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  1. Artikel ; Online: Preclinical testing of a prototype medical device to treat cervical insufficiency.

    House, Michael / Campbell, Devon C / Hickman, Dwayne / Laing, Genevieve / Craigo, Sabrina

    American journal of obstetrics & gynecology MFM

    2023  Band 6, Heft 1, Seite(n) 101236

    Sprache Englisch
    Erscheinungsdatum 2023-11-23
    Erscheinungsland United States
    Dokumenttyp Letter
    ISSN 2589-9333
    ISSN (online) 2589-9333
    DOI 10.1016/j.ajogmf.2023.101236
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: A novel deletion involving the first GNAS exon encoding Gsα causes PHP1A without methylation changes at exon A/B.

    Campbell, Devon / Reyes, Monica / Kaygusuz, Sare Betul / Abali, Saygın / Guran, Tulay / Bereket, Abdullah / Kagami, Masayo / Turan, Serap / Jüppner, Harald

    Bone

    2022  Band 157, Seite(n) 116344

    Abstract: Individuals affected by pseudohypoparathyroidism type 1A (PHP1A) display hyperphosphatemia and hypocalcemia despite elevated PTH levels, as well as features of Albright Hereditary Osteodystrophy (AHO). PHP1A is caused by variants involving the maternal ... ...

    Abstract Individuals affected by pseudohypoparathyroidism type 1A (PHP1A) display hyperphosphatemia and hypocalcemia despite elevated PTH levels, as well as features of Albright Hereditary Osteodystrophy (AHO). PHP1A is caused by variants involving the maternal GNAS exons 1-13 encoding the stimulatory G protein α-subunit (Gsα). MLPA and aCGH analysis led in a male PHP1A patient to identification of a de novo 1284-bp deletion involving GNAS exon 1. This novel variant overlaps with a previously identified 1438-bp deletion in another PHP1A patient (ref. Li et al. (2020) [13], patient 2) that extends from the exon 1 promoter into the up-stream intronic region. This latter deletion is associated with reduced methylation at GNAS exon A/B, i.e. the differentially methylated region (DMR) that is demethylated in most pseudohypoparathyroidism type 1B (PHP1B) patients. In contrast, genomic DNA from our patient revealed no evidence for an epigenetic GNAS defect as determined by MS-MLPA and pyrosequencing. These findings thus reduce the region, which, in addition to other nucleotide sequences telomeric of exon A/B, may undergo histone modifications or interacts with transcription factors and possibly as-yet unknown proteins that are required for establishing the maternal methylation imprints at this site. Taken together, nucleotide deletions or changes within an approximately 1300-bp region telomeric of exon A/B could be a cause of PHP1B variants with complete or incomplete loss-of-methylation at the exon A/B DMR. In addition, when investigating patients with suspected PHP1A, MLPA should be considered to search for structural abnormalities within this difficult to analyze genomic region comprising GNAS exon 1.
    Mesh-Begriff(e) Chromogranins/genetics ; DNA Methylation ; Exons ; GTP-Binding Protein alpha Subunits, Gs/genetics ; Humans ; Male ; Pseudohypoparathyroidism/genetics ; Pseudohypoparathyroidism
    Chemische Substanzen Chromogranins ; GNAS protein, human (EC 3.6.1.-) ; GTP-Binding Protein alpha Subunits, Gs (EC 3.6.5.1)
    Sprache Englisch
    Erscheinungsdatum 2022-01-29
    Erscheinungsland United States
    Dokumenttyp Case Reports ; Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 632515-4
    ISSN 1873-2763 ; 8756-3282
    ISSN (online) 1873-2763
    ISSN 8756-3282
    DOI 10.1016/j.bone.2022.116344
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Prospective Assessment of Pain and Comfort in Chronic Pain Patients Undergoing Interventional Pain Management Procedures.

    Simopoulos, Thomas / Leffler, Daniel / Barnett, Sheila / Campbell, Devon / Lian, Shu Jing / Gill, Jatinder S

    Pain medicine (Malden, Mass.)

    2017  Band 19, Heft 2, Seite(n) 336–347

    Abstract: Objective: Interventional pain management procedures have an important role in the management of chronic pain. The present study seeks to identify the proportion of patients who experience severe pain during pain procedures either with or without ... ...

    Abstract Objective: Interventional pain management procedures have an important role in the management of chronic pain. The present study seeks to identify the proportion of patients who experience severe pain during pain procedures either with or without sedation. There is then an attempt to identify any association of high pain levels with factors such as age, gender, ethnicity, preprocedure pain level, procedure type, tobacco use, and baseline pharmaceuticals taken for both pain and/or mood disorder management.
    Methods: This is a prospective survey study evaluating patients' discomfort during interventional pain procedures in an outpatient academic facility. Patient discomfort was assessed by the PROcedural Sedation Assessment Survey (PROSAS) and modified for nonsedation cases.
    Results: There were 155 patients in the survey, with 20 of these receiving nonspinal injections. Of the remaining 135 patients who underwent spinal injections, only 10 received conscious sedation. On average, 14.2% experienced severe pain during spinal injections, whereas 20% experienced severe pain with nonspinal injections. Though few patients received conscious sedation, most of these (60%) experienced high levels of pain. There was no correlation between level of procedural pain with age, gender, ethnicity, preprocedure pain level, procedure type, tobacco use, or medication type used.
    Conclusions: The majority of patients who undergo nonsedated interventional pain management procedures do not experience severe pain. There is a small but appreciable group of subjects who seem to experience severe pain that cannot be correlated to any particular clinical characteristic in a standard patient evaluation. Even with standard conscious sedation, there is no clear best method to ensure patient comfort for this high-pain level group.
    Mesh-Begriff(e) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Analgesics/administration & dosage ; Chronic Pain/therapy ; Female ; Humans ; Injections/adverse effects ; Male ; Middle Aged ; Pain Management/adverse effects ; Pain Management/methods ; Pain, Procedural/epidemiology ; Prospective Studies ; Risk Factors ; Surveys and Questionnaires ; Young Adult
    Chemische Substanzen Analgesics
    Sprache Englisch
    Erscheinungsdatum 2017-04-21
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 2015903-1
    ISSN 1526-4637 ; 1526-2375
    ISSN (online) 1526-4637
    ISSN 1526-2375
    DOI 10.1093/pm/pnx064
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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