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1.
Parasitol Int ; 86: 102473, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34600157

RESUMO

Despite the large number of species described to date for the onchoprotepcephalid genus Acanthobothrium (207), only 16 named species have a genetic sequence. With this background, specimens of adult cestodes of the stingray Hypanus longus were collected off San Blas, Nayarit, and onchoproteocephalid larvae in the carangid fish Trachinotus rhodopus from Puerto Ángel, Oaxaca, both located on the Pacific coast of Mexico. The objective of this work is to investigate the phylogenetic position of these adults and larvae using nuclear ribosomal markers (18S rDNA and 28S rDNA). Morphologically, adult specimens were identified as Acanthobothrium cleofanus; larvae were identified only to family level. The phylogenetic position of both taxa was investigated based on the information of two nuclear molecular markers analyzed under Parsimony (PA) and Bayesian Inference (BI) methods. The newly generated sequences of A. cleofanus from Nayarit are identical to the sequences of several samples of Acanthobothrium sp. collected in the Mexican Pacific, which sequence are available in GenBank; DNA sequences obtained from onchoproteocephalid larva clearly place this taxon within Acanthobothrium but representing an independent lineage. In the resulting phylogenetic trees, Uncibilocularis okei was found nested within Acanthobothrium with an unstable position depending on the optimality criteria, indicating the need for more molecular analyzes with a greater number of species of both genera prior to define its phylogenetic relationships.


Assuntos
Cestoides/classificação , Infecções por Cestoides/veterinária , Doenças dos Peixes/parasitologia , Rajidae , Animais , Cestoides/genética , Cestoides/crescimento & desenvolvimento , Infecções por Cestoides/parasitologia , Marcadores Genéticos , Larva/classificação , Larva/crescimento & desenvolvimento , México , Filogenia , RNA Ribossômico 18S/análise , RNA Ribossômico 28S/análise
2.
Parasitol Int ; 86: 102468, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34520840

RESUMO

Parastrigea brasiliana (Szidat, 1928) Dubois, 1964, was described from (Cochlearius cochlearius) in South America. The taxonomy of this species has been unstable due that it was described as a member of Strigea Abildgaard, 1790. However, the same author one year later transferred it to Apharyngostrigea Ciurea, 1927 and since then, it has been alternatively placed in the genus Apharyngostrigea or Parastrigea Szidat, 1928 from Strigeidae. In the current research, specimens identified as P. brasiliana were collected from type host in southeastern Mexico. We sequenced three molecular markers: the internal transcribed spacers ITS1 and ITS2 including the 5.8S gene (ITS region), the D1-D3 domains of the large subunit (LSU) from nuclear DNA and cytochrome c oxidase subunit I (cox 1) from mitochondrial DNA. These sequences were aligned with other sequences available in the GenBank dataset from Strigeidae. Maximum likelihood and Bayesian analyses inferred with three molecular markers consistently showed that P. brasiliana is not closely related to other members of the genus Parastrigea and are placed in a reciprocal monophyletic clade inside Apharyngostrigea, with very low genetic divergence, varying from 0 to 0.09% for the ITS, from 0 to 0.08% for the LSU and from 0.21 to 0.43% for cox 1. Consequently, we proposed to reallocate it to A. brasiliana. The phylogenetic analyses obtained are key and very useful for re-evaluate the morphology of A. brasiliana because this species share morphological characters with the genera Parastrigea (concentration of vitelline follicles distributed in two lateral expansions on the forebody) and Apharyngostrigea (absence of pharynx). Finally, the current record of A. brasiliana expands its distribution range in four countries, namely, the USA, Mexico, Venezuela and Brazil, in the Neotropical region.


Assuntos
Doenças das Aves/parasitologia , Aves , Trematódeos , Infecções por Trematódeos/veterinária , Animais , DNA de Helmintos/análise , DNA Mitocondrial/análise , Proteínas de Helminto/análise , México , Microscopia Eletrônica de Varredura/veterinária , Trematódeos/anatomia & histologia , Trematódeos/classificação , Trematódeos/genética , Trematódeos/ultraestrutura , Infecções por Trematódeos/parasitologia
3.
Multimedia | Recursos Multimídia | ID: multimedia-9317

RESUMO

Un vistazo a los primeros tres minutos de la versión española de nuestro nuevo documental, EL SUSTO.


Assuntos
Férias e Feriados , Morte , Documentários Cinematográficos , Homicídio , Diabetes Mellitus Tipo 2 , México
4.
Multimedia | Recursos Multimídia | ID: multimedia-9318

RESUMO

El primer trabajo documental de la directora Karen Akins exhibe la crisis de salud pública en México derivada del alto consumo de bebidas azucaradas y alimentos ultraprocesados.


Assuntos
Indústria de Bebidas Gaseificadas , Bebidas Adoçadas com Açúcar/efeitos adversos , Documentários Cinematográficos , Diabetes Mellitus Tipo 2/mortalidade , México/epidemiologia
5.
Multimedia | Recursos Multimídia | ID: multimedia-9316

RESUMO

The Coca-Cola Effect: In Mexico, Coca Cola is more than just a brand. Its factories deplete water supplies for vast areas, whilst its products contribute to a burgeoning obesity epidemic. In one small Mexican village, residents are praying for rain. The ceremony appears traditional, apart from one element: a dozen or so bottles of Coca Cola. ”It’s seen as a sacred drink now", explains one resident. ”It allows you to purify your soul. That’s the power of Coca Cola.” Ironically, it is the presence of Coca Cola’s nearby factory that is partly to blame for the dearth in drinking water. The factory uses six litres of water for every litre of cola and draws it from the area’s dwindling groundwater supply. Now residents have to buy water from tankers. “I spend a quarter of my salary on getting water", says resident Rodolfo. In fact, it can be cheaper to drink solely Coca Cola: Mexico has become the biggest consumer of the soft drink in the world, to the detriment of the population’s health. The extent to which a single corporation can affect a nation is nowhere more pertinent than here.


Assuntos
Bebidas Adoçadas com Açúcar , Indústria de Bebidas Gaseificadas , Obesidade/epidemiologia , Recursos Naturais , Água Potável , Vulnerabilidade Social , Pobreza , Documentários Cinematográficos , México/epidemiologia
6.
Neurol India ; 69(5): 1363-1367, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34747814

RESUMO

Background: Friedreich's ataxia (FRDA) is caused by homozygous GAA repeat expansions or compound heterozygous (CH) mutations in FXN gene. Its broad clinical spectrum makes it difficult to identify, thus an accurate diagnosis can only be made by genetic testing. Objective: This study aims to present data on FXN variants observed in patients with sporadic or recessive ataxia, including detailed data of the first CH Mexican patients. Materials and Methods: One hundred and eight patients with recessive or sporadic cerebellar ataxia were referred to our institution between 2009 and 2019 for FXN molecular testing. This was achieved using a combined methodology of triplet repeat-primed PCR (polymerase chain reaction), long PCR, FXN sequencing and multiplex-ligation probe-amplification. Results: Eighteen patients had a homozygous FXN genotype; whereas five were CH patients with a slow progression and phenotypic variability, including a late-onset case with spastic paraparesis, and a Charcot-Marie-Tooth-like case. Conclusions: These first Mexican CH patients pose important implications for genetic counseling and FRDA management.


Assuntos
Ataxia de Friedreich , Proteínas de Ligação ao Ferro/genética , Ataxia de Friedreich/genética , Testes Genéticos , Humanos , México , Mutação , Repetições de Trinucleotídeos
7.
J Int AIDS Soc ; 24(11): e25836, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34762774

RESUMO

INTRODUCTION: Molecular surveillance systems could provide public health benefits to focus strategies to improve the HIV care continuum. Here, we infer the HIV genetic network of Mexico City in 2020, and identify actively growing clusters that could represent relevant targets for intervention. METHODS: All new diagnoses, referrals from other institutions, as well as persons returning to care, enrolling at the largest HIV clinic in Mexico City were invited to participate in the study. The network was inferred from HIV pol sequences, using pairwise genetic distance methods, with a locally hosted, secure version of the HIV-TRACE tool: Seguro HIV-TRACE. Socio-demographic, clinical and behavioural metadata were overlaid across the network to design focused prevention interventions. RESULTS: A total of 3168 HIV sequences from unique individuals were included. One thousand and one-hundred and fifty (36%) sequences formed 1361 links within 386 transmission clusters in the network. Cluster size varied from 2 to 14 (63% were dyads). After adjustment for covariates, lower age (adjusted odds ratio [aOR]: 0.37, p<0.001; >34 vs. <24 years), being a man who has sex with men (MSM) (aOR: 2.47, p = 0.004; MSM vs. cisgender women), having higher viral load (aOR: 1.28, p<0.001) and higher CD4+ T cell count (aOR: 1.80, p<0.001; ≥500 vs. <200 cells/mm3 ) remained associated with higher odds of clustering. Compared to MSM, cisgender women and heterosexual men had significantly lower education (none or any elementary: 59.1% and 54.2% vs. 16.6%, p<0.001) and socio-economic status (low income: 36.4% and 29.0% vs. 18.6%, p = 0.03) than MSM. We identified 10 (2.6%) clusters with constant growth, for prioritized intervention, that included intersecting sexual risk groups, highly connected nodes and bridge nodes between possible sub-clusters with high growth potential. CONCLUSIONS: HIV transmission in Mexico City is strongly driven by young MSM with higher education level and recent infection. Nevertheless, leveraging network inference, we identified actively growing clusters that could be prioritized for focused intervention with demographic and risk characteristics that do not necessarily reflect the ones observed in the overall clustering population. Further studies evaluating different models to predict growing clusters are warranted. Focused interventions will have to consider structural and risk disparities between the MSM and the heterosexual populations.


Assuntos
Infecções por HIV , Minorias Sexuais e de Gênero , Feminino , Redes Reguladoras de Genes , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Homossexualidade Masculina , Humanos , Masculino , México/epidemiologia
8.
Artigo em Inglês | MEDLINE | ID: mdl-34770158

RESUMO

Health effects related to exposure to air pollution such as ozone (O3) have been documented. The World Health Organization has recommended the use of the Sum of O3 Means Over 35 ppb (SOMO35) to perform Health Impact Assessments (HIA) for long-term exposure to O3. We estimated the avoidable mortality associated with long-term exposure to tropospheric O3 in 14 cities in Mexico using information for 2015. The economic valuation of avoidable deaths related to SOMO35 exposure was performed using the willingness to pay (WTP) and human capital (HC) approaches. We estimated that 627 deaths (95% uncertainty interval (UI): 227-1051) from respiratory diseases associated with the exposure to O3 would have been avoided in people over 30 years in the study area, which confirms the public health impacts of ambient air pollution. The avoidable deaths account for almost 1400 million USD under the WTP approach, whilst the HC method yielded a lost productivity estimate of 29.7 million USD due to premature deaths. Our findings represent the first evidence of the health impacts of O3 exposure in Mexico, using SOMO35 metrics.


Assuntos
Poluentes Atmosféricos , Poluição do Ar , Ozônio , Poluentes Atmosféricos/análise , Poluentes Atmosféricos/toxicidade , Poluição do Ar/análise , Poluição do Ar/estatística & dados numéricos , Exposição Ambiental , Humanos , México/epidemiologia , Ozônio/análise , Ozônio/toxicidade , Material Particulado/análise
9.
Zootaxa ; 4996(2): 201-252, 2021 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-34810533

RESUMO

A substantial number of changes to the composition of the herpetofauna of the Mexican state of Oaxaca, including taxonomic additions and deletions, have occurred in the five years since our original assessment of this region. These changes now establish a herpetofauna of 480 species for the state. A number of taxonomic and nomenclatural changes involving the Oaxacan herpetofauna also are discussed. Updated patterns of physiographic distribution, endemism, and conservation status of the members of the state herpetofauna are examined.


Assuntos
Filogenia , Anfíbios/classificação , Animais , México , Répteis/classificação
10.
Acta Chir Plast ; 63(3): 113-117, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34814692

RESUMO

BACKGROUND: Fingertips are the most commonly injured anatomical structures in the upper extremity. The aim of this work is to present our experience in the management of fingertip injuries. METHODS: All patients with fingertip injuries managed by Plastic and Reconstructive Surgery Division of Hospital General “Dr Manuel Gea Gonzalez” in Mexico from July 2010 to June 2015 were included; their demographic characteristics were described, as well as patterns of injury and management. RESULTS: A total of 1,265 patients were included in the study, 75% were males. The mean age of presentation was 20.5 ± 16.46 years; the age group most commonly affected was younger than 15 years (46.7%). Right and left-sided injuries were almost equally prevalent (51 vs. 49%). The most commonly injured fingers were the third (27.2%), and second (25.8%). Eighty-seven percent of the patients presented with single-digit injuries. Fingertip amputations were the most common type of injury with 620 cases (49%), followed by simple fingertip lacerations (574 cases, 45%), and nail bed injuries in 71 cases (5.6%). Surgical management was necessary in 95.8% of the cases. CONCLUSIONS: Fingertip injuries remain the most common reason for consultation in hand emergencies. A structured approach for their treatment is necessary to obtain the best clinical outcomes.


Assuntos
Traumatismos dos Dedos , Mãos , Adolescente , Adulto , Algoritmos , Criança , Pré-Escolar , Traumatismos dos Dedos/epidemiologia , Traumatismos dos Dedos/cirurgia , Mãos/cirurgia , Humanos , Masculino , México/epidemiologia , Encaminhamento e Consulta , Adulto Jovem
11.
Zootaxa ; 5027(3): 387-407, 2021 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-34811164

RESUMO

The Hydrophilus (Dibolocelus) Bedel species from Mexico and adjacent areas are treated on the basis of the study of 142 adult specimens and published data. Two new species are herein recognized and described: H. (D.) nucleoensis Arce-Prez Arriaga-Varela sp. nov. from Mexico, Guatemala and Nicaragua, H. (D.) pseudovatus Arce-Prez Arriaga-Varela sp. nov. from Mexico. Three already known species are re-described and their geographical distribution is updated, H. (D.) ovatus Gemminger Harold and H. (D.) pollens Sharp and H. (D.) violaceonitens Jacquelin du Val, a species resurrected as distinct to H. (D.) smaragdinus. Hydrophylus (D.) cf. purpurascens (Rgimbart) is also redescribed but their identity is questionable. The lectotype of H. (D.) pollens Sharp is designated. Within Mexico, the state with the highest known diversity is Veracruz with five species. A key to the species of Hydrophilus (Dibolocelus) from Mexico and Central America is provided.


Assuntos
Besouros , Distribuição Animal , Animais , México , Água
12.
Zootaxa ; 5005(3): 317-328, 2021 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-34811257

RESUMO

The genus Botanophila Lioy has several species distributed in North America, but none had been recorded from Mexico. Here we describe three new species of Botanophila from the highlands of the Mexican Transition Zone. We include images of habitus, drawings of the terminalia and a key to facilitate the identification of species. Remarkably, the male of the new species has dichoptic eyes, an unusual characteristic in Anthomyiidae.


Assuntos
Dípteros , Animais , Masculino , México
13.
Zootaxa ; 5005(3): 304-316, 2021 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-34811258

RESUMO

The genus Ambrysus Stl is a species-rich genus in which multiple species groups have been proposed, including the North American Ambrysus signoreti Stl complex. The new Mexican species Ambrysus altiplanus Reynoso n. sp., which belongs to the A. signoreti complex, is described and illustrated, bringing the total number of described species of Ambrysus to 67. Also, new state records are reported for three species of the same complex, two of which are endemic to Mexico.


Assuntos
Heterópteros , Distribuição Animal , Animais , México
14.
J Infect Dev Ctries ; 15(10): 1396-1403, 2021 10 31.
Artigo em Inglês | MEDLINE | ID: mdl-34780361

RESUMO

INTRODUCTION: Mortality rates associated with COVID-19 vary widely between countries and, within countries, between regions. These differences might be explained by population susceptibility, environmental factors, transmission dynamics, containment strategies, and diagnostic approaches. We aimed to analyze if obesity and diabetes prevalence are associated with higher COVID-19 mortality rates in Mexico. METHODOLOGY: We analyzed the mortality rate for each of the 2,457 municipalities in Mexico, one of the countries with highest COVID-19 mortality rate, during the first seven months of the pandemic to identify factors associated with higher mortality, including demographic, health-related characteristics (prevalence of obesity, diabetes, and hypertension in adults older than 20 years old), and altitude. RESULTS: During the first seven months of the COVID-19 pandemic there were 85,666 deaths reported in Mexico, with a cumulative mortality rate of 67 per 100,000 population. The mean mortality rate for the 2,457 municipalities in Mexico was 33.9 per 100,000 population. At a municipal level, the prevalence of diabetes and obesity, as well as high human development index, and location at < 500 or > 2000 above sea level were associated with higher mortality rate. CONCLUSIONS: Elevated obesity and diabetes prevalence explain, in part, high COVID-19 mortality rates registered in certain municipalities in Mexico. These results suggest that a regionalized approach should be considered to successfully limit the impact of SARS-CoV-2.


Assuntos
COVID-19/epidemiologia , COVID-19/mortalidade , Ecologia , Obesidade/epidemiologia , Adulto , Diabetes Mellitus/epidemiologia , Feminino , Humanos , Hipertensão/epidemiologia , Masculino , México/epidemiologia , Pessoa de Meia-Idade , Obesidade/complicações , Obesidade/virologia , Prevalência , Adulto Jovem
15.
Zootaxa ; 5020(1): 171-183, 2021 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-34810414

RESUMO

The genus Galumnopsis (Galumnellidae) is recorded for the first time from Mexico with a new species described here, and Notogalumna (Galumnidae), represents a second record for the country, also with a new species; both from the tropical rainforest in Veracruz state. Notogalumna rickiglesiasi sp. nov. lives in the canopy, while Galumnopsis andydoreyae sp. nov. inhabits soil and litter of Guarea glabra and Astrocaryum mexicanum; most likely they are not only restricted to these plants but are distributed in this forest on a continuous stratum across canopy (Notogalumna) or soil (Galumnopsis). A key for the species of each genus is included.


Assuntos
Ácaros , Floresta Úmida , Animais , Florestas , México , Solo
16.
Zootaxa ; 5016(3): 430-440, 2021 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-34810438

RESUMO

We describe a new species of the genus Dixella Dyar Shannon of Mexico. Specimens were collected in Lagunas de Santo Domingo, Municipality of Huatusco, Veracruz, a small vegetation-lined lake within an increasingly relictual mountain cloud forest. This species is most closely related to Dixella cumbrica Peters Cook, 1966, based upon the shape of the apical lobe of the gonocoxite and flattened gonostylus. Also, we include the first record of Dixella shannoni (Lane, 1942), in Mexico, based upon specimens collected in Santiago Yaveo, Oaxaca. Additionally, we present a list of all localities in which dixids have been collected in Mexico.


Assuntos
Dípteros , Animais , México
17.
Zootaxa ; 5016(3): 419-429, 2021 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-34810439

RESUMO

A new genus and species, Guttulapsyche mayaensis gen. et sp. nov., of Psychidae are described from Mexico. The new taxon shares some characters with Arrhenophaninae and several others with Typhoniinae. Together with Antillonatus sessilis Nez Davis, 2016 it is already the second Neotropic species with a complex of characteristics that deviates from the previous understanding of the two subfamilies. The morphology of adults, larva, and pupa is described and illustrated. The larval cases are attached at the distal end, a behaviour that is unique among all known Psychidae. Information on distribution and habitat as well as some ecological data are provided.


Assuntos
Lepidópteros , Mariposas , Animais , Etologia , Insetos , Larva , México
18.
Zootaxa ; 5015(1): 1-69, 2021 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-34810466

RESUMO

The species of Pentatomidae known to occur north of Mexico, comprising 223 species in 68 genera, are enumerated with taxonomic notes and updated and annotated distributions. Included in this update are 126 new state records reported for 62 pentatomid species in 30 genera. The copious annotations in these distributions and attendant bibliography serve as an extensive compilation of overlooked references that might contain distributional records for other insect, especially heteropteran, species.


Assuntos
Heterópteros , Animais , México
19.
Zootaxa ; 5005(4): 460-502, 2021 Jul 28.
Artigo em Inglês | MEDLINE | ID: mdl-34810601

RESUMO

The knowledge of the family Cerambycidae (Coleoptera) from Mexico is updated based on the literature where records of species from Mexico have been published. In addition, Callimoxys sanguinicollis (Olivier, 1800), Laticranium mandibulareLane 1959, Bellamira scalaris(Say, 1826), and Strangalia opleri Linsley Chemsak, 1976 are recorded as new records for the country. A total of 1,836 species (including subspecies), 503 genera, 81 tribes, and seven subfamilies are recorded from Mexico. A complete checklist of taxa is provided.


Assuntos
Besouros , Animais , México
20.
Zootaxa ; 5061(2): 323-339, 2021 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-34810625

RESUMO

Cybister (s. str.) poblanus sp. n. is described from the Puebla state in Mexico. The species belongs to a group of members of the genus Cybister Curtis, 1827, which occur only in North America (including the Caribbean Islands) and are characterised by having several distinct ridges on the metacoxae (stridulatory organ) in males. The new species is the third of the genus reported for Mexico and the fourth for North America. It can easily be separated from its congeners by its great size and the shape of the male aedeagus. The habitus, the male genitalia and other details of C. poblanus sp. n. are illustrated and photographs of the male genitalia of the other three Cybister are given for comparison. Megadytes (Bifurcitus) lherminieri (Gurin-Meville, 1829) and M. (B.) magnus Trmouilles Bachmann, 1980 are the only other big species of subfamily Cybistrinae which occur in North America. They are externally similar to the new species and can easily be confused with it, hence the illustrations of their aedeagi to facilitate identification. A key to species is given for all species of Cybistrinae occurring in America north of Belize and Guatemala, including Cuba and the Bahamas. Lectotypes are designated for Cybister flavocinctus Aub, 1838, Cybister explanatus var. fusculus Zimmermann, 1919, and Cybister (Megadytes) aubei Wilke, 1920. Notes are given on material of some Neotropical and Nearctic species of Cybister and Megadytes stored in different museums.


Assuntos
Besouros , Animais , Masculino , México
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