Antiparasitic resistances described in intestinal parasites which affect small animals

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Melanogenesis and Melasma Treatment

Melanocytes are highly specialised dendritic cells that transfer melanin to keratinocytes in subcellular lysosome-like organelles called melanosomes, where melanin is synthesised and stored. Melanin is a complex pigment that provides colour and photoprotection to the skin, hair, and eyes of mammals. The regulation of melanogenesis includes various mechanisms and factors including genetic, environmental, and endocrine factors. Knowledge of the pigmentation process is important not only to understand hyperpigmentation but also to design treatments and therapies to treat them. Whitening cosmetics with anti-melanogenesis activity are very popular. In the present manuscript, we review the mechanisms and the signalling pathways involved in skin pigmentation and we specifically focus on the alteration of melanogenesis that leads to melasma and results in hyperpigmentation. Finally, current therapies and treatments including topical, oral, and phototherapies are discussed and described, with a special emphasis on the cosmetics' action

Mir34a constrains pancreatic carcinogenesis

Several studies have shown that over 70 different microRNAs are aberrantly expressed in pancreatic ductal adenocarcinoma (PDAC), affecting proliferation, apoptosis, metabolism, EMT and metastasis. The most important genetic alterations driving PDAC are a constitutive active mutation of the oncogene Kras and loss of function of the tumour suppressor Tp53 gene. Since the MicroRNA 34a (Mir34a) is a direct target of Tp53 it may critically contribute to the suppression of PDAC. Mir34a is epigenetically silenced in numerous cancers, including PDAC, where Mir34a down-regulation has been associated with poor patient prognosis. To determine whether Mir34a represents a suppressor of PDAC formation we generated an in vivo PDAC-mouse model harbouring pancreas-specific loss of Mir34a (Kras(G12D);Mir34a(Delta/Delta)). Histological analysis of Kras(G12D);Mir34a(Delta/Delta) mice revealed an accelerated formation of pre-neoplastic lesions and a faster PDAC development, compared to Kras(G12D) controls. Here we show that the accelerated phenotype is driven by an early up-regulation of the pro-inflammatory cytokines TNFA and IL6 in normal acinar cells and accompanied by the recruitment of immune cells. Our results imply that Mir34a restrains PDAC development by modulating the immune microenvironment of PDAC, thus defining Mir34a restauration as a potential therapeutic strategy for inhibition of PDAC development

Allogenic adipose-derived stem cell therapy overcomes ischemia-induced microvessel rarefaction in the myocardium : systems biology study

Altres ajuts: This work was supported by the Spanish Cardiovascular Network of Cell Therapy (Red TerCel RD16/0011/018) and Ciber CV(CB16/11/00411) from the Instituto Salud Carlos III (to LB). Additional funding was received from Plan Nacional de Salud (PNS SAF2016-76819-R to LB, 2015-71653-R to GV) from the Spanish Ministry of Science and Innovation and FEDER funds; from Instituto de Salud Carlos III (CPII13/00012 to GA); and support from a grant from the Muy Ilustrísima Administración from the Hospital de la Santa Creu I Sant Pau (to MG). The authors thank Fundacion Jesus Serra, Barcelona for continuous support.Myocardial microvascular loss after myocardial infarction (MI) remains a therapeutic challenge. Autologous stem cell therapy was considered as an alternative; however, it has shown modest benefits due to the impairing effects of cardiovascular risk factors on stem cells. Allogenic adipose-derived stem cells (ASCs) may overcome such limitations, and because of their low immunogenicity and paracrine potential may be good candidates for cell therapy. In the present study we investigated the effects of allogenic ASCs and their released products on cardiac rarefaction post MI. Pig subcutaneous adipose tissue ASCs were isolated, expanded and GFP-labeled. ASC angiogenic function was assessed by the in-vivo chick chorioallantoic membrane (CAM) model. Pigs underwent MI induction and 7 days after were randomized to receive: allogenic ASCs (intracoronary infusion); conditioned media (CM; intravenous infusion); ASCs + CM; or PBS/placebo (control). Cardiac damage and function were monitored by 3-T cardiac magnetic resonance imaging upon infusion (baseline CMR) and 1 and 3 weeks thereafter. We assessed in the myocardium: microvessel density; angiogenic markers (CD105, CD31, TF, VEGFR2, VEGFR1, vWF, eNOS, CD62); collagen deposition; and reparative fibrosis (TGFβ/TβRII/collagen). Differential proteomics of ASCs and CM was performed to characterize the ASC protein signature. CAM indicated a significant ASC proangiogenic capacity. In pigs after MI, only PBS/placebo animals displayed an impaired cardiac function 3 weeks after infusion (p < 0.05 vs baseline). Administration of ASCs + CM significantly enhanced neovessel formation and favored cardiac repair post MI (p < 0.05 vs the other groups). Molecular markers of angiogenesis were significantly upregulated both at transcriptional and protein levels (p < 0.05). The in-silico bioinformatics analysis of the ASC and CM proteome (interactome) indicated activation of a coordinated protein network involved in the formation of microvessels and the resolution of rarefaction. Coadministration of allogenic ASCs and their CM synergistically contribute to the neovascularization of the infarcted myocardium through a coordinated upregulation of the proangiogenic protein interactome. The online version of this article (doi:10.1186/s13287-017-0509-2) contains supplementary material, which is available to authorized users

Hospital at home for the management of COVID-19: preliminary experience with 63 patients

Alternatives to conventional hospitalization are needed to increase health systems resilience in the face of COVID-19 pandemic. Herein, we describe the characteristics and outcomes of 63 patients admitted to a single HaH during the peak of COVID-19 in Barcelona. Our results suggest that HaH seems to be a safe and efficacious alternative to conventional hospitalization for accurately selected patients with COVID-19

Confirmation of preeclampsia-like syndrome induced by severe COVID-19 : An Observational Study

Since the outbreak of the COVID-19 pandemic, some studies have reported an increased preeclampsia (PE) incidence in pregnant women with SARS-CoV-2 infection. Several explanations for this association have been proposed, including a preeclampsia-like syndrome induced by severe COVID-19. This syndrome was described in a small case series and has not been confirmed in larger studies and its impact in perinatal outcomes has not been studied. The aim of this study was to confirm the preeclampsia-like syndrome due to COVID-19 and to investigate its implications in pregnancy outcomes and prognosis. This was a prospective, observational study conducted in a tertiary referral hospital. Inclusion criteria were pregnant women admitted to the Intensive Care Unit for severe pneumonia due to COVID-19. They were classified in three groups based on clinical and laboratory findings: PE, PE-like syndrome, and women without PE features. The three cohorts were analyzed and compared at three different times: before, during and after severe pneumonia. The main outcomes were incidence of adverse perinatal outcomes and signs and symptoms of PE, such as hypertension, proteinuria, thrombocytopenia, elevated liver enzymes and increased angiogenic factors (soluble fms-like tyrosine kinase-1 to placental growth factor ratio [sFlt-1/PlGF]). A total of 106 women were admitted to Intensive Care Unit due to severe pneumonia and 68 were included in the study. Of those, 53 (50.0%) did not meet the diagnostic criteria for PE and remained pregnant after pneumonia (non-PE), seven (6.6%) met the diagnostic criteria for PE, had abnormal (>38) sFlt-1/PlGF (PE) and delivered during severe pneumonia, and eight (7.5%) met the diagnostic criteria for PE, had normal (≤38) sFlt-1/PlGF (PE-like) and did not deliver during pneumonia. Despite not having delivered, most PE-related features improved after severe pneumonia in women with PE-like syndrome. Women with PE had significantly poorer outcomes than women with PE-like syndrome or without PE. More than 50% of women with severe COVID-19 and diagnostic criteria for PE may not be PE but a PE-like syndrome, which may affect up to 7.5% of women with severe COVID-19. PE-like syndrome might have similar perinatal outcomes to those of normotensive women with severe pneumonia due to COVID-19. For these reasons, PE-like syndrome should be excluded by using sFlt-1/PlGF in future research and before making clinical decisions

Confirmation of preeclampsia-like syndrome induced by severe COVID-19: an observational study

COVID-19; Preeclampsia; PregnancyCOVID-19; Preeclampsia; EmbarazoCOVID-19; Preeclampsia; EmbaràsBACKGROUND Since the outbreak of the COVID-19 pandemic, some studies have reported an increased preeclampsia incidence in pregnant women with SARS-CoV-2 infection. Several explanations for this association have been proposed, including a preeclampsia-like syndrome induced by severe COVID-19. This syndrome was described in a small case series and has not been confirmed in larger studies, and its effect on perinatal outcomes has not been studied. OBJECTIVE This study aimed to confirm the preeclampsia-like syndrome because of COVID-19 and to investigate its implications on pregnancy outcomes and prognosis. STUDY DESIGN This was a prospective, observational study conducted in a tertiary referral hospital. The inclusion criteria were pregnant women admitted to the intensive care unit for severe pneumonia because of COVID-19. They were classified into 3 groups based on clinical and laboratory findings: preeclampsia, preeclampsia-like syndrome, and women without preeclampsia features. The 3 cohorts were analyzed and compared at 3 different times: before, during, and after severe pneumonia. The main outcomes were incidence of adverse perinatal outcomes and signs and symptoms of PE, such as hypertension, proteinuria, thrombocytopenia, elevated liver enzymes, and increased angiogenic factors (soluble fms-like tyrosine kinase 1–to–placental growth factor ratio). RESULTS A total of 106 women were admitted to the intensive care unit because of severe pneumonia, and 68 women were included in the study. Of those, 53 (50.0%) did not meet the diagnostic criteria for preeclampsia and remained pregnant after pneumonia (non-preeclampsia); 7 (6.6%) met the diagnostic criteria for preeclampsia, had abnormal (>38) soluble fms-like tyrosine kinase 1–to–placental growth factor ratio (preeclampsia), and delivered during severe pneumonia, and 8 (7.5%) met the diagnostic criteria for preeclampsia, had normal (≤38) soluble fms-like tyrosine kinase 1–to–placental growth factor ratio (preeclampsia like), and did not deliver during pneumonia. Despite not having delivered, most preeclampsia-related features improved after severe pneumonia in women with preeclampsia-like syndrome. Women with preeclampsia had significantly poorer outcomes than women with preeclampsia-like syndrome or without preeclampsia. CONCLUSION More than 50% of women with severe COVID-19 and diagnostic criteria for preeclampsia may not be preeclampsia but a preeclampsia-like syndrome, which may affect up to 7.5% of women with severe COVID-19. Preeclampsia-like syndrome might have similar perinatal outcomes to those of normotensive women with severe pneumonia because of COVID-19. For these reasons, preeclampsia-like syndrome should be excluded by using soluble fms-like tyrosine kinase 1–to–placental growth factor ratio in future research and before making clinical decisions

Medicalized Hotel as an Alternative to Hospital Care for Management of Noncritical COVID-19

Background: Since the first wave of COVID-19, alternatives to conventional hospitalization have been proposed for the provision of different levels of care, ranging from shelter during quarantine to hospital-level medical care. Objective: To describe the adaptation of a hotel by a hospital-at-home team to provide hospital-level care to patients with COVID-19 during the first wave of the pandemic in Barcelona, Spain. Methods: Hospital Clínic de Barcelona (HCB) is a 750-bed, public, tertiary teaching hospital serving 560 000 persons in the metropolitan area of Barcelona, Spain. In March 2020, the hospital-at-home unit was instructed to medicalize a hotel ('health hotel' [HH]) in downtown Barcelona. The aim of this initiative was to help decongest hospitals in the area by admitting patients with low dependency (Barthel Index score >60) and mild to severe COVID-19 from emergency departments or COVID-19 hospital wards, according to Centers for Disease Control and Prevention clinical guideline

“PREVALENCE OF LUMBAR PAIN IN THE INTERNALS OF PHYSICAL THERAPY AND REHABILITATION OF THE NORBERT WIENER UNIVERSITY, 2017”

TesisEl presente estudio tuvo como objetivo Determinar la prevalencia del dolor músculo esquelético lumbar (DML) en los internos de Terapia Física y Rehabilitación que se encuentran realizando prácticas pre profesionales según edad, sexo y sede hospitalaria durante los meses de octubre y noviembre del 2017. La población estuvo conformada por 104 internos cuyas edades fluctúan entre los 20 – 35 años. El estudio fue de tipo descriptivo y transversal. El instrumento utilizado fue el cuestionario para discapacidad dolor lumbar de Owestry. Para analizar la información y correlación entre variables se utilizó la prueba de Chi-Cuadrada, encontrándose como resultado que el 79.8% fue del sexo femenino y el 20.2% del sexo masculino, con una media de 27.4 años y una desviación estándar de 7.6 años. Se halló una mínima limitación funcional por dolor lumbar en los internos de fisioterapia; en todos al relacionar las variables no hubo diferencias significativas

Galápago de Florida – Trachemys scripta (Schoepff, 1792)

Reptiles - Orden Quelonios - Familia Emydidae en la Enciclopedia Virtual de Vertebrados Españoles, http://www.vertebradosibericos.org/. Versiones anteriores: 11-03-2011.A comprehensive review of the natural history of the Pond Slider Trachemys scripta in Spain.Peer reviewe