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8 results on '"Christina A. Day"'

1. Reliability and Time Course of Postexercise Hypotension during Exercise Training among Adults with Hypertension

Author

Peter A. Kiernan, Christina A. Day, Rachel S. Berkowsky, Amanda L. Zaleski, Simiao Gao, Beth A. Taylor, Lucas P. Santos, Gregory Panza, Melody Kramarz, Kyle McCormick, Paul D. Thompson, Antonio B. Fernandez, Ming-Hui Chen, and Linda S. Pescatello

Subjects
blood pressure, cardiovascular disease, physical activity, antihypertensive therapy, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract

Postexercise hypotension (PEH), or the immediate decrease in blood pressure (BP) lasting for 24 h following an exercise bout, is well-established; however, the influence of exercise training on PEH dynamics is unknown. This study investigated the reliability and time course of change of PEH during exercise training among adults with hypertension. PEH responders (n = 10) underwent 12 weeks of aerobic exercise training, 40 min/session at moderate-to-vigorous intensity for 3 d/weeks. Self-measured BP was used to calculate PEH before and for 10 min after each session. The intraclass correlation coefficient (ICC) and Akaike Information Criterion (AIC) determined PEH reliability and goodness-of-fit for each week, respectively. Participants were obese (30.6 ± 4.3 kg∙m−2), middle-aged (57.2 ± 10.5 years), and mostly men (60%) with stage I hypertension (136.5 ± 12.1/83.4 ± 6.7 mmHg). Exercise training adherence was 90.6 ± 11.8% with 32.6 ± 4.2 sessions completed. PEH occurred in 89.7 ± 8.3% of these sessions with BP reductions of 9.3 ± 13.1/3.2 ± 6.8 mmHg. PEH reliability was moderate (ICC ~0.6). AIC analysis revealed a stabilization of maximal systolic and diastolic BP reductions at 3 weeks and 10 weeks, respectively. PEH persisted throughout exercise training at clinically meaningful levels, suggesting that the antihypertensive effects of exercise training may be largely due to PEH. Further studies in larger samples and under ambulatory conditions are needed to confirm these novel findings.

Published
2024
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2. The Reproducibility Of Postexercise Hypotension Over A 12-week Exercise Training Program Among Adults With Hypertension

Author

Peter Andrew Kiernan, Christina A. Day, Rachel S. Berkowsky, Amanda L. Zaleski, Beth A. Taylor, Lucas P. Santos, Gregory Panza, Melody Kramarz, Kyle McCormick, Paul D. Thompson, Antonio B. Fernandez, Ming-Hui Chen, and Linda S. Pescatello

Subjects
Physical Therapy, Sports Therapy and Rehabilitation, Orthopedics and Sports Medicine
Published
2022
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3. Warren Seelig: Textile per se

Author

Christina P. Day

Subjects
General Arts and Humanities, media_common.quotation_subject, Art, Pulp and paper industry, Textile (markup language), media_common
Published
2011
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4. Optimizing prostate specimen handling for diagnosis and prognosis

Author

David G, Bostwick, Christina E, Day, and Isabelle, Meiers

Subjects
Male, Biopsy, Prostate, Transurethral Resection of Prostate, Humans, Prostatic Neoplasms, Biopsy, Large-Core Needle, Prognosis
Abstract

Optimal processing, handling, and sampling of prostatic biopsies, transurethral resections, and radical prostatectomy specimens ensure accurate diagnosis and staging. Prognostic factors derived from careful examination of tissue samples are critical for patient management, including cancer volume, extraprostatic extension, surgical margins, vascular/lymphatic invasion, and perineural invasion. This chapter addresses these important issues, including recent recommendations of a consensus panel of the International Society of Urologic Pathologists.

Published
2014

5. The pathologist's guide to fixatives

Author

Kiran, Qidwai, Michelle, Afkhami, and Christina E, Day

Subjects
Fixatives, Tissue Fixation, Organ Specificity, Pathology, Humans
Abstract

Proper tissue fixation is essential to ensure the highest level of specimen evaluation. Pathologists and laboratory staff are frequently consulted by clinical counterparts regarding what fixative should be used for different tissues or to enable a diagnosis of a specific condition. It is vital for the patient that the pathologist provides accurate information to ensure proper fixation. Frequently, once a tissue has been fixed inadequately or inappropriately, remedial changes may no longer be possible. Most often formalin is an adequate choice, if not the optimal one; however, there are certain situations when placing the tissue in formalin may limit the ability to reach a definitive diagnosis. It is imperative for pathologists to have the knowledge to communicate which fixative is optimal. Furthermore, as we move into a world of personalized medicine, where ancillary testing has both diagnostic and specific therapeutic implications, knowledge about how different fixatives affect immunohistochemistry, cytogenetics, and molecular studies becomes even more significant. This chapter provides practical information regarding common fixatives, their mechanism of action and optimal uses.

Published
2014

6. The Pathologist’s Guide to Fixatives

Author

Michelle Afkhami, Kiran Qidwai, and Christina E. Day

Subjects
Pathology, medicine.medical_specialty, business.industry, medicine, Personalized medicine, business, Fixation (histology)
Abstract

Proper tissue fixation is essential to ensure the highest level of specimen evaluation. Pathologists and laboratory staff are frequently consulted by clinical counterparts regarding what fixative should be used for different tissues or to enable a diagnosis of a specific condition. It is vital for the patient that the pathologist provides accurate information to ensure proper fixation. Frequently, once a tissue has been fixed inadequately or inappropriately, remedial changes may no longer be possible. Most often formalin is an adequate choice, if not the optimal one; however, there are certain situations when placing the tissue in formalin may limit the ability to reach a definitive diagnosis. It is imperative for pathologists to have the knowledge to communicate which fixative is optimal. Furthermore, as we move into a world of personalized medicine, where ancillary testing has both diagnostic and specific therapeutic implications, knowledge about how different fixatives affect immunohistochemistry, cytogenetics, and molecular studies becomes even more significant. This chapter provides practical information regarding common fixatives, their mechanism of action and optimal uses.

Published
2014
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7. Optimizing Prostate Specimen Handling for Diagnosis and Prognosis

Author

Isabelle Meiers, Christina E. Day, and David G. Bostwick

Subjects
medicine.medical_specialty, business.industry, Prostatectomy, Lymphovascular invasion, medicine.medical_treatment, Perineural invasion, Cancer, medicine.disease, medicine.anatomical_structure, Prostate, Medicine, Specimen Handling, Sampling (medicine), Radiology, Extraprostatic extension, business
Abstract

Optimal processing, handling, and sampling of prostatic biopsies, transurethral resections, and radical prostatectomy specimens ensure accurate diagnosis and staging. Prognostic factors derived from careful examination of tissue samples are critical for patient management, including cancer volume, extraprostatic extension, surgical margins, vascular/lymphatic invasion, and perineural invasion. This chapter addresses these important issues, including recent recommendations of a consensus panel of the International Society of Urologic Pathologists.

Published
2014
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8. Effects of Fermentation by Yeast and Amylolytic Lactic Acid Bacteria on Grain Sorghum Protein Content and Digestibility

Author

Christina N. Day and Ruben O. Morawicki

Subjects
Nutrition. Foods and food supply, TX341-641
Abstract

Despite many advantages to its cultivation, grain sorghum is an underutilized crop because of low nutrient availability, particularly protein digestibility, due to antinutritional compounds in the grain and by moist-heat cooking. Some of these concerns can be mitigated by how the grain is processed. Fermentation is one processing method that can improve digestibility and at the same time concentrate protein in a substrate. In this experiment, grain sorghum was subjected to different treatments and fermented with baker’s yeast (Saccharomyces cerevisiae) and an amylolytic species, Lipomyces kononenkoae, to improve and increase protein content. The effects of pasteurization or sterilization of the substrate, nitrogen supplementation, amyloglucosidase addition, and coculture with Lactobacillus amylovorus were examined. After fermentation, baker’s yeast samples treated with enzyme increased in crude protein, from 9% in unfermented grain to approximately 27% after treatment. Nitrogen supplementation accelerated protein enrichment and was a significant factor at 24 hours of fermentation. Both types of yeast increased pepsin digestibility of sorghum protein compared to thermally processed control samples. The ratio of phytate to protein was reduced by both yeast species. L. kononenkoae reduced phytates in the substrate but did not enrich protein content. The lactic coculture had no significant effect on measured responses.

Published
2018
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