The extraordinary organoleptic qualities of Iberian ham derive from the singular producing pig breed and traditional rearing conditions, both which define its lipid content composition. In this work 1H NMR spectroscopy is used for first time to analyse profile hams as determinant quality. Quantification fatty acids readily obtained spectra, with monounsaturated standing out, especially in higher quality hams. Unprecedently, triacylglyceride hydrolysis products formed during curing process...

Serotonin, one of the most important neurotransmitters in central nervous system, is synthesized by amino acid, tryptophan. Given that this essential acid consumed diet, aim study was to evaluate effect orally administered L-tryptophan (125 mg/kg) on circadian variations levels serotonin brain and plasma. We used male Wistar rats 14 +/- 2 weeks age (n = 240), maintained under conditions a 12-hr light:dark cycle, food water ad libitum. Tryptophan administration gavage daily single dose at 7...

Abstract Introduction Poor ovarian reserve (POI) is one of the main factors that affect women with fertility problems. In this study, we tested whether making small incisions in cortex leads to changes biomechanics ovary could result reactivation functionality and folliculogenesis. Methods Given its similarity female reproductive system, both anatomically physiologically, used 5-year-old sheep (n=3) as an animal model. Incisions were made ovaries (OD) by laparoscopy, other left control (OC)....

El siglo XXI, demanda de una constante atención a la innovación debido necesidad que las mismas tecnologías imponen en todos los campos del saber humano, uno estos, son prácticas pedagógicas, cuales, deben asumir connotación renovación constante, para adaptarse exigencias actuales con base formación integral estudiantes. En razón lo expuesto, el presente artículo tipo ensayo argumentativo, tiene como objetivo general: Analizar pedagógicas innovadoras, partir potencial creativo docente se...

Melatonin exerts oncostatic effects on different kinds of neoplasias, especially estrogen-dependent mammary tumors. Current knowledge about the mechanisms by which melatonin inhibits growth breast cancer cells point to an interaction with estrogen-responsive pathways. The intratumoral production estrogens in carcinoma tissue plays a pivotal role proliferation tumoral and its blockade is one main objectives treatment cancer. aim present work centered study control some enzymes involved...

Abstract: Cadmium (Cd) is a heavy metal classified as human carcinogen. Occupational exposure, dietary consumption and cigarette smoking are sources of Cd contamination. Cd‐induced carcinogenicity depends on its oxidative estrogenic actions. A possible role in breast cancer etiology has been recently suggested. Melatonin, because antioxidant antiestrogenic properties could counteract the toxic effects this metalloestrogen. Our aim was both to determine relevant doses mice mammary glands...

AbstractThe present study evaluated whether the administration of cereals enriched with nutrients that are facilitators sleep could help improve infants who had disorders at night time. Thirty aged 8–16 months involving least three nocturnal waking episodes took part in study. They were given a night-time 'sleep facilitating cereal' product containing 225 mg tryptophan, 5.3 adenosine-5′-P, and 6.3 uridine-5′-P per 100 g product. These double-blind procedure lasting 5 weeks, ingestion cereal...

The most physiological processes that take place in the body have a circadian rhythm which is controlled by an internal biological clock located suprachiasmatic nucleus. indole melatonin synthesized pineal gland, acts to synchronize these rhythms, and also it released following rhythm. present study analyzed levels of over 24-hour period Wistar rats both basal control conditions after oral administration 125 mg/kg tryptophan, amino acid precursor this indole, for 7 days. plasma gland were...

Abstract Iberian ham is a high‐quality food that traditionally produced from black pigs are native to the Peninsula. The taste and texture of largely determined by its lipid content composition. In this work, low field 1 H‐NMR spectroscopy was used for first time analyze profile hams as determinant quality. quantification fatty acids (FAs) readily obtained integration spectral peaks. FA highly influenced diet pigs, with monounsaturated FAs being more prominent in acorn‐fed pigs. NMR data...

Our research group has previously studied the role of melatonin in immune system birds and mice, finding that incubation with both pharmacological physiological doses augmented activity phagocytes from these animals, this was lowered pinealectomized animals. Since is synthesized amino acid tryptophan, aim present work to determine whether administration tryptophan might affect plasma levels phagocytic peritoneal macrophages over course a circadian cycle. The study animals were 14-week-old...

We studied the influence of physical activity stress on circadian rhythms melatonin and corticosterone in 3-month old male Wistar rats. Every two hours for 24 h around clock, an animal from stressed group was first made to swim hours, then subjected a further ten minutes forced swimming using modification apparatus employed Porsolt test. The capacity resume after exhausting 2-hour measured by number movements that were additional 10-min period. Blood collected immediately trial, plasma...

The slow scientific development in Latin America recent decades has delayed the incorporation of laboratory animal experimentation; however, this situation started to change. Today, extraordinary progress is evident, which promoted introduction and increased use animals as an important tool for advancement biomedical sciences. In aftermath boom, need provide community with training guidance all aspects related experimentation arisen. It responsibility each country regulate practice, both...

The epidemiology of hepatitis B in female prostitutes was studied a cross-sectional survey 467 and 510 control prenatal clinic patients from Lima Iquitos, Peru. Prostitutes reported mean 8.8 +/- 6.7 years active prostitution 205 137 sexual contacts the month prior to study. Hepatitis surface antigen (HBsAg) found comparable percentages (1.7%) controls (0.8%; P = .305). In contrast, seropositivity for both antibody markers (HBsAg, anti-HBs, or anti-hepatitis core) significantly higher...

The
 intake of foods rich in tryptophan produces beneficial effects on sleep. majority children with neurological disorders like autistic spectrum disorder
 (ASD), cerebral palsy or attention deficit hyperactivity disorder (ADHD) have
 sleep problems. To evaluate the effect tryptophan-enriched cereal on
 disorders. Involving 7 ASD, 9
 and 6 ADHD. They carried a wrist actimeter
 to record activity. The second fourth week ingested control cereals
 at...

Summary Regarding the low number of embryos that reach blastocyst stage when cultured in vitro , this study aimed to evaluate effects quercetin on pre-implantation mouse ( Mus musculus ) obtained using fertilization, especially during passage from morula blastocyst. Furthermore, we studied whether also affected expression hypoxia-inducible factor 1α (HIF-1α). The culture medium for was supplemented with quercetin, long or short periods time, and then development potential, total cell number,...

Abstract Introduction Premature ovarian failure is one of the main problems presented by women with fertility problems. This pathology characterized a low reserve or presence quiescent follicles that for unknown reasons have not been activated and able to carry out their recruitment subsequent maturation. Recent studies suggest activation in state capable being rescued function as possible therapeutic route. Based on this hypothesis, objective our study was verify whether through surgical...