1
|
LaPlant HW, Francis-Edoziuno C, Guan Z, Aderibigbe T, Chang X, Alhabodal AS, Delaney K, Scott D, Marshall-Crim M, Freytes I, Henderson WA, Walsh S, Lucas RF. Retention and the Intersection of Structural Inequities in a Breastfeeding Intervention Study. medRxiv 2024:2024.03.15.24304355. [PMID: 38559187 PMCID: PMC10980120 DOI: 10.1101/2024.03.15.24304355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Introduction Women below the poverty threshold have lower representation and retention in breastfeeding studies. Methods A secondary analysis of a longitudinal randomized controlled self-management for breast and nipple pain during breastfeeding study. Participants completed online surveys at discharge, weeks 1, 2, 3, 6, 9, 12, 18, and 24, with face-to-face interviews at 6 and 24 weeks. Text messages were sent to participants when modules and surveys were due. Retention was assessed in R with descriptive statistics, Mann-Whitney, Pearson's chi-square, and Cox Proportional Hazard Regression. Results Two hundred and forty-four women (89 ≤$50,000 and 155 >$50,000) were recruited. Retention rates at 1 (93%), 2 (87%), 6 (82%), 9 (77%) and 24 (72%) weeks. For women of low income compared to those of high income there was a hazard ratio (HR) of 2.5 (p=0.0001) for retention. For non-Hispanic Black and Hispanic women compared to the combined non-Hispanic White and Other group, HRs for retention were 3.3 and 2.6 respectively (p=0.0001). Adjustment for age in the final hazard regression model of income, age, race and ethnicity decreased the HR for women of low income to 1.6 and HRs for non-Hispanic Black and Hispanic women to 2.1 and 1.9, respectively (p=.0001). However, none of the individual factors in the model achieved statistical significance. Discussion Retention in breastfeeding studies impacts breastfeeding duration, a key lifelong preventative health behavior. Despite accessible study design, retention of women desiring to breastfeed was adversely affected by the intersection of income, race and ethnicity, and age.
Collapse
Affiliation(s)
| | | | - Zhe Guan
- Department of Statistics, University of Connecticut
| | | | | | | | | | - Dana Scott
- Obstetrics and Gynecology Unit, Breast Health and Cancer Genetics, University of Connecticut Health Center
| | | | | | | | | | | |
Collapse
|
2
|
Aderibigbe T, Srisopa P, Henderson WA, Lucas R. Meta-ethnography on the Experiences of Women From Around the World Who Exclusively Breastfed Their Full-Term Infants. J Obstet Gynecol Neonatal Nurs 2024; 53:120-131. [PMID: 38104632 DOI: 10.1016/j.jogn.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 11/08/2023] [Accepted: 11/15/2023] [Indexed: 12/19/2023] Open
Abstract
OBJECTIVE To synthesize evidence from qualitative studies on the experiences of women from around the world who exclusively breastfed their full-term infants. DATA SOURCES CINAHL Plus, PubMed, APA PsycInfo, Scopus, and ProQuest Dissertation & Theses Global. STUDY SELECTION We selected reports of qualitative studies that were conducted in high-, middle-, and low-income countries; published between January 2001 and February 2022 in English; and focused on the experiences of women who exclusively breastfed their full-term infants. DATA EXTRACTION We extracted the following data from included studies: methodological characteristics (i.e., country of origin, authors' disciplines, research design, sample size, sampling, data collection, and data analysis method), participants' demographics (i.e., age, parity, marital status, education, and exclusive breastfeeding duration) and direct participant quotes, and key concepts and themes about women's experiences of exclusive breastfeeding. We managed and stored extracted data using a Microsoft Excel spreadsheet. DATA SYNTHESIS We synthesized reciprocal translations using Noblit and Hare's approach to meta-ethnography. Five overarching themes emerged from the meta-synthesis: Favorable Conditions, Not a Smooth Journey,Support, Determination and Perseverance, and Reflections on Benefits. CONCLUSION In the included studies, participants experienced challenges with exclusive breastfeeding; however, they also recounted benefits. We recommend 6-month maternity leave and support from family and health care professionals to improve rates of exclusive breastfeeding.
Collapse
|
3
|
Wood RE, Matthews EE, Bourgault A, Rice M, Hershberger PE, Voss JG, Loerzel V, Henderson WA, Talsma A, Kinser PA. Strategies to Strengthen Nursing PhD Enrollment: An Ecological Systems Perspective. J Nurs Educ 2023; 62:669-678. [PMID: 38049303 DOI: 10.3928/01484834-20231006-05] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
BACKGROUND Nurses with a Doctor of Philosophy (PhD) degree are essential to developing nursing knowledge, promoting health outcomes, and educating the next generation of nurses. Declining enrollment in nursing PhD programs calls for purposeful action. Guided by Bronfenbrenner's Ecological Systems Framework, this article outlines barriers and facilitators, and offers strategies to increase PhD enrollment. METHOD Extant literature and the authors' cumulative experiences in PhD education and research were reviewed to identify strategies to increase PhD enrollment. RESULTS Multilevel influences impede or facilitate enrollment in PhD programs. Strategies addressing individual and interpersonal influences included intentional personalized recruiting and early outreach to students at various levels of education. Institutional and organizational strategies included research partnerships and programs, and financial and infrastructure support. Sociocultural strategies included image branding and a positive social media presence supporting nurse scientists. CONCLUSION Strategies to enhance PhD enrollment across all levels can spark interest in nursing science and PhD enrollment. [J Nurs Educ. 2023;62(12):669-678.].
Collapse
|
4
|
Aderibigbe T, Walsh S, Henderson WA, Lucas RF. Psychometric testing of the breastfeeding self-efficacy scale to measure exclusive breastfeeding in African American women: a cross-sectional study. Front Public Health 2023; 11:1196510. [PMID: 37822543 PMCID: PMC10563511 DOI: 10.3389/fpubh.2023.1196510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 09/12/2023] [Indexed: 10/13/2023] Open
Abstract
Background In United States, African American women are the least likely group to breastfeed exclusively compared with Hispanic and non-Hispanic white women. It is crucial to examine the perceived confidence of African American women towards practicing exclusive breastfeeding. Previous studies have examined breastfeeding self-efficacy and other factors influencing exclusive breastfeeding. However, there is no research on exclusive breastfeeding self-efficacy of this population. The purpose of this study was to examine the validity and reliability of the breastfeeding self-efficacy scale to measure exclusive breastfeeding, and the relationship between exclusive breastfeeding self-efficacy and general self-efficacy and demographic variables in African American women. Methods Descriptive cross-sectional design was used. A convenience sample of 53 pregnant African American women completed an online survey. Construct and criterion-related validity were assessed and reliability of the breastfeeding self-efficacy scale to measure exclusive breastfeeding (BSES-EBF) was examined using Cronbach's reliability. The general self-efficacy scale measured general self-efficacy. Descriptive statistics, bivariate correlation and non-parametric analyses were performed using statistical package for social sciences (v.28). Results The breastfeeding self-efficacy to measure exclusive breastfeeding scale had a Cronbach's alpha score of 0.907. One principal component was extracted from the BSES-EBF scale, with an Eigenvalue of 5.271 and which explained 58.57% of the variance in the instrument. The mean prenatal exclusive breastfeeding self-efficacy of participants was 35.15 (±7.41) from a range of 9 to 45. Exclusive breastfeeding was significantly associated with general self-efficacy (r = 0.503, p ≤ 0.001) and exclusive breastfeeding intention (p = 0.034). Conclusion Breastfeeding self-efficacy scale to measure exclusive breastfeeding is a valid and reliable tool to measure exclusive breastfeeding self-efficacy in African American women. African American women had high exclusive breastfeeding self-efficacy (internal motivation). Hence, there is a need to address breastfeeding barriers and provide access to culturally sensitive support (external motivation) to increase exclusive breastfeeding in African American women.
Collapse
Affiliation(s)
- Tumilara Aderibigbe
- School of Nursing, University of Connecticut, Storrs, CT, United States
- College of Nursing, University of Utah, Salt Lake City, UT, United States
| | - Stephen Walsh
- School of Nursing, University of Connecticut, Storrs, CT, United States
| | - Wendy A. Henderson
- School of Nursing, University of Connecticut, Storrs, CT, United States
- School of Medicine, University of Connecticut, Storrs, CT, United States
| | - Ruth F. Lucas
- School of Nursing, University of Connecticut, Storrs, CT, United States
- School of Medicine, University of Connecticut, Storrs, CT, United States
| |
Collapse
|
5
|
Coco M, Henderson WA, Park CL, Starkweather AR. Growing beyond sickle cell disease: A metasynthesis of children, adolescents, and young adult experiences living with sickle cell disease. Res Nurs Health 2023; 46:299-312. [PMID: 37036038 DOI: 10.1002/nur.22310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/12/2023] [Accepted: 03/26/2023] [Indexed: 04/11/2023]
Abstract
Children, adolescents, and young adults living with sickle cell disease (SCD) often experience an unpredictable and complex disease course. Although there is a growing literature on the lived experience of patients with SCD, qualitative syntheses are lacking. Therefore, a qualitative metasynthesis was conducted to inform care and potential interventions. Noblit and Hare's phases of metaethnographic research were used to guide the synthesis of qualitative data. Data extracted from the identified studies were directly compared through reciprocal translation. The 12 studies that met inclusion criteria for the meta-synthesis included 177 participants ranging in age from 6 to 35 years old from six different countries. The authors identified three key metaphors: Ubiquitous Intrusion, Coping to Learn: Learning to Cope, and Part of the Whole. The metaphors were elucidated by three essential concepts that underlie the experience of children, adolescents, and young adults living with SCD: (1) recognition of SCD implications, (2) identifying ways to balance responsibilities, and (3) positioning oneself to thrive with SCD. The metaphors and essential concepts support the global theme of "Growing Beyond SCD." The metasynthesis revealed the shared complexity of living with SCD among children, adolescents, and young adults from diverse cultures in which the yearning for a normal life drove learning to adapt and manage SCD with their support network. The key metaphors may be used to guide development of nursing interventions designed to promote self-acceptance, coping, and adaptation skills among children, adolescents, and young adults that will help them to flourish while managing SCD as a chronic condition.
Collapse
Affiliation(s)
- Megan Coco
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | - Wendy A Henderson
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | - Crystal L Park
- Department of Psychological Sciences, University of Connecticut, Storrs, Connecticut, USA
| | | |
Collapse
|
6
|
Gyamfi A, Spatz DL, Jefferson UT, Lucas R, O'Neill B, Henderson WA. Breastfeeding Social Support Among African American Women in the United States: A Meta-Ethnography. Adv Neonatal Care 2023; 23:72-80. [PMID: 35939758 PMCID: PMC9891275 DOI: 10.1097/anc.0000000000001021] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND In the United States, there are racial disparities in 6 months of exclusive breastfeeding. Only, 25.8% of American infants were breastfed for the first 180 days of life, with African American infants least (19.8%) exclusively breastfed in 2018. PURPOSE The meta-ethnography explored the breastfeeding support for African American women in the United States. DATA SOURCES The online databases of American Psychological Association, PsycINFO, Cumulative Index to Nursing and Allied Health Literature, PubMed, and Scopus were searched with key words, and the search was not limited by the year of publication. STUDY SELECTION The inclusion criteria for the study selection entailed all qualitative studies conducted on breastfeeding support among self-identified African American women in the United States, written in English language, peer reviewed, or dissertation. The initial search produced 905 articles of which 8 met the eligibility criteria. DATA EXTRACTION Data extraction and analysis were guided by Noblit and Hare's (1988) meta-ethnography approach. The analysis process was completed by a team of researchers, inclusive of breastfeeding experts. RESULTS Five overarching themes emerged including trustworthy information; early postpartum support by key influencers; maternal culture; tangible resources, and Black mothers' empowerment. IMPLICATIONS FOR PRACTICE AND RESEARCH Social support is a major determinant for the initiation and continuation of breastfeeding among African American women in the United States. Future longitudinal studies are warranted to explore the social support of breastfeeding among African American women in the United States.
Collapse
Affiliation(s)
- Adwoa Gyamfi
- Correspondence: Adwoa Gyamfi, PhD, MPH, BSc, RN, University of Connecticut, School of Nursing, 231 Glenbrook Rd Unit 4026, Storrs, CT 06269 ()
| | | | | | | | | | | |
Collapse
|
7
|
Gyamfi A, Jefferson UT, O'Neill B, Lucas R, Spatz DL, Henderson WA. Disparities in 6 Month Exclusive Breastfeeding in Ghana, Africa: A Scoping Review. J Hum Lact 2022:8903344221130988. [PMID: 36305494 DOI: 10.1177/08903344221130988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Exclusive breastfeeding practice for 6 months is a critical global public health goal. In 2020, only 44% of infants globally, 31% in Central and West Africa, and 43% in Ghana, were exclusively breastfed for the first 6 months of life. RESEARCH AIM To critically evaluate disparities in exclusive breastfeeding practice for 6 months in Ghana. METHODS The scoping review was guided by Arksey and O'Malley's (2005) six-stage scoping review process. The online databases of American Psychological Association PsychInfo (APA PsychInfo), Cumulative Index to Nursing and Allied Health Literature (CINAHL), PubMed, and Scopus were searched with keywords inclusive of Ghana, exclusive breastfeeding, breastfeeding, infant feeding, lactation, lactating, and exclusive. Eligibility criteria included full-text, peer-reviewed research articles written in the English language without limitation to specific years. Data were analyzed thematically. RESULTS Initially, 317 records were identified, and 15 full-text articles were eligible for the scoping review. Four main themes emerged as disparities in exclusive breastfeeding practice in Ghana. The themes were healthcare (prenatal clinic visits, delivery place, exclusive breastfeeding knowledge), personal (maternal age, Human Immunodeficiency Virus status, parity, type of delivery, breast problem), employment (unemployed, formal, or informal sector worker), and sociocultural (ethnicity/region, family support, religious beliefs, cultural practices). CONCLUSION Disparities in exclusive breastfeeding in Ghana warrant the collaborative efforts of stakeholders for successful mitigation. Future researchers should explore the role of religion and sociocultural practices to protect, promote, and support 6 months of exclusive breastfeeding in Ghana.
Collapse
Affiliation(s)
- Adwoa Gyamfi
- St Michael's Midwifery Training School, Ashanti Region, Ghana.,School of Nursing, University of Connecticut, Storrs, CT, USA
| | | | - Barbara O'Neill
- School of Nursing, University of Connecticut, Storrs, CT, USA
| | - Ruth Lucas
- School of Nursing, University of Connecticut, Storrs, CT, USA.,School of Medicine, University of Connecticut, Farmington, CT, USA
| | - Diane Lynn Spatz
- School of Nursing, University of Pennsylvania, Philadelphia, PA, USA
| | - Wendy A Henderson
- School of Nursing, University of Connecticut, Storrs, CT, USA.,School of Medicine, University of Connecticut, Farmington, CT, USA
| |
Collapse
|
8
|
Barandouzi ZA, Lee J, del Carmen Rosas M, Chen J, Henderson WA, Starkweather AR, Cong XS. Associations of neurotransmitters and the gut microbiome with emotional distress in mixed type of irritable bowel syndrome. Sci Rep 2022; 12:1648. [PMID: 35102266 PMCID: PMC8803858 DOI: 10.1038/s41598-022-05756-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 01/12/2022] [Indexed: 02/08/2023] Open
Abstract
Evidence highlights the comorbidity between emotional distress and irritable bowel syndrome (IBS) through the gut-brain axis. However, the underlying mechanism is largely unknown. Thus, the present study aimed to evaluate the associations among neurotransmitter levels and the gut microbiome profiles in persons with IBS and emotional distress. In this nested case-controlled study, emotional symptoms, including anxiety and depressive symptoms, were evaluated in 40 persons with IBS and 20 healthy controls (HC). Plasma neurotransmitters levels (serotonin and norepinephrine) and the gut microbiome profile of the collected fecal samples were examined. Emotional distress and microbiome profile were significantly different between IBS and HC groups. Lower but not significant neurotransmitters’ levels (serotonin and norepinephrine) were observed in the IBS group compared to the HC. A negative correlation was found between norepinephrine levels and alpha diversity (Shannon and Simpson indices) in the IBS group. Moreover, serotonin levels were positively associated with the abundance of Proteobacteria, and norepinephrine were positively correlated with Bacteroidetes, but negatively associated with Firmicutes phylum. The present study demonstrated alteration in the gut microbiome between persons with IBS and emotional distress compared to HC. The correlations between plasma neurotransmitters and the gut microbiome suggest that the gut microbiome may impact the regulation of neurotransmitters.
Collapse
|
9
|
Weaver KR, Mustapic M, Kapogiannis D, Henderson WA. Neuronal-enriched extracellular vesicles in individuals with IBS: A pilot study of COMT and BDNF. Neurogastroenterol Motil 2022; 34:e14257. [PMID: 34499398 PMCID: PMC9358931 DOI: 10.1111/nmo.14257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 08/03/2021] [Accepted: 08/10/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Irritable bowel syndrome (IBS) is characterized by abdominal pain, bowel habit alterations, and psychiatric comorbidities. Although pathophysiology remains incompletely understood, prior work demonstrates associations with brain-derived neurotrophic factor (BDNF) and catechol-O-methyltransferase (COMT). The purpose of this study was to quantify BDNF and COMT in plasma and in neuronal-enriched extracellular vesicles (nEVs), assess relationships with psychological symptoms, and gain insight on the brain-gut connection in IBS. METHODS Clinical data and biorepository samples from a parent investigation were used, including scores on the Perceived Stress Scale (PSS) and Center for Epidemiological Studies Depression Scale (CES-D). Distinct subpopulations of nEVs were isolated using neural cell adhesion molecule L1CAM; levels of COMT, mature BDNF, and pro-BDNF were quantified in plasma and in nEVs using ELISA. KEY RESULTS Data from 47 females (28.11 ± 6.85 years) included 18 IBS and 29 healthy control (HC) participants. IBS participants displayed reduced plasma levels of mature BDNF compared with HC (p = 0.024). Levels of COMT plasma and IBS grouping significantly predicted CES-D scores (p = 0.034). Exploratory analyses by IBS subtype and race revealed African American HC display lower levels of COMT EV than Caucasian HC (p = 0.022). CONCLUSIONS & INFERENCES Lower levels of mature BDNF in IBS participants, preliminary patterns detected in cargo content of nEVs, and relevance of COMT and IBS status to CES-D scores, offer insight on depressive symptomatology and brain-gut dysregulation in IBS. Lower COMT levels in nEVs of African Americans highlight the relevance of race when conducting such analyses across diverse populations.
Collapse
Affiliation(s)
| | - Maja Mustapic
- National Institute of Aging, National Institutes of Health, Baltimore, MD, USA
| | | | | |
Collapse
|
10
|
Kurnat-Thoma E, Fu MR, Henderson WA, Voss JG, Hammer MJ, Williams JK, Calzone K, Conley YP, Starkweather A, Weaver MT, Shiao SPK, Coleman B. Current status and future directions of U.S. genomic nursing health care policy. Nurs Outlook 2021; 69:471-488. [PMID: 33487404 PMCID: PMC8282091 DOI: 10.1016/j.outlook.2020.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/26/2020] [Accepted: 12/11/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND As genomic science moves beyond government-academic collaborations into routine healthcare operations, nursing's holistic philosophy and evidence-based practice approach positions nurses as leaders to advance genomics and precision health care in routine patient care. PURPOSE To examine the status of and identify gaps for U.S. genomic nursing health care policy and precision health clinical practice implementation. METHODS We conducted a scoping review and policy priorities analysis to clarify key genomic policy concepts and definitions, and to examine trends and utilization of health care quality benchmarking used in precision health. FINDINGS Genomic nursing health care policy is an emerging area. Educating and training the nursing workforce to achieve full dissemination and integration of precision health into clinical practice remains an ongoing challenge. Use of health care quality measurement principles and federal benchmarking performance evaluation criteria for precision health implementation are not developed. DISCUSSION Nine recommendations were formed with calls to action across nursing practice workforce and education, nursing research, and health care policy arenas. CONCLUSIONS To advance genomic nursing health care policy, it is imperative to develop genomic performance measurement tools for clinicians, purchasers, regulators and policymakers and to adequately prepare the nursing workforce.
Collapse
Affiliation(s)
- Emma Kurnat-Thoma
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD; School of Nursing and Health Studies, Georgetown University, Washington, DC
| | - Mei R Fu
- William F. Connell School of Nursing, Boston College, Chestnut Hill, MA.
| | | | - Joachim G Voss
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, OH
| | | | | | - Kathleen Calzone
- National Cancer Institute, Center for Cancer Research, Genetics Branch, Bethesda, MD
| | | | | | | | - S Pamela K Shiao
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA
| | - Bernice Coleman
- Nursing Research and Performance Improvement, Cedars-Sinai Medical Center, Los Angeles, CA
| |
Collapse
|
11
|
Abstract
Background: Disparities in breastfeeding (BF) continue to be a public health challenge, as currently only 42% of infants in the world and 25.6% of infants in the United States are exclusively breastfed for the first 6 months of life. In 2019, the infants least likely to be exclusively breastfed at 6 months are African Americans (AA) (17.2%). Materials and Methods: A scoping review of the literature was undertaken by using Arksey and O'Malley's six-stage framework to determine key themes of AA women's experience BF through an equity lens. Electronic databases of CINAHL and PubMed were searched for peer-reviewed, full-text articles written in the English language within the past 5 years by using the terms BF, AA, Black, sociological, cultural, equity, health, attitude, exposure, initiation, continuation, barriers, and facilitators. Results: Initially, 497 articles were identified, and 26 peer-reviewed articles met the eligibility criteria. Through an equity lens, three main themes emerged, which summarized AA women's BF experience: cultural (family, peers and community support; misconceptions; personal factors), sociological (prejudices, racism, home environment; financial status; sexuality issues; BF role models; employment policies), and health dimensions (family involvement; timely and honest information from staff; baby-friendly hospital initiatives; postnatal follow-up; special supplemental nutrition program for women, infants, and children). Conclusion: For AA women, exclusively BF is beset with diverse cultural, health, and sociological challenges. Multifaceted approaches are needed for successful resolution of BF challenges to bridge the racial gap in BF in the United States. Future studies may explore interventions targeted to modifiable barriers to improve BF outcomes.
Collapse
Affiliation(s)
- Adwoa Gyamfi
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | - Barbara O'Neill
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | - Wendy A Henderson
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | - Ruth Lucas
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| |
Collapse
|
12
|
Prescott S, Dreisbach C, Baumgartel K, Koerner R, Gyamfi A, Canellas M, St Fleur A, Henderson WA, Trinchieri G. Impact of Intrapartum Antibiotic Prophylaxis on Offspring Microbiota. Front Pediatr 2021; 9:754013. [PMID: 34956974 PMCID: PMC8703107 DOI: 10.3389/fped.2021.754013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/03/2021] [Indexed: 11/13/2022] Open
Abstract
Infants are born into a world filled with microbes and must adapt without undue immune response while exploiting the microbiota's ability to produce otherwise unavailable nutrients. The process by which humans and microbes establish this relationship has only recently begun to be studied with the aid of genomic methods. Nearly half of all pregnant women receive antibiotics during gestation to prevent maternal and neonatal infection. Though this has been largely successful in reducing early-onset sepsis, we have yet to understand the long-term consequences of antibiotic administration during gestation to developing infants. Studies involving antibiotic use in infants suggest that dysbiosis during this period is associated with increased obesity, allergy, autoimmunity, and chronic diseases in adulthood, however, research around the limited doses of intravenous antibiotics used for intrapartum prophylaxis is limited. In this mini review, we focused on the state of the science regarding the effects of intrapartum antibiotic prophylaxis on the newborn microbial colonization process. Although, the literature indicates that there is wide variety in the specific bacteria that colonize infants from birth, limited parenteral antibiotic administration prior to delivery consistently affects the microbiota of infants by decreasing bacteria in the phylum Bacteroidetes and increasing bacteria in the phylum Proteobacteria, thus altering the normal pattern of colonization that infants experience. Delivery by cesarean section and formula feeding magnify and prolong this effect. Our mini review shows that the impact of intravenous antibiotic administration during gestation has on early colonization, growth, or immune programming in the developing offspring has not been well studied in human or animal models.
Collapse
Affiliation(s)
- S Prescott
- Laboratory of Integrative Immunology, Center for Cancer Research, National Institutes of Health, Bethesda, MD, United States.,College of Nursing, University of South Florida, Tampa, FL, United States
| | - C Dreisbach
- Data Science Institute, Columbia University, New York, NY, United States
| | - K Baumgartel
- College of Nursing, University of South Florida, Tampa, FL, United States
| | - R Koerner
- College of Nursing, University of South Florida, Tampa, FL, United States
| | - A Gyamfi
- School of Nursing, University of Connecticut, Storrs, CT, United States
| | - M Canellas
- College of Nursing, University of South Florida, Tampa, FL, United States
| | - A St Fleur
- College of Nursing, University of South Florida, Tampa, FL, United States
| | - W A Henderson
- School of Nursing, University of Connecticut, Storrs, CT, United States.,School of Medicine, University of Connecticut, Farmington, CT, United States
| | - G Trinchieri
- Laboratory of Integrative Immunology, Center for Cancer Research, National Institutes of Health, Bethesda, MD, United States
| |
Collapse
|
13
|
Weaver KR, Boulineaux CM, Robinson JM, Butler K, Heitkemper MM, Henderson WA. Sex Hormones, BDNF, Leptin, and TGF-β1 in Females With IBS: A Pilot Investigation. Biol Res Nurs 2020; 23:231-237. [PMID: 32806924 DOI: 10.1177/1099800420948589] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Irritable bowel syndrome (IBS) is a chronic gastrointestinal condition predominantly affecting the female sex, and is characterized by brain-gut axis dysregulation. Relevance of hormones along the hypothalamic-pituitary gonadal axis and hypothalamic-pituitary adrenal axis to IBS symptomatology remain unclear, as does the significance of other modulators including brain derived neurotrophic factor (BDNF), leptin, and transforming growth factor βeta 1 (TGF-β1). METHODS Females with IBS were compared with female healthy controls (HC) on age, race, hormonal contraceptive use, body mass index, adrenocorticotropic hormone, cortisol, estradiol, follicular stimulating hormone, luteinizing hormone, progesterone, total cholesterol, Center for Epidemiological Studies Depression Scale (CES-D) and Perceived Stress Scale (PSS). BDNF, leptin, and TGF-β1 were quantified using enzyme-linked immunosorbent assay. Descriptive statistics, non-parametric techniques, and regression analyses were performed. RESULTS Participants with IBS (n = 12) displayed higher estradiol (p = .027) than did HC (n = 21). Direction of associations among study variables often differed between groups: BDNF and progesterone in HC (rs = .623) and in IBS (rs = -.723). The relationship between log (CES-D) and log (estradiol) varied by IBS status (interaction term p = 0.019). DISCUSSION Elevated estradiol in participants with IBS, and differential patterns of biological and psychological indices between groups, encourages further inquiry on the relevance of sex hormones, BDNF, leptin, and TGF-β1 to symptoms of IBS. Future research endeavors should conduct longitudinal quantification of sex hormones with subjective symptom assessment to facilitate insight on the pathophysiology and female sex bias in IBS.
Collapse
Affiliation(s)
- Kristen R Weaver
- 12265University of Maryland, School of Nursing, Baltimore, MD, USA.,National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| | | | - Jeffrey M Robinson
- Translational Life Science Technology Program, 205813UMBC at The Universities of Shady Grove, Rockville, MD, USA
| | - Kierra Butler
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| | - Margaret M Heitkemper
- Department of Biobehavioral Nursing and Health Informatics, 7284University of Washington, School of Nursing, Seattle, WA, USA
| | - Wendy A Henderson
- Center of Nursing Scholarship and Innovation, 7712University of Connecticut, School of Nursing, Storrs, CT, USA
| |
Collapse
|
14
|
Diallo AF, Lockwood MB, Maki KA, Franks AT, Roy A, Jaime-Lara R, Joseph PV, Henderson WA, Chung SY, McGrath J, Green SJ, Fink AM. Metabolic Profiling of Blood and Urine for Exploring the Functional Role of the Microbiota in Human Health. Biol Res Nurs 2020; 22:449-457. [PMID: 32723087 DOI: 10.1177/1099800420941080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The quantification of metabolites in blood and urine allows nurses to explore new hypotheses about the microbiome. This review summarizes findings from recent studies with a focus on how the state of the science can influence future nursing research initiatives. Metabolomics can advance nursing research by identifying physiologic/pathophysiologic processes underlying patients' symptoms and can be useful for testing the effects of nursing interventions. To date, metabolomics has been used to study cardiovascular, respiratory, endocrine, autoimmune, and infectious conditions, with research focused on understanding the microbial metabolism of substrates resulting in circulating/excreted biomarkers such as trimethylamine N-oxide. This review provides specific recommendations for the collection of specimens and goals for future studies.
Collapse
Affiliation(s)
- Ana F Diallo
- Institute of Inclusion, Inquiry & Innovation (iCubed), Family and Community Health Nursing, School of Nursing, Virginia Commonwealth University, Richmond, VA, USA
| | - Mark B Lockwood
- Department of Biobehavioral Health Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
| | - Katherine A Maki
- Department of Biobehavioral Health Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
| | - Alexis T Franks
- Sensory Science & Metabolism Unit, Biobehavioral Branch, Division of Intramural Research, 2511National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Abhrarup Roy
- Sensory Science & Metabolism Unit, Biobehavioral Branch, Division of Intramural Research, 2511National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Rosario Jaime-Lara
- Sensory Science & Metabolism Unit, Biobehavioral Branch, Division of Intramural Research, 2511National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Paule V Joseph
- Sensory Science & Metabolism Unit, Biobehavioral Branch, Division of Intramural Research, 2511National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Wendy A Henderson
- Digestive Disorders Unit, Biobehavioral Branch, Division of Intramural Research, 2511National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Seon Yoon Chung
- School of Nursing, University of Maryland, Baltimore, MD, USA
| | - Jacqueline McGrath
- School of Nursing, University of Texas Health Science Center, San Antonio, TX, USA
| | - Stefan J Green
- Sequencing Core, Research Resources Center, 14681University of Illinois at Chicago, Chicago, IL, USA
| | - Anne M Fink
- Department of Biobehavioral Health Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
| |
Collapse
|
15
|
González-Mercado VJ, Henderson WA, Sarkar A, Lim J, Saligan LN, Berk L, Dishaw L, McMillan S, Groer M, Sepehri F, Melkus GD. Changes in Gut Microbiome Associated With Co-Occurring Symptoms Development During Chemo-Radiation for Rectal Cancer: A Proof of Concept Study. Biol Res Nurs 2020; 23:31-41. [PMID: 32700552 DOI: 10.1177/1099800420942830] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE To examine a) whether there are significant differences in the severity of symptoms of fatigue, sleep disturbance, or depression between patients with rectal cancer who develop co-occurring symptoms and those with no symptoms before and at the end of chemotherapy and radiation therapy (CRT); b) differences in gut microbial diversity between those with co-occurring symptoms and those with no symptoms; and c) whether before-treatment diversity measurements and taxa abundances can predict co-occurrence of symptoms. METHODS Stool samples and symptom ratings were collected from 31 patients with rectal cancer prior to and at the end of (24-28 treatments) CRT. Descriptive statistics were computed and the Mann-Whitney U test was performed for symptoms. Gut microbiome data were analyzed using R's vegan package software. RESULTS Participants with co-occurring symptoms reported greater severity of fatigue at the end of CRT than those with no symptoms. Bacteroides and Blautia2 abundances differed between participants with co-occurring symptoms and those with no symptoms. Our random forest classification (unsupervised learning algorithm) predicted participants who developed co-occurring symptoms with 74% accuracy, using specific phylum, family, and genera abundances as predictors. CONCLUSION Our preliminary results point to an association between the gut microbiota and co-occurring symptoms in rectal cancer patients and serves as a first step in potential identification of a microbiota-based classifier.
Collapse
Affiliation(s)
- Velda J González-Mercado
- NYU Rory Meyers College of Nursing, New York, NY, USA.,College of Nursing, 7831University of South Florida, Tampa, FL, USA
| | | | - Anujit Sarkar
- College of Nursing and College of Public Health, 7831University of South Florida, Tampa, FL, USA
| | - Jean Lim
- 96722Rosenstiel School of Marine and Atmosphereic Science, University of Miami, FL, USA
| | - Leorey N Saligan
- Symptom Science Center, Symptom Biology Unit, Division of Intramural Research, NINR, NIH, DHHS, Bethesda, MD, USA
| | - Lawrence Berk
- College of Medicine Radiology, 7831University of South Florida, Tampa, FL, USA
| | - Larry Dishaw
- Department of Pediatrics, Molecular Genetics Children's Research Institute, 7831University of South Florida, St. Petersburg, FL, USA
| | - Susan McMillan
- College of Nursing, 7831University of South Florida, Tampa, FL, USA
| | - Maureen Groer
- College of Nursing, 7831University of South Florida, Tampa, FL, USA
| | - Farrah Sepehri
- College of Nursing, 7831University of South Florida, Tampa, FL, USA
| | | |
Collapse
|
16
|
Abstract
BACKGROUND Psychological state, stress level, and gastrointestinal function are intricately related and relevant to symptom exacerbation in patients with irritable bowel syndrome (IBS), but genetic contributors to this brain-gut connection are not fully understood. The purpose of this exploratory study was to compare gene expression in participants with IBS to that of healthy controls (HC) and to examine patterns of expression in participants with IBS by sex and IBS subtype. METHOD Participants were recruited to an ongoing protocol at the National Institutes of Health. Differences in demographic and clinical characteristics were assessed using descriptive statistics and Mann-Whitney U tests. Expression levels of 84 genes were evaluated in peripheral whole blood using Custom RT2 Profiler polymerase chain reaction (PCR) Arrays, and data analysis was performed through GeneGlobe Data Analysis Center. RESULTS Participants with IBS (n = 27) reported greater levels of perceived stress (p = .037) and differed in expression values of ±2 for the genes ADIPOR1, ADIPOR2, CNR2, COMT, OXTR, and PPARA compared to HC (n = 43). Further analyses by sex and IBS subtype revealed differential patterns of gene expression related to the endocannabinoid system, cytokines, stress, and sex steroid hormones. CONCLUSIONS Diverse yet interconnected processes such as metabolism, inflammation, immunity, social behavior, and pain are associated with differences in gene expression between participants with IBS and HC. These findings lend support for genomic associations with the brain-gut connection in patients with IBS and highlight the relevance of sex and IBS subtype in performing such analyses.
Collapse
Affiliation(s)
- Kristen R. Weaver
- Department of Pain and Translational Symptom Science, University of Maryland
School of Nursing, Baltimore, MD, USA
- National Institute of Nursing Research, National Institutes of Health,
Bethesda, MD, USA
| | | | - Jason Fletcher
- Rory Meyers College of Nursing, New York University, NY, USA
| | - Wendy A. Henderson
- Digestive Disorders Unit, Division of Intramural Research, National
Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| |
Collapse
|
17
|
Barandouzi ZA, Starkweather AR, Henderson WA, Gyamfi A, Cong XS. Altered Composition of Gut Microbiota in Depression: A Systematic Review. Front Psychiatry 2020; 11:541. [PMID: 32587537 PMCID: PMC7299157 DOI: 10.3389/fpsyt.2020.00541] [Citation(s) in RCA: 198] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/27/2020] [Indexed: 12/20/2022] Open
Abstract
Cumulative evidence shows a linkage between gut microbiota pattern and depression through the brain-gut microbiome axis. The aim of this systematic review was to identify the alterations of the gut microbiota patterns in people with depression compared to healthy controls. A comprehensive literature search of human studies, published between January 2000 and June 2019, was reviewed. The key words included gastrointestinal microbiome, gut microbiome, microbiota, depression, depressive symptoms, and depressive disorder. The systematic review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. Nine articles met the eligibility criteria. Disparities in α-diversity and β-diversity of the microbiota existed in people with depression compared to healthy controls. At the phylum level, there were inconsistencies in the abundance of Firmicutes, Bacteroidetes, and Proteobacteria. However, high abundance in Actinobacteria and Fusobacteria phyla were observed in people with depression. On the family level, high abundance of Actinomycineae, Coriobacterineae, Bifidobacteriaceae, Clostridiales incertae sedis XI, Porphyromonadaceae, Clostridiaceae, Lactobacillaceae, Streptococcaceae, Eubacteriaceae, Thermoanaerobacteriaceae, Fusobacteriaceae, Nocardiaceae, Streptomycetaceae, and low abundance of Veillonellaceae, Prevotellaceae, Bacteroidaceae, Sutterellaceae, Oscillospiraceae, Marniabilaceae, and Chitinophagaceae were observed in people with depression. On the genus level, high abundance of Oscillibacter, Blautia, Holdemania, Clostridium XIX, Anaerostipes, Anaerofilum, Streptococcus, Gelria, Turicibacter, Parabacteroides, Eggerthella, Klebsiella, Paraprevotella, Veillonella, Clostridium IV, Erysipelotrichaceae incertae sedis, Eubacterium, Parvimonas, Desulfovibrio, Parasutterella, Actinomyces, Asaccharobacter, Atopobium, Olsenella and low abundance of Coprococcus, Lactobacillus, Escherichia/Shigella, Clostridium XlVa, Dialister, Howardella, Pyramidobacter, and Sutterella were found in people with depression. Alteration of gut microbiome patterns was evident in people with depression. Further evidence is warranted to allow for the translation of microbiome findings toward innovative clinical strategies that may improve treatment outcomes in people with depression.
Collapse
Affiliation(s)
- Zahra Amirkhanzadeh Barandouzi
- School of Nursing, University of Connecticut, Storrs, CT, United States.,Center for Advancement in Managing Pain, School of Nursing, University of Connecticut, Storrs, CT, United States
| | - Angela R Starkweather
- School of Nursing, University of Connecticut, Storrs, CT, United States.,Center for Advancement in Managing Pain, School of Nursing, University of Connecticut, Storrs, CT, United States
| | - Wendy A Henderson
- School of Nursing, University of Connecticut, Storrs, CT, United States.,Center for Advancement in Managing Pain, School of Nursing, University of Connecticut, Storrs, CT, United States
| | - Adwoa Gyamfi
- School of Nursing, University of Connecticut, Storrs, CT, United States
| | - Xiaomei S Cong
- School of Nursing, University of Connecticut, Storrs, CT, United States.,Center for Advancement in Managing Pain, School of Nursing, University of Connecticut, Storrs, CT, United States
| |
Collapse
|
18
|
Fu MR, Kurnat-Thoma E, Starkweather A, Henderson WA, Cashion AK, Williams JK, Katapodi MC, Reuter-Rice K, Hickey KT, Barcelona de Mendoza V, Calzone K, Conley YP, Anderson CM, Lyon DE, Weaver MT, Shiao PK, Constantino RE, Wung SF, Hammer MJ, Voss JG, Coleman B. Precision health: A nursing perspective. Int J Nurs Sci 2019; 7:5-12. [PMID: 32099853 PMCID: PMC7031154 DOI: 10.1016/j.ijnss.2019.12.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/03/2019] [Accepted: 12/16/2019] [Indexed: 12/12/2022] Open
Abstract
Precision health refers to personalized healthcare based on a person’s unique genetic, genomic, or omic composition within the context of lifestyle, social, economic, cultural and environmental influences to help individuals achieve well-being and optimal health. Precision health utilizes big data sets that combine omics (i.e. genomic sequence, protein, metabolite, and microbiome information) with clinical information and health outcomes to optimize disease diagnosis, treatment and prevention specific to each patient. Successful implementation of precision health requires interprofessional collaboration, community outreach efforts, and coordination of care, a mission that nurses are well-positioned to lead. Despite the surge of interest and attention to precision health, most nurses are not well-versed in precision health or its implications for the nursing profession. Based on a critical analysis of literature and expert opinions, this paper provides an overview of precision health and the importance of engaging the nursing profession for its implementation. Other topics reviewed in this paper include big data and omics, information science, integration of family health history in precision health, and nursing omics research in symptom science. The paper concludes with recommendations for nurse leaders in research, education, clinical practice, nursing administration and policy settings for which to develop strategic plans to implement precision health.
Collapse
Affiliation(s)
- Mei R. Fu
- William F. Connell School of Nursing, Boston College, Chestnut Hill, MA, USA
- Corresponding author. Barry Family & Goldman Sachs Endowed Professor, William F. Connell School of Nursing, Boston College, Office 228 Maloney Hall, 140 Commonwealth Avenue, Chestnut Hill, MA, 02467, USA.
| | - Emma Kurnat-Thoma
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
- School of Nursing and Health Studies, Georgetown University, Washington, DC, USA
| | | | | | - Ann K. Cashion
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| | | | | | | | | | | | - Kathleen Calzone
- National Cancer Institute, Center for Cancer Research, Genetic Branch, Bethesda, MD, USA
| | - Yvette P. Conley
- School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA
| | | | | | | | - Pamela K. Shiao
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | | | - Shu-Fen Wung
- College of Nursing The University of Arizona, Tucson, AZ, USA
| | - Marilyn J. Hammer
- Dana-Farber Cancer Institute, 450 Brookline Avenue, LW523, Boston, MA, USA
| | - Joachim G. Voss
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, OH, USA
| | - Bernice Coleman
- Nursing Research and Development, Cedars-Sinai Medical Center, Los Angeles, USA
| |
Collapse
|
19
|
Diallo AF, McGlothen-Bell K, Lucas R, Walsh S, Allen C, Henderson WA, Cong X, McGrath J. Feeding modes, duration, and diarrhea in infancy: Continued evidence of the protective effects of breastfeeding. Public Health Nurs 2019; 37:155-160. [PMID: 31709650 DOI: 10.1111/phn.12683] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To evaluate the effect of early breastfeeding cessation on incidence of diarrhea in a cohort of U.S. infants. DESIGN, SAMPLE, AND MEASUREMENTS A secondary data analysis was conducted using data from 2,340 mother-infant dyads participating in the Infant Feeding Practices Study II. We examined associations between duration of feeding type (e.g., exclusive breastfeeding [EBF], any breastfeeding [BF], formula feeding) and incidence of diarrhea before one year. RESULTS The sample included mother-infant dyads that were 86.2% White, 3% Black, and 5% Hispanic. Interruption of EBF before 3 months was significantly associated with higher odds of having diarrhea at 6 months (OR = 1.80, p value ≤ 0.01) and between 6 and 12 months (OR = 1.45, p ≤ .01). Breastfeeding interruption before 6 months was associated with higher odds of having diarrhea at 6 months (OR = 3.19, p ≤ .01). Formula feeding for ≥3 months was associated with higher odds of diarrhea between 6 and 12 months. CONCLUSIONS Exclusive breastfeeding for 3 months accompanied by any breastfeeding for 6 months provided the most protective effect against diarrhea. Public health interventions should address disparities in breastfeeding practices and provide support across clinical, workplace and community settings. Research should include more diverse population groups.
Collapse
Affiliation(s)
- Ana F Diallo
- Family and Community Health Nursing, Institute of Inclusion, Inquiry & Innovation (iCubed), Virginia Commonwealth University School of Nursing, Richmond, VA, USA
| | - Kelly McGlothen-Bell
- School of Nursing, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Ruth Lucas
- Tenure Track, School of Nursing, University of Connecticut, Storrs, CT, USA
| | - Stephen Walsh
- Dual Appointment, School of Medicine, Department of Community Medicine & Health Care, School of Nursing, University of Connecticut, Storrs, CT, USA
| | - Carolyn Allen
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| | | | - Xiaomei Cong
- Center for Advancement in Managing Pain, School of Nursing, University of Connecticut, Storrs, CT, USA
| | - Jacqueline McGrath
- School of Nursing, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| |
Collapse
|
20
|
Robinson JM, Turkington S, Abey SA, Kenea N, Henderson WA. Differential gene expression and gene-set enrichment analysis in Caco-2 monolayers during a 30-day timeline with Dexamethasone exposure. Tissue Barriers 2019; 7:e1651597. [PMID: 31438773 PMCID: PMC6748367 DOI: 10.1080/21688370.2019.1651597] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Glucocorticoid hormones affect gene expression via activation of glucocorticoid receptor NR3C1, causing modulation of inflammation and autoimmune activation. The glucocorticoid Dexamethasone is an important pharmaceutical for the treatment of colitis and other inflammatory bowel diseases. While suppressive effects of glucocorticoids on activated immune cells is significant, their effects upon epithelial cells are less well studied. Previous research shows that the effects of Dexamethasone treatment on polarized Caco-2 cell layer permeability is delayed for >10 treatment days (as measured by transepithelial electrical resistance). In vivo intestinal epithelial cells turn over every 3–5 days; we therefore hypothesized that culture age may produce marked effects on gene expression, potentially acting as a confounding variable. To investigate this issue, we cultured polarized Caco-2 monolayers during a 30-day timecourse with ~15 days of continuous Dexamethasone exposure. We collected samples during the timecourse and tested differential expression using a 250-plex gene expression panel and Nanostring nCounter® system. Our custom panel was selectively enriched for KEGG annotations for tight-junction, actin cytoskeleton regulation, and colorectal cancer-associated genes, allowing for focused gene ontology-based pathway enrichment analyses. To test for confounding effects of time and Dexamethasone variables, we used the Nanostring nSolver differential expression data model which includes a mixturenegative binomial modelwith optimization. We identified a time-associated “EMT-like” signature with differential expression seen in important actomyosin cytoskeleton, tight junction, integrin, and cell cycle pathway genes. Dexamethasone treatment resulted in a subtle yet significant counter-signal showing suppression of actomyosin genes and differential expression of various growth factor receptors.
Collapse
Affiliation(s)
- J M Robinson
- Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research (NINR), NIH, DHHS , Bethesda , MD , USA
| | - S Turkington
- Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research (NINR), NIH, DHHS , Bethesda , MD , USA
| | - S A Abey
- Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research (NINR), NIH, DHHS , Bethesda , MD , USA
| | - N Kenea
- Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research (NINR), NIH, DHHS , Bethesda , MD , USA
| | - W A Henderson
- Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research (NINR), NIH, DHHS , Bethesda , MD , USA
| |
Collapse
|
21
|
Henderson WA, Xiang L, Fourie NH, Abey SK, Ferguson EG, Diallo AF, Kenea ND, Kim CH. Simple lateral flow assays for microbial detection in stool. Anal Methods 2018; 10:5358-5363. [PMID: 31241058 PMCID: PMC6253687 DOI: 10.1039/c8ay01475b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 08/30/2018] [Indexed: 06/09/2023]
Abstract
Diarrheal diseases claim the lives of 1300 children daily, mostly in the developing world. We have developed a simple lateral flow assay capable of detecting E. coli and EPEC DNA and RNA rapidly (<15 minutes) at the point-of-need, directly from stool without nucleic acid extraction or molecular amplification. The limit of detection of the method is 1 nM using synthetic DNA target substrates spiked into stool. However, due to the endogenous amplification of the 23S rRNA targets, we were able to detect the endogenous EPEC in pea-sized (5 mg) stool without labor-intensive and time-consuming nucleic acid purification or target amplification using enzymes. The significance of this method is that it is rapid (<15 minutes) and simple (without nucleic acid purification or molecular amplification) and does not require instrumentation, or access to a laboratory, cold chain or electric power. Thus, it is well-suited for point-of-need use in remote and/or resource-limited settings in the developing world where the mortality due to diarrheal diseases is especially high. The rapid testing of stool pathogens in real time at the point-of-need will decrease the loss of patients to follow-up, and enable patients to be treated earlier with the appropriate therapeutics in both the developed and developing world settings.
Collapse
Affiliation(s)
- Wendy A Henderson
- Division of Intramural Research , National Institute of Nursing Research , National Institutes of Health , Department of Health and Human Services , Bethesda , MD 20892 , USA .
| | - Lichen Xiang
- Division of Intramural Research , National Institute of Nursing Research , National Institutes of Health , Department of Health and Human Services , Bethesda , MD 20892 , USA .
- GoDx , 510 Charmany Drive, Suite 257 , Madison , WI 53719 , USA .
| | - Nicolaas H Fourie
- Division of Intramural Research , National Institute of Nursing Research , National Institutes of Health , Department of Health and Human Services , Bethesda , MD 20892 , USA .
| | - Sarah K Abey
- Division of Intramural Research , National Institute of Nursing Research , National Institutes of Health , Department of Health and Human Services , Bethesda , MD 20892 , USA .
| | - Eric G Ferguson
- Division of Intramural Research , National Institute of Nursing Research , National Institutes of Health , Department of Health and Human Services , Bethesda , MD 20892 , USA .
| | - Ana F Diallo
- Division of Intramural Research , National Institute of Nursing Research , National Institutes of Health , Department of Health and Human Services , Bethesda , MD 20892 , USA .
| | - Natnael D Kenea
- Division of Intramural Research , National Institute of Nursing Research , National Institutes of Health , Department of Health and Human Services , Bethesda , MD 20892 , USA .
| | - Chang Hee Kim
- GoDx , 510 Charmany Drive, Suite 257 , Madison , WI 53719 , USA .
| |
Collapse
|
22
|
Alao H, Cam M, Keembiyehetty C, Zhang F, Serti E, Suarez D, Park H, Fourie NH, Wright EC, Henderson WA, Li Q, Liang TJ, Rehermann B, Ghany MG. Baseline Intrahepatic and Peripheral Innate Immunity are Associated with Hepatitis C Virus Clearance During Direct-Acting Antiviral Therapy. Hepatology 2018; 68:2078-2088. [PMID: 29704252 PMCID: PMC6204120 DOI: 10.1002/hep.29921] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 04/02/2018] [Indexed: 12/21/2022]
Abstract
Hepatitis C virus (HCV) infection induces interferon (IFN)-stimulated genes (ISGs) and downstream innate immune responses. This study investigated whether baseline and on-treatment differences in these responses predict response versus virological breakthrough during therapy with direct-acting antivirals (DAAs). Thirteen HCV genotype 1b-infected patients who had previously failed a course of pegylated IFN/ribavirin were retreated with asunaprevir/daclatasvir for 24 weeks. After pretreatment biopsy, patients were randomized to undergo a second biopsy at week 2 or 4 on therapy. Microarray and NanoString analyses were performed on paired liver biopsies and analyzed using linear mixed models. As biomarkers for peripheral IFN responses, peripheral blood natural killer cells were assessed for phosphorylated signal transducer and activator of transcription 1 (pSTAT1) and tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) expression and degranulation. Nine of 13 (69%) patients achieved sustained virological response at 12 weeks off therapy (SVR12), and 4 experienced virological breakthroughs between weeks 4 and 12. Patients who achieved SVR12 displayed higher ISG expression levels in baseline liver biopsies and a higher frequency of pSTAT1 and TRAIL-expressing, degranulating natural killer cells in baseline blood samples than those who experienced virological breakthrough. Comparing gene expression levels from baseline and on-therapy biopsies, 408 genes (±1.2-fold, P < 0.01) were differentially expressed. Genes down-regulated on treatment were predominantly ISGs. Down-regulation of ISGs was rapid and correlated with HCV RNA suppression. Conclusion: An enhanced IFN signature is observed at baseline in liver and blood of patients who achieve SVR12 compared to those who experience a virological breakthrough; the findings suggest that innate immunity may contribute to clearance of HCV during DAA therapy by preventing the emergence of resistance-associated substitutions that lead to viral breakthrough during DAA therapy.
Collapse
Affiliation(s)
- Hawwa Alao
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Maggie Cam
- Office of Science and Technology Resources, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Chithra Keembiyehetty
- Genomic Core facility, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Fang Zhang
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Elisavet Serti
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Daniel Suarez
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Heiyoung Park
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Nicolaas H. Fourie
- Digestive Disorder Unit, National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland
| | - Elizabeth C. Wright
- Office of the Director, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Wendy A. Henderson
- Digestive Disorder Unit, National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland
| | - Qisheng Li
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - T. Jake Liang
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Barbara Rehermann
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Marc G. Ghany
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| |
Collapse
|
23
|
Joseph PV, Davidson HR, Boulineaux CM, Fourie NH, Franks AT, Abey SK, Henderson WA. Eating Behavior, Stress, and Adiposity: Discordance Between Perception and Physiology. Biol Res Nurs 2018; 20:531-540. [PMID: 29852756 DOI: 10.1177/1099800418779460] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The purpose of the study was to examine the interrelationships among stress, eating behavior, and adiposity in a cohort of normal- and overweight individuals. Clinical markers of physiological stress (fasting serum cortisol) and adiposity (body mass index [BMI] and percent body fat) were obtained from participants selected for a natural history protocol ( n = 107). Self-reported data on eating behavior (using the Three-Factor Eating Questionnaire subscales such as Cognitive Restraint, Disinhibition, and Hunger) and psychological stress (via the Perceived Stress Scale) were evaluated. Demographic information was incorporated using principal component analysis, which revealed sex- and weight-based differences in stress, adiposity, and eating behavior measures. Following a cross-sectional and descriptive analysis, significant correlations were found between the Disinhibition and Hunger eating behavior subscales and measures of adiposity including BMI ( r = .30, p = .002 and r = .20, p = .036, respectively) and percent body fat ( r = .43, p = .000 and r = .22, p = .022, respectively). Relationships between stress measures and eating behavior were also evident in the analysis. Disinhibition and Hunger correlated positively with perceived stress ( r = .32, p .001 and r = .26, p = .008, respectively). However, Disinhibition varied inversely with serum cortisol levels ( r = -.25, p = .009). Future studies are warranted to better understand this paradox underlying the effects of perceived and physiological stress on eating behavior.
Collapse
Affiliation(s)
- Paule V Joseph
- 1 Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services (DHHS), National Institute of Nursing Research (NINR), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Hannah R Davidson
- 1 Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services (DHHS), National Institute of Nursing Research (NINR), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Christina M Boulineaux
- 2 Digestive Disorders Unit, Division of Intramural Research, Department of Health and Human Services (DHHS), National Institute of Nursing Research (NINR), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Nicolaas H Fourie
- 2 Digestive Disorders Unit, Division of Intramural Research, Department of Health and Human Services (DHHS), National Institute of Nursing Research (NINR), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Alexis T Franks
- 1 Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services (DHHS), National Institute of Nursing Research (NINR), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Sarah K Abey
- 2 Digestive Disorders Unit, Division of Intramural Research, Department of Health and Human Services (DHHS), National Institute of Nursing Research (NINR), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Wendy A Henderson
- 2 Digestive Disorders Unit, Division of Intramural Research, Department of Health and Human Services (DHHS), National Institute of Nursing Research (NINR), National Institutes of Health (NIH), Bethesda, MD, USA
| |
Collapse
|
24
|
Joseph PV, Wang Y, Fourie NH, Henderson WA. A computational framework for predicting obesity risk based on optimizing and integrating genetic risk score and gene expression profiles. PLoS One 2018; 13:e0197843. [PMID: 29795655 PMCID: PMC5993110 DOI: 10.1371/journal.pone.0197843] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 05/09/2018] [Indexed: 01/07/2023] Open
Abstract
Recent large-scale genome-wide association studies have identified tens of genetic loci robustly associated with Body Mass Index (BMI). Gene expression profiles were also found to be associated with BMI. However, accurate prediction of obesity risk utilizing genetic data remains challenging. In a cohort of 75 individuals, we integrated 27 BMI-associated SNPs and obesity-associated gene expression profiles. Genetic risk score was computed by adding BMI-increasing alleles. The genetic risk score was significantly correlated with BMI when an optimization algorithm was used that excluded some SNPs. Linear regression and support vector machine models were built to predict obesity risk using gene expression profiles and the genetic risk score. An adjusted R2 of 0.556 and accuracy of 76% was achieved for the linear regression and support vector machine models, respectively. In this paper, we report a new mathematical method to predict obesity genetic risk. We constructed obesity prediction models based on genetic information for a small cohort. Our computational framework serves as an example for using genetic information to predict obesity risk for specific cohorts.
Collapse
Affiliation(s)
- Paule V. Joseph
- Division of Intramural Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Yupeng Wang
- Phronetik Inc., Plano, Texas, United States of America
| | - Nicolaas H. Fourie
- Division of Intramural Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Wendy A. Henderson
- Division of Intramural Research, National Institutes of Health, Bethesda, Maryland, United States of America
| |
Collapse
|
25
|
Weaver KR, Melkus GD, Fletcher J, Henderson WA. Perceived Stress, Its Physiological Correlates, and Quality of Life in Patients With Irritable Bowel Syndrome. Biol Res Nurs 2018; 20:312-320. [PMID: 29402137 PMCID: PMC5993079 DOI: 10.1177/1099800418756733] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Irritable bowel syndrome (IBS) is a chronic, common disorder of the gastrointestinal tract associated with high psychological comorbidity and diminished quality of life. Patients with IBS display a heightened sensitivity to stress, although the literature is inconsistent as to whether they have a dysregulated stress response. The purpose of the present investigation, a substudy of a larger research effort, was to examine physiological correlates of perceived stress in patients with IBS (cortisol and adrenocorticotropic hormone) and to explore associations between perceived stress and quality of life. A total of 101 participants (35 with IBS [predominant subtypes IBS-constipation and IBS-diarrhea] and 66 healthy controls [HCs]) completed self-report inventories regarding perceived stress and quality of life, and fasting peripheral blood was drawn. Participants with IBS did not differ from the HC in demographic or physiological measures but did differ in psychological measures, reporting significantly higher levels of perceived stress and lower levels of quality of life. Perceived stress and quality of life were not significantly associated in IBS participants. However, differential findings of the stress response were found within IBS participants by sex, race, and subtype. These findings illustrate the heterogeneity of the IBS patient population, underscore the necessity of evaluating larger sample sizes and increasing the diversity of such samples to include males and ethnic minorities, and demonstrate the importance of taking an individualized approach to evaluation and treatment in the IBS patient population.
Collapse
Affiliation(s)
- Kristen R. Weaver
- Johns Hopkins University, Baltimore, MD, USA
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
- Rory Meyers College of Nursing, New York University, New York, NY, USA
| | | | - Jason Fletcher
- Rory Meyers College of Nursing, New York University, New York, NY, USA
| | - Wendy A. Henderson
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA
| |
Collapse
|
26
|
Sherwin LB, Leary E, Henderson WA. Effect of Illness Representations and Catastrophizing on Quality of Life in Adults With Irritable Bowel Syndrome. J Psychosoc Nurs Ment Health Serv 2018; 54:44-53. [PMID: 27576228 DOI: 10.3928/02793695-20160803-01] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 07/25/2016] [Indexed: 12/13/2022]
Abstract
There is limited understanding of the influence of psychosocial factors on irritable bowel syndrome (IBS), which contributes to management difficulties and ineffective long-term treatment. The goal of the current study was to assess the effect illness representations and coping had on health-related quality of life (HRQOL) in adults with IBS. Self-report data were collected from 101 adults with IBS. Illness representations were measured with the Revised Illness Perception Questionnaire; catastrophizing was measured with the catastrophizing subscale of the Coping Strategies Questionnaire; and HRQOL was measured using the IBS-Quality of Life Measure. Participants perceived their IBS to be a chronic, cyclical condition with negative consequences, moderate symptomatology, and strong negative emotional impact. Their quality of life was poor and catastrophic thinking was noted to be used. Therefore, integrating illness beliefs and coping style into the management of IBS may improve well-being and minimize suffering. [Journal of Psychosocial Nursing and Mental Health Services, 54(9), 44-53.].
Collapse
|
27
|
Affiliation(s)
- Wendy A Henderson
- 1 Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Gia Mudd-Martin
- 2 College of Nursing, University of Kentucky, Lexington, KY, USA
| |
Collapse
|
28
|
Sherwin LB, Ozoji OM, Boulineaux CM, Joseph PV, Fourie NH, Abey SK, Zhang X, Henderson WA. Gender and Weight Influence Quality of Life in Irritable Bowel Syndrome. J Clin Med 2017; 6:jcm6110103. [PMID: 29104254 PMCID: PMC5704120 DOI: 10.3390/jcm6110103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/20/2017] [Accepted: 10/27/2017] [Indexed: 12/12/2022] Open
Abstract
Irritable bowel syndrome (IBS) is a common gastrointestinal disorder characterized by abdominal pain and bowel dysfunction in the absence of structural abnormality. Diagnosis can be challenging and often leads to extensive medical tests, non-effective therapeutic modalities, and reduced quality of life (QOL). Identifying factors associated with dysfunction have the potential to enhance outcomes. Participants with IBS (n = 41) and healthy volunteers (n = 74) were recruited into this cross-sectional, descriptive, natural history protocol at the National Institute of Health, Clinical Center. Demographic characteristics were self-reported. QOL was assessed with the Irritable Bowel Syndrome Quality of Life (IBS-QOL) questionnaire. Statistical analysis included descriptive statistics, factorial ANOVA, and multiple regression. Individuals with IBS reported lower QOL scores across all QOL-subscales compared to healthy controls. Normal-weight women and overweight men with IBS reported the greatest QOL impairment. Body fat percent had confounding effects on the relationship between IBS and QOL. The disparity between QOL scores in participants with IBS by both gender and weight groups may reflect different social pressures perceived by normal and overweight women and men. These findings enhance the recognition of the disparities in patients with chronic symptoms and thereby lead to personalized assessment and interventions to improve their QOL.
Collapse
Affiliation(s)
- LeeAnne B Sherwin
- Sinclair School of Nursing, University of Missouri-Columbia, Columbia, MO 65211, USA.
- Digestive Disorders Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, USA.
| | - Onyinyechi M Ozoji
- Digestive Disorders Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, USA.
| | - Christina M Boulineaux
- Digestive Disorders Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, USA.
| | - Paule V Joseph
- Digestive Disorders Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, USA.
| | - Nicolaas H Fourie
- Digestive Disorders Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, USA.
| | - Sarah K Abey
- School of Nursing & Health Studies, Georgetown University, Washington, DC 20007, USA.
| | - Xuemin Zhang
- Digestive Disorders Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, USA.
| | - Wendy A Henderson
- Digestive Disorders Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, USA.
| |
Collapse
|
29
|
Abstract
Nutrition is a factor involved in inflammation and a modulator of risk toward some cancers, and the complexity of linkages between dietary components and epigenetics mechanisms (e.g., DNA methylation, histone modification, chromatin remodeling) may affect the inflammation phenotype and the development of cancer. An increasing number of studies support the role of diet in cancer development, prevention, and treatment. Although current knowledge regarding nutri-epigenetics is expanding, more work is needed, and nurse scientists have the potential to significantly contribute to the expansion of this knowledge.
Collapse
|
30
|
Cong X, Wu J, Vittner D, Xu W, Hussain N, Galvin S, Fitzsimons M, McGrath JM, Henderson WA. The impact of cumulative pain/stress on neurobehavioral development of preterm infants in the NICU. Early Hum Dev 2017; 108:9-16. [PMID: 28343092 PMCID: PMC5444300 DOI: 10.1016/j.earlhumdev.2017.03.003] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 03/01/2017] [Accepted: 03/13/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Vulnerable preterm infants experience repeated and prolonged pain/stress stimulation during a critical period in their development while in the neonatal intensive care unit (NICU). The contribution of cumulative pain/stressors to altered neurodevelopment remains unclear. The study purpose was to investigate the impact of early life painful/stressful experiences on neurobehavioral outcomes of preterm infants in the NICU. METHODS A prospective exploratory study was conducted with fifty preterm infants (28 0/7-32 6/7weeks gestational age) recruited at birth and followed for four weeks. Cumulative pain/stressors (NICU Infant Stressor Scale) were measured daily and neurodevelopmental outcomes (NICU Network Neurobehavioral Scale) were examined at 36-37weeks post-menstrual age. Data analyses were conducted on the distribution of pain/stressors experienced over time and the linkages among pain/stressors and neurobehavioral outcomes. RESULTS Preterm infants experienced a high degree of pain/stressors in the NICU, both in numbers of daily acute events (22.97±2.30 procedures) and cumulative times of chronic/stressful exposure (42.59±15.02h). Both acute and chronic pain/stress experienced during early life significantly contributed to the neurobehavioral outcomes, particularly in stress/abstinence (p<0.05) and habituation responses (p<0.01), meanwhile, direct breastfeeding and skin-to-skin holding were also significantly associated with habituation (p<0.01-0.05). CONCLUSION Understanding mechanisms by which early life experience alters neurodevelopment will assist clinicians in developing targeted neuroprotective strategies and individualized interventions to improve infant developmental outcomes.
Collapse
Affiliation(s)
- Xiaomei Cong
- School of Nursing, University of Connecticut, Storrs, CT, United States; Institute for Systems Genomics, University of Connecticut, Farmington, CT, United States; School of Medicine Department of Pediatrics, University of Connecticut, Farmington, CT, United States.
| | - Jing Wu
- Department of Statistics, University of Connecticut, Storrs, CT, United States
| | - Dorothy Vittner
- School of Nursing, University of Connecticut, Storrs, CT, United States; Connecticut Department of Developmental Services, Hartford, CT, United States
| | - Wanli Xu
- School of Nursing, University of Connecticut, Storrs, CT, United States
| | - Naveed Hussain
- School of Medicine Department of Pediatrics, University of Connecticut, Farmington, CT, United States; Connecticut Children's Medical Center, Hartford, CT, United States
| | - Shari Galvin
- Connecticut Children's Medical Center, Hartford, CT, United States
| | - Megan Fitzsimons
- Connecticut Children's Medical Center, Hartford, CT, United States
| | - Jacqueline M McGrath
- School of Nursing, University of Connecticut, Storrs, CT, United States; Connecticut Children's Medical Center, Hartford, CT, United States
| | - Wendy A Henderson
- Digestive Disorders Unit, Biobehavioral Branch, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, United States
| |
Collapse
|
31
|
Abey SK, Yuana Y, Joseph PV, Kenea ND, Fourie NH, Sherwin LB, Gonye GE, Smyser PA, Stempinski ES, Boulineaux CM, Weaver KR, Bleck CK, Henderson WA. Data supporting the effects of lysozyme on mRNA and protein expression in a colonic epithelial scratch wound model. Data Brief 2017; 11:15-18. [PMID: 28119952 PMCID: PMC5238358 DOI: 10.1016/j.dib.2016.12.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Accepted: 12/23/2016] [Indexed: 11/25/2022] Open
Abstract
Colonic epithelial health is implicated in a host of gastrointestinal (GI) diseases and disorders. Lysozyme is suspected to play a role in the ability of the epithelium to recover from injury (Abey et al., in press; Gallo, 2012; Rubio, 2014) [1], [2], [3]. Disrupted repair mechanisms may lead to delayed or ineffective recovery and disruptions to epithelial biology resulting in GI symptoms and altered barrier function (Peterson and Artis, 2014) [4]. The effect of lysozyme on the transcriptomic and proteomic profile of healthy colonic epithelial cells was investigated. Epithelial cells in culture were scratch wounded and treated with lysozyme. mRNA and protein profiles were simultaneously quantified in the same sample using a digital counting technology. Gene and protein expressions altered by the presence or absence of lysozyme are described in this article. Extensive statistical and bioinformatic analysis, and interpretation of the results can be found in "Lysozyme association with circulating RNA, extracellular vesicles, and chronic stress" (Abey et al., in press) [1].
Collapse
Affiliation(s)
- Sarah K. Abey
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Yuana Yuana
- Image Sciences Institute, Division of Imaging, University Medical Centre Utrecht, Netherlands
| | - Paule V. Joseph
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Natnael D. Kenea
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Nicolaas H. Fourie
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - LeeAnne B. Sherwin
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | | | - Paul A. Smyser
- The Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Erin S. Stempinski
- Electron Microscopy Core Facility, National Heart, Lung, and Blood Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Christina M. Boulineaux
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Kristen R. Weaver
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Christopher K.E. Bleck
- Electron Microscopy Core Facility, National Heart, Lung, and Blood Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Wendy A. Henderson
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| |
Collapse
|
32
|
Fourie NH, Wang D, Abey SK, Creekmore AL, Hong S, Martin CG, Wiley JW, Henderson WA. Structural and functional alterations in the colonic microbiome of the rat in a model of stress induced irritable bowel syndrome. Gut Microbes 2017; 8:33-45. [PMID: 28059627 PMCID: PMC5341915 DOI: 10.1080/19490976.2016.1273999] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 11/29/2016] [Accepted: 12/13/2016] [Indexed: 02/03/2023] Open
Abstract
Stress is known to perturb the microbiome and exacerbate irritable bowel syndrome (IBS) associated symptoms. Characterizing structural and functional changes in the microbiome is necessary to understand how alterations affect the biomolecular environment of the gut in IBS. Repeated water avoidance (WA) stress was used to induce IBS-like symptoms in rats. The colon-mucosa associated microbiome was characterized in 13 stressed and control animals by 16S sequencing. In silico analysis of the functional domains of microbial communities was done by inferring metagenomic profiles from 16S data. Microbial communities and functional profiles were compared between conditions. WA animals exhibited higher α-diversity and moderate divergence in community structure (β-diversity) compared with controls. Specific clades and taxa were consistently and significantly modified in the WA animals. The WA microbiome was particularly enriched in Proteobacteria and depleted in several beneficial taxa. A decreased capacity in metabolic domains, including energy- and lipid-metabolism, and an increased capacity for fatty acid and sulfur metabolism was inferred for the WA microbiome. The stressed condition favored the proliferation of a greater diversity of microbes that appear to be functionally similar, resulting in a functionally poorer microbiome with implications for epithelial health. Taxa, with known beneficial effects, were found to be depleted, which supports their relevance as therapeutic agents to restore microbial health. Microbial sulfur metabolism may form a key component of visceral nerve sensitization pathways and is therefore of interest as a target metabolic domain in microbial ecological restoration.
Collapse
Affiliation(s)
- Nicolaas H Fourie
- a National Institutes of Health, Division of Intramural Research, NINR, DHHS , Bethesda , MD , USA
| | - Dan Wang
- a National Institutes of Health, Division of Intramural Research, NINR, DHHS , Bethesda , MD , USA
| | - Sarah K Abey
- a National Institutes of Health, Division of Intramural Research, NINR, DHHS , Bethesda , MD , USA
| | - Amy L Creekmore
- b University of Michigan Medical School , Department of Internal Medicine - Gastroenterology , Ann Arbor , MI , USA
| | - Shuangsong Hong
- b University of Michigan Medical School , Department of Internal Medicine - Gastroenterology , Ann Arbor , MI , USA
| | - Christiana G Martin
- a National Institutes of Health, Division of Intramural Research, NINR, DHHS , Bethesda , MD , USA
| | - John W Wiley
- b University of Michigan Medical School , Department of Internal Medicine - Gastroenterology , Ann Arbor , MI , USA
| | - Wendy A Henderson
- a National Institutes of Health, Division of Intramural Research, NINR, DHHS , Bethesda , MD , USA
| |
Collapse
|
33
|
Abey SK, Yuana Y, Joseph PV, Kenea ND, Fourie NH, Sherwin LB, Gonye GE, Smyser PA, Stempinski ES, Boulineaux CM, Weaver KR, Bleck CK, Henderson WA. Lysozyme association with circulating RNA, extracellular vesicles, and chronic stress. BBA Clin 2016; 7:23-35. [PMID: 28053879 PMCID: PMC5200883 DOI: 10.1016/j.bbacli.2016.12.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 12/06/2016] [Accepted: 12/15/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Stress has demonstrated effects on inflammation though underlying cell-cell communication mechanisms remain unclear. We hypothesize that circulating RNAs and extracellular vesicles (EVs) in patients with chronic stress contain signals with functional roles in cell repair. METHODS Blood transcriptome from patients with Irritable Bowel Syndrome versus controls were compared to identify signaling pathways and effectors. Plasma EVs were isolated (size-exclusion chromatography) and characterized for effectors' presence (immunogold labelling-electron microscopy). Based on transcriptome pathways and EV-labelling, lysozyme's effects on cell migration were tested in human colon epithelial CRL-1790 cells and compared to the effects of CXCL12, a migration inducer (wound assay). The effect of lysozyme on immune-linked mRNA and protein levels in cells which survived following serum starvation and scratch wound were investigated (NanoString). RESULTS Blood transcriptomes revealed pyridoxal 5'phosphate salvage, pyrimidine ribonucleotides salvage pathways, atherosclerosis, and cell movement signaling with membrane CD9 and extracellular lysozyme as effectors. Plasma EVs showed labelling with CD9, mucins, and lysozyme. This is the first identification of lysozyme on plasma EVs. In CRL-1790 cells, lysozyme induced migration and repaired scratch wound as well as CXCL12. Immune mRNA and protein expressions were altered in cells which survived following serum starvation and scratch wound, with or without lysozyme in serum-free media post-wounding: CD9, IL8, IL6 mRNAs and CD9, NT5E, PD-L1 proteins. CONCLUSIONS Repair and inflammatory signals are identified in plasma EVs and circulating RNAs in chronic stress. Registered clinicaltrials.gov #NCT00824941. GENERAL SIGNIFICANCE This study highlights the role of circulating RNAs and EVs in stress.
Collapse
Affiliation(s)
- Sarah K. Abey
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Yuana Yuana
- Image Sciences Institute, Division of Imaging, University Medical Centre Utrecht, Netherlands
| | - Paule V. Joseph
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Natnael D. Kenea
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Nicolaas H. Fourie
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - LeeAnne B. Sherwin
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | | | - Paul A. Smyser
- The Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Erin S. Stempinski
- Electron Microscopy Core Facility, National Heart, Lung, and Blood Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Christina M. Boulineaux
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Kristen R. Weaver
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Christopher K.E. Bleck
- Electron Microscopy Core Facility, National Heart, Lung, and Blood Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Wendy A. Henderson
- Digestive Disorders Unit, Division of Intramural Research, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
- Corresponding author at: Digestive Disorder Unit, 10 Center Drive, 2-1341, Division of Intramural Research, NINR, NIH, DHHS, Bethesda, MD 20892, United States.Digestive Disorder UnitDivision of Intramural ResearchNINR, NIH, DHHS10 Center Drive, 2-1341BethesdaMD 20892United States
| |
Collapse
|
34
|
Fourie NH, Peace RM, Abey SK, Sherwin LB, Wiley JW, Henderson WA. Perturbations of Circulating miRNAs in Irritable Bowel Syndrome Detected Using a Multiplexed High-throughput Gene Expression Platform. J Vis Exp 2016:54693. [PMID: 27929459 PMCID: PMC5226328 DOI: 10.3791/54693] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The gene expression platform assay allows for robust and highly reproducible quantification of the expression of up to 800 transcripts (mRNA or miRNAs) in a single reaction. The miRNA assay counts transcripts by directly imaging and digitally counting miRNA molecules that are labeled with color-coded fluorescent barcoded probe sets (a reporter probe and a capture probe). Barcodes are hybridized directly to mature miRNAs that have been elongated by ligating a unique oligonucleotide tag (miRtag) to the 3' end. Reverse transcription and amplification of the transcripts are not required. Reporter probes contain a sequence of six color positions populated using a combination of four fluorescent colors. The four colors over six positions are used to construct a gene-specific color barcode sequence. Post-hybridization processing is automated on a robotic prep station. After hybridization, the excess probes are washed away, and the tripartite structures (capture probe-miRNA-reporter probe) are fixed to a streptavidin-coated slide via the biotin-labeled capture probe. Imaging and barcode counting is done using a digital analyzer. The immobilized barcoded miRNAs are visualized and imaged using a microscope and camera, and the unique barcodes are decoded and counted. Data quality control (QC), normalization, and analysis are facilitated by a custom-designed data processing and analysis software that accompanies the assay software. The assay demonstrates high linearity over a broad range of expression, as well as high sensitivity. Sample and assay preparation does not involve enzymatic reactions, reverse transcription, or amplification; has few steps; and is largely automated, reducing investigator effects and resulting in high consistency and technical reproducibility. Here, we describe the application of this technology to identifying circulating miRNA perturbations in irritable bowel syndrome.
Collapse
Affiliation(s)
- Nicolaas H Fourie
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS
| | - Ralph M Peace
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS; National Institutes of Health Research Scholar, Howard Hughes Medical Institute
| | - Sarah K Abey
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS
| | - LeeAnne B Sherwin
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS
| | - John W Wiley
- Internal Medicine, Medical School, University of Michigan
| | - Wendy A Henderson
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS;
| |
Collapse
|
35
|
Hardy TM, McCarthy DO, Fourie NH, Henderson WA. Anti-Müllerian Hormone Levels and Urinary Cortisol in Women With Chronic Abdominal Pain. J Obstet Gynecol Neonatal Nurs 2016; 45:772-780. [PMID: 27639111 DOI: 10.1016/j.jogn.2016.06.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2016] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE To explore the association of hypothalamic-pituitary-adrenal activity with ovarian functioning in women with and without chronic abdominal pain (CAP). DESIGN AND SETTING A secondary data analysis was performed with data from female participants in a natural history protocol at the National Institutes of Health. PARTICIPANTS A total of 36 women (age range = 19-39 years, mean = 27.11 years) were included in the study. METHODS This pilot study was conducted with a subset of participants enrolled in a natural history protocol conducted in the Hatfield Clinical Research Center at the National Institutes of Health. The parent study included participants with and without CAP who provided a 5-hour urine sample for determination of cortisol levels and serum samples for determination of circulating levels of cortisol, luteinizing hormone, and follicle-stimulating hormone. CAP was defined as presence or absence of chronic pain for at least 6 months and was determined via self-report. RESULTS Anti-Müllerian hormone (AMH) concentrations declined significantly with age as expected. When AMH levels were dichotomized as normal or abnormal (defined as higher or lower than age-specific normative ranges, respectively), there were significant associations between abnormal AMH levels and CAP and urine cortisol levels. Participants with CAP or low urine cortisol levels were significantly more likely to have abnormal AMH levels. CONCLUSION Results suggest that chronic abdominal pain and hypothalamic-pituitary-adrenal dysregulation may be associated with abnormal AMH levels.
Collapse
|
36
|
Cong X, Xu W, Romisher R, Poveda S, Forte S, Starkweather A, Henderson WA. Gut Microbiome and Infant Health: Brain-Gut-Microbiota Axis and Host Genetic Factors. Yale J Biol Med 2016; 89:299-308. [PMID: 27698614 PMCID: PMC5045139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The development of the neonatal gut microbiome is influenced by multiple factors, such as delivery mode, feeding, medication use, hospital environment, early life stress, and genetics. The dysbiosis of gut microbiota persists during infancy, especially in high-risk preterm infants who experience lengthy stays in the Neonatal intensive care unit (NICU). Infant microbiome evolutionary trajectory is essentially parallel with the host (infant) neurodevelopmental process and growth. The role of the gut microbiome, the brain-gut signaling system, and its interaction with the host genetics have been shown to be related to both short and long term infant health and bio-behavioral development. The investigation of potential dysbiosis patterns in early childhood is still lacking and few studies have addressed this host-microbiome co-developmental process. Further research spanning a variety of fields of study is needed to focus on the mechanisms of brain-gut-microbiota signaling system and the dynamic host-microbial interaction in the regulation of health, stress and development in human newborns.
Collapse
Affiliation(s)
- Xiaomei Cong
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
- Institute for Systems Genomics, University of Connecticut, Farmington, Connecticut, USA
| | - Wanli Xu
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | - Rachael Romisher
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | - Samantha Poveda
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | - Shaina Forte
- School of Nursing, University of Connecticut, Storrs, Connecticut, USA
| | | | - Wendy A. Henderson
- Digestive Disorders Unit, Biobehavioral Branch, National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA
| |
Collapse
|
37
|
Weaver KR, Sherwin LB, Walitt B, Melkus GD, Henderson WA. Neuroimaging the brain-gut axis in patients with irritable bowel syndrome. World J Gastrointest Pharmacol Ther 2016; 7:320-333. [PMID: 27158548 PMCID: PMC4848255 DOI: 10.4292/wjgpt.v7.i2.320] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 10/06/2015] [Accepted: 02/24/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To summarize and synthesize current literature on neuroimaging the brain-gut axis in patients with irritable bowel syndrome (IBS).
METHODS: A database search for relevant literature was conducted using PubMed, Scopus and Embase in February 2015. Date filters were applied from the year 2009 and onward, and studies were limited to those written in the English language and those performed upon human subjects. The initial search yielded 797 articles, out of which 38 were pulled for full text review and 27 were included for study analysis. Investigations were reviewed to determine study design, methodology and results, and data points were placed in tabular format to facilitate analysis of study findings across disparate investigations.
RESULTS: Analysis of study data resulted in the abstraction of four key themes: Neurohormonal differences, anatomic measurements of brain structure and connectivity, differences in functional responsiveness of the brain during rectal distention, and confounding/correlating patient factors. Studies in this review noted alterations of glutamate in the left hippocampus (HIPP), commonalities across IBS subjects in terms of brain oscillation patterns, cortical thickness/gray matter volume differences, and neuroanatomical regions with increased activation in patients with IBS: Anterior cingulate cortex, mid cingulate cortex, amygdala, anterior insula, posterior insula and prefrontal cortex. A striking finding among interventions was the substantial influence that patient variables (e.g., sex, psychological and disease related factors) had upon the identification of neuroanatomical differences in structure and connectivity.
CONCLUSION: The field of neuroimaging can provide insight into underlying physiological differences that distinguish patients with IBS from a healthy population.
Collapse
|
38
|
Cong X, Xu W, Janton S, Henderson WA, Matson A, McGrath JM, Maas K, Graf J. Gut Microbiome Developmental Patterns in Early Life of Preterm Infants: Impacts of Feeding and Gender. PLoS One 2016; 11:e0152751. [PMID: 27111847 PMCID: PMC4844123 DOI: 10.1371/journal.pone.0152751] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Accepted: 03/18/2016] [Indexed: 12/19/2022] Open
Abstract
Gut microbiota plays a key role in multiple aspects of human health and disease, particularly in early life. Distortions of the gut microbiota have been found to correlate with fatal diseases in preterm infants, however, developmental patterns of gut microbiome and factors affecting the colonization progress in preterm infants remain unclear. The purpose of this prospective longitudinal study was to explore day-to-day gut microbiome patterns in preterm infants during their first 30 days of life in the neonatal intensive care unit (NICU) and investigate potential factors related to the development of the infant gut microbiome. A total of 378 stool samples were collected daily from 29 stable/healthy preterm infants. DNA extracted from stool was used to sequence the V4 region of the 16S rRNA gene region for community analysis. Operational taxonomic units (OTUs) and α-diversity of the community were determined using QIIME software. Proteobacteria was the most abundant phylum, accounting for 54.3% of the total reads. Result showed shift patterns of increasing Clostridium and Bacteroides, and decreasing Staphylococcus and Haemophilus over time during early life. Alpha-diversity significantly increased daily in preterm infants after birth and linear mixed-effects models showed that postnatal days, feeding types and gender were associated with the α-diversity, p< 0.05–0.01. Male infants were found to begin with a low α-diversity, whereas females tended to have a higher diversity shortly after birth. Female infants were more likely to have higher abundance of Clostridiates, and lower abundance of Enterobacteriales than males during early life. Infants fed mother’s own breastmilk (MBM) had a higher diversity of gut microbiome and significantly higher abundance in Clostridiales and Lactobacillales than infants fed non-MBM. Permanova also showed that bacterial compositions were different between males and females and between MBM and non-MBM feeding types. In conclusion, infant postnatal age, gender and feeding type significantly contribute to the dynamic development of the gut microbiome in preterm infants.
Collapse
Affiliation(s)
- Xiaomei Cong
- School of Nursing, University of Connecticut, Storrs, Connecticut, United States of America
- Institute for Systems Genomics, University of Connecticut, Farmington, Connecticut, United States of America
- * E-mail:
| | - Wanli Xu
- School of Nursing, University of Connecticut, Storrs, Connecticut, United States of America
| | - Susan Janton
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, United States of America
| | - Wendy A. Henderson
- Digestive Disorders Unit, Biobehavioral Branch, National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Adam Matson
- Connecticut Children’s Medical Center, Hartford, Connecticut, United States of America
| | - Jacqueline M. McGrath
- School of Nursing, University of Connecticut, Storrs, Connecticut, United States of America
- Connecticut Children’s Medical Center, Hartford, Connecticut, United States of America
| | - Kendra Maas
- Microbial Analysis, Resources, and Services, University of Connecticut, Storrs, Connecticut, United States of America
| | - Joerg Graf
- Institute for Systems Genomics, University of Connecticut, Farmington, Connecticut, United States of America
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, United States of America
| |
Collapse
|
39
|
Abstract
Irritable bowel syndrome (IBS) is a poorly understood disorder characterized by persistent symptoms, including visceral pain. Studies have demonstrated oral microbiome differences in inflammatory bowel diseases suggesting the potential of the oral microbiome in the study of non-oral conditions. In this exploratory study we examine whether differences exist in the oral microbiome of IBS participants and healthy controls, and whether the oral microbiome relates to symptom severity. The oral buccal mucosal microbiome of 38 participants was characterized using PhyloChip microarrays. The severity of visceral pain was assessed by orally administering a gastrointestinal test solution. Participants self-reported their induced visceral pain. Pain severity was highest in IBS participants (P = 0.0002), particularly IBS-overweight participants (P = 0.02), and was robustly correlated to the abundance of 60 OTUs, 4 genera, 5 families and 4 orders of bacteria (r2 > 0.4, P < 0.001). IBS-overweight participants showed decreased richness in the phylum Bacteroidetes (P = 0.007) and the genus Bacillus (P = 0.008). Analysis of β-diversity found significant separation of the IBS-overweight group (P < 0.05). Our oral microbial results are concordant with described fecal and colonic microbiome-IBS and -weight associations. Having IBS and being overweight, rather than IBS-subtypes, was the most important factor in describing the severity of visceral pain and variation in the microbiome. Pain severity was strongly correlated to the abundance of many taxa, suggesting the potential of the oral microbiome in diagnosis and patient phenotyping. The oral microbiome has potential as a source of microbial information in IBS.
Collapse
Affiliation(s)
- Nicolaas H. Fourie
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD, USA
| | - Dan Wang
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD, USA
| | - Sarah K. Abey
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD, USA
| | - LeeAnne B. Sherwin
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD, USA
| | - Paule V. Joseph
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD, USA
| | - Bridgett Rahim-Williams
- National Institute on Minority Health and Health Disparities, National Institutes of Health, DHHS, Bethesda, MD, USA
| | - Eric G. Ferguson
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD, USA
| | - Wendy A. Henderson
- Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD, USA
| |
Collapse
|
40
|
Heitkemper MM, Han CJ, Jarrett ME, Gu H, Djukovic D, Shulman RJ, Raftery D, Henderson WA, Cain KC. Serum Tryptophan Metabolite Levels During Sleep in Patients With and Without Irritable Bowel Syndrome (IBS). Biol Res Nurs 2015; 18:193-8. [PMID: 26156003 DOI: 10.1177/1099800415594251] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Poor sleep and stress are more frequently reported by women with irritable bowel syndrome (IBS) than by healthy control (HC) women. The pathophysiology linking poor sleep and stress to gastrointestinal symptoms remains poorly understood. We used a metabolomic approach to determine whether tryptophan (TRP) metabolites differ between women with and without IBS and whether the levels are associated with sleep indices and serum cortisol levels. This study sample included 38 women with IBS and 21 HCs. The women were studied in a sleep laboratory for three consecutive nights. On the third night of the study, a social stressor was introduced, then blood samples were drawn every 20 min and sleep indices were measured. Metabolites were determined by targeted liquid chromatography tandem mass spectrometry in a sample collected 1 hr after the onset of sleep. The ratios of each metabolite to TRP were used for analyses. Correlations were controlled for age and oral contraceptive use. Melatonin/TRP levels were lower (p = .005) in the IBS-diarrhea group versus the IBS-constipation and HC groups, and kynurenine/TRP ratios tended to be lower (p = .067) in the total IBS and IBS-diarrhea groups compared to HCs. Associations within the HC group included melatonin/TRP with polysomnography-sleep efficiency (r = .61, p = .006) and weaker positive correlations with the other ratios for either sleep efficiency or percentage time in rapid eye movement sleep (r > .40, p = .025-.091). This study suggests that reductions in early nighttime melatonin/TRP levels may be related to altered sleep quality in IBS, particularly those with diarrhea.
Collapse
Affiliation(s)
- Margaret M Heitkemper
- Department of Biobehavioral Nursing and Health Systems, University of Washington, Seattle, WA, USA
| | - Claire Jungyoun Han
- Department of Biobehavioral Nursing and Health Systems, University of Washington, Seattle, WA, USA
| | - Monica E Jarrett
- Department of Biobehavioral Nursing and Health Systems, University of Washington, Seattle, WA, USA
| | - Haiwei Gu
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center, University of Washington, Seattle, WA, USA
| | - Danijel Djukovic
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center, University of Washington, Seattle, WA, USA
| | - Robert J Shulman
- Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Daniel Raftery
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center, University of Washington, Seattle, WA, USA Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Wendy A Henderson
- Digestive Disorders Unit, Biobehavioral Branch, Division of Intramural Research, NINR, NIH, DHHS, Bethesda, MD, USA
| | - Kevin C Cain
- Department of Biostatistics and Office of Nursing Research, University of Washington, Seattle, WA, USA
| |
Collapse
|
41
|
Mehdi BL, Qian J, Nasybulin E, Park C, Welch DA, Faller R, Mehta H, Henderson WA, Xu W, Wang CM, Evans JE, Liu J, Zhang JG, Mueller KT, Browning ND. Observation and quantification of nanoscale processes in lithium batteries by operando electrochemical (S)TEM. Nano Lett 2015; 15:2168-73. [PMID: 25705928 DOI: 10.1021/acs.nanolett.5b00175] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
An operando electrochemical stage for the transmission electron microscope has been configured to form a "Li battery" that is used to quantify the electrochemical processes that occur at the anode during charge/discharge cycling. Of particular importance for these observations is the identification of an image contrast reversal that originates from solid Li being less dense than the surrounding liquid electrolyte and electrode surface. This contrast allows Li to be identified from Li-containing compounds that make up the solid-electrolyte interphase (SEI) layer. By correlating images showing the sequence of Li electrodeposition and the evolution of the SEI layer with simultaneously acquired and calibrated cyclic voltammograms, electrodeposition, and electrolyte breakdown processes can be quantified directly on the nanoscale. This approach opens up intriguing new possibilities to rapidly visualize and test the electrochemical performance of a wide range of electrode/electrolyte combinations for next generation battery systems.
Collapse
Affiliation(s)
- B L Mehdi
- Joint Center for Energy Storage Research, Fundamental and Computational Science Directorate, Pacific Northwest National Laboratory , Richland, Washington 99352, United States
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Del Valle-Pinero AY, Sherwin LB, Anderson EM, Caudle RM, Henderson WA. Altered vasoactive intestinal peptides expression in irritable bowel syndrome patients and rats with trinitrobenzene sulfonic acid-induced colitis. World J Gastroenterol 2015; 21:155-163. [PMID: 25574088 PMCID: PMC4284331 DOI: 10.3748/wjg.v21.i1.155] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/29/2014] [Accepted: 11/19/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the vasoactive intestinal peptides (VIP) expression in irritable bowel syndrome (IBS) and trinitrobenzene sulfonic acid (TNBS) induced colitis.
METHODS: The VIP gene expression and protein plasma levels were measured in adult participants (45.8% male) who met Rome III criteria for IBS for longer than 6 mo and in a rat model of colitis as induced by TNBS. Plasma and colons were collected from naïve and inflamed rats. Markers assessing inflammation (i.e., weight changes and myeloperoxidase levels) were assessed on days 2, 7, 14 and 28 and compared to controls. Visceral hypersensitivity of the rats was assessed with colo-rectal distension and mechanical threshold testing on hind paws. IBS patients (n = 12) were age, gender, race, and BMI-matched with healthy controls (n = 12). Peripheral whole blood and plasma from fasting participants was collected and VIP plasma levels were assayed using a VIP peptide-enzyme immunoassay. Human gene expression of VIP was analyzed using a custom PCR array.
RESULTS: TNBS induced colitis in the rats was confirmed with weight loss (13.7 ± 3.2 g) and increased myeloperoxidase activity. Visceral hypersensitivity to colo-rectal distension was increased in TNBS treated rats up to 21 d and resolved by day 28. Somatic hypersensitivity was also increased up to 14 d post TNBS induction of colitis. The expression of an inflammatory marker myeloperoxidase was significantly elevated in the intracellular granules of neutrophils in rat models following TNBS treatment compared to naïve rats. This confirmed the induction of inflammation in rats following TNBS treatment. VIP plasma concentration was significantly increased in rats following TNBS treatment as compared to naïve animals (P < 0.05). Likewise, the VIP gene expression from peripheral whole blood was significantly upregulated by 2.91-fold in IBS patients when compared to controls (P < 0.00001; 95%CI). VIP plasma protein was not significantly different when compared with controls (P = 0.193).
CONCLUSION: Alterations in VIP expression may play a role in IBS. Therefore, a better understanding of the physiology of VIP could lead to new therapeutics.
Collapse
|
43
|
Reddy SY, Rasmussen NA, Fourie NH, Berger RS, Martino AC, Gill J, Longchamps R, Wang XM, Heitkemper MM, Henderson WA. Sleep quality, BDNF genotype and gene expression in individuals with chronic abdominal pain. BMC Med Genomics 2014; 7:61. [PMID: 25358868 PMCID: PMC4226913 DOI: 10.1186/s12920-014-0061-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 10/09/2014] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Sleep quality and genetics may contribute to the etiology of gastrointestinal (GI) symptoms. Individuals with impaired sleep often have a number of associated symptoms including chronic abdominal pain (CAP). The current study examined the interactions of brain-derived neurotrophic factor (BDNF) genotype with sleep quality in persons with CAP and healthy controls. In addition, associations among sleep quality, BDNF genotype, and gene expression were explored in the participants. METHODS Data were collected on 59 participants (46% male, 61% White, 26.9 ± 6.6 years; CAP (n=19) and healthy controls (n=40)). Participants with CAP reported poorer sleep quality compared to healthy controls. BDNF genotype, categorized as Val/Val homozygotes versus the Met carriers. RESULTS Microarray analysis found twenty-four differentially expressed genes by a two-fold magnitude in participants with poor sleep quality compared to good sleep quality, and seven differentially expressed genes comparing CAP to healthy control. Three specific genes in the pain group overlap with sleep quality, including insulin-like growth factor 1 (IGF1), spermatogenesis associated serine-rich 2-like (SPATS2L), and immunoglobulin heavy constant gamma 1 or mu (IGHG1/// IGHM). BDNF was shown to have an interaction effect with GI and sleep symptoms. CONCLUSIONS Participants with CAP reported poor sleep quality compared to healthy controls. The role of the BDNF Met allele on differential gene expression was not distinct as main factor, but impacted interactions with sleep quality and CAP. Down-regulation of IGF1, SPATS2L, and IGHG1 expression may be related to the etiology of poor sleep quality and CAP. TRIAL REGISTRATION Clinicaltrial.gov # NCT00824941.
Collapse
Affiliation(s)
- Swarnalatha Y Reddy
- />Division of Intramural Research, National Institute of Nursing of Research, National Institutes of Health, Department of Health and Human Resources, 10 Center Drive, Building 10, 2-1341, Bethesda, MD 20892 USA
| | - Nat A Rasmussen
- />Division of Intramural Research, National Institute of Nursing of Research, National Institutes of Health, Department of Health and Human Resources, 10 Center Drive, Building 10, 2-1341, Bethesda, MD 20892 USA
| | - Nicolaas H Fourie
- />Division of Intramural Research, National Institute of Nursing of Research, National Institutes of Health, Department of Health and Human Resources, 10 Center Drive, Building 10, 2-1341, Bethesda, MD 20892 USA
| | - Rebecca S Berger
- />Division of Intramural Research, National Institute of Nursing of Research, National Institutes of Health, Department of Health and Human Resources, 10 Center Drive, Building 10, 2-1341, Bethesda, MD 20892 USA
| | - Angela C Martino
- />Division of Intramural Research, National Institute of Nursing of Research, National Institutes of Health, Department of Health and Human Resources, 10 Center Drive, Building 10, 2-1341, Bethesda, MD 20892 USA
| | - Jessica Gill
- />Division of Intramural Research, National Institute of Nursing of Research, National Institutes of Health, Department of Health and Human Resources, 10 Center Drive, Building 10, 2-1341, Bethesda, MD 20892 USA
| | - Ryan Longchamps
- />Division of Intramural Research, National Institute of Nursing of Research, National Institutes of Health, Department of Health and Human Resources, 10 Center Drive, Building 10, 2-1341, Bethesda, MD 20892 USA
| | - Xiao Min Wang
- />Division of Intramural Research, National Institute of Nursing of Research, National Institutes of Health, Department of Health and Human Resources, 10 Center Drive, Building 10, 2-1341, Bethesda, MD 20892 USA
| | | | - Wendy A Henderson
- />Division of Intramural Research, National Institute of Nursing of Research, National Institutes of Health, Department of Health and Human Resources, 10 Center Drive, Building 10, 2-1341, Bethesda, MD 20892 USA
| |
Collapse
|
44
|
Longchamps RJ, Abey SK, Martino AC, Henderson WA. Letter: gender-associated cell-free microRNA profiles in non-alcoholic fatty liver disease. Aliment Pharmacol Ther 2014; 39:997-8. [PMID: 24689349 PMCID: PMC4007279 DOI: 10.1111/apt.12649] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 01/13/2014] [Accepted: 01/14/2014] [Indexed: 12/12/2022]
Affiliation(s)
- Ryan J. Longchamps
- Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
| | - Sarah K. Abey
- Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
| | - Angela C. Martino
- Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
| | - Wendy A. Henderson
- Digestive Disorder Unit, Biobehavioral Branch, Division of Intramural Research, National Institute of Nursing Research, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
,Corresponding Author Digestive Disorder Unit, Biobehavioral Branch 10 Center Drive, 2-1341 Division of Intramural Research, NINR, NIH, DHHS Bethesda, MD 20892 Phone: 301-451-9534 Fax: 301-480-1413
| |
Collapse
|
45
|
Fourie NH, Peace RM, Abey SK, Sherwin LB, Rahim-Williams B, Smyser PA, Wiley JW, Henderson WA. Elevated circulating miR-150 and miR-342-3p in patients with irritable bowel syndrome. Exp Mol Pathol 2014; 96:422-5. [PMID: 24768587 DOI: 10.1016/j.yexmp.2014.04.009] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 04/10/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS MicroRNAs (miRNAs) are small non-coding RNAs, which regulate gene expression and are thus of interest as diagnostic markers, and as clues to etiology and targets of intervention. This pilot study examined whether circulating miRNAs are differentially expressed in patients with IBS. METHODS miRNA microarrays (NanoString) were run on the whole blood of 43 participants. RESULTS hsa-miR-150 and hsa-miR-342-3p were found to be significantly elevated (FDR adjusted p≤0.05, ≥1.6 fold change) in IBS patients compared to healthy controls. Neither of these miRNAs showed any relationship to race or sex. hsa-miR-150 is associated with inflammatory bowel disorders and pain, and interacts with a protein kinase (AKT2) through which it may affect inflammatory pathways. hsa-miR-342-3p is predicted to interact with mRNAs involved in pain signaling, colonic motility, and smooth muscle function. CONCLUSIONS This preliminary study reports the association of two miRNAs, detected in whole blood, with IBS. These miRNAs link to pain and inflammatory pathways both of which are thought to be dysregulated in IBS. Larger sample sizes are needed to confirm their importance and potential as biomarkers.
Collapse
Affiliation(s)
- Nicolaas H Fourie
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD 20892, United States
| | - Ralph Michael Peace
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD 20892, United States; Howard Hughes Medical Institute National Institutes of Health Research Scholar, Chevy Chase, MD 20815, United States
| | - Sarah K Abey
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD 20892, United States
| | - LeeAnne B Sherwin
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD 20892, United States
| | - Bridgett Rahim-Williams
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD 20892, United States; National Institute on Minority Health and Health Disparities, National Institutes of Health, DHHS, Bethesda, MD 20892, United States
| | - Paul A Smyser
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD 20892, United States
| | - John W Wiley
- Internal Medicine, Medical School, University of Michigan, Ann Arbor, MI 48109, United States
| | - Wendy A Henderson
- Digestive Disorders Unit, National Institute of Nursing Research, National Institutes of Health, DHHS, Bethesda, MD 20892, United States.
| |
Collapse
|
46
|
Del Valle-Pinero AY, Van Deventer HE, Fourie NH, Martino AC, Patel NS, Remaley AT, Henderson WA. Gastrointestinal permeability in patients with irritable bowel syndrome assessed using a four probe permeability solution. Clin Chim Acta 2013; 418:97-101. [PMID: 23328210 PMCID: PMC3594104 DOI: 10.1016/j.cca.2012.12.032] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 12/31/2012] [Accepted: 12/31/2012] [Indexed: 02/08/2023]
Abstract
BACKGROUND Abnormal gastrointestinal permeability has been linked to irritable bowel syndrome (IBS). The lactulose-to-mannitol ratio is traditionally used to assess small intestine permeability while sucralose and sucrose are used to assess colonic and gastric permeability respectively. We used a single 4-probe test solution to assess permeability throughout the gastrointestinal tract in IBS patients and healthy controls by measuring the recovery of the probes in urine after ingestion using a modified liquid chromatography mass spectrometry protocol. METHODS Fasting participants (N=59) drank a permeability test solution (100ml: sucralose, sucrose, mannitol, and lactulose). Urine was collected over a 5-h period and kept frozen until analysis. Urinary sugar concentrations were measured using a liquid chromatography/triple quadruple mass spectrometer. RESULTS Colonic permeability was significantly lower in IBS patients when compared to healthy controls (p=0.011). Gastric and small intestinal permeability did not significantly differ between the groups. CONCLUSIONS The study demonstrates the clinical potential of this non-invasive method for assessing alterations in gastrointestinal permeability in patients with IBS.
Collapse
Affiliation(s)
| | - Hendrick E. Van Deventer
- Department of Laboratory Medicine, NIH, DHHS, Bethesda, MD
- Warren Grant Magnuson Clinical Center, NIH, DHHS, Bethesda, MD
| | - Nicolaas H. Fourie
- Biobehavioral Branch, Intramural Research Program, NINR, NIH, DHHS, Bethesda, MD
| | - Angela C. Martino
- Biobehavioral Branch, Intramural Research Program, NINR, NIH, DHHS, Bethesda, MD
| | - Nayan S. Patel
- Biobehavioral Branch, Intramural Research Program, NINR, NIH, DHHS, Bethesda, MD
| | - Alan T. Remaley
- Department of Laboratory Medicine, NIH, DHHS, Bethesda, MD
- Warren Grant Magnuson Clinical Center, NIH, DHHS, Bethesda, MD
| | - Wendy A. Henderson
- Biobehavioral Branch, Intramural Research Program, NINR, NIH, DHHS, Bethesda, MD
| |
Collapse
|
47
|
Peace RM, Majors BL, Patel NS, Wang D, Valle-Pinero AYD, Martino AC, Henderson WA. Stress and gene expression of individuals with chronic abdominal pain. Biol Res Nurs 2013; 14:405-11. [PMID: 23007871 DOI: 10.1177/1099800412458350] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Research examining the role of stress in gastrointestinal (GI) symptoms such as chronic abdominal pain (CAP) is controversial. The purpose of this study was to examine the expression of genes involved in metabolic stress and toxicity in men and women with high and low levels of perceived stress with and without CAP. METHODS Data and samples were collected and the expression of genes involved in metabolic stress and toxicity was analyzed in 26 individuals who had consented to participate in a natural history protocol. Subjects completed the 10-item Perceived Stress scale (PSS). Fasting participants' peripheral whole blood was collected for proteomic and genomic studies. Polymerase chain reaction (PCR) array was used to analyze the expression of 84 key genes involved in human stress and toxicity plus 5 housekeeping genes. Plasma interleukin-1 alpha (IL-1α) protein was quantified via enzyme-linked immunosorbent assay (ELISA). RESULTS Interleukin-1 alpha gene (IL1A) was upregulated in females with high stress versus females with low stress by 2.58-fold (95% CI [0.88, 4.28]). IL1A was upregulated in participants with high stress and CAP versus those with low stress and CAP by 3.47-fold (95% CI [1.14, 5.80]). CONCLUSIONS An upregulation of the gene coding the pro-inflammatory cytokine IL-1α suggests that the mechanism behind stress-related changes in GI symptoms is pro-inflammatory in nature. The results of this study contribute to the knowledge of the mechanism behind stress-related CAP symptoms and gender differences associated with these disorders.
Collapse
Affiliation(s)
- Ralph Michael Peace
- Howard Hughes Medical Institute-National Institutes of Health Research Scholar, Chevy Chase, MD, USA
| | | | | | | | | | | | | |
Collapse
|
48
|
Henderson WA, Shankar R, Taylor TJ, Del Valle-Pinero AY, Kleiner DE, Kim KH, Youssef NN. Inverse relationship of interleukin-6 and mast cells in children with inflammatory and non-inflammatory abdominal pain phenotypes. World J Gastrointest Pathophysiol 2012; 3:102-8. [PMID: 23516176 PMCID: PMC3602438 DOI: 10.4291/wjgp.v3.i6.102] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 11/16/2012] [Accepted: 12/06/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate interleukin-6 (IL-6), mast cells, enterochromaffin cells, 5-hydroxytryptamine, and substance P in the gastrointestinal mucosa of children with abdominal pain.
METHODS: Formalin-fixed paraffin-embedded gastrointestinal biopsy blocks from patients (n = 48) with non-inflammatory bowel disease (irritable bowel syndrome and functional abdominal pain) and inflammatory bowel disease were sectioned and stained for IL-6, mast cells, enterochromaffin cells, 5-hydroxytryptamine, and substance P. All children had chronic abdominal pain as part of their presenting symptoms. Biopsy phenotype was confirmed by a pathologist, blinded to patient information. Descriptive statistics, chi-square, and independent sample t tests were used to compare differences between the inflammatory and non-inflammatory groups.
RESULTS: The cohort (n = 48), mean age 11.9 years (SD = 2.9), 54.2% females, 90% Caucasian, was comprised of a non-inflammatory (n = 26) and an inflammatory (n = 22) phenotype. There was a significant negative correlation between substance P expression and mast cell count (P = 0.05, r = -0.373). Substance P was found to be expressed more often in female patient biopsies and more intensely in the upper gastrointestinal mucosa as compared to the lower mucosa. There were significantly increased gastrointestinal mucosal immunoreactivity to IL-6 (P = 0.004) in the inflammatory phenotype compared to non-inflammatory. Additionally, we found significantly increased mast cells (P = 0.049) in the mucosa of the non-inflammatory phenotype compared to the inflammatory group. This difference was particularly noted in the lower colon biopsies.
CONCLUSION: The findings of this study yield preliminary evidence in identifying biomarkers of undiagnosed abdominal pain in children and may suggest candidate genes for future evaluation.
Collapse
|
49
|
Taylor TJ, Youssef NN, Shankar R, Kleiner DE, Henderson WA. The association of mast cells and serotonin in children with chronic abdominal pain of unknown etiology. BMC Res Notes 2010; 3:265. [PMID: 20964845 PMCID: PMC2974734 DOI: 10.1186/1756-0500-3-265] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Accepted: 10/21/2010] [Indexed: 01/11/2023] Open
Abstract
Background Abdominal pain of unknown origin affects up to 20% of school-aged children. Evaluation of children is symptom-based without clear guidelines to investigate molecular mechanisms of abdominal pain. Aberrant molecular mechanisms may increase intestinal permeability leading to interactions between the immune and nervous systems, subclinical inflammation, and visceral pain. This study evaluated the association between interleukin-6 (IL-6), mast cell infiltrates, and serotonin (5-HT) levels in gastrointestinal (GI) biopsies, with perceived abdominal pain in a pediatric cohort. Methods Clinical data and biopsy samples from pediatric patients (n = 48) with chronic abdominal pain, with and without inflammation were included. Formalin-fixed paraffin-embedded GI biopsies were sectioned and immunohistochemistry performed for IL-6 and 5-HT; mast cells were identified with toluidine blue stain. Histological findings were compared to self-reported abdominal pain between groups. Results There was significantly greater IL-6 immunoreactivity in biopsies with confirmed histologic inflammation (p = 0.004). There was a greater number of mast cells per HPF in non-inflammatory biopsies (3.5 ± 2.9) compared to the inflammatory biopsies (2.6 ± 1.8) p = 0.049. The non-inflammatory biopsy group was significantly less likely to respond to standard treatment as evidenced by higher pain reports (p = .018). Mast cells (p = .022) and 5-HT (p = .02) were significantly related to abdominal pain scores. Conclusions A potential association between self-reported abdominal pain, number of mast cells, and 5-HT levels, which may contribute to perceived GI pain in pediatric patients may exist.
Collapse
Affiliation(s)
- Tara J Taylor
- National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA.
| | | | | | | | | |
Collapse
|
50
|
Henderson WA, Schlenk EA, Kim KH, Hadigan CM, Martino AC, Sereika SM, Erlen JA. Validation of the MOS-HIV as a measure of health-related quality of life in persons living with HIV and liver disease. AIDS Care 2010; 22:483-90. [PMID: 20140792 DOI: 10.1080/09540120903207292] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Management of human immunodeficiency virus (HIV) infection with potent antiretroviral medication has transformed HIV into a chronic condition and has shifted much of the burden of disease to co-morbid conditions such as liver disease (LD). LD alone has been shown to have a significant effect on one's health-related quality of life (HRQOL). Clinical evidence suggests that the growing number of persons living with HIV+LD may have a poorer HRQOL than persons with HIV without LD. To date, the widely accepted instrument to assess HRQOL, Medical Outcomes Study-HIV Health Survey (MOS-HIV), has not been evaluated for reliability and validity in a population of HIV-infected persons with LD. METHODS HRQOL was prospectively assessed using the MOS-HIV in a sample of 532 HIV-infected adults on antiretroviral therapy (n=305 HIV and n=227 HIV+LD). In addition, participants completed standardized questionnaires of sociodemographics and co-morbid conditions. RESULTS The psychometric properties of the MOS-HIV were supported by testing reliability and construct, convergent, discriminative, and predictive validity. The MOS-HIV discriminated between those persons living with HIV with and without LD on the basis of the physical function subscale scores (p=0.018). CONCLUSION This study found the MOS-HIV valid and reliable instrument in persons with HIV+LD.
Collapse
Affiliation(s)
- Wendy A Henderson
- Biobehavioral Unit, Symptom Management Branch, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, USA.
| | | | | | | | | | | | | |
Collapse
|