Search

Blue jack mackerel, Trachurus picturatus, is the fifth most landed fish species in mainland Portugal, but information on its reproductive biology is scarce. From September 2018 to August 2019, 626 specimens were collected from commercial vessels to clarify the reproductive strategy of the T. picturatus population off the west coast of Portugal. The proportion and length range of males and females were similar. Only three of the specimens collected were categorized as immature, indicating that the fish caught in the fishery are primarily mature. The spawning season lasted from late January until the end of March, with gonadosomatic indices being similar for males and females. Fecundity was indeterminate, and estimated batch fecundity ranged between 6,798 (at 25.4 cm TL) and 302,358 oocytes (at 33.8 cm TL). The low number of females showing direct evidence of imminent or recent spawning suggests a low number of spawning events. In addition, 12.7% of females were considered non-reproductive due to ovary abnormalities including parasitic infection by Kudoa species, atretic structures and skipped spawning events. This study highlights the importance of accounting for skipped spawning events and ovary abnormalities in the management of species fisheries.

Background: Horneru00b4s syndrome is rarely observed in epidural anesthesia; it is characterized by ptosis, miosis and conjunctival hyperaemia in the affected eye1. The incidence of Horneru00b4s syndrome with epidural anesthesia can reach 0.4-2.5% in labor analgesia and 4% in Cesarean sections2. In the obstetric anesthesiau2019s department of Centro Hospitalar de Lisboa Ocidental were detected 5 cases of Horneru00b4s syndrome until the end of November 2015.Case Report: Parturientsu2019 ages ranged from 18 to 36 years old, all of them classified as ASA II. Only one of them had previous history of Horneru00b4s syndrome in an epidural analgesia. Four of them developed ptosis with conjunctival hyperemia after analgesic dose with 10 to 15 ml of levobupivacaine 0.25% or ropivacaine 0.2% associated with sufentanil. The fifth parturient developed the same symptoms after anesthetic dose with ropivacaine 0.75%. The mean time of onset of Horneru00b4s syndrome was 20 to 45 minutes after epidural injection and the mean time of resolution of all symptoms was 1 to 6 hours. The onset of symptoms was unpredictable; in three cases these occurred after the first administration of local anesthetic in the epidural space, in other case it happened only after the fourth administration and in the last case it occurred after the second administration. In one case of labor analgesia, the parturient developed trigeminal nerve palsy, paresthesia and mild weakness on the right upper limb. This was believed to be the result of subdural migration of the epidural catheter.Discussion: In our obstetric anesthesiau2019s department we have noticed 5 cases of Horneru00b4s syndrome in 1579 epidural techniques performed, thus corresponding to a low incidence of 0.3%. Because the onset of symptoms is unpredictable, it is up to the anesthesiologist to decide whether to use or not the epidural catheter again, always taking into account the risks versus benefits for each patient.Learning points: Most of the reported cases of Horneru00b4s syndrome in pregnant women were after epidural analgesia or anesthesia for labor. This is explained by the anatomical and physiological changes during pregnancy and labor which will favor cephalic spread of local anesthetics3. Early diagnosis prevents the anxiety of the parturient and it is essential for the prevention of more serious complications1.References: 1-Turk J Anaesth Reanim 2015;43:196-8; 2-Indian J Ophthalmol.2011 Sep-Oct;59(5):389-391; 3-M.E.J.ANESTH 20(5),2010,727-729

Aquaporins (AQP) are water channel proteins and the genes coding for AQP2, AQP5, and AQP6 are clustered in 12q13. Since AQP5 is expressed in serous acinar cells of salivary glands, we investigated its involvement in caries. DNA samples from 1,383 individuals from six groups were studied. Genotypes of eight single nucleotide polymorphisms covering the aquaporin locus were tested for association with caries experience. Interaction with genes involved in enamel formation was tested. The association between enamel microhardness at baseline, after creation of artificial caries lesion, and after exposure to fluoride and the genetic markers in AQP5 was tested. Finally, AQP5 expression in human whole saliva, after exposure to fluoride in a mammary gland cell line, which is known to express AQP5, and in Wistar rats was also verified. Nominal associations were found between caries experience and markers in the AQP5 locus. Since these associations suggested that AQP5 may be inhibited by levels of fluoride in the drinking water that cause fluorosis, we showed that fluoride levels above optimal levels change AQP5 expression in humans, cell lines, and rats. We have shown that AQP5 is involved in the pathogenesis of caries and likely interacts with fluoride. © 2015 Anjomshoaa et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Foram utilizadas três vacas não lactantes fistuladas no rúmen com o objetivo de determinar os parâmetros de degradação ruminal in situ da matéria seca (MS) e do amido de grãos de sorgo sob diferentes formas de processamento: 1) Seco e moído (2mm); 2) Seco, moído (3mm), reidratado com aspersão de água sobre o material, e imediatamente ensilado por 30 dias; 3) Seco, inteiro, reidratado por três dias em tubo PVC e, em seguida, moído a 5mm; 4) Seco, inteiro, reidratado por três dias em tubo PVC com aplicação de ar comprimido e, em seguida, moído a 5mm; 5) Seco, inteiro, reidratado por três dias em tubo PVC e, em seguida, moído a 5mm, e ensilado por 30 dias; 6) Seco, inteiro, reidratado por três dias em tubo PVC com aplicação de ar comprimido, moído a 5mm e ensilado por 30 dias. Os teores de proteína bruta, amido, e fibra em detergente neutro (% da MS) variaram de 9,8 a 10,8%; 59,5 a 67,5%; e de 16,1 a 19,3%, respectivamente. Os teores de umidade nos grãos que foram reidratados variaram de 35,8 a 43,9% da MS. A taxa e a extensão de degradação do amido e a degradabilidade potencial da MS foram semelhantes (P>0,05) entre tratamentos. Os grãos de sorgo reidratados com aplicação de ar comprimido, moídos e ensilados (tratamento 6) apresentaram degradabilidade efetiva (DE) da MS e DE do amido sob taxa de passagem ruminal de 2%/h, semelhantes (P>0,05) às observadas para o tratamento 5 (sem aplicação de ar comprimido), e superiores (P0.05) between treatments. The grain sorghum rehydrated with application of compressed air, ground and ensiled (treatment 6), showed effective degradability (ED) of DM, and DE starch under ruminal passage rate of 2%/h, similar (P>0.05 ) those observed for treating 5 (without application of compressed air) and higher (P

There is evidence for a genetic component in caries susceptibility, but the disease is greatly influenced by environmental factors, which are extremely difficult to control in humans. For the present study, we used DNA samples collected from 110 unrelated, non-cleft individuals older than 12 years of age from Tiquisate, Guatemala: a population with similar cultural, dietary and hygiene habits, similar access to the dentist and fluoride exposure. Forty-four individuals were designated 'very low caries experience' (DMFTor = 2), and 66 were designated 'higher caries experience' (DMFTor = 3). Single-nucleotide polymorphism markers were genotyped in selected candidate genes (ameloblastin, amelogenin, enamelin, tuftelin-1, and tuftelin interacting protein 11) that influence enamel formation. Having at least one copy of the rare amelogenin marker allele was associated with increased age-adjusted caries experience. This association was stronger in individuals with higher DMFT (DMFTor = 20; p = 0.0000001). Our results suggest that variation in amelogenin may contribute to caries susceptibility in the population studied. The approach of comparing individuals with extremely distinct caries experiences could be valuable for decreasing the potential influence of environmental factors on genetic studies of caries.