Vitamin C in premature and full-term human neonates

Redox Report ◽  
1996 ◽  
Vol 2 (4) ◽  
pp. 257-262 ◽  
Author(s):  
T. M. Berger ◽  
N. Rifai ◽  
M. E. Avery ◽  
B. Frei
Keyword(s):  
Vitamin C ◽  
Full Term ◽  
Human Neonates

CXCR5‐CXCL13 axis markers in full‐term and preterm human neonates in the first weeks of life

2021 ◽  
Author(s):  
Carlo Pietrasanta ◽  
Pasqualina De Leo ◽  
Tatiana Jofra ◽  
Andrea Ronchi ◽  
Lorenza Pugni ◽  
...  
Keyword(s):  
Full Term ◽  
Human Neonates

1125 Pharyngeal Provocation Induced Pharyngo-Esophageal and Cardio-Respiratory Rhythms in Dysphagic Human Neonates at Full Term Status

2016 ◽  
Vol 150 (4) ◽  
pp. S227
Author(s):  
Kathryn Hasenstab ◽  
Swetha Sitaram ◽  
Reza Shaker ◽  
Sudarshan Jadcherla
Keyword(s):  
Full Term ◽  
Respiratory Rhythms ◽  
Human Neonates

Role of Prenatal Position in Grasp-Reflex Asymmetry in Human Neonates

1994 ◽  
Vol 78 (1) ◽  
pp. 287-290 ◽  
Author(s):  
Uner Tan
Keyword(s):  
Hand Preference ◽  
Full Term ◽  
Left Hand ◽  
Right Hand ◽  
The Right ◽  
Human Neonates ◽  
Right And Left Hands

Grasp-reflex strengths were quantitatively measured from the right and left hands of 70 full-term human neonates. The right-left grasp-reflex linearly correlated with grasp-reflex only of the right hand in neonates with a right-ear-facing-out prenatal position. In neonates with left-ear-facing-out prenatal position, this grasp-reflex linearly increased with the grasp-reflex of the right hand and linearly decreased with the grasp reflex of the left hand. It was suggested that grasp-reflex asymmetry in neonates may, at least partly, depend upon prenatal position, which may also influence the later developing hand preference in humans.

scholarly journals TauG-Guidance Of Neonatal Vocalizing

2017 ◽  
Author(s):  
David N Lee ◽  
Mateo Obregon ◽  
Jonathan Delafield-Butt
Keyword(s):  
Experimental Evidence ◽  
High Precision ◽  
Temporal Pattern ◽  
Full Term ◽  
Theory Of Action ◽  
Mathematical Function ◽  
Term Neonates ◽  
Tau Theory ◽  
General Tau Theory ◽  
Human Neonates

AbstractA theory of action control (General Tau Theory) is applied to analyzing the vocalizations of human neonates. A central aspect of the theory, which is supported by experimental evidence across various actions and species, is that the trajectories of competent skilled actions follow a particular temporal pattern, which is described by the mathematical function, tauG. It was found that the acoustic waveform of vocalizations of healthy, full-term babies followed the tauG pattern with high precision. We conclude that healthy full-term neonates can be born with the ability to tauG-guide their vocalizations.

Striae Gravidarum, Vitamin C and Other Related Factors

2011 ◽  
Vol 81 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Rahime Bedir Findik ◽  
Nurcihan Karakurt Hascelik ◽  
Kadir Okhan Akin ◽  
Ayse Nurcan Unluer ◽  
Jale Karakaya
Keyword(s):  
Family History ◽  
Vitamin C ◽  
Pregnant Women ◽  
Smoking Status ◽  
Multiple Logistic Regression Analysis ◽  
Blood Levels ◽  
Significant Relation ◽  
Related Factors ◽  
Thigh Circumference ◽  
Striae Gravidarum

Background: Striae gravidarum, a clinical condition commonly seen in pregnant women, produces serious cosmetic problems and may lead to psychological problems. Aim: The present study investigated whether there was any relation between the presence of striae in primigravid pregnant women and blood vitamin C levels, and factors thought to contribute to the formation of striae such as family history, weight gained during pregnancy, smoking status, abdominal and thigh circumference, and age. Methods: Overall, 69 primigravid women attending routine antenatal follow-up and, using prophylactic iron and vitamin preparations, underwent investigation. All were pregnant 36 or more weeks. Scoring was based on striae examination and whether striae were present. The relation between the presence of striae, vitamin C blood levels, and other factors was investigated. Results and Conclusions: Multiple logistic regression analysis showed a significant relation between the presence of striae and blood vitamin C levels (p = 0.046) and between the presence of striae and family history (p = 0.023). No significant relation was found between the presence of striae and age, weight gained during pregnancy, abdominal and thigh circumference, or smoking status. It was concluded that further, more comprehensive studies on the issue are required.

The Relationship Between Antioxidant Nutrient Intake and Cataracts in Older People

2006 ◽  
Vol 76 (6) ◽  
pp. 359-366 ◽  
Author(s):  
Rodríguez-Rodríguez ◽  
Ortega ◽  
López-Sobaler ◽  
Aparicio ◽  
Bermejo ◽  
...  
Keyword(s):  
Vitamin C ◽  
Older People ◽  
Dietary Intake ◽  
Protective Effect ◽  
Elderly People ◽  
Nutrient Intake ◽  
Institutionalized Elderly ◽  
Weighing Method ◽  
The Relationship

This study investigated the relationship between the intake of antioxidant nutrients and the suffering of cataracts in 177 institutionalized elderly people (61 men and 116 women) aged ≥ 65 years. Dietary intake was monitored for 7 consecutive days using a "precise individual weighing" method. Subjects, who during their earlier years were exposed by their work to sunlight, had a greater risk of suffering cataracts (OR = 3.2; Cl: 1.1–9.3, P < 0.05) than those who worked indoors. A relationship was found between increased vitamin C intake and a reduced prevalence of cataracts (i.e., when comparing those above P95 for vitamin C intake with those below P5; (OR = 0.08; Cl: 0.01–0.75, P 0.05). Among subjects with cataracts, 12.1% had vitamin C intakes of < 61 mg/day (P10) and only 2.2% had intakes of > 183 mg/day (P95) (p < 0.01). Subjects who consumed > 3290 μg/day (P95) of lutein were less likely to have cataracts (OR = 0.086; Cl: 0.007–1.084; p < 0.05) than those whose consumption was < 256 μg/day (P5). In men, high intakes of zeaxanthin seemed to provide a protective effect against the problem (OR = 0.96; Cl: 0.91–0.99; p < 0.05). The results suggest an association exists between exposure to sunlight and the development of cataracts, and that vitamin C, lutein, and zeaxanthin offer some protection against this disorder.

Liver Histological Improvement After Administration of High-Dose Vitamin C in Guinea Pig with Nonalcoholic Steatohepatitis

2018 ◽  
Vol 88 (5-6) ◽  
pp. 263-269
Author(s):  
Seong-Hoon Park ◽  
A Lum Han ◽  
Na-Hyung Kim ◽  
Sae-Ron Shin
Keyword(s):  
Liver Biopsy ◽  
Vitamin C ◽  
Nonalcoholic Steatohepatitis ◽  
Guinea Pigs ◽  
Normal Diet ◽  
High Dose ◽  
Biochemical Tests ◽  
Deficient Diet ◽  
Histological Improvement ◽  
Vit C

Abstract. Background: Vitamin C is a strong antioxidant, and the health effects of vitamin C megadoses have not been validated despite the apparent health benefits. Therefore, the present study sought to confirm the effects of vitamin C megadoses. Materials and Methods : Four groups of six guinea pigs were used. Each group was fed one of the following diets for three weeks: normal diet, methionine choline-deficient diet, methionine choline-deficient diet + vitamin C megadose (MCD + vit C 2.5 g/kg/day), and methionine-choline deficient diet + ursodeoxycholic acid (MCD + UDCA 30 mg/kg/day). The MCD diet was given to induce nonalcoholic steatohepatitis, and UDCA was used to treat nonalcoholic steatohepatitis. Three weeks after initial diet administration, the results of biochemical tests and liver biopsy were compared between the groups. Results: The cytoplasm state was similar in the MCD + vit C and MCD + UDCA groups, exhibiting clearing of the cytoplasm and ballooning degeneration. However, macrovesicular steatosis was not observed in the MCD + vit C group. Aspartate transaminase and alanine transaminase were elevated significantly following vitamin C administration. Conclusions: The present study confirmed that alone vitamin C megadoses are potential remedies for nonalcoholic steatohepatitis, based on the liver biopsy results of guinea pigs that were unable to synthesize vitamin C.

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