First Report of Heterodera zeae Koshy, Swarup & Sethi, 1971 (corn cyst Nematode) Infecting Corn (Zea mays) in Spain.

Heterodera zeae Koshy, Swarup & Sethi, 1971 (corn cyst nematode) is an important disease of corn in several areas of the world, including India, Nepal, Pakistan, Egypt, USA, Greece and Portugal (Subbotin et al., 2010). It is a sedentary semi-endoparasite feeding on corn roots and other Poaceae plants and has been associated with significant yield losses in corn (Subbotin et al., 2010). During autumn 2022 a plant-parasitic nematode survey performed in corn at central-western area of Spain (Talavera de la Reina, Toledo), revealed a commercial field with stunted plants. Nematodes were extracted from soil by centrifugal-flotation method (Coolen, 1979). Corn roots inspection detected infections by immature and mature cysts, and soil revealed also mature live cysts and second-stage juveniles (J2s) with a population density of 1010 eggs and J2s/500 cm3 soil (including eggs from cysts). J2s and cysts were processed to pure glycerine using De Grisse's (1969) method. DNA was isolated from single live fresh J2s specimens for amplifying and sequencing of cytochrome c oxidase subunit II (COII) mitochondrial region using the primer pair species-specific H.Gly-COIIF_inFOR/P116F-1R (Riepsamen et al., 2011); D2 and D3 expansion domains of the 28S rRNA were amplified using the D2A/D3B primers (De Ley et al. 1999); internal transcribed spacer (ITS) region using primers TW81/AB28 (Subbotin et al., 2001); and cytochrome c oxidase subunit 1 (COI) gene was amplified using the primers JB3/JB5 (Bowles et al., 1992). Brown cysts were lemon-shaped with a protruding vulval cone with fenestra ambifenestrate, bullae prominent below underbridge and characteristically arranged in finger-like bullae (Fig. 1). J2 with slightly offset lip region (3-5 annuli), stylet strong with rounded stylet knobs, lateral field with four lines, and tail short and tapering conically. Measurements of cysts (n=10) included body length 559 (432-688) µm, body width 450 (340-522) µm, fenestral length 40 (36-43) µm, semifenestral width 19 (17-21) µm, and vulval slit 40 (35-44) µm. J2 measurements (n=10) included body length 477 (420-536) µm, stylet length 21 (20-22) µm, tail length 51 (47-56) µm, and tail hyaline region 23 (20-26) µm. Morphology and morphometrics of cysts and J2, fit with original description and others from several countries (Subbotin et al., 2010). Two J2s individuals were sequenced for COII region (OQ509010-OQ509011) showing 97.1-98.1% similarity with H. zeae from USA (HM462012). Six almost identical 28S rRNA sequences from J2s (OQ449649-OQ449654) were 99.2-99.4% similar to 28S rRNA sequences of H. zeae from Greece, Afghanistan and USA (GU145612, JN583885, DQ328695). Four identical ITS DNA fragments from J2s (OQ449655-OQ449658) were 97.0-97.8% similar to ITS sequences of H. zeae from Greece, and China (GU145616, MW785771, OP692770). Finally, six COI sequences of 400 bp obtained for J2s (OQ449699-OQ449704) were under 87% similarity to several COI sequences of Heterodera spp. in NCBI, being a new molecular barcoding for identifying this species. On the basis of these results, the cyst nematodes isolated from the corn plants from the central-western area of Spain (Talavera de la Reina, Toledo) were confirmed as H. zeae and up to our knowledge it is the first report in Spain. This is a well-known pest of corn, causing important losses in this crop (Subbotin et al., 2010) and it was previously regulated as a quarantine nematode in the Mediterranean region (EPPO).

O sentido do envelhecer para o idoso dependente / The meaning of aging for the dependent elderly

Resumo O envelhecimento constitui um fenômeno demográfico e uma questão econômica, social, política, cultural e ética. O objetivo deste ensaio é refletir sobre o envelhecimento e o sentido da velhice no sistema capitalista, sob o paradoxo que contrapõe lucro e necessidades humanas. A investigação efetuada sinaliza que sobre a pessoa idosa, com perdas de capacidades e incapacidades, recaem altos índices de negligências públicas e privadas. Isso exige a implementação de políticas específicas para a velhice, devido ao aumento tendencial de uma categoria de idosos/as, os dependentes. Em geral, as políticas têm atuado no sentido de reforçar os dados colhidos numa pesquisa realizada em 2019, em 6 estados brasileiros e no Distrito Federal, junto a uma população de 446.101 idosos/as, na qual se constataram descasos e maus tratos, mesmo com os avanços na legislação brasileira em vigor. Tais fatos endossam a percepção de imagens desvalorizadoras da velhice e do fato de ser velho/a, fazendo-se urgente uma ética global sob a perspectiva do cuidado que resgate valores democráticos essenciais a uma velhice com sentido.

Abstract Aging is a demographic phenomenon and an economic, social, political, cultural and ethical issue. The aim of this essay is to reflect on aging and the meaning of old age in the capitalist system, under the paradox that opposes profit and human needs. The investigation carried out indicates that the elderly, with loss of capacities and disabilities, have high rates of public and private negligence. This requires the implementation of specific policies for old age, due to the trend increase of a category of elderly people: the dependent. In general, policies have acted to reinforce the data collected in a survey conducted in 2019, in 6 Brazilian states and the Federal District, among a population of 446,101 elderly people, in which disregard and abuse were found, even with the advances in current Brazilian legislation. Such facts endorse the perception of devaluing images of old age and the fact of being old, making global ethics urgent from the perspective of care that rescues essential democratic values to meaningful old age.

Plasma 3,3',5-Triiodo-L-thyronine [T3] level mirrors changes in tumor markers in two cases of metastatic cancer of the breast and pancreas treated with exogenous L-T3.

Preclinical studies have attributed 3,3',5-triiodo-L-thyronine (T3) a direct negative effect on tumor progression, as well as chemosensitizing, differentiating and immunomodulatory properties. On the other hand, L-thyroxine (T4), via a thyroid hormone receptor on plasma membrane integrin αvß3, promotes solid tumor growth and neoangiogenesis, therefore lowering endogenous T4 reduces tumor growth rate. We present the case of two patients with metastatic triple negative breast cancer and metastatic pancreatic cancer respectively, who benefit of the sole treatment with antithyroid drugs and exogenous administration of T3 (liothyronine). In these cases tumor growth was accompanied by T3 depletion in plasma, which may represent a novel marker for progression.

Unravelling the Biodiversity and Molecular Phylogeny of Needle Nematodes of the Genus Longidorus (Nematoda: Longidoridae) in Olive and a Description of Six New Species.

The genus Longidorus includes a remarkable group of invertebrate animals of the phylum Nematoda comprising polyphagous root-ectoparasites of numerous plants including several agricultural crops and trees. Damage is caused by direct feeding on root cells as well as by transmitting nepoviruses that cause disease on those crops. Thus, correct identification of Longidorus species is essential to establish appropriate control measures. We provide the first detailed information on the diversity and distribution of Longidorus species infesting wild and cultivated olive soils in a wide-region in southern Spain that included 159 locations from which 449 sampling sites were analyzed. The present study doubles the known biodiversity of Longidorus species identified in olives by including six new species (Longidorus indalus sp. nov., Longidorus macrodorus sp. nov., Longidorus onubensis sp. nov., Longidorus silvestris sp. nov., Longidorus vallensis sp. nov., and Longidorus wicuolea sp. nov.), two new records for wild and cultivate olives (L. alvegus and L. vineacola), and two additional new records for wild olive (L. intermedius and L. lusitanicus). We also found evidence of some geographic species associations to western (viz. L. alvegus, L. intermedius, L. lusitanicus, L. onubensis sp. nov., L. vineacola, L. vinearum, L. wicuolea sp. nov.) and eastern distributions (viz. L. indalus sp. nov.), while only L. magnus was detected in both areas. We developed a comparative study by considering morphological and morphometrical features together with molecular data from nuclear ribosomal RNA genes (D2-D3 expansion segments of 28S, ITS1, and partial 18S). Results of molecular and phylogenetic analyses confirmed the morphological hypotheses and allowed the delimitation and discrimination of six new species of the genus described herein and four known species. Phylogenetic analyses of Longidorus spp. based on three molecular markers resulted in a general consensus of these species groups, since lineages were maintained for the majority of species. This study represents the most complete phylogenetic analysis for Longidorus species to date.

[1st National Meeting of Multidisciplinary Work in Oncogeriatrics: expert consensus document]. / 1.(a) Reunión Nacional de Trabajo Multidisciplinar en Oncogeriatría: documento de consenso.

On 2nd of June 2011 the Institut Català d' Oncologia l'Hospitalet--Hospital Duran i Reynals hosted the first Meeting of Multidisciplinary Work in Oncogeriatrics. The reason for the meeting, which follows on from an initiative of the Medical Societies of Radiotherapy, Oncology, Geriatrics and Gerontology and Palliative Care and Medical Oncology, was to initiate a joint line of work among the different specialties that generally take part in the handling of the elderly patient suffering from oncologic pathologies. This document summarises the different subjects covered during the Meeting.