Cliff O’Callahan

ORCID: 0000-0003-4420-8463
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Global Health and Surgery
  • Global Health Workforce Issues
  • Global Maternal and Child Health
  • Child and Adolescent Health
  • Ion channel regulation and function
  • Neuroscience and Neuropharmacology Research
  • Child Nutrition and Water Access
  • Infant Development and Preterm Care
  • Neonatal Respiratory Health Research
  • Oral and Craniofacial Lesions
  • Genital Health and Disease
  • Cardiac electrophysiology and arrhythmias
  • Cleft Lip and Palate Research
  • Urological Disorders and Treatments
  • Viral gastroenteritis research and epidemiology
  • Innovations in Medical Education
  • Escherichia coli research studies
  • Maternal and Neonatal Healthcare
  • Neonatal and fetal brain pathology
  • Nicotinic Acetylcholine Receptors Study
  • Receptor Mechanisms and Signaling
  • Enterobacteriaceae and Cronobacter Research
  • Family and Patient Care in Intensive Care Units
  • Maternal Mental Health During Pregnancy and Postpartum
  • Breastfeeding Practices and Influences

University of Connecticut
2008-2024

Connecticut Health Foundation
2020-2024

Middlesex Hospital
2008-2019

Yale University
2019

Rwanda Biomedical Center
2019

Centre Hospitalier Universitaire de Kigali
2019

John Brown University
2019

University of Wisconsin–Madison
2008

University of Washington
1993

University of Health Sciences
1989

Interest in global health (GH) among medical students worldwide is measurably increasing. There a concomitant emphasis on emphasizing globally-relevant professions education. Through structured literature review, expert consensus recommendations, and contact with relevant professional organizations, we review the existing state of GH education US schools for which data were available. Several recommendations from societies have been developed, along renewed competencies health. The...

10.1186/1472-6920-13-3 article EN cc-by BMC Medical Education 2013-01-18

Coliform colonies from children whose stools were submitted for microbiologic analysis studied prospectively to determine the frequency of shedding enteropathogenic Escherichia coli (EPEC). In total, 2225 isolates 445 patients probed with {iaeaeA} (encoding intimin) and EAF (EPEC adherence factor) probe, actin-aggregating phenotypes determined. Twenty-five (5.6%) shed non-O157:H7 eaeA+ EAF−E. coli. Of these 25 patients, 5 produced Shiga toxins 3 possessed bfpA bundle-forming pilus)...

10.1086/516470 article EN The Journal of Infectious Diseases 1997-06-01

OBJECTIVE: To assess exposure to global health (GH) training, future plans work or volunteer abroad, and the importance of GH training in program selection among graduating pediatric residents. METHODS: A national, random sample residents was surveyed 2008 American Academy Pediatrics' Annual Graduating Residents Survey. Questions specific were included. RESULTS: The adjusted survey response rate 59% (546 927); 534 from 170 programs responded at least 1 question. an essential/very important...

10.1542/peds.2011-0129 article EN PEDIATRICS 2011-09-13

Dihydropyridine-sensitive Ca2+ channels exist in many different types of cells and are believed to be regulated by various protein phosphorylation dephosphorylation reactions. The present study concerns the a putative component dihydropyridine-sensitive calcium phospholipid-dependent kinase, kinase C. A skeletal muscle peptide 165 kDa, which is known contain receptors for dihydropyridines, phenylalkylamines, other channel effectors, was found an efficient substrate C when phosphorylated its...

10.1016/s0021-9258(19)77841-7 article EN cc-by Journal of Biological Chemistry 1988-11-01

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMultiple phosphorylation sites in the 165-Kilodalton peptide associated with dihydropyridine-sensitive calcium channelsCliff M. O'Callahan and Marlene HoseyCite this: Biochemistry 1988, 27, 16, 6071–6077Publication Date (Print):August 1, 1988Publication History Published online1 May 2002Published inissue 1 August 1988https://pubs.acs.org/doi/10.1021/bi00416a036https://doi.org/10.1021/bi00416a036research-articleACS PublicationsRequest reuse...

10.1021/bi00416a036 article EN Biochemistry 1988-08-01

: media-1vid110.1542/5849572022001PEDS-VA_2018-1559Video Abstract BACKGROUND AND OBJECTIVES: Knowledge and skills related to global child health are increasingly recognized as important the practice of pediatrics. However, little is known about status trends in (GH) education US pediatric residency programs. Our aim was measure residents' exposure GH training, their assessments, career plans.We analyzed GH-focused questions from national American Academy Pediatrics surveys graduating...

10.1542/peds.2018-1559 article EN PEDIATRICS 2018-12-20

Thermoregulation remains a key physiological challenge faced by neonate after delivery. We assessed the prevalence, risk factors and outcomes of hypothermia in admitted neonates at tertiary teaching hospital Kigali city Rwanda.A cross-sectional study was conducted, from July 2013 to September 2017, who were neonatology unit University Teaching Hospital (CHUK) whose admission temperature recorded. Data extracted neonatal database (registry).The contained 1021 eligible which 15% outborn....

10.1080/14767058.2019.1671334 article EN The Journal of Maternal-Fetal & Neonatal Medicine 2019-10-15

Abstract Background: The development of pediatric intensive care units (PICUs) has contributed to the improvement in survival critically ill children; however, long-term functional outcome these children is often unknown many low-/middle-income countries including Rwanda. This study aimed describe incidence and type outcomes associated clinical characteristics among PICU survivors during a 5 years’ period (2015–2019). Subjects Methods: was single-center, prospective observational cohort...

10.4103/jpcc.jpcc_36_24 article EN cc-by-nc-sa JOURNAL OF PEDIATRIC CRITICAL CARE 2024-09-01

Background: Monitoring and evaluation is vital in the quest to improve quality of care reduce morbidity mortality neonates a resource-limited setting. Databases offer several advantages such as data on large cohorts from multiple centres. Aim: To establish minimal dataset neonatal database Kigali, Rwanda assess timing entry process. Secondary objectives were describe survival rates associated risk factors. Methods: A cross-sectional, observational study was undertaken at tertiary hospital...

10.1080/20469047.2019.1607056 article EN Paediatrics and International Child Health 2019-05-13

The number of muscarinic cholinergic receptors detected with [3H]quinuclidinyl benzilate (QNB) was constant in embryonic chick heart membranes but increased 2.5-fold by 3 days posthatching; the KD for [3H]QNB did not change. affinities agonists, as determined vitro competition experiments, differed during development. IC50 values were lowest 10- to 14-day receptors, intermediate 18- 20-day and highest 3- 7-day newborn receptors. These apparent differences agonist affinity overcome guanine...

10.1016/s0022-3565(25)20917-x article EN Journal of Pharmacology and Experimental Therapeutics 1985-03-01

BACKGROUND AND OBJECTIVES: Little is known about the effect of circumcision on breastfeeding in hours and days after procedure. Factors with potential to negatively impact success newborn period may result higher rates jaundice requiring phototherapy formula supplementation, both which can potentially extend length initial hospitalization. Our objective was determine exclusive breastfeeding, neonatal phototherapy, stay at hospital discharge immediately birth. METHODS: Term male infants whose...

10.1542/hpeds.2019-0270 article EN Hospital Pediatrics 2020-06-01

Rwanda is the only African country to use pediatric International In-Training Examination (I-ITE). The objectives of this study were scores from I-ITE outline baseline level knowledge Rwandan residents entering residency and trends in acquisition 2012 2018, during Human Resources for Health (HRH) Program, an education partnership between Ministry a consortium US universities. A retrospective descriptive analysis exam scores, taken by all five six academic years period. Individual resident...

10.1186/s12909-019-1617-8 article EN cc-by BMC Medical Education 2019-06-17

<h3>Aims</h3> This study aimed to assess the prevalence of hypothermia, risk factors and outcomes in admitted neonates at Neonatology Unit a tertiary teaching hospital Rwanda. <h3>Methods</h3> A prospective, cross-sectional was performed. Hypothermia defined, as per WHO, an admission temperature &lt;36.5°C. Data taken from Rwanda Neonatal database (RNDB) July 2013 until September 2017. <h3>Results</h3> 1021 infants were included analysis. found 280 (27%). Multivariate analysis identified...

10.1136/archdischild-2019-rcpch.256 article EN 2019-05-01

<h3>Aims</h3> To outline knowledge acquisition by Rwandan pediatric residents, using the International In-Training Examination (I-ITE), during Human Resources for Health (HRH) Program from 2012–2018. <h3>Methodology</h3> Retrospective descriptive analysis. All residents took I-ITE five of six academic years study period. Individual resident scores were weighted nine other global sites to minimise confounding annual variations in exam difficulty. <h3>Results</h3> 84 a total 213 exams (Table...

10.1136/archdischild-2019-rcpch.268 article EN 2019-05-01

Introduction: small for gestational age (SGA) is defined as birth weight less than the 10th percentile with a population prevalence of 17% in sub-Saharan Africa. Mortality and morbidity are worse SGA neonates there long term implications from fetal growth restriction. Objective: goal this study was to evaluate report case-load, associated characteristics outcomes admitted at largest tertiary public hospital Kigali, Rwanda.

10.11604/pamj-cm.2019.1.64.20828 article EN cc-by PAMJ Clinical Medicine 2019-01-01
Coming Soon ...