Jacob ARANDA

Jacob ARANDA


Research Focus & Metrics

Academic Career Length

46Years (1981-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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27 September 2010 in The Journal of Maternal-Fetal & Neonatal Medicine
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Journal Article
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Jacob ARANDAJacob ARANDA
Jacob ARANDA
KBKay Beharry
Kay Beharry
GVGloria B. Valencia
Gloria B. Valencia
GNGirija Natarajan
Girija Natarajan
JDJonathan Davis
Jonathan Davis
Caffeine is a silver bullet in neonatology. This ubiquitous trimethylxanthine, pervasively used in the human diet and beverages, significantly impacts on major acute neonatal morbidities including apnea of prematurity, bronchopulmonary dysplasia, patent ductus arteriousus with or without surgical ligation and post-operative apnea. Potential uses in respiratory distress syndrome as suggested by improved lung function in primate models is supported by the decreased time on mechanical ventilation and need for oxygen therapy. Improved later outcomes at 18 to 22 months include clinically significant decreases in cerebral palsy, cognitive impairment, and severe retinopathy of prematurity in those babies who received caffeine during the neonatal period compared to non-caffeine treated placebo neonates. Ongoing and future research studies focus on optimizing current dose regimens to determine whether benefits can be maximized while maintaining an impressive safety profile. Molecular pharmacologic studies focused on the molecular and the biochemical mechanisms underlying the protective effects of caffeine are also being done to optimize treatment regimes and to target potential molecular pathways leading to further decreases in acute and long term neonatal morbidities. Since its use in newborns three decades ago, caffeine is now one of the safest, most cost-beneficial and effective therapies in the newborn.

1 December 2020 in Seminars in Fetal and Neonatal Medicine
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Journal Article
Closed access
Jacob ARANDAJacob ARANDA
Jacob ARANDA
KBKay D. Beharry
Kay D. Beharry

8 March 2015 in BMC Pediatrics
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Journal Article
Open access
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TSThe TEST-Apgar study-group
The TEST-Apgar study-group
MRMario Rüdiger
Mario Rüdiger
NBNicole Braun
Nicole Braun
Jacob ARANDAJacob ARANDA
Jacob ARANDA
MCMarta Aguar Carrascosa
Marta Aguar Carrascosa
HKHelmut Küster
Helmut Küster
Since an objective description is essential to determine infant’s postnatal condition and efficacy of interventions, two scores were suggested in the past but weren’t tested yet: The Specified-Apgar uses the 5 items of the conventional Apgar score; however describes the condition regardless of gestational age (GA) or resuscitative interventions. The Expanded-Apgar measures interventions needed to achieve this condition. We hypothesized that the combination of both (Combined-Apgar) describes postnatal condition of preterm infants better than either of the scores alone. Scores were assessed in preterm infants below 32 completed weeks of gestation. Data were prospectively collected in 20 NICU in 12 countries. Prediction of poor outcome (death, severe/moderate BPD, IVH, CPL and ROP) was used as a surrogate parameter to compare the scores. To compare predictive value the AUC for the ROC was calculated. Of 2150 eligible newborns, data on 1855 infants with a mean GA of 286/7 ± 23/7 weeks were analyzed. At 1 minute, the Combined-Apgar was significantly better in predicting poor outcome than the Specified- or Expanded-Apgar alone. Of infants with a very low score at 5 or 10 minutes 81% or 100% had a poor outcome, respectively. In these infants the relative risk (RR) for perinatal mortality was 24.93 (13.16-47.20) and 31.34 (15.91-61.71), respectively. The Combined-Apgar allows a more appropriate description of infant’s condition under conditions of modern neonatal care. It should be used as a tool for better comparison of group of infants and postnatal interventions. clinicaltrials.gov Protocol Registration System ( NCT00623038 ). Registered 14 February 2008.

10 October 2023 in Microorganisms
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Journal Article
Open access
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KBKay D. Beharry
Kay D. Beharry
MLMagdalena Latkowska
Magdalena Latkowska
AVArwin Macairan Valencia
Arwin Macairan Valencia
AAAhreen Allana
Ahreen Allana
JSJatnna Soto
Jatnna Soto
Jacob ARANDAJacob ARANDA
Jacob ARANDA
Maturational changes in the gut start in utero and rapidly progress after birth, with some functions becoming fully developed several months or years post birth including the acquisition of a full gut microbiome, which is made up of trillions of bacteria of thousands of species. Many factors influence the normal development of the neonatal and infantile microbiome, resulting in dysbiosis, which is associated with various interventions used for neonatal morbidities and survival. Extremely low gestational age neonates (<28 weeks’ gestation) frequently experience recurring arterial oxygen desaturations, or apneas, during the first few weeks of life. Apnea, or the cessation of breathing lasting 15–20 s or more, occurs due to immature respiratory control and is commonly associated with intermittent hypoxia (IH). Chronic IH induces oxygen radical diseases of the neonate, including necrotizing enterocolitis (NEC), the most common and devastating gastrointestinal disease in preterm infants. NEC is associated with an immature intestinal structure and function and involves dysbiosis of the gut microbiome, inflammation, and necrosis of the intestinal mucosal layer. This review describes the factors that influence the neonatal gut microbiome and dysbiosis, which predispose preterm infants to NEC. Current and future management and therapies, including the avoidance of dysbiosis, the use of a human milk diet, probiotics, prebiotics, synbiotics, restricted antibiotics, and fecal transplantation, for the prevention of NEC and the promotion of a healthy gut microbiome are also reviewed. Interventions directed at boosting endogenous and/or exogenous antioxidant supplementation may not only help with prevention, but may also lessen the severity or shorten the course of the disease.

1 December 2017 in Pediatric Clinics of North America
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Journal Article
Closed access
Jacob ARANDAJacob ARANDA
Jacob ARANDA
FSFabrizio Salomone
Fabrizio Salomone
GVGloria B. Valencia
Gloria B. Valencia
KBKay D. Beharry
Kay D. Beharry

16 December 2017 in Antioxidants
Verified
Journal Article
Open access
PDF file
KBKay D. Beharry
Kay D. Beharry
CCCharles L. Cai
Charles L. Cai
MHMichael M. Henry
Michael M. Henry
SCSara Chowdhury
Sara Chowdhury
GVGloria B. Valencia
Gloria B. Valencia
Jacob ARANDAJacob ARANDA
Jacob ARANDA
Neonatal intermittent hypoxia (IH) increases the risk for many morbidities in extremely low birth weight/gestational age (ELBW/ELGA) neonates with compromised antioxidant systems and poor growth. We hypothesized that supplementation with coenzyme Q10 (CoQ10, ubiquinol) or n-3 polyunsaturated fatty acids (PUFAs) during neonatal IH improves antioxidant profiles and somatic growth in neonatal rats. Newborn rats were exposed to two IH paradigms at birth (P0): (1) 50% O2 with brief hypoxic episodes (12% O2); or (2) room air (RA) with brief hypoxia, until P14 during which they received daily oral CoQ10 in olive oil, n-3 PUFAs in fish oil, or olive oil only from P0 to P14. Pups were studied at P14 or placed in RA until P21 for recovery from IH (IHR). Body weight and length; organ weights; and serum antioxidants and growth factors were determined at P14 and P21. Neonatal IH resulted in sustained reductions in somatic growth, an effect that was reversed with n-3 PUFAs. Improved growth was associated with higher serum growth factors. CoQ10 decreased superoxide dismutase (SOD) and glutathione, but increased catalase, suggesting reduced oxidative stress. Further studies are needed to determine the synergistic effects of CoQ10 and n-3 PUFA co-administration for the prevention of IH-induced oxidative stress and postnatal growth deficits.