1,701 research outputs found

    Quantification of Plasma and Urine Thymidine and 2'-Deoxyuridine by LC-MS/MS for the Pharmacodynamic Evaluation of Erythrocyte Encapsulated Thymidine Phosphorylase in Patients with Mitochondrial Neurogastrointestinal Encephalomyopathy.

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    Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is an ultra-rare disorder caused by mutations in TYMP, leading to a deficiency in thymidine phosphorylase and a subsequent systemic accumulation of thymidine and 2'-deoxyuridine. Erythrocyte-encapsulated thymidine phosphorylase (EE-TP) is under clinical development as an enzyme replacement therapy for MNGIE. Bioanalytical methods were developed according to regulatory guidelines for the quantification of thymidine and 2'-deoxyuridine in plasma and urine using liquid chromatography-tandem mass spectrometry (LC-MS/MS) for supporting the pharmacodynamic evaluation of EE-TP. Samples were deproteinized with 5% perchloric acid (v/v) and the supernatants analyzed using a Hypercarb column (30 × 2.1 mm, 3 µm), with mobile phases of 0.1% formic acid in methanol and 0.1% formic acid in deionized water. Detection was conducted using an ion-spray interface running in positive mode. Isotopically labelled thymidine and 2'-deoxyuridine were used as internal standards. Calibration curves for both metabolites showed linearity (r > 0.99) in the concentration ranges of 10-10,000 ng/mL for plasma, and 1-50 µg/mL for urine, with method analytical performances within the acceptable criteria for quality control samples. The plasma method was successfully applied to the diagnosis of two patients with MNGIE and the quantification of plasma metabolites in three patients treated with EE-TP

    Perceived vocal morbidity in a problem asthma clinic

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    <p>Aims: Asthma treatment has the potential to affect patients' voices. We undertook detailed characterisation of voice morbidity in patients attending a problem asthma clinic, and we determined how patients' perceptions related to objective assessment by an experienced observer.</p> <p>Methods: Forty-three patients took part in the study. Subjects completed the self-administered voice symptom score (VoiSS) questionnaire and underwent digital voice recording. These voice recordings were scored using the grade–roughness–breathiness–asthenicity–strain system (GRBAS). Laryngoscopy was also performed.</p> <p>Results: The median VoiSS was 26 (range three to 83). VoiSS were significantly lower in the 17 patients with normal laryngeal structure and function (range four to 46; median 22), compared with the 26 patients with functional or structural laryngeal abnormality (range three to 83; median 33) (95 per cent confidence intervals for difference 0.0–21.0; p = 0.044). The overall grade score for the GRBAS scale did not differ between these two groups, and only 13 patients had a GRBAS score of one or more, recognised as indicating a voice problem. There were positive correlations between related GRBAS score and voice symptom score subscales. Although voice symptom scores were significantly more abnormal in patients with structural and functional abnormalities, this score performed only moderately well as a predictive tool (sensitivity 54 per cent; specificity 71 per cent). Nevertheless, the voice symptom score performed as well as the more labour-intensive GRBAS score (sensitivity 57 per cent; specificity 60 per cent). Patients' inhaled corticosteroid dose (median dose 1000 µg beclomethasone dipropionate or equivalent) had a statistically significant relationship with their overall grade score for the GRBAS scale (r = 0.56; p < 0.001), but not with their VoiSS. Only one patient had evidence of laryngeal candidiasis, and only two had any evidence of abnormality suggesting steroid-induced myopathy.</p> <p>Conclusions: Vocal morbidity is common in patients with asthma, and should not be immediately attributed to steroid-related candidiasis. The VoiSS merits further, prospective validation as a screening tool for ENT and/or speech and language therapy referral in patients with asthma.</p&gt

    The effects of obesity with pregnancy termination: a literature review

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    Obesity has become a major health problem in the United States as well as globally which may affect the safety of pregnancy termination. Thus, a literature review was conducted to determine the available evidence regarding the effects of obesity with pregnancy termination to assist with patient care and counseling. The available evidence is limited by small numbers and descriptive study design. While pregnancy termination upon obese women may impart additional technical challenges, experienced providers complete procedures upon obese women without statistically significant differences in procedure or patient outcomes compared to normal weight women for first trimester gestations. Pharmacological abortion may be a more practical option in some very obese women

    Full thickness epidermal burn from a heating pad on a cesarean incision with silver dressing: a case report

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    We present a case of a full thickness epidermal burn resulting from an all-natural clay-based heating pad over a cesarean incision silver dressing to bring awareness to the risks associated with nonpharmacologic management of post cesarean pain. There is limited guidance on nonpharmacological management of post cesarean pain. It is important that providers are able to advise their patients about their options, including to be wary of using heating pads on post-cesarean dressings, especially with pain in the early post-partum period

    Validity and Reliability of Electronic Devices to Measure Muscular Power during Linear Weight Lifting Movements

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    Planned use of long acting reversible postpartum contraception in low-risk women in CenteringPregnancy® group versus individual physician prenatal care

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    Introduction: Education on effective contraceptive methods is necessary during the prenatal period to help women achieve optimal birth spacing. This study identified rates of long-acting reversible contraception (LARC) uptake in women who attended CenteringPregnancy® (CP) group prenatal care versus individual physician care (IP). Methods: Charts for low-risk women who participated in group CP or IP prenatal care between March 2012 and May 2016 were reviewed. Charts of IP subjects were randomly selected in each year to achieve a CP:IP ratio of at least 1:3. The primary outcome was rate of LARC use at discharge and within 8 weeks postpartum. Pearson chi-squared test and Wilcoxon rank-sum tests were performed, and a p-value <0.05 was considered significant. Results: 129 women participated in CP care and 412 in IP care. CP women were more likely nulliparous (91, or 70.5% vs 212, or 51.5%, p=0.0001) and more likely to attend at least 15 prenatal visits (54, or 41.9% vs 62, or 15.1%, p<0.0001). LARC use rates at discharge and at the postpartum visit were similar (36, or 27.9% vs 89, or 21.6%, p=0.142; 39, or 32.2% vs 110, or 29.4%, p=0.557). Rates of women using effective contraception (LARC and other hormonal options, including oral contraceptives and Depo Provera) at discharge and at the postpartum visit were similar (59, or 45.7% vs 206, or 50.0%, p=0.177; 72, or 59.5% vs 229, or 61.2%, p=0.157). IUD use was greater than subdermal implant use in both groups (31, or 24.0% vs 5, or 3.9%; 72, or 17.5% vs 17, or 4.1%; p=0.081). Rates of routine postpartum visit attendance at 6-8 weeks postpartum were similar and high in both groups (121, or 93.8% vs 374, or 90.8%; adjusted p-value=0.164). Conclusion: Although CP subjects had more prenatal visits and spent more time with providers, there was no difference on uptake of LARC or effective contraception at discharge or at the postpartum visit when compared to IP subjects

    Factors affecting the pre- and post-elective abortion contraception choices in Iowa

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    To characterize the contraceptive uses and identify contraceptive concerns and preferences among Iowa women seeking abortion

    Postpartum LARC use in low-risk women in CenteringPregnancy® versus traditional certified nurse midwife prenatal care

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    Contraception satisfaction and utilization is linked to pre-use clinical counseling. Group prenatal care may offer increased opportunity for education on postpartum contraception options. This study evaluated postpartum long acting reversible contraception (LARC) rates in women who attend CenteringPregnancy® group prenatal (CP) care versus individual prenatal care with Certified Nurse Midwives (CNM)

    Maternal demographic and clinical variables do not predict intrauterine contraception placement: Evidence for postplacental intrauterine contraception placement

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    Objective: Determine if specific demographic and clinical variables are associated with intra-uterine contraception (IUC) placement by eight weeks postpartum. Methods: This retrospective cohort study included all patients who delivered at Dartmouth-Hitchcock Medical Center (DHMC) (July-December 2008) who identified IUC as their preferred postpartum contraceptive method. Medical records of patients identified from the birth log were reviewed for preferred contraception, demographics, medical, obstetric, and social histories, as well as payer status. Chi-squared analysis was performed for categorical variables, and Mann-Whitney U test was used for continuous variables. Nonparametric continuous variables were categorized for regression modeling. Results: 224 (34%) patients who delivered identified IUC as their preferred method of postpartum contraception. Of these, 94 (49.7%) women had an IUC placed by 8 weeks postpartum. In univariate analyses comparing those who received an IUC versus those patients who did not, only mean interdelivery interval in months (39.7 vs. 35.5, p=0.027) and mean gravidity (2.3 vs. 2.8, p=0.036) were statistically significant. In multivariate regression modeling, no variables were significantly associated with IUC placement. Conclusions: While statically significant interdelivery interval and gravidity are not likely to be clinically significant. Multivariate modeling failed to identify a model associated with IUC placement suggesting that postpartum IUC placement is not well predicted by patient variables. Lack of identifying factors may support offering postplacental IUC placement to all patients who indicate IUC as their preferred contraceptive method
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