policy elites ; millennium development goals ; maternal health ; uganda ; Public aspects of medicine ; RA1-1270
    Sprache Englisch
    Erscheinungsdatum 2021-07-01T00:00:00Z
    Verlag Kerman University of Medical Sciences
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  8. Artikel ; Online: Acute effects of radiation treatment to submental muscles on burrowing and swallowing behaviors in a rat model.

    Suzanne N King / Evan Greenwell / Nada Kaissieh / Lekha Devara / Zachary Carter / James Fox / Megan Blackburn

    PLoS ONE, Vol 17, Iss 5, p e

    2022  Band 0268457

    Abstract: Swallowing impairments are a major complication of radiation treatment for oropharyngeal cancers, influencing oral intake and quality of life. The timing and functional consequences of radiation treatment on the swallowing process is not clearly ... ...

    Abstract Swallowing impairments are a major complication of radiation treatment for oropharyngeal cancers, influencing oral intake and quality of life. The timing and functional consequences of radiation treatment on the swallowing process is not clearly understood. A rodent radiation injury model was used to investigate the onset of oral and pharyngeal dysfunctions in deglutition related to radiation treatment. This study tested the hypothesis that (Wall et al., 2013) alterations in normal biting, licking, and swallowing performance would be measurable following 64Gy of fractionated radiation to the submental muscles; and (Kotz et al., 2004) radiation will affect the animal's general well-being as measured via burrowing activity. Seven rats received radiation using a clinical linear accelerator given in 8 fractions of 8Gy and another seven animals received sham anesthesia only treatment. Swallowing bolus transit/size was assessed via videofluoroscopy, tongue movement during drinking was measured via an electrical lick sensor, and biting was analyzed from acoustic recordings of a vermicelli pasta test. Burrowing activity was measured by the amount of gravel substrate displaced within a container. Measurements were taken at baseline, during treatment (1-4 weeks), and after completion of treatment (weeks 5 & 6). Decreases in licking frequency and increases in inter-lick interval were observed 5- and 6-weeks post-treatment. Significant decreases in burrowing performance, swallowing frequency, and inter-swallow interval were observed starting the last week of treatment and continuing up to 2-weeks after completion. Results suggest that tongue dysfunction is one of the first treatment related feeding problems to present immediately after the completion of radiation to the submental muscles.
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 616
    Sprache Englisch
    Erscheinungsdatum 2022-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  9. Artikel ; Online: Acute effects of radiation treatment to submental muscles on burrowing and swallowing behaviors in a rat model

    Suzanne N. King / Evan Greenwell / Nada Kaissieh / Lekha Devara / Zachary Carter / James Fox / Megan Blackburn

    PLoS ONE, Vol 17, Iss

    2022  Band 5

    Abstract: Swallowing impairments are a major complication of radiation treatment for oropharyngeal cancers, influencing oral intake and quality of life. The timing and functional consequences of radiation treatment on the swallowing process is not clearly ... ...

    Abstract Swallowing impairments are a major complication of radiation treatment for oropharyngeal cancers, influencing oral intake and quality of life. The timing and functional consequences of radiation treatment on the swallowing process is not clearly understood. A rodent radiation injury model was used to investigate the onset of oral and pharyngeal dysfunctions in deglutition related to radiation treatment. This study tested the hypothesis that (Wall et al., 2013) alterations in normal biting, licking, and swallowing performance would be measurable following 64Gy of fractionated radiation to the submental muscles; and (Kotz et al., 2004) radiation will affect the animal’s general well-being as measured via burrowing activity. Seven rats received radiation using a clinical linear accelerator given in 8 fractions of 8Gy and another seven animals received sham anesthesia only treatment. Swallowing bolus transit/size was assessed via videofluoroscopy, tongue movement during drinking was measured via an electrical lick sensor, and biting was analyzed from acoustic recordings of a vermicelli pasta test. Burrowing activity was measured by the amount of gravel substrate displaced within a container. Measurements were taken at baseline, during treatment (1–4 weeks), and after completion of treatment (weeks 5 & 6). Decreases in licking frequency and increases in inter-lick interval were observed 5- and 6-weeks post-treatment. Significant decreases in burrowing performance, swallowing frequency, and inter-swallow interval were observed starting the last week of treatment and continuing up to 2-weeks after completion. Results suggest that tongue dysfunction is one of the first treatment related feeding problems to present immediately after the completion of radiation to the submental muscles.
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 616
    Sprache Englisch
    Erscheinungsdatum 2022-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  10. Artikel ; Online: "The Actor Is Policy": Application of Elite Theory to Explore Actors' Interests and Power Underlying Maternal Health Policies in Uganda, 2000-2015.

    Mukuru, Moses / Kiwanuka, Suzanne N / Gilson, Lucy / Shung-King, Maylene / Ssengooba, Freddie

    International journal of health policy and management

    2021  Band 10, Heft 7, Seite(n) 388–401

    Abstract: Background: The persistence of high maternal mortality and consistent failure in low- and middle-income countries to achieve global targets such as Millennium Development Goal five (MDG 5) is usually explained from epidemiological, interventional and ... ...

    Abstract Background: The persistence of high maternal mortality and consistent failure in low- and middle-income countries to achieve global targets such as Millennium Development Goal five (MDG 5) is usually explained from epidemiological, interventional and health systems perspectives. The role of policy elites and their interests remains inadequately explored in this debate. This study examined elites and how their interests drove maternal health policies and actions in ways that could explain policy failure for MDG 5 in Uganda.
    Methods: We conducted a retrospective qualitative study of Uganda's maternal health policies from 2000 to 2015 (MDG period). Thirty key informant interviews and 2 focus group discussions (FGDs) were conducted with national policy-makers, who directly participated in the formulation of Uganda's maternal health policies during the MDG period. We reviewed 9 National Maternal Health Policy documents. Data were analysed inductively using elite theory.
    Results: Maternal health policies were mainly driven by a small elite group comprised of Senior Ministry of Health (MoH) officials, some members of cabinet and health development partners (HDPs) who wielded more power than other actors. The resulting policies often appeared to be skewed towards elites' personal political and economic interests, rather than maternal mortality reduction. For a few, however, interests aligned with reducing maternal mortality. Since complying with the government policy-making processes would have exposed elites' personal interests, they mainly drafted policies as service standards and programme documents to bypass the formal policy process.
    Conclusion: Uganda's maternal health policies were mainly influenced by the elites' personal interests rather than by the goal of reducing maternal mortality. This was enabled by the formal guidance for policy-making which gives elites control over the policy process. Accelerating maternal mortality reduction will require re-engineering the policy process to prevent public officials from infusing policies with their interests, and enable percolation of ideas from the public and frontline.
    Mesh-Begriff(e) Female ; Health Policy ; Humans ; Maternal Health ; Policy Making ; Retrospective Studies ; Uganda
    Sprache Englisch
    Erscheinungsdatum 2021-07-01
    Erscheinungsland Iran
    Dokumenttyp Journal Article ; Review
    ZDB-ID 2724317-5
    ISSN 2322-5939 ; 2322-5939
    ISSN (online) 2322-5939
    ISSN 2322-5939
    DOI 10.34172/ijhpm.2020.230
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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