Results 101 to 110 of about 191,019 (230)

The pineal gland and chronobiologic history: mind and spirit as feedsidewards in time structures for prehabilitation

open access: yes, 2001
Not only circadian rhythms — recurring patterns with a period of about 24 h (in the range of 20-28 h) — but also ultradian and infradian rhythms (with periods shorter than 20 h and longer than 28 h, respectively), characterize melatonin in humans ...
Roberto Tarquini   +19 more
core   +1 more source

Cancer Risk in Marfan Syndrome: A Swedish Population‐Based Cohort Study

open access: yesInternational Journal of Cancer, Volume 159, Issue 7, Page 1707-1714, 1 October 2026.
The cancer risk in Marfan syndrome, an autosomal dominant connective tissue disorder, largely remains to be explored. In this population‐based matched cohort study of 1544 Swedish patients, the overall cancer risk in adults with Marfan syndrome showed no significant increase, except for the risk of endocrine tumours with a nearly threefold increase ...
Ida Nordgren   +8 more
wiley   +1 more source

The Expression of α-Internexin and Peripherin in the Developing Mouse Pineal Gland

open access: yes, 2008
The mammalian pineal gland contains pinealocytes, interstitial glial cells, perivascular macrophages, neurons and neuron-like cells. The neuronal identity of neurons and neuron-like cells was an enigma.
盧國賢;錢宗良   +1 more
core  

Pharmacokinetics of Intravenous Melatonin in Preschool‐Aged Pediatric Surgical Patients

open access: yesPediatric Anesthesia, Volume 36, Issue 10, Page 1308-1315, October 2026.
ABSTRACT Background Melatonin may have several beneficial clinical effects in the perioperative setting. In children, it has been studied for preoperative anxiety, postoperative pain, and emergence delirium. Melatonin's pharmacokinetic profile is well‐known in adults, but data in young children are sparse.
Anne Louise de Barros Garioud   +4 more
wiley   +1 more source

In silico genome wide mining of conserved and novel miRNAs in the brain and pineal gland of Danio rerio using small RNA sequencing data

open access: yesGenomics Data, 2016
MicroRNAs (miRNAs) are small, non-coding RNA molecules that bind to the mRNA of the target genes and regulate the expression of the gene at the post-transcriptional level. Zebrafish is an economically important freshwater fish species globally considered
Suyash Agarwal   +6 more
doaj   +1 more source

Circadian expression of Bmal1 in chicken retina, pineal gland, and peripheral tissues

open access: yes, 2003
Purpose: Circadian rhythms are generated in pacemaker cells and are entrained by environmental cues such as the light:dark (LD) cycle. The chicken retina and pineal gland contain endogenous clocks that govern the rhythmic synthesis of melatonin.
Chaurasia, S.S.   +4 more
core  

Incidence of Gonadal and Extragonadal Germ Cell Tumours in Patients With Klinefelter Syndrome

open access: yesAndrology, Volume 14, Issue 7, Page 2274-2279, October 2026.
ABSTRACT Background Klinefelter's syndrome (KS; 47, XXY) is associated with an altered risk profile for malignancies compared with non‐KS males. In particular, several reports have noted a striking association between KS and extragonadal germ cell tumours (EGCTs), especially in the mediastinum, whereas the risk of testicular germ cell tumours (TGCTs ...
Aksh Tailor   +6 more
wiley   +1 more source

Sleep Duration and Sun Exposure in Portuguese Children: Associations With Obesity Indicators

open access: yesAmerican Journal of Human Biology, Volume 38, Issue 9, September 2026.
Overview of the study design and main findings on the associations among sun exposure, sleep duration, and obesity indicators in Portuguese children. ABSTRACT Introduction Sleep duration, sun exposure, and obesity are important and potentially interconnected factors in child health.
Elizabete A. dos Santos   +5 more
wiley   +1 more source

Chronic Paraquat Neurotoxicity and Dopaminergic Degeneration: A Mechanistic Review

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
Occurrence of Parkinson's disease (PD) based on several neurotoxins. Advanced and comprehensive mechanisms based on Paraquat‐induced PD. Mechanism of oxidative stress, ROS and RNS formation, and death of dopaminergic neurons. The modulation of genes and proteins by paraquat leads to Parkinsonism.
Saima Riaz   +5 more
wiley   +1 more source

Melatonin synthesis pathway: circadian regulation of the genes encoding the key enzymes in the chicken pineal gland and retina

open access: yes, 1999
The mRNAs encoding three enzymes of the melatonin synthesis pathway (tryptophan hydroxylase (TPH), arylalkylamine-N-acetyltransferase (AANAT) and hydroxyindole-O-methyl-transferase (HIOMT)) are expressed with a day/night rhythm in the chicken pineal ...
Voisin, P.   +8 more
core  

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